A transfer coater for continuously variable two-sided thinning

Abstract

A transfer type coating continuous variable two edge thinning device belongs to lithium / sodium ion battery technical field. It is used for solving the problem that the existing transfer coating process is easy to make the pole piece coating two edges thick and easy to drum edge. It includes comma knife, two T-shaped blocks, two blades and two blade chamfer adjusting devices; T-shaped groove is arranged in the plane below the comma knife for assembling two T-shaped blocks, two blades are respectively assembled on two T-shaped blocks, mounting groove is arranged in the plane above the comma knife for assembling two blade chamfer adjusting devices, and each blade chamfer adjusting device is connected with the corresponding blade and is used for adjusting the blade chamfer angle. The utility model discloses the adjustable controllable of scraper through optimizing coating scraper, adopting semicircle turbine structure and worm drive, realizes the method of two edge thinning, can realize the advantages, such as continuous control adjustment, convenient and fast, without stopping two edge thinning.

Description

Technical Field

[0001] This invention belongs to the field of lithium / sodium ion battery technology, specifically relating to a transfer coating continuously variable thinning device. Background Technology

[0002] In the existing coating process of lithium / sodium ion batteries, the traditional transfer coating process uses a doctor blade to scrape the slurry to a certain thickness before transfer coating. This method can only coat the electrode into a plane of uniform thickness or a plane that is thicker on both sides and normal in the middle. If the two sides are thicker, it will cause the edge bulging problem. Traditional coating cannot fundamentally solve the problem of the two sides being thicker, nor can it change the shape of the doctor blade to make the two sides thinner, which affects the coating speed, reduces productivity, leads to more scrap, and increases the cost of enterprises. Utility Model Content

[0003] In order to solve the problem that the existing transfer coating process easily results in the electrode coating being too thick on both sides and prone to bulging, this utility model provides a transfer coating continuously variable two-sided thinning device to achieve thinning on both sides.

[0004] The technical solution adopted by this utility model is:

[0005] A transfer-type coating continuously variable two-sided thinning device includes a comma blade, two T-blocks, two blades, and two blade chamfering adjustment devices. A T-slot is formed on the lower plane of the comma blade for assembling the two T-blocks, and the two blades are respectively assembled on the two T-blocks. An mounting slot is formed on the upper plane of the comma blade for assembling the two blade chamfering adjustment devices. Each blade chamfering adjustment device is connected to the corresponding blade and is used to adjust the blade chamfering angle.

[0006] Compared with the prior art, the present invention has the following advantages:

[0007] This invention improves the problems of excessive thickness and bulging edges during coating by adopting a continuously variable chamfering device. It reduces the electrode scrap rate, increases coating speed and subsequent rolling speed, and eliminates bulging edges after thinning.

[0008] This invention optimizes the coating blade, adopts a semi-circular turbine structure and worm gear transmission, making the blade adjustable and controllable, and achieving a method of thinning both sides. It has the advantages of continuous control and adjustment without stopping the machine, and can be adjusted quickly and easily. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is the front view of this utility model;

[0011] Figure 3 This is a schematic diagram of the comma knife structure of this utility model;

[0012] Figure 4 This is a cross-sectional view of the comma cutter of this utility model;

[0013] Figure 5 This is a schematic diagram of the blade chamfering adjustment device of this utility model;

[0014] Figure 6 This is a front view of the blade chamfering adjustment device of this utility model;

[0015] Figure 7 This is a schematic diagram of the structure of T-block one and T-block two of this utility model;

[0016] The components are as follows: 1. Comma blade; 2. T-block one; 3. Blade; 4. Blade chamfering adjustment device; 5. Bushing; 6. Bolt two; 101. T-slot; 102. Mounting slot; 1021. T-structure; 1022. Through slot structure; 301. Turbine part; 401. Handwheel; 402. Bolt one; 403. Cover plate; 404. Thrust bearing one; 405. Worm; 406. Thrust bearing two; 407. T-block two; 4051. Cap. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model will be provided below with reference to the accompanying drawings.

[0018] like Figures 1-7 As shown, this utility model provides a transfer coating continuously variable two-sided thinning device, including a comma blade 1, two T-blocks 2, two blades 3, and two blade chamfering adjustment devices 4; a T-slot 101 is formed on the lower plane of the comma blade 1 for assembling the two T-blocks 2, and the two blades 3 are respectively assembled on the two T-blocks 2; an mounting slot 102 is formed on the upper plane of the comma blade 1 for assembling the two blade chamfering adjustment devices 4, and each blade chamfering adjustment device 4 is connected to the corresponding blade 3 and used to adjust the chamfering angle of the blade 3.

[0019] like Figures 4-6As shown, each of the blade chamfering adjustment devices 4 includes a cover plate 403, a thrust bearing 404, a thrust bearing 406, a worm gear 405, two bolts 402, and two T-blocks 407. The lower end of the cap 4051 of the worm gear 405 is rotatably connected to the lap surface of the mounting groove 102 through the thrust bearing 406, and the upper end of the cap 4051 of the worm gear 405 is rotatably connected to the cover plate 403 through the thrust bearing 404. The cover plate 403 is fitted onto the worm gear 405 through the central hole, and both ends of the cover plate 403 are connected to a T-block 407 through bolts 402. The two T-blocks 407 are disposed at both ends of the worm gear 405 and assembled in the mounting groove 102.

[0020] The worm gear 405 is positioned by T-blocks 407 on both sides.

[0021] The distance between the two worm gears 405 is adjustable.

[0022] The cover plate 403 serves to press down the thrust bearing 404 and the thrust bearing 406 and to limit the upward jumping and left and right swinging of the worm 405. The cap 4051 of the worm 405 serves to limit the worm 405 from moving downward.

[0023] like Figure 4 As shown, the upper end of the mounting groove 102 adopts a T-shaped structure 1021 for assembling the T-shaped block 407, and the lower end of the mounting groove 102 adopts a through groove structure 1022 for assembling the worm gear 405.

[0024] like Figure 6 As shown, one end of each blade 3 connected to the blade chamfering adjustment device 4 is set as an arc surface, and a half-circle tooth matching the worm 405 is set on the arc surface to form a turbine part 301. The blade 3 is connected to the worm 405 through the turbine part 301. A through hole is opened at the center of the arc of the blade 3, and it is rotatably mounted on the corresponding T-block 2 through the through hole and the bolt 6.

[0025] Both T-block 12 and T-block 2407 have internal threaded holes.

[0026] Each of the blades 3 has a bushing 5 inside its through hole.

[0027] The upper end of the worm gear 405 extends through the mounting groove 102 and is fitted with a handwheel 401.

[0028] This invention adds a continuously variable blade chamfer adjustment device 4 to a traditional coating blade, which can adjust the chamfer according to the actual situation during the coating process and change the chamfer of the edge of the slurry surface in real time.

[0029] By changing the rotation angle of the blade 3 on the comma knife 1, the chamfer on both sides of the slurry is made to achieve the purpose of thinning on both sides. Through practice, this method is effective and controllable, which brings convenience to the coating process, thereby improving coating speed and production efficiency, and has good economic efficiency.

[0030] The thinning method of this thinning device includes the following steps:

[0031] Step 1: First, position and install the blade chamfering adjustment device 4 above the comma blade 1 according to the required coating width.

[0032] Step 2: After completing Step 1, start installing bushing 5 and blade 3. At this time, the blade 3 and the lower cutting edge of comma blade 1 are parallel. Install the T-blocks 2 on the lower left and right sides into the T-groove 101 and adjust them to the required coating width.

[0033] Step 3: After completing Step 1 and Step 2, add slurry to the middle of the transfer baffle for pre-coating. After coating in the oven, measure the thickness on both sides and the middle, and calculate the difference.

[0034] Step 4: If there is a difference, rotate the worm gear 405 to rotate the blade 3 to a certain angle and record the angle difference before and after coating. Then measure the thickness difference between the two sides and the middle again. If the thinning exceeds the process value range, rotate the worm gear 405 in the opposite direction to rotate the blade 3 upward to reduce the thinning amount.

[0035] Step 5: Record the relationship between the thinning amount and the angle, obtaining the ratio of angle to thinning amount. This will help maintain a constant transmission ratio and allow for quick adjustment of the thinning amount based on the angle in the next operation.

[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A transfer-type coating continuously variable two-sided thinning device, characterized in that: It includes a comma blade (1), two T-blocks (2), two blades (3), and two blade chamfering adjustment devices (4); a T-slot (101) is opened on the lower plane of the comma blade (1) for assembling the two T-blocks (2), and the two blades (3) are respectively assembled on the two T-blocks (2). An installation slot (102) is opened on the upper plane of the comma blade (1) for assembling the two blade chamfering adjustment devices (4). Each blade chamfering adjustment device (4) is connected to the corresponding blade (3) and is used to adjust the chamfering angle of the blade (3).

2. The transfer coating continuous variable-sided thinning device according to claim 1, characterized in that: Each of the blade chamfering adjustment devices (4) includes a cover plate (403), a thrust bearing one (404), a thrust bearing two (406), a worm (405), two bolts one (402), and two T-blocks two (407). The lower end of the cap (4051) of the worm (405) is rotatably connected to the lap surface of the mounting groove (102) through the thrust bearing two (406), and the upper end of the cap (4051) of the worm (405) is rotatably connected to the cover plate (403) through the thrust bearing one (404). The cover plate (403) is fitted onto the worm (405) through the center hole, and both ends of the cover plate (403) are connected to a T-block two (407) through bolts one (402). The two T-blocks two (407) are set at both ends of the worm (405) and assembled in the mounting groove (102).

3. The transfer coating continuous variable-sided thinning device according to claim 2, characterized in that: The upper end of the mounting groove (102) adopts a T-shaped structure (1021) for assembling T-shaped block two (407), and the lower end of the mounting groove (102) adopts a through groove structure (1022) for assembling worm gear (405).

4. The transfer coating continuous variable-sided thinning device according to claim 2, characterized in that: Each blade (3) is connected to the blade chamfering adjustment device (4) at one end, which is set as an arc surface. A semi-circular tooth matching the worm (405) is set on the arc surface to form a turbine part (301). The blade (3) is connected to the worm (405) through the turbine part (301). A through hole is opened at the center of the arc of the blade (3). The blade (3) is rotatably mounted on the corresponding T-block (2) through the through hole and the bolt (6).

5. The transfer coating continuous variable-sided thinning device according to claim 4, characterized in that: Each of the blades (3) has a bushing (5) inside its through hole.

6. The transfer coating continuously variable two-sided thinning device according to claim 2, characterized in that: The upper end of the worm (405) extends through the mounting groove (102) and is fitted with a handwheel (401).

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