Automatic cold pressing device for battery cells

Abstract

The utility model discloses an automatic cold pressing device for battery cells, comprising: a rack for cold pressing of battery cells, wherein the number of the racks is set to two and they are arranged symmetrically on the left and right, a slide groove is set on the rack, an adjustment component is set between the two racks, the adjustment component comprises a slider, an adjustment rod, an upper fastening ring, a middle fastening ring, a bottom fastening ring, an infrared distance sensor and an adjustment shaft, the slider is slidably connected with an adjustment rod up and down, and the circumferential surface of the adjustment rod is threadedly connected with an upper fastening ring, a middle fastening ring and a bottom fastening ring. By setting a slider, an adjustment rod, an upper fastening ring, a middle fastening ring, a bottom fastening ring, an infrared distance sensor and an adjustment shaft, when cold pressing of battery cells of different thicknesses is required, the upper fastening ring, the middle fastening ring and the bottom fastening ring can be adjusted, thereby changing the upper and lower distances between the adjustment shaft and the fixed shaft, so as to perform cold pressing of battery cells of different thicknesses, thereby improving the practicality of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core cold pressing, in particular to an automatic battery core cold pressing device. Background Art

[0002] In the production of battery cells, the positive electrode material, negative electrode material, conductive agent, binder and solvent must be mixed in proportion, stirred evenly in a high-speed mixer to form a slurry, and then the slurry is evenly applied between the positive and negative electrode sheets, and then sintered to form a battery cell. Finally, the dried battery cell is sent to the cold press, the motor drives the pressing roller to rotate, and the winding mechanism pulls the electrode sheet through the roller gap and is pressed to the required compaction density, completing the cold pressing process of the battery cell.

[0003] In the existing automatic cold pressing device for battery cells, it is impossible to cold press cells of different thicknesses, the practicability of the device is insufficient, and the manufactured cells are prone to a large amount of impurities attached due to static electricity, which are difficult to clean. In addition, during the cold pressing process, impurities will be pressed into the cells, reducing the quality of the cells. Utility Model Content

[0004] The utility model aims to provide an automatic cold pressing device for battery cells. When cold pressing is required for battery cells of different thicknesses, the upper fastening ring, the middle fastening ring and the bottom fastening ring can be adjusted, thereby changing the upper and lower distances between the adjustment shaft and the fixed shaft, thereby cold pressing battery cells of different thicknesses and improving the practicability of the device. The ion wind blown out by the ion wind rod can neutralize the static electricity accumulated on the surface of the battery cell and blow away impurities attached due to static electricity, thereby improving the cleanliness of the surface of the battery cell and thus improving the quality of the battery cell after cold pressing.

[0005] To achieve the above-mentioned purpose, an automatic cold pressing device for battery cells is provided, comprising: a rack for cold pressing of battery cells, the number of the racks is provided with two and they are symmetrically arranged on the left and right, a slide groove is provided on the rack, an adjusting component is provided between the two racks, the adjusting component comprises a slider, an adjusting rod, an upper fastening ring, a middle fastening ring, a bottom fastening ring, an infrared ranging sensor and an adjusting shaft, the slider is slidably connected with the adjusting rod above and below, the upper fastening ring, the middle fastening ring and the bottom fastening ring are threadedly connected on the circumferential surface of the adjusting rod, the bottom of the slider is fixedly connected with the infrared ranging sensor, the number of the sliders, the adjusting rod and the infrared ranging sensor are all provided with two and they are symmetrically arranged on the left and right, an adjusting shaft is rotatably connected between the two sliders, a fixed shaft, a guide roller and a winding roller are rotatably connected between the two racks, an ion wind rod is fixedly connected between the two racks, and the main motor and the winding motor are fixedly connected to the left rack.

[0006] According to the automatic cold pressing device for battery cells, the number of the ion wind rods is multiple and symmetrically distributed at the front and rear ends of the fixed axis, and the air outlets of the ion wind rods are all inclined.

[0007] According to the automatic cold pressing device for battery cells, the number of the guide rollers is two and they are symmetrically arranged front to back, and the ion wind rod, the fixed shaft and the adjustment shaft are all located between the two guide rollers.

[0008] According to the automatic cold pressing device for battery cells, the output end of the main motor is fixedly connected to a fixed shaft, and the fixed shaft is located below the adjusting shaft.

[0009] According to the automatic cold pressing device for battery cells, the winding roller is located behind the guide roller, and the output end of the winding motor is fixedly connected to the winding roller.

[0010] According to the automatic cold pressing device for battery cells, the upper fastening ring, the middle fastening ring and the bottom fastening ring are all provided in plurality, the upper fastening ring is located above the frame, the middle fastening ring and the bottom fastening ring are both located inside the slide groove and on the upper and lower sides of the slider.

[0011] According to the automatic cold pressing device for battery cells, the infrared ranging sensor is electrically connected to an external display device.

[0012] According to the automatic cold pressing device for battery cells, the top of the adjusting rod passes through the frame, and the bottom of the adjusting rod is rotatably connected to the frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting a slider, an adjusting rod, an upper fastening ring, a middle fastening ring, a bottom fastening ring, an infrared ranging sensor and an adjusting shaft, when it is necessary to cold-press batteries of different thicknesses, the upper fastening ring, the middle fastening ring and the bottom fastening ring can be adjusted, thereby changing the upper and lower distances between the adjusting shaft and the fixed shaft, so as to cold-press batteries of different thicknesses and improve the practicability of the device;

[0015] 2. By setting up an ion wind rod, the ion wind blown by the ion wind rod can neutralize the static electricity accumulated on the surface of the battery cell, and blow away the impurities attached by static electricity, thereby improving the cleanliness of the surface of the battery cell and thus improving the quality of the battery cell after cold pressing.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 This is a front view of the automatic cold pressing device for battery cells of the utility model;

[0019] Figure 2 It is a top view of the automatic cold pressing device for battery cells of the utility model;

[0020] Figure 3 This is a structural diagram of the regulating assembly of the automatic cold pressing device for battery cells of the utility model;

[0021] Figure 4 It is a side view of the automatic cold pressing device for battery cells of the utility model.

[0022] In the figure: 1. frame; 2. slide; 3. adjustment component; 4. fixed shaft; 5. main motor; 6. ion wind rod; 7. guide roller; 8. winding roller; 9. winding motor; 301. slider; 302. adjustment rod; 303. upper fastening ring; 304. middle fastening ring; 305. bottom fastening ring; 306. infrared ranging sensor; 307. adjustment shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 4The utility model provides a technical solution: an automatic cold pressing device for battery cells, comprising: a rack 1 for cold pressing of battery cells, two racks 1 are provided and are symmetrically arranged on the left and right, a slide groove 2 is provided on the rack 1, an adjustment component 3 is provided between the two racks 1, the adjustment component 3 comprises a slider 301, an adjustment rod 302, an upper fastening ring 303, a middle fastening ring 304, a bottom fastening ring 305, an infrared ranging sensor 306 and an adjustment shaft 307, the slider 301 is slidably connected with the adjustment rod 302 above and below, the top of the adjustment rod 302 passes through the rack 1, the bottom of the adjustment rod 302 is rotatably connected with the rack 1, the upper fastening ring 303, the middle fastening ring 304 and the bottom fastening ring 305 are threadedly connected on the circumferential surface of the adjustment rod 302, the number of the upper fastening ring 303, the middle fastening ring 304 and the bottom fastening ring 305 There are multiple ones, an upper fastening ring 303 is located above the frame 1, a middle fastening ring 304 and a bottom fastening ring 305 are both located inside the slide groove 2 and on the upper and lower sides of the slider 301. When the adjustment is completed, the upper fastening ring 303, the middle fastening ring 304 and the bottom fastening ring 305 can be locked to stabilize the slider 301. An infrared ranging sensor 306 is fixedly connected to the bottom of the slider 301. There are two sliders 301, adjustment rods 302 and infrared ranging sensors 306, and they are symmetrically arranged on the left and right. The infrared ranging sensor 306 is electrically connected to an external display device. The infrared ranging sensor 306 is used to measure the distance between the slider 301 and the frame 1 after adjustment, so that the height adjustment can be completed accurately to adapt to battery cells of different thicknesses. An adjustment shaft 307 is rotatably connected between the two sliders 301.

[0025] A fixed shaft 4, a guide roller 7 and a winding roller 8 are rotatably connected between the two frames 1. The fixed shaft 4 is located below the adjusting shaft 307. There are two guide rollers 7, which are symmetrically arranged front and back. The winding roller 8 is located behind the guide roller 7. The ion wind rod 6, the fixed shaft 4 and the adjusting shaft 307 are all located between the two guide rollers 7. An ion wind rod 6 is fixedly connected between the two frames 1. There are multiple ion wind rods 6, which are symmetrically distributed at the front and rear ends of the fixed shaft 4. The air outlets of the ion wind rods 6 are all The inclined setting makes it convenient to blow on the upper and lower surfaces of the passing battery cells, thereby neutralizing the static electricity thereon and blowing away impurities, thereby improving the cleanliness of the battery cells. The main motor 5 and the winding motor 9 are fixedly connected to the left frame 1, and the output end of the main motor 5 is fixedly connected to the fixed shaft 4, and the output end of the winding motor 9 is fixedly connected to the winding roller 8. When the main motor 5 is started, the fixed shaft 4 can be rotated, thereby automatically cold pressing the battery cells. When the winding motor 9 is started, the cold pressed battery cells can be wound up by the winding roller 8.

[0026] Working principle: When cold pressing is performed, the dried battery cell is passed between the adjusting shaft 307 and the fixed shaft 4, and one end is fixed on the winding roller 8, and then the main motor 5 and the winding motor 9 are started. Under the action of the main motor 5 and the winding motor 9, the battery cell is cold pressed into the required thickness by the adjusting shaft 307 and the fixed shaft 4. When it is necessary to cold press battery cells of different thicknesses, the upper fastening ring 303, the middle fastening ring 304 and the bottom fastening ring 305 are loosened, and the adjusting shaft 307 is moved to a suitable height through the infrared ranging sensor 306, and then the upper fastening ring 303, the middle fastening ring 304 and the bottom fastening ring 305 are locked, and then cold pressing is performed. During the cold pressing process, the ion wind rod 6 blows on the upper and lower surfaces of the battery cell to neutralize the static electricity thereon and blow away impurities, thereby improving the cleanliness of the battery cell.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Automatic cold pressing device for battery cells, including: A rack (1) for cold pressing of battery cells, characterized in that the racks (1) are provided with two in number and are symmetrically arranged on the left and right, a slide groove (2) is provided on the rack (1), an adjustment assembly (3) is provided between the two racks (1), the adjustment assembly (3) comprises a slider (301), an adjustment rod (302), an upper fastening ring (303), a middle fastening ring (304), a bottom fastening ring (305), an infrared distance measuring sensor (306) and an adjustment shaft (307), the slider (301) is slidably connected with the adjustment rod (302) penetrating the upper and lower parts, and the upper fastening ring (303) is threadedly connected to the circumferential surface of the adjustment rod (302). ), a middle fastening ring (304) and a bottom fastening ring (305); an infrared distance sensor (306) is fixedly connected to the bottom of the slider (301); two sliders (301), an adjusting rod (302) and an infrared distance sensor (306) are each provided and are symmetrically arranged on the left and right; an adjusting shaft (307) is rotatably connected between the two sliders (301); a fixed shaft (4), a guide roller (7) and a winding roller (8) are rotatably connected between the two frames (1); an ion wind rod (6) is fixedly connected between the two frames (1); and a main motor (5) and a winding motor (9) are fixedly connected to the left frame (1).

2. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The number of the ion wind rods (6) is multiple and they are symmetrically distributed at the front and rear ends of the fixed shaft (4), and the air outlets of the ion wind rods (6) are all inclined.

3. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The number of the guide rollers (7) is two and they are symmetrically arranged front to back; the ion wind rod (6), the fixed shaft (4) and the adjustment shaft (307) are all located between the two guide rollers (7).

4. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The output end of the main motor (5) is fixedly connected to the fixed shaft (4), and the fixed shaft (4) is located below the adjustment shaft (307).

5. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The winding roller (8) is located behind the guide roller (7), and the output end of the winding motor (9) is fixedly connected to the winding roller (8).

6. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The upper fastening ring (303), the middle fastening ring (304) and the bottom fastening ring (305) are provided in a plurality, the upper fastening ring (303) is located above the frame (1), and the middle fastening ring (304) and the bottom fastening ring (305) are both located inside the slide groove (2) and at the upper and lower sides of the slide block (301).

7. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The infrared distance measuring sensor (306) is electrically connected to an external display device.

8. The automatic cold pressing device for battery cells according to claim 1, characterized in that: The top of the adjusting rod (302) passes through the frame (1), and the bottom of the adjusting rod (302) is rotatably connected to the frame (1).

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