• 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:
    Adjustable lapel folding device for a laminar material box forming machine, said boxes (2) having a base and an even number equal to or greater than four of side walls, at least two of said opposite and inclined side walls (4) being ), said bending device (300) comprising a cam (340) fixed to a shaft (75), a shaft (75) and an actuator (352) operatively connected to said shaft (75) so that the pivot shaft (75) rotates the cam (340), the cam (340) comprising at least two cam members, a first cam member (301) fixed to the rotation shaft (75) and a second cam member ( 306) fixed to the first cam member (301), the second cam member (306) being movable with respect to the first cam member (301) through a cam member adjusting means and thereby being able to regulate the inclination of the cam member (301). The opposite and inclined side walls (4). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2651116A1
    申请号:ES201630988
    申请日:2016-07-20
    公开日:2018-01-24
    发明作者:Telesforo González Olmos
    申请人:Telesforo Gonzalez Maquinaria SL；
    IPC主号:
    专利说明:

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    SOLAPAS POPULATOR DEVICE FOR BOX FORMING MACHINE
    LAMINARY MATERIAL
    Technical field
    The present invention concerns a flap folding device for a sheet forming machine from flat sheets, useful for bending side walls of a box being formed in a mold of the sheet forming machine for tilting said side flaps at an angle less than 90 degrees from the base of said box, causing the projection of the upper mouth of the box on the base of the box to be of a surface smaller than the surface of the base of the box .
    Throughout this description, the term "sheet material" is used to designate corrugated cardboard sheet, corrugated plastic sheet, compact cardboard sheet, compact plastic sheet and the like.
    Background of the invention
    The formation of certain formats of conical boxes is not adequate. Conical box means any box of sheet material from the folding and gluing of die-cut sheets made of a semi-rigid sheet material, said boxes having a base and an even number equal to or greater than four of side walls, at least two of said opposite and inclined side walls. Unsuitable formation affects first anchors and first conjugated openings located at the corners of the conical box and, optionally, affects a few second anchors and second conjugated openings located around half of each of the opposite and conical side walls from the box. The anchors are a protuberance or protrusion located above the upper edge of the box and inserted into the openings located at the base of another box located in an immediately superior position in a situation of stacking boxes. Similarly, the openings are hollows located totally or partially at the base of the box and that receive the anchors of the box immediately below in a stacking situation.
    The inadequate formation of the anchors is produced by a curvature of the opposite and conical side walls, having their maximum deformation around half of said side walls. This deformation in the central area of the side wall causes the
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    inclined side walls manifest a curvature towards the outside of the side wall and may be due to several factors, for example, to an incorrect marking of the cleft between the base and the inclined side wall considered, and which makes the side walls have a excessive resistance to bending.
    Said curvature of the upper edge of the side wall, in the case boxes with said first anchors and openings conjugated in the corners, and being said boxes in a stacking situation, produces that the weight of the boxes stacked and located in a superior position with respect to The case considered does not fall on the entire upper edge of the inclined side walls and also deforms the first anchors located at the corners.
    Said curvature of the upper edge of the side wall, for boxes with said first conjugated anchors and openings and in addition with said second conjugated anchors and second openings, causes them not to fit with the second conjugate anchors and openings of the conical boxes placed immediately superiorly and inferiorly .
    In the two cases explained above, the stacking of the boxes is deficient, which can result in a significant decrease in the product or in the impossibility of stacking said conical boxes.
    To solve the deformation by means of a correct fitting of anchors and openings of stacked boxes, it is possible to regulate the inclination of the wall for two purposes, have control over the inclination of the formed box and also be able to tilt the side wall in excess in order to overcome excessive cleft resistance between side wall and conical box base.
    In addition, it would be desirable to have a regulation on the inclination of a box of a certain height since it provides a number of advantages. First, this indirectly controls the compressive force that appears on the inclined walls associated with the weight that falls on the inclined walls in a stacking situation, said weight being proportional to the number of boxes that are located in a position superior to the considered box. Second, a greater inclination of the side walls allows a greater ventilation and therefore a greater uniformity of the temperature of the products contained by the box in transport and storage situations, especially if they are arranged in temperature controlled enclosures. That is why it must be possible to adjust the degree of inclination provided by the bending device.
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    Document ES 2439142 A1 describes a bender for conical boxes. However, the aforementioned document ES 2439142 A1 has the disadvantage that it does not allow the adjustment of the inclination between the side walls and the base of the box.
    The document with application number P201630787 describes a device based on a tilting pusher that tilts around a swing axis of swingarm supported on a mold of a box-forming machine that cooperates with a male provided with a reciprocating motion perpendicular to a mouth of said mold, said pivoting pivot axis being parallel to a direction perpendicular to said reciprocating movement of the male; a bender support having a first end fixed by means of fixing elements to a structural element; a pusher actuator having a fixed part connected in an articulated manner by means of an articulation shaft to a second end of the bender support and an extendable part connected in an articulated manner to said tilting pusher; wherein the pivot axis of rotation is adjustable in a direction parallel to said reciprocating movement of the male by means of a linear guidance device and a linear guidance locking and unlocking device. Thanks to the adjustment through the tilting axis guide, the device allows adjustment of the angle of inclination between the side walls and the base of the conical box.
    The aforementioned document P201630787 has a number of drawbacks with respect to the solution proposed in this document. First, the cost of manufacturing and assembling the components to form the box bender device is higher, mainly because of the greater number of parts the device has, and also because of the cost of the fluid dynamic actuator. Second, the system requires more maintenance since the lubricant of the specific dynamic fluid actuator stems for the inclined wall bender together with the suspended cardboard particles produces foreign body concentrations on the cylinder stems, which wears away seals of the cylinder and makes the pressure in the cylinders lower, and therefore, leads to incorrect bending and an optional insufficient pressing. The actuator and the pivot shaft of this document is a component installed as standard in box-forming machines since it is used for folding other box flaps of various formats. Third, the aforementioned device is larger. And fourth, the bending movement of the side wall of the aforementioned device is more abrupt, which makes it difficult to break the cleft between the base of the box and the inclined side wall.
    The document EN 0128064 U shows a grease pump where a cam moves the piston of a cylinder by the action on a lever. In GB 2054206 B,
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    It shows a cam in a fuel injection pump. Documents FR 1276264 A, FR 2455511 A1, GB 975796 A, GB 1271397 A and US 3747480 A show devices a cam used in box-forming machines. In all documents the devices comprise a cam that rotates around a rotation shaft, the position of said cam relative to the axis of rotation of the shaft being fixed and, therefore, not adjustable. In other words, it is not possible to adjust the cam so that the profile thereof varies with the cyclic rotation of the rotation shaft, whether it is the tilting or rotating cyclic rotation in the same direction of rotation. Therefore, the aforementioned mechanisms do not have regulation, that is, even when applied to the bending of conical walls they have the disadvantage that they do not allow the assembly of boxes with different inclinations, for example, boxes with a 5-degree inclination, boxes with an inclination of 10 degrees, said inclination being the angular measurement between inclined side walls with respect to the vertical direction. Therefore, the cam mechanisms of the state of the art do not allow to have a regulation on the inclination in a box of inclined opposite side walls.
    Therefore, it would be desirable at first to achieve an improved conical wall bending device, where the cost of manufacturing and assembling the components to form the conical box bending device to be installed in use in the mold of a mounting machine boxes were smaller than the conical benders of the state of the art. In a second point, a system that requires less maintenance of the conical box bender device would be advantageous. This is achieved by using actuators and mechanical transmission mechanisms that are already incorporated in the box-forming machines. In a third point, it is convenient that said device be of reduced dimensions, since the spatial restriction is very critical in the molds of box-forming machines. At a fourth point, the flap folding device improved to break the crease of the side wall with the base of the box more smoothly and progressively, which makes the side wall does not tend to deform once bent, curving outwards from the box.
    Exhibition of the invention
    The present invention contributes to overcoming the above and other inconveniences by providing an adjustable flap folding device for a sheet forming machine from the folding and gluing of die-cut sheets made of a semi-rigid sheet material, said boxes having a base and an even number equal to or greater than four of side walls and at least two of said side walls being opposite and inclined.
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    The box folding device based on an adjustable cam allows the correct assembly of conical boxes and especially the correct installation of the inclined side walls, allowing to regulate the inclination of the side walls with respect to the base of the box.
    The device of the present invention comprises a cam, a pivot shaft and an actuator. The cam is fixed to the turning shaft. The turning shaft is installed in use in the mold of a box-forming machine. The actuator is operatively connected to said rotation shaft so that the rotation shaft rotates the cam. The cam is composed of at least two cam members, a first cam member fixed to said pivot shaft and a second cam member fixed to the first cam member, the second cam member being movable relative to the first cam member through means of adjusting the cam member with which the cam profile is varied.
    The existence of a cam that comprises a first cam member and a second cam member with relative regulation between both members thanks to a means of regulation allows to have control over the angle with which we want to tilt the side walls of the conical box to be formed.
    The cam can be installed on the axis of symmetry perpendicular to the axis of rotation of the pivot shaft, that is, in the middle of the shaft, so that the cam device solves the deformation suffered by the side walls of conical boxes in its central area . The cam with the actuator in the withdrawn position allows the box to be formed into the mold of the box-forming machine. Once the box is placed inside the mold by the action of an oscillating male and once the corners of the box have been formed, the actuator rotates the shaft and causes the cam to move to the bending position of the side wall of the conical box .
    The cam can be installed at the ends of the pivot shaft in order to form the corners of the conical box to be mounted. Once the box is placed inside the mold by the action of an oscillating male and once the corners of the box have been preformed, the actuator rotates the shaft and causes the cam to go to the folded and glued position of the corner of the conical box with in order to tilt the corner of the box.
    In a first embodiment of the device, the cam member regulating means comprise a cam guide and locking and unlocking means of the second cam member relative to the first cam member, crossing the locking and unlocking means perpendicularly to the cam guide. cam in any position of its trajectory.
    Throughout this description, the locking and unlocking means of the device may be composed of screws and conjugate nuts, studs, bolts and nuts
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    conjugate, clamping lever or similar. Also, the cam member regulation means are incorporated in the first cam member or in the second cam member.
    In a first specific embodiment of the first embodiment, the cam guide comprises a groove or tongue and groove projection.
    In a second specific embodiment of the first embodiment, the cam guide comprises an elongated groove or hole.
    Preferably, the cam guide comprises a curved groove practiced on the first cam member, a threaded shaft attached at one end to the second cam member that perpendicularly passes through the curved groove, and a first shaft located at the opposite end of the threaded shaft of such that when the second cam member is positioned with respect to the first cam member the threaded shaft slides along the curved groove, the second cam member swings around said first shaft.
    Alternatively, the cam guide comprises a circular arc groove. In another option, the cam guide comprises a groove with at least two circular arcs of different radius, said circular arcs being tangent to each other. In yet another option, the cam member guide includes a linear or straight groove.
    In a second embodiment of the device, the cam member regulating means comprise at least two holes and locking and unlocking means of the second cam member relative to the first cam member, traversing the locking and unlocking means perpendicularly any of the At least two holes.
    In a first option of the second embodiment of the device, the cam member adjustment means comprise at least two holes, each of said at least two holes being made on the second cam member, located at an equidistant distance from the first axis and the at least two holes being located in such a way that by positioning the second cam member with respect to the first cam member by means of locking and unlocking means in one hole or another the second cam member swings with respect to the first cam member around said first axis.
    In a second option of the second embodiment, the cam member adjusting means comprise at least a first two holes, each of said at least two holes being made on the second cam member, at least two holes being made on the first cam member, and a means
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    of locking and unlocking, the position of the at least two holes being in relation to the at least second holes such that a cam position is obtained by blocking the second cam member by means of locking and unlocking means in a first hole and in a second hole and a second cam position is obtained by blocking the second cam member by means of locking and unlocking means in another first hole and in another second hole.
    In an alternative embodiment of the first and second embodiments, the first axis is adjustable along a second groove made on the first cam member and positioned at the opposite end of the groove of the first cam member.
    Optionally to any of the embodiments discussed above, the cam also has a second first cam member, such that the second cam member has on each side a first cam member, with the first cam member being fixed to the spinning tree.
    Also optionally to any of the above embodiments, the device further comprises a first plate that swings around a second axis, said second axis being parallel to the axis of rotation of the rotation shaft, and said plate tilting between a first retracted position and a second interference position, a second plate where said second axis is housed, said second plate being fixed to the mold of the machine formed of boxes, such that first plate, second axis and second plate form a hinged mechanism, and said said first recovery media plate to force the rocker plate from its interference position to its retracted position. The recovery means can be chosen from a tension coil spring or a dynamic fluid cylinder, among other options.
    Likewise and optionally to the option of the previous paragraph, the device comprises an auxiliary support to which the recovery element is fixed and which is composed of an inert bender, said inert bender being in turn composed of a first section perpendicular to the direction of oscillation of the male, a second curved section and a third section of bender parallel to the direction of oscillation of the male.
    Optionally to the embodiment of the preceding paragraph, the device comprises an auxiliary support that is fixed to the mold of a box-forming machine and that has a C-shaped geometry, with a lower arm perpendicular to the direction of oscillation of the male and connected to the box-forming machine at one end and an intermediate arm at the other end, an intermediate arm parallel to the direction of oscillation of the
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    male connected to the lower arm at one end and the upper arm at the other end, and an upper arm perpendicular to the direction of oscillation of the male and connected to the intermediate arm at one end and the inert bender at the other end.
    Optionally to the realization of the preceding paragraph, between the intermediate arm and the lower arm a first flange system is arranged such that the intermediate arm is guided linearly by said first flange system in a direction parallel to the direction of oscillation of the male , and therefore, gives the inert bender height adjustment.
    Optionally, a second flange system is arranged between the intermediate arm and the upper arm in such a way that the upper arm is guided linearly by said second flange system in a direction parallel to the oscillation direction of the male, and therefore, confers on the inert bender adjustment to the inside or outside of the mold.
    Optionally, in any of the embodiments described above, the first cam member is fixed to the pivot shaft either by means of fixing means or because the cam member is machined on the pivot shaft.
    The actuator may comprise a dynamic fluid cylinder that tilts the pivot shaft between a first position in which the cam is in the retracted position and a second position in which the cam is in the tightening position. Optionally, power transmission means are installed between the pivot shaft and the actuator. The power transmission means installed between the dynamic fluid cylinder and pivot shaft comprise an actuator support attached to the box forming machine, the rod of said cylinder having a rack arranged perpendicularly to the axis of rotation of the rotation shaft, said shaft being rack guided vertically by at least one crazy wheel, and transmitting said rack the power to a pinion coupled in the shaft where the cam is located.
    In an alternative embodiment, the actuator comprises a conventional electric motor or a servomotor coupled to the rotation shaft that rotates the rotation shaft.
    In any of the previous embodiments, the profile of the second cam member may have at least one curved section.
    Brief description of the drawings
    To complement the description that is being made of the object of the invention and to help a better understanding of the characteristics that distinguish it, it is accompanied in the
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    This descriptive report, as an integral part thereof, of a set of drawings, in which the following has been represented by way of illustration and not limitation:
    Fig. 1 is a top perspective view of the folding device according to an embodiment of the present invention, placed in a mold of a box-forming machine.
    Fig. 2 shows an exploded isometric view of Fig. 1.
    Fig. 3 shows a front top perspective view of a corner of a mold of a box forming machine, a device of the present embodiment located in the middle of the pivot shaft and a conical box located in said corner.
    Fig. 4 shows an enlarged view of detail II of Fig. 3 where only the conical box is shown for clarity.
    Fig. 5 shows a rear top perspective view of a corner of a mold of a box-forming machine, the device of the present embodiment located in the middle of the turning shaft and a conical box located in said corner.
    Fig. 6 shows a front top perspective view of the device of the present invention placed in a mold of a box-forming machine, where an actuator embodiment is shown together with the power transmission mechanism.
    Fig. 7 shows a side view of Fig. 6.
    Fig. 8 shows a front and exploded top perspective view of an embodiment of the device of the present invention.
    Fig. 9 shows a top perspective view of a plurality of embodiments of the first cam member.
    Fig. 10 shows a side view of the device of the present invention with a regulating position that makes the cam eccentricity maximum. For a better visualization the associated actuator is not shown. Fig. 10A shows the device in a retracted position and Fig. 10B shows the device in an interference position with the box to be mounted.
    Fig. 11 shows a side view of the device of the present invention with a regulating position that makes the eccentricity of the cam an intermediate value between the maximum value and the minimum value. For a better visualization the associated actuator is not shown.
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    Fig. 11A shows the device in a retracted position and Fig. 11B shows the device in an interference position with the box to be mounted.
    Fig. 12 shows a side view of the device of the present invention with a regulating position that makes the cam eccentricity minimal. For a better visualization the associated actuator is not shown. Fig. 12A shows the device in retracted position and Fig. 12B shows the device in interference position with the box to be mounted.
    Detailed description of some embodiments
    Figs. 1 and 2 show the folding device of the present invention 300 located in the middle of the pivot shaft 75 of a mold 1000 of a sheet forming machine according to an embodiment of the present invention, which is adapted to form , among others, the box format shown in Figs. 3 to 5.
    The box shown in Figs. 3 to 5 is formed from a single die-cut sheet of sheet material and comprises a rectangular base B, two opposite short side walls 4 connected to the base B and two long side walls 3 opposite connected to the base B, as well as corners 5. In the box of Figs. 3 to 5 the two short side walls 4 are inclined at a certain angle less than 90 degrees with respect to the base B while the two long side walls are perpendicular to the base B of the conical box 2. In Fig. 4 it is shown in detail the first anchor 12 and conjugate opening 13 located in the corner of the box 5. In Fig. 3 the second anchor 14 located in the middle of the short side wall 4 and its conjugate opening 15 are shown.
    In Figs. 1 to 3 and 5 the different devices that participate in the formation of the conical box 2 of Figs. 3 and 4 and a possible position of the bender device 300 object of the present invention with respect to the rest of the mold elements 1000.
    A possible formation sequence of the conical box 2 of Figs. 3 and 4 in mold 1000 of a box forming machine. The plate is positioned in the upper mouth of the mold 1000. Fig. 1 shows that said mold has four mold forming corners 1 that coincide with the corners 5 of the conical box 2 to be assembled. The plate is introduced into the mold 1000 by the oscillating and relative movement between a male (not shown) and the mold 1000. First, the flap folding devices called flap lifters 700 are responsible for separating the die cut from two adjacent flaps located in corners 5 of the
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    plate 2. In this case, the edge of the flap containing two flap portions 6 and 7 with respect to the edge of the long side wall 3. Optionally, the male (not shown), with its relative movement of introduction towards the mold , serves as a top stopper for the iron in this operation. Afterwards, the male continues to introduce the plate and the inert flap benders of the long side 600 and the inert flap benders of the short side 800 depending on the relative height between them and their radii of curvature make the long walls 3 or slats remain on the outside of the box 2 and the short walls 4 on the inside of the box 2. Next, the male introduces the iron in the position of maximum insertion into the mold 1000. At this moment, the walls of the long side 3 and the Short side walls 4 are already essentially perpendicular to the base and the corners 5 pending to form. Then, the conical bender 500 and the trigger bender 100 form the corners 5 of the conical box 2. Next, the long-wall stick benders 400 are activated and positioned in interference position with the upper edge of the conical box. Later, the conical benders 500 act well with the male inside the box or with the male outside the box to confer an inclination of the short walls 4 into the box, the angle formed by the base B and the wall Short side 3 less than 90 degrees. Next, the long side wall stick benders 400 are deactivated. It should be mentioned that the stops 404 prevent the box from rising up undesirably when the male is removed and once the corner columns of the box 5 are formed.
    Focusing on the bender device 300 of the present invention, Figs. 3 and 5 show a front and rear top perspective view of a box-forming corner 1 of a mold of a box-forming machine, an embodiment of the device of the present invention 300 located in the middle of the pivot shaft 75 and a box Conical 2 located in the mold 1000 of the box-forming machine.
    The bender device of the present invention comprises a cam 340 fixed to a rotation shaft 75, a rotation shaft 75 and an actuator 352 operatively connected to said rotation shaft 75 so that the rotation shaft 75 rotates cam 340, wherein said cam 340 is composed of at least two cam members, a first cam member 301 fixed to the pivot shaft 75 and a second cam member 306 fixed to the first cam member 301, the second cam member 306 being movable relative to the First cam member 301 through cam member adjustment means.
    Figs. 1 to 3, 5-8 and 10 to 12 show the cam member adjustment means, comprising a cam member guide 302 and locking and unlocking means 307
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    of the second cam member 306 with respect to the first cam member 301, crossing the locking and unlocking means 307 and 308 perpendicularly the cam guide 302 in any position of its path.
    Fig. 8 shows an exploded view of the device of the present invention, where it is shown that the locking and unlocking means comprise in a threaded shaft 307 fixed to the second cam member 306 and its conjugate nut 308 to block the second member of cam to first cam member 301.
    In a specific embodiment of the first embodiment, the cam guide comprises an elongated groove or hole.
    In a first concrete example of specific embodiment of the first embodiment is shown in Figs. 8 and 9A, the cam guide comprises a curved groove 302 made on the first cam member 301, a threaded shaft 307 attached at one end to the second cam member 306 that passes perpendicularly the curved groove 302, and a first shaft materialized in a screw 309 located at the opposite end of the threaded shaft 307 such that when positioning the second cam member 306 with respect to the first cam member 301 the threaded shaft 307 slides along the curved groove 302 of Fig. 9A, by tilting the second cam member 306 around the screw 309.
    A second specific example of a specific embodiment of the first embodiment is shown in Fig. 9C, wherein the cam guide includes a linear or straight groove 302.
    Figs. 9B and 9D show a second embodiment of the bender device 300 through the modification of the first cam member 301, wherein the cam member adjustment means comprises at least two holes 304 and locking and unlocking means 307 of the second member of cam 306 with respect to the first cam member 301, through locking and unlocking means 307 perpendicularly any of the at least two holes 304.
    Fig. 9B shows a first specific embodiment of the second embodiment of the bender device 300 of the present invention, wherein the cam member adjusting means comprise three holes 304, and each of the three holes 304 is practiced on the second cam member 306, located at the same distance from the first shaft 309 and the three holes 304 being positioned such that by positioning the second cam member 306 with respect to the first cam member 301 by means of locking and unlocking means in a hole 304 or other hole 304 the second cam member 306 swings relative to the first cam member 301 about said first axis 309.
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    Fig. 9D shows a second specific embodiment of the second embodiment of the bender device 300 of the present invention, in which the cam member adjustment means comprise two first holes 304, each of the first two holes 304 also being made on the second cam member 306, about two second holes 318 made on the first cam member 318, and locking and unlocking means 307 and 308, the position of two first holes 304 being in relation to the two second holes 318 such that a cam position 340 is obtained by locking the second cam member 306 by means of locking and unlocking means 307 and 308 in a first hole 304 and in a second hole 318 and a second cam position 340 is obtained by locking the second member of cam 306 by means of locking and unlocking means 307 and 308 in another first hole 304 and in another second hole 318.
    A third alternative embodiment of both the first and second embodiments is shown in Fig. 9C, wherein the first shaft 309 embodied in a screw in Fig. 8 is adjustable along a second groove 319 made on the first member of cam 301 and disposed at the opposite end of the groove 302 of the first cam member 301.
    Optionally to any of the first, second and third embodiments discussed above, cam 340 also has a second first cam member 301, such that the second cam member 306 has on each side a first cam member 301 , both first cam member 301 being fixed to the rotation shaft 75. Said feature is shown in Figs. 5 to 6 and 8.
    Also optionally to any of the above embodiments, in Figs. 6 to 8 and 10 to 12 it is shown that the bender device 300 further comprises a first plate 311 that swings around a second axis 315, said second axis 315 being parallel to the pivot shaft 75, and said plate 311 tilting between a position retracted as shown in Fig. 10A, 11A and 12A and an interference position due to cam thrust 340 as shown in Figs. 10B, 11B and 12B, a second plate 313 where said second axis 315 is housed, said second plate 313 being fixed to the mold 1000 of the machine formed of boxes, such that first plate 311, second axis 315 and second plate 315 they form a hinged mechanism, and said first plate having a tension spring 328 for forcing the tilting plate 311 from its interference position to its retracted position.
    Likewise and optionally to the embodiments described above, Figs. 1 to 3, 5 to 8 and 10 to 12 show that the bender device 300 further comprises an auxiliary support 320 to which the tension spring 328 is fixed and which is composed of an inert bender 336,
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    said inert bender 336 being composed of a first section 333 perpendicular to a Z direction parallel to the oscillation movement of the male, a second curved section 334 and a third section 335 of a bender parallel to a Z direction parallel to the oscillation movement of the male.
    In Fig. 6 it is shown that the auxiliary support 320 is fixed to the mold 1000 of a box-forming machine, has a C-shaped geometry, with a lower arm 322 perpendicular to the Z direction of oscillation of the male and connected to the box-forming machine at one end and an intermediate arm 326 at the other end, an intermediate arm 326 parallel to the swing direction Z of the male, connected to the lower arm 322 at one end and the upper arm 329 at the other end, and an upper arm 329 perpendicular to the swing direction Z of the male and connected to the intermediate arm 326 at one end and the inert bender 336 at the other end. In the embodiment shown in Fig. 6 between the intermediate arm 326 and the lower arm 322 a first flange system 325 is arranged such that the intermediate arm 326 is guided linearly by said first flange system 325 in the Z direction of oscillation of the male, and therefore, gives the inert bender regulation in the Z direction of oscillation of the male. Also in Fig. 6 we see that between the intermediate arm 326 and the upper arm 329 a second flange system 330 is arranged such that the upper arm 329 is guided linearly by said second flange system 329 in the oscillating direction Z of the male, and therefore, gives the inert bender 336 regulation towards the inside or outside of the mold 1000.
    In Figs. 1, 6 and 7 it is shown that power transmission means are installed between the shaft 75 and the actuator 352. The actuator in Figs. 6 and 7 consists of a dynamic fluid cylinder 352 that tilts the pivot shaft 75 between a first position in which the cam 340 is in the retracted position (Figs. 10A, 11A, 12A) and a second position in which the cam is it is in the folded position (Figs. 10B, 11B, 12B). The power transmission means installed between the dynamic fluid cylinder 352 and pivot shaft 75 comprise an actuator support 351 attached to the mold of the box-forming machine, the rod of said cylinder 352 having a rack 353 arranged perpendicularly to the axis of rotation. of the rotation shaft 75, said rack 353 being guided vertically by two idler wheels 354, and said rack 354 transmitting the power to a pinion 355 coupled in the rotation shaft 75 where the cam 340 is installed.
    In Fig. 7 it is shown that the option illustrated the profile of the second cam member 306 consists of a profile of variable curvature, that is, with curved sections of profile whose radii vary with the angle rotated by the pivot shaft 75.
    Figs. 10 to 12 show the operation of the device of the present invention.
    Fig. 10 shows a side view of the device of the present invention 300 where the actuator 352 is not shown and with a regulation position that makes the eccentricity of the cam 340 maximum, Fig. 11 shows a regulation for a intermediate cam eccentricity 5 340 between the maximum eccentricity and the minimum eccentricity and Fig. 12 shows a regulation for a cam cam eccentricity 340 minimum. Therefore, the regulation of Fig. 10 inclines the side walls 4 of conical boxes 2 more than the regulation of Fig. 11 and, in turn, the regulation of Fig. 11 inclines the side walls 4 of conical boxes more 2 compared to the regulation shown in Fig. 12. In other words, the angle 10 formed between the base B of the box 2 and the conical side walls 4 by the cam 340 regulated in Fig. 10 is smaller than that formed by the cam 340 regulated in Fig. 11. Also, the angle formed between the base B of the box 2 and the conical side walls 4 by the cam 340 regulated in Fig. 11 is smaller than that formed by the cam 340 regulated in Fig. 12.
    The scope of the present invention is defined in the appended claims.
    权利要求:
    Claims (29)
    [1]
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    1. - Adjustable flap folding device for a laminating box forming machine from the folding and gluing of die-cut sheets made of a semi-rigid sheet material, said boxes having a base and an even number equal to or greater than four walls lateral, at least two of said side walls being opposite and inclined, said bending device (300) comprising a cam (340) fixed to a pivot shaft (75), a pivot shaft (75) and an actuator (352) operatively connected to said pivot shaft (75) so that the pivot shaft (75) rotates the cam (340), characterized in that said cam (340) is composed of at least two cam members, a first cam member ( 301) fixed to the pivot shaft (75) and a second cam member (306) fixed to the first cam member (301), the second cam member (306) being movable relative to the first cam member (301) through of cam member adjustment means connecting the First cam member (301) with the second cam member (306).
    [2]
    2. - Adjustable cam bender device for sheet forming machine according to claim 1, characterized in that the cam member adjustment means comprise a cam member guide (302) and locking and unlocking means ( 307) of the second cam member (306) with respect to the first cam member (301), through the locking and unlocking means (307, 308) perpendicularly the cam guide (302).
    [3]
    3. - Adjustable cam bender device for sheet forming machine according to claim 1, characterized in that the cam member adjustment means comprise at least two holes (304) and locking and unlocking means (307) of the second cam member (306) with respect to the first cam member (301), through the locking and unlocking means (307, 308) perpendicularly any of the at least two holes (304).
    [4]
    4. - Adjustable cam bender device for sheet forming machine according to claim 1 or 2, characterized in that the cam member guide comprises a groove or tongue and groove projection.
    [5]
    5. - Adjustable cam bender device for sheet forming machine according to claim 1 or 2, characterized in that the cam member guide comprises an elongated slot or hole (302).
    [6]
    6. - Adjustable cam bender device for sheet forming machine according to any of claims 2, 3, 4 or 5, characterized in that said
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    Locking and unlocking means comprise screws (307) and conjugate nuts (308), stud and conjugate nut, clamping lever, handle or the like.
    [7]
    7. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the cam member adjustment means are incorporated in the first cam member (301).
    [8]
    8. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the cam member adjustment means are incorporated in the second cam member (306).
    [9]
    9. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the cam member guide comprises a curved groove (302) made on the first cam member (301), a threaded shaft (307) attached at one end to the second cam member (306) that perpendicularly crosses the curved groove (302), and a first shaft (309) located at the opposite end of the threaded shaft (307) such that at positioning the second cam member (306) with respect to the first cam member (301) the threaded shaft (307) slides along the curved groove (302), the second cam member (306) tilting around the first tilting axis (309).
    [10]
    10. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims, characterized in that the cam member guide comprises a circular arc groove (302).
    [11]
    11. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims, characterized in that said cam member guide comprises a groove with at least two circular arcs of different radius, said tangent circular arcs being each.
    [12]
    12. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims, characterized in that the cam member guide (302) comprises a linear groove.
    [13]
    13. - Adjustable cam bender device for sheet forming machine according to any of claims 1, 2, 3, 6, 7 or 8, characterized in that said cam member adjustment means comprise at least two holes ( 304),
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    each of said at least two holes (304) being practiced on any cam member, located at an equidistant distance from the first axis (309) and the at least two holes (304) being located such that when positioning the second member of cam (306) with respect to the first cam member (301) by means of locking and unlocking means (307, 308) in one hole or another the second cam member (306) swings with respect to the first cam member (301) around said first axis (309).
    [14]
    14. - Adjustable cam bender device for sheet forming machine according to any of claims 1, 2, 3, 6 or 8, characterized in that said cam member adjustment means comprise at least a first two holes ( 304), each of said at least two first holes (304) being made on the second cam member (306), at least two second holes
    (318) practiced on the first cam member (301), and locking and unlocking means (307, 308), the position of the at least first two holes (304) being relative to the at least second holes (318) such that a cam position (340) is obtained by blocking the second cam member (306) by means of locking and unlocking means (307,308) in a first hole (304) and in a second hole (318) and is obtained a second cam position (340) by locking the second cam member (306) by means of locking and unlocking means (307, 308) in another first hole (304) and in another second hole (318).
    [15]
    15. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims, characterized in that the first cam member (301) or the second cam member (306) comprises a second groove
    (319) along which the shaft (305) is positioned, the second groove (319) being disposed at the opposite end of the groove (302) of the first cam member (301).
    [16]
    16. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the cam (340) further comprises a second first cam member (301), such that the second member of Cam (306) has on each of its sides a first cam member (301), both first cam member (301) being fixed to the pivot shaft (75) and the second cam member (306) fixed to first two cam members (301).
    [17]
    17. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that it comprises a first plate (311) that swings around a second axis (315), said second axis (315) ) parallel to the pivot shaft (75) and tilting said first plate
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    (311) between a first retracted position and a second interference position due to the thrust of the cam (340) on either the inclined side wall (4) or the corner (5) of the box (2), a second plate ( 313) where said second axis (315) is housed, said second plate (311) being fixed to the mold (1000) of the machine formed of boxes, such that the first plate (311), the second axis (315) and the second plate (313) forms a hinged mechanism, and said first plate (311) having recovery means (328) for forcing the tilting plate (311) from its interference position to its retracted position.
    [18]
    18. - Adjustable cam bender device for sheet forming machine according to claim 17, characterized in that it also comprises an auxiliary support (320) to which the recovery element (328) is fixed and which is composed of a bender inert (336), said inert bender (336) composed of a first section (333) perpendicular to the direction of oscillation of the male, a second section (334) curved to the direction of oscillation of the male and a third section (335) of bender parallel to the direction of oscillation of the male.
    [19]
    19. - Adjustable cam bender device for sheet forming machine according to claim 18, characterized in that said auxiliary support (320) is fixed to the mold of a box mounting machine, has a C-shaped geometry, and it comprises a lower arm (322) perpendicular to the direction of oscillation of the male and connected to the box-forming machine at one end and an intermediate arm (326) at the other end, an intermediate arm (326) parallel to the direction of oscillation of the male connected to the lower arm (322) at one end and to the upper arm (329) at the other end, and an upper arm (329) perpendicular to the direction of oscillation of the male and connected to the intermediate arm (326) by one end and to the inert bender (336) at the other end.
    [20]
    20. - Adjustable cam bender device for sheet forming machine according to claim 19, characterized in that the auxiliary support (320) comprises a first flange system (325) positioned between the intermediate arm (326) and the arm lower (322), said first flange system (325) linearly guiding the intermediate arm (326) and the inert bender (336) in the direction of oscillation of the male.
    [21]
    21. - Adjustable cam bender device for sheet forming machine according to claim 19 or 20, characterized in that the auxiliary support (320) comprises a second flange system (330) positioned between the intermediate arm (326) and the upper arm (329), linearly guiding said second flange system (325) the arm
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    intermediate (326) and the inert bender (336) in the direction perpendicular to the direction of oscillation of the male and the axis of rotation of the rotation shaft (75).
    [22]
    22. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the cam (340) is installed in the axis of symmetry perpendicular to the axis of rotation of the rotation shaft (75) and coincident with the central area of the side wall (4) to tilt from the conical box (2).
    [23]
    23. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the cam (340) is installed at the ends of the pivot shaft (75) and coincides with the corners (5) of the conical box (2) to form.
    [24]
    24. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the first cam member (301) is fixed to the pivot shaft (75) by comprising fixing means (306) .
    [25]
    25. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the first cam member (301) is fixed to the pivot shaft (75), the first cam member (301) being ) machining on the pivot shaft (75).
    [26]
    26. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that it comprises power transmission means between the pivot shaft (75) and the actuator (352).
    [27]
    27. - Adjustable cam bender device for sheet forming machine according to any of the preceding claims characterized in that the actuator (352) comprises a dynamic fluid cylinder (352), said dynamic fluid cylinder (352) tilting by the action of the shaft of rotation (75) between a first position in which the cam (340) is in a retracted position and a position in which the cam (340) is in the bent position of side wall (4) or corner (5) of conical box (2) maximum.
    [28]
    28. - Adjustable cam bender device for sheet forming machine according to claim 26 or 27, characterized in that the power transmission means comprise an actuator support (351) attached to the box forming machine,
    a dynamic fluid cylinder (352), the rod of said cylinder (352b) having a rack (353) coupled perpendicular to the axis of rotation of the shaft (75), said rack (353) being guided vertically by at least one wheel crazy (354), and transmitting said rack (353) the power to a pinion (355) coupled in the 5-turn shaft (75) where the cam (340) is located.
    [29]
    29.- Adjustable cam bender device for sheet forming machine according to any one of claims 1 to 26 characterized in that the actuator (352) comprises a conventional electric motor or a servo motor coupled to the turning shaft (75) which makes turn the pivot shaft (75).
    10 30.- Adjustable cam bender device for material box forming machine
    sheet according to any of the preceding claims characterized in that the profile of the second cam member (306) has at least one curved section.
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    同族专利:
    公开号 | 公开日
    ES2651116B1|2018-10-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB653251A|1943-05-19|1951-05-09|Georges Marguerat|Automatic press for the final shaping of objects of moulded cardboard|
    GB884328A|1958-10-28|1961-12-13|Ahlen & Akerlund Forpakning Ab|Improvements relating to box-folding mechanisms|
    GB975796A|1961-12-01|1964-11-18|Atlas General Ind Inc|Drive mechanism for the plunger of a plunger-and-die type folding box machine|
    GB1271397A|1968-08-02|1972-04-19|Kliklok Corp|Improvements in plunger and die devices for interlocking folding box walls|
    ES2343771A1|2007-12-07|2010-08-09|Telesforo Gonzalez Olmos|Push device for a carton enclosure stacking device |
    ES2439142A1|2012-07-18|2014-01-21|Telésforo GONZÁLEZ OLMOS|Device for the bending and bearing of corners of conical carton boxes |
    ES2536941A1|2013-11-29|2015-05-29|Telesforo Gonzalez Olmos|Conformer set for a machine box forming machine |ES2722351A1|2018-02-09|2019-08-09|Telesforo Gonzalez Maqu Slu|FOLDING DEVICE FOR BOX FORMER MACHINE FOR FOLDING AND PAINTING OF A PLATE OF LAMINARY MATERIAL |
    ES2785773A1|2019-04-03|2020-10-07|Telesforo Gonzalez Maqu Slu|MACHINE FORMING POLYEDRIC BOXES WITH INCLINED WALLS FROM FLAT SHEETS OF LAMINAR MATERIAL |
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201630988A|ES2651116B1|2016-07-20|2016-07-20|SOLAPAS FOLDING DEVICE FOR LAMINARY MATERIAL BOX FORMING MACHINE|ES201630988A| ES2651116B1|2016-07-20|2016-07-20|SOLAPAS FOLDING DEVICE FOR LAMINARY MATERIAL BOX FORMING MACHINE|
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