Soaking equipment for leather modification based on chemical process treatment
By combining the fixing component and the spreading component, the stacking and winding problems during the leather tanning process are solved, and the full contact between the leather and the tanning agent is achieved, which improves the tanning effect and prevents the tanning agent from remaining.
Patent Information
- Application Number
- CN202510668172.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2045-05-23
AI Technical Summary
During the tanning process of existing leather, the leather is prone to stacking and wrapping, resulting in uneven tanning, and the tanning agent remains in the gaps and causes corrosion.
The leather is clamped with a fixed assembly and stretched the leather in the vertical and horizontal directions by the opening assembly to make it fully contact with the tanning agent, and the uniform soaking of the leather in the tanning barrel is achieved in combination with the lifting assembly.
It improves the uniformity and tanning effect of leather tanning, avoids tanning agent residue, and enhances the corrosion resistance of tanning equipment.
Smart Images
Figure CN120249575A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of leather processing, and specifically to an immersion device for leather modification based on chemical process treatment. Background Technique
[0002] Leather is the leather that is not easily perishable after being processed from animal skins through processes such as hair removal and tanning, and leather is widely used in different life scenarios.
[0003] For leather processing, first, the surface hair of the animal skin is removed through hair removal treatment, and then physical or chemical tanning processing is carried out. In the existing leather tanning processing process, usually multiple leathers are poured into a stirring container filled with tanning agent to make the leathers fully react with the tanning agent. However, during the continuous stirring process of the stirring container, the leathers are prone to stacking and entanglement under the combined action of gravity and stirring centrifugal force, resulting in parts of the leathers that cannot come into full contact with the tanning agent. The leather is prone to color difference on the surface due to uneven tanning; secondly, the gaps generated by the entanglement or stacking of the leathers will accumulate tanning agent when the leather is taken out after the leather tanning processing is completed. The tanning agent is carried out by a small amount of leather and drips around the stirring equipment, causing corrosion.
[0004] Based on this, the present invention designs an immersion device for leather modification based on chemical process treatment to solve the problems of stacking and entanglement during leather tanning that affect the leather tanning effect. Summary of the Invention
[0005] The purpose of the present invention is to provide an immersion device for leather modification based on chemical process treatment to solve the problems raised in the above background technique.
[0006] To achieve the above purpose, the present invention provides the following technical solution: An immersion device for leather modification based on chemical process treatment, including a tanning barrel for immersing leather, a hoisting component is arranged above the tanning barrel for transporting the leather into the interior of the tanning barrel, and a plurality of fixing components are arranged at equal intervals in a ring shape at the bottom of the hoisting component; The fixing component includes a fixing frame, fixing plates are symmetrically and fixedly connected to the top and bottom of the fixing frame respectively, driving rods are rotatably connected to both of the fixing plates, clamping rods are slidably connected to both of the fixing plates, a second telescopic member is fixedly connected to the outer wall of one side of the fixing plate, and the output shaft of the second telescopic member is fixedly connected to the clamping rod. Docking rollers for clamping leather are fixedly connected to both the driving rod and the clamping rod respectively. A first telescopic member capable of actively telescoping is fixedly connected to the middle section of the fixing frame, support blocks are arranged on both sides of the top of the first telescopic member, and a spreading component is arranged inside the fixing frame. The spreading component is used to further open the leather fixed on the fixing frame to increase the contact surface during the tanning process.
[0007] As a further solution of the present invention, the spreading component includes a first rod body. Both of the two first rod bodies are rotatably arranged on both sides of the bottom of the support rod. A second rod body is rotatably connected to the first rod body. The top end of the second rod body passes through an opening formed inside the support rod and is slidably connected to the support block. Both bottoms of the two first rod bodies are respectively rotatably connected to a first wedge plate slidably arranged inside the fixed frame. A second wedge plate is slidably connected inside the fixed frame, and the top end of the second wedge plate contacts one end of the first wedge plate. A telescopic third wedge plate is slidably connected inside the fixed frame. A third spring for resetting it is arranged inside the third wedge plate. One end of the second wedge plate contacts one end of the third wedge plate. A fourth wedge plate is slidably connected to the fixed frame. One end of the third wedge plate contacts one end of the fourth wedge plate. The other end of the fourth wedge plate contacts the clamping rod.
[0008] As a further solution of the present invention, the lifting component includes a lifting rail frame. The lifting rail frame is slidably butted with an external track. A third telescopic member capable of active telescoping is fixedly connected to the bottom of the lifting rail frame. The bottom end of the third telescopic member is rotatably connected to a rotating seat. A sleeve is fixedly connected to the bottom of the rotating seat. A plurality of the fixed frames are fixedly arranged on the sleeve at equal intervals in a ring shape. A docking transmission component for docking with the sleeve is arranged inside the tanning barrel.
[0009] As a further solution of the present invention, the docking transmission component includes a docking shaft. The docking shaft is rotatably arranged on the inner wall of the bottom end of the tanning barrel. A connecting seat is slidably connected to the docking shaft. A second spring for resetting the connecting seat is sleeved on the docking shaft. A convex block is slidably connected inside the docking shaft. A first spring for resetting the convex block is arranged inside the docking shaft. A slideway is formed inside the docking shaft. A slider is slidably connected to the bottom of the slideway. A traction steel cable is jointly connected between the slider and the convex block. A chute for docking with the convex block is formed inside the sleeve.
[0010] As a further solution of the present invention, a reciprocating motor is fixedly connected to the fixing plate at the top end of the fixed frame. The output shaft of the reciprocating motor is fixedly connected to a transmission rod. The transmission rod at the top end of the fixed frame and the transmission rod at the bottom end are jointly connected by a transmission belt.
[0011] As a further solution of the present invention, the support block is in a curved cylindrical shape, and the outer wall of the support block is a smooth wall.
[0012] As a further solution of the present invention, a sliding seat is fixedly connected to one end of the fixed frame. The transmission belt passes through the sliding seat and is rotatably connected to the fixed frame.
[0013] As a further solution of the present invention, a plurality of annularly distributed notches are formed on the surface of the docking roller fixed on the transmission rod, and a plurality of bosses corresponding to the notches are arranged on the surface of the docking roller fixed on the clamping rod.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By adopting a fixing component, clamping at both ends and stretching the leather from the middle section, the leather is fixed and extended for laying. Vertically, the height of the support blocks gradually increases, so that the animal skin is gradually stretched and extended; horizontally, the support blocks on both sides are stretched by the second rod and slide towards both ends of the support rod, so that the animal skin is also gradually stretched and extended horizontally, enabling the leather to fully contact the tanning agent during the tanning process and improving the tanning treatment effect of the leather. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the fixing component; Figure 3 is a front view structural diagram of the conveyor belt, transmission rod, clamping rod, docking roller, second telescopic member, fixing plate and reciprocating motor; Figure 4 is a front view internal structure diagram of the fixing frame; Figure 5 is a schematic diagram of the clamping state of the animal skin (cross-sectional view of the fixing frame); Figure 6 is a schematic diagram of the vertical sliding state of the support rod; Figure 7 is a schematic diagram of the lifting component structure; Figure 8 is a schematic diagram of the tanning barrel structure; Figure 9 is a schematic diagram of the docking drive component structure; Figure 10 is a schematic diagram of the cross-sectional structure of the sleeve.
[0016] In the attached drawings: 1, hoisting assembly; 2, support rod; 3, fixed frame; 4, tanning barrel; 5, docking drive assembly; 51, docking shaft; 52, first spring; 53, bump; 54, slideway; 55, connecting seat; 56, towing steel 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, chute. Detailed implementation mode
[0017] Please refer to Figures 1 - 10 , the present invention provides a technical solution: an immersion device for leather modification based on chemical process treatment, including a tanning barrel 4 for immersing leather, a hoisting assembly 1 for transporting leather into the interior of the tanning barrel 4 is arranged above the tanning barrel 4, and a plurality of fixing components are arranged at equal intervals in a ring shape at the bottom of the hoisting assembly 1; The fixing component includes a fixed frame 3, fixing plates 13 are symmetrically and fixedly connected to the top and bottom of the fixed frame 3 respectively, transmission rods 9 are rotatably connected to both of the fixing plates 13, clamping rods 10 are slidably connected to both of the fixing plates 13, a second telescopic member 12 is fixedly connected to the outer wall of one side of the fixing plate 13, and the output shaft of the second telescopic member 12 is fixedly connected to the clamping rod 10. Docking rollers 11 for clamping leather are fixedly connected to both the transmission rod 9 and the clamping rod 10. A first telescopic member 7 capable of actively telescoping is fixedly connected to the middle section of the fixed frame 3, support blocks 24 are arranged on both sides of the top of the first telescopic member 7, and a spreading component is arranged inside the fixed frame 3. The spreading component is used to further open the leather fixed on the fixed frame 3 to increase the contact surface during the tanning process; Refer to Figure 5 , pass the upper and lower ends of the leather 25 to be processed through the inside of the transmission rod 9 and the clamping rod 10 on the upper and lower sides of the fixed frame 3 respectively, clamp and fix the leather through the docking roller 11, and the middle section of the leather is located above the support block 24; actively telescoping the first telescopic member 7 to push the support rod 2 to slide in the direction of V1 in Figure 5 (the initial position of the support rod 2 is as shown by the dotted line in Figure 6 ), stretch the leather from the middle, and at the same time, the spreading component 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. Finally, the support rod 2 slides a distance of L, and at the same time, start the second telescopic member 12 to push the clamping rod 10 to slide (make the clamping rod 10 located inside the fixed plate 13 Figure 5at the position shown in [Figure], so that the clamping effect between the two docking rollers 11 is stronger. In this way, when the animal skin is supported from the middle by the support rod 2, the two ends of the animal skin will not fall off between the docking rollers 11. After the animal skin is fixed on the fixing frame 3, it is not only supported and spread open from the middle by the support rod 2, but at the same time, the spreading component synchronously stretches the animal skin from the left and right sides, so that the animal skin can be extended and laid on the fixing frame 3; After the animal skin is fixed, the fixing frame 3 is transported into the tanning barrel 4 through the hoisting component 1, and the animal skin extended and laid on the fixing frame 3 can fully contact and react with the tanning agent inside the tanning barrel 4.
[0018] As a further solution of the present invention, the spreading component includes a first rod body 6. The two first rod bodies 6 are respectively rotatably arranged on both sides of the bottom of the support rod 2. A second rod body 23 is rotatably connected to the first rod body 6. The top end of the second rod body 23 passes through an opening formed inside the support rod 2 and is slidably connected to a support block 24. The bottoms of the two first rod bodies 6 are respectively rotatably connected to a first wedge plate 18 slidably arranged inside the fixing frame 3. A second wedge plate 19 whose top end is in contact with one end of the first wedge plate 18 is slidably connected inside the fixing frame 3. A retractable third wedge plate 20 is slidably connected inside the fixing frame 3. A third spring 21 for its reset is arranged inside the third wedge plate 20. One end of the second wedge plate 19 is in contact with one end of the third wedge plate 20. A fourth wedge plate 22 is slidably connected to the fixing frame 3. One end of the third wedge plate 20 is in contact with one end of the fourth wedge plate 22. The other end of the fourth wedge plate 22 is in contact with the clamping rod 10; The initial state of the support rod 2 is as Figure 5 shown by the dotted line in [Figure]. When both ends of the animal skin are fixed by the docking rollers 11 respectively, start the first telescopic member 7 to drive the support rod 2 to slide upward. The support rod 2 drives the first rod bodies 6 at both ends to rotate, so that the bottom of the first rod body 6 drives the first wedge plate 18 to slide inside the fixing frame 3. At the same time, the first rod body 6 will also drive the second rod body 23 to rotate, so that the second rod body 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 of the animal skin 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 second rod body 23 and slide toward both ends of the support rod 2, so that the animal skin is also gradually stretched and extended in the horizontal direction; See Figure 4, when the first wedge plate 18 slides inside the fixed frame 3 under the traction of the first rod 6, the first wedge plate 18 will slide to a position where it contacts the second wedge plate 19, and as the first wedge plate 18 continues to slide, it will push the second wedge plate 19 to slide inside the fixed frame 3. The second wedge plate 19 will then 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. The fourth wedge plate 22 contacts and presses the clamping rod 10, making the clamping effect between the clamping rod 10 and the transmission rod 9 tighter. When the fourth wedge plate 22 can no longer slide, the second wedge plate 19 continuously presses the third wedge plate 20, causing the third spring 21 to drive the third wedge plate 20 to expand and contract; because after 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 exert a greater pulling force on the docking roller 11. By further strengthening the clamping rod 10 through the fourth wedge plate 22, the fixing effect of the two ends of the animal skin inside the docking roller 11 becomes more stable.
[0019] As a further solution of the present invention, the lifting component 1 includes a suspension rail frame 111, which is slidably docked with an external rail. The bottom of the suspension rail frame 111 is fixedly connected with a third telescopic member 112 that can actively expand and contract. The bottom end of the third telescopic member 112 is rotatably connected with a rotating seat 113, and the bottom of the rotating seat 113 is fixedly connected with a sleeve 114. A plurality of the fixed frames 3 are fixedly arranged on the sleeve 114 at equal intervals in a ring shape. Inside the tanning barrel 4, there is a docking transmission component 5 for docking with the sleeve 114. The docking transmission component 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 convex block 53 is slidably connected inside the docking shaft 51. A first spring 52 for resetting the convex block 53 is arranged inside the docking shaft 51. A slideway 54 is opened inside the docking shaft 51. A slider 57 is slidably connected to the bottom of the slideway 54. The slider 57 and the convex block 53 are jointly connected with a traction steel cable 56. A chute 115 for docking with the convex block 53 is opened inside the sleeve 114. See Figure 6 , dock the suspension rail frame 111 with an external suspension rail so that it can slide along the suspension rail. Control the height of the sleeve 114 through the third telescopic member 112 to extend it into the tanning barrel 4 to soak the animal skin, and take out the leather after soaking is completed. After the third telescopic member 112 docks the sleeve 114 at the upper end of the docking shaft 51, the sleeve 114 is slowly released downward through the third telescopic member 112, so that the sleeve 114 gradually contacts the connecting seat 55 and presses the second spring 58 to slide downward. When the connecting seat 55 slides to the position where it contacts the slider 57, the sleeve 114 continues to slide downward, causing the slider 57 to pull the convex block 53 to slide through the traction steel cable 56, so that the convex block 53 gradually slides outward from the docking shaft 51 until it enters the inside of the chute 115. The docking shaft 51 is controlled to rotate by an external driving member. When the convex block 53 rotates to the position where it contacts the inner wall of the chute 115, the convex block 53 will drive the sleeve 114 to rotate together, so that the animal skin installed on the sleeve 114 will rotate inside the tanning barrel 4, enabling the animal skin to fully contact and react with the tanning agent in the tanning barrel 4; When the tanning reaction is completed, the third telescopic member 112 stretches the sleeve 114 upward. After the pressure on the sleeve 114 is removed, the connecting seat 55 will rise and reset again under the elastic force of the second spring 58, and the convex block 53 will also retract into the docking shaft 51 under the reset elastic force of the first spring 52.
[0020] As a further solution of the present invention, a reciprocating motor 14 is fixedly connected to the fixing plate 13 at the top end of the fixing frame 3. The output shaft of the reciprocating motor 14 is fixedly connected to the transmission rod 9. The transmission rod 9 at the top end of the fixing frame 3 and the transmission rod 9 at the bottom end are jointly connected by a transmission belt 8; See Figures 2 - 3 , when the fixing frame 3 rotates inside the tanning barrel 4 and contacts the tanning agent for reaction, the reciprocating motor 14 is started to drive the transmission rod 9 to perform periodic reciprocating motion. The transmission rod 9 at the top end of the fixing frame 3 drives the transmission rod 9 at the bottom to rotate together through the transmission belt 8; when the reciprocating motor 14 rotates clockwise, the transmission rod 9 at the top end will rotate to drive the docking roller 11 to pull the leather, while the transmission rod 9 at the bottom will rotate to relax the leather at the bottom; when the reciprocating motor 14 rotates counterclockwise, the transmission rod 9 at the top relaxes the leather, while the transmission rod 9 at the bottom pulls the leather. The purpose of doing this is that under the reciprocating motion control of the reciprocating motor 14, the entire leather can slide along the same direction, changing the contact position between the leather and the docking roller 11, which can further enable the leather to fully contact the tanning agent and avoid insufficient contact between the part of the leather clamped by the docking roller 11 and the tanning agent.
[0021] As a further solution of the present invention, the support block 24 is a curved cylindrical shape, and the outer wall of the support block 24 is a smooth wall; See Figure 5 , in order to ensure that the support block 24 will not scratch the leather during sliding and supporting, the cylindrical support block 24 can not only provide sufficient support effect, but also effectively relieve the contact surface pressure.
[0022] As a further solution of the present invention, one end of the fixed frame 3 is fixedly connected with a sliding seat, and the transmission belt 8 passes through the sliding seat and is rotatably connected with the fixed frame 3; See Figure 2 , in order to prevent the transmission belt 8 from hindering the rotation of the first rod 6, the transmission belt 8 passes through the fixed frame 3 through the sliding seat to drive and connect the two transmission rods 9.
[0023] As a further solution of the present invention, a plurality of annularly distributed notches are formed on the surface of the docking roller 11 fixed on the transmission rod 9, and a plurality of bosses corresponding to the notches are arranged on the surface of the docking roller 11 fixed on the clamping rod 10; 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, for the two docking rollers 11 with bosses for notch docking, the animal skin can be fixed better under the action of pressure.
[0024] Working principle: Pass the top of the animal skin after hair removal treatment through the transmission rod 9 and the inside of the clamping rod 10 at the top of the fixed frame 3, and clamp and fix the leather through the docking roller 11. In the same way, pass the bottom of the animal skin through the transmission rod 9 and the inside of 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 through the docking roller 11. Start the first telescopic member 7 to drive the support rod 2 to slide upward. The support rod 2 drives the first rods 6 at both ends to rotate, so that the bottom of the first rod 6 drives the first wedge plate 18 to slide inside the fixed frame 3. At the same time, the first rod 6 will also drive the second rod 23 to rotate, so that the second rod 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, the support block 24 contacts the animal skin from the bottom of the animal skin; 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 second rod 23 and slide toward both ends of the support rod 2, so that the animal skin is also gradually stretched and extended in the horizontal direction; The height of the sleeve 114 is controlled by the third telescopic member 112 to extend it 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 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 presses the second spring 58 to slide downward. When the connecting seat 55 slides to the position where it contacts the slider 57, the sleeve 114 continues to slide downward, so that the slider 57 pulls the convex block 53 to slide through the traction steel cable 56, so that the convex block 53 gradually slides outward from the docking shaft 51 until it enters the inner part of the chute 115. The docking shaft 51 is controlled to rotate by an external driving member. When the convex block 53 rotates to the position where it contacts the inner wall of the chute 115, the convex block 53 will drive the sleeve 114 to rotate together, so that the animal skin installed on the sleeve 114 will rotate inside the tanning barrel 4.
Claims
1. An immersion device for leather modification based on chemical process treatment, including a tanning barrel (4) for immersing leather, characterized in that: Above the tanning barrel (4), a lifting component (1) is provided for conveying leather into the interior of the tanning barrel (4). At the bottom of the lifting component (1), a number of fixing frames (3) are arranged in a circular distribution. On both the upper and lower sides of each fixing frame (3), a fixing component is provided. The fixing component includes a fixing plate (13) fixedly connected to the fixing frame (3). 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). The fixing component further includes a second telescopic member (12) capable of driving the clamping rod (10) to slide along the fixing plate (13). Docking rollers (11) for clamping leather are respectively fixedly connected to the transmission rod (9) and the clamping rod (10). In the middle section of the fixing frame (3), a first telescopic member (7) capable of actively telescoping is fixedly connected. On both sides of the top of the first telescopic member (7), support blocks (24) are respectively provided. An expanding component is arranged inside the fixing frame (3), and the expanding component is used to expand the leather located on the fixing frame (3) to increase the contact surface during the tanning process.
2. The soaking device for leather modification based on chemical engineering process according to claim 1, characterized in that: The expanding component includes a first rod body (6). Both of the two first rod bodies (6) are rotatably arranged on both sides of the bottom of the support rod (2). A second rod body (23) is rotatably connected to the first rod body (6). The top of the second rod body (23) passes through an opening formed inside the support rod (2) and is slidably connected to the support block (24).
3. The soaking device for leather modification based on chemical engineering process according to claim 2, characterized in that: On the bottom of both of the two first rod bodies (6), first wedge plates (18) slidably arranged inside the fixing frame (3) are rotatably connected. A second wedge plate (19) whose top end contacts one end of the first wedge plate (18) is slidably connected inside the fixing frame (3). A third wedge plate (20) that is telescopic is slidably connected inside the fixing frame (3). A third spring (21) for its reset is arranged inside the third wedge plate (20). 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 fixing frame (3). One end of the third wedge plate (20) contacts one end of the fourth wedge plate (22). The other end of the fourth wedge plate (22) contacts the clamping rod (10).
4. An immersion device for leather modification based on chemical process treatment according to claim 1, characterized in that: The lifting component (1) includes a hanging rail frame (111). The hanging rail frame (111) is slidably docked with an external track. A third telescopic member (112) capable of actively telescoping is fixedly connected to the bottom of the hanging rail frame (111). The bottom end of the third telescopic member (112) is rotatably connected to a rotating seat (113). A sleeve (114) is fixedly connected to the bottom of the rotating seat (113). A number of the fixing frames (3) are fixedly arranged on the sleeve (114) at equal intervals in a circular shape. A docking transmission component (5) for docking with the sleeve (114) is arranged inside the tanning barrel (4).
5. The soaking device for leather modification based on chemical process treatment according to claim 4, characterized in that: The docking drive 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 convex block (53) is slidably connected inside the docking shaft (51). A first spring (52) for resetting the convex block (53) is arranged inside the docking shaft (51). A slideway (54) is opened inside the docking shaft (51). A slider (57) is slidably connected to the bottom of the slideway (54). A traction steel cable (56) is jointly connected between the slider (57) and the convex block (53). A chute (115) for docking with the convex block (53) is opened inside the sleeve (114).
6. The soaking device for leather modification based on chemical engineering process according to claim 1, wherein: A reciprocating motor (14) is fixedly connected to a fixing plate (13) at the top end of the fixed frame (3). The output shaft of the reciprocating motor (14) is fixedly connected to a transmission rod (9). The transmission rod (9) at the top end of the fixed frame (3) and the transmission rod (9) at the bottom end are jointly connected by a transmission belt (8).
7. The soaking device for leather modification based on chemical engineering process 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.
8. An immersion device for leather modification based on chemical process treatment according to claim 6, characterized in that: One end of the fixed frame (3) is fixedly connected with a sliding seat. The transmission belt (8) passes through the sliding seat and is rotatably connected to the fixed frame (3).
9. An immersion device for leather modification based on chemical process treatment according to claim 1, characterized in that: A number of annularly distributed notches are formed on the surface of the docking roller (11) fixed on the transmission rod (9). A number of bosses corresponding to the notches are arranged on the surface of the docking roller (11) fixed on the clamping rod (10).
Citation Information
Patent Citations
Chemical impregnation process for antibacterial and bacteriostatic treatment of leather
CN120006049A