CN215677865U - Device for quantifying degree of tension of pole piece - Google Patents
Device for quantifying degree of tension of pole piece Download PDFInfo
- Publication number
- CN215677865U CN215677865U CN202121791816.2U CN202121791816U CN215677865U CN 215677865 U CN215677865 U CN 215677865U CN 202121791816 U CN202121791816 U CN 202121791816U CN 215677865 U CN215677865 U CN 215677865U
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- China
- Prior art keywords
- pole piece
- cutter
- base
- spring
- rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 238000013139 quantization Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a device for quantifying the drawing degree of a pole piece, and belongs to the technical field of battery cell pole pieces. The pole piece coating device comprises a base, wherein one side of the base is provided with a pole piece coating area, the other side of the base is provided with a pole piece blank area, and a cutter groove is arranged between the pole piece coating area and the pole piece blank area; a cutter is arranged in the cutter groove, the cutter is a disc-shaped cutter, two sides of the cutter are connected with a cutter rod, the cutter rod is arranged on a cutter rod frame and supported by the cutter rod frame, and the tail part of the cutter rod is also connected with a telescopic rod; the top of the base is provided with a spring, and the other side of the spring and the bottom of the base are both provided with pole piece clips; and a displacement sensor is also arranged between the spring and the pole piece clamp at the top. The utility model can visually quantify the degree of the rolled pole piece after being stretched, and provides data support for optimizing stretching parameters on the basis.
Description
Technical Field
The utility model relates to a device for quantifying the drawing degree of a pole piece, and belongs to the technical field of battery cell pole pieces.
Background
Under the prior art, along with the requirement of national policy and the demand of different markets, high energy density, high safety has become the mainstream direction in present market, mean more and more high to the requirement of electric core pole piece in the time of high energy density, along with the frivolousization of copper aluminium foil in the market, propose higher requirement to roll-pressing technique and equipment, in carrying out the high compaction pole piece processing procedure, because the coating district receives the rolling force and will be greater than pole piece area of remaining white, and then the extension in coating district will be greater than the extension in area of remaining white, cause the pole piece fold to warp easily, and it is more obvious that this phenomenon is more big more to leave white width, follow-up processing can have the utmost point ear to turn over a book, phenomenons such as utmost point ear deformation. At this moment, the blank regions need to be stretched, but due to the difference of stretching tension, the stretching effects are different, and at the present stage, the stretching effect of the pole piece is basically judged by artificial eyes to see whether the situation that the blank regions are wrinkled after stretching is finished or not, so that the judgment mode has serious inconsistency and the situation of misjudgment often occurs. The effective determination of the stretching degree is important for the subsequent processing and plays a key role in the electrical performance and the processing qualification rate.
For example, chinese patent publication No. CN211363585U discloses a pole piece forming device, which includes an unwinding mechanism, a winding mechanism, a roller mechanism, a stretching mechanism, and an extension roller. The unwinding mechanism is used for arranging pole pieces, the winding mechanism is used for winding the pole pieces, and the roller mechanism, the stretching mechanism and the extension roller are arranged on a tape travelling path of the pole pieces; one of the stretching mechanism and the stretching roller is disposed upstream of the roller mechanism, and the other of the stretching mechanism and the stretching roller is disposed downstream of the roller mechanism. The roller mechanism comprises a first roller and a second roller. The stretching mechanism comprises a compression roller assembly and a stretching assembly; the press roll assembly is located upstream of the stretching assembly and includes a third roll and a fourth roll. The stretching assembly comprises a fifth roller and a sixth roller, and the size of the fifth roller is larger than that of the sixth roller along the direction parallel to the axial direction of the fifth roller. The extension roller includes a roller body and a protrusion portion that is looped around the roller body.
The pole piece forming device disclosed in the patent increases the coating density, thereby improving the energy density of the pole piece; however, the degree of stretching cannot be quantified, and whether the stretching tension is appropriate cannot be effectively determined only by manually judging the relative length of the blank region and the coating region.
Therefore, in order to solve the above background problems, it is urgent to develop a device for quantifying the stretching degree of the pole pieces.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the background, and provides a device for quantifying the stretching degree of a pole piece, which has a reasonable structure, can intuitively quantify the degree of the pole piece after being stretched after being rolled, and provides data support for optimizing stretching parameters on the basis.
The purpose of the utility model is realized as follows: a device for quantifying the stretching degree of a pole piece comprises a base, wherein one side of the base is provided with a pole piece coating area, the other side of the base is provided with a pole piece blank area, and a cutter groove is arranged between the pole piece coating area and the pole piece blank area;
a cutter is arranged in the cutter groove, the cutter is a disc-shaped cutter, two sides of the cutter are connected with a cutter rod, the cutter rod is arranged on a cutter rod frame and supported by the cutter rod frame, and the tail part of the cutter rod is also connected with a telescopic rod;
the top of the base is provided with a spring, and the other side of the spring and the bottom of the base are both provided with pole piece clips;
and a displacement sensor is also arranged between the spring and the pole piece clamp at the top.
And the side wall of the base is also provided with a scale strip.
The top end of the base is connected with a controller.
Compared with the prior art, the utility model has the following advantages:
the device for quantifying the pole piece stretching degree can visually quantify the degree of the pole piece after being stretched after being rolled, and provides data support for optimizing stretching parameters on the basis; after the pole piece is stretched, the pole lug is not easy to turn over and deform in the subsequent die-cutting winding process, the process yield is improved, and the production cost is reduced; meanwhile, due to the fact that the tensile tension can be effectively confirmed, the selection of a copper aluminum foil supplier is more targeted, and the foil with the corresponding tensile strength can be directly selected.
Drawings
FIG. 1 is a schematic view of the overall structure of an apparatus for quantifying the degree of stretching of a pole piece according to the present invention.
FIG. 2 is a schematic side view of an apparatus for quantifying the degree of stretching of a pole piece according to the present invention.
FIG. 3 is a top view of a device for quantifying the elongation of a pole piece according to the present invention.
Wherein: 1. a base; 2. a pole piece coating area; 3. a pole piece blank area; 4. a cutter groove; 5. a knife roll; 6. a cutter; 7. a telescopic rod; 8. a spring; 9. a displacement sensor; 10. a pole piece clamp; 11. a knife and rod rack; 12. a scale bar; 13. and a controller.
Detailed Description
The utility model is described below with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 3, a device for quantifying the stretching degree of a pole piece comprises a base 1, wherein one side of the base 1 is provided with a pole piece coating area 2, the other side of the base 1 is provided with a pole piece blank area 3, and a knife slot 4 is arranged between the pole piece coating area 2 and the pole piece blank area 3;
a cutter 6 is arranged in the cutter groove 4, the cutter 6 is a disc-shaped cutter, two sides of the cutter 6 are connected with a cutter rod 5, the cutter rod 5 is arranged on a cutter rod frame 11 and supported by the cutter rod frame 11, and the tail part of the cutter rod 5 is also connected with a telescopic rod 7;
a spring 8 is arranged at the top of the base 1, and pole piece clamps 10 are arranged on the other side of the spring 8 and the bottom of the base 1;
and a displacement sensor 9 is also arranged between the spring 8 and the pole piece clamp 10 at the top.
The side wall of the base 1 is also provided with a scale bar 12.
The top end of the base 1 is connected with a controller 13.
In this embodiment, the controller 13 may be a PLC control system, for example.
In this embodiment, the device for quantifying the stretching degree of a pole piece of the present invention has the following working method:
the method comprises the following steps: taking a pole piece with the fixed length of 1 meter, cutting, and then only leaving two parts, namely a coating area and a blank area, flatly laying the pole piece on a base 1, wherein the tail end of the pole piece is aligned with 0 scale (namely the tail end of a platform) on the side wall of the base 1, the tail end of the pole piece is respectively clamped by a pole piece clamp 10, the front end of the pole piece is also clamped by the pole piece clamp 10, and at the moment, a spring 8 is in a stretching state and has tension;
step two: the device is electrified, the controller 13 is started, the two displacement sensors 9 are initially positioned, the relative displacement is returned to 0, the cutter 6 starts to rotate, and the cutter roller 5 is pushed by the telescopic rod 7; the cutter 6 starts to move from the inside to the outside and cuts the pole piece (the cutting position is positioned at the boundary position of the blank area and the coating area) until the pole piece is cut;
step three: when the pole piece is cut, the pole piece coating area 2 and the pole piece blank area 3 are under the tension of the spring 8, and after the cutting is finished, the two ends are respectively controlled by the pole piece clips 10, so that the pole piece is in a straightening and spreading state;
step four: after cutting, the two displacement sensors can confirm the positions again, and the relative position L1 of the movement of the white space sensor and the relative position L2 of the paint space sensor are respectively obtained;
step five: reading the data of the scale bar 12: the margin length L1 and the paint zone length L2, the displacement can be confirmed again;
step six: data processing method and related conclusions:
when L1 > L2, it is indicated that the blank region is over-stretched due to stretching, and the stretching tension needs to be reduced.
When L1 < L2, it means that the stretch of the margin portion is not completed, and the stretching tension needs to be increased.
When L1= L2, it is shown that the length of the margin area after stretching exactly matches the length of the coating area without deformation, and the relevant parameters can be cured.
In this embodiment, the state of the spring 8 being in tension means that the spring gives a certain tension to the pole piece, and the pole piece is not deformed or damaged.
In this embodiment, the relative displacement of the sensor is 0, which means that the sensor is not moved, and the relative displacement with respect to its own position is 0.
In this embodiment, the cutting position is the boundary position between the pole piece blank area 3 and the pole piece coating area 2, and the blank area cannot be coated after the cutting.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a device of quantization pole piece degree of stretching which characterized in that: the pole piece coating machine comprises a base (1), wherein one side of the base (1) is provided with a pole piece coating area (2), the other side of the base is provided with a pole piece blank area (3), and a cutter groove (4) is arranged between the pole piece coating area (2) and the pole piece blank area (3);
a cutter (6) is arranged in the cutter groove (4), the cutter (6) is a disc-shaped cutter, two sides of the cutter (6) are connected with a cutter rod (5), the cutter rod (5) is arranged on a cutter rod frame (11) and is supported by the cutter rod frame (11), and the tail part of the cutter rod (5) is also connected with a telescopic rod (7);
a spring (8) is arranged at the top of the base (1), and pole piece clamps (10) are arranged on the other side of the spring (8) and the bottom of the base (1);
and a displacement sensor (9) is also arranged between the spring (8) and the pole piece clamp (10) at the top.
2. The apparatus of claim 1, wherein: the side wall of the base (1) is also provided with a scale bar (12).
3. The apparatus of claim 1, wherein: the top end of the base (1) is connected with a controller (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791816.2U CN215677865U (en) | 2021-08-03 | 2021-08-03 | Device for quantifying degree of tension of pole piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791816.2U CN215677865U (en) | 2021-08-03 | 2021-08-03 | Device for quantifying degree of tension of pole piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215677865U true CN215677865U (en) | 2022-01-28 |
Family
ID=79983096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121791816.2U Withdrawn - After Issue CN215677865U (en) | 2021-08-03 | 2021-08-03 | Device for quantifying degree of tension of pole piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215677865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567249A (en) * | 2021-08-03 | 2021-10-29 | 江苏海基新能源股份有限公司 | Device for quantifying stretching degree of pole piece and working method thereof |
-
2021
- 2021-08-03 CN CN202121791816.2U patent/CN215677865U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567249A (en) * | 2021-08-03 | 2021-10-29 | 江苏海基新能源股份有限公司 | Device for quantifying stretching degree of pole piece and working method thereof |
| CN113567249B (en) * | 2021-08-03 | 2024-08-16 | 江苏海基新能源股份有限公司 | Device for quantifying stretching degree of pole piece and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220128 Effective date of abandoning: 20240816 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220128 Effective date of abandoning: 20240816 |