A soaking device for leather modification based on chemical process treatment

Abstract

The present invention discloses a soaking device for leather modification based on chemical process in the field of leather processing technology, comprising a tanning barrel for soaking leather, a lifting assembly for conveying the leather into the tanning barrel being arranged above the tanning barrel, and a plurality of fixing assemblies distributed in a circular shape and at equal intervals being arranged at the bottom of the lifting assembly. The present invention adopts the fixing assembly, clamps the leather at both ends, and stretches the leather from the middle section so that the leather is fixed and stretched and laid. In a vertical manner, the height of the support block gradually rises, so that the animal skin is gradually stretched and extended; in the horizontal direction, the support blocks on both sides are stretched by the rod body to slide toward the two ends of the support rod, so that the animal skin is also gradually stretched and extended in the horizontal direction, so that the leather can fully contact with the tanning agent during the tanning process, thereby improving the tanning treatment effect on the leather.

Description

Technical Field

[0001] The invention relates to the technical field of leather processing, in particular to a soaking device for leather modification based on chemical process treatment. Background Art

[0002] Leather is a denatured, non-perishable leather obtained from animal skins through processes such as dehairing and tanning. Leather is widely used in different life scenarios.

[0003] For leather processing, the animal skin is first dehaired to remove surface hair, and then subjected to physical or chemical tanning. The existing leather tanning process usually involves pouring multiple leathers into a stirring container filled with tanning agent to allow the leather to fully react with the tanning agent. However, during the continuous stirring process in the stirring container, the leather is easily stacked and entangled under the combined action of gravity and stirring centrifugal force, resulting in areas on the leather that cannot fully contact the tanning agent. The leather is prone to color difference on the surface due to uneven tanning. Secondly, gaps are created in the leather due to entanglement or stacking. When the leather is taken out after the tanning process is completed, tanning agent will accumulate in these gaps, resulting in a small amount of tanning agent being carried out by the leather and dripping around the stirring equipment, causing corrosion.

[0004] Based on this, the present invention designs a leather modification soaking equipment based on chemical process treatment to solve the problem of stacking and entanglement generated in the above-mentioned leather tanning process affecting the leather tanning effect. Summary of the Invention

[0005] The purpose of the present invention is to provide a leather modification soaking device based on chemical process treatment to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a soaking device for leather modification based on chemical process treatment, comprising a tanning barrel for soaking leather, a lifting assembly for conveying the leather into the tanning barrel provided above the tanning barrel, and a plurality of fixing assemblies equidistantly distributed in a circular shape provided at the bottom of the lifting assembly;

[0007] The fixing assembly includes a fixing frame, the top and bottom ends of the fixing frame are symmetrically fixedly connected to fixing plates, the two fixing plates are rotatably connected to transmission rods, the two fixing plates are slidably connected to clamping rods, a second telescopic member is fixedly connected to the outer wall of one side of the fixing plate, the output shaft of the second telescopic member is fixedly connected to the clamping rod, the transmission rod and the clamping rod are respectively fixedly connected with docking rollers for clamping leather, a first telescopic member that can actively retract is fixedly connected to the middle section of the fixing frame, support blocks are respectively provided on both sides of the top of the first telescopic member, and an opening assembly is provided inside the fixing frame, and the opening assembly is used to further open the leather fixed on the fixing frame to increase the contact surface during the tanning process.

[0008] As a further solution of the present invention, the spreading assembly includes a rod body 1, and the two rod bodies 1 are respectively rotatably arranged at both sides of the bottom of the support rod, and the rod body 1 is rotatably connected to the rod body 2, and the top of the rod body 2 passes through the opening opened in the support rod and is slidably connected to the support block. The bottoms of the two rod bodies 1 are respectively rotatably connected to the first wedge plate slidably arranged inside the fixed frame, and the second wedge plate is slidably connected inside the fixed frame, and the top is contacted with one end of the first wedge plate by the first wedge plate. A retractable third wedge plate is slidably connected inside the fixed frame, and a third spring is provided inside the third wedge plate for its reset, and one end of the second wedge plate contacts one end of the third wedge plate, and a fourth wedge plate is slidably connected to the fixed frame, and one end of the third wedge plate contacts one end of the fourth wedge plate, and the other end of the fourth wedge plate contacts the clamping rod.

[0009] As a further solution of the present invention, the lifting assembly includes a hanging rail frame, which is slidably docked with the external rail. The bottom of the hanging rail frame is fixedly connected to a third telescopic part that can be actively extended and retracted. The bottom end of the third telescopic part is rotatably connected to a rotating seat. The bottom of the rotating seat is fixedly connected to a sleeve. Several fixed frames are fixed on the sleeve in a circular shape at equal intervals. A docking transmission assembly for docking with the sleeve is provided inside the tanning barrel.

[0010] As a further solution of the present invention, the docking transmission assembly includes a docking shaft, which is rotatably arranged on the inner wall of the bottom end of the tanning barrel, and is slidably connected to a connecting seat on the docking shaft. A second spring for resetting the connecting seat is sleeved on the docking shaft, and a protrusion is slidably connected to the inside of the docking shaft. A first spring for resetting the protrusion is arranged inside the docking shaft, and a slide is provided inside the docking shaft, and a slider is slidably connected to the bottom of the slide, and the slider and the protrusion are jointly connected to a traction steel rope, and a slide groove for docking with the protrusion is provided inside the sleeve.

[0011] As a further solution of the present invention, a reciprocating motor is fixedly connected to the fixed plate at the top of the fixed frame, the output shaft of the reciprocating motor is fixedly connected to the transmission rod, and the transmission rod at the top of the fixed frame and the transmission rod at the bottom are connected together through a transmission belt.

[0012] As a further solution of the present invention, the support block is in a curved cylindrical shape, and the outer walls of the support block are all smooth walls.

[0013] As a further solution of the present invention, one end of the fixed frame is fixedly connected to a sliding seat, and the transmission belt passes through the sliding seat and is rotatably connected to the fixed frame.

[0014] As a further solution of the present invention, the surface of the docking roller fixed on the transmission rod is provided with a plurality of annularly distributed notches, and the surface of the docking roller fixed on the clamping rod is provided with a plurality of bosses corresponding to the notches.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention fixes and extends the leather by adopting a fixing component, clamping at both ends, and stretching the leather from the middle. In a vertical manner, the height of the support block gradually rises, so that the animal skin is gradually stretched and extended; in the horizontal direction, the support blocks on both sides are stretched by the rod body to slide toward the two ends of the support rod, so that the animal skin is also gradually stretched and extended in the horizontal direction, so that the leather can fully contact the tanning agent during the tanning process, thereby improving the tanning treatment effect of the leather. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the fixed component structure;

[0018] Figure 3 It is a schematic diagram of the front structure of the transmission belt, transmission rod, clamping rod, docking roller, second telescopic member, fixed plate and reciprocating motor;

[0019] Figure 4 This is a schematic diagram of the internal structure of the fixed frame front;

[0020] Figure 5 This is a schematic diagram of the structure in the clamping state of the animal skin (fixed frame cross-sectional view);

[0021] Figure 6 Schematic diagram of the vertical sliding state of the support rod;

[0022] Figure 7 This is a schematic diagram of the lifting component structure;

[0023] Figure 8 This is a schematic diagram of the tanning barrel structure;

[0024] Figure 9 It is a schematic diagram of the structure of the docking transmission component;

[0025] Figure 10 It is a schematic diagram of the cross-sectional structure of the sleeve.

[0026] In the accompanying drawings: 1. Lifting assembly; 2. Support rod; 3. Fixed frame; 4. Tanning barrel; 5. Docking transmission assembly; 51. Docking shaft; 52. First spring; 53. Bump; 54. Slide; 55. Connecting seat; 56. Traction rope; 57. Slider; 58. Second spring; 6. Rod body one; 7. First telescopic member; 8. Transmission belt; 9. Transmission rod; 10. Clamping rod; 11. Docking roller; 12. Second telescopic member; 13. Fixed plate; 14. Reciprocating motor; 18. First wedge plate; 19. Second wedge plate; 20. Third wedge plate; 21. Third spring; 22. Fourth wedge plate; 23. Rod body two; 24. Support block; 25. Leather to be processed; 111. Hanging rail frame; 112. Third telescopic member; 113. Rotating seat; 114. Sleeve; 115. Slide. DETAILED DESCRIPTION

[0027] See also Figures 1-10 The present invention provides a technical solution: a soaking device for leather modification based on chemical process treatment, comprising a tanning barrel 4 for soaking leather, a lifting assembly 1 for conveying the leather into the tanning barrel 4 is provided above the tanning barrel 4, and a plurality of fixing assemblies equidistantly distributed in a ring shape are provided at the bottom of the lifting assembly 1;

[0028] The fixing assembly includes a fixing frame 3, the top and bottom ends of the fixing frame 3 are symmetrically fixedly connected to fixing plates 13, the two fixing plates 13 are rotatably connected to the transmission rods 9, the two fixing plates 13 are slidably connected to the clamping rods 10, a second telescopic member 12 is fixedly connected to the outer wall of one side of the fixing plate 13, the output shaft of the second telescopic member 12 is fixedly connected to the clamping rod 10, the transmission rod 9 and the clamping rod 10 are respectively fixedly connected with docking rollers 11 for clamping leather, the middle section of the fixing frame 3 is fixedly connected to a first telescopic member 7 that can actively retract, support blocks 24 are respectively provided on both sides of the top of the first telescopic member 7, and an opening assembly is provided inside the fixing frame 3, and the opening assembly is used to further open the leather fixed on the fixing frame 3 to increase the contact surface during the tanning process;

[0029] See also Figure 5 The upper and lower ends of the leather to be processed 25 are respectively passed through the transmission rod 9 and the clamping rod 10 on the upper and lower sides of the fixed frame 3, and the leather is clamped and fixed by the docking roller 11. The middle part of the leather is located above the support block 24; the first telescopic member 7 is actively extended and pushed to push the support rod 2 to Figure 5 Slide in the direction of V1 (the initial position of support rod 2 is as follows Figure 6As shown by the dotted line in the middle, the leather is stretched from the middle, and at the same time, the stretching assembly stretches the animal skin from the left and right sides as the support rod 2 slides, so that the support block 24 slides in the direction of V2, and finally the support rod 2 slides a distance of L, and at the same time the second telescopic member 12 is activated to push the clamping rod 10 to slide (so that the clamping rod 10 is located inside the fixed plate 13). Figure 5 ), so that the clamping effect between the two butt joint rollers 11 is stronger. In this way, when the animal hide is supported from the middle by the support rod 2, the ends of the animal hide will not fall off from between the butt joint rollers 11. After the animal hide is fixed on the fixing frame 3, it is not only supported from the middle by the support rod 2 to be stretched, but the stretching assembly also simultaneously stretches the animal hide from the left and right sides, so that the animal hide can be stretched and laid on the fixing frame 3.

[0030] After the animal skin is fixed, the fixing frame 3 is transported to the inside of the tanning barrel 4 by the lifting assembly 1 , and the animal skin stretched and laid on the fixing frame 3 can fully contact and react with the tanning agent inside the tanning barrel 4 .

[0031] As a further solution of the present invention, the expansion assembly includes a rod body 6, two of the rod bodies 6 are respectively rotatably arranged on both sides of the bottom of the support rod 2, and the rod body 6 is rotatably connected to the rod body 23, the top of the rod body 23 passes through the opening opened in the support rod 2 and is slidably connected to the support block 24, and the bottoms of the two rod bodies 6 are respectively rotatably connected to a first wedge plate 18 slidably arranged inside the fixed frame 3, and the fixed frame 3 is slidably connected to a second wedge plate 19 whose top contacts one end of the first wedge plate 18, and the fixed frame 3 is slidably connected to a retractable third wedge plate 20, and the third wedge plate 20 is provided with a third spring 21 for its reset, one end of the second wedge plate 19 contacts one end of the third wedge plate 20, and the fixed frame 3 is slidably connected to a fourth wedge plate 22, one end of the third wedge plate 20 contacts one end of the fourth wedge plate 22, and the other end of the fourth wedge plate 22 contacts the clamping rod 10;

[0032] The initial state of support rod 2 is as follows Figure 5 As shown in the dotted line part, after both ends of the animal skin are fixed by the docking rollers 11 respectively, the first telescopic member 7 is started to drive the support rod 2 to slide upward, and the support rod 2 drives the rod body 1 6 at both ends to rotate, so that the bottom of the rod body 1 6 drives the first wedge plate 18 to slide inside the fixed frame 3, and at the same time, the rod body 1 6 will drive the rod body 2 23 to rotate, so that the rod body 2 23 drives the support block 24 to slide inside the support rod 2, and when the support rod 2 is lifted upward by the transmission belt 8, it contacts the animal skin from the bottom through the support block 24; in the vertical direction, the height of the support block 24 gradually rises, so that the animal skin is gradually stretched and extended; in the horizontal direction, the support blocks 24 on both sides are stretched by the rod body 2 23 to slide toward the two ends of the support rod 2, so that the animal skin is also gradually stretched and extended in the horizontal direction;

[0033] See also Figure 4 When the first wedge plate 18 slides inside the fixed frame 3 under the traction of the rod body 6, the first wedge plate 18 will slide to a position in contact with the second wedge plate 19, and as the sliding continues, the first wedge plate 18 will push the second wedge plate 19 to slide inside the fixed frame 3, and the second wedge plate 19 will push the third wedge plate 20 to slide inside the fixed frame 3, and the third wedge plate 20 will push the fourth wedge plate 22 to slide on the fixed frame 3, and the fourth wedge plate 22 will contact and squeeze the clamping rod 10, so that The clamping effect between the clamping rod 10 and the transmission rod 9 is tighter. When the fourth wedge plate 22 cannot continue to slide, the second wedge plate 19 continues to squeeze the third wedge plate 20, so that the third spring 21 drives the third wedge plate 20 to extend and retract. Because the first telescopic member 7 drives the support rod 2 to rise to support the animal skin from the middle section, the two ends of the animal skin will generate a greater pulling force on the docking roller 11. The clamping rod 10 is further reinforced by the fourth wedge plate 22, so that the fixing effect of the two ends of the animal skin inside the docking roller 11 is more stable.

[0034] As a further solution of the present invention, the lifting assembly 1 includes a hanging rail frame 111, the hanging rail frame 111 is slidably docked with the external rail, the bottom of the hanging rail frame 111 is fixedly connected to a third telescopic member 112 that can be actively retracted, the bottom end of the third telescopic member 112 is rotatably connected to a rotating seat 113, the bottom of the rotating seat 113 is fixedly connected to a sleeve 114, a plurality of the fixed frames 3 are fixed on the sleeve 114 in an annular shape and equidistantly, and the tanning barrel 4 is provided with a docking transmission assembly 5 for docking with the sleeve 114;

[0035] The docking transmission assembly 5 includes a docking shaft 51, which is rotatably arranged on the inner wall of the bottom end of the tanning barrel 4. A connecting seat 55 is slidably connected to the docking shaft 51. A second spring 58 for resetting the connecting seat 55 is sleeved on the docking shaft 51. A protrusion 53 is slidably connected to the inside of the docking shaft 51. A first spring 52 for resetting the protrusion 53 is arranged inside the docking shaft 51. A slide 54 is provided inside the docking shaft 51. A slider 57 is slidably connected to the bottom of the slide 54. The slider 57 and the protrusion 53 are jointly connected to a traction steel rope 56. The sleeve 114 is provided with a slide groove 115 for docking with the protrusion 53.

[0036] See also Figure 6 , docking the hanging rail frame 111 with the external hanging rail so that it can slide along the hanging rail, controlling the height of the sleeve 114 through the third telescopic member 112 so that it extends into the tanning barrel 4 to soak the animal hide, and taking out the hide after soaking;

[0037] After the third telescopic member 112 docks the sleeve 114 at the upper end of the docking shaft 51, the third telescopic member 112 slowly releases the sleeve 114 downward, so that the sleeve 114 gradually contacts the connecting seat 55 and squeezes the second spring 58 to slide downward. When the connecting seat 55 slides to a position in contact with the slider 57, the sleeve 114 continues to slide down, so that the slider 57 pulls the protrusion 53 to slide through the traction rope 56, so that the protrusion 53 gradually slides to the outside of the docking shaft 51 until it enters the inside of the slide groove 115. The docking shaft 51 is controlled to rotate by an external driving member. When the protrusion 53 rotates to a position in contact with the inner wall of the slide groove 115, the protrusion 53 will drive the sleeve 114 to rotate together, so that the animal skin mounted on the sleeve 114 will rotate inside the tanning barrel 4, so that the animal skin can fully contact and react with the tanning agent in the tanning barrel 4.

[0038] When the tanning reaction is completed, the third telescopic part 112 pulls the sleeve 114 upward. After being released from the pressure of the sleeve 114, the connecting seat 55 will repeatedly rise and reset under the elastic force of the second spring 58, and the protrusion 53 will also retract to the inside of the docking shaft 51 under the reset elastic force of the first spring 52.

[0039] As a further solution of the present invention, a reciprocating motor 14 is fixedly connected to the fixed plate 13 at the top of the fixed frame 3, and the output shaft of the reciprocating motor 14 is fixedly connected to the transmission rod 9. The transmission rod 9 at the top and the transmission rod 9 at the bottom of the fixed frame 3 are connected together by a transmission belt 8;

[0040] See also Figure 2-3 When the fixed frame 3 rotates inside the tanning barrel 4 and contacts the tanning agent, the reciprocating motor 14 is started to drive the transmission rod 9 to perform periodic reciprocating motion. The transmission rod 9 at the top of the fixed frame 3 drives the bottom transmission rod 9 to rotate together through the transmission belt 8; when the reciprocating motor 14 rotates clockwise, the top transmission rod 9 will rotate to drive the docking roller 11 to pull the leather, and the bottom transmission rod 9 will relax the bottom leather as it rotates; and when the reciprocating motor 14 rotates counterclockwise, the top transmission rod 9 relaxes the leather, and the bottom transmission rod 9 pulls the leather. The purpose of this is that under the reciprocating motion control of the reciprocating motor 14, the entire leather can slide in the same direction, so that the contact position of the leather and the docking roller 11 changes, which can further make the leather fully contact with the tanning agent and avoid insufficient contact between the leather part clamped by the docking roller 11 and the tanning agent.

[0041] As a further solution of the present invention, the support block 24 is in a curved cylindrical shape, and the outer walls of the support block 24 are all smooth walls;

[0042] See also Figure 5In order to ensure that the support block 24 does not scratch the leather during the sliding and supporting process, the cylindrical support block 24 can not only provide sufficient support, but also effectively relieve the contact surface pressure.

[0043] As a further solution of the present invention, one end of the fixed frame 3 is fixedly connected to a sliding seat, and the transmission belt 8 passes through the sliding seat and is rotatably connected to the fixed frame 3;

[0044] See also Figure 2 In order to prevent the transmission belt 8 from hindering the rotation of the rod body 6, the transmission belt 8 is passed through the fixed frame 3 through the sliding seat to connect the two transmission rods 9.

[0045] As a further solution of the present invention, the surface of the docking roller 11 fixed on the transmission rod 9 is provided with a plurality of annularly distributed notches, and the surface of the docking roller 11 fixed on the clamping rod 10 is provided with a plurality of bosses corresponding to the notches;

[0046] In order to increase the friction generated when the two docking rollers 11 are docked, if only two cylindrical docking rollers 11 are used to clamp the leather, the leather can easily drive the docking rollers 11 to rotate under the action of tension. However, the two docking rollers 11 used for notch docking through the boss can better fix the animal skin under the action of pressure.

[0047] Working principle: The top of the animal skin after depilation is passed through the transmission rod 9 and the clamping rod 10 at the top of the fixed frame 3, and the leather is clamped and fixed by the docking roller 11. In the same way, the bottom of the animal skin is passed through the transmission rod 9 and the clamping rod 10 at the bottom of the fixed frame 3. The middle section of the leather is located in front of the support rod 2, and the leather is also clamped and fixed by the docking roller 11. The first telescopic member 7 is started to drive the support rod 2 to slide upward, and the support rod 2 drives the rod body 6 at both ends to rotate, so that the bottom of the rod body 6 drives the first wedge plate 1 8 slides inside the fixed frame 3, and at the same time, the rod body 1 6 drives the rod body 2 23 to rotate, so that the rod body 2 23 drives the support block 24 to slide inside the support rod 2. When the support rod 2 is lifted upward by the transmission belt 8, it contacts the animal skin from the bottom through the support block 24; in the vertical direction, the height of the support block 24 gradually rises, so that the animal skin is gradually stretched and extended; in the horizontal direction, the support blocks 24 on both sides are stretched by the rod body 2 23 to slide toward the two ends of the support rod 2, so that the animal skin is also gradually stretched and extended in the horizontal direction;

[0048] The height of the sleeve 114 is controlled by the third telescopic member 112 so that it extends into the tanning barrel 4 to soak the animal skin, and the leather is taken out after the soaking is completed. After the third telescopic member 112 docks the sleeve 114 to the upper end of the docking shaft 51, the sleeve 114 is slowly released downward by the third telescopic member 112, so that the sleeve 114 gradually contacts the connecting seat 55 and squeezes the second spring 58 to slide downward. When the connecting seat 55 slides to a position in contact with the slider 57, the sleeve 114 continues to slide down so that the slider 57 pulls the protrusion 53 to slide through the traction steel rope 56, so that the protrusion 53 gradually slides toward the outside of the docking shaft 51 until it enters the inside of the slide groove 115. The docking shaft 51 is controlled to rotate by an external driving member. When the protrusion 53 rotates to a position in contact with the inner wall of the slide groove 115, the protrusion 53 will drive the sleeve 114 to rotate together, so that the animal skin mounted on the sleeve 114 will rotate inside the tanning barrel 4.

Claims

1. A soaking device for leather modification based on chemical process treatment, comprising a tanning barrel (4) for soaking leather, characterized in that: A lifting assembly (1) for conveying leather into the tanning barrel (4) is provided above the tanning barrel (4), and a plurality of fixing frames (3) distributed in a ring shape are provided at the bottom of the lifting assembly (1); Each fixed frame (3) is provided with a fixing assembly on both the upper and lower sides; the fixing assembly includes a fixing plate (13) fixedly connected to the fixed frame (3), and a transmission rod (9) is rotatably connected to the fixing plate (13); a clamping rod (10) is also slidably connected to the fixing plate (13), and the fixing assembly also includes a second telescopic member (12) capable of driving the clamping rod (10) to slide along the fixed plate (13), and the transmission rod (9) and the clamping rod (10) are respectively fixedly connected to a docking roller (11) for clamping leather, and a first telescopic member (7) capable of active telescoping is fixedly connected to the middle section of the fixed frame (3), and support blocks (24) are respectively provided on both sides of the top of the first telescopic member (7), and a spreading assembly is provided inside the fixed frame (3), and the spreading assembly is used to spread the leather on the fixed frame (3) to increase the contact surface during the tanning process; The spreading assembly includes a rod body (6), two rod bodies (6) are rotatably arranged on both sides of the bottom of the support rod (2), and a rod body (23) is rotatably connected to the rod body (6). The top end of the rod body (23) passes through an opening provided in the interior of the support rod (2) and is slidably connected to the support block (24); The bottoms of the two rod bodies (6) are respectively rotatably connected to a first wedge plate (18) slidably arranged inside the fixed frame (3), and the fixed frame (3) is slidably connected to a second wedge plate (19) whose top end contacts one end of the first wedge plate (18). The fixed frame (3) is slidably connected to a retractable third wedge plate (20), and a third spring (21) for resetting the third wedge plate (20) is provided inside. One end of the second wedge plate (19) contacts one end of the third wedge plate (20). A fourth wedge plate (22) is slidably connected to the fixed frame (3), one end of the third wedge plate (20) contacts one end of the fourth wedge plate (22), and the other end of the fourth wedge plate (22) contacts the clamping rod (10).

2. The leather modification soaking device based on chemical process treatment according to claim 1, characterized in that: The lifting assembly (1) includes a hanging rail frame (111), the hanging rail frame (111) is slidably docked with an external rail, the bottom of the hanging rail frame (111) is fixedly connected to a third telescopic member (112) that can be actively telescopic, the bottom end of the third telescopic member (112) is rotatably connected to a rotating seat (113), the bottom of the rotating seat (113) is fixedly connected to a sleeve (114), a plurality of the fixed frames (3) are fixed on the sleeve (114) in an annular shape at equal intervals, and a docking transmission assembly (5) for docking with the sleeve (114) is provided inside the tanning barrel (4).

3. The leather modification soaking device based on chemical process treatment according to claim 2, characterized in that: The docking transmission assembly (5) includes a docking shaft (51), the docking shaft (51) is rotatably arranged on the inner wall of the bottom end of the tanning barrel (4), a connecting seat (55) is slidably connected to the docking shaft (51), a second spring (58) for resetting the connecting seat (55) is sleeved on the docking shaft (51), a protrusion (53) is slidably connected to the inside of the docking shaft (51), a first spring (52) for resetting the protrusion (53) is arranged inside the docking shaft (51), a slideway (54) is provided inside the docking shaft (51), a slider (57) is slidably connected to the bottom of the slideway (54), the slider (57) and the protrusion (53) are jointly connected to a traction steel rope (56), and a slide groove (115) for docking with the protrusion (53) is provided inside the sleeve (114).

4. The leather modification soaking device based on chemical process treatment according to claim 1, characterized in that: A reciprocating motor (14) is fixedly connected to the fixed plate (13) at the top of the fixed frame (3), the output shaft of the reciprocating motor (14) is fixedly connected to the transmission rod (9), and the transmission rod (9) at the top of the fixed frame (3) and the transmission rod (9) at the bottom are connected together via a transmission belt (8).

5. The leather modification soaking equipment based on chemical process treatment according to claim 1, characterized in that: The support block (24) is in the shape of a curved cylinder, and the outer walls of the support block (24) are all smooth walls.

6. The leather modification soaking device based on chemical process treatment according to claim 4, characterized in that: One end of the fixed frame (3) is fixedly connected to a sliding seat, and the transmission belt (8) passes through the sliding seat and is rotationally connected to the fixed frame (3).

7. The leather modification soaking equipment based on chemical process treatment according to claim 1, characterized in that: The surface of the docking roller (11) fixed on the transmission rod (9) is provided with a plurality of annularly distributed notches, and the surface of the docking roller (11) fixed on the clamping rod (10) is provided with a plurality of bosses corresponding to the notches.

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