A leather edging device

By introducing a discharge chamber, discharge conveyor belt, rack and pinion, and air pump system into the leather trimming device, the problem of difficulty in real-time discharge of waste chips and scrap materials is solved, achieving continuous cleaning and stable trimming effect, and improving work efficiency and quality.

CN224378082UActive Publication Date: 2026-06-19CHANGZHOU LUWANG SPORTS EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU LUWANG SPORTS EQUIPMENT CO LTD
Filing Date
2025-07-12
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing leather trimming devices have difficulty removing waste and scrap materials in real time during operation, which affects the cutting effect and work efficiency. They require regular cleaning, resulting in unstable trimming quality.

Method used

A leather trimming device was designed, comprising a discharge chamber, a discharge conveyor belt, a rack, a separating plate, and an air pump system. Waste and debris are discharged through the discharge chamber and the discharge conveyor belt, and the air pump system assists in cleaning the waste inside the cutter. A protective net and a perforated plate prevent debris from entering the air holes, thus achieving continuous cleaning.

Benefits of technology

It enables continuous discharge of waste and chips, eliminating the need for regular cleaning, improving work efficiency and edge trimming quality, and ensuring the stability of cutting results.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224378082U_ABST
    Figure CN224378082U_ABST
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Abstract

This utility model discloses a leather trimming device, specifically relating to the field of leather trimming technology. It includes a machine body with a discharge chamber on one side. A discharge conveyor belt is located in the middle of the discharge chamber, and multiple racks are fixedly connected to the outer surface of the discharge conveyor belt. A separation plate is located at the bottom of one side of the discharge chamber at one end of the machine body. This utility model, through the cooperation of the discharge chamber, the discharge conveyor belt, and the racks, allows waste and debris generated after trimming by the cutting blade to fall onto the discharge conveyor belt. The rotation of the discharge conveyor belt controls the rotation of the racks, discharging the waste and debris in the middle of the discharge chamber to one side. Furthermore, by activating an air pump, gas is input into and ejected into the air box and jet box, assisting in the discharge of waste and debris from both the cutting blade and the discharge chamber. This facilitates continuous trimming processing, eliminates the need for periodic cleaning, and improves work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of leather trimming technology, and more specifically, to a leather trimming device. Background Technology

[0002] In the ball manufacturing industry, leather is a key raw material for producing high-quality balls, and its processing quality directly determines the performance and quality of the finished products. The edge trimming process, as a crucial step in leather processing, plays a vital role in the ball's shaping effect, durability, and overall appearance.

[0003] Chinese patent application CN202222079114.2 discloses a leather edge-trimming machine for easy material feeding, including an edge-trimming body and a foot detachably mounted on the edge-trimming body. The edge-trimming body includes a frame and a clamping device fixed on the frame. A cutter is rotatably connected to the frame, and a conveyor wheel for conveying the shoe upper to the cutter is also rotatably connected. This invention can precisely control the position of the shoe upper and prevent it from shifting. The thinning width is precise and easy to adjust, making it suitable for thinning the edges of shoe uppers.

[0004] However, as can be seen from the accompanying drawings in the instruction manual, some waste and long strips of waste will be generated after the leather is trimmed. The waste and waste will be concentrated on one side of the cutting blade, which requires regular cleaning during operation, affecting work efficiency. It is inconvenient to remove and clean the waste and waste in real time, and the concentration of waste and waste in the cutting blade will affect the cutting effect, thus affecting the trimming quality and effect. Therefore, a leather trimming device is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a leather trimming device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a leather trimming device, comprising a body, wherein a discharge chamber is provided on one side of the body, through which strip-shaped waste and debris after trimming can be discharged in a concentrated manner for convenient continuous cleaning and use; a discharge conveyor belt is provided in the middle of the discharge chamber, and multiple racks are fixedly connected to the outer surface of the discharge conveyor belt; controlling the start of the discharge conveyor belt to transport the strip-shaped waste to one side of the body through the racks for easy cleaning and to avoid concentration in the middle of the body affecting the use effect; a separation plate is provided at the bottom of one side of the discharge chamber at one end of the body, through which the strip-shaped waste on the racks can be conveniently separated and discharged; fixing plates are symmetrically fixedly connected to both ends of the separation plate, through which the separation plate is supported and fixed.

[0007] A cutter is located in the middle of the machine body. A motor is connected to one side of the cutter. Starting the motor controls the rotation of the cutter. An air hole is opened on one side of the cutter. A protective net is fixedly connected to the middle of the cutter. An air box is located at the bottom of one side of the cutter. An air jet box is located on one side of the inner cavity of the discharge chamber. The air outlet of the air jet box is equipped with a perforated plate. An air pump is located in the middle of the machine body. Starting the air pump inputs gas into the air jet box and the air box. The air jet box can generate a force on the separation plate side of the waste material located in the middle of the discharge chamber through the air jet box, which facilitates discharge and cleaning. The air jet from the air box enters the interior of the cutter through the air hole, which can discharge and clean the waste and debris remaining in the inner cavity of the cutter, which facilitates material feeding. The protective net and the perforated plate can prevent waste and debris from entering the interior of the air jet box and the air box, improving the use effect.

[0008] Preferably, the inner cavity of the discharge chamber is the same as the middle part of the cutter, the cross-sectional shape of the cutter is set as a circular cover shape, the air box corresponds to one of the air holes, the cutter cuts the edge, and the waste material is conveniently input into the interior of the discharge chamber and discharged through the discharge chamber. The waste material and debris inside the cutter can be discharged through the air box into the interior of the cutter.

[0009] Preferably, the jet box is located on the top side of the discharge conveyor belt. The output end of the air pump is connected to the inner cavity of the jet box and the air box through a pipe. A valve is provided in the middle of the pipe at the output end of the air pump. When the air pump is started, gas is injected into the jet box and the air box, which can generate jet force at one end of the inner cavity of the discharge chamber and one side of the cutter, which facilitates the discharge of waste material inside the cutter and the discharge chamber.

[0010] Preferably, the separating plate is located at the bottom of one end of the discharge conveyor belt, the top wall of the separating plate is adapted to the teeth of the rack, and the fixing plate is fixed at both ends of the discharge conveyor belt. The separating plate cleans the waste material remaining on the rack, thereby improving the discharge efficiency.

[0011] Preferably, a support frame is fixedly connected to the top of the machine body, an adjusting roller is connected to one end of the support frame, a second adjusting rod is provided on the top of the support frame to drive the adjusting roller to move up and down, a conveying wheel is provided on the top of one side of the cutter, the conveying wheel is located directly below the adjusting roller, the leather can be conveyed by the conveying wheel, the leather can be squeezed and limited by the adjusting roller to guide the cutting angle of the leather, and the tilt angle of the second adjusting rod can be adjusted by the second adjusting rod. The conveying wheel, the support frame, the adjusting roller, and the second adjusting rod are all technical structures disclosed in the prior art.

[0012] Preferably, a first adjusting rod is provided on the top of the machine body, and a guide block is fixedly connected to one end of the first adjusting rod. The guide block is located on the side of the adjusting roller away from the cutter. A strip-shaped hole is opened in the middle of the first adjusting rod, and a bolt is inserted in the middle of the strip-shaped hole. The bolt is fixed to the top of the machine body, and a nut is fitted on the top of the bolt. The bolt can control the first adjusting rod to drive the guide block to move, and the guide block can limit the placement of the leather to adjust the cutting depth of the leather, thereby facilitating adjustment and use.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model firstly uses a discharge chamber and a discharge conveyor belt, along with a rack and pinion mechanism, to allow waste and debris generated after the cutting blade trimming to fall onto the discharge conveyor belt. The rotation of the discharge conveyor belt controls the rotation of the rack and pinion, which discharges the waste and debris in the middle of the discharge chamber to one side. By starting the air pump, gas is input into the air box and the jet box and then sprayed out, which can assist in the discharge of waste and debris inside the cutting blade and the discharge chamber. This facilitates continuous trimming and does not require regular cleaning, thus improving work efficiency.

[0015] 2. This utility model also prevents the generated debris from entering the air holes and air box through the setting of perforated plate and protective net, which plays a blocking and protective role without affecting the air cleaning effect. The separation plate can easily separate and discharge the strip-shaped waste on the rack, preventing the waste and debris from moving to the bottom of the discharge conveyor belt and affecting the use of the discharge conveyor belt. The cooperation of the setting of conveyor wheel and adjusting roller facilitates the conveying of leather cutting, and the guide block limits the guidance and improves the edge trimming effect.

[0016] In summary, through the interaction of the above-mentioned multiple functions, it is convenient to continuously discharge the waste chips and strip-shaped waste generated during cutting, which facilitates continuous processing and edge trimming without the need for periodic cleaning, thus improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a schematic diagram of the connection structure between the motor and the cutter of this utility model.

[0021] Figure 5This is a schematic diagram showing the disassembled structure of the discharge conveyor belt and the separation plate of this utility model.

[0022] The attached diagram is labeled as follows: 1. Machine body; 2. Discharge chamber; 3. Discharge conveyor belt; 4. Rack; 5. Separating plate; 6. Fixing plate; 7. Air jet box; 8. Perforated plate; 9. Air pump; 10. Cutter; 11. Air hole; 12. Protective net; 13. Motor; 14. Air box; 15. Valve; 16. Conveyor wheel; 17. First adjusting rod; 18. Guide block; 19. Support frame; 20. Adjusting roller; 21. Second adjusting rod. Detailed Implementation

[0023] 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.

[0024] As attached Figure 1-5 The leather trimming device shown includes a body 1. A discharge chamber 2 is provided on one side of the body 1. The discharge chamber 2 can be used to discharge strip-shaped waste and debris after trimming, which is convenient for continuous cleaning. A discharge conveyor belt 3 is provided in the middle of the discharge chamber 2. Multiple racks 4 are fixedly connected to the outer surface of the discharge conveyor belt 3. The discharge conveyor belt 3 is started and the strip-shaped waste is conveyed to one side of the body 1 through the racks 4 for easy cleaning and to avoid the waste being concentrated in the middle of the body 1, which would affect the performance. A separation plate 5 is provided at the bottom of one side of the body 1, which is located on the side of the discharge chamber 2. The separation plate 5 is used to facilitate the separation and discharge of the strip-shaped waste on the racks 4. Fixing plates 6 are symmetrically fixed to both ends of the separation plate 5, which support and fix the separation plate 5.

[0025] A cutter 10 is located in the middle of the machine body 1. A motor 13 is connected to one side of the cutter 10. Starting the motor 13 controls the rotation of the cutter 10. An air hole 11 is opened on one side of the cutter 10. A protective net 12 is fixedly connected to the middle of the cutter 10. An air box 14 is located at the bottom of one side of the cutter 10. An air jet box 7 is located on one side of the inner cavity of the discharge chamber 2. A perforated plate 8 is provided at the air outlet of the air jet box 7. An air pump 9 is located in the middle of the machine body 1. Starting the air pump 9 inputs gas into the air jet box 7 and the air box 14. The gas jet box 7 can generate a force on the separation plate 5 side of the waste located in the middle of the discharge chamber 2 through the waste jet box 7, which is convenient for discharge and cleaning. The gas jet from the air box 14 enters the interior of the cutter 10 through the air hole 11, which can discharge and clean the waste and debris remaining in the inner cavity of the cutter 10, which is convenient for material feeding. The protective net 12 and the perforated plate 8 can prevent waste and debris from entering the interior of the air jet box 7 and the air box 14, thereby improving the use effect.

[0026] As attached Figure 1-5 As shown, the inner cavity of the discharge chamber 2 is the same as the middle part of the cutter 10. The cross-sectional shape of the cutter 10 is set as a circular cover shape. The air box 14 corresponds to one of the air holes 11. The cutter 10 cuts the edge and facilitates the input of waste material into the discharge chamber 2. The waste material is discharged through the discharge chamber 2 and sprayed into the cutter 10 through the air box 14 to discharge the waste material and debris inside the cutter 10. The air jet box 7 is located on the top side of the discharge conveyor belt 3. The output end of the air pump 9 is connected to the air jet box 7 and the inner cavity of the air box 14 through a pipe. A valve 15 is installed in the middle of the pipeline. When the air pump 9 is started, gas is injected into the air jet box 7 and the air box 14, which can generate air jet force at one end of the inner cavity of the discharge chamber 2 and one side of the cutter 10, which facilitates the discharge of waste inside the cutter 10 and the discharge chamber 2. The separation plate 5 is set at the bottom of one end of the discharge conveyor belt 3. The top wall of the separation plate 5 is adapted to the teeth of the rack 4. The fixing plate 6 is fixed at both ends of the discharge conveyor belt 3. The separation plate 5 cleans the waste remaining on the rack 4 and improves the discharge effect.

[0027] As attached Figure 1 , 2 As shown, a support frame 19 is fixedly connected to the top of the machine body 1. An adjusting roller 20 is connected to one end of the support frame 19. A second adjusting rod 21 is provided on the top of the support frame 19 to drive the adjusting roller 20 to move up and down. A conveying wheel 16 is provided on the top of one side of the cutter 10. The conveying wheel 16 is located directly below the adjusting roller 20. A first adjusting rod 17 is provided on the top of the machine body 1. A guide block 18 is fixedly connected to one end of the first adjusting rod 17. The guide block 18 is located on the side of the adjusting roller 20 away from the cutter 10. A strip-shaped hole is opened in the middle of the first adjusting rod 17, and a bolt is inserted into the middle of the strip-shaped hole. Bolts are fixed to the top of the machine body 1, and nuts are fitted on the top of the bolts. The leather can be conveyed by the conveyor wheel 16, and the leather can be squeezed and limited by the adjusting roller 20 to guide the cutting angle of the leather. The tilt angle of the second adjusting rod 21 can be adjusted by the second adjusting rod 21. The conveyor wheel 16, the support frame 19, the adjusting roller 20, and the second adjusting rod 21 are all technical structures disclosed in the prior art. The bolts can control the first adjusting rod 17 to drive the guide block 18 to move, and the guide block 18 can limit and adjust the placed leather, thereby adjusting the cutting depth of the leather, which is convenient for adjustment and use.

[0028] The working principle of this utility model is as follows: When in use, the leather is guided by the guide block 18 and then conveyed by the conveyor wheel 16 and the adjusting roller 20. Then, the cutter 10 is rotated by the start motor 13 to trim the leather edges.

[0029] Then, the air pump 9 is started to input gas into the air box 14 and the jet box 7, so that the strip-shaped waste and scrap entering the cutter 10 are conveyed to the middle of the discharge chamber 2. At the same time, the jet box 7 sprays gas to output the scrap and waste that fall on the top of the discharge conveyor belt 3 to one side of the machine body 1. The strip-shaped waste can be guided and conveyed by the rack 4, which facilitates the unloading and use, thereby improving the continuous working effect.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 trimming device, comprising a body (1), characterized in that: The machine body (1) has a discharge chamber (2) on one side, and a discharge conveyor belt (3) is provided in the middle of the discharge chamber (2). Multiple racks (4) are fixedly connected to the outer surface of the discharge conveyor belt (3). A separation plate (5) is provided at the bottom of one side of the discharge chamber (2) of the machine body (1). Fixed plates (6) are symmetrically fixedly connected to both ends of the separation plate (5). A cutter (10) is provided in the middle of the machine body (1). A motor (13) is connected to one side of the cutter (10). An air hole (11) is opened on one side of the cutter (10). A protective net (12) is fixedly connected to the middle of the cutter (10). An air box (14) is provided at the bottom of one side of the cutter (10). An air jet box (7) is provided on one side of the inner cavity of the discharge chamber (2). A perforated plate (8) is provided at the air outlet of the air jet box (7). An air pump (9) is provided in the middle of the machine body (1).

2. The leather trimming device according to claim 1, characterized in that: The inner cavity of the discharge chamber (2) is the same as the middle part of the cutter (10). The cross-sectional shape of the cutter (10) is set as a circular cover shape. The air box (14) corresponds to one of the air holes (11).

3. The leather trimming device according to claim 1, characterized in that: The jet box (7) is located on the top side of the discharge conveyor belt (3). The output end of the air pump (9) is connected to the inner cavity of the jet box (7) and the air box (14) through a pipe. A valve (15) is provided in the middle of the output pipe of the air pump (9).

4. The leather trimming device according to claim 1, characterized in that: The separation plate (5) is set at the bottom of one end of the discharge conveyor belt (3). The top wall of the separation plate (5) is adapted to the teeth of the rack (4). The fixing plate (6) is fixed at both ends of the discharge conveyor belt (3).

5. A leather trimming device according to claim 1, characterized in that: A support frame (19) is fixedly connected to the top of the machine body (1). An adjusting roller (20) is connected to one end of the support frame (19). A second adjusting rod (21) is provided on the top of the support frame (19) to drive the adjusting roller (20) to move up and down. A conveying wheel (16) is provided on the top of one side of the cutter (10). The conveying wheel (16) is located directly below the adjusting roller (20).

6. A leather trimming device according to claim 1, characterized in that: The top of the machine body (1) is provided with a first adjusting rod (17), one end of which is fixedly connected to a guide block (18). The guide block (18) is located on the side of the adjusting roller (20) away from the cutter (10). A strip-shaped hole is opened in the middle of the first adjusting rod (17), and a bolt is inserted in the middle of the strip-shaped hole. The bolt is fixed to the top of the machine body (1), and a nut is fitted on the top of the bolt.

Citation Information

Patent Citations

  • Leather edge cutting machine facilitating discharging

    CN218521277U