CN210489749U - Pole group rubberizing frock and pole group preparation system - Google Patents
Pole group rubberizing frock and pole group preparation system Download PDFInfo
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- CN210489749U CN210489749U CN201921442027.0U CN201921442027U CN210489749U CN 210489749 U CN210489749 U CN 210489749U CN 201921442027 U CN201921442027 U CN 201921442027U CN 210489749 U CN210489749 U CN 210489749U
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a utmost point group preparation field provides a utmost point group rubberizing frock and utmost point group preparation system, utmost point group rubberizing frock includes: a first pressure plate including a first tab portion corresponding to a tab of a pole group and a first main body portion corresponding to a main body of the pole group; a second pressure plate disposed opposite the first pressure plate, the second pressure plate including a second pole ear portion corresponding to a pole tab of the pole group and a second body portion corresponding to a body of the pole group; and a detection terminal of the short-circuit detection member is connectable to the positive tab and the negative tab of the pole group, wherein the first pressing plate is movable relative to the second pressing plate to approach or separate from the second pressing plate. Utmost point group rubberizing frock can reduce the equipment quantity of utmost point group production line, practice thrift fund and area to improve the yields in the preparation process of utmost point group, reduce the manufacturing cost of utmost point group, improve the utilization ratio of pole piece.
Description
Technical Field
The utility model relates to a utmost point group preparation technical field, in particular to utmost point group rubberizing frock and utmost point group preparation system.
Background
With the dual pressure of energy crisis and environmental crisis in the global scope, new energy automobiles are developed like bamboo shoots in the spring after rain. The power battery matched with the new energy automobile directly influences the performance of the new energy automobile, the power battery is rapidly developed at the same time, and particularly the lithium battery has the advantages of high energy density, long service life, environmental friendliness and the like.
The pole group is used as the main component of the lithium battery, and the performance of the pole group directly influences the performance of the lithium battery. In order to ensure the use safety of the lithium battery, after the pole group in the battery is prepared, the pole group needs to be subjected to pressurization short circuit detection, and the pole group with internal short circuit is removed. At present, the preparation of a pole group and the pressurization short-circuit detection of the pole group are independent, after the pole group is prepared through a laminating machine, a thermal compound machine and other equipment, the pole group needs to be transferred to the pressurization short-circuit detection equipment of the pole group through a manipulator, the manipulator needs to take and place the pole group twice in the pole group transfer process, the manipulator easily causes the phenomena of breakage, falling of active substances and the like on the edge of a pole piece, and the potential hazards of short circuit of an electric core, poor self-discharge and the like are easily caused. In addition, the mutual independence of the electrode group preparation and the electrode group pressurization short circuit detection also causes the defects of large equipment quantity, large equipment investment amount and large occupied area of an electrode group production line, increases the early investment of the production line and improves the pressure of a fund chain. In addition, the conventional pole group short circuit detection process layout is that after the pole group is prepared, the whole pole group with short circuit is scrapped, the utilization rate of a pole piece is low, and resource waste is caused.
It is therefore desirable to have an apparatus that overcomes or at least alleviates the above-mentioned disadvantages of the prior art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a utmost point group rubberizing frock to improve utmost point group yields, reduce utmost point group manufacturing cost.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a pole group rubberizing frock, pole group rubberizing frock includes: a first pressure plate including a first tab portion corresponding to a tab of a pole group and a first main body portion corresponding to a main body of the pole group; a second pressure plate disposed opposite the first pressure plate, the second pressure plate including a second pole ear portion corresponding to a pole tab of the pole group and a second body portion corresponding to a body of the pole group; and a detection terminal of the short-circuit detection member is connectable to the positive tab and the negative tab of the pole group, wherein the first pressing plate is movable relative to the second pressing plate to approach or separate from the second pressing plate.
Furthermore, a plurality of first rubberizing gaps are formed in the first main body portion, and a plurality of second rubberizing gaps arranged corresponding to the first rubberizing gaps are formed in the second main body portion.
Further, first utmost point ear includes first anodal ear and first negative pole ear, second utmost point ear includes second anodal ear and second negative pole ear, wherein, first anodal ear orientation the second clamp plate protrusion and/or the anodal ear orientation of second first clamp plate protrusion is in order to form anodal ear plastic mould, first negative pole ear orientation the second clamp plate protrusion and/or the anodal ear orientation of second first clamp plate protrusion is in order to form negative pole ear plastic mould.
Further, the test terminal of short circuit detection spare including set up in the anodal detect probe and the negative pole detect probe of first utmost point ear, anodal detect probe with negative pole detect probe can be at the detection position and dodge and remove between the position.
Further, the first pole ear portion is formed with a positive detection probe mounting hole and a negative detection probe mounting hole.
Furthermore, the first positive pole lug part is of a concave structure, and the positive pole detection probe mounting hole is formed in a concave part of the concave structure; and/or the first negative pole ear part is formed into a concave structure, and the negative pole detection probe mounting hole is arranged at the concave part of the concave structure.
Compared with the prior art, utmost point group rubberizing frock have following advantage:
utmost point group rubberizing frock with utmost point group rubberizing and utmost point group short circuit detection integration together to with utmost point group preparation and short circuit detection integration together, reduce the equipment quantity of utmost point group production line, practice thrift fund and area, and reduce the transport number of times of utmost point group, thereby improve the yields in the preparation process of utmost point group, reduce the manufacturing cost of utmost point group. In addition, the pole group is not hot-pressed in the rubberizing process, the capacity of the subsequent process is saved, the pole group with the short circuit detected can be repaired and the pole pieces can be reused, and the utilization rate of the pole pieces is improved.
Another object of the present invention is to provide a pole group manufacturing system to improve the yield of the pole group and reduce the manufacturing cost of the pole group.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a pole set preparation system comprising, arranged in sequence along a processing path of a pole set: the feeding unit comprises a pole piece feeding part for feeding pole pieces and a diaphragm unwinding part for feeding diaphragms; a lamination unit capable of laminating the pole pieces and the separator to form a pole group; the first pressing plate and the second pressing plate can tightly press the pole group, and the gluing part can glue the pole group; and the blanking unit is used for outputting the pole group preparation system output by the rubberizing unit.
Furthermore, a deviation rectifying unit is arranged between the feeding unit and the lamination unit and comprises a pole piece deviation rectifying unit and a diaphragm deviation rectifying unit.
Furthermore, a weighing unit is arranged between the rubberizing unit and the blanking unit.
Furthermore, the deviation rectifying unit comprises a bad pole piece discharging module, the rubberizing unit comprises a first bad pole group discharging module, and the weighing unit comprises a second bad pole group discharging module.
Compared with the prior art, the pole group preparation system has the same advantages as the pole group rubberizing tool, and the pole group preparation system and the pole group rubberizing tool are not described in detail herein.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a flow chart illustrating a manufacturing process of a pole set manufacturing system according to an embodiment of the present invention;
fig. 2 is a schematic view of a pole group rubberizing tool according to an embodiment of the present invention;
fig. 3 is a schematic view of another angle of the pole group rubberizing tool shown in fig. 2.
Description of reference numerals:
1-a first pressing plate, 11-a first positive electrode lug part, 12-a first negative electrode lug part, 13-a first rubberizing gap, 14-a first main body part, 2-a second pressing plate, 21-a second positive electrode lug part, 22-a second negative electrode lug part, 23-a second rubberizing gap, 24-a second main body part, 3-a pole group, 31-a positive electrode lug part, 32-a negative electrode lug part, 4-a positive electrode detection probe, 5-a negative electrode detection probe and 6-a driving column.
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.
According to an aspect of the utility model provides a pole group rubberizing frock, see fig. 2 and fig. 3, pole group rubberizing frock includes: a first presser plate 1, the first presser plate 1 including a first tab portion corresponding to a tab of the pole group 3 and a first main body portion 14 corresponding to a main body of the pole group 3; a second pressing plate 2, the second pressing plate 2 being disposed opposite to the first pressing plate 1, the second pressing plate 2 including a second tab portion corresponding to a tab of the electrode group 3 and a second main body portion 24 corresponding to a main body of the electrode group 3; and a short-circuit detection member having detection terminals connectable to the positive tab 31 and the negative tab 32 of the pole group 3, wherein the first pressing plate 1 is movable relative to the second pressing plate 2 to approach or separate from the second pressing plate 2.
Above-mentioned utmost point group rubberizing frock will utmost point group rubberizing and utmost point group short circuit detection integration together to prepare utmost point group and short circuit detection integration together, reduce the equipment quantity of utmost point group production line, practice thrift fund and area, and reduce the transport number of times of utmost point group, thereby improve the yields of utmost point group preparation in-process, reduce the manufacturing cost of utmost point group. In addition, the pole group is not hot-pressed in the rubberizing process, the capacity of the subsequent process is saved, the pole group with the short circuit detected can be repaired and the pole pieces can be reused, and the utilization rate of the pole pieces is improved.
Referring to fig. 2, the first main body part 14 is formed with a plurality of first rubberizing breach 13, the second main body part 24 is formed with a plurality of second rubberizing breach 23 that correspond with first rubberizing breach 13 and arrange, the edge of utmost point group 3 exposes in first rubberizing breach 13 and second rubberizing breach 23 department, be convenient for to the rubberizing of the edge of utmost point group 3, and because utmost point group 3 only waits that rubberizing part exposes, other parts are compressed tightly by first clamp plate 1 and second clamp plate 2, thereby make placing of utmost point group 3 reliable and stable, avoid or reduce because of the rubberizing produces utmost point group dislocation, edge damage scheduling problem.
The size, number and arrangement of the first rubberizing indentations 13 and the second rubberizing indentations 23 can be designed appropriately according to the rubberizing requirements of the pole group 3.
Preferably, first utmost point ear includes first anodal ear 11 and first negative pole ear 12, the second utmost point ear includes second anodal ear 21 and second negative pole ear 22, wherein, first anodal ear 11 orientation second clamp plate 2 protrusion and/or second anodal ear 21 are towards first clamp plate 1 protrusion in order to form anodal ear plastic mould, first negative pole ear 12 orientation second clamp plate 2 protrusion and/or second negative pole ear 22 are towards first clamp plate 1 protrusion in order to form negative pole ear plastic mould, and anodal ear plastic mould and negative pole ear plastic mould can gather together loose anodal ear 31 and negative pole ear 32 and compress tightly.
The first pole ear portion may be integrally formed with the first body portion 14 or removably attached to the first body portion 14. Likewise, the second pole ear portion can be integrally formed with the second body portion 24 or removably attached to the second body portion 14.
The concrete structure of positive ear plastic portion and negative pole ear plastic portion can carry out appropriate selection according to actual need, can gather together positive ear 31 and negative pole ear 32 and compress tightly can, see fig. 2 and fig. 3, in the preferred embodiment that illustrates, first positive ear 11 is towards second clamp plate 2 protrusion, and second positive ear 21 is towards first clamp plate 1 protrusion to make when first main part 14 and second main part 24 compress tightly the main part of utmost point group 3, positive ear plastic mould and negative pole ear plastic mould can gather together loose positive ear 31 and negative pole ear 32 and compress tightly.
The concrete structure of the sense terminal of short circuit detection spare can carry out appropriate selection according to actual need, preferably, the sense terminal of short circuit detection spare including set up in anodal detect probe 4 and the negative pole detect probe 5 of first utmost point ear portion, anodal detect probe 4 and negative pole detect probe 5 can move between the detection position and dodge the position, be convenient for short circuit detection spare and anodal ear 31 and the connection of negative pole ear 32, and avoid the sense terminal to interfere the clamp of first clamp plate 1 and second clamp plate 2 to utmost point group.
Further preferably, the first pole ear portion is formed with a positive detection probe mounting hole and a negative detection probe mounting hole, the positive detection probe 4 is mounted in the positive detection probe mounting hole and can move along the axial direction of the positive detection probe mounting hole to move between a detection position and an avoidance position, the negative detection probe 5 is mounted in the negative detection probe mounting hole and can move along the axial direction of the negative detection probe mounting hole to move between the detection position and the avoidance position, and the assembly of the positive detection probe 4 and the negative detection probe 5 is facilitated.
The positive detection probe 4 and the negative detection probe 5 can be detachably inserted into the positive detection probe mounting hole and the negative detection probe mounting hole or can be non-detachably mounted in the positive detection probe mounting hole and the negative detection probe mounting hole.
Further, the first positive electrode lug part 11 is formed into a concave structure, and the positive electrode detection probe mounting hole is arranged at a concave part of the concave structure; and/or the first negative pole ear part 12 is formed into a concave structure, the negative pole detection probe mounting hole is arranged at the concave part of the concave structure, wherein the convex part of the concave structure corresponds to the edge of the tab so as to be matched with the second positive pole ear part 21 and the second negative pole ear part 22 to gather together and press the positive pole tab 31 and the negative pole tab 32.
Further, in the embodiment shown in fig. 2 and 3, the second positive electrode ear 21 and the second negative electrode ear 22 are formed as a flat platform protruding toward the first presser plate 1, and in a case where necessary, the second positive electrode ear 21 and the second negative electrode ear 22 may be provided in a "reentrant" configuration, or other desired configurations.
According to another aspect of the present invention, there is provided a pole group preparation system, see fig. 1, comprising the following components arranged in sequence along the processing route of the pole group: the feeding unit comprises a pole piece feeding part for feeding pole pieces and a diaphragm unwinding part for feeding diaphragms; a lamination unit capable of laminating the pole pieces and the separator to form a pole group; the first pressing plate and the second pressing plate can tightly press the pole group, and the gluing part can glue the pole group;
and the blanking unit is used for outputting the pole group preparation system output by the rubberizing unit.
Above-mentioned utmost point group preparation system prepares and short circuit detection integration together with utmost point group, reduces the equipment quantity of utmost point group production line, practices thrift fund and area to reduce the transport number of times of utmost point group, thereby improve the yields in the utmost point group preparation process, reduce the manufacturing cost of utmost point group. In addition, the pole group is not hot-pressed in the rubberizing process, the capacity of the subsequent process is saved, the pole group with the short circuit detected can be repaired and the pole pieces can be reused, and the utilization rate of the pole pieces is improved.
Preferably, a deviation rectifying unit is arranged between the feeding unit and the lamination unit, and the deviation rectifying unit can rectify the deviation of the positive plate, the negative plate and the diaphragm supplied by the feeding unit, so that the defects of short circuit and the like of the laminated pole group caused by dislocation of the positive plate, the negative plate and the diaphragm are avoided, and the yield is improved.
The specific type of the deviation rectifying unit can be properly selected according to the actual required polarity, preferably, the deviation rectifying unit comprises a pole piece deviation rectifying unit and a diaphragm deviation rectifying unit, the pole piece deviation rectifying unit comprises a ccd (charge Coupled device) camera, and the diaphragm deviation rectifying unit comprises an epc (edge positoxin control) deviation rectifying system. The CCD camera has the advantages of high sensitivity, strong light resistance, small distortion, small size, long service life, vibration resistance and the like, and the EPC deviation rectifying system has the advantages of strong anti-jamming capability, high reliability, long service life and the like.
Preferably, a weighing unit is arranged between the rubberizing unit and the blanking unit, and the pole group is subjected to bearing so as to screen the pole group with unqualified weight.
Preferably, the deviation rectifying unit comprises a bad pole piece discharging module, the rubberizing unit comprises a first bad pole group discharging module, and the weighing unit comprises a second bad pole group discharging module, so that the bad pole groups found in the deviation rectifying unit, the rubberizing unit and the weighing unit are directly discharged, and the bad pole groups are maintained or the pole pieces are recovered according to conditions.
A pole set preparation flow of the pole set preparation system in the preferred embodiment of the present application is described in detail below with reference to fig. 1:
the method comprises the following steps that firstly, a feeding unit carries out feeding on a positive plate, unwinding the diaphragm and feeding on a negative plate through a positive plate feeding part, a diaphragm unwinding part and a negative plate feeding part;
secondly, the deviation rectifying unit rectifies the positive pole piece, the diaphragm and the negative pole piece and discharges a poor pole piece;
thirdly, stacking the positive plate, the diaphragm and the negative plate by a laminating machine (or a thermal compound machine or other appropriate equipment), and finishing diaphragm cutting and diaphragm tail winding;
fourthly, in the gluing unit, the pole group 3 is placed in a pole group gluing tool, the driving column 6 drives the first pressing plate 1 to descend, appropriate pressure is applied to the pole group 3, pressure value fluctuation is kept less than 1% in the whole gluing process, and the positive pole lug 31 and the negative pole lug 32 are pressed and gathered;
and fifthly, after the gluing manipulator acts, the short-circuit detection piece starts to act, the positive detection probe 4 descends to be in contact with the positive lug 31, the negative detection probe 5 descends to be in contact with the negative lug 32, short-circuit testing is started to be performed on the pole group 3, and short-circuit testing conditions can be set according to requirements. Wherein, the short circuit test process is completed in the pole group rubberizing process, the defective pole group with short circuit is directly discharged, the attachment of the residual adhesive tape is not carried out, and the subsequent production is continued after the good pole group is rubberized;
sixthly, carrying out two-dimensional code tape gluing on the good product pole groups, and recording the information of each pole group;
seventhly, the weighing unit bears the weight of the good electrode group, and the bad electrode group with the weight not meeting the requirement is directly discharged;
eighthly, scanning the two-dimensional code on the pole group and recording pole group information;
and ninthly, outputting the pole group to a pole group preparation system by a blanking unit.
And controlling the action of the short circuit detection piece in the fifth step, selecting to perform short circuit detection before rubberizing or perform short circuit detection while rubberizing or perform short circuit detection after rubberizing according to actual needs, and preferably performing short circuit detection while rubberizing in consideration of the current pole group short circuit probability and the production efficiency requirement of the pole group preparation system.
For the control mode of the short-circuit detector, the user can select a proper control strategy according to actual needs, for example, a pressure sensor can be set on the first main body part 14 and/or the second main body part 24, and the short-circuit detector starts to operate when the pressure value reaches a set threshold value; or the short circuit detection part is in a high-frequency detection working condition, the output resistance value is infinite when no polar group exists, and the output resistance value is a natural number when the polar group exists; or the first pole lug part and/or the second pole lug part are/is provided with a pressure sensor, and when the pressure value reaches a set threshold value, the short-circuit detection part starts to act.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a pole group rubberizing frock, its characterized in that, pole group rubberizing frock includes:
a first presser plate (1), the first presser plate (1) comprising a first tab portion corresponding to a tab of a pole group (3) and a first main body portion (14) corresponding to a main body of the pole group (3);
a second pressure plate (2), the second pressure plate (2) being arranged opposite to the first pressure plate (1), the second pressure plate (2) comprising a second pole ear portion corresponding to a pole ear of the pole group (3) and a second main body portion (24) corresponding to a main body of the pole group (3);
a short-circuit detector, the detection terminal of which is connectable to the positive tab (31) and the negative tab (32) of the pole group (3),
wherein the first platen (1) is movable relative to the second platen (2) to move closer to or away from the second platen (2).
2. The pole group rubberizing tool according to claim 1, wherein a plurality of first rubberizing notches (13) are formed on the first main body portion (14), and a plurality of second rubberizing notches (23) arranged corresponding to the first rubberizing notches (13) are formed on the second main body portion (24).
3. The pole group rubberizing tooling of claim 1, wherein said first tab portion comprises a first positive pole ear portion (11) and a first negative pole ear portion (12), and said second tab portion comprises a second positive pole ear portion (21) and a second negative pole ear portion (22), wherein,
the first positive lug part (11) protrudes towards the second pressing plate (2) and/or the second positive lug part (21) protrudes towards the first pressing plate (1) to form a positive lug reshaping mould,
the first negative pole ear (12) protrudes towards the second pressing plate (2) and/or the second negative pole ear (22) protrudes towards the first pressing plate (1) to form a negative pole ear shaping mold.
4. The pole group rubberizing tool according to claim 3, wherein a detection terminal of the short circuit detection piece comprises a positive detection probe (4) and a negative detection probe (5) which are arranged on the first pole ear portion, and the positive detection probe (4) and the negative detection probe (5) can move between a detection position and an avoidance position.
5. The pole group rubberizing tool according to claim 4, wherein a positive detection probe mounting hole and a negative detection probe mounting hole are formed in the first pole ear portion.
6. The pole group rubberizing tool according to claim 5,
the first positive pole ear part (11) is of a concave structure, and the positive pole detection probe mounting hole is formed in a concave part of the concave structure; and/or
First negative pole ear (12) form to "concave" font structure, negative pole test probe mounting hole sets up in the sunk part of "concave" font structure.
7. A pole set preparation system comprising, arranged in sequence along a processing path of a pole set:
the feeding unit comprises a pole piece feeding part for feeding pole pieces and a diaphragm unwinding part for feeding diaphragms;
a lamination unit capable of laminating the pole pieces and the separator to form a pole group;
the pole group gluing device comprises a gluing unit and a pole group gluing tool, wherein the gluing unit is provided with a gluing part and the pole group gluing tool according to any one of claims 1 to 6, the first pressing plate and the second pressing plate can press the pole group tightly, and the gluing part can glue the pole group;
and the blanking unit is used for outputting the pole group preparation system output by the rubberizing unit.
8. The pole group preparation system of claim 7, wherein a deviation rectifying unit is disposed between the feeding unit and the lamination unit, the deviation rectifying unit comprising a pole piece deviation rectifying unit and a diaphragm deviation rectifying unit.
9. The pole group preparation system according to claim 8, wherein a weighing unit is arranged between the rubberizing unit and the blanking unit.
10. The pole group preparation system of claim 9, wherein the rectification unit comprises a bad pole piece discharge module, the rubberizing unit comprises a first bad pole group discharge module, and the weighing unit comprises a second bad pole group discharge module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442027.0U CN210489749U (en) | 2019-08-30 | 2019-08-30 | Pole group rubberizing frock and pole group preparation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442027.0U CN210489749U (en) | 2019-08-30 | 2019-08-30 | Pole group rubberizing frock and pole group preparation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489749U true CN210489749U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921442027.0U Active CN210489749U (en) | 2019-08-30 | 2019-08-30 | Pole group rubberizing frock and pole group preparation system |
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| Country | Link |
|---|---|
| CN (1) | CN210489749U (en) |
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2019
- 2019-08-30 CN CN201921442027.0U patent/CN210489749U/en active Active
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