Leather crushing and recycling equipment and process thereof

Abstract

The invention discloses leather crushing, recycling and reusing equipment and a process thereof, and relates to the technical field of leather recycling, the leather crushing, recycling and reusing equipment comprises a crushing box and a separating box, a drying mechanism above the crushing box comprises two drying assemblies and an n-shaped frame, the drying assemblies are symmetrically and slidably mounted on a first support of a supporting frame, and the n-shaped frame is longitudinally and slidably mounted on the first support; a storage box is rotatably mounted on the n-shaped frame, the n-shaped frame drives the two drying assemblies to close and dry leather on the storage box, and the turnover assembly turns over the storage box to pour the leather into the crushing box; the coarse crushing roller and the fine crushing roller in the crushing box are used for carrying out secondary crushing on the leather; qualified leather screened by the screening basket falls into the collecting box through the separation box, the multiple sets of conveying assemblies are evenly arranged on a chain of the chain wheel, and the screening basket conveys unqualified leather to the crushing box through the conveying assemblies to be crushed repeatedly. The device is high in automation degree, the crushing efficiency and quality are improved, and the practicability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of genuine leather recycling, and in particular to a device for recycling and reusing genuine leather. Background Art

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

[0003] Traditional leather crushing requires multiple processes, and the sizes of the crushed leather are different, so they need to be selected before they can be reused. In addition, the existing leather crushing device has a complex structure, cumbersome operation, poor practicality, and incomplete crushing. Therefore, there is an urgent need for a leather crushing and recycling equipment with a high degree of automation. Summary of the Invention

[0004] In view of the above technical problems, the technical solution adopted by the present invention is: a leather crushing and recycling equipment, including a conveying frame and a supporting frame of a main body mechanism, a crushing box and a detachment box are sequentially arranged on the supporting frame, and a drying mechanism is provided above the crushing box, the drying mechanism includes two groups of drying components and a frame, the drying components are symmetrically slidably mounted on the first bracket of the supporting frame, the frame is longitudinally slidably mounted on the first bracket, a storage box is rotatably mounted on the frame, the frame drives the two groups of drying components to close the leather on the drying storage box, the flipping assembly on the frame flips the storage box, and pours the leather into the crushing box for coarse and fine crushing; a screening basket is swingably arranged below the crushing box, the screening basket screens qualified leather fragments and falls into the collection box below through the detachment box, a conveying mechanism is provided on the conveying frame, and the screening basket is transported to the conveying assembly of the conveying mechanism through the lower delivery plate on the support frame, and the conveying assembly transports the unqualified leather to the crushing box for repeated crushing through the 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 arranged between the first bracket and the cross frame, and is slidably mounted on the first bracket. The cross frame is symmetrically provided with a positioning rod, an inclined rod, and a limit rod. The positioning rod, the inclined rod, and the limit rod respectively contact and cooperate with the drying rack of the drying assembly, thereby driving the two sets of drying assemblies to close. The sliding rod of the drying assembly is laterally slidably mounted on the first bracket, and the closing spring is arranged between the first bracket and the drying assembly, and is slidably mounted on the sliding rod. The leather to be recycled is placed on the storage box. Under the action of gravity, the cross frame is pushed to slide downward on the first bracket, the drying spring is compressed, the positioning rod is disconnected from the drying rack, the inclined rod contacts the drying rack and pushes the two sets of drying assemblies to move toward each other, the closing spring is compressed until the limit rod contacts the drying rack, and the two sets of drying assemblies are closed. At this time, the two sets of limit rods restrict the movement of the drying assemblies.

[0006] Furthermore, a contact switch is provided on the drying component. When the two groups of drying components are closed, the contact switch is closed, and the drying component is started to dry the leather on the storage box; when the two groups of drying components are disconnected and closed, the contact switch is disconnected, and the drying component stops drying.

[0007] Furthermore, the flip assembly includes a driven gear and a flip motor. The driven gear is rotatably mounted on the frame and fixedly mounted to the rotating shaft of the storage box. The flip motor is fixedly mounted on a limit rod. A driving gear is fixedly mounted on the output shaft of the flip motor and meshes with the driven gear. A displacement sensor is provided on the flip motor and is electrically connected to the displacement sensor. The displacement sensor controls the flip assembly to drive the storage box to rotate one revolution. The displacement sensor controls the start and stop of the flip motor. During the addition and drying process of the leather in the storage box, the elastic action of the drying spring causes the displacement of the frame and the storage box to change. At this time, the displacement sensor controls the flip motor to shut off until the leather in the storage box is dried. At this point, the storage box is in a stationary state. The displacement sensor controls the start of the flip motor, which drives the driving gear to rotate, which in turn drives the driven gear to rotate. Each rotation of the driven gear is considered one rotation, 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, two sets of coarse crushing rollers and multiple sets of fine crushing rollers are rotatably installed inside the crushing box. The multiple sets of fine crushing rollers are arranged below the two sets of coarse crushing rollers. The two sets of coarse crushing rollers cooperate with each other to crush, and the coarse crushing gears of the two sets of coarse crushing rollers mesh with each other. The multiple sets of fine crushing rollers cooperate with each other to crush, and the fine crushing gears of adjacent fine crushing rollers mesh with each other. A crushing assembly is arranged between the coarse crushing rollers and the fine crushing rollers. The crushing 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 of crushing wheels is fixedly installed with one set of fine crushing rollers. The crushing belt is arranged on the two sets of crushing wheels. When one set of coarse crushing rollers rotates, the meshing action of the coarse crushing gears drives the other set of coarse crushing rollers to rotate, thereby driving the crushing wheels fixedly installed with the coarse crushing rollers to rotate. The transmission action of the crushing belt drives the crushing wheels fixedly installed with the fine crushing rollers to rotate, and the meshing action of the fine crushing gears drives the multiple sets of fine crushing rollers to rotate. The two sets of coarse crushing rollers rotate to perform primary crushing of the leather, and the multiple sets of fine crushing rollers rotate to perform secondary crushing of the leather.

[0009] Furthermore, a screening gear is rotatably mounted on the support frame, and the teeth of the screening gear are in contact with the rocker at the end of the screening basket. The screening basket is rotatably mounted on the second bracket of the support frame, and a torsion spring is provided between the rotating shaft of the screening basket and the second bracket. The lower feed plate is provided at the tail end of the screening basket. When the screening gear rotates, the screening basket is driven to swing on the second bracket via the rocker, and the tail of the screening basket tilts toward the lower feed plate. During the swinging and tilting process of the screening basket, leather that meets the crushing standards falls from the sieve holes on the screening basket into the separation box below, while leather that does not meet the crushing standards is drawn into the lower feed plate when tilting, and falls into the conveying drawer of the conveying assembly below the lower feed 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 installed on the conveying frame, the chains are arranged on the two sets of sprockets, and the multiple sets of conveying components are evenly arranged on the chains. The conveying component includes a rectangular plate and a conveying drawer. The rectangular plate is fixedly installed on the chain. A conveying spring is arranged between the rectangular plate and the conveying drawer. One end of the conveying spring is fixedly installed on the rectangular plate, and the other end of the conveying spring is fixedly installed on the conveying drawer. A third bracket is provided on the top of the support frame, and the receiving plate and the turning column overlap in the vertical direction. The third bracket contacts and cooperates with the turning columns on both sides of the conveying drawer to convey the unqualified leather in the conveying drawer to the receiving plate. When the sprocket rotates, it drives the chain transmission, and the chain drives the conveying assembly to move above the receiving plate. After the conveyor drawer moves above the receiving plate, the turning column of the conveyor drawer contacts the third bracket. With the transmission of the chain, the third bracket limits the movement of the conveyor drawer, the conveying spring is deformed, and the conveyor drawer tilts. The receiving plate and the turning column overlap in the vertical direction, which makes it easy to convey the unqualified leather in the conveyor drawer to the receiving plate and enter the crushing box for repeated crushing.

[0011] Furthermore, sliders are fixedly mounted on both ends of the receiving plate, and the sliders are slidably mounted on the fifth bracket of the support frame. A yield spring is provided between the slider and the fifth bracket, and receiving columns are symmetrically provided on the receiving plate. The yield rod of the conveying assembly contacts and cooperates with the receiving column, and the yield rod pushes the receiving plate toward 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 when the conveying drawer moves above the receiving plate; when the conveying drawer of the conveying assembly moves above the receiving plate, the yield rod of the conveying assembly contacts and contacts the receiving column, pushing the receiving plate toward the crushing box, and the receiving plate drives the slider to slide on the fifth bracket, compressing the yield spring, thereby disconnecting the overlapping portion of the receiving plate from the conveying drawer, facilitating the movement of the leather in the conveying drawer above the receiving plate. After the conveying drawer moves above the receiving plate, the yield rod disconnects from the receiving column, and the receiving plate and the slider return to their initial positions under the elastic action of the yield spring.

[0012] Furthermore, a cone is provided above the evacuation box, a drying component is provided outside the evacuation box, and the collection box is provided on the fourth bracket of the support frame. The cone disperses qualified leathers screened by the screening basket into the evacuation box, preventing clogging at the bottom of the evacuation box. It also facilitates further drying of the qualified leathers within the evacuation box by the drying component, preventing the drying component from incompletely drying the leathers in the storage box, thereby improving drying efficiency.

[0013] The present invention also discloses a process for crushing and recycling leather, which uses the above-mentioned equipment for crushing and recycling leather, and comprises the following steps:

[0014] Step 1: Place the leather to be crushed on the storage box. Under the action of 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 are closed, and the drying components dry the leather on the storage box;

[0015] Step 2: As the moisture content of the leather decreases, the gravity on the storage box decreases, and the drying spring extends. During this process, the closing spring remains stationary until the leather is dried. The frame removes the restriction on the drying component, the closing spring extends, the drying component opens and closes, and the displacement sensor controls the flip component to drive the storage box to rotate one circle.

[0016] Step 3: The leather falls into the crushing box, and the coarse crushing roller and the fine crushing roller successively crush the leather for the second time. The crushed leather falls into the screening basket, and the screening gear drives the screening basket to swing. The qualified leather falls into the alienation box below, and 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 conveying assembly to move above the receiving plate, and the clearance rod breaks the interference of the receiving plate until the conveying drawer is above the receiving plate. The third bracket cooperates with the turning column to convey the unqualified leather through the receiving plate to the crushing box for repeated crushing;

[0018] Step 5: The cone scatters the qualified leather screened out by the screening basket into the separation box. The drying component further dries the qualified leather inside the separation box. The dried qualified leather falls into the collection box. The collection box is replaced in time after the collection is completed.

[0019] Compared with the prior art, the present invention has the following advantages: (1) The present invention is provided with a drying mechanism, which uses the gravity of the leather to automatically dry and stop drying, and can control the drying components at the same time to prevent ineffective drying, simple operation, and high degree of automation; (2) The present invention is provided with a screening mechanism, which uses the screening gear to drive the screening basket to swing, and screen qualified and unqualified crushed leather, thereby ensuring the quality of crushing, and the automatic screening improves the crushing efficiency; (3) The present invention is provided with a conveying mechanism, which uses the cooperation of the conveying component with the lower feeding plate and the receiving plate to , the conveying of unqualified crushed leather is completed with high quality, and the specifications of the crushed leather are guaranteed. According to the specifications of the crushed leather required, the screening basket is replaced and the size of the sieve holes on the screening basket is changed. There is no need for manual sorting, and it is very practical; (4) The present invention is provided with a cone and a drying component. The cone disperses the qualified leather screened out by the screening basket into the separation box to prevent the bottom of the separation box from being blocked. At the same time, it is convenient for the drying component to further dry the qualified leather inside the separation box, and prevent the drying component from not drying the leather on the storage box thoroughly, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the first viewing angle of the overall structure of the present invention.

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

[0022] Figure 3 It is a right side view of the present invention.

[0023] Figure 4 for Figure 3 Cross-section view in the AA direction.

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

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

[0026] Figure 7 for Figure 1 A partial enlarged view of part D.

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

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

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

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

[0031] Figure 12 for Figure 6 A partial enlarged view of part I.

[0032] Figure numbers: 11-bottom plate; 12-conveying frame; 13-support frame; 14-crushing box; 15-separation box; 16-guide frame; 17-drying component; 131-first bracket; 132-second bracket; 133-third bracket; 134-fourth bracket; 135-fifth bracket; 21-drying assembly; 22-closing spring; 23-cross-bracket; 24-storage box; 25-drying spring; 26-turning assembly; 211-drying rack; 212-sliding rod; 231-positioning rod; 232-oblique rod; 233-limiting rod; 261-driven gear; 262-driving gear; 263-turning motor; 31-coarse crushing roller; 32-fine crushing roller; 33-crushing Component; 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-screening basket; 42-screening gear; 43-lower feeding plate; 44-receiving plate; 45-slider; 46-yielding spring; 411-rocker; 151-conical body; 441-receiving column; 51-sprocket; 52-chain; 53-conveyor component; 531-yielding rod; 532-conveyor spring; 533-conveyor drawer; 534-rectangular plate; 6-collection box; 5331-turnover column. DETAILED DESCRIPTION

[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 leather crushing and recycling equipment shown in the figure includes a conveyor frame 12 and a support frame 13 of the main body mechanism, a crushing box 14 and a separation box 15 are sequentially arranged on the support frame 13, and a drying mechanism is provided above the crushing box 14. The drying mechanism includes two groups of drying components 21 and a frame 23. The drying components 21 are symmetrically slidably mounted on the first bracket 131 of the support frame 13, and the frame 23 is longitudinally slidably mounted on the first bracket 131. A storage box 24 is rotatably mounted on the frame 23. The frame 23 drives the two groups of drying components 21 to close and dry the leather on the storage box 24. The flip assembly 26 on the rack 23 flips the storage box 24, pours the leather into the crushing box 14, and performs coarse and fine crushing on the leather; a screening basket 41 is swingably set below the crushing box 14, and the screening basket 41 screens qualified leather fragments and drops them into the collection box 6 below through the alienation box 15. A conveying mechanism is set on the conveying frame 12, and the screening basket 41 conveys the unqualified leather to the conveying assembly 53 of the conveying mechanism through the lower delivery plate 43 on the support frame 13. The conveying assembly 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 mechanism includes a bottom plate 11, a conveying 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 conveying frame 12 and the support frame 13 are respectively fixedly mounted on the bottom plate 11, and the two sets of guide frames 16 are symmetrically fixedly mounted on the support frame 13. The guide frame 16 guides the dried leather to fall into the crushing box 14. The crushing box 14 and the separation box 15 are respectively fixedly mounted on the support frame 13 in sequence. 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 frame 16 is arranged above the crushing box 14. The box 15 is arranged below the crushing box 14, and a cone 151 is arranged above the evacuation box 15. The drying component 17 is arranged outside the evacuation box 15, and the drying component 17 is fixedly installed on the support frame 13. A collecting box 6 is arranged on the fourth bracket 134. The cone 151 disperses the qualified leather screened by the screening basket 41 into the evacuation box 15 to prevent the bottom of the evacuation box 15 from being blocked. At the same time, it is convenient for the drying component 17 to further dry the qualified leather inside the evacuation box 15, and prevent the drying component 21 from not completely drying the leather on the storage box 24, thereby improving the drying efficiency; the qualified leather after drying falls into the collecting box 6, and the collecting box 6 is replaced in time after the collection is completed.

[0036] like Figure 1 、 Figure 7As shown, the drying mechanism is arranged between the guide frame 16 and the crushing box 14, and the drying mechanism includes two groups of drying components 21, two groups of closing springs 22, a frame 23, a storage box 24 and a drying spring 25. The two groups of drying components 21 are symmetrically slidably mounted on the first bracket 131 of the support frame 13, one group of closing springs 22 corresponds to one group of drying components 21, the closing spring 22 is arranged between the first bracket 131 and the drying component 21, the closing spring 22 is slidably mounted on the slide rod 212, the frame 23 is longitudinally slidably mounted on the first bracket 131, the drying spring 25 is arranged between the first bracket 131 and the frame 23, and the drying spring 25 is arranged between the first bracket 131 and the frame 23. The frame 23 is slidably mounted on the first bracket 131. A positioning rod 231, an oblique rod 232, and a limiting rod 233 are symmetrically arranged on the frame 23. The positioning rod 231, the oblique rod 232, and the limiting rod 233 are respectively in contact with the drying rack 211 of the drying assembly 21. During the cooperation process, the two sets of drying assemblies 21 are driven to close. The storage box 24 is rotatably mounted on the frame 23. The storage box 24 is set 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. The leather to be recycled is placed on the storage box 24. Under the action of gravity, the frame 23 is pushed downward on the first bracket 131. When the drying rack 21 is opened, the drying spring 25 is compressed, the positioning rod 231 is disconnected from the drying rack 211, the inclined rod 232 is in contact with the drying rack 211 and pushes the two drying components 21 to move toward each other, and the closing spring 22 is further compressed until the limit rod 233 is in contact with the drying rack 211, and the two drying components 21 are closed. At this time, the two limit rods 233 restrict the movement of the drying components 21; a contact switch is provided on the drying component 21, and the two drying components 21 are closed, the contact switch is closed, and the drying component 21 is started to dry the leather on the storage box 24; the two drying components 21 are disconnected and closed, the contact switch is opened, and the drying component 21 stops drying; as the drying rack 21 is opened, the contact switch is opened, and the drying component 21 stops drying. As the moisture content of the leather on the storage box 24 decreases, the gravity of the leather on the storage box 24 decreases, and the drying spring 25 slowly extends. During this process, the limit rod 233 contacts the drying rack 211. The limit rod 233 limits the position of the drying component 21, so that the contact switch of the drying component 21 is in a closed state, and the leather on the storage box 24 is continuously dried. The closing spring 22 is in a stationary state; until the leather on the storage box 24 is dried, the limit 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 two groups of drying components 21 move back to back, the contact switch is disconnected, and the drying stops.

[0037] like Figure 1 、 Figure 7As shown, the drying mechanism also includes a flip assembly 26, which is arranged between the storage box 24 and the frame 23. The flip assembly 26 includes a driven gear 261 and a flip motor 263. The driven gear 261 is rotatably mounted on the frame 23. The driven gear 261 is fixedly mounted on the rotating shaft of the storage box 24. The flip motor 263 is fixedly mounted on the limit rod 233. A driving gear 262 is fixedly mounted on the output shaft of the flip motor 263. The driving gear 262 is meshed with the driven gear 261. A displacement sensor is provided on the flip motor 263. The flip motor 263 is electrically connected to the displacement sensor. The displacement sensor drives the storage box 24 to rotate one circle by controlling the flip assembly 26; the displacement sensor The device controls the start and stop of the flip motor 263. During the process of adding and drying 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 be turned 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, and the flip motor 263 drives the driving gear 262 to rotate. The driving gear 262 drives the driven gear 261 to rotate. The driven gear 261 rotates one circle, and the driven gear 261 drives the storage box 24 to rotate one circle. 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 arranged inside the crushing box 14, the crushing mechanism includes two groups of coarse crushing rollers 31, multiple groups of fine crushing rollers 32, a crushing assembly 33 and a crushing motor 36, the crushing motor 36 is fixedly installed on the crushing box 14, and the two groups of coarse crushing rollers 31 are symmetrically rotatably installed inside the crushing box 14, one group of coarse crushing rollers 31 is fixedly installed with the output shaft of the crushing motor 36, and the crushing motor 36 drives the coarse crushing rollers 31 on its output shaft to rotate, and the two groups of coarse crushing rollers 31 cooperate with each other for crushing, and the coarse crushing rollers 31 are provided with coarse crushing gears 311, and the coarse crushing gears 311 of the coarse crushing rollers 31 are arranged outside the crushing box 14. The coarse crushing gears 311 of the two groups of coarse crushing rollers 31 are meshed with each other. Under the meshing action of the coarse crushing gears 311, the two groups of coarse crushing rollers 31 rotate synchronously to coarsely crush the leather; multiple groups of fine crushing rollers 32 are arranged below the two groups of coarse crushing rollers 31, and the fine crushing rollers 32 are rotatably installed inside the crushing box 14 in sequence, and the two adjacent groups of fine crushing rollers 32 are rotated. The crushing rollers 32 cooperate with each other in crushing. A fine crushing gear 321 is provided on the fine crushing roller 32. The fine crushing gear 321 is arranged outside the crushing box 14. The fine crushing gears 321 of the two adjacent groups of fine crushing rollers 32 mesh with each other. Under the meshing action of the fine crushing gears 321, multiple groups of fine crushing rollers 32 rotate synchronously to crush the leather; the crushing assembly 33 is arranged between the coarse crushing roller 31 and the fine crushing roller 32. The crushing assembly 33 includes two groups of crushing wheels 331 and a crushing belt 332. One group of crushing wheels 331 is fixedly installed with one group of coarse crushing rollers 31, and the other group of crushing wheels 331 is fixedly installed with one group of fine crushing rollers 32. The crushing belt 332 is arranged on the two groups of crushing wheels 331. The coarse crushing roller 31 drives the crushing wheel 331 fixedly installed therewith 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 gear 321, multiple groups 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 arranged between the crushing box 14 and the alienation box 15. The screening basket 41 is rotatably mounted on the second bracket 132 of the support frame 13. A torsion spring is arranged between the rotating shaft of the screening basket 41 and the second bracket 132. The torsion spring assists the screening basket 41 in restoring its initial position. The screening gear 42 is rotatably mounted on the support frame 13. The teeth of the screening gear 42 are in contact with the rocker 411 at the end of the screening basket 41. The lower feeding plate 43 is arranged at the tail end of the screening basket 41. The lower feeding plate 43 is fixedly mounted on the support frame 13. When the screening gear 42 rotates, the screening basket 41 is driven to swing on the second bracket 132 through the rocker 411. The tail of the screening basket 41 tilts to the lower feeding plate 43. The screening basket 41 is in the swinging and tilting process. In the process, the leather that meets the crushing standards falls from the sieve holes on the screening basket 41 into the separation box 15 below, and the leather that does not meet the crushing standards is drawn into the lower delivery plate 43 when tilted, and falls into the conveying drawer 533 of the conveying assembly 53 below the lower delivery plate 43; a transmission assembly 35 is arranged between the screening gear 42 and one group of fine crushing rollers 32, and the transmission assembly 35 includes two groups of transmission wheels 351 and a transmission belt 352. One group of transmission wheels 351 is fixedly installed with one group of fine crushing rollers 32, and the other group of transmission wheels 351 is fixedly installed with the screening gear 42. The transmission belt 352 is arranged on the two groups of transmission wheels 351. When the fine crushing roller 32 rotates, it drives the transmission wheel 351 fixedly installed therewith to rotate, and under the transmission action of the transmission belt 352, it drives the other group of transmission wheels 351 and the screening gear 42 to rotate.

[0040] like Figure 2 、 Figure 3 、 Figure 4 、 Figure 11As shown, the conveying mechanism includes two sets of sprockets 51, chains 52 and multiple sets of conveying components 53. The two sets of sprockets 51 are rotatably mounted on the conveying frame 12 respectively. The chains 52 are arranged on the two sets of sprockets 51. A driven component 34 is arranged between the chains 52 and the coarse crushing rollers 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 on one set of sprockets 51, and the other set of driven wheels 341 is fixedly mounted on one set of coarse crushing rollers 31. The driven belt 342 is arranged between the two sets of sprockets 51. The coarse crushing roller 31 rotates on a driven wheel 341, and when it rotates, it drives the driven wheel 341 fixed thereto to rotate. Under the transmission action of the driven belt 342, it drives another set of driven wheels 341 and the sprocket 51 fixed thereto to rotate. When the sprocket 51 rotates, it drives the chain 52 to drive. The conveying assembly 53 is evenly fixed on the chain 52. When the chain 52 drives, it drives the conveying assembly 53 to move. The conveying assembly 53 includes a yield rod 531, a conveying spring 532, a conveying drawer 533 and a rectangular plate 534. The rectangular plate 534 is a rectangular plate. 34 is fixedly mounted on the chain 52, the yield rod 531 is fixedly mounted on the rectangular plate 534, the conveying spring 532 is arranged between the rectangular plate 534 and the conveying drawer 533, one end of the conveying spring 532 is fixedly mounted on the rectangular plate 534, and the other end of the conveying spring 532 is fixedly mounted on the conveying drawer 533, the receiving plate 44 and the turning column 5331 overlap in the vertical direction, the third bracket 133 on the top of the support frame 13 contacts and cooperates with the turning columns 5331 on both sides of the conveying drawer 533, and the chain 52 drives the conveying assembly 53 moves to the top of the receiving plate 44. After the conveying drawer 533 moves to the top of the receiving plate 44, the turning column 5331 of the conveying drawer 533 contacts the third bracket 133. With the transmission of the chain 52, the third bracket 133 limits the movement of the conveying drawer 533, the conveying spring 532 is deformed, and the conveying drawer 533 tilts. The receiving plate 44 and the turning column 5331 overlap in the vertical direction, which makes it easy to convey the unqualified leather in the conveying 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 yield spring 46. The receiving plate 44 is arranged between the drying component 21 and the crushing box 14. The receiving plate 44 is fixedly mounted on the slider 45. The slider 45 is slidably mounted on the fifth bracket 135 of the support frame 13. The yield spring 46 is arranged between the slider 45 and the fifth bracket 135. The receiving plate 44 is symmetrically provided with receiving columns 441. The yield rod 531 of the conveying component 53 contacts and cooperates with the receiving column 441. The yield rod 531 pushes the receiving plate 44 toward the crushing box 14 through the receiving column 441. Since the receiving plate 44 and the conveying drawer 533 overlap in the vertical direction, the conveying drawer 533 moves over the receiving plate 44. During the process, the receiving plate 44 interferes with the movement of the conveying drawer 533; during the process of the conveying drawer 533 of the conveying assembly 53 moving toward the receiving plate 44, the yield rod 531 of the conveying assembly 53 contacts the receiving column 441, pushing the receiving plate 44 to move toward the crushing box 14, and the receiving plate 44 drives the slider 45 to slide on the fifth bracket 135, and the yield spring 46 is compressed, so that the receiving plate 44 is disconnected from the overlapping part with the conveying drawer 533, so that the leather in the conveying drawer 533 can move to the top of the receiving plate 44. After the conveying drawer 533 moves to the top of the receiving plate 44, the yield rod 531 is disconnected from the receiving column 441, and the receiving plate 44 and the slider 45 return to their initial positions under the elastic action of the yield 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, and the positioning rod 231 of the rack 23 limits the position of the two groups of drying components 21. The leather to be recycled is placed on the storage box 24. Under the action of gravity, the rack 23 is pushed to slide downward on the first bracket 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 groups of drying components 21 to move toward each other, and the closing spring 22 is further compressed until the limiting rod 233 contacts the drying rack 211, and the two groups of drying components 21 are closed. At this time, the two groups of limiting rods 233 limit the movement of the drying components 21, the two groups of drying components 21 are closed, and the contact switch on the drying component 21 is closed, starting the drying component 21 to place leather. The leather on the storage box 24 is dried. As the moisture content of the leather on the storage box 24 decreases, the gravity of the leather on the storage box 24 decreases, the drying spring 25 slowly extends, and the frame 23 and the storage box 24 gradually rise. During this process, the limit rod 233 contacts the drying rack 211, and the limit rod 233 limits the position of the drying component 21, so that the contact switch of the drying component 21 is in a closed state, and the leather on the storage box 24 continues to be dried, and the closing spring 22 is in a stationary state; until the leather on the storage box 24 is dried, the limit 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 frame 23 and the storage box 24 are always in an ascending state. During this process, the two groups of drying components 21 move back to back, the contact switch is disconnected, and the drying stops.

[0043] During this process, the displacement sensor senses the displacement changes of the rack 23 and the storage box 24, and the displacement sensor controls the flip motor 263 to turn off until the storage box 24 and the rack 23 rise to the highest point and are in a stationary state. The displacement sensor controls the flip motor 263 to start, and the flip motor 263 drives the driving gear 262 to rotate, and the driving gear 262 drives the driven gear 261 to rotate, and the driven gear 261 drives the storage box 24 to rotate one circle. 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 circle, the displacement sensor turns off the flip motor 263.

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

[0045] The crushed leather in the crushing box 14 falls into the screening basket 41. When the screening gear 42 rotates, under the reset action of the torsion spring on the screening basket 41, the screening basket 41 is driven to swing on the second bracket 132 through the rocker 411, and the tail of the screening basket 41 tilts toward the lower feeding plate 43. During the swinging and tilting process of the screening basket 41, the leather that meets the crushing standards falls from the sieve holes on the screening basket 41 into the alienation box 15 below, and the leather that does not meet the crushing standards is drawn into the lower feeding plate 43 when tilting, and falls into the conveying drawer 533 of the conveying assembly 53 below the lower feeding plate 43; the chain 52 drives the conveying assembly 53 to move. The component 53 moves toward the receiving plate 44, and the yield rod 531 of the conveying component 53 contacts the receiving column 441, pushing the receiving plate 44 to move toward the crushing box 14. The receiving plate 44 drives the slider 45 to slide on the fifth bracket 135, and the yield spring 46 is compressed, so that the receiving plate 44 is disconnected from the overlapping part with the conveying drawer 533, so that the leather in the conveying drawer 533 can move to the top of the receiving plate 44. After the conveying drawer 533 moves to the top of the receiving plate 44, the yield rod 531 is disconnected from the receiving column 441, and the receiving plate 44 and the slider 45 return to their initial positions under the elastic action of the yield spring 46.

[0046] After the conveying drawer 533 moves to above the receiving plate 44, the chain 52 drives the conveying assembly 53 to continue moving, and the turning column 5331 of the conveying drawer 533 contacts the third bracket 133. With the transmission of the chain 52, the third bracket 133 limits the movement of the conveying drawer 533, the conveying spring 532 is deformed, the conveying drawer 533 tilts, and the receiving plate 44 and the turning column 5331 overlap in the vertical direction, which facilitates the conveying of unqualified genuine leather in the conveying drawer 533 to the receiving plate 44 and into the crushing box 14 for repeated crushing; after the unqualified genuine leather in the conveying drawer 533 is dumped, the chain 52 drives the conveying assembly 53 to continue moving until the third bracket 133 breaks contact with the turning column 5331. Under the action of the conveying spring 532, the conveying drawer 533 returns to its initial position, waiting to receive unqualified genuine leather next time.

[0047] The leather that meets the crushing standards falls into the evacuation box 15 from the sieve holes on the screening basket 41. The cone 151 disperses the qualified leather screened by the screening basket 41 into the evacuation box 15 to prevent the bottom of the evacuation box 15 from being blocked. At the same time, it is convenient for the drying component 17 to further dry the qualified leather inside the evacuation box 15, and prevent the drying component 21 from not drying the leather on the storage box 24 thoroughly, thereby improving the drying efficiency. The qualified leather after drying falls into the collection box 6, which is convenient for the subsequent recycling of the leather. The collection box 6 is replaced in time after the collection is completed.

[0048] After the leather on the storage box 24 is completely emptied, the leather to be crushed can be added as needed to improve the crushing efficiency.

[0049] The present invention also discloses a process for crushing and recycling leather, which uses the above-mentioned equipment for crushing and recycling leather and comprises the following steps:

[0050] Step 1: Place the leather to be crushed on the storage box 24. Under the action of the weight of the leather, the storage box 24 and the frame 23 slide longitudinally, the drying spring 25 is compressed, the frame 23 drives the two sets of drying components 21 to move toward each other, and the closing spring 22 is compressed until the two sets of drying components 21 are closed. The drying components 21 dry the leather on the storage box 24;

[0051] Step 2: As the moisture content of the leather decreases, the gravity 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 frame 23 releases the restriction on the drying component 21, the closing spring 22 extends, and the drying component 21 opens and closes. The displacement sensor controls the flip component 26 to drive the storage box 24 to rotate one circle.

[0052] Step 3: The leather falls into the crushing box 14, and the coarse crushing roller 31 and the fine crushing roller 32 successively crush the leather twice. 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 alienation box 15 below, and the unqualified leather falls into the conveying drawer 533 below the lower feeding plate 43 through the lower feeding plate 43;

[0053] Step 4: The chain 52 drives the conveying assembly 53 to move above the receiving plate 44, and the relief rod 531 breaks the interference of the receiving plate 44 until the conveying drawer 533 is above the receiving plate 44. The third bracket 133 cooperates with the turning column 5331 to convey the unqualified leather through the receiving plate 44 to the crushing box 14 for repeated crushing;

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

[0055] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. A leather crushing and recycling device, comprising a conveying frame (12) and a supporting frame (13) of a main body, characterized in that: A crushing box (14) and a separation box (15) are sequentially arranged on the support frame (13). A drying mechanism is provided above the crushing box (14). The drying mechanism comprises two groups of drying components (21) and a frame (23). The drying components (21) are symmetrically slidably mounted on the first bracket (131) of the support frame (13). The frame (23) is longitudinally slidably mounted on the first bracket (131). A storage box (24) is rotatably mounted on the frame (23). The frame (23) drives the two groups of drying components (21) to close the leather on the drying storage box (24). The flip component (26) on the frame (23) flips the storage box. The leather is poured into the crushing box (14) and the leather is coarsely and finely crushed; a screening basket (41) is swingably provided below the crushing box (14), the screening basket (41) screens qualified leather fragments and drops them into the collecting box (6) below through the separation box (15), and a conveying mechanism is provided on the conveying frame (12), which conveys the unqualified leather fragments from the screening basket (41) to the conveying assembly (53) of the conveying mechanism through the lower delivery plate (43) on the support frame (13), and the conveying assembly (53) conveys the unqualified leather fragments to the crushing box (14) through the receiving plate (44) on the support frame (13) for repeated crushing.

2. The leather crushing and recycling equipment according to claim 1, characterized in that: The drying mechanism further comprises a drying spring (25) and two groups of closing springs (22). The drying spring (25) is arranged between the first bracket (131) and the frame (23). The drying spring (25) is slidably mounted on the first bracket (131). The frame (23) is symmetrically provided with a positioning rod (231), an oblique rod (232) and a limiting rod (233). The positioning rod (231), the oblique rod (232) and the limiting rod (233) respectively contact and cooperate with the drying frame (211) of the drying assembly (21) and drive the two groups of drying assemblies (21) to close. The sliding rod (212) of the drying assembly (21) is laterally slidably mounted on the first bracket (131). The closing spring (22) is arranged between the first bracket (131) and the drying assembly (21). The closing spring (22) is slidably mounted on the sliding rod (212).

3. The leather crushing and recycling equipment according to claim 2, characterized in that: The drying assembly (21) is provided with a contact switch. When the two 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 drying assemblies (21) are disconnected and closed, the contact switch is disconnected, and the drying assembly (21) stops drying.

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

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

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

7. The leather crushing and recycling equipment according to claim 6, characterized in that: The conveying mechanism includes two groups of sprockets (51), a chain (52) and multiple groups of conveying components (53), the sprockets (51) are rotatably mounted on the conveying frame (12), the chain (52) is arranged on the two groups of sprockets (51), and the multiple groups of conveying components (53) are evenly arranged on the chain (52), and the conveying component (53) includes a rectangular plate (534) and a conveying tray (533), the rectangular plate (534) is fixedly mounted on the chain (52), and a space is provided between the rectangular plate (534) and the conveying tray (533). A conveying spring (532), one end of the conveying spring (532) is fixedly mounted on the rectangular plate (534), and the other end of the conveying spring (532) is fixedly mounted on the conveying drawer (533). A third bracket (133) is provided on the top of the support frame (13). The receiving plate (44) and the turning column (5331) overlap in the vertical direction. The third bracket (133) contacts and cooperates with the turning columns (5331) on both sides of the conveying drawer (533) to convey unqualified genuine leather in the conveying drawer (533) to the receiving plate (44).

8. The leather crushing and recycling equipment according to claim 7, characterized in that: Slide blocks (45) are fixedly mounted on both ends of the receiving plate (44), and the slide blocks (45) are slidably mounted on the fifth bracket (135) of the support frame (13). A relief spring (46) is provided between the slide block (45) and the fifth bracket (135). Receiving columns (441) are symmetrically provided on the receiving plate (44). A relief rod (531) of the conveying assembly (53) contacts and cooperates with the receiving column (441), and the relief rod (531) pushes the receiving plate (44) to move toward the crushing box (14) through the receiving column (441).

9. The leather crushing and recycling equipment according to claim 8, characterized in that: A cone (151) is provided above the evacuation box (15), a drying component (17) is provided outside the evacuation box (15), and the collection box (6) is provided on the fourth bracket (134) of the support frame (13).

10. A process for crushing and recycling leather, using the equipment for crushing and recycling leather as claimed in claim 9, characterized in that: Step 1: Place the leather to be crushed on the storage box (24). Under the action of the weight of the leather, the storage box (24) and the frame (23) slide longitudinally, the drying spring (25) is compressed, the frame (23) drives the two sets of drying components (21) to move toward each other, the closing spring (22) is compressed until the two sets of drying components (21) are closed, and the drying components (21) dry the leather on the storage box (24); Step 2: As the moisture content of the leather decreases, the gravity on the storage box (24) decreases, and the drying spring (25) extends. During this process, the closing spring (22) is in a stationary state until the leather is dried. The frame (23) disconnects the restriction on the drying component (21), the closing spring (22) extends, and the drying component (21) is disconnected and closed. The displacement sensor drives the storage box (24) to rotate one circle by controlling the flip component (26); Step 3: The leather falls into the crushing box (14), the coarse crushing roller (31) and the fine crushing roller (32) successively crush the leather for a second time, and the crushed leather falls into the screening basket (41). The screening gear (42) drives the screening basket (41) to swing, and the qualified leather falls into the alienation box (15) below, and the unqualified leather falls into the conveying drawer (533) below the lower feeding plate (43) through the lower feeding plate (43); Step 4: The chain (52) drives the conveying assembly (53) to move above the receiving plate (44), and the lever (531) breaks the interference of the receiving plate (44) until the conveying drawer (533) is above the receiving plate (44). The third bracket (133) cooperates with the turning column (5331) 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 leather screened by the screening basket (41) into the separation box (15), and the drying component (17) further dries the qualified leather inside the separation box (15). The dried qualified leather falls into the collection box (6), and the collection box (6) is replaced in time after the collection is completed.

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