CN212062584U

CN212062584U - Roller passing device and winding equipment

Info

Publication number: CN212062584U
Application number: CN202020751621.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-01
Anticipated expiration: 2030-05-09

Abstract

The utility model relates to a cross roller device and coiling equipment. The roller passing device comprises a roller passing assembly, wherein the roller passing assembly comprises a mounting bracket, a roller passing assembly and an adsorption element; the roller group comprises at least two rollers which are parallel to each other and are rotatably connected to the mounting bracket around the axis of the roller group, and the at least two rollers are used for guiding the wound membrane material into the winding needle; the adsorption piece is arranged on the mounting bracket and can controllably adsorb the film material wound by at least two rollers. So, steerable absorption piece adsorbs the membrane material before the membrane material is cut off to can effectively prevent the membrane material resilience after the membrane material is cut off, avoid the membrane material to break away from the book needle that is located the coiling station, and can make the membrane material remain the tensioning throughout, be favorable to guaranteeing to wind the quality.

Description

Roller passing device and winding equipment

Technical Field

The utility model relates to a coiling equipment technical field especially relates to a cross roller device and coiling equipment.

Background

In the process of winding the battery core, a film material such as a diaphragm needs to be guided into a winding needle of a winding device by a roller device for winding and forming. Generally, the turret of the winding device comprises at least two winding needles, and the at least two winding needles are respectively switched between a winding station, a blanking station and the like during the rotation of the turret, so that continuous production is realized.

However, since the film needs to be fed with a constant tension during the winding operation, and a small winding pin having a clamping structure for clamping the film does not have enough space, the film may be cut and then rebound during the switching of the winding pin, so that the film may be loosened to affect the winding effect, and the winding pin may be separated from the winding pin to disable the switching of the winding pin, that is, a continuous winding operation may not be performed.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a film passing device and a winding apparatus that improve the above-mentioned drawbacks, in order to solve the problems that the film material introduced by the passing device is cut and rebounds during the switching of the winding needle, the winding effect is affected by the slack of the film material, and the winding needle cannot be switched due to the separation from the winding needle, that is, the continuous winding operation cannot be performed in the related art.

A roller passing apparatus comprising a roller passing assembly, the roller passing assembly comprising:

mounting a bracket;

the roll passing set comprises at least two roll passing rollers which are parallel to each other and are rotatably connected to the mounting bracket around the axis of the roll passing set, and the at least two roll passing rollers are used for guiding the wound membrane material to the winding needle; and

and the adsorption piece is arranged on the mounting bracket and can controllably adsorb the film passing through the at least two rollers.

In one embodiment, the adsorption piece is an adsorption tube communicated with a vacuum source, the adsorption tube longitudinally extends along the axial direction of the roller, and a plurality of air suction holes are formed in the adsorption tube and are arranged at intervals along the longitudinal extension direction of the adsorption tube.

In one embodiment, the roller passing device further comprises a moving assembly, and the moving assembly is in transmission connection with the mounting bracket to drive the mounting bracket to move along a first direction perpendicular to the axial direction of the roller.

In one embodiment, the moving assembly includes a mounting seat, a screw rod, a screw nut and a moving driving member, the mounting bracket is movably connected to the mounting seat along the first direction, the screw rod is rotatably connected to the mounting seat around its axis, the moving driving member is disposed on the mounting seat and is in transmission connection with the screw rod, and the screw nut is in threaded connection with the screw rod and is connected with the mounting bracket.

In one embodiment, the roller passing device further comprises an adjusting assembly, the adjusting assembly comprises a transfer seat and an adjusting driving structure, the transfer seat is in transmission connection with the moving assembly, the mounting bracket is movably connected with the transfer seat along a second direction perpendicular to the first direction and the axial direction of the roller, and the adjusting driving structure is arranged on the transfer seat and is in transmission connection with the mounting bracket.

In one embodiment, the adjusting driving structure includes a screw support connected to the transfer base and an adjusting screw rotatably connected to the screw support, and one end of the adjusting screw is threadedly connected to the mounting bracket.

In one embodiment, the roller device further comprises a smoothing assembly, wherein the smoothing assembly comprises a smoothing plate and a swinging driving piece, the smoothing plate is rotatably connected to the mounting bracket, and the swinging driving piece is arranged on the mounting bracket and is in transmission connection with the smoothing plate;

the smoothing plate comprises a smoothing position and a avoiding position in the rotating process, and when the smoothing plate is located at the smoothing position, the smoothing plate can smooth the pole lugs of the pole pieces wound on the winding needle.

In one embodiment, the smoothing assembly further comprises a swing rod and a mounting rod, the swing rod comprises a connecting end and a swing end opposite to the connecting end, the connecting end is rotatably connected to the mounting bracket, the mounting rod is connected to the swing rod, and the smoothing plate is connected to the mounting rod;

the swing driving piece is hinged to the mounting bracket and the swing end of the swing rod.

In one embodiment, the roller group comprises two rollers, and the adsorption member is positioned between the two rollers.

A winding apparatus comprising a roller device as described in any of the above embodiments.

Above-mentioned cross roller device and coiling equipment, steerable absorption piece adsorbs the membrane material before the membrane material is cut off to can effectively prevent the membrane material resilience after the membrane material is cut off, avoid the membrane material to break away from the book needle that is located the coiling station, and can make the membrane material remain the tensioning throughout, be favorable to guaranteeing the coiling quality.

Drawings

Fig. 1 is a schematic structural view illustrating a positional relationship between a roller group and a turret when a mounting bracket is located at a conveying position according to an embodiment of the present invention;

fig. 2 is a schematic structural view illustrating a positional relationship between the roller set and the turret when the mounting bracket is located at the positioning position according to an embodiment of the present invention;

fig. 3 is a front view of a roller passing device according to an embodiment of the present invention;

fig. 4 is a plan view of the roll passing device shown in fig. 3.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, an embodiment of the present invention provides a winding apparatus including a roller passing device and a winding device. The roll passing device is used for guiding the film material into the winding device, and the winding device is used for winding and forming the film material.

The winding device comprises a turret 201, at least two winding needles are mounted on the turret 201, and the turret 201 rotates to enable the at least two winding needles to be respectively switched between a winding station, a blanking station and the like. For convenience of description, the two-station turret will be described as an example, and two winding pins are mounted on the two-station turret 201, and are respectively defined as a first winding pin 201a and a second winding pin 201 b. When the first winding needle 201a rotates with the turret 201 to the winding station (as shown in fig. 1), the first winding needle 201a can perform the winding operation, and at the same time, the second winding needle 201b rotates to the blanking station, and can perform the operations of gluing, blanking, and the like.

Referring to fig. 1 to 4, in an embodiment of the present invention, the roller passing device includes a roller passing assembly 10. The roller assembly 10 includes a mounting bracket 11, a roller set 12 (see fig. 4), and an adsorption member 13 (see fig. 4). The set of rollers 12 comprises at least two rollers 121 parallel to each other and each rotatably connected about its own axis to the mounting bracket 11. The film passes through the rollers 121 in an "S" shape in sequence, and the at least two rollers 121 are used for guiding the passed film to the winding needle (i.e. the first winding needle 201a or the second winding needle 201b) at the winding station. The suction member 13 is mounted on the mounting bracket 11 and can controllably suck the film passing through the at least two rollers 121.

So, steerable absorption piece 13 adsorbs the membrane material before the membrane material is cut off to can effectively prevent the membrane material resilience after the membrane material is cut off, avoid the membrane material to break away from the book needle that is located the coiling station, and can make the membrane material remain the tensioning throughout, be favorable to guaranteeing to wind the quality.

In particular embodiments, the suction member 13 may be a suction tube in communication with a vacuum source. This adsorption tube extends along the axial lengthwise of roller 121, sets up a plurality of suction holes of arranging along its lengthwise extending direction on this adsorption tube to the accessible adsorbs the membrane material through these a plurality of suction holes. Therefore, the adsorption of the adsorption tube on the membrane material can be controlled by controlling the starting and stopping of the vacuum source. It will be appreciated that the vacuum source may be a vacuum pump or the like.

In the embodiment, the roller group 12 includes two rollers 121, and the suction member 13 is located between the two rollers 121. In this way, the film is wound between the two rollers 121 in an "S" shape, that is, the film is wound from the bottom of the upstream roller 121 (i.e., the roller 121 closer to the left side in fig. 4) to the top of the downstream roller 121 (i.e., the roller 121 closer to the right side in fig. 4), and the adsorbing member 13 can adsorb the film between the two rollers 121, so that the film is fixed relative to the roller 121, thereby preventing the film from rebounding after being cut.

The embodiment of the utility model provides an in, cross roller device and still include the transmission and connect in the removal subassembly 20 of installing support 11, this removal subassembly 20 can drive installing support 11 and remove along the axial looks vertically first direction a with cross roller 121 to make the membrane material after passing roller set 12 be in vertical state, and align to the crack b of rolling up the needle of coiling the station with rotating, make this roll needle can insert to roll up the crack b of needle when stretching out along the axial, so that this roll needle can be from then on coiling the membrane material on this roll needle after the membrane material is cut off.

Thus, when winding of the first winding needle 201a at the winding station is completed: first, the turret 201 rotates so that the first winding needle 201a rotates to the blanking station and the second winding needle 201b rotates to the winding station. Then, the moving assembly 20 drives the mounting bracket 11 to move along the first direction a, so that the over-roller set 12 is positioned above the winding station (i.e., above the second winding needle 201b), so that the film material output by the over-roller set 12 is aligned with the seam b of the second winding needle 201 b. Then, the second winding needle 201b is axially extended in itself so that the film material is inserted into the nip b of the second winding needle 201 b. Then, the adsorbing material 13 adsorbs the separator to cut the film material. Then, the moving assembly 20 drives the mounting bracket 11 to return along the first direction a, and the second winding needle 201b rotates to wind the cut film material to the second winding needle 201 b. Finally, the suction unit 13 stops sucking the film (that is, releases the film), and the second winding needle 201b continues to rotate to perform the winding operation.

In an embodiment, the mounting bracket 11 includes a conveying position and a positioning position during the movement along the first direction a driven by the moving assembly 20. When the mounting bracket 11 is in the conveying position, the film material is guided to the winding needle at the winding position through the roller group 12 to be wound (as shown in fig. 1). When the mounting bracket 11 is in the set position, the over-roll set 12 is positioned above the winding needle at the winding station so that the film is aligned with the nip b of the winding needle at the winding station (as shown in fig. 2).

In the embodiment shown in fig. 1 and 2, the set of over-rollers 12 is located to the left of the winding needles at the winding station when the mounting bracket 11 is in the transport position and above the winding needles at the winding station when the mounting bracket 11 is in the positioning position. The first direction a is a direction inclined to the right side with respect to the vertical direction.

In one embodiment, the moving assembly 20 includes a mounting base (not shown), a lead screw 21, a lead screw nut (not shown), and a moving driver 22. The mounting bracket 11 is reciprocatably coupled to the mount base in a first direction a. The screw 21 is rotatably connected to the mounting about its own axis. The movable driving member 22 is disposed on the mounting seat and is in transmission connection with the screw rod 21 to drive the screw rod 21 to rotate around its axis. The lead screw nut is screwed to the lead screw 21 and connected to the mounting bracket 11, so that the mounting bracket 11 moves along with the lead screw nut in the axial direction (i.e., the first direction a) of the lead screw 21, thereby driving the mounting bracket 11 to reciprocate in the first direction a.

Further, the moving assembly 20 further includes a driving wheel 23, a driven wheel 24 and a transmission belt 25. The driving pulley 23 is mounted to an output shaft of the movable driving member 22 to rotate in synchronization with the output shaft of the movable driving member 22. The driven pulley 24 is mounted to the lead screw 21 to rotate in synchronization with the lead screw 21. The transmission belt 25 is sleeved between the driving wheel 23 and the driven wheel 24, so that the driving wheel 23 drives the driven wheel 24 to rotate through the transmission belt 25, that is, the rotary motion output by the movable driving piece 22 is transmitted to the screw rod 21, and the screw rod 21 is driven to rotate around the axis thereof. Alternatively, the movable drive 22 may be a motor. Of course, the transmission connection between the movable driving member 22 and the screw rod 21 is not limited to a belt transmission, and other transmission methods, such as a gear transmission, may be adopted.

Further, the moving assembly 20 further includes a first slide rail 26 and a first slide block 27, the first slide rail 26 is disposed on the mounting seat, and the first slide block 27 is slidably connected to the first slide rail 26 along the first slide rail 26. The mounting bracket 11 is fixedly connected to the first sliding block 27, so that the mounting bracket 11 and the first sliding block 27 move together along the first sliding rail 26, and the movement of the mounting bracket 11 is more stable and reliable. It will be appreciated that the first slide rail 26 extends lengthwise in a first direction a.

In specific embodiments, the roll passing device further comprises an adjusting assembly 40, and the adjusting assembly 40 is used for adjusting the position of the roll passing group 12 relative to the winding needles, so that the film material can be smoothly guided into the winding needles with different specifications for winding, and the compatibility can be improved. The adjusting assembly 40 includes a carriage 31 and an adjusting driving structure (not shown). The transfer base 31 is connected to the moving unit 20 in a driving manner, and can be driven by the moving unit 20 to reciprocate in the first direction a. The mounting bracket 11 is movably coupled to the carriage 31 in a second direction perpendicular to the first direction a and the axial direction of the roller 121. The adjusting driving structure is disposed on the transferring seat 31 and is in transmission connection with the mounting bracket 11 to drive the mounting bracket 11 to move along the second direction, so as to achieve the purpose of adjusting the position of the roller group 12 on the mounting bracket 11 in the second direction. In the embodiment shown in fig. 3, the second direction is an up-down direction.

Further, the adjusting driving structure includes a screw support 321 and an adjusting screw 322. The screw support 321 is connected to the transfer base 31, the adjusting screw 322 is rotatably connected to the screw support 321, and one end of the adjusting screw 322 is threadedly connected to the mounting bracket 11. In this way, since the mounting bracket 11 is in threaded connection with the adjusting screw 322, the mounting bracket 11 can be driven to move along the adjusting screw 322 by rotating the adjusting screw 322. It will be appreciated that the longitudinal extension of the adjustment screw 322 is parallel to the second direction.

To facilitate screwing the adjusting screw 322, in one embodiment, an adjusting handle 36 may be installed at an end of the adjusting screw 322 far from the mounting bracket 11, and the adjusting screw 322 may be rotated by screwing the adjusting handle 36. It should be noted that the adjusting handle 36 may also be replaced by a motor-driven structure, that is, the motor-driven structure is used to electrically drive the adjusting screw 322 to rotate, so as to achieve automatic and precise adjustment.

In order to enable accurate adjustment of the position of the set of overrollers 12 on the mounting bracket 11, in one embodiment a position display 35 may be mounted on the transfer carriage 31, which position display 35 may display the position of the mounting bracket 11 in real time. The position indicator 35 may be implemented by a conventional technique, and thus will not be described herein.

Specifically, in the embodiment, the adjusting driving structure further includes a second slide rail 33 and a second slide block 34. The second slide rail 33 is disposed on the carriage 31, and the second slider 34 can be slidably connected to the second slide rail 33 along the second slide rail 33. The mounting bracket 11 is fixedly connected to the second slider 34, so that the mounting bracket 11 and the second slider 34 slide along with the second slide rail 33. It is understood that the longitudinal extension direction of the second slide rail 33 is parallel to the second direction.

In the embodiment of the present invention, the roller-passing device further includes a smoothing assembly 40. The smoothing assembly 40 includes a smoothing plate 41 and a swing driving member 42, the smoothing plate 41 is rotatably connected to the mounting bracket 11, and the swing driving member 42 is disposed on the mounting bracket 11 and is in transmission connection with the smoothing plate 41, so that the swing driving member 42 can drive the smoothing plate 41 to rotate.

The smoothing plate 41 comprises a smoothing position (shown in fig. 1) and a position avoiding position (shown in fig. 2) in the rotating process, and when the smoothing plate 41 is located at the smoothing position, the smoothing plate 41 can smooth the pole lugs of the pole pieces wound on the winding needle (the winding needle at the winding station). When the leveling plate 41 is in the avoiding position, interference of the leveling plate 41 during movement of the mounting bracket 11 in the first direction a can be avoided. Preferably, the leveling plate 41 may be a mylar tab.

In one embodiment, the smoothing assembly 40 further includes a swing link 43 and a mounting rod 44, the swing link 43 includes a connecting end 431 (see fig. 4) and a swing end 432 (see fig. 4) opposite to the connecting end 431, the connecting end 431 is rotatably connected to the mounting bracket 11, the mounting rod 44 is connected to the swing link 43, and the smoothing plate 41 is connected to the mounting rod 44. The swing driving member 42 is hinged to the mounting bracket 11 and the swing end 432 of the swing link 43, so that the swing driving member 42 drives the swing end 432 of the swing link 43 to rotate around the connecting end 431. In this way, the swing end 432 of the swing link 43 is driven by the swing driving element 42 to rotate around the connecting end 431, so as to drive the mounting rod 44 and the smoothing plate 41 on the mounting rod 44 to rotate, and the smoothing plate 41 is located at the smoothing position or the avoiding position. Preferably, the mounting lever 44 is connected between the connecting end 431 and the swing end 432 of the swing link 43. The swing actuator 42 may be a pneumatic cylinder.

In one embodiment, the swing link 43 includes two swing links 43, and the two swing links 43 are respectively located at both sides of the mounting bracket 11 in the axial direction of the roller 121. Both ends of the mounting rod 44 are connected to the two swing links 43, respectively. Thus, two swing rods 43 are arranged, so that the leveling plate 41 is more stable. Further, the connecting end 431 of each swing link 43 is sleeved on a roller shaft of a roller 121 and can rotate around the roller shaft of the roller 121. In this way, the rotatable connection of the connecting end 431 is realized by the roller shaft of the roller 121, and the structure of the roller passing device is simplified. It can be understood that the connecting ends 431 of the two swing links 43 are respectively sleeved at the opposite ends of the roller shaft of one of the rollers 121.

In one embodiment, the two flattening plates 41 are arranged at intervals along the longitudinal direction of the mounting rod 44, so that the tabs at two ends of the pole piece wound on the winding pin can be flattened by the two flattening plates 41 respectively.

In the embodiment of the present invention, the winding apparatus further includes a cutting device 300, and the cutting device 300 is used for cutting off the film material. It should be noted that the cutting device 300 can adopt a mature prior art, and is not described herein.

The following briefly explains the winding operation flow of the winding apparatus of the present invention:

the mounting bracket 11 is in the delivery position and the leveling plate 41 is in the leveling position. The passing roller group 12 guides the film material to the first winding needle 201a located at the winding station, and the first winding needle 201a rotates and winds.

When the winding of the first winding needle 201a is completed, the leveling plate 41 is rotated to the avoiding position, and the turret 201 is rotated (counterclockwise in the embodiment shown in fig. 1) so that the first winding needle 201a is rotated to the blanking station, and simultaneously the second winding needle 201b is rotated to the winding position. The mounting bracket 11 is moved to the positioning position so that the film material is aligned with the nip b of the second winding needle 201 b. The adsorbing member 13 adsorbs and fixes the film material.

The second winding needle 201b is projected in its axial direction (i.e., moved outward perpendicular to the paper surface in the embodiment shown in fig. 2) so that the film material is inserted into the nip b of the second winding needle 201 b.

The cutting device 300 can be used to cut the film material between the first winding needle 201a and the second winding needle 201b, and the film material is sucked by the suction member 13, so that the film material is prevented from rebounding and being drawn out from the seam b of the second winding needle 201 b.

The mounting bracket 11 is moved to the conveying position, and the leveling plate 41 is rotated to the leveling position. The second winding needle 201b rotates to wind the cut film material onto the second winding needle 201 b. Then, the suction member 13 stops sucking the film (that is, releases the film), and the second winding needle 201b continues to rotate and wind.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A roller passing device, comprising a roller passing assembly, wherein the roller passing assembly comprises:

mounting a bracket;

2. A roller device according to claim 1, wherein the suction member is a suction tube in communication with a vacuum source, the suction tube extends lengthwise in the axial direction of the roller, and the suction tube is provided with a plurality of suction holes spaced apart along the lengthwise direction.

3. A roller device as claimed in claim 1, further comprising a moving assembly drivingly connected to the mounting bracket for driving the mounting bracket in a first direction perpendicular to the axial direction of the roller.

4. A roller device according to claim 3, wherein the moving assembly comprises a mounting seat, a screw rod, a screw nut and a moving drive;

the mounting bracket is along the first direction movably connect in the mount pad, the lead screw around self axis rotationally connect in the mount pad, remove the driving piece set up in the mount pad, and with the lead screw transmission is connected, screw-nut threaded connection in the lead screw, and with the mounting bracket is connected.

5. A roller device as claimed in claim 3, further comprising an adjustment assembly, the adjustment assembly comprising a carriage and an adjustment drive structure;

the transfer seat is in transmission connection with the moving assembly, the mounting bracket is movably connected with the transfer seat along a second direction perpendicular to the first direction and the axial direction of the roller, and the adjusting driving structure is arranged on the transfer seat and is in transmission connection with the mounting bracket.

6. A roller device according to claim 5, wherein the adjusting drive structure comprises a screw support and an adjusting screw, the screw support is connected to the transfer base, the adjusting screw is rotatably connected to the screw support, and one end of the adjusting screw is in threaded connection with the mounting bracket.

7. A roller device as recited in claim 1, further comprising a smoothing assembly, the smoothing assembly including a smoothing plate rotatably coupled to the mounting bracket and a swing drive disposed on the mounting bracket and drivingly coupled to the smoothing plate;

8. A roller device according to claim 7, wherein the smoothing assembly further comprises a swing link and a mounting rod, the swing link comprises a connecting end and a swing end opposite to the connecting end, the connecting end is rotatably connected to the mounting bracket, the mounting rod is connected to the swing link, and the smoothing plate is connected to the mounting rod;

9. A roller device according to claim 1, wherein the roller group comprises two rollers, and the suction member is located between the two rollers.

10. A winding plant characterized by comprising a roller device according to any one of claims 1 to 9.