Detachable roller of titanium bar peeler

The design of the detachable roller structure and adjustment components solves the problem of difficult roller adjustment in traditional titanium bar peeling machines, enabling flexible adjustment and easy replacement, improving the adaptability and stability of the equipment, and reducing costs.

CN223700160UActive Publication Date: 2025-12-23BAOJI RUITILONG TITANIUM IND CO LTD
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Patent Information

Application Number
CN202520035783.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-12-23
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Traditional titanium bar peeling machines have fixed roller designs that are difficult to adjust, resulting in poor peeling effects, poor equipment adaptability, and cumbersome roller replacement and maintenance operations, which increase costs.

Method used

Design a detachable roller structure that allows for fine adjustment of the roller spacing through an adjustment component. Simple fixing is achieved using shims, fixing discs, and fixing nuts, while abutment blocks and springs ensure belt tension, facilitating the cleaning and replacement of the rollers.

Benefits of technology

It improves the flexibility and adaptability of the equipment, reduces production and maintenance costs, enhances the stability and reliability of the equipment, and optimizes peeling efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of peelers, particularly relates to a detachable roller of a titanium bar peeler, and aims to solve the problems that most of the conventional peeler rollers adopt fixed design, the roller replacement is difficult, the equipment maintenance cost is high, the adaptability is poor and the like. The titanium bar peeler comprises a peeler main body, two mounting cavities are formed in one side of the peeler main body, peeler driving shafts are rotationally arranged in the two mounting cavities, and the two peeler driving shafts are driven by corresponding motors in the peeler main body. The device can adapt to titanium bars with different specifications and requirements; the rollers are simply fixed through gaskets, fixing discs and fixing nuts, and cleaning, inspection and replacement are convenient; in addition, the matching of the abutting block, the abutting plate and the spring ensures that the belt is properly tightened, damage or poor transmission is avoided, and the stability and reliability of equipment are enhanced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a skinning machine technical field especially relates to a titanium bar skinning machine detachable roller. BACKGROUND

[0002] Titanium bar skinning machine is one of the commonly used equipment in metal processing industry, is used to remove the oxide skin, dirt and other impurities on the surface of titanium bar, to improve the surface quality and subsequent processing efficiency of titanium bar. However, the existing skinning machine in use, there are still the following problems:

[0003] Traditional titanium bar skinning machine usually adopts fixed roller, it is difficult to adjust flexibly according to the specification of titanium bar and skinning demand, leading to poor skinning effect or poor equipment adaptability, in addition, the roller replacement and maintenance operation of traditional skinning machine is complicated, increases the production cost and time cost.

[0004] In view of the above problem, the utility model file proposes a kind of titanium bar skinning machine detachable roller. INVENTION CONTENTS

[0005] The utility model aims at solving the shortcomings of traditional skinning machine roller in prior art, most of which adopt fixed design, roller replacement is difficult, equipment maintenance cost is high and adaptability is poor, and proposes a kind of titanium bar skinning machine detachable roller.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A kind of titanium bar skinning machine detachable roller, comprising:

[0008] Skinning machine main body, one side of the skinning machine main body is provided with two installation cavities, two the inside of installation cavity is rotatably provided with skinning machine drive shaft, two The skinning machine drive shaft is driven by the corresponding motor in the skinning machine main body;

[0009] Further comprising a plurality of fixed plates, a plurality of The fixed plate is a group of two, the two fixed plates of the same group are located in the same installation cavity, and are respectively fixedly connected with the inner wall of the two sides of installation cavity, the two The fixed plate of the same group is slidably connected with the same mounting bracket between, one side of two The mounting bracket is rotatably provided with two rotating shafts, and one end of a plurality of The rotating shaft is extended to the outside of the skinning machine main body;

[0010] Further comprising a plurality of rollers, a plurality of The roller is located outside the skinning machine main body, a plurality of The roller is sleeved on the outer wall of corresponding rotating shaft, wherein the two The roller corresponding to the upper and lower is matched, for completing the extrusion skinning of titanium bar;

[0011] Further comprising an adjusting assembly, the adjusting assembly is used to realize the fine adjustment of the distance between two adjacent rollers.

[0012] In a possible design, the outer wall of each of the plurality of rotating shafts is sleeved with a gasket and a fixing disc, the gasket and the fixing disc are located on the side of the roller away from the main body of the peeling machine, the gasket is located between the adjacent roller and the fixing disc, one end of each of the plurality of rotating shafts is threadedly sleeved with a fixing nut, the fixing nut is matched with one side of the fixing disc, and the fixing nut is used for completing extrusion and fixing of the fixing disc, so as to ensure that the roller is stably installed on the corresponding rotating shaft.

[0013] In a possible design, the adjusting assembly comprises two adjusting sliding grooves respectively formed on one side of the two mounting frames, the interiors of the plurality of adjusting sliding grooves are slidably connected with mounting blocks, and one end of each of the plurality of rotating shafts penetrates through the corresponding mounting block in a rotating mode. One side of each of the two mounting frames is fixedly installed with a sliding rail, the two sliding rails are arranged in an inclined mode and are in a symmetrical structure, the interior of the main body of the peeling machine is slidably connected with a moving block, the moving block is located between the two mounting cavities, the top and the bottom of the moving block are fixedly installed with two connecting rods, one end of each of the two adjacent connecting rods is fixedly installed with the same sliding support, the two sliding supports are respectively located in the two mounting cavities, one side of each of the two sliding supports is fixedly installed with a sliding plate, the two sliding plates are arranged in an inclined mode and are in a symmetrical structure, and the two sliding plates are slidably connected with the adjacent sliding rails, so as to drive the two mounting frames to be finely adjusted in height, so as to adjust the spacing between the two adjacent rollers. One side of the main body of the peeling machine penetrates through a screw rod in a rotating mode, the screw rod is threadedly connected with the moving block, the screw rod is used for driving the moving block and the two sliding supports to move, so as to realize synchronous movement of the two mounting frames.

[0014] In a possible design, the two mounting frames are located between the two peeling machine driving shafts, one end of each of the plurality of rotating shafts is fixedly sleeved with a second belt pulley, one end of each of the two peeling machine driving shafts is fixedly sleeved with a first belt pulley, and the two first belt pulleys are drivingly connected with the adjacent two second belt pulleys through the same belt.

[0015] In a possible design, one side of each of the two adjacent fixed plates away from each other is fixedly installed with an abutting block, one side of each of the two abutting blocks away from each other is provided with an inclined surface, one side of each of the two adjacent mounting blocks away from each other is fixedly installed with an abutting plate, the two abutting plates are matched with the inclined surfaces of the adjacent abutting blocks, so as to realize adjustment of the spacing between the two rotating shafts while the mounting frames move up and down, so as to ensure that the belt is continuously in a taut state; one side of each of the two adjacent adjusting sliding grooves away from each other is formed with two cylindrical grooves, the interiors of the plurality of cylindrical grooves are fixedly installed with springs, the other ends of the plurality of springs are fixedly connected with one side of the adjacent mounting block, and the plurality of springs are used for continuously pushing the adjacent mounting blocks, so as to make the corresponding abutting plates continuously abut against the adjacent abutting blocks.

[0016] In a possible design, a side of the peeling machine body is fixedly provided with a cover plate for covering the installation cavities, four movable holes are formed in the cover plate, the movable holes are connected with the adjacent installation cavities, and the four rotating shafts are penetrated through the corresponding movable holes to provide space for the position adjustment of the rotating shafts.

[0017] In use, the user can install the to-be-used roller on the rotating shafts. During installation, the roller is first sleeved on the corresponding rotating shaft, then the gasket and the fixing disc are installed in sequence, and finally the fixing nut is screwed on one end of the rotating shaft to press the fixing disc, so that the roller is stably installed on the rotating shaft. Then, the user can adjust the position of the roller according to the specifications and peeling requirements of the titanium bar to be processed. During adjustment, the user can rotate the screw rod by the hand wheel, and the screw rod can drive the moving block and the two sliding supports to move synchronously. When the sliding supports move, the two mounting frames can move closer to or away from each other through the cooperation of the inclined sliding plates and the corresponding sliding rails, so that the distance between the two rollers can be finely adjusted. When the two mounting frames move up and down, the plurality of mounting blocks can synchronously adjust the horizontal position along the inclined surface of the adjacent abutting blocks, so that the belt between the first pulley and the two adjacent second pulleys can be kept at an appropriate tensioning degree, and the belt can be prevented from being damaged due to over-tightening or from being loose to cause poor transmission effect. After adjustment, the power is turned on, and the user can start the peeling machine body. Under the transmission of the belt, the two peeling machine driving shafts can simultaneously drive the plurality of rotating shafts to rotate, so that the plurality of rollers can start to rotate and contact the corresponding titanium bar. During the peeling process, the user can adjust the parameters of the peeling machine, such as the rotating speed and the feeding speed, according to the actual situation, so as to optimize the peeling effect. When the roller is worn to a certain extent or needs to be replaced, the roller can be quickly disassembled by disassembling the fixing nut, the fixing disc and other structures, so that the user can conveniently clean, check and replace the roller. The replaced roller can be reinstalled on the corresponding rotating shaft according to the above operation, and then used for the peeling processing of the titanium bar.

[0018] Advantageous effects: In the titanium bar peeling machine, the two mounting frames are arranged to move closer to or away from each other, so that the distance between the two adjacent rollers can be finely adjusted. The titanium bar of different specifications and peeling requirements can be flexibly adjusted, the peeling effect and processing quality are ensured, and the flexibility and adaptability of the equipment are improved.

[0019] In the titanium bar peeling machine, the roller is fixed through the cooperation of the gasket, the fixing disc and the fixing nut. The disassembly and installation process is simple and fast, the user can conveniently clean, check and replace the roller, and the production cost and time cost are reduced.

[0020] The detachable roller of the titanium bar peeling machine can ensure that the belt between the first belt pulley and the adjacent two second belt pulleys is always at a proper tightness during adjustment, avoids the situation that the belt is too tight to be damaged or too loose to cause poor transmission effect, and improves the stability and reliability of the equipment.

[0021] The titanium bar peeling machine can flexibly adjust the roller spacing through the adjusting assembly, adapt to titanium bars of different specifications and requirements, and significantly improve the flexibility and adaptability of the equipment; the roller is simply fixed by the gasket, fixed disc and fixed nut, which is convenient for cleaning, inspection and replacement, reduces the production cost and time cost; in addition, the cooperation of the abutting block, the abutting plate and the spring ensures that the belt is properly tight, avoids damage or poor transmission, and enhances the stability and reliability of the equipment; in summary, the titanium bar peeling machine improves the peeling efficiency and equipment performance, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A three-dimensional structure schematic diagram of the detachable roller of the titanium bar peeling machine is provided for the utility model;

[0023] Figure 2 A roller installation structure schematic diagram of the detachable roller of the titanium bar peeling machine is provided for the utility model;

[0024] Figure 3 A cross-sectional structure schematic diagram of the detachable roller of the titanium bar peeling machine is provided for the utility model;

[0025] Figure 4 An adjusting assembly structure schematic diagram of the detachable roller of the titanium bar peeling machine is provided for the utility model;

[0026] Figure 5 An adjusting assembly split structure schematic diagram of the detachable roller of the titanium bar peeling machine is provided for the utility model;

[0027] Figure 6 A slide rail and slide plate installation structure schematic diagram of the detachable roller of the titanium bar peeling machine is provided for the utility model.

[0028] In the figure: 1, the peeling machine main body; 2, titanium bar; 3, roller; 4, rotating shaft; 5, gasket; 6, fixed disc; 7, fixed nut; 8, movable hole; 9, installation cavity; 10, peeling machine drive shaft; 11, moving block; 12, connecting rod; 13, sliding support; 14, mounting bracket; 15, fixed plate; 16, adjusting sliding groove; 17, cylindrical groove; 18, mounting block; 19, spring; 20, abutment plate; 21, abutment block; 22, first pulley; 23, second pulley; 24, slide rail; 25, sliding plate; 26, screw. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0030] Embodiment 1: refer to Figures 1-6 A roller comprises:

[0031] The peeling machine main body 1 is provided with two installation cavities 9 on one side. The two installation cavities 9 are both provided with a peeling machine drive shaft 10 rotatingly arranged inside, which is driven by a corresponding motor inside the peeling machine main body 1.

[0032] In this embodiment, a plurality of rollers 3 are arranged on the outside of the peeling machine main body 1, which are used for extruding and peeling the titanium bar 2. In order to realize detachable installation of the rollers 3, two fixed plates 15 are arranged in each installation cavity 9, which are fixedly connected with the two inner walls of the installation cavity 9. The two fixed plates 15 in the same group are slidingly connected with the same mounting bracket 14. The two mounting brackets 14 are both provided with two rotating shafts 4 rotatingly arranged on one side, and the rotating shafts 4 extend to the outside of the peeling machine main body 1 and are sleeved with the rollers 3.

[0033] In order to ensure that the roller 3 is stably installed on the rotating shaft 4, in this embodiment, the outer wall of the rotating shaft 4 is sleeved with a gasket 5 and a fixed disc 6, and the gasket 5 is located between the adjacent roller 3 and the fixed disc 6. One end of the rotating shaft 4 is threadedly sleeved with a fixed nut 7, which is matched with one side of the fixed disc 6 to complete the extrusion and fixation of the fixed disc 6.

[0034] In order to adjust the distance between the two adjacent rollers 3, the embodiment also includes an adjusting assembly. The adjusting assembly includes two adjusting sliding grooves 16 respectively opened on one side of the two mounting frames 14, and the inside of the adjusting sliding grooves 16 is slidably connected with a mounting block 18, and one end of the rotating shaft 4 is rotatably penetrated through the corresponding mounting block 18. In addition, the side of the two mounting frames 14 is fixedly installed with an inclined sliding rail 24, and the inside of the skinning machine body 1 is slidably connected with a moving block 11, and the moving block 11 is located between the two mounting cavities 9. The top and bottom of the moving block 11 are fixedly installed with two connecting rods 12, one end of the adjacent two connecting rods 12 is fixedly installed with the same sliding bracket 13, one side of the sliding bracket 13 is fixedly installed with an inclined sliding plate 25, and the sliding plate 25 is slidably connected with the adjacent sliding rail 24. By driving the moving block 11 to move, the height of the two sliding brackets 13 and the two mounting frames 14 can be adjusted, so as to adjust the distance between the two adjacent rollers 3. In order to drive the moving block 11 to move, one side of the skinning machine body 1 is rotatably penetrated with a screw rod 26, and the screw rod 26 is threadedly connected with the moving block 11.

[0035] Further, in the embodiment, the two mounting frames 14 are located between the two skinning machine drive shafts 10. In order to drive the rotating shaft 4 to rotate, one end of the plurality of rotating shafts 4 is fixedly sleeved with a second belt pulley 23, and one end of the two skinning machine drive shafts 10 is fixedly sleeved with a first belt pulley 22. The two first belt pulleys 22 are respectively connected with the adjacent two second belt pulleys 23 through the same belt transmission. In this way, when the skinning machine drive shaft 10 rotates, the rotating shaft 4 can be driven to rotate through the belt, and then the roller 3 is driven to rotate.

[0036] In order to ensure that the belt is in a taut state, in the embodiment, the side of the adjacent two fixed plates 15 close to each other is fixedly installed with an abutting block 21, and the side of the abutting block 21 is provided with an inclined surface. The side of the adjacent two mounting blocks 18 away from each other is fixedly installed with an abutting plate 20, and the abutting plate 20 is matched with the inclined surface of the adjacent abutting block 21. While the mounting frame 14 moves up and down, the abutting plate 20 and the inclined surface of the abutting block 21 can adjust the distance between the two rotating shafts 4, so as to ensure that the belt is always taut.

[0037] In addition, in the embodiment, the side of the adjacent two adjusting sliding grooves 16 close to each other is opened with two cylindrical grooves 17, the inside of the cylindrical grooves 17 is fixedly installed with a spring 19, and the other end of the spring 19 is fixedly connected with the side of the adjacent mounting block 18. The spring 19 is used to continuously push the adjacent mounting block 18, so as to make the corresponding abutting plate 20 continuously close to the adjacent abutting block 21, and keep the belt in a taut state.

[0038] The present application can be used in the field of skinning machine, and can also be used in other fields applicable to the present application.

[0039] Embodiment 2: Reference Figure 2 On the basis of Embodiment 1, an improved detachable roller for a titanium bar peeling machine is applied to the technical field of peeling machines.

[0040] In this embodiment, a cover plate is fixedly installed on one side of the peeling machine body 1, which is used to shield the installation cavity 9 and prevent dust and sundries from entering the installation cavity 9. Four movable holes 8 are formed in the inside of the cover plate, which are in communication with the adjacent installation cavities 9, and the four rotating shafts 4 all penetrate through the corresponding movable holes 8. In this way, when the rotating shaft 4 is adjusted in position, the movable hole 8 can provide space for the rotating shaft 4.

[0041] The working principle and use process of the technical solution are as follows:

[0042] In use, the user can install the roller 3 to be used on the plurality of rotating shafts 4. When installing, first, the roller 3 is sleeved on the corresponding rotating shaft 4, then the installation of the gasket 5 and the fixed disc 6 is sequentially performed, and finally the fixed nut 7 is screwed on one end of the rotating shaft 4 to extrude the fixed disc 6, thereby ensuring that the roller 3 is stably installed on the rotating shaft 4. Then, the user can adjust the position of the roller 3 according to the specifications of the titanium bar 2 to be processed and the peeling requirements. When adjusting, the user can rotate the screw rod 26 through the hand wheel, which can drive the moving block 11 and the two sliding supports 13 to move synchronously. When the sliding supports 13 move, through the cooperation of the inclined sliding plate 25 and the corresponding sliding rail 24, the two mounting brackets 14 can move closer to or away from each other, thereby the spacing between the two rollers 3 can be fine-tuned. When the two mounting brackets 14 move up and down, the plurality of mounting blocks 18 can synchronously adjust the horizontal position along the inclined surface of the adjacent abutting block 21, which can ensure that the belt between the first pulley 22 and the adjacent two second pulleys 23 is continuously at an appropriate tensioning degree, avoiding the belt from being damaged due to being too tight or the transmission effect being poor due to being too loose. After the adjustment is completed, the power is turned on, and the user can start the peeling machine body 1. Under the transmission of the belt, the two peeling machine drive shafts 10 can simultaneously drive the plurality of rotating shafts 4 to rotate, thereby the plurality of rollers 3 can start to rotate and contact with the corresponding titanium bar 2. At the same time, during the peeling process, the user can adjust the parameters of the peeling machine according to the actual situation, such as the rotating speed and the feeding speed, to optimize the peeling effect. When the roller 3 is worn to a certain degree or needs to be replaced, the roller 3 can be quickly disassembled by disassembling the above-mentioned fixed nut 7, fixed disc 6 and other structures, which facilitates cleaning, inspection and replacement operations. The replaced roller 3 can be reinstalled on the corresponding rotating shaft 4 according to the above operation, thereby continuing to be used for the peeling processing of the titanium bar 2.

[0043] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A detachable roller for a titanium bar peeling machine, characterized in that, include: The peeling machine body (1) has two mounting cavities (9) on one side. The two mounting cavities (9) are rotatably equipped with peeling machine drive shafts (10). The two peeling machine drive shafts (10) are driven by corresponding motors inside the peeling machine body (1). It also includes multiple fixing plates (15), the multiple fixing plates (15) are in pairs, the two fixing plates (15) in the same group are located in the same mounting cavity (9), and they are respectively fixedly connected to the inner walls of the two sides of the mounting cavity (9). The two fixing plates (15) in the same group are slidably connected to the same mounting frame (14). Two rotating shafts (4) are rotatably provided on one side of each of the two mounting frames (14), and one end of each of the multiple rotating shafts (4) extends to the outside of the peeling machine body (1). It also includes multiple rollers (3), all of which are located outside the peeling machine body (1). All of which are sleeved on the outer wall of the corresponding rotating shaft (4), wherein two rollers (3) that are corresponding to each other cooperate to complete the extrusion peeling of the titanium rod (2); It also includes an adjustment component for fine-tuning the distance between two adjacent rollers (3).

2. The detachable roller of the titanium rod peeling machine according to claim 1, characterized in that, The outer walls of the multiple rotating shafts (4) are fitted with gaskets (5) and fixing discs (6). The gaskets (5) and fixing discs (6) are located on the side of the rollers (3) away from the peeling machine body (1). The gaskets (5) are located between adjacent rollers (3) and fixing discs (6). One end of the multiple rotating shafts (4) is threaded with a fixing nut (7). The fixing nut (7) cooperates with one side of the fixing disc (6) to complete the compression and fixing of the fixing disc (6), thereby ensuring that the rollers (3) are stably installed on the corresponding rotating shafts (4).

3. The detachable roller of the titanium rod peeling machine according to claim 1, characterized in that, The adjustment assembly includes two adjustment grooves (16) respectively opened on one side of the two mounting brackets (14), and mounting blocks (18) are slidably connected inside the multiple adjustment grooves (16). One end of the multiple rotating shafts (4) rotatably passes through the corresponding mounting block (18). A slide rail (24) is fixedly installed on one side of each of the two mounting brackets (14). The two slide rails (24) are inclined and symmetrical. A moving block (11) is slidably connected inside the peeling machine body (1). The moving block (11) is located between the two mounting cavities (9). Two connecting rods (12) are fixedly installed at the top and bottom of the moving block (11). One end of two adjacent connecting rods (12) is fixedly installed with The same sliding bracket (13) has two sliding brackets (13) located in two mounting cavities (9) respectively. Each of the two sliding brackets (13) has a slide plate (25) fixedly installed on one side. Both slide plates (25) are inclined and symmetrical. Both slide plates (25) are slidably connected to the adjacent slide rail (24) to drive the two mounting frames (14) to make fine adjustments to the height, so as to adjust the distance between the two adjacent rollers (3). A screw (26) is rotatably passed through one side of the peeling machine body (1). The screw (26) is threadedly connected to the moving block (11) to drive the moving block (11) and the two sliding brackets (13) to move, thereby realizing the synchronous movement of the two mounting frames (14).

4. The detachable roller of the titanium rod peeling machine according to claim 3, characterized in that, Both mounting brackets (14) are located between the two peeling machine drive shafts (10). One end of each of the multiple rotating shafts (4) is fixedly fitted with a second pulley (23). One end of each of the two peeling machine drive shafts (10) is fixedly fitted with a first pulley (22). Both first pulleys (22) are connected to the two adjacent second pulleys (23) via the same belt drive.

5. The detachable roller of a titanium rod peeling machine according to claim 4, characterized in that, Each of the two adjacent fixed plates (15) has a stop block (21) fixedly installed on the side close to each other. Each of the two stop blocks (21) has a slope on the side close to each other. Each of the two adjacent mounting blocks (18) has a stop plate (20) fixedly installed on the side far from each other. Each of the two stop plates (20) cooperates with the slope of the adjacent stop block (21) to adjust the distance between the two rotating shafts (4) while the mounting frame (14) moves up and down, so as to ensure that the belt is always taut. Each of the two adjacent adjusting slides (16) has two cylindrical grooves (17) on the side close to each other. Each of the cylindrical grooves (17) has a spring (19) fixedly installed inside. The other end of each of the springs (19) is fixedly connected to one side of the adjacent mounting block (18). The springs (19) are used to continuously push the adjacent mounting block (18), so that the corresponding stop plate (20) is continuously pressed against the adjacent stop block (21).

6. The detachable roller of the titanium rod peeling machine according to claim 5, characterized in that, A cover plate is fixedly installed on one side of the peeling machine body (1). The cover plate is used to cover the mounting cavity (9). The cover plate has four movable holes (8) inside. All the movable holes (8) are connected to the adjacent mounting cavities (9). The four rotating shafts (4) pass through the corresponding movable holes (8) to provide space for the position adjustment of the rotating shafts (4).