CN217597887U - Pole piece rolling device - Google Patents
Pole piece rolling device Download PDFInfo
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- CN217597887U CN217597887U CN202221032670.8U CN202221032670U CN217597887U CN 217597887 U CN217597887 U CN 217597887U CN 202221032670 U CN202221032670 U CN 202221032670U CN 217597887 U CN217597887 U CN 217597887U
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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 pole piece roll-in device, pole piece roll-in device include first utmost point ear extension mechanism, rolling mechanism, second utmost point ear extension mechanism, unwinding mechanism and winding structure. First utmost point ear extension mechanism and second utmost point ear extension mechanism place on the tape transport route of pole piece, and first utmost point ear extension mechanism and second utmost point ear extension mechanism set up respectively in the relative both sides of rolling mechanism. The first tab extending mechanism is used for extending a tab area of the pole piece before rolling, and the second tab extending mechanism is used for extending the tab area of the pole piece after rolling for the second time. The rolling mechanism is used for rolling the film coating area and the tab area of the pole piece, the unreeling mechanism is used for setting the pole piece, and the reeling mechanism is used for reeling the pole piece. The utility model discloses a pole piece roll-in device through first utmost point ear extension mechanism with second utmost point ear extension mechanism replaces mechanical tension system, can accurate control roll-in before and the extension volume in roll-in back utmost point ear district.
Description
Technical Field
The utility model relates to a battery technology field specifically relates to a pole piece roll-in device.
Background
The production process of the lithium battery pole piece comprises the working procedures of stirring, coating, rolling, cutting of the pole lugs and the like. The lithium battery pole piece is divided into a film coating area and a tab area, the thickness of the film coating area is higher than that of the tab area, the film coating area is tightly attached to a roller in the rolling process, foil of the film coating area extends greatly under the pressure of the roller, the tab area is in a suspension state, the foil of the tab area extends slightly under the pressure of the roller, and the joint of the film coating area and the tab area is prone to wrinkling due to the fact that the extension of the film coating area and the extension of the tab area are inconsistent.
Patent CN212708163U discloses a lithium battery pole piece roll-in device, it is through setting up utmost point ear district magnetic induction heating mechanism before the roll-in, thereby combines the extension that utmost point ear district was realized to utmost point ear stretching mechanism before the roll-in simultaneously and realizes improving thereby that the rolling pole piece coating area is inconsistent with the extension in utmost point ear district and leads to pole piece fold, disconnected area scheduling problem. But the problem of obvious pole piece fold still exists in the extension of utmost point ear district before this kind of scheme can't accurate control rolling, and the reservation of mechanical utmost point ear tension mechanism leads to the rolling disconnected tape condition still more.
Therefore, a pole piece rolling device capable of accurately controlling the extension amount of the pole lugs before and after rolling and avoiding the rolling strip breakage caused by a mechanical pole lug stretching mechanism is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a pole piece roll-in device is provided, the extension inconsistent, the residual stress is big, obvious fold scheduling problem that mechanical utmost point ear tension mechanism leads to is just avoided to utmost point ear extension volume around can the accurate control roll-in.
In order to solve the technical problem, the utility model provides a pole piece rolling device, which comprises a first pole lug extending mechanism, a rolling mechanism, a second pole lug extending mechanism, an unreeling mechanism and a reeling structure; the first tab extending mechanism and the second tab extending mechanism are placed on a tape running path of the pole piece, the first tab extending mechanism and the second tab extending mechanism are respectively arranged on two opposite sides of the rolling mechanism, the first tab extending mechanism is used for extending a tab area of the pole piece before rolling, and the second tab extending mechanism is used for secondarily extending the tab area of the pole piece after rolling; the rolling mechanism is arranged on a tape travelling path of the pole piece and is used for rolling a film coating area and a tab area of the pole piece; the unwinding mechanism is located at the upstream of the first tab extending mechanism and used for setting a pole piece, and the winding mechanism is located at the downstream of the second tab extending mechanism and used for winding the pole piece.
In an embodiment of the utility model, the roll-in mechanism includes first roll-in roller and second roll-in roller, first roll-in roller and second roll-in roller set up relatively, the coating area and the utmost point ear area of pole piece are followed first roll-in roller with pass through between the second roll-in roller.
The utility model discloses an in the embodiment, first utmost point ear extension mechanism with second utmost point ear extension mechanism is non-contact magnetic induction heating mechanism for through electromagnetic induction heating the utmost point ear district of pole piece is in order to improve the ductility in utmost point ear district.
In an embodiment of the present invention, the non-contact magnetic induction heating mechanism includes a first heating plate and a second heating plate which are distributed at intervals, and the first heating plate and the second heating plate have adjustable spacing distances therebetween.
In an embodiment of the present invention, the present invention further includes: the first tension control mechanism is positioned between the unwinding structure and the first tab extending mechanism and used for controlling the unwinding tension of the pole piece; and the second tension control mechanism is positioned between the second pole lug extending mechanism and the rolling structure and is used for controlling the rolling tension of the pole pieces.
In an embodiment of the present invention, the present invention further includes: the first main transmission mechanism is positioned between the unwinding mechanism and the first tab extending mechanism; and the second main transmission mechanism is positioned between the second lug extending mechanism and the winding mechanism.
The utility model discloses an in the embodiment, first main drive with second main drive respectively including relative drive roll that sets up with glue the compression roller, the pole piece is followed the drive roll with glue and pass through between the compression roller, the drive roll is used for driving the pole piece is walked according to the speed of setting for, glue the compression roller and be used for the cooperation the drive roll is walked and is taken, is used for tension to cut off simultaneously.
In an embodiment of the present invention, the present invention further includes: and the thickness measuring mechanism is positioned at the downstream of the second pole lug extending mechanism and is used for monitoring the thickness of the pole piece after rolling in real time.
In an embodiment of the present invention, the present invention further includes: the first deviation correcting mechanism is positioned between the unwinding mechanism and the first tab extending mechanism and used for controlling the unwinding alignment degree of the pole piece; and the second deviation rectifying mechanism is positioned between the second pole lug extending mechanism and the winding mechanism and is used for controlling the winding alignment degree of the pole pieces.
The utility model discloses a pole piece roll-in device through set up first utmost point ear extension mechanism respectively around the roll-in mechanism with second utmost point ear extension mechanism replaces mechanical stretching mechanism, can accurate control roll-in before and the extension volume of roll-in back utmost point ear district, can avoid extension inconsistent, the residual stress that mechanical utmost point ear stretching mechanism leads to simultaneously big, obvious fold scheduling problem.
Drawings
In order to make the aforementioned 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, wherein:
fig. 1 is a schematic structural diagram of a pole piece according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a pole piece rolling device according to an embodiment of the present invention;
fig. 3 is a front view of a non-contact heating mechanism according to an embodiment of the present invention;
FIG. 4 is a side view of the non-contact heating mechanism shown in FIG. 3;
fig. 5 is an enlarged view of a tab area according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited by the specific embodiments disclosed below.
As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood, not simply by the actual terms used but by the meaning of each term lying within.
Hereinafter, embodiments of the present invention will be described based on the drawings. However, the following examples are illustrative of the pole piece rolling device and the pole piece rolling method for embodying the technical idea of the present invention, and the pole piece rolling device and the pole piece rolling method of the present invention are not specifically defined as follows. In the present specification, the members shown in the columns of "claims" and "contents of utility" are assigned numbers corresponding to the members shown in the examples in order to make the scope of the claims easier to understand. However, the members shown in the claims are by no means specified as members of the embodiments. In particular, the dimensions, materials, shapes, relative arrangements of the constituent members, and the like described in the embodiments are not intended to limit the scope of the present invention to these, unless otherwise specified, but merely as illustrative examples.
However, the dimensions, positional relationships, and the like of the members shown in the drawings may be exaggerated for clarity of description. In the following description, the same names and symbols indicate the same or similar members, and detailed description thereof will be omitted as appropriate. Further, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and one member shares a plurality of elements, or conversely, the function of one member may be shared by a plurality of members. Note that the contents described in some of the examples and embodiments can be applied to other examples and embodiments. In the present specification, the term "upper" is used not only to mean a case where the upper surface is in contact with the upper surface, but also to include a case where the upper surface is formed separately, and also to include a case where a layer is interposed between layers.
Fig. 1 is a schematic structural diagram of a pole piece 10 according to an embodiment of the present invention. As shown in fig. 1, in the production of the pole piece, a coating film area 101 is formed by covering a coating film material at the middle position of the foil, and a tab area 102a and a tab area 102b are formed by cutting a portion of the foil at the margin area on both sides of the foil by a laser cutting technique. The thickness of the film coating region 101 is greater than the thickness of the tab region 102a and the tab region 102b. During rolling, the film coating area 101 is tightly attached to a roller, the foil of the film coating area 101 is greatly expanded under the pressure of the roller, the tab area 102a and the tab area 102b are in a suspension state, the foil of the tab area 102a and the tab area 102b is slightly expanded under the pressure of the roller, and the joint of the film coating area 101, the tab area 102a and the tab area 102b is easily wrinkled due to inconsistent expansion of the film coating area 101, the tab area 102a and the tab area 102b.
Fig. 2 is a schematic structural diagram of a pole piece rolling device 200 according to an embodiment of the present invention. As shown in fig. 2, the rolling device 200 for pole pieces of lithium batteries includes a first tab extension mechanism 22, a rolling mechanism 23, a second tab extension mechanism 24, an unwinding mechanism 21, and a winding mechanism 25. First utmost point ear extension mechanism 22 and second utmost point ear extension mechanism 24 place on the tape transport route of pole piece 10, and first utmost point ear extension mechanism 22 and second utmost point ear extension mechanism 24 set up respectively in the relative both sides of rolling mechanism 24. The first tab extension mechanism 22 is used for extending the tab area of the pole piece 10 before the roll pressing. The second pole lug extension mechanism 24 is used for carrying out secondary extension on the pole lug area of the rolled pole lug 10. The rolling mechanism 23 is disposed on the tape path of the pole piece 10, and is used for rolling the film coating area and the tab area of the pole piece 10. The unwinding mechanism 21 is located upstream of the first tab extending mechanism 22, and is used for setting a pole piece. And the winding mechanism 25 is positioned at the downstream of the second pole lug extending mechanism 24 and is used for winding the pole pieces.
In the present embodiment, the rolling mechanism 23 includes a first rolling roller 231 and a second rolling roller 232. The first roller 231 and the second roller 232 are oppositely disposed. The coating and tab regions of the pole piece 10 pass between the first and second rollers 231, 232 to reduce the thickness of the pole piece 10 and increase the energy density of the battery.
In some embodiments, the first tab extension mechanism 22 and the second tab extension mechanism 24 are non-contact magnetic induction heating mechanisms for heating the foil in the tab zone of a pole piece by electromagnetic induction to increase the extensibility of the tab zone. Fig. 3 is a front view of a non-contact magnetic induction heating mechanism 300 according to an embodiment of the present invention. Fig. 4 is a side view of the non-contact magnetic induction heating mechanism 300 shown in fig. 3. Fig. 5 is an enlarged view of a tab area according to an embodiment of the present invention. Referring to fig. 3 to 5, the non-contact magnetic induction heating mechanism 300 includes the high-frequency magnetic induction heater 30 and the first heating device 31. The first heating device 31 includes a first heating plate 311, a second heating plate 312, and a first support 313. One ends of the first and second heating plates 311 and 312 are coupled to the first support 313, and the first and second heating plates 311 and 312 are movable in the first direction D1. The high frequency magnetic induction heater 30 rotates through the motor to drive the first support 313 to rotate, and then drives the first heating plate 311 and the second heating plate 312 on the first support 313 to rotate around the tab zone 102a of the pole piece 10, and heats the tab zone 102a through electromagnetic induction, so as to improve the ductility of the tab zone 102a, and simultaneously eliminate the residual stress of the extension of the foil in the tab zone 102 a. In the present embodiment, the noncontact magnetic induction heating mechanism 300 further includes a high-frequency magnetic induction heater 32 and a second heating device 33. The second heating device 33 includes a third heating plate 331, a fourth heating plate 332, and a second support 333. One ends of the third heating plate 331 and the fourth heating plate 332 are coupled to the second support 333, and the third heating plate 331 and the fourth heating plate 332 are movable in the first direction D1. The high-frequency magnetic induction heater 32 rotates through the motor to drive the second support 333 to rotate, further drives the third heating plate 331 and the fourth heating plate 332 on the second support 333 to rotate around the tab area 102b of the pole piece 10, and heats the tab area 102b through electromagnetic induction to improve the ductility of the tab area 102b and eliminate the residual stress of the extension of the foil material in the tab area 102b.
As shown in fig. 3, the non-contact magnetic induction heating mechanism 300 further includes a position adjusting device 34 and a position adjusting device 35. The position adjusting means 34 is used to adjust the distance between the first and second heating plates 311 and 312 and the tab region 102a in the first direction D1 (vertical direction in the drawing) and the distance between the first and second heating plates and the coating region 101 in the second direction D2 (horizontal direction in the drawing). Wherein the first direction D1 is perpendicular to the second direction D2. The position adjusting device 35 is used for adjusting the distance between the third heating plate 331 and the fourth heating plate 332 and the tab region 102b in the first direction D1 and the distance between the third heating plate and the coating region 101 in the second direction D2. In some embodiments, as shown in fig. 5, a distance S1 between the first heating plate 311 and a front surface (an upper surface in the drawing) of the tab region 102a in the first direction D1 is 0.5 to 20mm, and a distance S2 between the second heating plate 312 and a reverse surface (a lower surface in the drawing) of the tab region 102a in the first direction D1 is equal to the distance S1. The distance S3 between the first heating plate 311 and the second heating plate 312 and the coating region 101 in the second direction D2 is 0 to 3.0mm. The distance S4 between the third heating plate 331 and the front surface (upper surface in the drawing) of the tab region 102b in the first direction D1 is 0.5 to 20mm, and the distance S5 between the fourth heating plate 332 and the back surface (lower surface in the drawing) of the tab region 102b in the first direction D1 is equal to the distance S4. The distance S6 between the third heating plate 331 and the fourth heating plate 332 and the film coating area 101 in the second direction D2 is 0-3.0 mm.
In order to further understand the utility model discloses a pole piece rolling-in device 200, use first utmost point ear extension structure and second utmost point ear extension structure as non-contact magnetic induction heating mechanism 300 as an example below, the use step of pole piece rolling-in device 200 is explained in detail: firstly, arranging a pole piece 10 to be rolled on an unreeling structure 21; the traction pole piece 10 sequentially passes through a first pole lug extension structure 22, a rolling mechanism 23 and a second pole lug extension structure 24, and then the pole piece 10 is arranged on a winding mechanism 25; adjusting the vertical distance between the first tab extending structure 22 and the second tab extending structure 24 and the tab area 102a and the tab area 102b of the pole piece 10 and the horizontal distance between the first tab extending structure and the second tab extending structure and the film coating area 101; setting power and temperature parameters of the first tab extension structure 22 and the second tab extension structure 24, respectively; the pole piece 10 is driven at a speed of 1.0-5.0 m/min; opening the first tab extension 22 and the second tab extension 24; after the temperature of the first tab extending structure 22 and the second tab extending structure 24 is raised to a set temperature, the pole piece is raised to a speed of 60-100 m/min for tape transport; when the pole piece rolling device 200 needs to be stopped, the first pole lug extending structure 22 and the second pole lug extending structure 24 are closed 5 to 60 seconds in advance, and then the whole pole piece rolling device 200 is closed.
As shown in fig. 2, in an embodiment of the present invention, the rolling device 200 further includes a thickness measuring mechanism 26. And the thickness measuring mechanism 26 is positioned at the downstream of the second pole lug extending mechanism 24 and is used for monitoring the thickness of the rolled pole piece 10 in real time.
In some embodiments, the roller device 200 further includes a first tension control mechanism 271 and a second tension control mechanism 272. The first tension control mechanism 271 is located between the unwinding structure 21 and the first tab extending mechanism 22. The first tension control mechanism 271 is used for controlling the unwinding tension of the pole piece 10. The second tension control mechanism 272 is located between the second lug extension mechanism 24 and the winding mechanism 25. The second tension control mechanism 272 is used for controlling the winding tension of the pole piece 10.
In an embodiment of the present invention, the rolling device 200 further includes a first main transmission 281 and a second main transmission 282. The first main transmission mechanism 281 is located between the unwinding structure 21 and the first tab extending mechanism 22. Further, in the present embodiment, the first main transmission mechanism 281 is located between the first tension control mechanism 271 and the first tab extension mechanism 22. The second main drive mechanism 282 is located between the second lug extension mechanism 24 and the winding mechanism 25. Further, in the present embodiment, the second main transmission mechanism 282 is located between the thickness measuring mechanism 26 and the winding mechanism 25. As shown in fig. 2, in some embodiments, the first main transmission mechanism 281 includes a driving roller 281a and a glue pressing roller 281b, the driving roller 281a is used for driving the pole piece 10 to move at a set speed, and the glue pressing roller 281b is used for cooperating with the driving roller 281a to drive the pole piece 10 to move at the set speed and for tension separation. The glue pressing roller 281b partitions tension on the pole piece 10 in different areas, and prevents the pole piece from being broken due to inconsistent tension in the same area. The second main transmission mechanism 282 includes a drive roller 282a and an adhesive pressing roller 282b. The second main transmission mechanism 282 has the same structure as the first main transmission mechanism 281, and will not be described herein.
In an embodiment of the present invention, the rolling device 200 further includes a first deviation rectifying mechanism 291 and a second deviation rectifying mechanism 292. The first deviation correcting mechanism 291 is located between the unwinding structure 21 and the first tab extending mechanism 22. Further, the first deviation correcting mechanism 291 is located between the first main transmission mechanism 281 and the first tab extending mechanism 22. The first deviation correcting mechanism 291 is used for controlling the unwinding alignment degree of the pole piece 10. The second deviation rectification mechanism 292 is located between the second lug extending mechanism 24 and the winding mechanism 25. Further, a second deviation correcting mechanism 292 is located between the second main gear 282 and the second tension control mechanism 272. The second deviation rectification mechanism 292 is used for controlling the winding alignment degree of the pole piece 10.
The utility model discloses a pole piece roll-in device is felt heating mechanism and is replaced mechanical stretching mechanism through first magnetism and feel heating mechanism with second magnetism, can accurate control roll-in before with roll-in after utmost point ear district's extension volume, extension inconsistent, the residual stress that can avoid mechanical utmost point ear stretching mechanism to lead to simultaneously is big, obvious fold scheduling problem.
While various presently contemplated embodiments have been discussed in the foregoing disclosure by way of example, it should be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments of the invention. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the invention, various features are sometimes incorporated in an embodiment, figure, or description thereof in order to simplify the description of the present disclosure and thereby aid in the understanding of one or more embodiments of the present disclosure. This method of disclosure, however, is not intended to suggest that more features are required than are set forth in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single disclosed embodiment.
Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, in the specific embodiments, such numerical values are set forth as precisely as possible within the scope of the application.
Although the present invention has been described with reference to the present specific embodiments, it will be understood by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the present invention, and therefore, changes and modifications to the above embodiments within the spirit of the present invention will fall within the scope of the claims of the present application.
Claims (9)
1. A pole piece rolling device is characterized by comprising a first pole lug extending mechanism, a rolling mechanism, a second pole lug extending mechanism, an unreeling mechanism and a reeling mechanism;
the first tab extending mechanism and the second tab extending mechanism are placed on a tape running path of the pole piece, the first tab extending mechanism and the second tab extending mechanism are respectively arranged on two opposite sides of the rolling mechanism, the first tab extending mechanism is used for extending a tab area of the pole piece before rolling, and the second tab extending mechanism is used for extending the tab area of the pole piece after rolling for the second time;
the rolling mechanism is arranged on a tape travelling path of the pole piece and is used for rolling a film coating area and a tab area of the pole piece;
the unwinding mechanism is located at the upstream of the first tab extending mechanism and used for setting a pole piece, and the winding mechanism is located at the downstream of the second tab extending mechanism and used for winding the pole piece.
2. The pole piece rolling device of claim 1, wherein the rolling mechanism comprises a first rolling roller and a second rolling roller, the first rolling roller and the second rolling roller are oppositely arranged, and the coating area and the tab area of the pole piece pass between the first rolling roller and the second rolling roller.
3. The pole piece rolling device according to claim 1, wherein the first and second pole lug extension mechanisms are non-contact magnetic induction heating mechanisms for heating the pole lug area of the pole piece by electromagnetic induction to improve the extensibility of the pole lug area.
4. The pole piece rolling apparatus of claim 3, wherein the non-contact magnetic induction heating mechanism comprises a first heating plate and a second heating plate which are spaced apart from each other, and the spacing distance between the first heating plate and the second heating plate is adjustable.
5. The pole piece rolling apparatus of claim 1, further comprising:
the first tension control mechanism is positioned between the unwinding structure and the first tab extending mechanism and used for controlling the unwinding tension of the pole piece;
and the second tension control mechanism is positioned between the second pole lug extending mechanism and the winding structure and is used for controlling the winding tension of the pole pieces.
6. The pole piece rolling apparatus of claim 1, further comprising:
the first main transmission mechanism is positioned between the unreeling mechanism and the first tab extending mechanism;
and the second main transmission mechanism is positioned between the second lug extending mechanism and the winding mechanism.
7. The pole piece rolling device according to claim 6, wherein the first main transmission mechanism and the second main transmission mechanism respectively comprise a driving roller and a glue pressing roller which are oppositely arranged, the pole piece passes through between the driving roller and the glue pressing roller, the driving roller is used for driving the pole piece to move at a set speed, and the glue pressing roller is used for cooperating with the driving roller to move and simultaneously used for tension separation.
8. The pole piece rolling apparatus of claim 1, further comprising: and the thickness measuring mechanism is positioned at the downstream of the second pole lug extending mechanism and is used for monitoring the thickness of the pole piece after rolling in real time.
9. The pole piece rolling apparatus of claim 1, further comprising:
the first deviation correcting mechanism is positioned between the unwinding mechanism and the first tab extending mechanism and used for controlling the unwinding alignment degree of the pole pieces;
and the second deviation rectifying mechanism is positioned between the second pole lug extending mechanism and the winding mechanism and is used for controlling the winding alignment degree of the pole pieces.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221032670.8U CN217597887U (en) | 2022-04-29 | 2022-04-29 | Pole piece rolling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221032670.8U CN217597887U (en) | 2022-04-29 | 2022-04-29 | Pole piece rolling device |
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| CN217597887U true CN217597887U (en) | 2022-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503258A (en) * | 2022-11-17 | 2022-12-23 | 江苏时代新能源科技有限公司 | Utmost point ear stretching device and pole piece production system |
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2022
- 2022-04-29 CN CN202221032670.8U patent/CN217597887U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115503258A (en) * | 2022-11-17 | 2022-12-23 | 江苏时代新能源科技有限公司 | Utmost point ear stretching device and pole piece production system |
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