A leather leftover recycling and pressing device
By designing a protective mechanism and an air purification system for the leather scrap recycling and pressing device, the problem of harmful gas leakage was solved, achieving effective waste gas treatment and environmental protection, and promoting the efficient recycling and reuse of leather scraps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG BAOLIJIA NEW MATERIAL CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pressing equipment generates harmful gases such as hexavalent chromium, benzene compounds, and formaldehyde when heating leather scraps, and lacks an effective waste gas collection and treatment mechanism, polluting the environment and endangering the health of operators.
A leather scrap recycling and pressing device was designed, which includes a protective mechanism, a heating tank, an air purifier and a crushing roller. Harmful gases are purified by intermittent feeding and suction ports to prevent leakage and achieve effective waste gas treatment.
It effectively blocks and purifies harmful gases, protecting the environment and the health of operators, while also enabling the efficient recycling and reuse of leather scraps.
Smart Images
Figure CN224525587U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of pressing devices, specifically a pressing device for recycling leather scraps. Background Technology
[0002] Leather product manufacturing generates a large amount of scrap material. Directly discarding or incinerating this material not only wastes resources but also pollutes the environment with its chemical components. Therefore, recycling has become an urgent need for the industry. Currently, pressing and processing into recycled materials is the main recycling method, but existing equipment has significant shortcomings in handling harmful gases during the heating process.
[0003] Existing pressing devices, when heating leather scraps, produce harmful gases such as hexavalent chromium, benzene compounds, and formaldehyde due to the decomposition of components such as chromium salts, dyes, and oils at high temperatures. These devices generally lack effective waste gas collection and treatment mechanisms, resulting in direct leakage of harmful gases, which not only pollutes the workshop environment but also seriously endangers the health of operators. Therefore, a leather scrap recycling pressing device is proposed to address the above problems. Utility Model Content
[0004] To overcome the shortcomings of existing technologies, a leather scrap recycling and pressing device is proposed.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The leather scrap recycling and pressing device of this utility model includes a base; an extrusion plate is rotatably connected to the top of the base, a feeding box is fixedly connected to the top of the extrusion plate, an air purifier is installed on one side of the feeding box, a suction port is opened on one side of the feeding box, a heating groove is opened on the top of the extrusion plate, a forming hole adapted to the heating groove is opened on one side of the outer wall of the extrusion plate, an extrusion component is provided on the extrusion plate, and a heating block is installed in the heating groove; The feeding box is equipped with a protective mechanism, which includes a baffle fixedly connected to the inner wall of the feeding box. A feeding cylinder is rotatably connected to one side of the inner wall of the feeding box via a rotating shaft. A transmission rod is fixedly connected to the other end of the feeding cylinder. A storage trough is opened on one side of the outer wall of the feeding cylinder. A mounting frame is fixedly connected to one side of the feeding box. A first motor is fixedly connected to the inner wall of the mounting frame. One end of the transmission rod passes through the feeding box and communicates with the outside. The output end of the first motor is fixedly connected to the transmission rod. Through the setting of the protective mechanism, the feeding can be intermittent to ensure that the leather waste can be heated for a sufficient time, while also blocking the harmful gases generated during heating. This ensures that harmful gases will not overflow from the top of the feeding box and pollute the environment during feeding.
[0006] Preferably, a guide plate is fixedly connected to the inner side wall of the feeding box. The guide plate is inclined and there are two guide plates, which are symmetrically distributed relative to the feeding cylinder to guide the leather scraps entering the feeding box and ensure that they enter the storage tank.
[0007] Preferably, the extrusion component includes a stamping seat fixedly connected to the bottom wall of the heating tank. The stamping seat has a stamping groove, and an electric telescopic rod is fixedly connected to the inner bottom wall of the stamping groove. The output end of the electric telescopic rod passes through the stamping seat and is fixedly connected to a stamping block. The extrusion component is formed by the arrangement of the stamping seat, the stamping groove, and the electric telescopic rod.
[0008] Preferably, an auxiliary plate is fixedly connected to the top of the stamping base, and the top of the auxiliary plate is set in a conical shape. The auxiliary plate is designed to prevent leather scraps from staying on the top of the stamping base.
[0009] Preferably, two crushing rollers are rotatably installed on the inner bottom wall of the feeding box. The two crushing rollers are symmetrically distributed. By setting the crushing rollers, it is convenient to directly crush the leather scraps entering the feeding box, without having to crush the leather scraps in advance through crushing equipment before putting the crushed leather scraps into the feeding box.
[0010] Preferably, a collection plate is fixedly connected to the top of the base, and a collection groove is provided on the top of the collection plate. The collection plate and the collection groove facilitate the collection of extruded leather scraps.
[0011] Preferably, a discharge port communicating with the collection trough is provided on one side of the outer wall of the extrusion disc, and a feeding plate is fixedly connected to one side of the outer wall of the extrusion disc. The discharge port and the feeding plate facilitate the discharge of leather scraps that fall into the collection trough.
[0012] The beneficial effects of this utility model are: This utility model provides a leather scrap recycling and pressing device. Through the setting of a protective mechanism, intermittent feeding ensures that the leather waste has sufficient time to heat while also blocking harmful gases generated during heating. This prevents harmful gases from overflowing from the top of the feeding box and polluting the environment during feeding. The leather scraps are placed into the feeding box and crushed by two crushing rollers before entering the storage tank. The feeding cylinder rotates, and the leather scraps in the storage tank fall into the heating tank. The leather scraps gradually soften, melt, and stick together. An air purifier is activated, and the harmful gases generated by the melting of the leather scraps are sucked out of the feeding box through the suction port, purified, and discharged. An electric telescopic rod drives the stamping block to move, pushing the softened and sticky leather scraps towards the forming hole, where they are extruded into cylindrical leather scrap blocks and discharged from the extrusion plate. Attached Figure Description
[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a perspective view of the present invention; Figure 2 This is a planar cross-sectional structural diagram of the feed box and the extrusion box in this utility model; Figure 3 This is a structural diagram showing the separation of the feed box and the extrusion disc in this utility model; Figure 4 This is a perspective view of the feed cylinder and extrusion disc in this utility model; Figure 5 This is a cross-sectional view of the extrusion disc in this utility model; Legend: 1. Base; 2. Extrusion plate; 3. Feed box; 4. Air purifier; 5. Heating tank; 6. Forming hole; 7. Heating block; 8. Protective mechanism; 81. Baffle; 82. Mounting frame; 83. Feeding cylinder; 84. First motor; 85. Transmission rod; 86. Storage tank; 9. Guide plate; 10. Stamping seat; 11. Stamping groove; 12. Electric telescopic rod; 13. Stamping block; 14. Auxiliary plate; 15. Crushing roller; 16. Collection plate. Detailed Implementation
[0014] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0015] Specific implementation examples are given below.
[0016] Please see Figures 1-5 This utility model provides a leather scrap recycling and pressing device, including a circular base 1; the top of the base 1 is provided with an installation groove, the inner bottom wall of the installation groove is fixedly connected to a second motor, and the output end of the second motor extends out of the installation groove and is rotatably connected to an extrusion plate 2; Two crushing rollers 15 are rotatably installed on the inner bottom wall of the feeding box 3, and two equally symmetrically distributed third motors are fixedly connected to one side of the feeding box 3. The output end of the third motor passes through one end face of the feeding box 3 and is fixedly connected to one end of the crushing rollers 15. The two crushing rollers 15 are driven to rotate by the two third motors. The rotation directions of the two crushing rollers 15 driven by the two third motors should be opposite to ensure the crushing of leather scraps. The two crushing rollers 15 are symmetrically distributed. By setting the crushing roller 15, it is convenient to directly crush the leather scraps entering the feed box 3, without having to crush the leather scraps in advance through the crushing equipment and then put the crushed leather scraps into the feed box 3. A rectangular feed box 3 is fixedly connected to the top of the extrusion plate 2. An air purifier 4 is installed on one side of the feed box 3. The air purifier 4 can be a Midea RX600Pro. A suction port is opened on one side of the feed box 3, and the suction port corresponds to the position of the air purifier 4. The top of the extrusion plate 2 is provided with a circular heating groove 5. One side of the outer wall of the extrusion plate 2 is provided with 12 annular cylindrical forming holes 6 that are adapted to the heating groove 5. Heating blocks 7 are installed in the heating groove 5. Multiple heating blocks 7 are provided. Heating wires are built into the heating blocks 7. The specific power supply and control methods are existing mature technologies, which will not be elaborated here. Multiple heating blocks 7 are evenly distributed on the inner side wall and inner bottom wall of the heating groove 5. The extrusion plate 2 is provided with an extrusion component, which includes a stamping seat 10 fixedly connected to the bottom wall of the heating tank 5. A stamping groove 11 is opened in the stamping seat 10. An electric telescopic rod 12 is fixedly connected to the inner bottom wall of the stamping groove 11. The output end of the electric telescopic rod 12 passes through the stamping seat 10 and is fixedly connected to a stamping block 13. The extrusion component is formed by the arrangement of the stamping seat 10, the stamping groove 11 and the electric telescopic rod 12.
[0017] An auxiliary plate 14 is fixedly connected to the top of the stamping base 10. The top of the auxiliary plate 14 is set in a conical shape. The auxiliary plate 14 is designed to prevent leather scraps from staying on the top of the stamping base 10. A guide plate 9 is fixedly connected to the inner side wall of the feeding box 3. The guide plate 9 is inclined. There are two guide plates 9, and the two guide plates 9 are symmetrically distributed relative to the feeding cylinder 83, so as to guide the leather scraps entering the feeding box 3 and ensure that they enter the storage tank 86. A collection plate 16 is fixedly connected to the top of the base 1. A collection groove is provided on the top of the collection plate 16. The collection plate 16 and the collection groove facilitate the collection of extruded leather scraps.
[0018] The outer wall of the extrusion plate 2 has a discharge port connected to the collection trough on one side, and a feeding plate is fixedly connected to one side of the outer wall of the base 11. The discharge port and the feeding plate facilitate the discharge of leather scraps that fall into the collection trough. The feed box 3 is equipped with a protective mechanism 8, which includes two rectangular baffles 81 fixedly connected to the inner wall of the feed box 3. A cylindrical feed cylinder 83 is rotatably connected to one side of the inner wall of the feed box 3 via a rotating shaft. An arc-shaped fitting groove adapted to the feed cylinder 83 is opened on the side of the baffle 81 near the feed cylinder 83. The two baffles 81 are symmetrically distributed relative to the feed cylinder 83. The inner wall of the fitting groove abuts against the outer wall of the feed cylinder 83 to ensure that the feed cylinder 83 is sealed during the rotation of the feed cylinder 83. The other end of the feeding cylinder 83 is fixedly connected to a transmission rod 85. A rectangular storage trough 86 is opened on one side of the outer wall of the feeding cylinder 83. A U-shaped mounting bracket 82 is fixedly connected to one side of the feeding box 3. A first motor 84 is fixedly connected to the inner wall of the mounting bracket 82. One end of the transmission rod 85 passes through the feeding box 3 and communicates with the outside. The output end of the first motor 84 is fixedly connected to the transmission rod 85. With the protective mechanism 8 in place, the material can be fed intermittently, ensuring that the leather waste can be heated for a sufficient time. At the same time, it can also block the harmful gases generated during heating, ensuring that the harmful gases will not overflow from the top of the feeding box 3 and pollute the environment during feeding.
[0019] Based on the above structure, the present invention includes the following implementation process: The second motor is started to drive the extrusion disc 2 to rotate. Two third motors are started to drive the two crushing rollers 15 to rotate in opposite directions. The first motor 84 is started to drive the feeding cylinder 83 to rotate at a constant speed. Multiple heating blocks 7 are started to preheat in the heating tank 5 and raise the temperature in the heating tank 5 to about 200 degrees. At the same time, the air purifier 4 is started to extract air from the feeding box 3 through the suction port. Leather scraps are fed into the feed box 3 through the opening at the top of the feed box 3, and are crushed into smaller volumes by two crushing rollers 15. The crushed leather scraps fall between two guide plates 9 and are guided to the feed cylinder 83. When the feed cylinder 83 rotates at a constant speed and the opening of the storage trough 86 on it faces upward, the crushed leather scraps enter the storage trough 86 and gradually fill the storage trough 86. The feeding cylinder 83 continues to rotate about 150-180 degrees, so that the opening of the storage tank 86 faces downward. At this time, the leather scraps in the storage tank 86 are separated from the storage tank 86 and fall into the heating tank 5. Under the heating of multiple heating blocks 7, the leather scraps gradually soften and melt, and gradually stick together. The air purifier 4 is activated to draw out the harmful gas generated by the melting of the leather scraps through the suction port and purify it before discharge. With the baffle 81 sealing the feeding cylinder 83, the harmful gas can only be discharged from the suction port, ensuring that no harmful gas is discharged from the feeding tank 3. Activate 12 electric telescopic rods 12, which drive the stamping block 13 to move. The stamping block 13 pushes the softened and adhered leather scraps towards the forming hole 6, and squeezes them into cylindrical leather scrap blocks through the forming hole 6, reducing the volume of the leather scraps. After being discharged from the extrusion plate 2, the cylindrical leather scraps will break under their own weight and fall onto the base 1, where they are limited by the collection plate 16 for unified discharge.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A leather scrap recycling and pressing device, characterized in that: Includes a base (1); the top of the base (1) is rotatably connected to an extrusion plate (2), the top of the extrusion plate (2) is fixedly connected to a feed box (3), an air purifier (4) is installed on one side of the feed box (3), a suction port is opened on one side of the feed box (3), a heating groove (5) is opened on the top of the extrusion plate (2), a forming hole (6) adapted to the heating groove (5) is opened on one side of the outer wall of the extrusion plate (2), an extrusion part is provided on the extrusion plate (2), and a heating block (7) is installed in the heating groove (5); The feed box (3) is provided with a protective mechanism (8). The protective mechanism (8) includes a baffle (81) fixedly connected to the inner wall of the feed box (3). A feeding cylinder (83) is rotatably connected to one side of the inner wall of the feed box (3) via a rotating shaft. A transmission rod (85) is fixedly connected to the other end of the feeding cylinder (83). A storage trough (86) is opened on one side of the outer wall of the feeding cylinder (83). A mounting frame (82) is fixedly connected to one side of the feed box (3). A first motor (84) is fixedly connected to the inner wall of the mounting frame. One end of the transmission rod (85) passes through the feed box (3) and communicates with the outside. The output end of the first motor (84) is fixedly connected to the transmission rod (85).
2. The leather scrap recycling and pressing device according to claim 1, characterized in that: The inner wall of the feed box (3) is fixedly connected to a guide plate (9), which is inclined.
3. The leather scrap recycling and pressing device according to claim 2, characterized in that: The extrusion part includes a stamping seat (10) fixedly connected to the bottom wall of the heating tank (5). A stamping groove (11) is provided in the stamping seat (10). An electric telescopic rod (12) is fixedly connected to the bottom wall of the stamping groove (11). The output end of the electric telescopic rod (12) passes through the stamping seat (10) and is fixedly connected to a stamping block (13).
4. The leather scrap recycling and pressing device according to claim 3, characterized in that: An auxiliary plate (14) is fixedly connected to the top of the stamping seat (10), and the top of the auxiliary plate (14) is set in a conical shape.
5. The leather scrap recycling and pressing device according to claim 4, characterized in that: Two crushing rollers (15) are rotatably mounted on the inner bottom wall of the feed box (3), and the two crushing rollers (15) are symmetrically distributed.
6. The leather scrap recycling and pressing device according to claim 5, characterized in that: A collection plate (16) is fixedly connected to the top of the base (1), and a collection groove is provided on the top of the collection plate (16).
7. The leather scrap recycling and pressing device according to claim 6, characterized in that: The extrusion plate (2) has a discharge port connected to the collection trough on one side of its outer wall, and a feeding plate is fixedly connected to one side of the outer wall of the base (1).