Wear-resistant skin mechanism of longitudinal bar wire feeding mechanism

By introducing a wear-resistant skin mechanism into the longitudinal rib feeding mechanism, the problem of frequent replacement caused by concentrated wear of the conveyor wheel was solved, achieving uniform wear of the conveyor wheel and extending its service life, thereby improving construction efficiency and equipment economy.

CN223560521UActive Publication Date: 2025-11-18HANCHENG HANDA XINXING INTELLIGENT MFG CO LTD
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Patent Information

Application Number
CN202422896282.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-11-18
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Traditional longitudinal rib feeding mechanisms suffer from concentrated wear on a single point in their conveyor wheels, leading to frequent replacements, high costs, and short service life, which negatively impacts construction efficiency and costs.

Method used

The wear-resistant skin mechanism is adopted, including a skin ring and a positioning component that are slidably connected to the outer wall of the conveyor wheel. The locking component enables the skin ring to be quickly positioned and its position adjusted, ensuring uniform wear and extending the service life of the conveyor wheel.

Benefits of technology

This improved the service life and wear resistance of the conveyor wheels, reduced the frequency of replacement and maintenance costs, and ensured continuous and efficient construction operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of longitudinal bar wire feeding, and discloses a wear-resistant skin mechanism of a longitudinal bar wire feeding mechanism, which comprises a conveying wheel, the outer wall of the conveying wheel is connected with a plurality of skin rings in a sliding manner, a middle shaft is fixedly connected in the conveying wheel, and the fixing rings are distributed at two ends of the conveying wheel in a bilateral symmetry manner. The inner wall of the fixing ring is slidably connected to the outer wall of the conveying wheel, a plurality of positioning holes are formed in the two ends of the conveying wheel, first grooves are formed in the inner walls of the positioning holes, and a locking assembly is arranged on the inner wall of the fixing ring and used for limiting the position of the fixing ring. According to the conveying wheel, the positioning blocks and the positioning grooves on the two skin rings are aligned and folded by a worker, so that the buckles of the skin rings are clamped into the clamping grooves corresponding to the skin rings, the outer wall of the conveying wheel is directly sleeved with the skin rings to be used after the skin rings are installed, the problems that a traditional conveying wheel is high in replacement cost and short in service life are solved, and the service life of the conveying wheel is prolonged; and the overall protection and wear resistance are enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to longitudinal reinforcement wire feeding technology field especially relates to longitudinal reinforcement wire feeding mechanism's wear -resisting skin mechanism. BACKGROUND

[0002] In the modern concrete construction field, longitudinal reinforcement wire feeding mechanism is the key equipment to guarantee the efficient and accurate conveying of steel bars. With the vigorous development of the building industry towards high-rise and large-scale, the construction intensity increases day by day. The cold-rolled ribbed steel bars used in construction have the characteristics of ribs, which will produce huge friction loss with the conveying wheel during the conveying process, resulting in low service life of the conveying wheel. Therefore, developing a longitudinal reinforcement wire feeding mechanism with a wear-resistant skin mechanism can effectively improve this situation. At the same time, this mechanism also needs to have long-term durability, reduce equipment maintenance frequency, and meet the urgent needs of efficient and continuous operation of construction.

[0003] The traditional conveying wheel is made of carbon steel pipe + shaft + bearing and bearing seat welding. The horizontal spacing of the cold-rolled ribbed steel bars used in the concrete construction field in China is basically 100mm wide. This feature causes the longitudinal reinforcement position to always be at one point during production, so the wear of each longitudinal reinforcement on the conveying wheel is always concentrated at one point. When the wear is serious, it can only be replaced at one time. This problem leads to high equipment cost and short service life.

[0004] The most prominent problem of the traditional longitudinal reinforcement wire feeding mechanism is the high replacement cost and short service life of the conveying wheel. Since the traditional conveying wheel does not use a skin mechanism, the conveying wheel needs to face the scraping and impact of the steel bars, causing scratches and depressions on its surface, damaging the mechanical properties. Frequent steel conveying operations quickly wear out the conveying wheel and lose its protective effectiveness. When such damage occurs each time, the structure is damaged, and the entire conveying wheel needs to be replaced. This not only means high procurement costs, but also requires the construction to be temporarily suspended during the replacement process, delaying the construction period, greatly increasing the construction cost, and slowing down the project progress. Therefore, the wear-resistant skin mechanism for longitudinal reinforcement wire feeding mechanism is proposed to solve the above problems. SUMMARY

[0005] To make up for the above shortcomings, the utility model provides a wear-resistant skin mechanism for longitudinal reinforcement wire feeding mechanism, which aims to improve the problem of high replacement cost and short service life of the conveying wheel in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The wear-resistant skin mechanism of the longitudinal rib wire feeding mechanism comprises a conveying wheel, a plurality of skin rings are slidably connected to the outer wall of the conveying wheel, a connecting assembly is arranged between the skin rings, the connecting assembly is used for connecting the skin rings together, a middle shaft is fixedly connected inside the conveying wheel, positioning assemblies are arranged at both ends of the conveying wheel, the positioning assemblies are located on both sides of the skin rings, and the positioning assemblies are used for positioning or limiting the position of the skin ring;

[0008] The positioning assembly comprises a plurality of fixed rings which are symmetrically distributed at both ends of the conveying wheel, the inner wall of the fixed ring is slidably connected to the outer wall of the conveying wheel, a plurality of positioning holes are formed at both ends of the conveying wheel, a groove one is formed in the inner wall of the positioning hole, a locking assembly is arranged on the inner wall of the fixed ring, and the locking assembly is used for limiting the position of the fixed ring.

[0009] As a further description of the above technical scheme:

[0010] The locking assembly comprises a locking outer column, the locking outer column is slidably connected to the inside of the fixed ring, a connecting rod is slidably connected to the inside of the locking outer column, a plurality of balls are slidably connected to the inside of the locking outer column, and the balls are circumferentially distributed in the inside of the locking outer column.

[0011] As a further description of the above technical scheme:

[0012] The connecting rod is fixedly connected with a button at the top, a limiting spring 9 is arranged on the outer wall of the connecting rod, one end of the limiting spring is fixedly connected to the bottom of the button, and the other end of the limiting spring is fixedly connected to the inner wall of the locking outer column.

[0013] As a further description of the above technical scheme:

[0014] The bottom of the connecting rod 8 is fixedly connected with a locking inner column, and a groove two is formed in the bottom of the locking inner column.

[0015] As a further description of the above technical scheme:

[0016] The connecting assembly comprises a plurality of positioning blocks, the positioning blocks are fixedly connected to the outer wall of one end of the skin ring, and the positioning blocks are circumferentially distributed on the outer wall of the skin ring.

[0017] As a further description of the above technical scheme:

[0018] A plurality of positioning grooves are formed in the outer wall of the other side of the skin ring, the positioning grooves are circumferentially distributed on the outer wall of the skin ring, and the positioning blocks and the positioning grooves are positionally symmetrical.

[0019] As a further description of the above technical scheme:

[0020] The plurality of buckles are fixedly connected to the side wall of the skin ring, and one end of each buckle is provided with an unlocking slot.

[0021] As a further description of the above technical solution:

[0022] The other end of the skin ring is provided with a plurality of clamping grooves, which are circumferentially distributed on the outer wall of the one end of the skin ring, and the buckle and the clamping groove are symmetrically arranged.

[0023] The utility model has the advantages of:

[0024] 1、the utility model discloses a positioning block and positioning slot are aligned and are folded between two skin rings to the staff first, the front end wedge of one end buckle of one side skin ring can be clamped into the recess of corresponding one end clamping groove of the other side skin ring at this time, and the installation is installed in this way, and after being installed, it can be used directly to be sleeved on the outer wall of the conveying wheel, the problem of high replacement cost and short service life of the traditional conveying wheel is solved, the service life of the conveying wheel is improved, and the overall protection and wear resistance are enhanced.

[0025] 2、the utility model discloses that the staff presses the button, makes the limit spring be pressed, and pushes the locking inner column to move down, and the ball is returned to the inner wall of recess two, and the locking outer column is released after being in place, and the limit spring is rebounded to drive the connecting rod and the locking inner column to move up, and the ball slides out of recess two, and is extruded into the recess one at the bottom of the positioning hole by the locking inner column, the skin mechanism is fixed, quick positioning and position adjustment are realized, the problem that the wear of the traditional conveying wheel is always concentrated on one point and the whole conveying wheel can only be replaced when the wear is serious is solved, the efficiency of skin position adjustment is improved, the skin realizes uniform wear, and the use rate of wear-resistant skin and the conveying wheel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic view of the wear-resistant skin mechanism of the longitudinal reinforcement wire feeding mechanism of the utility model;

[0027] Figure 2 It is a structural schematic view of the fixing ring of the wear-resistant skin mechanism of the longitudinal reinforcement wire feeding mechanism of the utility model;

[0028] Figure 3 It is Figure 2 It is an enlarged view of position A in the figure;

[0029] Figure 4 It is a structural schematic view of the skin ring of the wear-resistant skin mechanism of the longitudinal reinforcement wire feeding mechanism of the utility model;

[0030] Figure 5 It is Figure 4 It is an enlarged view of position B in the figure.

[0031] LEGEND:

[0032] 1. Conveyor wheel; 2. Central axis; 3. Skin ring; 4. Fixed ring; 5. Positioning hole; 6. First groove; 7. Locking outer column; 8. Connecting rod; 9. Limiting spring; 10. Locking inner column; 11. Second groove; 12. Ball; 13. Button; 14. Positioning block; 15. Positioning groove; 16. Buckle; 17. Unlocking groove; 18. Card slot. Detailed implementation manner <>

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Refer to Figure 1 - Figure 3The utility model provides a kind of embodiment: the wear-resistant skin mechanism of longitudinal rib wire feeding mechanism, including conveying wheel 1, conveying wheel 1 is as the power receiving component of driving skin ring 3 operation, realizes the power of longitudinal rib wire feeding, its material is cast iron, with sufficient quality and strength, to maintain the stability and durability when high-speed operation, the outer wall of conveying wheel 1 is slidably connected with multiple skin rings 3, skin ring 3 is as wear-resistant component directly contacted with material, bears friction, high-alloy wear-resistant precision tube is adopted, its shape is designed as circular ring, length is 100mm, thickness is 1.0mm, the inner diameter of which matches the outer diameter size of the conveying wheel 1 and has mirror surface level finish, thereby reducing the friction with the material and thus reducing wear, having excellent economy and practicability, the skin ring 3 is provided with a connecting assembly for connecting multiple skin rings 3 together, the inner part of the conveying wheel 1 is fixedly connected with a middle shaft 2, the material of the middle shaft 2 is high-quality alloy steel, which is finely processed and heat treated, having high strength and high toughness, and being able to stably bear the torque and radial force during the operation of the conveying wheel 1, the two ends of the conveying wheel 1 are provided with positioning assemblies, which are located on the two sides of the skin ring 3, and are used for positioning or limiting the position of the skin ring 3; the positioning assembly comprises a plurality of fixed rings 4, which are support components for positioning the skin ring 3 and assisting the docking of the entire skin mechanism with the conveying wheel 1, and are in the shape of a circular ring, when installing the two skin rings 3, the skin ring 3 is fixed on the fixed ring 4 through the connecting mode of the clamping block, ensuring that the relative position between them is constant, laying a foundation for the subsequent assembly with the conveying wheel 1, the fixed ring 4 is distributed in a left-right symmetrical manner at the two ends of the conveying wheel 1, and is slidably connected to the inner wall of the conveying wheel 1, a plurality of positioning holes 5 are formed at the two ends of the conveying wheel 1, 10 at each end, and the interval is 10mm, so that the position of the skin ring 3 can be adjusted left and right, so that the entire skin can be uniformly worn, the wear-resistant skin usage rate is improved by 10 times, a groove one 6 is formed in the inner wall of the positioning hole 5, which is used for subsequent cooperation with the ball 12 to lock the position of the fixed ring 4, a locking assembly is arranged on the inner wall of the fixed ring 4, which is used for limiting the position of the fixed ring 4, the locking assembly comprises a locking outer column 7, which is the shell and operation main body of the locking assembly, and is made of stainless steel and is in the shape of a circular column, the outer diameter of the bottom part is matched with the diameter of the positioning hole 5, the locking outer column 7 is slidably connected inside the fixed ring 4, a connecting rod 8 is slidably connected inside the locking outer column 7, a plurality of balls 12 are slidably connected inside the locking outer column 7, the balls 12 are rolling components for locking and unlocking, the balls 12 are distributed in a circumferential manner inside the locking outer column 7, a button 13 is fixedly connected to the top of the connecting rod 8, the button 13 is a manual control component for triggering the locking and unlocking action, and is designed in the shape of a circular protrusion, a limiting spring 9 is sleeved on the outer wall of the connecting rod 8, the limiting spring 9 is an elastic element for providing elastic return force and controlling the up-down movement of the locking inner column 10, one end of the limiting spring 9 is fixedly connected to the bottom of the button 13, the other end of the limiting spring 9 is fixedly connected to the inner wall of the locking outer column 7, a locking inner column 10 is fixedly connected to the bottom of the connecting rod 8, the material of the locking inner column 10 is the same as that of the locking outer column 7, which is stainless steel, and the shape is also a circular column, the diameter is slightly smaller than the inner diameter of the locking outer column 7, so as to smoothly slide inside the locking outer column 7, a groove two 11 is formed at the bottom of the locking inner column 10, which is used for accommodating the balls 12, and the size is matched with that of the balls 12.

[0035] Specifically, first, the two outermost skin rings 3 are fixedly installed on one side of the fixed ring 4, then the conveying wheel 1 is placed inside the entire skin assembly, at this time, the worker aligns the hole position of the fixed ring 4 with the positioning hole 5 on both sides of the conveying wheel 1, and then places the locking outer column 7 into the hole position, at this time, the button 13 is manually pressed down, the displacement of the button 13 downward causes the limiting spring 9 to push the locking inner column 10 to displace downward, and at the same time, the limiting spring 9 is compressed under stress, with the downward displacement of the locking inner column 10, the ball 12 loses the extrusion from the outer wall of the locking inner column 10, and thus slides back into the inner wall of the groove two 11, during the up-down movement of the locking inner column 10, the ball 12 can roll flexibly inside the locking outer column 7, and the working position is switched, after the locking outer column 7 is placed in position, the worker releases the pressed button 13, the limiting spring 9 inside the locking outer column 7 loses the pressure from above, thus restoring and pushing the button 13 to displace upward, the displacement of the button 13 causes the connecting rod 8 to drive the locking inner column 10 to displace upward, the upward displacement of the locking inner column 10 causes the ball 12 to slide out of the inside of the groove two 11, and under the extrusion of the outer wall of the locking inner column 10, the ball 12 enters the groove one 6 at the bottom of the positioning hole 5, the rolling direction of the ball 12 is from the groove two 11 to the groove one 6, thus completing the fixation of the entire skin mechanism, and achieving the effect of quickly installing and adjusting the position of the skin mechanism, the entire process is convenient to operate and accurate in positioning, which can not only efficiently complete the assembly of the skin mechanism, but also flexibly adjust the position of the skin ring 3 left and right as needed in subsequent use, so that the entire skin ring 3 is uniformly worn, and the use rate of the wear-resistant skin mechanism is improved.

[0036] With reference to Figure 4 and Figure 5The connecting assembly comprises a plurality of positioning blocks 14, which are positioning structures for butt joint of the skin ring 3, guaranteeing the overall coherence and synergy. The positioning blocks 14 are cuboid blocks with a height close to the wall thickness, so as to precisely fit the positioning grooves 15. The positioning blocks 14 are fixedly connected to the outer wall of one end of the skin ring 3 and are circumferentially distributed on the outer wall of the skin ring 3. The interval angle between adjacent positioning blocks 14 is 90°, ensuring uniform force and stable positioning during butt joint. A plurality of positioning grooves 15 are formed in the outer wall of the other end of the skin ring 3. The positioning grooves 15 are cuboid recesses matched with the positioning blocks 14 and are circumferentially distributed on the outer wall of the skin ring 3. The positioning blocks 14 and the positioning grooves 15 are symmetrically arranged. A plurality of buckles 16 are fixedly connected to the side wall of the skin ring 3. The buckles 16 are locking components for connecting and fastening the skin ring 3. The overall shape of the buckle 16 is similar to a small "L" shaped structure. One end is a flat strip-shaped handle, and the other end is a wedge-shaped front block, so as to smoothly slide into the clamping groove 18 when the skin ring 3 is folded and to form a stable self-locking effect after embedding. An unlocking groove 17 is formed in one end of the buckle 16. The unlocking groove 17 is a narrow and long recess, which is convenient for tools to be inserted for unlocking operation. The buckles 16 are circumferentially distributed on the outer wall of one end of the skin ring 3. A plurality of clamping grooves 18 are formed in the outer wall of the other end of the skin ring 3. The clamping grooves 18 are recesses matched with the wedge-shaped front block of the buckle 16. The clamping grooves 18 are circumferentially distributed on the outer wall of one end of the skin ring 3. The buckle 16 and the clamping groove 18 are symmetrically arranged.

[0037] Specifically, the workers start to combine the required skin rings 3 together. First, the workers need to align the positioning blocks 14 between the two skin rings 3 with the positioning grooves 15. In this process, the positioning blocks 14 are inserted along the axial direction of the positioning grooves 15 until they completely fit, ensuring that the centers of the two skin rings 3 are on the same straight line, laying the foundation for subsequent stable connection. After alignment, the two skin rings 3 are folded together. At this time, the wedge-shaped block at the front end of the buckle 16 on one end of one skin ring 3 will be clamped into the groove of the corresponding buckle slot 18 on the other end of the other skin ring 3. When folding, the wedge-shaped front end block of the buckle 16 slides into the groove of the buckle slot 18 under the action of slight extrusion force along the axial direction of the buckle slot 18. With the continuation of the folding action, the buckle 16 will be tightly clamped under the cooperation of its own elasticity and the structure of the buckle slot 18, making a crisp "click" sound, indicating that the connection is in place. Multiple skin rings 3 are combined and installed in this way in sequence to achieve the effect of quickly installing skin rings 3, improving installation efficiency and convenience. However, after the equipment has been running for a period of time, when the skin rings 3 need to be replaced and separated due to severe wear and tear, the workers first select a flat pry bar tool, slowly insert the pry bar along the axial direction of the unlocking groove 17, and then pry the pry bar around the unlocking groove 17, making the buckle 16 rotate around the connection point with the skin ring 3 until the wedge-shaped front end block of the buckle 16 completely separates from the groove of the buckle slot 18. At this time, the two skin rings 3 can be easily separated, facilitating subsequent replacement and maintenance work and ensuring the continuous and efficient operation of the longitudinal rib wire feeding mechanism.

[0038] Working principle: when installing the wear-resistant skin mechanism, the workers combine the required installed skin rings 3 together, first align the positioning blocks 14 between the two skin rings 3 with the positioning grooves 15, and then fold the two skin rings 3 after alignment, at this time the front wedge block of the buckle 16 at one end of one skin ring 3 will be clamped into the groove of the clamping groove 18 at the other end of the corresponding skin ring 3, and a plurality of skin rings 3 are combined and installed in this way, so as to achieve the effect of quickly installing the skin ring 3, when the skin ring 3 needs to be replaced and separated, the workers can use tools to insert into the unlocking groove 17 and pry the buckle 16 to make it separate from the groove of the clamping groove 18, so as to separate the two skin rings 3, when the skin ring 3 is combined and installed fixedly, the two outermost skin rings 3 are fixedly installed on one side of the fixed ring 4, and the conveying wheel 1 is sleeved into the inside of the whole skin assembly, at this time, the workers align the hole position of the fixed ring 4 with the positioning hole 5 on both sides of the conveying wheel 1, and then put the locking outer column 7 into the hole position, at this time, manually press the button 13, with the downward displacement of the button 13, the limiting spring 9 pushes the locking inner column 10 to displace downward, and at the same time, the limiting spring 9 is compressed under stress, with the downward displacement of the locking inner column 10, the ball 12 loses the extrusion from the outer wall of the locking inner column 10, so as to slide back to the inner wall of the groove two 11, when the locking outer column 7 is placed in position, the workers release the pressed button 13, the limiting spring 9 in the locking outer column 7 loses the pressure from above, so as to restore and push the button 13 to displace upward, the displacement of the button 13 drives the connecting rod 8 to drive the locking inner column 10 to displace upward, so that the ball 12 slides away from the inside of the groove two 11, and enters the groove one 6 at the bottom of the positioning hole 5 under the extrusion of the outer wall of the locking inner column 10, so as to complete the fixation of the whole skin mechanism, so as to realize the effect of quickly installing and adjusting the position of the skin mechanism.

[0039] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A wear-resistant skin mechanism for a longitudinal rib feeding mechanism, comprising a conveying wheel (1), characterized in that: The outer wall of the conveying wheel (1) is slidably connected with multiple skin rings (3), and a connecting component is provided between the skin rings (3). The connecting component is used to connect the multiple skin rings (3) together. The conveying wheel (1) is fixedly connected with a central shaft (2). The two ends of the conveying wheel (1) are provided with positioning components. The positioning components are located on both sides of the skin rings (3). The positioning components are used to position or limit the position of the adjusting skin rings (3). The positioning component includes multiple fixing rings (4), which are symmetrically distributed at both ends of the conveying wheel (1). The inner wall of the fixing ring (4) is slidably connected to the outer wall of the conveying wheel (1). Multiple positioning holes (5) are provided at both ends of the conveying wheel (1). A groove (6) is provided on the inner wall of the positioning hole (5). A locking component is provided on the inner wall of the fixing ring (4). The locking component is used to limit the position of the fixing ring (4).

2. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 1, characterized in that: The locking assembly includes a locking outer post (7), which is slidably connected inside the fixing ring (4). A connecting rod (8) is slidably connected inside the locking outer post (7), and a plurality of balls (12) are slidably connected inside the locking outer post (7). The balls (12) are distributed in a circumferential shape inside the locking outer post (7).

3. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 2, characterized in that: A button (13) is fixedly connected to the top of the connecting rod (8), and a limiting spring (9) is sleeved on the outer wall of the connecting rod (8). One end of the limiting spring (9) is fixedly connected to the bottom of the button (13), and the other end of the limiting spring (9) is fixedly connected to the inner wall of the locking outer column (7).

4. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 3, characterized in that: The bottom of the connecting rod (8) is fixedly connected to a locking inner post (10), and the bottom of the locking inner post (10) is provided with a groove (11).

5. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 1, characterized in that: The connecting assembly includes multiple positioning blocks (14), which are fixedly connected to the outer wall of one end of the skin ring (3) and are distributed in a circumferential shape on the outer wall of the skin ring (3).

6. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 5, characterized in that: The outer wall of the skin ring (3) on the other side is provided with a plurality of positioning grooves (15), which are distributed in a circular shape on the outer wall of the skin ring (3), and the positioning block (14) is symmetrical to the positioning groove (15).

7. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 6, characterized in that: The skin ring (3) has multiple buckles (16) fixedly connected to its side wall. One end of each buckle (16) has an unlocking groove (17). The buckles (16) are distributed in a circumferential shape on the outer wall of one end of the skin ring (3).

8. The wear-resistant skin mechanism of the longitudinal rib feeding mechanism according to claim 7, characterized in that: The outer wall of the other end of the skin ring (3) is provided with a plurality of slots (18), which are distributed in a circumferential shape on the outer wall of one end of the skin ring (3), and the buckle (16) is symmetrical to the slot (18).