CN214542453U - Edge pressing device for diaphragm of unit piece - Google Patents
Edge pressing device for diaphragm of unit piece Download PDFInfo
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- CN214542453U CN214542453U CN202120435442.4U CN202120435442U CN214542453U CN 214542453 U CN214542453 U CN 214542453U CN 202120435442 U CN202120435442 U CN 202120435442U CN 214542453 U CN214542453 U CN 214542453U
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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 discloses a cell diaphragm blank pressing device draws together frame, upper left compression roller, upper right compression roller, heating member, left hold-down mechanism, right hold-down mechanism and detection reference block down, wherein: the left upper compression roller and the right upper compression roller are fixed on the rack, the left lower compression roller and the right lower compression roller are respectively installed on the rack through a left compression mechanism and a right compression mechanism, the left compression mechanism is used for driving the left lower compression roller to move up and down, and the compression mechanism is used for driving the right lower compression roller to move up and down; heating members are arranged on the upper left pressing roller, the lower left pressing roller, the upper right pressing roller and the lower right pressing roller, and a detection reference block is arranged on the rack and serves as a detection reference of the pressing stroke of the left pressing mechanism and the pressing stroke of the right pressing mechanism. The utility model discloses in, the diaphragm blank pressing device of cell piece that provides has avoided the influence of pole piece thickness inequality to the compound effect of cell piece, and machining efficiency is high, and the course of working is steady accurate, has improved the compound yield of cell piece.
Description
Technical Field
The utility model relates to a lithium cell production facility technical field especially relates to a cell piece diaphragm blank pressing device.
Background
The lithium ion battery is used as a clean power energy and is widely applied to the field of new energy automobiles. The safety performance of lithium battery products and the consistency of the products in the using process are always important concerns of battery developers and manufacturers, and the improvement of the safety performance of the lithium battery in the manufacturing and using processes is of great importance.
The lamination is an important process in the production process of the soft package lithium battery, the positive pole piece, the negative pole, the positive pole piece and the diaphragm are compounded into a unit piece, the yield and the efficiency of the unit piece directly influence the first pass rate and the manufacturing cost of the lamination process; meanwhile, the thermal compounding consistency of the unit pieces also influences the consistency of laminated core products after lamination, influences the infiltration effect of the battery core and the appearance of a pole piece charging and discharging interface, and further influences the long-term cycle performance of the battery. The good thermal compound effect can improve the lamination efficiency, and reduce the pole piece and the short circuit proportion of the battery cell caused by the turnover of the diaphragm, thereby reducing the manufacturing cost of the battery cell and improving the safety performance of the battery. .
SUMMERY OF THE UTILITY MODEL
For the technical problem who exists among the solution background art, the utility model provides a cell piece diaphragm blank pressing device.
The utility model provides a pair of cell diaphragm blank holder device, including frame, upper left compression roller, upper right compression roller, heating member, left hold-down mechanism, right hold-down mechanism and detection reference block down, wherein:
the left upper compression roller and the right upper compression roller are fixed on the frame, the bottom surface of the left upper compression roller and the bottom surface of the right upper compression roller are in the same plane, and a diaphragm horizontal accommodating space is formed between the left upper compression roller and the right upper compression roller;
the left lower compression roller and the right lower compression roller are respectively installed on the rack through a left compression mechanism and a right compression mechanism, the left lower compression roller is positioned above the left upper compression roller and is opposite to the left upper compression roller, and the right lower compression roller is positioned above the right upper compression roller and is opposite to the right upper compression roller;
a diaphragm left side edge pressing space is formed between the left upper pressing roller and the left lower pressing roller, the left pressing mechanism is used for driving the left lower pressing roller to move up and down, a diaphragm right side edge pressing space is formed between the right upper pressing roller and the right lower pressing roller, and the right pressing mechanism is used for driving the right lower pressing roller to move up and down;
heating elements are arranged on the left upper pressing roller, the left lower pressing roller, the right upper pressing roller and the right lower pressing roller, and are used for heating the left upper pressing roller, the left lower pressing roller, the right upper pressing roller and the right lower pressing roller;
the detection reference block is installed on the rack and used as a detection reference of the pressing strokes of the left pressing mechanism and the right pressing mechanism.
As the utility model discloses the scheme of further optimization, the lower surface of upper left compression roller and upper right compression roller is the horizontal plane, and the upper surface of lower right compression roller and lower left compression roller is the horizontal plane.
As a further preferred aspect of the present invention, the lower surface of the right lower compression roller and the left lower compression roller is a horizontal plane.
As a further optimized scheme of the utility model, the heating member is electric heating wire.
As the utility model discloses the scheme of further optimization, all open the accommodation hole on upper left compression roller, left lower compression roller, upper right compression roller and the right lower compression roller, electric heating member installs in the accommodation hole.
As the utility model discloses the scheme of further optimization, upper left compression roller, upper right compression roller and right compression roller are hollow structure down.
As the utility model discloses the scheme of further optimizing, left hold-down mechanism and right hold-down mechanism are the cylinder.
As the utility model discloses the scheme of further optimization still includes the dipperstick, and the dipperstick is installed on detecting the benchmark piece, and the dipperstick is slide caliper rule or micrometer, and the precision is high.
As the utility model discloses the scheme of further optimizing, it includes that the left side detects the reference block and the right side detects the reference block to detect the reference block, and the left side detects the reference block and is located left hold-down mechanism below, and the right side detects the reference block and is located right hold-down mechanism below.
Compared with the traditional compounding of lithium battery unit pieces, the edge pressing device for the unit piece diaphragm has the advantages of simple structure and strong operability, and further improves the compounding effect of the unit pieces; different pressures can be applied to diaphragm edges at two ends of each unit piece by the left pressing mechanism and the right pressing mechanism, the pressing stroke mechanisms can respectively control the roller passing gaps at two ends of each unit piece, the control precision of the roller passing pressing force and the roller passing pressing gaps at two ends of each unit piece is improved, the influence of uneven thickness of a pole piece on the composite effect of each unit piece is avoided, the machining efficiency is high, the machining process is stable and accurate, the composite yield of each unit piece is improved, the bare-core short circuit caused by poor composite of the unit pieces is reduced, and the safety risk of an electric core and the manufacturing cost of a product are further reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
A cell membrane blank pressing device as shown in fig. 1, including frame 1, upper left compression roller 2, left lower compression roller 3, upper right compression roller 4, right lower compression roller 5, heating member 6, left hold-down mechanism 7, right hold-down mechanism 8 and detection reference block 9, wherein:
the left upper pressing roller 2 and the right upper pressing roller 4 are fixed on the frame 1, the bottom surface of the left upper pressing roller 2 and the bottom surface of the right upper pressing roller 4 are in the same plane, and a diaphragm horizontal accommodating space is formed between the left upper pressing roller 2 and the right upper pressing roller 4;
the left lower compression roller 3 and the right lower compression roller 5 are respectively installed on the frame 1 through a left compression mechanism 7 and a right compression mechanism 8, the left lower compression roller 3 is positioned above the left upper compression roller 2 and is opposite to the left upper compression roller 2, and the right lower compression roller 5 is positioned above the right upper compression roller 4 and is opposite to the right upper compression roller 4;
a diaphragm left side edge pressing space is formed between the left upper pressing roll 2 and the left lower pressing roll 3, the left pressing mechanism 7 is used for driving the left lower pressing roll 3 to move up and down, a diaphragm right side edge pressing space is formed between the right upper pressing roll 4 and the right lower pressing roll 5, and the right pressing mechanism 8 is used for driving the right lower pressing roll 5 to move up and down;
the detection reference block 9 is installed on the frame 1 and serves as a detection reference of the pressing strokes of the left pressing mechanism 7 and the right pressing mechanism 8.
The lower surfaces of the upper left compression roller 2 and the upper right compression roller 4 are horizontal planes, the upper surfaces of the lower right compression roller 5 and the lower left compression roller 3 are horizontal planes, so that the uniform stress of a pole piece and a diaphragm in the edge pressing process is ensured, the edge pressing quality is ensured, the lower surfaces of the lower right compression roller 5 and the lower left compression roller 3 are horizontal planes, and the precision of measuring the rising height of the pole piece and the diaphragm through the detection reference block 9 is ensured;
the heating elements 6 are electric heating wires or electric heating sheets, so that heating and installation are convenient, accommodating holes 10 are formed in the left upper compression roller 2, the left lower compression roller 3, the right upper compression roller 4 and the right lower compression roller 5, and the electric heating elements 6 are installed in the accommodating holes 10, so that the installation of the electric heating elements 6 is convenient;
the left upper press roll 2, the left lower press roll 3, the right upper press roll 4 and the right lower press roll 5 are of hollow structures, so that the material consumption is reduced, and heat storage of the left upper press roll 2, the left lower press roll 3, the right upper press roll 4 and the right lower press roll 5 is facilitated;
the left hold-down mechanism 7 and the right hold-down mechanism 8 are cylinders, and are simple in structure and convenient to operate.
For the convenience of the detection to the ascending displacement of left lower compression roller 3 and right lower compression roller 5, it is preferred in this embodiment, still include dipperstick 11, dipperstick 11 is installed on detecting reference block 9, dipperstick 11 is slide caliper rule or micrometer, the precision is high, the use of micrometer makes clearance control visual, it is steady accurate to have guaranteed the cell piece complex process, the control accuracy of compression roller clearance has been improved, can be according to pole piece and the quick accurate adjustment compression roller clearance of diaphragm thickness, reduce debugging material consumption and debugging cycle, and the production efficiency is improved.
In order to facilitate detection of the upward displacement of the left lower platen 3 and the right lower platen 5, it is preferable in the present embodiment that the detection reference block 9 includes a left detection reference block 90 and a right detection reference block 91, the left detection reference block 90 being located below the left pressing mechanism 7, and the right detection reference block 91 being located below the right pressing mechanism 8.
In the working process of the embodiment: the diaphragm 14, the positive plate 13, the diaphragm 14 and the negative plate 12 are sequentially laid in the horizontal diaphragm accommodating space from bottom to top, the upper bottom surface of the negative plate 12 is abutted against the left upper compression roller 2 and the right upper compression roller 4, the diaphragm 14 positioned below is abutted against the upper surfaces of the left lower compression roller 3 and the right lower compression roller 5, and the left pressing mechanism 7 and the right pressing mechanism 8 respectively and independently press the edges of the unit plates connected with the isolated single diaphragms at different time, so that the compounding effect of the plates and the diaphragms can be improved, the compounding yield of the unit plates is improved, the unit plate diaphragms are less in turnover and warping caused by poor compounding, the short-circuit rate of the unit plates and bare chips is reduced, the short-circuit scrap of a manufacturing process is reduced, and the safety performance of a product is improved; the clearance control is visual by using the micrometer to control the roller passing clearances at the two ends of the unit piece, so that the unit piece compounding process is stable and accurate, the control precision of the compression roller clearance is improved, the compression roller clearance can be quickly and accurately adjusted according to the thickness of the pole piece and the diaphragm, the debugging material consumption and the debugging period are reduced, and the production efficiency is improved.
In this embodiment, preferably, the lower surfaces of the upper left compression roller 2 and the upper right compression roller 4 are horizontal planes, and the upper surfaces of the lower right compression roller 5 and the lower left compression roller 3 are horizontal planes, so that the pole piece and the diaphragm are uniformly stressed in the edge pressing process, and the edge pressing quality is ensured.
In the present embodiment, it is preferable that the lower surfaces of the right and left lower rollers 5 and 3 are horizontal surfaces, ensuring the accuracy of measuring the rising height thereof by the detection reference block 9.
In the present embodiment, it is preferable that the heating member 6 is an electric heating wire or an electric heating sheet, which is convenient for heating and installation.
In the present embodiment, it is preferable that the left upper press roll 2, the left lower press roll 3, the right upper press roll 4 and the right lower press roll 5 are all provided with accommodating holes 10, and the electric heating members 6 are installed in the accommodating holes 10, so as to facilitate the installation of the electric heating members 6.
In this embodiment, it is preferable that the upper left press roll 2, the lower left press roll 3, the upper right press roll 4, and the lower right press roll 5 have a hollow structure, so that the material consumption is reduced, and heat storage of the upper left press roll 2, the lower left press roll 3, the upper right press roll 4, and the lower right press roll 5 is facilitated.
In the present embodiment, it is preferable that the left pressing mechanism 7 and the right pressing mechanism 8 are air cylinders, which are simple in structure and convenient to operate.
For the convenience of the detection to the ascending displacement of left lower compression roller 3 and right lower compression roller 5, it is preferred in this embodiment, still include dipperstick 11, dipperstick 11 is installed on detecting reference block 9, dipperstick 11 is slide caliper rule or micrometer, the precision is high, the use of micrometer makes clearance control visual, it is steady accurate to have guaranteed the cell piece complex process, the control accuracy of compression roller clearance has been improved, can be according to pole piece and the quick accurate adjustment compression roller clearance of diaphragm thickness, reduce debugging material consumption and debugging cycle, and the production efficiency is improved.
In order to facilitate detection of the upward displacement of the left lower platen 3 and the right lower platen 5, it is preferable in the present embodiment that the detection reference block 9 includes a left detection reference block 90 and a right detection reference block 91, the left detection reference block 90 being located below the left pressing mechanism 7, and the right detection reference block 91 being located below the right pressing mechanism 8.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a cell membrane blank pressing device, its characterized in that includes frame (1), upper left compression roller (2), left lower compression roller (3), upper right compression roller (4), right lower compression roller (5), heating member (6), left hold-down mechanism (7), right hold-down mechanism (8) and detection reference block (9), wherein:
the left upper compression roller (2) and the right upper compression roller (4) are fixed on the frame (1), and the bottom surface of the left upper compression roller (2) and the bottom surface of the right upper compression roller (4) are in the same plane;
the left lower compression roller (3) and the right lower compression roller (5) are respectively installed on the rack (1) through a left compression mechanism (7) and a right compression mechanism (8), the left lower compression roller (3) is positioned above the left upper compression roller (2) and is opposite to the left upper compression roller (2), the right lower compression roller (5) is positioned above the right upper compression roller (4) and is opposite to the right upper compression roller (4), the left compression mechanism (7) is used for driving the left lower compression roller (3) to move up and down, and the right compression mechanism (8) is used for driving the right lower compression roller (5) to move up and down;
heating elements (6) are respectively arranged on the left upper pressing roller (2), the left lower pressing roller (3), the right upper pressing roller (4) and the right lower pressing roller (5), and the heating elements (6) are used for heating the left upper pressing roller (2), the left lower pressing roller (3), the right upper pressing roller (4) and the right lower pressing roller (5);
the detection reference block (9) is installed on the rack (1) and is used as a detection reference of the pressing strokes of the left pressing mechanism (7) and the right pressing mechanism (8).
2. The die bonder apparatus of claim 1, wherein the lower surfaces of the upper left roll (2) and the upper right roll (4) are horizontal surfaces, and the upper surfaces of the lower right roll (5) and the lower left roll (3) are horizontal surfaces.
3. The die bonder apparatus of claim 1, wherein the lower surfaces of the right bottom roll (5) and the left bottom roll (3) are horizontal.
4. The die bonder apparatus of claim 1, wherein the heating member (6) is an electrical heating wire.
5. The die bonder for die bonding of die sheets according to claim 1, wherein the upper left press roll (2), the lower left press roll (3), the upper right press roll (4) and the lower right press roll (5) are each provided with an accommodating hole (10), and the electric heater (6) is installed in the accommodating hole (10).
6. The die bonder apparatus of claim 1, wherein the upper left roll (2), the lower left roll (3), the upper right roll (4), and the lower right roll (5) are hollow.
7. The die bonder apparatus of claim 1, wherein the left hold-down mechanism (7) and the right hold-down mechanism (8) are pneumatic cylinders.
8. The die membrane hold down apparatus of claim 1, further comprising a measurement ruler (11), the measurement ruler (11) being mounted on the test datum block (9).
9. The die bonder apparatus of claim 1, wherein the test datum block (9) comprises a left test datum block (90) and a right test datum block (91), the left test datum block (90) being positioned below the left hold-down mechanism (7) and the right test datum block (91) being positioned below the right hold-down mechanism (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120435442.4U CN214542453U (en) | 2021-02-26 | 2021-02-26 | Edge pressing device for diaphragm of unit piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120435442.4U CN214542453U (en) | 2021-02-26 | 2021-02-26 | Edge pressing device for diaphragm of unit piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214542453U true CN214542453U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120435442.4U Active CN214542453U (en) | 2021-02-26 | 2021-02-26 | Edge pressing device for diaphragm of unit piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214542453U (en) |
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2021
- 2021-02-26 CN CN202120435442.4U patent/CN214542453U/en active Active
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