CN219223615U - Edge warping detection device for lithium ion battery diaphragm - Google Patents
Edge warping detection device for lithium ion battery diaphragm Download PDFInfo
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- CN219223615U CN219223615U CN202320688736.7U CN202320688736U CN219223615U CN 219223615 U CN219223615 U CN 219223615U CN 202320688736 U CN202320688736 U CN 202320688736U CN 219223615 U CN219223615 U CN 219223615U
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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 device for detecting the edge tilting of a diaphragm of a lithium ion battery, which comprises a support, wherein a diaphragm releasing rod is fixed on the support, the diaphragm releasing rod adopts a cylindrical rod with the diameter smaller than the inner diameter of a diaphragm coil, and two sides of the diaphragm releasing rod are respectively provided with a metering plate and a sliding frame; the metering plate is provided with a metering surface which is parallel to the axis of the film placing rod and perpendicular to the horizontal plane, a vertical scale mark and a horizontal scale mark are arranged on the metering surface, and position size readings are marked on the vertical scale mark and the horizontal scale mark; the sliding frame is provided with a horizontal sliding groove, the extending direction of the horizontal sliding groove is parallel to the axis of the film placing rod, a laser emitter is arranged in the horizontal sliding groove, and the emitting end of the laser emitter faces the metering surface of the metering plate; the support is provided with a slide frame height adjusting mechanism for adjusting the height position of the slide frame on the support. After placing the diaphragm roll on putting the membrane pole, use laser irradiation contact membrane roll tip, laser projection is on the measurement board, through scale mark number of degrees to reduce and damage risk and detection error.
Description
Technical Field
The utility model relates to a device for detecting the edge tilting of a lithium ion battery diaphragm, and belongs to the technical field of lithium battery diaphragm production equipment.
Background
When the lithium ion battery diaphragm is produced, the diaphragm needs to be rolled into a cylindrical roll so as to facilitate the diaphragm circulation and the battery winding, the rolled lithium ion battery diaphragm finished product needs to monitor the tilting amount of the two ends of the diaphragm, the rolled diaphragm with tilting edges is shown in a figure 1, and if the tilting edges are higher, the diaphragm cannot be paved in the winding process of a winding core, so that the winding effect is affected; or wrinkles are generated in the next coating process of the product, so that the product cannot be effectively coated, and finally the quality of the product is affected.
Therefore, the tilted edges at the two ends of the diaphragm need to be detected after the diaphragm is wound, the tilting height is measured by adopting a steel ruler in the prior art, the detection method is to manually measure by using the steel ruler, the influence of a measurement method on a detection result is large, and the problem of large error of the measurement result exists; and the steel ruler is directly contacted with the membrane surface of the membrane, if the contact method of the steel ruler and the membrane is improperly controlled, the membrane is damaged, and the product quality is affected.
Disclosure of Invention
The utility model aims to provide a device for detecting the edge tilting of a diaphragm of a lithium ion battery, which is used for solving the technical problems that in the prior art, a steel ruler is used for directly contacting the diaphragm to detect the edge tilting of the diaphragm, so that the error is large and the diaphragm is easy to damage.
The utility model adopts the following technical scheme: the utility model provides a lithium ion battery diaphragm perk limit detection device, it includes the support, is fixed with the membrane pole of putting that sets up with the horizontal plane on the support, puts the membrane pole and adopts the diameter to be less than the cylinder pole of diaphragm volume internal diameter, puts the both sides of membrane pole and is equipped with measuring board and carriage respectively; the metering plate is provided with a metering surface which is parallel to the axis of the film placing rod and perpendicular to the horizontal plane, a vertical scale line and a horizontal scale line are arranged on the metering surface, and position size readings are marked on the vertical scale line and the horizontal scale line; the sliding frame is provided with a horizontal sliding groove, the extending direction of the horizontal sliding groove is parallel to the axis of the film discharging rod, a laser emitter is arranged in the horizontal sliding groove, and the emitting end of the laser emitter faces the metering surface of the metering plate; the support is provided with a sliding frame height adjusting mechanism, and the sliding frame height adjusting mechanism is used for adjusting the height position of the sliding frame on the support.
The sliding frame height adjusting mechanism comprises a guide rod which is vertically arranged, the guide rod is fixed on a support, a vertical sliding groove is formed in the guide rod, a sliding block which moves up and down in the vertical sliding groove is fixedly connected to the sliding frame, a locking bolt is arranged above or below the sliding block on the sliding frame, two ends of the locking bolt penetrate out of the sliding frame and are in threaded connection with the sliding frame, one end of the locking bolt is used for propping up tightly in the vertical sliding groove, and a knob is arranged at the other end of the locking bolt.
The cross section of the vertical chute is T-shaped or dovetail-shaped, and the sliding block adopts a T-shaped block or dovetail-shaped block which is matched with the vertical chute.
The guide rod is a square rod with a square section.
The sliding frame adopts a square rod with a square section.
The support comprises a bottom plate and a side plate vertically fixed on the bottom plate, one end of the film placing rod is fixed at the middle position of the side plate, and the metering plate is fixed at the edge position of the side plate and is vertically arranged with the side plate.
The bottom plate and the side plates are made of steel plates, the bottom plate and the side plates are welded together, and the film placing rod is welded on the side plates.
The film placing rod is a steel pipe with a nonmetallic layer on the surface.
The vertical graduation lines and the horizontal graduation lines are crossed to form graduation lines in a grid form.
The accuracy of the position size reading is in millimeters.
The beneficial effects of the utility model are as follows: aiming at the technical problem that the prior art of the detection method for the edge lifting of the diaphragm has the risk of product damage, the utility model provides a non-contact detection method, which comprises the steps of placing the diaphragm coil on a film placing rod, using laser to irradiate the end part of the contact diaphragm coil, projecting the laser beam onto a metering plate, and passing the scale mark degree on the metering plate, thereby avoiding the direct contact between detection equipment and the product, reducing the risk of damage, facilitating the recognition of the detection result, and reducing the error of the detection result by the detection method. The utility model solves the technical problem that in the process of detecting the edge tilting of the lithium ion battery, when a steel ruler is used for detecting, the steel ruler is contacted with the diaphragm, so that the product is damaged, and the quality of the lithium ion electromagnetic diaphragm film roll is affected.
Preferably, the guide rod with the vertical sliding rail is adopted to carry out height adjustment on the sliding frame, and after the height position of the sliding frame is determined, the guide rod is tightly propped by the locking bolt, so that the sliding frame is fixed.
Preferably, the cross section of the vertical chute is T-shaped or dovetail-shaped, so that the sliding block can be prevented from falling out of the vertical guide rail.
Preferably, the support is formed by welding the bottom plate and the side plates, and has the characteristics of simple structure and easiness in processing.
Preferably, the flexible layer on the membrane bar prevents damage to the membrane.
Drawings
FIG. 1 is a schematic view of a wound separator roll with a raised edge;
fig. 2 is a use state diagram of a device for detecting a raised edge of a lithium ion battery separator according to an embodiment of the present utility model;
FIG. 3 is a view showing another use state of the device for detecting the edge of the separator of the lithium ion battery in FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 2;
fig. 5 is a cross-sectional view of the connection of the carriage and the guide bar of fig. 2.
In the figure: 1-supporting seat, 11-bottom plate, 12-side plate, 2-film placing rod, 3-measuring plate, 4-sliding frame, 41-horizontal sliding groove, 42-laser emitter, 43-sliding block, 5-guiding rod, 51-vertical sliding groove, 61-locking bolt, 62-knob, 7-diaphragm coil,
description of the embodiments
The utility model will now be described in detail with reference to the drawings and specific examples.
As shown in fig. 2 to 4, the device for detecting the edge tilting of the lithium ion battery diaphragm according to an embodiment of the utility model comprises a support 1, wherein a diaphragm placing rod 2 which is parallel to a horizontal plane is fixed on the support 1, the diaphragm placing rod 2 adopts a cylindrical rod with the diameter smaller than the inner diameter of a diaphragm coil 7, and two sides of the diaphragm placing rod 2 are respectively provided with a measuring plate 3 and a sliding frame 4; the metering plate 3 is provided with a metering surface which is parallel to the axis of the film placing rod 2 and is perpendicular to the horizontal plane, a vertical scale line and a horizontal scale line are arranged on the metering surface, position size readings are marked on the vertical scale line and the horizontal scale line, the vertical scale line and the horizontal scale line are intersected to form a grid-shaped scale line, and the precision of the position size readings is millimeter.
The sliding frame 4 is provided with a horizontal sliding groove 41, the extending direction of the horizontal sliding groove 41 is parallel to the axis of the film placing rod 2, a laser emitter 42 is arranged in the horizontal sliding groove 41, and the emitting end of the laser emitter 42 faces the metering surface of the metering plate 3; the support 1 is provided with a sliding frame height adjusting mechanism which is used for adjusting the height position of the sliding frame 4 on the support 1.
The sliding frame height adjusting mechanism comprises a guide rod 5 which is vertically arranged, the guide rod 5 is fixed on the support 1, a vertical sliding groove 51 is formed in the guide rod 5, a sliding block 43 which moves up and down in the vertical sliding groove 41 is fixedly connected to the sliding frame 4, a locking bolt 61 is arranged above or below the sliding block 43 on the sliding frame 4, the locking bolt 61 is arranged below the sliding block 4 in the embodiment, two ends of the locking bolt 61 penetrate out of the sliding frame 4 and are in threaded connection with the sliding frame 4, one end of the locking bolt is used for propping up in the vertical sliding groove 51, and a knob 62 is arranged at the other end of the locking bolt. The cross section of the vertical chute 51 is in a T shape or a dovetail shape, the sliding block 43 adopts a T-shaped block or a dovetail-shaped block which is matched with the vertical chute 51, and in this embodiment, the vertical chute 51 and the sliding block adopt a dovetail shape which is matched with each other. The guide rod 5 is a square rod with a square section. The sliding frame 4 adopts a square rod with a square section.
The support 1 comprises a bottom plate 11 and a side plate 12 vertically fixed on the bottom plate 11, one end of the film placing rod 2 is fixed at the middle position of the side plate 12, the metering plate 3 is fixed at the edge position of the side plate 12 and is vertically arranged with the side plate 12, and the guide rod 5 is welded at the other edge of the side plate 12. The bottom plate 11 and the side plates 12 are made of steel plates, the bottom plate 11 and the side plates 12 are welded together, and the film placing rod 3 is welded on the side plates 12. The film placing rod 3 is a steel pipe with a nonmetallic layer on the surface.
The process of edge-lifting detection by using the edge-lifting detection device of the lithium ion battery diaphragm of the embodiment is as follows:
(1) Placing a lithium ion battery diaphragm at a temperature: placing the membrane in a hundred thousand-level clean space with the humidity of 10% -60% for more than 2 hours at the temperature of 25+/-10 ℃ (so that the internal stress of the membrane is effectively released and the environment where the membrane is positioned is ensured not to introduce foreign matters in the detection process);
(2) The tail end of the lithium ion battery diaphragm film roll is stuck flatly and placed on a film placing rod, and the collision and violent operation should be prevented in the placing process;
(3) After the diaphragm coil stops shaking, the sliding frame of the laser transmitter is regulated, so that laser passes through the highest position of the end part of the diaphragm coil and is projected onto the metering plate, and the height M1 is recorded;
(4) The carriage is adjusted again to enable the laser to pass through the bottommost part of the tilted end part of the film roll and to be projected onto the metering plate, and the height M2 is recorded;
(5) Calculating the results of M1-M2, namely a detection result H of the edge warping;
(6) Then sequentially rotating the diaphragm by 90 degrees, repeating the four steps (2) - (5), and recording 4 groups of detection data at each end (so as to conveniently find a position with a slightly higher warped edge); taking the highest value of the 4 groups of detection results as the edge warping value of the side of the diaphragm;
(7) Turning the diaphragm, repeating the five steps (2) - (6), and recording the edge warping value of the side.
According to the utility model, the lithium ion battery diaphragm coil which is static on the diaphragm placing rod is projected on the measuring plate by using the principle of laser linear projection, laser vertically passes through the measuring point, and the difference between the height of the end part of the diaphragm coil on the measuring plate and the height of the bottom of the tilting plate is calculated, so that the detection result of the tilting edge is obtained. Thereby avoiding the error of the measurement of the hand-held steel ruler and the risk of damaging the contact film surface of the steel ruler.
In the above embodiment, the height adjusting mechanism of the sliding frame may be a motor, an air cylinder, a hydraulic cylinder, or the like, as long as the sliding frame can be driven to move up and down to adjust the height position of the sliding frame.
The foregoing embodiments and description have been provided for the purpose of illustrating the principles of the present utility model and are subject to various changes and modifications without departing from the spirit and scope of the utility model as hereinafter claimed.
Claims (9)
1. A lithium ion battery diaphragm perk detection device is characterized in that: the device comprises a support, wherein a film placing rod which is parallel to a horizontal plane is fixed on the support, the film placing rod adopts a cylindrical rod with the diameter smaller than the inner diameter of a diaphragm roll, and two sides of the film placing rod are respectively provided with a metering plate and a sliding frame; the metering plate is provided with a metering surface which is parallel to the axis of the film placing rod and perpendicular to the horizontal plane, a vertical scale line and a horizontal scale line are arranged on the metering surface, and position size readings are marked on the vertical scale line and the horizontal scale line; the sliding frame is provided with a horizontal sliding groove, the extending direction of the horizontal sliding groove is parallel to the axis of the film discharging rod, a laser emitter is arranged in the horizontal sliding groove, and the emitting end of the laser emitter faces the metering surface of the metering plate; be equipped with carriage height adjustment mechanism on the support, carriage height adjustment mechanism is used for adjusting the high position of carriage on the support, carriage height adjustment mechanism includes the guide bar of vertical setting, and the guide bar is fixed on the support, vertical spout has been seted up on the guide bar, fixedly connected with reciprocates in vertical spout's slider on the carriage, be equipped with the lock bolt above or below that lie in the slider on the carriage, the lock bolt both ends all wear out from the carriage and with carriage threaded connection, the one end of lock bolt is used for the top tightly in vertical spout, the other end is equipped with the knob.
2. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the cross section of the vertical chute is T-shaped or dovetail-shaped, and the sliding block adopts a T-shaped block or dovetail-shaped block which is matched with the vertical chute.
3. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the guide rod is a square rod with a square section.
4. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the sliding frame adopts a square rod with a square section.
5. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the support comprises a bottom plate and a side plate vertically fixed on the bottom plate, one end of the film placing rod is fixed at the middle position of the side plate, and the metering plate is fixed at the edge position of the side plate and is vertically arranged with the side plate.
6. The lithium ion battery separator edge-lifting detection device according to claim 5, wherein: the bottom plate and the side plates are made of steel plates, the bottom plate and the side plates are welded together, and the film placing rod is welded on the side plates.
7. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the film placing rod is a steel pipe with a nonmetallic layer on the surface.
8. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the vertical graduation lines and the horizontal graduation lines are crossed to form graduation lines in a grid form.
9. The lithium ion battery separator edge-lifting detection device according to claim 1, wherein: the accuracy of the position size reading is in millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320688736.7U CN219223615U (en) | 2023-03-31 | 2023-03-31 | Edge warping detection device for lithium ion battery diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320688736.7U CN219223615U (en) | 2023-03-31 | 2023-03-31 | Edge warping detection device for lithium ion battery diaphragm |
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| Publication Number | Publication Date |
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| CN219223615U true CN219223615U (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320688736.7U Active CN219223615U (en) | 2023-03-31 | 2023-03-31 | Edge warping detection device for lithium ion battery diaphragm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879239A (en) * | 2023-07-26 | 2023-10-13 | 江苏国健检测技术有限公司 | Goggles luminousness survey device |
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2023
- 2023-03-31 CN CN202320688736.7U patent/CN219223615U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879239A (en) * | 2023-07-26 | 2023-10-13 | 江苏国健检测技术有限公司 | Goggles luminousness survey device |
| CN116879239B (en) * | 2023-07-26 | 2024-04-05 | 江苏国健检测技术有限公司 | Goggles luminousness survey device |
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