Calendering trimming device

Abstract

The utility model discloses a calendaring trimming device which is installed on a calendaring transfer roller and comprises two cutter mechanisms which are symmetrically installed above the roller surface of the transfer roller, each cutter mechanism comprises a cutter wheel used for cutting off the thickness of the edge part of a lithium foil material and a pressing wheel used for flattening the cut edge of the lithium foil material, the pressing wheel is positioned behind the cutter wheel; and the two scraper mechanisms are symmetrically arranged above the roller surface of the transfer roller, are respectively positioned behind the two cutter mechanisms, and are used for scraping the residual thickness part on the edge of the lithium foil material. According to the utility model, the problems that the edge is easy to wrinkle and cannot be scraped cleanly when the slitter edges on the two sides of the lithium foil material with increased thickness are removed are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium battery production, specifically relates to a calendering trimming device. BACKGROUND

[0002] At present, the lithium battery industry at home and abroad has good development prospect, and lithium ion battery has been widely used in portable electric appliances such as portable computer, video camera and mobile communication because of its unique performance advantage. At present, the large-capacity lithium ion battery developed has begun to be used in electric vehicles, and is expected to become one of the main power sources of electric vehicles in the 21st century, and will be applied in artificial satellites, aerospace and energy storage. With the shortage of energy and the pressure of the world's environmental protection, lithium batteries are widely used in the electric vehicle industry, especially the emergence of lithium iron phosphate material battery, which promotes the development and application of lithium battery industry.

[0003] In the battery production process, the lithium supplement process of lithium ion battery pole piece is the key technology to improve the capacity of lithium ion battery. The key of the lithium supplement process lies in calendering and film coating. In the calendering and film coating process, the lithium foil material is often removed by the scraper device after being extruded by the calendering device to obtain the required width of the lithium foil material, and then the required width of the lithium foil material is attached to the pole piece by the film coating device to form the lithium supplement pole piece.

[0004] However, the method of directly removing the uneven waste material on both sides of the lithium foil material after calendering by the scraper device is only suitable for the case that the lithium foil material after calendering is very thin (≤5 μm). When the lithium foil material after calendering is very thin (≤5 μm), the lithium foil material is soft and easy to break, and the scraper is always attached to the surface of the roller without damaging the surface of the roller. In the process of roller rotation, the edge of the lithium foil material is scraped off in the opposite direction, so that the uneven waste material on both sides is easily scraped off. When the thickness of the lithium foil material after calendering increases (5.5 μm or more), the edge of the lithium foil material is prone to wrinkle after the scraping of the scraper, and the scraping is not clean, so that the next process cannot be carried out. TECHNICAL FIELD

[0005] In order to overcome the problem that the method of directly removing the waste material on both sides of the lithium foil material after calendering by the scraper device in the prior art is not suitable for the lithium foil material with thick thickness (5.5 μm or more), the utility model provides a calendering trimming device.

[0006] The technical scheme of the utility model is as follows:

[0007] A calendering trimming device is installed on the transfer roller after calendering, comprising:

[0008] Two cutting knife mechanisms are symmetrically installed above the roller surface of the transfer roller, and the cutting knife mechanism comprises a cutter wheel for cutting off the edge thickness of the lithium foil material and a pressing wheel for flattening the cut edge of the lithium foil material, and the pressing wheel is located behind the cutter wheel.

[0009] Two scraping knife mechanisms are symmetrically installed above the roller surface of the transfer roller and are located behind the two cutting knife mechanisms respectively, and are used for scraping off the remaining thickness of the lithium foil material edge.

[0010] According to the calendering and trimming device, the cutter wheel of the cutting knife mechanism on the same side is flush with the inner side edge of the scraper of the cutting knife mechanism, and the cutter wheel is located in the middle part in front of the pressing wheel.

[0011] According to the calendering and trimming device, the cutter wheel and the pressing wheel are arranged with the same center.

[0012] According to the calendering and trimming device, the cutting knife mechanism further comprises a position adjusting mechanism for driving the cutter wheel and the pressing wheel away from or close to the position of the roller surface of the transfer roller, and the active end of the position adjusting mechanism is fixed with the cutter wheel and the pressing wheel.

[0013] Further, the position adjusting mechanism comprises a cutting knife fixing seat, a gas cylinder, a limiting block, a rotating shaft, a rotating plate and a rubber-coated follower roller, the gas cylinder is fixed on the cutting knife fixing seat, the limiting block is fixed on the lifting end of the gas cylinder, one end of the rotating plate is rotationally connected with the cutting knife fixing seat through the rotating shaft, the cutter wheel and the pressing wheel are fixed on the other end of the rotating plate, a limiting cavity is arranged in the limiting block, the fixed end of the rubber-coated follower roller is fixed with the rotating plate, the rotating end of the rubber-coated follower roller extends into the limiting cavity and can move in the limiting cavity, one side of the limiting cavity close to the rotating shaft is a limiting part, and the other side is a movable part.

[0014] When the gas cylinder lifts out of the limiting block, the limiting block drives the rotating plate to rotate along the rotating shaft through the rubber-coated follower roller, the rubber-coated follower roller moves from the movable part to the limiting part and is locked in the limiting part.

[0015] According to the calendering and trimming device, the front side of the cutter wheel is provided with an oil sticking box, a sponge is arranged in the oil sticking box, lubricating oil is stored in the sponge, and the sponge is in contact with the cutter wheel.

[0016] According to the calendering and trimming device, the scraping knife mechanism comprises a scraper for scraping off the remaining thickness of the lithium foil material edge and a dust removal and adsorption mechanism, the scraper is arranged above the roller surface of the transfer roller, and the dust removal and adsorption mechanism is arranged above the scraper.

[0017] The calendering and trimming device according to the above scheme further comprises:

[0018] The width adjusting mechanism is installed above the roller surface of the transfer roller, has two adjustable ends that can move left and right, one cutter mechanism and one scraper mechanism are fixed on one adjustable end, and the other cutter mechanism and the other scraper mechanism are fixed on the other adjustable end.

[0019] Further, the width adjusting mechanism comprises two symmetrical linear drive modules, the driving end of one linear drive module is fixed with one cutter mechanism and one scraper mechanism respectively, and the driving end of the other linear drive module is fixed with the other cutter mechanism and the other scraper mechanism respectively.

[0020] Further, the linear drive module comprises a fixed plate, a screw stepper motor, a guide rail, a sliding block and a fixed frame, the screw stepper motor and the guide rail are fixed on the fixed plate, the sliding block is threadedly sleeved on the screw rod of the screw stepper motor and is slidably connected with the guide rail, and the sliding block is further fixed with one cutter mechanism and one scraper mechanism through the fixed frame.

[0021] Compared with the prior art, the calendering and trimming device has the following beneficial effects:

[0022] 1. The calendering and trimming device provided by the calendering and trimming device increases a set of cutter mechanism on the basis of the scraper mechanism, the cutter mechanism is used for cutting part of the thickness of the edge of the lithium foil material, so that the subsequent scraper mechanism can play the original role, the pressure wheel of the cutter mechanism is used for flattening the burr generated by the cut edge of the lithium foil material, and finally the scraper mechanism is used for scraping the remaining thickness part of the edge of the lithium foil material, so that the whole waste edge on both sides of the lithium foil material can be scraped off, and the problem that the edge of the lithium foil material with increased thickness (more than 5.5 μm) is prone to wrinkles and cannot be scraped clean when the waste edge on both sides is removed can be solved effectively.

[0023] 2. The calendering and trimming device has simple and exquisite overall structure, and can achieve complete removal of the waste material on both sides of the lithium foil material without burrs and the like.

[0024] 3. The cutter mechanism is provided with a position adjusting mechanism, so that the cutter wheel and the pressure wheel are away from the roller surface of the transfer roller before the width adjusting mechanism adjusts the distance between the two cutter mechanisms and the distance between the two scraper mechanisms, and the cutter wheel is prevented from scratching the roller surface of the transfer roller. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0026] Figure 1 The structure diagram of the calendering and trimming device installed on the transfer roller after calendering in an embodiment of the present application;

[0027] Figure 2 The structure diagram of the calendering and trimming device in an embodiment of the present application;

[0028] Figure 3 The structure diagram of the cutter mechanism in an embodiment of the present application;

[0029] Figure 4 The structure diagram of the cutter mechanism in an embodiment of the present application from another perspective after removing the cutter fixing seat;

[0030] Figure 5 The explosion diagram between the first fixing seat and the first guide adjusting block in an embodiment of the present application;

[0031] Figure 6 The explosion diagram between the first fixing seat and the first guide adjusting block from another perspective in an embodiment of the present application;

[0032] Figure 7 The explosion diagram between the second fixing seat and the second guide adjusting block in an embodiment of the present application;

[0033] Figure 8 The explosion diagram between the second fixing seat and the second guide adjusting block from another perspective in an embodiment of the present application.

[0034] In the drawings,

[0035] 1, cutter mechanism; 11, cutter wheel; 12, pressure wheel; 13, position adjusting mechanism; 131, cutter fixing seat; 132, air cylinder; 133, limiting block; 1331, limiting cavity; 13311, limiting part; 13312, movable part; 134, rotating shaft; 135, rotating plate; 136, rubber-coated follow-up roller; 137, first fixing seat; 1371, first connecting part; 138, first guide adjusting block; 1381, first connecting sliding groove; 1382, first locking hole; 1383, second locking hole; 139, second fixing seat; 1391, second connecting part; 140, second guide adjusting block; 1401, second connecting sliding groove; 1402, third locking hole; 1403, fourth locking hole; 14, oil sticking box; 2, scraper mechanism; 21, scraper; 22, dust removal and adsorption mechanism; 3, width adjusting mechanism; 31, straight line driving module; 311, fixed plate; 312, screw stepping motor; 313, guide rail; 314, sliding block; 315, fixed frame; 4, transfer roller. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is declared at the same time that the following described examples are only used to explain the utility model and do not limit the utility model.

[0037] It should be noted that the terms "mounting", "setting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise explicitly limited. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly placed when the product of the application is used, which is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, so it cannot be understood as a limitation on the application. The terms "first", "second", "third", "fourth" are only used for the purpose of convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features.

[0038] Please refer toFigure 1 、 Figure 2 The present embodiment provides a calendering trimming device, which is installed on the transfer roller 4 after calendering and used to remove the uneven waste material on both sides of the calendered lithium foil material. The calendering trimming device comprises two symmetrically installed cutting knife mechanisms 1 above the roller surface of the transfer roller 4, two symmetrically installed scraping knife mechanisms 2 above the roller surface of the transfer roller 4, and a width adjusting mechanism 3 installed above the roller surface of the transfer roller 4, and the two scraping knife mechanisms 2 are respectively located behind the two cutting knife mechanisms 1. The cutting knife mechanism 1 comprises a cutter wheel 11 used to cut the edge portion thickness of the lithium foil material, a pressing wheel 12 used to flatten the cut edge of the lithium foil material, and a position adjusting mechanism 13 used to drive the cutter wheel 11 and the pressing wheel 12 away from or close to the roller surface of the transfer roller 4, the active end of the position adjusting mechanism 13 is fixed with the cutter wheel 11 and the pressing wheel 12, and the pressing wheel 12 is located behind the cutter wheel 11. The scraping knife mechanism 2 is used to scrape the remaining thickness portion of the edge of the lithium foil material. The width adjusting mechanism 3 has two adjustable ends that can move left and right, one cutting knife mechanism 1 and one scraping knife mechanism 2 are fixed on one adjustable end, and the other cutting knife mechanism 1 and the other scraping knife mechanism 2 are fixed on the other adjustable end. The width adjusting mechanism 3 can adjust the distance between the two cutting knife mechanisms 1 and the two scraping knife mechanisms 2 through the two adjustable ends according to the width of the required lithium foil material.

[0039] Working principle:

[0040] When the transfer roller 4 rotates, it drives the calendered lithium foil material to be transported on its surface. The position adjusting mechanism 13 of the two cutting knife mechanisms 1 drives the cutter wheel 11 and the pressing wheel 12 to approach the roller surface of the transfer roller 4. The lithium foil material passes through the cutter wheel 11 of the two scraping knife mechanisms 2 first, the cutter wheel 11 cuts the edge portion thickness of the lithium foil material (for example, the overall thickness of the lithium foil material is 10 μm, and the cutter wheel 11 cuts 9 μm thickness on the upper part of the edge of the lithium foil material), then the pressing wheel 12 of the two scraping knife mechanisms 2 flattens the burr generated by the cut edge of the lithium foil material, and finally the two scraping knife mechanisms 2 scrape the remaining thickness portion of the edge of the lithium foil material (the scraping knife mechanism 2 scrapes 1 μm thickness on the lower part of the edge of the lithium foil material), and the entire waste edge on both sides of the lithium foil material is scraped off, thereby obtaining the required width of the lithium foil material.

[0041] When it is necessary to adjust the distance between the two cutting knife mechanisms 1 and the two scraping knife mechanisms 2, the position adjusting mechanism 13 of the two cutting knife mechanisms 1 first drives the cutter wheel 11 and the pressing wheel 12 away from the roller surface of the transfer roller 4, and then the width adjusting mechanism 3 adjusts the distance between the two cutting knife mechanisms 1 and the two scraping knife mechanisms 2 through the two adjustable ends according to the width of the required lithium foil material. In this way, the cutter wheel 11 can avoid scratching the roller surface of the transfer roller 4 when adjusting the position of the cutting knife mechanism 1 and the scraping knife mechanism 2 each time.

[0042] The calendering and trimming device provided by the utility model, on the basis of the scraper mechanism 2, adds a set of cutter mechanism 1, the cutter mechanism 1 is used for cutting the partial thickness of the edge of the lithium foil material, so that the scraper mechanism 2 can play the original role, then the pressure wheel 12 of the cutter mechanism 1 is used for flattening the burr generated by the cut edge of the lithium foil material, finally the scraper mechanism 2 is used for scraping the remaining thickness part of the edge of the lithium foil material, and the whole waste edge on both sides of the lithium foil material is scraped down, so that the problem that the edge is easy to wrinkle and difficult to scrape clean when the lithium foil material with increased thickness (more than 5.5 μm) is removed from both sides can be effectively solved; the whole structure is simple, easy to operate and exquisite, the waste material on both sides of the lithium foil material can be completely removed, and the burr phenomenon is avoided.

[0043] In one embodiment, the cutter wheel 11 of the cutter mechanism 1 on the same side is flush with the inner side edge of the scraper 21 of the cutter mechanism 1, and the cutter wheel 11 is located in the front middle part of the pressure wheel 12. The cutter wheel 11 flush with the inner side edge of the scraper 21 can ensure that the transition between the lithium foil material after the edge part is cut by the cutter wheel 11 and the remaining thickness part is scraped by the scraper 21 is smoother, and the waste or defects caused by the uneven edge are reduced. The cutter wheel 11 located in the front middle part of the pressure wheel 12 can ensure that the pressure wheel 12 can flatten the burr generated by the cut edge of the lithium foil material.

[0044] In one embodiment, the cutter wheel 11 and the pressure wheel 12 of the cutter mechanism 1 are arranged with the same center, which can ensure that the pressure and cutting effect of the cutter wheel 11 and the pressure wheel 12 on the lithium foil material are more uniform, and the material deformation or damage phenomenon caused by uneven pressure is avoided.

[0045] Please refer to Figure 3 、 Figure 4In one embodiment, the position adjusting mechanism 13 comprises a cutter fixing seat 131, a cylinder 132, a limiting block 133, a rotating shaft 134, a rotating plate 135, and a rubber-coated follower roller 136. The cylinder 132 is fixed on the cutter fixing seat 131, the limiting block 133 is fixed on the lifting end of the cylinder 132, one end of the rotating plate 135 is rotationally connected to the cutter fixing seat 131 through the rotating shaft 134, the cutter wheel 11 and the pressure wheel 12 are fixed on the other end of the rotating plate 135, a limiting cavity 1331 is arranged in the limiting block 133, the fixed end of the rubber-coated follower roller 136 is fixed to the rotating plate 135, the rotating end of the rubber-coated follower roller 136 extends into the limiting cavity 1331 and can move in the limiting cavity 1331. The limiting cavity 1331 is formed by an arc surface and two mutually perpendicular planes, and the side of the limiting cavity 1331 close to the rotating shaft 134 is a limiting portion 13311, and the other side is a movable portion 13312. When the cylinder 132 lifts out of the limiting block 133, the limiting block 133 drives the rotating plate 135 to rotate downward along the rotating shaft 134 through the rubber-coated follower roller 136, the rotating plate 135 in turn drives the cutter wheel 11 and the pressure wheel 12 to approach the roller surface of the transfer roller 4, and with the movement of the limiting block 133, the rubber-coated follower roller 136 moves from the movable portion 13312 to the limiting portion 13311 of the limiting cavity 1331 and is locked in the limiting portion 13311. At this time, the cutter wheel 11 and the pressure wheel 12 reach the tangent position with the roller surface of the transfer roller 4. Since the rubber-coated follower roller 136 is locked in the limiting portion 13311 at this time, its position is limited by an arc surface and a plane. When the cylinder 132 retracts into the limiting block 133, the limiting block 133 drives the rotating plate 135 to rotate upward along the rotating shaft 134 through the rubber-coated follower roller 136, the rotating plate 135 in turn drives the cutter wheel 11 and the pressure wheel 12 to move away from the roller surface of the transfer roller 4, and with the movement of the limiting block 133, the rubber-coated follower roller 136 moves from the limiting portion 13311 to the movable portion 13312 of the limiting cavity 1331.

[0046] The above-mentioned position adjusting mechanism 13 is compact in structure, ingenious in cooperation, and can make the cutter wheel 11 and the pressure wheel 12 reach the tangent position with the roller surface of the transfer roller 4 after the action of the cylinder 132, so as to fix them and ensure that there is no displacement of the cutter wheel 11 and the pressure wheel 12 during the cutting and pressing processes, and there is no gap during the lifting of the entire cylinder 132.

[0047] Please refer to Figure 3 、 Figure 5 、 Figure 6 In one embodiment, the cutter wheel 11 is fixed on the rotating plate 135 through a first fixing seat 137, the first fixing seat 137 is fixed on the rotating plate 135 through a first guide adjusting block 138, and the distance between the cutter wheel 11 and the roller surface of the transfer roller 4 can be adjusted through the first guide adjusting block 138, so as to control the cutting thickness according to the actual needs on site and improve the versatility of the equipment.

[0048] Specifically, one end of the first fixed seat 137 close to the first guide adjusting block 138 is provided with a first connecting part 1371, the first guide adjusting block 138 close to the first fixed seat 137 is provided with a first connecting sliding groove 1381, the first connecting part 1371 is inserted into the first connecting sliding groove 1381 and can slide along the first connecting sliding groove 1381, the end of the first guide adjusting block 138 away from the rotating plate 135 is provided with a plurality of first locking holes 1382 in communication with the first connecting sliding groove 1381, the first locking holes 1382 cooperate with the first screw to lock the first connecting part 1371 in the first connecting sliding groove 1381; the end of the first guide adjusting block 138 away from the first fixed seat 137 is provided with a plurality of second locking holes 1383 in communication with the first connecting sliding groove 1381, the second locking holes 1383 cooperate with the second screw to limit the insertion depth of the first connecting part 1371. By adjusting the position of the first fixed seat 137 on the first guide adjusting block 138, the distance between the cutter wheel 11 and the roll surface of the transfer roller 4 can be accurately controlled, so that the device can adapt to lithium foil materials of different thicknesses, the thickness of the cut material can be controlled according to the actual needs on site, thereby improving the versatility and adaptability of the equipment.

[0049] Please refer to Figure 3 、 Figure 7 、 Figure 8 In one embodiment, the press wheel 12 is fixed on the rotating plate 135 through the second fixed seat 139, the second fixed seat 139 is fixed on the rotating plate 135 through the second guide adjusting block 140, and the distance between the press wheel 12 and the roll surface of the transfer roller 4 can be adjusted through the second guide adjusting block 140, so as to control the material pressing height according to the actual needs on site and improve the versatility of the equipment.

[0050] Specifically, one end of the second fixed seat 139 close to the second guide adjusting block 140 is provided with a second connecting part 1391, and one end of the second guide adjusting block 140 close to the second fixed seat 139 is provided with a second connecting sliding groove 1401. The second connecting part 1391 is inserted into the second connecting sliding groove 1401 and can slide along the second connecting sliding groove 1401. The end of the second guide adjusting block 140 away from the rotating plate 135 is provided with a plurality of third locking holes 1402 in communication with the second connecting sliding groove 1401. The third locking holes 1402 cooperate with the third screws to lock the second connecting part 1391 in the second connecting sliding groove 1401. The end of the second guide adjusting block 140 away from the second fixed seat 139 is provided with a plurality of fourth locking holes 1403 in communication with the second connecting sliding groove 1401. The fourth locking holes 1403 cooperate with the fourth screws to limit the insertion depth of the second connecting part 1391. By adjusting the position of the second fixed seat 139 on the second guide adjusting block 140, the distance between the pressure roller 12 and the surface of the transfer roller 4 can be accurately controlled, so that the device can adapt to lithium foil materials of different thicknesses, and the material height can be controlled according to the actual needs on site, thereby improving the versatility and adaptability of the equipment.

[0051] Referring to Figures 3 to 6 In one embodiment, the front side of the cutter wheel 11 is provided with an oil sticking box 14, which is fixed on the first fixed seat 137. The oil sticking box 14 is provided with a sponge inside, which stores lubricating oil. The sponge is in contact with the cutter wheel 11, so that the surface of the cutter wheel 11 can be coated with a layer of lubricating oil film. The lubricating oil film on the surface of the cutter wheel 11 not only helps to prevent the lithium foil material from sticking, but also reduces the friction heat and wear during cutting, helps to maintain the sharpness and cutting accuracy of the cutter wheel 11, and thus improves the cutting efficiency and quality.

[0052] Referring to Figure 2 In one embodiment, the scraper mechanism 2 includes a scraper 21 for scraping the remaining thickness part of the lithium foil material edge and a dust removal and adsorption mechanism 22. The scraper 21 is in contact with the surface of the transfer roller 4, and the dust removal and adsorption mechanism 22 is arranged above the scraper 21. When the scraper 21 scrapes the remaining thickness part of the lithium foil material edge, a certain amount of small particles such as debris and dust will be generated. If these particles remain on the equipment or the lithium foil material, they will not only affect the subsequent processing quality, but also may cause wear or blockage of the equipment. By arranging the dust removal and adsorption mechanism 22 above the scraper 21, these debris and dust can be effectively removed in time, keeping the equipment and lithium foil material clean.

[0053] In one embodiment, in order to avoid damage to the surface of the transfer roller 4 during the scraping process of the scraper 21, the scraper 21 is an ink knife and is always in contact with the surface of the transfer roller 4. During the rotation of the transfer roller 4, the scraper 21 scrapes the waste material on the edge of the lithium foil material in the opposite direction, which makes it easy to scrape the waste material on the edge of the lithium foil material.

[0054] Referring to Figure 2 In one embodiment, the width adjustment mechanism 3 comprises two symmetrical linear drive modules 31, the driving end of one linear drive module 31 is fixed with one cutter mechanism 1 and one scraper mechanism 2 respectively, and the driving end of the other linear drive module 31 is fixed with the other cutter mechanism 1 and the other scraper mechanism 2 respectively.

[0055] Specifically, the linear drive module 31 comprises a fixed plate 311, a screw stepper motor 312, a guide rail 313, a sliding block 314 and a fixed frame 315, the screw stepper motor 312 and the guide rail 313 are fixed on the fixed plate 311, the sliding block 314 is threadedly sleeved on the screw rod of the screw stepper motor 312 and is slidably connected with the guide rail 313, and the sliding block 314 is further fixed with one cutter mechanism 1 and one scraper mechanism 2 through the fixed frame 315. The linear drive module 31 drives the sliding block 314 to move along the guide rail 313 accurately through the screw stepper motor 312, so as to realize the accurate adjustment of the positions of the cutter mechanism 1 and the scraper mechanism 2, and to ensure that the distance between the two cutter mechanisms 1 and the distance between the two scraper mechanisms 2 can be accurately adjusted according to the width of the required lithium foil material, thereby meeting the requirement of high-precision machining.

[0056] It should be understood that the above description can be improved or changed by those skilled in the art, and all these improvements and changes shall fall within the protection scope of the appended claims of the utility model.

[0057] The above has exemplarily described the utility model patent in combination with the drawings, and obviously the implementation of the utility model patent is not limited by the above-mentioned manner, as long as various improvements are made by adopting the method concept and technical scheme of the utility model patent, or the concept and technical scheme of the utility model patent is directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. A calender edging device characterized by, It is installed on the transfer roller after calendering, comprising: Two cutting knife mechanisms are symmetrically installed above the roller surface of the transfer roller, the cutting knife mechanism comprises a cutter wheel for cutting off the edge thickness of lithium foil material and a pressing wheel for flattening the cut edge of lithium foil material, and the pressing wheel is located behind the cutter wheel; Two scraper mechanisms are symmetrically installed above the roller surface of the transfer roller and are respectively located behind the two cutting knife mechanisms for scraping off the remaining thickness of the edge of lithium foil material.

2. The calender skiving apparatus of claim 1, wherein The inner side edge of the cutter wheel of the cutting knife mechanism on the same side is flush with the cutter of the cutting knife mechanism, and the cutter wheel is located in the middle part in front of the pressing wheel.

3. The calender skiving apparatus of claim 1, wherein, The cutter wheel and the pressing wheel are arranged with the same center.

4. The calender skiving apparatus of claim 1, wherein, The cutting knife mechanism further comprises a position adjusting mechanism for driving the cutter wheel and the pressing wheel away from or close to the roller surface of the transfer roller, and the active end of the position adjusting mechanism is fixed with the cutter wheel and the pressing wheel.

5. The calender skiving apparatus of claim 4, wherein, The position adjusting mechanism comprises a cutting knife fixing seat, a gas cylinder, a limiting block, a rotating shaft, a rotating plate and a rubber-coated follower roller, the gas cylinder is fixed on the cutting knife fixing seat, the limiting block is fixed on the lifting end of the gas cylinder, one end of the rotating plate is rotationally connected with the cutting knife fixing seat through the rotating shaft, the cutter wheel and the pressing wheel are fixed on the other end of the rotating plate, the limiting block is provided with a limiting cavity, the fixed end of the rubber-coated follower roller is fixed with the rotating plate, the rotating end of the rubber-coated follower roller extends into the limiting cavity and can move in the limiting cavity, and one side of the limiting cavity close to the rotating shaft is a limiting part and the other side is a movable part. When the gas cylinder lifts out of the limiting block, the limiting block drives the rotating plate to rotate along the rotating shaft through the rubber-coated follower roller, the rubber-coated follower roller moves from the movable part to the limiting part and is locked in the limiting part.

6. The calender skiving apparatus of claim 1, wherein, The front side of the cutter wheel is provided with an oil sticking box, the oil sticking box is provided with a sponge, the sponge stores lubricating oil, and the sponge is in contact with the cutter wheel.

7. The calender skiving apparatus of claim 1, wherein The scraper mechanism comprises a scraper for scraping off the remaining thickness of the edge of lithium foil material and a dust removal and adsorption mechanism, the scraper is in contact with the roller surface of the transfer roller, and the dust removal and adsorption mechanism is arranged above the scraper.

8. The calender skiving apparatus of claim 1, wherein, Further comprising: A width adjusting mechanism is installed above the roller surface of the transfer roller and has two adjustable ends that can move left and right, one cutting knife mechanism and one scraper mechanism are fixed on one adjustable end, and the other cutting knife mechanism and the other scraper mechanism are fixed on the other adjustable end.

9. The calender skiving apparatus of claim 8, wherein, The width adjusting mechanism comprises two symmetrically arranged linear drive modules, the driving end of one linear drive module is fixed with one cutting knife mechanism and one scraper mechanism, and the driving end of the other linear drive module is fixed with the other cutting knife mechanism and the other scraper mechanism.

10. The calender skiving apparatus of claim 9, wherein, The straight line driving module comprises a fixed plate, a screw stepper motor, a guide rail, a sliding block and a fixed frame, the screw stepper motor and the guide rail are fixed on the fixed plate, the sliding block is threadedly sleeved on a screw rod of the screw stepper motor and is in sliding connection with the guide rail, and the sliding block is further fixed with one of the cutter mechanisms and one of the scraper mechanisms through the fixed frame.

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