Pulling device for synthetic leather processing
By using a motor-driven cam and cylindrical block structure through a wire-pulling device to eliminate wrinkles on the surface of synthetic leather, the precision problem caused by wrinkles during the conveying process is solved, and the stability and effect of subsequent processing are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANSHOU FUJIAN SUPERFIBER TECH
- Filing Date
- 2025-08-04
- Publication Date
- 2026-05-26
AI Technical Summary
Synthetic leather can develop surface wrinkles during transport due to uneven tension and changes in flexibility, which can affect the accuracy of subsequent processing steps.
A pull-line device is used, in which a motor drives a cam and a cylindrical block to pull the synthetic leather up and down. Combined with the sliding connection between the slider and the groove, the stable movement of the fixed frame is ensured, eliminating wrinkles on the surface of the synthetic leather.
It effectively eliminates wrinkles on the surface of synthetic leather, improves the accuracy of subsequent pressing and printing clarity, and prevents misalignment or loss of patterns.
Smart Images

Figure CN224279245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of synthetic leather processing technology, specifically to a thread-pulling device for synthetic leather processing. Background Technology
[0002] Synthetic leather processing is a process of combining substrates such as fiber fabrics with materials such as polyurethane (PU) resin through specific techniques to create products similar to natural leather.
[0003] During the conveying process of existing synthetic leather through rollers, wrinkles are easily generated on the surface due to factors such as uneven conveyor belt tension, the flexibility of the synthetic leather itself, and changes in conveying speed. If the synthetic leather is pressed without treatment, uneven contact between the synthetic leather and the embossing roller will occur, resulting in problems such as misalignment and missing patterns.
[0004] Therefore, a thread-drawing device for synthetic leather processing is proposed to solve the problems mentioned above. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this utility model provides a thread-pulling device for synthetic leather processing, which can solve the problem of wrinkles generated during the synthetic leather conveying process affecting subsequent processing steps.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a load-bearing plate and several support plates fixedly connected to the upper part of the load-bearing plate. Each of the support plates has a roller 1 on its inner side, and synthetic leather is fitted between two adjacent roller 1s. A fixing frame is provided above the load-bearing plate, and at least two roller 2s are rotatably connected to the inner side of the fixing frame. The synthetic leather is fitted between two roller 2s. At least two fixing plates are fixedly connected to the inner side of the upper end of the fixing frame, and a cylindrical block is provided between two fixing plates. A cam is fitted to the outer side of the cylindrical block, and a motor 2 is provided at one end of the cam. A housing 2 is sleeved on the outer side of the motor 2.
[0007] Preferably, the output end of the second motor is through the second housing, and connecting plates are fixedly connected to both sides of the second housing, with the lower ends of the two connecting plates fixedly connected to the upper end of the load-bearing plate.
[0008] Preferably, each of the rollers is fixedly connected to a rotating shaft at both ends, the rotating shafts are rotatably connected to the inner side of the support plate, wherein at least two of the rotating shafts are through the support plate, each of the two rotating shafts is fixedly connected to a wheel at one end, each of the two wheels is fitted with a belt, and the two wheels are connected by belt drive.
[0009] Preferably, a housing is provided on one side of the load-bearing plate, and a motor is fixedly connected to the inside of the housing. The output end of the motor is fixedly connected to the wheel.
[0010] Preferably, the output end of the motor is through the housing, the motor is fixedly connected to the inner side of the housing, and an L-shaped plate is fixedly connected to the outer side of the housing, with one end of the L-shaped plate fixedly connected to the load-bearing plate.
[0011] Preferably, the output end of the second motor is fixedly connected to the cam, one end of the second motor is fixedly connected to the inner side of the housing, a fixing rod is provided through the middle of the cylindrical block, and the cylindrical block is fixedly connected to the fixing rod. Both ends of the fixing rod are fixedly connected to the inner side of the fixing plate.
[0012] Preferably, sliders are fixedly connected to both sides of the fixed frame, and grooves are provided on the outer sides of the two sliders. The sliders are slidably connected to the grooves, and the lower ends of the two grooves are fixedly connected to the load-bearing plate.
[0013] Compared with the prior art, the present invention provides a thread-drawing device for synthetic leather processing, which has the following advantages:
[0014] 1. The cam driven by motor 2 can be rotated to pull the synthetic leather up and down, thereby eliminating wrinkles on the surface of the synthetic leather and improving the accuracy of subsequent pressing.
[0015] By sliding the slider to the groove, the axial position of the fixed frame can be limited, preventing axial displacement of the fixed frame when it moves up and down, thus improving the stability of the structure. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall front view of the present invention;
[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the pushing mechanism structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the limiting method structure of this utility model.
[0020] In the diagram: 1. Load-bearing plate; 2. Support plate; 3. Roller 1; 4. Rotary wheel; 5. Motor 1; 6. Housing 1; 7. Belt; 8. Synthetic leather; 9. Fixing frame; 10. Roller 2; 11. Connecting plate; 12. Housing 2; 13. Motor 2; 14. Cam; 15. Fixing plate; 16. Cylindrical block; 17. Slider; 18. Slide groove. Detailed Implementation
[0021] 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.
[0022] Example:
[0023] Please see Figure 1 - Figure 4 The thread-pulling device for synthetic leather processing in this embodiment includes a load-bearing plate 1 and several support plates 2 fixedly connected to the upper end of the load-bearing plate 1. Rollers 3 are provided on the inner side of each of the support plates 2. Synthetic leather 8 is attached between two adjacent rollers 3. A fixed frame 9 is provided above the load-bearing plate 1. At least two rollers 10 are rotatably connected to the inner side of the fixed frame 9. Synthetic leather 8 is attached between the two rollers 10. At least two fixed plates 15 are fixedly connected to the inner side of the upper end of the fixed frame 9. A cylindrical block 16 is provided between the two fixed plates 15. A cam 14 is attached to the outer side of the cylindrical block 16. A motor 13 is provided at one end of the cam 14. A housing 12 is sleeved on the outer side of the motor 13.
[0024] The output end of motor 2 13 is connected through the housing 2 12. Both sides of housing 2 12 are fixedly connected to connecting plates 11, and the lower ends of the two connecting plates 11 are fixedly connected to the upper end of the load-bearing plate 1.
[0025] Roller 3 is fixedly connected to both ends of a rotating shaft, which is rotatably connected to the inner side of the support plate 2. At least two rotating shafts are through the support plate 2. One end of each of the two rotating shafts is fixedly connected to a wheel 4. A belt 7 is fitted on the outer side of each of the two wheels 4. The two wheels 4 are connected by a drive belt 7.
[0026] A box 6 is provided on one side of the load-bearing plate 1. A motor 5 is fixedly connected to the inside of the box 6. The output end of the motor 5 is fixedly connected to the wheel 4.
[0027] Among them, the rotation of the rotating wheel 4 by the motor 5, the synchronous rotation of the two rotating wheels 4 by the belt 7, and the rotation of the cam 14 by the motor 13 are all existing technologies, and therefore are not described in detail in this embodiment.
[0028] At this time, the motor 13 drives the rotating wheel 4 to rotate. When one of the rotating wheels 4 rotates, it drives the other rotating wheel 4 to rotate via the belt 7. When the rotating wheel 4 rotates, the roller 3 fixedly connected to the rotating wheel 4 will rotate along with it. By arranging several rollers 3 symmetrically in an up-down pattern, when the rollers 3 rotate, they push the synthetic leather 8 between the two rollers 3, thereby achieving the effect of transmission of the synthetic leather 8. When wrinkles occur on the surface of the synthetic leather 8 during the transmission process, the motor is activated. Machine 2 13, by fixing cam 14 to the output end of motor 2 13, when motor 2 13 rotates, it drives cam 14 to rotate synchronously. By fitting cam 14 against cylindrical block 16, cam 14 pushes cylindrical block 16 up and down reciprocally when rotating. By fixing the fixing component to cylindrical block 16 and fixing the fixing component to fixing plate 15, when cylindrical block 16 moves up and down, fixing frame 9 will move up and down with cylindrical block 16. By fitting the outer side of synthetic leather 8 against two Between two rollers 2 10, two rollers 2 10 are rotatably connected inside the fixed frame 9. When the rollers 2 10 are transmitting power to the synthetic leather 8, the fixed frame 9 pulls the synthetic leather 8 through the rollers 2 10. While the fixed frame 9 is pulling the synthetic leather 8 up and down reciprocatingly, the rotation and pressure of the rollers 2 10 cause the synthetic leather 8 to experience orderly stretching and flattening forces in the transmission path. This promotes the rearrangement of the leather surface fibers or molecular chains, thereby eliminating wrinkles and restoring a smooth state, thus achieving the goal of eliminating wrinkles on the surface of the synthetic leather 8. The effect is to prevent wrinkles on the surface of the synthetic leather 8 from causing uneven contact between the embossing roller and the leather surface, resulting in inconsistent embossed patterns, poor clarity, or even misalignment or missing patterns, thus improving printing accuracy. By connecting the output end of motor 5 to the housing 6, the operation of motor 5 is prevented from being affected by the housing 6. Sealing rings are provided at the connection between the output end of motor 5 and housing 6, as well as at the connection between motor 2 13 and housing 2 12, to prevent external moisture from entering the housing and damaging the motor.
[0029] The output end of motor 5 is connected through the housing 6. Motor 5 is fixedly connected to the inside of housing 6. An L-shaped plate is fixedly connected to the outside of housing 6. One end of the L-shaped plate is fixedly connected to the load-bearing plate 1.
[0030] The output end of motor 13 is fixedly connected to cam 14. One end of motor 13 is fixedly connected to the inside of housing 12. A fixing rod is provided through the middle of cylindrical block 16, and cylindrical block 16 is fixedly connected to fixing rod. Both ends of fixing rod are fixedly connected to the inside of fixing plate 15.
[0031] Both sides of the fixed frame 9 are fixedly connected to sliders 17. Each slider 17 has a groove 18 on its outer side. The sliders 17 and the grooves 18 are slidably connected. The lower ends of the two grooves 18 are fixedly connected to the load-bearing plate 1.
[0032] By fixing motor 5 to the inside of housing 6, the position of motor 5 can be fixed, preventing wobbling during rotation and improving the stability of the structure. By fixing the fixing rod to cylindrical block 16 and fixing both ends of the fixing rod to the inside of fixing plate 15, the position of cylindrical block 16 can be fixed. By fitting cam 14 to cylindrical block 16, when motor 13 drives cam 14 to rotate, when the protruding end of cam 14 contacts cylindrical block 16, cam 14 pushes cylindrical block 16 upwards. When the protruding part of cam 14 no longer contacts cylindrical block 16, cylindrical block 16 returns to its original downward position. The continuous rotation of wheel 14 can push the cylindrical block 16 up and down. By fixing two plates 15 to the inner side of the upper end of the fixed frame 9, when the cylindrical block 16 moves up and down, it will drive the fixed frame 9 to move. When the fixed frame 9 moves, it will pull the synthetic leather 8 through roller 10, thereby removing the wrinkles on the surface of the synthetic leather 8. By setting a slider 17 on the outside of the fixed frame 9 and sliding the slider 17 inside the slide groove 18, the axial position of the slider 17 can be limited by the slide groove 18, thereby limiting the axial position of the fixed frame 9, preventing the fixed frame 9 from wobbling left and right when moving up and down, and improving the stability of the fixed frame 9.
[0033] The working principle of the above embodiments is as follows:
[0034] In use, the rotation of motor 5 drives roller 3 to rotate, which in turn drives the synthetic leather 8. While the synthetic leather 8 is being driven, motor 213 is started, which drives cam 14 to rotate, which pulls the synthetic leather 8 up and down, thus eliminating wrinkles on the surface of the synthetic leather 8 and preventing wrinkles from affecting subsequent pressing processes.
[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.
[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 thread pulling device for synthetic leather processing, characterized by: The system includes a load-bearing plate (1) and several support plates (2) fixedly connected to the upper end of the load-bearing plate (1). Each of the support plates (2) is provided with a roller (3) on its inner side. A synthetic leather (8) is attached between two adjacent rollers (3). A fixed frame (9) is provided above the load-bearing plate (1). At least two rollers (10) are rotatably connected to the inner side of the fixed frame (9). The synthetic leather (8) is attached between the two rollers (10). At least two fixed plates (15) are fixedly connected to the inner side of the upper end of the fixed frame (9). A cylindrical block (16) is provided between the two fixed plates (15). A cam (14) is attached to the outer side of the cylindrical block (16). A motor (13) is provided at one end of the cam (14). A housing (12) is sleeved on the outer side of the motor (13).
2. The puller device for synthetic leather processing according to claim 1, characterized in that: The output end of the second motor (13) is through the second housing (12). Both sides of the second housing (12) are fixedly connected to connecting plates (11), and the lower ends of the two connecting plates (11) are fixedly connected to the upper end of the load-bearing plate (1).
3. The puller device for synthetic leather processing according to claim 1, characterized in that: Both ends of the roller (3) are fixedly connected to rotating shafts, which are rotatably connected to the inner side of the support plate (2). At least two of the rotating shafts are through the support plate (2). One end of each of the two rotating shafts is fixedly connected to a wheel (4), and a belt (7) is fitted on the outer side of each of the two wheels (4). Both wheels (4) are connected by belt (7) for transmission.
4. The puller device for synthetic leather processing according to claim 3, characterized in that: A box (6) is provided on one side of the load-bearing plate (1), and a motor (5) is fixedly connected to the inside of the box (6). The output end of the motor (5) is fixedly connected to the wheel (4).
5. The puller device for synthetic leather processing according to claim 4, characterized in that: The output end of the motor (5) is through the housing (6). The motor (5) is fixedly connected to the inside of the housing (6). An L-shaped plate is fixedly connected to the outside of the housing (6). One end of the L-shaped plate is fixedly connected to the load-bearing plate (1).
6. The thread-drawing device for synthetic leather processing according to claim 1, characterized in that: The output end of the second motor (13) is fixedly connected to the cam (14). One end of the second motor (13) is fixedly connected to the inner side of the housing (12). A fixing rod is provided through the middle of the cylindrical block (16), and the cylindrical block (16) is fixedly connected to the fixing rod. Both ends of the fixing rod are fixedly connected to the inner side of the fixing plate (15).
7. The thread-drawing device for synthetic leather processing according to claim 1, characterized in that: The fixed frame (9) is fixedly connected to two sliders (17) on both sides. The two sliders (17) are provided with grooves (18) on the outside. The sliders (17) and the grooves (18) are slidably connected. The lower ends of the two grooves (18) are fixedly connected to the load-bearing plate (1).