Leather splitting machine

The splitting blade is driven to move up and down by a transmission component and a worm gear system, and the splitting blade is fixed by a fixing mechanism. This solves the problem of uneven leather splitting and achieves high-precision and uniform leather splitting, which can meet the processing needs of different types of leather.

CN224243110UActive Publication Date: 2026-05-15ZHEJIANG HONGBEN LEATHER CO LTD
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Patent Information

Application Number
CN202521051357.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2026-05-15
Estimated Expiration
2035-05-27

AI Technical Summary

Technical Problem

Existing leather splitting machines suffer from inconsistent precision in processing leathers with uneven splitting and varying thicknesses.

Method used

The system employs a transmission component in conjunction with a motor-driven worm gear system and lead screw structure. The cutting blade on the movable block moves up and down, while the cutting blade is fixed by a fixing mechanism, ensuring the stability of the cutting blade in both horizontal and vertical directions and achieving precise cutting.

Benefits of technology

It improves the precision and uniformity of leather splitting, enhances the equipment's adaptability to different types of leather, and ensures splitting quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of leather processing, and discloses a leather splitting machine which comprises a base, a conveying assembly is installed in the middle of the top wall of the base, access doors are arranged at the left end and the right end of the middle of the front side of the outer wall of the base, and stand columns are fixedly connected to the front side and the rear side of the outer wall of the base. A motor is arranged on the lower middle portion of the rear side of the outer wall of the stand column, a rotating shaft is fixedly connected to the output end of the motor, worms are fixedly connected to the front end and the rear end of the outer wall of the rotating shaft, worm wheels are connected to the left sides of the outer walls of the worms in an engaged mode, and lead screws are fixedly connected to the middles of the top walls of the worm wheels. According to the leather splitting machine, leather is conveyed into a splitting area through the conveying assembly, the motor drives the rotating shaft to rotate, the rotating shaft drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the transmission lead screw to rotate, the lead screw drives the movable block to slide in the first sliding groove in the stand column, and the leather splitting precision and uniformity are improved through vertical movement of the splitting knife on the movable block.
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Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, and in particular to a leather splitting machine. Background Technology

[0002] A leather splitting machine is a specialized piece of equipment used in the leather processing industry. Through mechanical devices and a cutting tool system, it precisely splits a whole sheet or block of leather into two or more layers according to specific thickness requirements. This satisfies the needs of different leather product manufacturers for leather thickness, texture, and other aspects, thereby improving leather utilization, reducing production costs, and enriching the variety and quality of leather products.

[0003] A search revealed Chinese Patent Publication No. CN218811813U, which discloses a splitting machine for processing leather, relating to the field of leather processing technology. Specifically, it includes an operating table with a cutting blade assembly mounted on its top. A conveying device is located on the side of the operating table near the cutting blade assembly. A second U-shaped plate is positioned above the conveying device, and at least two hydraulic cylinders are vertically mounted on the top of the second U-shaped plate. The hydraulic cylinders are connected to both sides of the conveying device via the first U-shaped plate. In use, the hydraulic cylinders push the pressure block towards the leather for compression and fixation. Driven by a lead screw, a moving plate moves a scraper against the leather surface, smoothing the leather. The movement of the moving block within the groove, combined with the action of the side rollers, allows for subsequent flattening and limiting of the smoothed leather during feeding. This eliminates manual labor and reduces the risk of employee injury. However, the splitting accuracy is unstable, especially for leather with uneven thickness, where uneven splitting is likely to occur. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a leather splitting machine, which aims to improve the problem of uneven leather splitting in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a leather splitting machine, comprising a base, a transmission component installed in the middle of the top wall of the base, inspection doors provided at both the left and right ends of the middle front side of the outer wall of the base, columns fixedly connected to the front and rear sides of the outer wall of the base, a motor provided in the lower middle rear side of the outer wall of the column, a rotating shaft fixedly connected to the output end of the motor, a worm gear fixedly connected to the front and rear ends of the outer wall of the rotating shaft, a worm wheel meshing with the left side of the outer wall of the worm gear, a lead screw fixedly connected to the middle of the top wall of the worm wheel, a movable block threadedly connected to the middle of the outer wall of the lead screw, a sliding groove provided on each adjacent side of the outer wall of the column, the sliding groove being slidably connected to the movable block, splitting blades provided on each adjacent side of the two movable blocks, and a fixing mechanism provided on the top of the movable block for fixing the splitting blades.

[0006] The above technical solution involves placing the leather to be split flat on the conveying assembly. The leather is then conveyed to the splitting area. The motor is started, driving the rotating shaft to rotate. The rotating shaft drives two worm gears to rotate, which in turn drives the worm wheel to rotate. The worm wheel drives the lead screw to rotate, causing the movable block to slide within the groove of the column. The splitting blade on the movable block moves up and down accordingly, adjusting its height and position. This improves the accuracy and uniformity of leather splitting, meets the requirements of high-quality leather processing, and enhances the equipment's adaptability to different types of leather. A fixing mechanism is installed on the top of the movable block to fix the splitting blade.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a second slide groove, which is formed on the top wall of the movable block. A threaded rod is rotatably connected to the inner bottom wall of the second slide groove. A knob is fixedly connected to the top end of the threaded rod. A clamping block is threadedly connected to the outer wall of the threaded rod. The clamping block is slidably connected to the second slide groove. A locking block is fixedly connected to the bottom of the clamping block. A locking groove is formed on both the front and rear sides of the top wall of the splitting blade. A locking groove is formed on the bottom wall of the second slide groove. The locking groove is engaged with the locking groove by the locking block.

[0009] The above technical solution involves aligning the first slot on the splitting cutter with the second slot in the slide groove, rotating the knob, which drives the threaded rod to rotate within the slide groove. The threaded rod causes the clamping block to move downward within the slide groove, and the clamping block drives the bottom clamping block to move downward as well. The clamping block is then embedded in the first and second slots, firmly fixing the splitting cutter to the movable block. This restricts the movement of the splitting cutter in both the horizontal and vertical directions, ensuring that the splitting cutter maintains a stable position and posture during the leather splitting process, thereby guaranteeing the accuracy and quality of the splitting.

[0010] As a further description of the above technical solution:

[0011] The bottom wall of the motor is fixedly connected to a fixing frame, and the bottom wall of the fixing frame is threaded with a bolt on each of the left and right sides.

[0012] The above technical solution involves using a mounting bracket to secure the motor and bolts to firmly connect the motor to the column.

[0013] As a further description of the above technical solution:

[0014] A controller is fixedly connected to the middle of the front side of the outer wall of the column, and multiple buttons are equidistantly installed on the lower middle part of the front side of the outer wall of the controller.

[0015] The above technical solution involves a controller that controls the motor to move the cross-section cutter up and down based on the input cross-section parameters, and buttons that are used to input the cross-section parameters.

[0016] As a further description of the above technical solution:

[0017] Hinges are provided at the four corners of the front side of the outer wall of the base, and bolts are threaded to the four corners of the outer wall of the hinges. The inspection door is rotatably connected to the base through the hinges.

[0018] Through the above technical solution: the hinge is used to enable the access door to rotate around the hinge, making it easy to open and close the access door; bolt two is used to fix the hinge to the base and the access door.

[0019] As a further description of the above technical solution:

[0020] Each of the two inspection doors has a handle on the front side of its outer wall, and the top and bottom of the handle are threaded with three bolts.

[0021] The above technical solution provides that the handle is used to facilitate workers to grip the handle to open or close the maintenance door, and bolt three is used to fix the handle to the maintenance door.

[0022] As a further description of the above technical solution:

[0023] Multiple storage boxes are equidistantly installed on the front side of the outer wall of the base, and a handle is fixedly connected to the upper middle part of the front side of the outer wall of each storage box.

[0024] The above technical solution allows for the storage box to hold various tools needed during leather processing, while the handle facilitates the opening of the storage box by operators.

[0025] As a further description of the above technical solution:

[0026] The base has support legs fixedly connected to the four corners of its bottom wall, and the bottom walls of the support legs are equipped with anti-slip pads.

[0027] The above technical solution involves using support legs to support the base, distributing the weight of the base evenly on the ground to ensure its stability, and anti-slip pads to increase the friction between the support legs and the ground, preventing the base from sliding due to vibration during operation.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the leather to be split is placed flat on the transmission assembly and fed into the splitting area through the transmission assembly. The motor drives the rotating shaft to rotate, the rotating shaft drives the worm gear to rotate, the worm gear drives the worm wheel to rotate, the worm wheel drives the transmission screw to rotate, and the screw drives the movable block to slide in the groove on the column. The splitting blade on the movable block moves up and down, improving the splitting accuracy and uniformity of the leather, meeting the requirements of high-quality processing, and enhancing the adaptability of the equipment to different types of leather.

[0030] 2. In this utility model, the slot one of the splitting knife is aligned with the slot two in the slide groove two. The knob is rotated to make the threaded rod rotate, which drives the clamping block and the bottom clamping block to move downward and embed into the slot one and the slot two, fixing the splitting knife on the movable block, restricting its horizontal and vertical movement, and ensuring the stability and splitting accuracy of the splitting knife in the leather splitting process. Attached Figure Description

[0031] Figure 1 This is a front view of a leather splitting machine proposed in this utility model;

[0032] Figure 2 This is a perspective view of a leather splitting machine proposed in this utility model;

[0033] Figure 3 This is a partial structural exploded view of a leather splitting machine proposed in this utility model;

[0034] Figure 4 This is a partial structural diagram of a leather splitting machine proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the fixing mechanism of a leather splitting machine proposed in this utility model.

[0036] Legend:

[0037] 1. Base; 2. Fixing mechanism; 201. Slide groove two; 202. Knob; 203. Threaded rod; 204. Clamping block; 205. Locking block; 206. Locking groove one; 207. Locking groove two; 3. Transmission assembly; 4. Column; 5. Motor; 6. Shaft; 7. Worm gear; 8. Worm wheel; 9. Lead screw; 10. Movable block; 11. Slide groove one; 12. Splitting knife; 13. Fixing frame; 14. Bolt one; 15. Controller; 16. Button; 17. Inspection door; 18. Hinge; 19. Bolt two; 20. Handle; 21. Bolt three; 22. Storage box; 23. Handle; 24. Support leg; 25. Anti-slip mat. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a leather splitting machine, comprising a base 1, a transmission assembly 3 installed in the middle of the top wall of the base 1, the conveyor belt in the transmission assembly 3 being made of high-strength rubber material with anti-slip texture to enhance friction against the leather, inspection doors 17 being provided at both the left and right ends of the front middle of the outer wall of the base 1, columns 4 being fixedly connected to the front and rear sides of the outer wall of the base 1, a motor 5 being provided in the lower middle of the rear side of the outer wall of the column 4, a rotating shaft 6 being fixedly connected to the output end of the motor 5, the motor 5 driving the rotating shaft 6 to rotate, worm gears 7 being fixedly connected to the front and rear ends of the outer wall of the rotating shaft 6, the rotating shaft 6 driving the two worm gears 7 to rotate, a worm wheel 8 being meshed with the left side of the outer wall of the worm gear 7, the worm gear 7 driving the worm wheel 8 to rotate, a lead screw 9 being fixedly connected to the middle of the top wall of the worm wheel 8, the worm wheel 8 driving the lead screw 9 to rotate, a movable block 10 being threadedly connected to the middle of the outer wall of the lead screw 9, and openings on adjacent sides of the outer wall of the column 4. The slide groove 11 is slidably connected to the movable block 10. The lead screw 9 drives the movable block 10 to slide in the slide groove 11 on the column 4. A splitting blade 12 is provided on each adjacent side of the two movable blocks 10. A fixing mechanism 2 is provided on the top of the movable block 10. The fixing mechanism 2 is used to fix the splitting blade 12. The splitting blade 12 is made of hard alloy material to improve wear resistance and cutting accuracy. A fixing frame 13 is fixedly connected to the bottom wall of the motor 5. The fixing frame 13 is used to fix the motor 5. Bolts 14 are threaded on the left and right sides of the bottom wall of the fixing frame 13. Bolts 14 are used to firmly connect the motor 5 to the column 4. A controller 15 is fixedly connected to the middle of the front side of the outer wall of the column 4. The controller 15 is used to control the motor 5 to drive the splitting blade 12 to move up and down according to the input splitting parameters. Multiple buttons 16 are equidistantly installed on the lower middle part of the front side of the outer wall of the controller 15. Buttons 16 are used to input splitting parameters.

[0040] Specifically, the leather to be split is placed flat on the conveyor assembly 3. The leather enters the splitting area with the conveyor assembly 3. After the motor 5 is started, the motor 5 drives the rotating shaft 6 to rotate. The rotating shaft 6 then drives the two worm gears 7 to rotate. The worm gears 7 drive the worm wheel 8 to rotate through transmission. The worm wheel 8 then drives the transmission screw 9 to rotate. The screw 9 causes the movable block 10 to slide in the groove 11 of the column 4. The splitting blade 12 on the movable block 10 moves up and down accordingly to adjust the height position of the splitting blade 12. This process improves the accuracy and uniformity of leather splitting, meets the needs of high-quality leather processing, and enhances the adaptability of the equipment to different types of leather. The top of the movable block 10 is equipped with a fixing mechanism 2, which is used to fix the splitting blade 12. The fixing frame 13 is used to fix the motor 5. Bolt 14 is used to firmly connect the motor 5 to the column 4. The controller 15 is used to control the motor 5 to drive the splitting blade 12 to move up and down according to the input splitting parameters. The button 16 is used to input the splitting parameters.

[0041] Reference Figure 2 and Figure 5The fixing mechanism 2 includes a second slide groove 201, which is formed on the top wall of the movable block 10. A threaded rod 203 is rotatably connected to the inner bottom wall of the second slide groove 201. A knob 202 is fixedly connected to the top of the threaded rod 203. The knob 202 drives the threaded rod 203 to rotate within the second slide groove 201. A clamping block 204 is threadedly connected to the outer wall of the threaded rod 203. The clamping block 204 is slidably connected to the second slide groove 201. The threaded rod 203 drives the clamping block 204 to move downward within the second slide groove 201. A locking block 205 is fixedly connected to the bottom of the clamping block 204. The clamping block 204 drives the bottom locking block 205 to move downward accordingly. Moving downwards, the top wall of the splitting blade 12 has slots 206 on both the front and rear sides, and the bottom wall of the sliding groove 201 has slot 207. Slot 1 206 engages with slot 207 through a locking block 205. The locking block 205 is embedded in slot 1 206 and slot 207, which tightly fixes the splitting blade 12 on the movable block 10. Multiple storage boxes 22 are installed at equal intervals on the front side of the outer wall of the base 1. The storage boxes 22 are used to store various tools required in the leather processing process. A handle 23 is fixedly connected to the upper middle part of the front side of the outer wall of the storage box 22. The handle 23 is used to facilitate the operator to open the storage box 22.

[0042] Specifically, the slot 206 on the splitting blade 12 is precisely aligned with the slot 207 in the slide 201. Then, the knob 202 is rotated. The rotation of the knob 202 drives the threaded rod 203 to rotate in the slide 201, thereby causing the clamping block 204 to move downward along the slide 201. The descent of the clamping block 204 causes the bottom clamping block 205 to move downward simultaneously, so that the clamping block 205 is embedded in the slot 206 and the slot 207, thereby firmly fixing the splitting blade 12 on the movable block 10. This restricts the movement of the splitting blade 12 in the horizontal and vertical directions, ensuring that the splitting blade 12 can maintain a stable position during the leather splitting process, thus ensuring the accuracy and quality of the splitting operation. The storage box 22 is used to store various tools required in the leather processing process, and the handle 23 is used to facilitate the operator to open the storage box 22.

[0043] Reference Figure 1 and Figure 2Hinges 18 are provided at the four corners of the front side of the outer wall of the base 1. Bolts 19 are threadedly connected to the four corners of the front side of the outer wall of the hinges 18. Bolts 19 are used to fix the hinges 18 to the base 1 and the access door 17. The access door 17 is rotatably connected to the base 1 via the hinges 18. The hinges 18 allow the access door 17 to rotate around the hinges 18, making it easy to open and close the access door 17. Handles 20 are provided on adjacent sides of the front side of the outer wall of the two access doors 17. The handles 20 are used to facilitate the gripping of the staff. To open or close the inspection door 17, bolts 21 are threaded onto the top and bottom of the handle 20. Bolts 21 are used to fix the handle 20 to the inspection door 17. Support legs 24 are fixedly connected to the four corners of the bottom wall of the base 1. The support legs 24 are used to support the base 1 and distribute the weight of the base 1 evenly on the ground to ensure the stability of the base 1. Anti-slip pads 25 are installed on the bottom wall of the support legs 24 to increase the friction between the support legs 24 and the ground and prevent the base 1 from sliding due to vibration during operation.

[0044] Specifically, hinge 18 is used to allow the access door 17 to rotate around hinge 18, making it easy to open and close the access door 17. Bolt 2 19 is used to fix hinge 18 to base 1 and access door 17. Handle 20 is used to make it easy for workers to hold handle 20 to open or close access door 17. Bolt 3 21 is used to fix handle 20 to access door 17. Support leg 24 is used to support base 1, distribute the weight of base 1 evenly to the ground, and ensure the stability of base 1. Anti-slip pad 25 increases the friction between support leg 24 and the ground, preventing base 1 from sliding due to vibration during operation.

[0045] Working principle: The leather to be split is placed flat on the conveyor assembly 3. The leather is fed into the splitting area through the conveyor assembly 3. The motor 5 is started, and the motor 5 drives the rotating shaft 6 to rotate. The rotating shaft 6 drives the two worm gears 7 to rotate. The worm gears 7 drive the worm wheel 8 to rotate. The worm wheel 8 drives the transmission screw 9 to rotate. The screw 9 drives the movable block 10 to slide in the slide groove 11 on the column 4. The splitting blade 12 on the movable block 10 moves up and down. Adjusting the height position of the splitting blade 12 improves the accuracy and uniformity of leather splitting, meets the needs of high-quality leather processing, and enhances the adaptability of the equipment to different types of leather.

[0046] Align the first slot 206 on the splitting blade 12 with the second slot 207 in the second slide groove 201, rotate the knob 202. The knob 202 drives the threaded rod 203 to rotate in the second slide groove 201. The threaded rod 203 drives the clamping block 204 to move downward in the second slide groove 201. The clamping block 204 drives the bottom clamping block 205 to move downward as well. The clamping block 205 is embedded in the first slot 206 and the second slot 207, which tightly fixes the splitting blade 12 on the movable block 10, restricting the movement of the splitting blade 12 in the horizontal and vertical directions. This ensures that the splitting blade 12 can maintain a stable position during the leather splitting process, thereby ensuring the accuracy and quality of the splitting.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leather splitting machine, comprising a base (1), characterized in that: A transmission assembly (3) is installed in the middle of the top wall of the base (1). Inspection doors (17) are provided at the left and right ends of the middle front side of the outer wall of the base (1). Columns (4) are fixedly connected to the front and rear sides of the outer wall of the base (1). A motor (5) is provided in the lower middle part of the rear side of the outer wall of the column (4). A rotating shaft (6) is fixedly connected to the output end of the motor (5). Worms (7) are fixedly connected to the front and rear ends of the outer wall of the rotating shaft (6). A worm wheel (8) is meshed with the left side of the outer wall of the worm (7). The worm gear (8) is fixedly connected to the middle of the top wall of the worm gear (8). The middle of the outer wall of the worm gear (9) is threadedly connected to the movable block (10). The outer wall of the column (4) is provided with a sliding groove (11) on each adjacent side. The sliding groove (11) is slidably connected to the movable block (10). The two movable blocks (10) are provided with a cutting blade (12) on each adjacent side. The top of the movable block (10) is provided with a fixing mechanism (2). The fixing mechanism (2) is used to fix the cutting blade (12).

2. The leather splitting machine according to claim 1, characterized in that: The fixing mechanism (2) includes a second slide groove (201), which is located on the top wall of the movable block (10). A threaded rod (203) is rotatably connected to the inner bottom wall of the second slide groove (201). A knob (202) is fixedly connected to the top of the threaded rod (203). A clamping block (204) is threadedly connected to the outer wall of the threaded rod (203). The clamping block (204) is slidably connected to the second slide groove (201). A locking block (205) is fixedly connected to the bottom of the clamping block (204). A locking groove (206) is passed through the front and rear sides of the top wall of the splitting cutter (12). A locking groove (207) is provided on the bottom wall of the second slide groove (201). The locking groove (206) is engaged with the locking groove (207) by the locking block (205).

3. A leather splitting machine according to claim 1, characterized in that: The bottom wall of the motor (5) is fixedly connected to a fixing frame (13), and the left and right sides of the bottom wall of the fixing frame (13) are threaded with bolts (14).

4. A leather splitting machine according to claim 1, characterized in that: A controller (15) is fixedly connected to the middle of the front side of the outer wall of the column (4), and multiple buttons (16) are installed at equal intervals on the lower middle of the front side of the outer wall of the controller (15).

5. A leather splitting machine according to claim 1, characterized in that: Hinges (18) are provided at the four corners of the front side of the outer wall of the base (1). Bolts (19) are threadedly connected at the four corners of the front side of the outer wall of the hinges (18). The inspection door (17) is rotatably connected to the base (1) through the hinges (18).

6. A leather splitting machine according to claim 1, characterized in that: Each of the two inspection doors (17) has a handle (20) on the front side of its outer wall, and the top and bottom ends of the handle (20) are threaded with bolts (21).

7. A leather splitting machine according to claim 1, characterized in that: Multiple storage boxes (22) are equidistantly installed on the front side of the outer wall of the base (1), and a handle (23) is fixedly connected to the upper middle part of the front side of the outer wall of the storage box (22).

8. A leather splitting machine according to claim 1, characterized in that: The base (1) has four fixed support legs (24) at the four corners of its bottom wall, and the bottom wall of the support legs (24) is equipped with anti-slip pads (25).