CN220663001U

CN220663001U - Film wrapping unreeling mechanism and unreeling device

Info

Publication number: CN220663001U
Application number: CN202322283359.1U
Authority: CN
Inventors: 姚欣跃; 黄俭标; 梁文亮; 李德鸿; 常毅
Original assignee: GAC Aion New Energy Automobile Co Ltd
Current assignee: GAC Aion New Energy Automobile Co Ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-03-26
Anticipated expiration: 2033-08-23

Abstract

The application belongs to the technical field of unreeling equipment, and provides a film coating unreeling mechanism and unreeling device, which mainly comprise a film coating roller set, wherein a buffer roller set is arranged in front of the film coating roller set along the conveying direction of a film body; the buffer roller set comprises a first support roller, a second support roller and a buffer roller, wherein the buffer roller can move relative to the first support roller and the second support roller, and the film body sequentially winds the first support roller, the buffer roller and the second support roller to form a buffer section. According to the scheme, the buffer roller set is arranged, the buffer section can be formed before the film body is output to the film coating roller set for film coating operation, then the buffer section is controlled by moving the buffer roller, so that the quality influence of the tensile force generated in the instant of film pulling on the film coating can be reduced, the phenomenon of occurrence of dark marks and bubbles is improved, and the film coating appearance and the yield are improved conveniently.

Description

Film wrapping unreeling mechanism and unreeling device

Technical Field

The application belongs to the technical field of unreeling equipment, and particularly relates to a coated unreeling mechanism and unreeling device.

Background

In the later process of the production and processing of the battery cell, the battery cell is coated, and the surface of the coating of the battery cell is required to be free from appearance defects such as scratches, damages, dark marks, bubbles and the like. The purpose of the coating is to protect the battery cells, effectively isolate the direct contact between the battery cells in the module, enhance the insulativity, prevent the battery cells from having safety problems such as short circuit, overheat and the like, and facilitate the improvement of the safety and the service life of the battery cells.

The existing coating equipment controls unreeling of the film material through tension so as to coat the large surface of the battery cell; then, the blue film is cut off by a cutting knife, and then the film pulling rod is used for pasting the blue film and pulling the blue film to a film coating waiting position, so that the film coating of the next battery cell is prepared. When the unreeling tension is increased, a tensile deformation belt is easily formed at the position of a film body pasted by the film pulling rod by the pulling force formed by the pulling force and the tension in the film pulling process of the film pulling rod, so that the rear surface of the film coating presents dark marks, the thickness of the dark mark position is reduced, and the reject ratio of the withstand voltage insulation test is higher; when the unreeling tension is reduced, although the dark mark formed by the film pulling of the film pulling rod can be improved, the film body is not easy to cling to the surface of the battery cell, more bubbles are easy to generate, and the defective rate of appearance detection is higher.

Disclosure of Invention

In order to overcome at least one of the drawbacks of the prior art, an object of the present application is to provide a film wrapping and unreeling mechanism and unreeling device.

The technical means adopted for solving the technical problems are as follows:

the application provides a film wrapping and unreeling mechanism, which comprises a film wrapping roller set, wherein a buffer roller set is arranged in front of the film wrapping roller set along the conveying direction of a film body;

the buffer roller set comprises a first support roller, a second support roller and a buffer roller, wherein the buffer roller can move relative to the first support roller and the second support roller, and the film body sequentially winds the first support roller, the buffer roller and the second support roller to form a buffer section.

In the above-mentioned application scheme, through the buffer roller group that sets up, can be before the film body output extremely the diolame roller group carries out the diolame operation forms the buffer section, then through controlling the removal of buffer roller to can reduce the tensile force that produces in the twinkling of an eye and lead to the fact the quality influence to the pad pasting, improve the phenomenon that appears dark mark and bubble, be convenient for improve diolame outward appearance and yields.

Preferably, the end of the buffer roller is provided with a driving assembly for controlling the movement of the buffer roller.

In the above preferred scheme, the driving assembly is arranged to control the movement of the buffer roller, so that the adaptive supply between the buffer output and the film coating output is realized.

Preferably, the driving assembly comprises a sliding seat, a guide rail and a power source;

the buffer roller is connected with the sliding seat, the sliding seat is arranged on the guide rail, the relative position between the sliding seat and the guide rail is adjustable, and the power source is used for driving the sliding seat to adjust the position between the sliding seat and the guide rail.

In the above preferred solution, the installation and the arrangement of the buffer roller may be facilitated by the sliding seat, the guide rail may define a moving path of the buffer roller, and the power source may be used to provide power required by the buffer roller during moving.

Preferably, the sliding seat is slidably disposed on the guide rail, the power source includes a telescopic cylinder, and the sliding seat is connected with a movable end of the telescopic cylinder.

In the above preferred scheme, the telescopic cylinder can be adopted in a structural form, and the sliding seat and the buffer roller are driven to move by telescopic movement of the telescopic cylinder.

Preferably, the sliding seat is in threaded transmission connection with the guide rail, the power source comprises a motor, and the guide rail is in transmission connection with the motor.

In the above preferred scheme, a screw transmission structure may be adopted, and the motor is operated to drive the sliding seat and the buffer roller to move.

Preferably, a plurality of transfer rollers are provided in front of the buffer roller group along the conveying direction of the film body, and a pressure roller is provided between the transfer rollers and the buffer roller group.

In the above preferred scheme, the tightness degree of the film body input to the buffer roller set can be adjusted through the pressure roller, so that the application effect is improved.

Preferably, the roller surfaces of the transfer roller, the pressure roller and the buffer roller set are made of frosted materials.

In the above preferred scheme, the roll surfaces of the transfer roll, the pressure roll and the buffer roll set are made of frosted materials, so that the phenomenon that the film body is adhered to the roll surfaces of the transfer roll, the pressure roll and the buffer roll set in conveying can be avoided.

Preferably, the film coating roller set comprises a first film coating roller and a second film coating roller, and a film coating gap is formed between the first film coating roller and the second film coating roller;

the roll surfaces of the first coating roll and the second coating roll are made of soft materials.

In the above preferred scheme, the film pasting operation between the film body and the product to be film-pasted can be facilitated by forming the film pasting gap between the first film coating roller and the second film coating roller; meanwhile, the roll surfaces of the first coating roll and the second coating roll are made of soft materials, and flexible extrusion force can be applied to a product to be coated through the coating gap, so that the coating effect is improved.

Preferably, the film coating roller group further comprises a film pulling roller, and the film pulling roller can move to clamp the film body with the first film coating roller.

In the above preferred scheme, the film body at the output end can be clamped by the film pulling roller so as to facilitate the cutting operation of the film body.

The application also provides an unreeling device, which is provided with the coating unreeling mechanism.

Compared with the prior art, the scheme of the application has the following beneficial effects:

in this application scheme, before the film body is carried to the diolame roller group, because buffer roller group department has cached one section film body in advance, when drawing the membrane buffer roller cooperation forward impels the release film body, can effectively cushion the tension of film body unreeling mechanism, reduces the tensile force of drawing the membrane, has improved the plastic deformation area that the film body receives tensile force to form, improves blue membrane surface dark mark, improves diolame outward appearance and insulation test's yields.

Moreover, as the buffer roller group can buffer unreeling tension, the film pulling speed can be properly increased, and the further improvement of the production beat of the whole machine can be conveniently realized.

Drawings

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

Fig. 1 is a schematic structural view of a film wrapping and unreeling mechanism of the present application.

Fig. 2 is a schematic structural view of the film wrapping and unreeling mechanism of the present application.

Fig. 3 is a schematic side view of the film wrapping and unreeling mechanism of the present application.

Marking:

1-transfer roller, 11-pressure roller;

2-buffer roller group, 21-first support roller, 22-second support roller, 23-buffer roller, 231-sliding seat and 232-guide rail;

3-film coating roller groups, 30-film pasting gaps, 31-first film coating rollers, 32-second film coating rollers and 33-film pulling rollers;

4-membrane body, 41-buffer section.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, and the described embodiments are merely some, rather than all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It should be noted that: 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, the film coating unreeling mechanism provided in this embodiment may be applied to a blue film coating processing operation of an electric core, and mainly includes a plurality of transfer rollers 1, a buffer roller set 2 and a film coating roller set 3, where the plurality of transfer rollers 1, the buffer roller set 2 and the film coating roller set 3 are sequentially arranged along a conveying direction of a film body 4.

In some embodiments, a plurality of transfer rollers 1 are disposed above the buffer roller set 2, so as to facilitate engagement of the film body 4 during unreeling, and transfer the film body 4 to the buffer roller set 2.

In some embodiments, a pressure roller 11 is disposed between the output end of the transfer roller 1 and the input end of the buffer roller set 2, and by using the disposed pressure roller 11, the tightness degree of the film body 4 input to the buffer roller set 2 can be adjusted, so as to improve the status effect of the film body 4 in conveying.

As an application example, the buffer roller set 2 is disposed above the coating roller set 3, and the film body 4 is transferred to the coating roller set 3 after being wound from the buffer roller set 2. The buffer roller set 2 comprises a first support roller 21, a second support roller 22 and a buffer roller 23, wherein the buffer roller 23 can move relative to the first support roller 21 and the second support roller 22, and the film body 4 sequentially winds on the first support roller 21, the buffer roller 23 and the second support roller 22 to form a buffer section 41.

In some embodiments, the first support roller 21 and the second support roller 22 are disposed one above the other, a gap exists between the first support roller 21 and the second support roller 22, and the buffer roller 23 is disposed in a horizontal direction corresponding to the gap.

Through the buffer roller set 2, the buffer section 41 can be formed before the film body 4 is output to the film coating roller set 3 for film coating operation, and then the movement of the buffer roller 23 is controlled, so that the quality influence of the tensile force generated in the instant of film drawing on the film pasting can be reduced, the phenomenon of dark marks and bubbles is improved, and the appearance and the yield of the film coating are improved conveniently.

As one example of application thereof, the end of the buffer roller 23 is provided with a driving assembly for controlling the movement of the buffer roller 23. By providing the drive assembly, the movement of the buffer roller 23 can be controlled to achieve an adaptive supply between the buffer output and the envelope output.

In some embodiments, the drive assembly includes a slide seat 231, a guide rail 232, and a power source. The buffer roller 23 is connected with the sliding seat at the end part; the sliding seat 231 is arranged on the guide rail 232, and the relative position between the sliding seat 231 and the guide rail 232 can be adjusted; the power source may then be used to drive the position adjustment between the slide seat 231 and the guide rail 232.

By providing the sliding seat 231, the installation and the arrangement of the buffer roller 23 can be facilitated; the guide rail 232 may define a moving path of the buffer roller 23; the power source may then be provided for providing the power required by the buffer roller 23 when moving.

In some embodiments, the sliding seat 231 is slidably disposed on the guide rail 232, and the power source includes a telescopic cylinder, where the sliding seat 231 is connected to a movable end of the telescopic cylinder. The telescopic cylinder is adopted, and the sliding seat 231 and the buffer roller 23 can be driven to move by the telescopic movement of the telescopic cylinder.

In some embodiments, the sliding seat 231 and the guide rail 232 are in threaded transmission connection, for example, the guide rail 232 is configured as a transmission screw; the power source includes a motor, at this time, the guide rail 232 is in transmission connection with the motor, and the rotation of the motor drives the guide rail 232 to rotate, so as to drive the relative position of the sliding seat 231 to change. And the adoption of the structure of the screw transmission can be convenient for improving the stability and accuracy of the sliding seat 231 and the buffer roller 23 during moving.

In some embodiments, the roll surfaces of the transfer roll 1, the pressure roll 11 and the buffer roll set 2 are made of frosted materials. Through with transfer roller 1, pressure roller 11 with the roll surface of buffer roller group 2 sets up to adopt the dull polish material to make, can avoid film body 4 in carrying appear with transfer roller 1, pressure roller 11 with the phenomenon of buffer roller group 2 roll surface bonding, be convenient for improve film body 4 in carrying fluency.

As an example of one of the applications, the film coating roller group 3 includes a first film coating roller 31, a second film coating roller 32, and a film coating gap 30 is formed between the first film coating roller 31 and the second film coating roller 32.

In some embodiments, the first film coating roller 31 and the second film coating roller 32 are disposed one above the other; the roll surfaces of the first coating roll 31 and the second coating roll 32 are made of soft materials, such as rubber.

In some embodiments, the width of the film gap 30 may be set to be smaller than the thickness of the product to be film-coated.

By forming the film pasting gap 30 between the first film coating roller 31 and the second film coating roller 32, film pasting operation between the film body 4 and the product to be film-pasted can be facilitated; meanwhile, the roll surfaces of the first film coating roll 31 and the second film coating roll 32 are made of soft materials, and flexible extrusion force can be applied to the product to be film coated through the film coating gap 30, so that the film coating effect is improved.

As an example of one of the applications, the film-coating roller group 3 further includes a film-pulling roller 33, and the film-pulling roller 33 is movable to form a nip with the first film-coating roller 31 for the film body 4.

In some embodiments, the film pulling roll 33 is made of ceramic material.

Through the film pulling roller 33, the film body 4 at the output end can be clamped, so that the cutting operation of the film body 4 is facilitated, and the next product to be film-pasted is prepared.

In addition, in this embodiment, an unreeling device is further provided, and the unreeling device is provided with an envelope unreeling mechanism as described above.

Compared with the prior art, the scheme of the embodiment has at least the following beneficial effects:

in this embodiment, before the film body 4 is conveyed to the film wrapping roller set 3, a section of film body is pre-buffered at the buffer roller set 2, and when the film is pulled, the buffer roller 23 is matched with forward pushing to release the film body, so that the tension of the film body 4 unreeling mechanism can be effectively buffered, the tensile force of the film is reduced, the plastic deformation zone formed by the film body 4 under the tensile force is improved, the dark mark on the surface of the blue film is improved, and the film wrapping appearance and the yield of insulation test are improved.

Moreover, the buffer roller group 2 can buffer the unreeling tension, so that the film pulling speed can be properly increased, and the further improvement of the production beat of the whole machine can be conveniently realized.

The foregoing is merely a specific embodiment of the present application and is not intended to limit the scope of the present application, and various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. Variations and substitutions will be readily apparent to those skilled in the art within the scope of the present disclosure, and are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The film coating and unreeling mechanism comprises a film coating roller set, and is characterized in that a buffer roller set is arranged in front of the film coating roller set along the conveying direction of a film body;

2. The film wrapping and unreeling mechanism of claim 1 wherein the end of the buffer roller is provided with a drive assembly for controlling the movement of the buffer roller.

3. The film wrapping and unreeling mechanism of claim 2 wherein the drive assembly comprises a slide base, a guide rail, and a power source;

4. The film wrapping and unreeling mechanism of claim 3 wherein the sliding seat is slidably disposed on the guide rail, the power source comprises a telescopic cylinder, and the sliding seat is connected to a movable end of the telescopic cylinder.

5. A film wrapping and unreeling mechanism according to claim 3 wherein the sliding seat is in threaded driving connection with the guide rail, the power source comprises a motor, and the guide rail is in driving connection with the motor.

6. The film wrapping and unreeling mechanism of any one of claims 1 to 5, wherein a plurality of transfer rollers are provided in front of the buffer roller group in the conveying direction of the film body, and a pressure roller is provided between the transfer rollers and the buffer roller group.

7. The film wrapping and unreeling mechanism of claim 6, wherein the roller surfaces of the transfer roller, the pressure roller and the buffer roller set are made of frosted materials.

8. The film unwinding mechanism according to claim 1 or 7, wherein the film roll set comprises a first film roll and a second film roll, and a film-sticking gap is formed between the first film roll and the second film roll;

9. The film unwind mechanism of claim 8, wherein said set of film coating rollers further comprises a film pulling roller movable to form a pinch to a film body with said first film coating roller.

10. Unreeling device, characterized in that it is provided with a film-wrapping unreeling mechanism according to any one of the preceding claims 1-9.