Plant leather tearing device

Abstract

The present invention discloses a plant leather material tearing device, which aims to solve the shortcomings of the current peeling and stripping process that relies on manual labor and is also performed separately in different processes. The invention includes a bite roller, a stripping plate attached to the bite roller, and a reversing plate. The stripping plate is a curved plate protruding toward the bite roller. A plurality of convex teeth are arranged on the end face of the bite roller near the outer edge. The stripping plate is provided with a plurality of protruding cutting edges and tearing material outlets arranged corresponding to the cutting edges. The number of stripping plates is at least two, and a gap is provided between adjacent stripping plates for the axial movement of plant branches. An entry port and an exit port are provided between the two sides of the stripping plate and the bite roller, and the reversing plate is located on the side of the stripping plate near the exit port. By setting up multiple groups of stripping plates, peeling and tearing are integrated. Under the premise that the power of the bite roller comes from the motor, only the operations of feeding and receiving waste materials need to be performed. The degree of automation is high and the labor burden is small.

Description

Technical Field

[0001] The present invention relates to the field of papermaking, and more particularly to a plant leather material tearing device. Background Art

[0002] Xuan paper production requires tree bark as the primary material, supplemented by grasses. Through multiple processes, it undergoes physical and chemical treatments. Among these, the bark of the euphorbia cerasifera tree is an excellent primary material. Its fibers are highly suitable for making Xuan paper.

[0003] The production of Xuan paper requires 28 steps and hundreds of operations, including making fur, making leather embryos, making burnt leather, and making burnt leather pulp, which takes more than 300 days.

[0004] To make fur, the branches of the Chinese cedarwood tree are cut, the limbs are removed, and the leaves are five to six feet long. These branches are then bundled, boiled, soaked in cold water for a day, peeled, and sun-dried into bundles. Existing peeling methods rely on manual labor, which is quite labor-intensive. Subsequent steps require the peeled skin to be torn into pieces. Therefore, there is an urgent need for a highly automated plant leather shredding device that can both peel and tear the skin. Summary of the Invention

[0005] The present invention overcomes the shortcomings of the existing peeling and stripping process that relies on manual labor and is performed separately in different processes, and provides a plant leather material shredding device that integrates peeling and stripping and has a high degree of automation.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A plant leather material shredding device includes a biting roller, a stripping plate attached to the biting roller, and a reversing plate. The stripping plate is a curved plate protruding toward the biting roller. A plurality of protruding teeth are arranged on the end face of the biting roller near the outer edge. The stripping plate is provided with a plurality of protruding cutting edges and tearing material discharge ports arranged corresponding to the cutting edges. There are at least two stripping plates. A gap is provided between adjacent stripping plates for axial movement of plant branches. An entry port and an exit port are provided on both sides of the stripping plate and between the biting roller. The reversing plate is located on the side of the stripping plate near the exit port.

[0008] This device drives the plant branches, especially the Chinese sumac, to move through the interlocking rollers. The Chinese sumac moves relative to the stripping plate. During the movement, the blade of the stripping plate peels the Chinese sumac. The peeled Chinese sumac bark leaves from the tearing outlet. By setting up multiple groups of stripping plates, several strips are peeled off in sequence to produce finer fiber filaments. Through the above structure, barking and peeling are integrated and performed in the same process, which has a higher level of automation than manual operation. The reversing plate is used to realize the automatic reversing function. When the plant branch leaves from one exit, its end abuts against the reversing plate, and the other end is driven by the engagement of the convex teeth to rotate with a point close to the end as the center of the circle, thereby automatically entering the entrance of the next stripping wave, further improving the automation.

[0009] Preferably, the cutting edge is a beveled blade, which guides the plant stem to rotate relative to the stripping board. Compared to a flat blade, this technology can cause the plant stem to rotate while stripping. After leaving the stripping board, the direction can be changed and the stem can be transferred to another stripping board without manual adjustment. By continuously operating multiple stripping boards, the entire outer edge of the plant stem can be stripped.

[0010] Preferably, the rotation angle of the plant trunk under the action of the oblique blade is 2π / N, and the number of the peeling plates is N.

[0011] Preferably, the reversing roller is elastically connected to the frame of the shredding device along the tangential direction of the nip roller. The elastic setting of the reversing plate adapts to plant branches of different lengths and has greater versatility.

[0012] Preferably, the machine further comprises a frame, the frame being provided with guide rods which are inserted into positions on both sides of the stripping plate, and elastic members which are mounted on the guide rods, the ends of which respectively abut the stripping plate and the frame. This structure allows the radial distance between the stripping plate and the nip roller to be adjustable, thereby accommodating plant branches of slightly different thicknesses.

[0013] Preferably, along the extending direction of the protrusion, a plurality of arc-shaped grooves are provided on one side of the protrusion near the outer edge, wherein the diameter of the arc-shaped grooves is larger than the maximum diameter of the plant branches. The above structure allows multiple plant branches to be processed in parallel, thereby improving the processing efficiency.

[0014] Preferably, a material collector for receiving the torn material is provided on the side of the peeling plate away from the nip roller.

[0015] Preferably, the center shaft of the bite roller is connected to a power structure.

[0016] Preferably, the power structure is an electric motor.

[0017] Compared with the prior art, the present invention has the following advantages: (1) the present invention integrates peeling and tearing by setting up multiple sets of peeling plates; (2) under the premise that the power of the interlocking roller comes from the motor, only the operations of feeding and receiving waste materials need to be performed, with a high degree of automation and a small labor burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the movable connection of the stripping plate of the present invention;

[0020] Figure 3 This is a schematic diagram of the movement and connection of plant branches between two stripping plates of the present invention;

[0021] In the picture:

[0022] The biting roller 1, the convex teeth 2, the stripping plate 3, the cutting edge 4, the entrance 5, the exit 6, the reversing plate 7, the first elastic member 8, the second elastic member 9, the tensioning plate 10, the guide rod 11, the collector 12, and the plant branches 13. DETAILED DESCRIPTION

[0023] The present disclosure will be further described below with reference to the accompanying drawings and embodiments.

[0024] In this disclosure, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Relevant researchers or technicians in this field may determine the specific meaning of these terms in this disclosure based on specific circumstances, and they should not be construed as limiting this disclosure.

[0025] Example:

[0026] A plant leather material tearing device, such as Figure 1 As shown, the stripping plate 3 comprises a nip roller 1 and a stripping plate 3 attached to the nip roller 1. The stripping plate 3 is a curved plate protruding toward the nip roller 1. Along the axial direction of the nip roller 1, the cross-section of the stripping plate 3 near the nip roller 1 is curved, and the curved edge is arc-shaped. In some embodiments, the nip roller 1 is disc-shaped and relatively short. Several protruding teeth 2 are arranged on the end face of the nip roller 1 near the outer edge. In some embodiments, the protruding teeth 2 are evenly distributed on the end face of the nip roller 1. In another embodiment, the protruding teeth 2 are more densely distributed near the outer edge of the end face of the nip roller 1 toward the center. The protruding teeth 2 are rods of equal thickness at the top and bottom. The distal ends of the protruding teeth 2 are fixedly connected to one end face of the nip roller 1 by a fixed connection, including but not limited to fasteners or adhesive bonding. The axis of the protruding teeth 2 is parallel to the axis of the nip roller 1. The stripping plate 3 is provided with several protruding cutting edges 4 and a tearing material discharge port corresponding to the cutting edges 4. In some embodiments, the stripping plate 3 is an integrated structure, and a tearing outlet is formed to guide the tearing material out at the same time as the cutting edge 4. There are at least two stripping plates 3, and a gap is provided between adjacent stripping plates 3 to allow the plant branches to move axially.

[0027] In some embodiments, in order to further increase the friction between the protruding teeth 2 and the plant branches, the surface of the protruding teeth 2 has a friction layer.

[0028] The stripping plate 3 further includes a reversing plate 7. An entry port 5 and an exit port 6 are provided between the two sides of the stripping plate 3 and the nip roller 1. The reversing plate 7 is located on the side of the stripping plate 3 near the exit port 6. In some embodiments, the reversing plate 7 has upwardly turned flanges on both sides. In other embodiments, the reversing plate 7 is an arc-shaped plate with both ends bent toward the nip roller 1. In some preferred embodiments, the reversing plate 7 is elastically connected to the frame of the wire tearing device along the tangential direction of the nip roller 1. Specifically, the reversing plate 7 is elastically connected to the frame via a first elastic member 8. The first elastic member 8 includes but is not limited to a cylindrical spring, an elastic block, etc.

[0029] The cutting edge 4 is a beveled blade that guides the plant stem to rotate relative to the stripping plates 3. The angle of rotation achieved by the beveled blade is related to the number of stripping plates 3. Specifically, the angle of rotation of the plant stem under the action of the beveled blade is 2π / N, where the number of stripping plates 3 is N. In some preferred embodiments, the plant stem rotates 120 degrees after passing through a stripping plate 3, requiring three stripping plates 3. In this case, the final feed inlet and the main discharge outlet are located on the same side of the device.

[0030] like Figure 2 As shown, in some embodiments, the distance between the stripping plate 3 and the nip roller 1 is adjustable. Specifically, the stripping plate 3 is movably connected to the nip roller 1. A guide rod 11 is provided on the frame, and the guide rod 11 is inserted at the two sides of the stripping plate 3. The guide rod 11 is provided with a second elastic member 9, and the two ends of the second elastic member 9 abut the stripping plate 3 and the frame respectively. The second elastic member 9 makes the plant branches always fit tightly between the stripping plate 3 and the nip roller 1. In some embodiments, there is also a tensioning structure for adjusting the elastic force of the second elastic member 9. Specifically, a tensioning plate 10 is threadedly connected to the guide rod 11, and the second elastic member 9 abuts between the tensioning plate 10 and the stripping plate 3. By adjusting the position of the tensioning plate 10 on the guide rod 11, the elastic force can be adjusted.

[0031] In some embodiments, along the extension direction of the protrusion, a plurality of arc-shaped grooves are provided on one side of the protrusion near the outer edge, wherein the diameter of the arc-shaped grooves is larger than the maximum diameter of the plant branch. In some embodiments, a friction layer is provided in the groove for increasing the friction between the protruding teeth 2 and the plant branch.

[0032] A material collector 12 for receiving the torn material is provided on the side of the peeling plate 3 away from the nip roller 1 .

[0033] The central shaft of the nip roller 1 is connected to a power structure which is a motor.

[0034] The method of using the plant leather material tearing device is as follows, taking the embodiment with three peeling plates 3 as an example:

[0035] like Figure 3As shown, the plant branch is first deforked and cut into equal lengths. It is then inserted tangentially along the intermeshing roller 1 into the entry opening 5 formed between the intermeshing roller 1 and the stripping plate 3. Driven by the convex teeth 2, the plant branch is engaged and forced between the stripping plate 3 and the side of the intermeshing roller 1. The cutting edge 4 remains stationary along the stripping plate 3, with corresponding second elastic members 9 maintaining pressure on the plant branch. During this process, the cutting edge 4 peels the bark from the plant branch, partially removing it into strips that are then discharged from the stripping plate 3 through the corresponding tearing outlet. During this process, the shape of the cutting edge 4 creates an unbalanced force on the circumferential direction of the plant branch, causing the branch to rotate. This also results in a spiral shape in the resulting fiber strands. This shape better resists bending during subsequent transportation and storage, maintaining integrity. Furthermore, in subsequent chemical reactions, the connecting components between adjacent fibers break apart, producing shorter fibers that are less difficult to cut and pulverize. As described above, the plant branch rotates while moving tangentially from the nip roller 1, away from the first stripping plate 3. The end of the branch that first enters (hereinafter referred to as the bottom end) abuts against the reversing plate 7. The other end of the branch is freed from the pressure of the corresponding tooth 2. As the nip roller 1 rotates, the corresponding tooth 2 moves away from the plant branch. Freed from pressure, the branch swings toward the nip roller 1 under the action of its own elasticity and the second elastic member 9, then enters the interference range of another tooth 2 on the nip roller 1. In some embodiments, the distance from this tooth 2 to the center of the nip roller 1 is the same as the distance from the tooth 2 that previously positioned the plant branch to the center of the nip roller 1. This tooth 2 causes the plant branch to swing about a point near its end until it abuts the second stripping plate 3. Engaged by the corresponding tooth 2, the plant branch enters tangentially from the nip roller 1, similar to the previous stripping plate 3, and is stripped by the cutting edge 4, undergoing a rotational and axial movement. This is repeated three times, and the particles pass through all the stripping plates 3 in sequence. The particles then leave the stripping plate 3 at the most downstream end and are collected.

[0036] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A plant leather tearing device, characterized in that: The stripping plate comprises a nip roller, a reversing plate and a stripping plate attached to the nip roller. The central shaft of the nip roller is connected to a power structure. The stripping plate is a curved plate protruding toward the nip roller. A plurality of convex teeth are arranged on the end face of the nip roller near the outer edge. The stripping plate is provided with a plurality of protruding cutting edges and tearing and discharging ports corresponding to the cutting edges. The number of the stripping plates is at least two. A gap for axial movement of plant branches is provided between adjacent stripping plates. An entry port and an exit port are provided between the two sides of the stripping plate and the nip roller. The reversing plate is located on the side of the stripping plate near the exit port. The cutting edge is an oblique blade, which guides the plant branches to rotate relative to the stripping plate. The rotation angle of the plant branches under the action of the oblique blade is 2π / N, and the number of stripping plates is N; The invention also comprises a frame, wherein the reversing plate is elastically connected to the frame of the wire tearing device along the tangential direction of the nip roller; The frame is provided with guide rods, which are inserted at both sides of the stripping plate. The guide rods are sleeved with a second elastic member, and the two ends of the second elastic member respectively abut against the stripping plate and the frame; First, the plant branches are debranched and cut into equal lengths, and then they are put into the entrance opening formed by the gap between the nip roller and the stripping plate along the tangential direction of the nip roller. Driven by the convex teeth, the plant branches are bitten into and enter between the stripping plate and the side of the nip roller; the cutting edge remains stationary with the stripping plate, and the pressure on the plant branches is maintained by the corresponding second elastic member. In this process, the cutting edge peels off the leather of the plant branches, peeling off part of the leather into strips, and then discharges it from the stripping plate through the corresponding tearing outlet; the plant branches rotate while leaving the first stripping plate along the tangential direction of the nip roller, and the end that first extends in abuts against the reversing plate, and the other end breaks away from the convex teeth. The plant branches swing toward the nip roller due to their own elasticity and driven by the second elastic member, and reach the interference range of another convex tooth on the nip roller. The other convex tooth drives the plant branches to swing with a point close to the bottom end of the plant branches as the center until it abuts against the next stripping plate, and repeats the action of rotating and moving axially.

2. A plant leather tearing device according to claim 1, characterized in that: Along the extending direction of the convex teeth, a plurality of arc-shaped grooves are provided on one side of the convex teeth close to the outer edge of the bite roller, and the diameter of the arc-shaped grooves is larger than the maximum diameter of the plant branches.

3. A plant leather shredding device according to any one of claims 1 to 2, characterized in that: A material collector for receiving the torn materials is provided on one side of the stripping plate away from the nip roller.

4. The plant leather tearing device according to claim 3, characterized in that: The power structure is an electric motor.

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