Electrode slice striping and pressing equipment

Abstract

The utility model discloses electrode slice slitting and pressing equipment which comprises a conveying roller set installed in a box body, a cutting roller set located in front of the conveying roller set, and a pressing roller set located in front of the cutting roller set, and the cutting roller set comprises a one-to-two cutting roller set and a two-to-four cutting roller set which are arranged front and back. The two-to-four cutting roller set is located in front of the one-to-two cutting roller set, the two-to-four cutting roller set comprises two pairs of two-to-four cutting rollers which are arranged left and right, the number of the pressing roller sets is two, each pressing roller set comprises two pairs of pressing rollers which are arranged left and right, and the two pressing roller sets and the two pairs of two-to-four cutting rollers are arranged in a front-to-back corresponding mode. Due to the fact that the four cut electrode plates are separated from one another, when the electrode plates are pressed tightly, the adjacent electrode plates do not interfere with one another, and the quality of the electrode plates can be guaranteed. The electrode plate essence is a raw material of a final product of the electrode plate. And the raw material is subjected to subsequent die cutting to form a required electrode slice finished product.

Description

Technical Field

[0001] The utility model relates to the field of electrode sheet production, in particular to cutting and pressing equipment for raw materials of electrode sheets. Background Art

[0002] The patent document with authorization announcement number CN 218745171 U discloses an electrode sheet slitting equipment for lithium battery processing, including a box body, a material roller is rotatably provided at one end of the box body, a first motor is fixedly installed at one end of the material roller, the first motor is located outside the box body, and the material roller is located inside the box body. Two pressure rollers are rotatably provided on one side of the material roller, and the two pressure rollers are set high and low. A cutting assembly is provided on the side of the pressure roller away from the material roller, and a receiving roller for collecting strip electrode sheets is provided on one side of the cutting assembly. Through the setting of the two pressure rollers, the pressure roller presses the electrode sheet, thereby increasing the compaction density of the coating material on the surface of the electrode sheet, thereby improving the electrochemical performance of the lithium battery.

[0003] After the electrode sheets are cut into strips, they are pressed by a pressing roller. Since there is only a cutting seam between adjacent strip-shaped electrode sheets, and they are flattened by the pressing roller, interference will occur between adjacent strip-shaped electrode sheets, affecting the quality of the electrode sheets. Utility Model Content

[0004] The technical problem solved by the utility model is that after the electrode sheets are cut into strips, they are pressed by a pressing roller. Since there is only a cutting seam between adjacent strip electrode sheets, and they are flattened by the pressing roller, interference will occur between adjacent strip electrode sheets, affecting the quality of the electrode sheets.

[0005] In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: an electrode sheet strip pressing device, comprising a conveying roller group installed in a box body, a cutting roller group located in front of the conveying roller group, and a pressing roller group located in front of the cutting roller group, the cutting roller group comprising a one-divided-two cutting roller group and a two-divided-four cutting roller group arranged in front and behind, the two-divided-four cutting roller group is located in front of the one-divided-two cutting roller group, the two-divided-four cutting roller group comprises two pairs of two-divided-four cutting rollers arranged in the left and right, and the pressing roller group comprises two groups, each group of pressing roller groups comprises two pairs of pressing rollers arranged in the left and right, and the two groups of pressing roller groups are respectively arranged in front and behind the two pairs of two-divided-four cutting rollers.

[0006] The electrode sheet is transported forward by the conveying roller group and passes through the one-to-two cutting roller group. The cutting blade of the one-to-two cutting roller group divides the electrode sheet into two parts, which are set as the left half and the right half. The left half and the right half are respectively led to two pairs of two-to-four cutting rollers, and the left half and the right half are separated from each other. After that, the left half is cut by the left pair of two-to-four cutting rollers and divided into two strips. The right half is cut by the right pair of two-to-four cutting rollers and also divided into two strips. In this way, the four electrode sheets are respectively led to the corresponding four pairs of pressing rollers, and the four pairs of pressing rollers press their respective electrode sheets.

[0007] Since the four electrode sheets are separated from each other after cutting, adjacent electrode sheets will not interfere with each other when pressed, which is conducive to ensuring the quality of the electrode sheets. The electrode sheets here are actually the raw materials of the final finished electrode sheets. The raw materials are subsequently die-cut to form the required finished electrode sheets.

[0008] Compared with the axis of the one-to-two cutting roller group, the axis of the two pairs of two-to-four cutting rollers is tilted, and the axis of the two pairs of two-to-four cutting rollers is tilted in the opposite direction, that is, the two pairs of two-to-four cutting rollers are symmetrically arranged. The electrode sheet is cut into two by the one-to-two cutting roller group. Since the axis of the two pairs of two-to-four cutting rollers is tilted, the two electrode sheets respectively led to the two pairs of two-to-four cutting rollers are separated left and right.

[0009] Compared with the axis of any corresponding pair of two-to-four cutting rollers, the axis of the two pairs of pressing rollers is tilted, and the axis of the two pairs of pressing rollers is tilted in the opposite direction, that is, the two pairs of pressing rollers are symmetrically arranged. Any of the two electrode sheets is divided into two electrode sheets after being cut by the corresponding pair of two-to-four cutting rollers. Since the axis of the two pairs of pressing rollers corresponding to the pair of two-to-four cutting rollers is tilted, the two electrode sheets respectively led to the two pairs of pressing rollers are separated left and right. In this way, the original electrode sheet conveyed by the conveying roller group is divided into four and pressed by the corresponding pressing rollers.

[0010] A first separator bar is provided at the center in front of the one-to-two cutting roller set, and the first separator bar has a wedge-shaped structure; a second separator bar is provided at the center in front of each pair of two-to-four cutting rollers, and the second separator bar has a wedge-shaped structure. After any electrode sheet is divided into two, it is separated by the wedge-shaped structure of the corresponding separator bar, moves away from each other, and enters the next cutting or pressing link.

[0011] The two groups of pressing rollers include a first pressing roller group and a second pressing roller group. The first pressing roller group includes a first pair of pressing rollers and a second pair of pressing rollers. The second pressing roller group includes a third pair of pressing rollers and a fourth pair of pressing rollers.

[0012] The first pair of pressing rollers includes a first pressing roller and a second pressing roller, the second pair of pressing rollers includes a third pressing roller and a fourth pressing roller, the third pair of pressing rollers includes a fifth pressing roller and a sixth pressing roller, and the fourth pair of pressing rollers includes a seventh pressing roller and an eighth pressing roller.

[0013] The first and fifth pressing rollers are mounted on the first pressing roller shaft, the second, third, sixth and seventh pressing rollers are mounted on their respective pressing roller shafts, and the fourth and eighth pressing rollers are mounted on the second pressing roller shaft.

[0014] The first pressing roller shaft is located above the second pressing roller, the third pressing roller, the sixth pressing roller and the seventh pressing roller, the second pressing roller shaft is located below the second pressing roller, the third pressing roller, the sixth pressing roller and the seventh pressing roller, and the second pressing roller, the third pressing roller, the sixth pressing roller and the seventh pressing roller are at the same height.

[0015] The two ends of the first pressing roller are pivotally connected to the side wall of the box body and driven by the first motor, and the two ends of the second pressing roller are pivotally connected to the side wall of the box body and driven by the second motor.

[0016] The first motor drives the first pressing roller shaft, and the first pressing roller shaft drives the first pressing roller and the fifth pressing roller thereon. During the process of pressing the electrode sheet, the first pressing roller drives the second pressing roller, and the fifth pressing roller drives the sixth pressing roller.

[0017] The second motor drives the second pressing roller shaft, and the second pressing roller shaft drives the fourth pressing roller and the eighth pressing roller thereon. In the process of pressing the electrode sheet, the fourth pressing roller drives the third pressing roller, and the eighth pressing roller drives the seventh pressing roller.

[0018] The first motor and the second motor drive corresponding pressing rollers through a transmission belt, and the first motor and the second motor are installed on the side wall of the box body.

[0019] After being pressed by the pressing roller, the electrode sheet is wound on the corresponding winding frame.

[0020] The two-in-four cutting roller is pivoted on the first bracket plate, and the second, third, sixth and seventh pressing rollers are pivoted on the second bracket plate. Since the two-in-four cutting rollers, as well as the second, third, sixth and seventh pressing rollers are arranged obliquely, except for one end of the two-in-four cutting roller and the pressing roller close to the side wall of the box body pivoted on the side wall of the box body, the ends of the other two-in-four cutting rollers and the pressing rollers are pivoted on the corresponding bracket plates. The bracket plate is arranged vertically, with the top connected to the top cover plate of the box body and the bottom connected to the bottom plate of the box body.

[0021] The conveying roller group is linked by the first gear group, the one-to-two cutting roller group is linked by the second gear group, the first gear group and the second gear group are linked by a transmission belt, and the transmission belt is driven by the third motor. The transmission belt is equipped with a tensioning wheel, and under the drive of the transmission belt, the conveying roller group and the one-to-two cutting roller group are linked. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 This is the front view of the electrode sheet stripping and pressing device;

[0024] Figure 2 for Figure 1 Rear view of

[0025] Figure 3 for Figure 1 AA section view;

[0026] Figure 4 for Figure 3 BB cross-sectional view;

[0027] Figure 5 for Figure 4 Right view of;

[0028] Figure 6 for Figure 4 Middle CC section;

[0029] Figure 7 It is a working schematic diagram of the electrode sheet stripping and pressing equipment;

[0030] Figure 8 for Figure 7 Bottom view of .

[0031] Explanation of symbols in the figure:

[0032] 10. Box body; 11. First bracket plate; 12. Second bracket plate;

[0033] 20. Conveying roller set; 21. First gear set;

[0034] 30. One-to-two cutting roller set; 31. First dividing strip; 32. Wedge-shaped structure; 33. Second gear set; 34. Transmission belt; 35. Third motor; 36. Cutting blade of one-to-two cutting roller set; 37. Tensioning wheel;

[0035] 40. Two-to-four cutting roller; 41. Second dividing strip;

[0036] 50. A first pressing roller group;

[0037] 51, first pair of pressing rollers; 511, first pressing roller; 512, second pressing roller; 52, second pair of pressing rollers; 523, third pressing roller; 524, fourth pressing roller;

[0038] 60. Second pressing roller group;

[0039] 63, the third pair of pressing rollers; 635, the fifth pressing roller; 636, the sixth pressing roller;

[0040] 64, the fourth pair of pressing rollers; 647, the seventh pressing roller; 648, the eighth pressing roller;

[0041] 71. first pressing roller; 72. second pressing roller; 73. first motor; 74. second motor;

[0042] 90. Electrode sheet; 91. Left half; 92. Right half; 93. Strip electrode sheet. DETAILED DESCRIPTION

[0043] like Figure 3 , Figure 4 The electrode sheet strip pressing device includes a conveying roller group 20 installed in a box body 10, a cutting roller group located in front of the conveying roller group, and a pressing roller group located in front of the cutting roller group. The cutting roller group includes a one-to-two cutting roller group 30 and a two-to-four cutting roller group arranged in front and behind. The two-to-four cutting roller group is located in front of the one-to-two cutting roller group. The two-to-four cutting roller group includes two pairs of two-to-four cutting rollers 40 arranged in the left and right. The pressing roller group includes two groups, each group of pressing roller groups includes two pairs of pressing rollers arranged in the left and right, and the two groups of pressing roller groups are respectively arranged in front and behind the two pairs of two-to-four cutting rollers.

[0044] refer to Figure 7 , Figure 8 The electrode sheet 90 is transported forward by the conveying roller group 20, passes through the one-to-two cutting roller group 30, and the cutting blade 36 of the one-to-two cutting roller group divides the electrode sheet into two parts, which are set as the left half 91 and the right half 92. The left half and the right half are respectively led to two pairs of two-to-four cutting rollers 40, and the left half and the right half are separated left and right. After that, the left half is cut by the left pair of two-to-four cutting rollers 40 and divided into two. The right half is cut by the right pair of two-to-four cutting rollers and also divided into two. In this way, the four electrode sheets are respectively led to the corresponding four pairs of pressing rollers, and the four pairs of pressing rollers press their respective electrode sheets.

[0045] Since the four electrode sheets are separated from each other after cutting, adjacent electrode sheets will not interfere with each other when pressed, which is conducive to ensuring the quality of the electrode sheets.

[0046] refer to Figure 3Compared with the axis of the one-to-two cutting roller set 30, the axis of the two pairs of two-to-four cutting rollers 40 is tilted, and the axis of the two pairs of two-to-four cutting rollers is tilted in the opposite direction, that is, the two pairs of two-to-four cutting rollers 40 are symmetrically arranged. The electrode sheet 90 is cut into two by the one-to-two cutting roller set 30. Since the axis of the two pairs of two-to-four cutting rollers is tilted, the two electrode sheets respectively led to the two pairs of two-to-four cutting rollers 40 are separated left and right.

[0047] Compared with the axis line of any corresponding pair of two-to-four cutting rollers 40, the axis lines of the two pairs of pressing rollers are tilted, and the axis lines of the two pairs of pressing rollers are tilted in opposite directions, that is, the two pairs of pressing rollers are symmetrically arranged. Any of the two electrode sheets is divided into two electrode sheets after being cut by the corresponding pair of two-to-four cutting rollers 40. Since the axis lines of the two pairs of pressing rollers corresponding to the pair of two-to-four cutting rollers are tilted, the two electrode sheets respectively led to the two pairs of pressing rollers are separated left and right. In this way, the original electrode sheet 90 conveyed by the conveying roller group 20 is divided into four and pressed by the corresponding pressing rollers.

[0048] refer to Figure 3 , Figure 4 and Figure 6 A first dividing strip 31 is provided at the center in front of the one-to-two cutting roller set 30, and the first dividing strip has a wedge-shaped structure 32; a second dividing strip 41 is provided at the center in front of each pair of two-to-four cutting rollers 40, and the second dividing strip has a wedge-shaped structure. After any electrode sheet is divided into two, it is separated by the wedge-shaped structure 32 of the corresponding dividing strip, moves away from each other, and enters the next cutting or pressing link.

[0049] Combination Figures 3 to 5 The two groups of pressing rollers include a first pressing roller group 50 and a second pressing roller group 60 . The first pressing roller group includes a first pair of pressing rollers 51 and a second pair of pressing rollers 52 . The second pressing roller group includes a third pair of pressing rollers 63 and a fourth pair of pressing rollers 64 .

[0050] The first pair of pressure rollers includes a first pressure roller 511 and a second pressure roller 512 , the second pair of pressure rollers 52 includes a third pressure roller 523 and a fourth pressure roller 524 , the third pair of pressure rollers 63 includes a fifth pressure roller 635 and a sixth pressure roller 636 , and the fourth pair of pressure rollers 64 includes a seventh pressure roller 647 and an eighth pressure roller 648 .

[0051] The first pressure roller 511 and the fifth pressure roller 635 are mounted on the first pressure roller shaft 71 , the second pressure roller 512 , the third pressure roller 523 , the sixth pressure roller 636 , and the seventh pressure roller 647 are mounted on their respective pressure roller shafts, and the fourth pressure roller 524 and the eighth pressure roller 648 are mounted on the second pressure roller shaft 72 .

[0052] The first pressure roller shaft 71 is located above the second pressure roller, the third pressure roller, the sixth pressure roller and the seventh pressure roller, and the second pressure roller shaft 72 is located below the second pressure roller, the third pressure roller, the sixth pressure roller and the seventh pressure roller. The second pressure roller, the third pressure roller, the sixth pressure roller and the seventh pressure roller are at the same height.

[0053] Both ends of the first pressing roller 71 are pivotally connected to the side wall of the box body and driven by the first motor 73 . Both ends of the second pressing roller 72 are pivotally connected to the side wall of the box body and driven by the second motor 74 .

[0054] The first motor 73 drives the first pressing roller shaft 71, which drives the first pressing roller 511 and the fifth pressing roller 635 thereon. During the process of pressing the electrode sheet, the first pressing roller drives the second pressing roller 512, and the fifth pressing roller drives the sixth pressing roller 636.

[0055] The second motor 74 drives the second pressing roller 72, which drives the fourth pressing roller 524 and the eighth pressing roller 648. During the process of pressing the electrode sheet, the fourth pressing roller drives the third pressing roller 523, and the eighth pressing roller drives the seventh pressing roller 647.

[0056] The first motor 73 and the second motor 74 drive corresponding pressing rollers through a transmission belt. The first motor and the second motor are installed on the side wall of the box body 10.

[0057] After being pressed by the pressing roller, the electrode sheet is wound on the corresponding winding frame.

[0058] The two-to-four cutting roller 40 is pivoted on the first bracket plate 11, and the second pressing roller 512, the third pressing roller 523, the sixth pressing roller 636, and the seventh pressing roller 647 are pivoted on the second bracket plate 12. Since the two-to-four cutting roller 40, and the second pressing roller, the third pressing roller, the sixth pressing roller, and the seventh pressing roller are arranged obliquely, except for one end of the two-to-four cutting roller and the pressing roller close to the side wall of the box body 10, which are pivoted on the side wall of the box body, the ends of the other two-to-four cutting rollers and the pressing rollers are pivoted on the corresponding bracket plates. The bracket plate is arranged vertically, with the top connected to the top cover plate of the box body and the bottom connected to the bottom plate of the box body.

[0059] refer to Figure 1 The conveying roller set 20 is linked by the first gear set 21, the one-part-two cutting roller set 30 is linked by the second gear set 33, the first gear set and the second gear set are linked by a transmission belt 34, and the transmission belt is driven by a third motor 35. The transmission belt is equipped with a tensioning wheel 37, and under the drive of the transmission belt, the conveying roller set 20 and the one-part-two cutting roller set 30 are linked.

[0060] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An electrode sheet stripping and pressing device, comprising a conveying roller group (20) installed in a box (10), a cutting roller group located in front of the conveying roller group, and a pressing roller group located in front of the cutting roller group, characterized in that: The cutting roller group comprises a one-in-two cutting roller group (30) and a two-in-four cutting roller group arranged front and back, the two-in-four cutting roller group is located in front of the one-in-two cutting roller group, the two-in-four cutting roller group comprises two pairs of two-in-four cutting rollers (40) arranged left and right, and the pressing roller group comprises two groups, each group of pressing roller groups comprises two pairs of pressing rollers arranged left and right, and the two groups of pressing roller groups are respectively arranged front and back corresponding to the two pairs of two-in-four cutting rollers.

2. The electrode sheet stripping and pressing device according to claim 1, characterized in that: Compared to the axis of the one-to-two cutting roller set (30), the axis of the two pairs of two-to-four cutting rollers (40) are arranged at an inclination, and the inclination directions of the axis of the two pairs of two-to-four cutting rollers are opposite.

3. The electrode sheet stripping and pressing device according to claim 1, characterized in that: Compared to the axis lines of any corresponding pair of two-to-four cutting rollers (40), the axis lines of the two pairs of pressing rollers are arranged at an inclination, and the inclination directions of the axis lines of the two pairs of pressing rollers are opposite.

4. The electrode sheet stripping and pressing device according to claim 1, characterized in that: A first dividing strip (31) is provided at the central position in front of the one-to-two cutting roller group (30), and the first dividing strip is provided with a wedge-shaped structure (32); a second dividing strip (41) is provided at the central position in front of each pair of two-to-four cutting rollers (40), and the second dividing strip is provided with a wedge-shaped structure.

5. The electrode sheet stripping and pressing device according to claim 1, characterized in that: The two groups of pressing rollers include a first pressing roller group (50) and a second pressing roller group (60), the first pressing roller group includes a first pair of pressing rollers (51) and a second pair of pressing rollers (52), and the second pressing roller group includes a third pair of pressing rollers (63) and a fourth pair of pressing rollers (64); The first pair of pressing rollers includes a first pressing roller (511) and a second pressing roller (512), the second pair of pressing rollers (52) includes a third pressing roller (523) and a fourth pressing roller (524), the third pair of pressing rollers (63) includes a fifth pressing roller (635) and a sixth pressing roller (636), and the fourth pair of pressing rollers (64) includes a seventh pressing roller (647) and an eighth pressing roller (648); The first pressing roller (511) and the fifth pressing roller (635) are mounted on the first pressing roller shaft (71); the second pressing roller (512), the third pressing roller (523), the sixth pressing roller (636), and the seventh pressing roller (647) are mounted on their respective pressing roller shafts; and the fourth pressing roller (524) and the eighth pressing roller (648) are mounted on the second pressing roller shaft (72); The first pressing roller shaft (71) is located above the second pressing roller, the third pressing roller, the sixth pressing roller and the seventh pressing roller, and the second pressing roller shaft (72) is located below the second pressing roller, the third pressing roller, the sixth pressing roller and the seventh pressing roller, and the second pressing roller, the third pressing roller, the sixth pressing roller and the seventh pressing roller are at the same height; The two ends of the first pressing roller shaft (71) are pivotally connected to the side wall of the box body and driven by the first motor (73), and the two ends of the second pressing roller shaft (72) are pivotally connected to the side wall of the box body and driven by the second motor (74).

6. The electrode sheet stripping and pressing device according to claim 5, characterized in that: The two-to-four cutting roller (40) is pivotally connected to the first bracket plate (11), and the second pressing roller (512), the third pressing roller (523), the sixth pressing roller (636), and the seventh pressing roller (647) are pivotally connected to the second bracket plate (12).

7. The electrode sheet stripping and pressing device according to claim 1, characterized in that: The conveying roller set (20) is linked by the first gear set (21), and the two-part cutting roller set (30) is linked by the second gear set (21). The two gear sets (33) are linked, and the first gear set and the second gear set are linked by a transmission belt (34). The transmission belt is driven by a third motor (35).

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