Diaphragm lamination device for lithium battery processing

Abstract

The utility model provides a lithium battery processing diaphragm lamination device, which belongs to the field of lithium battery processing equipment and comprises a processing table, an unwinding assembly and a feeding assembly. A mounting plate is fixedly mounted on one side of the surface of the machining table, and a control panel is mounted on one side of the surface of the machining table. The supporting frames are installed on the two sides of the surface of the processing table, the discharging tables are installed on the tops of the supporting frames, the positive pole piece and the negative pole piece are placed on the discharging tables on the two sides respectively, the electric push rod is arranged on the surface of the installation plate, the electric push rod corresponds to the two discharging tables, feeding is achieved through double feeding stations during lamination, and a single feeding mode is replaced. The feeding speed is increased, and the production efficiency is met.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery processing equipment, in particular to a lithium battery processing diaphragm lamination device. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and a non-aqueous electrolyte solution. The stacking process and the winding process are the two main production methods of lithium batteries. The stacking process is to cut the positive and negative electrode sheets and separators into specified sizes and then stack the positive electrode sheets, separators, and negative electrode sheets into small battery cells, and then stack the small battery cells in parallel to form a large battery cell; while the winding process is to fix the stripped sheets on a winding needle, and as the winding needle rotates, the positive electrode sheets, negative electrode sheets and separators are rolled into battery cells. Compared with the winding process, the batteries manufactured by the stacking process have better cycle characteristics and safety characteristics. In the existing stacking process, the positive and negative electrode sheets are usually fed by a single feeding structure, which requires reciprocating material collection between the positive and negative electrode sheet stations, thereby reducing production efficiency. Utility Model Content

[0003] The purpose of the present utility model is to provide a lithium battery processing diaphragm lamination device to solve the problem that in the existing lamination process proposed in the above background technology, the positive and negative electrode sheets are usually fed by a single feeding structure, which requires reciprocating material extraction between the positive and negative electrode sheet stations, thereby reducing production efficiency.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A lithium battery diaphragm lamination device comprises a processing table, an unwinding assembly, and a feeding assembly; wherein: a mounting plate is fixedly mounted on one side of the surface of the processing table, and a control panel is mounted on one side of the surface of the processing table;

[0006] The unwinding assembly includes an unwinding shaft rotatably mounted on one side of the top of the mounting plate, a diaphragm roller is mounted on the surface of the unwinding shaft, a servo motor is mounted on the back of the mounting plate, the output end of the servo motor is transmission-fixedly connected to one end of the unwinding shaft, and a guide roller is rotatably mounted on the top of the mounting plate;

[0007] The feeding assembly includes support frames mounted on both sides of the processing table surface, with a material unloading platform mounted on top of the support frames. A motorized push rod is mounted on the surface of the mounting plate corresponding to the top of the material unloading platform, and a suction cup is mounted on the telescopic end of the motorized push rod. As a preferred embodiment of the present invention, a driving pulley is fixedly mounted on the output end of the servo motor, and a driven pulley is fixedly mounted on one end of the unwinding shaft. The driving and driven pulleys are connected by a synchronous belt drive.

[0008] As a preferred embodiment of the present invention: a base is mounted in the middle of the surface of the mounting plate, a bearing seat is mounted on the surface of the base, a lead screw is rotatably mounted in the middle of the bearing seat, a stepper motor is mounted at one end of the base, the output end of the stepper motor is fixedly connected to one end of the lead screw, a moving block is slidably mounted on the surface of the lead screw, a support plate is mounted on the moving block, and the electric push rod is fixedly mounted on both sides of the surface of the support plate. As a preferred embodiment of the present invention: limit blocks are mounted on both sides of the bottom of the support plate, slide rails are mounted on both sides of the surface of the base, and the limit blocks are slidably mounted on the surface of the slide rails.

[0009] As a preferred solution of the present invention: a stacking platform is fixedly installed in the middle of the surface of the processing table, a mounting frame is installed in the middle of the surface of the support plate, and a roller is rotatably installed inside the mounting frame.

[0010] As a preferred solution of the present invention: an electric cylinder is fixedly mounted on the surface of the mounting plate, a mounting block is mounted on the telescopic end of the electric cylinder, and a tensioning roller is rotatably mounted on the surface of the mounting block.

[0011] As a preferred solution of the present invention: a limit disk is installed at one end of the unwinding shaft.

[0012] As a preferred solution of the present invention: the servo motor, electric push rod, stepper motor and electric cylinder are all electrically connected to the control panel, and the control panel is electrically connected to the external power supply.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Support frames are installed on both sides of the processing table. A discharge table is installed on the top of the support frame. The positive and negative electrode sheets are placed on the discharge tables on both sides respectively. Electric push rods are provided on the surface of the mounting plate. The electric push rods correspond to the two discharge tables, so that the double feeding station can realize the feeding during the stacking, replacing the single feeding method, improving the feeding speed and meeting the production efficiency.

[0015] 2. Through the unwinding assembly, when the diaphragm roller is placed on the surface of the unwinding shaft, the servo motor is controlled to rotate to drive the active pulley to rotate, and the active pulley drives the driven pulley to follow the rotation through the synchronous belt, thereby causing the unwinding shaft to rotate. The diaphragm roller is driven by the unwinding shaft to unwind the diaphragm wound between the guide rollers, which is convenient for providing diaphragm material for the laminated structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the guide roller installation structure of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the unwinding component of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the tensioning roller of the utility model;

[0020] Figure 5 This is a schematic diagram of the support plate installation structure of the present utility model.

[0021] In the figure: 1. Processing table; 2. Mounting plate; 3. Control panel; 4. Unwinding assembly; 41. Unwinding shaft; 42. Diaphragm roller; 43. Servo motor; 44. Guide roller; 45. Driving pulley; 46. Driven pulley; 47. Synchronous belt; 5. Feeding assembly; 51. Support frame; 52. Unwinding table; 53. Electric push rod; 54. Suction cup; 6. Base; 7. Bearing seat; 8. Screw; 9. Stepper motor; 10. Moving block; 11. Support plate; 12. Limit block; 13. Slide rail; 14. Stacking platform; 15. Mounting frame; 16. Roller; 17. Electric cylinder; 18. Mounting block; 19. Tensioning roller; 20. Limit disk. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5 A lithium battery diaphragm lamination device includes: a processing table 1, an unwinding assembly 4, and a feeding assembly 5; a mounting plate 2 is fixedly mounted on one side of the surface of the processing table 1, and a control panel 3 is mounted on one side of the surface of the processing table 1;

[0024] See also Figure 1 , Figure 2 , Figure 3 The unwinding assembly 4 includes an unwinding shaft 41 rotatably mounted on one side of the top of the mounting plate 2, a diaphragm roller 42 is mounted on the surface of the unwinding shaft 41, a servo motor 43 is mounted on the back of the mounting plate 2, the output end of the servo motor 43 is fixedly connected to one end of the unwinding shaft 41 for transmission, a guide roller 44 is rotatably mounted on the top of the mounting plate 2, a driving pulley 45 is fixedly mounted on the output end of the servo motor 43, and a driven pulley 46 is fixedly mounted on one end of the unwinding shaft 41, and the driving pulley 45 and the driven pulley 46 are connected through a synchronous belt 47 for transmission.

[0025] During specific use: after the diaphragm roller 42 is placed on the surface of the unwinding shaft 41, the servo motor 43 is controlled to rotate to drive the active pulley 45 to rotate, and the active pulley 45 drives the driven pulley 46 to follow the rotation through the synchronous belt 47, thereby causing the unwinding shaft 41 to rotate, and the diaphragm roller 42 is driven by the unwinding shaft 41 to unwind the diaphragm wound between the guide rollers 44, so as to provide diaphragm material for the laminated structure.

[0026] See also Figure 1 , Figure 2 , Figure 5 The feeding assembly 5 includes a support frame 51 installed on both sides of the surface of the processing table 1, a discharge platform 52 is installed on the top of the support frame 51, and an electric push rod 53 is provided on the surface of the mounting plate 2 corresponding to the top of the discharge platform 52, and a suction cup 54 is installed at the telescopic end of the electric push rod 53.

[0027] During specific use: support frames 51 are installed on both sides of the surface of the processing table 1, and a discharge platform 52 is installed on the top of the support frame 51. The positive and negative electrode sheets are placed on the discharge platforms 52 on both sides respectively. An electric push rod 53 is provided on the surface of the mounting plate 2. The electric push rod 53 corresponds to the two discharge platforms 52. The electric push rod 53 drives the suction cup 54 to take the positive and negative electrode sheets, so that the feeding during stacking can be realized through the double feeding station, replacing the single feeding method, improving the feeding speed and meeting the production efficiency.

[0028] See also Figure 5 A base 6 is installed in the middle of the surface of the mounting plate 2, and a bearing seat 7 is installed on the surface of the base 6. A screw rod 8 is rotatably installed in the middle of the bearing seat 7. A stepping motor 9 is installed at one end of the base 6. The output end of the stepping motor 9 is fixedly connected to one end of the screw rod 8. A moving block 10 is slidably installed on the surface of the screw rod 8, and a support plate 11 is installed on the moving block 10. The electric push rod 53 is fixedly installed on both sides of the surface of the support plate 11, and limit blocks 12 are installed on both sides of the bottom of the support plate 11. Slide rails 13 are installed on both sides of the surface of the base 6, and the limit blocks 12 are slidably installed on the surface of the slide rails 13. A stacking platform 14 is fixedly installed in the middle of the surface of the processing table 1, and a mounting frame 15 is installed in the middle of the surface of the support plate 11. A roller 16 is rotatably installed inside the mounting frame 15.

[0029] During specific use: a base 6 is installed in the middle of the surface of the mounting plate 2, and a bearing seat 7 is installed on the surface of the base 6. When the stepping motor 9 rotates, it drives the screw rod 8 to rotate inside the bearing seat 7. The rotation of the screw rod 8 drives the moving block 10 installed on the surface to move, and the moving block 10 drives the support plate 11 to move. The support plate 11 moves along the slide rail 13 through the limit block 12 at the bottom, so that the electric push rod 53 installed on both sides of the surface of the support plate 11 moves, so that the electric push rod 53 drives the suction cup 54 to move back and forth between the discharge table 52 and the stacking platform 14. At the same time, a roller 16 is installed inside the mounting frame 15 on the surface of the support plate 11. The diaphragm passes through the roller 16 and is stacked in a zigzag shape under the drive of the support plate 11, which is convenient for separating the positive and negative pole pieces to realize processing and production.

[0030] See also Figure 4 An electric cylinder 17 is fixedly mounted on the surface of the mounting plate 2, a mounting block 18 is mounted on the telescopic end of the electric cylinder 17, and a tensioning roller 19 is rotatably mounted on the surface of the mounting block 18.

[0031] During specific use: the electric cylinder 17 drives the mounting block 18 at the telescopic end to rise and fall, and the mounting block 18 drives the tensioning roller 19 on the surface to move relative to the guide roller 44, so as to facilitate the tensioning adjustment of the diaphragm wound between the tensioning roller 19 and the guide roller 44 to avoid wrinkles on the diaphragm.

[0032] See also Figure 1 , Figure 3 A limit disk 20 is installed at one end of the unwinding shaft 41.

[0033] During specific use: a limit disk 20 is installed at one end of the unwinding shaft 41, and the limit disk 20 is used to limit the unwinding shaft 41 on the rear surface of the unwinding shaft 41. After use, the limit disk 20 can be removed to replace a new diaphragm roller 42.

[0034] See also Figure 1 The servo motor 43, the electric push rod 53, the stepper motor 9 and the electric cylinder 17 are all electrically connected to the control panel 3, and the control panel 3 is electrically connected to the external power supply.

[0035] During specific use: when the control panel 3 is connected to the external power supply, the servo motor 43, the electric push rod 53, the stepper motor 9 and the electric cylinder 17 are powered and operated under control; when the control panel 3 is disconnected from the external power supply, the equipment stops running.

[0036] Support frames 51 are installed on both sides of the surface of the processing table 1, and a discharge platform 52 is installed on the top of the support frame 51. The positive and negative electrode sheets are placed on the discharge platforms 52 on both sides respectively. An electric push rod 53 is provided on the surface of the mounting plate 2. The electric push rod 53 corresponds to the two discharge platforms 52. The electric push rod 53 drives the suction cup 54 to take the positive and negative electrode sheets, so that the feeding during stacking can be realized through the double feeding station, replacing the single feeding method, improving the feeding speed and meeting the production efficiency.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. 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 processing diaphragm lamination device, characterized in that: include: A processing table (1), a mounting plate (2) being fixedly mounted on one side of the surface of the processing table (1), and a control panel (3) being mounted on one side of the surface of the processing table (1); An unwinding assembly (4), the unwinding assembly (4) comprising an unwinding shaft (41) rotatably mounted on one side of the top of the mounting plate (2), a diaphragm roller (42) being mounted on the surface of the unwinding shaft (41), a servo motor (43) being mounted on the back of the mounting plate (2), an output end of the servo motor (43) being transmission-fixedly connected to one end of the unwinding shaft (41), and a guide roller (44) being rotatably mounted on the top of the mounting plate (2); A feeding assembly (5) includes a support frame (51) mounted on both sides of the surface of the processing table (1), a discharge table (52) is mounted on the top of the support frame (51), an electric push rod (53) is provided on the surface of the mounting plate (2) corresponding to the top of the discharge table (52), and a suction cup (54) is mounted on the telescopic end of the electric push rod (53).

2. The device for processing a lithium battery diaphragm lamination according to claim 1, characterized in that: The output end of the servo motor (43) is fixedly mounted with a driving pulley (45), one end of the unwinding shaft (41) is fixedly mounted with a driven pulley (46), and the driving pulley (45) and the driven pulley (46) are connected by a synchronous belt (47).

3. The lithium battery diaphragm lamination device according to claim 2, characterized in that: A base (6) is installed in the middle of the surface of the mounting plate (2), a bearing seat (7) is installed on the surface of the base (6), a screw rod (8) is rotatably installed in the middle of the bearing seat (7), a stepper motor (9) is installed at one end of the base (6), the output end of the stepper motor (9) is fixedly connected to one end of the screw rod (8), a moving block (10) is slidably installed on the surface of the screw rod (8), a support plate (11) is installed on the moving block (10), and the electric push rod (53) is fixedly installed on both sides of the surface of the support plate (11).

4. The device for processing a lithium battery diaphragm lamination according to claim 3, characterized in that: Limiting blocks (12) are installed on both sides of the bottom of the support plate (11), and slide rails (13) are installed on both sides of the surface of the base (6), and the limiting blocks (12) are slidably installed on the surface of the slide rails (13).

5. The lithium battery diaphragm lamination device according to claim 3, characterized in that: A stacking platform (14) is fixedly installed in the middle of the surface of the processing table (1), a mounting frame (15) is installed in the middle of the surface of the support plate (11), and a roller (16) is rotatably installed inside the mounting frame (15).

6. The lithium battery diaphragm lamination device according to claim 3, characterized in that: An electric cylinder (17) is fixedly mounted on the surface of the mounting plate (2), a mounting block (18) is mounted on the telescopic end of the electric cylinder (17), and a tensioning roller (19) is rotatably mounted on the surface of the mounting block (18).

7. The lithium battery diaphragm lamination device according to claim 1, characterized in that: A limiting disk (20) is installed at one end of the unwinding shaft (41).

8. The lithium battery diaphragm lamination device according to claim 6, characterized in that: The servo motor (43), the electric push rod (53), the stepper motor (9) and the electric cylinder (17) are all electrically connected to the control panel (3), and the control panel (3) is electrically connected to an external power supply.

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