CN219384326U - Rim charge collection device and cutting machine - Google Patents

Abstract

The embodiment of the application provides a rim charge collection device and cutting machine relates to diaphragm production facility field. The rim charge collecting device comprises a winding core which is of a hollow structure; the winding core between adjacent shrinkage wheels is used for winding the rim charge; each pinch wheel is configured to automatically adjust an outer diameter of the pinch wheel based on an amount of pressure experienced by the pinch wheel. The rim charge collection device of this application embodiment is when collecting narrow rim charge, and the rim charge is difficult to collapse, the winding roll, and the diaphragm terminal surface of the adjacent station of rim charge is difficult to take place unusual in the in-process of cutting the diaphragm moreover.

Description

Rim charge collection device and cutting machine

Technical Field

The application relates to the field of diaphragm production equipment, and particularly relates to a rim charge collecting device and a dividing and cutting machine.

Background

In the preparation process of the diaphragm product, a part of the edge area of the diaphragm is cut and collected so that the size of the diaphragm meets the actual requirement, and the cut and collected part is generally called as rim charge; the rim charge is generally cut and collected by adopting a cutting machine, and the cutting machine generally comprises a rim charge collecting system and a rolling system, wherein the rim charge collecting system is used for collecting the rim charge, and the rolling system is used for rolling a diaphragm for removing the rim charge.

During the collection process of the rim charge, the rolling diameter is larger and larger, which causes the rim charge to collapse and wind up a roller, thereby influencing the product and the production efficiency, and especially the rim charge is more obvious; in addition, in the existing dividing and cutting machine, the rim charge collecting system and the rolling system are controlled by two motors generally, so that relative speed difference is easy to generate, rolling tension is different, and in the dividing and cutting process of the diaphragm, the diaphragm end faces of adjacent stations of the rim charge are easy to be abnormal.

Disclosure of Invention

The embodiment of the application provides a rim charge collection device and cutting machine, when collecting narrow rim charge, improves the phenomenon that the rim charge is easy to collapse, the roller is twined, and in the in-process of cutting the diaphragm, the diaphragm terminal surface of the adjacent station of rim charge is unusual is improved moreover.

In a first aspect, an embodiment of the present application provides an edge material collecting device, which includes a winding core, where the winding core is a hollow structure; the winding core between adjacent shrinkage wheels is used for winding the rim charge; each pinch wheel is configured to automatically adjust an outer diameter of the pinch wheel based on an amount of pressure experienced by the pinch wheel.

In the above-mentioned realization process, when rim charge collection device work, the rim charge can the winding of round on the book core to form and be similar to cylindric structure, along with the gradual increase of rim charge collection volume, the diameter of cylindric structure also increases gradually. In the whole process of collecting the rim charge, pressure is usually applied to the rolled rim charge all the time so that the surface of the rim charge is kept flat, the surface flatness of the cylindrical rim charge which is gradually increased can be ensured, and the collecting mode is generally called contact rolling.

In this application is implemented, the rim charge is located between two adjacent shrink wheels, and the external diameter of every shrink wheel can all be adjusted along with the change of pressure moreover, even like this cylindric rim charge diameter increases gradually, two shrink wheels can both play the effect of centre gripping rim charge all the time, improves rim charge (especially narrow rim charge) and collapses, the kinking roller.

In addition, since the winding core is of a hollow structure, the winding core can be sleeved on the surface of a power mechanism such as a roller; compared with the prior device, the sleeved winding core can synchronously move with the power device, and the relative speed difference between the rim charge and other parts of the diaphragm can not be generated, so that the end face of the diaphragm at the adjacent station of the rim charge is not easy to be abnormal in the process of slitting the diaphragm.

In one possible implementation, each shrink wheel includes an inner ring, an outer ring and a plurality of elastic members, the inner ring is sleeved outside the winding core, the outer ring is formed by surrounding a plurality of groups of support assemblies, one elastic member is arranged between one group of support assemblies and the inner ring, and the elastic members are configured to automatically adjust the outer diameter of the shrink wheel based on the pressure applied to the outer ring.

In the implementation process, each shrink wheel comprises an inner ring and an outer ring, the outer ring is formed by encircling a plurality of groups of support assemblies, elastic pieces arranged between each group of support assemblies and the inner ring can be compressed, so that the support assemblies have a trend of being far away from the inner ring, and the outer diameter of each shrink wheel can be automatically adjusted based on the pressure applied by the shrink wheel.

In one possible implementation, each group of support assemblies includes a first support piece and a second support piece, and the second support piece is movably connected with the first support piece along the circumferential direction of the outer ring; one end of each elastic piece is fixed on the inner ring, the other end of each elastic piece is fixed on the second supporting piece, and the elastic pieces adjust the overlapping range of the second supporting piece and the first supporting piece in the circumferential direction of the outer ring.

In the above implementation process, each group of supporting components comprises a first supporting piece and a second supporting piece, once the pressure born by the shrinkage wheel is reduced, the second supporting piece moves towards the direction far away from the inner ring, so that the superposition range of the first supporting piece and the second supporting piece is reduced, the whole performance is that the supporting components are unfolded, and the outer diameter of the shrinkage wheel is enlarged. If the supporting component is not affected by the pressure at all, the elastic component can be in a natural extension state, at the moment, the supporting component can be unfolded to the maximum range, and the outer diameter of the contracting wheel also reaches the maximum range.

In one possible implementation, the second support sheet is slidably connected to the first support sheet to adjust the overlapping range of the second support sheet and the first support sheet.

In the implementation process, the sliding arrangement mode is beneficial to the outer diameter of the contracting wheel to be capable of adjusting the external pressure correspondingly more rapidly.

In one possible implementation manner, in each group of support assemblies, the first support piece is provided with a first sliding rail, and the second support piece is provided with a first sliding groove matched with the first sliding rail; the first sliding rail is arranged in the first sliding groove in a sliding manner so as to adjust the superposition range of the second supporting piece and the first supporting piece.

In the implementation process, the second supporting piece can slide relatively to the first supporting piece more easily due to the arrangement of the first sliding groove and the first sliding rail.

In one possible implementation, the second support tab is no more distant from the inner ring than the first support tab.

In the implementation process, the second supporting sheet of the shrinkage wheel meeting the conditions can be more inward; when the outer diameter of the shrink wheel is reduced, the second support sheet is folded and covered by the first support sheet, and when the outer diameter of the shrink wheel is gradually increased to the maximum, the second support sheet gradually gets rid of the coverage of the first support sheet until the second support sheet is completely displayed.

In one possible implementation, in each set of support assemblies, the arc length and the arc length of the first support sheet and the second support sheet are equal.

In the above implementation, the second supporting sheet may be completely covered by the first supporting sheet, so that the supporting assembly can be contracted to the greatest extent.

In one possible implementation, each pinch wheel is slidably mounted on the winding core to adjust the distance between two adjacent pinch wheels.

In the realization process, the shrinkage wheels are arranged on the winding core in a sliding manner, so that the distance between the adjacent shrinkage wheels can be adjusted more conveniently, and the rim charge with different sizes can be clamped.

In one possible implementation, a second sliding groove is arranged on the outer wall of the winding core, and a second sliding rail corresponding to the second sliding groove is arranged on the inner ring of each shrinkage wheel.

In the implementation process, each shrinkage wheel can slide on the winding core through the second sliding groove and the second sliding rail until the two adjacent shrinkage wheels are adjusted to a proper distance.

In one possible implementation, the side wall of the winding core is provided with a notch penetrating through two ends of the winding core along the axial direction.

In the implementation process, the existence of the opening ensures that the inner diameter of the winding core is adjustable, if external force is applied to enable the winding core to expand outwards, the opening degree of the opening is increased, the inner diameter of the winding core is increased, the shrinkage wheel can be well fixed on the outer side of the winding core, and the winding core can be well fixed on other power mechanisms; if the external force is applied to extrude the winding core inwards, the opening degree of the notch is reduced or even disappears, the inner diameter of the winding core is reduced, the rim charge collected on the winding core can be conveniently taken out, and the contraction wheel and the winding core can be easily disassembled.

In a second aspect, an embodiment of the present application provides a splitting machine, including a steel roller, and the above-mentioned rim charge collecting device, the steel roller is parallel to the core and is spaced apart, and the steel roller is used for contacting with the surface of shrink wheel in order to provide pressure to the shrink wheel.

In the implementation process, when the splitting machine works, the winding cores can wind the rim charge between two adjacent contraction wheels, the steel roller can be pressed on the surface of the rim charge, the distance between the steel roller and the winding cores can be more and more far along with the increase of the collection quantity of the rim charge, and the steel roller is always pressed on the surface of the rim charge so as to ensure the flatness of the rim charge; at this time, the outer diameter of the pinch roller is also compressed by the steel roller and kept consistent with the diameter of the collected rim charge until the outer diameter of the pinch roller becomes maximum.

In one possible implementation, the slitting machine further includes an axle arm, and the winding core in the edge collecting device can be sleeved on an outer surface of the axle arm.

In the implementation process, the shaft arm can play a role in providing power, so that the winding core can collect and wind rim charge on the surface.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a rim charge collecting device when a retractable wheel according to an embodiment of the present application is fully extended;

FIG. 2 is a schematic view of the back structure of the rim charge collecting apparatus of FIG. 1;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a schematic structural view of a retractable wheel provided in an embodiment of the present application during deployment;

FIG. 5 is a schematic view of a retractable wheel according to an embodiment of the present disclosure from another perspective during deployment;

fig. 6 is a schematic structural diagram of a splitting machine according to an embodiment of the present application.

Icon: 001-a rim charge collection device; 002-rim charge; 003-dividing and cutting machine; 100-shrink wheel; 110-an outer ring; 111-a support assembly; 112-a first support sheet; 113-a second support sheet; 114-a first slide rail; 115-a first chute; 120-an inner ring; 121-a second slide rail; 130-an elastic member; 131-a telescopic support rod; 132-a telescopic spring; 200-winding the core; 210-opening; 220-a second chute; 300-steel roller; 400-axis arm.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Accordingly, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, the terms "upper," "lower," "inner," "outer," and the like indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship conventionally put in use of the product of the application, merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

First embodiment

Referring to fig. 1 to 5, an edge material collecting device 001 according to the present embodiment includes two paired shrink wheels 100 and a winding core 200 with a hollow structure; the winding core 200 can be sleeved on the surface of a power structure such as a steel roller 300, two shrinkage wheels 100 are respectively positioned at two ends of the winding core 200, and rim charge 002 can be wound on the outer side of the winding core 200 and clamped between the two shrinkage wheels 100; and the outer diameter of each pinch wheel 100 can be automatically adjusted based on the amount of pressure experienced by pinch wheel 100 (see figures 1 and 2, in particular).

Since the rim charge collecting device 001 is generally sleeved on the cylindrical roller, the cross-section of the inner wall and the outer wall of the default winding core 200 is circular in this embodiment, but this is not to be construed as limiting the present application.

It should be further noted that, in other embodiments, the number of the pinch rollers 100 may be more than two, such as three, four, etc., where the winding cores 200 between adjacent pinch rollers 100 are used for winding the rim charge, and thus "two paired pinch rollers 100" should not be construed as limiting the present application.

In this embodiment, in order to ensure that each pinch roller 100 can automatically adjust the outer diameter based on the amount of pressure applied to the pinch roller 100, the pinch roller 100 has the following specific structure:

as shown in fig. 2, each pinch roller 100 includes an inner ring 120, an outer ring 110, and a plurality of elastic members 130, the inner ring 120 is sleeved outside the winding core 200, the outer ring 110 is formed by surrounding a plurality of groups of support assemblies 111, and one elastic member 130 is disposed between one group of support assemblies 111 and the inner ring 120. The initial state of the elastic members 130 is a compressed state, so that each elastic member 130 has a tendency to move the supporting member 111 away from the inner ring 120, and thus the elastic member 130 can automatically adjust the outer diameter of the pinch roller 100 by the amount of pressure applied to the outer ring 110 (as shown in fig. 4 and 5); when the state of the elastic member 130 is changed to the natural extension state, the tendency of the supporting member 111 to move in a direction away from the inner ring 120 is eliminated, and the outer diameter of the entire pinch roller 100 (i.e., the outer ring 110) reaches a maximum value. Of course, in other embodiments, a telescoping rod, pneumatic device or the like may be used in place of the spring 110 to achieve the effect that the pinch wheel 100 can automatically adjust the outer diameter based on the amount of pressure it is subjected to.

By "multiple sets of support members 111" is meant that the number of support members 111 is not less than two, as an example, the number of support members in the present embodiment is four, and thus the number of elastic members 130 is also four. In addition, in the present embodiment, each elastic member 130 is composed of a telescopic supporting rod 131 and a telescopic spring 132 sleeved outside the telescopic supporting rod 131, so that a large elastic force can be provided, and the whole elastic member 130 is not easily displaced. Of course, in other embodiments, the number of the elastic members 130 may not correspond to the number of the supporting components 111, for example, a group of supporting components 111 may cooperate with a plurality of elastic members 130.

In this embodiment, each group of support assemblies 111 includes a first support plate 112 and a second support plate 113, and the second support plate 113 is movably connected to the first support plate 112 along the circumferential direction of the outer ring 110; one end of each elastic member 130 is fixed to the inner ring 120, the other end is fixed to the second supporting plate 113, and the elastic member 130 in a compressed state has a tendency to move the second supporting plate 113 in a direction away from the inner ring 120, so that a superposition range ("superposition range" refers to a superposition ratio of the second supporting plate 112 and the first supporting plate 112 in the circumferential direction of the outer ring 110) of the second supporting plate 113 can be adjusted. Once the compression force applied to the pinch roller 100 is reduced, the second supporting plate 113 is moved away from the inner ring 120 by the compressed elastic member 130, so that the overlapping range of the first supporting plate 112 and the second supporting plate 113 is reduced, and the whole appearance is that the supporting assembly 111 is expanded and the outer diameter of the pinch roller 100 is increased. If the supporting component 111 is not under the action of pressure at all, the elastic component 130 is in a natural extended state, at this time, the supporting component 111 is expanded to the maximum extent, and the outer diameter of the contracting wheel 100 is also expanded to the maximum extent.

In the outer ring 110, the distance between the second supporting plate 113 and the inner ring 120 is not greater than the distance between the first supporting plate 112 and the inner ring 120, i.e. the second supporting plate 113 is relatively more inward; when the outer diameter of the pinch roller 100 becomes smaller, the second supporting plate 113 is retracted and covered by the first supporting plate 112, and the distance between the second supporting plate 113 and the inner ring 120 is smaller than the distance between the first supporting plate 112 and the inner ring 120; when the outer diameter of the pinch roller 100 increases gradually to the maximum, the second supporting plate 113 will get out of the first supporting plate 112 until it is completely exposed, and the distance between the second supporting plate 113 and the inner ring 120 is equal to the distance between the first supporting plate 112 and the inner ring 120. Also, as an example, the arc lengths and radians of the first and second support pieces 112 and 113 in the present embodiment are completely equal, so that the second support piece 113 can be completely covered by the first support piece 112 and the support assembly 111 can be contracted to the maximum. Of course, in some other possible embodiments, the first supporting piece 112 may be relatively more inward, when the outer diameter of the pinch roller 100 becomes smaller, the first supporting piece 112 may be retracted and covered by the second supporting piece 113, and when the outer diameter of the pinch roller 100 gradually increases to the maximum, the first supporting piece 112 may gradually get out of the coverage of the second supporting piece 113 until it is completely displayed.

In addition, in order to ensure that the outer diameter of the pinch roller 100 can be adjusted correspondingly to the external pressure more quickly and accurately, the second supporting plate 113 in the present embodiment is slidably connected to the first supporting plate 112, and illustratively, in the present embodiment, the first supporting plate 112 in each set of supporting members 111 is provided with a first sliding rail 114, and the second supporting plate 113 is provided with a first sliding groove 115 matched with the first sliding rail 114; the first sliding rail 114 is slidably disposed in the first sliding groove 115. In this embodiment, the arc length of the first sliding rail 114 is smaller than that of the first supporting plate 112, and the arc length of the first sliding groove 115 is also smaller than that of the second supporting plate 113, as shown in fig. 4 and 5. Of course, in other embodiments, instead of using a sliding arrangement, an elastic member such as a spring or a rubber band may be disposed between the first support sheet 112 and the second support sheet 113, and the elastic force may be provided by the compressed elastic member, so that the first support sheet 112 and the second support sheet 113 may move relative to each other.

In this embodiment, the side wall of the winding core 200 is provided with the slits 210 penetrating through the two ends of the winding core 200 along the axial direction, so that the inner diameter of the whole winding core 200 is adjustable, and the winding core is more suitable for being used on the existing slitting machine 003. The reasons are as follows:

in the existing splitting machine 003, devices such as a rotating shaft for providing power (such as the shaft arm 400 mentioned in the later part of the application) can expand when in operation, and the inner diameter can also become large; when the winding core 200 is sleeved on the device, the shaft arm 400 expands, the opening 210 is subjected to the action of external force, the opening degree is increased, and the inner diameter of the winding core 200 is also increased, so that the winding core not only can be matched with a power device, but also can be well clamped with the contraction wheel 100; when the work is completed, the axle arm 400 is deflated, the opening degree of the gap 210 is still unchanged, the whole rim charge collecting device 001 is easily detached from the axle arm 400, after the rim charge collecting device 001 is detached, the winding core 200 is extruded, the opening degree of the gap 210 is reduced, even the gap 210 disappears, so that the rim charge 002 on the winding core 200 is easily removed, and the pinch roller 100 is also easily detached from the winding core 200.

In addition, in the present embodiment, each of the pinch rollers 100 is slidably sleeved at both ends of the winding core 200, so that the distance between the pinch rollers 100 can be more conveniently adjusted, thereby clamping the rim charge 002 with different sizes. As an example, in the present embodiment, the outer wall of the winding core 200 is provided with the second sliding groove 220, the inner ring 120 of each retraction wheel 100 is provided with the second sliding rail 121 corresponding to the second sliding groove 220, so that each retraction wheel 100 can slide on the winding core 200 through the second sliding groove 220 and the second sliding rail 121 until the two retraction wheels 100 are adjusted to a proper distance, and a fixing assembly can be further provided according to actual needs, so as to ensure that the retraction wheels 100 cannot move on the winding core 200 during operation.

In addition, in the present embodiment, a scale mark (not shown) is provided beside the second chute 220 to precisely determine the distance between the two pinch rollers 100.

Second embodiment

Referring to fig. 1 to 6, the present embodiment provides a slitting machine 003, which includes a steel roller 300 and a rim charge collecting device 001 of the first embodiment, wherein the steel roller 300 is disposed in parallel and spaced relative to a winding core 200, and the steel roller 300 is used for contacting with an outer surface of a pinch roller 100 to provide pressure to the pinch roller 100; the splitting machine 003 of the present embodiment further includes an axle arm 400, and the winding core 200 can be sleeved on the outer surface of the axle arm 400.

When the slitter 003 is in operation, the spindle arm 400 can function to provide power so that the winding core 200 can collect and wind the rim charge 002 around the surface. When the rim charge 002 is continuously wound on the surface of the winding core 200, the steel roller 300 is always pressed on the surface of the rim charge 002 to ensure the flatness of the rim charge 002; at this time, the outer diameter of the pinch roller 100 is also compressed by the steel roller 300 and is kept consistent with the collected rim charge 002 diameter until the outer diameter of the pinch roller 100 becomes maximum.

The following describes the operation of the splitting machine 003 in the second embodiment:

firstly, the winding core 200 is sleeved on the axle arm 400, and then the axle arm 400 is inflated to increase the radius of the axle arm 400 (the inflation and the increase of the radius are common technical means, and the application is not repeated here), at this time, the opening degree of the notch 210 of the winding core 200 is increased, the diameter of the winding core 200 is increased, the two shrink wheels 100 are stably fixed on the winding core 200, and the outer rings 110 of the two shrink wheels 100 are compressed by the steel roller 300.

Then the axle arm 400 drives the winding core 200 to synchronously rotate (i.e. no speed difference exists at the moment), and the rim charge 002 is collected between the two shrinkage wheels 100; along with the continuous collection of rim charge 002, the distance between the winding core 200 and the steel roller 300 can be further and further increased, but the steel roller 300 is always pressed on the surface of the rim charge 002 to ensure the flatness of the rim charge 002, and in the process, the pressure of the steel roller 300 to the pinch roller 100 can be further and further reduced, and the outer diameter of the pinch roller 100 can be further and further increased, so that the outer diameter of the pinch roller 100 can be always matched with the diameter of the cylindrical structure formed by the rim charge 002, thereby always playing the role of clamping the rim charge 002 and ensuring that the rim charge 002 is not easy to collapse.

The above is only an example of the present application, and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (11)

1. A rim charge collecting device, characterized in that it comprises:

the roll core is of a hollow structure;

the winding cores between adjacent shrinkage wheels are used for winding the rim charge;

each of the pinch wheels is configured to automatically adjust an outer diameter of the pinch wheel based on an amount of pressure experienced by the pinch wheel.

2. The rim charge collecting device of claim 1, wherein each of the pinch rollers comprises an inner ring, an outer ring and a plurality of elastic members, the inner ring is sleeved outside the winding core, the outer ring is formed by surrounding a plurality of groups of support assemblies, one elastic member is arranged between one group of support assemblies and the inner ring, and the elastic members are configured to automatically adjust the outer diameter of the pinch roller based on the pressure applied to the outer ring.

3. The rim charge collecting apparatus of claim 2, wherein each set of the support members includes a first support piece and a second support piece, the second support piece being movably connected with the first support piece in a circumferential direction of the outer ring;

one end of each elastic piece is fixed to the inner ring, the other end of each elastic piece is fixed to the second supporting piece, and the elastic pieces adjust the overlapping range of the second supporting piece and the first supporting piece in the circumferential direction of the outer ring.

4. The rim charge collecting device of claim 3, wherein the second support piece is slidably connected to the first support piece to adjust the overlapping range of the second support piece and the first support piece.

5. The rim charge collecting device of claim 4, wherein the second support tab is no greater than the first support tab.

6. The rim charge collection apparatus of claim 3, wherein in each set of the support assemblies, the arc length and arc of the first support sheet and the second support sheet are equal.

7. The rim charge collecting device according to claim 1, wherein a gap penetrating through both ends of the winding core in an axial direction is formed in a side wall of the winding core.

8. The rim charge collecting device of claim 1, wherein each of the pinch rollers is slidably fitted over the winding core to adjust a distance between two adjacent pinch rollers.

9. The rim charge collecting device according to claim 1 or 8, wherein a second sliding groove is provided on an outer wall of the winding core, and a second sliding rail corresponding to the second sliding groove is provided on an inner ring of each of the shrink wheels.

10. A slitting machine comprising a steel roller and a rim charge collecting device according to any one of claims 1 to 9, the steel roller being spaced parallel to the winding core and being arranged to contact the outer surface of the pinch roller to provide pressure to the pinch roller.

11. The slitter machine according to claim 10, further comprising an axle arm, wherein the winding core of the edge collecting device is capable of being sleeved on an outer surface of the axle arm.