Lithium battery cutting machine

Abstract

The utility model provides a lithium battery cutting machine, and belongs to the technical field of new energy batteries. The lithium battery cutting machine comprises a base, a bearing assembly, a cutting assembly and a control assembly. The bearing assembly comprises an electric sliding rail and a fixing base, the fixing base is installed on the electric sliding rail in a sliding mode, a hot melt adhesive layer is laid on the fixing base, and an electric heating wire is arranged between the fixing base and the hot melt adhesive layer. The cutting assembly comprises a portal frame, a connecting seat and a laser cutter, the connecting seat is slidably mounted on a transverse guide rail on the portal frame, the transverse guide rail is connected with the portal frame through an electric push rod, a displacement sensor is arranged in the transverse guide rail, and the laser cutter is mounted on the connecting seat. The control assembly comprises a console, an ultrasonic thickness gauge and an ultrasonic probe. The ultrasonic thickness gauge and the ultrasonic probe are arranged on the side, close to the portal frame, of the electric sliding rail. By the adoption of the lithium battery cutting machine, a shell can be accurately cut, internal battery cells are prevented from being damaged, and the recycling effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, in particular to a lithium battery cutting machine. Background Art

[0002] Lithium-ion batteries, one of the most popular energy storage devices, are widely used in new energy vehicles, various portable electronic devices, and communications equipment. The lifespan of a lithium-ion battery pack is generally around 10-15 years. Discarded lithium-ion batteries must be properly disposed of to minimize environmental damage and effectively recover various materials for economic value.

[0003] In the related art, for the recycling of waste lithium batteries, it is usually necessary to cut and disassemble the lithium battery shell in order to remove the internal battery cells with recycling value from the waste lithium battery. When using existing cutting equipment, it is usually necessary to clamp the shell of the waste lithium battery with a clamping device, and then cut the shell with a cutting mechanism such as a rotating saw blade. However, lithium batteries often have a variety of specifications based on their usage scenarios and models. A single cutting device is often unable to adapt to the cutting needs of lithium batteries of different specifications, and the cutting position on the lithium battery shell is often unable to be accurately located. As a result, it is easy to cut into the internal battery cells during the cutting process, causing damage and scrapping, affecting the recycling effect. Utility Model Content

[0004] The present invention provides a lithium battery cutting machine that can overcome the defects of existing lithium battery cutting equipment, achieve accurate cutting of the shell to avoid damaging the internal battery cells, and ensure the recycling effect. The technical solution is as follows:

[0005] The present invention provides a lithium battery cutting machine, comprising: a base and a supporting assembly, a cutting assembly and a control assembly arranged on the base.

[0006] The supporting assembly includes an electric slide rail and a fixed seat, the fixed seat is slidably mounted on the electric slide rail via a slide platform, a hot melt adhesive layer is laid on the fixed seat, and an electric heating wire is provided between the fixed seat and the hot melt adhesive layer;

[0007] The cutting assembly includes a gantry, a connecting seat and a laser cutter, wherein the gantry is located at one end of the electric slide rail, the connecting seat is slidably mounted on a transverse guide rail on the gantry, the transverse guide rail is perpendicular to the electric slide rail and is connected to the gantry via an electric push rod, a displacement sensor is provided in the transverse guide rail, the electric push rod is parallel to the electric slide rail, and the laser cutter is mounted on the connecting seat;

[0008] The control component includes a console, an ultrasonic thickness gauge and an ultrasonic probe. The ultrasonic thickness gauge and the ultrasonic probe are arranged on a side of the electric slide rail close to the gantry. The ultrasonic thickness gauge, the ultrasonic probe, the supporting component and the cutting component are all communicatively connected to the console.

[0009] Optionally, a rotary motor is provided on the slide, and an output shaft of the rotary motor is arranged in a vertical direction and connected to the fixing seat.

[0010] Optionally, a plurality of heating wires are provided, and the plurality of heating wires are arranged in parallel and at intervals.

[0011] Optionally, a driving cylinder is provided on the connecting seat, and an output shaft of the driving cylinder is arranged in a vertical direction and connected to the laser cutter.

[0012] Optionally, a dust removal box is further included, which is arranged below the gantry. A dust collection box is arranged inside the dust removal box. A through groove is opened on the upper edge of the dust removal box in a direction parallel to the electric slide rail. The bottom of the through groove is connected to the dust collection box, and an exhaust fan is arranged in the through groove.

[0013] Optionally, a side of the dust removal box close to the electric slide rail is provided with an abutment surface, the abutment surface is perpendicular to the electric slide rail, and the ultrasonic probe is embedded and installed on the abutment surface.

[0014] Optionally, a plurality of ultrasonic probes are provided, and the plurality of ultrasonic probes are evenly spaced apart in the horizontal direction.

[0015] Optionally, a dust shield plate arranged obliquely toward the dust box is provided at the connection between the through slot and the dust box.

[0016] Optionally, a screen is provided in the through slot, and the screen is arranged above the connection between the through slot and the dust collecting box, and the screen separates the exhaust fan and the opening of the through slot on the abutting surface.

[0017] Optionally, a mounting surface is provided on a side of the dust removal box away from the electric slide rail, and a discharge port matching the dust collection box is provided on the mounting surface.

[0018] The beneficial effects of the technical solution provided by the embodiment of the utility model include at least:

[0019] The lithium battery cutting machine provided by the embodiment of the present invention is used to recycle the cells of waste lithium batteries. It is controlled electrically as a whole by a console, and the hot melt adhesive layer is heated by an electric heating wire. After cooling, the waste lithium batteries are bonded and fixed to a fixed seat. The fixed seat is driven by a slide to feed the waste lithium batteries to the bottom of the laser cutter. Before cutting, an ultrasonic thickness gauge 42 is used in conjunction with an ultrasonic probe to detect the shell thickness of the waste lithium battery and feedback is sent to the console for calculation. The electric push rod is driven by a displacement sensor to calibrate the horizontal cutting position of the electric slide rail and the laser cutter so that the cutting position of the laser cutter matches the thickness of the lithium battery shell. Correction is performed before cutting. It can overcome the defects of existing lithium battery cutting equipment, achieve accurate cutting of the shell to avoid damaging the internal battery cells, and ensure the recycling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the lithium battery cutting machine provided by an embodiment of the utility model;

[0022] Figure 2 This is a side structural cross-sectional view of a lithium battery cutting machine provided by an embodiment of the present utility model;

[0023] Figure 3 yes Figure 2 A magnified view of the local structure at point A;

[0024] Figure 4 This is a schematic diagram of the internal drive structure of the lithium battery cutting machine provided by an embodiment of the present utility model.

[0025] In the figure: 1-base; 2-support assembly; 3-cutting assembly; 4-control assembly; 5-dust removal box; 21-electric slide rail; 22-fixed seat; 31-gantry; 32-connecting seat; 33-laser cutter; 41-control console; 42-ultrasonic thickness gauge; 43-ultrasonic probe; 51-dust collection box; 52-through slot; 53-exhaust fan; 54-abutment surface; 55-dust shield; 56-screen; 57-mounting surface; 221-slide; 222-hot melt adhesive layer; 223-heating wire; 224-rotating motor; 311-transverse guide rail; 312-electric push rod; 313-displacement sensor; 321-drive cylinder; 571-discharge port; a-servo motor; b-adjusting screw; c-sliding nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of the lithium battery cutting machine provided by an embodiment of the utility model; Figure 2 This is a side structural cross-sectional view of a lithium battery cutting machine provided by an embodiment of the present utility model; Figure 3 yes Figure 2 A magnified view of the local structure at point A; Figure 4 This is a schematic diagram of the internal drive structure of the lithium battery cutting machine provided by the embodiment of the utility model. Figures 1 to 4 As shown, an embodiment of the present invention provides a lithium battery cutting machine, comprising a base 1 and a supporting component 2, a cutting component 3 and a control component 4 arranged on the base 1.

[0028] Among them, the supporting component 2 includes an electric slide rail 21 and a fixed seat 22. The fixed seat 22 is slidably installed on the electric slide rail 21 through a slide 221. A hot melt adhesive layer 222 is laid on the fixed seat 22, and an electric heating wire 223 is arranged between the fixed seat 22 and the hot melt adhesive layer 222.

[0029] The cutting assembly 3 includes a gantry 31, a connecting seat 32 and a laser cutter 33. The gantry 31 is located at one end of the electric slide 21. The connecting seat 32 can be slidably installed on the transverse guide rail 311 on the gantry 31. The transverse guide rail 311 is perpendicular to the electric slide 21 and is connected to the gantry 31 through an electric push rod 312. A displacement sensor 313 is provided in the transverse guide rail 311. The electric push rod 312 is parallel to the electric slide 21. The laser cutter 33 is installed on the connecting seat 32.

[0030] The control component 4 includes a console 41, an ultrasonic thickness gauge 42 and an ultrasonic probe 43. The ultrasonic thickness gauge 42 and the ultrasonic probe 43 are arranged on the side of the electric slide 21 close to the gantry 31. The ultrasonic thickness gauge 42, the ultrasonic probe 43, the supporting component 2 and the cutting component 3 are all communicatively connected to the console 41.

[0031] In an embodiment of the present invention, when using the lithium battery cutting machine to recycle waste lithium battery cells, the lithium battery to be recycled is first placed on the fixing seat 22. The fixing seat 22 is controlled by a signal from the control console 41, and the electric heating wire 223 is activated to heat and soften the hot melt adhesive layer 222 laid on it. The softened hot melt adhesive layer 222 will adhere to the waste lithium battery. The electric heating wire 223 is then controlled to be turned off to no longer heat the hot melt adhesive layer 222. After the hot melt adhesive layer 222 cools and solidifies, the waste lithium battery to be cut is fixed to the fixing seat 22. Finally, the slide 221 drives the fixing seat 22 to move to the end of the electric slide rail 21 near the gantry 31, and the side of the waste lithium battery shell to be cut is transported to the bottom of the gantry 31. After the waste lithium battery is delivered to the destination, the console 41 controls the ultrasonic thickness gauge 42 to send ultrasonic pulses to the waste lithium battery through the ultrasonic probe 43. The ultrasonic pulses will pass through the shell of the waste lithium battery and be reflected at the interface between the shell and the battery cell. After the ultrasonic probe 43 receives the reflected ultrasonic pulses, the ultrasonic thickness gauge 42 calculates the thickness of the lithium battery shell based on the time difference between the ultrasonic probe 43 sending and receiving the ultrasonic pulses, and inputs the calculated data into the console 41. The console 41 starts the electric push rod 312, and the electric push rod 312 will push the electric slide 21 forward. The electric slide 21 will drive the laser cutter 33 to move outward through the connecting seat 32, and the displacement The sensor 313 will detect the moving distance of the electric slide rail 21. When the moving distance of the electric slide rail 21 is the same as the shell thickness detected by the ultrasonic thickness gauge 42, the console 41 will turn off the electric push rod 312. The electric push rod 312 will no longer push the electric slide rail 21 and the laser cutter 33 to move outward. The console 41 will start the laser cutter 33, and the laser cutter 33 will emit a high-energy laser. At the same time, the console 41 will control the connecting seat 32 to slide laterally along the transverse guide rail 311, driving the laser cutter 33 to move left and right. The laser cutter 33 that moves left and right will cut the waste lithium battery with the high-energy laser emitted until one side of the shell of the waste lithium battery is cut open, and the staff can then take out the internal battery cell.

[0032] The lithium battery cutting machine provided by the embodiment of the present invention is used to recycle the cells of waste lithium batteries. It is controlled electrically by the control console 41. The hot melt adhesive layer 222 is heated by the heating wire 223. After cooling, the waste lithium batteries are bonded and fixed to the fixing seat. The slide 221 drives the fixing seat 22 to feed the waste lithium batteries to the bottom of the laser cutter 33. Before cutting, the ultrasonic thickness gauge 42 is used in conjunction with the ultrasonic probe 43 to detect the thickness of the waste lithium battery shell and feedback is sent to the control console 41 for calculation. The displacement sensor 313 is used to drive the electric push rod 312 to calibrate the horizontal cutting position of the electric slide 21 and the laser cutter 33 so that the cutting position of the laser cutter 33 matches the thickness of the lithium battery shell. Correction is performed before cutting. This can overcome the defects of existing lithium battery cutting equipment, achieve accurate cutting of the shell to avoid damaging the internal battery cells, and ensure the recycling effect.

[0033] For example, refer to Figure 4 In an embodiment of the utility model, the slidable connection between the slide 221 and the electric slide 21, and between the connecting seat 32 and the transverse guide rail 311, all adopt a driving structure of a servo motor a in conjunction with an adjusting screw b. When sliding adjustment of the corresponding position is required, the servo motor a located on one side is controlled by the console 41 to drive the adjusting screw b to rotate. The adjusting screw b is provided with a sliding nut c, which can be used to connect with the slide 221 or the connecting seat 32. The servo motor a is fixed in the electric slide 21 or the transverse guide rail 311 as the driving end. By driving the adjusting screw b to rotate, the sliding nut c is driven to move laterally along the adjusting screw b, thereby driving the movement of the slide 221 or the connecting seat 32.

[0034] Optionally, a rotary motor 224 is provided on the slide 221, and the output shaft of the rotary motor 224 is arranged in a vertical direction and connected to the fixed base 22. For example, in an embodiment of the present invention, after the waste lithium battery is laser cut, the cutting opening on its shell is facing the side of the gantry 31. By providing a rotary motor 223 on the slide 221, after the cutting is completed, the slide 221 drives the fixed base 22 and the lithium battery supported on it to move to the end of the electric slide 21 away from the gantry 31, and then the rotary motor 224 drives the fixed base 22 to rotate horizontally relative to the base 1, so that the cutting opening on the shell is rotated to another direction, making it convenient for the staff to remove the internal battery cells and recycle the shell after cutting. When loading and fixing the waste lithium battery, it can also be placed in a posture that is convenient for loading and fixing. After bonding and fixing, the side to be cut is rotated to the side facing the gantry 31 by rotating the fixed base 22, thereby improving the practicality of the lithium battery cutting machine.

[0035] Optionally, multiple heating wires 223 are provided, and the multiple heating wires 223 are arranged in parallel and spaced apart. For example, in an embodiment of the present utility model, multiple heating wires 223 are arranged in parallel and spaced apart on the fixing base 22, which use the form of resistance heating to uniformly heat the hot melt adhesive layer 222 laid thereon, ensuring the coverage area, so that each part of the hot melt adhesive can be evenly melted, and the adhesive fixation effect of the waste lithium battery is guaranteed.

[0036] Optionally, a drive cylinder 321 is provided on the connecting base 32, and the output shaft of the drive cylinder 321 is arranged in the vertical direction and connected to the laser cutter 33. For example, in the embodiment of the present utility model, by providing the drive cylinder 321 with a vertically arranged output shaft, the connecting base 32 can be driven to rise and fall in the vertical direction, thereby avoiding interference between the laser cutter 33 and the top of the waste lithium battery shell, thereby adapting to the cutting of lithium batteries of different heights and improving overall adaptability.

[0037] Optionally, a dust box 5 is further included. The dust box 5 is disposed below the gantry 31. A dust box 51 is disposed within the dust box 5. A through slot 52 is provided on the dust box 5 in a direction parallel to the electric slide rail 21. The bottom of the through slot 52 is connected to the dust box 51. An exhaust fan 53 is disposed within the through slot 52. For example, in an embodiment of the present invention, by providing the dust box 5, when cutting the shells of used lithium batteries, by activating the exhaust fan 53 within the through slot 52, debris and air generated during the cutting process can be sucked in through the opening of the through slot 52 near the side of the gantry 31 and collected in the dust box 5. Furthermore, a screen 56 is disposed within the through slot 52. The screen 56 is arranged above the connection between the through slot 52 and the dust box 51, and the screen 56 separates the exhaust fan from the opening of the through slot 52 on the abutment surface 54. The screen 56 can be used to block the debris and ensure the passage of hot air. A dust shield 55 is provided at the connection between the through slot 52 and the dust box 51, which is tilted toward the dust box 51. The inclined surface is used to guide the debris and impurities to fall steadily into the dust box 51 below under the action of gravity. While avoiding pollution caused by splashing cutting debris and personal safety of workers, the heat generated by laser cutting of waste lithium batteries can be taken away by the fast-flowing air, thereby further improving safety.

[0038] Optionally, a contact surface 54 is provided on the side of the dust removal box 5 close to the electric slide rail 21. The contact surface 54 is perpendicular to the electric slide rail 21, and the ultrasonic probe 43 is embedded and installed on the contact surface 54. For example, in an embodiment of the present utility model, the dust removal box 5 can also be provided with an abutment surface 54 to abut and position the side surface of the shell of the waste lithium battery to be cut. The abutment surface 54 is located below the initial position of the laser cutter 33. After the waste lithium battery is loaded, it is used as a reference surface to abut against the abutment surface 54. Then, based on the detection structure of the ultrasonic thickness gauge 42 and the ultrasonic probe 43, the position of the laser cutter 33 is adjusted.

[0039] Optionally, multiple ultrasonic probes 43 are provided, and the multiple ultrasonic probes 43 are evenly spaced in the horizontal direction. For example, in an embodiment of the present invention, multiple ultrasonic probes 43 are provided in parallel, which can perform multi-point overall detection of the shell thickness of the waste lithium battery, ensuring the accuracy of thickness calculation and position adjustment of the laser cutter 33.

[0040] Optionally, a mounting surface 57 is provided on the side of the dust box 5 away from the electric slide rail 21, and a discharge port 571 is provided on the mounting surface 57 to match the dust box 51. For example, in the embodiment of the present utility model, after multiple operations, the discharge port 571 can be opened through the side of the mounting surface 57, and the dust box 51 can be taken out to clean out debris and impurities in a timely manner, thereby improving practicality.

[0041] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present invention belongs. The terms "first", "second" and similar words used in the specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] The above description is only an optional embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lithium battery cutting machine, characterized in that: include: A base (1) and a supporting assembly (2), a cutting assembly (3) and a control assembly (4) arranged on the base (1), The supporting assembly (2) comprises an electric slide rail (21) and a fixed seat (22), wherein the fixed seat (22) is slidably mounted on the electric slide rail (21) via a slide platform (221), a hot melt adhesive layer (222) is provided on the fixed seat (22), and an electric heating wire (223) is provided between the fixed seat (22) and the hot melt adhesive layer (222); The cutting assembly (3) comprises a gantry (31), a connecting seat (32) and a laser cutter (33), wherein the gantry (31) is located at one end of the electric slide rail (21), and the connecting seat (32) is slidably mounted on a transverse guide rail (311) on the gantry (31), wherein the transverse guide rail (311) is perpendicular to the electric slide rail (21) and is connected to the gantry (31) via an electric push rod (312), wherein a displacement sensor (313) is provided in the transverse guide rail (311), and the electric push rod (312) is parallel to the electric slide rail (21), and the laser cutter (33) is mounted on the connecting seat (32); The control assembly (4) comprises a console (41), an ultrasonic thickness gauge (42) and an ultrasonic probe (43); the ultrasonic thickness gauge (42) and the ultrasonic probe (43) are arranged on a side of the electric slide rail (21) close to the gantry (31); the ultrasonic thickness gauge (42), the ultrasonic probe (43), the supporting assembly (2) and the cutting assembly (3) are all in communication connection with the console (41).

2. A lithium battery cutting machine according to claim 1, characterized in that: A rotating motor (224) is provided on the slide (221), and an output shaft of the rotating motor (224) is arranged in a vertical direction and connected to the fixing seat (22).

3. The lithium battery cutting machine according to claim 1, characterized in that: A plurality of heating wires (223) are provided, and the plurality of heating wires (223) are arranged in parallel and at intervals.

4. The lithium battery cutting machine according to claim 1, characterized in that: A driving cylinder (321) is provided on the connecting seat (32), and an output shaft of the driving cylinder (321) is arranged in a vertical direction and connected to the laser cutter (33).

5. A lithium battery cutting machine according to any one of claims 1 to 4, characterized in that: The utility model further comprises a dust removal box (5), wherein the dust removal box (5) is arranged below the gantry (31), a dust collecting box (51) is arranged inside the dust removal box (5), a through slot (52) is provided on the dust removal box (5) in a direction parallel to the electric slide rail (21), the bottom of the through slot (52) is connected to the dust collecting box (51), and an exhaust fan (53) is arranged in the through slot (52).

6. The lithium battery cutting machine according to claim 5, characterized in that: A contact surface (54) is provided on one side of the dust removal box (5) close to the electric slide rail (21), the contact surface (54) is perpendicular to the electric slide rail (21), and the ultrasonic probe (43) is embedded and installed on the contact surface (54).

7. The lithium battery cutting machine according to claim 6, characterized in that: A plurality of ultrasonic probes (43) are provided, and the plurality of ultrasonic probes (43) are evenly spaced apart in the horizontal direction.

8. The lithium battery cutting machine according to claim 6, characterized in that: A dust shield (55) is provided at the connection between the through slot (52) and the dust collecting box (51), and is arranged obliquely toward the dust collecting box (51).

9. The lithium battery cutting machine according to claim 8, characterized in that: A screen (56) is provided in the through slot (52), and the screen (56) is arranged above the connection between the through slot (52) and the dust collecting box (51). The screen (56) separates the exhaust fan (53) and the opening of the through slot (52) on the abutting surface (54).

10. The lithium battery cutting machine according to claim 5, characterized in that: A mounting surface (57) is provided on a side of the dust removal box (5) away from the electric slide rail (21), and a discharge port (571) matching the dust collection box (51) is provided on the mounting surface (57).

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