• 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 invention relates to a longitudinal profile painting machine for door frames, applicable to profiles having a certain longitudinal flexibility, of the type comprising a chain for routing and processing profiles including at least one paint coating station on all sides each of said profiles, and at least one drying station. According to the invention, said chain comprises drive means of said profiles belonging to the group comprising at least one continuous drive conveyor on which said profiles rest by their base, and / or at least one air suspension and transfer system. profiles comprising at least one gripping and driving means cooperating with essentially point portions of said profiles.
    公开号:FR3041888A1
    申请号:FR1659467
    申请日:2016-09-30
    公开日:2017-04-07
    发明作者:Philippe Reminiac
    申请人:Soc Fougeraise De Peinture Ind；
    IPC主号:
    专利说明:

    Paint coating machine and method for PVC profiles 1. Field of the invention
    The present invention relates to techniques and machines for applying a coating on longitudinal profiles used to constitute door frames.
    The coating is typically constituted by one or more layers of paint, intended for example to protect and / or embellish the profiles. The invention is particularly suitable for the industrial application of paint coatings on longitudinal profiles of macromolecular material, such as PVC. The profiles concerned are intended to form frame elements, which will be for example assembled to subsequently form a frame member of the frame or leaf of a door or window, or a frame member of a veranda.
    More specifically, the invention relates to the design of machines for industrially painting such type of longitudinal profiles of PVC or the like, on several faces simultaneously, including if necessary on all their faces, while these profiles generally have a certain longitudinal flexibility. 2. Prior Art
    It has been known for several years, the implementation of longitudinal profiles of wood or aluminum to build a door frame element, such as the frame frame or the window leaf, for example. These longitudinal profiles generally have a significant length relative to their section, typically between four and eight meters long for sections more or less quadrangular not more than 15cm by 15cm, before being cut and assembled.
    The estate has also experienced growing interest in the development of colored door frames. In this context, it has been developed painting techniques implemented prior to the cutting and assembly of aluminum profiles or wood.
    More recently, the use of PVC profiles to form door frames has become widespread and PVC frames now account for more than 50% of the door and window frames market. However, the low choice of colors of these PVC profiles slows the growth of this market. Indeed, the PVC profiles are usually white, since the painting techniques of these profiles are still poorly controlled.
    Specifically, it was observed that the paint techniques initially used for wood or aluminum profiles could not be applied to PVC profiles. New techniques have therefore been developed. It is noted that the PVC profiles are manufactured by plastic extrusion.
    Thus, a first technique is known that consists of coloring the plastic before extrusion by adding dyes in this material. The profiles are manufactured / extruded directly from the desired color.
    A disadvantage of this technique lies in the low resistance of the color over time. Indeed, due to exposure to air and / or weather, the color of the profiles using this technique deteriorates rapidly and has a poor quality appearance.
    Another technique is to co-extrude the profile, that is to say to extrude an additional layer of the desired color on one or more faces of the profile.
    A disadvantage of this technique lies in its low flexibility. More specifically, if the color or shape of the section is different from one section to another, it is necessary to change and / or adjust the extrusion tooling. These successive changes save time and decrease productivity. It is therefore an increase in the cost of manufacturing profiles.
    Yet another known technique is to glue / laminate a colored film on the desired face or faces of the profile. A specific machine is therefore necessary for the application of this film.
    A disadvantage of this technique lies in the need to successively apply the colored film on the different faces of the profile. In addition, if the section is different from one section to another, the specific machine that applies the film must be adjusted to fit this new section. Therefore, this technique is not satisfactory either because it is inflexible and requires significant change / adjustment times that also increase the cost of manufacturing such profiles. Moreover, the cost of such a rolling machine is also very high.
    Finally, another known technique is to assemble the different sections of profiles constituting the frame element, then to manually apply one or more layers or paint coatings. Beforehand, it is necessary to hide / hide the faces of the section that should not be painted.
    Such a technique is relatively laborious and has a very low productivity. This results in a very high manufacturing cost. The automation of such a technique is difficult, and in particular that of the masking step, since there are many forms of section sections.
    Thus, many techniques for coloring PVC profiles, by painting or rolling, have been developed in recent years. However, none of them is satisfactory in terms of productivity, quality, and / or cost of manufacture. There is therefore a need for new solutions that meet all or some of the disadvantages of these different techniques of the prior art. B. Presentation of the invention
    A machine according to the invention implements a plurality of automated workstations, so as to form a line / paint machine for painting PVC profiles, intended to constitute, after cutting and assembly, a frame element , or the like.
    Depending on the embodiments, and the functionalities and processing sought, such a painting machine comprises a chain of routing and processing of the profiles including at least three, and generally four, of the following positions: a supply station allowing to bring and load the profiles to be painted; at least one paint station of the profiles; at least one drying station for drying the painted profiles; an evacuation station to unload and store the painted and dry profiles.
    According to the requirements of the embodiments of the machines according to the invention, these different stations follow one another in a chain of routing and processing of the profiles comprising one or more continuous drive conveyor (s) on which the profiles rest by their base, and are driven by friction due to their own weight.
    According to an advantageous characteristic of the invention, the profile painting machine comprises at least two continuous drive conveyors separated by a separation gap, which constitutes an "overhead" transfer path of said profiles between the two conveyors.
    The machine of the invention provides for placing at least one of said paint coating stations in this separation interval, followed if necessary by at least one drying station.
    Under these conditions, the profiles will be coated with a layer of paint (or any other type of suitable coating), during their transfer in this separation interval, during which they will no longer rest on a conveyor. All their faces will be accessible to project or deposit the coating layer and / or paint.
    Preferably, the separation interval between two continuous drive conveyors only measures a fraction of the length of the profiles. In this way, the section portion which is in the "aerial" position in the separation gap is of sufficiently short length that the natural bending of the profile does not pose any difficulty for the application of the coating or problem mechanical and / or does not cause plastic deformation of the profile.
    Thus, passing continuously in the paint station, all the portions of the profile will be gradually coated as they progress in the separation gap forming transfer path.
    To ensure the displacement of the profiles in the separation interval, the machine comprises a suspension system and overhead transfer profiles that ensures the transfer of said profiles from the first to the second of said drive conveyors, the length of said interval of separation, through said at least one paint station.
    The suspension and air transfer system according to the invention comprises at least one gripping and driving means cooperating with essentially point portions of the profiles.
    In this way, the profiles are not in contact with any surface other than the essentially point portions of the gripping and driving means along the entire length of said separation gap, and are therefore accessible on all their surfaces for the coating operation. .
    Advantageously, the gripping and driving means consists of at least one suspension and driving finger cooperating with essentially point portions of the profiles.
    According to one particular aspect of the invention, said at least one gripping and driving finger of the profiles cooperates with at least one complementary portion of each of said profiles.
    According to another particular aspect of the invention, said at least one suspension and driving finger is removable and configured to cooperate with at least one piercing formed at the front end of the profile.
    Thus, the suspension and driving finger cooperates with a bore, of shape corresponding to the shape of the finger, formed at the front end of the profile to be painted. When the suspension and drive finger is introduced into the drilling of the profile, this finger allows an air transfer of the profile through the various positions of the line. At the end of the line, the finger can be ejected so that the profile is then evacuated.
    According to a particular aspect of the invention, the suspension and driving finger is moved by means of a drive chain conveyor.
    Thus, a first end of the suspension and drive finger is secured to the front end of the profile and a second end of the finger is secured to a drive chain conveyor. When the drive conveyor is in operation, it moves the suspension and drive finger which then moves the profile.
    According to one particular aspect of the invention, the system for suspending and transferring the profiles moves the profiles on a transfer path located between a supply station and a discharge station, so that the profiles pass through the station. paint and drying station.
    Thus, the profile is suspended horizontally as it passes through the paint and drying stations. This aspect makes it possible to paint the four faces of the profile. More generally, the profile can be painted in all its angles since during its passage through the paint station, the profile does not rest on any support that could alter the quality of the paint applied to the profile.
    The horizontal suspension of the profile also ensures optimum quality of the liquid layer of paint applied to the profile avoiding dripping, in particular.
    According to another advantageous characteristic, the profile painting machine according to the invention comprises at least two coating units arranged one after the other in said chain of routing and treatment profiles.
    Several modifications of this principle are possible, in particular: the immediate succession of the coating units one behind the other, in the same separation interval between two conveyors, each profile passing successively during its aerial journey the painting station and the drying station of the first coating unit, then the painting station and the drying station of the second coating unit, an arrangement in which the two coating units are separated from each other by a conveyor conveyor intermediate, each of the coating units inserted between a first and a second conveyor separated by a separation gap and each of said separation intervals accommodating at least one paint coating station and at least one drying station.
    In this way, it is possible to carry out the operation of coating the profiles in at least two stages of application of two successive sub-layers (namely an application of underlayer in each of the two successive coating units), with rapid drying of each of the two sub-layers in each of the corresponding separation intervals, before the profile joins the conveyor located downstream of the separation interval on which it will rest by its base.
    This configuration of the machine and the method of the invention offering the possibility of applying at least two successive coating sub-layers has the advantage of allowing the use in several sub-layers of coating products and / or of paint that would not be likely to dry sufficiently quickly if they were applied in a single thicker layer.
    According to another characteristic of the invention, the chain of routing and processing of the profiles extends along at least two perpendicular branches, so that at least two consecutive stations of this chain extend in two substantially perpendicular directions.
    More specifically, and as described in more detail below, this arrangement of the drive means, in the various configurations made possible by the invention, organizes the perpendicular change of the direction of advancement of the profiles, as required, to exit from the supply station, at the arrival of the evacuation station, and / or between the paint and drying stations, in particular, to optimally manage the spaces and the differential speeds of routing and treatment of the profiles .
    According to another particular aspect of the invention, the drive means of the profile comprise: a first conveyor able to move, in a first direction in advance, at least one profile from said supply station to a first intermediate point the chain of routing and treatment profiles, said first intermediate point being located downstream of said paint station; a second conveyor, able to move, in a second direction of advance, substantially perpendicular to the first direction of advance, at least one profile painted from the first intermediate point to a second intermediate point of the routing and processing chain profiles located downstream of said drying station; and means for receiving said dried painted profiles.
    Thus, this particular arrangement of the various conveyors used in the chain of routing and processing of the profiles ensures a constant speed of the entire line of paint. Indeed, the advantage of orienting perpendicularly two adjacent conveyors, each corresponding to a workstation of the line, allows to quickly release the positions, not important the speed of advance of the conveyor (which corresponds to the cycle time of the post working). This aspect thus makes it possible to prevent the bottleneck effect that is usually encountered when two successive stations have different cycle times.
    According to a particular aspect of the invention, the receiving means comprise a third conveyor able to move, in a third direction of advance, substantially parallel to the first direction of advance, at least one profile from the second intermediate point of the chain of routing and treatment profiles to said evacuation station, so that the first, second and third conveyors form a "U".
    Thus, this U-shaped arrangement of the first, second and third conveyors avoids the neck effect while providing an optimal size of the paint line after implantation in a workshop, for example.
    According to yet another aspect of the invention, the first and third conveyors are of the type of roller conveyors, and the second conveyor is a chain conveyor.
    Thus, the use of roller conveyors makes it possible to simply and at low cost move the profiles through the paint station and at the outlet of the drying station. The implementation of a chain conveyor in the drying station allows the latter to withstand the high temperatures that are applied during the drying of the profiles.
    Typically, according to a preferred embodiment of the conveyor chain of the profiles of the invention, and to summarize the possibilities offered by the invention in its various embodiments, the method according to the invention comprises all or part of the steps of: supply and loading of the profile on a loading station of the routing and processing chain profiles (this loading station preferably ensuring the transfer of the profiles from a first direction of initial storage to a second direction of routing substantially perpendicular to the first direction); providing a gripping means in at least a first end portion of the profile; aerial transfer of the profile (preferably, always said second direction) through at least one of said coating units (including at least one paint and / or drying station), using firstly a first means of suspension cooperating with said gripping means and secondly a second suspension means cooperating with the second end portion of said section, in order to successively proceed to the painting treatment step and / or drying of the four faces the profile; slow drying between two units of coating and / or evacuation of the profile from a station unloading the chain of routing and treatment of the profiles at the end of the treatment step, this slow drying and / or this evacuation preferably performing in a direction substantially perpendicular to the second direction mentioned above); and cutting at least one of said first and second end portions of the profile.
    As another illustration of this arrangement of the conveyor chain with successive perpendicular branches, and to allow a more thorough drying between two consecutive coating units, a possible embodiment for the invention also provides for interpose a slow drying station between two coating units. This slow drying station advantageously extends in a direction perpendicular to that of at least one of the two coating units, and preferably perpendicularly to the two coating units, which are consequently arranged in two parallel directions, but in offset. relative to each other, the distance of this offset corresponding to the length of the slow drying station interposed perpendicularly.
    This configuration including a slow drying station allows the underlayment that has just been deposited to rest longer in a drying environment.
    According to this embodiment, while the drying stations located in the separation intervals between two conveyors allow rapid drying while the portions of profiles that circulate there are in "air" configuration without contact with anything on any of their external surfaces, the slow drying station is a more conventional configuration in which the profiles rest by their base on a drive conveyor, typically a perforated conveyor to minimize the contact surfaces with the base of the profiles to facilitate the slow drying, without compromising the mechanical maintenance of the profiles during this operation.
    To summarize, in this category of embodiments, the machine according to the invention comprises at least one slow moving station including at least one station belonging to a first set comprising a supply station, a slow drying station and a station and at least one rapid moving station belonging to a second set comprising a painting station and a fast drying station, and said at least one slow moving station is located in a direction perpendicular to said at least one station. fast moving. 4. List of Figures Other features and advantages of the invention will emerge more clearly on reading the following description of two embodiments, given as simple illustrative and non-limiting examples, and the appended drawings, among which: Figure 1 is a perspective view of the paint line according to a preferred embodiment of the invention; Figure 2 is a perspective view of the loading station of the paint line of Figure 1; Figure 3 is a perspective view showing the piercing means of the loading station of Figure 2; Figure 4 is a perspective view of the drive means of the paint machine of Figure 1; Figures 5A and 5B are perspective views showing particular features of the drive means of Figure 4; Figure 6 is a perspective view of the unloading station of the paint line of Figure 1; Figure 7 shows the different steps of the operation of the painting machine according to the preferred embodiment of the invention; FIG. 8 represents a second embodiment of the invention in which two coating units are inserted in the same separation interval between an upstream conveyor and a downstream conveyor; FIG. 9 illustrates a third embodiment of the invention in which two coating units are successively arranged in the same profile conveyor chain, the units being separated by an intermediate conveying conveyor and / or slow-drying conveyor arranged in line with the axis of the coating units; FIG. 10 illustrates a fourth embodiment of the invention in which two coating units are arranged successively in the same profile conveyor chain, the units being separated by an intermediate conveying conveyor and / or slow-drying conveyor arranged perpendicular to the axis of the coating units 5. Detailed description of the invention 5.1. Examples of PVC profiles to paint
    The profiles to be painted are PVC longitudinal profiles which are used to form door frames. Their length is generally between 4 and 10m. More particularly, these profiles have a length of about 6.5 m.
    The sectional shape of the sections of the profiles can vary considerably depending on the application / the subsequent use of the profile, depending on whether it is an inner or outer profile, an opening or sliding door, etc.
    More particularly, and regardless of the sectional shape of the sections of the profiles, the section must be able to fit in a square of 15cm side. Preferably, it must be able to register in a square of 10cm of side. Generally, the length to width ratio of the profile is less than 4% (1/25). Preferably, this ratio is of the order of 1.5%. 5.2. Description of a first preferred embodiment of the machine according to the invention
    With reference to FIGS. 1 to 7, according to a preferred embodiment, the painting machine M2 according to the invention consists of: a supply station, or loading station 1; - a painting station 2; - a drying station 3; - an evacuation station, or unloading station 4; and - drive means 6 for moving the profiles P to paint from one station to another.
    The loading station, the paint station, the drying station, the unloading station, and the drive means of the profiles between these different stations, together form a chain of routing and processing of the profiles P.
    As illustrated in Figure 1, which is a perspective view of the paint machine M2, the latter extends substantially rectilinearly. In this embodiment, the painting and drying stations extending one after the other in the same axis. 5.2.1 The loading station
    FIGS. 2 and 3 show the loading station 1 of the routing and processing chain of the P-profiles. This loading station 1 comprises a first frame, or frame, 12 supporting in particular a deposit table 13, a piercing plate. 14 and a first conveyor 61.
    More specifically, the frame 12 is of the welded type. That is to say, it is formed of a plurality of metal beams secured to each other by welding. In this example, it has a length of about 7m and a width of about 30cm.
    The frame 12 thus receives a first conveyor, or loading conveyor, 61. This conveyor is of the free roller conveyor type. In other words, the rollers are not motorized, or driven mechanically by a motor for example, but are simply mounted free to rotate on their axis.
    The loading conveyor 61 extends over the entire length of the frame 12 (along the z axis).
    The loading station 1 comprises a supply tank 17 containing the profiles P to be painted. This tray 17 can be brought closer to the loading station and is able to store, in this example, up to 40 profiles.
    The loading of the profiles on the paint machine is facilitated by the implementation of a deposit table 13 integral with an edge of the frame 12 and extending substantially over half the length of the latter (along the axis z).
    The removal table 13 is an area for storing about ten P profiles. This is a waiting / storage area of the profiles before drilling.
    The frame 12 comprises, at a first end, a piercing plate 14 extending longitudinally (along the z axis) on the upper surface of the frame 12.
    This piercing plate 14 comprises a drill 16 for drilling (along the x axis) the front end of the profile P (also called the first end portion) so as to arrange gripping means on the profile P. More precisely the drill 16 allows to provide a light, or drilling, through the entire section P (along the x axis). It can also be envisaged that the drilling is not through.
    The drill 16 is mounted on a monostable jack for moving the drill 16 during drilling of the P-profile.
    The drilling plate 14 also comprises a pressure roller and a drilling flange (not shown) intended to participate in the drilling of the P-profile. The drilling of the P-profile is done automatically. The drilling flange and the pressure roller allow such automatic drilling. However, it can be envisaged that an operator is present to manually assist the drilling of the front end of the P-profile.
    The pressure roller is arranged facing the drill 16 which extends perpendicularly (along the x-axis) to the loading conveyor 61 on which the profile P. rests. The pressure roller is mounted on a jack which displaces the pressure roller. a rest position, in which the pressure roller is not in contact with the profile P so as to allow the positioning of the profile P in front of the drill and / or the advance of the profile on the load conveyor 61; and a holding position, wherein the pressure roller bears against the profile P so as to prevent movement of the profile P during drilling.
    The drilling flange is situated at the front end of the loading conveyor 61 and makes it possible to position the section P before drilling. It also helps maintain the profile during drilling.
    The drilling flange is mounted on a jack for moving the flange between a rest position, in which the flange is below the highest level of the loading conveyor rollers 61, thereby allowing the profile P to move on the conveyor. loading 61; and a clamping position, in which the flange is above the highest level of the rollers of the loading conveyor 61 so as to lock the P-profile.
    The piercing plate 14 also comprises a pair of guide rollers 15 which are mounted movable in translation on either side of the profile P when the latter rests on the loading conveyor 61.
    Specifically, each of the guide rollers 15 is mounted on a jack for moving the rollers of a rest position, wherein the guide rollers 15 are spaced from the profiles P; and a guide position, in which the guide rollers 15 are in contact with a lateral surface of the profile P so as to guide the latter on the loading conveyor 61. 5.2.2 The paint station and the drying station
    As illustrated in FIG. 1, the painting and drying stations 2 and 3 are positioned one after the other in an adjacent manner.
    The paint station 2, located downstream of the loading station 1, comprises in this embodiment, four guns (not visible) paint for painting the four faces of a quadrangular P profile.
    To do this, each of the spray guns is fixedly mounted on an adjustable base according to the three axes (x, y, z) so as to adapt to the particular sectional shape of each of the profiles P to paint. The paint used in this example is a water-soluble liquid type paint.
    The drying station 3 is implemented immediately after the paint station 2. In other words, the profile P enters the paint station 2 and exits through the drying station 3.
    In a variant, discussed below in connection with FIG. 8, it may be envisaged, in order to optimize the quality of the coating applied to the P profile, to implement two consecutive modules, each consisting of a paint station followed by a drying station. In this embodiment, the first paint station is intended to apply a first thin layer of paint on the faces of the profiles, followed by a first drying station to dry the first layer of paint, then a second station of paint. paint to apply a second layer of paint to the P-profile, and a second drying station to dry this second layer of paint.
    The drying station (s) is (are) advantageously of the infrared (IR) type. 5.2.3 Air Suspension and Overhead Transfer System
    FIGS. 4, 5A and 5B illustrate the air suspension and transfer system 62 of the conveyor and processing chain of the P-profiles. This suspension and air-transfer system 62 comprises gripping and driving means 620, a drive conveyor 623 and a support conveyor 624. Note that the qualifier "air transfer" used in connection with the present invention only means that the profile is suspended, and does not rest by its base on a conveyor. But the meaning of this term "aerial" is specific to the present invention, and may differ from that it may have about other state-of-the-art installations.
    More specifically, the gripping and driving means 620 comprise a first suspension means, or suspension and driving finger, 621, and a second suspension means, or support blade, 622 of the P-profile. 623 is intended to move the suspension and drive finger 621, while the support conveyor 624 is intended to move the support blade 622.
    As illustrated in more detail in FIGS. 5A and 5B, the two conveyors 623, 624 are arranged side by side and extend in the extension of the loading conveyor 61. The structure and operation of these two conveyors are substantially identical.
    These conveyors 623, 624 are conveyors of the type of conveyors chain drive. They therefore comprise a metal chain 6233, 6243 and two drive gears 6232, 6242 each located at one end of the conveyor (only one wheel of each conveyor is visible in the figures).
    At least one of the two drive gears of each conveyor is connected to a motor for driving the wheel in rotation. The rotation of the wheel causes the movement of the drive chain.
    The engine implemented here is a brushless type motor. It is associated with a controller (not shown) that allows precise control of the engine speed and position, in particular.
    The drive conveyor 623 of the suspension and drive finger 621 comprises a carriage 6231 fixedly mounted on the drive chain 6233. This carriage 6231 is adapted to receive, removably, the suspension and drive finger 621. .
    More specifically, the suspension and drive finger 621 is fixedly mounted on a straight rod. This straight rod is then removably mounted to the drive carriage 6231 and extends perpendicularly (along the y axis) to the latter. The rod thus connects the suspension and drive finger 621 to the drive carriage 6231.
    The suspension and drive finger 621 is intended to cooperate with the bore formed on the front end of the section P. This finger thus extends perpendicularly (along the x axis) to the longitudinal axis of the profile P (which extends along the z axis).
    The support conveyor 624 also comprises a carriage 6241 fixedly mounted on the drive chain 6243. The carriage 6241 is secured to the support blade 622 by means of a rectilinear rod extending perpendicularly (along the y axis) to the longitudinal axis of the support conveyor 624.
    Unlike the rod carrying the suspension and drive finger 621, the straight rod carrying the support blade 622 is fixedly mounted on the carriage 6241. The support blade extends parallel (along the x axis) to the finger of 621. The rear of the profile P (also called the second end portion), when leaving the loading conveyor 61 is intended to rest on the support blade 622 so that the profile P does not bend by gravity inconsistent with its routing and processing.
    The air suspension and transfer system 62 of the P-profiles extends from the end of the loading conveyor 61 from the loading station 1 to the end of the unloading conveyor 63 which extends over the entire station. unloading 4.
    Thus, the air suspension and transfer system 62 makes it possible to move the profile P from the loading station 2 to the unloading station 4 by passing through the painting and drying stations 3 of the routing and treatment chain. P profiles
    More specifically, the drive conveyor 623 moves the suspension and drive finger 621, and therefore the front end of the profile P, from the loading station 2 to the unloading station 4.
    The support conveyor moves the rear end of the profile P from the loading station 2 to the exit of the drying station since the rear of the profile P then rests on an unloading conveyor 63. The support blade 622 being fixed mounted on its carriage 6241, the support conveyor 624 moves back to the loading station 1. 5.2.4 The unloading station
    FIG. 6 illustrates the unloading station, or evacuation station, 4 of the routing and processing chain of the P-sections. This unloading station 4 comprises a third frame, or frame, 41 supporting in particular a guide plate 410. a fourth frame, or frame, 42 supporting the unloading conveyor 63, and a fifth frame, or frame, 641 supporting an evacuation conveyor 64 of the P-profiles.
    More specifically, the third frame 41 is of the welded type. It is located immediately at the outlet of the drying station 3. It extends in the extension of the suspension and air transfer system 62, that is to say along the z axis, and has a length of 7m by 30cm width, in this example.
    The frame 41 comprises, on one of its longitudinal edges, a guide plate 410 carrying a pair of guide rollers 411. This plate extends longitudinally parallel to the longitudinal axis of the frame 41 (along the z axis) .
    The guide rollers 411 are mounted movable in translation on either side of the profile P when the latter rests on the unloading conveyor 63.
    Specifically, each of the guide rollers 411 is mounted on a jack for moving the rollers of a rest position, wherein the guide rollers 411 are away from the profiles P; and a guide position, in which the guide rollers 411 are in contact with a lateral surface of the profile P so as to guide the latter on the unloading conveyor 63.
    The third frame 41 also comprises a pressure roller 412 which extends perpendicularly (along the x-axis) to the unloading conveyor 63 on which the P-profile rests. The pressure roller is mounted on a jack enabling the pressure roller 412 to be moved. a rest position, in which the pressure roller 412 is not in contact with the profile P; and a holding position, in which the pressure roller 412 bears against the profile P.
    Thus, the pressure roller 412 and the pair of guide rollers 411 together make it possible to optimize the guiding of the profile P on the third frame 41.
    As illustrated in FIG. 1, a first portion 631 of the unloading conveyor 63 rests on the third frame 41.
    The fourth frame 42 is a mechanically welded frame and extends in the extension of the third frame 41, that is to say along the z axis. It presents, in this example, a length of 4m by 30cm wide.
    The fourth frame carries the second portion 632 of the unloading conveyor 63. In this example, the second portion 632 is about five times longer than the first portion 631 of the unloading conveyor 63.
    The unloading conveyor 63 is a continuous conveyor of the free roller conveyor type, that is to say that the rollers are not driven by a drive system. The implementation of free rollers is permitted because the P profile is moved / driven on the conveyor 63 through the suspension system and air transfer 62, and more precisely by the hanger and drive 621.
    The fourth frame 42 comprises a system for recovering the suspension and drive fingers 621. Indeed, and as described in more detail below, each suspension and drive finger 621 is ejected at the end of the unloading conveyor 63 when the profile P has reached this end.
    The unloading station 4 further comprises a fifth frame 641 which extends parallel and along the fourth frame 42 (along the z axis). In this example, it has a length of 4m by 30cm in width.
    This fifth frame 641 carries a belt conveyor type discharge conveyor 64 comprising four parallel strips extending perpendicularly (along the x axis) to the unloading conveyor 63.
    Thus, when the profile P reaches the end of the unloading conveyor 63 and the suspension and drive finger 621 is ejected, the profile P is moved transversely (along the x axis) on the evacuation conveyor 64, leaving the unloading conveyor 63 free to receive the next P profile.
    The evacuation conveyor 64 is able to receive / store up to ten painted and dry profiles P before these are transferred to a cutting station (not shown), for example. 5.2.5 Operation of the machine according to the invention
    Figure 7 illustrates the different steps of the operation of the painting machine according to the invention.
    First, the profiles P to be painted are supplied (step 201) near the paint machine in a supply bin 17.
    They are then loaded (step 202) one by one on the loading conveyor 61. The loading can be done manually or automatically if suitable means are implemented.
    After loading on the conveyor 61, the front end of the profile P, that is to say the first end portion of the profile P, is pierced (step 203) automatically by the drill 16 using the pressure roller and the drilling flange, so as to arrange gripping means on the P-profile.
    Then the rectilinear rod (step 204) carrying the suspension and drive finger 621 is secured to the drive carriage 6231 of the drive conveyor 623.
    The suspension and drive finger 621 is then introduced (step 205) into the bore formed in the vicinity of the front end of the P-profile.
    The profile is then moved (step 206) through the painting stations 2 and drying 3 to be painted (step 207) and dried (step 208).
    The profile P continues to be moved by the suspension and drive finger 621 while resting on the unloading conveyor 63. When the rear of the profile P leaves the loading conveyor 61, the rear end of the profile is then supported (step 209) by the support blade 622 until reaching the unloading conveyor 63.
    When the P profile reaches the end of the unloading conveyor 63, the hanger and drive finger 621 is ejected and received (step 210) by the finger retrieval system 420.
    The continuous drive conveyor (step 211) will operate until the drive carriage 6231 returns to its original position, i.e., the position in which it is located at the beginning of the drive conveyor 623 and wherein the rectilinear rod is secured.
    The support conveyor 624 reverses (step 212) to return the support blade 622 to its initial position, that is to say the position in which the blade 622 is adapted to receive the rear end of the P profile.
    The profile P is then evacuated (step 213) through the evacuation conveyor 64. A transfer (step 214) of the profile P of the evacuation conveyor 64 to a cutting station (not shown) is then performed.
    Finally, the front end of the section P which is pierced and the rear end of the section P which rested on the support blade 622 are cut (step 215). Indeed, the end of the section resting on the support blade 622 is not painted and is not exploitable. 5.2.6 Other variants of the invention
    FIGS. 8, 9 and 10 show three variants of the profile coating chain corresponding to embodiments of the invention in which several paint and / or drying stations are arranged along the length of the chain. .
    The embodiment of FIG. 8 corresponds to the case where two successive processing units U1 and U2, each comprising a paint station 2 and a drying station 3, are inserted in the same separation interval I between an upstream conveyor C1 and a downstream conveyor C2.
    Advantageously, each of the painting or drying stations is separated from the next station by an AIR compensation lock.
    Typically, for the type of profiles used, the upstream and downstream conveyors Cl, C2 extend over a length of 7 meters, and the separation interval I represents for example a length of 2m, or any other length compatible with the holding mechanical profiles and carrying out the operations of coating and drying.
    In the embodiment of FIG. 9, the two successive coating units U1 and U2 are arranged in line substantially on the same axis of routing of the profiles, and are housed in separation intervals 11; 12 formed between conveyors Cia, C2a; Clb, C2b respectively. These two successive units of coating U1 and U2 each host at least one paint station 2 and a drying station 3.
    In the embodiment of FIG. 9, the second coating unit U '2 is offset from the first coating unit U1, the profiles being in fact conveyed between the two units in a direction transverse to that of the directions transfer within the coating units U1, U2. The transverse routing of the profiles allows them to rest in a slow drying process, without interrupting the speed of operation of the chain. This embodiment is suitable in the case where the first underlayer coating would call a drying complementary to the rapid drying by IR drying stations 3. During their transverse routing, the profiles can also undergo other specific treatments, operations of flipping, etc.
    It is understood that the invention also covers the sub-variants of these various embodiments, and in particular the multiplication and / or mixing of the various arrangements described. 5.2.7 Other aspects and advantages
    The painting machine, according to the various embodiments of the invention described above in connection with the drawings, makes it possible to paint the four faces of a quadrangular PVC profile. Since the profile P to be painted is suspended horizontally as it passes through the paint 2 and drying stations 3, it is possible to paint the profile at 360 °.
    The air suspension and transfer system 62 used in the machine according to the invention makes it possible to move / transfer the profile P through the paint 2 and drying stations 3 without the latter bending or bending. Indeed this machine allows optimal maintenance over the entire length of the profile, so that the latter does not sag, or that the deflection remains compatible with the treatments applied to it. Therefore, such a paint machine is particularly suitable for painting flexible longitudinal profiles, especially PVC.
    Moreover, an advantage of such a machine is to provide an automated PVC profile painting solution which guarantees an optimum quality of the painted profiles.
    The perpendicular disposition of the evacuation conveyor 64 makes it possible to quickly and automatically release the unloading conveyor 63 situated at the outlet of the drying station 3 so that the speed of the entire line / machine is maintained.
    Another advantage of this machine is to provide a solution for painting PVC profiles which is simple to implement, inexpensive, and which can be adapted to all shapes of profile sections.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Machine for painting longitudinal profiles (P) for frames, applicable to profiles (P) having a certain longitudinal flexibility, of the type comprising a chain of routing and treatment of the profiles (P) including at least one coating station of paint (2) on one, two, three or four faces of each of said profiles, at least one drying station (3) and another station selected from a supply station (1) and an evacuation station (4). ), said chain comprises drive means (5) of said profiles (P) belonging to the group comprising at least one continuous drive conveyor (C) on which said profiles (P) rest by their base, and / or at least one system for suspending and transferring air (62) profiles comprising at least one gripping and driving means (621) cooperating with essentially point portions of said profiles (P), and in that the chain of routing and draft The sections extend along at least two perpendicular branches, so that at least two of said stations of said chain are consecutive and extend in two substantially perpendicular directions.
    [2" id="c-fr-0002]
    2. Profile painting machine (P) according to claim 1, characterized in that it comprises at least two continuous drive conveyors (C1, C2) on which said profiles (P) rest by their base, said conveyors Cl , C2 being separated by a separation interval (I), in that each separation interval (I) constitutes a transfer path of said profiles and accommodates at least one of said paint coating stations (2), and in that said air suspension and overhead transfer system (62) ensures the transfer of said profiles from the first (C1) to the second (C2) of said drive conveyors along the length of said separation gap (I) through said at least one paint station, so that said profiles are not in contact with any surface other than those of said at least one gripping and driving means (621) of said suspension and transfer system over the entire length of said in separation time (I).
    [3" id="c-fr-0003]
    3. Profile painting machine (P) according to claim 2, characterized in that the separation gap (I) measures only a fraction of the length of the profiles (P).
    [4" id="c-fr-0004]
    4. Profile painting machine (P) according to any one of claims 2 and 3, characterized in that said separation interval (I) also accommodates at least one drying station (3) downstream of the paint station.
    [5" id="c-fr-0005]
    5. Profile painting machine (P) according to any one of claims 2 to 4, characterized in that it comprises at least two coating units (U1; U2) arranged one after the other in said chain of routing and treatment of the profiles (P), each of said coating units being inserted between a first and a second conveying conveyors (Cia, C2a, Clb, C2b) separated by a separation interval (la; ) and each of said separation intervals (la; Ib) accommodating at least one paint coating station (2) and / or at least one drying station (3).
    [6" id="c-fr-0006]
    6. Profile painting machine (P) according to any one of claims 1 to 5, characterized in that said gripping means and drive (621) of the profiles (P) is finger-shaped cooperating with at least a complementary portion of each of said profiles (P).
    [7" id="c-fr-0007]
    7. Profile painting machine (P) according to claim 6, characterized in that said at least one suspension and driving finger (621) is removable and configured to cooperate with at least one piercing formed at the level of the front end of the profile (P).
    [8" id="c-fr-0008]
    Shape paint machine (P) according to claim 7, characterized in that the suspension and drive finger (621) is moved via a drive chain conveyor (623).
    [9" id="c-fr-0009]
    9. Profile painting machine (P) according to any one of claims 1 to 8, characterized in that it comprises at least one slow moving station including at least one station belonging to a first set comprising a station of supply, a slow drying station and an evacuation station. and at least one fast moving station belonging to a second set comprising a paint station and a fast drying station, and in that said at least one slow moving station is located in a direction perpendicular to said at least one displacement station fast.
    [10" id="c-fr-0010]
    10. A method of painting a longitudinal section (P) via a machine according to any one of claims 1 to 9, characterized in that it comprises at least one of the following steps: supply (201) and loading (202) the profile (P) at a loading station (1) of the routing and processing chain of the profiles; arranging (203) a gripping means in at least a first end portion of the profile (P); aerial transfer (206) of the profile (P) through at least one of said coating units (U1, U2) using firstly a first suspension means (621) cooperating with said gripping means and secondly a second suspension means (622) cooperating with the second end portion of said section, in order to successively proceed to the painting treatment step (207) and / or drying (208) of the four faces the profile (P); slow drying between two units of coating and / or evacuation (213) of the profile (P) from a station for unloading the conveyor and treatment of the profiles at the end of the treatment step; and cutting (215) at least one of said first and second end portions of the profile (P).
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    同族专利:
    公开号 | 公开日
    FR3041888B1|2021-05-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2104584A1|1971-02-01|1972-08-10|Righi E|Plant for painting and drying wooden parts, in particular individual frame parts that have been machined on all sides|
    US3964435A|1975-02-26|1976-06-22|H. C. Price Co.|Apparatus for coating elongated objects of small diameter|
    EP0429147A2|1989-09-20|1991-05-29|MANNESMANN Aktiengesellschaft|Process and device for applying a protective coating onto a steel tube|
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    EP3015175A1|2014-11-03|2016-05-04|Compagnie Plastic Omnium|Device for remote surface preparation of a workpiece|CN108906446A|2018-08-29|2018-11-30|大连事事达数控机械科技有限公司|A kind of mini word paint spraying machine of more spray guns of chain conveyer workbench and its working method|
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    法律状态:
    2017-11-28| PLFP| Fee payment|Year of fee payment: 2 |
    2018-01-12| PLSC| Search report ready|Effective date: 20180112 |
    2018-09-27| PLFP| Fee payment|Year of fee payment: 3 |
    2019-09-26| PLFP| Fee payment|Year of fee payment: 4 |
    2020-09-25| PLFP| Fee payment|Year of fee payment: 5 |
    2021-09-24| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1559365A|FR3041887A1|2015-10-01|2015-10-01|MACHINE AND METHOD FOR COATING PAINT FOR PVC PROFILES|
    FR1659467A|FR3041888B1|2015-10-01|2016-09-30|MACHINE AND PROCESS FOR PAINT COATING FOR PVC PROFILES|FR1659467A| FR3041888B1|2015-10-01|2016-09-30|MACHINE AND PROCESS FOR PAINT COATING FOR PVC PROFILES|
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