Cutting device and pole piece production equipment

Abstract

The utility model relates to a cutting device and pole piece production equipment. The cutting device comprises a supporting mechanism, a sliding mechanism, a lifting mechanism, a cutter holder and a cutter mechanism. The two cutter mechanisms can cut the edges of the two sides of the pole piece in the width direction correspondingly. The distance between the two cutter mechanisms can be adjusted by enabling the two sliding supporting seats to slide in the first direction, so that the pole piece cutting device is suitable for cutting pole pieces with different widths. Moreover, the lifting mechanism drives the corresponding cutter seat to move along the second direction, so that the cutting depth of the cutter mechanism can be adjusted, and the cutter mechanism can be suitable for cutting the pole pieces with different thicknesses. Therefore, under the driving of the sliding mechanism and the lifting mechanism, the cutting width and thickness of the two cutter mechanisms can be adjusted, so that the cutting device and the pole piece production equipment are suitable for different types of pole pieces, and the application range of the cutting device and the pole piece production equipment is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery equipment, in particular to a cutting device and pole piece production equipment. Background Art

[0002] Dry coating is a common process for preparing lithium battery pole pieces. The powder is poured into the gap between the rollers and squeezed into a film by the relative rotation of the rollers, so that the corresponding electrode layer can be formed on the surface of the substrate. In the dry coating process, the rollers may deform during the continuous rolling process, and there may be problems such as uneven powder falling, which may lead to uneven edge thickness, incomplete shape, and inconsistent pole width of the pole pieces after rolling. Therefore, the edge of the pole piece needs to be cut during the rolling process. At present, due to the differences in parameters such as width and thickness of pole pieces of different models, the common cutting mechanism can generally only cut one type of pole piece. Utility Model Content

[0003] Based on this, it is necessary to provide a cutting device and electrode production equipment with a wider range of applications to address the above problems.

[0004] A cutting device, comprising:

[0005] Support mechanism;

[0006] Two sliding mechanisms, each of which comprises a sliding support seat, and the two sliding support seats are slidably mounted on the support mechanism along a first direction;

[0007] A lifting mechanism is disposed on each of the sliding support seats, wherein a cutter seat is disposed at a movable end of each of the lifting mechanisms, and the lifting mechanism can drive the corresponding cutter seat to move along a second direction perpendicular to the first direction; and

[0008] A cutting mechanism is installed on each of the cutting seats.

[0009] In one embodiment, the support mechanism includes a mounting plate extending along the first direction, a fixing plate fixed to both ends of the mounting plate, and a guide rail arranged on one side of the mounting plate and extending along the first direction, and the sliding support seat is slidably mounted on the support mechanism by cooperating with the guide rail through a slider.

[0010] In one embodiment, the support mechanism includes a scale extending along the first direction, and each of the sliding mechanisms also includes a pointer fixedly connected to the sliding support seat and pointing to the scale.

[0011] In one embodiment, each of the sliding mechanisms further comprises a locking assembly, and the locking assembly is capable of locking the sliding support seat to the support mechanism.

[0012] In one embodiment, each of the lifting mechanisms includes a driving member, a linear bearing, a guide rod and a connecting plate. The driving member is installed on the sliding support seat and is transmission-connected to the cutter seat. The linear bearing is installed on the sliding support seat and extends along the second direction. The guide rod can be slidably inserted into the linear bearing and is fixedly connected to the cutter seat through the connecting plate.

[0013] In one embodiment, each of the cutter mechanisms can be detachably mounted on the corresponding cutter seat.

[0014] In one embodiment, the cutter mechanism comprises a protective cover, a cutter shaft and a circular cutter, wherein the cutter shaft is rotatably mounted on the protective cover, and the circular cutter is mounted on the cutter shaft and is coaxially arranged with the cutter shaft;

[0015] Alternatively, the cutter mechanism comprises a fixed block and a flat cutter, wherein the fixed block is mounted on the cutter seat, and the flat cutter is mounted on one side of the fixed block.

[0016] In one of the embodiments, each of the cutter seats is also provided with a cleaning mechanism.

[0017] In one embodiment, the cleaning mechanism includes a base and a scraper disposed on the base.

[0018] A pole piece production device comprises a cutting device as described in any one of the above preferred embodiments.

[0019] The above-mentioned cutting device and pole piece production equipment, the two cutting mechanisms can respectively cut the two side edges in the width direction of the pole piece. By sliding the two sliding support seats along the first direction, the distance between the two cutting mechanisms can be adjusted, so that it is suitable for cutting pole pieces of different widths. Moreover, the lifting mechanism can adjust the cutting depth of the cutting mechanism by driving the corresponding cutting seat to move along the second direction, so that it can be suitable for cutting pole pieces of different thicknesses. It can be seen that, driven by the sliding mechanism and the lifting mechanism, the cutting width and thickness of the two cutting mechanisms can be adjusted, so that it is suitable for different types of pole pieces, so that the above-mentioned cutting device and pole piece production equipment have a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a cutting device in a preferred embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of a cutter mechanism in the cutting device shown;

[0023] Figure 3 for Figure 2 A cross-sectional view of the cutter mechanism along AA;

[0024] Figure 4 for Figure 1 A schematic diagram of the structure of a cleaning mechanism in the cutting device shown;

[0025] Figure 5 This is a schematic structural diagram of a cutting device in another embodiment of the utility model;

[0026] Figure 6 for Figure 5 A schematic diagram of the structure of the cutter mechanism in the cutting device shown. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] See also Figure 1 and Figure 5 The utility model provides a cutting device 100 and a pole piece production device (not shown). The pole piece production device includes a cutting device 100 .

[0034] The above-mentioned pole piece production equipment can adopt a dry coating process to prepare pole piece strips. Specifically, the above-mentioned pole piece production equipment generally also includes a rolling device (not shown) and a conveying device (not shown). The rolling device can press the powder into a film to obtain a pole piece strip; the pole piece strip prepared by rolling can be supported by the conveying device and conveyed outwardly, and the cutting device 100 can cut the edges on both sides of the width direction of the diaphragm strip output by the conveying device, so as to ensure that the width of the pole piece strip remains consistent in the length direction. Moreover, since the edge of the pole piece strip is prone to uneven thickness during the pressing process, the uniformity of the thickness of the pole piece strip can be improved to a certain extent by cutting off the edge of the pole piece strip. The conveying device generally includes a conveying roller, and the cutting device 100 can cooperate with the conveying roller to cut the pole piece strip.

[0035] It should be noted that, in other application scenarios, the cutting device 100 can also be used to cut other types of material strips to cut off the preset areas on both sides of the edge of the material strip in the width direction.

[0036] Please refer again Figure 1 The cutting device 100 in the preferred embodiment of the present invention includes a supporting mechanism 110 , a sliding mechanism 120 , a lifting mechanism 130 , a cutting seat 140 and a cutting mechanism 150 .

[0037] The support mechanism 110 is used to support the sliding mechanism 120. Two sliding mechanisms 120 are provided, and each sliding mechanism 120 includes a sliding support seat 121, and the two sliding support seats 121 are slidably mounted on the support mechanism 110 along the first direction. Specifically in this embodiment, the support mechanism 110 includes a mounting plate 111 extending along the first direction, a fixing plate 112 fixed to both ends of the mounting plate 111, and a guide rail 113 provided on one side of the mounting plate 111 and extending along the first direction. The fixing plate 112 can be fixed to the large plate of the above-mentioned pole piece production equipment by bolts, so as to realize the fixed installation of the support mechanism 110 and the cutting device 100. The sliding support seat 121 is slidably mounted on the support mechanism 110 through the slider 114 and the guide rail 113. In this way, the sliding support seat 121 can be made more stable during the sliding process.

[0038] A lifting mechanism 130 is correspondingly arranged on each sliding support seat 121, and a cutter seat 140 is arranged at the movable end of each lifting mechanism 130, and the lifting mechanism 130 can drive the corresponding cutter seat 140 to move along a second direction perpendicular to the first direction. In actual use, the first direction is parallel to the width direction of the pole piece material strip output by the above-mentioned conveying device, and the second direction is parallel to the thickness direction of the pole piece material strip.

[0039] Each cutting seat 140 is provided with a cutting mechanism 150, which is used to perform cutting operations. The two cutting mechanisms 150 correspond to the cutting areas on both sides of the electrode strip, respectively, and can cut both edges at the same time.

[0040] Please also read Figure 2 and Figure 3 In this embodiment, the cutter mechanism 150 includes a protective cover 151, a cutter shaft 152 and a circular cutter 153. The cutter shaft 152 is rotatably mounted on the protective cover 151, and the circular cutter 153 is mounted on the cutter shaft 152 and is coaxially arranged with the cutter shaft 152.

[0041] The protective cover 151 is installed with the cutter seat 140 to play a protective role. The circular cutter 153 is in a circular ring shape and can be sleeved on the cutter shaft 152 and fixedly connected to the cutter shaft 152. The circular cutter 153 extends out of the protective cover 151 and can abut against the pole piece material strip on the conveying roller. Moreover, the circular cutter 153 can drive the cutter shaft 152 to rotate as the pole piece material strip is conveyed, thereby cutting the pole piece material strip.

[0042] Specifically, the cutter mechanism 150 also includes an end cover 154, a knife pad 155, a shaft ring 156 and a deep groove ball bearing 157. The cutter shaft 152 passes through the end cover 154, the knife pad 155, the shaft ring 156 and the deep groove ball bearing 157. The end cover 154 is fixed to one end of the cutter shaft 152 to protect the cutter shaft 152. The cutter shaft 152 is rotatably mounted on the protective cover 151 through the deep groove ball bearing 157 to ensure the smoothness of rotation. Knife pads 155 are distributed on both sides of the circular cutter 153. The knife pads 155 can protect the circular cutter 153 and can cooperate with the shaft ring 156 to limit the circular cutter 153.

[0043] In addition, the cutting mechanism 150 may also adopt other structures. Figure 6 In another embodiment, the cutter mechanism 150 includes a fixed block 158a and a flat cutter 159, and the flat cutter 159 is installed on one side of the fixed block 158a. The fixed block 158a is installed on the cutter seat 140 to support the flat cutter 159. The flat cutter 159 protrudes from the fixed block 158a and can abut against the pole piece strip on the conveying roller. Moreover, as the pole piece strip is conveyed, the flat cutter 159 can slide relative to the pole piece strip to cut the pole piece strip.

[0044] The cutter mechanism 150 further includes a pressing plate 158b, which is located on the side of the flat cutter 159 facing away from the fixed block 158a. The pressing plate 158b can be fixedly connected with the fixed block 158a by bolts and clamp the flat cutter 159, thereby better fixing the flat cutter 159 and providing protection for both sides of the flat cutter 159.

[0045] Furthermore, in this embodiment, each cutting mechanism 150 can be detachably mounted on the corresponding cutting seat 140. Different types of cutting mechanisms 150 are suitable for cutting different materials, so the appropriate cutting mechanism 150 can be replaced according to the type of the pole piece strip for cutting, thereby helping to expand the application range of the cutting device 100.

[0046] During the production process, by sliding the two sliding support seats 121 along the first direction, the distance between the two cutting mechanisms 150 can be adjusted, so that it is suitable for cutting pole pieces of different widths. Furthermore, the lifting mechanism 130 can adjust the cutting depth of the cutting mechanism 150 by driving the corresponding cutting seat 140 to move along the second direction, so that it can be suitable for cutting pole pieces of different thicknesses. It can be seen that under the drive of the sliding mechanism 120 and the lifting mechanism 130, the cutting width and thickness of the two cutting mechanisms 150 can be adjusted, so that it is suitable for different types of pole pieces and has a wider range of applications.

[0047] Please refer again Figure 1 In this embodiment, the support mechanism 110 includes a scale 115 extending along the first direction, and each sliding mechanism 120 also includes a pointer 122 fixedly connected to the sliding support seat 121 and pointing to the scale 115.

[0048] Specifically, the scale 115 can be installed on the mounting plate 111. By observing the position indicated by each pointer 122 on the scale 115, the distance between the two sliding support seats 121 can be read, that is, the distance between the two cutting mechanisms 150. In this way, the operator can accurately adjust the distance between the two cutting mechanisms 150 to adapt to the corresponding width of the pole piece strip.

[0049] In this embodiment, each sliding mechanism 120 further includes a locking assembly 123 , and the locking assembly 123 can lock the sliding support seat 121 to the support mechanism 110 .

[0050] When the distance between the two cutting mechanisms 150 needs to be adjusted, the locking assembly 123 releases the lock on the sliding support seat 121, so that the sliding support seat 121 can smoothly slide along the supporting mechanism 110 to drive the two cutting mechanisms 150 to change their positions. When the distance between the two cutting mechanisms 150 is adjusted to the desired position, the locking assembly 123 locks the sliding support seat 121 to the supporting mechanism 110, so that the positions of the sliding support seat 121 and the cutting mechanism 150 cannot be changed, thereby ensuring that the distance between the two cutting mechanisms 150 can be kept stable during the cutting process.

[0051] Specifically, the locking assembly 123 includes a guide rail clamp 1231 and a connecting block 1232. The guide rail clamp 1231 is installed on the guide rail 113, and the two sides of the connecting block 1232 are respectively fixedly connected to the guide rail clamp 1231 and the sliding support seat 121. When the guide rail clamp 1231 clamps the guide rail 113, the sliding support seat 121 will be locked and cannot slide along the guide rail 113.

[0052] Obviously, in other embodiments, the locking assembly 123 may also use other methods to lock the sliding support seat 121, such as locking screws.

[0053] In this embodiment, each lifting mechanism 130 includes a driving member 131, a linear bearing 132, a guide rod 133 and a connecting plate 134. The driving member 131 is mounted on the sliding support seat 121 and is transmission-connected to the cutter seat 140, the linear bearing 132 is mounted on the sliding support seat 121 and extends along the second direction, and the guide rod 133 is slidably disposed in the linear bearing 132 and is fixedly connected to the cutter seat 140 through the connecting plate 134.

[0054] The driving member 131 can be a cylinder, which can be arranged on the side of the sliding support seat 121 facing away from the cutter seat 140, and its piston rod penetrates the sliding support seat 121 and is connected to the cutter seat 140, thereby driving the cutter seat 140 to move along the second direction. The linear bearing 132 and the guide rod 133 cooperate to limit and guide the cutter seat 140, thereby ensuring the stability and accuracy of the cutter seat 140 when moving along the second direction.

[0055] In addition, in this embodiment, a cleaning mechanism 160 is also provided on each cutter seat 140. When the cutter mechanism 150 cuts the electrode strip, some waste may remain on the surface of the conveyor roller, thereby causing the roller surface flatness of the conveyor roller to deteriorate. The cleaning mechanism 160 can clean the roller surface of the conveyor roller while the cutter mechanism 150 performs the cutting operation, so that the conveyor roller can always be kept clean.

[0056] The cleaning mechanism 160 can clean the conveying roller by blowing, sweeping, scraping, etc. Figure 4 In this embodiment, the cleaning mechanism 160 includes a base 161 and a scraper 162 disposed on the base 161. The base 161 is used to be fixedly connected to the cutter seat 140 and support the scraper 162. When the cutter mechanism 150 cuts the electrode strip, the scraper 162 abuts against the roller surface of the conveyor roller, so as the conveyor roller rotates, the waste material on the surface of the conveyor roller can be scraped off, achieving a better cleaning effect.

[0057] Specifically, the base 161 includes a mounting block 1611, a support block 1612 and a holding plate 1613. The mounting block 1611 can be fixedly connected to the cutter seat 140 by screws, the support block 1612 is fixed to the mounting block 1611, and the scraper 162 is clamped between the support block 1612 and the holding plate 1613. The scraper 162 can be formed of materials such as rubber and silicone, and is generally in a long strip shape, extending approximately along the first direction. Therefore, the area where the scraper 162 abuts against the conveying roller is larger, and the cleaning effect is better. In other embodiments, the scraper 162 can also be replaced by a brush, a roller brush, etc.

[0058] The above-mentioned cutting device 100 and pole piece production equipment, the two cutting mechanisms 150 can cut the two side edges of the pole piece in the width direction respectively. By sliding the two sliding support seats 121 along the first direction, the distance between the two cutting mechanisms 150 can be adjusted, so that it is suitable for cutting pole pieces of different widths. Moreover, the lifting mechanism 130 can adjust the cutting depth of the cutting mechanism 150 by driving the corresponding cutting seat 140 to move along the second direction, so that it can be suitable for cutting pole pieces of different thicknesses. It can be seen that, driven by the sliding mechanism 120 and the lifting mechanism 130, the cutting width and thickness of the two cutting mechanisms 150 can be adjusted, so that it is suitable for different types of pole pieces, so that the above-mentioned cutting device 100 and pole piece production equipment have a wider range of applications.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cutting device, characterized in that: include: Support mechanism; Two sliding mechanisms, each of which comprises a sliding support seat, and the two sliding support seats are slidably mounted on the support mechanism along a first direction; A lifting mechanism is disposed on each of the sliding support seats, wherein a cutter seat is disposed at a movable end of each of the lifting mechanisms, and the lifting mechanism can drive the corresponding cutter seat to move along a second direction perpendicular to the first direction; and A cutting mechanism is installed on each of the cutting seats.

2. The cutting device according to claim 1, characterized in that: The support mechanism includes a mounting plate extending along the first direction, a fixing plate fixed to both ends of the mounting plate, and a guide rail arranged on one side of the mounting plate and extending along the first direction. The sliding support seat is slidably mounted on the support mechanism by cooperating with the guide rail through a slider.

3. The cutting device according to claim 1, characterized in that: The support mechanism includes a scale extending along the first direction, and each of the sliding mechanisms also includes a pointer fixedly connected to the sliding support seat and pointing to the scale.

4. The cutting device according to claim 1, characterized in that: Each of the sliding mechanisms further comprises a locking assembly, and the locking assembly is capable of locking the sliding support seat to the support mechanism.

5. The cutting device according to claim 1, characterized in that: Each of the lifting mechanisms includes a driving member, a linear bearing, a guide rod and a connecting plate. The driving member is installed on the sliding support seat and is transmission-connected to the cutter seat. The linear bearing is installed on the sliding support seat and extends along the second direction. The guide rod can be slidably inserted into the linear bearing and is fixedly connected to the cutter seat through the connecting plate.

6. The cutting device according to claim 1, characterized in that: Each of the cutter mechanisms can be detachably mounted on the corresponding cutter seat.

7. The cutting device according to claim 6, characterized in that: The cutter mechanism comprises a protective cover, a cutter shaft and a circular cutter, wherein the cutter shaft is rotatably mounted on the protective cover, and the circular cutter is mounted on the cutter shaft and is coaxially arranged with the cutter shaft; Alternatively, the cutter mechanism comprises a fixed block and a flat cutter, wherein the fixed block is mounted on the cutter seat, and the flat cutter is mounted on one side of the fixed block.

8. The cutting device according to claim 1, characterized in that: Each of the cutter seats is also provided with a cleaning mechanism.

9. The cutting device according to claim 8, characterized in that: The cleaning mechanism comprises a base and a scraper arranged on the base.

10. A pole piece production device, characterized in that: Comprising a cutting device as described in any one of claims 1 to 9 above.

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