Novel dry-method sheet-making rolling device

Abstract

The utility model discloses a novel dry-method sheet-making rolling device, and belongs to the technical field of lithium battery pole piece production, the novel dry-method sheet-making rolling device comprises a rack, a feeding mechanism, a fixed roller, a first rolling assembly and a second rolling assembly, the fixed roller is installed on the rack, and a first sliding groove and a second sliding groove are formed in the positions, on the two adjacent sides of the fixed roller, of the rack respectively; the first rolling assembly comprises a first bearing seat, a first movable roller and a first driving part; the second rolling assembly comprises a second bearing seat, a second movable roller and a second driving piece. Carbon powder is firstly rolled and formed by the fixed roller and the first movable roller and then is finely pressed and thinned by the fixed roller and the second movable roller, so that the roller press has multiple purposes, the space occupied by pole piece production is reduced, meanwhile, the distance between the fixed roller and the first movable roller and the distance between the fixed roller and the second movable roller can be adjusted, and production of pole pieces with different thicknesses is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery pole piece production, and in particular discloses a novel dry-process sheet-making roller pressing device. Background Art

[0002] Currently, lithium battery negative electrode sheets are commonly produced using a dry process. Carbon powder is first rolled into a film using a horizontal roller press. This film is then thinned to meet the required thickness using a vertical roller press. The inventors discovered that the production process requires at least two roller presses to complete the sheeting process. This requires a large production plant and high equipment investment. Utility Model Content

[0003] In order to reduce the space occupied by electrode production, the present application provides a novel dry-process electrode production rolling device.

[0004] The present application provides a novel dry sheeting roller pressing device, which adopts the following technical solution:

[0005] A novel dry sheeting roller pressing device comprises a frame, a feeding mechanism, a fixed roller, a first roller pressing assembly and a second roller pressing assembly, wherein the fixed roller is mounted on the frame, and the frame is provided with a first chute and a second chute on adjacent sides of the fixed roller, respectively;

[0006] The first rolling assembly includes a first bearing seat, a first movable roller, and a first driving member, wherein the first bearing seat is slidably connected to the first slide groove, the first movable roller is mounted on the first bearing seat, and the first driving member is used to drive the first bearing seat to slide in the first slide groove;

[0007] The second rolling assembly includes a second bearing seat, a second movable roller and a second driving member. The second bearing seat is slidably connected to the second slide groove, the second movable roller is installed on the second bearing seat, and the second driving member is used to drive the second bearing seat to slide in the second slide groove.

[0008] By adopting the above technical solution, the carbon powder is first rolled into shape by the fixed roller and the first movable roller, and then fine-pressed and thinned by the fixed roller and the second movable roller, realizing the multi-purpose use of the roller press, thereby reducing the space occupied by the electrode production. At the same time, the distance between the fixed roller and the first movable roller and the second movable roller can be adjusted to facilitate the production of electrodes of different thicknesses.

[0009] Optionally, the frame includes side panels, connecting rods and a first nut. Two side panels are provided, and the two side panels are symmetrically arranged. Threaded rods with a diameter smaller than the connecting rod are fixed at both ends of the connecting rod. The two side panels are inserted into the threaded rods, and the first nut is threadedly connected to the threaded rods.

[0010] By adopting the above technical solution, the two side panels can be installed through the connecting rod, the threaded rod and the first nut, which facilitates the installation or disassembly of the rack.

[0011] Optionally, the feeding mechanism includes a fixed partition, a movable partition and a limiting assembly, wherein two fixed partitions are provided, and the two fixed partitions are fixed on the side plates at intervals, one fixed partition abuts against the upper surface of the fixed roller, and the other fixed partition abuts against the upper surface of the first movable roller, and two movable partitions are provided, and the two movable partitions are slidably connected between the two fixed partitions, one side of the movable partition abuts against the upper surface of the fixed roller, and the other side abuts against the upper surface of the first movable roller, and the limiting assembly is used to limit the movement of the movable partition.

[0012] By adopting the above technical solution, the fixed partition and the movable partition form a closed chamber, which is convenient for roller-forming of carbon powder.

[0013] Optionally, the limiting assembly includes a mounting seat, a limiting screw and a second nut, the mounting seat is fixed on the upper surface of the side panel, the limiting screw is fixed on the mounting seat, and the limiting screw is passed through the movable partition, the second nut is located on both sides of the movable partition, and the second nut is threadedly connected to the limiting screw.

[0014] By adopting the above technical solution, the movable partition can be moved by adjusting the second nuts located on both sides of the movable partition, which facilitates the production of pole pieces with different widths.

[0015] Optionally, the limiting assembly further includes a third nut, which is located at both ends of the limiting screw and is threadedly connected to the limiting screw, and the mounting seat is fixed to the upper surface of the side panel by bolts.

[0016] By adopting the above technical solution, the third nut can be used to achieve a detachable connection between the limiting screw and the mounting seat, and the bolt can be used to achieve a detachable connection between the mounting seat and the side panel, which facilitates the disassembly and assembly of the movable partition.

[0017] Optionally, side convex plates are fixed on both sides of the fixed partition, oblong holes are opened on the side convex plates, and the side convex plates are fixed to the side plates by bolts at the oblong holes.

[0018] By adopting the above technical solution, the provision of the oblong hole facilitates the installation of the fixed partition and facilitates the fine adjustment of the fixed partition.

[0019] Optionally, an extended bottom plate is fixed to the bottom surface of the side plate.

[0020] By adopting the above technical solution, the contact area of ​​the bottom surface of the side panel is increased, and at the same time, holes can be opened on the extended bottom plate, thereby facilitating the fixing of the side panel to the ground or work surface.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The carbon powder is first rolled into shape by the fixed roller and the first movable roller, and then fine-pressed and thinned by the fixed roller and the second movable roller, realizing the multi-purpose use of the roller press, thereby reducing the space occupied by the electrode production. At the same time, the distance between the fixed roller and the first and second movable rollers can be adjusted to facilitate the production of electrodes of different thicknesses.

[0023] 2. The two side panels can be installed through the connecting rod, threaded rod and first nut, which facilitates the installation or disassembly of the rack;

[0024] 3. The fixed partition and the movable partition form a closed chamber, which is convenient for the roll-forming of carbon powder. At the same time, by adjusting the second nuts on both sides of the movable partition, the movable partition can be moved, which is convenient for the production of pole pieces of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of this application.

[0026] Figure 2 It is a structural diagram of the feeding mechanism of this application.

[0027] Explanation of the accompanying drawings: 1. Frame; 11. Side panel; 111. First slide; 112. Second slide; 113. Extended bottom plate; 12. Connecting rod; 13. First nut; 14. Threaded rod; 2. Feeding mechanism; 21. Fixed partition; 211. Side convex plate; 212. Oblong hole; 22. Movable partition; 23. Limiting assembly; 231. Mounting seat; 232. Limiting screw; 233. Second nut; 234. Third nut; 3. Fixed roller; 4. First rolling assembly; 41. First bearing seat; 42. First movable roller; 43. First driving member; 5. Second rolling assembly; 51. Second bearing seat; 52. Second movable roller; 53. Second driving member. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 and Figure 2 This application is described in further detail.

[0029] The present application discloses a novel dry sheeting roller pressing device. Figure 1 A novel dry sheeting roller pressing device includes a frame 1, a feed mechanism 2, a fixed roller 3, a first roller pressing assembly 4, and a second roller pressing assembly 5. The feed mechanism 2 is located in the middle of the top of the frame 1. The fixed roller 3 is located on one side of the top of the frame 1. The first roller pressing assembly 4 is located on the other side of the top of the frame 1. The second roller pressing assembly 5 is located below the fixed roller 3.

[0030] Reference Figure 1The frame 1 includes a side panel 11, a connecting rod 12, a first nut 13 and a threaded rod 14. Two side panels 11 are provided, and the two side panels 11 are symmetrically arranged. Both side panels 11 are provided with a first slide groove 111 on one side of the first rolling assembly 4. Both side panels 11 are provided with a second slide groove 112 on one side of the second rolling assembly 5. An extended bottom plate 113 is fixed to the bottom surface of the side panel 11. The bottom contact area of ​​the side panel 11 is increased, and a hole can be opened on the extended bottom plate 113, thereby facilitating the fixation of the side panel 11 to the ground or work surface. Four connecting rods 12 are provided, and the four connecting rods 12 are located at the four corners of the side panel 11, and the four connecting rods 12 are located between the two side panels 11. The threaded rod 14 is integrally formed at the end portion of the connecting rod 12, and the diameter of the threaded rod 14 is smaller than the diameter of the connecting rod 12. The first nut 13 is threadedly connected to the threaded rod 14. Before installing the rack 1 , threaded rods 14 are passed through the side panels 11 and fastened with first nuts 13 so that the side panels 11 are pressed against the end faces of the connecting rods 12 , thereby fixing the two side panels 11 and facilitating assembly and disassembly of the rack 1 .

[0031] Reference Figure 1 and Figure 2 The feeding mechanism 2 includes a fixed partition 21, a movable partition 22 and a limiting assembly 23. Two fixed partitions 21 are provided, and the two fixed partitions 21 are symmetrically fixed on the side plate 11. One fixed partition 21 abuts against the upper surface of the fixed roller 3, and the other fixed partition 21 abuts against the upper surface of the first rolling assembly 4. Side convex plates 211 are integrally formed on both sides of the fixed partition 21. An oblong hole 212 is provided on the side convex plate 211. The side convex plate 211 is fixed to the side plate 11 by bolts at the oblong hole 212. The provision of the oblong hole 212 facilitates the installation of the fixed partition 21 and the fine-tuning of the fixed partition 21. Two movable partitions 22 are provided, and the two movable partitions 22 are slidably connected between the two fixed partitions 21. One side of the movable partition 22 abuts against the upper surface of the fixed roller 3, and the other side abuts against the upper surface of the first rolling assembly 4.

[0032] Reference Figure 1 and Figure 2The limiting assembly 23 includes a mounting seat 231, a limiting screw 232, a second nut 233 and a third nut 234. There are two groups of mounting seats 231, and each group of mounting seats 231 is provided with two. The mounting seat 231 is fixed to the upper surface of the side plate 11 by bolts. There are two limiting screws 232, and the two limiting screws 232 are passed through the mounting seat 231. The third nut 234 is threadedly connected to the end of the limiting screw 232 to achieve a detachable connection between the limiting screw 232 and the mounting seat 231. There are four groups of second nuts 233, and the four groups of second nuts 233 are located at the connection between the movable partition 22 and the limiting screw 232. There are two second nuts 233 in each group, and the two second nuts 233 are respectively located on both sides of the movable partition 22. And the second nut 233 is threadedly connected to the limiting screw 232. The cooperation between the limiting screw 232 and the second nut 233 can realize the movement and fixation of the movable partition 22, which is convenient for producing pole pieces of different widths.

[0033] Reference Figure 1 The first rolling assembly 4 includes a first bearing seat 41, a first movable roller 42 and a first driving member 43. The first bearing seat 41 is slidably connected to the first slide groove 111. The first movable roller 42 has the same diameter as the fixed roller 3, and the first movable roller 42 has the same installation height as the fixed roller 3. The first movable roller 42 is installed on the first bearing seat 41. The first driving member 43 is used to drive the first bearing seat 41 to slide in the first slide groove 111. The first driving member 43 is any one of an electric telescopic rod or a hydraulic cylinder. In this embodiment, the first driving member 43 adopts a hydraulic cylinder. The first driving member 43 drives the first bearing seat 41 to move, so that the first movable roller 42 can approach or move away from the fixed roller 3, thereby adjusting the distance between the first movable roller 42 and the fixed roller 3, so as to facilitate the production of pole pieces of different thicknesses.

[0034] Reference Figure 1 The second rolling assembly 5 includes a second bearing seat 51, a second movable roller 52 and a second driving member 53. The second bearing seat 51 is slidably connected to the second slide groove 112. The second movable roller 52 has the same diameter as the fixed roller 3, and the second movable roller 52 is located directly below the fixed roller 3. The second movable roller 52 is installed on the second bearing seat 51. The second driving member 53 is used to drive the second bearing seat 51 to slide in the second slide groove 112. The second driving member 53 is any one of an electric telescopic rod or a hydraulic cylinder. In this embodiment, the second driving member 53 adopts a hydraulic cylinder. The second driving member 53 drives the first bearing seat 41 to move, so that the second movable roller 52 can approach or move away from the fixed roller 3, thereby adjusting the distance between the second movable roller 52 and the fixed roller 3, so as to facilitate secondary precision thinning of pole pieces of different thicknesses.

[0035] The implementation principle of a novel dry-process sheeting roller pressing device in an embodiment of the present application is as follows: before the electrode is formed, the distance between the two movable partitions 22 is adjusted according to the width of the electrode. After the distance between the two movable partitions 22 is adjusted, carbon powder is placed in a closed chamber formed by the fixed partition 21 and the movable partition 22. The carbon powder is first roller-formed by the fixed roller 3 and the first movable roller 42, and then fine-pressed and thinned by the fixed roller 3 and the second movable roller 52. This realizes the multi-purpose use of the roller press, thereby reducing the space occupied by the electrode production. At the same time, the distance between the fixed roller 3 and the first movable roller 42 and the second movable roller 52 can be adjusted to facilitate the production of electrode sheets of different thicknesses.

[0036] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A novel dry sheeting roller pressing device, characterized in that: The invention comprises a frame (1), a feeding mechanism (2), a fixed roller (3), a first rolling assembly (4) and a second rolling assembly (5); the fixed roller (3) is mounted on the frame (1); and the frame (1) is provided with a first chute (111) and a second chute (112) on two adjacent sides of the fixed roller (3); The first rolling assembly (4) includes a first bearing seat (41), a first movable roller (42) and a first driving member (43), wherein the first bearing seat (41) is slidably connected to the first slide groove (111), the first movable roller (42) is mounted on the first bearing seat (41), and the first driving member (43) is used to drive the first bearing seat (41) to slide in the first slide groove (111); The second rolling assembly (5) includes a second bearing seat (51), a second movable roller (52) and a second driving member (53), wherein the second bearing seat (51) is slidably connected to the second slide groove (112), the second movable roller (52) is installed on the second bearing seat (51), and the second driving member (53) is used to drive the second bearing seat (51) to slide in the second slide groove (112).

2. The novel dry sheeting roller pressing device according to claim 1, characterized in that: The frame (1) comprises a side plate (11), a connecting rod (12) and a first nut (13); the side plate (11) is provided in two pieces, and the two side plates (11) are symmetrically arranged; threaded rods (14) having a diameter smaller than that of the connecting rod (12) are fixed at both ends of the connecting rod (12); the two side plates (11) are inserted into the threaded rod (14), and the first nut (13) is threadedly connected to the threaded rod (14).

3. A novel dry sheeting roller pressing device according to claim 2, characterized in that: The feeding mechanism (2) includes a fixed partition (21), a movable partition (22) and a limiting assembly (23). The fixed partition (21) is provided in two pieces. The two fixed partitions (21) are fixed on the side plate (11) at intervals. One fixed partition (21) abuts against the upper surface of the fixed roller (3), and the other fixed partition (21) abuts against the upper surface of the first movable roller (42). The movable partition (22) is provided in two pieces. The two movable partitions (22) are slidably connected between the two fixed partitions (21). One side of the movable partition (22) abuts against the upper surface of the fixed roller (3), and the other side abuts against the upper surface of the first movable roller (42). The limiting assembly (23) is used to limit the movement of the movable partition (22).

4. The novel dry sheeting roller pressing device according to claim 3, characterized in that: The limiting assembly (23) includes a mounting seat (231), a limiting screw (232) and a second nut (233); the mounting seat (231) is fixed on the upper surface of the side plate (11); the limiting screw (232) is fixed on the mounting seat (231); and the limiting screw (232) is passed through the movable partition (22); the second nut (233) is located on both sides of the movable partition (22), and the second nut (233) is threadedly connected to the limiting screw (232).

5. The novel dry sheeting roller pressing device according to claim 4, characterized in that: The limiting assembly (23) further includes a third nut (234), the third nut (234) being located at both ends of the limiting screw (232), and the third nut (234) being threadedly connected to the limiting screw (232), and the mounting seat (231) being fixed to the upper surface of the side plate (11) by bolts.

6. The novel dry sheeting roller pressing device according to claim 3, characterized in that: Side convex plates (211) are fixed on both sides of the fixed partition (21), and oblong holes (212) are opened on the side convex plates (211). The side convex plates (211) are fixed to the side plates (11) at the oblong holes (212) by bolts.

7. The novel dry sheeting roller pressing device according to claim 2, characterized in that: An extended bottom plate (113) is fixed to the bottom surface of the side plate (11).

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