Feeding mechanism and dry electrode film manufacturing device

Abstract

This utility model relates to the technical field of battery manufacturing equipment, and discloses a feeding mechanism and a dry electrode film manufacturing apparatus. The feeding mechanism includes a frame, a hopper, a feeding roller, and a mixing rod. The hopper is mounted on the frame and forms a receiving cavity, which includes an inlet and an outlet. The outlet is located at the lower end of the hopper and extends along a first direction. The feeding roller is located at the outlet and can rotate relative to the hopper to discharge the material inside. The mixing rod is connected to the frame and extends its lower end above the outlet. The mixing rod can reciprocate relative to the hopper along the first direction. This feeding mechanism can stir the material at various positions at the bottom of the hopper along the extension direction of the outlet, ensuring uniform discharge and preventing material agglomeration, thereby ensuring the uniformity of the electrode film subsequently rolled.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing equipment technology, and in particular to a feeding mechanism and a dry electrode film manufacturing device. Background Technology

[0002] The dry hot roll forming process is based on the dry electrode process, and utilizes hot roll forming to complete the preparation of electrode sheets. This process does not use solvents. Instead, active particles, conductive agents, and binders such as polytetrafluoroethylene are dry-mixed to form a flowable powder. The flowable powder is then rolled to form an electrode film, and finally, the electrode film is directly rolled onto the current collector by hot roll forming to form a dense and uniformly thick electrode sheet.

[0003] In related technologies, a feeding mechanism is used to add flowable powder between the roller gaps of two pressure rollers. However, the flowable powder is easily squeezed, causing the powder at the bottom of the feeding mechanism's hopper to clump together, resulting in uneven material addition and making it impossible to guarantee the consistency of density after sheet formation. This seriously affects the success rate of dry roll forming of lithium-ion batteries.

[0004] Therefore, there is an urgent need for a feeding mechanism and a dry electrode film manufacturing device to solve the above-mentioned technical problems. Utility Model Content

[0005] One objective of this invention is to provide a feeding mechanism that can stir the material at various positions along the discharge port at the bottom of the hopper, ensuring uniform discharge and preventing material agglomeration, thereby ensuring uniformity of the electrode film after subsequent roller pressing.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The feeding mechanism includes:

[0008] frame;

[0009] A hopper is installed on the frame, the hopper forming a receiving cavity, the receiving cavity including an inlet and an outlet, the outlet being located at the lower end of the hopper and extending along a first direction;

[0010] A feeding roller is disposed at the discharge port and can rotate relative to the hopper to discharge the material in the hopper;

[0011] A mixing rod is connected to the frame and its lower end extends above the discharge port. The mixing rod is capable of reciprocating relative to the hopper along the first direction.

[0012] As an optional solution, the hopper includes two first sidewalls arranged opposite each other along the first direction and two second sidewalls arranged opposite each other along the second direction. The two first sidewalls and the two second sidewalls together enclose the receiving cavity and the discharge port. The position of at least one first sidewall along the first direction is adjustable to change the length of the discharge port.

[0013] As an optional solution, the feeding mechanism further includes two baffles arranged opposite each other along the first direction. The baffles are located below the hopper and their lower ends extend to the gap between the two pressure rollers of the dry electrode film manufacturing device. The first sidewall, whose position is adjustable along the first direction, is connected to the baffles corresponding to the position.

[0014] As an optional solution, the feeding mechanism further includes:

[0015] A support rod is connected to the frame and extends along the first direction, and the first sidewall or the baffle plate that is movable along the first direction is slidably engaged with the support rod.

[0016] A locking component is used to lock or unlock the relative position of the baffle plate and the support rod, which are movable along the first direction.

[0017] As an optional solution, the feeding mechanism further includes a linear bearing connected to the baffle plate and slidingly engaged with the support rod; and / or

[0018] The locking assembly includes a clamping member and an adjusting member. The clamping member is connected to the baffle plate and sleeved on the support rod. The adjusting member is threadedly connected to the clamping member and is used to clamp or release the support rod.

[0019] As an optional solution, the feeding mechanism further includes a limiting buffer assembly, which is connected to the frame and configured to limit and / or buffer the mixing rod along the first direction. The position of the limiting buffer assembly along the first direction is adjustable.

[0020] As an optional solution, the feeding mechanism further includes a first driving component, which is connected to the frame, and the mixing rod is connected to the output end of the first driving component. The first driving component is used to drive the mixing rod to reciprocate along the first direction.

[0021] As an alternative, the feeding roller is a shaft extending along the first direction, and the cross-section of the feeding roller is gear-shaped;

[0022] The feeding mechanism further includes a second drive assembly, which is connected to the frame and is used to drive the feeding roller to rotate around its own axis.

[0023] As an alternative, the feeding mechanism further includes a stepped screw that passes through the frame and is configured to mount the frame on the machine base of the dry electrode film manufacturing apparatus.

[0024] Another objective of this invention is to provide a dry electrode film manufacturing apparatus that, by employing the aforementioned feeding mechanism, produces electrode films with uniform surface density and a high yield.

[0025] To achieve this objective, the present invention adopts the following technical solution:

[0026] A dry electrode film manufacturing apparatus includes a machine base, at least two pressure rollers, and a feeding mechanism. The at least two pressure rollers are rotatably mounted on the machine base, and the feeding mechanism is mounted on the machine base and is used to add the material into the gap between the two pressure rollers.

[0027] The beneficial effects of this utility model are:

[0028] The feeding mechanism of this utility model contains a hopper filled with fluid powder for roller-pressing electrode films. When the feeding roller rotates, the fluid powder in the hopper is discharged from the lower outlet, the length of which is the width of the electrode film. The lower end of the mixing rod extends to the position above the outlet, which is the bottom of the hopper. Therefore, during the discharge process of the feeding roller, the mixing rod moves back and forth in a straight line along the first direction, which can fully stir the material above the outlet. This not only avoids the problem of material clumping before discharge, thus avoiding the problem of excessive local thickness of the roller-pressed electrode film, but also ensures that the material in the hopper is evenly distributed in the first direction. This ensures the uniformity of the material added between the rollers by the feeding mechanism, thus avoiding the situation where the roller-pressed electrode film is thick in the middle and thin at both ends. This makes the material stable and uniformly formed into sheets during the dry roller pressing process, improving the stability of equipment operation.

[0029] The dry electrode film manufacturing apparatus of this invention, by adopting the above-mentioned feeding mechanism, produces electrode films with uniform surface density and high yield. Attached Figure Description

[0030] Figure 1 This is a partial structural schematic diagram of the dry electrode film manufacturing apparatus provided in a specific embodiment of this utility model;

[0031] Figure 2 yes Figure 1 A sectional view of the middle structure;

[0032] Figure 3This is a schematic diagram of the feeding mechanism provided in a specific embodiment of this utility model;

[0033] Figure 4 yes Figure 2 Enlarged view of point A in the image;

[0034] Figure 5 This is a front view of the feeding mechanism provided in a specific embodiment of this utility model.

[0035] In the picture:

[0036] 100. Feeding mechanism; 200. Machine base; 300. Pressure roller;

[0037] 11. Frame; 111. Mounting hole; 12. Step screw;

[0038] 20. Hopper; 201. Inlet; 202. Outlet; 203. Receiving cavity; 21. First side wall; 22. Second side wall;

[0039] 30. Feeding roller;

[0040] 40. Mixing rod;

[0041] 51. Baffle plate; 52. Support rod; 53. Locking assembly; 531. Clamping component; 532. Adjusting component; 54. Linear bearing;

[0042] 60. Limiting and buffering assembly; 61. Bracket; 62. Buffer component; 63. Limiting component;

[0043] 71. First drive component; 72. Second drive component;

[0044] 81. First connector; 82. Second connector. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] This embodiment provides a feeding mechanism and a dry electrode film manufacturing apparatus, such as Figure 1 and Figure 2 As shown, the dry electrode film manufacturing apparatus includes a machine base 200, at least two pressure rollers 300, and a feeding mechanism 100. The pressure rollers 300 are rotatably mounted on the machine base 200, and two pressure rollers 300 form a pair, creating a roller gap. The feeding mechanism 100 is mounted on the machine base 200 and is used to add material between the roller gaps, which the pressure rollers 300 then form into a film. In this embodiment, the material is a free-flowing powder, and the pressure rollers 300 press this free-flowing powder into an electrode sheet. It is understood that the machine base 200 can be provided with two or more pairs of pressure rollers 300 capable of forming a roller gap, and correspondingly, each pair of pressure rollers 300 is configured with one feeding mechanism 100.

[0050] like Figures 2-4As shown, the feeding mechanism 100 includes a frame 11, a hopper 20, a feeding roller 30, and a mixing rod 40. The frame 11 is mounted on a machine base 200, and the hopper 20 is mounted on the frame 11. The hopper 20 forms a receiving cavity 203, which has an inlet 201 and an outlet 202. The inlet 201 is used to pour material into the receiving cavity 203, and the outlet 202 is located at the lower end of the hopper 20 and is used to discharge material. The outlet 202 is constructed as an elongated strip extending along a first direction, parallel to the axial direction of the pressure roller 300. The length of the outlet 202 determines the width of the electrode film formed after being rolled by the pressure roller 300. The feeding roller 30 is located inside the hopper 20 and positioned at the outlet 202, and the feeding roller 30 is rotatable relative to the hopper 20. When the feeding roller 30 rotates, the material in the receiving cavity 203 is discharged from the outlet 202. The mixing rod 40 is connected to the frame 11 and is at least partially located in the receiving cavity 203. The lower end of the mixing rod 40 extends above the discharge port 202. The mixing rod 40 is capable of reciprocating relative to the hopper 20 in a first direction.

[0051] In this embodiment, during the material discharge process of the feeding roller 30, the mixing rod 40 reciprocates linearly along the first direction, which can fully stir the material above the discharge port 202. This not only avoids the problem of material clumping before discharge, thus avoiding the problem of excessive local thickness of the roller-pressed electrode film, but also ensures that the material in the hopper 20 is evenly distributed in the first direction, ensuring the uniformity of the material added by the feeding mechanism to the pressure rollers 300. This prevents the roller-pressed electrode film from being thick in the middle and thin at both ends, making the material stable and uniformly formed into sheets during the dry roller pressing process, and improving the stability of equipment operation.

[0052] like Figure 3 As shown, the feeding mechanism 100 also includes stepped screws 12, which pass through the frame 11 and connect to the machine base 200, thereby mounting the frame 11 on the machine base 200. The stepped screws 12 not only facilitate the fixed installation of the feeding mechanism 100 but also position the feeding mechanism 100, ensuring precise alignment between the feeding mechanism 100 and the roll gap. In this embodiment, the frame 11 is mounted on the machine base 200 using multiple stepped screws 12.

[0053] The mixing rod 40 is externally coated with a Teflon layer. Teflon not only has good chemical corrosion resistance, preventing the mixing rod 40 from being corroded by materials and ensuring its service life, but also has a low coefficient of friction, thereby reducing the resistance of the reciprocating motion of the mixing rod 40.

[0054] like Figure 3As shown, the feeding mechanism 100 also includes a first drive assembly 71, which is connected to the frame 11. The mixing rod 40 is connected to the output end of the first drive assembly 71, and the first drive assembly 71 is used to drive the mixing rod 40 to reciprocate along a first direction. By setting the first drive assembly 71, the mixing rod 40 can be automatically driven to stir the material, saving manpower and ensuring uniform stirring. Optionally, the first drive assembly 71 can be a rodless cylinder, which is mounted on the frame 11, and the mixing rod 40 is fixed to the output end of the rodless cylinder. In some embodiments, the first drive assembly 71 includes a motor and a lead screw and nut structure, wherein the lead screw extends along the first direction and is rotatably mounted on the frame 11, the nut is sleeved on the lead screw and threadedly engaged with the lead screw, the nut is slidably engaged with the frame 11, and the mixing rod 40 is fixedly connected to the nut. The electrode can drive the lead screw to rotate forward or backward, thereby driving the nut and the mixing rod 40 to reciprocate linearly along the first direction.

[0055] like Figure 3 As shown, the feeding mechanism 100 also includes a limiting and buffering assembly 60, which is connected to the frame 11 and configured to limit and buffer the mixing rod 40 along a first direction. By setting the limiting and buffering assembly 60, the reciprocating motion of the mixing rod 40 can be limited and buffered, preventing rigid collisions between the mixing rod 40 and the hopper 20 or the frame 11, thus ensuring the service life of the feeding mechanism 100. In this embodiment, the feeding mechanism 100 includes two limiting and buffering assemblies 60, which are spaced apart and symmetrically arranged along the first direction, and respectively located on both sides of the mixing rod 40. Figure 3 As shown, the feeding mechanism 100 also includes a first connecting member 81, through which the mixing rod 40 is connected to the output end of the first drive assembly 71. The limiting buffer assembly 60 limits and buffers the movement of the mixing rod 40 by limiting and buffering the first connecting member 81. Specifically, the limiting buffer assembly 60 includes a bracket 61, a buffer member 62, and a limiting member 63. The bracket 61 is mounted on the frame 11, and both the buffer member 62 and the limiting member 63 are mounted on the bracket 61. The entire limiting buffer assembly 60 can be disassembled and assembled as a whole, making operation convenient. Optionally, the buffer member 62 can be an existing hydraulic buffer. The limiting member 63 is made of a rigid material, thereby reliably limiting the mixing rod 40. It can be understood that during the movement of the mixing rod 40, it first contacts the buffer member 62 and then contacts the corresponding limiting member 63.

[0056] like Figure 4As shown, the feeding roller 30 is a shaft extending along a first direction and is disposed within the discharge port 202 at the bottom of the receiving cavity 203. The cross-section of the feeding roller 30 is gear-shaped, and a groove is formed between two adjacent teeth of the feeding roller 30. This groove contains material, so that the material is discharged from the discharge port 202 when the feeding roller 30 rotates. It is understood that, in order to avoid material leakage between the feeding roller 30 and the inner wall of the hopper 20, the gap between the circumferential surface of the feeding roller 30 and the inner wall of the hopper 20 can be made as small as possible. In this embodiment, the feeding roller 30 is made of Teflon material, which is not only corrosion-resistant but also has low frictional resistance.

[0057] like Figure 3 As shown, the feeding mechanism 100 also includes a second drive assembly 72, which is connected to the frame 11 and is used to drive the feeding roller 30 to rotate around its own axis. By driving the feeding roller 30 to rotate via the second drive assembly 72, material can be added evenly into the roller gap. In some embodiments, the second drive assembly 72 includes a servo motor and a transmission assembly, with the output shaft of the servo motor connected to the feeding roller 30 via the transmission assembly. Optionally, the transmission assembly can be an existing belt drive assembly, etc., and is not specifically limited here.

[0058] In actual production, electrode films of different widths need to be manufactured due to the different widths of the electrode sheets. The existing feeding mechanism 100 can only add material to the roll gap with a fixed width. Therefore, it is necessary to replace it with a different feeding mechanism 100 to meet the production needs of electrode films of different widths, which affects production efficiency and increases equipment costs.

[0059] In this regard, such as Figure 3 As shown, the hopper 20 includes two first sidewalls 21 arranged opposite each other along a first direction and two second sidewalls 22 arranged opposite each other along a second direction. The two first sidewalls 21 and the two second sidewalls 22 together enclose a receiving cavity 203 and a discharge port 202. The position of at least one first sidewall 21 along the first direction is adjustable to change the length of the discharge port 202. This allows for changing the width of the material discharged from the discharge port 202, thereby changing the width of the electrode film extruded by the pressure roller 300 to meet different manufacturing needs, reducing the equipment cost of the electrode film. Furthermore, when changing the width of the manufactured electrode film, it is not necessary to completely disassemble and reassemble the feeding mechanism 100, making operation convenient and efficient. In this embodiment, the positions of both first sidewalls 21 along the first direction are adjustable, thereby ensuring that the adjusted discharge port 202 is aligned with the pressure roller 300 along the first direction, thus ensuring the quality of the electrode film extruded by the pressure roller 300. In this embodiment, as shown... Figure 4As shown, the second sidewall 22 is bent and formed, so that the accommodating cavity 203 includes a first rectangular section, a funnel section and a second rectangular section from top to bottom. The funnel section ensures that the powdered material flows smoothly downward. The first rectangular section can prevent the risk of material overflow. The second rectangular section constitutes the discharge port 202 of the hopper 20, which is used to cooperate with the feeding roller 30 to realize feeding.

[0060] In this embodiment, the position of the limiting buffer component 60 along the first direction is adjustable. Therefore, after changing the position of the first sidewall 21 in the first direction, by adjusting the driving stroke of the first driving component 71 and the position of the limiting buffer component 60 along the first direction, it can be ensured that the reciprocating stroke of the mixing rod 40 in the first direction matches the size of the discharge port 202 in the first direction, that is, that the material above the discharge port 202 can be stirred at various positions in the first direction, ultimately ensuring the uniformity of the surface density of the electrode film. Figure 3 As shown, the frame 11 has multiple mounting holes 111 at both ends along the first direction. The multiple mounting holes 111 are spaced apart along the first direction. The limiting buffer assembly 60 can be installed in different mounting holes 111 at the corresponding ends by fasteners, thereby realizing the adjustment of the installation position in the first direction.

[0061] like Figure 2 and Figure 3 As shown, the feeding mechanism 100 also includes two baffle plates 51 arranged opposite each other along the first direction. The baffle plates 51 are located below the hopper 20 and their lower ends extend into the gap between the rollers of the pressure rollers 300. By setting the baffle plates 51, the distribution of material in the first direction can be more accurately defined, thereby ensuring the width accuracy of the electrode film finally roll-formed. In this embodiment, the shape of the lower end of the baffle plate 51 is adapted to the diameter of the two pressure rollers 300, ensuring that it can extend into the gap between the rollers while minimizing the gap between it and the circumferential surface of the pressure rollers 300.

[0062] The first sidewall 21, whose position is adjustable along the first direction, is connected to the corresponding baffle plate 51, thus creating a baffle plate 51 whose position is adjustable along the first direction. While adjusting the position of the first sidewall 21 along the first direction to adjust the length of the discharge port 202, the corresponding baffle plate 51 is also simultaneously adjusted along the first direction, thereby adjusting the distance between the two baffle plates 51 and ensuring the width accuracy of the final roll-formed electrode film. It should be noted that the aforementioned corresponding position refers to the baffle plate 51 and the first sidewall 21 located at the same end of the feeding roller 30. In this embodiment, the two baffle plates 51 are respectively fixedly connected to the corresponding first sidewall 21, meaning that both the first sidewall 21 and the baffle plate 51 located at the same end of the feeding roller 30 can be simultaneously adjusted along the first direction. Figure 3As shown, the feeding mechanism 100 also includes a second connecting member 82, the upper end of which is connected to the first side wall 21, and the lower end of which is connected to the corresponding end baffle plate 51.

[0063] like Figure 3 and Figure 5 As shown, the feeding mechanism 100 also includes a support rod 52, which is connected to the frame 11 and extends along a first direction. Both baffle plates 51 are slidably engaged with the support rod 52, allowing both the baffle plate 51 and the corresponding first sidewall 21 to be adjusted in position along the first direction. Since the baffle plate 51 is located outside the hopper 20, it will not interfere with the reciprocating motion of the mixing rod 40. In this embodiment, two support rods 52 are provided, and the two support rods 52 are arranged in parallel. Each baffle plate 51 is slidably engaged with the two support rods 52, and the two support rods 52 can ensure the stability of the baffle plate 51 during support and sliding. Specifically, the feeding mechanism 100 also includes a linear bearing 54, which is fixedly connected to the baffle plate 51 and slidably engaged with the support rod 52. That is, the sliding engagement between the baffle plate 51 and the support rod 52 is achieved through the engagement of the linear bearing 54 and the support rod 52. In some embodiments, the two first sidewalls 21 may also be configured to slide in conjunction with the support rod 52, as long as they do not interfere with the reciprocating linear motion of the mixing rod 40.

[0064] like Figure 3 and Figure 5 As shown, the feeding mechanism 100 also includes a locking component 53, which is used to lock or unlock the relative positions of the baffle plate 51 and the support rod 52, which are movable along the first direction. This prevents the baffle plate 51 and the first sidewall 21 from shifting positions during use, ensuring the width accuracy of the final formed electrode film. In this embodiment, the locking component 53 includes a clamping member 531 and an adjusting member 532. The clamping member 531 is connected to the baffle plate 51 and sleeved on the support rod 52. The adjusting member 532 is threadedly connected to the clamping member 531 and is used to clamp or release the support rod 52. When it is necessary to adjust the position of the baffle plate 51 and the corresponding first sidewall 21, the adjusting member 532 is operated to release the clamping member 531 from the support rod 52. After the position of the baffle plate 51 and the corresponding first sidewall 21 is adjusted, the adjusting member 532 is operated again to lock the clamping member 531 and the support rod 52.

[0065] In this embodiment, the clamping member 531 is a U-shaped component, and the adjusting member 532 is a bolt. After the support rod 52 is fitted onto the clamping member 531, the adjusting member 532 passes through both ends of the clamping member 531 and is threaded to one end. Therefore, when the adjusting member 532 is rotated, the space enclosed by the clamping member 531 is reduced, thereby clamping the support rod 52. In some embodiments, the clamping member 531 is a sleeve-shaped component, and the adjusting member 532 is a bolt that passes through the side wall of the clamping member 531 and abuts against the support rod 52. When the adjusting member 532 is rotated and no longer abuts against the support rod 52, the clamping member 531 can slide along the support rod 52.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, based on the concept of this utility model, there will be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A feeding mechanism, characterized in that, include: Rack (11); A hopper (20) is installed on the frame (11). The hopper (20) forms a receiving cavity (203). The receiving cavity (203) includes an inlet (201) and an outlet (202). The outlet (202) is located at the lower end of the hopper (20) and extends along a first direction. A feeding roller (30) is provided at the discharge port (202) and can rotate relative to the hopper (20) to discharge the material in the hopper (20); The mixing rod (40) is connected to the frame (11) and its lower end extends above the discharge port (202). The mixing rod (40) is capable of reciprocating relative to the hopper (20) along the first direction.

2. The feeding mechanism according to claim 1, wherein The hopper (20) includes two first sidewalls (21) arranged opposite each other along the first direction and two second sidewalls (22) arranged opposite each other along the second direction. The two first sidewalls (21) and the two second sidewalls (22) together form the receiving cavity (203) and the discharge port (202). At least one of the first sidewalls (21) is adjustable in position along the first direction to change the length of the discharge port (202).

3. The feeding mechanism of claim 2, wherein, The feeding mechanism further includes two baffles (51) arranged opposite each other along the first direction. The baffles (51) are located below the hopper (20) and extend at their lower ends to the gap between the two pressure rollers (300) of the dry electrode film manufacturing device. The first sidewall (21) whose position is adjustable along the first direction is connected to the baffles (51) corresponding to the position.

4. The feeding mechanism of claim 3, wherein, The feeding mechanism also includes: The support rod (52) is connected to the frame (11) and extends along the first direction. The first side wall (21) or the baffle plate (51) that is movable along the first direction is slidably engaged with the support rod (52). A locking component (53) is used to lock or unlock the relative position of the baffle plate (51) and the support rod (52) which are movable along the first direction.

5. The feeding mechanism of claim 4, wherein, The feeding mechanism further includes a linear bearing (54), which is connected to the baffle plate (51) and slides in cooperation with the support rod (52); and / or The locking assembly (53) includes a clamping member (531) and an adjusting member (532). The clamping member (531) is connected to the baffle plate (51) and sleeved on the support rod (52). The adjusting member (532) is threadedly connected to the clamping member (531) and is used to clamp or release the support rod (52) with the clamping member (531).

6. The loading mechanism of claim 1, wherein, The feeding mechanism further includes a limiting buffer assembly (60), which is connected to the frame (11) and configured to limit and / or buffer the mixing rod (40) along the first direction. The position of the limiting buffer assembly (60) along the first direction is adjustable.

7. The feeding mechanism as described in claim 1, characterized in that, The feeding mechanism further includes a first driving component (71), which is connected to the frame (11). The mixing rod (40) is connected to the output end of the first driving component (71). The first driving component (71) is used to drive the mixing rod (40) to reciprocate along the first direction.

8. The feeding mechanism according to any one of claims 1 to 7, wherein The feeding roller (30) is a shaft extending along the first direction, and the cross-section of the feeding roller (30) is gear-shaped; The feeding mechanism further includes a second drive assembly (72), which is connected to the frame (11) and is used to drive the feeding roller (30) to rotate around its own axis.

9. The feeding mechanism according to any one of claims 1 to 7, wherein The feeding mechanism also includes a stepped screw (12) that passes through the frame (11) and is configured to mount the frame (11) on the machine base (200) of the dry electrode film manufacturing apparatus.

10. A dry electrode film manufacturing apparatus, characterized by comprising: The device includes a machine base (200), at least two pressure rollers (300), and a feeding mechanism as described in any one of claims 1-9, wherein the at least two pressure rollers (300) are rotatably mounted on the machine base (200), and the feeding mechanism is mounted on the machine base (200) and is used to add the material to the gap between the two pressure rollers (300).

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