Automobile Armrest Spray Glue Edge Wrapping System

Abstract

The present invention provides an automotive armrest spray glue edge wrapping system, which has the following features. It includes: a spray glue device for spraying hot melt glue on the inner surface of the skin; an automotive armrest composite edge wrapping device for pasting the skin with hot melt glue on its inner surface onto the automotive armrest skeleton and performing edge wrapping on the automotive armrest skeleton, including: a support mechanism; a skin fixing device arranged on the support mechanism for fixing the skin; a skeleton fixing device arranged on the support mechanism and above the skin fixing device for fixing the automotive armrest skeleton; a baking device arranged on the support mechanism for melting the hot melt glue layer of the decorative fabric and heating the door panel; and an edge wrapping device for performing edge wrapping on the automotive armrest skeleton. Among them, the skin fixing device has positioning pins matching the positioning holes, and the positioning pins are used to pass through the positioning holes so that the skin is positioned on the profiling mold.

Description

Technical Field

[0001] The present invention relates to the field of machinery, and particularly to a spray - glue edge - wrapping system for vehicle armrests. Background Art

[0002] In the processing of semi - finished vehicle armrests, hot - melt glue needs to be first sprayed on the inner surface of the cut skin to form a hot - melt glue layer, and then the skin with the hot - melt glue layer is pasted on the outer surface of the vehicle armrest skeleton, and the skin at the edge of the vehicle armrest skeleton is turned over and wrapped and pasted on the inner surface of the vehicle armrest skeleton.

[0003] Currently, the spray - glue process in the processing of vehicle semi - finished products is usually completed manually, and the processes of pasting the skin, decorative fabric, etc. and edge - wrapping are completed manually or by automated edge - wrapping equipment. CN108582808A discloses a door panel edge - wrapping device with a pulling member, which is used for pasting decorative fabric and edge - wrapping the door panel skeleton. The fabric fixing structure used when pasting the fabric is fixed by pulling the pulling member and evacuating, and the space occupied by the pulling member is relatively large, which is not conducive to the overall layout of the equipment, and the control process of the pulling member is also relatively complex.

[0004] In addition, the structure of the vehicle armrest is very different from that of the vehicle door panel, and the edge - wrapping requirements are also different. Figure 8 FIG. X is a schematic structural diagram of the vehicle armrest skeleton in the present invention. As shown in FIG. X, the vehicle armrest skeleton 1 includes a transition edge 2 and a non - transition edge 3. Figure 9 is Figure 8 an enlarged schematic view of the transition edge in FIG., as Figure 9 shown, the transition edge 2 becomes narrower from wide in the horizontal direction and gradually decreases in height in the vertical direction, that is, it is S - shaped in both the horizontal and vertical directions. The special structure of this transition edge 2 increases the difficulty of edge - wrapping this part, and the existing edge - wrapping structures cannot edge - wrap it.

[0005] In addition, the skin used for the above - mentioned vehicle armrest processing is a PVC skin, which includes a first skin area and a second skin area connected together. For aesthetics, three stitches extending along the length direction are provided on the first skin area, and a plurality of positioning holes are pre - cut on the entire edge of the entire skin. The positioning holes penetrate the skin, and the plurality of positioning holes are evenly distributed along the edge of the skin. In the prior art, there is no special fixing device for positioning such a skin.

[0006] In summary, there is an urgent need to provide an automated device for spraying glue, fixing, and edge - wrapping the skin of vehicle armrests. Summary of the Invention

[0007] The present invention is made to solve the above-mentioned problem of automatically spraying glue on the skin and the problem of automatically wrapping the skin around the automotive armrest skeleton, and aims to provide an automotive armrest glue spraying and wrapping system.

[0008] The present invention provides an automotive armrest glue spraying and wrapping system, which has the following characteristics. It includes: a glue spraying device for spraying hot melt glue on the inner surface of the skin; an automotive armrest composite wrapping device for pasting the skin with hot melt glue on its inner surface onto the automotive armrest skeleton and wrapping the automotive armrest skeleton, including: a support mechanism; a skin fixing device arranged on the support mechanism for fixing the skin; a skeleton fixing device arranged on the support mechanism and above the skin fixing device for fixing the automotive armrest skeleton; a baking device arranged on the support mechanism for melting the hot melt glue layer of the decorative fabric and heating the door panel; and a wrapping device for wrapping the automotive armrest skeleton. Among them, the skin fixing device includes a fixing frame and a profiling mold, a pneumatic positioning unit, and a vacuum generator fixedly arranged on the fixing frame. The profiling mold has a shape matching the shape of the automotive armrest skeleton for positioning the skin. Multiple through holes are arranged on the profiling mold. The pneumatic positioning unit has positioning pins matching the positioning holes, and the positioning pins are used to pass through the positioning holes so that the skin is positioned on the profiling mold; the vacuum generator is respectively communicated with the multiple through holes for evacuating the through holes to adsorb and tightly hold the skin on the profiling mold.

[0009] In the automotive armrest glue spraying and wrapping system provided by the present invention, it may also have the following characteristics: Among them, the skin includes a first skin area, and a stitch extending along the length direction is arranged on the first skin area. The profiling mold includes a first mold area corresponding to the first skin area. The multiple through holes are arranged in through hole groups. The multiple through holes in the through hole group arranged on the first mold area are linearly distributed along the length direction of the profiling mold. The multiple through hole groups are arranged in rows or columns. No through holes are arranged on the part of the first mold area corresponding to the stitch.

[0010] In the automotive armrest glue spraying and wrapping system provided by the present invention, it may also have the following characteristics: Among them, the pneumatic positioning unit also has a cylinder, and the cylinder drives the positioning pin to move down or up.

[0011] In the automotive armrest glue spraying and wrapping system provided by the present invention, it may also have the following characteristics: Among them, through holes are also arranged on the profiling mold, and the positioning pins correspond to the through holes. After the cylinder drives the positioning pins to rise, the positioning pins pass through and penetrate the through holes. The part of the positioning pins penetrating the through holes is used to position the skin. After the cylinder drives the positioning pins to move down, the top of the positioning pins is lower than the top of the through holes.

[0012] In the automotive armrest spray-bonding edge-wrapping system provided by the present invention, it may further have the following features: Among them, the automotive armrest skeleton includes a transition edge, and the edge-wrapping device includes an edge-wrapping mechanism in the shape of a hand-like grip for edge-wrapping the transition edge. The edge-wrapping mechanism includes a first flanging unit, a first positioning and pressing unit, and a first control unit. The first flanging unit includes: a first flanging block, correspondingly arranged outside the transition edge, horizontally arranged, in an inverted L shape, matching the shape of the transition edge, having a first upper surface and a first lower surface that are S-shaped in the vertical direction, and a first side surface that is S-shaped in the horizontal direction; and a first flanging driving member for driving the first flanging block to perform forward or backward movements. The first positioning and pressing unit includes: a first pressing block, rotatably connected to the first flanging block, in an inverted L shape, having a pressing lower surface that matches the shape and size of the first upper surface; and a first pressing driving member for driving the first pressing block to rotate forward or backward by a predetermined angle. The first control unit controls the first pressing driving member to drive the first pressing block to rotate forward by a predetermined angle, so that the pressing lower surface presses the skin against the first upper surface in a predetermined state. The predetermined state is a state where both the first pressing block and the first flanging block can drive the skin to move and slide relative to the skin; the first control unit also controls the first flanging driving member to drive the first flanging block to perform a forward movement at a second predetermined speed, so that the skin is flipped from the outer surface of the automotive armrest skeleton to the inner surface.

[0013] In the automotive armrest spray-bonding edge-wrapping system provided by the present invention, it may further have the following features: Among them, the first flanging driving member is also used to drive the first flanging block to perform downward or upward movements. The first control unit also controls the first flanging driving member to drive the first flanging block to perform an upward movement at a first predetermined speed, so that the first lower surface is higher than the upper surface of the transition edge by a predetermined height. The first control unit also controls the first flanging driving member to drive the first flanging block to perform a downward movement at a third predetermined speed, so that the skin covers the inner surface of the automotive armrest skeleton.

[0014] In the automotive armrest spray-bonding edge-wrapping system provided by the present invention, it may further have the following features: Among them, the first predetermined speed, the second predetermined speed, and the third predetermined speed are equal. The predetermined height is less than or equal to the thickness of the skin. The first pressing block and the first flanging block are rotatably connected through a rotating shaft. Both the first pressing driving member and the first flanging driving member are cylinder driving members.

[0015] Functions and effects of the invention

[0016] According to the automotive armrest spray gluing and edge wrapping system involved in the present invention, since it includes a spray gluing device and an automotive armrest composite edge wrapping device, and the automotive armrest composite edge wrapping device includes an epidermis fixing device, a skeleton fixing device, a baking device, and an edge wrapping device. The epidermis can be spray glued through the spray gluing device, and the epidermis with hot melt adhesive on its inner surface can be pasted on the automotive armrest skeleton and the edge of the automotive armrest skeleton can be wrapped through the automotive armrest composite edge wrapping device. That is, automatic spray gluing, automatic pasting of the epidermis, and edge wrapping processing can be achieved through this system, improving the quality stability and efficiency of automotive armrest processing.

[0017] In addition, since the epidermis fixing device includes a profiling mold, a pneumatic positioning unit, and a vacuum generator, multiple through holes are provided on the profiling mold, and the pneumatic positioning unit has positioning pins that match the positioning holes on the epidermis. The epidermis can be initially positioned through the cooperation of the positioning pins and the positioning holes, so that the epidermis can be accurately placed on the positioning pins and the profiling mold. Then, the through holes are evacuated by the vacuum generator to adsorb and tightly hold the epidermis on the profiling mold. Therefore, rapid and accurate positioning of the epidermis can be achieved through this epidermis fixing device, and this device also has the advantages of simple structure and easy automation control. Brief Description of the Drawings

[0018] Figure 1 is the structural block diagram of the automotive armrest spray gluing and edge wrapping system in the embodiment of the present invention;

[0019] Figure 2 is the three-dimensional structural schematic diagram of the automotive armrest composite edge wrapping device in the embodiment of the present invention Figure 1 ;

[0020] Figure 3 is the three-dimensional structural schematic diagram of the automotive armrest composite edge wrapping device in the embodiment of the present invention Figure 2 ;

[0021] Figure 4 is the structural schematic diagram of the epidermis fixing device in the embodiment of the present invention;

[0022] Figure 5 is the structural schematic diagram of the pneumatic positioning unit in the embodiment of the present invention;

[0023] Figure 6 is the structural schematic diagram of the edge wrapping device in the embodiment of the present invention;

[0024] Figure 7 is the structural schematic diagram of the edge wrapping mechanism in the shape of a hand-like grip in the embodiment of the present invention;

[0025] Figure 8 is the structural schematic diagram of the automotive armrest skeleton in the present invention;

[0026] Figure 9 isFigure 8 Enlarged schematic diagram of the transition edge Specific implementation mode

[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the following embodiments will specifically describe the automotive armrest spray gluing and edge wrapping system of the present invention in conjunction with the drawings.

[0028] Figure 1 It is a structural block diagram of the automotive armrest spray gluing and edge wrapping system in the embodiment of the present invention.

[0029] As shown in the figure, this embodiment provides an automotive armrest spray gluing and edge wrapping system 1000, including a spray gluing device 100, an automotive armrest composite edge wrapping device 200 and a control device 300. The control device 300 is used to control the operation of the spray gluing device 100 and the automotive armrest composite edge wrapping device 200, so that the skin processed by the spray gluing device 100 is transferred to the automotive armrest composite edge wrapping device 200 for processing at a constant interval time. This transfer can be manual or automatic by equipment.

[0030] The spray gluing device 100 is used to spray hot melt adhesive on the inner surface of the cut skin mentioned in the background technology, and has a spray gluing control device 110. This spray gluing device 100 is prior art. For example, the automotive interior door panel spray gluing device in the previously published Chinese patent application CN110947561A applied by the applicant can be used, and on this basis, the bracket for fixing the automotive interior door panel in its placement part can be changed to a structure for fixing the skin. In addition, the spray gluing control device 110 is communicatively connected to the control device 300 and operates under the control of the control device 300.

[0031] Figure 2 It is a three-dimensional structural schematic of the automotive armrest composite edge wrapping device in the embodiment of the present invention Figure 1 ; Figure 3 It is a three-dimensional structural schematic of the automotive armrest composite edge wrapping device in the embodiment of the present invention Figure 2 .

[0032] The automotive armrest composite edge wrapping device 200 is used to paste the skin with hot melt adhesive (layer) on the inner surface processed by the spray gluing device 100 onto the automotive armrest skeleton 1 and wrap the edge of the automotive armrest skeleton 1. As Figures 1 - 3 shown, the automotive armrest composite edge wrapping device 200 includes a support mechanism 210, a skin fixing device 220, a skeleton fixing device 230, a baking device 240, a edge wrapping device 250 and an edge wrapping control device 260.

[0033] The edge wrapping control device 260 is communicatively connected to the control device 300, and includes a first control unit 261 and a second control unit 262. The first control unit 261 is configured to control the operation of the skin fixing device 220, the skeleton fixing device 230, and the baking device 240 under the control of the control device 300. The second control unit 262 is configured to control the operation of the edge wrapping device under the control of the control device 300.

[0034] As Figure 2 , 3 shown, the support mechanism 210 includes a lower support portion 211 and an upper support portion 212 connected together.

[0035] Figure 4 is a schematic structural diagram of the skin fixing device in an embodiment of the present invention.

[0036] As Figure 4 shown, the skin fixing device 220 is used to fix and position the skin, and includes a fixing frame (not shown in the figure), a profiling mold 221, a pneumatic positioning unit 222, and a vacuum generator 223 (not shown in the figure). The fixing frame is installed on the lower support portion 211.

[0037] The profiling mold 221 is fixedly arranged on the fixing frame, and has a shape matching the shape of the automotive armrest skeleton 1, and is used to fix the skin during the processing, prevent the skin from moving during the processing, and facilitate the smooth progress of the processing. The profiling mold 221 includes a first mold area 2211, a second mold area 2212, and a long side area 2213. A plurality of through hole groups 2214 are provided on the first mold area 2211 and the second mold area 2212, and each through hole group 2214 includes 4-8 through holes 22141 arranged in a straight line.

[0038] Among them, the first mold area 2211 corresponds to the first skin area of the skin, and the plurality of through holes 22141 in the through hole group 2214 provided on the first mold area 2211 are linearly distributed along the length direction of the profiling mold 221, and the plurality of through hole groups 2214 are distributed in rows and columns. No through holes 22141 are provided in the portion of the first mold area 2211 corresponding to the seam of the skin. The second mold area 2212 corresponds to the second skin area of the skin, and the plurality of through holes 22141 in the through hole group 2214 provided on the second mold area 2212 are linearly distributed along the length direction of the profiling mold 221, and the plurality of through hole groups 2214 are distributed in rows. A plurality of through holes 2215 uniformly distributed along its length direction are provided on the long side area 2213.

[0039] The vacuum generator is fixedly arranged on the fixing frame and is a vacuum pump. The vacuum pump is respectively connected to the through hole 22141 through a vacuum pipeline (not shown in the figure). When the vacuum pump evacuates the air in the vacuum pipeline and the through hole 22141, the through hole 22141 sucks the skin tightly onto the profiling mold 221.

[0040] Figure 5 It is a schematic structural diagram of the pneumatic positioning unit in the embodiment of the present invention.

[0041] As Figure 5 shown, the pneumatic positioning unit 222 is fixedly arranged on the fixing frame and has a positioning pin 2221 and a positioning pin driving cylinder 2222. The positioning pin 2221 matches the positioning hole on the skin and is used to pass through the positioning hole so that the skin is positioned on the profiling mold 221. The positioning pin driving cylinder 2222 is used to drive the positioning pin 2221 to move down or up. When the positioning pin driving cylinder 2222 drives the positioning pin 2221 to rise, the positioning pin 2221 is in the positioning station. At this time, by placing the skin on the positioning pin, the skin can be positioned on the profiling mold 221, so that the first skin area corresponds to the first mold area 2211, and the second skin area corresponds to the second mold area 2212. When the positioning pin driving cylinder 2222 drives the positioning pin 2221 to move down, it is convenient for the edge wrapping device 250 to perform edge wrapping from above the positioning pin 2221.

[0042] The number of the pneumatic positioning units 222 is the same as the number of the positioning holes on the skin. A plurality of pneumatic positioning units 222 are arranged around the periphery of the profiling mold 221, and their distribution corresponds to the distribution of the positioning holes.

[0043] Among them, the pneumatic positioning unit 222 corresponding to the long side area 2213 is arranged below the through hole 2215 of the long side area 2213. When the positioning pin driving cylinder 2222 drives these positioning pins 2221 to rise, the positioning pins 2221 pass through and out of the through hole 2215, so as to reach their positioning stations. The part of the positioning pin 2221 passing through the through hole 2215 is used to position the skin. When the positioning pin driving cylinder 2222 drives the positioning pin 2221 to move down, the top of the positioning pin 2221 is lower than the top of the through hole 2215.

[0044] As Figure 2As shown, the skeleton fixing device 230 is installed on the upper support portion 212 and is used to fix the automotive armrest skeleton 1. It includes a skeleton fixing unit (not shown in the figure) and a vertical driving unit (not shown in the figure). The skeleton fixing unit is installed on the vertical driving unit and is located directly above the profiling mold 221. It is used to fix the automotive armrest skeleton 1 and move up and down under the drive of the vertical driving unit. The skeleton fixing unit is a prior art, for example, it adopts a structure in which a positioning mold and a clamping jaw cooperate. The vertical driving unit is a prior art, for example, it adopts a slide rail type structure.

[0045] As Figure 3 shown, the baking device 240 is installed on the lower support portion 211 and is used to heat the hot melt adhesive on the automotive armrest skeleton 1 and the skin. The baking device 240 includes a heating unit 241 and a horizontal driving unit (not shown in the figure). The heating unit 241 includes a heating rack (not shown in the figure), an upper heating pipe (not shown in the figure), and a lower heating pipe (not shown in the figure). The heating rack is installed on the horizontal driving unit. The upper heating pipe is installed on the heating rack and is used to heat the automotive armrest skeleton 1 under the control of the first control unit 261. The lower heating pipe is installed on the heating rack and is used to melt the hot melt adhesive layer of the skin under the control of the first control unit 261. The horizontal driving unit is used to drive the heating rack of the heating unit 241 to move horizontally. When the heating rack moves horizontally from the heating initial position to the heating position under the drive of the horizontal driving unit, the upper heating pipe is located below the skeleton fixing unit and corresponds to the skeleton fixing unit, and the lower heating pipe is located above the profiling mold 221 and corresponds to the profiling mold 221. The horizontal driving unit is a prior art, for example, it adopts a slide rail type structure.

[0046] Figure 6 It is a schematic structural diagram of the edge wrapping device in the embodiment of the present invention.

[0047] As Figure 6 shown, the edge wrapping device 250 is used to turn the skin adhered to the automotive armrest skeleton 1 from the outer surface of the automotive armrest skeleton 1 to the inner surface, and includes an edge wrapping mechanism 251 that imitates hand-like grasping and a non-transition edge wrapping mechanism 252. The edge wrapping mechanism 251 that imitates hand-like grasping and the non-transition edge wrapping mechanism 252 are both arranged outside the profiling mold 221.

[0048] Figure 7 It is a schematic structural diagram of the edge wrapping mechanism that imitates hand-like grasping in the embodiment of the present invention.

[0049] As Figure 7As shown, the hemming mechanism 251 for mimicking hand-like grasping is used to hem the transition edge 2 of the automotive armrest skeleton 1. Therefore, this mechanism is also called the transition edge hemming mechanism. The number of the transition edge hemming mechanisms 251 is at least two, and they are respectively arranged at positions corresponding to the transition edge 2. Each hemming mechanism 251 for the transition edge includes a first flanging unit 2511, a first positioning and pressing unit 2512, and a first control unit (not shown in the figure).

[0050] The first flanging unit 2511 includes a first flanging block 25111 and a first flanging driving member 25112. The first flanging block 25111 is correspondingly arranged outside the transition edge 2, horizontally arranged, in an inverted L shape, matching the shape of the transition edge, having a first upper surface 251111 and a first lower surface 251112 that are S-shaped in the vertical direction, and a first side surface 251113 that is S-shaped in the horizontal direction. The first flanging driving member 25112 is used to drive the first flanging block 25111 to perform forward or backward or downward or upward movements. The first flanging driving member 25112 is a cylinder driving member. The cylinder driving member includes, for example, two cylinders, and these two cylinders respectively drive the first flanging block 25111 to move in the horizontal direction and the vertical direction.

[0051] The first positioning and pressing unit 2512 includes a first pressing block 25121 and a first pressing driving member 25122. The first pressing block 25121 is rotatably connected to the first flanging block 25111 through a rotating shaft. Therefore, the first pressing block 25121 can both rotate relative to the first flanging block 25111 and move forward or backward or downward or upward together with the first flanging block 25111. The first pressing block 25121 is in an inverted L shape and has a pressing lower surface 251211 that matches the shape and size of the first upper surface 251111. The first pressing driving member 25122 is used to drive the first pressing block to rotate forward or backward by a predetermined angle. The first pressing driving member 25122 is a cylinder driving member.

[0052] The first upper surface 251111, the first lower surface 251112, the first side surface 251113, and the pressing lower surface 251211 are all smooth surfaces.

[0053] The first control unit is communicatively connected to the second control part 262 and is used to control the first pressing driving member 25122 to drive the first pressing block 25121 to rotate forward or backward by a predetermined angle under the control of the second control part 262. When the first pressing block 25121 rotates forward by a predetermined angle, the pressing lower surface 251211 presses the skin against the first upper surface 251111 in a predetermined state. This predetermined state is a state in which both the first pressing block 25121 and the first flanging block 25111 can drive the skin to move and can slide relative to the skin.

[0054] The first control unit is further configured to control, under the control of the second control unit 262, the first flanging drive member 25112 to drive the first flanging block 25111 to perform forward or backward or upward or downward movement. When the first flanging block 25111 moves forward, the first flanging block 25111 flips the skin from the outer surface of the vehicle armrest skeleton 1 to the inner surface; when the first flanging block 25111 moves downward, the first flanging block 25111 causes the skin to cover the inner surface of the vehicle armrest skeleton 1.

[0055] As Figure 6 shown, the non-transition edge hemming mechanism 252 is used to hem the non-transition edge 3 of the vehicle armrest skeleton 1. The number of non-transition edge hemming mechanisms 252 is multiple, and they are respectively arranged at positions corresponding to the non-transition edge 3. Each non-transition edge hemming mechanism 252 includes a second flanging unit 2521 and a first control unit (not shown in the figure).

[0056] The second flanging unit 2521 includes a second flanging block 25211 and a second flanging drive member 25212. The second flanging block 25211 matches the shape of the non-transition edge and is in an inverted L shape. The second flanging drive member 25212 is used to drive the second flanging block 25211 to perform forward or backward or upward or downward movement. The second flanging drive member 25212 is a cylinder drive member.

[0057] The second control unit is communicatively connected to the second control unit 262, and is configured to control, under the control of the second control unit 262, the second flanging drive member 25212 to drive the second flanging block 25211 to perform forward or backward or upward or downward movement. When the second flanging block 25211 moves forward, the second flanging block 25211 flips the skin from the outer surface of the vehicle armrest skeleton 1 to the inner surface; when the second flanging block 25211 moves downward, the second flanging block 25211 causes the skin to cover the inner surface of the vehicle armrest skeleton 1.

[0058] Under the control of the control device 300, the first control unit 261 controls the operation of the skin fixing device 220, the skeleton fixing device 230, and the baking device 240. The process of pasting the skin with a hot melt adhesive (layer) on the inner surface to the vehicle armrest skeleton 1 includes the following steps:

[0059] Step S1-1, the first control unit 261 controls the positioning pin drive cylinder 2222 to drive the positioning pin 2221 to rise from its initial position to the positioning position, and then proceeds to step S1-2.

[0060] Step S1-2: Align the positioning holes on the skin with the positioning pins 2221, and place the skin on the profiling mold 221 and the positioning pins 2221 with its back facing up. Also, fix the automotive armrest skeleton 1 on the skeleton fixing unit with the surface (outer surface) to which the skin is to be pasted facing down. Then proceed to step S1-3.

[0061] Step S1-3: The first control unit 261 controls the vacuum generator to evacuate the air, adsorbing the decorative fabric on the profiling mold 221. Then proceed to step S1-4.

[0062] Step S1-4: The first control unit 261 controls the vertical drive unit to drive the skeleton fixing unit to move down from its initial position to the position to be heated, and at the same time controls the horizontal drive unit to drive the heating unit 241 to move horizontally from the initial heating position to the heating position. Then proceed to step S1-5.

[0063] Step S1-5: The first control unit 261 controls the upper heating tube to heat the automotive armrest skeleton 1, and at the same time controls the lower heating tube to heat the hot melt adhesive layer of the skin fixed on the profiling mold 221. Then proceed to step S1-6.

[0064] Step S1-6: The first control unit 261 controls the horizontal drive unit to drive the heating unit 241 to retract to the initial heating position, and controls the upper heating tube and the lower heating tube to stop heating. Then proceed to step S1-7.

[0065] Step S1-7: The first control unit 261 controls the vertical drive unit to drive the skeleton fixing unit to move down from the position to be heated to the pasting position, pressing the automotive armrest skeleton 1 against the skin. Then proceed to step S1-8.

[0066] Step S1-8: The first control unit 261 controls the positioning pin driving cylinder 2222 to drive the positioning pins 2221 to return from their positioning positions to their initial positions. At this time, the edge wrapping device 250 operates to turn over and press the skin at the edge of the automotive armrest skeleton 1 against the inner surface of the automotive armrest skeleton 1. Then proceed to step S1-9.

[0067] Step S1-9: The first control unit 261 controls the vacuum generator to stop evacuating the air, and then proceed to step S1-10.

[0068] Step S1-10: The first control unit 261 controls the vertical drive unit to drive the skeleton fixing unit to rise back to its initial position from the pasting position, and then proceed to step S1-11.

[0069] Step S1-11: Remove the automotive armrest skeleton 1 that has completed pasting and edge wrapping (processing completed) from the skeleton fixing unit, thus completing one round of pasting and edge wrapping processing.

[0070] Under the control of the control device 300, the process of the second control unit 262 controlling the transition edge hemming mechanism 251 to hem the transition edge 2 of the vehicle armrest skeleton 1 through the first control unit includes the following steps:

[0071] Step S2-1, the first control unit controls the first pressing drive member 25122 to drive the first pressing block 25121 to rotate forward by a predetermined angle, so that the pressing lower surface 251211 presses the skin against the first upper surface 251111 in a predetermined state, and then proceeds to step S2-2. This predetermined state is a state in which both the first pressing block 25121 and the first flanging block 25111 can drive the skin to move and slide relative to the skin.

[0072] Step S2-2, the first control unit controls the first flanging drive member 25122 to drive the first flanging block 25111 to perform a rising action from the initial position at a first predetermined speed, reach the first flanging position, and then proceed to step S2-3. When the first flanging block 25111 is at the first flanging position, the first lower surface 251112 is higher than the upper surface of the transition edge 2 by a predetermined height, and this predetermined height is less than or equal to the thickness of the skin.

[0073] Step S2-3, the first control unit controls the first flanging drive member 25122 to drive the first flanging block 25111 to perform a forward movement from the first flanging position at a second predetermined speed, reach the second flanging position, so that the skin is flipped from the outer surface of the vehicle armrest skeleton 1 to the inner surface, and then proceeds to step S2-4.

[0074] Step S2-4, the first control unit controls the first flanging drive member 25122 to drive the first flanging block 25111 to perform a downward movement from the second flanging position at a third predetermined speed, so that the skin covers the inner surface of the vehicle armrest skeleton, and then proceeds to step S2-5.

[0075] Among them, in steps S2-S4, the first control unit also controls the first pressing block 25121 to remain in a state where the skin is pressed against the first upper surface 251111 in a predetermined state. The first predetermined speed, the second predetermined speed, and the third predetermined speed are equal.

[0076] Step S2-5, the first control unit controls the first flanging drive member 25122 to drive the first flanging block 25111 to return to the initial position through rising, retracting, and downward movement in sequence. The return speed of the first flanging block 25111 is greater than or equal to the first predetermined speed, preferably greater than the first predetermined speed.

[0077] Under the control of the control device 300, the process of the second control unit 262 controlling the non-transition edge hemming mechanism 252 to hem the non-transition edge 3 of the vehicle armrest skeleton 1 through the second control unit includes the following steps:

[0078] In step S3-1, the second control unit controls the second flanging driving member 25212 to drive the second flanging block 25211 to move forward from its initial position, so that the skin is flipped from the outer surface of the vehicle armrest skeleton 1 to the inner surface, and then step S3-2 is entered.

[0079] In step S3-2, the second control unit controls the second flanging driving member 25212 to drive the second flanging block 25211 to move downward, so that the skin covers the inner surface of the vehicle armrest skeleton, and then step S3-3 is entered.

[0080] In step S3-3, the second control unit controls the second flanging driving member 25212 to drive the second flanging block 25211 to return to its initial position through ascending and retracting actions in sequence.

[0081] Functions and effects of the embodiment

[0082] According to the vehicle armrest spray gluing and edge wrapping system involved in this embodiment, since it includes a spray gluing device, a vehicle armrest composite edge wrapping device, and a control device, and the vehicle armrest composite edge wrapping device includes a skin fixing device, a skeleton fixing device, a baking device, and an edge wrapping device, the skin can be spray-glued by the spray gluing device, the skin with hot melt adhesive on the inner surface can be pasted on the vehicle armrest skeleton by the vehicle armrest composite edge wrapping device, and the vehicle armrest skeleton can be edge-wrapped, and the operation of the spray gluing device and the vehicle armrest composite edge wrapping device can be controlled by the control device, that is, automatic spray gluing, automatic skin pasting, and edge wrapping processing can be realized through this system, improving the quality stability and efficiency of vehicle armrest processing.

[0083] In addition, since the skin fixing device in this embodiment includes a profiling die, a pneumatic positioning unit, and a vacuum generator, the profiling die is provided with a plurality of through holes, and the pneumatic positioning unit has positioning pins matching the positioning holes on the skin. The skin can be initially positioned through the cooperation of the positioning pins and the positioning holes, so that the skin can be accurately placed on the positioning pins and the profiling die, and then the vacuum generator evacuates the through holes to adsorb and tightly hold the skin on the profiling die. Therefore, the skin can be quickly and accurately positioned through this skin fixing device, and this device also has the advantages of simple structure and easy automation control.

[0084] Furthermore, since the profiling die in this embodiment includes a first die area corresponding to the first skin area of the skin, and the plurality of through holes provided on the first die area are linearly distributed along the length direction of the profiling die, it is convenient to avoid arranging through holes in the part corresponding to the sewing line on the first die area, thereby avoiding the influence on the sewing line connection part on the skin during subsequent vacuum positioning.

[0085] Furthermore, since the profiling die blank in this embodiment further includes a second die blank area, and the multiple through holes in the through hole group on the second die blank area are linearly distributed along the width direction of the profiling die blank, and this distribution direction is perpendicular to the arrangement direction of the through holes in the through hole group on the first die blank area, the different arrangements during vacuum extraction on the two die blank areas can enable the entire profiling die blank to achieve a better vacuum positioning effect on the skin.

[0086] Furthermore, since the number of pneumatic positioning units in this embodiment is the same as the number of positioning holes on the skin and they are correspondingly arranged, good positioning of the edge of the skin can be achieved.

[0087] Furthermore, since the pneumatic positioning unit in this embodiment drives the positioning pin to move down and up through a cylinder, the positioning pin can provide a positioning function only during the process of pasting the skin, thus not interfering with the edge wrapping process of the subsequent edge wrapping device.

[0088] Furthermore, since through holes are also provided in the long side area of the profiling die blank in this embodiment, after the cylinder drives the positioning pin to rise, the positioning pin passes through and exits the through hole, and the part of the positioning pin exiting the through hole can position the skin. When the cylinder drives the positioning pin to move down, the top of the positioning pin is lower than the top of the through hole. In this way, when the edge wrapping device performs edge wrapping, although the edge of the skin is no longer positioned by the positioning pin, it can still be supported by the long side area of the profiling die blank, thereby achieving a better edge wrapping effect.

[0089] Furthermore, since the edge wrapping device in this embodiment includes an edge wrapping mechanism that imitates hand-like grasping and a non-transition edge wrapping mechanism, the edge wrapping mechanism that imitates hand-like grasping includes a flanging unit, a positioning and pressing unit, and a first control unit. The flanging unit includes a pressing block and a pressing driving member, the positioning and pressing unit includes a pressing block and a pressing driving member, and the first control unit can control the pressing driving member to drive the pressing block to rotate forward by a predetermined angle, so that the lower surface of the pressing presses the skin against the first upper surface in a predetermined state. The predetermined state is a state where the pressing block and the flanging block can both drive the skin to move and slide relative to the skin. In this way, when the flanging block advances at a second predetermined speed under the control of the first control unit, causing the skin to flip from the outer surface of the automotive armrest skeleton to the inner surface, it can imitate the state of pulling the skin tight and slowly sliding out while edge wrapping during manual edge wrapping, preventing the appearance of skin wrinkles and achieving high-quality edge wrapping of the transition edge of the skeleton.

[0090] Similarly, when the flanging block moves up at a first predetermined speed and moves down at a third predetermined speed under the control of the first control unit, the skin is also in a tight and slowly sliding out state.

[0091] Further, the first control unit also controls the flanging drive member to drive the flanging block to perform a rising action at a first predetermined speed, so that the first lower surface is higher than the upper surface of the transition edge by a predetermined height, and the predetermined height is less than or equal to the thickness of the skin. When the skin is turned from the outer surface of the automotive armrest skeleton to the inner surface, the flanging block presses the skin on the automotive armrest skeleton, thereby achieving a better pasting and edging effect.

[0092] Further, the first predetermined speed, the second predetermined speed, and the third predetermined speed are equal and less than the return speed of the flanging block, which not only ensures the uniform consistency during flanging and achieves a good flanging effect, but also further shortens the retraction time and improves the processing efficiency.

[0093] Further, the pressing block and the flanging block are rotatably connected by a rotating shaft, which has a simple structure and is convenient for controlling the flanging block to rotate a predetermined angle.

[0094] The above embodiments are preferred cases of the present invention and are not used to limit the protection scope of the present invention.

Claims

1. An automotive armrest spray glue edge - wrapping system, characterized in that, it includes: A spray - glue device for spraying hot - melt glue on the inner surface of the skin; An automotive armrest composite edge - wrapping device for pasting the skin with hot - melt glue on its inner surface onto the automotive armrest skeleton and edge - wrapping the automotive armrest skeleton, including: A support mechanism; A skin fixing device arranged on the support mechanism for fixing the skin; A skeleton fixing device arranged on the support mechanism and above the skin fixing device for fixing the automotive armrest skeleton; A baking device arranged on the support mechanism for melting the hot - melt glue layer of the decorative fabric and heating the door panel; and An edge - wrapping device for edge - wrapping the automotive armrest skeleton, wherein, the skin fixing device includes a fixing frame and a profiling mold, a pneumatic positioning unit, and a vacuum generator fixedly arranged on the fixing frame, the profiling mold has a shape matching the shape of the automotive armrest skeleton for positioning the skin, and a plurality of through - holes are arranged on the profiling mold, the pneumatic positioning unit has positioning pins matching the positioning holes, and the positioning pins are used to pass through the positioning holes so that the skin is positioned on the profiling mold; the vacuum generator is respectively communicated with the plurality of through - holes for evacuating the through - holes to adsorb and tightly hold the skin on the profiling mold, the automotive armrest skeleton includes a transition edge, the transition edge becomes narrower from wide in the horizontal direction and gradually decreases in height in the vertical direction, the edge - wrapping device includes an edge - wrapping mechanism in the shape of a hand - like grip for edge - wrapping the transition edge, and the edge - wrapping mechanism includes a first flanging unit, a first positioning and pressing unit, and a first control unit, the first flanging unit includes: A first flanging block correspondingly arranged outside the transition edge, horizontally arranged, in an inverted L - shape, matching the shape of the transition edge, having a first upper surface and a first lower surface that are S - shaped in the vertical direction, and a first side surface that is S - shaped in the horizontal direction; and A first flanging driving member for driving the first flanging block to move forward or backward or downward or upward, including two driving cylinders, and the two driving cylinders respectively drive the first flanging block to move in the horizontal and vertical directions, the first positioning and pressing unit includes: A first pressing block rotatably connected to the first flanging block, in an inverted L - shape, having a pressing lower surface matching the shape and size of the first upper surface; and A first pressing driving member for driving the first pressing block to rotate forward or backward by a predetermined angle, the first control unit controls the first pressing driving member to drive the first pressing block to rotate forward by the predetermined angle so that the pressing lower surface presses the skin on the first upper surface in a predetermined state, and the predetermined state is a state where the first pressing block and the first flanging block can both drive the skin to move and slide relative to the skin.

2. The automotive armrest spray glue edge - wrapping system according to claim 1, characterized in that: wherein, The epidermis includes a first epidermis region, and a stitch extending in the length direction is provided on the first epidermis region. The profiling die blank includes a first die blank region corresponding to the first epidermis region. A plurality of the through holes are arranged in through hole groups. A plurality of the through holes in the through hole groups provided on the first die blank region are linearly distributed along the length direction of the profiling die blank. The plurality of through hole groups are arranged in rows or columns. No through holes are provided in the portion of the first die blank region corresponding to the stitch.

3. The automotive armrest glue spraying and edge wrapping system according to claim 1, wherein: Wherein, The pneumatic positioning unit further has a cylinder, and the cylinder drives the positioning pin to move downward or upward.

4. The automotive armrest glue spraying and edge wrapping system according to claim 3, wherein: Wherein, A through hole is further provided on the profiling die blank, and the positioning pin corresponds to the through hole. After the cylinder drives the positioning pin to rise, the positioning pin passes through and exits the through hole. The portion of the positioning pin exiting the through hole is used to position the epidermis. After the cylinder drives the positioning pin to move downward, the top of the positioning pin is lower than the top of the through hole.

5. The automotive armrest glue spraying and edge wrapping system according to claim 1, wherein: Wherein, The first control unit further controls the first flanging drive member to drive the first flanging block to move forward at a second predetermined speed, so that the epidermis is flipped from the outer surface of the automotive armrest skeleton to the inner surface.

6. The automotive armrest glue spraying and edge wrapping system according to claim 5, wherein: Wherein, The first control unit further controls the first flanging drive member to drive the first flanging block to move upward at a first predetermined speed, so that the first lower surface is higher than the upper surface of the transition edge by a predetermined height. The first control unit further controls the first flanging drive member to drive the first flanging block to move downward at a third predetermined speed, so that the epidermis covers the inner surface of the automotive armrest skeleton.

7. The automotive armrest glue spraying and edge wrapping system according to claim 6, wherein: Wherein, The first predetermined speed, the second predetermined speed, and the third predetermined speed are equal. The predetermined height is less than or equal to the thickness of the epidermis. The first pressing block and the first flanging block are rotatably connected through a rotating shaft. The first pressing drive member and the first flanging drive member are both cylinder drive members.

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