Device for removing wrinkles in tab area of pole piece

Abstract

The utility model discloses a pole piece tab area wrinkle removing device, which relates to the technical field of wrinkle removing, and comprises a passing roller, a pole piece, a wrinkle removing roller, a mounting rod and wrinkles, the passing roller is commonly used for guiding the pole piece to turn in pole piece production equipment, and the pole piece is coated on the outer surface of the passing roller to turn and move forwards. The pole piece is a thin strip type material formed by coating the surface of a base material with a coating, the area, coated with the coating, of the pole piece base material is called as a coating area, the area, without the coating, of the pole piece base material is called as a pole lug area, and the wrinkle removing roller is connected to the position, about to enter and wrap the passing roller, of the pole piece through a mounting rod. The wrinkle removing device for the tab area of the pole piece disclosed by the utility model is wide in equipment adaptability and high in free adjustment degree, and can be adjusted by changing different postures according to actual conditions; the wrinkle removing effect of the equipment is obvious, and wrinkles can disappear within a short time after installation; and the equipment adopts rolling friction, so that the influence on battery performance caused by powder falling due to friction is avoided, and the overall safety is high.

Description

Technical Field

[0001] This utility model relates to the field of wrinkle removal technology, and in particular to a wrinkle removal device for the electrode tab area. Background Technology

[0002] During the production of lithium battery electrode sheets, wrinkles are prone to occur in the tab area. If unformed wrinkles are squeezed into fixed wrinkles when entering the roll, it will affect the subsequent production processes of the electrode sheet, resulting in defective products. Severe wrinkling can render the electrode sheet completely unusable, thus affecting production efficiency. Furthermore, during the winding process, a series of tensioning and turning operations are required, and the wrinkled parts are highly susceptible to tearing and tape breakage, leading to equipment downtime, material waste, and other losses.

[0003] The existing technology has the following problems:

[0004] Existing devices are not effective at removing wrinkles generated during the coating process. They are also complex, costly, difficult to adjust, have low reliability, and suffer from problems such as sliding friction. Utility Model Content

[0005] This invention provides a device for removing wrinkles in the electrode tab area of ​​an electrode sheet, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A wrinkle removal device for the tab area of ​​an electrode sheet includes a guide roller, an electrode sheet, a wrinkle removal roller, a mounting rod, and a wrinkle removal mechanism. The guide roller is commonly used in electrode sheet production equipment to guide the electrode sheet to a different direction. The electrode sheet is wrapped around the outer surface of the guide roller and moves forward. The electrode sheet is a thin strip of material with a coating on its substrate surface. The area on the electrode substrate with the coating is called the coating area, and the area on the electrode substrate without the coating is called the tab area. The wrinkle removal roller is connected to and positioned on the side of the electrode sheet that is about to enter the guide roller via the mounting rod. The de-wrinkling roller presses onto the tab area of ​​the electrode sheet and the coating area next to it, and makes the wrap angle of the tab area on the roller slightly larger than the wrap angle of the coating area. That is, the tab area plays a certain lateral extension role. When the tab area is wrapped onto the roller, it will eliminate wrinkles. The front and rear ends of the roller are rotatably connected to shafts. Two adjusting support mechanisms are fixedly installed on the outer wall of the mounting rod. The end of the adjusting support mechanism away from the mounting rod is rotatably connected to the inner wall of the de-wrinkling roller. There are wrinkles on the tab area, and the wrinkles are not fixedly formed.

[0008] Preferably, connecting blocks are fixedly installed on the outer walls of both shafts, and the other ends of the two connecting blocks are fixedly installed to the two ends of the outer walls of the mounting rods.

[0009] Preferably, the de-wrinkling roller is made of a highly flexible elastomer.

[0010] Preferably, the adjusting support mechanism includes a locking block, a ball sleeve rod one, and a shaft rod. The outer wall of the shaft rod is rotatably connected to the inner wall of the wrinkle removal roller. The right side of the locking block is fixedly installed on the outer wall of the mounting rod. The end of the ball sleeve rod one away from the locking block is rotatably connected to a connecting screw rod, and one end of the connecting screw rod is threadedly connected to a ball sleeve rod two.

[0011] Preferably, a ball head rod is fixedly installed on the top side of the locking block away from the mounting rod, the outer wall of the ball head rod is movably connected to the end of the ball sleeve rod one away from the connecting screw, and the ball head locking block is movably connected to the end of the ball sleeve rod two away from the connecting screw.

[0012] Preferably, the ball head locking block has a slot at the end away from the ball sleeve rod, the inner wall of the slot is inserted into the outer wall of the shaft at the end away from the wrinkle removal roller, and the end of the ball head locking block near the shaft is movably connected to an adjusting screw that passes through the slot.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a device for removing wrinkles in the electrode tab area, which does not require the addition of complex independent equipment, but can be modified from the existing equipment, saving space and cost.

[0015] 2. This utility model provides a device for removing wrinkles in the electrode tab area, which has high equipment stability and low maintenance rate after installation.

[0016] 3. This utility model provides a wrinkle removal device for the electrode tab area, which has low equipment cost, simple adjustment, flexible installation, small space occupation, and can be installed at the roller passage in various scenarios.

[0017] 4. This utility model provides a device for removing wrinkles in the electrode tab area. The device has wide adaptability and high degree of freedom of adjustment, and can be adjusted by changing different postures according to the actual situation.

[0018] 5. This utility model provides a wrinkle removal device for the electrode tab area. The device has a significant wrinkle removal effect, and the wrinkles can disappear in a short time after installation.

[0019] 6. This utility model provides a device for removing wrinkles in the electrode tab area. The device uses rolling friction to avoid friction-induced powder shedding, which would affect battery performance and ensures high overall safety. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the transmission shape structure of the coating area of ​​this utility model;

[0022] Figure 3 This is a schematic diagram of the overall wrinkle removal device of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the adjustment support mechanism of this utility model.

[0024] In the diagram: 1. Electrode; 11. Coating area; 12. Wrinkle; 13. Electrode lug area; 2. Wrinkle removal roller; 3. Mounting rod; 4. Passing roller; 5. Shaft; 6. Adjusting support mechanism; 61. Locking block; 62. Ball head rod; 63. Ball sleeve rod one; 64. Connecting screw; 65. Ball sleeve rod two; 66. Ball head locking block; 67. Shaft; 68. Adjusting screw; 7. Connecting block. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figures 1-4 As shown, an electrode tab removal device includes a guide roller 4, an electrode 1, a de-wrinkling roller 2, a mounting rod 3, and a folding area 12. The guide roller 4 is commonly used in electrode 1 production equipment to guide the electrode to turn. The electrode 1 is wrapped around the outer surface of the guide roller 4 and turns and moves forward. The electrode 1 is a thin strip material with a coating on the surface of the substrate. The area on the substrate of the electrode 1 with the coating is called the coating area 11, and the area on the substrate of the electrode 1 without the coating is called the tab area 13. The de-wrinkling roller 2 is connected to the mounting rod 3 and is positioned on the side of the electrode 1 that is about to enter the guide roller 4. 2 is pressed onto the tab area 13 of the electrode sheet 1 and the coating area 11 next to it, and the wrap angle of the tab area 13 on the roller 4 is slightly larger than the wrap angle of the coating area 11. That is, at this time, the tab area 13 plays a certain lateral extension role. When the tab area 13 is covered onto the roller 4, it will eliminate the wrinkles 12. The front and rear ends of the roller 4 are rotatably connected to the shaft 5. Two adjusting support mechanisms 6 are fixedly installed on the outer wall of the mounting rod 3. The end of the adjusting support mechanism 6 away from the mounting rod 3 is rotatably connected to the inner wall of the wrinkle removal roller 2. There are wrinkles 12 on the tab area 13 and the wrinkles 12 are not fixedly formed.

[0027] The electrode 1 is the object of the invention, and it consists of a coating area 11 and a tab area 13.

[0028] This device is mainly designed to prevent wrinkles 12 from forming in the coating area 11 and the tab area 13 during the conveyor belt process. The wrinkle removal device uses a wrinkle removal roller 2 to press the area of ​​the roller 4 and the coating area 11 where wrinkles 12 are about to form, so that the pressed area is evenly stretched out, thereby preventing the appearance of wrinkles 12.

[0029] like Figures 1-3As shown, connecting blocks 7 are fixedly installed on the outer walls of both shafts 5, and the other ends of the two connecting blocks 7 are fixedly installed on the two ends of the outer wall of the mounting rod 3, except that the material of the pleating roller 2 is a high-soft elastic body.

[0030] The removal of wrinkles is achieved through the cooperation of three components: the wrinkle removal roller 2, the coating area 11, and the guide roller 4. The highly flexible elastomer is pressed onto the guide roller to flatten the pre-wrinkled area in advance, preventing the coating area from forming dead folds after passing through the roller, which would be irreversible.

[0031] like Figure 3 and Figure 4 As shown, the adjusting support mechanism 6 includes a locking block 61, a ball sleeve rod 63, and a shaft 67. The outer wall of the shaft 67 is rotatably connected to the inner wall of the wrinkle removal roller 2. The right side of the locking block 61 is fixedly installed on the outer wall of the mounting rod 3. The end of the ball sleeve rod 63 away from the locking block 61 is rotatably connected to a connecting screw 64. One end of the connecting screw 64 is threadedly connected to a ball sleeve rod 65. A ball head rod 62 is fixedly installed on the top side of the locking block 61 away from the mounting rod 3. The outer wall of the ball head rod 62 is movably connected to the end of the ball sleeve rod 63 away from the connecting screw 64. The end of the ball sleeve rod 65 away from the connecting screw 64 is movably connected to a ball head locking block 66.

[0032] The locking block 61 has mounting threaded holes of different sizes at corresponding positions for installing different models of adjustment support mechanisms 6. The arm extension of the adjustment support mechanism 6 can be selected according to the actual installation space. At the same time, it can also freely change its shape and angle as needed to flatten the wrinkled area.

[0033] like Figure 3 and Figure 4 As shown, the ball head locking block 66 has a slot at the end away from the ball sleeve rod 65. The inner wall of the slot is inserted into the outer wall of the shaft rod 67 at the end away from the wrinkle removal roller 2. The ball head locking block 66 is movably connected to the end near the shaft rod 67 with an adjusting screw 68 that passes through the slot.

[0034] By rotating the adjusting screw 68, the gap of the slot on the ball head locking block 66 is adjusted so that the inner wall of the slot locks the outer wall of the shaft 67, thereby achieving the purpose of installing the shaft 67.

[0035] The working principle of this utility model is as follows: The connecting blocks 7 are generally used in pairs and are fixed on the outer walls of the shafts 5 at both ends of the wrinkling roller 4. The two connecting blocks 7 are connected by the mounting rod 3. The locking block 61 is installed on the mounting rod 3 and locked with screws. It can be adjusted left and right according to actual needs to adapt to wrinkling areas with different spacing and positions. The locking block 61 has mounting threaded holes of different sizes at corresponding positions for installing different models of adjustment support mechanisms 6. The arm extension of the adjustment support mechanism 6 can be selected according to the actual installation space. At the same time, it can also freely change its shape and angle as needed to flatten the wrinkled area. The coating area 11 is clamped by the roller 4 and the wrinkle removal roller 2 to form a constant pressure to remove wrinkles. The magnitude and position of the pressure are adjusted by the adjustment support mechanism 6 of the wrinkle removal device. The uniform distribution of pressure is achieved by the elastic deformation of the elastic body.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crease removing device for tab area of electrode sheet comprising a passing roller (4), an electrode sheet (1), a crease removing roller (2), a mounting bar (3) and a crease (12), characterized by: The over roller (4) is used to guide the pole piece (1) to turn, the pole piece (1) is coated on the outer surface of the over roller (4) and turns and moves forward, the pole piece (1) is a thin strip material coated with a coating on the surface of the substrate, the area coated with the coating on the substrate of the pole piece (1) is called the coating area (11), the area without the coating on the substrate of the pole piece (1) is called the tab area (13), the wrinkle removing roller (2) is arranged at the position where the pole piece (1) is about to enter the side of the over roller (4) by the connecting rod (3), the wrinkle removing roller (2) is pressed on the tab area (13) and the coating area (11) beside the tab area (13), and the wrapping angle of the tab area (13) on the over roller (4) is greater than that of the coating area (11), that is, the tab area (13) plays a certain transverse extension role at this time, the tab area (13) can eliminate the wrinkles (12) when being coated on the over roller (4), the front and rear ends of the over roller (4) are rotatably connected with the shaft rods (5), the outer wall of the connecting rod (3) is fixedly connected with two adjusting supporting mechanisms (6), one end of the adjusting supporting mechanism (6) away from the connecting rod (3) is rotatably connected with the inner wall of the wrinkle removing roller (2), and the tab area (13) has the wrinkles (12) which are not fixed and formed.

2. The device for removing wrinkles in tab area of pole piece according to claim 1, characterized in that: The outer wall of each of the two shaft rods (5) is fixedly connected with a connecting block (7), and the other end of each of the two connecting blocks (7) is fixedly connected with the outer wall of the connecting rod (3).

3. The device for removing wrinkles in tab area of pole piece according to claim 1, characterized in that: The material of the wrinkle removing roller (2) is a high soft elastomer.

4. The device for removing wrinkles in tab area of pole piece according to claim 1, characterized in that: The adjusting supporting mechanism (6) comprises a lock block (61), a ball sleeve rod (63) and a shaft rod (67), the outer wall of the shaft rod (67) is rotatably connected with the inner wall of the wrinkle removing roller (2), the right part of the lock block (61) is fixedly connected with the outer wall of the connecting rod (3), one end of the ball sleeve rod (63) away from the lock block (61) is rotatably connected with a connecting screw rod (64), and one end of the connecting screw rod (64) is threadedly connected with a ball sleeve rod (65).

5. The device for removing wrinkles in tab area of pole piece according to claim 4, characterized in that: The top of the lock block (61) away from the connecting rod (3) is fixedly connected with a ball head rod (62), the outer wall of the ball head rod (62) is movably connected with one end of the ball sleeve rod (63) away from the connecting screw rod (64), and one end of the ball sleeve rod (65) away from the connecting screw rod (64) is movably connected with a ball head lock block (66).

6. The device for removing wrinkles in tab area of pole piece according to claim 5, characterized in that: The end of the ball head lock block (66) away from the ball sleeve rod (65) is provided with a clamping groove, the inner wall of the clamping groove is inserted into one end of the shaft rod (67) away from the wrinkle removing roller (2), and the end of the ball head lock block (66) close to the shaft rod (67) is movably connected with an adjusting screw rod (68) penetrating through the clamping groove.

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