CN214898501U

CN214898501U - Coating and stretching device

Info

Publication number: CN214898501U
Application number: CN202120089022.5U
Authority: CN
Inventors: 朱亚楠
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-11-26
Anticipated expiration: 2031-01-13

Abstract

The utility model relates to a technical field is made to the battery, provides a coating stretching device, including locating the first drive roller subassembly of coating one side edge, locate the second drive roller subassembly of coating opposite side edge and locate first drive roller subassembly and second drive roller subassembly top and can move towards or keep away from the compression roller subassembly that first drive roller subassembly and second drive roller subassembly removed, two side edges of coating press from both sides respectively and locate between first drive roller subassembly and the compression roller subassembly and press from both sides and locate between second drive roller subassembly and the compression roller subassembly. Then, the both sides edge of coating is rolled and is stretched by first drive roller subassembly and compression roller subassembly and by second drive roller subassembly and compression roller subassembly respectively, and the coating district of coating after the roll-in and the intersection of leaving white district then more level and more smooth, moreover, because perpendicular to coating when the roll-in effort, can not follow the transmission line of defence tractive coating so, the probability greatly reduced of disconnected area.

Description

Coating and stretching device

Technical Field

The utility model relates to a battery manufacturing technology field especially provides a coating stretching device.

Background

In the manufacturing process of the lithium ion battery, a compaction procedure is required for coating the pole piece. The coating pole piece roll comprises a coating area and two side whitening areas, and the pole lugs are arranged in the whitening areas. However, the existing stretching device stretches in a front-back stretching mode, the stretching effect is poor, namely, the white area cannot be stretched, so that the imagination that wrinkles and unevenness appear at the intersection of the coating area and the white area, and even the situation that the belt is broken appears.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a coating stretching device aims at solving the current stretching device and to the not good problem of the tensile effect of coating.

In order to achieve the above object, the utility model adopts the following technical scheme: the coating stretching device comprises a first transmission roller assembly arranged on one side edge of a coating, a second transmission roller assembly arranged on the other side edge of the coating, and a press roller assembly which is arranged above the first transmission roller assembly and the second transmission roller assembly and can move towards or away from the first transmission roller assembly and the second transmission roller assembly, wherein two side edges of the coating are respectively clamped between the first transmission roller assembly and the press roller assembly and between the second transmission roller assembly and the press roller assembly.

The utility model has the advantages that: the utility model provides a coating stretching device, add first drive roller subassembly and second drive roller subassembly through the both sides edge to the coating, and set up the compression roller subassembly in the top of the two, thus, the both sides edge of coating is rolled in by first drive roller subassembly and compression roller subassembly and by second drive roller subassembly and compression roller subassembly respectively and is tensile, the coating district and the leaving white district intersection of coating after the roll-in then level and more smooth, and, because the perpendicular to coating during the roll-in effort, so can not follow the transmission and prevent line tractive coating, the probability greatly reduced of disconnected area.

In one embodiment, the nip roller assembly includes a first nip roller corresponding to the first drive roller assembly and a second nip roller corresponding to the second drive roller assembly.

By adopting the technical scheme, the first press roll and the second press roll are utilized to respectively correspond to the first transmission roll assembly and the second transmission roll assembly so as to roll and stretch the edges at two sides of the coating, and the first press roll and the second press roll can work independently.

In one embodiment, the press roll assembly further comprises a connecting bar structure connecting the first press roll and the second press roll, the connecting bar structure being positioned transversely above the coating.

By adopting the technical scheme, the rolling actions of the first pressing roller and the second pressing roller are synchronized through the connecting rod structure, namely the two side edges of the coating are simultaneously rolled and stretched.

In one embodiment, the connecting rod structure includes a rod body and two connecting arms respectively disposed at two opposite ends of the rod body, the first pressing roller is sleeved on one of the connecting arms, and the second pressing roller is sleeved on the other connecting arm.

Through adopting above-mentioned technical scheme, the body of rod plays the connection effect, and the linking arm then plays the effect of fixed corresponding compression roller.

In one embodiment, the roller assembly further comprises a fine adjustment mechanism for adjusting the height of the connecting rod arrangement relative to the coating.

Through adopting above-mentioned technical scheme, adjust the height of connecting rod structure relative coating through fine-tuning for can adapt to the coating of different thickness.

In one embodiment, the fine adjustment mechanism includes a mounting seat mounted on the peripheral frame and an adjustment screw threaded onto the mounting seat, the adjustment screw abutting against the connecting rod structure.

Through adopting above-mentioned technical scheme, twist to stretch out and draw back and lean on the connecting rod structure through adjusting screw for the height of connecting rod structure to coating changes.

In one embodiment, the compression roller assembly further comprises a pushing cylinder, and the output end of the pushing cylinder abuts against the connecting rod structure.

Through adopting above-mentioned technical scheme, support the connecting rod structure so that the compression roller that corresponds continuously produces the holding down force through promoting the cylinder.

In one embodiment, the first drive roller assembly includes a first servo motor and a first roller body disposed at an output of the first servo motor.

Through adopting above-mentioned technical scheme, adjust the rotational speed of first roll body through first servo motor to obtain the best tensile state.

In one embodiment, the second drive roller assembly includes a second servo motor and a second roller body disposed at an output of the second servo motor.

Through adopting above-mentioned technical scheme, adjust the rotational speed of second roll body through second servo motor to obtain the best tensile state.

In one embodiment, the coating stretching device further comprises a heating device for heating the coating upstream section.

By adopting the technical scheme, the heating device is utilized to soften the coating, so that the ductility of the coating is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a front view of a coating and stretching apparatus provided in an embodiment of the present invention;

fig. 2 is a bottom view of a coating and stretching apparatus provided in an embodiment of the present invention;

fig. 3 is a left side view of the coating and stretching device provided by the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the device comprises a first transmission roller assembly 10, a second transmission roller assembly 20, a pressure roller assembly 30, a first pressure roller 31, a second pressure roller 32, a connecting rod structure 33, a rod body 331, a connecting arm 332, a fine adjustment mechanism 34, a mounting seat 341, an adjusting screw 342, a pushing cylinder 35, a first servo motor 11, a first roller body 12, a second servo motor 21, a second roller body 22, a heating device 40 and a coating 100.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more 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; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the coating stretching apparatus of the present application includes a first driving roller assembly 10 disposed on one side edge of a coating 100, a second driving roller assembly 20 disposed on the other side edge of the coating 100, and a pressing roller assembly 30 disposed above the first driving roller assembly 10 and the second driving roller assembly 20 and capable of moving toward or away from the first driving roller assembly 10 and the second driving roller assembly 20, wherein two side edges of the coating 100 are respectively interposed between the first driving roller assembly 10 and the pressing roller assembly 30 and between the second driving roller assembly 20 and the pressing roller assembly 30.

The utility model provides a 100 stretching device of coating, add first drive roller subassembly 10 and second drive roller subassembly 20 through the both sides edge to coating 100, and set up compression roller subassembly 30 in the top of the two, thus, the both sides edge of coating 100 is rolled in by first drive roller subassembly 10 and compression roller subassembly 30 and by second drive roller subassembly 20 and compression roller subassembly 30 respectively and is tensile, the coating district of coating 100 after the roll-in is then more level and smooth with leaving white district intersection, moreover, perpendicular to coating 100 when owing to roll-in effort, so can not follow transmission defence line tractive coating 100, the probability greatly reduced of disconnected area.

Referring to fig. 1, in one embodiment, the pressing roller assembly 30 includes a first pressing roller 31 corresponding to the first driving roller assembly 10 and a second pressing roller 32 corresponding to the second driving roller assembly 20. It is understood that the first press roller 31 and the second press roller 32 are used to correspond to the first driving roller assembly 10 and the second driving roller assembly 20, respectively, to roll-stretch both side edges of the coating 100, respectively, and the first press roller 31 and the second press roller 32 can be operated independently, thus being also suitable for the coating 100 in which only one side needs to be stretched.

Referring to fig. 1, in one embodiment, the roller assembly 30 further includes a connecting rod structure 33 connecting the first roller 31 and the second roller 32, and the connecting rod structure 33 is disposed transversely above the coating 100. It can be understood that the roll actions of the first and

second rolls

31 and 32 are synchronized by the connecting rod structure 33, that is, the first and

second rolls

31 and 32 are synchronously lifted or pressed down, and the roll stretching is simultaneously performed on the two side edges of the coating 100.

Referring to fig. 1, in one embodiment, the connecting rod structure 33 includes a rod body 331 and two connecting arms 332 respectively disposed at two opposite ends of the rod body 331, the first pressing roller 31 is disposed on one of the connecting arms 332, and the second pressing roller 32 is disposed on the other connecting arm 332. The rod body 331 has a connecting function to form the first pressing roller 31 and the second pressing roller 32 into a whole, and the connecting arm 332 has a function of fixing the corresponding pressing roller for the corresponding pressing roller to rotate around the shaft.

Referring to fig. 1, in one embodiment, the roller assembly 30 further includes a fine adjustment mechanism 34, and the fine adjustment mechanism 34 is used for adjusting the height of the connecting rod structure 33 relative to the coating 100. It will be appreciated that the fine adjustment mechanism 34 is used to adjust the height of the tie bar structure 33 relative to the coating 100 so that coatings 100 of different thicknesses can be accommodated. Thus, the fine adjustment mechanism 34 may be manual or electric.

Referring to fig. 1, in one embodiment, the fine adjustment mechanism 34 includes a mounting seat 341 mounted on the peripheral bracket and an adjusting screw 342 screwed on the mounting seat 341, wherein the adjusting screw 342 abuts against the connecting rod structure 33. By adopting the above technical solution, the adjusting screw 342 is screwed and stretched to abut against the connecting rod structure 33, so that the height of the connecting rod structure 33 to the coating 100 is changed.

Referring to fig. 1, in one embodiment, the pressing roller assembly 30 further includes a pushing cylinder 35, and an output end of the pushing cylinder 35 abuts against the connecting rod structure 33. It will be appreciated that the corresponding press roll continues to produce a depression force by pushing the cylinder 35 against the connecting rod arrangement 33. Preferably, the number of the pushing cylinders 35 is two, and the two pushing cylinders 35 push against the first pressing roller 31 and the second pressing roller 32, respectively. Of course, the number of the push cylinders 35 may be increased according to actual demands.

Referring to fig. 1 and 2, in one embodiment, the first driving roller assembly 10 includes a first servo motor 11 and a first roller 12 disposed at an output end of the first servo motor 11. Here, the first servo motor adjusts 11 the rotation speed of the first roller body 12 so that the rotation speed of the first roller body 12 and the conveyance speed of the coating 100 reach a suitable speed ratio, thereby obtaining an optimum stretching state.

Referring to fig. 1 and 2, in one embodiment, the second drive roller assembly 20 includes a second servo motor 21 and a second roller body 22 disposed at the output of the second servo motor 21. Similarly, the rotation speed of the second roller 22 is adjusted by the second servo motor 12, so that the rotation speed of the second roller 22 and the transfer speed of the coating 100 reach a proper speed ratio, thereby obtaining an optimal stretching state.

Referring to fig. 3, in one embodiment, the stretching apparatus for coating 100 further comprises a heating apparatus 40, and the heating apparatus 40 is used for heating the upstream section of the coating 100. By adopting the above-described technical means, the coating 100 is softened by the heating device 40, and the ductility of the coating 100 is improved. Specifically, the heating device 40 is a heating wire or the like, and is disposed around the periphery of the coating 100, so that the coating 100 maintains suitable ductility during transportation.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A coating and stretching device is characterized in that: the coating device comprises a first transmission roller assembly arranged on one side edge of coating, a second transmission roller assembly arranged on the other side edge of coating, and a press roller assembly which is arranged above the first transmission roller assembly and the second transmission roller assembly and can move towards or away from the first transmission roller assembly and the second transmission roller assembly, wherein two coated side edges are respectively clamped between the first transmission roller assembly and the press roller assembly and between the second transmission roller assembly and the press roller assembly.

2. The coating draw unit of claim 1, wherein: the press roll assembly includes a first press roll corresponding to the first drive roll assembly and a second press roll corresponding to the second drive roll assembly.

3. The coating draw unit of claim 2, wherein: the press roll component further comprises a connecting rod structure connected with the first press roll and the second press roll, and the connecting rod structure is transversely arranged above the coating.

4. The coating draw unit of claim 3, wherein: the connecting rod structure comprises a rod body and two connecting arms respectively arranged at two opposite ends of the rod body, one of the two connecting arms is sleeved with the first pressing roller, and the other connecting arm is sleeved with the second pressing roller.

5. The coating draw unit of claim 3, wherein: the compression roller assembly further comprises a fine adjustment mechanism, and the fine adjustment mechanism is used for adjusting the height of the connecting rod structure relative to coating.

6. The coating draw unit of claim 5, wherein: the fine adjustment mechanism comprises a mounting seat mounted on an external support and an adjusting screw screwed on the mounting seat, and the adjusting screw abuts against the connecting rod structure.

7. The coating draw unit of claim 3, wherein: the compression roller assembly further comprises a pushing cylinder, and the output end of the pushing cylinder abuts against the connecting rod structure.

8. The coating draw unit of claim 1, wherein: the first transmission roller component comprises a first servo motor and a first roller body arranged at the output end of the first servo motor.

9. The coating draw unit of claim 1, wherein: the second drive roller assembly comprises a second servo motor and a second roller body arranged at the output end of the second servo motor.

10. The coating draw unit of claim 1, wherein: the coating stretching device also comprises a heating device which is used for heating the coating upstream section.