• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The subject of the present invention is a method for cutting and connecting two butt and stub strips, namely a first strip (2a) providing the supply and a second strip (2b) of replacement in a machine. unwinding comprising a cutting and connecting device comprising two connection assemblies (la, lb) arranged symmetrically with respect to a cutting plane and connection (P). It consists in producing, from such a device, steps for preparing the second strip and then immobilizing the strips in said plane, cutting them simultaneously and transversely, and releasing the cut portions (20b, 21a). ) not to connect, and butt connection of their cut parts (20a, 21b) to be connected. It also relates to a cutting and connecting device and a machine for carrying out said method.
    公开号:FR3051781A1
    申请号:FR1654645
    申请日:2016-05-24
    公开日:2017-12-01
    发明作者:Bernard Muller
    申请人:Monomatic SA；
    IPC主号:
    专利说明:

    DESCRIPTION
    The present invention relates to the field of machines for unwinding strip materials from reels for feeding unrolling machines, especially forming machines such as printing machines, cutters or folder-gluers, and for object a method of cutting and connecting two strips end-to-end and stop in a machine unwinding and cutting and connecting device for carrying out said method. It also relates to a unwinding machine equipped with such a device.
    A unrolling machine generally comprises two reel members respectively carrying a finishing web reel, i.e. a web feeding a downstream converting machine and a reel of new tape intended to be connected end-to-end. end with the finishing band at the end of the course of the latter to ensure the continuity of the strip supply downstream of the machine.
    In known unrolling machines, the connection of the finishing strip with the beginning of the new strip is generally performed during a temporary stop of the unwinding machine, the finishing strip, to ensure the continuity of the unwinding during this provisional period, passing in a tape reserve disposed between the output of the unwinding machine and the downstream processing machine.
    Among the known unrolling machines known from ER-A-2618769, a unrolling machine consisting essentially of two reel spools capped at their upper part by a bridge structure for receiving a strip accumulator and by two sets of connection strips at a standstill, also known as connecting boxes or connecting half-cassettes, each dedicated to a reel holder tower, that is to say to a unwinding strip or replacement coil wound on the spool mounted on such a spool tower, and mounted movable in translation transversely to the web under the bridge structure.
    The connection assemblies are mounted in opposition, each under the bridge structure, movably transverse to the latter, by means of horizontal rails integral with said structure and projecting forwardly relative thereto, and are fixed in translation each with the corresponding tower, in order to be able to follow all the movements of the corresponding tower.
    On the face facing the opposite connection assembly, each connection assembly has a plate provided, on the one hand, with a transverse slit inclined with respect to the horizontal, in which is mounted, displaceable by means of a actuator or linear motor, a cutting device, and, secondly, several rows of air suction holes, or clamps, these holes or clamps being arranged, on the one hand, from and other of the slot and, on the other hand, parallel to the lower edge of the plate, which is further mounted along one of its horizontal edges, preferably along its lower edge, pivotally on the box, the pivot axis of the plate simultaneously forming the support of return rollers of the strip to unroll.
    The connection assemblies have a width greater than the greatest possible width of the strips to be unrolled and their plate are, on the one hand, symmetrical with respect to a vertical plane passing between the boxes and, on the other hand, each loaded on its inner face by a pivoting device about the axis.
    Simultaneous actuation of the displacement device of each plate has the effect of causing said plates to pivot about their axis, and of making an intimate application of the central planes enclosing the transverse slots of said plates with the interposition of the finishing and new bands, as well as of their adhesive butt joint.
    This unrolling machine makes it possible to cut and connect precisely between the finishing and new belts with great accuracy with a short interruption of the unwinding device, requiring downstream accumulation.
    However, these known unrolling machines do not fully meet the new production requirements that impose higher speeds with a guarantee of perfect connection.
    The document FR 2 930 534 proposes a device for cutting and gluing end to end to ensure a reduction in connection time while ensuring a perfect connection. Such a device is provided for a unwinding machine comprising two coils and consisting essentially of two reel-carrying elements carrying said reels and capped at their upper part by a bridge structure capable of receiving a tape accumulator and by two connection assemblies. stationary belts, each assigned to a reel-carrying member and arranged symmetrically with respect to the unwinding axis of the belts or the plane containing said axis. In such a device, each connection assembly, also known as a connection box or a half-connection cassette, comprises a station for preparing and transferring a seal, a holding and cutting device for the new band or of the finishing band and possibly means for moving the band connection assemblies towards and away from each other.
    However, in a machine of the type of the document FR 2 930 534, the device for preparation and transfer of seal is complex and the machine requires a transfer system to be able to access behind the moving tape. In addition, a machine of this type requires moving apart or moving away, by translation or rotation, from one another, the two connection assemblies, to carry out the preparation step, in order to create a zone of sufficiently large passage between said sets and / or around them to allow the passage of an operator so that the latter can achieve the preparation. It results from this spacing or removal, the need to provide a large range of deflection area which results in a large size of the machine.
    Document FR 2 332 115 relates to a device for assembling two end-to-end strips to put a new band at the end of a finishing strip and whose ends of band to be joined by a ribbon are situated in the same plane and separated from one another. short distance. It comprises clamping means comprising a clamping piece comprising an end-to-end control bar and cutting and assembly means mounted on carriages movable along an elongated bar. It also includes an accumulation device to temporarily stop the band during the connection time.
    However, an apparatus of the type disclosed in document FR 2332 115 or the method implemented by such an apparatus requires the use of a coil positioning device so that the new strip is always on the same side of the strip. in progress. In addition, this type of apparatus requires a second cut to cut a thin strip at the end of the new strip and remove it to leave room for the adhesive for the end-to-end connection. On the other hand, in this type of device, the connection is made with a single adhesive or seal, that is to say only with a single piece of adhesive tape, applied to one of the sides or faces of the strips. This does not allow for an efficient and strong connection for a thick material because, by passing on a guide roller or driving the tape, the adhesive can be damaged or torn off.
    The object of the present invention is to overcome at least one of these drawbacks by proposing a method of cutting and connecting two butt strips and stopping in a machine to unroll, a device for cutting and connecting two end-to-end strips for the unwinding machine for carrying out said method, and a machine for unrolling equipped with such a device, making it possible in particular to obtain a simpler preparation and a smaller size of the device or of the machine while ensuring that the connection is kept intact. For this purpose, the method of cutting and connecting two butt and stop strips in a unwinding machine comprising a cutting and connecting device and two reel elements, one of the reel elements carrying a reel able to unroll a first band supplying the web of the machine and the other reel-carrying member carrying a reel able to unroll a second band forming a replacement band, each band having two opposite longitudinal edges and two opposite sides, said cutting and connecting device comprising two connection assemblies arranged symmetrically with respect to a cutting and connecting plane and being able to cut simultaneously and transversely the two strips in said plane along a direction and a cutting line crossing successively the two longitudinal edges of each strip, perpendicularly or at an angle to them , each connection assembly comprising a mobile application support, characterized in that it consists in producing, by means of said cutting and connecting device and of said machine fed in a strip by said coils, the following steps according to the two phases A / and B /: A / during the course of the first band: - a / engage the second band between the connection sets to place it and maintain it in a preparation position in which said second band extends on both sides, upstream and downstream of the cutting line, b) placing, outside the connection assemblies, a piece of adhesive tape or the like on at least one of the supports of application moved externally for this purpose, - c / immobilize the second band in the cutting plane and connection, B / stopping the unfolding of the first band at least in its downstream part: - the where appropriate, carry out the step b / and / or step c / in the case where they are not performed in the phase A /, - d / immobilize the first band in the cutting plane and connection, - e / cut simultaneously and transversely the two strips in the direction and the cutting line, which has the effect of separating each strip into two band parts, namely, on the one hand, a portion of cut downstream strip located downstream of the line of cut and, on the other hand, a portion of upstream cut strip located upstream of the cutting line and connected to its coil, f / maintain the immobilization, in the cutting plane and connection, of the upstream band portion cut off the second strip and the cut-off strip portion of the first strip in the cutting and connecting plane, g / disengaging, by moving or wrapping the strip, the downstream strip portion of the second strip and the portion upstream band of the first band to release the connection area comprising the end of the downstream band portion of the first band and the end of the upstream band portion of the second band to be connected to each other; h) transferring the one or both pieces of tape to the connection area, simultaneously or successively, by applying it to one of the sides, or by applying each on one side, respective ends of the upstream and downstream cut strip portions to be connected in order to connect the two strips together with the one or both pieces of adhesive tape to form a new feed band.
    The device for cutting and connecting two end-to-end and stop bands, according to the present invention, for unwinding machine, allowing the implementation of the method according to the invention, said machine comprising said cutting device and connection and two reel members each adapted to carry a reel capable of unwinding a first web supply strip of the machine or a second web forming a replacement web, said cutting and connecting device comprising two connection assemblies arranged symmetrically with respect to a sectional and connecting plane and the two reel elements being disposed on either side of said plane, is essentially characterized in that it comprises a transverse section system comprising a cutting member and displacement means adapted to move said cutting member in the cutting plane and connecting in a direction and a transverse section line, substantially perpendicular or oblique with respect to the longitudinal edges, having the effect of simultaneously cutting the two strips, maintained in the state of immobilization in said plane, crossing successively their respective two longitudinal edges, and in that each connection assembly, dedicated to one or the other of said strips, comprises an adhesive application system comprising an application support adapted to hold a piece of adhesive tape or the like and moving means for application adapted to move the corresponding application support from a waiting position in the corresponding connection assembly to an application position of said piece of adhesive tape located in the cutting and connecting plane and conversely, a first immobilization system able to immobilize the first band in said cutting and connecting plane, and a second immobilization system adapted to maintain the second band in a preparation position and to immobilize the latter in the cutting and connecting plane, and a release system making it possible, after cutting, to disengage by displacement or winding of strip, the portions of strips cut and not intended to be connected to allow the choice to apply one or two pieces of adhesive flap by moving the two opposite application supports.
    The unwinding machine, according to the present invention, comprising a cutting and connecting device and two reel members each adapted to carry a reel capable of unwinding a first web supplying tape or a reel capable of unwinding a second band forming a replacement band, is characterized in that said cutting and connecting device consists of a cutting and connecting device according to the present invention and, preferably, in that it comprises a tape accumulator located downstream of the cutting and connecting device and being capable of being filled with a given length of first band, before stopping and immobilizing the latter, in the cutting and connecting device, and to ensure the continuity of the downstream supply during connection and immobilization of the first band in said device. The invention will be better understood, thanks to the following description, which refers to a preferred embodiment, given by way of non-limiting example, and explained with reference to the accompanying diagrammatic drawings, in which: FIG. 1 shows a longitudinal sectional view of the cutting and connecting device mounted in a unwinding machine, according to the present invention, in a vertical orientation, in the unwinding step of the first strip forming the pull-down and finishing strip and setting waiting for the second band forming the new replacement band to be connected to said first band, in the position of preparation of said second band, each connection unit being equipped with a band curvature rectifying system, - Figure 2 shows the cutter and connection device shown in Figure 1, in the immobilization step of the first band and the second band in the cutting and connecting plane, and in the step of the cross section of said strips, - Figure 3 shows the cutting device and connection shown in Figure 1, in the immobilization step of the downstream band portion cut off from the first web and unloading the cut web portion of the second web to be joined together end to end, and in the disengaging step by raising the web portion of the web that is cut off from the web and disengaging the upstream band portion of the first band by winding the latter around its coil. FIG. 4 shows the cutting and connecting device represented in FIG. 1, in the step of straightening the curved curvature of the first band; FIG. 5 shows the cutting and connecting device represented in FIG. 1; in the step of connecting with the pieces of adhesive strips or the like applied and fixed each, extending on either side of the line of cut, on one of the opposite sides of the two portions of strips downstream and upstream respectively, of the first and second webs immobilized in the connection plane; - Figure 6 shows the cutting and connecting device shown in Figure 1 in one embodiment without the web curvature rectifier system; - Figure 7 shows the system rectifier of the tape curvature and adhesive application system of the cutting and connecting device shown in FIG. 1; FIG. 8 shows the immobilization means upstream of the second immobilization system of each connection assembly of the cutting and connecting device shown in FIG.
    The figures show the implementation of the method of cutting and connecting two strips end-to-end and stopping in a unwinding machine comprising a cutting and connecting device, according to the present invention, and two reel elements. .
    According to the present invention, one of the reel-carrying elements carries a reel 3a able to unroll a first web 2a supplying the machine web feed and the other reel-carrying member carrying a reel 3b able to unroll a machine. second band 2b forming a replacement band, each band 2a, 2b having two opposite longitudinal edges and two opposite sides.
    Still in accordance with the present invention, the cutting and connecting device comprises two connection assemblies Ia, Ib arranged symmetrically with respect to a cutting and connecting plane P and is able to cut simultaneously and transversely the two strips 2a, 2b in said plane in a direction and a line of section successively passing through the two longitudinal edges of each strip, perpendicularly or at an angle to them. In addition, each connection assembly comprises a mobile application support 50a, 50b.
    The two reel-carrying elements, namely a first reel carrier and a second reel carrier, can be arranged, as is the case in the accompanying figures, on either side of the cutting and connecting plane P or, in a variant, not shown in the accompanying figures, on the same side but with return rollers located on either side of the latter.
    Still according to the present invention, the method consists in producing, by means of said cutting and connecting device and of said machine supplied with webs by said coils, the following steps according to the two phases A / and B /: A / during the unwinding of the first band 2a: - a / engage the second band 2b between the connection sets Ia and Ib to place it and hold it in a preparation position in which said second band extending, on both sides other, upstream and downstream of the cutting line (Figure 1), - b / placing, outside the connection assemblies, a piece of adhesive tape or the like on at least one of the application supports 50a and 50b moved externally for this purpose, c) immobilizing the second band in the cutting and connecting plane P, B / stopping the unwinding of the first band 2a at least in its downstream part : - if necessary, perform step b and / or / c / in the case where they are not performed in the phase A /, - d / immobilize the first band 2a in the connection plane P (Figure 2), - e / cut simultaneously and transversely the two strips 2a and 2b in the direction and the line of section, which has the effect of separating each band into two band parts, namely, on the one hand, a part of the downstream strip 20a or 20b cut off located downstream of the section line and, on the other hand, an upstream portion of the upstream strip 21a or 21b located upstream of the line of section and connected to its coil 3a or 3b (FIG. 2), immobilizing, in the cutting and connecting plane, the upstream strip portion 21b cut from the second strip 2b and the downstream strip portion 20a cut from the first strip 2a (FIG. 3), g / clearing, by web moving or winding, the downstream web portion 20b of the second web 2b and the upstream web portion 21a of the first web 2a for r to release the connection zone comprising the end of the downstream band portion of the first band 2a and the end of the upstream band portion of the second band 2b to be connected together (FIG. 3); connection zone, the two pieces of adhesive flap 6a and 6b, simultaneously or successively, by applying it on one of the sides, or by applying each on one side, respective ends of the upstream and downstream strip portions 20a and 21b cut to connect, that is to say on at least one of the opposite sides of the free ends of said parts, to make the connection of the two strips together with one or both pieces of adhesive tape 6a and or 6b to form a new feed band (Figure 4 and Figure 5).
    It will be understood that, by symmetry, at the end of the connection process illustrated in the accompanying figures where the coil 3a able to unwind the first strip 2a to supply the machine is carried by the first reel holder (not shown) located on one side of the cutting and connecting plane P (to the left thereof) and where the reel 3b adapted to unroll the second band 2b forming the replacement band is carried by the second reel holder located on the other side of said plane (to the right of the latter), in a next connection process, the coil 3a able to unwind the first strip 2a to ensure the strip supply of the machine will be carried by the second coil holder and conversely the coil 3b fit to unroll the second band 2b forming the replacement band will be carried by the first reel holder.
    In addition, it will be noted that in step e /, the inclination of the section line with respect to the longitudinal edges of the strips 2a, 2b to be cut can be determined as a function of the material of said strips. For example, with a material such as paper, it can be preferably determined a substantially perpendicular inclination and with a material such as cardboard it can be realized a more or less inclination. More particularly, it has been observed, in tests carried out by the present applicant, that the thicker the material, the greater the inclination with respect to said strips should be important to obtain a cut as efficient as possible, both cutting speed than 'in cutting quality.
    In a preferred embodiment of step h /, the or each piece of adhesive tape 6a or 6b can be transferred into the connection zone in a single translatory or rotational movement from a waiting position in the corresponding connection set to a connection position located in the connection area in the cutting and connecting plane P (FIGS. 4 and 5).
    Preferably, as can be seen in FIGS. 4 and 5, in step g /, the clearance of the cut-off strip portion 20b from the second strip 2b can be achieved by a downstream movement (FIGS. 4 and 5). or lateral (not shown) of said downstream strip portion 20b cut.
    In step g /, the clearance of the upstream band portion 21a cut from the first band 2a can be achieved by a winding (represented by E in FIG. 3) of the latter around its coil 3a (FIG. 3). and / or, in a form not shown, by gravity and / or by blowing and / or by any other suitable means of release. In the case of a release by gravity, in particular in a vertical position of the device according to the present invention, the portion of upstream strip 21a cut off will be released by moving naturally, after cutting, by its weight falling under the effect of gravity (component of the force of gravity). The winding of the upstream band portion 21a to achieve the clearance thus allows a total clearance of the band portion 21a cut from the first strip 2a outside the cutting device and connection.
    In a particular embodiment, with reference to FIG. 4, it can be seen that the method can consist, from a cutting and connecting device, according to the present invention, of which each connection assembly 1a or 1b may further comprise, as will be discussed below, a tape bend rectifying system 1a or 11b having a rectifying contact element 110a or 110b (FIGS. 1, 2, 3, 4, 5, 7), in which step h / and in the case where the first strip 2a and / or the second strip 2b are curved with their opposite sides having a convex curvature, to successively transfer, in the connection zone, the two pieces of adhesive tape 6a and 6b that is, in a first step, according to the orientation of the convexity of the curvature, the piece of adhesive flap 6a or 6b carried by the application support 50a or 50b located on the side of the convex curvature, and to straighten the curvature of the first band 2a and / or the second strip 2b, to make the latter as flat as possible by coming into pressure contact on the other opposite side of the cut strip portions 20a and 21b to connect first and second strips 2a and 2b to the means of the other rectifying contact element 110a or 110b opposite, then, optionally, in a second step, the other piece of adhesive tape 6a or 6b to finalize the connection.
    The appended figures, as already mentioned in part in the description of the process above, show that the cutting and connecting device, according to the present invention, of two butt strips and machine stop unwinding and allowing the implementation of the method according to the present invention, said machine comprising said cutter and connection device and two reel members each adapted to carry a coil 3a or 3b able to unwind a first strip 2a ensuring the The web feed of the machine or a second web 2b forming a replacement web comprises two connecting sets 1a and 1b arranged symmetrically with respect to a cutting and connecting plane P.
    According to the present invention, such a cutting and connecting device comprises a transverse cutting system 4 comprising a cutting member 40 and moving means 41 able to move said cutter member in the cutting and connecting plane P in accordance with a direction and a cross-sectional line, substantially perpendicular or oblique with respect to the longitudinal edges, having the effect of simultaneously cutting the two strips 2a and 2b, maintained in the state of immobilization in said plane, crossing successively their two edges longitudinal dimensions.
    Still in accordance with the present invention, each connection assembly Ia or Ib, dedicated to one or the other of said strips 2a or 2b, comprises: an adhesive application system 5a or 5b comprising an application support 50a or 50b adapted to hold a piece of adhesive tape 6a or 6b or the like and moving means able to move the corresponding application support 50a or 50b from a waiting position in the corresponding connection assembly up to an application position, the piece of adhesive tape 6a or 6b, located in the cutting plane and connection P and vice versa, - a first immobilization system 7a or 7b, 8, 10a or 10b, 10c able to immobilize the first band 2a in the cutting plane and connection. a second immobilization system 9a or 9b, 10a or 10b, 10c able to maintain the second band 2b in a preparation position and to immobilize the latter in the cutting and connecting plane P, - a clearance system 3a , 12a or 12b making it possible, after cutting, to disengage, by displacement or winding of the strip, the portions of strips 21a and 20b that are cut and not intended to be connected in order to allow the choice of the operator the application of one or two pieces adhesive tape by moving one or both of the opposing application supports 50a and 50b.
    In a preferred embodiment, the displacement means for the application 51a, 52a, 51b, 52b may be able to move the corresponding application support 50a, 50b in a single translational or rotational movement from its position. waiting towards its application position.
    In the case where the displacement means for apphcation 51a, 52a, 51b, 52b are able to move the corresponding application support 50a, 50b in a single rotational movement, said displacement means for the application may consist, as can be seen in the figures and more particularly in FIG. 7, in a lever system that can comprise, on the one hand, a drive rod 51a, 51b on which the application support 50a, 50b can be fixed. corresponding and which can be adapted to pivot about a first pivot 510a, 510b parallel to the cutting plane and connection P and, secondly, an actuator 52a, 52b adapted to act on said rod to perform its pivoting. If necessary, said actuator may consist of a jack comprising a rod 520a, 520b hinged at its end to said connecting rod around a second pivot 521a, 521b, while the body 522a, 522b of the jack can be pivotally mounted around a third pivot 523a, 523b parallel to said first and second pivots.
    In the case where the displacement means for apphcation 51a, 52a, 51b, 52b are able to move the corresponding application support 50a, 50b in a single translational movement, said displacement means for the application may consist, in a manner not shown in the figures, in an actuator, for example, of the hydraulic or pneumatic cylinder type.
    Note that in the case where the displacement means for the application 51a, 52a, 51b, 52b are able to move the corresponding application support 50a, 50b in a single rotational movement, this embodiment requires less space or clearance to implement it with another means of movement, including translation, which puts all the elements in a smaller space and less cumbersome.
    Each adhesive application system 5a, 5b may further comprise displacement means for the preparation 53a, 54a or 53b, 54b able to move the corresponding application support 50a or 50b from a preparation position located at the outside the cutter and connection device, that is to say in particular outside the connecting assembly Ia or Ib corresponding, and provided to receive, that is to say to receive manually or automatically to the using a gripping means and not shown, a piece of adhesive flap 6a or 6b to the waiting position located in the corresponding connection assembly, Ib, and vice versa (all figures and in particular Figure 7).
    The displacement means for the preparation 53a, 54a or 53b, 54b may be able to move the application support 50a or 50b, which may for example be in the form of a bar, corresponding in a translational movement parallel to the plane In addition, said displacement means for the preparation 53a, 54a or 53b, 54b may consist of a slide system comprising a slide 53a or 53b fixed on the displacement means for the application 51a, 52a or 51b, 52b extending parallel to the cutting and connecting plane P and a movable portion 54a or 54b, forming a slide, fixed on the corresponding application support 50a or 50b, where appropriate the slide 53a or 53b being fixed on the drive rod 51a or 51b (see in particular Figure 7).
    Each application support 50a or 50b may comprise an external application face against which the respective adhesive flap piece 6a or 6b may be applied. In addition, in the case where the displacement means for the application 51a, 52a, 51b, 52b are able to move the corresponding application support 50a, 50b in a single rotational or pivoting movement, the outer face of application of each support which is parallel to the cutting and connecting plane P in the application position can be inclined, in the waiting position, due to rotation, with respect to the cutting and connecting plane P, and maintain this inclination in the preparation position by the aforementioned translational movement, which facilitates the installation and application of the piece of adhesive tape 6a or 6b concerned by the operator outside connection sets or simplify the operation of the cutting and connecting device, unlike a system that would maintain an orientation of the outer face of application parallel to the cutting plane and connection or necessary it would be a change of orientation of said face between the waiting position where it would be parallel to the cutting plane and connection and the preparation position. On the other hand, it should be noted that in the case where a single tape of adhesive tape 6a or 6b is applied, it may be preferably provided to activate the two opposing application supports 50a and 50b, one of the application supports 50a or 50b having the function of supporting the adhesive tape paper 6a or 6b and the other application support 50a or 50b not comprising paper tape 6a or 6b having the function of forming a counterpart of 'application.
    The first immobilization system 7a or 7b, 8, 10a or 10b, 10c of each assembly may comprise first downstream immobilization means 7a, 7b able to carry out a holding pressure, preferably a holding pressure by clamping, on the downstream portion of the first strip 2a located downstream of the cutting line and, if appropriate, upstream immobilizing means 10a, 10b, 10c able to carry out a holding pressure, preferably a clamping holding pressure, on the upstream band portion 21a of the first band 2a located upstream of the section line.
    In a preferred embodiment, the downstream immobilization means 7a, 7b may form first downstream immobilization means and the cutting and connecting device may further comprise second downstream immobilization means 8 able to carry out a pressure. additional support on the first band 2a downstream of said first downstream immobilization means.
    The second immobilization system 9a, 9b, 10a, 10b, 10c may comprise, on the one hand, downstream immobilization means 9a, 9b able to carry out a holding pressure, preferably a clamping holding pressure, on the downstream band portion 20b of the second band 2b, preferably at its free end, to maintain the latter in the preparation position and, secondly, upstream immobilization means 10a, 10b, 10c able to performing a holding pressure, preferably a clamping holding pressure, on the upstream band portion 21b of the second band 2b located upstream of the cutting line to immobilize said second band 2b in the cutting and connecting plane P and to maintain its upstream band portion 21b cut in said plane for connection with the downstream band portion 20a cut from the first band 2a. If appropriate, preferably, said upstream immobilizing means of the second band 2b can also form the upstream immobilization means of the first band 2a.
    The upstream immobilizing means 10a, 10b, 10c of the second immobilization system 9a, 9b, 10a, 10b, 10c may be able to carry out a clamping holding pressure and may comprise for this purpose, on the one hand, a holding lateral plate 100a, 100b movable having a holding lateral face 101a, 101b parallel to the cutting and connecting plane P and an actuator 102a, 102b able to act on said holding lateral plate to move it in translation in a perpendicular direction to said cutting plane and P connection and, secondly, a central holding plate 10c common to the two sets of connection la, Ib and comprising two opposite central holding faces 100c, 101c and respectively arranged opposite the one of the lateral support faces 101a, 101b of one of the lateral holding plates 100a, 100b, so as to be able to perform clamping holding pressures, under the action said holding actuators, on the two opposite faces of the second band 2b, where appropriate on the two opposite faces of the first band 2a, passing between one of the front holding faces 101a or 101b and one of the central faces holding 100c or 101c and held tight between them to immobilize in its corresponding part (see in particular Figure 8).
    Each holding actuator 102a or 102b may be of the hydraulic or pneumatic cylinder type and may comprise a rod connected at its free end to the face 103a or 103b of the corresponding lateral support plate 100a or 100b opposite its lateral support face 101a. or 101b.
    Each connection assembly may further comprise a tape bend rectifier system 11a or 11b comprising a tape bend rectifying member 110a or 110b having a contact face 111a or 111b, preferably with a smooth surface, and an actuator 112a or 112b able to act on the latter to move it from a rest position to a working position, substantially in the cutting and connecting plane P, with its contact face 111a or 111b extending, preferably symmetrically, on either side of the cutting line, in which working position it is able to come into pressure contact on one side of the cut strip portions 20a and 21b to connect first and second strips 2a and 2b . The side on which the contact face 111a or 111b comes into contact is that which is opposite to their side having a convex portion in the case where said strip portions have a curved shape, so as to make them as flat as possible to avoid any connection problems later. The band-bending rectifier element 11a or 11b may further form a counterpart of a section and may comprise for this purpose a slot forming a passage for the cutting member 40. The cutting member 40 may consist of a blade having a cutting edge extending transversely to the cutting and connecting plane P, preferably substantially perpendicular to the latter. More particularly, the cutting blade will be chosen with a shape and / or a material adapted to the material to be cut. In other variants, not shown, of the cutting member 40, it may consist, for example, in a rotary blade, a laser beam or a high pressure jet.
    The clearance system 3a, 12a or 12b may comprise, on the one hand, means for the downstream clearance 12a or 12b of the downstream strip portion 20b cut off from the second strip 2b, which is not intended to be connected, the said downstream clearance means 12a. or 12b being able to release said downstream band portion 20b of the second band 2b by a driving effect in displacement of the latter downstream and, on the other hand, upstream clearance means 3a of the band portion upstream 21a of the first band 2a not intended to be connected. The upstream clearance means may consist of the coil 3a capable of unwinding the upstream strip portion 21a cut from the first strip 2a and / or in gravity and / or blowing means and / or in any other means capable of disengaging the upstream band portion 21a of the first band 2a of the connection zone. The downstream clearance means 12a or 12b of each downstream clearance system 12a or 12b may comprise a displacement drive plate 120a or 120b, preferably a sheet. preferably oriented substantially perpendicularly to the cutting and connecting plane P, having two opposite sides, namely a downstream side and upstream side, displacement guiding means 123a, 123b, preferably in translation or pivoting from upstream to downstream and actuating means 121a, 122a or 121b, 122b able to act on said plate to move it downstream, preferably with a translational and / or pivoting movement (FIGS. 1, 2, 3, 4). , 5, 6).
    Such displacement guiding means 123a or 123b may preferably consist of a hinge allowing a pivotal movement (FIGS. 1, 2, 3, 4, 5, 6) or, not shown, sliding elements allowing to guide the plate in translation downstream or upstream parallel to the cutting plane and connection P.
    Such actuating means 121a, 121b or 122a, 122b of the clearance means 12a or 12b of each cutting and connecting assembly 1a or 1b may comprise an actuator 122a or 122b, for example of the hydraulic or pneumatic cylinder type, the rod terminates with a contact piece and thrust 121a or 121b coming into contact with the upstream side of said plate so as to carry a thrust downstream of the latter at the exit of the rod. The contact piece 121a or 121b does not necessarily need to be attached to or hinged to the drive plate 120a or 120b. Indeed, in a vertical orientation of the cutting plane and connection P retraction of the rod will naturally result in the effect of gravity a downward movement of the plate to its rest position. In the case where the orientation of the cutting plane and connection P is different and can not benefit from this gravity effect, the present invention may provide for attaching or articulating the rod to said plate or may provide a means of reminder to bring automatically under the effect of the restoring force plate to its rest position during the retraction of the rod (Figures 1, 2, 3, 4, 5 and 6).
    Thus, in operation (FIGS. 4 and 5), and after having folded or folded, preferably substantially perpendicularly to the cutting and connecting plane P, the downstream strip portion 20b cut from the second strip 2b on the downstream side of said plate , the displacement of the latter downstream will cause with it the downstream movement of said downstream strip portion 20b cut off from the connection area.
    The unwinding machine according to the present invention comprises a cutting and connecting device and two reel-carrying elements each able to carry a reel 3 capable of unrolling a first web 2a supplying the belt feed of the machine or a reel 3b adapted to unroll a second band 2b forming a replacement band.
    According to the present invention, in such a machine, the cutting and connecting device consists of a cutting and connecting device according to the present invention.
    Still in accordance with the present invention, such unwinding machine may further comprise a tape accumulator located downstream of the cutting and connecting device and being able to be filled with a given length of first tape 2a, before stopping. and immobilizing the latter in the cutting and connecting device, and ensuring the continuity of the downstream power supply during connection and immobilization of the first band 2a in said device.
    Such a tape accumulator, not shown, which cap the connection assemblies, for example by a bridge structure, or being located downstream thereof, will be filled before stopping and immobilization of the first band 2a upstream the accumulator, for example of the type described in document FR 2 930 534, makes it possible to ensure the continuity of the power supply during the connection which stops the unwinding of the first band 2a supplying the machine.
    It will be understood that the method according to the present invention which can be implemented from such a machine according to the present invention can also be implemented in a machine, conventional or according to the present invention, having no battery accumulator. bandaged.
    Each reel holder may be located on one side or the other of the cutting and connecting plane P as is the case in the accompanying figures or on the same side as the other reel holder, with rollers of referred to on both sides of the plan.
    Thus, the cutting and connecting method, the cutting and connecting device and the machine comprising the latter, have at least the following advantages or have the effect of allowing: - a better accessibility for the engagement or the threading of the second band in step a /, - a reduced cycle time, - a compactness of the cutting and connecting device, and the unwinding machine equipped with said device, - a reduction of the parts constituting the cutting device and the connection and the unwinding machine, - better accessibility for maintenance, - a maintenance of the first band 2a and the second band 2b possible closer to the cutting line, - connection to the choice with a single piece of adhesive tape applied on one of the opposite sides (or faces) of the two strips to be connected or two pieces of adhesive tape each applied to one of the said sides (or faces) opposite s, whatever the thickness of the one or more pieces of adhesive tape or the like thus applied, - continuity of the supply during connection and immobilization of the first band 2a.
    Of course, the invention is not limited to the embodiment (s) described (s) and shown in the accompanying drawings. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.
    权利要求:
    Claims (20)
    [1" id="c-fr-0001]

    [2" id="c-fr-0002]
    1. A method of cutting and connecting two end-to-end and stop belts in a unwinding machine comprising a cutting and connecting device and two reel-carrying elements, T one of the reel-carrying elements carrying a reel (3 a) capable of unrolling a first web (2a) supplying the web of the machine and the other web carrier carrying a reel (3b) able to unroll a second web (2b) forming a replacement web, each band (2a, 2b) having two opposite longitudinal edges and two opposite sides, said cutting and connecting device comprising two connecting sets (la, Ib) arranged symmetrically with respect to a cutting and connecting plane (P) and being adapted to cut simultaneously and transversely the two strips (2a, 2b) in said plane along a direction and a line of section successively crossing the two longitudinal edges of each strip, perpendicularly or e n bias with respect thereto, each connection assembly comprising a mobile application support (50a, 50b), characterized in that it consists in producing, with the aid of said cutting and connecting device and said machine fed into a strip by said coils, the following steps according to the two phases A / and B /: AJ during the unwinding of the first strip (2a): - a / engaging the second strip (2b) between the connection sets (the , Ib) to place it and maintain it in a preparation position in which said second strip extends, on both sides, upstream and downstream of the cutting line, - b / place, outside connecting assemblies, a piece of adhesive tape or the like on at least one of the application supports (50a, 50b) displaced externally for this purpose, - c / immobilizing the second band in the plane cutting and connecting, B / stopping the unfolding of the prem band (2a) at least in its downstream part: - where appropriate, perform step b / and / or step c / in the case where these are not performed in phase A /, - ά / immobilizing the first strip (2a) in the connection plane (P), - e / cut simultaneously and transversely the two strips (2a, 2b) according to the direction and the cutting line, which has the effect of separating each strip in two web portions, namely, on the one hand, a cut downstream web portion (20a, 20b) located downstream of the cut line and, on the other hand, an upstream web portion (21a, 21b) cut located upstream of the cutting line and connected to its coil (3a, 3b), f / maintain the immobilization, in said plane, of the upstream band portion (21b) cut from the second strip (2b) and the downstream web portion (20a) cut away from the first web (2a); g / disengaging the web portion (20b) from the second web (2b) and upstream band (21a) of the first band (2a) for releasing the connection area comprising the end of the downstream band portion of the first band (2a) and the end of the upstream band portion of the second band (2b) ) to be connected together, - to transfer, in the connection area, the one or two pieces of adhesive tape (6a, 6b), simultaneously or successively, by applying it on one of the sides, or by applying them each on one side, respective ends of the upstream and downstream strip portions (20a, 21b) cut to be joined to effect the connection of the two strips together with one or both pieces of adhesive tape to form a new feeding tape. 2) A method of cutting and connecting, according to claim 1, characterized in that, in step h /, the or each piece of adhesive tape (6a, 6b) is transferred into the connection area in a single movement of translation or rotation from a waiting position located in the corresponding connection assembly to a connection position located in the connection zone in the cutting and connecting plane (P).
    [0003]
    3) A method of cutting and connecting, according to claim 1 or claim 2, characterized in that, in step g / the clearance of the downstream strip portion (20b) cut from the second strip (2b) is realized by a downstream or lateral displacement of said downstream strip portion (20b) cut off.
    [0004]
    4) A method of cutting and connecting, according to any one of claims 1 to 3, characterized in that, in step g /, the clearance of the upstream strip portion (21a) cut from the first strip (2a ) is made by winding the latter around its coil (3 a) and / or by gravity and / or by blowing and / or by any other suitable means of release.
    [0005]
    5) A method of cutting and connecting, according to any one of claims 1 to 4, characterized in that it consists, from a cutting device and connection which each connection assembly (la, Ib) comprises in addition, a tape curvature rectifier system (11a, 11b) having a rectifying contact element (110a, 110b), in step h / and in the case where the first band (2a) and / or the second band ( 2b) are curved with one of their opposite sides having a convex curvature, to successively transfer, in the connection area, the two pieces of adhesive tape (6a, 6b), namely, in a first step, according to the orientation of the convexity of the curvature, the piece of adhesive tape (6a, 6b) carried by the application support (50a, 50b) located on the side of the convex curvature, and straightening the curvature of the first band (2a) and / or the second band (2b), to make it the most flat pos by contacting the opposite opposite side of the cut strip portions 20a and 21b to connect first and second strips (2a, 2b) by means of the other opposite rectifying contact element (110a, 110b). then, possibly, in a second step, the other piece of adhesive tape (6a, 6b) to finalize the connection.
    [0006]
    6) device for cutting and connecting two strips end-to-end and stop for unwinding machine, allowing the implementation of the method according to any one of claims 1 to 5, said machine comprising said cutting device and connecting piece and two reel members each adapted to carry a reel (3a, 3b) capable of unwinding a first strip (2a) providing strip supply to the machine or a second strip (2b) forming a replacement strip , said cutting and connecting device comprising two connection assemblies (la, Ib) arranged symmetrically with respect to a cutting and connecting plane (P), cutting and connecting device characterized in that it comprises a cross-section (4) comprising a cutting member (40) and moving means (41) adapted to move said cutting member in said one direction and a transverse section line substantially perpen diagonally or obliquely with respect to the longitudinal edges, having the effect of simultaneously cutting the two strips (2a, 2b), maintained in the state of immobilization in said plane, passing successively through their respective longitudinal edges, and in that each connecting assembly (1a, 1b), dedicated to one or the other of said strips (2a, 2b), comprises an adhesive application system (5a, 5b) comprising an application support (50a, 50b) ) adapted to hold a piece of adhesive tape (6a, 6b) or the like and moving means for the application (51a, 52a, 51b, 52b) adapted to move the corresponding application support (50a, 50b) from a waiting position located in the corresponding connection assembly to a position apphcation of said piece of adhesive tape, located in said plane and vice versa, a first immobilization system (7a, 7b; 8, 10a, 10b, 10c) adapted to immobilize the first band (2a) in said plane and a second immobilization system (9a, 9b, 10a, 10b, 10c) adapted to hold the second band (2b) in a position of preparation and to immobilize the latter in said plane and a release system (3a, 12a, 12b) making it possible, after cutting, to disengage, by displacement or winding of the strip, the portions of strips (21a, 20b) cut and not intended to be connected to allow the choice of application of one or two pieces of adhesive tape by moving the two opposite application supports.
    [0007]
    7) A cutting and connecting device, according to claim 6, characterized in that the displacement means for the application (51a, 52a, 51b, 52b) are able to move the corresponding application support (50a, 50b). following a single translational movement or rotation from its waiting position to its application position.
    [0008]
    8) Cutting and connecting device, according to claim 7, characterized in that the displacement means for the application (51a, 52a, 51b, 52b) are able to move the corresponding application support (50a, 50b). according to a single rotational movement and in that said moving means for the application consist of a lever system comprising, on the one hand, a driving rod (51a, 51b) on which is fixed the application support (50a, 50b) corresponding and being able to pivot about a first pivot (510a, 510b) parallel to the plane of section and connection (P) and, secondly, an actuator (52a, 52b) capable of acting on said connecting rod to pivot, if any, said actuator consisting of a jack having a rod (520a, 520b) articulated at its end to said connecting rod about a second pivot (521a, 521b) while the body (522a , 522b,) of the cylinder is pivotally mounted around a third pivot (523a, 523b) parallel to said first and second pivots.
    [0009]
    9) cutting and connecting device according to any one of claims 6 to 8, characterized in that each adhesive application system (5a, 5b) further comprises displacement means for the preparation (53a, 54a, 53b, 54b) adapted to move the corresponding application support (50a, 50b) from a preparation position located outside said cutting and connecting device and provided for receiving a piece of adhesive tape (6a, 6b ) to the waiting position in the corresponding connection assembly (la, Ib) and vice versa.
    [0010]
    10) Cutting and connecting device, according to claim 9, characterized in that the displacement means for the preparation (53a, 54a, 53b, 54b) are able to move the corresponding application support (50a, 50b) next a translation movement parallel to the cutting and connecting plane (P) and in that said moving means for the preparation (53a, 54a, 53b, 54b) consist of a slide system comprising a slide (53a, 53b) fixed on the displacement means for the application (51a, 52a, 51b, 52b) extending parallel to the cutting and connecting plane (P) and a movable portion (54a, 54b), forming a slide, fixed on the corresponding application support (50a, 50b), where appropriate the slide (53a, 53b) being fixed to the drive rod (51a, 51b).
    [0011]
    11) cutting device and connection, according to any one of claims 6 to 10, characterized in that the first immobilization system (7a, 7b, 8, 10a, 10b, 10c) of each set comprises first means downstream immobilization device (7a, 7b) able to carry out a holding pressure, preferably a clamping holding pressure, on the downstream part of the first strip (2a) situated downstream from the cutting line and, where appropriate , upstream immobilization means (10a, 10b, 10c) able to carry out a holding pressure, preferably a clamping holding pressure, on the upstream part of the first band (2a) located upstream of the line of cut .
    [0012]
    12) Device according to claim 11, characterized in that the downstream immobilization means (7a, 7b) form first downstream immobilization means and in that it further comprises second downstream immobilization means (8). ) able to carry out additional holding pressure on the first band (2a) downstream of said first downstream immobilization means.
    [0013]
    13) cutting device and connection, according to any one of claims 6 to 12, characterized in that the second immobilization system (9a, 9b, 10a, 10b, 10c) comprises firstly, means for downstream immobilization (9a, 9b) able to carry out a holding pressure, preferably a clamping holding pressure, on the downstream band portion (20b) of the second band (2b), preferably at its free end to maintain the latter in the preparation position and, secondly, upstream immobilization means (10a, 10b, 10c) capable of performing a holding pressure, preferably a holding pressure by clamping, on the part upstream band (21b) of the second band (2b) upstream of the section line for immobilizing said second band (2b) in the cutting and connecting plane (P) and for maintaining its upstream band portion (21b) ) cut in said plane, if necessary said immobilizer means upstream of the second band (2b) also forming the upstream immobilization means of the first band (2a).
    [0014]
    14) Cutting and connecting device according to claim 13, characterized in that the upstream uninviting means (10a, 10b, 10c) of the second immobilization system (9a, 9b, 10a, 10b, 10c) are suitable to perform clamping holding pressure and comprise for this purpose, on the one hand, a movable holding side plate (100a, 100b) having a holding side face (101a, 101b) parallel to the cutting and connecting plane ( P) and an actuator (102a, 102b) adapted to act on said holding lateral plate to move it in translation in a direction perpendicular to said cutting and connecting plane (P) and, secondly, a central holding plate (10c) conunune to the two sets of connection (la, Ib) and comprising two opposite central holding faces (100c, 101c) and each respectively arranged opposite one of the lateral faces of maintenance (101a, 101b) of the one of the lateral plates of maintenance (100a, 100b).
    [0015]
    15) cutting and connecting device according to any one of claims 6 to 14, characterized in that each connection assembly further comprises a straightening system of band curvature (11a, 11b) comprising a straightening member of curvature of strip (110a, 110b) having a contact face (111a, 111b), preferably with a smooth surface, and an actuator (112a, 112b) adapted to act on the latter to move it from a rest position to a working position, substantially in the plane of section and connection (P), with its contact face extending, preferably symmetrically, on either side of the section line, in which it is adapted to come into pressure contact on one side of the cut portions (20a, 21b) to connect first and second strips (2a, 2b).
    [0016]
    16) Cutting and connecting device, according to claim 15, characterized in that the band curvature rectifying element (11a, 11b) also forms a counterpart of the cut and in that it comprises a slot forming a passage for the cutting member (40).
    [0017]
    17) cutting device and connection, according to any one of claims 6 to 16, characterized in that the cutting member (40) consists of a blade having a cutting edge extending transversely to the cutting plane and connection (P), preferably perpendicular to the latter or a rotating blade or a laser beam or a high pressure jet.
    [0018]
    18) Cutting and connecting device, according to any one of claims 6 to 17, characterized in that the release system (3a, 12a, 12b) comprises, on the one hand, means of clearance downstream (12a, 12b) of the downstream web portion (20b) cut from the second web (2b) not intended to be connected, said downstream disengagement means being adapted to disengage said downstream web portion (20b) from the second web (2b) by a driving effect in displacement of the latter downstream and, secondly, upstream clearance means (3a) of the upstream band portion (21a) of the first band (2a) not intended to be connected said upstream disengagement means consisting of the coil (3a) adapted to unroll the upstream strip portion (21a) cut from the first strip (2a) and / or in gravity and / or blowing means and / or in any other means capable of releasing the upstream band portion (21a) of the first band (2a) from the zone of ra ccordement.
    [0019]
    19) Cutting and connecting device, according to claim 18, characterized in that the means of clearance downstream (12a, 12b) of each release system (3a, 12a, 12b) comprise a drive plate in displacement (120a , 120b), preferably a metal sheet, preferably oriented substantially perpendicular to the cutting and connecting plane (P), having two opposite sides, namely a downstream side and an upstream side, displacement guiding means (123a, 123b), preferably in translation or in pivoting from upstream to downstream and reciprocally and actuating means (121a, 122a or 121b, 122b) able to act on said plate to move it downstream, preferably with a translational and / or pivotal movement.
    [0020]
    20) Unwinding machine comprising a cutting and connecting device and two reel members each able to carry a reel (3a) adapted to unroll a first web (2a) providing web feed of the machine or a reel ( 3b) capable of unwinding a second band (2b) forming a replacement band, characterized in that said cutting and connecting device consists of a cutting and connecting device according to any one of claims 6 to 19, in that it comprises a strip accumulator situated downstream of the cutting and connecting device and being capable of being filled with a given length of first strip (2a), before stopping and immobilizing the latter in the device of cutting and connecting, and to ensure the continuity of the downstream power supply during connection and immobilization of the first band (2a) in said device.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3248920B1|2019-01-30|
    EP3248920A1|2017-11-29|
    FR3051781B1|2018-05-11|
    US10486930B2|2019-11-26|
    US20170341894A1|2017-11-30|
    ES2719605T3|2019-07-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2332115A1|1975-11-19|1977-06-17|Agfa Gevaert|END-TO-END ASSEMBLY A NEW BAND TO A ENDING BAND|
    FR2679541A1|1991-07-24|1993-01-29|Monomatic Sa|Device for end-to-end bonding and cutting, for an unrolling machine|
    FR2930534A1|2008-04-24|2009-10-30|Monimatic Soc Par Actions Simp|METHOD AND DEVICE FOR CUTTING AND END-TO-END BONDING FOR DRAWING MACHINE|
    FR2618769B1|1987-07-29|1990-10-12|Monomatic Sa|TAPE UNWINDING MACHINE COMPRISING REEL HOLDERS|
    FR2750968B1|1996-07-12|1999-02-26|Alaimo Andre|CONTINUOUS BANDING DEVICE|US10457512B2|2016-09-19|2019-10-29|New Era Converting Machinery, Inc.|Automatic lapless butt material splice|
    IT201800002504A1|2018-02-08|2019-08-08|Gambini Spa|APPARATUS AND METHOD FOR THE UNWINDING OF COILS AND FOR THE JOINT OF A VEIL BETWEEN TWO COILS.|
    CN111392472B|2020-02-21|2021-01-22|宁波信泰机械有限公司|Automatic film connecting mechanism|
    法律状态:
    2017-03-31| PLFP| Fee payment|Year of fee payment: 2 |
    2017-12-01| PLSC| Search report ready|Effective date: 20171201 |
    2018-04-09| PLFP| Fee payment|Year of fee payment: 3 |
    2019-05-06| PLFP| Fee payment|Year of fee payment: 4 |
    2021-02-12| ST| Notification of lapse|Effective date: 20210105 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1654645|2016-05-24|
    FR1654645A|FR3051781B1|2016-05-24|2016-05-24|METHOD OF CUTTING AND CONNECTING TWO STRIPS TO END AND STOP IN A DEROULER MACHINE, CUTTING AND CONNECTING DEVICE AND MACHINE EQUIPPED WITH SUCH A DEVICE FOR CARRYING OUT SAID METHOD|FR1654645A| FR3051781B1|2016-05-24|2016-05-24|METHOD OF CUTTING AND CONNECTING TWO STRIPS TO END AND STOP IN A DEROULER MACHINE, CUTTING AND CONNECTING DEVICE AND MACHINE EQUIPPED WITH SUCH A DEVICE FOR CARRYING OUT SAID METHOD|
    ES17305574T| ES2719605T3|2016-05-24|2017-05-18|Cutting and joining procedure of two bands in end mode with end and in stop in a winding machine, cutting and joining device and machine equipped with such a device that allow the implementation of this procedure|
    EP17305574.0A| EP3248920B1|2016-05-24|2017-05-18|Method for cutting and connecting two strips end-to-end, halted in an unwinding machine, cutting and connection device and machine provided with such a device allowing said method to be carried out|
    US15/603,825| US10486930B2|2016-05-24|2017-05-24|Method for cutting and connecting two bands end to end, an unrolling machine and a cutting and connecting device|
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