CN210120190U - Lithium battery pole piece rolling mechanism - Google Patents
Lithium battery pole piece rolling mechanism Download PDFInfo
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- CN210120190U CN210120190U CN201920968605.8U CN201920968605U CN210120190U CN 210120190 U CN210120190 U CN 210120190U CN 201920968605 U CN201920968605 U CN 201920968605U CN 210120190 U CN210120190 U CN 210120190U
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- roller
- pole piece
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- stretching
- roll
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a lithium battery pole piece rolling mechanism, which comprises a bracket, a pole piece conveying channel is arranged in the bracket, a pressing roller component, a guide component and a stretching component are arranged in the pole piece conveying channel, the pressing roller component comprises an upper pressing roller and a lower pressing roller, a gap between the upper pressing roller and the lower pressing roller forms the pole piece rolling channel, the guide component and the stretching component are both arranged at one end of the discharge of the pole piece rolling channel, the guide component comprises a first guide roller and a second guide roller, the stretching component is arranged between the first guide roller and the second guide roller, the stretching component comprises a rotatably installed stretching roller, a first extending guide roller and a second extending guide roller which are respectively arranged at two sides below the stretching roller, an upper pressing roller and a lower pressing roller, the first guide roller, the second guide roller, the first extension guide roller and the second extension guide roller are rotatably arranged on the support, and the axial direction of each roller is transversely arranged and is vertical to the conveying direction of the pole piece conveying channel.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell technique and specifically relates to a lithium battery pole piece rolling mechanism is related to.
Background
Currently, lithium ion batteries are widely used in the fields of mobile electronic devices, electric tools, electric vehicles and electric power energy storage. The production of the lithium ion battery comprises a pole piece manufacturing process, a battery assembling process and a final liquid injection, pre-charging, formation and aging process. In the stage of pole piece manufacturing process, five processes of slurry preparation, slurry coating, pole piece rolling, pole piece slitting and pole piece drying can be subdivided.
In the pole piece rolling process, the unwinding mechanism at one end of the equipment is firstly unwound, the pole piece is rolled sequentially through the guide mechanism, the rolling mechanism, the guide mechanism and the winding mechanism, the pole piece can generate certain tensile deformation, the ternary material layer is coated on the surface of the pole piece, and the existing rolling machine has the problems of fold and fracture of the coating on the surface of the rolled pole piece due to the fact that the ductility of the pole piece is inconsistent with that of the coating in the rolling process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can effectively eliminate pole piece surface and produce fold and cracked problem behind the roll-in technology.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a lithium battery pole piece rolling mechanism comprises a bracket, a pole piece conveying channel is arranged in the bracket, a pressing roller assembly, a guide assembly and a stretching assembly are arranged in the pole piece conveying channel, the pressing roller assembly comprises an upper pressing roller and a lower pressing roller, a gap between the upper pressing roller and the lower pressing roller forms the pole piece rolling channel, the guide assembly and the stretching assembly are both arranged at one end of the discharging of the pole piece rolling channel, the guide assembly comprises a first guide roller and a second guide roller, the stretching assembly is arranged between the first guide roller and the second guide roller and comprises a stretching roller which is rotatably arranged and a first extension guide roller and a second extension guide roller which are respectively arranged at the two sides below the stretching roller, go up compression roller, lower compression roller, first guide roll, second guide roll and first deflector roll that extends and the second deflector roll that extend all rotate install in on the support, the axial of each roller be horizontal setting and with pole piece transfer passage's direction of delivery is perpendicular.
Adopt above-mentioned technical scheme, set up the extension deflector roll respectively through the both sides in stretching roller below, the deflector roll that extends contradicts to the pole piece before stretching and after stretching, forms the cornerite through two extension deflector rolls and stretching roller between, makes the pole piece play the cushioning effect at the extension in-process, improves the ductility of pole piece and the ductility of coating unanimously, improves the quality of pole piece.
Further set up as, the stretching roller both ends rotate respectively and be connected with a connecting block, one side of stretching roller is provided with the back shaft parallel with the stretching roller, the back shaft both ends with support fixed mounting, two connecting blocks are connected with the both ends of back shaft respectively.
By adopting the technical scheme, the stretching roller is positioned on one side of the supporting shaft through the arrangement of the supporting shaft and the connection of the stretching roller through the connecting block and the supporting shaft, so that the stretching roller is in a suspension stretching state, the stretching roller has certain floatability in the using process, and the stretching quality is improved.
Further, an annular concave part is arranged on the outer circular surface of the stretching roller.
By adopting the technical scheme, the annular concave part is arranged on the outer circular surface of the stretching roller, so that the pole piece is always limited in the annular concave part in the stretching process, and the stretching consistency of the pole piece is improved.
It is further provided that the depth of the annular depression is 0.2-0.5 mm.
By adopting the technical scheme, the depth dimension of the annular groove can better adapt to the thickness of the pole piece.
The pole piece conveying device is characterized in that the support comprises a front support plate and a rear support plate which are parallel to each other and are vertically arranged, and the pole piece conveying channel is formed between the front support plate and the rear support plate.
By adopting the technical scheme, the support is formed by the front support plate and the rear support plate, and the installation is convenient.
The pole piece rolling channel is characterized in that a third guide roller is arranged on one side of the feeding of the pole piece rolling channel, the first guide roller and the third guide roller are centrally symmetrical by taking a vertical surface where the central line of the pressing roller assembly is located, and the connecting surface between the topmost ends of the first guide roller and the third guide roller is lower than the pole piece rolling channel.
By adopting the technical scheme, the first guide roller and the second guide roller are symmetrically arranged on the two sides of the pole piece rolling channel, so that the length from the rolled pole piece to the stretching roller is prolonged as much as possible, and the buffer effect of the pole piece during stretching is improved.
To sum up, the utility model discloses a beneficial technological effect does: set up the extension deflector roll respectively through the both sides in stretching roller below, extend the deflector roll and contradict to the pole piece before tensile and after tensile, make the pole piece play the cushioning effect at the extension in-process, improve the ductility of pole piece and the ductility of coating unanimous, improve the quality of pole piece.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the movement of the pole piece in the present invention.
In the figure, 1, a rear support plate; 2. a front support plate; 3. an upper compression roller; 4. a lower pressing roller; 5. a first guide roller; 6. a stretching roller; 7. extending the guide roller; 8. connecting blocks; 9. a support shaft; 10. a second guide roller; 11. a third guide roller; 12. a front stretching roller; 13. a fifth guide roller; 14. an unwinding mechanism; 15. a winding mechanism; 16. a screw; a. and (6) pole pieces.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 2, for the utility model discloses a lithium battery pole piece rolling mechanism, including the support, the support includes preceding extension board 2 and the back board 1 that is parallel to each other and vertical setting, forms pole piece transfer passage between preceding extension board 2 and the back board 1, and unwinding mechanism 14 in the pole piece roll-in processing equipment is accepted to pole piece transfer passage's feed end, and winding mechanism 15 in the pole piece roll-in equipment is connected to pole piece transfer passage's discharge end.
The pole piece conveying channel is internally provided with a pressing roller assembly, a guide assembly and a stretching assembly, the pressing roller assembly comprises an upper pressing roller 3 and a lower pressing roller 4, two ends of the upper pressing roller 3 and the lower pressing roller 4 are respectively rotatably installed on the front supporting plate 2 and the rear supporting plate 1, the axial directions of the upper pressing roller 3 and the lower pressing roller 4 are vertically parallel and are perpendicular to the conveying direction of the pole piece conveying channel, and a gap between the upper pressing roller 3 and the lower pressing roller 4 forms a pole piece rolling channel. The guide assembly and the stretching assembly are both positioned at the discharge end of a pole piece rolling channel of the compression roller assembly, the guide roller set comprises a first guide roller 5 and a second guide roller 10, the stretching assembly is arranged between the first guide roller 5 and the second guide roller 10, the height of the stretching assembly from the ground is greater than that of the first guide roller 5 and the second guide roller 10, the stretching assembly comprises a stretching roller 6 and extension guide rollers 7 respectively arranged at two sides below the stretching roller 6, two ends of the stretching roller 6 are respectively connected with a connecting block 8 through rotation, a supporting shaft 9 parallel to the stretching roller 6 is arranged at one side of the stretching roller 6, two ends of the supporting shaft 9 are respectively fixedly arranged with the front supporting plate 2 and the rear supporting plate 1, the two connecting blocks 8 are respectively arranged on the supporting shaft 9 at intervals, the connecting blocks 8 are fixedly connected with the supporting shaft 9 through screws, the connection tightness between the connecting blocks 8 and the supporting shaft 9 and the overhanging position of the stretching roller 6 can be adjusted through screws, the outer circumferential surface of the stretching roller 6 is provided with an annular concave part, the depth of the annular concave part is 0.2-0.5 mm, and the depth of the annular concave part is set to be 0.3 mm in the embodiment.
The diameters of the two extension guide rollers 7 are smaller than the diameter of the stretching roller 6, the two center lines are located on the same horizontal plane, the connecting line of the shortest distance between the opposite surfaces of the two extension guide rollers 7 corresponds to the diameter of the stretching roller 6, namely when the pole pieces are sequentially wound on the extension guide rollers 7 and the stretching roller 6, the pole pieces between the extension guide rollers 7 and the stretching roller 6 are in a vertical state.
A third guide roller 11, a front stretching roller 12 and a fifth guide roller 13 are arranged between the pole piece rolling channel and the unreeling mechanism 14, the front stretching roller 12 is positioned between the third guide roller 11 and the fifth guide roller 13, the first guide roller 5 and the third guide roller 11 are centered and symmetrical with respect to a vertical plane of a central line of the press roller assembly, the front stretching roller 12 and the stretching roller 6 are centered and symmetrical with respect to a vertical plane of a central line of the press roller assembly, the second guide roller 10 and the fifth guide roller 13 are centered and symmetrical with respect to a vertical plane of a central line of the press roller assembly, a connecting surface between the top ends of the first guide roller 5 and the third guide roller 11 is lower than the pole piece rolling channel, and the pole piece rolling channel, the third guide roller 11, the front stretching roller 12 and the fifth guide roller 13 are arranged to form balance of forces of the pole piece in the pole piece conveying process with the guide assembly and the stretching assembly, so that the stretching effect of the.
As shown in fig. 2, the implementation principle of this embodiment is as follows: the unwinding mechanism 14 at one end of the device unwinds the coiled pole piece, the pole piece a is sequentially wound from the lower part of the fifth guide roller 13, the top of the front stretching roller 12 and the lower part of the third guide roller 11, then passes through a pole piece rolling channel, then is wound from the lower part of the first guide roller 5, then is wound from the left part of one of the extension guide rollers 7, is wound from the top of the stretching roller 6, is wound from the right part of the other extension guide roller 7, and finally enters the winding mechanism 15 to be wound through the lower part of the second guide roller 10.
Claims (7)
1. The utility model provides a lithium battery pole piece roll-in mechanism, includes the support, is provided with pole piece conveying channel in the support, a serial communication port, pole piece conveying channel in be provided with pressure roller subassembly, guide assembly and tensile subassembly, the pressure roller subassembly includes compression roller (3) and compression roller (4) down, go up the clearance between compression roller (3) and compression roller (4) down and form pole piece roll-in passageway, guide assembly and tensile roller (6) subassembly all establish the one end of the ejection of compact of position in pole piece roll-in passageway, guide assembly includes first guide roll (5) and second guide roll (10), tensile subassembly set up between first guide roll (5) and second guide roll (10), tensile subassembly is including tensile roller (6) of rotation installation and first extension deflector roll (7) and the second extension deflector roll (7) of locating tensile roller (6) below both sides separately, last compression roller (3), Lower compression roller (4), first guide roll (5), second guide roll (10) and first deflector roll (7) that extend and second deflector roll (7) all rotate install in on the support, the axial of each roller be horizontal setting and with pole piece transfer passage's direction of delivery is perpendicular.
2. The lithium battery pole piece rolling mechanism according to claim 1, wherein two ends of the stretching roller (6) are respectively and rotatably connected with a connecting block (8), one side of the stretching roller (6) is provided with a supporting shaft (9) parallel to the stretching roller (6), two ends of the supporting shaft (9) are fixedly installed with the bracket, and the two connecting blocks (8) are respectively connected with two ends of the supporting shaft (9).
3. The lithium battery pole piece rolling mechanism according to claim 1, wherein the outer circumferential surface of the stretching roller (6) is provided with an annular concave part.
4. The lithium battery pole piece rolling mechanism as claimed in claim 3, wherein the depth of the annular concave part is 0.2-0.5 mm.
5. The lithium battery pole piece rolling mechanism according to claim 1, wherein the support comprises a front support plate (2) and a rear support plate (1) which are parallel and vertically arranged, and the pole piece conveying channel is formed between the front support plate (2) and the rear support plate (1).
6. The lithium battery pole piece rolling mechanism according to claim 1, wherein a third guide roller (11) is arranged on one side of the feeding of the pole piece rolling channel, and the joint surface between the topmost ends of the first guide roller (5) and the third guide roller (11) is lower than the pole piece rolling channel.
7. The lithium battery pole piece rolling mechanism according to claim 1, wherein the diameter of the first extending guide roller (7) and the diameter of the second extending guide roller (7) are smaller than the diameter of the stretching roller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968605.8U CN210120190U (en) | 2019-06-25 | 2019-06-25 | Lithium battery pole piece rolling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920968605.8U CN210120190U (en) | 2019-06-25 | 2019-06-25 | Lithium battery pole piece rolling mechanism |
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| Publication Number | Publication Date |
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| CN210120190U true CN210120190U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920968605.8U Active CN210120190U (en) | 2019-06-25 | 2019-06-25 | Lithium battery pole piece rolling mechanism |
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| CN (1) | CN210120190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900324A (en) * | 2020-07-17 | 2020-11-06 | 合肥国轩高科动力能源有限公司 | Lithium battery pole piece rolling device |
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2019
- 2019-06-25 CN CN201920968605.8U patent/CN210120190U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900324A (en) * | 2020-07-17 | 2020-11-06 | 合肥国轩高科动力能源有限公司 | Lithium battery pole piece rolling device |
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