Electrode flattening machine

Abstract

The utility model relates to battery manufacturing technical field discloses an electrode flattening machine, include: main part, install the groove, open in the main part before and after two sides side wall, apron, install in the install groove top, guide material board, set up in the install groove top and extend to the main part before and after two sides outside, be the feed and discharge port of electrode foil and composite coating, pneumatic cylinder, be equipped with not less than two, fix in the main part top and output end extend to the main part inside, in the utility model, through torsional spring drive the rotating lever makes the guide roller to electrode foil edge position limiting and carding, spring simultaneously according to electrode foil and composite coating's thickness adjustment guide roller height, and guide roller is located in the opening outside and guides electrode foil to move forward, and utilize guide material board 13 both sides physical boundary to the material constraint, ensure that material is always in the effective action area of compression roller, avoid electrode foil bending.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an electrode flattening machine. Background Technology

[0002] An electrode flattening machine is a device used to flatten electrode materials. By applying pressure, it transforms loose electrode materials into denser ones, meeting the performance and appearance requirements of different applications. Common types include roller pressing, hot pressing, and extrusion. Roller pressing utilizes two high-hardness pressure rollers that rotate synchronously in opposite directions: a fixed roller and a movable roller. The movable roller follows the fixed roller, rotating synchronously. By adjusting the gap between the two rollers, pressure is applied to the fed electrode material, transforming it from a loose to a dense state, achieving flattening and increasing density.

[0003] In existing technologies, the electrode foil and composite coating need to move from the feed inlet to between the upper and lower pressure rollers. Therefore, they must pass through the gap between the feed inlet and the bottom pressure roller. The electrode foil is typically 5-80 micrometers thick, and the composite coating is usually solid or semi-solid. When the electrode foil is combined with a semi-solid coating, the electrode foil is generally at the bottom. As it passes through the gap, it bends downwards under gravity. When it enters the upper and lower pressure rollers, the bent electrode foil contacts and folds against the rollers, then, driven by the rollers, comes into close contact with the composite coating, forming a composite coating. However, because the thickness and composition ratio of the composite coating at the bend in the electrode foil differ from other areas, the composite coating at this point does not meet the usage specifications and needs to be removed, resulting in a waste of raw materials.

[0004] Therefore, this application provides an electrode flattening machine to meet the requirements. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an electrode flattening machine to solve the problem that when the electrode foil enters the gap between the feed inlet and the pressure roller, the electrode foil bends, affecting the quality of the finished product and causing waste of raw materials.

[0006] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0007] An electrode flattening machine, comprising:

[0008] main body;

[0009] Mounting slots are provided on the front and rear side walls of the main body;

[0010] A cover plate, installed on top of the mounting groove, is used to protect the internal components of the main body;

[0011] A guide plate, located at the top of the mounting groove and extending to the front and rear sides of the main body, serves as the inlet and outlet for electrode foils and composite coatings;

[0012] The cylinder is provided in no fewer than two parts, which are fixed to the top of the main body and have their output ends extending into the interior of the main body;

[0013] A connecting bracket is fixed to the bottom of the output end of the cylinder located inside the main body, and moves up and down with the output end of the cylinder.

[0014] The upper pressure roller is rotatably connected to the inner side of the connecting frame and is located above the guide plate;

[0015] The lower pressure roller is rotatably connected to the inner wall of the main body and located at the bottom of the guide plate. It works in conjunction with the upper pressure roller to compact the electrode foil and composite coating.

[0016] Preferably, a base is fixedly connected to the bottom of the main body, and a control terminal is provided on the side wall of the main body, the control terminal being used to control the operation of the tablet press.

[0017] Preferably, the guide plate has an opening in the middle, and the top of the lower pressure roller is located inside the opening, thereby reducing the distance between the guide plate and the lower pressure roller.

[0018] Preferably, a first motor for driving the upper pressure roller to rotate is fixed to the side wall of the upper pressure roller, and a second motor for driving the lower pressure roller to rotate is fixed to the inner wall of the main body.

[0019] Preferably, each of the top edges of the guide plate is fixedly connected to a spring, and the end of the spring away from the guide plate is fixedly connected to a bracket. A rotating rod is provided between the two brackets on the left and right sides of the guide plate. The two ends of the rotating rod extend into the two brackets on the same side and are rotatably connected to them. A torsion spring is provided on the outer side of each end of the rotating rod. The torsion spring is located in the bracket and drives the rotating rod to rotate towards the inside of the guide plate. Several connecting rods are fixedly connected to the outer side of each of the two rotating rods. The side walls of the several connecting rods are rotatably connected to guide rollers pointing towards the inside of the guide plate.

[0020] Preferably, the width of the guide plate is greater than the length of the upper pressure roller and the lower pressure roller.

[0021] Preferably, the guide roller is located outside the opening.

[0022] This invention provides an electrode flattening machine. Compared with the prior art, it has the following advantages:

[0023] 1. By opening an opening in the middle of the guide plate, the top of the lower pressure roller is located inside the opening, reducing the distance between the guide plate and the lower pressure roller. This prevents the electrode foil from bending too much due to gravity before entering the pressure roller, ensuring that the material is evenly compacted between the pressure rollers, improving the quality of the finished product, and reducing the waste of raw materials caused by the composite coating not meeting the specifications due to bending.

[0024] 2. The torsion spring drives the rotating rod to limit and comb the edge of the electrode foil. At the same time, the spring adjusts the height of the guide roller according to the thickness of the electrode foil and the composite coating. The guide roller is located outside the opening to guide the electrode foil to move forward. The physical boundaries on both sides of the guide plate 13 are used to constrain the material to ensure that the material is always within the effective working area of ​​the pressure roller and to prevent the electrode foil from bending. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0027] Figure 3 This is a schematic diagram of the overall structure of the guide plate of this utility model.

[0028] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0029] Figure 5 This is a schematic diagram of the guide plate, bracket, and spring connection structure of this utility model.

[0030] Figure 6 This is a schematic diagram of the connection structure of the connecting rod, guide roller and rotating rod of this utility model.

[0031] Figure 7 This is a schematic diagram of the connection structure of the bracket, spring, rotating rod and torsion spring of this utility model.

[0032] The attached figures are labeled as follows:

[0033] 10. Main body; 11. Mounting groove; 12. Cover plate; 13. Guide plate; 131. Opening; 14. Cylinder; 15. Connecting frame; 16. Upper pressure roller; 17. Lower pressure roller; 18. Base; 19. Control end; 20. Bracket; 21. Spring; 22. Connecting rod; 23. Guide roller; 24. Rotating rod; 25. Torsion spring. Detailed Implementation

[0034] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0035] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0036] Reference Figures 1-3 An electrode flattening machine, comprising:

[0037] Main body 10;

[0038] Mounting slots 11 are provided on the front and rear side walls of the main body 10;

[0039] Cover plate 12 is installed on top of mounting groove 11 to protect internal components of main body 10;

[0040] The guide plate 13 is located at the top of the mounting groove 11 and extends to the front and rear sides of the main body 10, serving as the inlet and outlet for the electrode foil and composite coating.

[0041] Cylinder 14, having no fewer than two, is fixed to the top of the main body 10 and its output end extends into the interior of the main body 10;

[0042] The connecting bracket 15 is fixed to the bottom of the output end of the cylinder 14 located inside the main body 10, and moves up and down with the output end of the cylinder 14;

[0043] The upper pressure roller 16 is rotatably connected to the inner side of the connecting frame 15 and is located above the guide plate 13;

[0044] The lower pressure roller 17 is rotatably connected to the inner wall of the main body 10 and is located at the bottom of the guide plate 13. It works in conjunction with the upper pressure roller 16 to compact the electrode foil and composite coating.

[0045] Furthermore, such as Figures 1 to 3 As shown, the distance between the upper pressure roller 16 and the lower pressure roller 17 is adjusted by the telescopic movement of the cylinder 14. The opposing rotation of the upper pressure roller 16 and the lower pressure roller 17 generates friction and pressure, thereby compacting the electrode foil and composite coating. The guide plate 13 serves as the feeding and discharging channel, providing a path for material transport.

[0046] The bottom of the main body 10 is fixedly connected to the base 18, and the side wall of the main body 10 is provided with a control terminal 19, which is used to control the operation of the tablet press.

[0047] Furthermore, such as Figure 1 and Figure 2 As shown, the base 18 provides mechanical support for the main body 10 and its components, and the control terminal 19 connects to the power components through a circuit or control system to realize the automated control of the equipment.

[0048] An opening 131 is provided in the middle of the guide plate 13, and the top of the lower pressure roller 17 is located inside the opening 131, reducing the distance between the guide plate 13 and the lower pressure roller 17.

[0049] Furthermore, such as Figures 2 to 3 As shown, this is to prevent the electrode foil from bending too much due to gravity before entering the pressure roller, which would result in excessive bending.

[0050] A first motor for driving the upper pressure roller 16 to rotate is fixed on the side wall of the upper pressure roller 16, and a second motor for driving the lower pressure roller 17 to rotate is fixed on the inner wall of the main body 10.

[0051] Furthermore, such as Figure 2 As shown, the first motor and the second motor transmit power to the upper pressure roller 16 and the lower pressure roller 17 through a transmission structure such as gears and belts, causing the upper pressure roller 16 and the lower pressure roller 17 to rotate in opposite directions and generate continuous pressure.

[0052] Working process and principle: During operation, the electrode foil and composite coating enter through the feed inlet guide plate 13. The cylinder 14 adjusts the distance between the upper pressure roller 16 and the lower pressure roller 17 through telescopic movement. The first motor and the second motor drive the upper pressure roller 16 and the lower pressure roller 17 to rotate in opposite directions, using friction and pressure to compact the material. The compacted material is discharged from the outlet of the guide plate 13. The opening 131 in the middle of the guide plate 13 places the top of the lower pressure roller 17 within it, reducing the distance between the guide plate 13 and the lower pressure roller 17. This prevents the electrode foil from bending excessively due to gravity before entering the pressure rollers, ensuring that the material is uniformly compacted between the pressure rollers and improving the quality of the finished product.

[0053] Example 2: Refer to Figures 2-7 Springs 21 are fixedly connected to the top of the corners of the guide plate 13. A bracket 20 is fixedly connected to the end of the spring 21 away from the guide plate 13. A rotating rod 24 is set between the two brackets 20 on the left and right sides of the guide plate 13. The two ends of the rotating rod 24 extend into the two brackets 20 on the same side and are rotatably connected to them. Torsion springs 25 are set on the outer side of both ends of the rotating rod 24. The torsion springs 25 are located in the brackets 20 and drive the rotating rod 24 to rotate to the inside of the guide plate 13. Several connecting rods 22 are fixedly connected to the outer side of the two rotating rods 24. Guide rollers 23 pointing to the inside of the guide plate 13 are rotatably connected to the side walls of the several connecting rods 22.

[0054] Furthermore, such as Figures 2 to 7 As shown, the torsion spring 25 uses its own elastic force to drive the connecting rod 22 to rotate, so that the guide roller 23 is positioned on the electrode foil and composite coating to be compacted, thereby limiting and combing the edge of the foil. At the same time, the spring 21 uses its own elastic force to adjust the height of the guide roller 23 according to the thickness of the electrode foil and composite coating to accommodate different thicknesses.

[0055] The width of the guide plate 13 is greater than the length of the upper pressure roller 16 and the lower pressure roller 17.

[0056] Furthermore, such as Figure 2 As shown, the physical boundaries on both sides of the guide plate 13 are used to constrain the material, ensuring that the material is always within the effective working area of ​​the pressure roller and preventing the electrode foil from bending.

[0057] Guide roller 23 is located outside opening 131.

[0058] Furthermore, such as Figure 3 As shown, when the electrode foil passes near the opening 131, the guide roller 23 contacts the edge of the electrode foil and guides the electrode foil to move forward.

[0059] Working process and principle: When motor foil and composite coating need to be placed at the feed inlet of guide plate 13, the connecting rods 22 on both sides of guide plate 13 are rotated outwards to place the motor foil and composite coating on top of guide plate 13. The connecting rods 22 are then released. At this time, torsion spring 25 uses its own elasticity to drive rotating rod 24 to rotate inwards towards the feed plate 13, moving guide roller 23 onto the electrode foil and composite coating to be compacted. Guide roller 23 contacts the edge of the electrode foil to limit and straighten the foil edge. Simultaneously, spring 21 uses its own elasticity to adjust the height of guide roller 23 according to the material thickness, adapting to materials of different thicknesses. When the electrode foil passes near opening 131, guide roller 23 guides it forward, ensuring that the material is always within the effective working area of ​​the pressure roller, preventing the electrode foil from bending and further reducing material waste.

[0060] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. An electrode calender, characterized by, include: Main body (10); Mounting slots (11) are provided on the front and rear side walls of the main body (10); A cover plate (12) is installed on the top of the mounting groove (11) to protect the internal components of the main body (10); The guide plate (13) is located at the top of the mounting groove (11) and extends to the front and rear sides of the main body (10), serving as the inlet and outlet for the electrode foil and composite coating. Cylinder (14), having no fewer than two, fixed to the top of the main body (10) and with the output end extending into the interior of the main body (10); The connecting bracket (15) is fixed to the bottom of the output end of the cylinder (14) located inside the main body (10) and moves up and down with the output end of the cylinder (14); The upper pressure roller (16) is rotatably connected to the inner side of the connecting frame (15) and located above the guide plate (13); The lower pressure roller (17) is rotatably connected to the inner wall of the main body (10) and located at the bottom of the guide plate (13). It works in conjunction with the upper pressure roller (16) to compact the electrode foil and composite coating.

2. An electrode calender as claimed in claim 1, characterized in that The bottom of the main body (10) is fixedly connected to a base (18), and a control terminal (19) is provided on the side wall of the main body (10). The control terminal (19) is used to control the operation of the tablet press.

3. An electrode calender as claimed in claim 1, wherein The guide plate (13) has an opening (131) in the middle, and the top of the lower pressure roller (17) is located inside the opening (131), reducing the distance between the guide plate (13) and the lower pressure roller (17).

4. The electrode calender of claim 1 wherein, The upper pressure roller (16) is fixed with a first motor for driving the upper pressure roller (16) to rotate, and the body (10) is fixed with a second motor for driving the lower pressure roller (17) to rotate.

5. An electrode calender as claimed in claim 3, wherein Springs (21) are fixedly connected to the top of the corners of the guide plate (13). A bracket (20) is fixedly connected to the end of the spring (21) away from the guide plate (13). A rotating rod (24) is provided between the two brackets (20) on the left and right sides of the guide plate (13). The two ends of the rotating rod (24) extend into the two brackets (20) on the same side and are rotatably connected to them. Torsion springs (25) are provided on the outer sides of both ends of the rotating rod (24). The torsion springs (25) are located inside the brackets (20) and drive the rotating rod (24) to rotate towards the inside of the guide plate (13). Several connecting rods (22) are fixedly connected to the outer sides of the two rotating rods (24). The side walls of the several connecting rods (22) are rotatably connected to guide rollers (23) pointing towards the inside of the guide plate (13).

6. An electrode flattening machine according to claim 5, characterized in that, The width of the guide plate (13) is greater than the length of the upper pressure roller (16) and the lower pressure roller (17).

7. An electrode calender as claimed in claim 5, wherein The guide roller (23) is located outside the opening (131).

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