A genuine leather crushing, recycling and reuse equipment and process

Abstract

This invention discloses a genuine leather crushing, recycling, and reuse equipment and process, relating to the field of genuine leather recycling technology. It includes a crushing box and a separation box. A drying mechanism above the crushing box comprises two sets of drying components and a V-shaped frame. The drying components are symmetrically slidably mounted on a first support of a support frame, and the V-shaped frame is longitudinally slidably mounted on the first support. A storage box is rotatably mounted on the V-shaped frame. The V-shaped frame drives the two sets of drying components to close and dry the genuine leather on the storage box. A flipping component flips the storage box, pouring the genuine leather into the crushing box. Inside the crushing box, coarse and fine crushing rollers perform secondary crushing of the genuine leather. Qualified genuine leather, screened by a sieve basket, falls into a collection box through a separation box. Multiple sets of conveying components are evenly arranged on the chain of a sprocket. The sieve basket conveys unqualified genuine leather back to the crushing box for repeated crushing via the conveying components. This invention has a high degree of automation, improves crushing efficiency and quality, and is highly practical.

Description

Technical Field

[0001] This invention relates to the field of genuine leather recycling technology, and in particular to a device for crushing, recycling and reusing genuine leather. Background Technology

[0002] The production of leather products generates a large amount of scraps, defective products, and waste genuine leather materials. If these wastes are discarded directly, it will not only waste resources, but also pollute the environment due to the chemical components in the leather (such as tanning agents and dyes).

[0003] Traditional leather shredding requires multiple processes, and the resulting pieces vary in size, necessitating sorting before reuse. Furthermore, existing leather shredding devices are complex in structure, cumbersome to operate, and impractical, often resulting in incomplete shredding. Therefore, there is an urgent need for a more automated leather shredding, recycling, and reuse equipment. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention adopts the following technical solution: a genuine leather crushing, recycling, and reuse device, comprising a conveying frame and a support frame of the main structure. A crushing box and a separation box are sequentially arranged on the support frame. A drying mechanism is located above the crushing box. The drying mechanism includes two sets of drying components and a U-shaped frame. The drying components are symmetrically and slidably mounted on the first support of the support frame. The U-shaped frame is longitudinally and slidably mounted on the first support. A storage box is rotatably mounted on the U-shaped frame. The U-shaped frame drives the two sets of drying components to close and dry the genuine leather on the storage box. A flipping component on the U-shaped frame flips the storage box, pouring the genuine leather into the crushing box for coarse and fine crushing. A screening basket is oscillating below the crushing box. The screening basket filters out qualified genuine leather fragments, which fall into a collection box below through the separation box. A conveying mechanism is provided on the conveying frame, conveying the screening basket to the conveying components of the conveying mechanism via a lower conveying plate on the support frame. The conveying components then convey the unqualified genuine leather to the crushing box for repeated crushing via a receiving plate on the support frame.

[0005] Furthermore, the drying mechanism also includes a drying spring and two sets of closing springs. The drying spring is disposed between the first support and the U-shaped frame, and is slidably mounted on the first support. The U-shaped frame is symmetrically equipped with a positioning rod, an inclined rod, and a limiting rod. The positioning rod, inclined rod, and limiting rod respectively contact and engage with the drying rack of the drying assembly. During this process, the two sets of drying assemblies are driven to close. The sliding rod of the drying assembly is laterally slidably mounted on the first support. The closing spring is disposed between the first support and the drying assembly, and is slidably mounted on the sliding rod. When the leather to be recycled is placed on the storage box, under the action of gravity, the U-shaped frame slides downwards on the first support, the drying spring is compressed, the positioning rod loses contact with the drying rack, the inclined rod contacts the drying rack and pushes the two sets of drying assemblies to move towards each other, the closing spring is compressed until the limiting rod contacts the drying rack, and the two sets of drying assemblies close. At this time, the two sets of limiting rods restrict the movement of the drying assemblies.

[0006] Furthermore, the drying assembly is equipped with a contact switch. When both sets of drying assemblies are closed, the contact switch is closed, and the drying assembly is activated to dry the leather on the storage box. When the two sets of drying assemblies are disconnected, the contact switch is disconnected, and the drying assembly stops drying.

[0007] Furthermore, the flipping assembly includes a driven gear and a flipping motor. The driven gear is rotatably mounted on the rack and fixedly mounted to the rotation shaft of the storage box. The flipping motor is fixedly mounted on a limit rod, and a driving gear is fixedly mounted on the output shaft of the flipping motor. The driving gear meshes with the driven gear. A displacement sensor is installed on the flipping motor and is electrically connected to it. The displacement sensor controls the flipping assembly to drive the storage box to rotate one revolution. The displacement sensor controls the start and stop of the flipping motor. During the addition and drying process of the leather on the storage box, the displacement of the rack and the storage box changes under the elastic action of the drying spring. At this time, the displacement sensor controls the flipping motor to turn off until the leather on the storage box is completely dried. At this time, the storage box is in a stationary state. The displacement sensor then controls the flipping motor to start, which drives the driving gear to rotate. The driving gear drives the driven gear to rotate. The driven gear rotates one revolution, and the driven gear drives the storage box to rotate one revolution. The dried leather inside the storage box falls into the crushing box below.

[0008] Furthermore, the crushing chamber contains two sets of coarse crushing rollers and multiple sets of fine crushing rollers. The multiple sets of fine crushing rollers are positioned below the two sets of coarse crushing rollers. The two sets of coarse crushing rollers cooperate to crush the leather, with their coarse crushing gears meshing. The multiple sets of fine crushing rollers also cooperate to crush the leather, with their fine crushing gears meshing. A crushing assembly is positioned between the coarse and fine crushing rollers. This assembly includes two sets of crushing wheels and a crushing belt. One set of crushing wheels is fixedly installed with one set of coarse crushing rollers, and the other set is fixedly installed with one set of fine crushing rollers. The crushing belt is positioned on both sets of crushing wheels. When one set of coarse crushing rollers rotates, the meshing of its coarse crushing gears drives the other set of coarse crushing rollers to rotate, which in turn drives the crushing wheel fixedly installed with the coarse crushing rollers to rotate. The crushing belt then drives the crushing wheel fixedly installed with the fine crushing rollers to rotate, and the meshing of its fine crushing gears drives the multiple sets of fine crushing rollers to rotate. The two sets of coarse crushing rollers perform primary crushing of the leather, while the multiple sets of fine crushing rollers perform secondary crushing of the leather.

[0009] Furthermore, a screening gear is rotatably mounted on the support frame. The teeth of the screening gear engage with a rocker arm at the end of the screening basket. The screening basket is rotatably mounted on the second bracket of the support frame. A torsion spring is installed between the rotating shaft of the screening basket and the second bracket. A lower feeding plate is located at the tail end of the screening basket. When the screening gear rotates, the rocker arm drives the screening basket to swing on the second bracket. The tail end of the screening basket tilts towards the lower feeding plate. During the swinging and tilting process, leather that meets the crushing standard falls from the screen holes on the screening basket into the evacuation box below. Leather that does not meet the crushing standard slides into the lower feeding plate during tilting and falls into the conveying drawer of the conveying assembly below the lower feeding plate. The torsion spring assists the screening basket in returning to its initial position.

[0010] Furthermore, the conveying mechanism includes two sets of sprockets, chains, and multiple sets of conveying components. The sprockets are rotatably mounted on the conveying frame, the chains are set on the two sets of sprockets, and the multiple sets of conveying components are evenly arranged on the chains. Each conveying component includes a rectangular plate and a conveying drawer. The rectangular plate is fixedly mounted on the chain, and a conveying spring is provided between the rectangular plate and the conveying drawer. One end of the conveying spring is fixedly mounted to the rectangular plate, and the other end of the conveying spring is fixedly mounted to the conveying drawer. A third bracket is provided at the top of the support frame. The receiving plate and the flipping column overlap in the vertical direction. The third bracket contacts and cooperates with the flipping columns on both sides of the conveying drawer to convey the substandard leather in the conveying drawer to the receiving plate. When the sprocket rotates, it drives the chain drive, which in turn drives the conveyor assembly to move above the receiving plate. After the conveyor drawer moves above the receiving plate, the tilting column of the conveyor drawer contacts the third support. As the chain drives, the third support restricts the movement of the conveyor drawer, the conveyor spring deforms, and the conveyor drawer tilts. The vertical overlap between the receiving plate and the tilting column facilitates the conveying of substandard leather from the conveyor drawer to the receiving plate, where it enters the crushing box for repeated crushing.

[0011] Furthermore, sliders are fixedly installed at both ends of the receiving plate, and the sliders are slidably mounted on the fifth bracket of the support frame. A relief spring is provided between the slider and the fifth bracket. Receiving columns are symmetrically arranged on the receiving plate. The relief rod of the conveying assembly contacts and engages with the receiving column. The relief rod pushes the receiving plate towards the crushing box through the receiving column. Since the receiving plate and the conveying drawer overlap in the vertical direction, the receiving plate interferes with the movement of the conveying drawer as it moves upwards towards the receiving plate. As the conveying drawer of the conveying assembly moves upwards towards the receiving plate, the relief rod of the conveying assembly contacts the receiving column, pushing the receiving plate towards the crushing box. The receiving plate drives the slider to slide on the fifth bracket, compressing the relief spring, thereby breaking the overlap between the receiving plate and the conveying drawer. This facilitates the movement of the leather in the conveying drawer to the top of the receiving plate. After the conveying drawer moves to the top of the receiving plate, the relief rod breaks contact with the receiving column, and the receiving plate and slider return to their initial positions under the elastic action of the relief spring.

[0012] Furthermore, a cone-shaped body is provided above the evacuation box, and a drying component is provided outside the evacuation box. The collection box is mounted on the fourth support of the support frame. The cone-shaped body disperses the qualified leathers sieved from the screening basket into the evacuation box, preventing blockage at the bottom of the evacuation box. At the same time, it facilitates the drying component to further dry the qualified leathers inside the evacuation box, preventing the drying component from not thoroughly drying the leathers on the storage box and improving drying efficiency.

[0013] This invention also discloses a process for the crushing, recycling, and reuse of genuine leather, using the aforementioned equipment, comprising the following steps:

[0014] Step 1: Place the leather to be broken on the storage box. Under the weight of the leather, the storage box and the rack slide longitudinally, the drying spring is compressed, and the rack drives the two sets of drying components to move towards each other. The closing spring is compressed until the two sets of drying components close, and the drying components dry the leather on the storage box.

[0015] Step 2: As the moisture in the leather decreases, the weight on the storage box decreases, and the drying spring extends. During this process, the closing spring remains stationary until the leather is dried. The Z-shaped frame then breaks free from its restriction on the drying assembly, the closing spring extends, and the drying assembly opens and closes. The displacement sensor controls the flipping assembly to drive the storage box to rotate one revolution.

[0016] Step 3: The leather falls into the crushing box, where the coarse crushing roller and the fine crushing roller crush the leather in turn. The crushed leather falls into the screening basket, and the screening gear drives the screening basket to swing. The qualified leather falls into the separation box below, while the unqualified leather falls into the conveying drawer below the lower feeding plate through the lower feeding plate.

[0017] Step 4: The chain drives the conveyor assembly to move above the receiving plate, and the positioning rod breaks the interference of the receiving plate until the conveyor drawer is above the receiving plate. The third bracket and the tilting column work together to convey the unqualified leather through the receiving plate to the crushing box for repeated crushing.

[0018] Step 5: The cone-shaped body disperses the qualified leathers sieved from the screening basket into the separation box. The drying component further dries the qualified leathers inside the separation box. The dried qualified leathers fall into the collection box, which is replaced in time after collection is completed.

[0019] The advantages of this invention compared with the prior art are: (1) This invention is equipped with a drying mechanism, which automatically dries and stops drying by utilizing the gravity of the leather, and can control the drying components to prevent ineffective drying. It is simple to operate and has a high degree of automation; (2) This invention is equipped with a screening mechanism, which uses screening gears to drive the screening basket to swing, screening qualified and unqualified broken leather, ensuring the quality of the crushing, and the automated screening improves the crushing efficiency; (3) This invention is equipped with a conveying mechanism, which utilizes the cooperation of the conveying components with the lower feeding plate and the receiving plate. The high-quality conveying of unqualified broken leather was completed, ensuring the specifications of the broken leather. The screening basket was replaced according to the specifications of the broken leather, and the size of the screen holes on the screening basket was changed. No manual sorting was required, and it was highly practical. (4) The present invention is equipped with a cone and a drying component. The cone disperses the qualified leather screened by the screening basket into the separation box, preventing the bottom of the separation box from being blocked. At the same time, it facilitates the drying component to further dry the qualified leather inside the separation box, preventing the drying component from drying the leather on the storage box incompletely, and improving the drying efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective.

[0021] Figure 2 It is the front view of the present invention.

[0022] Figure 3 This is the right view of the present invention.

[0023] Figure 4 for Figure 3 Cross-sectional view along the AA direction.

[0024] Figure 5 for Figure 3 Cross-sectional view along the BB direction.

[0025] Figure 6 for Figure 3 Cross-sectional view along the CC direction.

[0026] Figure 7 for Figure 1 A magnified view of part D in the middle.

[0027] Figure 8 for Figure 2 A magnified view of part E in the middle.

[0028] Figure 9 for Figure 4 A magnified view of part F in the middle.

[0029] Figure 10 for Figure 5 A magnified view of part G in the middle.

[0030] Figure 11 for Figure 2 A magnified view of part H in the middle.

[0031] Figure 12 for Figure 6 A magnified view of part I in the middle.

[0032] Reference numerals: 11-Base plate; 12-Conveyor frame; 13-Support frame; 14-Crushing box; 15-Separation box; 16-Guide frame; 17-Drying component; 131-First support; 132-Second support; 133-Third support; 134-Fourth support; 135-Fifth support; 21-Drying assembly; 22-Closing spring; 23-Z-shaped frame; 24-Storage box; 25-Drying spring; 26-Tilting assembly; 211-Drying rack; 212-Slide rod; 231-Positioning rod; 232-Inclined rod; 233-Limiting rod; 261-Driven gear; 262-Driving gear; 263-Tilting motor; 31-Coarse crushing roller; 32-Fine crushing roller; 33-Crushing... Components; 34-Driven component; 35-Transmission component; 36-Crushing motor; 311-Coarse crushing gear; 321-Fine crushing gear; 331-Crushing wheel; 332-Crushing belt; 341-Driven wheel; 342-Driven belt; 351-Transmission wheel; 352-Transmission belt; 41-Screwing basket; 42-Screwing gear; 43-Lowering plate; 44-Receiving plate; 45-Slider; 46-Relief spring; 411-Rock arm; 151-Conical body; 441-Receiving column; 51-Sprocket; 52-Chain; 53-Conveying component; 531-Relief rod; 532-Conveying spring; 533-Conveying drawer; 534-Rectangular plate; 6-Collection box; 5331-Tilting column. Detailed Implementation

[0033] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] Example: Figures 1-12The illustrated leather crushing, recycling, and reuse equipment includes a main structure with a conveyor frame 12 and a support frame 13. A crushing box 14 and a separation box 15 are sequentially arranged on the support frame 13. A drying mechanism is located above the crushing box 14. The drying mechanism includes two sets of drying components 21 and a U-shaped frame 23. The drying components 21 are symmetrically and slidably mounted on the first support 131 of the support frame 13. The U-shaped frame 23 is longitudinally and slidably mounted on the first support 131. A storage box 24 is rotatably mounted on the U-shaped frame 23. The U-shaped frame 23 drives the two sets of drying components 21 to close and dry the leather on the storage box 24. The flipping component 26 on the frame 23 flips the storage box 24, pouring the leather into the crushing box 14 for coarse and fine crushing. A screening basket 41 is oscillating below the crushing box 14. The screening basket 41 screens qualified leather fragments and they fall into the collection box 6 below through the separation box 15. A conveying mechanism is provided on the conveying frame 12. The screening basket 41 is conveyed to the conveying component 53 of the conveying mechanism through the lower conveying plate 43 on the support frame 13 to crush unqualified leather. The conveying component 53 conveys the unqualified leather to the crushing box 14 for repeated crushing through the receiving plate 44 on the support frame 13.

[0035] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 11 , Figure 12 As shown, the main structure includes a base plate 11, a conveyor frame 12, a support frame 13, a crushing box 14, a separation box 15, two sets of guide frames 16, and a drying component 17. The conveyor frame 12 and the support frame 13 are respectively fixedly installed on the base plate 11. The two sets of guide frames 16 are symmetrically fixedly installed on the support frame 13. The guide frames 16 guide the dried leather into the crushing box 14. The crushing box 14 and the separation box 15 are respectively fixedly installed on the support frame 13. The support frame 13 is provided with a first bracket 131, a second bracket 132, a third bracket 133, a fourth bracket 134, and a fifth bracket 135. The guide frames 16 are positioned above the crushing box 14, and the separation box 17... Box 15 is located below crushing box 14, and a cone 151 is located above evacuation box 15. Drying component 17 is located outside evacuation box 15 and is fixedly installed on support frame 13. Collection box 6 is located on fourth support 134. Cone 151 disperses qualified leather sieved by screening basket 41 into evacuation box 15 to prevent blockage at the bottom of evacuation box 15. At the same time, it facilitates further drying of qualified leather inside evacuation box 15 by drying component 17, preventing incomplete drying of leather on storage box 24 by drying component 21 and improving drying efficiency. Qualified leather after drying falls into collection box 6, which is replaced in time after collection.

[0036] like Figure 1 , Figure 7As shown, the drying mechanism is located between the guide frame 16 and the crushing box 14. The drying mechanism includes two sets of drying components 21, two sets of closing springs 22, a U-shaped frame 23, a storage box 24, and drying springs 25. The two sets of drying components 21 are symmetrically slidably mounted on the first support 131 of the support frame 13. One set of closing springs 22 corresponds to one set of drying components 21 and is located between the first support 131 and the drying components 21. The closing springs 22 are slidably mounted on the slide rod 212. The U-shaped frame 23 is longitudinally slidably mounted on the first support 131. The drying springs 25 are located between the first support 131 and the U-shaped frame 23. 5. Slidingly mounted on the first support 131, the U-shaped frame 23 is symmetrically equipped with positioning rods 231, inclined rods 232, and limiting rods 233. The positioning rods 231, inclined rods 232, and limiting rods 233 respectively contact the drying rack 211 of the drying assembly 21. During the operation, the two sets of drying assemblies 21 are driven to close. The storage box 24 is rotatably mounted on the U-shaped frame 23 and is positioned between the two sets of guide frames 16. When no leather is placed on the storage box 24, the initial position of the closing spring 22 is in a preliminary compressed state. When leather to be recycled is placed on the storage box 24, under the action of gravity, the U-shaped frame 23 is pushed down on the first support 131. When the drying spring 25 is compressed, the positioning rod 231 disconnects from the drying rack 211, and the inclined rod 232 contacts the drying rack 211, pushing the two sets of drying components 21 to move towards each other. The closing spring 22 is further compressed until the limiting rod 233 contacts the drying rack 211, and the two sets of drying components 21 close. At this time, the two sets of limiting rods 233 restrict the movement of the drying components 21. A contact switch is provided on the drying component 21. When the two sets of drying components 21 close, the contact switch closes, and the drying component 21 starts to dry the leather on the storage box 24. When the two sets of drying components 21 disconnect, the contact switch opens, and the drying component 21 stops drying. As the moisture content of the leather in the storage box 24 decreases, the weight of the leather on the storage box 24 decreases, and the drying spring 25 slowly extends. During this process, the limiting rod 233 contacts the drying rack 211, and the limiting rod 233 restricts the position of the drying component 21, so that the contact switch of the drying component 21 is in the closed state, and the leather on the storage box 24 continues to dry, while the closing spring 22 is in the stationary state. Until the leather on the storage box 24 is dried, the limiting rod 233 disconnects from the drying rack 211, the closing spring 22 extends, the drying rack 211 slides to the drying rack 211 via the inclined rod 232, the two sets of drying components 21 move in opposite directions, the contact switch is opened, and drying stops.

[0037] like Figure 1 , Figure 7As shown, the drying mechanism also includes a flipping assembly 26, which is disposed between the storage box 24 and the vault 23. The flipping assembly 26 includes a driven gear 261 and a flipping motor 263. The driven gear 261 is rotatably mounted on the vault 23 and is fixedly mounted to the rotation shaft of the storage box 24. The flipping motor 263 is fixedly mounted on the limit rod 233. A driving gear 262 is fixedly mounted on the output shaft of the flipping motor 263, and the driving gear 262 meshes with the driven gear 261. A displacement sensor is provided on the flipping motor 263, and the flipping motor 263 is electrically connected to the displacement sensor. The displacement sensor drives the storage box 24 to rotate one revolution by controlling the flipping assembly 26. The device controls the start and stop of the flip motor 263. During the addition and drying process of the leather on the storage box 24, the displacement of the rack 23 and the storage box 24 changes under the elastic action of the drying spring 25. During this process, the displacement sensor controls the flip motor 263 to turn off until the leather on the storage box 24 is dried. At this time, the position of the storage box 24 is in a stable state. The displacement sensor controls the flip motor 263 to start. The flip motor 263 drives the drive gear 262 to rotate. The drive gear 262 drives the driven gear 261 to rotate. The driven gear 261 rotates one revolution. The driven gear 261 drives the storage box 24 to rotate one revolution. The dried leather inside the storage box 24 falls into the crushing box 14 below.

[0038] like Figure 2 , Figure 4 , Figure 5 , Figure 8 , Figure 9 , Figure 10As shown, the crushing mechanism is located inside the crushing box 14. The crushing mechanism includes two sets of coarse crushing rollers 31, multiple sets of fine crushing rollers 32, a crushing assembly 33, and a crushing motor 36. The crushing motor 36 is fixedly mounted on the crushing box 14. The two sets of coarse crushing rollers 31 are symmetrically rotated and installed inside the crushing box 14. One set of coarse crushing rollers 31 is fixedly mounted to the output shaft of the crushing motor 36. The crushing motor 36 drives the coarse crushing rollers 31 on its output shaft to rotate. The two sets of coarse crushing rollers 31 cooperate to crush the leather. Coarse crushing gears 311 are provided on the coarse crushing rollers 31. The coarse crushing gears 311 of the coarse crushing rollers 31 are located outside the crushing box 14. The coarse crushing gears 311 of the two sets of coarse crushing rollers 31 mesh with each other. Under the meshing action of the coarse crushing gears 311, the two sets of coarse crushing rollers 31 rotate synchronously to coarsely crush the leather. Multiple sets of fine crushing rollers 32 are located below the two sets of coarse crushing rollers 31. The fine crushing rollers 32 are sequentially rotated and installed inside the crushing box 14. Adjacent sets of fine crushing rollers 32 are aligned with each other. The crushing mechanism consists of a fine crushing roller 32 with a fine crushing gear 321 mounted on it. The fine crushing gear 321 is located outside the crushing box 14. The fine crushing gears 321 of two adjacent sets of fine crushing rollers 32 mesh with each other. Under the meshing action of the fine crushing gears 321, multiple sets of fine crushing rollers 32 rotate synchronously to finely crush the leather. The crushing assembly 33 is located between the coarse crushing roller 31 and the fine crushing roller 32. The crushing assembly 33 includes two sets of crushing wheels 331 and a crushing belt 332. One set of crushing wheels 331 is fixedly installed with one set of coarse crushing rollers 31, and the other set of crushing wheels 331 is fixedly installed with one set of fine crushing rollers 32. The crushing belt 332 is mounted on the two sets of crushing wheels 331. The coarse crushing roller 31 drives the crushing wheel 331 fixedly installed with it to rotate. Under the transmission action of the crushing belt 332, the crushing wheel 331 fixedly installed with the fine crushing roller 32 is driven to rotate. Under the meshing action of the fine crushing gears 321, multiple sets of fine crushing rollers 32 are driven to rotate.

[0039] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 9 , Figure 10As shown, the screening mechanism includes a screening basket 41, a screening gear 42, and a lower feeding plate 43. The screening basket 41 is positioned between the crushing box 14 and the separation box 15. The screening basket 41 is rotatably mounted on the second bracket 132 of the support frame 13. A torsion spring is provided between the rotating shaft of the screening basket 41 and the second bracket 132 to assist the screening basket 41 in returning to its initial position. The screening gear 42 is rotatably mounted on the support frame 13, and the teeth of the screening gear 42 are in contact with the rocker arm 411 at the end of the screening basket 41. The lower feeding plate 43 is located at the tail end of the screening basket 41 and is fixedly mounted on the support frame 13. When the screening gear 42 rotates, it drives the screening basket 41 to swing on the second bracket 132 through the rocker arm 411. The tail end of the screening basket 41 tilts towards the lower feeding plate 43. During the swinging and tilting process, the screening basket 41... In the process, genuine leather that meets the crushing standard falls from the sieve holes on the screening basket 41 into the lower evacuation box 15. Genuine leather that does not meet the crushing standard slides into the lower feeding plate 43 when tilted and falls into the conveying drawer 533 of the conveying assembly 53 below the lower feeding plate 43. A transmission assembly 35 is provided between the screening gear 42 and one of the fine crushing rollers 32. The transmission assembly 35 includes two sets of transmission wheels 351 and a transmission belt 352. One set of transmission wheels 351 is fixedly installed with one set of fine crushing rollers 32, and the other set of transmission wheels 351 is fixedly installed with the screening gear 42. The transmission belt 352 is set on the two sets of transmission wheels 351. When the fine crushing rollers 32 rotate, they drive the transmission wheels 351 fixedly installed with them to rotate. Under the transmission action of the transmission belt 352, the other set of transmission wheels 351 and the screening gear 42 rotate.

[0040] like Figure 2 , Figure 3 , Figure 4 , Figure 11As shown, the conveying mechanism includes two sets of sprockets 51, a chain 52, and multiple sets of conveying components 53. The two sets of sprockets 51 are rotatably mounted on the conveying frame 12, and the chain 52 is disposed on the two sets of sprockets 51. A driven component 34 is disposed between the chain 52 and the coarse crushing roller 31. The driven component 34 includes two sets of driven wheels 341 and a driven belt 342. One set of driven wheels 341 is fixedly mounted to one set of sprockets 51, and the other set of driven wheels 341 is fixedly mounted to one set of coarse crushing rollers 31. The driven belt 342 is disposed between the two sets of sprockets 51 and the coarse crushing roller 31. On the driven wheel 341, when the coarse crushing roller 31 rotates, it drives the driven wheel 341 fixedly installed thereto to rotate. Under the transmission action of the driven belt 342, it drives another set of driven wheels 341 and the sprocket 51 fixedly installed thereto to rotate. When the sprocket 51 rotates, it drives the chain 52 to drive. The conveying assembly 53 is evenly fixedly installed on the chain 52. When the chain 52 drives, it drives the conveying assembly 53 to move. The conveying assembly 53 includes a relief rod 531, a conveying spring 532, a conveying tray 533 and a rectangular plate 534. 34 is fixedly installed on chain 52, and clearance rod 531 is fixedly installed on rectangular plate 534. Conveyor spring 532 is disposed between rectangular plate 534 and conveyor drawer 533. One end of conveyor spring 532 is fixedly installed on rectangular plate 534, and the other end of conveyor spring 532 is fixedly installed on conveyor drawer 533. Support plate 44 and tilting column 5331 overlap vertically. The third bracket 133 at the top of support frame 13 contacts and engages with tilting columns 5331 on both sides of conveyor drawer 533. Chain 52 drives conveyor assembly. 53 moves above the receiving plate 44. After the conveyor drawer 533 moves above the receiving plate 44, the tilting column 5331 of the conveyor drawer 533 contacts the third support 133. With the transmission of the chain 52, the third support 133 restricts the movement of the conveyor drawer 533. The conveying spring 532 deforms, and the conveyor drawer 533 tilts. The vertical overlap of the receiving plate 44 and the tilting column 5331 facilitates the conveying of unqualified leather in the conveyor drawer 533 to the receiving plate 44 and into the crushing box 14 for repeated crushing.

[0041] like Figure 2 , Figure 6 , Figure 11 , Figure 12As shown, the screening mechanism also includes a receiving plate 44, a slider 45, and a relief spring 46. The receiving plate 44 is disposed between the drying assembly 21 and the crushing box 14. The receiving plate 44 is fixedly mounted on the slider 45, and the slider 45 is slidably mounted on the fifth bracket 135 of the support frame 13. The relief spring 46 is disposed between the slider 45 and the fifth bracket 135. Receiving columns 441 are symmetrically arranged on the receiving plate 44. The relief rod 531 of the conveying assembly 53 contacts and engages with the receiving column 441. The relief rod 531 pushes the receiving plate 44 towards the crushing box 14 through the receiving column 441. Because the receiving plate 44 and the conveying drawer 533 overlap vertically, the conveying drawer 533 moves upwards above the receiving plate 44. During the process, the receiving plate 44 interferes with the movement of the conveying drawer 533; as the conveying drawer 533 of the conveying assembly 53 moves above the receiving plate 44, the relief rod 531 of the conveying assembly 53 contacts the receiving column 441, pushing the receiving plate 44 to move towards the crushing box 14. The receiving plate 44 drives the slider 45 to slide on the fifth bracket 135, and the relief spring 46 is compressed, thereby causing the receiving plate 44 to break away from the overlapping part with the conveying drawer 533, making it easier for the leather in the conveying drawer 533 to move above the receiving plate 44. After the conveying drawer 533 moves above the receiving plate 44, the relief rod 531 breaks contact with the receiving column 441, and the receiving plate 44 and the slider 45 return to their initial positions under the elastic action of the relief spring 46.

[0042] Working principle: When no leather is placed on the storage box 24, the initial position of the closing spring 22 is in a preliminary compressed state. The positioning rod 231 of the U-shaped frame 23 restricts the position of the two sets of drying components 21. When the leather to be recycled is placed on the storage box 24, under the action of gravity, the U-shaped frame 23 is pushed to slide downward on the first support 131, the drying spring 25 is compressed, the positioning rod 231 is disconnected from the drying rack 211, the inclined rod 232 contacts the drying rack 211 and pushes the two sets of drying components 21 to move towards each other, the closing spring 22 is further compressed until the limiting rod 233 contacts the drying rack 211, the two sets of drying components 21 are closed. At this time, the two sets of limiting rods 233 restrict the movement of the drying components 21. When the two sets of drying components 21 are closed, the contact switch on the drying component 21 is closed, and the drying component 21 is activated to dry the leather. The leather on box 24 is dried. As the moisture content of the leather on box 24 decreases, the weight of the leather on box 24 decreases, the drying spring 25 slowly extends, and the rack 23 and box 24 gradually rise. During this process, the limiting rod 233 contacts the drying rack 211, and the limiting rod 233 restricts the position of the drying component 21, so that the contact switch of the drying component 21 is in the closed state, and the leather on box 24 continues to dry. The closing spring 22 is in the stationary state. Until the leather on box 24 is dried, the limiting rod 233 disconnects from the drying rack 211, the closing spring 22 extends, and the drying rack 211 slides to the drying rack 211 through the inclined rod 232. The rack 23 and box 24 are always in the rising state. During this process, the two sets of drying components 21 move in opposite directions, the contact switch is opened, and drying stops.

[0043] During this process, the displacement sensor detects the displacement changes of the U-shaped shelf 23 and the storage box 24. The displacement sensor controls the flip motor 263 to turn off until the storage box 24 and the U-shaped shelf 23 rise to the highest point and remain stationary. Then, the displacement sensor controls the flip motor 263 to start. The flip motor 263 drives the drive gear 262 to rotate, which in turn drives the driven gear 261 to rotate. The driven gear 261 drives the storage box 24 to rotate one revolution. The guide frame 16 guides the dried leather inside the storage box 24 to fall into the crushing box 14 below. After the driven gear 261 rotates one revolution, the displacement sensor turns off the flip motor 263.

[0044] The crushing motor 36 is started, driving the coarse crushing roller 31 on its output shaft to rotate. Under the meshing action of the coarse crushing gear 311, the two sets of coarse crushing rollers 31 rotate synchronously, coarsely crushing the leather. The coarse crushing roller 31 drives the crushing wheel 331, which is fixedly installed with it, to rotate. Under the transmission action of the crushing belt 332, the crushing wheel 331, which is fixedly installed with the fine crushing roller 32, rotates. Under the meshing action of the fine crushing gear 321, the multiple sets of fine crushing rollers 32 rotate synchronously, crushing the leather. Fine crushing; when the fine crushing roller 32 rotates, it drives the transmission wheel 351 fixedly installed with it to rotate. Under the transmission action of the transmission belt 352, it drives another set of transmission wheels 351 and screening gear 42 to rotate. When the coarse crushing roller 31 rotates, it drives the driven wheel 341 fixedly installed with it to rotate. Under the transmission action of the driven belt 342, it drives another set of driven wheels 341 and the sprocket 51 fixedly installed with it to rotate. When the sprocket 51 rotates, it drives the chain 52 to drive. The conveying component 53 is evenly fixedly installed on the chain 52. When the chain 52 drives, it drives the conveying component 53 to move.

[0045] After being crushed, the leather falls into the screening basket 41. When the screening gear 42 rotates, the screening basket 41 is driven to swing on the second support 132 by the rocker arm 411 under the reset action of the torsion spring on the screening basket 41. The tail of the screening basket 41 tilts downward to the feed plate 43. During the swinging and tilting process, the leather that meets the crushing standard falls from the screen holes on the screening basket 41 into the lower evacuation box 15. The leather that does not meet the crushing standard slides into the lower feed plate 43 when tilting and falls into the conveyor drawer 533 of the conveying assembly 53 below the lower feed plate 43. The chain 52 drives the conveying assembly. As component 53 moves toward receiving plate 44, the clearance rod 531 of conveying component 53 contacts receiving column 441, pushing receiving plate 44 toward crushing box 14. Receiving plate 44 drives slider 45 to slide on fifth bracket 135, and clearance spring 46 is compressed, thereby causing receiving plate 44 to break away from the overlapping part with conveying drawer 533, making it easier for leather in conveying drawer 533 to move above receiving plate 44. After conveying drawer 533 moves above receiving plate 44, clearance rod 531 breaks contact with receiving column 441, and receiving plate 44 and slider 45 return to their initial positions under the elastic action of clearance spring 46.

[0046] After the conveyor drawer 533 moves above the receiving plate 44, the chain 52 drives the conveyor assembly 53 to continue moving. The tilting column 5331 of the conveyor drawer 533 contacts the third support 133. With the transmission of the chain 52, the third support 133 restricts the movement of the conveyor drawer 533. The conveyor spring 532 deforms, and the conveyor drawer 533 tilts. The receiving plate 44 and the tilting column 5331 overlap in the vertical direction, which facilitates the conveying of the substandard leather in the conveyor drawer 533 to the receiving plate 44 and into the crushing box 14 for repeated crushing. After the substandard leather in the conveyor drawer 533 has been poured out, the chain 52 drives the conveyor assembly 53 to continue moving until the third support 133 breaks contact with the tilting column 5331. Under the action of the conveyor spring 532, the conveyor drawer 533 returns to its initial position, waiting to receive the substandard leather again.

[0047] Leather that meets the crushing standard falls from the sieve holes on the screening basket 41 into the separation box 15. The cone-shaped body 151 disperses the qualified leather separated by the screening basket 41 into the separation box 15, preventing blockage at the bottom of the separation box 15. At the same time, it facilitates the drying component 17 to further dry the qualified leather inside the separation box 15, preventing the drying component 21 from not drying the leather on the storage box 24 thoroughly, thus improving the drying efficiency. The dried qualified leather falls into the collection box 6 for subsequent recycling. The collection box 6 is replaced in time after collection is completed.

[0048] After the leather in storage box 24 has been emptied, more leather to be crushed can be added as needed to improve crushing efficiency.

[0049] This invention also discloses a process for recycling and reusing genuine leather, using the aforementioned equipment for recycling and reusing genuine leather, comprising the following steps:

[0050] Step 1: Place the leather to be broken on the storage box 24. Under the weight of the leather, the storage box 24 and the V-shaped frame 23 slide longitudinally, the drying spring 25 is compressed, the V-shaped frame 23 drives the two sets of drying components 21 to move towards each other, the closing spring 22 is compressed until the two sets of drying components 21 close, and the drying components 21 dry the leather on the storage box 24.

[0051] Step 2: As the moisture in the leather decreases, the weight on the storage box 24 decreases, and the drying spring 25 extends. During this process, the closing spring 22 remains stationary until the leather is dried. The zigzag frame 23 then releases its restriction on the drying assembly 21, the closing spring 22 extends, and the drying assembly 21 opens and closes. The displacement sensor controls the flipping assembly 26 to drive the storage box 24 to rotate one revolution.

[0052] Step 3: The leather falls into the crushing box 14. The coarse crushing roller 31 and the fine crushing roller 32 crush the leather in turn. The crushed leather falls into the screening basket 41. The screening gear 42 drives the screening basket 41 to swing. The qualified leather falls into the lower separation box 15. The unqualified leather falls into the conveying tray 533 below the lower conveying plate 43 through the lower conveying plate 43.

[0053] Step 4: Chain 52 drives conveyor assembly 53 to move above receiving plate 44, and the clearance rod 531 breaks the interference of receiving plate 44 until the conveyor drawer 533 is above receiving plate 44. The third bracket 133 and the tilting column 5331 cooperate to convey the unqualified leather through receiving plate 44 to crushing box 14 for repeated crushing.

[0054] Step 5: The cone-shaped body 151 disperses the qualified leather sieved by the screening basket 41 into the separation box 15. The drying component 17 further dries the qualified leather inside the separation box 15. The dried qualified leather falls into the collection box 6. The collection box 6 is replaced in time after collection is completed.

[0055] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the protection scope of this invention.

Claims

1. A leather crushing, recycling, and reuse equipment, comprising a conveyor frame (12) and a support frame (13) of the main structure, characterized in that: A crushing box (14) and a separation box (15) are sequentially arranged on the support frame (13). The drying mechanism above the crushing box (14) includes two sets of drying components (21) and a zigzag frame (23). The drying components (21) are symmetrically slidably installed on the first support (131) of the support frame (13). The zigzag frame (23) is longitudinally slidably installed on the first support (131). A storage box (24) is rotatably installed on the zigzag frame (23). The zigzag frame (23) drives the two sets of drying components (21) to close the leather on the storage box (24). The flipping component (26) on the zigzag frame (23) flips the storage box (24). 24) Pour the leather into the crushing box (14) for coarse and fine crushing; a sieving basket (41) is oscillating below the crushing box (14). The qualified leather scraps screened by the sieving basket (41) fall into the collection box (6) below through the separation box (15). A conveying mechanism is provided on the conveying frame (12). The sieving basket (41) is conveyed to the conveying component (53) of the conveying mechanism through the lower conveying plate (43) on the support frame (13) to crush the unqualified leather. The conveying component (53) conveys the unqualified leather to the crushing box (14) through the receiving plate (44) on the support frame (13) for repeated crushing. The conveying mechanism includes two sets of sprockets (51) and a chain (52). The sprockets (51) are rotatably mounted on the conveyor frame (12), and the chain (52) is arranged on the two sets of sprockets (51). Multiple sets of conveying components (53) are evenly arranged on the chain (52). Each conveying component (53) includes a rectangular plate (534) and a conveying drawer (533). The rectangular plate (534) is fixedly mounted on the chain (52), and a conveying spring is provided between the rectangular plate (534) and the conveying drawer (533). 532), one end of the conveying spring (532) is fixedly installed with the rectangular plate (534), and the other end of the conveying spring (532) is fixedly installed with the conveying drawer (533). A third bracket (133) is provided on the top of the support frame (13). The receiving plate (44) and the flipping column (5331) overlap in the vertical direction. The third bracket (133) contacts and cooperates with the flipping columns (5331) on both sides of the conveying drawer (533) to convey the unqualified leather in the conveying drawer (533) to the receiving plate (44). The receiving plate (44) is fixedly installed with sliders (45) at both ends. The sliders (45) are slidably installed on the fifth bracket (135) of the support frame (13). A relief spring (46) is provided between the slider (45) and the fifth bracket (135). Receiving columns (441) are symmetrically arranged on the receiving plate (44). The relief rod (531) of the conveying component (53) contacts and cooperates with the receiving column (441). The relief rod (531) pushes the receiving plate (44) to move towards the crushing box (14) through the receiving column (441).

2. The genuine leather crushing, recycling, and reuse equipment according to claim 1, characterized in that: The drying mechanism also includes a drying spring (25) and two sets of closing springs (22). The drying spring (25) is located between the first support (131) and the zigzag frame (23). The drying spring (25) is slidably mounted on the first support (131). The zigzag frame (23) is symmetrically provided with a positioning rod (231), a diagonal rod (232), and a limiting rod (233). The positioning rod (231), the diagonal rod (232), and the limiting rod (233) respectively contact and cooperate with the drying rack (211) of the drying assembly (21) and drive the two sets of drying assemblies (21) to close. The sliding rod (212) of the drying assembly (21) is slidably mounted on the first support (131). The closing spring (22) is located between the first support (131) and the drying assembly (21). The closing spring (22) is slidably mounted on the sliding rod (212).

3. The genuine leather crushing, recycling, and reuse equipment according to claim 2, characterized in that: The drying assembly (21) is equipped with a contact switch. When the two sets of drying assemblies (21) are closed, the contact switch is closed, and the drying assembly (21) is started to dry the leather on the storage box (24). When the two sets of drying assemblies (21) are opened and closed, the contact switch is opened, and the drying assembly (21) stops drying.

4. The genuine leather crushing, recycling, and reuse equipment according to claim 3, characterized in that: The flipping assembly (26) includes a driven gear (261) and a flipping motor (263). The driven gear (261) is rotatably mounted on the bracket (23). The driven gear (261) is fixedly mounted on the rotating shaft of the storage box (24). The flipping motor (263) is fixedly mounted on the limiting rod (233). The output shaft of the flipping motor (263) is fixedly mounted with a driving gear (262). The driving gear (262) meshes with the driven gear (261). The flipping motor (263) is equipped with a displacement sensor. The flipping motor (263) is electrically connected to the displacement sensor. The displacement sensor drives the storage box (24) to rotate one revolution by controlling the flipping assembly (26).

5. The genuine leather crushing, recycling, and reuse equipment according to claim 4, characterized in that: The crushing box (14) is rotatably equipped with two sets of coarse crushing rollers (31) and multiple sets of fine crushing rollers (32). The multiple sets of fine crushing rollers (32) are located below the two sets of coarse crushing rollers (31). The two sets of coarse crushing rollers (31) cooperate to crush each other. The coarse crushing gears (311) of the two sets of coarse crushing rollers (31) mesh. The multiple sets of fine crushing rollers (32) cooperate to crush each other. The fine crushing gears (321) of adjacent fine crushing rollers (32) mesh. A crushing assembly (33) is provided between the coarse crushing rollers (31) and the fine crushing rollers (32). The crushing assembly (33) includes two sets of crushing wheels (331) and a crushing belt (332). One set of crushing wheels (331) is fixedly installed with one set of coarse crushing rollers (31), and the other set of crushing wheels (331) is fixedly installed with one set of fine crushing rollers (32). The crushing belt (332) is located on the two sets of crushing wheels (331).

6. The genuine leather crushing, recycling, and reuse equipment according to claim 5, characterized in that: A screening gear (42) is rotatably mounted on the support frame (13). The teeth of the screening gear (42) are in contact with the rocker arm (411) at the end of the screening basket (41). The screening basket (41) is rotatably mounted on the second bracket (132) of the support frame (13). A torsion spring is provided between the rotating shaft of the screening basket (41) and the second bracket (132). The lower feeding plate (43) is located at the tail end of the screening basket (41).

7. The genuine leather crushing, recycling, and reuse equipment according to claim 6, characterized in that: A cone-shaped body (151) is provided above the evacuation box (15), a drying component (17) is provided outside the evacuation box (15), and a collection box (6) is provided on the fourth support (134) of the support frame (13).

8. A process for recycling and reusing genuine leather, using the genuine leather recycling and reusing equipment as described in claim 7, characterized in that: Step 1: Place the leather to be broken on the storage box (24). Under the weight of the leather, the storage box (24) and the rack (23) slide longitudinally. The drying spring (25) is compressed, and the rack (23) drives the two sets of drying components (21) to move towards each other. The closing spring (22) is compressed until the two sets of drying components (21) close. The drying components (21) dry the leather on the storage box (24). Step 2: As the moisture in the leather decreases, the weight on the storage box (24) decreases, and the drying spring (25) extends. During this process, the closing spring (22) remains stationary until the leather is dried. The zigzag frame (23) then releases its restriction on the drying assembly (21), the closing spring (22) extends, and the drying assembly (21) opens and closes. The displacement sensor drives the storage box (24) to rotate one revolution by controlling the flipping assembly (26). Step 3: The leather falls into the crushing box (14), and the coarse crushing roller (31) and fine crushing roller (32) crush the leather in turn. The crushed leather falls into the screening basket (41), and the screening gear (42) drives the screening basket (41) to swing. The qualified leather falls into the lower separation box (15), and the unqualified leather falls into the conveying tray (533) below the lower conveying plate (43) through the lower conveying plate (43). Step 4: The chain (52) drives the conveyor assembly (53) to move above the receiving plate (44), and the clearance rod (531) breaks the interference of the receiving plate (44) until the conveyor drawer (533) is above the receiving plate (44). The third bracket (133) and the tilting column (5331) cooperate to convey the unqualified leather through the receiving plate (44) to the crushing box (14) for repeated crushing. Step 5: The cone (151) disperses the qualified leathers sieved by the screening basket (41) into the separation box (15). The drying component (17) further dries the qualified leathers inside the separation box (15). The dried qualified leathers fall into the collection box (6). The collection box (6) is replaced in time after collection is completed.

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