Wedge-shaped adjustable cutter shaft isolation sleeve and cutting device

By adopting a wedge-shaped adjustable tool shaft isolation sleeve in the aluminum tape coil slitting equipment, the sliding connection between the fixed-distance ring seat and the sliding part and the adjustment of multiple drive mechanisms, the problems of inconvenient adjustment of the end surface of the disc cutter and small adjustment range are solved, and more efficient and accurate aluminum tape coil slitting is achieved.

CN223012628UActive Publication Date: 2025-06-24CHONGQING LVDAO TECH CO LTD
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Patent Information

Application Number
CN202421935529.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-06-24
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

During the aluminum tape slitting process, the machining error of the disc cutter and the isolation sleeve causes the blade end surface to jump beyond the error, affecting the slitting quality. The gasket adjustment method used in the prior art is inconvenient to operate, has a small adjustment range and cannot be reused.

Method used

The wedge-shaped adjustable tool shaft isolation sleeve is adopted, and the sliding connection between the fixed-distance ring seat and the sliding part is adjusted by at least three driving mechanisms to accurately adjust the end surface of the disc tool.

Benefits of technology

It realizes convenient and large-scale adjustment of the end surface of the disc cutter, making the adjustment more accurate, reusable, and improves the quality and efficiency of aluminum tape coil slitting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of aluminum material processing equipment, and discloses a wedge-shaped adjustable cutter shaft spacer sleeve and a cutting device, which comprise a distance ring seat, a sliding part is connected on the distance ring seat along the axial direction of the distance ring seat in a sliding manner, one side of the sliding part protrudes out of one end of the distance ring seat, and the other side of the sliding part is connected with the distance ring seat. A matching surface matched with the cutting disc is arranged on one side, protruding out of the distance ring seat, of the sliding part; the distance ring seat is provided with at least three driving mechanisms used for driving the sliding part to slide relative to the distance ring seat, and the driving mechanisms are evenly arranged along the periphery of the distance ring seat. According to the utility model, the plurality of driving mechanisms are arranged to adjust the position of the sliding part, so that the position of a part of area or the whole area of the cutting disc is adjusted, and the problems of inconvenience in operation and small adjusting range when the end face of the cutting disc is adjusted during slitting of an aluminum strip coil in the prior art are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of aluminum material processing equipment, in particular to a wedge-shaped adjustable knife shaft isolation sleeve and a cutting device. Background Art

[0002] During the finishing process of aluminum plates and strips, the coils need to be slit into multiple aluminum strips of a certain width according to customer needs. Currently, the slitting work is mainly completed by longitudinal slitting equipment, in which the part used for longitudinal slitting in the longitudinal slitting equipment mainly includes a slitting knife shaft and a plurality of disc knives fixedly connected to the slitting knife shaft. An isolation sleeve is arranged between adjacent disc knives, and the isolation sleeve is fixed on the slitting knife shaft. The isolation sleeve is used to control the distance between adjacent disc knives, thereby controlling the width of the slit aluminum strip.

[0003] During the slitting process, due to the processing errors of the disc knife and the isolation sleeve, the disc knife at the far end of the slitting knife shaft reference surface often has excessive blade end runout after assembly, resulting in inconsistent ratios between the bright area and the broken area of ​​the aluminum strip cross section during slitting, affecting the appearance quality of the cross section after the aluminum strip is slid and coiled. At the same time, fibrous burrs are easily generated. After the burrs fall off, they are rolled into the aluminum strip coil, or adhere to the guide rollers and guide plates of the machine series, forming foreign matter indentations or indentations on the surface of the aluminum strip, affecting the surface quality of the aluminum strip coil.

[0004] In order to reduce the problem of disc cutter blade end face runout tolerance in the prior art, a thinner gasket is usually set between adjacent disc cutters, and the disc cutters are fine-tuned using the gaskets, thereby improving the slitting quality of the aluminum strip coil. Although the use of gaskets can effectively reduce the problem of disc cutter blade runout tolerance, in actual application, the thickness of the gasket is single, and the size range of the disc cutter adjustment is limited; at the same time, the gasket is not reusable, and the installation of the gasket is also relatively complicated, which affects the efficiency of aluminum strip coil slitting. Therefore, it is necessary to set up an adjustment structure that can quickly, conveniently and accurately adjust the end face of the disc cutter to improve the quality and efficiency of aluminum strip coil slitting. Utility Model Content

[0005] The utility model aims to provide a wedge-shaped adjustable knife shaft isolation sleeve and a cutting device to solve the problems in the prior art of inconvenient operation and small adjustment range when adjusting the end face of the disc knife during aluminum strip coil slitting, thereby effectively improving the quality and efficiency of aluminum strip coil slitting.

[0006] To solve the above problems, the present utility model adopts the following technical solution: A wedge-shaped adjustable cutter shaft spacer sleeve, including a fixed-distance ring seat, on which a sliding part is slidably connected along the axial direction of the fixed-distance ring seat. One side of the sliding part protrudes beyond one end of the fixed-distance ring seat, and a mating surface for cooperating with the disc cutter is provided on the side of the sliding part protruding beyond the fixed-distance ring seat; a driving mechanism for driving the sliding part to slide relative to the fixed-distance ring seat is provided on the fixed-distance ring seat, and the number of driving mechanisms is at least three and all driving mechanisms are evenly arranged around the fixed-distance ring seat.

[0007] The principle of this solution is: In this application, by providing a fixed-distance ring seat and a sliding part that can slide relative to each other, during use, the fixed-distance ring seat is fixedly connected to the cutter shaft in the prior art, and the end of the sliding part provided with the mating surface is located outside one side of the fixed-distance ring seat. During the use process, the mating surface provided on the sliding part comes into contact and cooperation with the disc cutter. By at least three driving mechanisms, the position of the sliding part relative to the fixed-distance ring seat is adjusted, so that the local position or the whole of the mating surface pushes the end face of the disc cutter to move, thereby achieving the purpose of adjusting the end face of the disc cutter.

[0008] In addition, it should be noted that since the number of driving mechanisms in this application is at least three, and the position of the sliding part is adjusted one by one by each driving mechanism during the adjustment process. Therefore, during the process of adjusting the sliding part by using one of the driving mechanisms, the remaining driving mechanisms form a cooperation relationship with the sliding part, which is beneficial to maintaining the stability of other positions of the sliding part, so that the adjustment of the disc cutter can be carried out orderly and stably.

[0009] The beneficial effects of the present utility model are:

[0010] 1. It can be adjusted conveniently and within a large range: Compared with the method of adjusting with gaskets in the prior art, the thickness of the gaskets is single, and only the adjustment of a certain size can be realized, and the adjustment range is small. In this application, the sliding part is slidably connected to the fixed-distance ring seat. During the adjustment process, the sliding part can be adjusted to a suitable position by using the driving mechanism according to actual needs. Therefore, in this application, a suitable distance can be selected for adjustment according to actual needs, and the distance range is larger.

[0011] 2. The adjustment of the end face of the disc cutter is more accurate: In this application, since the number of driving mechanisms provided is at least three, and all driving mechanisms are evenly arranged around the fixed-distance ring seat, it is possible to adjust one or more of the driving mechanisms to adjust the local position of the end face of the disc cutter, and it is also possible to adjust all the driving mechanisms to adjust the whole end face of the disc cutter. Therefore, by adopting the technical solution in this application, the disc cutter can be adjusted more flexibly and accurately, so that the disc cutter can more accurately complete the slitting of the aluminum strip coil and improve the quality of the slitting of the aluminum strip coil.

[0012] 3. Capable of repeated and precise adjustment: In this application, the sliding process of the sliding part driven by the driving mechanism can be repeated. Therefore, the technical solution in this application can repeatedly and precisely adjust the end face of the disc cutter for multiple times, which has higher economy compared with the shims in the prior art.

[0013] Preferably, as an improvement, the sliding part includes an elastic ejecting ring, and one end of the fixed-distance ring seat is provided with a sliding fit groove that slidably cooperates with the elastic ejecting ring.

[0014] In this solution, the sliding part is a ring-shaped structure of an elastic ejecting ring, and a sliding fit groove is opened on the fixed-distance ring seat. Under the limiting and guiding action of the sliding fit groove, the elastic ejecting ring stably slides relative to the fixed-distance ring seat under the driving force of the driving mechanism, so as to stably adjust the end face of the disc cutter; in addition, the elastic ejecting ring in this solution has a certain elasticity. Therefore, when using one of the driving mechanisms to drive the partial ejection of the elastic ejecting ring to adjust the local position of the disc cutter, the elastic ejecting ring can automatically undergo elastic deformation, ensuring that the elastic ejecting ring can be reused repeatedly.

[0015] Preferably, as an improvement, the driving mechanism includes a driving wedge block, a tightening adjustment part, and an elastic reset part. The driving wedge block is slidably matched with the fixed-distance ring seat, and the driving wedge block and the elastic ejecting ring are in wedge surface fit. The tightening adjustment part is used to push the driving wedge block to slide relative to the fixed-distance ring seat, and the elastic reset part and the tightening adjustment part are respectively located on both sides of the driving wedge block.

[0016] In this solution, the driving wedge block is pushed to slide relative to the fixed-distance ring seat by the tightening adjustment part. Since the driving wedge block and the elastic ejecting ring are in wedge surface fit, when the driving wedge block slides under the pushing action of the tightening adjustment part, the driving wedge block can push the elastic ejecting ring to move out of the fixed-distance ring seat to realize the adjustment of the end face of the disc cutter; when the pushing action of the tightening adjustment part on the driving wedge block is gradually cancelled, under the elastic force of the elastic reset part, the driving wedge block can slide in the reverse direction, so that the ejecting action of the driving wedge block on the elastic ejecting ring disappears. Under the pressure of the disc cutter, the corresponding position of the elastic ejecting ring will automatically reset, enabling the disc cutter to be adjusted in two different directions in this solution.

[0017] Preferably, as an improvement, a protruding seat is fixedly connected to the side of the driving wedge block facing away from the elastic ejecting ring. The tightening adjustment part includes an adjustment screw threadedly matched with the fixed-distance ring seat, and the elastic reset part includes a reset spring. One end of the reset spring abuts against the fixed-distance ring seat, and the other end abuts against the protruding seat. The adjustment screw abuts against the end of the protruding seat away from the reset spring.

[0018] In this solution, the pressing and adjusting member is an adjusting screw. By rotating the adjusting screw, the end of the adjusting screw can move towards the driving wedge block, and the driving wedge block is pushed by the adjusting screw. The structure is simple and the adjustment is convenient. In addition, in this solution, by providing a protruding seat on the driving wedge block, the return spring and the adjusting screw can easily apply force to the driving wedge block.

[0019] Preferably, as an improvement, the fixed-distance ring seat is provided with an active fitting groove that slidably cooperates with the protruding seat.

[0020] In this solution, the provision of the active fitting groove makes the sliding of the driving wedge block relative to the fixed-distance ring seat more accurate and stable.

[0021] Preferably, as an improvement, the fixed-distance ring seat is provided with a support seat, and the support seat is in wedge-shaped cooperation with the elastic ejecting ring.

[0022] In this solution, by providing a support on the fixed-distance ring seat, the support seat and the elastic ejecting ring are also in a wedge-shaped cooperation relationship. When adjusting the end face of the disc cutter by changing the position of the elastic ejecting ring driven by the driving wedge block, the elastic ejecting ring and the support seat are always in a wedge-shaped cooperation state, so that the support seat can always stably support the elastic ejecting ring, ensuring that the elastic ejecting ring can stably support the end face of the disc cutter after adjusting the end face of the disc cutter, so that the disc cutter can stably slit the aluminum strip coil after adjusting the position.

[0023] Preferably, as an improvement, the fixed-distance ring seat is provided with a mounting hole, and the end of the return spring away from the protruding seat is connected to the mounting hole.

[0024] In this solution, one end of the return spring is connected to the mounting hole, so that the return spring can stably elastically support the protruding seat during use, so that the driving wedge block can be quickly and stably reset.

[0025] Preferably, as an improvement, the fixed-distance ring seat is fixedly connected with a guiding pin, and a guiding groove is provided on the side wall of the elastic ejecting ring along the axial direction of the fixed-distance ring seat, and the guiding pin is slidably matched with the guiding groove.

[0026] In this solution, the sliding of the elastic ejecting ring is guided by the guiding pin, avoiding the situation that when the elastic ejecting ring is ejected by the driving wedge block, the elastic ejecting ring can only move along the axial direction of the fixed-distance ring seat and cannot rotate circumferentially relative to the fixed-distance ring seat, making the adjustment of the elastic ejecting ring more accurate and stable.

[0027] Preferably, as an improvement, the number of the driving mechanisms is 3 - 6.

[0028] In this solution, the number of driving mechanisms is set to 3-6 according to the size specifications of the elastic ejector ring, so as to accurately adjust the end face of the disc cutter, while avoiding too many driving mechanisms, which would result in complex structure and high processing cost.

[0029] A cutting device comprises the wedge-shaped adjustable knife shaft isolation sleeve.

[0030] In this solution, by providing a wedge-shaped adjustable knife shaft isolation sleeve on the cutting device, the disc knife can be accurately adjusted, the operation is convenient, and the slitting of the aluminum strip coil can be carried out more efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model.

[0032] Figure 2 for Figure 1 Exploded diagram.

[0033] Figure 3 This is an exploded view of the first embodiment of the utility model when looking up after the distance ring seat is hidden.

[0034] Figure 4 This is an exploded view from a top-down perspective after the distance ring seat is hidden in the first embodiment of the utility model.

[0035] Figure 5 It is a schematic diagram of the distance ring seat in the first embodiment of the utility model.

[0036] Figure 6 It is an exploded schematic diagram of the connection between the distance ring seat and the elastic ejection ring in the second embodiment of the utility model. DETAILED DESCRIPTION

[0037] The following is further described in detail through specific implementation methods:

[0038] The figure marks in the drawings of the specification include: a distance ring seat 1, a keyway 101, a sliding fit groove 102, a movable fit groove 103, a mounting hole 104, a supporting wedge surface 105, an elastic ejection ring 2, an ejection wedge surface 201, a guide groove 202, a driving wedge block 3, a protruding seat 301, a driving wedge surface 302, a fitting wedge surface 303, an adjusting screw 4, a return spring 5, and a guide pin 6.

[0039] Embodiment 1

[0040] This embodiment is as shown in the attached Figure 1 and Figure 2As shown: A wedge-shaped adjustable cutter shaft spacer sleeve, including an annular fixed-distance ring seat 1. A fitting hole is axially penetrated through the middle of the fixed-distance ring seat 1, and a keyway 101 is opened on the fitting hole so that the fixed-distance ring seat 1 can be fixedly connected to the cutter shaft in the prior art through a flat key.

[0041] Combined with Figure 1 and Figure 2 As shown, a sliding part is slidably connected to the top end of the fixed-distance ring seat 1 along the axis of the fixed-distance ring seat 1. The sliding part is an elastic ejecting ring 2 with an annular structure. The top surface of the elastic ejecting ring 2 is a flat mating surface. When the elastic ejecting ring 2 slides relative to the fixed-distance ring seat 1, the mating surface can slide outside the top surface of the fixed-distance ring seat 1 and contact the end face of the disc cutter in the prior art. In order to enable the elastic ejecting ring 2 to slide more stably relative to the fixed-distance ring seat 1, in this embodiment, an annular sliding mating groove 102 is opened at the top end of the fixed-distance ring seat 1, and the elastic ejecting ring 2 is slidably mated with the sliding mating groove 102.

[0042] In this embodiment, a driving mechanism for driving the elastic ejecting ring 2 to slide along the axis of the fixed-distance ring seat 1 is provided on the fixed-distance ring seat 1. The number of driving mechanisms is at least three. In this embodiment, according to the specifications of the disc cutter, the number of driving mechanisms is preferably 4 - 6. Figure 2 The case where the number of driving mechanisms is four is shown in Figure 3 Four driving mechanisms are evenly arranged circumferentially along the central axis of the fixed-distance ring seat 1. In this embodiment, the driving mechanism includes a driving wedge 3, a tightening adjustment part, and an elastic reset part. Combined with Figure 5 , a protruding seat 301 is integrally formed on the side of the driving wedge 3 facing the inside of the fixed-distance ring seat 1. Combined with Figure 5 , an activity mating groove 103 slidably mated with the protruding seat 301 is opened on the fixed-distance ring seat 1. The tightening adjustment part is an adjustment screw 4. The adjustment screw 4 is threadedly mated with the fixed-distance ring seat 1, and one end of the adjustment screw 4 extends into the activity mating groove 103 and abuts against the protruding seat 301. By rotating the adjustment screw 4, the adjustment screw 4 can slide in the direction close to the activity mating groove 103, thereby pushing the protruding seat 301 to slide along the activity mating groove 103; in addition, the elastic reset part in this embodiment is a reset spring 5. In order to facilitate the installation of the reset spring 5, an installation hole 104 is opened on the inner wall of the activity mating groove 103. One end of the reset spring 5 is sleeved in the installation hole 104, the other end of the reset spring 5 abuts against the protruding seat 301, and the reset spring 5 and the adjustment screw 4 are respectively located on both sides of the protruding seat 301.

[0043] Combined with Figure 2 , Figure 3 and Figure 4, on one side of the elastic ejection ring 2 facing the distance - setting ring seat 1, four ejection wedge - shaped surfaces 201 are integrally formed. On the driving wedge block 3, a driving wedge - shaped surface 302 is integrally formed. The driving wedge - shaped surface 302 is in wedge - surface fit with the ejection wedge - shaped surface 201. At the same time, on the distance - setting ring seat 1, a supporting wedge - shaped surface 105 is integrally formed. On the driving wedge block 3, a mating wedge - shaped surface 303 is integrally formed. The mating wedge - shaped surface 303 is in wedge - surface fit with the supporting wedge - shaped surface 105. By setting the supporting wedge - shaped surface 105, the driving wedge block 3 provided with the mating wedge - shaped surface 303 can be supported by the supporting wedge - shaped surface 105, so that no matter how the driving wedge block 3 slides, it can be stably supported by the distance - setting ring seat 1, so that the driving wedge block 3 can support the elastic ejection ring 2. Finally, it is ensured that no matter what position the elastic ejection ring 2 is adjusted to, it can provide a stable acting force on the segment disc of the disc cutter, ensuring that the position of the disc cutter is stable after adjustment and can accurately complete the slitting operation of the aluminum strip coil.

[0044] The specific implementation process is as follows:

[0045] In this embodiment, a plurality of the wedge - type adjustable cutter - shaft spacer sleeves in this embodiment are installed on the cutter shaft in the prior art, and a disc cutter is arranged between adjacent spacers. Specifically, the distance - setting ring seat 1 is fixedly connected to the cutter shaft through a flat key, and then the adjusting screw 4 is manually rotated to make the adjusting screw 4 slide in the direction close to the protruding seat 301. Since the end of the adjusting screw 4 always abuts against the protruding seat 301, during the sliding process of the adjusting screw 4, the protruding seat 301 and the driving wedge block 3 will be pushed to slide along the movable mating groove 103. Since only one adjusting screw 4 is rotated during the adjustment process and the remaining three adjusting screws 4 are not rotated, at this time, under the jacking action of the remaining three driving wedge blocks 3, the elastic ejection ring 2 cannot rotate circumferentially along the distance - setting ring seat 1 but can only move axially along the distance - setting ring seat 1. Thus, after rotating the corresponding adjusting screw 4, when the corresponding driving wedge block 3 slides along the movable mating groove 103, under the wedge - surface fit between the driving wedge block 3 and the elastic ejection ring 2, the relative position of the elastic ejection ring 2 is ejected outside the end face of the distance - setting ring seat 1, so that the corresponding position of the elastic ejection ring 2 pushes the end face of the disc cutter outside the end of the distance - setting ring seat 1, and finally the adjustment of the end face of the disc cutter is realized.

[0046] When it is necessary to adjust the end face of the disc cutter into the fixed-distance ring seat 1, only need to rotate the adjusting screw 4 in the reverse direction, so that the adjusting screw 4 moves away from the corresponding protruding seat 301. Under the elastic force of the corresponding return spring 5, the protruding seat 301 automatically moves synchronously with the adjusting screw 4, so that both sides of the protruding seat 301 are always in a state of being tightly abutted against the return spring 5 and the adjusting screw 4 respectively. During the movement of the protruding seat 301, the driving wedge 3 is driven to move synchronously. Since the driving wedge 3 and the elastic ejecting ring 2 are in a wedge surface fit, and the disc cutter and the elastic ejecting ring 2 are in a state of being closely attached to each other, when the driving wedge 3 moves following the protruding seat 301, the disc cutter automatically pushes the elastic ejecting ring 2 to move towards the inside of the fixed-distance ring seat 1, so that the disc cutter is always in a fitting state with the elastic ejecting ring 2.

[0047] A cutting device includes the above-mentioned wedge-shaped adjustable cutter shaft spacer sleeve, so that the cutting device can stably and accurately perform the slitting operation on the aluminum strip coil.

[0048] Embodiment 2

[0049] The difference between Embodiment 2 and Embodiment 1 is that as Figure 6 shown, in this embodiment, a guide pin 6 is fixedly connected to the fixed-distance ring seat 1 by threads, and a guide groove 202 is formed on the side wall of the elastic ejecting ring 2 along the axial direction of the fixed-distance ring seat 1. The guide pin 6 and the guide groove 202 are in sliding fit. Through the limiting and guiding effects of the guide groove 202 on the guide pin 6 in this embodiment, the elastic ejecting ring 2 can only slide along the axial direction of the fixed-distance ring seat 1 and cannot rotate circumferentially relative to the fixed-distance ring seat 1, further improving the stability of the elastic ejecting ring 2 during the adjustment process, so as to achieve a more accurate and stable adjustment of the end face of the disc cutter.

[0050] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A wedge-shaped adjustable knife shaft isolation sleeve, characterized in that: It comprises a distance ring seat, on which a sliding part is connected to the distance ring seat in an axial sliding manner, one side of the sliding part protrudes out of one end of the distance ring seat, and a side of the sliding part protruding out of the distance ring seat is provided with a matching surface for matching with a disc cutter; the distance ring seat is provided with a driving mechanism for driving the sliding part to slide relative to the distance ring seat, the number of the driving mechanisms is at least three and all the driving mechanisms are evenly arranged around the distance ring seat.

2. The wedge-shaped adjustable knife shaft isolation sleeve according to claim 1, characterized in that: The sliding part comprises an elastic ejection ring, and one end of the distance ring seat is provided with a sliding matching groove which is slidably matched with the elastic ejection ring.

3. The wedge-shaped adjustable knife shaft isolation sleeve according to claim 2, characterized in that: The driving mechanism includes a driving wedge, a tightening adjustment piece and an elastic reset piece. The driving wedge is slidably matched with the distance ring seat, and the wedge surface between the driving wedge and the elastic ejection ring is matched. The tightening adjustment piece is used to push the driving wedge to slide relative to the distance ring seat. The elastic reset piece and the tightening adjustment piece are respectively located on both sides of the driving wedge.

4. The wedge-shaped adjustable knife shaft spacer according to claim 3, characterized in that: The driving wedge block is fixedly connected with a protruding seat on one side away from the elastic ejection ring, the tightening adjustment member includes an adjusting screw threadedly matched with the distance ring seat, the elastic return member includes a return spring, one end of the return spring is against the distance ring seat, and the other end is against the protruding seat, and the adjusting screw is against one end of the protruding seat away from the return spring.

5. The wedge-shaped adjustable knife shaft spacer according to claim 4, characterized in that: The distance ring seat is provided with a movable matching groove which is slidably matched with the protruding seat.

6. The wedge-shaped adjustable knife shaft spacer according to claim 4, characterized in that: A support seat is arranged on the distance ring seat, and a wedge surface is fitted between the support seat and the elastic ejection ring.

7. The wedge-shaped adjustable knife shaft spacer according to claim 4, characterized in that: The distance ring seat is provided with a mounting hole, and one end of the return spring away from the protruding seat is connected to the mounting hole.

8. The wedge-shaped adjustable knife shaft spacer according to claim 2, characterized in that: A guide pin is fixedly connected to the distance ring seat, and a guide groove arranged along the axial direction of the distance ring seat is opened on the side wall of the elastic ejection ring, and the guide pin is slidably matched with the guide groove.

9. The wedge-shaped adjustable knife shaft isolation sleeve according to claim 1, characterized in that: The number of the driving mechanisms is 3-6.

10. A cutting device, characterized in that: It comprises a wedge-shaped adjustable knife shaft isolation sleeve as described in any one of claims 1-9.