Automobile seat leather high-precision cutting device

Abstract

The application relates to the technical field of leather cutting, in particular to a high-precision cutting device for automobile seat leather, which comprises a cutting table, a moving support, a lifting oil cylinder, a connecting rod, a fixing seat, a movable frame and a cutting body. The high-precision cutting device for automobile seat leather has the advantages that the flexible clamping of the leather edge is realized through the limiting part composed of rubber clamping blocks and handle screws, rigid fixing during the downward pressing of the cutting body is combined, the warping or displacement of the leather during cutting is double-inhibited, the transverse movement of the moving support is driven by the stepping motor in cooperation with the threaded rod, the precise control of the cutting width is realized, in addition, the guide rail structure is formed by the fixing seat and the movable frame, the lateral force during the cutting process is resisted, the cutting surface burrs caused by the shaking of the cutter head are avoided, and through the double effects of the local clamping of the limiting part and the overall pressing of the cutting body, the leather deformation caused by the excessive pressing of the whole is prevented, and the peripheral area of the cutting line is fully fixed.

Description

Technical Field

[0001] This application relates to the field of leather cutting technology, and in particular to a high-precision cutting device for automotive seat leather. Background Technology

[0002] Car seats can be categorized by shape into split seats and bench seats; by function into fixed seats, removable seats, and adjustable seats; and by the number of occupants into single, double, and multi-person seats. Because car seat covers have irregular structures, they require multiple pieces of leather of different shapes to be pieced together. Therefore, the leather needs to be cut. However, due to the soft texture of leather, wrinkles easily occur during processing, leading to deformation after cutting and affecting product quality.

[0003] A search revealed that CN215517493U discloses a leather cutting device for producing car seat covers. The device involves rolling up leather and placing it into a raw material bin. The leather is then pulled out from the outlet and placed onto a fourth rotating shaft in a waste bin, where it is hooked. A fan and motor are started, and the motor drives a pulley via a second rotating shaft. The pulley drives a conveyor belt, which in turn drives another pulley, causing a third rotating shaft to rotate. This third shaft drives a second bevel gear, which in turn drives a first bevel gear, activating the cutter for cutting. A pressure roller in a wrinkle-removing box flattens and wrinkles the leather. The cut leather is then conveyed by the conveyor belt to a location below the fan, where it is blown into a finished product bin. Scrap pieces are rolled up in the waste bin.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist that need improvement: the aforementioned device only performs a single cut and does not provide auxiliary support at the cut surface, resulting in a poor limiting effect on the leather. Consequently, the position cannot be effectively controlled when cutting the leather, affecting the cutting quality of the car seat leather. Utility Model Content

[0005] This application provides a high-precision cutting device for automotive seat leather to improve the following technical problem: the above-mentioned device only performs a single cut and does not provide auxiliary support at the cut surface, resulting in poor limiting effect on the leather, which leads to the inability to effectively control the position when cutting it, thus affecting the cutting quality of automotive seat leather.

[0006] This application provides a high-precision cutting device for automotive seat leather, employing the following technical solution:

[0007] A high-precision cutting device for automotive seat leather includes a cutting table, a movable bracket, a lifting cylinder, a connecting rod, a fixed seat, a movable frame, and a cutting machine body. The movable bracket is slidably sleeved on both sides of the cutting table, the lifting cylinder is threadedly connected to the top of the movable bracket, the bottom of the connecting rod is fixedly connected to one side surface of the fixed seat, the movable frame is slidably sleeved on the outside of the fixed seat, the cutting machine body is threadedly connected to the outside of the movable frame, and a limiting part is also provided on the opposite side of the movable bracket.

[0008] The cutting table provides a flat work surface. The movable support moves along both sides of the cutting table via a sliding sleeve structure, driving the overall cutting mechanism to be positioned laterally to accommodate leather of different sizes. The lifting cylinder hydraulically drives the connecting rod to rise and fall, dynamically adjusting the cutting height and ensuring constant blade pressure. The connecting rod rigidly connects the fixed seat and the lifting cylinder. The fixed seat serves as the sliding track base of the movable frame, ensuring the lateral movement stability of the cutting machine body. The cutting machine body, in conjunction with the limiting part, presses down the leather edge to prevent material warping during cutting.

[0009] In one feasible technical solution of this application, stepper motors and threaded rods are also provided on both sides of the cutting table. The motor shaft of the stepper motor is fixedly connected to one end of the threaded rod through a coupling. The threaded rod is threadedly connected to the inner bottom of the movable bracket.

[0010] In one feasible technical solution of this application, the inner side of the movable frame is further provided with a drive motor, a locking gear and a rack seat. The motor shaft of the drive motor is fixedly connected to the middle part of the locking gear through a coupling. The rack seat is fixedly connected to the inner side of the fixed seat. The outer teeth of the locking gear mesh with the rack seat.

[0011] In one feasible technical solution of this application, the limiting part includes a handle screw, a rubber clamp and a fixing plate. The fixing plate is fixedly connected to the top of the cutting table, the handle screw is threaded onto the top of the fixing plate, and the rubber clamp is slidably sleeved inside the fixing plate.

[0012] In one feasible technical solution of this application, the bottom of the movable bracket is provided with a threaded groove that matches the size of the threaded rod.

[0013] In one feasible technical solution of this application, the limiting part is provided in two sets, and the two sets of limiting parts are symmetrically distributed on the top of the cutting table.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This device uses a limiting part consisting of rubber clamps and a handle screw to flexibly hold the leather edge, combined with the rigid fixation of the cutting machine body when it presses down, to doubly suppress warping or displacement of the leather during cutting. A stepper motor, in conjunction with a threaded rod, drives the moving bracket to move laterally, achieving precise control of the cutting width. In addition, the fixed base and the movable frame form a guide rail structure to resist lateral forces during the cutting process and avoid burrs on the cut surface caused by blade vibration. The lifting cylinder automatically adjusts the downward pressure according to the leather thickness, avoiding the pressure attenuation problem caused by fatigue in traditional spring clamping. With the dual effect of local clamping by the limiting part and global clamping by the cutting machine body, it prevents excessive overall pressure from deforming the leather and ensures that the area around the cutting line is fully fixed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the high-precision cutting device for automotive seat leather according to an embodiment of this application.

[0018] Figure 2 This is a top view of the cutting table in an embodiment of this application.

[0019] Figure 3 This is a disassembled diagram of the fixed base and the movable frame in the embodiments of this application.

[0020] Figure 4 This is a distribution diagram of the threaded grooves in the embodiments of this application.

[0021] Figure 5 This is a cross-sectional view of the limiting part in an embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 11. Cutting table; 12. Movable support; 13. Lifting cylinder; 14. Connecting rod; 15. Fixed seat; 16. Movable frame; 17. Cutting machine body; 2. Limiting part; 21. Handle screw; 22. Rubber clamp; 23. Fixing plate; 3. Stepper motor; 4. Threaded rod; 5. Drive motor; 6. Locking gear; 7. Rack seat; 8. Threaded groove. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses a high-precision cutting device for automotive seat leather. (Refer to...) Figures 1 to 5 The high-precision cutting device for automotive seat leather includes a cutting table 11, a movable bracket 12, a lifting cylinder 13, a connecting rod 14, a fixed seat 15, a movable frame 16, and a cutting machine body 17. The movable bracket 12 is slidably sleeved on both sides of the cutting table 11, the lifting cylinder 13 is threadedly connected to the top of the movable bracket 12, the bottom of the connecting rod 14 is fixedly connected to one side surface of the fixed seat 15, the movable frame 16 is slidably sleeved on the outside of the fixed seat 15, and the cutting machine body 17 is threadedly connected to the outside of the movable frame 16. A limiting part 2 is also provided on the opposite side of the movable bracket 12.

[0028] The cutting table 11 provides a flat work surface. The movable support 12 moves along both sides of the cutting table 11 through a sliding sleeve structure, driving the overall cutting mechanism to be positioned laterally to adapt to different sizes of leather. The lifting cylinder 13 is used to hydraulically drive the connecting rod 14 to lift and lower, dynamically adjusting the cutting height and ensuring constant blade pressure. The connecting rod 14 rigidly connects the fixed seat 15 to the lifting cylinder 13. The fixed seat 15 serves as the sliding track base of the movable frame 16, ensuring the lateral movement stability of the cutting machine body 17. The cutting machine body 17, in conjunction with the limiting part 2, presses the leather edge to prevent the material from warping during cutting.

[0029] Stepper motors 3 and threaded rods 4 are also provided on both sides of the cutting table 11. The motor shaft of the stepper motor 3 is fixedly connected to one end of the threaded rod 4 through a coupling. The threaded rod 4 is threadedly connected to the bottom inner side of the movable bracket 12.

[0030] The inner side of the movable frame 16 is also provided with a drive motor 5, a locking gear 6 and a rack seat 7. The motor shaft of the drive motor 5 is fixedly connected to the middle of the locking gear 6 through a coupling. The rack seat 7 is fixedly connected to the inner side of the fixed seat 15. The outer teeth of the locking gear 6 mesh with the rack seat 7.

[0031] The limiting part 2 includes a handle screw 21, a rubber clamp 22 and a fixing plate 23. The fixing plate 23 is fixedly connected to the top of the cutting table 11. The handle screw 21 is threaded onto the top of the fixing plate 23 and the rubber clamp 22 is slidably sleeved inside the fixing plate 23.

[0032] The bottom of the movable bracket 12 has a threaded groove 8 that matches the size of the threaded rod 4.

[0033] Two sets of limiting parts 2 are provided, and the two sets of limiting parts 2 are symmetrically distributed on the top of the cutting table 11.

[0034] The usage process of the high-precision cutting device for automotive seat leather in this embodiment is roughly as follows:

[0035] Lay the car seat leather to be cut flat on the cutting table 11, ensuring its surface is wrinkle-free. Rotate the handle screw 21 to drive the rubber clamp 22 to slide along the inside of the fixing plate 23 until it clamps the edge of the leather. Since the limiting part 2 is symmetrically arranged in two sets, it can fix both sides of the leather at the same time, preventing deviation or warping during cutting. For lateral positioning, start the stepper motor 3 to drive the threaded rod 4 to rotate. Since the threaded rod 4 engages with the threaded groove 8 at the bottom of the moving bracket 12, the moving bracket 12 slides synchronously along both sides of the cutting table 11, driving the entire cutting mechanism to move laterally to meet the cutting needs of leather of different widths. For height adjustment, start the lifting cylinder 13 to raise and lower the connecting rod 14 through hydraulic drive, thereby adjusting the height of the fixing seat 15 and the cutting machine body 17. Dynamically adjust the cutting pressure according to the thickness of the leather to ensure that the blade always contacts the leather with constant pressure, avoiding cuts that are too deep or too shallow. During machine body adjustment, the drive motor 5 is started, driving the locking gear 6 to rotate. Since the locking gear 6 meshes with the rack seat 7, the movable frame 16 slides stably along the fixed seat 15, thereby precisely controlling the longitudinal position of the cutting machine body 17 to achieve high-precision straight or curved cutting. After confirming the cutting path is correct, the cutting machine body 17 is started for cutting. During the cutting process, the rubber clamp 22 continuously provides edge limiting to prevent leather displacement, while the lifting cylinder 13 maintains constant pressure to ensure a smooth, burr-free cut. After cutting is completed, the handle screw 21 is rotated in the opposite direction to loosen the rubber clamp 22, and the finished leather can be removed.

[0036] The beneficial technical effects of the high-precision cutting device for automotive seat leather in this application embodiment are roughly as follows:

[0037] This device uses a limiting part 2, composed of a rubber clamp 22 and a handle screw 21, to flexibly clamp the edge of the leather. Combined with the rigid fixation of the cutting machine body 17 when it presses down, it effectively suppresses warping or displacement of the leather during cutting. A stepper motor 3, in conjunction with a threaded rod 4, drives the moving bracket 12 to move laterally, achieving precise control of the cutting width. In addition, the fixed base 15, together with the movable frame 16, forms a guide rail structure to resist lateral forces during the cutting process and avoid burrs on the cut surface caused by blade vibration. The lifting cylinder 13 automatically adjusts the downward pressure according to the leather thickness, avoiding the pressure attenuation problem caused by fatigue in traditional spring clamping. With the combined effect of local clamping by the limiting part 2 and global clamping by the cutting machine body 17, it prevents excessive overall pressure that could deform the leather and ensures that the area around the cutting line is fully fixed.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-precision cutting device for automotive seat leather, characterized in that, The machine includes a cutting table (11), a movable support (12), a lifting cylinder (13), a connecting rod (14), a fixed seat (15), a movable frame (16), and a cutting machine body (17). The movable support (12) is slidably sleeved on both sides of the cutting table (11). The lifting cylinder (13) is threadedly connected to the top of the movable support (12). The bottom of the connecting rod (14) is fixedly connected to one side surface of the fixed seat (15). The movable frame (16) is slidably sleeved on the outside of the fixed seat (15). The cutting machine body (17) is threadedly connected to the outside of the movable frame (16). A limiting part (2) is also provided on the opposite side of the movable support (12). The cutting table (11) is used to provide a flat work surface. The movable bracket (12) moves along both sides of the cutting table (11) through a sliding sleeve structure, driving the overall cutting mechanism to be positioned laterally to adapt to different sizes of leather. The lifting cylinder (13) is used to hydraulically drive the connecting rod (14) to lift and lower, dynamically adjust the cutting height, and ensure constant blade pressure. The connecting rod (14) rigidly connects the fixed seat (15) and the lifting cylinder (13). The fixed seat (15) serves as the sliding track base of the movable frame (16) to ensure the lateral movement stability of the cutting machine body (17). The cutting machine body (17) cooperates with the limiting part (2) to press the leather edge and prevent the material from warping during cutting.

2. The high-precision cutting device for automotive seat leather according to claim 1, characterized in that, Stepper motors (3) and threaded rods (4) are also provided on both sides of the cutting table (11). The motor shaft of the stepper motor (3) is fixedly connected to one end of the threaded rod (4) through a coupling. The threaded rod (4) is threadedly connected to the bottom inner side of the movable bracket (12).

3. The high-precision cutting device for automotive seat leather according to claim 1, characterized in that, The inner side of the movable frame (16) is also provided with a drive motor (5), a locking gear (6) and a rack seat (7). The motor shaft of the drive motor (5) is fixedly connected to the middle part of the locking gear (6) through a coupling. The rack seat (7) is fixedly connected to the inner side of the fixed seat (15). The outer teeth of the locking gear (6) mesh with the rack seat (7).

4. The high-precision cutting device for automotive seat leather according to claim 1, characterized in that, The limiting part (2) includes a handle screw (21), a rubber clamp (22) and a fixing plate (23). The fixing plate (23) is fixedly connected to the top of the cutting table (11). The handle screw (21) is threaded onto the top of the fixing plate (23). The rubber clamp (22) is slidably sleeved inside the fixing plate (23).

5. The high-precision cutting device for automotive seat leather according to claim 2, characterized in that, The bottom of the movable bracket (12) is provided with a threaded groove (8) that is adapted to the size of the threaded rod (4).

6. The high-precision cutting device for automotive seat leather according to claim 1, characterized in that, The limiting part (2) is provided in two sets, and the two sets of limiting parts (2) are symmetrically distributed on the top of the cutting table (11).

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