Battery cell diaphragm hot cutting mechanism

Abstract

The utility model discloses a thermal cutting mechanism universal for battery cell diaphragms of various models. The battery cell cutting device comprises a working rack, a battery cell carrier table is arranged on the working rack, battery cell clamping and positioning mechanisms located at the two ends of the battery cell carrier table are arranged at the front end of the working rack, and a lifting motor and a lower cutting carrier plate connected with the lifting motor are arranged at the side end of the working rack. The lower end of the lower cutting carrier plate is provided with a hot cutter assembly located above the battery cell carrier table, a torque sensor is arranged in the lifting motor, the working rack is further provided with an MCU controller, and the battery cell clamping and positioning mechanism, the lifting motor, the torque sensor and the hot cutter assembly are all electrically connected with the MCU controller. The utility model is applied to the technical field of batteries.

Description

Technical Field

[0001] The utility model relates to a thermal cutting mechanism, in particular to a thermal cutting mechanism for a battery core diaphragm. Background Art

[0002] New energy vehicle power cell is a kind of power source power material replacement cell, which can be used in a wide range of power materials. Figure 1 As shown, the battery cell 1a is formed by stacking the first pole core 2a, the first diaphragm 3a, the second pole core 4a and the second diaphragm 5a in sequence and then rolling it forward. However, the battery cell also has a lifespan, so it is necessary to recycle the waste power battery cells of new energy vehicles. The current technology is to manually tear off the packaging strip 6a on the forward-rolled battery cell, and then roll it back to release the first pole core 2a, the first diaphragm 3a, the second pole core 4a and the second diaphragm 5a, and then manually tear off the packaging strip 6a, which is prone to tearing or tearing, resulting in the subsequent rewinding not being able to be carried out well. In the past, a hot cutting device was used to hot cut the battery cell 1a and then tear the strip and rewind it. However, there are many types and models of battery cells 1a at present, and the current hot cutting mechanism cannot be used for multiple models of battery cells 1a. In addition, the battery cells 1a will have left-wound battery cells and right-wound battery cells, and the outermost layer of material will be attached to the middle of the battery cell 1a. The outermost layer of material 7a of the left-wound battery cell is located on the right side of the battery cell 1a, and the outermost layer of material 7a of the right-wound battery cell is located on the left side of the battery cell 1a. The existing hot cutting device directly performs hot cutting from the packaging strip 6a, and its film tearing effect is also average.

[0003] For example, patent number CN113904019A, titled "Fully Automatic Electrode Separator for Batteries," discloses in paragraph

[0010] that "a surface diaphragm hot-cutting assembly includes a cutting table positioned at one end of a T-shaped workbench flat plate; a suction cup positioned below the cutting table; a cutting plate positioned perpendicular to the cutting positioning table; and a hot-cutting knife mounted on the cutting plate." This patent also discloses a hot-cutting assembly for battery cell 1a, but it also suffers from the aforementioned issues. Therefore, there is an urgent need to develop a hot-cutting device that is universally applicable to multiple battery cell models and can accommodate both left- and right-wound battery cells. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a battery core diaphragm thermal cutting mechanism.

[0005] The technical solution adopted by the present invention is: the present invention includes a working frame, a battery cell carrier platform is provided on the working frame, a battery cell clamping and positioning mechanism is provided at the front end of the working frame at both ends of the battery cell carrier platform, a lifting motor and a lower cutting plate connected to the lifting motor are provided at the side end of the working frame, a hot cutting knife assembly is provided at the lower end of the lower cutting plate above the battery cell carrier platform, a torque sensor is provided in the lifting motor, and an MCU controller is also provided on the working frame, and the battery cell clamping and positioning mechanism, the lifting motor, the torque sensor, and the hot cutting knife assembly are all electrically connected to the MCU controller.

[0006] Furthermore, the battery cell clamping and positioning mechanism is used to position and clamp the battery cell on the battery cell carrier, and to make the outermost layer of material of the rolled battery cell be located obliquely below the hot cutting knife assembly, so that when the hot cutting knife assembly is lowered for hot cutting, the position of the hot-cutting battery cell is the outermost layer of material of the non-battery cell.

[0007] Furthermore, the battery cell clamping and positioning mechanism includes a mounting panel installed on the front end surface of the working frame, and transverse guide rails are provided at the upper and lower ends of the mounting panel, and a clamping assembly is provided between the two ends of the upper and lower transverse guide rails, and the clamping assembly includes a motor mounting seat, a screw motor, a transmission screw, a screw sliding carrier and a clamping arm, the two motor mounting seats are respectively installed at the two ends of the mounting panel, and the two motor mounting seats are installed at different heights, the screw motor is installed on the motor mounting seat, the transmission screw is connected to the screw motor, the screw sliding carrier is adapted to be installed between the two transverse guide rails and connected to the transmission screw, the clamping arm is connected to the upper end of the screw sliding carrier, and the two clamping arms are both located above the battery cell carrier platform.

[0008] Furthermore, the lower cutting plate includes a longitudinal moving plate and a lower pressure plate vertically fixed to the upper end of the longitudinal moving plate, the longitudinal moving plate is connected to the lifting motor, the hot cutting knife assembly is installed at the lower end of the front edge of the lower pressure plate, the hot cutting knife assembly includes a cutter, a heater is installed in the cutter, and the heater is used to heat the cutter; the torque sensor is used to sense and detect the torque applied to the cutter during the downward pressure process, and the torque value is set by the MCU controller. When the torque sensor senses that the torque reaches the set value, the lifting motor stops descending, so that the cutter performs hot cutting on the battery cell diaphragm.

[0009] Furthermore, the cutter assembly further includes a temperature sensor, which is used to detect the temperature of the cutter.

[0010] The beneficial effects of the present invention are: 1. The battery cell clamping and positioning mechanism can be used to adapt to battery cells of various widths and sizes and to position them on the battery cell carrier platform; 2. The battery cell diaphragm can be effectively heat-cut by the lifting motor in combination with the hot cutter assembly, and the torque sensor provided by the lifting motor can effectively detect the process of the hot cutter assembly pressing down and contacting the product, thereby controlling the hot cutter assembly to heat-cut battery cells of different thicknesses; 3. The non-outermost material of the battery cell is positioned directly below the hot cutter assembly, which can effectively heat-cut the diaphragm, changing the position of traditional battery cell hot cutting, and the film tearing effect is much easier than the traditional one, and it is not easy to break the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the battery cell;

[0012] Figure 2 This is a schematic diagram of the state of the battery cell after hot cutting and film tearing;

[0013] Figure 3 It is a structural diagram of the utility model;

[0014] Figure 4 It is the main view of the utility model;

[0015] Figure 5 1. It is a structural diagram of the battery cell clamping and positioning mechanism;

[0016] Figure 6 It is a schematic diagram of the structure between the lifting motor, the lower cutting carrier plate and the hot cutting knife assembly. DETAILED DESCRIPTION

[0017] like Figures 3 to 6As shown, in this embodiment, the utility model includes a working frame 1, on which a cell carrier platform 2 is provided, and a cell clamping and positioning mechanism 3 located at both ends of the cell carrier platform 2 is provided at the front end of the working frame 1, and a lifting motor 4 and a lower cutting carrier plate 5 connected to the lifting motor 4 are provided at the side end of the working frame 1, and a hot cutting knife assembly 6 located above the cell carrier platform 2 is provided at the lower end of the lower cutting carrier plate 5, and a torque sensor is provided in the lifting motor 4, and the working frame 1 is also provided with an MCU controller 7, and the cell clamping and positioning mechanism 3, the lifting motor 4, the torque sensor, and the hot cutting knife assembly 6 are all connected to the MCU controller The device 7 is electrically connected; the battery cell clamping and positioning mechanism 3 is used to position and clamp the battery cell 1a on the battery cell carrier 2, and make the outermost layer material 7a of the rolled battery cell 1a be located obliquely below the hot cutting knife assembly 6, so that when the hot cutting knife assembly 6 descends for hot cutting, the position of the hot-cut battery cell 1a is the outermost layer material position 7a of the non-battery cell 1a; this design can position and clamp the battery cell 1a on the battery cell carrier 2 through the battery cell clamping and positioning mechanism 3, and then when the hot cutting knife assembly 6 cooperates with the lifting motor 4 to descend for hot cutting, when the torque sensor senses that the torque reaches the set value, the lifting motor 4 stops descending, and then the hot cutting knife assembly 6 performs hot cutting on the diaphragm.

[0018] This design structure can adopt manual loading of battery cells 1a, or loading by a robot. In order to make the present invention more automatic, a CCD camera can be installed above the battery cell carrier 2 to capture the position of the packaging strip 6a of the battery cell 1a and whether the battery cell 1a is a left-wound battery cell or a right-wound battery cell, and then transmit the data to the MCU controller 7, which then controls the battery cell clamping and positioning mechanism 3 to position and clamp the battery cell 1a, and at the same time, the non-outermost material position 7a of the battery cell 1a is located directly below the hot cutting knife assembly 6. This design effectively changes the hot cutting position of the traditional battery cell 1a, and it can be seen from actual conditions that the change in the hot cutting position makes it more convenient and reliable to tear the film of the battery cell 1a, and in the subsequent rewinding operation, Figure 2 As shown, the battery cell 1a has its separator initially torn off.

[0019] In this embodiment, the battery cell clamping and positioning mechanism 3 includes a mounting panel 31 mounted on the front end surface of the working frame 1, and a transverse guide rail 32 is provided at the upper and lower ends of the mounting panel 31, and a clamping assembly is provided between the two ends of the upper and lower transverse guide rails 32, and the clamping assembly includes a motor mounting seat 33, a screw motor 34, a transmission screw 35, a screw sliding carrier 36 and a clamping arm 37. The two motor mounting seats 33 are respectively mounted at the two ends of the mounting panel 31, and the two motor mounting seats 33 are installed at different heights. The screw motor 34 is installed on the motor mounting seat 33, and the transmission screw 35 is installed on the The screw motor 34 is connected, the screw sliding carrier 36 is adapted to be installed between the two transverse guide rails 32 and connected to the transmission screw 35, the clamping arm 37 is connected to the upper end of the screw sliding carrier 36, and the two clamping arms 37 are both located above the battery cell carrier 2; this design can adjust the position of the battery cell 1a on the battery cell carrier 2 and clamp it through two clamping components. The specific operation is to drive the screw sliding carrier 36 to move horizontally by the screw motor 34, so that the clamping arm 37 pushes the battery cell 1a to the bottom of the hot cutting knife assembly 6, and then clamp the battery cell 1a on the battery cell carrier 2 through the second clamping arm 37.

[0020] In this embodiment, the lower cutting carrier 5 includes a longitudinal moving carrier 51 and a lower pressure carrier 52 vertically fixed to the upper end of the longitudinal moving carrier 51, the longitudinal moving carrier 51 is connected to the lifting motor 4, the hot cutter assembly 6 is installed at the lower end of the front edge of the lower pressure carrier 52, the hot cutter assembly 6 includes a cutter 61, and a heater 62 is installed in the cutter 61, and the heater 62 is used to heat the cutter 61; the torque sensor is used to sense the torque applied to the cutter 61 during the downward pressing process, and the torque value is set by the MCU controller 7. When the torque sensor senses that the torque reaches the set value, the lifting motor 4 stops descending, so that the cutter 61 performs hot cutting on the diaphragm of the battery cell 1a; this design can know whether the cutter 61 has been pressed down to the diaphragm of the battery cell 1a by setting the torque, and can adapt to battery cells 1a of different thicknesses.

[0021] In this embodiment, the cutter assembly further includes a temperature sensor, which is used to detect the temperature of the cutter 61, thereby controlling the temperature of the thermally cut diaphragm.

[0022] In this embodiment, the working process of the utility model is as follows: the battery cell 1a is loaded onto the battery cell carrier table 2 manually or by a robot, and then the battery cell 1a is positioned by shooting with a CCD camera or manually positioned manually, and the non-outermost material position 7a of the battery cell 1a is positioned directly below the hot cutter assembly 6 through the battery cell clamping and positioning mechanism 3, and at the same time, the heater 62 heats the cutter 61 to the set temperature, and then the cutter 61 is driven down by the lifting motor 4. When the cutter 61 descends, it contacts the battery cell 1a to generate a reaction force, and stops descending when the force is greater than the torque set by the torque sensor. At this time, the diaphragm is cut by the heated cutter 61, thereby facilitating the tearing of the battery cell 1a and the subsequent rewinding operation.

[0023] The utility model is applied to the technical field of batteries.

[0024] Although the embodiments of the present invention are described with practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A battery cell diaphragm hot cutting mechanism, comprising a working frame (1), wherein a battery cell carrier (2) is provided on the working frame (1), characterized in that: The front end of the working frame (1) is provided with a cell clamping and positioning mechanism (3) located at both ends of the cell carrier platform (2); the side ends of the working frame (1) are provided with a lifting motor (4) and a lower cutting plate (5) connected to the lifting motor (4); the lower end of the lower cutting plate (5) is provided with a hot cutting knife assembly (6) located above the cell carrier platform (2); the lifting motor (4) is provided with a torque sensor; the working frame (1) is also provided with an MCU controller (7); the cell clamping and positioning mechanism (3), the lifting motor (4), the torque sensor, and the hot cutting knife assembly (6) are all electrically connected to the MCU controller (7).

2. The battery cell diaphragm thermal cutting mechanism according to claim 1, characterized in that: The battery cell clamping and positioning mechanism (3) is used to position and clamp the battery cell (1a) on the battery cell carrier (2), and to position the outermost layer of material (7a) of the rolled-up battery cell (1a) obliquely below the hot cutter assembly (6), so that when the hot cutter assembly (6) descends for hot cutting, the position of the hot-cutting battery cell (1a) is the position of the outermost layer of material (7a) of the non-battery cell (1a).

3. The battery cell diaphragm thermal cutting mechanism according to claim 1, characterized in that: The battery cell clamping and positioning mechanism (3) comprises a mounting panel (31) mounted on the front end surface of the working frame (1), and a transverse guide rail (32) is provided at both upper and lower ends of the mounting panel (31). A clamping assembly is provided between both ends of the upper and lower transverse guide rails (32), and the clamping assembly comprises a motor mounting seat (33), a screw motor (34), a transmission screw (35), a screw sliding carrier (36) and a clamping arm (37). The two motor mounting seats (33) are respectively mounted on the mounting panel (31). The two motor mounting seats (33) are installed at different heights, the screw motor (34) is installed on the motor mounting seat (33), the transmission screw (35) is connected to the screw motor (34), the screw sliding carrier (36) is adapted to be installed between the two transverse guide rails (32) and is connected to the transmission screw (35), the clamping arm (37) is connected to the upper end of the screw sliding carrier (36), and the two clamping arms (37) are both located above the battery cell carrier (2).

4. The battery cell diaphragm thermal cutting mechanism according to claim 1, characterized in that: The lower cutting carrier (5) comprises a longitudinal moving carrier (51) and a lower pressure carrier (52) vertically fixed to the upper end of the longitudinal moving carrier (51); the longitudinal moving carrier (51) is connected to the lifting motor (4); the hot cutting knife assembly (6) is installed at the lower end of the front edge of the lower pressure carrier (52); the hot cutting knife assembly (6) comprises a cutter (61); a heater (62) is installed in the cutter (61); the heater (62) is used to heat the cutter (61); the torque sensor is used to sense and detect the torque applied to the cutter (61) during the downward pressing process; the torque value is set by the MCU controller (7); when the torque sensor senses that the torque reaches the set value, the lifting motor (4) stops descending, so that the cutter (61) performs hot cutting on the diaphragm of the battery cell (1a).

5. The battery cell diaphragm thermal cutting mechanism according to claim 4, characterized in that: The cutter assembly further comprises a temperature sensor, which is used to detect the temperature of the cutter (61).

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