Tandem continuous rolling structure

Abstract

The utility model relates to the field of lithium battery production equipment, and discloses a series continuous rolling structure which comprises a feeding fixed roller, the feeding moving roller is arranged on one side of the feeding fixed roller, and a feeding channel is formed between the feeding moving roller and the feeding fixed roller; the additional roller assembly is arranged on the side, away from the feeding movable roller, of the feeding fixed roller, and the additional roller assembly comprises a plurality of additional rollers; a pole piece discharging area is formed in the additional roller assembly; the series continuous rolling structure further comprises a first adjusting assembly and a second adjusting assembly which are used for adjusting the roller gap distance. The feeding fixed roller and the feeding movable roller are movably connected through the first adjusting assembly. The feeding moving roller is movably connected with the additional roller assembly through a second adjusting assembly; the first adjusting assembly and the second adjusting assembly are coaxially connected on the feeding fixing roller. The pole piece can realize automatic traction and threading through the sticking roller, so that the problem that manual threading operation is relatively tedious is solved, and the production efficiency of preparing the pole piece through dry rolling is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of lithium battery production equipment, and in particular to a series continuous rolling structure. Background Art

[0002] Rolling is one of the important processes in the production of pole pieces. The thickness of the pole piece is reduced and the density of the powder layer in the pole piece is increased by roller pressure. The existing pole piece rolling process includes dry rolling and wet rolling. Among them, dry rolling usually uses solid raw materials such as powder materials. The pole piece can be made by rolling the powder material with a continuous rolling dry device.

[0003] The existing connected roller pressing dry process device usually includes a roller pressing unit module, which is provided with several groups. The roller pressing unit module includes a first roller and a second roller. A roller pressing channel is formed between the first roller and the second roller. The powder material is in the roller pressing channel and is rolled by the first roller and the second roller.

[0004] However, during the process of rolling the pole piece through multiple rolling unit modules, manual threading is required to achieve the transmission of the pole piece between adjacent rolling unit modules, and the manual threading operation is relatively cumbersome. Utility Model Content

[0005] The purpose of the utility model is to provide a series continuous rolling structure. After the powder material is rolled by a fixed feed roller and a movable feed roller, it is rolled around a number of additional rollers in sequence to obtain an electrode. The electrode can be automatically pulled and threaded through a sticky roller, which is conducive to solving the problem of cumbersome manual threading operation and improving the production efficiency of dry rolling preparation of electrode.

[0006] The serial continuous rolling structure of the utility model comprises:

[0007] Feed fixed roller;

[0008] a feed moving roller, which is disposed on one side of the feed fixed roller and forms a feed channel for adding powder material between the feed moving roller and the feed fixed roller; and

[0009] An additional roller assembly is arranged on a side of the feed fixed roller away from the feed moving roller, and the additional roller assembly includes a plurality of additional rollers; a pole piece discharge area is formed in the additional roller assembly;

[0010] The serial continuous rolling structure also includes a first adjusting component and a second adjusting component for adjusting the roller gap distance; the feed fixed roller and the feed moving roller are movably connected through the first adjusting component; the feed moving roller and the additional roller assembly are movably connected through the second adjusting component; the first adjusting component and the second adjusting component are coaxially connected on the feed fixed roller.

[0011] In a preferred embodiment, the first adjustment component includes a first roller gap adjustment member for driving the feed moving roller to approach or move away from the feed fixed roller, and the first roller gap adjustment member is drivingly connected to the feed moving roller.

[0012] In a further preferred embodiment, the first adjustment component also includes a first linear guide for limiting the moving direction of the feed moving roller, and the first linear guide is arranged on one side of the feed moving roller.

[0013] In a further preferred embodiment, the first linear guide comprises:

[0014] A first fixed frame is sleeved on the outer sides of the bearings of the feed fixed roller and the feed moving roller, and is rotatably connected to the feed fixed roller;

[0015] The first movable bearing seat is sleeved on the feed movable roller and is slidably connected to the inner wall of the first fixed frame. The first roller gap adjusting member drives the first movable bearing seat to move along the first fixed frame.

[0016] In a preferred embodiment, the second adjustment assembly includes a second roller gap adjustment member, and the second roller gap adjustment member drives the additional roller assembly to approach or move away from the feed fixed roller;

[0017] The additional roller adjacent to the feed fixed roller is a connecting roller, and the second roller gap adjusting member is transmission-connected to the connecting roller.

[0018] In a further preferred embodiment, the second adjustment assembly includes a second fixed frame and a second movable bearing seat;

[0019] The second fixed frame is sleeved between the feed fixed roller and the connecting roller, and the connecting roller is drivingly connected to the second roller gap adjusting member;

[0020] The second movable bearing seat is arranged at one end of the connecting roller close to the second fixed frame, the second movable bearing seat is slidably connected to the second fixed frame, and the second roller gap adjusting member is transmission-connected to the second movable bearing seat.

[0021] In a further preferred embodiment, a linkage frame for series connection is provided between the connecting roller and the adjacent additional rollers, and between two adjacent additional rollers;

[0022] The linkage frame and the second adjustment component are coaxially connected on the connecting roller.

[0023] In a preferred embodiment, the additional rollers include at least two groups, each group of the additional rollers includes a first additional roller and a second additional roller; the first additional roller and the second additional roller, and two adjacent groups of additional rollers are connected in series via a linkage frame;

[0024] Wherein, each of the additional rollers is transmission-connected with an additional roller gap adjusting member for adjusting the roller gap distance.

[0025] In a further preferred embodiment, a rack is provided on one side of the linkage frame, a linear slide rail assembly is provided between the linkage frame and the rack, and the linkage frame is slidably connected to the rack via the linear slide rail assembly.

[0026] In a further preferred embodiment, it is characterized in that an additional movable bearing seat is arranged between the additional roller and the additional roller gap adjusting member, and the additional movable bearing seat is sleeved on the additional roller and is transmission-connected to the additional roller gap adjusting member.

[0027] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0028] In the serial continuous rolling structure of the utility model, the powder material enters between the fixed feed roller and the movable feed roller from the feed channel, the fixed feed roller and the movable feed roller rotate and roll the powder material, the powder material adheres to the surface of the fixed feed roller, and the fixed feed roller drives the powder material into the additional roller assembly. The powder material is rolled again by several additional rollers in turn, and the additional roller assembly rolls the powder material to form a pole piece, which is discharged from the pole piece discharge area, and the pole piece is automatically pulled and threaded between the additional rollers through the sticky roller to realize transmission and rolling, which can effectively improve the problem of cumbersome manual threading operation and improve the convenience of operation.

[0029] The first adjustment component can adjust the distance between the feed fixed roller and the feed moving roller, and the second adjustment component can adjust the distance between the feed moving roller and the additional roller assembly. The roller gap between the feed moving roller, the feed fixed roller and the additional roller assembly can be adjusted according to the production requirements of the electrode, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a top view of a series continuous rolling structure of a specific embodiment of the utility model;

[0031] Figure 2 It is a structural schematic diagram of a series continuous rolling structure in a specific embodiment of the utility model;

[0032] Figure 3 It is a top view of the serial continuous rolling structure of a specific embodiment of the utility model after the driving speed reducing member and the telescopic transmission member are hidden;

[0033] Figure 4 It is a structural schematic diagram of the first additional roller and the second additional roller in a specific embodiment of the utility model;

[0034] Figure 5 This is a rolling path diagram of the powder material in a specific embodiment of the utility model.

[0035] Reference numerals:

[0036] 1-feed fixed roller; 11-first fixed bearing seat; 12-second fixed frame; 121-second fixed bearing seat;

[0037] 2-feed moving roller; 21-feed channel; 22-first roller gap adjusting member; 23-first fixed frame; 24-first movable bearing seat; 3-additional roller assembly; 31-pole piece discharge area; 32-connecting roller; 321-second movable bearing seat; 322-third fixed bearing seat; 323-second roller gap adjusting member; 4-additional roller; 41-first additional roller; 42-second additional roller; 43-additional fixed bearing seat; 44-additional roller gap adjusting member; 45-additional movable bearing seat; 46-linkage frame; 5-frame; 51-linear slide rail assembly; 6-driving reduction member; 61-telescopic transmission member. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0040] Embodiment 1:

[0041] The serial continuous rolling structure of the utility model can be applied to the process of preparing pole pieces by dry rolling, and can solve the problem of complicated manual tape threading operation in the existing rolling unit module.

[0042] The serial continuous rolling structure of the utility model refers to Figure 1 , including a feed fixed roller 1, and first fixed bearing seats 11 are arranged on both sides of the feed fixed roller 1 along the axial direction. Further, a first fixed frame 23 is sleeved on the outer side of the first fixed bearing seat 11, and the first fixed frame 23 is specifically a vertically arranged rectangular frame body, and the first fixed bearing seat 11 is fixedly arranged in the first fixed frame 23.

[0043] A feed moving roller 2 is arranged on one side of the feed fixed roller 1. The feed moving roller 2 is arranged parallel to the feed fixed roller 1. Figure 2 A feeding channel 21 is formed between the feeding moving roller 2 and the feeding fixed roller 1, and the powder material enters between the feeding moving roller 2 and the feeding fixed roller 1 through the feeding channel 21 for rolling. Figure 1 A first movable bearing seat 24 is provided on both sides of the feed movable roller 2 along the axial direction. The first movable bearing seat 24 is located in the first fixed frame 23, and the outer wall of the first movable bearing seat 24 is slidably connected to the inner wall of the first fixed frame 23.

[0044] The first movable bearing seat 24 is transmission-connected to the side away from the first fixed bearing seat 11 with the first roller gap adjusting member 22. The first roller gap adjusting member 22 preferably but not limited to adopts a first hydraulic cylinder. The first roller gap adjusting member 22 drives the first movable bearing seat 24 to approach or move away from the first fixed bearing seat 11, and then the first movable bearing seat 24 drives the feed movable roller 2 along the first fixed frame 23 to approach or move away from the feed fixed roller 1, so as to adjust the roller gap size between the feed movable roller 2 and the feed fixed roller 1, that is, the size of the feed channel 21, so that the feed movable roller 2 and the feed fixed roller 1 can adapt to the production requirements of pole pieces of different thicknesses.

[0045] An additional roller assembly 3 is provided on the side of the feed fixed roller 1 away from the feed channel 21. In a preferred embodiment, the additional roller assembly includes an additional roller 4, and a plurality of additional rollers 4 are provided. The plurality of additional rollers 4 are arranged in parallel, and the plurality of additional rollers 4 are arranged in parallel with respect to the connecting roller 32. In some specific embodiments shown, four additional rollers 4 are provided. It can be understood that this is not a limitation on the number of additional rollers 4. The additional roller assembly 3 can adjust the number of additional rollers 4 according to the actual production requirements of the electrode sheet. By adjusting the number of additional rollers 4, the problem that the electrode sheet is prone to indentation, fracturing, and wrinkling during the tape running process due to the excessively long tape running path of the electrode sheet can be solved.

[0046] Among them, the additional roller 4 adjacent to the feed fixed roller 1 is a connecting roller 32, and the connecting roller 32 is specifically arranged parallel to the feed fixed roller 1. A second movable bearing seat 321 is arranged on both sides of the connecting roller 32 along the axial direction, and a second fixed frame 12 is sleeved on the outer side of the second movable bearing seat 321, and the outer wall of the second movable bearing seat 321 is slidably connected to the inner wall of the second fixed frame 12. The second movable bearing seat 321 is transmission-connected to the side away from the feed fixed roller 1 with a second roller gap adjusting member 323, and the second roller gap adjusting member 323 is preferably but not limited to a second hydraulic cylinder, and the second hydraulic cylinder drives the second movable bearing seat 321 to approach or move away from the feed fixed roller 1 along the second fixed frame 12, and the second movable bearing seat 321 drives the connecting roller 32 to approach or move away from the feed fixed roller 1 to adjust the roller gap size between the connecting roller 32 and the feed fixed roller 1.

[0047] A second fixed bearing seat 121 is provided at one end of the feed fixed roller 1 close to the second fixed frame 12 to realize the rotational connection between the feed fixed roller 1 and the second fixed frame 12. Specifically, the second fixed frame 12 and the second fixed bearing seat 121 are located on the side of the roller body of the first fixed frame 23 away from the feed fixed roller 1.

[0048] Reference Figure 2 A pole piece discharging area 31 for discharging pole pieces is formed between two adjacent additional rollers 4 .

[0049] In a preferred embodiment, reference Figure 3 A linkage frame 46 is provided between the connecting roller 32 and the adjacent additional roller 4, and between two adjacent additional rollers 4, wherein a third fixed bearing seat 322 is provided at one end of the connecting roller 32 close to the linkage frame 46, and the third fixed bearing seat 322 is fixedly connected to the linkage frame 46. A frame 5 is provided on one side of the linkage frame 46, and the frame 5 is slidably connected to the linkage frame 46, and is fixedly connected to the first fixed frame 23 and the second fixed frame 12 respectively.

[0050] Further, see Figure 2 The feed moving roller 2, the feed fixed roller 1, the connecting roller 32 and the additional roller 4 are all connected to the driving reduction member 6 in a transmission manner. The driving reduction member 6 is preferably, but not limited to, a motor reducer. Specifically, a telescopic transmission member 61 is provided between the feed moving roller 2, the feed fixed roller 1, the connecting roller 32 and the additional roller 4 and the driving reduction member 6 respectively. The telescopic transmission member 61 is preferably, but not limited to, a telescopic universal joint coupling or a synchronous belt. The connection method of the telescopic transmission member 61 is known to those skilled in the art and is achievable, and is not described in detail in this embodiment.

[0051] Reference Figure 1 to Figure 3, the powder material is added into the feed channel 21, the feed fixed roller and the feed moving roller rotate in opposite directions, the powder material passes between the feed fixed roller 1 and the feed moving roller 2, and the feed fixed roller 1 and the feed moving roller 2 cooperate to roll and press. Figure 5 The connecting roller rotates in opposite directions to the feed fixed roller, and the connecting roller rotates in opposite directions to the adjacent additional rollers. The powder material is conveyed by the sticky roller and bypasses the connecting roller 32 and the additional roller 4 in turn. The rolling path of the powder material is S-shaped, and the pole piece formed by roller pressing is discharged from the pole piece discharge area 31.

[0052] When the roll gap between the rollers is adjusted according to the thickness specification of the pole piece, the first roll gap adjusting member 22 drives the first movable bearing seat 24 and the feed moving roller 2 to approach or move away from the feed fixed roller 1 along the first fixed frame 23, so as to adjust the roll gap between the feed moving roller 2 and the feed fixed roller 1. The second roll gap adjusting member 323 drives the second movable bearing seat 321 and the connecting roller 32 to approach or move away from the feed fixed roller 1 along the second fixed frame 12, and the roll gap between the connecting roller 32 and the feed fixed roller 1 is adjusted, and the connecting roller 32 can drive the additional roller 4 and the linkage frame 46 to approach or move away from the feed fixed roller 1 synchronously.

[0053] Embodiment 2:

[0054] In order to improve the flexibility of using the additional roller 4, the difference between this embodiment and the above embodiment is that Figure 3 and Figure 4 The additional rollers include at least two groups. In some specific embodiments shown, two groups of additional rollers are provided. Each group of additional rollers includes a first additional roller 41 and a second additional roller 42. The first additional roller 41 is close to the feed fixed roller 1. The first additional roller 41 and the second additional roller 42 and the two adjacent groups of additional rollers 4 are connected in series through a linkage frame 46. Each additional roller 4 is sleeved with an additional fixed bearing seat 43 and an additional movable bearing seat 45.

[0055] Among them, on the first additional roller 41, the additional fixed bearing seat 43 is located between the additional movable bearing seat 45 and the roller body of the first additional roller 41. The additional fixed bearing seat 43 is fixedly connected to the corresponding linkage frame 46, and the outer wall of the additional movable bearing seat 45 is transmission-connected with an additional roller gap adjustment member 44, so that the additional movable bearing seat 45 is slidably connected to the corresponding linkage frame 46. The additional roller gap adjustment member 44 is preferably, but not limited to, an additional hydraulic cylinder, which drives the additional movable bearing 45 to move in the linkage frame 46 to achieve roller gap adjustment between the additional rollers 4.

[0056] On the second additional roller 42, the additional movable bearing seat 45 is located between the additional fixed bearing seat 43 and the roller body of the second additional roller 42. The additional fixed bearing seat 43 is fixedly connected to the corresponding linkage frame 46, and the outer wall of the additional movable bearing seat 45 is transmission-connected with an additional roller gap adjustment member 44, so that the additional movable bearing seat 45 is slidably connected to the corresponding linkage frame 46. The additional roller gap adjustment member 44 is preferably, but not limited to, an additional hydraulic cylinder, which drives the additional movable bearing 45 to move in the linkage frame 46 to achieve roller gap adjustment between the additional rollers 4. At this time, the first additional roller 41 adjacent to the feed fixed roller 1 is a connecting roller 32.

[0057] The roll gap between the additional rollers 4 can be adjusted, which is beneficial to improving the flexibility of the use of the additional roller assembly 3 so as to adapt to the processing requirements of pole pieces of different specifications.

[0058] Embodiment 3:

[0059] In order to improve the connection roller 32 and the additional roller 4, the difference between this embodiment and the above embodiment is that Figure 3 A linear guide rail assembly 51 is provided on one side of the linkage frame 46 close to the frame 5, and the linear guide rail assembly 51 can guide the movement of the linkage frame 46. Specifically, the linear guide rail assembly 51 includes a slider, and the slider is provided on the frame 5. A slide rail adapted to the slider is provided at one end of the linkage frame 46 close to the slider, and the slider is connected to the linkage at the slide rail.

[0060] When the connecting roller 32 drives the additional roller 4 to move, the linkage frame 46 is slidably connected with the slider, which is beneficial to improving the smoothness of the sliding adjustment of the linkage frame 46 .

[0061] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0062] In the embodiments of the present application, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the utility model product is usually placed when in use, rather than indicating or implying that the structure or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model, let alone an indication or implication of relative importance. In addition, the terms "first", "second", etc. are used only for descriptive purposes and are only for the convenience of distinction, and cannot be understood as indicating or implying relative importance.

[0063] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0064] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A series continuous rolling structure, characterized in that: include: Feed fixed roller (1); A feed moving roller (2) is arranged on one side of the feed fixed roller (1), and a feed channel (21) for adding powder material is formed between the feed moving roller (2) and the feed fixed roller (1); and An additional roller assembly (3) is arranged on a side of the feed fixed roller (1) away from the feed moving roller (2), and the additional roller assembly (3) comprises a plurality of additional rollers (4); a pole piece discharge area (31) is formed in the additional roller assembly (3); The serial continuous rolling structure also includes a first adjustment component and a second adjustment component for adjusting the roller gap distance; the feed fixed roller (1) and the feed moving roller (2) are movably connected via the first adjustment component; the feed moving roller (2) and the additional roller component (3) are movably connected via the second adjustment component; the first adjustment component and the second adjustment component are coaxially connected on the feed fixed roller (1).

2. The tandem continuous rolling structure according to claim 1, characterized in that: The first adjustment component comprises a first roller gap adjustment member (22) for driving the feed moving roller (2) to move closer to or away from the feed fixed roller (1); the first roller gap adjustment member (22) is in transmission connection with the feed moving roller (2).

3. The tandem continuous rolling structure according to claim 2, characterized in that: The first adjustment component also includes a first linear guide for limiting the moving direction of the feed moving roller (2), and the first linear guide is arranged on one side of the feed moving roller (2).

4. The tandem continuous rolling structure according to claim 3, characterized in that: The first linear guide comprises: A first fixed frame (23) is sleeved on the outer sides of the bearings of the feed fixed roller (1) and the feed moving roller (2), and is rotatably connected to the feed fixed roller (1); The first movable bearing seat (24) is sleeved on the feed movable roller (2) and is slidably connected to the inner wall of the first fixed frame (23). The first roller gap adjusting member (22) drives the first movable bearing seat (24) to move along the first fixed frame (23).

5. The tandem continuous rolling structure according to claim 1, characterized in that: The second adjustment component comprises a second roller gap adjustment member (323), and the second roller gap adjustment member (323) drives the additional roller component (3) to approach or move away from the feed fixed roller (1); The additional roller (4) adjacent to the feed fixed roller (1) is a connecting roller (32), and the second roller gap adjusting member (323) is transmission-connected to the connecting roller (32).

6. The tandem continuous rolling structure according to claim 5, characterized in that: The second adjustment component comprises a second fixed frame (12) and a second movable bearing seat (321); The second fixed frame (12) is sleeved between the feed fixed roller (1) and the connecting roller (32), and the connecting roller (32) is transmission-connected to the second roller gap adjusting member (323); The second movable bearing seat (321) is arranged at one end of the connecting roller (32) close to the second fixed frame (12), the second movable bearing seat (321) is slidably connected to the second fixed frame (12), and the second roller gap adjusting member (323) is transmission-connected to the second movable bearing seat (321).

7. The tandem continuous rolling structure according to claim 5, characterized in that: A linkage frame (46) for series connection is provided between the connecting roller (32) and the adjacent additional roller (4), and between two adjacent additional rollers (4); The linkage frame (46) and the second adjustment component are coaxially connected on the connecting roller (32).

8. The tandem continuous rolling structure according to claim 1, characterized in that: The additional rollers (4) include at least two groups, each group of the additional rollers (4) includes a first additional roller (41) and a second additional roller (42); the first additional roller (41) and the second additional roller (42) and two adjacent groups of additional rollers (4) are connected in series via a linkage frame (46); Wherein, each of the additional rollers (4) is transmission-connected to an additional roller gap adjusting member (422) for adjusting the roller gap distance.

9. The tandem continuous rolling structure according to any one of claims 7 to 8, characterized in that: A frame (5) is provided on one side of the linkage frame (46), a linear slide rail assembly (51) is provided between the linkage frame (46) and the frame (5), and the linkage frame (46) is slidably connected to the frame (5) via the linear slide rail assembly (51).

10. The tandem continuous rolling structure according to claim 8, characterized in that: An additional movable bearing seat (421) is provided between the additional rolling roller (4) and the additional roller gap adjusting member (422); the additional movable bearing seat (421) is sleeved on the additional rolling roller (4) and is drivingly connected to the additional roller gap adjusting member (422).

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