Recovery device for leather trimming waste

By designing a leather trimming waste recycling device that includes a shredding and magnetic attraction mechanism, the problem of metal and leather mixing was solved, achieving effective metal separation and enhanced recycling value.

CN223915552UActive Publication Date: 2026-02-17HENAN LISHANG LEATHER IND CO LTD
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Patent Information

Application Number
CN202520149315.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-02-17
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

In existing technologies, during the recycling process of leather trimming waste, metal and leather become mixed and difficult to separate, resulting in a decrease in recycling value.

Method used

Design a recycling device that includes a support, a shredding mechanism, a conveying mechanism, and a magnetic attraction mechanism. By shredding and magnetic screening, metals and non-metals in leather waste can be separated, thereby increasing the recycling value.

Benefits of technology

This technology enables the effective separation and recycling of metals from leather trimming waste, thereby increasing the overall value of the recycling equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a recovery device for leather trimming waste. The recovery device comprises a support and a magnetic attraction mechanism. A chopping mechanism is arranged at the upper end of the support, a conveying mechanism is arranged at the lower end of the chopping mechanism, and a recycling frame is placed at the front end of the support; the magnetic attraction mechanism comprises bases, a magnetic attraction seat, an electromagnet, a second motor and synchronous belt wheels, the bases which are evenly distributed are fixedly connected to the left end and the right end of the front side face of the upper surface of the support, the synchronous belt wheels are rotationally connected to the upper ends of the bases through rotating shafts, and every two synchronous belt wheels which are adjacent left and right are in transmission connection through the corresponding synchronous belt wheel. Magnetic attraction seats are fixedly connected to the front side and the rear side of the outer side face of the synchronous belt, electromagnets are fixedly connected to the lower ends of the magnetic attraction seats and located at the upper end of the conveying mechanism, and according to the recovery device for the leather trimming waste, metal mixed in the leather waste can be screened through magnetic attraction after cutting, and the recovery value is improved.
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Description

Technical Field

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

[0002] Leather is animal hide that has undergone physical and chemical processing, such as hair removal and tanning, to become deformed and less prone to decay. Leather is composed of tightly woven natural protein fibers in three-dimensional space, with a special grain layer on its surface, giving it a natural grain and luster, and a comfortable feel. The leather industry encompasses core sectors such as leather tanning, shoemaking, leather clothing, leather goods, fur and its products, as well as supporting industries such as leather chemicals, leather hardware, leather machinery, and accessories.

[0003] When processing leather, the edges need to be cut off, and this part of the leather becomes waste. To avoid wasting resources, the leather edge waste needs to be shredded into small pieces and sent to thermal power plants for recycling. However, during leather processing, small metal parts are usually fixed to the leather, and some metal is mixed in with the edge waste. Since the value of metal is higher than that of leather, it needs to be recycled in order to increase its recycling value. Therefore, we propose a recycling device for leather edge waste. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a recycling device for leather trimming waste. After being shredded, the device can magnetically screen out metals mixed in the leather waste, thereby increasing the recycling value and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a recycling device for leather trimming waste, comprising a support and a magnetic suction mechanism;

[0006] The support frame has a shredding mechanism at its upper end, a conveying mechanism at its lower end, and a recycling box at its front end.

[0007] Magnetic suction mechanism: It includes a base, magnetic base, electromagnet, motor II, and synchronous pulleys. The upper surface of the bracket has evenly distributed bases fixedly connected to both ends of the front side. The upper end of each base is rotatably connected to a synchronous pulley via a rotating shaft. The two adjacent synchronous pulleys on the left and right sides are respectively connected by synchronous pulley transmission. Magnetic bases are fixedly connected to both the front and rear sides of the outer side of the synchronous belt. Electromagnets are fixedly connected to the lower end of each magnetic base. The electromagnets are located at the upper end of the conveying mechanism. Motor II is fixedly connected to the upper end of the base on the right side. The output shaft of motor II is fixedly connected to the vertically adjacent rotating shaft. After shredding, it can magnetically screen out metal mixed in leather waste, thereby improving the recycling value.

[0008] Furthermore, it also includes a microcontroller, which is mounted on the upper surface of the bracket. The input terminal of the microcontroller is electrically connected to an external power source, and the input terminals of the motor and the electromagnet are both electrically connected to the output terminal of the microcontroller, controlling the electrical appliances.

[0009] Furthermore, the shredding mechanism includes shredding rollers, a housing, gears, and a feeding port. The housing is fixedly connected to the rear side of the upper surface of the support. Shredding rollers symmetrically distributed front and back are rotatably connected between the upper ends of the inner walls on the left and right sides of the housing. Gears are fixedly fitted on the left side of each shredding roller, and the two gears mesh with each other. The feeding port is fixedly connected to the upper end of the housing to realize the shredding of waste materials.

[0010] Furthermore, the shredding mechanism also includes a motor, which is fixedly connected to the right side of the housing. The output shaft of the motor is fixedly connected to the right end of the front shredding roller, and the input end of the motor is electrically connected to the output end of the microcontroller to drive the shredding roller to rotate.

[0011] Furthermore, the conveying mechanism includes a motor, a conveyor frame, and a conveyor belt. The lower ends of the inner walls on both the left and right sides of the housing are fixedly connected to the conveyor frame. The front and rear sides of the two conveyor frames are rotatably connected to the drive shafts. The two drive shafts are connected by the conveyor belt. The electromagnets are located at the upper end of the front side of the conveyor belt to realize the conveying of waste materials.

[0012] Furthermore, the magnetic attraction mechanism also includes inductive limit switches, support frames, and metal recycling frames. Metal recycling frames are placed on both the left and right sides of the upper surface of the support frame, respectively located on the left and right sides of the front end of the conveyor belt. Support frames distributed front and rear are fixedly connected to the right side of the upper surface of the support frame. Inductive limit switches are fixedly connected to the upper end of each support frame. The inductive limit switches correspond to the left and right positions of the adjacent magnetic attraction seats on the left side. The inductive limit switches are all located at the upper end of the metal recycling frames on the right side. The inductive limit switches are all bidirectionally electrically connected to the microcontroller to detect the position of the magnetic attraction seats.

[0013] Furthermore, a stop block is fixedly connected to the lower end of the inner wall of the housing. The stop block is located at the upper end of the conveyor frame to prevent scraps of leather trimming waste from falling into the gaps of the conveyor belt.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This recycling device for leather trimming waste has the following advantages:

[0015] After being shredded by the shredder, the leather trimming waste is transported by a conveyor belt. Motor 2 drives the synchronous belt to rotate back and forth at intervals, causing the electromagnet to move back and forth. The electromagnet magnetically attracts residual metal in the leather trimming waste fragments. When the magnetic holder moves to the lower end of the adjacent inductive limit switch on the right, the inductive limit switch provides feedback on the position of the magnetic holder, the electromagnet is de-energized, and the metal loses its attraction and falls into the corresponding metal recycling box, completing the metal recycling process. In the process of recycling leather trimming waste, after being shredded, the metal mixed in with the leather waste can be screened by magnetic attraction, improving the recycling value. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Support frame, 2. Shredding mechanism, 21. Shredding roller, 22. Housing, 23. Gear, 24. Motor 1, 25. Feeding port, 3. Magnetic suction mechanism, 31. Base, 32. Magnetic suction seat, 33. Electromagnet, 34. Motor 2, 35. Synchronous pulley, 36. Inductive limit switch, 37. Support frame, 38. Metal recycling frame, 4. Conveying mechanism, 41. Motor 3, 42. Conveying frame, 43. Conveying belt, 5. Stop block, 6. Recycling frame, 7. Microcontroller. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-2 This embodiment provides a technical solution: a recycling device for leather trimming waste, including a support 1 and a magnetic suction mechanism 3;

[0021] Support 1: A chopping mechanism 2 is provided at its upper end, a conveying mechanism 4 is provided at the lower end of the chopping mechanism 2, and a recycling box 6 is placed at the front end of the support 1.

[0022] The shredding mechanism 2 includes shredding rollers 21, a housing 22, gears 23, and a feeding port 25. The housing 22 is fixedly connected to the rear side of the upper surface of the support 1. The shredding rollers 21, symmetrically distributed front and rear, are rotatably connected between the upper ends of the inner walls on the left and right sides of the housing 22. Gears 23 are fixedly fitted on the left side of each shredding roller 21, and the two gears 23 are meshed together. The feeding port 25 is fixedly connected to the upper end of the housing 22. The shredding mechanism 2 also includes a motor 24, which is fixedly connected to the housing 22. On the right side, the output shaft of motor 24 is fixedly connected to the right end of the front shredder 21. The input end of motor 24 is electrically connected to the output end of microcontroller 7. The leather trimming waste is fed into the feeding port 25. The output shaft of motor 24 drives the front shredder 21 and gear 23 to rotate. Through the meshing of the two gears 23, the rear shredder 21 is driven to rotate in the opposite direction, tearing and shredding the leather trimming waste. The leather trimming waste is cut into small pieces and falls to the upper end of the conveyor belt 43.

[0023] The conveying mechanism 4 includes a motor 41, a conveyor frame 42, and a conveyor belt 43. The lower ends of the inner walls on both sides of the housing 22 are fixedly connected to the conveyor frame 42. The front and rear sides of the two conveyor frames 42 are rotatably connected to the transmission shafts. The two transmission shafts are connected by the transmission belt 43. The electromagnets 33 are located at the upper end of the front side of the conveyor belt 43. The lower end of the inner wall of the housing 22 is fixedly connected to the stop block 5, which is located at the upper end of the conveyor frame 42. The leather trimming waste is cut into small pieces and falls to the upper end of the conveyor belt 43. The output shaft of the motor 41 drives the rear transmission shaft to rotate, which drives the conveyor belt 43 to rotate forward. The leather trimming waste pieces are sent to the recycling box 6.

[0024] Magnetic attraction mechanism 3: It includes a base 31, a magnetic base 32, an electromagnet 33, a motor 34, and a synchronous pulley 35. The left and right ends of the front side of the upper surface of the bracket 1 are fixedly connected to evenly distributed bases 31. The upper end of each base 31 is rotatably connected to a synchronous pulley 35 via a rotating shaft. Two adjacent synchronous pulleys 35 are connected by synchronous pulley transmission. Magnetic bases 32 are fixedly connected to the front and rear sides of the outer side of the synchronous belt. The lower end of each magnetic base 32 is fixedly connected to an electromagnet 33. All iron 33 are located at the upper end of the conveyor mechanism 4. Motor 2 34 is fixedly connected to the upper end of the base 31 on the right side. The output shaft of motor 2 34 is fixedly connected to the vertically adjacent rotating shaft. The magnetic attraction mechanism 3 also includes an inductive limit switch 36, a support frame 37, and a metal recycling frame 38. Metal recycling frames 38 are placed on both the left and right sides of the upper surface of the support 1, located on the left and right sides of the front end of the conveyor belt 43. Support frames 37, distributed front and rear, are fixedly connected to the right side of the upper surface of the support 1. Inductive limit switches 36 are fixedly connected to the upper end of each of the 7 microcontrollers. The inductive limit switches 36 correspond to the left and right positions of the adjacent magnetic bases 32 on the left. The inductive limit switches 36 are all located at the upper end of the metal recycling frame 38 on the right. The inductive limit switches 36 are bidirectionally electrically connected to the microcontroller 7. The output shaft of the second motor 34 drives the lower synchronous pulley 35 to rotate, which in turn drives the left synchronous pulley 35 to rotate via the synchronous belt. When the synchronous belt rotates, it causes the magnetic bases 32 on both sides to move left and right in opposite directions. When electromagnet 33 is activated, it magnetically attracts metal from the scraps of leather trimming. When the front magnetic base 32 moves to the lower end of the adjacent inductive limit switch 36 on the right, the inductive limit switch 36 sends feedback on the position of the magnetic base 32 to the microcontroller 7. The microcontroller 7 then controls motor 34 and electromagnet 33 to be de-energized, causing the metal to lose its magnetic attraction and fall into the metal recycling box 38. After a short period of de-energization, motor 34 and electromagnet 33 are activated again. At this time, the output shaft of motor 34 reverses, achieving reciprocating metal screening.

[0025] It also includes a microcontroller 7, which is mounted on the upper surface of the bracket 1. The input terminal of the microcontroller 7 is electrically connected to an external power source, and the input terminals of the motor 34 and the electromagnet 33 are both electrically connected to the output terminal of the microcontroller 7.

[0026] The working principle of the recycling device for leather trimming waste provided by this utility model is as follows: Leather trimming waste is fed into the feeding port 25. The output shaft of motor 1 24 drives the front shredding roller 21 and gear 23 to rotate. Through the meshing of the two gears 23, the rear shredding roller 21 rotates in the opposite direction, tearing and shredding the leather trimming waste. The leather trimming waste is cut into small pieces and falls to the upper end of the conveyor belt 43. The output shaft of motor 3 41 drives the rear transmission shaft to rotate, causing the conveyor belt 43 to rotate forward. The leather trimming waste pieces are sent to the recycling frame 6. The stop block 5 prevents the leather trimming waste pieces from falling into the gaps of the conveyor belt 43. The output shaft of motor 2 34 drives the lower synchronous... The pulley 35 rotates, driving the left synchronous pulley 35 to rotate via the synchronous belt. When the synchronous belt rotates, it drives the magnetic suction seats 32 on both sides to move left and right in opposite directions. At the same time, the electromagnet 33 is activated, magnetically attracting metal from the scraps of leather trimming. When the front magnetic suction seat 32 moves to the lower end of the adjacent inductive limit switch 36 on the right, the inductive limit switch 36 sends feedback on the position of the magnetic suction seat 32 to the microcontroller 7. The microcontroller 7 controls the second motor 34 and the electromagnet 33 to be de-energized, and the metal loses its magnetic attraction and falls into the metal recycling frame 38. After a short while of de-energization, the second motor 34 and the electromagnet 33 are restarted. At this time, the output shaft of the second motor 34 reverses, realizing reciprocating metal screening.

[0027] It is worth noting that the microcontroller 7 disclosed in the above embodiments can be an HT66F3185, the motor 24 can be an SK1SI63-IEC71-71LP / 4 geared motor, the electromagnet 33 can be an XDA-50 electromagnet, the motor 34 can be an HSV series servo motor, the motor 41 can be a 5IK120RGU-CF motor, and the inductive limit switch 36 can be an IM18-M05NA distance sensor inductive proximity switch. The microcontroller 7 controls the operation of the motor 24, the electromagnet 33, the motor 34, the motor 41, and the inductive limit switch 36 using methods commonly used in the prior art.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for recycling waste leather trimmings, characterized in that: Includes a bracket (1) and a magnetic attraction mechanism (3); Support (1): A chopping mechanism (2) is provided at its upper end, a conveying mechanism (4) is provided at the lower end of the chopping mechanism (2), and a recycling box (6) is placed at the front end of the support (1). Magnetic attraction mechanism (3): It includes a base (31), a magnetic base (32), an electromagnet (33), a second motor (34), and a synchronous pulley (35). The left and right ends of the front side of the upper surface of the bracket (1) are fixedly connected to the base (31) evenly distributed. The upper end of the base (31) is rotatably connected to the synchronous pulley (35) through a rotating shaft. The two adjacent synchronous pulleys (35) are connected to each other through synchronous pulley transmission. The front and rear sides of the outer side of the synchronous belt are fixedly connected to the magnetic base (32). The lower end of the magnetic base (32) is fixedly connected to the electromagnet (33). The electromagnet (33) is located at the upper end of the transmission mechanism (4). The upper end of the base (31) on the right side is fixedly connected to the second motor (34). The output shaft of the second motor (34) is fixedly connected to the vertically adjacent rotating shaft.

2. The recycling device for leather trimming waste according to claim 1, characterized in that: It also includes a microcontroller (7), which is disposed on the upper surface of the bracket (1). The input end of the microcontroller (7) is electrically connected to an external power source, and the input ends of the motor (34) and the electromagnet (33) are both electrically connected to the output end of the microcontroller (7).

3. The recycling device for leather trimming waste according to claim 2, characterized in that: The shredding mechanism (2) includes a shredding roller (21), a housing (22), gears (23) and a feeding port (25). The housing (22) is fixedly connected to the rear side of the upper surface of the support (1). The shredding rollers (21) are symmetrically distributed front and back between the upper ends of the inner walls on the left and right sides of the housing (22). Gears (23) are fixedly fitted on the left side of each shredding roller (21). The two gears (23) are meshed together. The feeding port (25) is fixedly connected to the upper end of the housing (22).

4. A recycling device for leather trimming waste according to claim 3, characterized in that: The shredding mechanism (2) also includes a motor (24), which is fixedly connected to the right side of the housing (22). The output shaft of the motor (24) is fixedly connected to the right end of the front shredding roller (21), and the input end of the motor (24) is electrically connected to the output end of the microcontroller (7).

5. A recycling device for leather trimming waste according to claim 3, characterized in that: The conveying mechanism (4) includes a motor (41), a conveyor frame (42) and a conveyor belt (43). The lower ends of the inner walls on the left and right sides of the housing (22) are fixedly connected to the conveyor frame (42). The front and rear sides of the two conveyor frames (42) are rotatably connected to the transmission shaft. The two transmission shafts are connected by the transmission belt (43). The electromagnets (33) are located at the upper end of the front side of the conveyor belt (43).

6. A recycling device for leather trimming waste according to claim 5, characterized in that: The magnetic attraction mechanism (3) also includes an inductive limit switch (36), a support frame (37) and a metal recycling frame (38). The metal recycling frames (38) are placed on the left and right sides of the upper surface of the support (1). The metal recycling frames (38) are located on the left and right sides of the front end of the conveyor belt (43). The support frame (37) is fixedly connected to the right side of the upper surface of the support (1). The upper end of the support frame (37) is fixedly connected to an inductive limit switch (36). The inductive limit switch (36) corresponds to the left and right positions of the adjacent magnetic attraction seat (32) on the left. The inductive limit switch (36) is located at the upper end of the metal recycling frame (38) on the right. The inductive limit switch (36) is bidirectionally electrically connected to the microcontroller (7).

7. A recycling device for leather trimming waste according to claim 5, characterized in that: A stop block (5) is fixedly connected to the lower end of the inner wall of the housing (22), and the stop block (5) is located at the upper end of the conveyor frame (42).