Double-sided leather bonding device for automobile seat
By using a servo motor-driven bidirectional threaded rod and sliding plate structure, combined with a heating device and pressure rollers, the problem of insufficient glue on the leather coating surface is solved, achieving uniform glue application and rapid drying of the leather, thus improving the bonding efficiency and quality of double-sided leather.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, insufficient adhesive on the leather coating surface leads to poor adhesion, and the undried adhesive is prone to dripping, affecting production efficiency and quality.
The system employs a servo motor-driven bidirectional threaded rod and sliding plate structure to ensure uniform glue application to the leather. A heating device accelerates glue drying, and a pressure roller and winding device eliminate wrinkles, achieving efficient bonding of double-sided leather.
It achieves uniform double-sided adhesive application and rapid drying of leather, improving bonding efficiency, eliminating wrinkles, and enhancing production quality and efficiency.
Smart Images

Figure CN223972289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather processing technology, specifically to a double-sided leather bonding device for automobile seats. Background Technology
[0002] Currently, leather is animal hide that has undergone physical and chemical processing such as hair removal and tanning, resulting in a modified, less perishable material. Leather is composed of naturally occurring protein fibers tightly woven in three-dimensional space, with a unique grain layer on its surface, possessing a natural grain and luster, and a comfortable feel. The announcement number is: CN. Patent 210100958U discloses a double-sided leather bonding device for automotive seats, relating to the field of automotive seats. It includes a take-up roller, an adhesive applicator, and a pressing device. The take-up roller comprises a first take-up roller, a second take-up roller, and a third take-up roller, all supported by a bracket and rotatably engaged with the bracket. The adhesive applicator consists of an adhesive storage tank and an adhesive applicator assembly located within the tank. The adhesive applicator assembly comprises rotating rollers arranged side-by-side within the tank, rotatably engaged with the side wall of the tank, with the lower end of the rotating rollers immersed in the adhesive within the tank. The second take-up roller is located at the lower right of the tank. The pressing device consists of a drying chamber and a pressing mechanism located within the drying chamber. This invention can efficiently bond two pieces of leather together to form double-sided leather, improving the bonding efficiency of double-sided leather and reducing production costs.
[0003] The above solution has the following shortcomings in actual operation: The above solution only applies glue to the bonding surface of a piece of leather, and the glued surface is always facing downwards after application, making it easy for the undried glue to drip off, resulting in too little glue on the leather bonding surface, which affects the bonding. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a double-sided leather bonding device for car seats, which has the advantage of bonding leather after applying adhesive to both sides, and avoids the problem of insufficient adhesive on the leather coating surface affecting bonding.
[0005] To achieve the goal of bonding leather after applying adhesive to both sides, this utility model provides the following technical solution:
[0006] A double-sided leather bonding device for automotive seats includes a main board, a square box fixedly connected to the top of the main board, a partition fixedly connected to the inner wall of the square box, and an adhesive application component installed on the side wall of the main board for applying adhesive to the leather bonding surfaces. The device also includes an adhesive bonding component for bonding the leather.
[0007] The glue application assembly includes a glue storage box, which is fixedly installed on the side wall of the main board. Two sets of glue application rollers are rotatably connected to the side wall of the glue storage box. Multiple sets of holes are opened on the side wall of the glue application rollers, and the glue application rollers and the glue storage box are connected. A first servo motor is fixedly connected to the top of the main board. A first bidirectional threaded rod is fixedly connected to the output end of the first servo motor. A first sliding plate is threadedly connected to both sides of the first bidirectional threaded rod. Multiple sets of first pressure rollers are rotatably connected to the side wall of the first sliding plate located on the upper and lower sides of the glue application rollers. A pressure pump is fixedly connected to the side wall of the glue storage box, and a glue inlet pipe is fixedly connected to the top of the glue storage box.
[0008] According to some embodiments, the bonding assembly includes a heating box, which is fixedly installed on the side wall of the main board. A second servo motor is fixedly connected to the top of the main board. A second bidirectional threaded rod is fixedly connected to the output end of the second servo motor. A second sliding plate is threadedly connected to both sides of the second bidirectional threaded rod in the inner cavity of the heating box. Multiple sets of second pressure rollers are rotatably connected to the side walls of the second sliding plates. A heating wire is fixedly connected to the inner wall of the heating box.
[0009] According to some embodiments, a third servo motor is fixedly connected to the side wall of the main board, a rotating shaft is fixedly connected to the output end of the third servo motor, a take-up roller is slidably connected to the side wall of the rotating shaft, a nut is threadedly connected to the side wall of the rotating shaft, a first connecting roller and a second connecting roller are rotatably connected to the side wall of the main board respectively, a third sliding block and a fourth sliding block are slidably connected to the side wall of the main board above the first connecting roller and the second connecting roller, two sets of threaded bolts are threadedly connected to the top of the main board, the threaded bolts are rotatably connected to the third sliding block and the fourth sliding block respectively, and an overlap roller is rotatably connected to the side wall of the main board.
[0010] Beneficial effects
[0011] This utility model provides a double-sided leather bonding device for automobile seats, which has the following beneficial effects:
[0012] (1) The double-sided leather bonding device for car seats uses a first servo motor to drive the first bidirectional threaded rod to rotate, so that the first sliding plates on both sides of the first bidirectional threaded rod move towards the middle at the same time, and the first pressure roller presses the two leathers onto the surface of the glue roller, so that when the leather is being transported, the glue roller can apply glue evenly to the bonding surface of the leather through the holes, which is convenient for subsequent leather bonding.
[0013] (2) The double-sided leather bonding device for car seats rotates the threaded bolt to make the third pressure roller slide down and press the two leathers onto the top of the first connecting roller and the second connecting roller respectively. When the leather is conveyed, the rotating third pressure roller, the first connecting roller and the second connecting roller can eliminate the wrinkles on the surface of the leather, which is convenient for subsequent gluing of the leather. Attached Figure Description
[0014] Figure 1This is a front view of the device of this utility model;
[0015] Figure 2 This is a schematic diagram of the rear structure of the device of this utility model;
[0016] Figure 3 This is a schematic diagram (front view) of the structure of the device of this utility model;
[0017] Figure 4 This is a structural schematic diagram (side section) of the heating box of this utility model;
[0018] Figure 5 This is a schematic diagram of the structure of the winding roller of this utility model.
[0019] In the diagram: 1. Main board; 101. Square box; 102. Partition; 2. Glue application assembly; 201. Glue storage box; 202. Glue application roller; 203. Hole; 204. First servo motor; 205. First bidirectional threaded rod; 206. First pressure roller; 207. Pressure pump; 3. Adhesion assembly; 301. Heating box; 302. Second servo motor; 303. Second bidirectional threaded rod; 304. Second pressure roller; 305. Heating wire; 4. Third servo motor; 401. Rotating shaft; 402. Take-up roller; 403. Nut; 404. First connecting roller; 405. Second connecting roller; 406. Third pressure roller; 407. Threaded bolt; 408. Overlapping roller. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Reference Figures 1-5 A double-sided leather bonding device for car seats includes a main board 1, a square box 101 fixedly connected to the top of the main board 1, a partition 102 fixedly connected to the inner wall of the square box 101, an adhesive application component 2 installed on the side wall of the main board 1 for applying adhesive to the leather bonding surface, and an adhesive bonding component 3 installed on the side wall of the main board 1 for bonding the leather. The device also includes:
[0022] The glue application assembly 2 includes a glue storage box 201, which is fixedly installed on the side wall of the main board 1. Two sets of glue application rollers 202 are rotatably connected to the side wall of the glue storage box 201. Multiple sets of holes 203 are opened on the side wall of the glue application rollers 202, and the glue application rollers 202 and the glue storage box 201 are connected. A first servo motor 204 is fixedly connected to the top of the main board 1. A first bidirectional threaded rod 205 is fixedly connected to the output end of the first servo motor 204. A first sliding plate is threadedly connected to both sides of the first bidirectional threaded rod 205. Multiple sets of first pressure rollers 206 are rotatably connected to the side walls of the first sliding plates located on the upper and lower sides of the glue application rollers 202.
[0023] A pressure pump 207 is fixedly connected to the side wall of the glue storage box 201, and a glue inlet pipe is fixedly connected to the top of the glue storage box 201.
[0024] It should be noted that: the first servo motor 204 drives the first bidirectional threaded rod 205 to rotate, so that the first sliding plates on both sides of the first bidirectional threaded rod 205 move towards the middle at the same time. The first pressure roller 206 presses the two pieces of leather onto the surface of the glue-applying roller 202, so that when the leather is being transported, the glue-applying roller 202 can apply glue evenly to the bonding surface of the leather through the holes 203. The pressure pump 207 can transport the glue in the inner cavity of the glue storage box 201 to the inner cavity of the glue-applying roller 202. In addition, the square box 101 can separate the two rolls of leather using the partition 102.
[0025] Reference Figures 1-5 The bonding component 3 includes a heating box 301, which is fixedly installed on the side wall of the main board 1, and a second servo motor 302 is fixedly connected to the top of the main board 1.
[0026] The output end of the second servo motor 302 is fixedly connected to the second bidirectional threaded rod 303, and the two side walls of the second bidirectional threaded rod 303 located in the inner cavity of the heating box 301 are threadedly connected to the second sliding plate.
[0027] The second sliding plate sidewall is rotatably connected to multiple sets of second pressure rollers 304, and the heating box 301 inner wall is fixedly connected to heating wires 305;
[0028] It should be noted that: the second servo motor 302 drives the second bidirectional threaded rod 303 to rotate, causing the second sliding plate to move towards the center at the same time. The second pressure roller 304 presses the leather, so that the glued surfaces of the leather are in contact with each other. In addition, the heating wire 305 can heat the inner cavity of the heating box 301, so that the glue dries quickly and facilitates the adhesion of the leather.
[0029] Reference Figures 1-5 A third servo motor 4 is fixedly connected to the side wall of the main board 1. A rotating shaft 401 is fixedly connected to the output end of the third servo motor 4. A take-up roller 402 is slidably connected to the side wall of the rotating shaft 401. A nut 403 is threadedly connected to the side wall of the rotating shaft 401.
[0030] The first connecting roller 404 and the second connecting roller 405 are rotatably connected to the side wall of the main board 1, and the third sliding block and the fourth sliding block are slidably connected to the side wall of the main board 1 above the first connecting roller 404 and the second connecting roller 405.
[0031] The third and fourth sliding blocks are rotatably connected to the side walls of the third pressure roller 406, and the top of the main board 1 is threadedly connected to two sets of threaded bolts 407.
[0032] The threaded bolt 407 is rotatably connected to the third sliding block and the fourth sliding block respectively, and the side wall of the main board 1 is rotatably connected to the roller 408;
[0033] It should be noted that: the take-up roller 402 can be fixed to the side wall of the rotating shaft 401 by using the nut 403, and the third servo motor 4 can be driven to rotate the take-up roller 402, thereby completing the winding of the glued leather and driving the conveying of two leathers at the same time. Rotating the threaded bolt 407 can cause the third pressure roller 406 to slide down, pressing the two leathers tightly on the top of the first connecting roller 404 and the second connecting roller 405 respectively. When the leather is conveyed, wrinkles on the surface of the leather can be eliminated. The overlapping roller 408 can restrict the position of one leather, so that the leather can enter the glue application assembly 2 from the top and bottom respectively.
[0034] Operation method: The take-up roller 402 can be fixed to the side wall of the rotating shaft 401 by using the nut 403. The third servo motor 4 can be driven to rotate the take-up roller 402, thereby completing the leather take-up and driving the conveying of two leathers at the same time. Rotating the threaded bolt 407 can make the third pressure roller 406 slide down, pressing the two leathers tightly on the top of the first connecting roller 404 and the second connecting roller 405 respectively. When the leather is conveyed, wrinkles on the surface of the leather can be eliminated. The overlapping roller 408 can restrict the position of one leather, so that the leather can enter the glue application assembly 2 from the top and bottom respectively.
[0035] The first servo motor 204 drives the first bidirectional threaded rod 205 to rotate, causing the first sliding plates on both sides of the first bidirectional threaded rod 205 to move towards the center simultaneously. The first pressure roller 206 presses the two pieces of leather evenly onto the surface of the glue-applying roller 202, so that when the leather is being transported, the glue-applying roller 202 can evenly apply glue to the bonding surface of the leather through the holes 203. The pressure pump 207 can transport the glue in the inner cavity of the glue storage box 201 to the inner cavity of the glue-applying roller 202. The second servo motor 302 drives the second bidirectional threaded rod 303 to rotate, causing the second sliding plate to move towards the center simultaneously. The second pressure roller 304 presses the leather tightly, so that the glue-applying surfaces of the leather are in contact with each other. In addition, the heating wire 305 can heat the inner cavity of the heating box 301, so that the glue dries quickly and facilitates the adhesion of the leather.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A double-faced leather bonding device for car seats comprising a main plate (1), characterized in that: The top of the main plate (1) is fixedly connected with a square box (101), the inner wall of the square box (101) is fixedly connected with a partition plate (102), the side wall of the main plate (1) is provided with a gluing assembly (2), the gluing assembly (2) is used for gluing the leather bonding surface, the side wall of the main plate (1) is provided with a bonding assembly (3), the bonding assembly (3) is used for sticking leather, and the gluing assembly (2) comprises a glue storage box (201) fixedly installed on the side wall of the main plate (1), the side wall of the glue storage box (201) is rotatably connected with two groups of gluing rollers (202), a plurality of holes (203) are formed in the side wall of the gluing roller (202), and the gluing roller (202) is in communication with the glue storage box (201), a first servo motor (204) is fixedly connected to the top of the main plate (1), a first bidirectional threaded rod (205) is fixedly connected to the output end of the first servo motor (204), and first sliding plates are threadedly connected to the side walls on the left and right of the first bidirectional threaded rod (205). A plurality of first pressing rollers (206) are rotatably connected to the side walls of the first sliding plates located on the upper and lower sides of the gluing roller (202). The side wall of the glue storage box (201) is fixedly connected with a pressure pump (207), and the top of the glue storage box (201) is fixedly connected with a glue inlet pipe.
2. The apparatus for adhering double-faced leather to a car seat according to claim 1, wherein: The bonding assembly (3) comprises a heating box (301) fixedly installed on the side wall of the main plate (1), and the top of the main plate (1) is fixedly connected with a second servo motor (302).
3. The apparatus for adhering double-faced leather to a car seat according to claim 2, wherein: The output end of the second servo motor (302) is fixedly connected with a second bidirectional threaded rod (303), and the side walls on the left and right of the second bidirectional threaded rod (303) in the inner cavity of the heating box (301) are threadedly connected with second sliding plates.
4. The apparatus for adhering double-faced leather to a car seat according to claim 3, wherein: The side wall of the second sliding plate is rotatably connected with a plurality of second pressing rollers (304), and the inner wall of the heating box (301) is fixedly connected with a heating wire (305).
5. The apparatus for adhering double-faced leather to a car seat according to claim 4, wherein: The side wall of the main plate (1) is fixedly connected with a third servo motor (4), the output end of the third servo motor (4) is fixedly connected with a rotating shaft (401), the side wall of the rotating shaft (401) is slidably connected with a winding roller (402), and the side wall of the rotating shaft (401) is threadedly connected with a nut (403).
6. The apparatus for adhering double-faced leather to a car seat according to claim 5, wherein: The side wall of the main plate (1) is rotatably connected with a first connecting roller (404) and a second connecting roller (405), the side wall of the main plate (1) is slidably connected with a third sliding block and a fourth sliding block above the first connecting roller (404) and the second connecting roller (405).
7. The apparatus for adhering double-faced leather to a car seat according to claim 6, wherein: The side walls of the third sliding block and the fourth sliding block are rotatably connected with third pressing rollers (406), and the top of the main plate (1) is threadedly connected with two groups of threaded bolts (407).
8. The apparatus for adhering double-faced leather to a car seat according to claim 7, wherein: The threaded bolts (407) are rotatably connected with the third sliding block and the fourth sliding block respectively, and the side wall of the main plate (1) is rotatably connected with a lap roller (408).
9. The apparatus for adhering double-faced leather to a car seat according to claim 8, wherein:
Citation Information
Patent Citations
Double-sided leather bonding device for automobile seat
CN210100958U