Cutting device and feeding apparatus

Abstract

The application relates to a cutting device and a feeding equipment. The cutting device comprises a swing arm connecting frame, a cutting mechanism arranged rotatably on the swing arm connecting frame, and a rotating mechanism comprising a first rotating driving element and a second rotating driving element. The first rotating driving element is used for driving the swing arm connecting frame to rotate, and the second rotating driving element is used for driving the cutting mechanism to rotate. The cutting mechanism is used for cutting a material belt into a residual section and a joint section. The swing arm connecting frame is driven to rotate by the first rotating driving element, and / or the cutting mechanism is driven to rotate by the second rotating driving element, so that the cutting mechanism winds the joint section. The feeding equipment comprises a feeding device used for outputting the material belt, a first material roll used for receiving the material belt output by the feeding device, and a second material roll arranged at intervals from the first material roll. The cutting device and the feeding equipment can realize automatic cutting and automatic joint of the material belt, and are beneficial to improving the processing continuity and the processing efficiency of the material belt.

Description

Technical Field

[0001] This application relates to the field of power battery processing equipment technology, and in particular to a cutting device and a feeding device. Background Technology

[0002] In the lithium battery manufacturing process, the length of a single roll of material (such as separator) is limited, and a new roll needs to be connected when the material is exhausted. Therefore, the old material needs to be cut and joined with the material of the new roll. When cutting the material, it is necessary to ensure that the cut is perpendicular as much as possible to avoid the wrinkles caused by the beveled cut.

[0003] Currently, most material strips are cut manually, which often results in wrinkles at the cut, poor cut quality, and low efficiency, which is not conducive to ensuring the cutting quality and processing efficiency of subsequent material strips. Utility Model Content

[0004] Therefore, it is necessary to provide a cutting device and feeding equipment to address the problems of poor quality and low processing efficiency of manual cutting of existing material strips.

[0005] A cutting device for cutting material strip, the cutting device comprising: a swing arm connecting frame; a cutting mechanism rotatably disposed on the swing arm connecting frame and used for cutting and / or winding the material strip; and a rotating mechanism connected to the swing arm connecting frame and used for driving the swing arm connecting frame to rotate, and / or connected to the cutting mechanism and used for driving the cutting mechanism to rotate.

[0006] The aforementioned cutting device can cut the already fed material strip into residual segments and joint segments using a cutting mechanism. Then, a rotating mechanism drives the cutting mechanism to rotate to wind up the joint segments and transport them to the position where they are spliced ​​and fixed with the new material roll. This enables automatic cutting and splicing of the material strip, which helps improve the continuity and efficiency of material strip processing. At the same time, it can drive the swing arm connecting frame and the cutting mechanism to rotate synchronously to significantly adjust the angle of the cutting mechanism, and it can also drive the cutting mechanism to rotate relative to the swing arm connecting frame to slightly adjust the angle of the cutting mechanism. The angle adjustment of the cutting mechanism is more flexible and practical, which helps to further improve the continuity and efficiency of material strip processing.

[0007] In some embodiments, the rotating mechanism includes a first rotating drive member and a second rotating drive member. The first rotating drive member is connected to the swing arm connecting frame and is used to drive the swing arm connecting frame to rotate. The second rotating drive member is connected to the cutting mechanism and is used to drive the cutting mechanism to rotate.

[0008] In some embodiments, the cutting mechanism cuts the strip into residual segments and joint segments, drives the swing arm connecting frame to rotate via the first rotary drive member, and / or drives the cutting mechanism to rotate via the second rotary drive member, so that the cutting mechanism wraps around the joint segments.

[0009] In some embodiments, the cutting mechanism includes a roller, a first cutter, a second cutter, and a mounting member. The roller includes a fixed portion and a first portion and a second portion disposed on the fixed portion. The first portion and the second portion are spaced apart along a first direction to form a material passage for the material strip to pass through. The second cutter is disposed on the side of the second portion facing the first portion. The mounting member is movably disposed along the first direction on the side of the first portion facing the second portion. The first cutter is fixed to the mounting member.

[0010] In some embodiments, the first portion and the second portion are configured as two separate and mirror-symmetrical semi-cylinders, and the axes of the two semi-cylinders are both in a second direction intersecting the first direction; at least one of the first cutter and the second cutter is configured as a strip-shaped tooth structure extending along the second direction.

[0011] In some embodiments, the cutting mechanism further includes a first driving component, which includes a first moving driving member and a first movable member. The first movable member is fixedly connected to the mounting member. Under the drive of the first moving driving member, the first movable member moves along the first direction and drives the first cutter to move along the first direction.

[0012] In some embodiments, the cutting mechanism further includes a first reset component, which is spaced apart from the first drive component in the second direction; the first reset component includes a first connecting rod and a first elastic member, the first connecting rod having a free end and a fixed end disposed opposite to each other along the first direction, the fixed end being fixedly connected to the mounting member; the first elastic member is disposed between the free end and the fixed end and is used to provide a restoring force for the first cutter to reset in the first direction.

[0013] In some embodiments, the cutting mechanism further includes a first guide assembly, which is spaced apart from the first drive assembly in the second direction; the first guide assembly includes a first guide rod and a first bearing, the first bearing is fixed to the first portion, the first guide rod is movably inserted through the first bearing in the first direction, and the first guide rod is fixedly connected to the mounting member; when the first cutter moves in the first direction, the first guide rod moves relative to the first bearing in the first direction.

[0014] In some embodiments, the cutting device further includes a clamping mechanism for positioning the strip, the clamping mechanism and the cutting mechanism being distributed at intervals along a third direction, the third direction intersecting the first direction and the second direction in pairs but not coplanar.

[0015] In some embodiments, the clamping mechanism includes a pressure plate for pressing the strip, the pressure plate being configured as a strip structure extending along the second direction.

[0016] In some embodiments, the clamping mechanism further includes a second moving component, a second resetting component, and a second guiding component connected to the pressure plate. The second moving component, the second resetting component, and the second guiding component are spaced apart along the second direction. The second moving component is used to drive the pressure plate to move along the first direction, the second resetting component is used to provide a restoring force for the pressure plate to reset in the first direction, and the second guiding component is used to provide a guiding effect for the movement of the pressure plate in the first direction.

[0017] A feeding device includes: a feeding device for outputting the material strip; a first roll for receiving the material strip output by the feeding device; a second roll spaced apart from the first roll; and a cutting device, wherein the cutting mechanism is used to cut the material strip between the feeding device and the first roll into a residual segment and a joint segment, and the rotating mechanism drives the cutting mechanism to rotate and conveys the joint segment to the second roll.

[0018] The aforementioned feeding equipment can use a cutting mechanism to cut the already fed material strip into residual segments and joint segments. Then, a rotating mechanism drives the cutting mechanism to rotate to wind the joint segments and transport them to the position where they are spliced ​​and fixed with the new roll of material strip. This enables automatic cutting and splicing of the material strip, which helps to improve the continuity and efficiency of material strip processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the feeding device before the material strip is cut in some embodiments of this application.

[0020] Figure 2 This is a schematic diagram of the material strip after it has been cut in the feeding device in some embodiments of this application.

[0021] Figure 3 This is an isometric view of the cutting device in some embodiments of this application.

[0022] Figure 4 for Figure 3 The front view of the cutting device shown.

[0023] Figure 5 for Figure 4 A schematic diagram of the internal structure of the cutting mechanism in the cutting device shown.

[0024] Figure 6 for Figure 5 The EE section view of the cutting mechanism shown.

[0025] Figure 7 for Figure 5 The HH section view of the cutting mechanism shown.

[0026] Figure 8 for Figure 5 The cutting mechanism shown is a cross-sectional view of the GG plane.

[0027] Figure label:

[0028] 10. Cutting device; 20. Material strip; 21. Residual section; 22. Joining section; 30. Feeding device; 40. First roll; 50. Second roll;

[0029] 100. Swing arm connecting frame;

[0030] 200. Cutting mechanism; 210. Roller body; 210a. Material passage; 211. Fixing part; 212. First section; 213. Second section; 220. First cutter; 230. Second cutter; 240. Mounting component; 250. First drive assembly; 251. First air blowing channel; 252. First moving part; 260. First reset assembly; 261. First connecting rod; 262. First elastic element; 270. First guide assembly; 271. First guide rod; 272. First bearing;

[0031] 300. Rotating mechanism; 310. First rotating drive component; 320. Second rotating drive component;

[0032] 400, clamping mechanism; 410, pressure plate; 420, second moving component; 421, second air blowing channel; 422, second movable component; 430, second reset component; 431, second connecting rod; 432, second elastic component; 440, second guide component; 441, second guide rod; 442, second bearing. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, the terms "initial," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] Please refer to Figures 1 to 3 In one embodiment, the cutting device 10 is used to cut the strip 20. The cutting device 10 includes a swing arm connecting frame 100, a cutting mechanism 200, and a rotating mechanism 300. The cutting mechanism 200 is rotatably mounted on the swing arm connecting frame 100 and is used to cut and / or wind the strip 20. The rotating mechanism 300 is connected to the swing arm connecting frame 100 and is used to drive the swing arm connecting frame 100 to rotate, and / or is connected to the cutting mechanism 200 and is used to drive the cutting mechanism 200 to rotate.

[0040] It should be noted that the material strip 20 is generally stored in a wound state before use. When using it, the wound material strip 20 is simply unwound. Since the length of a single roll of material strip 20 is limited, a new roll needs to be connected when the material strip 20 on the old roll is exhausted. At this time, the material strip 20 that has already been fed needs to be cut and separated from the old material strip 20, that is, the material strip 20 that has already been fed is cut into a residual section 21 and a joint section 22. The residual section 21 is left as waste on the old material roll, and the joint section 22 is spliced ​​and fixed to the material strip 20 of the new material roll. Optionally, the material strip 20 is the separator of the battery. The separator is located between the positive electrode and the negative electrode of the battery to isolate the positive electrode and the negative electrode to prevent them from directly contacting and short-circuiting.

[0041] Here, after the cutting mechanism 200 cuts the already fed material strip 20 into residual segment 21 and joint segment 22, the first rotary drive 310 drives the swing arm connecting frame 100 to rotate (at this time, the cutting mechanism 200 rotates synchronously with the swing arm connecting frame 100), and / or the second rotary drive 320 drives the cutting mechanism 200 to rotate (at this time, the swing arm connecting frame 100 remains stationary), so that the cutting mechanism 200 winds up the joint segment 22 and conveys the joint segment 22 to the position where it is spliced ​​and fixed with the new material roll of material strip 20.

[0042] The aforementioned cutting device 10 can use the cutting mechanism 200 to cut the already fed material strip 20 into residual segments 21 and joint segments 22. Then, the rotating mechanism 300 drives the cutting mechanism 200 to rotate to wind the joint segment 22 and transport the joint segment 22 to the position where it is spliced ​​and fixed with the new material roll of material strip 20. This enables automatic cutting and splicing of the material strip 20, which helps to improve the processing continuity and efficiency of the material strip 20. At the same time, it can drive the swing arm connecting frame 100 and the cutting mechanism 200 to rotate synchronously to adjust the angle of the cutting mechanism 200 significantly, and it can also drive the cutting mechanism 200 to rotate relative to the swing arm connecting frame 100 to adjust the angle of the cutting mechanism 200 slightly. The angle adjustment of the cutting mechanism 200 is more flexible and more practical, which helps to further improve the processing continuity and efficiency of the material strip 20.

[0043] In the embodiments of this application, the swing arm connecting frame 100 can adopt various structural forms. For example, the swing arm connecting frame 100 is an integral strip structure with good integrity and high mechanical strength.

[0044] In some embodiments of this application, the cutting mechanism 200 is rotatably mounted on the swing arm connecting frame 100, which can be achieved in various ways. For example, an avoidance groove is provided at one end of the swing arm connecting frame 100, the cutting mechanism 200 passes through the avoidance groove and can rotate relative to the avoidance groove, so that the cutting mechanism 200 is rotatably mounted at one end of the swing arm connecting frame 100.

[0045] Further, please refer to Figures 1 to 3 The rotating mechanism 300 includes a first rotating drive 310 and a second rotating drive 320. The first rotating drive 310 is connected to the swing arm connecting frame 100 and is used to drive the swing arm connecting frame 100 to rotate. The second rotating drive 320 is connected to the cutting mechanism 200 and is used to drive the cutting mechanism 200 to rotate.

[0046] The beneficial effects here are: the first rotary drive 310 can drive the swing arm connecting frame 100 and the cutting mechanism 200 to rotate synchronously to adjust the angle of the cutting mechanism 200 by a large margin, and the second rotary drive 320 can drive the cutting mechanism 200 to rotate relative to the swing arm connecting frame 100 to adjust the angle of the cutting mechanism 200 by a small margin, making the angle adjustment of the cutting mechanism 200 more flexible.

[0047] In some embodiments of this application, the first rotary drive 310 is connected to the swing arm connecting frame 100, which can be a direct connection or an indirect connection. For example, the power output shaft of the first rotary drive 310 is directly and fixedly connected to the swing arm connecting frame 100, and the first rotary drive 310 drives the swing arm connecting frame 100 to rotate. Optionally, the first rotary drive 310 is a motor, a cylinder, or other drive structure with a power output shaft.

[0048] In some embodiments of this application, the second rotary drive 320 is connected to the cutting mechanism 200, which can be a direct or indirect connection. For example, the second rotary drive 320 and the cutting mechanism 200 are indirectly connected through a transmission structure. The transmission structure includes a driving wheel, a driven wheel, and a synchronous belt. The synchronous belt is sleeved on the outer circumference of the driving wheel and the driven wheel. The driven wheel is connected to the cutting mechanism 200, and the driving wheel is fixedly connected to the power output shaft of the second rotary drive 320. The second rotary drive 320 drives the driving wheel to rotate, and the synchronous belt synchronously drives the driven wheel to rotate, thereby driving the cutting mechanism 200 to rotate. Optionally, the second rotary drive 320 is a motor, a cylinder, or other drive structure with a power output shaft.

[0049] Furthermore, please refer to Figures 1 to 3 The cutting mechanism 200 cuts the strip 20 into a residual segment 21 and a joining segment 22. The first rotary drive 310 drives the swing arm connecting frame 100 to rotate, and / or the second rotary drive 320 drives the cutting mechanism 200 to rotate, so that the cutting mechanism 200 can wrap the joining segment 22.

[0050] The beneficial effects here are: the cutting mechanism 200 can cut the already fed material strip 20 into residual segments 21 and joint segments 22, and the rotating mechanism 300 drives the cutting mechanism 200 to rotate to wind the joint segments 22 and transport the joint segments 22 to the position to be spliced ​​and fixed with the new material roll of material strip 20. This can realize automatic cutting and automatic splicing of material strip 20, which is conducive to improving the processing continuity and processing efficiency of material strip 20.

[0051] For details, please refer to Figures 3 to 5 The cutting mechanism 200 includes a roller body 210, a first cutter 220, a second cutter 230, and a mounting member 240. The roller body 210 includes a fixed part 211 and a first part 212 and a second part 213 disposed on the fixed part 211. The first part 212 and the second part 213 are spaced apart along a first direction and form a material passage 210a through which the feeding belt 20 passes. The second cutter 230 is disposed on the side of the second part 213 facing the first part 212. The mounting member 240 is movably disposed on the side of the first part 212 facing the second part 213 along the first direction. The first cutter 220 is fixed to the mounting member 240.

[0052] It should be noted that the first direction is Figures 3 to 5The Z direction is shown, which is also the height direction of the roller 210. The first cutter 220 is fixed to the mounting member 240, which is movably disposed in the first direction on the side of the first portion 212 facing the second portion 213, that is, the first cutter 220 can move relative to the second cutter 230 in the first direction. By placing the material strip 20 in the material passage 210a and moving the first cutter 220 relative to the second cutter 230 in the first direction, the material strip 20 can be cut.

[0053] The beneficial effect here is that by placing the material strip 20 in the material passage 210a and moving the first cutter 220 relative to the second cutter 230 in the first direction, the material strip 20 can be automatically cut, with high cutting efficiency and stable cutting quality.

[0054] In some embodiments of this application, the first portion 212 and the second portion 213 are disposed along the fixing portion 211. Figures 3 to 5 On one side of the Y direction shown, the first part 212, the second part 213, and the fixing part 211 can be a separate structure, and the first part 212, the second part 213, and the fixing part 211 can be fixed together by snap-fit, plug-in, or other means; the first part 212, the second part 213, and the fixing part 211 can also be an integral structure, and the first part 212, the second part 213, and the fixing part 211 can be integrally formed by injection molding, casting, or other means.

[0055] In some embodiments of this application, the second cutter 230 is disposed on the side of the second portion 213 facing the first portion 212. For example, the second portion 213 has a receiving groove, and the second cutter 230 is fixed to the edge of the receiving groove. Figure 5 On one side of the Y direction shown, the second cutter 230 and the receiving groove are along Figures 3 to 5 The other side of the Y direction shown is spaced out and forms a clearance groove, and the first cutter 220 is along the Y direction. Figure 5 When the Z-direction moves downward, it can be positioned exactly at the clearance groove so that the first cutter 220 and the second cutter 230 can contact each other to cut the strip 20.

[0056] For more specific details, please refer to Figure 5 and Figure 6 The first portion 212 and the second portion 213 are constructed as two separate and mirror-symmetrical semi-cylinders, and the axes of the two semi-cylinders are both in a second direction that intersects the first direction; at least one of the first cutter 220 and the second cutter 230 is constructed as a strip-shaped tooth structure extending along the second direction.

[0057] It should be noted that the second direction is Figure 5 and Figure 6The Y direction shown is the axial direction of the roller 210. The first part 212 and the second part 213 are constructed as two separate and mirror-symmetrical semi-cylinders, that is: the arc surface of the first part 212 and the arc surface of the second part 213 both face outwards, and the side of the first part 212 facing the second part 213 and the side of the second part 213 facing the first part 212 are both planes.

[0058] The beneficial effects here are as follows: when the cutting mechanism 200 is used to wrap the joint section 22 of the material strip 20, since the arc surfaces of the first section 212 and the second section 213 are both facing outward, it can avoid damage to the joint section 22 due to the sharp corners on the outer surfaces of the first section 212 and the second section 213. The structure is reasonably designed and compact, which is conducive to improving the space utilization of the cutting mechanism 200. The cutter has a strip-shaped tooth structure, which can disperse local stress and prevent the material strip 20 from sticking to the cutter and turning over during cutting.

[0059] In some embodiments of this application, the first portion 212 and the second portion 213 are semi-cylinders. The semi-cylinders can be hollow or solid structures, and this is not limited here.

[0060] In some embodiments of this application, at least one of the first cutter 220 and the second cutter 230 is configured as a strip-shaped tooth structure extending along a second direction, i.e., along... Figure 5 and Figure 6 The diagram shows a strip-shaped toothed structure extending in the Y direction. For example, both the first cutter 220 and the second cutter 230 are strip-shaped toothed structures, and correspondingly, the mounting member 240 is a strip-shaped structure extending in the second direction.

[0061] Please refer to Figure 5 and Figure 6 The cutting mechanism 200 also includes a first drive assembly 250, which includes a first moving drive member and a first movable member 252. The first movable member 252 is fixedly connected to the mounting member 240. Under the drive of the first moving drive member, the first movable member 252 moves along a first direction and drives the first cutter 220 to move along the first direction.

[0062] Understandably, driven by the first moving drive, the first movable member 252 can move along the first direction and drive the first cutter 220 to move along the first direction, so that the first cutter 220 moves closer to or further away from the second cutter 230.

[0063] The beneficial effects here are: the first moving drive can drive the first cutter 220 to move, thereby changing the position of the first cutter 220 in the first direction, making the operation flexible and convenient, and the structural design reasonable.

[0064] In some embodiments of this application, the first movable member 252 is a component fixedly connected to the mounting member 240 and capable of being driven to move along a first direction by the first moving drive member. The first movable member 252 and the first moving drive member can adopt various structural forms. For example, the first movable member 252 is a piston, the first moving drive member is a compressor or other type of pneumatic drive structure, the first portion 212 has a receiving groove for accommodating the first movable member 252 and the mounting member 240, and the first portion 212 also has a first air blowing channel 251 connected to the receiving groove. Air is blown into the first air blowing channel 251 and the receiving groove by the first moving drive member to drive the first movable member 252 and the mounting member 240 to move along the first direction, and the movement range of the first movable member 252 can be adjusted by adjusting the air blowing rate and air blowing volume of the first moving drive member.

[0065] In some embodiments of this application, since both the mounting member 240 and the first cutter 220 are strip-shaped structures extending along the second direction, and the size of the first movable member 252 in the second direction is smaller than the size of the mounting member 240 in the second direction, at least two first movable members 252 can be fixedly connected to the mounting member 240. When the number of first movable members 252 is at least two, each first movable member 252 is distributed at intervals along the second direction, which can be either equally spaced or non-equally spaced.

[0066] Further, please refer to Figure 5 and Figure 7 The cutting mechanism 200 also includes a first reset assembly 260, which is spaced apart from the first drive assembly 250 in the second direction. The first reset assembly 260 includes a first connecting rod 261 and a first elastic member 262. The first connecting rod 261 has a free end and a fixed end that are arranged opposite to each other in the first direction. The fixed end is fixedly connected to the mounting member 240. The first elastic member 262 is disposed between the free end and the fixed end and is used to provide a restoring force for the first cutter 220 to reset in the first direction.

[0067] It is understandable that when the first cutter 220 is in the initial position, the mounting part 240 and the first connecting rod 261 are also in the initial position, and the first elastic element 262 is in a natural state. When the first cutter 220 moves downward along the first direction under the action of external force, the mounting part 240 and the first connecting rod 261 move downward, and the first elastic element 262 is in a compressed state. When the driving force acting on the first cutter 220 is removed, the first elastic element 262 will return to its original shape and rebound, and drive the mounting part 240 and the first connecting rod 261 back to their original positions, that is, the first cutter 220 returns to its original position.

[0068] The beneficial effects here are: the first reset component 260 and the first drive component 250 are spaced apart in the second direction, and the first reset component 260 is used to provide restoring force for the first cutter 220 to reset in the first direction, which enables the overall structure of the cutting mechanism 200 to be compact and enables the first cutter 220 to return to its position quickly.

[0069] In some embodiments of this application, the first connecting rod 261 has a free end and a fixed end disposed opposite to each other along a first direction. The fixed end is fixedly connected to the mounting member 240. The first connecting rod 261 can adopt various structural forms. For example, the first portion 212 has a stepped groove for accommodating the first connecting rod 261. The fixed end of the first connecting rod 261 (i.e., the bottom end of the connecting rod) extends out of the stepped groove and is fixedly connected to the mounting member 240. The mounting member 240 is limited outside the stepped groove. The portion of the first connecting rod 261 above the fixed end is located inside the stepped groove. The first elastic member 262 is sleeved on the outer periphery of the portion of the first connecting rod 261 above the fixed end.

[0070] In some embodiments of this application, since both the mounting member 240 and the first cutter 220 are strip-shaped structures extending along the second direction, and the dimension of the first connecting rod 261 in the second direction is smaller than the dimension of the mounting member 240 in the second direction, at least two first connecting rods 261 can be fixedly connected to the mounting member 240. When the number of first connecting rods 261 is at least two, the first connecting rods 261 are spaced apart along the second direction, and can be evenly spaced or non-evenly spaced. Here, the number of first elastic members 262 is not limited to one; at least two first elastic members 262 can be provided on the same first connecting rod 261, or at least one first elastic member 262 can be provided on different first connecting rods 261.

[0071] Furthermore, please refer to Figure 5 and Figure 8 The cutting mechanism 200 also includes a first guide assembly 270, which is spaced apart from the first drive assembly 250 in a second direction. The first guide assembly 270 includes a first guide rod 271 and a first bearing 272. The first bearing 272 is fixed to the first portion 212, and the first guide rod 271 is movably inserted through the first bearing 272 in a first direction. The first guide rod 271 is fixedly connected to the mounting member 240. When the first cutter 220 moves in the first direction, the first guide rod 271 moves relative to the first bearing 272 in the first direction.

[0072] It is understandable that when the first cutter 220 is in the initial position, the mounting part 240 and the first connecting rod 261 are also in the initial position, and the first guide rod 271 is in the initial position at this time; when the first cutter 220 moves downward along the first direction under the action of external force, the mounting part 240 and the first connecting rod 261 move downward, and the first guide rod 271 moves relative to the first bearing 272 along the first direction at this time.

[0073] The beneficial effects here are: the first guide component 270 and the first drive component 250 are spaced apart in the second direction, and the first guide component 270 is used to guide the movement of the first cutter 220 in the first direction, which can prevent the first cutter 220 from deviating during the movement, and at the same time make the overall structure of the cutting mechanism 200 compact.

[0074] In some embodiments of this application, a first bearing 272 is fixed to a first portion 212, a first guide rod 271 is movably inserted through the first bearing 272 along a first direction, and the first guide rod 271 is fixedly connected to a mounting member 240. The first guide rod 271 can adopt various structural forms. For example, the first portion 212 has a stepped groove for accommodating the first guide rod 271, the bottom end of the first guide rod 271 extends out of the stepped groove and is fixedly connected to the mounting member 240, the mounting member 240 is limited outside the stepped groove, the portion of the first guide rod 271 above the bottom end is located inside the stepped groove, the first bearing 272 is fixed to the first portion 212, and the portion of the first guide rod 271 above the bottom end is inserted through the first bearing 272 along the first direction.

[0075] In some embodiments of this application, since both the mounting member 240 and the first cutter 220 are strip-shaped structures extending along the second direction, and the dimension of the first guide rod 271 in the second direction is smaller than the dimension of the mounting member 240 in the second direction, at least two first guide rods 271 can be provided and fixedly connected to the mounting member 240. When the number of first guide rods 271 is at least two, the first guide rods 271 are distributed at intervals along the second direction, which can be equally spaced or non-equally spaced. Here, the number of first bearings 272 is not limited to one; at least two first bearings 272 can be provided on the same first guide rod 271, or at least one first bearing 272 can be provided on different first guide rods 271.

[0076] Please refer to Figure 6 The cutting device 10 also includes a pressing mechanism 400 for positioning the material strip 20. The pressing mechanism 400 and the cutting mechanism 200 are distributed at intervals along a third direction. The third direction intersects the first direction and the second direction in pairs but are not coplanar.

[0077] It should be noted that the third party is... Figure 6The X direction shown is the radial direction of the roller 210. When the cutting mechanism 200 cuts the strip 20, the pressing mechanism 400 can press against the surface of the strip 20 to position the strip 20.

[0078] The beneficial effects here are: the clamping mechanism 400 and the cutting mechanism 200 are distributed at intervals along the third direction, and the clamping mechanism 400 can position the material strip 20 when cutting it, so as to avoid the material strip 20 from shifting its position during cutting and affecting the cutting effect.

[0079] In some embodiments of this application, the number of clamping mechanisms 400 is not limited to one. When the number of clamping mechanisms 400 is at least two, each clamping mechanism 400 can be distributed at intervals along a third direction.

[0080] Further, please refer to Figure 6 The pressing mechanism 400 includes a pressure plate 410 for pressing the material strip 20, the pressure plate 410 being configured as a strip structure extending in a second direction.

[0081] The beneficial effect here is that since the strip 20 is a strip structure extending along the second direction and the pressure plate 410 is a strip structure extending along the second direction, it can better press and position the strip 20, which is conducive to improving cutting efficiency.

[0082] In some embodiments of this application, the pressure plate 410 can be a rectangular strip or a circular strip structure. The number of pressure plates 410 is not limited to one. When the number of pressure plates 410 is at least two, each pressure plate 410 can be distributed at intervals along a third direction.

[0083] Furthermore, please refer to Figures 6 to 8 The clamping mechanism 400 further includes a second moving component 420, a second resetting component 430, and a second guiding component 440 connected to the pressure plate 410. The second moving component 420, the second resetting component 430, and the second guiding component 440 are spaced apart along a second direction. The second moving component 420 is used to drive the pressure plate 410 to move along a first direction. The second resetting component 430 is used to provide a restoring force for the pressure plate 410 to reset in the first direction. The second guiding component 440 is used to provide a guiding effect for the movement of the pressure plate 410 in the first direction.

[0084] The beneficial effects here are as follows: when cutting the strip 20, the second moving component 420 can drive the pressure plate 410 to move along the first direction so that the pressure plate 410 presses against the surface of the strip 20 and positions the strip 20; the second guiding component 440 provides guidance for the movement of the pressure plate 410 in the first direction; after the strip 20 is cut, the second resetting component 430 can provide restoring force for the resetting of the pressure plate 410 in the first direction, so that the pressure plate 410 can quickly return to its original position.

[0085] In some embodiments of this application, the second moving component 420 includes a second moving drive and a second movable component 422, the second movable component 422 being fixedly connected to the pressure plate 410; driven by the second moving drive, the second movable component 422 moves along a first direction, thereby causing the pressure plate 410 to move along the first direction. For example, the second movable component 422 is a piston, the second moving drive is a compressor or other type of pneumatic drive structure, the first portion 212 has a receiving groove for accommodating the second movable component 422, and the first portion 212 also has a second air blowing channel 421 communicating with the receiving groove. Air is blown into the second air blowing channel 421 and the receiving groove by the second moving drive to drive the second movable component 422 to move along the first direction, and the movement range of the second movable component 422 can be adjusted by adjusting the air blowing rate and air blowing volume of the second moving drive.

[0086] In some embodiments of this application, the second reset assembly 430 includes a second connecting rod 431 and a second elastic member 432. The second connecting rod 431 has a free end and a fixed end disposed opposite to each other along a first direction, and the fixed end is fixedly connected to the pressure plate 410. The second elastic member 432 is disposed between the free end and the fixed end and is used to provide a restoring force for the reset of the pressure plate 410 in the first direction.

[0087] In some embodiments of this application, the second guide assembly 440 includes a second guide rod 441 and a second bearing 442. The second bearing 442 is fixed to the first portion 212, and the second guide rod 441 is movably inserted through the second bearing 442 in a first direction. The second guide rod 441 is fixedly connected to the pressure plate 410. When the pressure plate 410 moves in the first direction, the second guide rod 441 moves relative to the second bearing 442 in the first direction.

[0088] In some embodiments of this application, the second moving component 420, the second reset component 430, and the second guide component 440 are spaced apart along a second direction, and can be equally spaced or non-equally spaced. The number of each of the second moving component 420, the second reset component 430, and the second guide component 440 is not limited to one.

[0089] Please refer to Figure 1 In one embodiment, the feeding device includes a feeding device 30, a first roll 40, a second roll 50, and the aforementioned cutting device 10. The feeding device 30 is used to output the material strip 20, the first roll 40 is used to receive the material strip 20 output by the feeding device 30, and the second roll 50 is spaced apart from the first roll 40. The cutting mechanism 200 is used to cut the material strip 20 between the feeding device 30 and the first roll 40 into a residual segment 21 and a joint segment 22. The rotating mechanism 300 drives the cutting mechanism 200 to rotate and conveys the joint segment 22 to the second roll 50.

[0090] Understandably, the material strip 20 is generally stored in a wound state before use, and is simply unwound when needed. During the processing of the material strip 20, due to the limited length of a single roll of material strip 20, it needs to be joined to a new roll of material strip 20 in the second roll 50 when the material strip 20 on the first roll 40 is exhausted. At this point, the already-flowing material strip 20 needs to be cut and separated from the first roll 40, that is, the already-flowing material strip 20 is cut into a residual section 21 and a joining section 22. The residual section 21 remains as waste on the first roll 40, and the joining section 22 is spliced ​​and fixed to the material strip 20 of the new roll of material strip 20 in the second roll 50. Optionally, the material strip 20 can be a battery separator, located between the positive and negative electrode plates of the battery, used to isolate the positive and negative electrode plates to prevent direct contact and short circuits.

[0091] The aforementioned feeding equipment can use the cutting mechanism 200 to cut the already fed material strip 20 into residual segments 21 and joint segments 22. Then, the rotating mechanism 300 drives the cutting mechanism 200 to rotate to wind the joint segments 22 and transport the joint segments 22 to the position where they are spliced ​​and fixed with the new material roll of material strip 20. This can realize automatic cutting and automatic splicing of the material strip 20, which is beneficial to improving the processing continuity and processing efficiency of the material strip 20.

[0092] In some embodiments of this application, the feeding device 30 has a structure with an unwinding roller, and the first roll 40 and the second roll 50 both have a structure with a winding roller. The number of unwinding rollers and winding rollers is not limited to one.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0094] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cutting device for cutting a web (20), characterized in that, The cutting device (10) includes: Swing arm connecting frame (100); A cutting mechanism (200) is rotatably mounted on the swing arm connecting frame (100) and is used to cut and / or wind the material strip (20). A rotating mechanism (300) is connected to the swing arm connecting frame (100) and used to drive the swing arm connecting frame (100) to rotate, and / or connected to the cutting mechanism (200) and used to drive the cutting mechanism (200) to rotate.

2. The cutting apparatus of claim 1, wherein, The rotating mechanism (300) includes a first rotating drive (310) and a second rotating drive (320). The first rotating drive (310) is connected to the swing arm connecting frame (100) and is used to drive the swing arm connecting frame (100) to rotate. The second rotating drive (320) is connected to the cutting mechanism (200) and is used to drive the cutting mechanism (200) to rotate.

3. The cutting apparatus of claim 2, wherein, The cutting mechanism (200) cuts the strip (20) into a residual segment (21) and a joining segment (22), drives the swing arm connecting frame (100) to rotate via the first rotary drive (310), and / or drives the cutting mechanism (200) to rotate via the second rotary drive (320), so that the cutting mechanism (200) wraps around the joining segment (22).

4. The cutting device according to claim 1, characterized in that, The cutting mechanism (200) includes a roller (210), a first cutter (220), a second cutter (230), and a mounting component (240). The roller (210) includes a fixing part (211) and a first part (212) and a second part (213) disposed on the fixing part (211). The first part (212) and the second part (213) are spaced apart along a first direction and form a material passage (210a) for the material strip (20) to pass through. The second cutter (230) is disposed on the side of the second portion (213) facing the first portion (212), and the mounting member (240) is movably disposed on the side of the first portion (212) facing the second portion (213) along the first direction, and the first cutter (220) is fixed to the mounting member (240).

5. The cutting device according to claim 4, characterized in that, The first portion (212) and the second portion (213) are constructed as two semi-cylinders that are separate from each other and mirror-symmetrical, and the axes of the two semi-cylinders are both in a second direction that intersects the first direction; At least one of the first cutter (220) and the second cutter (230) is configured as a strip-shaped tooth structure extending along the second direction.

6. The cutting device according to claim 5, characterized in that, The cutting mechanism (200) further includes a first drive assembly (250), which includes a first moving drive component and a first movable component (252), and the first movable component (252) is fixedly connected to the mounting component (240); Driven by the first moving drive, the first movable member (252) moves along the first direction and drives the first cutter (220) to move along the first direction.

7. The cutting device according to claim 6, characterized in that, The cutting mechanism (200) further includes a first reset component (260), which is spaced apart from the first drive component (250) in the second direction; The first reset assembly (260) includes a first connecting rod (261) and a first elastic member (262). The first connecting rod (261) has a free end and a fixed end arranged opposite to each other along the first direction. The fixed end is fixedly connected to the mounting member (240). The first elastic element (262) is disposed between the free end and the fixed end, and is used to provide a restoring force for the first cutter (220) to reset in the first direction.

8. The cutting device according to claim 6, characterized in that, The cutting mechanism (200) further includes a first guide component (270), which is spaced apart from the first drive component (250) in the second direction; The first guide assembly (270) includes a first guide rod (271) and a first bearing (272). The first bearing (272) is fixed to the first portion (212). The first guide rod (271) is movably inserted through the first bearing (272) along the first direction. The first guide rod (271) is fixedly connected to the mounting member (240). When the first cutter (220) moves in the first direction, the first guide rod (271) moves relative to the first bearing (272) in the first direction.

9. The cutting device according to claim 5, characterized in that, The cutting device (10) further includes a pressing mechanism (400) for positioning the strip (20), the pressing mechanism (400) and the cutting mechanism (200) are distributed at intervals along a third direction, the third direction intersects the first direction and the second direction in pairs but are not coplanar.

10. The cutting device according to claim 9, characterized in that, The pressing mechanism (400) includes a pressure plate (410) for pressing the strip (20), the pressure plate (410) being configured as a strip structure extending along the second direction.

11. The cutting device according to claim 10, characterized in that, The clamping mechanism (400) further includes a second moving component (420), a second resetting component (430), and a second guiding component (440) connected to the pressure plate (410), wherein the second moving component (420), the second resetting component (430), and the second guiding component (440) are spaced apart along the second direction; The second moving component (420) is used to drive the pressure plate (410) to move along the first direction, the second reset group is used to provide restoring force for the reset of the pressure plate (410) in the first direction, and the second guide component (440) is used to provide guiding function for the movement of the pressure plate (410) in the first direction.

12. A feeding device, characterized in that, include: Feeding device (30) for outputting the material belt (20); The first roll (40) is used to receive the strip (20) output by the feeding device (30); The second roll (50) is spaced apart from the first roll (40); The cutting device according to any one of claims 1-11, wherein the cutting mechanism (200) is used to cut the strip (20) between the feeding device (30) and the first roll (40) into a residual segment (21) and a joining segment (22), and the rotating mechanism (300) drives the cutting mechanism (200) to rotate and conveys the joining segment (22) to the second roll (50).

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