Leather repeatedly soaking device

Abstract

The present application relates to leather processing technical field, concretely is a kind of leather repeatedly water-immersed device, including the water-immersed tank for carrying water source, the outer wall of water-immersed tank is fixedly connected with the water injection pipe and drain pipe arranged in upper and lower, the water-immersed tank inside is provided with the water-immersed assembly for carrying out water-immersed cleaning to leather and the vibration assembly for driving leather to carry out up-down vibration in water source.The present application is a kind of leather repeatedly water-immersed device, the mounting bracket inside annular cylinder is rotated by driving member, so that leather can repeatedly immerse into water source with mounting bracket, realize all-round water-immersed cleaning, the cooperation design of driving side shaft and special structure slide rail (arc slot+curve slot), so that leather can slide up and down along annular cylinder axial direction while rotating in circumference, realize the alternate contact of deep and shallow water area, let leather each part evenly contact water source, further improve the uniformity of water-immersed and cleaning, ensure that there is no residual stain on leather surface.

Description

Technical Field

[0001] This invention relates to the field of leather processing technology, and more specifically to a device for repeatedly soaking leather in water. Background Technology

[0002] Leather processing is a method of treating animal hides to make leather goods. Animal hides not only contain oils and hair fibers, but also harden after drying. Therefore, in order to turn animal hides into leather that can be used by people, preparatory processes such as scraping off fat and flesh, removing hair, soaking in ash, deliming, softening, and soaking in acid must be carried out first. Then, the bare hides are tanned with tannic acid. During the tanning process, tannic acid not only replaces the water in the raw hide, but also combines with the collagen fibers of the raw hide to become heat-resistant, hydrolysis-resistant, and antimicrobial leather.

[0003] In actual operation, some leather soaking devices commonly use the method of directly immersing the entire batch of leather in water. Leather itself is soft and highly malleable. After being immersed in water, it is easily wrinkled, folded, and locally stuck together due to multiple factors such as water flow impact, its own weight, and stacking. The folded and stuck areas of leather form a closed layer, making it difficult for water to fully penetrate into the layer. Stains, salt, and tanning residues on the leather surface cannot fully contact and replace with the water, resulting in poor cleaning and soaking effects in the layered areas. This leads to uneven soaking and incomplete cleaning, directly affecting the overall quality of subsequent leather rewetting, softening, and tanning processes, making it difficult to guarantee product consistency. Summary of the Invention

[0004] The present invention aims to provide a device for repeated soaking of leather to solve the problem of incomplete cleaning when leather is immersed in water.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A leather repeated soaking device includes a soaking tank for carrying water, and an upper and lower water injection pipe and a lower drain pipe are fixedly connected to the outer wall of the soaking tank. The water injection pipe is used to inject water into the interior of the soaking tank to clean the leather, and the lower drain pipe is used to drain the cleaned water from the interior of the soaking tank. The soaking tank is provided with a soaking component for soaking and cleaning the leather and a vibration component for driving the leather to vibrate up and down in the water.

[0006] Preferably, the immersion assembly includes an annular cylinder, which is horizontally disposed inside the immersion tank. Both ends of the annular cylinder are mounted on the inner wall of the immersion tank via support shafts. An opening is provided on the outer wall of the annular cylinder, and a filter screen is installed on the inner wall of the opening. An installation port is provided on the annular cylinder, and an installation cover is installed on the inner wall of the installation port.

[0007] Preferably, a clamping member is installed inside the annular cylinder, the clamping member comprises a rectangular mounting frame, the mounting frame is in a shape of a hollow square, a plurality of U-shaped plates are mounted on the mounting frame, the plurality of U-shaped plates are sequentially and transversely arranged on the surface of the mounting frame, both ends of each U-shaped plate are provided with a rotating shaft, both sides of the U-shaped plate are fixed with side plates, the side plates are provided with positioning holes adapted to the rotating shafts, the outer surface of the rotating shaft is rotatably connected inside the corresponding positioning hole, and the inner walls on both sides of the U-shaped plate are slidably connected with two clamping plates.

[0008] Preferably, a driving member is disposed inside the annular cylinder, the driving member comprises two first lifting shafts mounted at the end of the mounting frame, the two first lifting shafts are connected with the same driving shaft, both ends of the driving shaft are provided with through holes adapted to the first lifting shafts, the first lifting shafts are in one-to-one correspondence with the through holes, the through holes are arranged coaxially with the corresponding through holes, and the outer wall of the through hole is slidably connected to the hole wall of the corresponding through hole.

[0009] Preferably, the outer wall of the end of the driving shaft away from the mounting frame is fixed with a driving side shaft, the driving side shaft is perpendicular to the driving shaft, the inner walls on both sides of the annular cylinder are provided with sliding rails for the driving side shaft to slide, the sliding rails are in one-to-one correspondence with the driving side shafts, and the driving side shaft is slidably connected inside the corresponding sliding rail.

[0010] Preferably, the sliding rail is composed of an arc-shaped groove and a curved groove, the arc-shaped groove is communicated with the curved groove, and the curved groove has peaks and valleys, that is, the arc-shaped groove and the curved groove form a closed shape.

[0011] Preferably, the vibration assembly comprises two top plates symmetrically fixed on the top of the U-shaped plate, the opposite surfaces of the two top plates are both fixed with top shafts, an annular disc is arranged between the two top shafts, a plurality of linkage blocks are fixed on both side walls of the annular disc, and the plurality of linkage blocks on each surface of the annular disc are annularly arranged on the surface of the annular disc.

[0012] Preferably, the middle part of the annular disc is connected with a linkage shaft, the linkage shaft is arranged coaxially with the annular disc, the outer walls at both ends of the driving shaft are fixed with support plates, the support plates are provided with through holes adapted to the linkage shaft, and the outer wall of the linkage shaft is rotatably connected to the hole wall of the corresponding through hole.

[0013] Preferably, the outer wall of the end of the linkage shaft extending out of the through hole is fixed with a toothed ring, the surface of the toothed ring is engaged with a rack, one side of the rack is fixed with a sleeve ring, the sleeve rings are in one-to-one correspondence with the first lifting shafts, the outer wall of the first lifting shaft is fixed on the inner wall of the corresponding sleeve ring, and the first lifting shaft can drive the rack to move downwards through the sleeve ring, so as to drive the linkage shaft to rotate.

[0014] Preferably, a positioning shaft is fixed to the top of the U-shaped plate, and a support frame is fixed to the top of the mounting frame. The support frame corresponds to the positioning shaft one by one. The support frame has a connecting hole adapted to the positioning shaft, and the outer wall of the positioning shaft is slidably connected to the hole wall of the corresponding connecting hole. A return spring is fixed between the stepped wall of the positioning shaft and the outer wall of the corresponding support frame.

[0015] The beneficial effects of this invention are as follows: 1. The staggered arrangement of the water injection and drainage pipes ensures efficient water injection and smooth drainage of wastewater after cleaning, preventing wastewater stagnation from affecting the cleaning effect. It also facilitates water circulation and reduces water waste. The mounting cover on the annular cylinder, combined with detachable clamps, allows for convenient assembly and disassembly of the leather, enabling operators to quickly fix and remove the leather, significantly improving work efficiency. The clamps utilize a U-shaped mounting frame with multiple U-shaped plates to hold and fix individual pieces of leather. The U-shaped plates, through a rotating shaft and threaded engagement with the clamping plates, allow for flexible adjustment of the clamping distance, adapting to leathers of different thicknesses and sizes. The clamping is secure and does not damage the leather, demonstrating strong versatility.

[0016] 2. The drive unit rotates the mounting frame inside the annular cylinder, allowing the leather to be repeatedly immersed in water for all-around cleaning. The design of the drive side shaft and the special structure slide rail (arc groove + curved groove) allows the leather to slide down along the axis of the annular cylinder while rotating circumferentially, achieving alternating contact between deep and shallow water areas. This ensures that all parts of the leather are evenly exposed to water, further improving the uniformity of immersion and cleaning, and ensuring that there are no residual stains on the leather surface.

[0017] 3. The drive shaft drives the first lifting shaft to slide, and then through the meshing transmission of the collar, rack and pinion, it drives the linkage shaft and the annular disk to rotate. The linkage block on the annular disk alternately contacts the top shaft. With the elastic action of the return spring, the U-shaped plate drives the leather to vibrate up and down rapidly. The vibration impact force effectively shakes off the dust, impurities and loose attachments on the leather surface, making up for the inability of simple water washing to remove stubborn attachments. This greatly improves the cleaning effect of the leather. The cooperation between the positioning shaft and the support frame in the vibration component realizes the linear sliding limit of the U-shaped plate, ensuring that the vibration process is stable and controllable and preventing the leather from shifting or falling off. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the water immersion component of the present invention; Figure 3 This is a schematic diagram of the structure of the driving component of the present invention; Figure 4 This is a schematic diagram of the structure of the clamping member of the present invention; Figure 5 This is a schematic diagram of the slide rail structure of the present invention; Figure 6 This is a schematic diagram of the structure of the vibration component of the present invention.

[0019] In the picture: 10. Immersion tank; 11. Water inlet pipe; 12. Drain pipe; 20. Immersion assembly; 21. Annular cylinder; 22. Opening; 23. Filter screen plate; 24. Mounting cover; 25. Clamping component; 2501. Mounting bracket; 2502. U-shaped plate; 2503. Rotating shaft; 2504. Side plate; 2505. Clamping plate; 2506. Limiting groove; 26. Driving component; 2601. First lifting shaft; 2602. Drive shaft; 2603. Through hole; 2605. Drive side shaft; 2606. Slide rail; 2607. Drive source; 30. Vibration assembly; 31. Top plate; 32. Top shaft; 33. Ring disc; 34. Linkage block; 35. Linkage shaft; 36. Support plate; 37. Gear ring; 38. Gear rack; 39. Collar; 310. Positioning shaft; 311. Support frame; 312. Connecting hole; 313. Return spring. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] Reference Appendix Figures 1-6 As shown, a leather repeated soaking device includes a soaking tank 10 for carrying water. The soaking tank 10 is rectangular and the cavity of the soaking tank 10 faces upward. The outer wall of the soaking tank 10 is fixedly connected to a water injection pipe 11 and a drain pipe 12. The water injection pipe 11 is located above the drain pipe 12. The water injection pipe 11 is used to inject water into the interior of the soaking tank 10 to clean the leather. The drain pipe 12 is used to drain the cleaned water from the interior of the soaking tank 10.

[0022] The immersion tank 10 is equipped with an immersion component 20 for cleaning leather.

[0023] The water immersion assembly 20 comprises an annular cylinder 21, the annular cylinder 21 is transversely arranged inside the water immersion tank 10, the middle parts of both ends of the annular cylinder 21 are mounted on the inner wall of the water immersion tank 10 through support shafts, the outer wall of the annular cylinder 21 is provided with an opening 22, the water source inside the water immersion tank 10 can flow into the interior of the annular cylinder 21 through the opening 22 to clean the leather inside the annular cylinder 21, and a filter screen plate 23 is mounted on the inner wall of the opening 22, for filtering the water source inside the annular cylinder 21.

[0024] The annular cylinder 21 is provided with a mounting opening, and a mounting cover 24 is mounted on the inner wall of the mounting opening, so that the leather can be disassembled and assembled inside the annular cylinder 21.

[0025] A clamping member 25 is mounted inside the annular cylinder 21, for clamping the leather, so as to drive the leather to be cleaned by the water source inside the annular cylinder 21.

[0026] The clamping member 25 comprises a rectangular mounting frame 2501, the mounting frame 2501 is in a shape of a hollow square, a plurality of U-shaped plates 2502 are mounted on the mounting frame 2501, the plurality of U-shaped plates 2502 are sequentially and transversely arranged on the surface of the mounting frame 2501, both ends of each U-shaped plate 2502 are provided with a rotating shaft 2503, both sides of each U-shaped plate 2502 are fixed with side plates 2504, the side plates 2504 are provided with positioning holes adapted to the rotating shafts 2503, and the outer surface of each rotating shaft 2503 is rotatably connected inside the corresponding positioning hole.

[0027] Two clamping plates 2505 are slidably connected to the inner walls of both sides of each U-shaped plate 2502, a gap is reserved between the two clamping plates 2505 for accommodating the leather, both sides of each U-shaped plate 2502 are provided with limiting grooves 2506 adapted to the clamping plates 2505, and the U-shaped plate 2502 is slidably connected inside the corresponding limiting groove 2506.

[0028] The rotating shaft 2503 is provided with a threaded section, the clamping plate 2505 is provided with a threaded groove adapted to the threaded section, and the rotating shaft 2503 is threadedly connected inside the corresponding threaded groove through the threaded section. When the rotating shaft 2503 is twisted, the rotating shaft 2503 drives the two clamping plates 2505 on its surface to approach each other, so as to clamp and position the leather.

[0029] A driving member 26 is arranged inside the annular cylinder 21, for driving the mounting frame 2501 to rotate, so as to drive the leather to be repeatedly immersed in water for cleaning inside the annular cylinder 21.

[0030] The drive unit 26 includes two first lifting shafts 2601 mounted on the ends of the mounting bracket 2501. The two first lifting shafts 2601 are symmetrical about the mounting bracket 2501 and are perpendicular to the mounting bracket 2501. The two first lifting shafts 2601 are connected by a common drive shaft 2602. The drive shaft 2602 is parallel to the mounting bracket 2501 and is perpendicular to the first lifting shafts 2601. The drive shaft 2602 is used to drive the first lifting shafts 2601 to rotate, thereby causing the mounting bracket 2501 to rotate circumferentially inside the annular cylinder 21, and causing the leather to be repeatedly immersed in water for cleaning.

[0031] The drive shaft 2602 has through holes 2603 at both ends that are adapted to the first lifting shaft 2601. The first lifting shaft 2601 corresponds to the through holes 2603 one by one. The through holes 2603 are coaxially arranged with the corresponding through holes 2603, and the outer wall of the through hole 2603 is slidably connected to the hole wall of the corresponding through hole 2603. The through holes 2603 are used to limit the first lifting shaft 2601 to maintain the stability when the drive shaft 2602 drives the first lifting shaft 2601 to rotate.

[0032] A drive side shaft 2605 is fixed to the outer wall of the end of the drive shaft 2602 away from the mounting bracket 2501. The drive side shaft 2605 is perpendicular to the drive shaft 2602. The inner walls of both sides of the annular cylinder 21 are provided with slide rails 2606 for the drive side shaft 2605 to slide. The slide rails 2606 correspond one-to-one with the drive side shaft 2605, and the drive side shaft 2605 is slidably connected inside the corresponding slide rail 2606.

[0033] It should be noted that the slide rail 2606 is composed of an arc-shaped groove and a curved groove. The arc-shaped groove and the curved groove are connected, and the curved groove has peaks and valleys. That is, the arc-shaped groove and the curved groove form a closed shape. The drive side shaft 2605 slides along the arc-shaped groove into the curved groove. When the drive side shaft 2605 slides from the peak to the valley of the curved groove, the drive side shaft 2605 drives the first lifting shaft 2601 to slide inside the through hole 2603. The drive shaft 2602 drives the mounting bracket 2501 to slide along the wall of the annular cylinder 21. When the drive side shaft 2605 slides from the valley to the peak of the curved groove, the drive side shaft 2605 drives the first lifting shaft 2601 to slide in the opposite direction inside the through hole 2603. The drive shaft 2602 drives the mounting bracket 2501 to slide along the axis of the annular cylinder 21, thereby driving the leather installed on the mounting bracket 2501 to slide up and down, so that the leather can move up and down in the water to improve the cleaning effect of the leather.

[0034] A drive source 2607 is installed on the outside of the immersion tank 10, and the output end of the drive source 2607 is connected to one end of the drive shaft 2602 to drive the drive shaft 2602 to rotate, thereby driving the leather to flip inside the annular cylinder 21.

[0035] The mounting bracket 2501 is equipped with a vibration component 30, which can clean the surface of the leather to improve the cleaning effect.

[0036] The vibration assembly 30 includes two top plates 31 symmetrically fixed to the top of the U-shaped plate 2502. Top shafts 32 are fixed to the opposite surfaces of the two top plates 31. An annular disk 33 is arranged between the two top shafts 32. Multiple linkage blocks 34 are fixed to both sides of the annular disk 33. The multiple linkage blocks 34 on each surface of the annular disk 33 are arranged in a ring on the surface of the annular disk 33. When the annular disk 33 rotates around its axial direction, when the top shaft 32 contacts the linkage block 34, the top shaft 32 will move upward due to the reaction force of the linkage block 34. The top shaft 32 will drive the connected U-shaped plate 2502 to move upward, thereby driving the connected leather to move upward in the water source. When the top shaft 32 disengages from the linkage block 34, the top shaft 32 can drive the connected U-shaped plate 2502 to reset, so as to drive the leather to move downward in the water source, thereby completing the repeated up and down vibration of the leather in the water source to shake off the attached substances on the surface of the leather.

[0037] A linkage shaft 35 is connected to the middle of the annular disk 33, and the linkage shaft 35 is coaxially arranged with the annular disk 33. The linkage shaft 35 is used to drive the annular disk 33 to rotate, thereby driving the U-shaped plate 2502 to slide up and down.

[0038] Support plates 36 are fixed to the outer walls of both ends of the drive shaft 2602. The support plates 36 have through holes that are compatible with the linkage shaft 35. The outer wall of the linkage shaft 35 is rotatably connected to the hole wall of the corresponding through hole to limit the linkage shaft 35 and maintain the stability of the linkage shaft 35 when it rotates.

[0039] A gear ring 37 is fixed to the outer wall of one end of the linkage shaft 35 that extends out of the through hole. A rack 38 is meshed with the surface of the gear ring 37. When the rack 38 moves down, the linkage shaft 35 can be rotated through the meshing transmission between the gear ring 37 and the rack 38 to complete the above operation.

[0040] A collar 39 is fixed on one side of the rack 38. The collar 39 corresponds one-to-one with the first lifting shaft 2601, and the outer wall of the first lifting shaft 2601 is fixed on the inner wall of the corresponding collar 39. The first lifting shaft 2601 can drive the rack 38 to move down through the collar 39, thereby driving the linkage shaft 35 to rotate.

[0041] A positioning shaft 310 is fixed to the top of the U-shaped plate 2502, and a support frame 311 is fixed to the top of the mounting bracket 2501. The support frame 311 corresponds to the positioning shaft 310. The support frame 311 has a connecting hole 312 that matches the positioning shaft 310, and the outer wall of the positioning shaft 310 is slidably connected to the hole wall of the corresponding connecting hole 312 to limit the positioning shaft 310 so that the U-shaped plate 2502 can slide in a straight direction.

[0042] A return spring 313 is fixed between the stepped wall of the positioning shaft 310 and the outer wall of the corresponding support frame 311 to support the positioning shaft 310 so as to drive the U-shaped plate 2502 that has been released from restriction to return to its original position.

[0043] In use, open the exposed mounting cover 24, align the edges of the entire leather piece with the two clamping plates 2505 respectively, and then rotate the rotating shaft 2503. The rotating shaft 2503 drives the two connected clamping plates 2505 to slide and move closer to each other inside the limiting groove 2506, thereby clamping the leather edge between them. After installation, inject water into the immersion tank 10 through the water injection pipe 11, so that the water can submerge the middle part of the annular cylinder 21. The water can flow into the interior of the annular cylinder 21 through the filter plate 23. Turn on the drive source 2607. The output end of the drive source 2607 drives the drive shaft 2602 to rotate. The drive shaft 2602 drives the mounting bracket 2501 to rotate around the axis of the drive shaft 2602 inside the annular cylinder 21 via the first lifting shaft 2601. The mounting bracket 2501 drives the leather held by the U-shaped plate 2502 to be immersed in the water source at the bottom of the annular cylinder 21 for cleaning. As the drive shaft 2602 continues to rotate, the leather can be repeatedly immersed in water. At the same time, during the rotation, the drive shaft 2602 can use the impact of the water source to shake off the dirt attached to the surface of the leather.

[0044] As the drive shaft 2602 rotates, the drive side shaft 2605 slides along the extended trajectory of the slide rail 2606. When the drive side shaft 2605 slides into the curved groove, the mounting bracket 2501 is located inside the water source. When the drive side shaft 2605 slides from the peak to the valley of the curved groove, it drives the first lifting shaft 2601 to move downward along its axial direction inside the through hole 2603, thereby moving the leather on the mounting bracket 2501 to the depth of the water source. When the drive side shaft 2605 slides from the valley to the peak, it drives the first lifting shaft 2601 to move upward along its axial direction inside the through hole 2603, thereby moving the leather on the mounting bracket 2501 upward to the shallow water of the water source, so that the leather can evenly contact the water source for cleaning.

[0045] As the first lifting shaft 2601 slides inside the through hole 2603, it drives the rack 38 downward via the collar 39. The rack 38, through its meshing connection with the gear ring 37, drives the linkage shaft 35 to rotate inside the through hole of the support plate 36. The linkage shaft 35 then drives the annular disk 33 to rotate. When the top shaft 32 contacts the linkage block 34, the top shaft 32 moves upward due to the reaction force of the linkage block 34. The top shaft 32 then drives the U-shaped plate 250 via the top plate 31. When the connected leather moves upward, the positioning shaft 310 moves upward inside the connecting hole 312 and stretches the return spring 313. When the top shaft 32 disengages from the linkage block 34, the return spring 313 contacts the limit and drives the U-shaped plate 2502 to move downward and reset, thereby repeatedly vibrating the leather to shake off the attached substances on the leather surface. After the leather is soaked in water, the mounting cover 24 is opened to drive off the leather, and then the water source inside the soaking tank 10 is drained. Then the dirt remaining inside the annular cylinder 21 is cleaned out.

[0046] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A leather repeated soaking device, comprising a soaking tank (10) for holding water, wherein the outer wall of the soaking tank (10) is fixedly connected to an upper and lower arranged water injection pipe (11) and a drain pipe (12), the water injection pipe (11) being used to inject water into the interior of the soaking tank (10) for cleaning the leather, and the drain pipe (12) being used to drain the cleaned water from the interior of the soaking tank (10), characterized in that: The water soaking tank (10) is internally provided with a water soaking assembly (20) for soaking and cleaning leather and a vibration assembly (30) for driving the leather to vibrate up and down in the water source.

2. The leather repeated soaking device according to claim 1, characterized in that, The water soaking assembly (20) comprises an annular cylinder (21), the annular cylinder (21) is transversely arranged inside the water soaking tank (10), the middle parts of both ends of the annular cylinder (21) are mounted on the inner wall of the water soaking tank (10) through support shafts, the outer wall of the annular cylinder (21) is provided with an opening (22), the inner wall of the opening (22) is mounted with a filter screen plate (23), the annular cylinder (21) is provided with a mounting opening, and the inner wall of the mounting opening is mounted with a mounting cover (24).

3. The leather repeated soaking device according to claim 2, characterized in that, A clamping member (25) is mounted inside the annular cylinder (21), the clamping member (25) comprises a rectangular mounting frame (2501), the mounting frame (2501) is in a hollow square shape, a plurality of U-shaped plates (2502) are mounted on the mounting frame (2501), the plurality of U-shaped plates (2502) are sequentially and transversely arranged on the surface of the mounting frame (2501), both ends of each U-shaped plate (2502) are provided with a rotating shaft (2503), both sides of each U-shaped plate (2502) are fixed with side plates (2504), the side plates (2504) are provided with positioning holes adapted to the rotating shafts (2503), the outer surface of each rotating shaft (2503) is rotatably connected inside the corresponding positioning hole, and the inner walls on both sides of each U-shaped plate (2502) are slidably connected with two clamping plates (2504).

4. The leather repeated soaking device according to claim 3, characterized in that, A driving member (26) is arranged inside the annular cylinder (21), the driving member (26) comprises two first lifting shafts (2601) mounted at the ends of the mounting frame (2501), the two first lifting shafts (2601) are connected with the same driving shaft (2602), both ends of the driving shaft (2602) are provided with through holes (2603) adapted to the first lifting shafts (2601), the first lifting shafts (2601) are in one-to-one correspondence with the through holes (2603), the through holes (2603) are arranged coaxially with the corresponding through holes (2603), and the outer wall of each through hole (2603) is slidably connected to the hole wall of the corresponding through hole (2603).

5. The leather repeated soaking device according to claim 4, characterized in that, A driving side shaft (2605) is fixed on the outer wall of the end of the driving shaft (2602) away from the mounting frame (2501), the driving side shaft (2605) is perpendicular to the driving shaft (2602), the inner walls on both sides of the annular cylinder (21) are provided with sliding rails (2606) for the driving side shaft (2605) to slide, the sliding rails (2606) are in one-to-one correspondence with the driving side shafts (2605), and the driving side shaft (2605) is slidably connected inside the corresponding sliding rail (2606).

6. The leather repeated soaking device according to claim 5, characterized in that, The sliding rail (2606) consists of an arc-shaped groove and a curved groove, the arc-shaped groove is communicated with the curved groove, and the curved groove has peaks and valleys, that is, the arc-shaped groove and the curved groove form a closed shape.

7. The leather repeated soaking device according to claim 5, characterized in that, The vibration assembly (30) includes two top plates (31) symmetrically fixed to the top of the U-shaped plate (2502). Top shafts (32) are fixed on the opposite sides of the two top plates (31). An annular disk (33) is provided between the two top shafts (32). Multiple linkage blocks (34) are fixed on both sides of the annular disk (33). Multiple linkage blocks (34) on each side of the annular disk (33) are arranged in a ring on the surface of the annular disk (33).

8. The leather repeated soaking device according to claim 7, characterized in that, The annular disk (33) is connected to a linkage shaft (35) in the middle, and the linkage shaft (35) is coaxially arranged with the annular disk (33). Support plates (36) are fixed on the outer walls of both ends of the drive shaft (2602). Through holes adapted to the linkage shaft (35) are opened on the support plates (36), and the outer wall of the linkage shaft (35) is rotatably connected to the hole wall of the corresponding through hole.

9. The leather repeated soaking device according to claim 8, characterized in that, A toothed ring (37) is fixed to the outer wall of one end of the linkage shaft (35) extending through the through hole. A rack (38) is meshed with the surface of the toothed ring (37). A collar (39) is fixed to one side of the rack (38). The collar (39) corresponds one-to-one with the first lifting shaft (2601). The outer wall of the first lifting shaft (2601) is fixed on the inner wall of the corresponding collar (39). The first lifting shaft (2601) can drive the rack (38) to move down through the collar (39), thereby driving the linkage shaft (35) to rotate.

10. The leather repeated soaking device according to claim 8, characterized in that, The top of the U-shaped plate (2502) is fixed with a positioning shaft (310), and the top of the mounting bracket (2501) is fixed with a support bracket (311). The support bracket (311) corresponds to the positioning shaft (310) one by one. The support bracket (311) is provided with a connecting hole (312) that is compatible with the positioning shaft (310). The outer wall of the positioning shaft (310) is slidably connected to the hole wall of the corresponding connecting hole (312). A return spring (313) is fixed between the stepped wall of the positioning shaft (310) and the outer wall of the corresponding support bracket (311).

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