Device for improving wrinkling of rolled pole piece

Abstract

The utility model provides a device for improving wrinkling of a rolled pole piece, the device comprises a mounting seat, a horizontal adjusting mechanism, an offset detection mechanism, a pressure detection mechanism and a flattening mechanism, the levelness of a flattening roller can be kept through the horizontal adjusting mechanism, so that the surface of the rolled pole piece is uniformly stressed; the edge position of the rolling pole piece can be detected in real time through the deviation detection mechanism, so that the rolling mechanism can conveniently perform rolling deviation correction, and the rolling pole piece keeps preset linear motion; the pressure between the flattening roller and the rolled pole piece is detected through the pressure detection mechanism, and the device disclosed by the utility model flattens the rolled pole piece according to the preset pressure all the time after pressure adjustment, so that a better wrinkle improvement effect can be realized; and a layer of rubber belt is arranged in the middle of the flattening roller, so that the problems of blank leaving and wrinkling in the middle of the rolled pole piece are effectively solved. The device not only can effectively improve the wrinkling problem of the rolled pole piece, but also is simple in structure and convenient to install and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode production and manufacturing, in particular to a device for improving the wrinkling of rolled electrode sheets. Background Art

[0002] The roller-pressing process of lithium-ion batteries is to roll the coated pole pieces into smooth and flat pole pieces through the pressure of rollers. The quality of the rolled pole pieces can directly affect the performance of the subsequent processes. The standards for measuring the quality of rolled pole pieces mainly include alignment, thickness, appearance, etc. The abnormal appearance of rolled pole pieces is mainly manifested as wrinkles, white spots, black spots, scratches, and scratches. The appearance of rolled pole pieces is very important, especially the wrinkles of pole pieces are a very serious problem, which will directly affect the production of subsequent processes. Severe wrinkles of pole pieces will cause the rolled pole pieces to break, and the wrinkles with white space in the middle will also cause the cut pole pieces to break. Therefore, how to solve the wrinkle problem of rolled pole pieces and improve the quality of rolled pole pieces for lithium batteries is a problem that must be solved. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the technical problems existing in the background technology, a device is provided to solve the problem of wrinkling of rolled pole pieces. The device provided in the present application to improve the wrinkling of rolled pole pieces adopts the following technical solution:

[0004] A device for improving wrinkling of rolled pole pieces, comprising:

[0005] A mounting base, used to provide a mounting base;

[0006] A flattening mechanism, comprising a roller shaft and a flattening roller mounted on the roller shaft, wherein the roller shaft is mounted on the top of the mounting seat through a horizontal adjustment mechanism;

[0007] An offset detection mechanism, disposed below the flattening roller, includes a position detection sensor for detecting the edge position of the rolled pole piece;

[0008] The pressure detection mechanism is used to detect the pressure between the flattening roller and the rolled pole piece.

[0009] Furthermore, the mounting base includes a first mounting plate and a second mounting plate, and the horizontal adjustment mechanism includes a first horizontal adjustment device and a second horizontal adjustment device respectively arranged at both ends of the roller shaft, and the first horizontal adjustment device and the second horizontal adjustment device are respectively threadedly connected to the top of the first mounting plate and the second mounting plate.

[0010] Furthermore, the first horizontal adjustment device and the second horizontal adjustment device both include an adjustment disk and an adjustment rod, the adjustment rod is a threaded rod, and the tops of the first mounting plate and the second mounting plate are both provided with threaded holes that cooperate with the adjustment rod, one end of the adjustment rod fixes the adjustment disk, and the other end is threadedly connected to the tops of the first mounting plate and the second mounting plate respectively.

[0011] Furthermore, through holes cooperating with the adjusting rod are respectively provided at both ends of the roller shaft, and a supporting nut is provided on the adjusting rod, and the supporting nut is arranged below the through holes at both ends of the roller shaft.

[0012] Furthermore, the offset detection mechanism further comprises a fixing member and a sliding frame, the fixing member is mounted on the mounting seat, the sliding frame is mounted on the fixing member, and the position detection sensor is mounted on the sliding frame.

[0013] Furthermore, the fixing member includes a fixing rod and a sliding rod, the fixing rod is a threaded rod, both ends of the fixing rod are respectively threadedly connected to the first mounting plate and the second mounting plate, and the sliding rod is a threaded sleeve rod, and the sliding rod is threadedly connected to the fixing rod.

[0014] Furthermore, the sliding frame is installed on the sliding rod through a sliding member, and the sliding frame can move on the sliding rod under the action of an external force.

[0015] Furthermore, the mounting seat also includes a fixing plate, the pressure detection mechanism is mounted on the fixing plate, and a pressure detection probe is provided on the pressure detection mechanism.

[0016] Furthermore, a pressure detection sheet is provided on a side of the roller shaft close to the pressure detection mechanism, and the pressure detection probe is provided directly above the roller shaft and connected to the pressure detection sheet.

[0017] Furthermore, a circle of rubber belt is arranged in the middle of the flattening roller.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. By setting a horizontal adjustment mechanism to adjust the flattening mechanism horizontally, the horizontality of the flattening roller can be maintained, so that the surface of the rolled electrode sheet is evenly stressed, thereby improving the effect of improving wrinkling.

[0020] 2. By setting up an offset detection mechanism, the edge position of the rolled electrode sheet can be detected in real time to determine whether the rolled electrode sheet is offset, which is convenient for the subsequent winding mechanism to perform winding correction, so that the rolled electrode sheet maintains the preset straight line motion and will not affect the wrinkle improvement effect due to deviation.

[0021] 3. By setting up a pressure detection mechanism to detect the pressure between the flattening roller and the rolled electrode sheet, the pressure value can be adjusted in time, so that the device of the present application always flattens the rolled electrode sheet according to the preset pressure, which can achieve a better wrinkle removal effect.

[0022] 4. A layer of rubber belt is arranged in the middle of the flattening roller to fill the blank area in the middle of the rolled electrode sheet, which effectively solves the problem of wrinkles in the blank area in the middle of the rolled electrode sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a device for improving wrinkling of roller pressed pole pieces according to the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the horizontal adjustment mechanism of the utility model;

[0025] Figure 3 This is a schematic diagram of the flattening mechanism structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the offset detection mechanism of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the pressure detection mechanism of the utility model.

[0028] Reference numerals:

[0029] 1-mounting seat, 11-first mounting plate, 12-second mounting plate, 13-fixing plate;

[0030] 2-flattening mechanism, 21-flattening roller, 211-rubber belt, 22-roller shaft, 221-first through hole, 222-second through hole;

[0031] 3- offset detection mechanism, 31- sliding frame, 32- fixed rod, 33- sliding rod;

[0032] 4-level adjustment mechanism, 41-first level adjustment device, 42-second level adjustment device, 43-adjustment disk, 44-adjustment rod, 45-support nut;

[0033] 5-pressure detection mechanism, 51-pressure detection probe, 52-pressure detection sheet, 6-roller pressing plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. This embodiment is only used to explain the utility model and does not constitute a limitation on the scope of protection of the utility model.

[0035] The present application is further described in detail below in conjunction with the accompanying drawings.

[0036] like Figure 1 As shown, the present application provides a device for improving the wrinkling of rolled pole pieces, comprising:

[0037] Mounting base 1, used to provide a mounting base;

[0038] The flattening mechanism 2 comprises a roller shaft 22 and a flattening roller 21 mounted on the roller shaft 22, wherein the roller shaft 22 is mounted on the top of the mounting seat 1 through a horizontal adjustment mechanism 4;

[0039] The deviation detection mechanism 3 is arranged below the flattening roller 21 and includes a position detection sensor for detecting the edge position of the rolled pole piece 6;

[0040] The pressure detection mechanism 5 is used to detect the pressure between the flattening roller 21 and the rolled pole piece 6 .

[0041] The present application provides a device for improving the wrinkling of a rolled electrode sheet. By fixing the mounting seat 1 on the winding unit of the roller press, the device of the present application is fixedly connected to the roller press, and then the electrode sheet after rolling by the roller is flattened to improve the wrinkling problem of the rolled electrode sheet 6. The roller shaft 22 of the flattening mechanism 2 of the present application is installed on the top of the mounting seat 1 through the horizontal adjustment mechanism 4. By adjusting the horizontal adjustment mechanism 4, the horizontality of the roller shaft 22 and the flattening roller 21 can be adjusted, so that the surface of the rolled electrode sheet is uniformly stressed, and the effect of improving wrinkling is improved; the edge position of the rolled electrode sheet 6 can be detected in real time by the offset detection mechanism 3 to determine whether the rolled electrode sheet 6 is offset, so as to facilitate the subsequent winding mechanism to correct the deviation, so that the rolled electrode sheet 6 maintains a preset straight line motion, and the effect of improving wrinkling will not be affected by deviation; the pressure between the flattening roller 21 and the rolled electrode sheet 6 can be detected in real time by the pressure detection mechanism 5, and then the pressure is adjusted so that the pressure between the flattening roller 21 and the rolled electrode sheet 6 reaches a preset value. The present application can not only effectively improve the wrinkling problem of the rolled electrode sheet 6, but also has a simple structure, is easy to install and easy to operate.

[0042] like Figure 1 and Figure 2As shown, in some embodiments, the mounting seat 1 includes a first mounting plate 11 and a second mounting plate 12, and the horizontal adjustment mechanism 4 includes a first horizontal adjustment device 41 and a second horizontal adjustment device 42 respectively arranged at both ends of the roller shaft 22, and the first horizontal adjustment device 41 and the second horizontal adjustment device 42 both include an adjustment disk 43 and an adjustment rod 44, and the adjustment rod 44 is a threaded rod, and the adjustment disk 43 is fixed on the top of the adjustment rod 44. The top of the first mounting plate 11 and the second mounting plate 12 are both provided with threaded holes that match the adjustment rod 44, and the first horizontal adjustment device 41 and the second horizontal adjustment device 42 are respectively threadedly mounted on the top of the first mounting plate 11 and the second mounting plate 12. In the present application, by adjusting the degree of tightening of the adjustment rod 44 of the first horizontal adjustment device 41 and the second horizontal adjustment device 42 with the top of the first mounting plate 11 and the second mounting plate 12, the horizontality of the flattening mechanism 2 can be adjusted, so that the flattening roller 21 is kept in a horizontal state, so that the surface of the rolled pole piece 6 is kept uniformly stressed, and the flattening effect is improved.

[0043] like Figure 2 and Figure 3 As shown, the roller shaft 22 is provided with a first through hole 221 and a second through hole 222 respectively matched with the adjustment rod 44 at both ends, and a support nut 45 is provided on the adjustment rod 44. The support nut 45 is arranged below the first through hole 221 and the second through hole 222. After the two adjustment rods 44 pass through the first through hole 221 and the second through hole 222 at both ends of the roller shaft 22, they are supported and limited by the support nut 45. The support nut 45 can support and limit the flattening mechanism 2 on the one hand, and can also fine-tune the horizontality of the flattening roller 21 on the other hand. In addition, it can adapt to roller shafts 22 of different sizes, thereby improving the application scope of the present application.

[0044] like Figure 1 and Figure 4 As shown, in some embodiments, the offset detection mechanism 3 is arranged below the flattening roller 21, and the offset detection mechanism 3 further comprises a fixing member and a sliding frame 31, wherein the fixing member comprises a fixing rod 32 and a sliding rod 33, wherein the fixing rod 32 is a threaded rod, and threaded holes matching the fixing rod 32 are respectively arranged on the first mounting plate 11 and the second mounting plate 12, and the two ends of the fixing rod 32 are respectively mounted on the first mounting plate 11 and the second mounting plate 12 through the threaded holes. The sliding rod 33 is a threaded sleeve, and the sliding rod 33 is threadedly connected to the fixing rod 32, and the position detection sensor is mounted on the sliding frame 31, and is used to detect the edge position of the rolled electrode sheet.

[0045] As a preferred embodiment, the sliding frame 31 is set to be C-shaped, and the position detection sensor is a plurality of groups of infrared sensors. The upper and lower horizontal frames of the sliding frame 31 are respectively used to install the infrared signal transmitting end and the receiving end of each group of position detection sensors to obtain the edge position of the rolled pole piece 6. The sliding frame 31 is installed on the sliding rod 33 through a sliding member. Under the action of external force, the sliding frame 31 can slide on the sliding rod 33, and the position detection of the rolled pole pieces 6 of different sizes can be realized. By detachably installing the sliding rod 33 on the fixed rod 32, when the position detection sensor fails, the threaded connection facilitates the disassembly of the sliding rod 33, which can facilitate the maintenance and replacement of the position detection sensor.

[0046] In some embodiments, a correction controller and a driving device are provided on the winding unit of the roller press. The device of the present application adjusts the position of the sliding frame 31 according to the model and size of the rolled pole piece 6, and sets a preset value for the edge position of the rolled pole piece 6. The correction controller compares the edge position value of the rolled pole piece 6 detected by the position detection sensor on the sliding frame 31 with the preset value. After being processed by the correction controller, the driving device drives the winding unit to perform correction processing to achieve left and right position correction, so that the rolled pole piece 6 can be carried along a preset straight line to improve the wrinkle improvement effect. This part can adopt the existing technology, and is not a necessary technical feature for the present invention to solve the technical problem.

[0047] like Figure 1 and Figure 5 As shown, a fixed plate 13 is arranged on the top of the first mounting plate 11 near the flattening mechanism 2, the pressure detection mechanism 5 is fixedly mounted on the fixed plate 13, a pressure detection probe 51 is arranged on the pressure detection mechanism 5, and a pressure detection sheet 52 is arranged on the upper end of the roller 22 near the pressure detection mechanism 5, the pressure detection probe 51 is arranged just above the roller 22 and in contact with the pressure detection sheet 52, and the pressure between the flattening roller 21 and the rolled pole sheet 6 can be detected in real time through the pressure detection mechanism 5. Exemplarily, the pressure detection sheet 52 is arranged as a flat plate to achieve surface contact with the pressure detection probe 51, so as to achieve a better pressure detection effect. The device of the present application sets a preset pressure value according to the model and material of the rolled pole sheet 6, and by comparing the pressure value detected by the pressure detection mechanism 5 with the preset value, the pressure value between the flattening roller 21 and the rolled pole sheet 6 is adjusted, and the rolled pole sheet 6 is kept flattened according to the preset pressure, thereby improving the wrinkling effect.

[0048] As a preferred embodiment, Figure 3 As shown, the flattening roller 21 is rotatably connected in the middle of the roller shaft 22, and a circle of rubber belt 211 is set in the middle of the flattening roller 21 to solve the problem of wrinkling in the middle of the rolled electrode sheet 6 and avoid the broken belt of the rolled electrode sheet 6 due to wrinkling in the middle.

[0049] The working principle of the utility model is as follows: First, the edge position of the rolled electrode sheet 6 on the device of the present application and the pressure value between the flattening roller 21 and the rolled electrode sheet 6 are preset according to the model, material, size and other information of the rolled electrode sheet 6, and then the degree of tightening of the first horizontal adjustment device 41 and the second horizontal adjustment device 42 and the top of the first mounting plate 11 and the second mounting plate 12 is adjusted to keep the flattening mechanism 2 horizontal, and the support nut 45 is adjusted to fine-tune the horizontality of the flattening roller 21. During the operation of the device of the present application, the position detection sensor of the offset detection mechanism 3 detects the edge position of the rolled electrode sheet 6 in real time, and transmits it to the winding unit for correction; the pressure detection mechanism 5 detects the pressure value between the flattening roller 21 and the rolled electrode sheet 6 in real time, and compares it with the preset pressure value, and then adjusts the pressure value between the flattening roller 21 and the rolled electrode sheet 6 to keep the rolled electrode sheet 6 flattened according to the preset pressure, thereby improving the wrinkling effect.

[0050] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not deviate from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A device for improving wrinkling of rolled pole pieces, characterized in that: include A mounting base, used to provide a mounting base; A flattening mechanism, comprising a roller shaft and a flattening roller mounted on the roller shaft, wherein the roller shaft is mounted on the top of the mounting seat through a horizontal adjustment mechanism; An offset detection mechanism, disposed below the flattening roller, includes a position detection sensor for detecting the edge position of the rolled pole piece; as well as A pressure detection mechanism, used to detect the pressure between the flattening roller and the rolled pole piece; The mounting seat includes a first mounting plate and a second mounting plate, and the horizontal adjustment mechanism includes a first horizontal adjustment device and a second horizontal adjustment device respectively arranged at two ends of the roller shaft; The first level adjustment device and the second level adjustment device each include an adjustment disk and an adjustment rod, the adjustment rod is a threaded rod, the top ends of the first mounting plate and the second mounting plate are both provided with threaded holes that match the adjustment rod, one end of the adjustment rod fixes the adjustment disk, and the other end is threadedly connected to the top ends of the first mounting plate and the second mounting plate respectively; Through holes matching the adjusting rod are respectively arranged at both ends of the roller shaft, and a supporting nut is arranged on the adjusting rod, and the supporting nut is arranged below the through holes at both ends of the roller shaft; The offset detection mechanism further comprises a fixing member and a sliding frame, wherein the fixing member is mounted on the mounting seat, the sliding frame is mounted on the fixing member, and the position detection sensor is mounted on the sliding frame; The fixing member comprises a fixing rod and a sliding rod, wherein the fixing rod is a threaded rod, and both ends of the fixing rod are respectively threadedly connected to the first mounting plate and the second mounting plate, and the sliding rod is a threaded sleeve rod, and the sliding rod is threadedly connected to the fixing rod; The sliding frame is installed on the sliding rod through a sliding member, and the sliding frame can move on the sliding rod under the action of external force.

2. The device for improving wrinkling of rolled electrode sheets according to claim 1, characterized in that: The mounting seat also includes a fixing plate, the pressure detection mechanism is mounted on the fixing plate, and a pressure detection probe is provided on the pressure detection mechanism.

3. The device for improving wrinkling of rolled electrode sheets according to claim 2, characterized in that: A pressure detection sheet is arranged on one side of the roller shaft close to the pressure detection mechanism, and the pressure detection probe is arranged right above the roller shaft and connected to the pressure detection sheet.

4. The device for improving wrinkling of rolled electrode sheets according to claim 3, characterized in that: A circle of rubber belt is arranged in the middle of the flattening roller.

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