Mechanism for automatically detecting core pulling state of winding battery core

Abstract

The utility model discloses a mechanism for automatically detecting the core-pulling state of a winding battery core, which comprises a first detection structure, a transmission matching structure and a second detection structure, one side of the upper end of the transmission matching structure is in limited connection with the first detection structure, and the other side of the upper end of the transmission matching structure is in limited connection with the second detection structure. The first detection structure and the second detection structure are used for cell detection, the first detection structure and the second detection structure are the same in structure and are symmetrically arranged relative to the transmission matching structure, the first detection structure comprises a supporting frame, an air cylinder is installed on the supporting frame and controls a guide rod to conduct telescopic adjustment, and the side end of the guide rod is fixedly connected with a pushing frame; a pressure sensor is fixedly installed on the lower portion of the pushing frame, a pressure gauge is arranged on the pressure sensor, and the side end of the pressure sensor is connected with a spring. According to the mechanism for automatically detecting the core pulling state of the wound battery core, the purpose of detecting the core pulling state of the battery core is achieved through the arrangement of the first detection structure, the transmission matching structure and the second detection structure.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production detection equipment, in particular to a mechanism for automatically detecting the core-pulling state of a wound battery cell. Background Art

[0002] The new energy industry is developing rapidly. Lithium-ion batteries, as an important environment of the new energy industry, have also developed rapidly. In the application of lithium-ion batteries, the quality and safety requirements of battery cells are becoming increasingly higher. How to realize the automatic batch detection of whether the wound battery cells have core pulling is a major problem at present.

[0003] Most existing winding machines or integrated winding machines lack a mechanism to detect whether wound cells have been cored out. Core-pulling can only be identified and sorted out visually by operators. This can result in many core-pulling cells not being fully removed, causing them to flow into the next process, impacting product quality. Deploying a large number of personnel to identify and sort out these cells will reduce the number of core-pulling cells that flow into the next process, but this still won't completely eliminate these cells, preventing them from flowing into the next process and causing defects. This will also significantly increase personnel costs and workload, leading to increased production costs. This also defeats the purpose of automated production lines, preventing automation and minimizing the effectiveness of these processes.

[0004] In order to solve the problem of undetected core-pulled cells during production, the utility model mainly provides a mechanism for detecting whether the lithium battery cell is pulled out. The mechanism can automatically identify the pulled out cell, making our production more convenient and quick. Utility Model Content

[0005] The purpose of the utility model is to provide a mechanism for automatically detecting the core-pulling state of a wound battery core, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a mechanism for automatically detecting the core pulling status of a wound battery cell, comprising a first detection structure, a transmission matching structure, and a second detection structure, wherein one side of the upper end of the transmission matching structure is limit-connected with the first detection structure, and the other side of the upper end of the transmission matching structure is limit-connected with the second detection structure, the first detection structure and the second detection structure are used for battery cell detection, and the first detection structure and the second detection structure have the same structure and are symmetrically arranged with respect to the transmission matching structure;

[0007] The first detection structure includes a support frame, a cylinder is installed on the support frame, the cylinder controls the extension and contraction adjustment of the guide rod, the side end of the guide rod is fixedly connected to the push frame, the lower part of the push frame is fixedly installed with a pressure sensor, the pressure sensor is provided with a pressure gauge, the side end of the pressure sensor is connected to a spring, and the pressure sensor performs induction measurement through the spring;

[0008] The transmission matching structure includes a first partition, a power seat, a second partition and a transmission belt. The power seat is driven and connected to the transmission belt. The front upper end of the power seat is fixedly connected to the second partition, and the rear upper end of the power seat is fixedly connected to the first partition.

[0009] Specifically, a partition is fixedly connected to the power base near the first partition frame.

[0010] Specifically, a hinge seat is fixedly connected to the partition, an electric-controlled hydraulic rod is hingedly provided on the hinge seat, and a limit plate is hingedly provided on the electric-controlled hydraulic rod.

[0011] Specifically, the center of the limit plate is adjusted by rotating the rod body and the partition.

[0012] Specifically, the electrically controlled hydraulic rod is extended and retracted to allow the limiting plate to rotate and adjust around the rod body and the partition, thereby limiting the battery through the bottom of the limiting plate.

[0013] Specifically, the cylinder controls the position of the pressure sensor and the spring through the guide rod and the push frame, so that the spring contacts the battery to perform the battery core extraction detection work.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This mechanism is installed on the pull belt after winding the battery cell. When the battery cell reaches this mechanism, the cylinder of the mechanism expands and contracts to drive the spring for detection. Under normal circumstances, the spring will not touch the battery cell. When the battery cell is pulled out, either end of the spring touches the battery cell to generate pressure transmitted to the pressure sensor, and the equipment alarm will be shut down.

[0016] Structure and connection relationship: The mechanism consists of a support frame, two cylinders, two pressure sensors, two springs and a pressure gauge. The two cylinders are fixed in parallel on the support frame facing each other, each driving a pressure sensor. The springs are connected and fixed on the pressure sensors, opposite to each other on the left and right. The pressure gauge is connected to the pressure sensor. The device penetrates the inside of the battery cell, and the cylinder of the mechanism extends and retracts to drive the spring for detection and automatic analysis and judgment to determine whether the battery cell has core pulling and select the core pulling cell.

[0017] Application prospects: It can be applied to winding machines or all-in-one winding machines in the lithium battery industry. Batch production of battery cells can improve production quality and efficiency, and save labor and material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2It is a three-dimensional side view of the main body of the utility model;

[0020] Figure 3 It is a three-dimensional rear view of the main body of the utility model;

[0021] Figure 4 This is a structural diagram of the first detection structure of the utility model;

[0022] Figure 5 It is a structural diagram of the transmission matching structure of the utility model;

[0023] Figure 6 It is a three-dimensional rear view of the transmission matching structure of the present invention.

[0024] In the figure: 1-first detection structure; 2-transmission matching structure; 3-second detection structure; 4-cylinder; 5-guide rod; 6-sliding frame; 7-support frame; 8-pressure sensor; 9-spring; 10-partition; 11-first partition; 12-power seat; 13-second partition; 14-transmission belt; 15-limiting plate; 16-electrically controlled hydraulic rod; 17-articulated seat. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a mechanism for automatically detecting the core pulling state of a wound battery cell, comprising a first detection structure 1, a transmission matching structure 2, and a second detection structure 3. One side of the upper end of the transmission matching structure 2 is limitedly connected to the first detection structure 1, and the other side of the upper end of the transmission matching structure 2 is limitedly connected to the second detection structure 3. The first detection structure 1 and the second detection structure 3 are used for battery cell detection, and the first detection structure 1 and the second detection structure 3 have the same structure and are symmetrically arranged with respect to the transmission matching structure 2.

[0027] The first detection structure 1 includes a support frame 7, on which a cylinder 4 is mounted. The cylinder 4 controls the telescopic adjustment of a guide rod 5. The side end of the guide rod 5 is fixedly connected to a push frame 6. A pressure sensor 8 is fixedly mounted on the lower part of the push frame 6. The pressure sensor 8 is provided with a pressure gauge. The side end of the pressure sensor 8 is connected to a spring 9. The pressure sensor 8 performs sensing and measurement through the spring 9.

[0028] The transmission cooperation structure 2 includes a first partition frame 11, a power seat 12, a second partition frame 13 and a transmission belt 14. The transmission belt 14 is drivingly connected to the power seat 12. The front part of the upper end of the power seat 12 is fixedly connected to the second partition frame 13, and the rear part of the upper end of the power seat 12 is fixedly connected to the first partition frame 11. The first detection structure 1, the transmission cooperation structure 2 and the second detection structure 3 are combined, and the detection object is transmitted through the transmission cooperation structure 2. At this time, the power seat 12 can control the operation of the transmission belt 14 to drive the detection object to be transmitted. Moreover, the settings of the second partition frame 13 and the first partition frame 11 can enable the detection object to run smoothly. When detection is required, the cylinder 4 works at this time. The cylinder 4 can push the guide rod 5 to expand and contract to adjust, so as to change the position of the pushing frame 6. The lower end of the pushing frame 6 is combined with the pressure sensor 8 and the spring 9. Along with the movement of the pushing frame 6, the pressure sensor 8 and the spring 9 move in coordination. At this time, the spring 9 can perform contact inspection. Under normal circumstances, the spring 9 does not touch the battery core. When the battery core has a core-pulling phenomenon, either end of the spring 9 touches the battery core to generate pressure and transmits it to the pressure sensor 8, and the device alarms and stops.

[0029] A partition plate 10 is fixedly connected to the position of the power seat 12 close to the first partition frame 11.

[0030] A hinge seat 17 is fixedly connected to the partition plate 10. An electro-hydraulic rod 16 is hinged on the hinge seat 17, and a limit plate 15 is hinged on the electro-hydraulic rod 16.

[0031] The center of the limit plate 15 is rotationally adjusted with the partition plate 10 through a rod body.

[0032] By extending and contracting, the electro-hydraulic rod 16 enables the limit plate 15 to rotate and adjust around the rod body and the partition plate 10, so as to limit the battery through the bottom of the limit plate 15.

[0033] The cylinder 4 controls the positions of the pressure sensor 8 and the spring 9 through the guide rod 5 and the pushing frame 6, so that the spring 9 contacts the battery to perform the detection work on the core-pulling of the battery core.

[0034] Working principle: When work is needed, the user combines the first detection structure 1, the transmission matching structure 2, and the second detection structure 3, and transmits the detection object through the transmission matching structure 2. At this time, the power seat 12 can control the operation of the transmission belt 14 to drive the detection object to be transmitted, and the setting of the second partition 13 and the first partition 11 can make the detection object run smoothly. When detection is needed, the cylinder 4 works at this time. The cylinder 4 can push the guide rod 5 to telescope and adjust, thereby changing the position of the push frame 6. The lower end of the push frame 6 is combined with the pressure sensor 8 and the spring 9. With the movement of the push frame 6, the pressure sensor 8 and the spring 9 move in coordination. At this time, the spring 9 can perform contact testing. Under normal circumstances, the spring 9 will not touch the battery cell. When the battery cell is pulled out, any end of the spring 9 touches the battery cell to generate pressure transmitted to the pressure sensor 8, and the equipment alarm stops to complete the work.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic detection mechanism for the core extraction state of a wound battery cell, comprising a first detection structure (1), a transmission and cooperation structure (2) and a second detection structure (3), characterized in that: On one side of the upper end of the transmission and cooperation structure (2), a first detection structure (1) is connected in a limited way, and on the other side of the upper end of the transmission and cooperation structure (2), a second detection structure (3) is connected in a limited way. The first detection structure (1) and the second detection structure (3) are used for battery cell detection, and the first detection structure (1) and the second detection structure (3) have the same structure and are symmetrically arranged with respect to the transmission and cooperation structure (2). The first detection structure (1) includes a support frame (7). A cylinder (4) is installed on the support frame (7). The cylinder (4) controls the telescopic adjustment of a guide rod (5). A pushing frame (6) is fixedly connected to the side end of the guide rod (5). A pressure sensor (8) is fixedly installed at the lower part of the pushing frame (6). A pressure gauge is provided on the pressure sensor (8). A spring (9) is connected to the side end of the pressure sensor (8). The pressure sensor (8) performs induction measurement work through the spring (9). The transmission and cooperation structure (2) includes a first partition frame (11), a power seat (12), a second partition frame (13) and a conveyor belt (14). A conveyor belt (14) is drivenly connected to the power seat (12). A second partition frame (13) is fixedly connected to the front part of the upper end of the power seat (12), and a first partition frame (11) is fixedly connected to the rear part of the upper end of the power seat (12).

2. The mechanism for automatically detecting the core-pulling state of a wound battery cell according to claim 1, wherein: A partition plate (10) is fixedly connected to the position of the power seat (12) close to the first partition frame (11).

3. An apparatus for automatically detecting the core-pulling state of a wound battery cell according to claim 2, wherein: A hinge seat (17) is fixedly connected to the partition plate (10). An electro-hydraulic rod (16) is hinged on the hinge seat (17). A limiting plate (15) is hinged on the electro-hydraulic rod (16).

4. An apparatus for automatically detecting the core-pulling state of a wound battery cell, as claimed in claim 3, wherein: The center of the limiting plate (15) is rotationally adjusted with the partition plate (10) through a rod body.

5. An apparatus for automatically detecting the core-pulling state of a wound battery cell, characterized in that: By telescoping, the electro-hydraulic rod (16) enables the limiting plate (15) to rotate and adjust around the rod body and the partition plate (10), so as to limit the battery through the bottom of the limiting plate (15).

6. The mechanism for automatically detecting the core-pulling state of a wound battery cell according to claim 5, wherein: The cylinder (4) controls the positions of the pressure sensor (8) and the spring (9) through the guide rod (5) and the pushing frame (6), so that the spring (9) contacts the battery to perform the core extraction detection work of the battery cell.

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