CN217239552U

CN217239552U - Lithium cell electricity core pad pasting device

Info

Publication number: CN217239552U
Application number: CN202221074860.6U
Authority: CN
Inventors: 牛志强
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-19
Anticipated expiration: 2032-05-06

Abstract

The utility model provides a lithium cell electricity core pad pasting device, fix the electric core baffle on the bottom plate and be fixed in the frame of unreeling on the bottom plate including bottom plate, two at least, it is provided with the membrane spool to unreel to rotate on the frame, it is provided with the compression roller still to slide on the bottom plate, the compression roller can roll the cooperation with electric core surface, the roll direction of compression roller is unanimous with the pull direction of protection film and covers the fixed range of electric core at least. The utility model has the advantages that: roll on electric core through the compression roller and realize automatic attached protection film, promote the pad pasting quality, avoid the emergence of the circumstances such as bubble, promote the pleasing to the eye of lithium cell to convenient follow-up processing improves the yield.

Description

Lithium cell electricity core pad pasting device

Technical Field

The utility model relates to a lithium cell production technical field especially relates to a lithium cell electricity core pad pasting device.

Background

The lithium ion battery is a secondary battery generally using lithium manganate, lithium cobaltate, lithium iron phosphate, lithium nickel cobalt manganese as a positive electrode material, artificial graphite, natural graphite as a negative electrode material, and an organic electrolyte solution. The lithium ion battery is widely applied to energy storage power systems of hydraulic power, firepower, wind power, solar power stations and the like, uninterrupted power supplies of post and telecommunications communication, and a plurality of fields of electric tools, electric bicycles, electric motorcycles, electric automobiles, military equipment, aerospace and the like.

In the processing of lithium ion batteries, particularly, an aluminum plastic film on the surface of a battery core of a polymer soft package lithium ion battery is easily scratched or adhered with dust, which easily causes the production of a large number of defective products of the battery, so that the film is required to be protected on the surface of the battery core in the processing, people usually carry out film pasting through manual work, which causes the reduction of yield and the increase of cost, and the quality of the film is not high due to the misoperation of workers, so that bubbles are easily generated, the film pasting is not neat or wrinkles are generated, and the attractiveness and the post-process processing of the lithium ion battery are affected.

The utility model discloses a utility model with publication number CN212829313U discloses a protection film device is pasted to electric core, place electric core in positioning mechanism, be in the positioning mechanism tip after a plurality of slitting are walked around to the protection film of coiling, pulling positioning mechanism slides and stimulates the protection film simultaneously and extends and cover electric core, then decide the protection film through cutting the sword can, this scheme protection film and electric core surface need be in the same place through the mode laminating of manual pressing, and the protection film can directly paste on electric core after the protection film is cut off, then lift the pad pasting again in manual, quality problems such as bubble appear easily in the pad pasting in-process, though it is more convenient to relative pure manual pad pasting, nevertheless there is the apparent improvement to the pad pasting quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electric core pad pasting device of completion pad pasting that can be high-quality is provided.

The utility model discloses a solve above-mentioned technical problem through following technical scheme: the utility model provides a lithium cell electricity core pad pasting device, includes bottom plate, at least two fixes the electric core baffle on the bottom plate and is fixed in the frame of unreeling on the bottom plate, it is provided with the membrane spool to unreel to rotate on the frame, it is provided with the compression roller still to slide on the bottom plate, the compression roller can roll with electric core surface and cooperate, the roll direction of compression roller is unanimous with the pull direction of protection film and covers the fixed range of electric core at least.

The utility model discloses during the use with electric core place in the within range of electricity core baffle, directly follow the membrane spool and go up the manual position of drawing the protection film and covering electric core to make the protection film take-up prevent that it from descending naturally to electric core on the surface, roll along electric core surface through the compression roller with the protection film paste on electric core can, wrap up and accomplish the back and manually cut off the protection film and wait for next operation. Roll on electric core through the compression roller and realize automatic attached protection film, promote the pad pasting quality, avoid the emergence of the circumstances such as bubble, promote the pleasing to the eye of lithium cell to convenient follow-up processing improves the yield.

Preferably, two sides of the bottom plate are respectively provided with a sliding rail, and two ends of the compression roller are respectively connected with sliding blocks matched with the sliding rails.

Preferably, two ends of the press roller are respectively rotatably arranged on a vertical plate, a transverse plate with two ends respectively fixedly connected with the upper end of the vertical plate is arranged above the press roller, and the outer sides of the two vertical plates are respectively fixedly connected with one sliding block.

Preferably, unreel the frame including built on stilts fixed unreel the roller, the membrane spool wears to establish unreel on the roller, membrane spool both sides still are provided with the cover respectively and establish the membrane of fixing on unreeling the roller and roll up the stopper.

Preferably, the film roll limiting block is provided with a positioning bolt in a penetrating manner along the radial direction, and the positioning bolt can rotate to abut against the surface of the unwinding roller.

Preferably, the both sides of unreeling the frame still articulate respectively and are connected with a swinging arms, both sides fixed being provided with a tension lever on the swinging arms, be provided with the torsional spring on the articulated shaft that swinging arms and unreel the frame and be connected, the tension lever is close to the surface of bottom plate under the natural state.

Preferably, a first conveying roller and a second conveying roller are sequentially arranged between the tension rod and the battery cell baffle, and the height of the first conveying roller is higher than that of the second conveying roller.

Preferably, be provided with two diaphragm stoppers on first transfer roller and the second transfer roller respectively, the protection film is walked around first transfer roller top from tension bar below and is walked around second transfer roller below again, and the protection film is followed two pass between the diaphragm stopper.

Preferably, the battery cell baffle is of an L-shaped structure, and the battery cell can abut against the side faces of the two battery cell baffles and is limited between the end faces of the two battery cell baffles.

Preferably, the distance between the end faces of the two battery cell baffles is slightly larger than the length of the battery cell, a cutter groove is formed in the battery cell baffle close to one side of the film reel, and the length direction of the cutter groove is parallel to the axial direction of the film reel.

The utility model provides a lithium cell electricity core pad pasting device's advantage lies in: roll on electric core through the compression roller and realize automatic attached protection film, promote the pad pasting quality, avoid the emergence of the circumstances such as bubble, promote the pleasing to the eye of lithium cell to convenient follow-up processing improves the yield. When using, through the continuous tensile force that provides of tension pole to the protection film, prevent that the protection film pine from taking off and falling on electric core or bottom plate 1's surface, improve the pad pasting quality. The direction of the protective film is limited by the film rolling limiting block and the film limiting block, so that deflection is prevented.

Drawings

Fig. 1 is a schematic view of a lithium battery cell film pasting device provided by an embodiment of the present invention;

fig. 2 is a schematic view of a press roller of a lithium battery cell film pasting device provided by an embodiment of the present invention;

fig. 3 is a schematic diagram of a protective film path of the lithium battery cell film pasting device provided by the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below in detail and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment provides a film pasting device for a lithium battery cell, which includes a bottom plate 1, at least two cell baffles 2 fixed on the bottom plate 1, and an unwinding frame 3 fixed on the bottom plate 1, wherein a film reel 31 is rotatably disposed on the unwinding frame 3, a protective film 32 is wound on the film reel 31, a compression roller 4 is further slidably disposed on the bottom plate 1, the compression roller 4 can be in rolling fit with a surface of a battery cell (not shown), and a rolling direction of the compression roller 4 and a drawing direction of the protective film 32 always and at least cover a fixed range of the battery cell, that is, ranges of the at least two cell baffles 2.

This embodiment rolls through compression roller 4 on electric core and realizes automatic attached protection film, promotes the pad pasting quality, avoids the emergence of the circumstances such as bubble, promotes the pleasing to the eye of lithium cell to convenient follow-up processing improves the yield.

Place electric core during the use in the within range of electricity core baffle 2, directly from the membrane spool 31 on the manual position of drawing protection film 32 to cover electric core to make protection film 32 take-up prevent that it from descending naturally to electric core on the surface, through compression roller 4 along electric core surface roll with protection film 32 paste on electric core can, after the parcel is accomplished with protection film 32 manual cut-off wait for next operation.

Specifically, the two sides of the bottom plate 1 are respectively provided with a slide rail 11, the two ends of the compression roller 4 are respectively connected with a slide block 41 matched with the slide rail 11, with reference to fig. 2, the two ends of the compression roller 4 are respectively rotatably arranged on a vertical plate 42, a horizontal plate 43 is arranged above the compression roller 4, the two ends of the horizontal plate are respectively fixedly connected with the upper end of the vertical plate 42, the slide blocks 41 are respectively and fixedly connected to the outer sides of the two vertical plates 42, when a film pasting operation is performed, the horizontal plate 43 can be manually controlled to transversely move, and the slide block 41 on at least one side can be driven to slide through a telescopic cylinder and other structures, so that the automatic rolling of the protection film 32 is realized.

And a limiting block 44 abutted against the compression roller 4 is further arranged on one side of the bottom plate 1 far away from the film reel 31 so as to prevent the compression roller 4 from sliding away from the bottom plate 1 along the slide rail 11.

Referring to fig. 1 again, unreel frame 3 including built on stilts fixed unreel roller 33, film spool 31 wears to establish unreel on the roller 33, film spool 31 both sides still are provided with the cover respectively and establish the stopper 34 is rolled up to the film of fixing on unreeling roller 33, fix a position film spool 31, radially wear to be equipped with positioning bolt (not shown) on the stopper 34 is rolled up to the film, and the stopper 34 is rolled up to the film through screwing up positioning bolt messenger's tip butt unreel roller 33's surface and fix a position film.

Further, the both sides of unreeling frame 3 still articulate respectively and are connected with a swinging arms 35, both sides respectively fixed being provided with a tension bar 36 on the swinging arms 35, be provided with the torsional spring on the articulated shaft that swinging arms 35 and unreel frame 3 are connected, tension bar 36 is close to the surface of bottom plate 1 under the natural state, and this embodiment is in the position that is close to bottom plate 1 surface through torsional spring drive tension bar 36, and when using, upwards draws the tension bar 36 through protection film 32 and rises, makes tension bar 36 to the providing tensile force that protection film 32 lasts, prevents that protection film 32 pine from taking off on electric core or bottom plate 1's surface, improves the pad pasting quality.

First transfer roller 12 and second transfer roller 13 have set gradually between tension pole 36 and electric core baffle 2, the height of first transfer roller 12 is higher than second transfer roller 13, and the high adaptability setting of second transfer roller 13 generally requires to be higher than electric core surface height.

Referring to fig. 3, the path of the protective film 32 is sequentially from below the tension rod 36, above the first conveying roller 12 and below the second conveying roller 13, in order to prevent the protective film 32 from deflecting, two film stoppers 14 are respectively disposed on the first conveying roller 12 and the second conveying roller 13, the film stoppers 14 may be fixed in the same manner as the film roll stopper 34, and the protective film 32 passes between the two film stoppers 14.

Referring to fig. 1 again, the cell baffles 2 are of an L-shaped structure, the cell can abut against the side surfaces of the two cell baffles 2 and is limited between the end surfaces of the two cell baffles 2, and the distance between the end surfaces of the two cell baffles 2 should be slightly greater than the length of the cell, and those skilled in the art should know that the distance between the cell baffles 2 is slightly greater than the length of the cell, so as to facilitate taking and placing the cell, and prevent the cell from being damaged due to too tight engagement, which should be clear to those skilled in the art.

The battery core baffle 2 close to one side of the film reel 31 is provided with a cutter groove 21, the length direction of the cutter groove 21 is parallel to the axis of the film reel 31, after film pasting is completed, a hand-held cutter is used for cutting the protective film 32 along the cutter groove 21, the end part of the cut protective film 32 is pasted at the edge of the cutter groove 21, and the whole protective film 32 is kept tensioned under the action of a tension rod 36.

The usage of the battery cell film pasting device provided by the embodiment is as follows: firstly, the film reel 31 is correctly installed on the unwinding roller 33 and is fixed through the film roll limiting block 34, the end part of the protective film 32 is pulled to enable the protective film to sequentially bypass the lower part of the tension rod 36, the upper part of the first conveying roller 12 and the lower part of the second conveying roller 13, the compression roller 4 is located on one side close to the limiting block 44, the battery cell is placed in the battery cell baffle 2, the end part of the protective film 32 is pulled to cover the surface of the battery cell, the end part of the protective film 32 can exceed the end part of the battery cell and generally exceed 1-2mm, then the compression roller 4 is controlled to roll on the surface of the battery cell, the protective film is perfectly attached to the battery cell, after the attachment is completed, the protective film 32 is cut off along the cutter groove 21 by using a cutter, and the battery cell can be taken down.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a lithium cell electricity core pad pasting device which characterized in that: including bottom plate, two at least electric core baffles of fixing on the bottom plate and be fixed in the frame of unreeling on the bottom plate, it is provided with the membrane spool to unreel to rotate on the frame, it is provided with the compression roller still to slide on the bottom plate, the compression roller can roll the cooperation with electric core surface, the roll direction of compression roller is unanimous with the pull direction of protection film and covers the fixed range of electric core at least.

2. The lithium battery cell film pasting device of claim 1, characterized in that: two sides of the bottom plate are respectively provided with a sliding rail, and two ends of the compression roller are respectively connected with sliding blocks matched with the sliding rails.

3. The lithium battery cell film pasting device of claim 2, characterized in that: the two ends of the compression roller are respectively rotatably arranged on a vertical plate, a transverse plate with two ends respectively fixedly connected with the upper end of the vertical plate is arranged above the compression roller, and the outer sides of the two vertical plates are respectively fixedly connected with one sliding block.

4. The lithium battery cell film pasting device of claim 1, characterized in that: unreel the frame including built on stilts fixed unreel the roller, the membrane spool wears to be established unreel on the roller, membrane spool both sides still are provided with the cover respectively and establish the membrane book stopper of fixing on unreeling the roller.

5. The lithium battery cell film pasting device of claim 4, characterized in that: and the film roll limiting block is provided with a positioning bolt along the radial direction, and the positioning bolt can rotate the surface of the abutting unreeling roller.

6. The lithium battery cell film pasting device of claim 4, characterized in that: the two sides of the unreeling rack are respectively hinged with a swing rod, two sides of the swing rod are fixedly provided with a tension rod, the swing rod is provided with a torsion spring on a hinged shaft connected with the unreeling rack, and the tension rod is close to the surface of the bottom plate in a natural state.

7. The lithium battery cell film pasting device of claim 6, characterized in that: and a first conveying roller and a second conveying roller are sequentially arranged between the tension rod and the battery core baffle, and the height of the first conveying roller is higher than that of the second conveying roller.

8. The lithium battery cell film pasting device of claim 7, characterized in that: be provided with two diaphragm stoppers on first transfer roller and the second transfer roller respectively, the protection film is walked around first transfer roller top from tension pole below and is walked around second transfer roller below again, and the protection film is followed two pass between the diaphragm stopper.

9. The lithium battery cell film pasting device of claim 1, characterized in that: the battery core baffle is of an L-shaped structure, and the battery core can be abutted against the side faces of the two battery core baffles and limited between the end faces of the two battery core baffles.

10. The lithium battery cell film pasting device of claim 9, characterized in that: the distance between the end faces of the two battery cell baffles is slightly larger than the length of the battery cell, a cutter groove is formed in the battery cell baffle close to one side of the film reel, and the length direction of the cutter groove is parallel to the axial direction of the film reel.