Inclined film making machine for dry-method electrode

Abstract

The utility model relates to an inclined film making machine for a dry-method electrode, and the machine comprises a pedestal which is internally provided with a first motor; the rotating plate is rotationally mounted on the side surface of the base and connected with the first motor; the first bracket is mounted on the rotating plate through a moving assembly; the moving assembly drives the first support to move relative to the rotating plate. The second support is rotationally installed in the base, and the second support is connected with the rotating plate through a connecting rod and rotates along with the rotating plate; the first roller is rotationally connected with the first bracket through a first rotating shaft and moves along with the first bracket; the second roller is rotationally connected with the second bracket through a second rotating shaft and moves along with the second bracket; and the plurality of first rollers and the plurality of second rollers are arranged in a staggered manner, so that the electrode film passes through the space between the first rollers and the second rollers. According to the utility model, the inclination angle of the film making machine can be adjusted, the fluidity of materials is considered, material leakage and powder leakage are avoided, and the distance between the rollers can be adjusted to adapt to electrode films with different thicknesses.

Description

Technical Field

[0001] The present application relates to the technical field of electrode film-making equipment, and particularly to an inclined film-making machine for dry electrodes. Background Art

[0002] In the process of preparing battery electrode sheets, dry electrode film-making has become increasingly common. Dry electrode film-making can generally be summarized as mixing powdered active materials, conductive agents, and a small amount or no binder and forming them into self-supporting or non-self-supporting electrode films. In the prior art, the technology of using roll pressing for dry electrode film-making is not mature. Generally, horizontal roll pressing is used to form the film, but in this material transportation method, during the high-speed rolling process, problems such as tape breakage and easy agglomeration and blockage of the material during roll pressing are likely to occur. If directly using a completely vertical roll pressing to form the film, although the fluidity is better, the material will have powder dropping and leakage phenomena under the action of gravity, resulting in low final film-making quality. Therefore, a dry electrode film-making machine that can regulate the material flow and avoid powder dropping and leakage is needed. Summary of the Utility Model

[0003] Based on this, it is necessary to provide an inclined film-making machine for dry electrodes, and its specific technical solution is as follows.

[0004] An inclined film-making machine for dry electrodes includes:

[0005] A base, with a first motor installed inside;

[0006] A rotating plate, rotatably installed on the side of the base and connected to the first motor, and the first motor drives the rotating plate to rotate relative to the base;

[0007] A first bracket, installed on the rotating plate through a moving component and rotates with the rotating plate; the moving component drives the first bracket to move relative to the rotating plate;

[0008] A second bracket, rotatably installed inside the base, and the second bracket is connected to the rotating plate through a connecting rod and rotates with the rotating plate;

[0009] A first roller, rotatably connected to the first bracket through a first rotating shaft and moves with the first bracket;

[0010] A second roller, rotatably connected to the second bracket through a second rotating shaft and moves with the second bracket; a plurality of first rollers and second rollers are arranged in an alternating pattern, so that the electrode film passes through between the first roller and the second roller.

[0011] Further, the moving component includes a movable block, a connecting block, and an adjusting screw; a moving groove is provided inside the rotating plate, the movable block is movably installed in the moving groove, the connecting block is connected to the movable block, and the first bracket is connected to the connecting block; the adjusting screw is threadedly connected to the rotating plate and extends into the moving groove to rotatably connect with the movable block.

[0012] Further, one end of the adjusting screw rod extends out of the rotating plate, and a handle is connected to the extending end.

[0013] Further, the moving assembly drives the first bracket to move, so as to change the distance between the first roller and the second roller.

[0014] Further, the first rotating shaft does not contact the second bracket, and the second rotating shaft does not contact the first bracket.

[0015] Further, the first roller includes roller A and roller B, the second roller includes roller C and roller D, roller A and roller C are arranged opposite to each other in the horizontal direction, and roller A, roller B, and roller D are arranged in the height direction.

[0016] Further, roller C and roller D are connected by belt drive, and a second motor is installed on the second bracket, and the second motor is connected to roller D to drive roller D to rotate.

[0017] Further, a hopper is installed on the top of the second bracket, the hopper is located above roller A and roller C, and the material dropping port of the hopper is located between roller A and roller C.

[0018] Beneficial effects: The inclined film making machine for dry electrodes provided by the present utility model can drive the rotating plate to rotate, and can adjust the inclination angles of the first bracket and the second bracket differently, so as to adjust the inclination angle of the moving route of the electrode film formed by the first roller and the second roller. For materials with different formulas and ratios, by finding the most suitable inclination angle, the fluidity of the material can be taken into account and the phenomenon of material leakage and powder leakage can be avoided. By moving the first bracket to adjust the distance between the first roller and the second roller, the needs of different thickness electrode films can be met. And it can ensure that there is no interference between the adjustment of the inclination angle of the film making machine and the adjustment of the roller distance. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is one of the structural schematic diagrams of the film making machine;

[0021] Figure 2 It is the second of the structural schematic diagrams of the film making machine;

[0022] Figure 3Schematic diagram of the rotating plate and the moving component.

[0023] Description of the reference numerals in the drawings: 1, base; 2, rotating plate; 3, first bracket; 4, second bracket; 5, moving component; 6, first rotating shaft; 7, second rotating shaft; 8, hopper;

[0024] 11, first motor;

[0025] 31, connecting rod;

[0026] 41, rotating block;

[0027] 51, movable block; 52, connecting block; 53, adjusting screw; 54, handle; 55, locking bolt;

[0028] 61, roller A; 62, roller B;

[0029] 71, roller C; 72, roller 1D; 73, roller 2D; 74, belt; 75, second motor;

[0030] 81, fixing bracket. Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0034] In this application, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manners.

[0037] Embodiment

[0038] Referring to Figure 1 and Figure 2 As shown, this embodiment provides an inclined film forming machine for dry electrodes, including a base 1, a rotating plate 2, a first bracket 3, a second bracket 4, a first roller and a second roller.

[0039] Specifically, referring to Figure 1 and Figure 3As shown in the figure, a first motor 11 is installed inside the base 1. The rotating plate 2 is rotatably installed on the side of the base 1 and connected to the first motor 11, and the first motor 11 drives the rotating plate 2 to rotate relative to the base 1. The first bracket 3 is installed on the rotating plate 2 through the moving component 5 and rotates with the rotating plate 2. The first motor 11 drives the first bracket 3 to rotate relative to the base 1, thereby changing the inclination angle of the first bracket 3. The moving component 5 drives the first bracket 3 to move relative to the moving plate. The second bracket 4 is rotatably installed inside the base 1, and the second bracket 4 is connected to the rotating plate 2 through a connecting rod 31 and rotates with the rotating plate 2. When the first motor 11 drives the rotating plate 2 to rotate, it drives the first bracket 3 and the second bracket 4 to rotate synchronously, thereby synchronously adjusting the inclination degrees of the first bracket 3 and the second bracket 4.

[0040] The first roller is connected to the first rotating shaft 6, and the first rotating shaft 6 is rotatably connected to the first bracket 3. When the first bracket 3 rotates relative to the base 1, the first roller changes its position accordingly. When the first bracket moves relative to the rotating plate 2, the first roller also changes its position accordingly. The second roller is connected to the second rotating shaft 7, and the second rotating shaft 7 is rotatably connected to the second bracket 4. When the second bracket 4 rotates relative to the base 1, the second roller moves accordingly.

[0041] In this embodiment, the number of the first rollers is two, and the number of the second rollers is three, so that the first rollers and the second rollers are arranged in an alternating manner, and the electrode film passes through between each adjacent first roller and second roller in turn, thereby forming a moving path. When the inclination angles of the first bracket 3 and the second bracket 4 are changed by the first motor 11, the inclination degree of the moving path of the electrode film is adjusted, so that the most suitable inclination angle can be adjusted. When the moving component 5 drives the first bracket 3 to move, the relative positions of the first bracket 3 and the second bracket 4 are changed, thereby changing the distance between the first roller and the second roller to meet the requirements of different thicknesses of the electrode film.

[0042] A diagonal film-making machine for dry electrodes provided in this embodiment can adjust the inclination angles of the first bracket 3 and the second bracket 4 differently by driving the rotating plate 2 to rotate, thereby adjusting the inclination angle of the moving route of the electrode film formed by the first roller and the second roller. For materials with different formulas and ratios, by finding the most suitable inclination angle, the fluidity of the material can be taken into account and the phenomenon of material leakage and powder leakage can be avoided. Adjusting the distance between the first roller and the second roller by moving the first bracket 3 can meet the needs of different thicknesses of the electrode film. And it can ensure that there is no interference between the adjustment of the inclination angle of the film-making machine and the adjustment of the roller spacing.

[0043] Specifically, a rotating groove is provided above the base 1. The bottom of the second bracket 4 is connected to a rotating block 41, and the rotating block 41 is connected to the base 1 through a pin shaft, thereby realizing the relative rotational connection between the second bracket 4 and the base 1.

[0044] Specifically, referring to Figure 3 As shown, the moving assembly 5 includes a movable block 51, a connecting block 52, and an adjusting screw 53. A moving groove is provided in the rotating plate 2. The movable block 51 is movably installed in the moving groove. The connecting block 52 is connected to the movable block 51, and the first bracket 3 is connected to the connecting block 52. The adjusting screw 53 is threadedly connected to the rotating plate 2 and extends into the moving groove to rotatably connect with the movable block 51. A T-shaped fitting structure can be adopted between the movable block 51 and the moving groove to limit the moving direction of the movable block 51. By rotating the adjusting screw 53, the position of the movable block 51 can be adjusted, thereby adjusting the position of the first bracket 3 and realizing the adjustment of the distance between the first roller and the second roller.

[0045] In this embodiment, the movable block 51 and the connecting block 52 are locked by a locking bolt 55. When the first bracket 3 needs to be disassembled, the locking bolt 55 can be removed.

[0046] Specifically, one end of the adjusting screw 53 extends out of the rotating plate 2, and a handle 54 is connected to the extending end. By rotating the handle 54, the adjusting screw 53 can be rotated, which is simple and convenient. Anti-slip ribs are also provided on the adjusting screw 53 for anti-slip.

[0047] Specifically, one end of the first rotating shaft 6 is rotatably installed on the first bracket 3, and the other end does not contact the second bracket 4. One end of the second rotating shaft 7 is rotatably installed on the second bracket 4, and the other end does not contact the first bracket 3. Thus, when adjusting the distance between the rollers, the first roller moves with the first bracket 3, while the second roller remains stationary.

[0048] Specifically, referring to Figure 1 As shown, in this embodiment, the first roller includes roller A61 and roller B62, and the second roller includes roller C71, roller 1D72, and roller 2D73. Among them, roller A61 and roller C71 are closest to the mixed material. Roller A61 and roller C71 are arranged opposite to each other in the horizontal direction, and roller A61, roller 1D72, roller B62, and roller 2D73 are arranged in sequence in the height direction. The mixed material is first extruded into a film shape by roller A61 and roller C71, and then passes through the gap formed by roller A61 and roller 1D72, the gap formed by roller 1D72 and roller B62, and the gap formed by roller B62 and roller 2D73 in sequence, and is finally extruded into a shape.

[0049] Specifically, the roller C71, roller 1D72, and roller 2D73 are rotationally connected by a belt 74. A second motor 75 is installed on the second bracket 4. The second motor 75 is connected to the roller 2D73. The second motor 75 drives the roller 2D73 to rotate, thereby driving the roller 1D72 and the roller C71 to rotate. The roller A61 and the roller B62 rotate passively when the electrode film passes by.

[0050] Specifically, a hopper 8 is installed on the top of the second bracket 4. The hopper 8 is connected to the second bracket 4 through a fixing frame 81. The hopper 8 is located above the roller A61 and the roller C71, and the material dropping port of the hopper 8 is located between the roller A61 and the roller C71. The mixed material falls through the hopper 8 between the roller A61 and the roller C71 for roll forming. In order to further improve the fluidity, a vibration generating device can be installed on the hopper 8 to drive the hopper 8 to vibrate.

[0051] Principle of this embodiment:

[0052] When facing mixed materials with different formulas and different ratios, the first motor 11 drives the rotating plate 2 to rotate, driving the first bracket 3 and the second bracket 4 to rotate synchronously relative to the base 1, thereby adjusting the inclination of the first bracket 3 and the second bracket 4, and thus changing the inclination of the moving path of the electrode film. Adjust to the most suitable inclination so that the electrode film enters between the next rollers with high fluidity, reducing adverse phenomena such as electrode film breakage and easy caking and clogging of the material during roll pressing; due to the existence of the inclination angle, the unbonded or poorly bonded materials can smoothly enter the formed electrode film, thereby reducing the direct shedding of the powder and promoting the uniformity of the film. By rotating the adjusting screw 53 to change the position of the movable block 51, the relative position of the first bracket 3 and the second bracket 4 is adjusted, and the distance between the first roller and the second roller is adjusted, so as to be able to adapt to different thickness requirements of the electrode film.

[0053] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0054] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An inclined film-making machine for dry electrodes, characterized in that, Including: A base with a first motor installed inside; A rotating plate rotatably installed on the side of the base and connected to the first motor, and the first motor drives the rotating plate to rotate relative to the base; A first bracket installed on the rotating plate through a moving component and rotating with the rotating plate; the moving component drives the first bracket to move relative to the rotating plate; A second bracket rotatably installed inside the base, and the second bracket is connected to the rotating plate through a connecting rod and rotates with the rotating plate; A first roller rotatably connected to the first bracket through a first rotating shaft and moving with the first bracket; A second roller rotatably connected to the second bracket through a second rotating shaft and moving with the second bracket; a plurality of first rollers and second rollers are arranged alternately, so that the electrode film passes between the first roller and the second roller.

2. The inclined film forming machine for dry electrodes according to claim 1, characterized in that, The moving component includes a movable block, a connecting block and an adjusting screw; a moving groove is provided inside the rotating plate, the movable block is movably installed in the moving groove, the connecting block is connected to the movable block, and the first bracket is connected to the connecting block; the adjusting screw is threadedly connected to the rotating plate and extends into the moving groove to rotatably connect with the movable block.

3. The inclined film making machine for dry electrodes according to claim 2, characterized in that, One end of the adjusting screw extends out of the rotating plate, and the extending end is connected with a handle.

4. A diagonal film forming machine for dry electrodes according to claim 1, wherein, The moving component drives the first bracket to move, so that the distance between the first roller and the second roller changes.

5. A diagonal film forming machine for dry electrodes according to claim 1, characterized in that, The first rotating shaft does not contact the second bracket, and the second rotating shaft does not contact the first bracket.

6. The inclined film forming machine for dry electrodes according to claim 1, characterized in that, The first roller includes roller A and roller B, the second roller includes roller C and roller D, roller A and roller C are arranged opposite to each other in the horizontal direction, and roller A, roller B, and roller D are arranged in the height direction.

7. The inclined film forming machine for dry electrodes according to claim 6, wherein, Roller C and roller D are connected by belt drive, and a second motor is installed on the second bracket, and the second motor is connected to roller D to drive roller D to rotate.

8. The inclined film forming machine for dry electrodes according to claim 6, characterized in that, A hopper is installed on the top of the second bracket, the hopper is located above roller A and roller C, and the material dropping port of the hopper is located between roller A and roller C.

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