Cutting assembly and pre-cutting mechanism, accurate cutting mechanism and edge cutting device of soft package battery

Abstract

The utility model relates to a cutting assembly and a pre-cutting mechanism, an accurate cutting mechanism and an edge cutting device of a soft package battery. The cutting assembly comprises a first cutter, a second cutter and a second cutter driving structure, wherein the first cutter and the second cutter are oppositely arranged, and the second cutter driving structure is connected with the second cutter and used for driving the second cutter to move towards the first cutter. The first cutter is provided with an object carrying surface abutting against a workpiece and a cutting surface perpendicular to the object carrying surface; in the process that the second cutter moves to the first cutter along the working face parallel to the cutting face, the part, protruding out of the cutting face, of the workpiece on the carrying face is cut off; the device further comprises a pressing structure arranged on the second cutter, the pressing structure comprises a pressing plate capable of moving back and forth relative to the second cutter in the direction parallel to the working face, the pressing plate protrudes out of the second cutter in the direction that the second cutter moves towards the first cutter, and the pressing plate is provided with an abutting face parallel to the object carrying face. In the process that the second cutter moves towards the first cutter along the working face, the abutting face abuts against the object carrying face firstly. The cutting assembly is simple in structure, high in practicability and good in economical efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing equipment, in particular to a cutting assembly, a pre-cutting mechanism and a fine-cutting mechanism of a soft-pack battery with the cutting assembly, and a trimming device of a soft-pack battery including the pre-cutting mechanism and the fine-cutting mechanism. Background Art

[0002] In the production and processing of some workpieces (such as soft-pack batteries), it is necessary to trim the sides of the workpieces to facilitate further processing. However, the current trimming device cannot fix the workpieces well during trimming, so the workpieces are prone to displacement during trimming, resulting in an uneven trimming surface, affecting the trimming effect, and further affecting the quality of the final product. Summary of the Utility Model

[0003] Based on this, the purpose of the utility model is, on the one hand, to provide a cutting assembly, which can ensure that the workpiece does not shake during cutting and improve the cutting effect.

[0004] A cutting assembly includes a first cutter and a second cutter arranged oppositely, and a second cutter driving structure connected to the second cutter and used to drive the second cutter to move towards the first cutter; the first cutter has a loading surface that can abut against the workpiece and a cutting surface perpendicular to the loading surface; the second cutter moves towards the first cutter along an operating surface parallel to the cutting surface and cuts off the part of the workpiece protruding from the cutting surface placed on the loading surface; it further includes a pressing structure arranged on the second cutter, the pressing structure includes a pressing plate that can move back and forth relative to the second cutter along a direction parallel to the operating surface, the pressing plate protrudes from the second cutter along the direction in which the second cutter moves towards the first cutter, the pressing plate has a pressing surface parallel to the loading surface, and during the process that the second cutter moves towards the first cutter along the operating surface, the pressing surface abuts against the loading surface to clamp the workpiece placed on the loading surface.

[0005] The cutting assembly of the utility model presses the workpiece before the second cutter and the first cutter cooperate to cut the workpiece through the pressing structure arranged on the second cutter to fix the position of the workpiece, ensuring that the workpiece does not shake or displace during the cutting process, so that the workpiece can be accurately cut, the cutting surface of the workpiece after cutting is flat, and the cutting effect is improved.

[0006] Further, the pressing structure further includes a pressing plate reset elastic member. A receiving groove is provided on the side of the second cutter facing the pressing plate, and a receiving hole is provided at the position of the pressing plate corresponding to the receiving groove. The receiving groove and the receiving hole form a receiving cavity for receiving the pressing plate reset elastic member. One end of the pressing plate reset elastic member is fixedly connected to the second cutter and abuts against the pressing plate, and the other end abuts against the second cutter and the pressing plate respectively.

[0007] Further, the second cutter driving structure includes a second cutter driving cylinder. The movable rod of the second cutter driving cylinder is parallel to the working surface and is fixedly connected to the second cutter to drive the second cutter to move along the working surface towards the first cutter.

[0008] Further, the second cutter driving structure further includes a movable plate, a guiding column parallel to the direction in which the second cutter moves towards the first cutter and passing through the movable plate, a guide post sleeved on the outer peripheral side of the guiding column and slidable along the axial direction of the guiding column, and a guide sleeve cooperating with the guide post and slidable relative to the guide post along the axial direction of the guiding column; the guide sleeve is fixedly connected to the movable plate; the second cutter is fixed to the movable plate, and the movable rod of the second cutter driving cylinder is fixedly connected to the movable plate to drive the movable plate so that the second cutter moves along the working surface towards the first cutter.

[0009] Further, the cutting assembly further includes a stage for carrying the workpiece. The stage is arranged on one side of the first cutter along the first direction; a positioning structure is provided on the stage. The positioning structure includes two first side positioning blocks respectively arranged on opposite sides of the stage along the first direction, and two second side positioning blocks respectively arranged on opposite sides of the stage along the second direction. Wherein, at least one of the first side positioning blocks can move back and forth along the first direction, and at least one of the second side positioning blocks can move back and forth along the second direction; wherein, the second direction is perpendicular to the first direction.

[0010] On the other hand, the present invention also provides a pre-cutting mechanism for a soft-pack battery, which is used to cut off the airbag bag of the soft-pack battery, including a supporting bottom plate, a cutting support frame arranged on the supporting bottom plate, and the above-mentioned cutting assembly; the stage is arranged on the supporting bottom plate and is located on one side of the cutting support frame along the first direction, and the first cutter, the second cutter and the second cutter driving structure are all installed on the cutting support frame.

[0011] Further, the pre-cutting mechanism of the soft-pack battery further includes a stage moving assembly for driving the stage to move along the first direction. The stage moving assembly includes a stage moving guide rail disposed on the support bottom plate and extending along the first direction, a stage moving slider slidably engaged with the stage moving guide rail, stage driving wheels respectively disposed at two ends of the stage moving guide rail along the first direction, a stage driving belt engaged with the two stage driving wheels for transmission, a stage clamping block clamped on the stage driving belt, and a stage moving motor; the stage moving motor has an output shaft, and the output shaft is fixedly connected to the axis of one of the stage driving wheels to drive the stage driving wheel to rotate; the stage is fixed to the stage moving slider and fixedly connected to the clamping block.

[0012] Further, the stage is further provided with an adsorption structure to generate an adsorption force on the soft-pack battery placed on the stage.

[0013] On the other hand, the present invention further provides a fine-cutting mechanism for a soft-pack battery, which is used for cutting the side edges of the soft-pack battery, and includes a support bottom plate, a cutting support frame disposed on the support bottom plate, and a cutting assembly as described above; the stage is disposed on the support bottom plate and is located on one side of the cutting support frame along the first direction, and the first cutting knife, the second cutting knife, and the second cutting knife driving structure are all installed on the cutting support frame.

[0014] On yet another aspect, the present invention further provides a side-edge cutting device for a soft-pack battery, which includes a pre-cutting mechanism as described in any one of the above, two fine-cutting mechanisms as described above, and a cutting and conveying mechanism; the two fine-cutting mechanisms are respectively a first fine-cutting mechanism and a second fine-cutting mechanism; the first fine-cutting mechanism and the second fine-cutting mechanism are mirror-symmetrical structures and are sequentially disposed downstream of the pre-cutting mechanism along the second direction to respectively cut the two side edges of the soft-pack battery along the first direction; the cutting and conveying mechanism is used to transfer the soft-pack battery from the stage of the pre-cutting mechanism to the stage of the first fine-cutting mechanism in sequence, and then to the stage of the second fine-cutting mechanism.

[0015] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the cutting assembly of the present invention;

[0017] Figure 2 It is a three-dimensional view of an embodiment of the cutting assembly of the present invention installed on the cutting support frame;

[0018] Figure 3Partial enlarged view of an embodiment of the cutting component of the present utility model installed on the cutting support frame;

[0019] Figure 4 Cross-sectional view of the second cutting knife and the pressing structure in an embodiment of the cutting component of the present utility model;

[0020] Figure 5 Schematic structural diagram of another embodiment of the cutting component of the present utility model (with a carrier);

[0021] Figure 6 Stereogram of the carrier and the positioning structure of the carrier in another embodiment of the cutting component of the present utility model;

[0022] Figure 7 Schematic structural diagram of a soft-pack battery;

[0023] Figure 8 Stereogram of an embodiment of the pre-cutting mechanism of the present utility model;

[0024] Figure 9 Stereogram of an embodiment of the pre-cutting mechanism of the present utility model (from another angle);

[0025] Figure 10 Stereogram of an embodiment of the edge-cutting device of the present utility model;

[0026] Figure 11 Stereogram of the first precision cutting mechanism and the second precision cutting mechanism which are mirror-image structures in the edge-cutting device of the soft-pack battery of the present utility model;

[0027] Figure 12 Position relationship diagram of the pre-cutting mechanism, the first precision cutting mechanism, the second precision cutting mechanism and the cutting and conveying mechanism in the edge-cutting device of the soft-pack battery of the present utility model;

[0028] Figure 13 Partial enlarged view of the cutting and conveying structure in the edge-cutting device of the soft-pack battery of the present utility model;

[0029] Reference numerals:

[0030] 10. Soft-pack battery; 10a. Battery body of the soft-pack battery; 10b. Airbag bag of the soft-pack battery; 10c. Ear of the soft-pack battery;

[0031] 400. Cutting component; 4000. Carrying platform; 4001. First cutting knife; 4001a. Object-carrying surface; 4001b. Cutting surface; A. Working surface; 4002. Second cutting knife; 4002a. Accommodating groove; 40040. Second cutting knife driving cylinder; 40042. Movable plate; 40044. Guide post; 40048. Guide sleeve; 40049. Guide post limiting spring; 4006. Pressing structure; 40060. Pressing plate; 40060a. Pressing surface; 40060b. Accommodating hole; 40062. Limiting plate; 40064. Pressing plate reset elastic member; 40066. Elastic member abutting block; 40081. First side positioning block; 40082. Second side positioning block; 401. Support bottom plate; 402. Cutting support frame; 4021. Lower support plate; 4022. Upper support plate; 4024. Vertical support plate; 4040. Carrying platform slide rail; 4042. Carrying platform slider; 4044. Carrying platform driving wheel; 4046. Carrying platform transmission belt; 4048. Carrying platform driving motor; 4049. Transmission belt clamping block; 406. Waste discharge bucket; 408. Liquid receiving box;

[0032] 4. Edge cutting device; 40. Pre-cutting mechanism; 41. Fine cutting mechanism; 42. First fine cutting mechanism; 44. Second fine cutting mechanism; 46. Cutting and conveying mechanism; 460. Cutting and transferring bracket; 462. Cutting and transferring manipulator; 4620. Suction cup assembly; 464. Linear motor. Detailed implementation manners

[0033] It should be clear that the described embodiments are only some of the embodiments of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the embodiments of the present application without creative efforts belong to the scope protected by the embodiments of the present application.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" or "fixedly connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0036] Figure 1 shows the specific structure of an embodiment of the cutting component of the present utility model. As Figure 1 shown, in this embodiment, the cutting component 400 includes a first cutting knife 4001 and a second cutting knife 4002 which are oppositely arranged, and a second cutting knife driving structure connected to the second cutting knife 4002 and used to drive the second cutting knife 4002 to move downward towards the first cutting knife 4001.

[0037] Specifically, the first cutting knife 4001 has a loading surface 4001a that can abut against the workpiece and a cutting surface 4001b perpendicular to the loading surface 4001a. The second cutting knife driving structure includes a second cutting knife driving cylinder 40040. The movable rod of the second cutting knife driving cylinder 40040 is vertically downward and is connected to the second cutting knife 4002. During cutting, the workpiece is placed on the loading surface 4001a and extends between the second cutting knife 4002 and the first cutting knife 4001. When the second cutting knife driving cylinder 40040 drives the second cutting knife 4002 to move towards the first cutting knife 4001 along the working surface A parallel to the cutting surface 4001b, the part of the workpiece protruding from the cutting surface 4001b on the loading surface 4001a is cut off.

[0038] Since the area of the loading surface 4001a of the first cutting knife 4001 is limited, the workpiece placed on the loading surface 4001a is prone to shaking. Therefore, in order to fix the position of the workpiece before cutting to ensure accurate cutting, the above-mentioned cutting component 400 further includes a pressing structure 4006 arranged on the second cutting knife 4002. The pressing structure 4006 specifically includes a pressing plate 40060. The pressing plate 40060 is located on the side of the second cutting knife 4002 close to the first cutting knife 4001 along the direction parallel to the loading surface 4001a and can slide up and down relative to the second cutting knife 4002. The pressing plate 40060 protrudes from the second cutting knife 4002 along the direction in which the second cutting knife 4002 moves towards the first cutting knife 4001. The bottom surface of the pressing plate 40060 is a pressing surface 40060a parallel to the loading surface 4001a of the first cutting knife 4001. When the second cutting knife 4002 moves towards the first cutting knife 4001 along the working surface A, the pressing surface 40060a of the pressing plate 40060 first abuts against the loading surface 4001a of the first cutting knife 4001. Thus, when the loading surface 4001a is placed with the workpiece to be cut, the pressing plate 40060 contacts the workpiece prior to the second cutting knife 4002 and cooperates with the loading surface 4001a of the first cutting knife 4001 to clamp the workpiece. Then, the second cutting knife 4002 continues to move towards the first cutting knife 4001 relative to the pressing plate 40060 along the working surface A and cooperates with the cutting surface 4001b of the first cutting knife 4001 to cut off the part of the workpiece protruding from the cutting surface 4001b.

[0039] In practical applications, the above-mentioned cutting component 400 can be installed as Figures 2-3On the shown cutting support frame 402. Specifically, the cutting support frame 402 can be installed on the support bottom plate 401. The cutting support frame 402 includes a lower support plate 4021, an upper support plate 4022 located above the lower support plate 4021, and vertical support plates 4024 respectively connecting the lower support plate 4021 and the upper support plate 4022. The first cutter 4001 is installed on the lower support plate 4021. The cylinder body of the second cutter driving cylinder 40040 is installed on the upper support plate 4022, and its movable rod is vertically downward and fixedly connected to the second cutter 4002 to drive the second cutter 4002 to cooperate with the first cutter 4001 to cut the workpiece. Preferably, a waste bin 406 can be arranged on one side of the first cutter 4001 close to its cutting surface 4001b to collect the cut waste materials.

[0040] In the actual processing of the workpiece, the cutting precision of the workpiece often affects the quality of the final product. The inventors of the present application found in long-term production practice that the cutting precision is often affected by the size of the gap between the second cutter 4002 and the first cutter 4001 at the moment of cutting. The smaller the gap, the higher the cutting precision; on the contrary, the lower the cutting precision. To reduce the gap between the second cutter 4002 and the first cutter 4001, it is necessary to ensure that the second cutter 4002 does not have a position deviation during the movement towards the first cutter 4001. To reduce or even eliminate the position deviation of the second cutter 4002 during the movement, Figure 2 The shown second cutter driving structure further includes a movable plate 40042 horizontally arranged and fixed at the front end of the movable rod of the second cutter driving cylinder 40040, a guide post 40044 arranged vertically and passing through the movable plate 40042, a guide post (not shown in the figure) sleeved on the outer peripheral side of the guide post 40044 and capable of sliding up and down along the axial direction of the guide post 40044 relative to the guide post 40044, and a guide sleeve 40048 cooperating with the guide post (not shown in the figure) and capable of sliding up and down along the axial direction of the guide post 40044 relative to the guide post (not shown in the figure). Among them, the axial direction of the guide post 40044 is parallel to the direction in which the second cutter 4002 moves towards the first cutter 4001. The guide sleeve 40048 is fixedly connected to the movable plate 40042. The second cutter 4002 is vertically fixed on the movable plate 40042. The movable rod of the second cutter driving cylinder 40040 is fixedly connected to the movable plate 40042 to drive the movable plate 40042 to move up and down. Through the frictional force and clearance fit between the guide post 40044 and the guide post (not shown in the figure) and the guide sleeve 40048, it is ensured that the second cutter 4002 will not shift during the downward movement. In this way, the gap between the second cutter 4002 and the first cutter 4001 at the moment of cutting can be minimized as much as possible, thereby ensuring the cutting accuracy and being beneficial to improving the quality of the battery product. Preferably, as Figure 2As shown, a guide post limiting spring 40049 is also sleeved on the outer peripheral side of the lower part of the guide post 40044 to limit the downward sliding stroke of the guide post (not shown in the figure) and prevent the guide post (not shown in the figure) from detaching from the guide sleeve 40048 during the downward movement.

[0041] To achieve the sliding of the pressing plate 40060 relative to the second cutting tool 4002, it can be as Figure 3 shown that at both ends of the second cutting tool 4002 along its length direction, limiting plates 40062 with an "L"-shaped cross-section are respectively fixedly connected. Both ends of the second cutting tool 4002 and the pressing plate 40060 are accommodated in the recessed positions of the two "L"-shaped limiting plates 40062. Among them, the second cutting tool 4002 is fixed on the movable plate 40042, and the pressing plate 40060 is located between the second cutting tool 4002 and the limiting plate 40062 and slides up and down in the vertical direction. In this implementation manner, due to the frictional forces between the pressing plate 40060 and the second cutting tool 4002 and the limiting plate 40062 respectively, the pressing plate 40060 will not fall off under its own action. In addition to Figure 3 the way shown, a slide rail extending up and down in the vertical direction can also be provided on the second cutting tool 4002 (or the pressing plate 40060), and a slider adapted to the slide rail can be provided on the pressing plate 40060 (or the second cutting tool 4002). In this way, the up-and-down sliding of the pressing plate 40060 relative to the second cutting tool 4002 can also be achieved, and it is not limited to a single way here.

[0042] To better fix the relative positions of the pressing plate 40060 and the second cutting tool 4002 and to achieve the reset of the pressing plate 40060 after cutting the workpiece. The above-mentioned pressing structure 4006 further includes a pressing plate reset elastic member 40064. As Figure 4As shown, a receiving groove 4002a is provided on the side of the second cutter 4002 close to the pressing plate 40060. A receiving hole 40060a is provided at the position of the pressing plate 40060 opposite to the receiving groove 4002a. The receiving groove 4002a and the receiving hole 40060a form a receiving cavity for receiving the pressing plate return elastic member 40064. The pressing plate return elastic member 40064 in the receiving cavity extends vertically. Its upper end is fixedly connected to the second cutter 4002 and abuts against the pressing plate 40060. Its lower end abuts against the second cutter 4002 and the pressing plate 40060 respectively. In this way, by fixedly connecting the pressing plate return elastic member 40064 to the second cutter 4002 and abutting against the pressing plate 40060, the position of the pressing plate 40060 in the vertical direction can be restricted to prevent the pressing plate 40060 from falling. In addition, by abutting the pressing plate return elastic member 40064 against the second cutter 4002 and the pressing plate 40060, when the pressing plate 40060 presses the airbag 10b placed on the loading surface 4001a of the first cutter 4001, the second cutter 4002 can continue to move downward relative to the pressing plate 40060 to achieve cutting of the workpiece. During this process, the pressing plate return elastic member 40064 is compressed. After the cutting is completed, the second cutter 4002 moves upward in the vertical direction, and the pressing plate 40060 is reset under the elastic action of the pressing plate return elastic member 40064 for the next cutting. Of course, to increase the contact area between the upper and lower ends of the pressing plate return elastic member 40064 and the second cutter 4002 and the pressing plate 40060, elastic member abutting blocks 40066 as shown in Figure 4 can be provided at the upper and lower ends of the pressing plate return elastic member 40064 so that the two ends of the pressing plate return elastic member 40064 can be better stressed / apply force.

[0043] Figures 5-6 Fig. shows the structure of another embodiment of the cutting assembly of the present invention. In this embodiment, the cutting assembly 400 further includes a stage 4000 for carrying the workpiece. The stage 4000 is arranged on the other side of the first cutter 4001 relative to the second cutter 4002 along a direction parallel to its loading surface 4001a. The stage 4000 is integrally rectangular, and a positioning structure is provided on the stage 4000 for positioning the workpiece placed on the stage 4000. The positioning structure includes a first side positioning component and a second side positioning component. Specifically, as shown in Figure 6As described above, the first side positioning component includes two first side positioning blocks 40081, which are respectively arranged on the opposite sides of the stage 4000 along the first direction D1, and the distance between the two first side positioning blocks 40081 is adjustable. To achieve the adjustability of the distance between the two first side positioning blocks 40081, at least one first side positioning block 40081 can move back and forth along the first direction D1. Specifically, the first side positioning component further includes a first side positioning cylinder (not shown in the figure), a first positioning slide rail extending along the first direction D1 and arranged at the lower part of the stage 4000, and a first positioning slider (not shown in the figure) that cooperates with the first positioning slide rail to slide. Among them, the first side positioning block 40081 is fixed on the first positioning slide rail, and the movable rod of the first side positioning cylinder is fixedly connected to the first side positioning block 40081 to drive the first side positioning block 40081 to move back and forth along the first direction D1. In this way, through the cooperation of the two first side positioning blocks 40081, the position of the workpiece placed on the stage 4000 along the first direction D1 can be restricted. Similarly, to achieve the adjustability of the distance between the two second side positioning blocks 40082, at least one second side positioning block 40082 can move back and forth along the second direction D2. The second side positioning component includes two second side positioning blocks 40082, which are respectively arranged on the opposite sides of the stage 4000 along the second direction D2, and at least one second side positioning block 40082 can move back and forth along the second direction D2. Specifically, the second side positioning component further includes a second side positioning cylinder (not shown in the figure), a second positioning slide rail (not shown in the figure) extending along the second direction D2 and arranged at the lower part of the stage 4000, and a positioning slider (not shown in the figure) that cooperates with the second positioning slide rail to slide. The second side positioning block 40082 is fixed on the second positioning slide rail, and the movable rod of the second side positioning cylinder is fixedly connected to the second side positioning block 40082 to drive the second side positioning block 40082 to move back and forth along the second direction D2. In this way, through the cooperation of the two second side positioning blocks 40082, the position of the workpiece placed on the stage 4000 along the second direction D2 can be restricted, and finally the accurate positioning of the workpiece can be achieved to ensure the accuracy of cutting. Among them, the second direction D2 is perpendicular to the first direction D1.

[0044] As an application of the above cutting component 400 including the stage 4000, the present invention provides a pre-cutting mechanism 40 having the above cutting component 400. The pre-cutting mechanism 40 is used to cut off the airbag bag of the soft-pack battery during the processing of the soft-pack battery, so as to further perform fine cutting on the side of the soft-pack battery. As Figure 7As shown, the existing soft-pack battery 10 generally includes two parts: a battery body 10a and an airbag 10b. To remove the airbag 10b of the soft-pack battery 10 after exhaust, it is necessary to precisely cut the airbag of the soft-pack battery 10 and the side of the battery body on the other side relative to the airbag. Since the area of the airbag 10b is relatively large, it is not conducive to immediate precise cutting. Therefore, it is necessary to first pre-cut the soft-pack battery 10 through a pre-cutting mechanism 40 to first remove the airbag 10b and then perform precise cutting.

[0045] Figures 8-9 The specific structure of a pre-cutting mechanism of the present utility model is shown. As Figures 8-9 shown, the pre-cutting mechanism 40 of this embodiment includes a support bottom plate 401, a cutting support frame 402 disposed on the support bottom plate 401, and the above-mentioned cutting assembly 400. Among them, the carrier table 4000 is disposed on the support bottom plate 401 and is located on one side of the cutting support frame 402 along the first direction D1. The first cutter 4001, the second cutter 4002, and the second cutter driving structure are all installed on the cutting support frame 402. The specific installation positions and connection methods have been described above, so they will not be elaborated here.

[0046] During use, first place the battery body 10a of the soft-pack battery 10 on the carrier table 4000, and then place the airbag 10b to be removed between the second cutter 4002 and the first cutter 4001 and abut against the load-bearing surface 4001a of the first cutter 4001. Drive the second cutter 4002 to move downward through the second cutter driving structure and cooperate with the first cutter 4001 to achieve the removal of the airbag 10b. Since there may still be some electrolyte residues in the airbag 10b, to prevent the electrolyte from dripping onto the support bottom plate 401 and flowing everywhere when the airbag 10b is removed, a liquid receiving box 408 can also be provided on the support bottom plate 401 to collect the dripping electrolyte.

[0047] Further, to accommodate soft-pack batteries 10 of different sizes and facilitate the transfer of the soft-pack batteries 10 between the pre-cutting mechanism 40 and the device mechanisms upstream and downstream thereof. The pre-cutting mechanism 40 further includes a stage moving assembly for driving the stage 4000 to move back and forth along the first direction D1. The stage moving assembly specifically includes two mutually parallel stage slide rails 4040 provided on the support base plate 401 and stage sliders 4042 that cooperate with the stage slide rails 4040 to slide, stage driving wheels 4044 respectively provided at both ends of the stage slide rails 4040 along the first direction D1, and a stage transmission belt 4046 sleeved on the outer peripheral sides of the two stage driving wheels 4044 and cooperating with the stage driving wheels 4044 for transmission, a transmission belt clamping block 4049 for clamping the stage transmission belt 4046, and a stage driving motor 4048. The stage driving motor 4048 has an output shaft, and the output shaft is fixedly connected to the axis of one of the stage driving wheels 4044 to drive the stage driving wheel 4044 to rotate. The stage 4000 is fixed on the stage slider 4042 and fixedly connected to the transmission belt clamping block 4049. Preferably, the stage driving wheels 4044 are synchronous wheels, and correspondingly, the stage transmission belt 4046 is a synchronous belt. Through the cooperation and transmission of the synchronous wheels and the synchronous belt, the transmission accuracy can be improved.

[0048] The movement of the stage 4000 along the first direction D1 will pass through three workstations, namely the loading workstation, the cutting workstation, and the unloading workstation. During use, the soft-pack battery 10 to be cut is placed on the stage 4000 at the loading workstation, and then the stage driving motor 4048 is started. The stage driving motor 4048 drives the stage driving wheels 4044 and the stage transmission belt 4046 to rotate, driving the transmission belt clamping block 4049 to move along the first direction D1, and further driving the stage 4000 to move along the first direction D1 towards the positions of the first cutting knife 4001 and the second cutting knife 4002 until the soft-pack battery 10 is transferred to the preset cutting workstation. The stage 4000 stops transmitting, and then the airbag bag 10b is cut by the cutting assembly 400. The cut airbag bag 10b is collected in the waste bin 406. Then, the stage 4000 moves the cut soft-pack battery 10 along the first direction D1 to the unloading workstation, and then transfers the soft-pack battery 10 to the fine-cutting mechanism 41 through the cutting and transfer mechanism 46 (such as a manipulator).

[0049] Furthermore, during the movement of the stage 4000 along the first direction D1, the flexible package battery 10 placed on the stage 4000 is prone to shaking and even displacement. To prevent the flexible package battery 10 placed on the stage 4000 from shifting, the stage 4000 is further provided with an adsorption structure (not shown in the figure). The adsorption structure (not shown in the figure) is specifically a plurality of adsorption through-holes provided on the top surface of the stage 4000 and a vacuum pumping device communicated with the adsorption through-holes. By pumping vacuum through the vacuum pumping device, negative pressure is generated in the adsorption through-holes, and an adsorption force is generated on the flexible package battery 10 to fix the position of the flexible package battery 10 on the stage 4000.

[0050] As another application of the above cutting assembly 400, the present utility model further provides a fine cutting mechanism 41 having the above cutting assembly 400. Figure 10 The specific structure of an embodiment of the fine cutting mechanism 41 of the present utility model is shown. The difference between the fine cutting mechanism 41 and the pre-cutting mechanism 40 in this embodiment is that: the fine cutting mechanism 41 does not have a stage moving assembly, and the stage 4000 of the fine cutting mechanism 41 is not provided with an adsorption structure. Therefore, the stage 4000 of the fine cutting mechanism 41 cannot move along the first direction D1. Since the stage 4000 cannot move and the airbag bag 10b with a larger area has been cut off, there is no need to provide an adsorption structure (not shown in the figure) for fixing the flexible package battery 10 on the stage 4000. Since the working principle of the fine cutting mechanism 41 for cutting the flexible package battery 10 is the same as that of the pre-cutting mechanism 40, it will not be elaborated here.

[0051] In addition, the present application further provides a trimming device for flexible package batteries, which is used to perform pre-cutting and fine cutting on the flexible package batteries in sequence. Figures 12-13 The specific structure of an embodiment of the trimming device for flexible package batteries of the present utility model is shown. As Figure 12 shown, in the trimming device 4 for flexible package batteries of this embodiment, it includes the above-mentioned pre-cutting mechanism 40, the above-mentioned fine cutting mechanism 41 and the above-mentioned fine cutting mechanism 41, as well as a cutting and conveying mechanism 46. The number of the fine cutting mechanisms 41 is two, which are the first fine cutting mechanism 42 and the second fine cutting mechanism 44 respectively. The first fine cutting mechanism 42 and the second fine cutting mechanism 44 are arranged in sequence downstream of the pre-cutting mechanism 40 along the second direction D2. The first fine cutting mechanism 42 and the second fine cutting mechanism 44 are mirror structures with the second direction D2 as the symmetry axis, so as to further perform fine cutting on both sides of the flexible package battery 10 along the first direction D1 after the airbag bag 10b has been cut off. The cutting and conveying mechanism 46 is used to transfer the flexible package battery 10 moved by the pre-cutting mechanism 40 to the loading position to the stage 4000 of the first fine cutting mechanism 42 for the first fine cutting; after completion, the cutting and conveying mechanism 46 transfers the flexible package battery 10 placed on the stage 4000 of the first fine cutting mechanism 42 to the stage 4000 of the second fine cutting mechanism 44 for the second fine cutting; after completion, the cutting and conveying mechanism 46 transfers the flexible package battery 10 to the next processing mechanism.

[0052] Specifically, as Figure 13 shown, the cutting and transferring mechanism 46 specifically includes a cutting and transferring bracket 460 disposed on one side of the pre-cutting mechanism 40, the first fine-cutting mechanism 42, and the second fine-cutting mechanism 44 along the first direction D1, and a cutting and transferring manipulator 462 slidably connected to the cutting and transferring bracket 460. Driven by a linear motor 464, the cutting and transferring manipulator 462 can move back and forth along the second direction D2. The cutting and transferring manipulator 462 has a suction cup assembly 4620 with the suction port facing downward and a vacuum pumping device (not shown in the figure) communicating with the suction cup assembly 4620. By pumping vacuum with the vacuum pumping device (not shown in the figure), the suction cup assembly 4620 generates an adsorption force on the soft-pack battery 10 to realize the picking and placing of the soft-pack battery 10.

[0053] Furthermore, the cutting and transferring manipulator 462 is further provided with a lifting cylinder (not shown in the figure) that can drive the suction cup assembly 4620 to move up and down in the vertical direction, so as to realize the back-and-forth movement of the cutting and transferring manipulator 462 between different functional mechanisms without causing movement interference.

[0054] Compared with the prior art, the cutting component of the present utility model is provided with a pressing structure on the second cutting knife to fix the position of the workpiece before cutting the workpiece, so as to avoid affecting the cutting accuracy due to the shaking and displacement of the workpiece, resulting in an uneven cutting surface and further affecting the quality of the final product. The cutting component of the present utility model has a simple structure, strong practicability, and good economy, and can be applied to the pre-cutting mechanism and the fine-cutting mechanism for soft-pack battery processing.

[0055] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and the present utility model also intends to include these modifications and improvements.

Claims

1. A cutting assembly, comprising a first cutter (4001) and a second cutter (4002) which are oppositely arranged, and a driving structure of the second cutter (4002) which is connected to the second cutter (4002) and is used for driving the second cutter (4002) to move towards the first cutter (4001); the first cutter (4001) has a loading surface (4001a) capable of abutting against a workpiece and a cutting surface (4001b) perpendicular to the loading surface (4001a); during the process that the second cutter (4002) moves towards the first cutter (4001) along an operating surface (A) parallel to the cutting surface (4001b), a part of the workpiece placed on the loading surface (4001a) that protrudes from the cutting surface (4001b) is cut off; characterized in that: It further comprises a pressing structure (4006) arranged on the second cutter (4002), the pressing structure (4006) includes a pressing plate (40060) capable of moving back and forth relative to the second cutter (4002) along a direction parallel to the operating surface (A), the pressing plate (40060) protrudes from the second cutter (4002) along the direction that the second cutter (4002) moves towards the first cutter (4001), the pressing plate (40060) has a pressing surface (40060a) parallel to the loading surface (4001a), and during the process that the second cutter (4002) moves towards the first cutter (4001) along the operating surface (A), the pressing surface (40060a) abuts against the loading surface (4001a) to clamp the workpiece placed on the loading surface (4001a).

2. The cutting assembly according to claim 1, characterized in that: The pressing structure (4006) further includes a pressing plate reset elastic member (40064), a receiving groove (4002a) is provided on a side portion of the second cutter (4002) facing the pressing plate (40060), a receiving hole (40060b) is provided at a position of the pressing plate corresponding to the receiving groove (4002a), the receiving groove (4002a) and the receiving hole (40060b) form a receiving cavity for receiving the pressing plate reset elastic member (40064), one end of the pressing plate reset elastic member (40064) is fixedly connected to the second cutter (4002) and abuts against the pressing plate (40060), and the other end thereof abuts against the second cutter (4002) and the pressing plate (40060) respectively.

3. The cutting assembly according to claim 1, characterized in that: The driving structure of the second cutter includes a second cutter driving cylinder (40040), a movable rod of the second cutter driving cylinder (40040) is parallel to the operating surface (A) and is fixedly connected to the second cutter (4002) to drive the second cutter (4002) to move towards the first cutter (4001) along the operating surface (A).

4. The cutting assembly according to claim 3, characterized in that: The second cutter driving structure further includes a movable plate (40042), a guide post (40044) parallel to the direction in which the second cutter (4002) moves towards the first cutter (4001) and passing through the movable plate, a guide column sleeved on the outer peripheral side of the guide post (40044) and axially slidable along the guide post (40044), and a guide sleeve (40048) used in cooperation with the guide column and axially slidable relative to the guide column along the guide post (40044); The guide sleeve (40048) is fixedly connected to the movable plate (40042); The second cutter (4002) is fixed to the movable plate (40042), and the movable rod of the second cutter driving cylinder is fixedly connected to the movable plate (40042) to drive the movable plate (40042) so that the second cutter (4002) moves towards the first cutter (4001) along the working surface (A).

5. The cutting assembly according to claim 1, wherein: It further includes a stage (4000) for carrying the workpiece, and the stage (4000) is arranged on one side of the first cutter (4001) along the first direction; The stage (4000) is provided with a positioning structure, and the positioning structure includes two first side positioning blocks (40081) respectively arranged on opposite sides of the stage (4000) along the first direction, and two second side positioning blocks (40082) respectively arranged on opposite sides of the stage (4000) along the second direction, wherein at least one of the first side positioning blocks (40081) can move back and forth along the first direction, and at least one of the second side positioning blocks (40082) can move back and forth along the second direction; Wherein, the second direction is perpendicular to the first direction.

6. A pre-cutting mechanism for a soft-pack battery, which is used to cut off the airbag bag (10b) of the soft-pack battery (10), is characterized in that: It includes a support base plate (401), a cutting support frame (402) arranged on the support base plate (401), and a cutting assembly (400) according to claim 5; the stage (4000) is arranged on the support base plate (401) and is located on one side of the cutting support frame (402) along the first direction, and the first cutter (4001), the second cutter (4002) and the second cutter driving structure are all installed on the cutting support frame (402).

7. The pre-cutting mechanism for soft-pack batteries according to claim 6, wherein: It further includes a stage moving assembly for driving the stage (4000) to move along the first direction. The stage moving assembly includes a stage moving guide rail (4040) disposed on the support base plate (401) and extending along the first direction, a stage moving slider (4042) slidably engaged with the stage moving guide rail (4040), stage driving wheels (4044) respectively disposed at two ends of the stage moving guide rail (4040) along the first direction, a stage driving belt (4046) engaged with the two stage driving wheels (4044) for transmission, a stage clamping block (4049) clamped on the stage driving belt (4046), and a stage moving motor (4048). The stage moving motor (4048) has an output shaft which is fixedly connected to the axis of one of the stage driving wheels (4044) to drive the stage driving wheel (4044) to rotate. The stage (4000) is fixed to the stage moving slider and fixedly connected to the clamping block (4049).

8. The pre-cutting mechanism for soft-pack batteries according to claim 7, characterized in that: The stage (4000) is further provided with an adsorption structure to generate an adsorption force on the soft-pack battery (10) placed on the stage (4000).

9. A fine-cutting mechanism for soft-pack batteries, used for cutting the sides of soft-pack batteries, characterized in that: It includes a support base plate (401), a cutting support frame (402) disposed on the support base plate (401), and a cutting assembly (400) as described in claim 5; the stage (4000) is disposed on the support base plate (401) and is located on one side of the cutting support frame (402) along the first direction, and the first cutting knife (4001), the second cutting knife (4002), and the second cutting knife driving structure are all installed on the cutting support frame (402).

10. A side-cutting device for soft-pack batteries, characterized in that: It includes a pre-cutting mechanism (40) as described in any one of claims 6 to 8, two fine-cutting mechanisms (41) as described in claim 9, and a cutting and conveying mechanism (46); The two fine-cutting mechanisms (41) are respectively a first fine-cutting mechanism (42) and a second fine-cutting mechanism (44); The first fine-cutting mechanism (42) and the second fine-cutting mechanism (44) are mirror-symmetrical structures and are sequentially disposed downstream of the pre-cutting mechanism (40) along the second direction to respectively cut the two sides of the soft-pack battery (10) along the first direction; The cutting and conveying mechanism is used to transfer the soft-pack battery (10) from the stage of the pre-cutting mechanism (40) to the stage of the first fine-cutting mechanism (42) in sequence, and then to the stage of the second fine-cutting mechanism (44).

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