CN116161468A

CN116161468A - Taper adjustable roller and belt conveying device

Info

Publication number: CN116161468A
Application number: CN202111414886.0A
Authority: CN
Inventors: 阳超; 颜永富; 孙祥立; 李丰丹; 陈朝浪; 崔凯; 杨国众
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-05-26
Also published as: EP4357281A1; WO2023093434A1

Abstract

The application relates to the technical field of belt conveying, in particular to a taper adjustable roller and a belt conveying device. The taper adjustable roller comprises a supporting shaft, a supporting sheet and a first pushing piece; the plurality of support sheets are arranged around the circumference of the support shaft, the circumferential surfaces of one sides of the plurality of support sheets, which are far away from the support shaft, are combined to form a roller surface, and the support sheets are provided with a first end and a second end along the axial direction of the support shaft; the supporting piece can do swinging motion relative to the supporting shaft; the first pushing piece is arranged on the supporting shaft and is used for pushing the first ends of the supporting pieces in the general radial direction so that the first ends are close to the supporting shaft and the second ends are far away from the supporting shaft, or the first ends are far away from the supporting shaft and the second ends are close to the supporting shaft, and therefore the diameter of the roller surface is gradually changed from the first ends to the second ends. The roll surface taper of the taper adjustable roll can be adjusted according to the tightness of two sides of a strip, and the tension difference of two sides of the strip can be reduced when the strip passes through the roll surface, so that the conditions of strip wrinkling and tearing deformation are reduced.

Description

Taper adjustable roller and belt conveying device

Technical Field

The embodiment of the application relates to the technical field of belt conveying, in particular to a taper adjustable roller and a belt conveying device.

Background

The battery manufacturing industry, the paper making industry, the coating industry and the like all need to use roller parts, and the roller parts can be used for winding the belt materials and conveying the belt materials.

In the conveying process of the belt materials, the belt materials often have wrinkling phenomenon in the conveying process due to tension difference between the left side and the right side of the belt materials or difference in equipment debugging, namely, the two sides of the belt materials in the width direction are inconsistent in tightness, the belt materials can be wrinkled on the looser side, or the belt materials are torn or deformed on the tighter side.

Disclosure of Invention

In view of the above, embodiments of the present application provide a taper adjustable roller and a belt conveying device, where the taper of the roller surface of the taper adjustable roller can be adjusted according to the tightness of two sides of a belt material, when the belt material passes through the roller surface, one end with a larger roller surface diameter corresponds to one side of the belt material, and one end with a smaller roller surface diameter corresponds to one side of the belt material, so as to reduce the tension difference of two sides of the belt material, and reduce the occurrence of wrinkling and tearing deformation of the belt material.

According to one aspect of an embodiment of the present application, there is provided a taper adjustable roller including a support shaft, a support sheet, and a first urging member; the plurality of support sheets are arranged around the circumference of the support shaft, the circumferential surfaces of one sides of the plurality of support sheets, which are far away from the support shaft, are combined to form a roller surface, and the support sheets are provided with a first end and a second end along the axial direction of the support shaft; the supporting piece can do swinging motion relative to the supporting shaft; the first pushing piece is arranged on the supporting shaft and is used for pushing the first ends of the supporting pieces in the general radial direction so that the first ends are close to the supporting shaft and the second ends are far away from the supporting shaft, or the first ends are far away from the supporting shaft and the second ends are close to the supporting shaft, and therefore the diameter of the roller surface is gradually changed from the first ends to the second ends.

Through adopting above-mentioned scheme, when this tapering adjustable roller was used for conveying the strip, can be with the great one end of roll surface diameter be used for contacting the less one side of strip, the less one end of roll surface diameter is used for contacting the less one side of strip, the area of contact between the less one side of strip and the roll surface is great, the area of contact of less one side of tighter and roll surface is less, thereby make the less one side of strip be strained on tapering adjustable roller, balance the elasticity of strip width direction both sides, reduce the tension difference of strip both sides, thereby reduce the emergence of strip wrinkling and tearing deformation's problem.

In some embodiments, the adjustable taper roller further comprises a polymeric member that squeezes and/or tightens the support sheet in a direction toward the support shaft such that the plurality of support sheets have a tendency to draw toward the support shaft.

Through adopting above-mentioned scheme, the polymer makes a plurality of backing plates have the trend towards the back shaft drawing close to prevent to receive the top of first top pushing away from between a plurality of backing plates and the back shaft between breaking away from, thereby scatter, ensured the structural integrity and the stability of tapering adjustable roller.

In some embodiments, the adjustable taper roller further comprises a second pusher for supporting the second ends of the plurality of support tabs in a generally radial direction.

Through adopting above-mentioned scheme, through the cooperation of first top pushing away the piece and the second top pushing away the piece for the roll surface diameter of tapering adjustable roller can be adjusted as required to from first end to second end reduce gradually, perhaps from first end to second end increase gradually, with under the prerequisite of not changing the mounted position and the direction of tapering adjustable roller, make tapering adjustable roller can be used for carrying out the elasticity regulation of both sides to the strip of different tension condition, tapering adjustable roller's adaptability is stronger, the range of application is wider, it is also more convenient to use.

In some embodiments, the support plate is provided with a swing support portion, and the swing support portion cooperates with the support shaft to support the support plate to swing on the support shaft around the swing support portion.

By adopting the scheme, the supporting piece swings around the swinging supporting part on the supporting shaft as a fulcrum, so that the swinging range and the swinging amplitude of the supporting piece are more controllable, and the taper adjustable roller is convenient to apply in actual production.

In some embodiments, the taper adjustable roller further includes a limiting portion disposed on the support shaft for limiting the swing support portion from swinging within a range defined by the limiting portion.

Through adopting above-mentioned scheme, swing supporting part and spacing portion cooperation for the supporting plate drives the swing supporting part and can only swing in the within range that spacing portion prescribes a limit to, further improves the controllability of the swing scope and the swing range of supporting plate.

In some embodiments, the limiting portion includes a groove provided on the support shaft, and a portion of the swing support swings within the groove.

By adopting the scheme, the groove limits the position of the swinging support part on the support shaft, so that when the support piece is pushed by the first pushing piece or the second pushing piece, the swinging support part swings in the groove and is not easy to break away from the groove to move along the axial direction of the support shaft, and the position of the roll surface formed by the support piece on the axial direction of the taper adjustable roll shaft is generally unchanged, so that the belt is conveyed on a fixed path.

In some embodiments, the portions of the swing support and the groove that contact each other are arc-shaped.

By adopting the scheme, the swing of the swing support part in the groove is smoother and more stable.

In some embodiments, the first pushing member includes a first pushing conical surface, an axial direction of the first pushing conical surface is parallel to an axis of the support shaft, and the first pushing member moves along the axial direction of the support shaft, so that the first end of the support piece is in sliding contact with the first pushing conical surface and is pushed by the first pushing conical surface to be close to or far from the support shaft.

Through the adoption of the scheme, when the first pushing piece moves along the axial direction of the supporting shaft and the supporting piece does not move along the axial direction of the supporting shaft, the first pushing conical surface can convert the movement of the first pushing piece along the axial direction of the supporting shaft into the swing of the supporting piece, namely, when the first pushing piece moves along the axial direction of the supporting shaft, the first pushing conical surface slides relative to the supporting piece so that the first end of the supporting piece is gradually close to or far away from the supporting shaft.

In some embodiments, the supporting piece is provided with a first adjusting part protruding towards the first pushing piece, the first adjusting part is provided with a first contact surface, and the first contact surface is in sliding contact with the first pushing conical surface.

By adopting the scheme, the supporting piece and the first pushing piece realize relative movement through the sliding contact of the first contact surface and the first pushing conical surface, so that the respective stress surfaces of the supporting piece and the first pushing piece are larger and the abrasion between the supporting piece and the first pushing piece is smaller in the relative movement process.

In some embodiments, the first pushing member is screwed with the support shaft in an axial direction of the support shaft.

Through adopting above-mentioned scheme, when first pushing away from the piece and rotate around the back shaft, can adjust the position of first pushing away from the piece in the axis direction of back shaft to make first pushing away from the first end that the piece pushed away from the back shaft of first pushing away from the piece, and when first pushing away from the piece and remove to optional position, can carry out the auto-lock through threaded connection, consequently can not take place to remove under the extrusion of back plate, ensure the stability of the roll surface tapering that the back plate formed.

In some embodiments, the second pushing member includes a second pushing conical surface, an axial direction of the second pushing conical surface is parallel to an axis of the support shaft, and the second pushing member moves along the axial direction of the support shaft, so that the second end of the support piece is in sliding contact with the pushing conical surface.

By adopting the scheme, when the second pushing piece moves along the axial direction of the supporting shaft and the supporting piece does not move along the axial direction of the supporting shaft, the movement of the second pushing piece along the axial direction of the supporting shaft can be converted into the radial swing of the supporting piece along the supporting shaft through the second pushing conical surface, namely, when the second pushing piece moves along the axial direction of the supporting shaft, the second pushing conical surface slides relative to the supporting piece, so that the second end of the supporting piece is gradually close to or far away from the supporting shaft.

In some embodiments, the supporting piece is provided with a second adjusting part protruding towards the second pushing piece, the second adjusting part is provided with a second contact surface, and the second contact surface is in sliding contact with the second pushing conical surface.

By adopting the scheme, the supporting piece and the second pushing piece realize relative movement through the sliding contact of the second contact surface and the second pushing conical surface, so that the respective stress surfaces of the supporting piece and the second pushing piece are larger and the abrasion between the supporting piece and the second pushing piece is smaller in the relative movement process.

In some embodiments, the support sheet includes a roll surface forming portion and a locating portion, at least a portion of a surface of the roll surface forming portion being configured to form a roll surface; the positioning part is positioned on the radial inner side of the roll surface forming part; the two ends of the supporting shaft are provided with stop parts which are matched with the positioning parts to limit the axial movement of the supporting piece.

Through adopting above-mentioned scheme, the backstop portion can be at the axial of back shaft upwards location backing sheet for every backing sheet can only swing in the within range that backstop portion prescribes a limit to, and under the effect of first pushing away or second pushing away, the backing sheet is difficult to along the axial displacement of back shaft, and the structure of tapering adjustable roller is more stable, and the roll surface that a plurality of backing sheets formed is more regular, and the controllability of roll surface tapering is stronger.

In some embodiments, the support shaft includes an inner shaft and an outer shaft, the outer shaft having a through hole along an axial direction thereof, the inner shaft being disposed in the through hole and rotatably supporting the outer shaft, and the support tab being coupled to the outer shaft.

Through adopting above-mentioned scheme, the interior axle can be used for the fixed of tapering adjustable roller and external equipment, through making interior axle rotation support outer axle for under the circumstances of interior axle and external equipment fixed connection, the outer axle can rotate in order to convey the strip around interior axle under the friction of strip, and reduces the tearing to the strip, prevents to cause the damage to the strip.

In some embodiments, the first pusher is disposed between the outer shaft and the inner shaft, and at least a portion of the support tab extends through a sidewall of the outer shaft into sliding contact with the first pusher.

Through adopting above-mentioned scheme, first ejector sleeve spare sets up between interior axle and outer axle, so can not occupy the space between back shaft and the backing sheet for the backing sheet can carry out the taper adjustment of a greater scope in the back shaft outside.

According to another aspect of embodiments of the present application, there is provided a belt conveying apparatus comprising a taper adjustable roller according to any of the embodiments of the subject matter described above.

By adopting the scheme, the tightness of the two sides of the strip in the conveying process can be adjusted through the taper adjustable roller, so that the problems of wrinkling, deformation and tearing of the strip are reduced.

According to the embodiment of the application, the plurality of supporting pieces are pushed by the first pushing piece, the roller surface diameter formed by the plurality of supporting pieces is gradually changed from the first end to the second end to form the conical surface, when the conical adjustable roller is used for conveying a belt material, one end with the larger roller surface diameter can be used for contacting one side with the loose belt material, one end with the smaller roller surface diameter is used for contacting one side with the loose belt material, the contact area between one side with the loose belt material and the roller surface is larger, the contact area between one side with the loose belt material and the roller surface is smaller, so that one side with the loose belt material is tensioned on the conical adjustable roller, the tightness of two sides of the width direction of the belt material is balanced, the tension difference of two sides of the belt material is reduced, and therefore the occurrence of wrinkling and tearing deformation of the belt material is reduced.

The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following detailed description of the present application will be presented in order to make the foregoing and other objects, features and advantages of the embodiments of the present application more understandable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of a taper adjustable roller according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a taper adjustable roller in a first state in an embodiment of the present application.

Fig. 3 is a cross-sectional view of a taper adjustable roller in a second state in an embodiment of the present application.

Fig. 4 is an exploded view of a taper adjustable roller in an embodiment of the present application.

Fig. 5 is a cross-sectional view of a taper adjustable roll in another embodiment of the present application.

Fig. 6 is a cross-sectional view of a taper adjustable roll in yet another embodiment of the present application.

Fig. 7 is a cross-sectional view of a taper adjustable roll in yet another embodiment of the present application.

Fig. 8 is a schematic structural view of a first pushing member according to an embodiment of the present application.

Fig. 9 is an enlarged view of a portion a in fig. 3.

Fig. 10 is a schematic structural view of a second pushing member according to an embodiment of the present application.

Fig. 11 is an enlarged view of a portion B in fig. 6.

Fig. 12 is a schematic structural view of a supporting sheet according to an embodiment of the present application.

Fig. 13 is a cross-sectional view of a support shaft in an embodiment of the present application.

Fig. 14 is a schematic structural view of a support shaft according to an embodiment of the present application.

Reference numerals illustrate: 1. a support shaft; 11. a limit part; 111. a groove; 12. a positioning groove; 13. an inner shaft; 14. an outer shaft; 141. a through hole; 15. a bearing; 16. a stop portion; 2. a support sheet; 21. a first end; 22. a second end; 23. a swing support portion; 24. a first adjusting part; 241. a first contact surface; 25. a roll surface forming part; 26. a positioning part; 27. a second adjusting part; 271. a second contact surface; 3. a roll surface; 4. a first pushing member; 41. a first pushing conical surface; 5. a polymeric member; 6. a second pushing member; 61. and a second pushing conical surface.

Detailed Description

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. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

The terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the drawings are intended to cover, but not exclude, other matters. The word "a" or "an" does not exclude the presence of a plurality.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The directional terms appearing in the following description are all directions shown in the drawings and are not intended to limit the specific structure of the adjustable taper roll or the belt conveyor of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being 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 in the description and in the claims of the present application or in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order, and may be used to expressly or implicitly include one or more such features.

In the description of the present application, unless otherwise indicated, the meaning of "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two).

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., the terms "connected" or "coupled" of a mechanical structure may refer to a physical connection, e.g., the physical connection may be a fixed connection, e.g., by a fastener, such as a screw, bolt, or other fastener; the physical connection may also be a detachable connection, such as a snap-fit or snap-fit connection; the physical connection may also be an integral connection, such as a welded, glued or integrally formed connection. "connected" or "connected" of circuit structures may refer to physical connection, electrical connection or signal connection, for example, direct connection, i.e. physical connection, or indirect connection through at least one element in the middle, so long as circuit communication is achieved, or internal communication between two elements; signal connection may refer to signal connection through a medium such as radio waves, in addition to signal connection through a circuit. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

The strips commonly used in production comprise paper, cloth, plastic films, battery pole pieces, battery isolating films and the like, and the strips need to be transferred from one process to another process in the production process, or need to be unreeled, transferred and rolled in the same process, and the corresponding operation is carried out in the transfer process.

Taking battery manufacturing as an example, the pole piece of the battery needs to be subjected to various working procedures such as coating, cold pressing, die cutting, slitting, winding and the like in the production process, and each working procedure needs to be carried out in the conveying process. However, during the production process, it is found that the pole pieces often become wrinkled, deformed or torn.

The inventors have found that this is because it is often unavoidable that the sheet is conveyed in the longitudinal direction with a difference in tension on both sides in the width direction. And just because there is tension difference in pole piece both sides, lead to the strip to be inconsistent in the both sides elasticity of conveying in-process, at the loose one side, the pole piece can appear the fold, and at the tight one side, the pole piece appears deformation and even tear owing to the atress is great.

In view of the above, embodiments of the present application provide a taper adjustable roller, where the taper of the roller surface of the taper adjustable roller may be adjusted according to the tightness of two sides of a strip, when the strip passes through the roller surface, one end with a larger roller surface diameter corresponds to one side of the strip, and one end with a smaller roller surface diameter corresponds to one side of the strip, so as to reduce the tension difference of two sides of the strip, and reduce the occurrence of wrinkling and tearing deformation of the strip.

As shown in fig. 1, 2, 3 and 4, the taper adjustable roller provided in the embodiment of the present application includes a support shaft 1, a support sheet 2 and a first pushing member 4; the support plates 2 are arranged in a plurality around the circumference of the support shaft 1, the circumferential surfaces of one side, far away from the support shaft 1, of the support plates 2 are combined to form a roller surface 3, and the support plates 2 are provided with a first end 21 and a second end 22 along the axial direction of the support shaft 1; the supporting sheet 2 can do swinging motion relative to the supporting shaft 1; the first pushing member 4 is provided on the support shaft 1 for pushing the first ends 21 of the plurality of support pieces 2 in a substantially radial direction so that the first ends 21 are close to the support shaft 1 and the second ends 22 are away from the support shaft 1, or so that the first ends 21 are away from the support shaft 1 and the second ends 22 are close to the support shaft 1, whereby the diameter of the roll surface 3 is gradually changed from the first ends 21 to the second ends 22.

The whole supporting shaft 1 is in a shaft rod shape, and can be an integral piece or an assembly piece, and the supporting shaft 1 provides support and positioning for the plurality of supporting pieces 2, so that the plurality of supporting pieces 2 can be distributed by taking the supporting shaft 1 as the center and gathered or dispersed by taking the supporting shaft 1 as the center. The support shaft 1 can also be used to fix the adjustable taper roller to an external device, such as a frame of a strip conveying device.

The number of the supporting sheets 2 is plural and the supporting sheets are arranged around the circumference of the supporting shaft 1, and in fig. 4, only part of the supporting sheets 2 is shown for the sake of easy viewing of the structures of the supporting sheets 2, it is understood that in practical use, the number of the supporting sheets 2 is more and the arrangement is more dense, and in the case that the distances between the sides of the supporting sheets 2 far from the supporting shaft 1 and the supporting shaft 1 are approximately equal, the connection line of the sides of the supporting sheets 2 far from the supporting shaft 1 can form a closed polygon, and when the number of the supporting sheets 2 is enough, the polygon can be approximately a circle, that is, the sides of the supporting sheets 2 far from the supporting shaft 1 are combined to form a structure similar to a cylindrical surface to be used as the roll surface 3.

The first pushing member 4 is configured to push the first ends 21 of the plurality of support pieces 2 in a substantially radial direction, the pushing direction may be a direction toward the support shaft 1 in the substantially radial direction so that the first ends 21 are close to the support shaft 1 and the second ends 22 are away from the support shaft 1, or a direction away from the support shaft 1 in the substantially radial direction so that the first ends 21 are away from the support shaft 1 and the second ends 22 are close to the support shaft 1. The substantially radial direction refers to a direction which is different from the radial direction of the support shaft 1 by 90 ° or less.

In order to form the cylindrical or conical roller surface 3 between the plurality of support plates 2 all the time, the first pushing member 4 needs to be capable of pushing the plurality of support plates 2 simultaneously, and the plurality of support plates 2 generate substantially the same displacement in the radial direction where each support plate is located, and on the basis of meeting the condition, the shape and structure of the first pushing member 4 may be arbitrarily selected, which is not limited in the embodiment of the present application.

It should be noted that the first pushing member 4 is not limited to pushing the first end 21 of the supporting sheet 2 by contacting with the end of the first end 21 of the supporting sheet 2, and the first pushing member 4 may contact with any position of the supporting sheet 2 along the length direction within a half length range close to the first end 21 to achieve the purpose of pushing the first ends of the plurality of supporting sheets 2.

When the distance between the different positions of the plurality of supporting sheets 2 and the supporting shaft 1 is changed, the diameter of the roller surface 3 is also changed, when the distance between the different positions of the plurality of supporting sheets 2 and the supporting shaft 1 is different, the diameters of the roller surfaces 3 at the corresponding positions of the different positions are also different, by utilizing the principle, the distance between the supporting sheets 2 and the supporting shaft 1 is controlled through the first pushing piece 4, so that the diameter of the roller surface 3 is changed, when the first pushing piece 4 only pushes the first end 21 of the supporting sheet 2, the diameter of the first end 21 can be changed, so that the diameter of the roller surface 3 in the direction from the first end 21 to the second end 22 is changed, namely the roller surface 3 is tapered, and the taper of the roller surface 3 is adjusted through the first pushing piece 4, so that the tension difference of two sides of the width direction of a strip is adapted. In fig. 2, the taper adjustable roller is in an initial state, in which the first pushing member 4 has not pushed the supporting pieces 2 outwards or inwards, so that the roller surface 3 of the taper adjustable roller presents a column shape, fig. 3 shows a state after the first pushing member 4 pushes the first ends of the plurality of supporting pieces 2 outwards, in which the roller surface 3 of the taper adjustable roller gradually reduces in diameter from the first end 21 to the second end 22 to present a conical surface.

By adopting the scheme, when the taper adjustable roller is used for conveying a belt material, the belt material can wrap the roller surface 3 of the taper adjustable roller, wherein one end with larger diameter of the roller surface 3 is used for contacting one side with the belt material which is looser, one end with smaller diameter of the roller surface 3 is used for contacting one side with the belt material which is looser, under the condition that the wrap angle between the width direction of the belt material and the roller surface 3 is basically unchanged, the contact area between the looser side of the belt material and the roller surface 3 is larger, and the contact area between the looser side and the roller surface 3 is smaller, so that one side with the belt material which is looser is tensioned on the taper adjustable roller, the tightness of two sides of the width direction of the belt material is balanced, and the tension difference of two sides of the belt material is reduced, thereby reducing the occurrence of the problems of wrinkling and tearing deformation of the belt material.

As shown in fig. 5, in some embodiments, the adjustable taper roller further includes a polymeric member 5, the polymeric member 5 pressing and/or tensioning the support sheet 2 in a direction toward the support shaft 1 such that the plurality of support sheets 2 have a tendency to draw toward the support shaft 1.

The polymer 5 may be disposed on a side of the plurality of support plates 2 away from the support shaft 1, for example, as shown in fig. 5, the polymer 5 is an elastic rubber sleeve, the elastic rubber sleeve is sleeved on the outer sides of the plurality of support plates 2 from the roll surface 3, and the plurality of support plates 2 gather towards the middle under the extrusion action of the elastic rubber sleeve. The elastic rubber sleeve can be made of rubber, plastic, silica gel, resin material and the like. The elastic rubber sleeve can be sleeved at a local position of the supporting sheets 2, such as the end parts of the supporting sheets 2, the middle of the supporting sheets 2 and the like, and can be wider, so that the elastic rubber sleeve is sleeved on the whole roller surface 3, can be used for extruding a plurality of supporting sheets 2 towards the middle, can also cover gaps between adjacent supporting sheets 2, and can prevent the strip from being clamped in the gaps between the adjacent supporting sheets 2.

The polymer 5 may also be disposed on a side of the plurality of support plates 2 near the support shaft 1, for example, the polymer 5 is a spring, the spring is provided with a plurality of springs, each spring is respectively connected with the support shaft 1 and one support plate 2, and the support plates 2 have a tendency to approach the support shaft 1 under the action of the tension of the springs. Of course, the polymer 5 may also be a tension band, an elastic adhesive tape, etc., which is not limited in this embodiment.

The polymer 5 gathers the plurality of support plates 2 toward the support shaft 1 without the effect of external force, thereby forming a cylinder or a cylinder-like, cone-like or cone-like structure around the support shaft 1 which is compact and has a small diameter. When the first pushing member 4 pushes the plurality of supporting pieces 2 in a direction away from the supporting shaft 1, the polymer member 5 provides a force for the plurality of supporting pieces 2 to approach the supporting shaft 1 to resist the pushing force of the first pushing member 4, so that the plurality of supporting pieces 2 can still maintain structural integrity at a position away from the supporting shaft 1, the plurality of supporting pieces 2 are prevented from being separated from the supporting shaft 1 and dispersed, and structural integrity and stability of the taper adjustable roller are ensured. When the first pushing piece 4 cancels the pushing force to each supporting piece 2 or reduces the pushing force to each supporting piece 2, the supporting pieces 2 gather towards the supporting shaft 1 under the action of the polymerization piece 5 to reduce the taper of the roller surface 3, so that the purpose that the taper of the taper adjustable roller can be flexibly adjusted is achieved.

As shown in fig. 6, in some embodiments, the adjustable taper roller further includes a second pusher 6, the second pusher 6 for supporting the second ends 22 of the plurality of support tabs 2 in a generally radial direction.

The structure of the second pushing member 6 is the same as or similar to that of the first pushing member 4, and the description of the first pushing member 4 in this embodiment of the present application may be applied to the second pushing member 6, so that the structure and effect of the second pushing member 6 in this embodiment of the present application are not repeated.

It should be noted that the second pushing member 6 is not limited to pushing the second end 22 of the supporting sheet 2 by contact with the end of the second end 22 of the supporting sheet 2, and the second pushing member 6 may be in contact with any position of the supporting sheet 2 in a range of half the length in the length direction near the second end 22.

According to the scheme, the diameters of the roller surfaces 3 of the taper adjustable rollers can be adjusted to be gradually reduced from the first end 21 to the second end 22 or gradually increased from the first end 21 to the second end 22 according to the requirements through the matching of the first pushing piece 4 and the second pushing piece 6, so that the taper adjustable rollers can be used for adjusting the tightness of two sides of the belt materials under different tension conditions on the premise that the installation positions and directions of the taper adjustable rollers are not changed, in addition, through the matching of the first pushing piece 4 and the second pushing piece 6, the roller surfaces 3 of the taper adjustable rollers can form conical surfaces with different tapers, the roller surfaces 3 of the taper adjustable rollers can form cylindrical surfaces with different diameters, the adaptability of the taper adjustable rollers is stronger, the application range is wider, and the use is more convenient.

As shown in fig. 6 and 7, in some embodiments, the support piece 2 is provided with a swing support portion 23, and the swing support portion 23 cooperates with the support shaft 1 to support the support piece 2 to swing on the support shaft 1 around the swing support portion 23.

The swing support 23 may be a protrusion provided on the support sheet, and the protrusion may abut against the support shaft 1, or may be connected to the support shaft 1 by a hinge so that the support sheet 2 can swing on the support shaft 1 around the swing support 23.

By adopting the scheme, the supporting plate 2 swings on the supporting shaft 1 around the swinging supporting part 23 serving as a fulcrum, so that the swinging range and the swinging amplitude of the supporting plate 2 are more controllable, and the taper adjustable roller is convenient to apply in actual production.

As shown in fig. 6 and 7, in some embodiments, the taper adjustable roller further includes a limiting portion 11, where the limiting portion 11 is disposed on the support shaft 1, for limiting the swing of the swing support portion 23 within a range defined by the limiting portion 11.

The limiting part 11 may be a concave structure arranged on the support shaft 1, or may be a hole or a groove arranged on the support shaft 1 and used for hinging with the swinging support part 23; the limiting part 11 may be integrally formed with the support shaft 1 or may be a part additionally connected to the support shaft 1, however, the limiting part 11 may also be a flexible member such as a rope, and one end of the flexible member is connected to the support shaft 1, and the other end of the flexible member is connected to the swinging support part 23, so that the swinging support part 23 is limited to swing within a range limited by the flexible member, and the swinging range and the controllability of the swinging amplitude of the support sheet 2 are further improved.

As shown in fig. 6, the limit portion 11 may be provided in the middle of the support shaft 1 in the axial direction; as shown in fig. 7, the limiting portion 11 may be adjacent to an end portion of either end of the support shaft 1.

It should be noted that, as shown in fig. 6, the matching structure of the swinging support portion 23 and the limiting portion 11 may be disposed in the middle of the taper adjustable roller along the length direction, as shown in fig. 7, the matching structure of the swinging support portion 23 and the limiting portion 11 may also be disposed at a position near any end of the taper adjustable roller along the length direction.

As shown in fig. 6 and 7, in some embodiments, the limiting portion 11 includes a groove 111 provided on the support shaft 1, and a portion of the swing support portion 23 swings within the groove 111.

The groove 111 is a structure recessed from the surface of the support shaft 1, and the groove 111 can be formed by removing material from the support shaft 1, so that the limiting part 11 does not occupy the space outside the surface of the support shaft 1.

When a part of the swinging support part 23 swings in the groove 111, the inner wall of the groove 111 is abutted against the part of the swinging support part 23 located in the groove 111, and the groove 111 provides resistance for the swinging support part 23, so that when the support piece 2 is pushed by the first pushing piece 4 or the second pushing piece 6, the swinging support part 23 swings in the groove 111 and is not easy to break away from the groove 111 to move along the axial direction of the support shaft 1, and the position of the roll surface 3 formed by the support piece 2 in the axial direction of the taper adjustable roll shaft is generally unchanged, so that the strip is conveyed on a fixed path.

As shown in fig. 6 and 7, in some embodiments, the portions of the swing support 23 and the groove 111 that are in contact are each arc-shaped.

When the swing support 23 swings with the support piece 2 to rotate in the groove 111, the surface of the swing support 23 contacting with the groove 111 is smoother, the rotation resistance is smaller, and the swing of the swing support 23 in the groove 111 is smoother.

As shown in fig. 8 and 9, in some embodiments, the first pushing member 4 includes a first pushing conical surface 41, the axial direction of the first pushing conical surface 41 is parallel to the axial direction of the support shaft 1, and the first pushing member 4 moves along the axial direction of the support shaft 1, so that the first end 21 of the support piece 2 is in sliding contact with the first pushing conical surface 41 and is pushed by the first pushing conical surface 41 to approach or separate from the support shaft 1.

By adopting the above scheme, when the first pushing member 4 moves along the axial direction of the support shaft 1 and the support piece 2 does not move along the axial direction of the support shaft 1, the first pushing conical surface 41 is provided, so that the movement of the first pushing member 4 along the axial direction of the support shaft 1 can be converted into the swing of the support piece 2, namely, when the first pushing member 4 moves along the axial direction of the support shaft 1, the first pushing conical surface 41 slides relative to the support piece 2, so that the first end 21 of the support piece 2 is gradually close to or far away from the support shaft 1.

Because the axial direction of the first pushing conical surface 41 is parallel to the axial direction of the support shaft 1, when the axial direction of the first pushing conical surface 41 is coincident with the axial direction of the support shaft 1, the distance between the generatrix of the first pushing conical surface 41 and the axial direction of the support shaft 1 is equal, and when the first pushing piece 4 moves along the axial direction of the support shaft 1, the first pushing conical surface 41 can drive each support piece 2 to simultaneously perform swing motion with equal or similar amplitude, so that a plurality of support pieces 2 can form a relatively neat conical surface at any angle.

As shown in fig. 9, in some embodiments, the supporting piece 2 is provided with a first adjusting portion 24 protruding toward the first pushing member 4, where the first adjusting portion 24 has a first contact surface 241, and the first contact surface 241 is in sliding contact with the first pushing conical surface 41.

The first adjusting portion 24 protrudes toward the support shaft 1, and the first contact surface 241 is located on an end surface of the first adjusting portion 24 near one end of the support shaft 1, and the first contact surface 241 may be a partial area of the end surface or may be the entire end surface.

The first contact surface 241 may be an inclined surface or an arc surface, and when the first contact surface 241 is an inclined surface, the inclination direction of the first contact surface 241 is substantially the same as the inclination direction of the first pushing conical surface 41, which means that the first pushing conical surface 41 gradually approaches the support shaft 1 from the first end 21 to the second end 22, and the inclined surface on the support sheet 2 gradually approaches the support shaft 1 from the first end 21 to the second end 22, and the inclination degree of the first pushing conical surface 41 and the inclination degree of the inclined surface are not particularly limited. When the first contact surface 241 is an arc surface, the axis of the arc surface is located on the side of the arc surface away from the support shaft 1.

Although the relative angle between the first contact surface 241 and the first pushing conical surface 41 will change during the movement of the first pushing member 4 along the axis of the support shaft 1, the contact area between the support sheet 2 and the first pushing member 4 and the impact of the support sheet 2 and the first pushing member 4 during the movement of the support sheet 2 and the first pushing member 4 can be increased by the cooperation of the first contact surface 241 and the first pushing conical surface 41, so that the abrasion between the support sheet 2 and the first pushing member 4 is reduced.

As shown in fig. 9, in some embodiments, the first urging member 4 is screwed with the support shaft 1 in the axial direction of the support shaft 1.

Through adopting above-mentioned scheme, when first top pushing element 4 rotates relative back shaft 1, can adjust the position of first top pushing element 4 in the axis direction of back shaft 1 to make first top pushing element 4 push away from the first end 21 of backing plate 2 and be close to or keep away from back shaft 1, and when first top pushing element 4 moves to arbitrary position, can carry out the auto-lock through threaded connection, consequently can not take place to remove under the extrusion of backing plate 2, ensure the stability of the roll surface 3 tapering that backing plate 2 formed.

In addition, when the first contact surface 241 coincides with the axis of the support shaft 1, and when the axis of the threaded connection coincides with the axis of the support shaft 1, the distance between the first contact surface 241 and the axis of the support shaft 1 in all directions is equal or substantially equal during the rotation of the first pushing member 4 relative to the support shaft 1, so that the inclination angles of the plurality of support plates 2, which control the inclination angle through the first contact surface 241, from the first end 21 to the second end 22 are equal or substantially equal, that is, the inclination angles of the first pushing member 4 pushing each support plate 2 from the first end 21 to the second end 22 are equal during the movement, so that the plurality of support plates 2 form a relatively regular tapered roller surface 3.

As shown in fig. 10 and 11, in some embodiments, the second pushing member 6 includes a second pushing conical surface 61, and an axial direction of the second pushing conical surface 61 is parallel to an axis of the support shaft 1, and the second pushing member 6 moves along the axial direction of the support shaft 1, so that the second end 22 of the support piece 2 is in sliding contact with the pushing conical surface.

The possible structure and function of the second pushing cone 61 is the same as or similar to that of the first pushing cone 41, and this embodiment will not be described again.

By adopting the above scheme, when the second pushing member 6 moves along the axial direction of the support shaft 1 and the support piece 2 does not move along the axial direction of the support shaft 1, the movement of the second pushing member 6 along the axial direction of the support shaft can be converted into the swing of the support piece 2 through the second pushing conical surface 61, that is, when the second pushing member 6 moves along the axial direction of the support shaft 1, the second pushing conical surface 61 slides relative to the support piece 2, so that the second end 22 of the support piece 2 gradually approaches or gets away from the support shaft 1.

As shown in fig. 11, in some embodiments, the supporting piece 2 is provided with a second adjusting portion 27 protruding toward the second pushing member 6, where the second adjusting portion 27 has a second contact surface 271, and the second contact surface 271 is in sliding contact with the second pushing conical surface 61.

The possible structure and function of the second adjusting portion 27 are the same as or similar to those of the first adjusting portion 24, and the possible structure and function of the second contact surface 271 are the same as or similar to those of the first contact surface 241, and reference is specifically made to the description of the related embodiments of the first adjusting portion 24 and the first contact surface 241, which will not be repeated herein.

By adopting the scheme, the supporting piece 2 and the second pushing piece 6 realize relative movement through the sliding contact of the second contact surface 271 and the second pushing conical surface 61, so that the respective stress surfaces are larger and the abrasion between the supporting piece 2 and the second pushing piece 6 is smaller in the relative movement process.

As shown in fig. 12 and 13, in some embodiments, the support sheet 2 includes a roll surface forming portion 25 and a positioning portion 26, at least a part of the surface of the roll surface forming portion 25 being used to form the roll surface 3; the positioning portion 26 is located radially inward of the roll surface forming portion 25; the two ends of the support shaft 1 are provided with stop parts 16, and the stop parts 16 are matched with the positioning parts 26 to limit the axial movement of the support sheet 2.

The roll surface forming portion 25 extends along the length direction of the taper adjustable roll, the portion of the roll surface forming portion 25 for forming the roll surface 3 may be a plane or a curved surface, and when the plurality of roll surface forming portions 25 are uniformly arranged, a shape similar to a cylindrical surface or a conical surface is formed between the plurality of roll surface forming portions 25.

The length and width of the positioning parts 26 can be smaller than those of the roll surface forming parts 25, the number of the positioning parts 26 can be one or more, the positioning parts 26 can be arranged outside the support shaft 1, grooves can be formed in the support shaft, and the positioning parts 26 are arranged in the grooves.

For example, as shown in fig. 14, in an embodiment, a positioning groove 12 is provided on an outer wall of the support shaft 1, a length direction of the positioning portion 26 is parallel to a length direction of the support shaft 1, a width direction of the positioning portion 26 is perpendicular to the length direction of the support shaft 1, a width of the positioning portion 26 is smaller than a width of the positioning groove 12, and a length of the positioning portion 26 is smaller than a length of the positioning groove 12, so that the positioning portion 26 can be fitted into the positioning groove 12. The positioning part 26 is provided with one, the bottom surface of constant head tank 12 is convex along length direction, and positioning part 26 has the convex surface of the bottom surface complex with constant head tank 12, when backing sheet 2 receives the jacking force of first top pushing piece 4 or second top pushing piece 6, positioning part 26 rotates in constant head tank 12, and the in-process of rotation can remain the arc surface throughout between positioning part 26 and the constant head tank 12 and contact, and the supporting effect of constant head tank 12 to backing sheet 2 is better, and is favorable to steady rotation of backing sheet 2.

Through the cooperation of location portion 26 and constant head tank 12 for every backing sheet 2 can only remove or rotate in the within range that constant head tank 12 prescribes a limit to, constant head tank 12 not only can be at the circumference of back shaft 1 location backing sheet 2, can also be at the axial of back shaft 1 location backing sheet 2, and the roll surface 3 that a plurality of backing sheets 2 formed is more regular, and the structure of tapering adjustable roller is more stable.

The stop parts 16 are disposed at two ends of the support shaft 1, and the distance between the two stop parts 16 may be greater than the maximum length of the positioning parts 26, or the maximum distance between the two positioning parts 26 located at two ends of the support sheet 2 along the length direction among the positioning parts 26, which makes the support sheet 2 have a certain movable space along the axis direction of the support shaft 1 during the swinging process, so that the support sheet 2 swings freely to form the roller surfaces 3 with different tapers.

When the moving range of the supporting piece 2 exceeds the space defined by the two stopping portions 16, the two stopping portions 16 can position the supporting piece 2 in the axial direction of the supporting shaft 1, so that each supporting piece 2 can only swing in the range defined by the stopping portions 16, the supporting piece 2 is not easy to move along the axial direction of the supporting shaft 1 under the action of the first pushing piece 4 or the second pushing piece 6, the structure of the taper adjustable roller is more stable, the roller surfaces 3 formed by the supporting pieces 2 are more regular, and the taper of the roller surfaces 3 is more controllable.

As shown in fig. 12, in some embodiments, the width of the positioning portion 26 in the direction perpendicular to the axis of the support shaft 1 is smaller than the width of the roll surface forming portion 25.

The roll surface forming portion 25 is used for forming the roll surface 3, the positioning portion 26 is used for being matched with the positioning groove 12 on the support shaft 1, therefore, the positioning portion 26 is closer to the support shaft 1 than the roll surface forming portion 25, namely, when the axis of the support shaft 1 is taken as the axis, the circumference diameter of the roll surface forming portion 25 is larger, the circumference diameter of the positioning portion 26 is smaller, therefore, when the width of the positioning portion 26 in the direction perpendicular to the axis of the support shaft 1 is smaller than the width of the roll surface forming portion 25, in the process that the diameter of the roll surface 3 formed by the support sheet 2 is reduced, the adjacent positioning portion 26 cannot contact with the adjacent roll surface forming portion 25 before the adjacent roll surface forming portion 25, so that the roll surface forming portion 25 of the adjacent support sheet 2 can be freely close to or far away from, the diameter of the roll surface 3 of the taper adjustable roll depends on the interval between the adjacent roll surface forming portions 25, the diameter and the taper of the roll surface forming portion 25 is adjustable, and the taper of the roll is adjustable.

As shown in fig. 13 and 14, in some embodiments, the support shaft 1 includes an inner shaft 13 and an outer shaft 14, the outer shaft 14 is provided with a through hole 141 along an axial direction thereof, the inner shaft 13 is provided in the through hole 141 and rotates to support the outer shaft 14, and the support sheet 2 is coupled to the outer shaft 14.

The inner shaft 13 may be a stepped shaft, the through hole 141 of the outer shaft 14 may be a stepped hole, and the inner shaft 13 and the outer shaft 14 may be rotationally engaged in a circumferential direction, that is, may be merely outer rotation, and the inner shaft 13 may be stationary; it is also possible to rotate only the inner shaft 13 and the outer shaft 14, the fit can be achieved by a clearance fit between the inner shaft 13 and the outer shaft 14, or by mounting a bearing 15 between the inner shaft 13 and the outer shaft 14, in which state the inner shaft 13 can be fixedly mounted on the external device, and the outer shaft 14 rotates relative to the inner shaft 13 under the friction of the strip to convey the strip and tension the strip, reducing the tearing of the strip and preventing damage to the strip.

As shown in fig. 12, in some embodiments, the first pusher 4 is disposed between the outer shaft 14 and the inner shaft 13, and at least a portion of the support tab 2 extends through a sidewall of the outer shaft 14 into sliding contact with the first pusher 4.

By adopting the scheme, the first pushing piece 4 is arranged between the inner shaft 13 and the outer shaft 14, so that the space between the support shaft 1 and the support sheet 2 is not occupied, and the support sheet 2 can be subjected to larger-range taper adjustment outside the support shaft 1.

In summary, in this embodiment of the present application, the first pushing member 4 pushes the plurality of supporting pieces 2, so that the diameter of the roll surface 3 formed by the plurality of supporting pieces 2 gradually changes from the first end 21 to the second end 22 to form a conical surface, when the taper adjustable roll is used for conveying a strip, the end with a larger diameter of the roll surface 3 can be used for contacting the loose side of the strip, the end with a smaller diameter of the roll surface 3 is used for contacting the tight side of the strip, the contact area between the loose side of the strip and the roll surface 3 is larger, and the contact area between the tight side and the roll surface 3 is smaller, so that the loose side of the strip is tensioned on the taper adjustable roll, the tightness of both sides in the width direction of the strip is balanced, and the tension difference of both sides of the strip is reduced, thereby reducing the strip wrinkling and tearing deformation problems.

Those skilled in the art will appreciate that while some embodiments herein include certain features that are included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the present application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The above embodiments are merely for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. A taper adjustable roller, comprising:

a support shaft;

the support plates are arranged around the circumference of the support shaft, the circumferential surfaces of one sides, far away from the support shaft, of the support plates are combined to form a roller surface, and the support plates are provided with a first end and a second end along the axial direction of the support shaft; the supporting piece can do swinging motion relative to the supporting shaft;

the first pushing piece is arranged on the supporting shaft and is used for pushing the first ends of the plurality of supporting pieces in the general radial direction, so that the first ends are close to the supporting shaft, the second ends are far away from the supporting shaft, or the first ends are far away from the supporting shaft, and the second ends are close to the supporting shaft, and the diameters of the roller surfaces from the first ends to the second ends are gradually changed.

2. The adjustable taper roller of claim 1, further comprising a polymeric member that presses and/or tightens the support sheet in a direction toward the support shaft such that the plurality of support sheets have a tendency to draw toward the support shaft.

3. The adjustable taper roller of claim 1, further comprising a second pusher for supporting the second ends of the plurality of support tabs in a generally radial direction.

4. A taper roller according to any one of claims 1 to 3, wherein the support sheet is provided with a swing support portion which cooperates with the support shaft to support the support sheet for swinging on the support shaft about the swing support portion.

5. The adjustable taper roller of claim 4, further comprising a limiting portion disposed on the support shaft for limiting the swinging of the swinging support portion within a range defined by the limiting portion.

6. The roll according to claim 5, wherein the stopper portion includes a groove provided on the support shaft, and a part of the swing support portion swings in the groove.

7. The taper roller according to claim 6, wherein the portions of the swing supporting portion and the groove that are in contact are each arc-shaped.

8. A taper roller according to any one of claims 1 to 3, wherein the first urging member includes a first urging taper surface, an axial direction of the first urging taper surface is parallel to an axis of the support shaft, and the first urging member moves in the axial direction of the support shaft so that the first end of the support piece is brought into sliding contact with the first urging taper surface and urged by the first urging taper surface to approach or separate from the support shaft.

9. The adjustable taper roller according to claim 8, wherein the support piece is provided with a first adjusting portion protruding toward the first pushing member, the first adjusting portion has a first contact surface, and the first contact surface is in sliding contact with the first pushing taper surface.

10. The adjustable taper roller as recited in claim 8, wherein the first urging member is threadedly coupled to the support shaft in an axial direction of the support shaft.

11. The taper roller according to claim 3, wherein the second urging member includes a second urging taper surface, an axial direction of the second urging taper surface is parallel to an axis of the support shaft, and the second urging member moves in the axial direction of the support shaft so that the second end of the support piece is in sliding contact with the urging taper surface.

12. The adjustable taper roller according to claim 11, wherein the support piece is provided with a second adjusting portion protruding toward the second pushing member, the second adjusting portion has a second contact surface, and the second contact surface is in sliding contact with the second pushing taper surface.

13. A taper roll according to any one of claims 1 to 3, wherein the support sheet includes a roll surface forming portion and a positioning portion, at least part of the surface of the roll surface forming portion being used to form the roll surface; the positioning part is positioned on the radial inner side of the roll surface forming part;

and two ends of the supporting shaft are provided with stop parts which are matched with the positioning parts so as to limit the axial movement of the supporting piece.

14. A taper roller according to any one of claims 1 to 3, wherein the support shaft includes an inner shaft and an outer shaft, the outer shaft being provided with a through hole in an axial direction thereof, the inner shaft being provided in the through hole and rotatably supporting the outer shaft, the support sheet being attached to the outer shaft.

15. The adjustable taper roller of claim 14, wherein the first urging member is disposed between the outer shaft and the inner shaft, and wherein at least a portion of the support tab extends through a sidewall of the outer shaft into sliding contact with the first urging member.

16. A web transport apparatus comprising the adjustable taper roll of claims 1-15.