Cutting mechanism, sheet production device, sheet stacking equipment and battery production system

Abstract

The utility model relates to the technical field of battery manufacturing, and discloses a cutting mechanism, a piece making device, a piece stacking device and a battery production system. The first end of the upper cutter is connected with the main body, and the second end of the upper cutter extends in the direction away from the main body, so that the upper cutter forms a cantilever structure; the lower cutter is arranged opposite to the upper cutter, the first end of the lower cutter is connected with the main body, and the second end of the lower cutter extends in the direction away from the main body, so that the lower cutter forms a cantilever structure; and under the driving of the cutter body driving assembly, the upper cutter and the lower cutter are suitable for getting close to each other or getting away from each other. The upper cutter and the lower cutter form a cantilever structure through the main body, so that a feeding jig of a material belt can conveniently penetrate through the upper cutter and the lower cutter, the width of the feeding jig is prevented from being limited, the situation that the cutting mechanism occupies too large space due to the fact that the size of the cutting mechanism is too large is avoided, and layout of the cutting mechanism is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a cutting mechanism, a wafer-making device, a wafer-stacking equipment, and a battery production system. Background Technology

[0002] In battery manufacturing, it is often necessary to cut rolled strips of material. For example, electrode strips are cut into individual electrode sheets, which are then used in the stacking process of battery cells. In existing technology, when using metal molds to cut the strip, the lower blade is usually fixed, while the upper blade moves towards the lower blade and cooperates with it to cut the strip. Guide structures are installed at opposite ends of the upper blade along its length to guide and limit its movement. However, the presence of these guide structures at both ends limits the width of the fixture that can pass between the upper and lower blades. Furthermore, to allow the fixture to pass through, the distance between the guide structures needs to be relatively large, increasing the space occupied by the cutting mechanism and hindering its layout. Utility Model Content

[0003] In view of this, the present invention provides a cutting mechanism, a sheet-making device, a stacking equipment, and a battery production system to solve the problems of increased space occupation and unfavorable layout of the cutting mechanism in the prior art.

[0004] In a first aspect, this utility model provides a cutting mechanism, comprising: a blade holder, including a main body; an upper blade, the first end of which is connected to the main body, and the second end of which extends away from the main body to form a cantilever structure; a lower blade, disposed opposite to the upper blade, the first end of which is connected to the main body, and the second end of which extends away from the main body to form a cantilever structure; and a blade driving assembly, under the drive of the blade driving assembly, the upper blade and the lower blade are adapted to move closer to or further away from each other.

[0005] In one optional embodiment, the tool holder further includes an upper tool holder disposed on the side of the upper blade away from the lower blade. A first end of the upper tool holder is connected to the main body, and a second end of the upper tool holder extends away from the main body. The first end of the upper blade is drive-connected to the blade body drive assembly, and an upper guide structure is provided between the second end of the upper blade and the second end of the upper tool holder. And / or, the tool holder further includes a lower tool holder disposed on the side of the lower blade away from the upper blade. A first end of the lower tool holder is connected to the main body, and a second end of the lower tool holder extends away from the main body. The first end of the lower blade is drive-connected to the blade body drive assembly, and a lower guide structure is provided between the second end of the lower blade and the second end of the lower tool holder.

[0006] In one optional embodiment, the main body includes a frame, a guide fixing structure, and a guide moving structure. The guide fixing structure is connected to the frame, and the guide moving structure is movably disposed along the guide fixing structure. Two guide moving structures are spaced apart on the guide fixing structure, and the upper blade and the lower blade are respectively connected to the two guide moving structures.

[0007] In one optional embodiment, a plurality of guide fixing structures are spaced apart on the frame, and each guide fixing structure is provided with two guide moving structures. The upper blade is simultaneously connected to the upper guide moving structure on each guide fixing structure, and the lower blade is simultaneously connected to the lower guide moving structure on each guide fixing structure.

[0008] In one optional embodiment, a plurality of the guide fixing structures, the upper guide structure, and / or the lower guide structure are arranged along the same straight line; or, a plurality of the guide fixing structures, the upper guide structure, and / or the lower guide structure are arranged in a triangular pattern.

[0009] In one optional embodiment, a guide engagement structure is provided between the upper blade and the lower blade. One end of the guide engagement structure is connected to the second end of the upper blade, and the other end of the guide engagement structure is connected to the second end of the lower blade. The guide engagement structure is adapted to be engaged or disengaged.

[0010] In one optional embodiment, the tool body driving assembly includes an upper tool driving structure and a lower tool driving structure, wherein the upper tool driving structure is connected to the upper tool drive and the lower tool driving structure is connected to the lower tool drive; or, the tool body driving assembly is simultaneously connected to both the upper tool and the lower tool drive, and is adapted to drive the upper tool and the lower tool to move simultaneously in opposite directions.

[0011] In one optional embodiment, the upper tool drive structure includes an upper servo motor, an upper lead screw, and an upper connecting block. The upper servo motor is disposed on the tool holder and is adapted to drive the upper lead screw to rotate. The upper connecting block is threadedly connected to the upper lead screw and connected to the upper tool. And / or, the lower tool drive structure includes a lower servo motor, a lower lead screw, and a lower connecting block. The lower servo motor is disposed on the tool holder and is adapted to drive the lower lead screw to rotate. The lower connecting block is threadedly connected to the lower lead screw and connected to the lower tool.

[0012] In one optional embodiment, the tool body driving assembly includes a servo motor and a bidirectional lead screw. The upper tool and the lower tool are respectively connected to the bidirectional thread on the bidirectional lead screw. The servo motor is adapted to drive the bidirectional lead screw to rotate, so that the upper tool and the lower tool move in opposite directions. Alternatively, the tool body driving assembly includes a servo motor, an upper tool cam, an upper tool connecting rod structure, a lower tool cam, and a lower tool connecting rod structure. The servo motor is drivenly connected to both the upper tool cam and the lower tool cam. One end of the upper tool connecting rod structure is movably connected to the peripheral wall of the upper tool cam, and the other end of the upper tool connecting rod structure is connected to the upper tool. One end of the lower tool connecting rod structure is movably connected to the peripheral wall of the lower tool cam, and the other end of the lower tool connecting rod structure is connected to the lower tool.

[0013] In one optional embodiment, the cutting mechanism further includes an upper dust collection structure having an upper dust collection position, the upper dust collection structure being fixed to the upper dust collection position, or the upper dust collection structure being movable to move closer to or further away from the upper dust collection position; and / or,

[0014] The cutting mechanism further includes a lower dust collection structure, which has a lower dust collection position. The lower dust collection structure is fixed at the lower dust collection position, or the lower dust collection structure is movable to move closer to or further away from the lower dust collection position.

[0015] In one optional embodiment, the upper dust collection structure is connected to the upper blade; alternatively, the cutting mechanism further includes an upper dust collection drive structure, which is drively connected to the upper dust collection structure; and / or,

[0016] The lower dust collection structure is connected to the lower blade, or the cutting mechanism further includes a lower dust collection drive structure, which is connected to the lower dust collection structure in a transmission manner.

[0017] Secondly, this utility model also provides a sheet-making device, including the aforementioned cutting mechanism.

[0018] In one alternative embodiment, the sheet-making apparatus further includes a feeding fixture adapted to move the material belt between the upper blade and the lower blade.

[0019] Thirdly, this utility model also provides a stacking device, including: a stacking table; the aforementioned wafer-making device disposed on the side of the stacking table; and an electrode transport device adapted to transfer between the wafer-making device and the stacking table.

[0020] Fourthly, this utility model also provides a battery production system, including the aforementioned stacking equipment.

[0021] The technical solution of this application has the following advantages:

[0022] Both the first end of the upper blade and the first end of the lower blade are connected to the blade drive assembly on the main body, and both the second end of the upper blade and the second end of the lower blade extend away from the main body. Therefore, both the upper blade and the lower blade form a cantilever structure through the main body, which facilitates the feeding fixture of the material strip to pass between the upper blade and the lower blade. This avoids limiting the width of the feeding fixture and also avoids the cutting mechanism from being too large and occupying too much space, thus facilitating the layout of the cutting mechanism. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the first embodiment of the cutting mechanism of this utility model;

[0025] Figure 2 for Figure 1 Rear view of the cutting mechanism shown;

[0026] Figure 3 for Figure 1 Left view of the cutting mechanism shown;

[0027] Figure 4 for Figure 1 A top view of the cutting mechanism shown;

[0028] Figure 5 This is a schematic diagram of one arrangement of the guide fixing structure according to an embodiment of the present utility model;

[0029] Figure 6 This is a schematic diagram of another arrangement of the guide fixing structure according to an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the second embodiment of the cutting mechanism of this utility model;

[0031] Figure 8 for Figure 7 Rear view of the cutting mechanism shown;

[0032] Figure 9 for Figure 7 The right view of the cutting mechanism shown;

[0033] Figure 10 for Figure 8 A top view of the cutting mechanism shown;

[0034] Figure 11 This is a schematic diagram of a ball bushing guide assembly in a third embodiment of the cutting mechanism of the present utility model, in which the guide fixing structure, guide moving structure, and guide mating structure are respectively a ball bushing guide assembly.

[0035] Figure 12 for Figure 11 The front view of the cutting mechanism shown;

[0036] Figure 13 This is a schematic diagram of the guide fixing structure, guide moving structure, and guide mating structure of the cutting mechanism in the third embodiment of the present utility model, which is a guide rail and guide block guide assembly.

[0037] Figure 14 for Figure 13 Rear view of the cutting mechanism shown;

[0038] Figure 15 for Figure 13 The right view of the cutting mechanism shown;

[0039] Figure 16 for Figure 14 Top view of the cutting mechanism shown

[0040] Figure 17 This is a schematic diagram of an alternative embodiment of the cutting mechanism of this utility model, representing a third embodiment.

[0041] Figure 18 for Figure 17 The front view of the cutting mechanism shown;

[0042] Figure 19 for Figure 17 Left view of the cutting mechanism shown;

[0043] Figure 20 for Figure 17 A top view of the cutting mechanism shown;

[0044] Figure 21 This is a schematic diagram of the upper blade, lower blade, upper dust collection structure, and lower dust collection structure according to an embodiment of the present utility model.

[0045] Explanation of reference numerals in the attached figures:

[0046] 11. Upper tool; 111. Upper tool body; 112. Upper tool holder; 12. Lower tool; 121. Lower tool body; 122. Lower tool holder; 13. Tool holder; 131. Main body; 1311. Frame; 1312. Guide fixing structure; 1313. Guide moving structure; 132. Upper tool holder; 133. Upper guide structure; 134. Lower tool holder; 135. Lower guide structure; 14. Tool holder drive structure; 141. Linear drive unit; 142. Moving seat; 15. Upper tool drive structure; 151. Upper servo 152. Servo motor; 153. Upper lead screw; 16. Lower connecting block; 161. Lower servo motor; 162. Lower lead screw; 163. Lower connecting block; 17. Guide mating structure; 18. Tool body drive structure; 19. Servo motor; 20. Bidirectional lead screw; 101. Upper tool cam; 102. Upper tool connecting rod structure; 103. Lower tool cam; 104. Lower tool connecting rod structure; 105. Cam follower; 106. Guide rail; 61. Upper dust collection structure; 62. Lower dust collection structure. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] The following is combined with Figures 1 to 16 The following describes embodiments of the present invention.

[0049] According to an embodiment of the present invention, a cutting mechanism is provided, comprising: a blade holder 13, a blade driving assembly, an upper blade 11, and a lower blade 12. The blade holder 13 includes a main body 131, a first end of the upper blade 11 connected to the main body 131, and a second end of the upper blade 11 extending away from the main body 131, thus forming a cantilever structure. The lower blade 12 is disposed opposite to the upper blade 11, a first end of the lower blade 12 connected to the main body 131, and a second end of the lower blade 12 extending away from the main body 131, thus forming a cantilever structure. Under the drive of the blade driving assembly, the upper blade 11 and the lower blade 12 are adapted to move closer to or further away from each other.

[0050] In the cutting mechanism of this embodiment, the first end of the upper blade 11 and the first end of the lower blade 12 are both connected to the main body 131, and the second ends of the upper blade 11 and the lower blade 12 are both extended in a direction away from the main body 131. Therefore, the upper blade 11 and the lower blade 12 both form a cantilever structure through the main body 131, which facilitates the feeding fixture of the material strip to pass between the upper blade 11 and the lower blade 12. This avoids limiting the width of the feeding fixture and also avoids the cutting mechanism from being too large and occupying too much space, thus facilitating the layout of the cutting mechanism.

[0051] It is worth noting that in related technologies, the lower blade 12 is usually fixed, driving the upper blade 11 to move toward the lower blade 12 so that the upper blade 11 and the lower blade 12 cooperate to cut the material strip. However, if a feeding fixture is required to move the material strip between the upper blade 11 and the lower blade 12, if the lower blade 12 is fixed, the feeding fixture is prone to interference with the lower blade 12, affecting the smooth progress of the cutting process. Therefore, in this embodiment, driven by the blade driving assembly, the upper blade 11 and the lower blade 12 can move toward each other to cut the material strip, or move toward each other to avoid the feeding fixture. Furthermore, both the upper blade 11 and the lower blade 12 form a cantilever structure, facilitating the smooth passage of the feeding fixture between the upper blade 11 and the lower blade 12.

[0052] It is worth noting that the upper blade 11 and the lower blade 12 are suitable for shearing or punching the strip to be cut at the cutting position.

[0053] It should be noted that shearing refers to the process where both the upper blade 11 and the lower blade 12 have cutting edges, and the material strip is cut at the cutting position by the cutting edges of the upper blade 11 and the lower blade 12. For shearing, the upper blade 11 and the lower blade 12 usually arrive at the cutting position simultaneously. Punching refers to the process where one of the upper blade 11 and the lower blade 12 has a cutting edge, and the other of the upper blade 11 and the lower blade 12 is a support plane set opposite to the cutting edge. The cutting edge punches the material strip on the support plane. For punching, the upper blade 11 and the lower blade 12 with the support plane usually arrive at the cutting position first, while the upper blade 11 and the lower blade 12 with the cutting edge arrive at the cutting position slightly later to punch the electrode material strip corresponding to the support plane.

[0054] The following describes various embodiments of the cutting mechanism 1.

[0055] In the first implementation, such as Figures 1 to 4 As shown, the blade drive assembly includes an upper blade drive structure 15 and a lower blade drive structure 16. The upper blade drive structure 15 is connected to the upper blade 11, and the lower blade drive structure 16 is connected to the lower blade 12. Therefore, during the cutting operation, the upper blade drive structure 15 drives the upper blade 11 to descend, and the lower blade drive structure 16 drives the lower blade 12 to rise, and the material strip is cut off with the cooperation of the upper blade 11 and the lower blade 12.

[0056] It should be noted that, driven by the lower blade drive structure 16, the lower blade 12 first rises to the cutting position, thus allowing it to contact the material strip and support it. Then, driven by the upper blade drive structure 15, the upper blade 11 descends and cooperates with the lower blade 12 to cut the material strip. Specifically, the lower blade drive structure 16 can drive the lower blade 12 first, and after a predetermined interval, the upper blade drive structure 15 can drive the upper blade 11. Alternatively, the stroke of the lower blade 12 can be shorter than that of the upper blade 11, in which case the lower blade drive structure 16 and the upper blade drive structure 15 can simultaneously drive the lower blade 12 and the upper blade 11. In this case, the upper blade 11 and the lower blade 12 cut the material strip using a punching method, and the upper blade 11 has a cutting edge, while the lower blade 12 has a supporting surface.

[0057] Alternatively, driven by the upper blade drive structure 15, the upper blade 11 first descends to the cutting position, allowing it to contact the material strip and exert downward pressure. Then, driven by the lower blade drive structure 16, the lower blade 12 rises and cooperates with the upper blade 11 to cut the material strip. Specifically, the upper blade drive structure 15 can first drive the upper blade 11 to move, and after a predetermined interval, the lower blade drive structure 16 can then drive the lower blade 12 to move. Alternatively, the stroke of the upper blade 11 can be shorter than the stroke of the lower blade 12, allowing both the lower blade drive structure 16 and the upper blade drive structure 15 to drive both the lower blade 12 and the upper blade 11 simultaneously. In this case, the upper blade 11 and the lower blade 12 cut the material strip using a punching method, with the upper blade 11 having a supporting plane and the lower blade 12 having a cutting edge.

[0058] Alternatively, the upper blade drive structure 15 can drive the upper blade 11 to descend, while the lower blade drive structure 16 can drive the lower blade 12 to rise, so that both the upper blade 11 and the lower blade 12 reach the cutting position simultaneously. In this case, the upper blade 11 and the lower blade 12 cut the material strip by shearing, and both the upper blade 11 and the lower blade 12 have cutting edges.

[0059] In the first implementation, such as Figure 1 and Figure 2As shown, the tool holder 13 also includes an upper tool holder 132, which is located on the side of the upper tool 11 away from the lower tool 12. The first end of the upper tool holder 132 is connected to the main body 131, and the second end of the upper tool holder 132 is oriented away from the main body 131. The first end of the upper tool 11 is connected to the upper tool drive structure 15. An upper guide structure 133 is provided between the second end of the upper tool 11 and the second end of the upper tool holder 132. The tool holder 13 also includes a lower tool holder 134, which is located on the side of the lower tool 12 away from the upper tool 11. The first end of the lower tool holder 134 is connected to the main body 131, and the second end of the lower tool holder 134 is oriented away from the main body 131. The first end of the lower tool 12 is connected to the lower tool drive structure 16. A lower guide structure 135 is provided between the second end of the lower tool 12 and the second end of the lower tool holder 134. With this configuration, the upper blade 11 is mounted on the main body 131 using the upper blade holder 132, and the lower blade 12 is mounted on the main body 131 using the lower blade holder 134. Furthermore, the movement of the upper blade 11 is guided and limited by the upper guide structure 133 to ensure the positional accuracy of the upper blade 11, and the movement of the lower blade 12 is guided and limited by the lower guide structure 135 to ensure the positional accuracy of the lower blade 12. This ensures the matching accuracy of the upper blade 11 and the lower blade 12, thereby improving the cutting accuracy of the material strip.

[0060] Furthermore, in this embodiment, both the upper guide structure 133 and the lower guide structure 135 are ball bushing guide assemblies. Of course, the upper guide structure 133 and / or the lower guide structure 135 can also be guide rail / guide block guide assemblies.

[0061] In one embodiment, such as Figure 1 and Figure 3 As shown, the main body 131 includes a frame 1311, a guide fixing structure 1312, and a guide moving structure 1313. The guide fixing structure 1312 is connected to the frame 1311, and the guide moving structure 1313 is movably arranged along the guide fixing structure 1312. Two guide moving structures 1313 are spaced apart on the guide fixing structure 1312, and the upper blade 11 and the lower blade 12 are respectively connected to the two guide moving structures 1313. With this arrangement, through the guiding cooperation of the guide moving structure 1313 and the guide fixing structure 1312, the movement of the upper blade 11 and the lower blade 12 is guided and limited at the first end of the upper blade 11 and the first end of the lower blade 12, further ensuring the positional accuracy of the upper blade 11 and the lower blade 12, and thus further improving the cutting accuracy of the material strip.

[0062] It should be noted that, in this embodiment, as Figure 1 and Figure 3As shown, the guide fixing structure 1312 is a guide shaft, and the guide moving structure 1313 is a guide sleeve. Ball bearings are arranged between the guide shaft and the guide sleeve to form a ball bushing guide assembly. Alternatively, the guide fixing structure 1312 can also be a guide rail, and correspondingly, the guide moving structure 1313 can be a guide block to form a guide rail and guide block guide assembly (see reference). Figure 14 ).

[0063] For further details, please refer to Figure 1 and Figure 4 Several guide fixing structures 1312 are spaced apart on the frame 1311. Each guide fixing structure 1312 has two guide moving structures 1313. The upper blade 11 is connected to the upper guide moving structure 1313 on each guide fixing structure 1312, and the lower blade 12 is connected to the lower guide moving structure 1313 on each guide fixing structure 1312. Since both the upper blade 11 and the lower blade 12 are cantilever structures, the first end of the upper blade 11 cooperates with several guide fixing structures 1312 through several guide moving structures 1313, and the first end of the lower blade 12 cooperates with several guide fixing structures 1312 through several guide moving structures 1313. This improves the overall rigidity and stability of the upper blade 11 and the lower blade 12, ensuring cutting accuracy.

[0064] Specifically, such as Figure 4 and Figure 5 As shown, several guide fixing structures 1312, as well as an upper guide structure 133 and / or a lower guide structure 135, are arranged along the same straight line; further, in this embodiment, the upper guide structure 133 and the lower guide structure 135 are arranged along the vertical direction ( Figure 5 The guide fixing structure 1312 is set in two collinear directions (perpendicular to the drawing surface). Figure 5 In the diagram shown, the two guide fixing structures 1312, the upper guide structure 133, and the lower guide structure 135 are arranged along the same straight line. Of course, the number of guide fixing structures 1312 can also be set to other quantities, such as three or four.

[0065] Or, such as Figure 6 As shown, several guide fixing structures 1312, as well as the upper guide structure 133 and / or the lower guide structure 135, are arranged in a triangular pattern, thereby giving the main body 131 higher stability. Furthermore, the upper guide structure 133 and the lower guide structure 135 are aligned vertically (…). Figure 6 The guide fixing structure 1312 is set in two collinear directions (perpendicular to the drawing surface). Figure 6In the diagram shown, the locations of the two guide fixing structures 1312 serve as two vertices of a triangle, and the location of the upper guide structure 133 (which is also the location of the lower guide structure 135) serves as the other vertex of the triangle. Of course, the number of guide fixing structures 1312 can also be set to other numbers, such as three or four, etc. Specifically, it can be determined in... Figure 6 A further guide fixing structure 1312 is added between the two guide fixing structures 1312 shown.

[0066] It is worth noting that the several guide fixing structures 1312 may be arranged along the same straight line as the upper guide structure 133 or in a triangular arrangement; or, the several guide fixing structures 1312 may be arranged along the same straight line as the lower guide structure 135 or in a triangular arrangement.

[0067] In the first implementation, such as Figures 1 to 4 As shown, both the upper tool drive structure 15 and the lower tool drive structure 16 are mounted on the main body 131.

[0068] Specifically, in the first implementation, such as Figure 1 and Figure 3 As shown, the upper tool drive structure 15 includes an upper servo motor 151, an upper lead screw 152, and an upper connecting block 153. The upper servo motor 151 is mounted on the tool holder 13 and is adapted to drive the upper lead screw 152 to rotate. The upper connecting block 153 is threadedly connected to the upper lead screw 152 and connected to the upper tool 11. Therefore, under the drive of the upper servo motor 151, the upper lead screw 152 rotates, causing the upper connecting block 153 to move along the upper lead screw 152 and drive the upper tool 11 to move. The lower tool drive structure 16 includes a lower servo motor 161, a lower lead screw 162, and a lower connecting block 163. The lower servo motor 161 is mounted on the tool holder 13 and is adapted to drive the lower lead screw 162 to rotate. The lower connecting block 163 is threadedly connected to the lower lead screw 162 and connected to the lower tool 12. Therefore, under the drive of the lower servo motor 161, the lower lead screw 162 rotates, causing the lower connecting block 163 to move along the lower lead screw 162 and drive the lower tool 12 to move.

[0069] Of course, as an alternative implementation, the upper tool drive structure 15 and the lower tool drive structure 16 can also be linear motors or telescopic cylinders, etc.

[0070] In the second implementation, such as Figures 7 to 10 As shown, in comparison with the first embodiment, the following only describes the differences between the two embodiments.

[0071] In the second implementation, such as Figures 7 to 9As shown, the tool holder 13 also includes a lower tool holder 134, which is located on the side of the lower tool 12 away from the upper tool 11. The first end of the lower tool holder 134 is connected to the main body 131, and the second end of the lower tool holder 134 is arranged in a direction away from the main body 131. The first end of the lower tool 12 is connected to the lower tool drive structure 16 for transmission, and a lower guide structure 135 is provided between the second end of the lower tool 12 and the second end of the lower tool holder 134.

[0072] In the second implementation, such as Figure 7 and Figure 8 As shown, a guide fitting structure 17 is provided between the upper blade 11 and the lower blade 12. One end of the guide fitting structure 17 is connected to the second end of the upper blade 11, and the other end of the guide fitting structure 17 is connected to the second end of the lower blade 12. The guide fitting structure 17 is suitable for being fitted together or separated.

[0073] Specifically, in the second implementation, such as Figure 7 and Figure 8 As shown, the lower guide structure 135 is a ball bushing guide assembly. That is, the lower guide structure 135 includes a guide shaft and a guide sleeve. One end of the guide shaft (the lower end of the guide shaft) is connected to the second end of the lower tool holder 134, and the other end of the guide shaft (the upper end of the guide shaft) passes through the second end of the lower tool 12. The guide sleeve is sleeved on the outside of the guide shaft and is movably disposed along the guide shaft. The guide sleeve is connected to the second end of the lower tool 12.

[0074] Furthermore, such as Figure 7 and Figure 8 As shown, the guide shaft extends from the lower blade 12 toward the upper blade 11, and a guide sleeve is also provided at the second end of the upper blade 11 to form a guide mating structure 17. In the cutting state, the guide sleeve of the upper blade 11 is inserted into the guide shaft for guidance; in the avoidance state, the guide sleeve of the upper blade 11 is separated from the guide shaft. It is worth noting that the end of the guide shaft near the upper blade 11 (the upper end of the guide shaft) is chamfered to facilitate insertion with the guide sleeve of the upper blade 11.

[0075] It should be noted that, as an alternative implementation, the lower guide structure 135 can also be a guide rail and guide block guide structure (see reference). Figure 13 and Figure 14 Specifically, the lower guide structure 135 includes a guide rail and a guide block. One end of the guide rail (the lower end of the guide rail) is connected to the second end of the lower blade holder 134, and the other end of the guide rail (the upper end of the guide rail) passes through the second end of the lower blade 12. The guide block is slidably connected to the guide rail and connected to the second end of the lower blade 12. Further, the guide rail extends from the lower blade 12 toward the upper blade 11, and the second end of the upper blade 11 is also provided with a guide block to form a guide mating structure 17. In the cutting state, the guide block of the upper blade 11 is inserted into the guide rail for guidance; in the avoidance state, the guide block of the upper blade 11 is separated from the guide rail.

[0076] That is, in the second embodiment, the guide mating structure 17 is integrally formed with the lower guide structure 135. Of course, the guide mating structure 17 and the lower guide structure 135 can be set independently, as long as they meet the guiding requirements.

[0077] It should be noted that the aforementioned guiding and mating structure 17 can also be applied between the upper blade 11 and the lower blade 12 in the first embodiment.

[0078] It is worth noting that in the second embodiment described above, the tool holder 13 only includes the lower tool holder 134, and does not include the upper tool holder 132. Of course, as an alternative embodiment, the tool holder 13 may also include only the upper tool holder 132, without the lower tool holder 134. Correspondingly, an upper guide structure 133 is provided between the second end of the upper tool 11 and the second end of the upper tool holder 132. Furthermore, the guide mating structure 17 may also be provided along with the upper guide structure 133.

[0079] In a third embodiment, the blade drive assembly is simultaneously connected to both the upper blade 11 and the lower blade 12, and is adapted to drive the upper blade 11 and the lower blade 12 to move simultaneously in opposite directions. In this case, driven by the blade drive assembly, the lower blade 12 and the upper blade 11 can simultaneously reach the cutting position. For example, the upper blade 11 and the lower blade 12 have equal strokes, and the blade drive assembly drives the upper blade 11 and the lower blade 12 to move simultaneously in opposite directions; therefore, during the cutting action, the blade drive assembly simultaneously drives the upper blade 11 to descend and the lower blade 12 to rise, and the material strip is cut with the cooperation of the upper blade 11 and the lower blade 12.

[0080] It should be noted that in the third embodiment, both the upper blade 11 and the lower blade 12 typically have cutting edges to cut the material strip.

[0081] Specifically, in the third implementation, such as Figures 11 to 16 As shown, the tool body drive assembly may include a servo motor 19 and a bidirectional lead screw 20. The upper tool 11 and the lower tool 12 are respectively connected to the bidirectional thread on the bidirectional lead screw 20. The servo motor 19 is adapted to drive the bidirectional lead screw 20 to rotate, and under the action of the bidirectional thread, the upper tool 11 and the lower tool 12 move in opposite directions.

[0082] As an alternative implementation method, in the third implementation method, such as Figures 17 to 20As shown, the tool body drive assembly includes a servo motor 19, an upper tool cam 101, an upper tool connecting rod structure 102, a lower tool cam 103, and a lower tool connecting rod structure 104. The servo motor 19 is driven by both the upper tool cam 101 and the lower tool cam 103. One end of the upper tool connecting rod structure 102 is movably connected to the peripheral wall of the upper tool cam 101, and the other end of the upper tool connecting rod structure 102 is connected to the upper tool 11. One end of the lower tool connecting rod structure 104 is movably connected to the peripheral wall of the lower tool cam 103, and the other end of the lower tool connecting rod structure 104 is connected to the lower tool 12. Furthermore, the upper tool cam 101 is connected to the upper tool connecting rod structure 102 via a cam follower 105, and the lower tool cam 103 is connected to the lower tool connecting rod structure 104 via a cam follower 105. It is worth noting that the tool holder 13 is provided with a guide rail 106, which extends vertically. The upper tool connecting rod structure 102 and the lower tool connecting rod structure 104 are slidably connected to the guide rail 106.

[0083] In one embodiment, such as Figure 21 As shown, the cutting mechanism also includes an upper dust collection structure 61, which has an upper dust collection position. The upper dust collection structure 61 is fixed to the upper dust collection position, or the upper dust collection structure 61 is movable to be closer to or further away from the upper dust collection position. Furthermore, the upper dust collection position is located close to the cutting position.

[0084] The following describes the specific method of movable installation of the upper dust collection structure 61.

[0085] In one embodiment, such as Figure 21 As shown, the upper dust collection structure 61 is connected to the upper blade 11. Therefore, the upper blade 11 can drive the upper dust collection structure 61 to move simultaneously.

[0086] Specifically, in one embodiment, when the upper blade 11 and the lower blade 12 reach the cutting position under the drive of the blade driving assembly, the upper dust collection structure 61 reaches the upper dust collection position. When the upper blade 11 and the lower blade 12 leave the cutting position, the upper dust collection structure 61 leaves the upper dust collection position.

[0087] In another embodiment, the upper dust collection structure 61 includes an upper dust collection section and an upper dust collection drive section. The upper dust collection drive section is connected to the upper blade 11 and is drively connected to the upper dust collection section. Driven by the upper dust collection drive section and the blade drive assembly, the upper dust collection section reaches the upper dust collection position before the upper blade 11 and lower blade 12 reach the cutting position, and / or, the upper dust collection section leaves the upper dust collection position after the upper blade 11 and lower blade 12 have left the cutting position. Therefore, before the upper blade 11 and lower blade 12 cooperate to cut at the cutting position, the upper dust collection structure 61 has already reached the upper dust collection position, enabling dust removal from the upper blade 11 and lower blade 12 before cutting; and / or, when the upper blade 11 and lower blade 12 have finished cutting and separated, the upper dust collection structure 61 is still in the upper dust collection position, enabling dust removal from the upper blade 11 and lower blade 12 after cutting. Thus, the dust collection effect can be guaranteed, and the electrode processing quality can be improved.

[0088] As an alternative implementation, the cutting mechanism also includes an upper dust collection drive structure, which is connected to the upper dust collection structure 61 in a transmission manner. That is, the upper dust collection structure 61 is not integrated with the upper blade 11, but is set separately, and is driven by an additional upper dust collection drive structure.

[0089] Furthermore, in the aforementioned alternative embodiments, driven by the upper dust collection drive structure and the blade drive assembly, the upper dust collection structure 61 reaches the upper dust collection position simultaneously with the upper blade 11 and lower blade 12 reaching the cutting position, and the upper dust collection structure 61 leaves the upper dust collection position simultaneously with the upper blade 11 and lower blade 12 leaving the cutting position. Alternatively, driven by the upper dust collection drive structure and the blade drive assembly, the upper dust collection structure 61 reaches the upper dust collection position before the upper blade 11 and lower blade 12 reach the cutting position, and / or, the upper dust collection structure 61 leaves the upper dust collection position after the upper blade 11 and lower blade 12 have left the cutting position.

[0090] In one embodiment, such as Figure 21 As shown, the upper blade 11 is provided with upper dust collection structures 61 on both sides of the opposite sides along the second direction.

[0091] In one embodiment, such as Figure 21 As shown, the cutting mechanism also includes a lower dust collection structure 62, which has a lower dust collection position. The lower dust collection structure 62 is fixed to the lower dust collection position, or the lower dust collection structure 62 is movable to be closer to or further away from the lower dust collection position. Further, the lower dust collection position is located close to the cutting position.

[0092] The following describes the specific method of movable installation of the lower dust collection structure 62.

[0093] In one embodiment, such as Figure 21As shown, the lower dust collection structure 62 is connected to the lower blade 12. Therefore, the lower blade 12 can drive the lower dust collection structure 62 to move simultaneously.

[0094] Specifically, in one embodiment, when the upper blade 11 and the lower blade 12 reach the cutting position under the drive of the blade driving component, the lower dust collection structure 62 reaches the lower dust collection position. When the upper blade 11 and the lower blade 12 leave the cutting position, the lower dust collection structure 62 leaves the lower dust collection position.

[0095] In another embodiment, the lower dust collection structure 62 includes a lower dust collection section and a lower dust collection drive section. The lower dust collection drive section is connected to the lower blade 12 and is drively connected to the lower dust collection section. Driven by the lower dust collection drive section and the blade drive assembly, the lower dust collection section reaches the lower dust collection position before the upper blade 11 and lower blade 12 reach the cutting position, and / or, the lower dust collection section leaves the lower dust collection position after the upper blade 11 and lower blade 12 leave the cutting position. Therefore, before the upper blade 11 and lower blade 12 cooperate to cut at the cutting position, the lower dust collection structure 62 has already reached the lower dust collection position, enabling dust removal from the upper blade 11 and lower blade 12 before cutting; and / or, when the upper blade 11 and lower blade 12 have finished cutting and separated, the lower dust collection structure 62 is still in the lower dust collection position, enabling dust removal from the upper blade 11 and lower blade 12 after cutting. Thus, the dust collection effect can be guaranteed, and the electrode processing quality can be improved.

[0096] As an alternative implementation, the cutting mechanism also includes a lower dust collection drive structure, which is connected to the lower dust collection structure 62 in a transmission manner. That is, the lower dust collection structure 62 is not integrated with the lower blade 12, but is set separately, and is driven by an additional lower dust collection drive structure.

[0097] Furthermore, in the aforementioned alternative embodiments, driven by the lower dust collection drive structure and the blade drive assembly, the lower dust collection structure 62 reaches the lower dust collection position simultaneously with the upper blade 11 and lower blade 12 reaching the cutting position, and the lower dust collection structure 62 leaves the lower dust collection position simultaneously with the upper blade 11 and lower blade 12 leaving the cutting position. Driven by the lower dust collection drive structure and the blade drive assembly, the lower dust collection structure 62 reaches the lower dust collection position before the upper blade 11 and lower blade 12 reach the cutting position, and / or, the lower dust collection structure 62 leaves the lower dust collection position after the upper blade 11 and lower blade 12 have left the cutting position.

[0098] In one embodiment, such as Figure 21 As shown, the lower blade 12 is provided with lower dust collection structures 62 on both sides of the opposite sides along the second direction.

[0099] According to an embodiment of the present invention, another aspect provides a sheet-making apparatus, including the cutting mechanism described above.

[0100] In one embodiment, the film-making apparatus further includes a feeding fixture adapted to move the material belt between the upper blade 11 and the lower blade 12. Specifically, the feeding fixture can be a traction mechanism or a movable film-making table.

[0101] It is worth noting that the upper blade 11 and the lower blade 12 are movable along the first direction, and the feeding fixture is adapted to drive the material belt to move along the second direction between the upper blade 11 and the lower blade 12. The first direction and the second direction are arranged at an angle.

[0102] It should be noted that in this embodiment, the first direction and the second direction are perpendicular to each other. Furthermore, the first direction is vertical, and the second direction is horizontal.

[0103] It is worth noting that the electrode fabrication apparatus of this embodiment can cut the electrode strip into several electrode wafers for subsequent stacking to manufacture battery cells.

[0104] According to an embodiment of the present invention, in another aspect, a stacking device is also provided, comprising: a stacking table; the aforementioned wafer-making device disposed on the side of the stacking table; and an electrode transport device adapted to transfer between the wafer-making device and the stacking table.

[0105] According to an embodiment of the present invention, in another aspect, a battery production system is also provided, including the above-described stacking equipment.

[0106] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A cutting mechanism, characterized in that, include: The knife holder (13) includes the main body (131); Upper blade (11), the first end of the upper blade (11) is connected to the main body (131), and the second end of the upper blade (11) extends away from the main body (131) so that the upper blade (11) forms a cantilever structure; The lower blade (12) is disposed opposite to the upper blade (11). The first end of the lower blade (12) is connected to the main body (131), and the second end of the lower blade (12) extends away from the main body (131) so that the lower blade (12) forms a cantilever structure. The upper blade (11) and the lower blade (12) are adapted to move closer to or further away from each other under the drive of the blade drive assembly.

2. The cutting mechanism according to claim 1, characterized in that, The tool holder (13) further includes an upper tool holder (132), which is disposed on the side of the upper tool (11) away from the lower tool (12). The first end of the upper tool holder (132) is connected to the main body (131), and the second end of the upper tool holder (132) extends away from the main body (131). The first end of the upper tool (11) is connected to the tool body drive assembly. An upper guide structure (133) is provided between the second end of the upper tool (11) and the second end of the upper tool holder (132); and / or, The tool holder (13) further includes a lower tool holder (134), which is disposed on the side of the lower tool (12) away from the upper tool (11). The first end of the lower tool holder (134) is connected to the main body (131), and the second end of the lower tool holder (134) extends away from the main body (131). The first end of the lower tool (12) is connected to the tool body drive assembly. A lower guide structure (135) is provided between the second end of the lower tool (12) and the second end of the lower tool holder (134).

3. The cutting mechanism according to claim 2, characterized in that, The main body (131) includes a frame (1311), a guide fixing structure (1312), and a guide moving structure (1313). The guide fixing structure (1312) is connected to the frame (1311), and the guide moving structure (1313) is movably arranged along the guide fixing structure (1312). Two guide moving structures (1313) are spaced apart on the guide fixing structure (1312). The upper blade (11) and the lower blade (12) are respectively connected to the two guide moving structures (1313).

4. The cutting mechanism according to claim 3, characterized in that, The guide fixing structure (1312) is provided at intervals on the frame (1311). Each guide fixing structure (1312) is provided with two guide moving structures (1313). The upper blade (11) is connected to the upper guide moving structure (1313) on each guide fixing structure (1312), and the lower blade (12) is connected to the lower guide moving structure (1313) on each guide fixing structure (1312).

5. The cutting mechanism according to claim 4, characterized in that, Several of the aforementioned guide fixing structures (1312), as well as the upper guide structure (133) and / or the lower guide structure (135), are arranged along the same straight line; or, Several of the guide fixing structures (1312), the upper guide structure (133), and / or the lower guide structure (135) are arranged in a triangular pattern.

6. The cutting mechanism according to any one of claims 1 to 5, characterized in that, A guide fitting structure (17) is provided between the upper blade (11) and the lower blade (12). One end of the guide fitting structure (17) is connected to the second end of the upper blade (11), and the other end of the guide fitting structure (17) is connected to the second end of the lower blade (12). The guide fitting structure (17) is suitable for being fitted together or separated.

7. The cutting mechanism according to any one of claims 1 to 5, characterized in that, The tool body driving assembly includes an upper tool driving structure (15) and a lower tool driving structure (16), wherein the upper tool driving structure (15) is drivenly connected to the upper tool (11), and the lower tool driving structure (16) is drivenly connected to the lower tool (12); or, The blade drive assembly is simultaneously connected to the upper blade (11) and the lower blade (12) and is adapted to drive the upper blade (11) and the lower blade (12) to move in opposite directions at the same time.

8. The cutting mechanism according to claim 7, characterized in that, The upper blade drive structure (15) includes an upper servo motor (151), an upper lead screw (152), and an upper connecting block (153). The upper servo motor (151) is disposed on the tool holder (13) and is adapted to drive the upper lead screw (152) to rotate. The upper connecting block (153) is threadedly connected to the upper lead screw (152) and to the upper blade (11); and / or, The lower tool drive structure (16) includes a lower servo motor (161), a lower lead screw (162), and a lower connecting block (163). The lower servo motor (161) is disposed on the tool holder (13). The lower servo motor (161) is adapted to drive the lower lead screw (162) to rotate. The lower connecting block (163) is threadedly connected to the lower lead screw (162) and connected to the lower tool (12).

9. The cutting mechanism according to claim 7, characterized in that, The tool body drive assembly includes a servo motor (19) and a bidirectional lead screw (20). The upper tool (11) and the lower tool (12) are respectively connected to the bidirectional thread on the bidirectional lead screw (20). The servo motor (19) is adapted to drive the bidirectional lead screw (20) to rotate, so that the upper tool (11) and the lower tool (12) move in opposite directions; or, The tool body drive assembly includes a servo motor (19), an upper tool cam (101), an upper tool connecting rod structure (102), a lower tool cam (103), and a lower tool connecting rod structure (104). The servo motor (19) is connected to both the upper tool cam (101) and the lower tool cam (103). One end of the upper tool connecting rod structure (102) is movably connected to the peripheral wall of the upper tool cam (101), and the other end of the upper tool connecting rod structure (102) is connected to the upper tool (11). One end of the lower tool connecting rod structure (104) is movably connected to the peripheral wall of the lower tool cam (103), and the other end of the lower tool connecting rod structure (104) is connected to the lower tool (12).

10. The cutting mechanism according to any one of claims 1 to 5, characterized in that, The cutting mechanism further includes an upper dust collection structure (61), which has an upper dust collection position. The upper dust collection structure (61) is fixed to the upper dust collection position, or the upper dust collection structure (61) is movable to move closer to or further away from the upper dust collection position. And / or, The cutting mechanism further includes a lower dust collection structure (62), which has a lower dust collection position. The lower dust collection structure (62) is fixed to the lower dust collection position, or the lower dust collection structure (62) is movable to be closer to or further away from the lower dust collection position.

11. The cutting mechanism according to claim 10, characterized in that, The upper dust collection structure (61) is connected to the upper blade (11), or the cutting mechanism further includes an upper dust collection drive structure, which is drively connected to the upper dust collection structure (61); and / or, The lower dust collection structure (62) is connected to the lower blade (12), or the cutting mechanism further includes a lower dust collection drive structure, which is connected to the lower dust collection structure (62) in a transmission manner.

12. A film-making apparatus, characterized in that, The cutting mechanism includes any one of claims 1 to 11.

13. The film-making apparatus according to claim 12, characterized in that, The film-making device also includes a feeding fixture, which is adapted to move the material belt between the upper blade (11) and the lower blade (12).

14. A stacking device, characterized in that, include: Stacking table; The film-making apparatus according to claim 12 or 13 is disposed on the side of the stacking table; An electrode transport device adapted to transfer between the electrode preparation apparatus and the stacking stage.

15. A battery production system, characterized in that, Includes the stacking apparatus as described in claim 14.

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