CN220862835U - Pole piece cutting device and battery production equipment - Google Patents
Pole piece cutting device and battery production equipment Download PDFInfo
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- CN220862835U CN220862835U CN202322717413.9U CN202322717413U CN220862835U CN 220862835 U CN220862835 U CN 220862835U CN 202322717413 U CN202322717413 U CN 202322717413U CN 220862835 U CN220862835 U CN 220862835U
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- lower die
- cutting device
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- 238000005520 cutting process Methods 0.000 title claims abstract description 121
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 127
- 238000003825 pressing Methods 0.000 claims description 10
- 238000003698 laser cutting Methods 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000003475 lamination Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of battery manufacturing, and discloses a pole piece cutting device and battery production equipment, comprising the following components: the main driving mechanism is provided with a first driving speed; the auxiliary driving mechanism is arranged at the downstream of the main driving mechanism and is provided with a second driving speed which is not less than the first driving speed; the cutting mechanism is provided with a cutting position, and the cutting position is positioned at the downstream of the auxiliary driving mechanism. According to the pole piece strip cutting device, the auxiliary driving mechanism is arranged at the downstream of the main driving mechanism, and the driving speed of the auxiliary driving mechanism is larger than or equal to that of the main driving mechanism, so that the auxiliary driving mechanism is utilized to further drive the pole piece strip between the main driving mechanism and the cutting position, the pole piece strip is prevented from loosening and arching between the main driving mechanism and the cutting position, the pole piece strip is straightened, and the pole piece cutting precision is improved.
Description
Technical Field
The utility model relates to the technical field of battery manufacturing, in particular to a pole piece cutting device and battery production equipment.
Background
In the battery production process, the primary battery cell is generally formed by lamination, so that the battery cell includes a plurality of positive electrode sheets and negative electrode sheets which are sequentially stacked, and the positive electrode sheets and the negative electrode sheets are separated by a separator. Therefore, the positive electrode sheet and the negative electrode sheet need to be conveyed to a lamination table for lamination after the electrode sheet strip is cut to form an independent positive electrode sheet or a negative electrode sheet before lamination. Along with the development of the process, the cutting precision requirement on the polar plate is higher and higher. The traditional hardware die-cutting structure generally adopts a structure that a main drive is in front and a cutting knife is pushed back and forth, and meanwhile, the distance between the main drive and the cutting knife is long, so that the length of a pole piece belt positioned between the main drive and the cutting knife is long, the pole piece belt is in a loose state, the pole piece belt is not straightened, and the cutting precision of the pole piece is difficult to improve.
Disclosure of utility model
In view of the above, the utility model provides a pole piece cutting device and battery production equipment, so as to solve the problem of lower cutting precision of the pole piece cutting device in the prior art.
In a first aspect, the present utility model provides a pole piece cutting device, comprising: the main driving mechanism is provided with a first driving speed; the auxiliary driving mechanism is arranged at the downstream of the main driving mechanism and is provided with a second driving speed which is not less than the first driving speed; and the cutting mechanism is provided with a cutting position, and the cutting position is positioned at the downstream of the auxiliary driving mechanism.
The beneficial effects are that: the auxiliary driving mechanism is arranged at the downstream of the main driving mechanism, and the driving speed of the auxiliary driving mechanism is larger than or equal to that of the main driving mechanism, so that the auxiliary driving mechanism is utilized to further drive the pole piece belt between the main driving mechanism and the cutting position, the pole piece belt is prevented from loosening and arching between the main driving mechanism and the cutting position, the pole piece belt is straightened, and the pole piece cutting precision is improved.
In an alternative embodiment, the cutting mechanism includes a cutting portion and a lower die, the cutting portion is disposed corresponding to the lower die, and the mating positions of the cutting portion and the lower die form the cutting position.
In an alternative embodiment, the upper surface of the lower die is recessed downwards to form a containing groove, and the auxiliary driving mechanism is arranged corresponding to the containing groove.
The beneficial effects are that: the auxiliary driving mechanism and the lower die are integrated, so that the occupied space of the pole piece cutting device is reduced while the pole piece is effectively driven.
In an alternative embodiment, the auxiliary driving mechanism is located between the main driving mechanism and the lower die.
In an alternative embodiment, the auxiliary drive mechanism has a drive location adapted to contact the pole piece strip to drive the pole piece strip, the drive location being flush with or above the upper surface of the lower die.
The beneficial effects are that: the driving part of the auxiliary driving mechanism is fully contacted with the pole piece belt, so that the pole piece belt can be effectively driven.
In an alternative embodiment, the auxiliary drive mechanism is a vacuum belt conveyor mechanism or a roller drive mechanism.
In an alternative embodiment, the auxiliary driving mechanism is provided with one or a plurality of auxiliary driving mechanisms at intervals along the width direction of the pole piece belt.
The beneficial effects are that: the number of the auxiliary driving mechanisms can be set according to the width of the pole piece belt, so that the stretching effect of the pole piece belt is ensured, and the cutting precision is further improved.
In an alternative embodiment, the cutting part is disposed outside the lower die and near a side surface of the lower die, the cutting part is adapted to move vertically, and the cutting position is formed between two side surfaces of the cutting part and the lower die.
The beneficial effects are that: the pole piece belt can be extruded and cut between the side face of the lower die and the side face of the cutting part.
In an alternative embodiment, the cutting mechanism further comprises a drive structure in driving connection with the cutting portion.
In an alternative embodiment, the cutting portion is a cutting blade or a laser cutting structure.
In an alternative embodiment, the main driving mechanism comprises a driving roller and a pressing roller, the driving roller and the pressing roller are correspondingly arranged, and a conveying gap allowing the pole piece belt to pass through is formed between the driving roller and the pressing roller.
In a second aspect, the utility model also provides a battery production device, which comprises the pole piece cutting device.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a front view structure of a pole piece cutting device according to an embodiment of the present utility model;
fig. 2 is a top view of the pole piece cutting device shown in fig. 1.
Reference numerals illustrate:
1. A main driving mechanism; 101. a driving roller; 102. a press roller; 2. an auxiliary driving mechanism; 3. a cutting mechanism; 301. a cutting part; 302. a lower die; 3021. an accommodating groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
An embodiment of the present utility model is described below with reference to fig. 1 and 2.
According to an embodiment of the present utility model, in one aspect, there is provided a pole piece cutting device, including: a main driving mechanism 1, an auxiliary driving mechanism 2 and a cutting mechanism 3. The auxiliary driving mechanism 2 is arranged at the downstream of the main driving mechanism 1, the cutting mechanism 3 is provided with a cutting position, and the cutting position is positioned at the downstream of the auxiliary driving mechanism 2. The main driving mechanism 1 has a first driving speed, and the auxiliary driving mechanism 2 has a second driving speed, which is not less than the first driving speed.
The auxiliary driving mechanism 2 is arranged at the downstream of the main driving mechanism 1, and the driving speed of the auxiliary driving mechanism 2 is larger than or equal to that of the main driving mechanism 1, so that the auxiliary driving mechanism 2 is utilized to further drive the pole piece belt between the main driving mechanism 1 and the cutting position, the pole piece belt is prevented from loosening and arching between the main driving mechanism 1 and the cutting position, the pole piece belt is straightened, and the pole piece cutting precision is improved.
The second driving speed is equal to or slightly greater than the first driving speed. It will be appreciated that one skilled in the art can adjust the first drive speed and/or the second drive speed based on the transport state of the pole piece belt so that the pole piece belt is in a straightened state without causing a pulling deformation to the pole piece belt.
In the related art, the main driving mechanism 1 is only used to convey the pole piece belt toward the cutting position, that is, the driving mode of the pole piece belt is a mode of pushing from front to back, so that the pole piece belt is easy to arch and is easy to cause blocking. In the embodiment, the main driving mechanism 1 and the auxiliary driving mechanism 2 are utilized to drive the pole piece belt simultaneously, so that the driving mode of the pole piece belt is changed into a mode of pulling the pole piece belt from back to front, and the pole piece belt is ensured to be in a straight state all the time.
In one embodiment, as shown in fig. 1 and 2, the cutting mechanism 3 includes a cutting portion 301 and a lower die 302, the cutting portion 301 being provided corresponding to the lower die 302, and the mating positions of the cutting portion 301 and the lower die 302 forming cutting positions.
In one embodiment, as shown in fig. 1, the upper surface of the lower mold 302 is recessed downward to form a receiving groove 3021, and the auxiliary driving mechanism 2 is disposed corresponding to the receiving groove 3021. The auxiliary driving mechanism 2 and the lower die 302 are integrally arranged, so that the occupied space of the pole piece cutting device is reduced while the pole piece is effectively driven.
Of course, in other alternative embodiments, the auxiliary driving mechanism 2 may be set independently of the lower die 302, and the setting position of the auxiliary driving mechanism 2 may be set between the main driving mechanism 1 and the cutting position, specifically, the auxiliary driving mechanism 2 may be set between the main driving mechanism 1 and the lower die 302.
In one embodiment, as shown in fig. 1, the secondary drive mechanism 2 has a drive location adapted to contact the pole piece strip to drive the pole piece strip, the drive location being either flush with the upper surface of the lower die 302 or above the upper surface of the lower die 302. Thereby ensuring that the driving part of the auxiliary driving mechanism 2 is fully contacted with the pole piece belt, and realizing the effective driving of the pole piece belt.
The driving portion of the auxiliary driving mechanism 2 may be slightly higher than the upper surface of the lower die 302, and may not greatly affect the conveying path of the pole piece belt.
In one embodiment, as shown in fig. 1 and 2, the auxiliary drive mechanism 2 is a vacuum belt conveyor mechanism. Specifically, the extending direction of the vacuum belt conveying mechanism is arranged along the conveying direction of the pole piece belt.
It should be noted that, referring to fig. 1, the upper surface of the vacuum belt conveying mechanism is a driving part, which can adsorb and fix the pole piece belt, and convey the pole piece belt forward during the operation of the vacuum belt conveying mechanism.
Of course, in other alternative embodiments, the auxiliary drive mechanism 2 may also be a roller drive mechanism.
In one embodiment, as shown in fig. 2, the auxiliary driving mechanism 2 is provided with one or a plurality of auxiliary driving mechanisms at intervals along the width direction of the pole piece belt. The number of the auxiliary driving mechanisms 2 can be set according to the width of the pole piece belt, so that the pole piece belt stretching effect is guaranteed, and the cutting precision is further improved.
It should be noted that one accommodating groove 3021 may be provided to accommodate a plurality of auxiliary driving mechanisms 2 at the same time, or one accommodating groove 3021 may be provided for each auxiliary driving mechanism 2 separately, that is, the accommodating grooves 3021 are also provided in a plurality, and the plurality of auxiliary driving mechanisms 2 are provided corresponding to the plurality of accommodating grooves 3021.
In one embodiment, as shown in fig. 1 and 2, the cutting portion 301 is disposed outside the lower die 302 and near a side surface of the lower die 302, the cutting portion 301 is adapted to move vertically, and a cutting position is formed between two side surfaces of the cutting portion 301 and the lower die 302, which are disposed correspondingly. Thereby enabling the pole piece strap to be compression cut between the side of the lower die 302 and the side of the cutting portion 301.
It should be noted that referring to fig. 2, the cutting portion 301 and the lower die 302 form a scissor-like structure, and the pole piece is cut between the left side surface of the cutting portion 301 and the right side surface of the lower die 302.
In one embodiment, the cutting mechanism 3 further comprises a drive structure in driving connection with the cutting portion 301. Specifically, the driving structure can drive the cutting portion 301 to reciprocate in the vertical direction.
In one embodiment, the cutting portion 301 is a cutting knife or a laser cutting structure.
It should be noted that, referring to fig. 1, in one embodiment, the auxiliary driving mechanism 2 is a vacuum belt conveying mechanism, the vacuum belt conveying mechanism is disposed in a receiving groove 3021 of the lower die 302, the cutting portion 301 is a cutting blade, and the driving structure drives the cutting blade to reciprocate vertically, and during the downward movement of the cutting blade, the side surface of the cutting blade and the side surface of the lower die 302 extrude and cut the pole piece belt.
In the second embodiment, the auxiliary driving mechanism 2 is a vacuum belt conveying mechanism which is disposed downstream of the main driving mechanism 1 and upstream of the lower die 302, and therefore, the lower die 302 does not need to be provided with a receiving groove 3021 to accommodate the vacuum belt conveying mechanism, and the lower die 302 only functions to cooperate with the cutting portion 301 to cut the pole piece belt, and the length (in the driving direction shown in fig. 1) of the lower die 302 in the present embodiment can be appropriately reduced with respect to the lower die 302 in the embodiment shown in fig. 1, so that the installation position of the vacuum belt conveying mechanism is reserved between the main driving mechanism 1 and the lower die 302.
In the third embodiment, the auxiliary driving mechanism 2 is a roller driving mechanism (similar to the structure of the main driving mechanism 1), and the roller driving mechanism may be disposed between the main driving mechanism 1 and the lower die 302 based on its own structural characteristics without integrating the roller driving mechanism with the lower die 302. Therefore, the lower die 302 only functions to cooperate with the cutting portion 301 to cut the pole piece belt, and the length (in the driving direction shown in fig. 1) of the lower die 302 in the present embodiment can be appropriately reduced with respect to the lower die 302 in the embodiment shown in fig. 1, so that the installation position of the roller driving mechanism is reserved between the main driving mechanism 1 and the lower die 302.
In the fourth embodiment, the cutting portion 301 is a laser cutting structure, and therefore, there is no need to provide a driving structure to move the cutting portion 301 in the vertical direction. It should be noted that, the lower die 302 is provided with a cutting avoidance groove, and the cutting avoidance groove is correspondingly arranged with the laser cutting structure. The auxiliary driving mechanism 2 can be arranged in the lower die 302, and the auxiliary driving mechanism 2 only needs to avoid the position of the cutting avoidance groove; of course, the auxiliary driving mechanism 2 may be disposed between the main driving mechanism 1 and the lower die 302.
In one embodiment, as shown in fig. 1 and 2, the main driving mechanism 1 includes a driving roller 101 and a pressing roller 102, where the driving roller 101 and the pressing roller 102 are disposed correspondingly, and a conveying gap allowing the pole piece belt to pass through is formed between the driving roller 101 and the pressing roller 102.
When the pole piece cutting device of the embodiment is used, the pole piece belt passes through the driving roller 101 and the pressing roller 102, the pole piece belt is driven to move forwards in the rotation process of the driving roller 101, and the vacuum belt conveying mechanism adsorbs the pole piece belt and conveys the pole piece belt forwards in the operation process; when the pole piece belt is conveyed in place, the driving structure drives the cutting part 301 to move downwards, and the cutting part 301 and the lower die 302 are matched with each other to cut the pole piece belt.
According to an embodiment of the utility model, on the other hand, there is also provided a battery production device, including the above-mentioned pole piece cutting device.
Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.
Claims (12)
1. A pole piece cutting device, comprising:
a main driving mechanism (1) having a first driving speed;
The auxiliary driving mechanism (2) is arranged at the downstream of the main driving mechanism (1), and the auxiliary driving mechanism (2) has a second driving speed which is not less than the first driving speed;
And the cutting mechanism (3) is provided with a cutting position, and the cutting position is positioned at the downstream of the auxiliary driving mechanism (2).
2. The pole piece cutting device according to claim 1, wherein the cutting mechanism (3) includes a cutting portion (301) and a lower die (302), the cutting portion (301) being provided in correspondence with the lower die (302), and the mating positions of the cutting portion (301) and the lower die (302) forming the cutting position.
3. The pole piece cutting device according to claim 2, wherein an upper surface of the lower die (302) is recessed downward to form a receiving groove (3021), and the auxiliary driving mechanism (2) is disposed corresponding to the receiving groove (3021).
4. Pole piece cutting device according to claim 2, characterized in that the secondary driving mechanism (2) is located between the primary driving mechanism (1) and the lower die (302).
5. A pole piece cutting device according to any of claims 2-4, characterized in that the secondary drive mechanism (2) has a drive location adapted to be in contact with a pole piece strip for driving the pole piece strip, which drive location is flush with or higher than the upper surface of the lower die (302).
6. The pole piece cutting device according to any one of claims 1 to 4, wherein the auxiliary drive mechanism (2) is a vacuum belt conveyor mechanism or a roller drive mechanism.
7. The pole piece cutting device according to any one of claims 1 to 4, wherein the auxiliary driving mechanism (2) is provided with one or a plurality of auxiliary driving mechanisms at intervals along the width direction of the pole piece belt.
8. The pole piece cutting device according to any one of claims 2 to 4, wherein the cutting portion (301) is disposed outside the lower die (302) and is disposed near a side surface of the lower die (302), the cutting portion (301) being adapted to move vertically, the cutting position being formed between two side surfaces of the cutting portion (301) and the lower die (302) that are disposed correspondingly.
9. A pole piece cutting device according to claim 8, wherein the cutting mechanism (3) further comprises a drive structure in driving connection with the cutting portion (301).
10. The pole piece cutting device according to any of claims 2 to 4, wherein the cutting portion (301) is a cutting knife or a laser cutting structure.
11. The pole piece cutting device according to any one of claims 1 to 4, wherein the main driving mechanism (1) comprises a driving roller (101) and a pressing roller (102), the driving roller (101) and the pressing roller (102) are correspondingly arranged, and a conveying gap allowing a pole piece belt to pass through is formed between the driving roller (101) and the pressing roller (102).
12. A battery production apparatus comprising the pole piece cutting device according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322717413.9U CN220862835U (en) | 2023-10-10 | 2023-10-10 | Pole piece cutting device and battery production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322717413.9U CN220862835U (en) | 2023-10-10 | 2023-10-10 | Pole piece cutting device and battery production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220862835U true CN220862835U (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322717413.9U Active CN220862835U (en) | 2023-10-10 | 2023-10-10 | Pole piece cutting device and battery production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220862835U (en) |
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2023
- 2023-10-10 CN CN202322717413.9U patent/CN220862835U/en active Active
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