An automatic bonding machine for a headrest component of an automobile seat

Abstract

An automatic bonding machine for a headrest component of an automobile seat comprises a support, a placement table, a presser, a presser driving mechanism, a two-way pressing plate, a pressing plate driving mechanism, the placement table is connected to the support, the presser is located above the placement table and is connected to the support through the presser driving mechanism, the two-way pressing plate is connected to the support through the pressing plate driving mechanism, the first plate and the second plate of the two-way pressing plate are oppositely arranged on the two sides of the placement table, and the presser driving mechanism and the pressing plate driving mechanism form a loop with the power supply and the switch through a circuit. The operation of bending the two side regions of the double-layer belt and bonding the bent two side regions on the middle region of the double-layer belt in the prior art is automatically realized by the automatic bonding machine, the manufacturing efficiency of the double-layer belt is improved, the flatness and straightness of the bent part of the double-layer belt are guaranteed by automatic operation of the machine, the bonding effect of the bonding surface of the double-layer belt is better, and the manufacturing effect of the finished product of the double-layer belt is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive headrest manufacturing technology, and more particularly to an automatic bonding machine for automotive seat headrest components. Background Technology

[0002] A double-layer strap is a car seat headrest component that can serve as a pull cord for the headrest unlocking mechanism, a connecting strap for the buckle on the headrest cover, or a soft handle on the headrest cover. Double-layer straps are typically made by bonding two layers of leather strips together. During manufacturing, glue is first applied to the surface of one leather strip, which is often wider than the other. The other leather strip is then adhered to the glued surface. Glue is then applied again to the surface of the bonded double-layer structure. Finally, the excess portions on both sides of the bottom leather strip are folded, bent, and glued to the surface of the top leather strip. The bent strip is then pressed tightly to ensure a firm bond. After the glue dries, the double-layer strap is complete. However, this manufacturing method has drawbacks. Due to the thickness and elasticity of the leather strips, insufficient adhesion may occur after bending, leading to detachment of the bonded surfaces. Furthermore, it is difficult to guarantee the straightness and flatness of the bent areas by hand, and the bonding efficiency is relatively low. Therefore, this manufacturing method for double-layer straps requires further improvement. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic bonding machine for automobile seat headrest components that can ensure the straightness and flatness of the belt bending point and has high manufacturing efficiency, in light of the above-mentioned existing technology.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: An automatic bonding machine for automotive seat headrest components, characterized in that it includes a bracket, a placement platform capable of placing a double-layer strip and descending with the double-layer strip, and automatically returning to its original position when the presser releases the double-layer strip, a presser capable of pressing the middle area of ​​the double-layer strip to cause the two sides of the double-layer strip to bend upwards respectively, and disengaging from the gap between the two-way press plates when they are closed, a presser drive mechanism, two-way press plates capable of automatically closing after the placement platform descends, and pressing the two sides of the double-layer strip onto the middle area of ​​the double-layer strip when the presser is withdrawn from under the two-way press plates, and a press plate drive mechanism. The placement platform is connected to the bracket, the presser is located above the placement platform and connected to the bracket through the presser drive mechanism, the two-way press plates are connected to the bracket through the press plate drive mechanism, the first and second plates of the two-way press plates are oppositely arranged on both sides of the placement platform, and the presser drive mechanism and the press plate drive mechanism form a circuit with a power supply and a switch via wiring.

[0005] As an improvement, it is preferable to also include a gripper that can clamp the double-layer belt and lift it out of the placement table after the two-way push plate presses the two sides of the double-layer belt onto the middle area of ​​the double-layer belt.

[0006] In a further improvement, the gripper can preferably include a first clamp and a second clamp. The bidirectional press plate is provided with notches that allow the corresponding first and second clamps to be inserted when the first and second plates are closed. The presser driving mechanism includes a first driving mechanism that can drive the gripper and the presser to rise and fall simultaneously, and a second driving mechanism that can drive only the presser to rise and fall. The gripper and the second driving mechanism are connected to the first driving mechanism, and the presser is connected to the second driving mechanism.

[0007] As a further improvement, the bottom surfaces of the joining ends of the first and second plates can preferably both be inclined surfaces.

[0008] Further improvements include the provision of limiting blocks on both ends of the bottom surface of the first plate and both ends of the bottom surface of the second plate. A rake-shaped protrusion is provided on the side of each limiting block. The installation height of the rake-shaped protrusion is higher than the height of the placement platform after it is lowered. A grid-shaped notch that can extend into the rake-shaped protrusion is provided on the bracket connecting the placement platform at the position corresponding to the position of the rake-shaped protrusion.

[0009] In a further improvement, the limiting blocks can preferably be detachably inserted into the corresponding through holes of the bidirectional push plate.

[0010] As an improvement, the placement platform includes a movable plate, a positioning seat, and a limiting mechanism. Vertical through holes and return springs are spaced apart on the positioning seat. A plug-in rod is provided on the movable plate, and the plug-in rod is inserted into the corresponding vertical through hole. The return spring abuts against the bottom surface of the movable plate. The limiting mechanism is located on both sides of the positioning seat. The limiting mechanism is used to lock the movable plate after it moves downward and to release the movable plate after the presser rises.

[0011] As an improvement, slide rail frames can preferably be provided on the supports on both sides of the placement platform, and the first and second plates of the bidirectional pressing plate are connected to the slide rails of the corresponding slide rail frames.

[0012] As an improvement, the presser may preferably include a pressing element, two sets of opposing pressing blocks, two rotating shafts, and two swing shafts. The pressing element is connected to the second drive mechanism. Herringbone-shaped guide protrusions are distributed at intervals on the bottom of the pressing element. Guide arc-shaped holes are provided on the guide protrusions. The top of any pressing block is connected to the corresponding guide arc-shaped hole through the corresponding swing shaft. The middle end of any pressing block is rotatably connected to the corresponding rotating shaft. The bottom of any pressing block is provided with an arc-shaped section that can press the double-layer belt. The rotating shaft is connected to the frame on the first drive mechanism.

[0013] In a further improvement, the second driving mechanism may preferably include a slide rail seat connected to the first driving mechanism, a sliding block connected to the slide rail seat, and a driving cylinder, wherein the cylinder rod of the driving cylinder is connected to the sliding block, and the pressing member is detachably connected to the sliding block.

[0014] Compared with the prior art, the advantages of this invention are as follows: the bending of the two sides of the double-layer tape and the bonding of the two sides to the middle area of ​​the double-layer tape in the prior art are automatically realized by this automatic bonding machine, which improves the production efficiency of double-layer tape. At the same time, the automated operation of the machine can ensure the flatness and straightness of the double-layer tape at the bending point, and the bonding effect of the double-layer tape bonding surface is also better, which helps to improve the production effect of the finished double-layer tape. The gripper can automatically extract the bonded double-layer tape and remove it from the placement table, making it convenient for workers to take out the processed double-layer tape, further improving the production efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the present invention;

[0016] Figure 2 for Figure 1 Top view in the middle;

[0017] Figure 3 yes Figure 2 Cross-sectional view along line AA;

[0018] Figure 4 yes Figure 2 Cross-sectional view along the BB line;

[0019] Figure 5 yes Figure 1 Exploded structural diagram;

[0020] Figure 6 yes Figure 5 Further structural decomposition diagram;

[0021] Figure 7 yes Figure 6 Further structural decomposition diagram;

[0022] Figure 8 yes Figure 7 Further structural decomposition diagram;

[0023] Figure 9 yes Figure 1 A 3D view of the pressing block of the middle presser after it has rotated;

[0024] Figure 10 yes Figure 9 In Figure 8 In the exploded state, a separate exploded view of the structure related to the presser is displayed;

[0025] Figure 11 yes Figure 9 A three-dimensional view of the two-way panel after it is closed;

[0026] Figure 12 yes Figure 1A three-dimensional image of the double-layered belt with processing is placed inside;

[0027] Figure 13 yes Figure 12 Exploded view of the structure of the double-layer belt after processing;

[0028] Figure 14 yes Figure 3 Enlarged view of section I;

[0029] Figure 15 yes Figure 4 Enlarged view of Part II. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 15 As shown, the automatic bonding machine for the car seat headrest component of this embodiment includes a bracket 1, a placement platform 4 that can place the double-layer strip 2 and descend with the double-layer strip 2 and automatically return when the presser 3 releases the double-layer strip 2, a presser 3 that can press the middle region 21 of the double-layer strip 2 to bend the two side regions 22 of the double-layer strip 2 upwards respectively and can disengage from the gap between the two-way press plates 5 when they are closed, a presser drive mechanism, two-way press plates 5 that can automatically close after the placement platform 4 descends and press the two side regions 22 of the double-layer strip 2 onto the middle region 21 of the double-layer strip 2 when the presser 3 is pulled away from the two-way press plates 5, a press plate drive mechanism, and a gripper that can clamp the double-layer strip 2 and lift the double-layer strip 2 to a position that is detached from the placement platform 4 after the two-way press plates 5 press the two side regions 22 of the double-layer strip 2 onto the middle region 21 of the double-layer strip 2.

[0032] The placement platform 4 is connected to the bracket 1, and the presser 3 is located above the placement platform 4 and connected to the bracket 1 through a presser drive mechanism. The bidirectional press plate 5 is connected to the bracket 1 through a press plate drive mechanism, and the first plate 51 and the second plate 52 of the bidirectional press plate are arranged opposite each other on both sides of the placement platform 4.

[0033] The gripper includes a first clamp 35 and a second clamp 36. The bidirectional press plate 5 is provided with a notch 53 that allows the first plate 51 and the second plate 52 to be inserted into the corresponding first clamp 35 and second clamp 36 when they are closed. The presser driving mechanism includes a first driving mechanism that can drive the gripper and the presser 3 to rise and fall simultaneously, and a second driving mechanism that can drive only the presser 3 to rise and fall. The gripper and the second driving mechanism are connected to the first driving mechanism, and the presser 3 is connected to the second driving mechanism.

[0034] The specific structure of the first drive mechanism is as follows: a first drive cylinder 7 is mounted on the bracket 1. The cylinder rod of the first drive cylinder 7 is connected to a U-shaped drive rack 71. The drive rack 71 is connected in a guide groove of the bracket 1 and can be driven by the first drive cylinder 7 to move up and down along the guide groove. The two racks of the drive rack 71 mesh with a set of gears. The first set of gears includes a first gear 72, a second gear 73, and a third gear 74. The first gear 72 meshes with one rack of the drive rack 71, the first gear 72 meshes with the second gear 73, the second gear 73 meshes with the third gear 74, and the third gear 74 meshes with a rack on the first drive mechanism moving frame 75. The first drive mechanism moving frame 7 is connected to the limiting slide rail of the bracket 1 and can move up and down relative to the bracket. The first gear 72, the second gear 73, and the third gear 74 are rotatably connected to the bracket 1. The structure of the other set of gears is the same as that of the first set of gears, so it will not be described in detail. The first drive cylinder 7 drives the first drive mechanism moving frame 75 to move up and down through the gear set.

[0035] The presser 3 includes a pressing element 31, two sets of opposing pressing blocks 32, two rotating shafts 33, and two swing shafts 34. The pressing element 31 is connected to the second drive mechanism. Herringbone-shaped guide protrusions are distributed at intervals on the bottom of the pressing element 31. Guide arc-shaped holes 311 are provided on the guide protrusions. The top of any pressing block 32 is connected to the corresponding guide arc-shaped hole 311 through the corresponding swing shaft 34. The middle end of any pressing block 32 is rotatably connected to the corresponding rotating shaft 33. The bottom of any pressing block 32 is provided with an arc-shaped segment 321 that can press the double-layer belt 2. The rotating shaft 33 is connected to the frame 751 on the moving frame 75 of the first drive mechanism.

[0036] The second drive mechanism includes a slide rail seat 61 connected to the first drive mechanism moving frame 75, a sliding block 62 connected to the slide rail seat 61, and a drive cylinder 6. The drive cylinder 6 is connected to the first drive mechanism moving frame 75, and the cylinder rod of the drive cylinder 6 is connected to the sliding block 62. The pressing member 31 is detachably connected to the sliding block 62.

[0037] The bottom surfaces of the joined ends of the first plate 51 and the second plate 52 are both inclined surfaces 54. Limiting blocks 55 are provided on the bottom surfaces of both ends of the first plate 51 and the bottom surfaces of both ends of the second plate 52. A rake-shaped protrusion 56 is provided on the side of each limiting block 55. The installation height of the rake-shaped protrusion 56 is higher than the height of the placement platform 4 after it has been lowered. A grid-like notch 11, which can extend into the rake-shaped protrusion, is provided on the bracket 1 connecting the placement platform 4 at a position corresponding to the rake-shaped protrusion 56. Each limiting block 55 can be detachably inserted into the corresponding through hole of the bidirectional pressing plate 5.

[0038] Slide rail frames 12 are respectively provided on the brackets 1 on both sides of the placement platform 4, and the first plate 51 and the second plate 52 of the bidirectional pressing plate 5 are connected to the slide rails of the corresponding slide rail frames 12.

[0039] The push plate drive mechanism includes a front cylinder and a rear cylinder located at the bottom of the bracket 1. The front cylinder is connected to the front rack, and the rear cylinder is connected to the rear rack. The front rack drives the first plate 51 to move back and forth through the front lower gear 81, the front upper gear 82, and the front lower rack 83 connected to the bottom surface of the first plate 51. Similarly, the rear rack drives the second plate 52 to move back and forth through the rear lower gear 84, the rear upper gear 85, and the rear lower rack 86 connected to the bottom surface of the second plate 52.

[0040] The placement platform 4 includes a movable plate 41, a positioning seat 42, and a limiting mechanism 43. Vertical through holes and a return spring 421 are spaced apart on the positioning seat 42. A plug rod 411 is provided on the movable plate 41 and is inserted into the corresponding vertical through hole. The return spring 421 abuts against the bottom surface of the movable plate 41. The limiting mechanism 43 is located on both sides of the positioning seat 42. The limiting mechanism 43 is used to lock the movable plate 41 after it moves downward and to release the movable plate 41 after the presser 3 rises.

[0041] The limiting mechanism 43 includes symmetrically arranged snap-fit ​​structures. Each snap-fit ​​structure includes a snap-fit ​​drive cylinder 9, a snap-fit ​​drive rack 91, a first snap-fit ​​gear 92, a second snap-fit ​​gear 93, and a snap-fit ​​block 94. The sidewall of the snap-fit ​​block 94 has protruding teeth that mesh with the second snap-fit ​​gear 93. Since the specific connection relationship of the snap-fit ​​structure is clearly shown in the figure, it will not be described in detail again. The snap-fit ​​end of the snap-fit ​​block 94 extends beyond its end face. End notches that can pass through the end faces of the snap-fit ​​block 94 are provided at both ends of the moving plate 41, allowing the snap-fit ​​end to snap onto the top surface of the moving plate 41 after rotation.

[0042] The first drive cylinder 7, drive cylinder 6, front cylinder, rear cylinder, and two latching drive cylinders 9 are connected to the control circuit board, power supply, and switch via wires to form a circuit. The circuit structure used on the control circuit board is existing technology and will not be described in detail. The switch can be a double-button switch; both buttons must be pressed simultaneously to start the automatic bonding machine, ensuring safe operation.

[0043] Working principle: Place the double-layered tape coated with adhesive on the placement table, with the middle area of ​​the tape positioned on the table and the two sides on the bidirectional pressing plate. Press the middle area of ​​the tape with the presser, pressing the tape and the moving plate downwards. The two sides of the tape naturally bend towards the center. The first and second plates of the bidirectional pressing plate then move closer together, pressing the two sides of the tape towards the center.

[0044] The second drive mechanism pulls the presser, causing the pressing block to retract. The first drive mechanism raises the presser, and the pressing block disengages from under the bidirectional pressing plate. The limiting mechanism releases the moving plate, which then springs upwards with the double-layered strip. The two sides of the double-layered strip are completely pressed onto the middle area, bonding them together and completing the automatic bonding operation. At this point, the bidirectional pressing plate is not open. The second drive mechanism pushes the presser downwards, causing the pressing block to open again, but the bidirectional pressing plate remains closed. The pressing block presses against the bidirectional pressing plate, while the first and second clamps extend from the notch under the bidirectional pressing plate and bond or insert with the double-layered strip. After opening the bidirectional pressing plate, the first drive mechanism raises the clamping part, allowing the finished double-layered strip to be removed. The double-layered strip can then be detached from the clamping part.

[0045] The aforementioned bonding refers to the bonding of the excess portion of the double-layer tape, which has been coated with glue at both ends but not bonded to the sides, to the gripper. The insertion connection refers to the fact that the bottom of the first and second grippers each has a notch, and after the double-layer tape is bonded, a raised rib formed by pressing is formed in the middle, which inserts into the notch. The raised rib is due to the fact that the width of the side areas of the double-layer tape is greater than the width of the middle area; after bending and fitting, the ends of the side areas touch each other and bulge. Figure 13 The number 20 in the diagram refers to the double-layered tape obtained after manufacturing.

Claims

1. An automatic bonding machine for automotive seat headrest components, characterized in that: Includes a support (1), a placement platform (4) capable of holding the double-layer belt (2) and descending with the double-layer belt (2) and automatically returning to its original position when the presser (3) releases the double-layer belt (2), a presser (3) capable of pressing the middle area (21) of the double-layer belt (2) to bend the two sides (22) of the double-layer belt (2) upwards respectively and being able to disengage from the gap between the two-way press plates (5) when they are closed, a presser drive mechanism, and a presser drive mechanism that automatically closes after the placement platform (4) descends and is able to press When the device (3) is pulled out from under the bidirectional pressing plate (5), it presses the two sides (22) of the double-layer belt (2) onto the bidirectional pressing plate (5) and the pressing plate driving mechanism in the middle area (21) of the double-layer belt (2). The placement platform (4) is connected to the bracket (1). The presser (3) is located above the placement platform (4) and is connected to the bracket (1) through the presser driving mechanism. The bidirectional pressing plate (5) is connected to the bracket (1) through the pressing plate driving mechanism. The first plate (5) of the bidirectional pressing plate 1) The second plate (52) is disposed opposite to each other on both sides of the placement platform (4). The presser drive mechanism and the press plate drive mechanism form a circuit with the power supply and switch through the circuit; it also includes a gripper that can clamp the double-layer strip (2) after the two-way press plate (5) presses the two sides (22) of the double-layer strip (2) onto the middle area (21) of the double-layer strip (2) and lift the double-layer strip (2) to be separated from the placement platform (4); the gripper includes a first clamp (35) and a second clamp (36), which are disposed on the two sides (22) of the double-layer strip (2) and the middle area (21) of the double-layer strip (2). The bidirectional press plate (5) is provided with a notch (53) that allows the first plate (51) and the second plate (52) to be inserted into the corresponding first clamp (35) and second clamp (36) when they are closed. The presser driving mechanism includes a first driving mechanism that can drive the gripper and the presser (3) to rise and fall simultaneously, and a second driving mechanism that can drive only the presser (3) to rise and fall. The gripper and the second driving mechanism are connected to the first driving mechanism, and the presser (3) is connected to the second driving mechanism.

2. The automatic bonding machine according to claim 1, characterized in that: The bottom surfaces of the closing ends of the first plate (51) and the second plate (52) are both inclined surfaces (54).

3. The automatic bonding machine according to claim 2, characterized in that: Limiting blocks (55) are provided on the bottom surfaces of both ends of the first plate (51) and the bottom surfaces of both ends of the second plate (52). A rake-shaped protrusion (56) is provided on the side of any limiting block (55). The installation height of the rake-shaped protrusion (56) is higher than the height of the placement platform (4) after it is lowered. A grid-shaped notch (11) that can extend into the rake-shaped protrusion is provided on the bracket (1) connecting the placement platform (4) at the position corresponding to the rake-shaped protrusion (56).

4. The automatic bonding machine according to claim 3, characterized in that: Each of the limiting blocks (55) can be detachably inserted into the corresponding through hole of the bidirectional push plate (5).

5. The automatic bonding machine according to any one of claims 1 to 4, characterized in that: The placement platform (4) includes a movable plate (41), a positioning seat (42), and a limiting mechanism (43). Vertical through holes and a return spring (421) are spaced apart on the positioning seat (42). A plug-in rod (411) is provided on the movable plate (41). The plug-in rod (411) is inserted into the corresponding vertical through hole. The return spring (421) abuts against the bottom surface of the movable plate (41). The limiting mechanism (43) is located on both sides of the positioning seat (42). The limiting mechanism (43) is used to lock the movable plate (41) after it moves downward and to disengage the movable plate (41) after the presser (3) rises.

6. The automatic bonding machine according to any one of claims 1 to 4, characterized in that: Slide rail frames (12) are respectively provided on the brackets (1) on both sides of the placement platform (4), and the first plate (51) and the second plate (52) of the bidirectional pressing plate (5) are connected to the slide rails of the corresponding slide rail frames (12).

7. The automatic bonding machine according to any one of claims 1 to 4, characterized in that: The presser (3) includes a pressing element (31), two sets of opposing pressing blocks (32), two rotating shafts (33), and two swing shafts (34). The pressing element (31) is connected to the second drive mechanism. Herringbone-shaped guide protrusions are distributed at intervals on the bottom of the pressing element (31). Guide arc-shaped holes (311) are provided on the guide protrusions. The top of any pressing block (32) is connected to the corresponding guide arc-shaped hole (311) through the corresponding swing shaft (34). The middle end of any pressing block (32) is rotatably connected to the corresponding rotating shaft (33). The bottom of any pressing block (32) is provided with an arc-shaped section (321) that can press the double-layer belt (2). The rotating shaft (33) is connected to the frame on the first drive mechanism.

8. The automatic bonding machine according to claim 7, characterized in that: The second drive mechanism includes a slide rail seat (61) connected to the first drive mechanism, a sliding block (62) connected to the slide rail seat (61), and a drive cylinder (6). The cylinder rod of the drive cylinder (6) is connected to the sliding block (62), and the pressing member (31) is detachably connected to the sliding block (62).

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