Sponge leather layer combination device for automotive upholstery

Abstract

The invention provides an automotive upholstery sponge leather layer combination device, and relates to the field of upholstery processing, the automotive upholstery sponge leather layer combination device comprises a vertical frame, the front end of the vertical frame is fixedly connected with a front frame, the top of the inner side of the vertical frame is provided with a sponge roller, the bottom of the inner side of the vertical frame is provided with a leather roller, the rear side of the vertical frame is fixedly connected with a roller frame A and a roller frame B, and the inner sides of the roller frame A and the roller frame B are in threaded connection with threaded rods; the connecting rod B can be driven to swing in a reciprocating mode through linkage of the connecting rod, the scraping plate with teeth at the bottom can scrape the top face of a leather layer in conveying, the junction of the scraping plate and a sponge layer can be roughened, the adhesion strength can be improved, and the dust suction cover swinging in a reciprocating mode can suck and remove scraped leather scraps; leather glue is conveyed to the glue pipe through the gear pump, the rough leather surface can be subjected to uniform saw-tooth-shaped-track leather glue treatment, and the problem that an existing combination device is difficult to automatically treat the interface of a sponge layer and a leather layer so as to enhance the adhesion strength is solved.

Description

Technical Field

[0001] The invention relates to the technical field of interior decoration processing, in particular to a sponge leather layer assembly device for automobile interior decoration. Background Art

[0002] It is difficult for the existing technology to automatically process the interface between the sponge layer and the leather layer to enhance the adhesion strength. The existing device generally uses a roller to roll up the material after bonding the leather sponge layer, and it is difficult to accelerate the curing of the leather glue at the interface of the leather sponge layer during the transmission process. When the roller is rolled up, the leather and sponge layers that are not completely cured will be sheared and misaligned over time. The existing device is not convenient for automatically sewing and sealing the folded edges on both sides of the leather sponge layer, and sewing twill patterns inside the leather sponge layer. Summary of the invention

[0003] In view of this, the present invention provides a sponge leather layer assembly device for automobile interior decoration, which can drive a connecting rod B to swing back and forth through a connecting rod linkage, so that a toothed scraper at the bottom can scrape the top surface of the leather layer in transmission, thereby roughening the junction between the leather layer and the sponge layer and improving the adhesion strength.

[0004] The present invention provides a sponge leather layer assembly device for automobile interior decoration parts, which specifically comprises a stand frame, wherein the front end of the stand frame is fixedly connected to a front frame, and is characterized in that a sponge roller is installed on the top inner side of the stand frame, a leather roller is installed on the bottom inner side of the stand frame, a roller frame A and a roller frame B are fixedly connected to the rear side of the stand frame, threaded rods are threadedly connected to the inner sides of the roller frames A and B, a cross frame is rotatably connected to the bottom of the threaded rod, a cross roller is rotatably connected to the inner side of the stand frame, the cross roller is located on the rear side of the roller shaft at the bottom of the roller frame A, a clamping roller A is rotatably connected to the bottom of the cross frame of the roller frame B, a clamping roller B is rotatably connected to the inner side of the stand frame, the clamping roller A is located directly above the clamping roller B, and a tensioning roller is rotatably connected to the inner side of the stand frame; a servo motor A is fixedly connected to the top of the front frame, a shaft frame is fixedly connected to the rear side of the servo motor A, a transmission shaft is rotatably connected to the inner side of the shaft frame, three sets of bevel gears A are installed on the outer side of the transmission shaft, a bevel gear B is rotatably connected to the bottom of the shaft frame, and the bevel gear A meshes with the bevel gear B for transmission.

[0005] Optionally, the bottom of the bevel gear B is fixedly connected to a connecting rod A, the bottom of the connecting rod A is rotatably connected to a sliding seat, and the bottom of the shaft frame is rotatably connected to a connecting rod B.

[0006] Optionally, a sliding groove is opened on the inner side of the connecting rod B, and the sliding seat is slidably connected to the inner side of the sliding groove. The number of connecting rods B is set to three groups, and the front ends of the three groups of connecting rods B are respectively installed with hoses, dust hoods and scrapers. A rubber barrel and a vacuum cleaner are set on the side of the vertical frame, and the rubber barrel and the vacuum cleaner are connected to the rubber hose and the dust hood through pipes.

[0007] Optionally, a middle frame is fixedly connected to the rear side of the vertical frame, the top of the middle frame is connected to an electric heating saddle plate A through a spring rod, the top of the middle frame is rotatably connected to a flip frame, and an electric heating saddle plate B is installed at the bottom of the flip frame.

[0008] Optionally, a conveyor belt frame A is provided at the rear side of the middle frame, a conveyor belt is rotatably connected to the inner side of the conveyor belt frame A, a bevel gear D is coaxially connected to the side of the rotating shaft of the conveyor belt frame A, and a bevel gear C is rotatably connected to the outer side of the conveyor belt frame A. The bevel gear D is meshed with the bevel gear C for transmission, and a grooved tube is coaxially connected to the top of the bevel gear C.

[0009] Optionally, the top of the conveyor belt frame A is slidably connected to a conveyor belt frame B, the bottom of the conveyor belt frame B is fixedly connected to an outer slide, the bottom of the conveyor belt frame A is rotatably connected to a threaded rod, the threaded rod is threadedly connected to the outer slide, the conveyor belt frame B has the same side bevel gear structure as the conveyor belt frame A, the side bevel gear of the conveyor belt frame B is coaxially connected to the hexagonal rod, and the hexagonal rod is slidably connected to the inner side of the grooved tube.

[0010] Optionally, a backstage is provided at the rear side of the conveyor belt frame A, a door frame is fixedly connected to the top of the backstage, a threaded shaft is threadedly connected to the inner side of the door frame, and a clamping frame is rotatably connected to the bottom of the threaded shaft.

[0011] Optionally, an inclined spherical roller is rotatably connected to the inner vertical surface of the door frame, a lower pressure roller is rotatably connected to the rear side of the edge frame, and a support plate is fixedly connected to the top of the rear stage.

[0012] Optionally, two groups of sewing machines A are fixedly connected to the left and right sides of the backstage, a slide rail is fixedly connected to the top of the rear side of the backstage, a sewing machine B is slidably connected to the top of the slide rail, a servo motor B is fixedly connected to the left side of the backstage, a crank connecting rod is connected to the top of the rotating shaft of the servo motor B, and the telescopic part of the crank connecting rod is fixedly connected to the sewing machine B.

[0013] The beneficial effects of the sponge leather layer assembly device for automobile interior decoration of the present invention are as follows: The connecting rod linkage can drive the connecting rod B to swing back and forth, so that the toothed scraper at the bottom can scrape the top surface of the leather layer being transmitted, thereby roughening the interface between the leather layer and the sponge layer and improving the adhesion strength.

[0014] By operating the vacuum cleaner, the reciprocating oscillating dust hood can suck away the scraped dandruff, and the leather glue can be transferred to the rubber hose through the gear pump, so that the rough leather surface can be evenly glued in a zigzag trajectory. By squeezing the two layers of material through the clamping roller, the inner leather glue can evenly adhere to the sponge layer and the leather layer, which can improve the assembly efficiency during transportation.

[0015] After the adhesive leather sponge layer passes through the top of the electric heating saddle plate A, the flip frame is turned downward to make the electric heating saddle plate B fit the top of the leather sponge layer. The electric heating saddle plate heats the upper and lower surfaces of the leather sponge layer, which can accelerate the curing of the leather glue at the interface of the leather sponge layer during the transmission process.

[0016] By controlling the motor to drive the bevel gear C to rotate, it can drive the bevel gear D to rotate, which can drive the conveyor belt in the conveyor belt frame A to transmit. By driving the hexagonal rod to rotate through the grooved tube, the conveyor belts on the upper and lower sides can be transmitted synchronously. The surface friction can drive the bonded leather sponge layer to be transmitted at a uniform speed, which can prevent shear dislocation of the leather and sponge layers when the roller is rolled up.

[0017] The spherical roller and the edge frame are used to support the crease of the leather sponge layer, so that the edge angle of the leather sponge layer can be guided to be bent. The lower pressure roller on the rear side presses down the edge of the bent leather sponge layer, so that the edge of the leather sponge layer can be pressed. Through the operation of sewing machine A, the folded edges on both sides of the leather sponge layer can be sewn and sealed.

[0018] By controlling the operation of the servo motor B, the crank connecting rod can be used to drive the sewing machine B to move back and forth, so that the inner side of the leather sponge layer with edge banding that is transmitted at a uniform speed can be sewn, and zigzag serrated stitches can be sewn on the surface of the leather sponge layer, thereby enhancing the combined strength of the leather sponge layer and enriching the touch of the interior decoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 It is a schematic top view of the overall three-dimensional structure of the combined device of the first embodiment of the present invention.

[0022] Figure 2 It is a top view of the three-dimensional structure of the axis frame of the combined device according to the first embodiment of the present invention.

[0023] Figure 3 It is a side sectional stereoscopic schematic diagram of a stand of the combined device according to the first embodiment of the present invention.

[0024] Figure 4 It is a bottom-up stereoscopic schematic diagram of the entire assembly device of the first embodiment of the present invention.

[0025] Figure 5 It is a top perspective schematic diagram of the middle frame of the combination device of the first embodiment of the present invention.

[0026] Figure 6 It is a three-dimensional disassembled schematic diagram of the conveyor belt frame A of the combined device of the first embodiment of the present invention.

[0027] Figure 7 It is a top perspective schematic diagram of the backstage of the combined device of the second embodiment of the present invention.

[0028] Figure 8 It is a three-dimensional disassembly schematic diagram of the door frame of the combined device according to the second embodiment of the present invention.

[0029] Reference numerals list 1. Stand; 101. Front stand; 102. Sponge roller; 103. Leather roller; 104. Roller stand A; 105. Cross roller; 106. Roller stand B; 107. Clamping roller A; 108. Clamping roller B; 2. Servo motor A; 201. Shaft stand; 2011. Transmission shaft; 202. Bevel gear A; 203. Bevel gear B; 204. Connecting rod A; 205. Sliding seat; 206. Connecting rod B; 207. Hose; 208. Dust cover; 209. Scraper; 3. Middle stand; 301. Electric heating saddle plate A; 302, turning frame; 303, electric heating saddle plate B; 4, conveyor belt frame A; 401, bevel gear C; 402, bevel gear D; 403, grooved tube; 404, outer slide; 405, conveyor belt frame B; 406, hexagonal rod; 5, backstage; 501, door frame; 502, threaded shaft; 503, edge frame; 504, spherical roller; 505, lower pressure roller; 506, support plate; 6, sewing machine A; 601, slide rail; 602, servo motor B; 603, sewing machine B; 7, rubber barrel; 8, vacuum cleaner. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0031] Example 1: Please refer to Figures 1 to 6As shown: The present invention provides a sponge leather layer assembly device for automobile interior decoration, comprising a stand 1, a front frame 101 is fixedly connected to the front end of the stand 1, a sponge roller 102 is installed on the top of the inner side of the stand 1, a leather roller 103 is installed on the bottom of the inner side of the stand 1, a roller frame A104 and a roller frame B106 are fixedly connected to the rear side of the stand 1, a threaded rod is threadedly connected to the inner side of the roller frame A104 and the roller frame B106, a cross frame is rotatably connected to the bottom of the threaded rod, a cross roller 105 is rotatably connected to the inner side of the stand 1, the cross roller 105 is located at the rear side of the roller shaft at the bottom of the roller frame A104, a clamping roller A107 is rotatably connected to the bottom of the cross frame of the roller frame B106, a clamping roller B108 is rotatably connected to the inner side of the stand 1, and the clamping roller A109 is rotatably connected to the inner side of the stand 1. 7 is located directly above the clamping roller B108, and the inner side of the vertical frame 1 is rotatably connected to the tensioning roller; the top of the front frame 101 is fixedly connected to the servo motor A2, the rear side of the servo motor A2 is fixedly connected to the shaft frame 201, the inner side of the shaft frame 201 is rotatably connected to the transmission shaft 2011, and three sets of bevel gears A202 are installed on the outer side of the transmission shaft 2011, the bottom of the shaft frame 201 is rotatably connected to the bevel gear B203, the bevel gear A202 and the bevel gear B203 are meshed for transmission, the bottom of the bevel gear B203 is fixedly connected to the connecting rod A204, the bottom of the connecting rod A204 is rotatably connected to the slide seat 205, the bottom of the shaft frame 201 is rotatably connected to the connecting rod B206, the inner side of the connecting rod B206 is provided with a slide groove, and the slide seat 205 is slidably connected Connected to the inner side of the slide, the number of connecting rods B206 is set to three groups, and the front ends of the three groups of connecting rods B206 are respectively installed with hoses 207, dust hoods 208 and scrapers 209. The side of the stand 1 is provided with a rubber barrel 7 and a dust collector 8. The dust collector 8 is connected to the dust hood 208 through a pipeline, and the top of the rubber barrel 7 is connected to the rubber hose 207 through a gear pump. After the roller frame A104 threaded rod is driven to move downward by rotating the threaded rod, the rear side of the sponge layer can be tilted and straightened by cooperating with the cross roller A105 and the clamping roller. By controlling the operation of the servo motor A2, its rotating shaft can drive the transmission shaft 2011 to rotate, and the transmission shaft 2011 can drive the three groups of bevel gears A202 to rotate synchronously. The bevel gear A202 can drive the connecting rod A204 to rotate. During the rotation of the connecting rod A204, the bottom slide 205 can slide back and forth in the slide groove, which can drive the connecting rod B206 to swing back and forth, so that the bottom toothed scraper 209 can scrape the top surface of the leather layer in transmission, and make the junction between it and the sponge layer rough, which can improve the adhesion strength. Through the operation of the vacuum cleaner 8, the reciprocating dust hood 208 can absorb the scraped dandruff, and the leather glue can be transmitted to the hose 207 through the gear pump, so that the leather glue can be evenly applied to the rough leather surface in a Z-shaped trajectory. Through the extrusion of the clamping roller, the leather glue can adhere to the sponge layer and the leather layer.

[0032] like Figures 1 to 4As shown, the rear side of the vertical frame 1 is fixedly connected to the middle frame 3, the top of the middle frame 3 is connected to the electric heating saddle plate A301 through a spring rod, the top of the middle frame 3 is rotatably connected to the flip frame 302, and the bottom of the flip frame 302 is installed with an electric heating saddle plate B303. After the adhesive leather sponge layer passes through the top of the electric heating saddle plate A301, the flip frame 302 is rotated downward to make the electric heating saddle plate B303 fit the top of the leather sponge layer. By heating the upper and lower surfaces of the leather sponge layer with the electric heating saddle plate, the leather glue at the interface of the leather sponge layer can be accelerated to solidify during the transmission process.

[0033] like Figures 4 to 6 As shown, a conveyor belt frame A4 is arranged at the rear side of the middle frame 3, the inner side of the conveyor belt frame A4 is rotatably connected to a conveyor belt, the side of the conveyor belt frame A4 shaft is coaxially connected to a bevel gear D402, the outer side of the conveyor belt frame A4 is rotatably connected to a bevel gear C401, the bottom of the bevel gear C401 is connected to a motor shaft, the bevel gear D402 is meshed with the bevel gear C401 for transmission, the top of the bevel gear C401 is coaxially connected to a grooved tube 403, the top of the conveyor belt frame A4 is slidably connected to a conveyor belt frame B405, the bottom of the conveyor belt frame B405 is fixedly connected to an outer slide 404, the bottom of the conveyor belt frame A4 is rotatably connected to a threaded rod, the threaded rod is threadedly connected to the outer slide 404, the conveyor belt frame B405 is connected to the side bevel gear of the conveyor belt frame A4 The structures are the same. The bevel gear on the side of the conveyor frame B405 is coaxially connected with the hexagonal rod 406. The hexagonal rod 406 is slidably connected to the inner side of the grooved tube 403. The user can drive the outer slide 404 and the conveyor frame B405 to move downward by turning the hand wheel at the bottom of the threaded rod, so that the conveyor belts on the upper and lower sides can squeeze the adhered leather sponge layer. By controlling the motor to drive the bevel gear C401 to rotate, it can drive the bevel gear D402 to rotate, and drive the conveyor belt in the conveyor frame A4 to transmit. By driving the hexagonal rod 406 to rotate through the grooved tube 403, the conveyor belts on the upper and lower sides can be transmitted synchronously, and the adhered leather sponge layer can be driven to be transmitted at a uniform speed through surface friction.

[0034] Embodiment 2: Based on Embodiment 1, Figure 7 As shown, a backstage 5 is arranged at the rear side of the conveyor frame A4, a door frame 501 is fixedly connected to the top of the backstage 5, a threaded shaft 502 is threadedly connected to the inner side of the door frame 501, a clamping frame 503 is rotatably connected to the bottom of the threaded shaft 502, an inclined spherical roller 504 is rotatably connected to the inner vertical surface of the door frame 501, a lower pressure roller 505 is rotatably connected to the rear side of the clamping frame 503, a support plate 506 is fixedly connected to the top of the backstage 5, by clamping the edge of the leather sponge layer into the inner side of the gap between the spherical rollers 504 on the left and right sides, the fold of the leather sponge layer is supported by the inner clamping frame 503, the edge angle of the leather sponge layer can be guided to bend, and the edge of the leather sponge layer after being bent is pressed down by the lower pressure roller 505 on the rear side, so that the edge of the leather sponge layer can be pressed.

[0035] like Figure 7 and Figure 8 As shown, two groups of sewing machines A6 are fixedly connected to the left and right sides of the backstage 5, a slide rail 601 is fixedly connected to the top of the rear side of the backstage 5, and a sewing machine B603 is slidably connected to the top of the slide rail 601, a pressure roller is arranged on the top of the leather sponge layer between the sewing machines A6 and the sewing machines B603, a servo motor B602 is fixedly connected to the left side of the backstage 5, a crank connecting rod is connected to the top of the rotating shaft of the servo motor B602, and the telescopic part of the crank connecting rod is fixedly connected to the sewing machine B603, by the operation of the sewing machine A6, the folded edges on both sides of the leather sponge layer can be sealed, by controlling the operation of the servo motor B602, a cutting machine is arranged on the rear side of the sewing machine B603, and the sewing machine B603 can be driven by the crank connecting rod to move back and forth, so that the inner side of the leather sponge layer with edge sealing transmitted at a uniform speed can be sewn, and zigzag serrated stitches can be sewn on the surface of the leather sponge layer.

[0036] The specific usage and function of this embodiment: When the present invention is used, the raw material rollers for winding sponges and leathers are installed behind the sponge roller 102 and the leather roller 103, and the roller frame A104 is driven by rotating the threaded rod to drive the horizontal axis downward, and then the rear side of the sponge layer is tilted and straightened by cooperating with the cross roller A105 and the clamping roller, and the servo motor A2 is controlled to operate, and then the rotating shaft drives the transmission shaft 2011 to rotate, and then the transmission shaft 2011 drives the three sets of bevel gears A202 to rotate synchronously, and then the bevel gear A202 drives the connecting rod A204 to rotate, and during the rotation of the connecting rod A204, the bottom slide 205 is moved in the slide groove. Slide back and forth, and then drive the connecting rod B206 to swing back and forth, and then make the scraper 209 with teeth at the bottom scrape the top surface of the leather layer in transmission, and then make the junction with the sponge layer rough, and then improve the adhesion strength, through the operation of the vacuum cleaner 8, and then make the reciprocating swinging dust cover 208 suck the scraped dandruff, and transmit the leather glue to the rubber hose 207 through the gear pump, and then make the rough leather surface uniformly Z-shaped track leather glue, through the clamping roller squeeze, and then make the leather glue adhere to the sponge layer and the leather layer, and after the bonded leather sponge layer passes through the top of the electric heating saddle plate A301, turn the flip frame 302 downward, and make the electric heating saddle plate B303 The top of the leather sponge layer is fitted, and the upper and lower surfaces of the leather sponge layer are heated by an electric heating saddle plate. By turning the hand wheel at the bottom of the threaded rod, the outer slide 404 and the conveyor frame B405 are driven to move downward, and then the conveyor belts on the upper and lower sides squeeze the adhered leather sponge layer. The motor is controlled to drive the bevel gear C401 to rotate, and then it drives the bevel gear D402 to rotate, and then drives the inner conveyor belt of the conveyor frame A4 to transmit, and the hexagonal rod 406 is driven to rotate through the grooved tube 403, and then the conveyor belts on the upper and lower sides are transmitted synchronously, and the bonded leather sponge layer is then driven to be transmitted at a uniform speed through the surface friction. After the edge of the sponge layer is stuck into the inner side of the gap between the spherical rollers 504 on the left and right sides, the crease of the leather sponge layer is supported by the inner edge frame 503, and then the edge angle of the leather sponge layer is guided to bend, and the bent edge of the leather sponge layer is pressed down by the lower pressure roller 505 on the rear side, and then the edge of the leather sponge layer is pressed, and then the sewing machine A6 is operated, and then the folded edges on both sides of the leather sponge layer are sealed, and then the servo motor B602 is controlled to operate, and then the sewing machine B603 is driven by the crank connecting rod to move back and forth, and then the inner side of the sealed leather sponge layer transmitted at a uniform speed is sewn, and then the surface of the leather sponge layer is sewn with zigzag serrated stitches.

Claims

1. A sponge leather layer assembly device for automobile interior decoration, comprising: A vertical frame (1), wherein the front end of the vertical frame (1) is fixedly connected to a front frame (101), characterized in that a sponge roller (102) is installed on the top of the inner side of the vertical frame (1), a leather roller (103) is installed on the bottom of the inner side of the vertical frame (1), a roller frame A (104) and a roller frame B (106) are fixedly connected to the rear side of the vertical frame (1), a threaded rod is threadedly connected to the inner side of the roller frame A (104) and the roller frame B (106), a cross frame is rotatably connected to the bottom of the threaded rod, a cross roller (105) is rotatably connected to the inner side of the vertical frame (1), the cross roller (105) is located on the rear side of the roller shaft at the bottom of the roller frame A (104), and a clamping roller A is rotatably connected to the bottom of the cross frame of the roller frame B (106). (107), the inner side of the vertical frame (1) is rotatably connected to a clamping roller B (108), the clamping roller A (107) is located directly above the clamping roller B (108), and the inner side of the vertical frame (1) is rotatably connected to a tensioning roller; the top of the front frame (101) is fixedly connected to a servo motor A (2), the rear side of the servo motor A (2) is fixedly connected to an axis frame (201), the inner side of the axis frame (201) is rotatably connected to a transmission shaft (2011), the outer side of the transmission shaft (211) is equipped with three sets of bevel gears A (202), the bottom of the axis frame (201) is rotatably connected to a bevel gear B (203), and the bevel gear A (202) and the bevel gear B (203) are meshed for transmission.

2. The automotive interior sponge leather layer assembly device as claimed in claim 1, characterized in that: The bottom of the bevel gear B (203) is fixedly connected to a connecting rod A (204), the bottom of the connecting rod A (204) is rotatably connected to a sliding seat (205), and the bottom of the shaft frame (201) is rotatably connected to a connecting rod B (206).

3. The automotive interior decoration sponge leather layer assembly device as claimed in claim 2, characterized in that: A slide groove is provided on the inner side of the connecting rod B (206), and the slide seat (205) is slidably connected to the inner side of the slide groove. The number of connecting rods B (206) is set to three groups, and the front ends of the three groups of connecting rods B (206) are respectively installed with a rubber hose (207), a dust hood (208) and a scraper (209). A rubber barrel (7) and a dust collector (8) are provided on the side of the stand (1), and the rubber barrel (7) and the dust collector (8) are connected to the rubber hose (207) and the dust hood (208) through a pipeline.

4. The automotive interior sponge leather layer assembly device as claimed in claim 1, characterized in that: The rear side of the vertical frame (1) is fixedly connected to a middle frame (3); the top of the middle frame (3) is connected to an electric heating saddle plate A (301) via a spring rod; the top of the middle frame (3) is rotatably connected to a flip frame (302); the bottom of the flip frame (302) is installed with an electric heating saddle plate B (303).

5. The automotive interior decoration sponge leather layer assembly device as claimed in claim 4, characterized in that: A conveyor belt frame A (4) is arranged at the rear side of the middle frame (3), a conveyor belt is rotatably connected to the inner side of the conveyor belt frame A (4), a bevel gear D (402) is coaxially connected to the side of the rotating shaft of the conveyor belt frame A (4), and a bevel gear C (401) is rotatably connected to the outer side of the conveyor belt frame A (4), the bevel gear D (402) and the bevel gear C (401) are meshed for transmission, and a grooved tube (403) is coaxially connected to the top of the bevel gear C (401).

6. The automotive interior sponge leather layer assembly device as claimed in claim 5, characterized in that: The top of the conveyor belt frame A (4) is slidably connected to a conveyor belt frame B (405), the bottom of the conveyor belt frame B (405) is fixedly connected to an outer slide frame (404), the bottom of the conveyor belt frame A (4) is rotatably connected to a threaded rod, the threaded rod is threadedly connected to the outer slide frame (404), the conveyor belt frame B (405) and the conveyor belt frame A (4) have the same side bevel gear structure, the side bevel gear of the conveyor belt frame B (405) is coaxially connected to a hexagonal rod (406), and the hexagonal rod (406) is slidably connected to the inner side of the grooved tube (403).

7. The automotive interior sponge leather layer assembly device as claimed in claim 5, characterized in that: The conveyor belt frame A (4) is provided with a backstage (5) at the rear side, the top of the backstage (5) is fixedly connected to a door frame (501), the inner side of the door frame (501) is threadedly connected to a threaded shaft (502), and the bottom of the threaded shaft (502) is rotatably connected to a clamping frame (503).

8. The automotive interior decoration sponge leather layer assembly device as claimed in claim 7, characterized in that: The inner side vertical surface of the door frame (501) is rotatably connected to an inclined spherical roller (504), the rear side of the edge frame (503) is rotatably connected to a lower pressure roller (505), and the top of the rear stage (5) is fixedly connected to a support plate (506).

9. The automotive interior decoration sponge leather layer assembly device as claimed in claim 7, characterized in that: Two groups of sewing machines A (6) are fixedly connected to the left and right sides of the backstage (5); a slide rail (601) is fixedly connected to the top of the back side of the backstage (5); a sewing machine B (603) is slidably connected to the top of the slide rail (601); a servo motor B (602) is fixedly connected to the left side of the backstage (5); a crank connecting rod is connected to the top of the rotating shaft of the servo motor B (602); and a telescopic portion of the crank connecting rod is fixedly connected to the sewing machine B (603).

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