Tab cutting device

Abstract

The utility model provides a tab cutting device, and relates to the technical field of battery manufacturing. The tab cutting device comprises a first cutting assembly, a second cutting assembly and a collecting assembly, the first cutting assembly comprises a first mounting part and a first cutter, the first cutter is fixed on the first mounting part, the second cutting assembly comprises a second mounting part and a second cutter, and the second cutter is fixed on the second mounting part; an adsorption channel is formed in one of the first mounting part and the second mounting part, and the collecting assembly is connected with the adsorption channel, so that negative pressure is formed in the adsorption channel. When tab cutting is carried out, tab cutting can be achieved through cooperation of the first cutter and the second cutter, an adsorption channel is formed in one of the first installation part and the second installation part, the collection assembly is connected with the adsorption channel, so that negative pressure is formed in the adsorption channel, and therefore chippings can be adsorbed to the collection assembly through the adsorption channel; therefore, the risk that the chippings adhere to the battery cell is reduced, and the risk that the battery cell has potential safety hazards is further reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery manufacturing, in particular to a tab cutting device. BACKGROUND

[0002] In the process of battery manufacturing, in order to meet the welding requirement, the positive tab and the negative tab of the battery cell need to be cut into a form with consistent length. However, when cutting by the tab cutting device, the tab is easily deformed and adheres to the cutter. After the cutter resets, part of the debris is carried by the cutter. Under the vibration effect of the tab cutting device, the debris is irregularly scattered and then adheres to the battery cell, which makes the battery cell have a high risk of safety hazard. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the application provides a tab cutting device to solve the problem that the debris is irregularly scattered and then adheres to the battery cell when cutting the tab, which makes the battery cell have a high risk of safety hazard.

[0004] The application provides a tab cutting device, which comprises a first cutting assembly, a second cutting assembly and a collecting assembly. The first cutting assembly comprises a first mounting piece and a first cutter, and the first cutter is fixed on the first mounting piece. The second cutting assembly comprises a second mounting piece and a second cutter, and the second cutter is fixed on the second mounting piece.

[0005] One of the first mounting piece and the second mounting piece is formed with a suction channel, and the collecting assembly is connected with the suction channel to form negative pressure in the suction channel.

[0006] Preferably, the first mounting piece and the second mounting piece are arranged at intervals along a first direction. The first cutting assembly further comprises a mounting seat. The first mounting piece is provided with a mounting groove penetrating through the first mounting piece along the first direction. The groove wall of the mounting groove surrounds the suction channel. The collecting assembly is connected with the first mounting piece.

[0007] The mounting seat is fixed on the groove wall of the mounting groove, and the first cutter is connected with the mounting seat.

[0008] Preferably, the first cutting assembly further comprises a first shielding piece. The first shielding piece is fixed on the first mounting piece, and at least part of the first shielding piece protrudes towards the second cutting assembly relative to the first mounting piece.

[0009] Preferably, the second mounting piece is provided with a blowing hole. One end of the blowing hole faces the second cutter, and the other end of the blowing hole is used to be connected with a gas source.

[0010] Preferably, the first cutter comprises a first cut and a second cut opposite to each other in the first direction, and the second cutter comprises a first blade and a second blade opposite to each other in the first direction.

[0011] The first cutter is detachably connected with the mounting seat, and the second cutter is detachably connected with the second mounting member, so that one of the first cut and the second cut faces one of the first blade and the second blade.

[0012] Preferably, the tab cutting device further comprises a connecting plate, at least one of the first mounting member and the second mounting member is in sliding connection with the connecting plate, so that at least one of the first mounting member and the second mounting member can move along the first direction.

[0013] Preferably, the first cutting assembly further comprises a first driving member and a first abutting member, the first driving member can drive the first mounting member to move along the first direction, and the first abutting member is fixed on the first mounting member.

[0014] The tab cutting device further comprises a first limiting member fixed on the connecting plate, and the first abutting member can abut against the first limiting member.

[0015] Preferably, the second cutting assembly further comprises a second driving member and a second abutting member, the second driving member can drive the second mounting member to move along the first direction, and the second abutting member is fixed on the second mounting member.

[0016] The tab cutting device further comprises a second limiting member fixed on the connecting plate, and the second abutting member can abut against the second limiting member.

[0017] Preferably, the collecting assembly comprises a vacuum element and a collecting box, one end of the vacuum element is connected with the first mounting member, and the other end of the vacuum element is connected with the collecting box.

[0018] Preferably, the tab cutting device further comprises a moving assembly connected with the connecting plate, and the moving assembly can drive the connecting plate to move.

[0019] When the tab cutting device is used to cut tabs, the first cutter and the second cutter can cooperate to cut the tabs, one of the first mounting member and the second mounting member forms a suction channel, the collecting assembly is connected with the suction channel to form a negative pressure in the suction channel, so that the debris can be adsorbed to the collecting assembly through the suction channel, thereby reducing the risk of the debris sticking to the battery cell, and further reducing the risk of the battery cell having a safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 A structure schematic diagram of the tab cutting device of the embodiment of the present application is shown.

[0022] Figure 2 A structure schematic diagram of the first cutting assembly is shown.

[0023] Figure 3 An exploded view of the first cutting assembly is shown.

[0024] Figure 4 A structure schematic diagram of the second cutting assembly is shown.

[0025] Figure 5 An exploded view of the second cutting assembly is shown.

[0026] Figure 6 A relative position diagram of the first cutting assembly and the second cutting assembly is shown.

[0027] Figure 7 A structure schematic diagram of the moving assembly is shown.

[0028] Figure 8 A structure schematic diagram of the collecting assembly is shown.

[0029] Figure: 1-First cutting assembly; 11-First mounting piece; 111-Setting groove; 12-First cutter; 121-First cutout; 122-Second cutout; 13-Mounting seat; 14-Locking block; 15-First shielding piece; 16-First driving piece; 17-First abutting piece; 18-First sliding block; 19-Stabilizing block; 2-Second cutting assembly; 21-Second mounting piece; 211-Recess; 212-Blowing hole; 22-Second cutter; 221-First knife edge; 222-Second knife edge; 23-Air pipe joint; 24-Second shielding piece; 25-Second driving piece; 26-Second abutting piece; 27-Second sliding block; 3-Collecting assembly; 31-Vacuum element; 32-Collecting box; 33-Connecting pipe; 34-Corrugated pipe; 4-Moving assembly; 41-Fixed plate; 42-Servo motor; 43-Screw module; 5-First limiting piece; 6-Connecting plate; 7-Linking plate; 8-Sliding rail; L1-First direction; L2-Second direction; L3-Third direction. DETAILED DESCRIPTION

[0030] The following detailed description is presented to aid the reader in gaining a comprehensive understanding of the methods, apparatuses, and / or systems described herein. However, various changes, modifications, and equivalents can be used, and thus particular embodiments described herein are not intended as being exhaustive of what the present disclosure can provide. For example, although processes are described with regard to the present disclosure, such processes can include more, fewer, or only a single process. Additionally, some processes can not be implemented even though they are described. Moreover, although processes are described herein as various separate processes, which can be performed by different systems, such processes can not necessarily be performed by different systems and the order of some processes can be changed, including that certain processes could be performed in an iterative or parallel manner. Additionally, various features that are described herein can be implemented as hardware, software, firmware, or combinations thereof, and can be implemented within one or more processors or external to one or more processors, including being implemented across multiple processors. Further, it will be appreciated that features described herein as being implemented with or across one or more processors can be implemented by one or more other processors.

[0031] The features described herein can be implemented in different forms and are not to be construed as limited to the examples described herein. Rather, the described examples have been provided for illustrative purposes so that those skilled in the art will be able to implement the methods, apparatuses, and / or systems described herein in a variety of ways.

[0032] Throughout the specification, when an element (such as a layer, region, or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "adjacent to" another element, "on top of" another element, or "covering" another element, it can be directly on, connected to, coupled to, adjacent to, on top of, or covering the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to," "directly adjacent to," "directly on top of," or "directly covering" another element, there are no other elements interposed therebetween.

[0033] As used herein, the term "and / or" includes any one of the listed items and any combination of two or more of the listed items.

[0034] Although terms such as "first" and "second" can be used herein to describe various elements, components, regions, layers, or sections, these elements, components, regions, layers, or sections are not limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, a first element, component, region, layer, or section described in one example described herein can also be called a second element, component, region, layer, or section without departing from the teachings of the examples.

[0035] For ease of description, spatial terms, such as "on", "upper", "below", and "lower" can be used herein with respect to the orientation of one element relative to another element as shown in the drawings. Such spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, then a component that was described as on or above other components would then be oriented on or below the other components. Accordingly, the term "on" encompasses both a position that is above and a position that is below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatial terms used herein interpreted accordingly.

[0036] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein, are specifically intended to be construed as open-ended terms (i.e., the terms do not exclude the presence of other elements or options). The term "coupled" as used herein is intended to mean the direct or indirect coupling between elements, and can include electrical coupling, optical coupling, magnetic coupling, or any combination thereof.

[0037] Variations in the shapes of the elements shown in the drawings can occur because of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise shapes shown in the drawings, but include variations in shapes that occur because of manufacturing processes and / or tolerances.

[0038] Features of the examples described herein can be combined with each other as would be apparent to one of ordinary skill in the art having the benefit of the present disclosure. Furthermore, although exemplary examples are provided herein, other examples that would be apparent to one of ordinary skill in the art having the benefit of the present disclosure are intended to be within the scope of this disclosure.

[0039] The following will be described in conjunction with Figures 1 to 8 The tab cutting device provided by the present disclosure is described, and Figures 1 to 8 In the present disclosure, the first direction L1 and the second direction L2 intersect, and the third direction L3 intersects the plane determined by the first direction L1 and the second direction L2, wherein the intersection can be perpendicular. The following will be described in conjunction with the first direction L1, the second direction L2, and the third direction L3 being perpendicular to each other as an example.

[0040] As Figures 1 to 8As shown, the tab cutting device includes a first cutting assembly 1, a second cutting assembly 2 and a collection assembly 3, the first cutting assembly 1 includes a first mounting member 11 and a first cutter 12, the first cutter 12 is fixed on the first mounting member 11, the second cutting assembly 2 includes a second mounting member 21 and a second cutter 22, the second cutter 22 is fixed on the second mounting member 21; one of the first mounting member 11 and the second mounting member 21 is formed with a suction channel, the collection assembly 3 is connected with the suction channel, so that a negative pressure is formed in the suction channel. When the tab cutting device of the present application is used to cut the tab, the first cutter 12 and the second cutter 22 can cooperate to cut the tab, one of the first mounting member 11 and the second mounting member 21 is formed with a suction channel, the collection assembly 3 is connected with the suction channel, so that a negative pressure is formed in the suction channel, which enables the debris to be adsorbed into the collection assembly 3 through the suction channel, thereby reducing the risk of debris sticking to the battery cell, and further reducing the risk of the battery cell having a safety hazard.

[0041] In the embodiment of the present application, the first mounting member 11 is formed with a suction channel, specifically, as shown in Figure 2 and Figure 3 The first mounting member 11 is in a block shape, a placement slot 111 penetrating through the first mounting member 11 in the first direction L1 is formed on the first mounting member 11, the slot wall of the placement slot 111 surrounds the suction channel, the collection assembly 3 can be connected with the side of the first mounting member 11 away from the second mounting member 21, so that the collection assembly 3 is in communication with the suction channel, thereby forming a negative pressure in the suction channel, so that the debris can be adsorbed into the collection assembly 3 through the suction channel.

[0042] Alternatively, the suction channel can also be formed on the second mounting member 21, specifically, a through slot penetrating through the second mounting member 21 in the first direction L1 can be formed on the second mounting member 21, the slot wall of the through slot surrounds the suction channel, the collection assembly 3 is connected with the side of the second mounting member 21 away from the first mounting member 11, so that the collection assembly 3 is in communication with the suction channel, thereby forming a negative pressure in the suction channel, at this time the suction force generated by the collection assembly 3 can overcome the gravity of the debris to enable the debris to be adsorbed into the collection assembly 3 through the suction channel. When the suction channel is formed on the second mounting member 21, the air blowing hole 212 described below can not be formed on the second mounting member 21.

[0043] Further, the placement slot 111 is formed with two first openings opposite to each other in the first direction L1, one of the first openings faces the second cutting assembly 2, and the other first opening is in communication with the collection assembly 3. The placement slot 111 is formed with a second opening on one side in the second direction L2, and the first cutter 12 is fixed on the first mounting member 11 to block the second opening.

[0044] As shown in Figure 2 and Figure 3As shown, the first cutting assembly 1 further comprises a mounting seat 13 fixed on the slot wall of the installation slot 111, one side of the mounting seat 13 in the second direction L2 is exposed through the second opening, so as to facilitate the connection of the first cutter 12 and the mounting seat 13.

[0045] Further, the first cutting assembly 1 further comprises a locking block 14, the locking block 14 and the mounting seat 13 clamp the first cutter 12, and then the first cutter 12 is fixed by the screw passing through the locking block 14, the first cutter 12 and the mounting seat 13. By cooperating the mounting seat 13 and the locking block 14 to fix the first cutter 12, the stability of fixing the first cutter 12 can be ensured to prevent the first cutter 12 from loosening.

[0046] Optionally, the number of the mounting seat 13 is three, the three mounting seats 13 are arranged at intervals along the third direction L3, thereby dividing the adsorption channel into two parts. The number of the first cutter 12 and the locking block 14 is two, the two ends of the first first cutter 12 are fixed on the mounting seat 13 located at the edge and the mounting seat 13 located in the middle through the first locking block 14, the two ends of the second first cutter 12 are fixed on the other mounting seat 13 located at the edge and the mounting seat 13 located in the middle through the second locking block 14, and the two first cutters 12 correspond to the two parts of the adsorption channel respectively.

[0047] Preferably, the mounting seat 13 is made of PEEK (polyether ether ketone) material, so that the mounting seat 13 can prevent the short circuit problem by preventing the contact between the terminal tab and other steel members.

[0048] In addition, the first cutter 12 comprises a first cut 121 and a second cut 122 opposite to each other in the first direction L1, the first cutter 12 is detachably connected with the mounting seat 13 through the locking block 14 and the screw, and the first cut 121 and the second cut 122 can be used for cutting the terminal tab. When one of the first cut 121 and the second cut 122 is worn out, the first cutter 12 can be rotated by 180 degrees to make the other of the first cut 121 and the second cut 122 face the second cutter 22, thereby improving the service life of the first cutter 12.

[0049] Optionally, the first cutter 12 can be made of CD650 or ceramic material, which can avoid the problem of short circuit of the battery caused by the debris and the terminal tab debris on the first cutter 12.

[0050] As Figure 2 and Figure 3As shown, the first cutting assembly 1 further comprises a first shielding piece 15 fixed on the first mounting piece 11, at least part of the first shielding piece 15 protrudes towards the second cutting assembly 2 relative to the first mounting piece 11, and the first shielding piece 15 can block the splashing of the cut-off tab.

[0051] Preferably, the first shielding piece 15 covers both sides of the first mounting piece 11 in the third direction L3 and the side of the first mounting piece 11 in the second direction L2 which is away from the first cutter 12, and part of the first shielding piece 15 located on the side of the first mounting piece 11 in the second direction L2 which is away from the first cutter 12 protrudes towards the second cutting assembly 2 relative to the first mounting piece 11 in the first direction L1.

[0052] As shown in Figure 2 , Figure 3 and Figure 6 , the first cutting assembly 1 further comprises a first driving piece 16, the first mounting piece 11 is connected with the first driving piece 16, and the first mounting piece 11 is connected with a first sliding block 18 arranged on a sliding rail 8 on the connecting plate 6, the first driving piece 16 can drive the first sliding block 18 to move along the sliding rail 8, so as to drive the first mounting piece 11 and the first cutter 12 fixed on the first mounting piece 11 to move, thereby realizing the cutting of the tab.

[0053] Further, the first cutting assembly 1 further comprises a stabilizing block 19 fixed on the first mounting seat 13 and a first abutting piece 17 fixed on the stabilizing block 19, and the tab cutting device further comprises a first limiting piece 5 fixed on the connecting plate 6, and the first abutting piece 17 can abut against the first limiting piece 5. When the first abutting piece 17 abuts against the first limiting piece 5, the first mounting piece 11 can no longer move, and thus the movement of the first mounting piece 11 can be limited by the cooperation of the first limiting piece 5 and the first abutting piece 17. Optionally, the first abutting piece 17 and the first limiting piece 5 are both block-shaped structures.

[0054] In the embodiments of the present application, as shown in Figure 4 , Figure 5 and Figure 6 , the second mounting piece 21 can be a block-shaped structure, and a recessed portion 211 is formed on the side of the second mounting piece 21 which is away from the connecting plate 6 in the second direction L2, and the second cutter 22 is fixed on the second mounting piece 21 by screws, so that part of the second cutter 22 is located in the recessed portion 211. Optionally, the number of the second cutter 22 can be two, and the two second cutters 22 correspond to the two first cutters 12 respectively.

[0055] As shown in the figure, the second cutter 22 includes a first blade 221 and a second blade 222 which are opposite to each other in the first direction L1, and the second cutter 22 is detachably connected to the second mounting member 21 by a screw, and the first blade 221 and the second blade 222 can be used to cut the tab. When one of the first blade 221 and the second blade 222 is worn, the second cutter 22 can be rotated by 180 degrees so that the other of the first blade 221 and the second blade 222 faces the first cutter 12, thereby improving the service life of the second cutter 22.

[0056] Optionally, the second cutter 22 can be made of CD650 or ceramic material, which can avoid the problem of short circuit of the battery when the debris and tab waste fall on the second cutter 22. The first blade 221 and the second blade 222 can be beveled to facilitate quick and accurate cutting of the tab, so that the cut of the tab is flat and has no burr.

[0057] Further, the second mounting member 21 is provided with a blowing hole 212, one end of the blowing hole 212 faces the second cutter 22, and the other end of the blowing hole 212 is used to be connected with a gas source. When cutting the tab, the second cutter 22 can be blown by the blowing hole 212 to prevent the tab from sticking to the second cutter 22.

[0058] Optionally, the second mounting member 21 is provided with two gas pipe joints 23, and the second mounting member 21 can be provided with a plurality of blowing holes 212, and the plurality of blowing holes 212 can be divided into two groups, the blowing holes 212 in one group are connected with one gas pipe joint 23, and the blowing holes 212 in the other group are connected with the other gas pipe joint 23, and the two gas pipe joints 23 can be connected with the gas source through a connecting pipe 33, thereby blowing the second cutter 22.

[0059] As shown in the figures Figure 4 and Figure 5 , the first cutting assembly 1 further includes two second shielding members 24, the second shielding members 24 are in the form of a sheet, and the two second shielding members 24 are respectively fixed on both sides of the second mounting member 21 in the third direction L3, and at least part of the second shielding members 24 protrudes towards the first cutting assembly 1 relative to the second mounting member 21, and by providing the second shielding members 24, the cut-off tab can be blocked.

[0060] As shown in the figures Figure 4 , Figure 5 and Figure 6As shown, the second cutting assembly 2 further comprises a second driving member 25, the second mounting member 21 is connected with the second driving member 25, and the second mounting member 21 is connected with a second sliding block 27 arranged on the slide rail 8 on the connecting plate 6, the second driving member 25 can drive the second sliding block 27 to move along the slide rail 8, so as to drive the second mounting member 21 and the second cutter 22 fixed on the second mounting member 21 to move, thereby realizing the cutting of the tab.

[0061] Further, the second cutting assembly 2 further comprises a second abutting member 26 fixed on the second mounting member 21, and the tab cutting device further comprises a second limiting member (not shown) fixed on the connecting plate 6, and the second abutting member 26 can abut against the second limiting member. Figures 1 to 8

[0062] Preferably, the first driving member 16 and the second driving member 25 are both air cylinders.

[0063] When cutting the tab, the first cutting assembly 1 moves so that the first cutter 12 is in contact with the lower surface of the tab, and then the second cutting assembly 2 drives the second cutter 22 to move towards the first cutter 12, thereby realizing the cutting of the tab.

[0064] Alternatively, only one of the first cutting assembly 1 and the second cutting assembly 2 can move, and the cutting of the tab can also be realized.

[0065] In the embodiment of the present application, as shown in Figure 1 , Figure 6 and Figure 7 , the tab cutting device further comprises a moving assembly 4 and a linking plate 7, the moving assembly 4 is connected with the connecting plate 6 through the linking plate 7, and the moving assembly 4 can drive the connecting plate 6 to move, thereby realizing the adjustment of the positions of the first cutting assembly 1 and the second cutting assembly 2, so as to facilitate the cutting of the tab.

[0066] As shown in Figure 7 , the moving assembly 4 comprises a fixed plate 41, a servo motor 42 and a lead screw module 43, the servo motor 42 and the lead screw module 43 are both fixed on the fixed plate 41, the servo motor 42 is connected with the lead screw module 43, and the lead screw module 43 is connected with the linking plate 7, thereby driving the linking plate 7, the connecting plate 6, the first cutting assembly 1 and the second cutting assembly 2 to move along the second direction L2.

[0067] Alternatively, two photoelectric sensors (not shown) can be arranged on the fixed plate 41. Figures 1 to 8 ​The two photoelectric sensors are arranged along the second direction L2, and the servo motor 42 stops working when the photoelectric sensor detects the lead screw module 43.

[0068] Optionally, the tab cutting device can further comprise an adjusting assembly connected with the fixing plate 41 to drive the fixing plate 41 to move along the third direction L3, so as to adjust the positions of the first cutting assembly 1 and the second cutting assembly 2 along the third direction L3, so that the tab cutting device can be more compatible with different products. The driving principle of the adjusting assembly is similar to that of the moving assembly 4, which will not be described here.

[0069] As shown in Figure 8 The collecting assembly 3 comprises a vacuum element 31, a collecting box 32, a connecting pipe 33 and a bellows 34. One end of the vacuum element 31 is connected with the first mounting member 11, and the other end of the vacuum element 31 is connected with the collecting box 32 through the connecting pipe 33 and the bellows 34. The connecting pipe 33 can be screwed on the first mounting member 11. When cutting the tab, the vacuum element 31 can generate negative pressure in the suction channel, so that the cut tab falls into the collecting box 32 through the suction channel, the connecting pipe 33 and the bellows 34, so as to reduce the risk of the cut tab sticking to the battery cell, thereby reducing the risk of the battery cell having a safety hazard. In addition, the operator can clean the collecting box 32 regularly to ensure that the collecting box 32 can accommodate the debris.

[0070] Optionally, the bellows 34 can be a transparent pipe, and the connecting pipe 33 can be a square pipe.

[0071] When the tab cutting device of the present application is used to cut the tab, the moving assembly 4 drives the first cutting assembly 1 and the second cutting assembly 2 to reach the position of the tab, and then the first cutting assembly 1 moves to the first cutter 12 to be attached to the lower surface of the tab, and the second cutting assembly 2 drives the second cutter 22 to move towards the first cutter 12, so as to cut the tab. During the cutting process, air is blown to the second cutter 22 through the air blowing hole 212 to avoid the tab sticking to the second cutter 22. At the same time, during the cutting process, the vacuum element 31 works to collect the cut debris into the collecting box 32.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for part or all of the technical features. Such modifications or substitutions do not change the essence of the corresponding technical solutions out of the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tab cutting device, characterized by, The tab cutting device comprises a first cutting assembly, a second cutting assembly and a collecting assembly, the first cutting assembly comprises a first mounting member and a first cutter, the first cutter is fixed on the first mounting member, the second cutting assembly comprises a second mounting member and a second cutter, the second cutter is fixed on the second mounting member; One of the first mounting member and the second mounting member is formed with a suction channel, the collecting assembly is connected with the suction channel to form negative pressure in the suction channel.

2. The tab cutting apparatus according to claim 1, characterized by The first mounting member and the second mounting member are arranged in a first direction, the first cutting assembly further comprises a mounting seat, the first mounting member is provided with a mounting groove penetrating through the first mounting member along the first direction, a groove wall of the mounting groove surrounds the suction channel, and the collecting assembly is connected with the first mounting member; The mounting seat is fixed on the groove wall of the mounting groove, and the first cutter is connected with the mounting seat.

3. The tab cutting apparatus according to claim 2, characterized by, The first cutting assembly further comprises a first shielding member, the first shielding member is fixed on the first mounting member, and at least part of the first shielding member protrudes towards the second cutting assembly relative to the first mounting member.

4. The tab cutting apparatus according to claim 2, wherein The second mounting member is provided with a blowing hole, one end of the blowing hole faces the second cutter, and the other end of the blowing hole is used for being connected with a gas source.

5. The tab trimming apparatus according to any one of claims 2 to 4, characterized by, The first cutter comprises a first cutout and a second cutout opposite to each other in the first direction, and the second cutter comprises a first cutter and a second cutter opposite to each other in the first direction; The first cutter is detachably connected with the mounting seat, and the second cutter is detachably connected with the second mounting member, so that one of the first cutout and the second cutout faces one of the first cutter and the second cutter.

6. The tab trimming apparatus of claim 2, wherein The tab cutting device further comprises a connecting plate, at least one of the first mounting member and the second mounting member is slidingly connected with the connecting plate, so that at least one of the first mounting member and the second mounting member can move in the first direction.

7. The tab trimming apparatus according to claim 6, wherein The first cutting assembly further comprises a first driving member and a first abutting member, the first driving member can drive the first mounting member to move in the first direction, and the first abutting member is fixed on the first mounting member; The tab cutting device further comprises a first limiting member, the first limiting member is fixed on the connecting plate, and the first abutting member can abut against the first limiting member.

8. The tab cutting apparatus according to claim 6 or 7, characterized by The second cutting assembly further comprises a second driving member and a second abutting member, the second driving member can drive the second mounting member to move in the first direction, and the second abutting member is fixed on the second mounting member; The tab cutting device further comprises a second limiting member, the second limiting member is fixed on the connecting plate, and the second abutting member can abut against the second limiting member.

9. The tab trimming apparatus of claim 2, wherein, The collecting assembly comprises a vacuum element and a collecting box, one end of the vacuum element is connected with the first mounting member, and the other end of the vacuum element is connected with the collecting box.

10. The tab trimming apparatus of claim 6, wherein, The tab cutting device further comprises a moving assembly connected with the connecting plate, and the moving assembly can drive the connecting plate to move.

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