Cache storage assembly and die cutting winding equipment

Abstract

The utility model discloses a caching assembly and die cutting winding equipment, the caching assembly comprises a guide sub-assembly, a first sub-assembly and a second sub-assembly, the guide sub-assembly comprises a guide piece or a guide groove, the guide direction of the guide piece or the guide groove is a first direction, the first sub-assembly comprises a plurality of first caching rollers which are rotatably arranged, and the second sub-assembly comprises a plurality of second caching rollers which are rotatably arranged; the first sub-assembly comprises a plurality of first buffer rollers which are rotatably arranged, the first buffer rollers are used for the material belt to bypass, the second sub-assembly and the first sub-assembly are arranged at intervals in the first direction, the second sub-assembly comprises a plurality of second buffer rollers which are rotatably arranged, the second buffer rollers are used for the material belt to bypass, and the first sub-assembly and / or the second sub-assembly are / is movably arranged on the guide piece or the guide groove in the first direction. According to the guide rotor assembly, the structure of the guide sub-assembly can be simplified, so that the machining difficulty and the manufacturing cost of the guide rotor assembly can be reduced, and meanwhile, the movable first sub-assembly and / or the movable second sub-assembly can be assembled and debugged conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery processing equipment, and in particular to a buffering assembly and a die-cutting and winding device. BACKGROUND

[0002] In the battery production process, the pole piece needs to go through multiple different processes to be processed into a battery cell, and the transmission speed of the pole piece is also different in different processes. However, due to the difference in the transmission speed of the pole piece in the front and rear processes, the pole piece may be loose or torn, so a buffering assembly is needed between processes with different transmission speeds to balance the speed difference between the front and rear processes and maintain the tension of the pole piece transmission.

[0003] In related technologies, the buffering assembly usually includes a floating buffering roller and a guide subassembly, wherein the floating buffering roller is movably arranged, and the guide subassembly is used to guide the movement of the floating buffering roller. However, due to the complex structure of the guide subassembly in related technologies, the guide subassembly is difficult to process and has a high manufacturing cost. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems in related technologies, the present application provides a buffering assembly and a die-cutting and winding device to solve the problem of the complex structure of the guide subassembly in related technologies.

[0005] To solve the above technical problems, in a first aspect, the present application provides a buffering assembly, which comprises:

[0006] a guide subassembly, the guide subassembly comprising one guide piece or one guide groove, the guide direction of the guide piece or the guide groove being a first direction;

[0007] a first subassembly, the first subassembly comprising a plurality of first buffering rollers arranged rotatably, the first buffering rollers being arranged for the material belt to pass through;

[0008] a second subassembly, the second subassembly being arranged along the first direction at a distance from the first subassembly, the second subassembly comprising a plurality of second buffering rollers arranged rotatably, the second buffering rollers being arranged for the material belt to pass through; and the first subassembly and / or the second subassembly being movably arranged along the first direction in the guide piece or the guide groove.

[0009] In a possible implementation manner of the first aspect, the buffering assembly further comprises:

[0010] a driving subassembly, the driving subassembly being used to drive the first subassembly and / or the second subassembly to move along the first direction.

[0011] In a possible implementation manner of the first aspect, the driving subassembly comprises:

[0012] a driving wheel;

[0013] a driven wheel, the driven wheel and the driving wheel being arranged in the first direction at intervals;

[0014] a conveying belt, the conveying belt being sleeved on the outer side of the driven wheel and the driving wheel, and being connected with the first subassembly and / or the second subassembly;

[0015] a buffer driving member, the buffer driving member being used for driving the driving wheel to rotate, so that the driving wheel drives the driven wheel to rotate through the conveying belt.

[0016] In a possible implementation manner of the first aspect, the buffer driving member is a servo motor; and / or,

[0017] The conveying belt is a synchronous belt.

[0018] In a possible implementation manner of the first aspect, the guide member is a guide rail;

[0019] The guide subassembly only includes one guide rail; and / or, the guide rail is arranged on the outer side of the conveying belt.

[0020] In a possible implementation manner of the first aspect, the buffer assembly further includes:

[0021] a guide plate, the guide plate including an arc plate segment, the first buffer roller or the second buffer roller being arranged on the inner side of the circle where the arc plate segment is located, and the arc plate segment and the first buffer roller or the second buffer roller having a gap therebetween; the gap being for the tape to pass through, or the gap being for the pole lug on the pole piece of the tape to pass through.

[0022] In a possible implementation manner of the first aspect, the guide plate further includes:

[0023] a guide plate segment, two guide plate segments being arranged, the two guide plate segments being respectively connected to the two ends of the arc extension direction of the arc plate segment; the two guide plate segments each having a connection end connected with the arc plate segment, and a far end arranged away from the arc plate segment, the distance between the two guide plate segments gradually increasing from the connection end to the far end.

[0024] In a second aspect, the present application provides a die cutting and winding device, which includes:

[0025] a first die cutting and buffer module, the first die cutting and buffer module including:

[0026] a first unwinding assembly, the first unwinding assembly being used for unwinding a tape;

[0027] a first die-cutting assembly configured to die-cut the material tape unwound by the first unwinding assembly;

[0028] a winding assembly configured to wind the material tape die-cut by the first die-cutting assembly;

[0029] The first die-cutting assembly and the winding assembly are provided with a buffer assembly of any one of the first aspect, so that the buffer assembly buffers the material tape between the first die-cutting assembly and the winding assembly.

[0030] In a possible implementation of the second aspect, the die-cutting and winding device further comprises:

[0031] a rack;

[0032] a base provided on the rack, and the buffer assembly is provided on the base.

[0033] In a possible implementation of the second aspect, the material tape comprises a first material tape and a second material tape;

[0034] The first die-cutting buffer module is provided with two first unwinding assemblies, one of which is configured to unwind the first material tape, and the other of which is configured to unwind the second material tape;

[0035] The winding assembly is configured to wind the first material tape and the second material tape in the two first die-cutting buffer modules.

[0036] In a possible implementation of the second aspect, the material tape comprises a first material tape and a second material tape, and the first unwinding assembly in the first die-cutting buffer module is configured to unwind the first material tape;

[0037] The die-cutting and winding device further comprises:

[0038] a second die-cutting buffer module comprising:

[0039] a second unwinding assembly configured to unwind the second material tape;

[0040] a second die-cutting assembly configured to die-cut the second material tape unwound by the second unwinding assembly;

[0041] a gluing assembly configured to glue the second material tape die-cut by the second die-cutting assembly;

[0042] The winding assembly is configured to wind the second material tape glued by the gluing assembly and the first material tape die-cut by the first die-cutting assembly;

[0043] The second cutting assembly and the gluing assembly are provided with the buffer assembly, so that the buffer assembly buffers the second material belt between the second cutting assembly and the gluing assembly; and / or the gluing assembly and the winding module are provided with the buffer assembly, so that the buffer assembly buffers the second material belt between the gluing assembly and the winding module.

[0044] In a possible implementation of the second aspect, the second cutting buffer module further comprises a gluing photographing assembly, which is arranged between the gluing assembly and the winding module and is configured to photograph the second material belt after the gluing of the gluing assembly.

[0045] In a possible implementation of the second aspect, the first cutting buffer module further comprises a first deviation rectifying assembly, which is arranged between the buffer assembly and the winding module and is configured to rectify the deviation of the material belt.

[0046] In a possible implementation of the second aspect, the first cutting buffer module further comprises a first photographing assembly, which is arranged between the first cutting assembly and the winding module and is configured to photograph the material belt after the cutting of the first cutting assembly.

[0047] In a possible implementation of the second aspect, the first cutting buffer module further comprises a first thickness measuring assembly, which is arranged between the first unwinding assembly and the first cutting assembly and is configured to measure the thickness of the material belt.

[0048] Compared with the related art, the present application has at least the following beneficial effects:

[0049] In the present application, the guide subassembly comprises a guide piece or a guide groove, and the first subassembly and / or the second subassembly are movably arranged in the guide piece or the guide groove in the first direction. Therefore, the guide subassembly can guide the movement of the first subassembly and / or the second subassembly in the first direction through the guide piece or the guide groove, and further guide the movement of the plurality of first buffer rollers and / or the plurality of second buffer rollers in the first direction. The guide piece or the guide groove can simplify the structure of the guide subassembly, thereby facilitating the reduction of the processing difficulty and manufacturing cost of the guide rotor assembly, and facilitating the assembly and debugging of the movable first subassembly and / or the second subassembly. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0051] Figure 1 A schematic diagram of a buffer assembly provided by the embodiments of the present application;

[0052] Figure 2 A schematic diagram of a partial structure of a buffer assembly provided by the embodiments of the present application;

[0053] Figure 3 A schematic diagram of a partial structure of a buffer assembly provided by the embodiments of the present application;

[0054] Figure 4 A schematic diagram of a partial structure of a buffer assembly provided by the embodiments of the present application; Figure 3 An enlarged view of part A in FIG. 6.

[0055] Figure 5 A schematic diagram of a die-cutting and winding device provided by the embodiments of the present application;

[0056] Figure 6 A schematic diagram of a die-cutting and winding device provided by the embodiments of the present application.

[0057] Explanation of reference signs:

[0058] 1-first die-cutting buffer module; 11-first unwinding assembly; 12-first die-cutting assembly; 13-first deviation rectifying assembly; 14-first photographing assembly; 15-first thickness measuring assembly;

[0059] 2-winding module;

[0060] 3-material belt; 31-first material belt; 32-second material belt;

[0061] 4-second die-cutting buffer module; 41-second unwinding assembly; 42-second die-cutting assembly; 43-gluing assembly; 44-second deviation rectifying assembly; 45-second photographing assembly; 46-gluing and photographing assembly; 47-second thickness measuring assembly;

[0062] 5-buffer assembly; 51-first sub-assembly; 511-first buffer roller; 52-second sub-assembly; 521-second buffer roller; 53-driving sub-assembly; 531-driving wheel; 532-following wheel; 533-conveying belt; 534-buffer driving member; 54-guiding sub-assembly; 541-guiding member; 55-mounting member; 56-guiding plate; 561-circular-arc plate segment; 562-guiding plate segment; 5621-distal end;

[0063] 6-rack;

[0064] 7-base. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0066] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0067] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0068] In addition, the terms "mount", "set", "provided with", "connect", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above terms in the present application according to the specific situation.

[0069] In addition, the terms "first", "second", and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "multiple" is two or more.

[0070] As described in the background of the present application, during the production of a battery, the pole piece needs to go through a plurality of different processes to be processed into a battery cell, and the transmission speed of the pole piece is different in different processes. Because the difference in transmission speed of the pole piece in the front and rear processes will cause the pole piece to be loose or torn, it is necessary to set a buffer assembly between processes with different transmission speeds to balance the speed difference between the front and rear processes and maintain the tension of the pole piece transmission.

[0071] In the related art, the buffer assembly generally includes a floating buffer roller and a guide subassembly, wherein the floating buffer roller is movably arranged, and the guide subassembly is used to guide the movement of the floating buffer roller. However, because the structure of the guide subassembly in the related art is relatively complex, it leads to a relatively large difficulty in processing the guide subassembly and a relatively high manufacturing cost.

[0072] In view of the above problems, the present application provides a buffer assembly to solve the problem of the complex structure of the guide subassembly in the related art.

[0073] The technical solutions of the present application will be further described below in combination with specific embodiments and drawings:

[0074] As shown in Figure 1 , Figure 2 and Figure 3 , the buffer assembly 5 includes a first subassembly 51, a second subassembly 52, and a guide subassembly 54, wherein the guide subassembly 54 includes a guide piece 541 or a guide groove, and the guide direction of the guide piece 541 or the guide groove is the first direction (such as the Y direction in Figure 1 and Figure 2 ).

[0075] The first subassembly 51 includes a plurality of first buffer rollers 511 arranged rotatably, and the first buffer rollers 511 are bypassed by the supply belt 3. The second subassembly 52 is arranged along the first direction and is spaced apart from the first subassembly 51, and the second subassembly 52 includes a plurality of second buffer rollers 521 arranged rotatably, and the second buffer rollers 521 are bypassed by the supply belt 3; the first subassembly 51 and / or the second subassembly 52 is movably arranged along the first direction in the guide piece 541 or the guide groove.

[0076] In the present application, when the supply belt 3 is buffered using the buffer assembly 5, the supply belt 3 can be alternately bypassed in an S shape through a plurality of first buffer rollers 511 and a plurality of second buffer rollers 521, and the movement of the first subassembly 51 and / or the second subassembly 52 along the first direction can change the distance between the first subassembly 51 and the second subassembly 52, thereby adjusting the buffering amount of the supply belt 3 by the buffer assembly 5. Specifically, when the distance between the first subassembly 51 and the second subassembly 52 increases, the buffering amount of the supply belt 3 can be increased, and when the distance between the first subassembly 51 and the second subassembly 52 decreases, the buffering amount of the supply belt 3 can be reduced.

[0077] Since the guide subassembly 54 comprises a guide 541 or a guide groove, and since the first subassembly 51 and / or the second subassembly 52 is movably arranged in the guide 541 or the guide groove along the first direction, in the present application, the guide subassembly 54 can realize the guidance of the movement of the first subassembly 51 and / or the second subassembly 52 along the first direction through the guide 541 or the guide groove, and further realize the guidance of the movement of the plurality of first buffer rollers 511 and / or the plurality of second buffer rollers 521 along the first direction. The guide 541 or the guide groove can simplify the structure of the guide subassembly 54, and further facilitate to reduce the processing difficulty and manufacturing cost of the guide subassembly 54, and also facilitate to assemble and debug the movable first subassembly 51 and / or the second subassembly 52.

[0078] In the embodiments of the present application, the first buffer rollers 511 and the second buffer rollers 521 can be provided with 3, 4, 5 or 6, and the number of the first buffer rollers 511 and the second buffer rollers 521 is flexible, and specifically, can be set according to actual needs, which is not limited in the embodiments of the present application.

[0079] For the material belt 3, in the embodiments of the present application, according to the different application scenarios of the buffer assembly 5, the material belt 3 can be a pole piece, an insulating belt or a heat dissipation belt, etc. The type of the material belt 3 is flexible, and specifically, can be determined according to the different application scenarios of the buffer assembly 5.

[0080] Further, as shown in Figure 1 , in the direction perpendicular to the first direction (such as the X direction in Figure 1 , the first subassembly 51 and the second subassembly 52 are arranged staggered. In this way, in the direction perpendicular to the first direction, more independent space is provided for the first subassembly 51 and the second subassembly 52 to adjust the position and number of the buffer rollers, and further, the buffer amount of the material belt 3 can be more flexibly adjusted, which is beneficial to better match the overall production rhythm.

[0081] Further, as shown in Figure 2 and Figure 3 , the buffer assembly 5 further comprises a driving subassembly 53, and the driving subassembly 53 is used to drive the first subassembly 51 and / or the second subassembly 52 to move along the first direction.

[0082] In this way, through the driving subassembly 53, not only the first subassembly 51 and / or the second subassembly 52 can be conveniently driven to move along the first direction, but also the position adjustment of the first subassembly 51 and / or the second subassembly 52 in the first direction can be realized according to the actual needs in the production process.

[0083] Further, as shown in Figure 2 andFigure 3 As shown, the driving subassembly 53 comprises a driving wheel 531, a driven wheel 532, a conveyor belt 533, and a buffer driving member 534. The driven wheel 532 and the driving wheel 531 are arranged in the first direction with a spacing, the conveyor belt 533 is sleeved on the outer side of both the driven wheel 532 and the driving wheel 531, and is connected with the first subassembly 51 and / or the second subassembly 52. The buffer driving member 534 is used to drive the driving wheel 531 to rotate, so that the driving wheel 531 drives the driven wheel 532 to rotate through the conveyor belt 533.

[0084] In this way, when the buffer driving member 534 drives the driving wheel 531 to rotate, the conveyor belt 533 can be driven to move around the driving wheel 531 and the driven wheel 532, and in turn the conveyor belt 533 can drive the driven wheel 532 to rotate. At the same time, since the conveyor belt 533 is connected with the first subassembly 51 and / or the second subassembly 52, it can also drive the first subassembly 51 and / or the second subassembly 52 to move in the first direction.

[0085] Since the conveyor belt transmission mechanism has high stability, the conveyor belt 533 can accurately transmit power, ensuring the synchronization between the driving wheel 531 and the driven wheel 532. In this way, during the driving of the first subassembly 51 and / or the second subassembly 52 to move, this synchronization ensures that the first subassembly 51 and / or the second subassembly 52 can move smoothly in the first direction, and cannot shake or deviate in position due to unstable transmission.

[0086] In other embodiments, the driving subassembly 53 can also comprise a lead screw nut mechanism or a gear rack mechanism, and the structure of the driving subassembly 53 is flexible, and can be set according to actual needs.

[0087] Further, the buffer driving member 534 is a servo motor; and / or, the conveyor belt 533 is a synchronous belt.

[0088] In this way, first, through the servo motor, it is beneficial to make the driving subassembly 53 more stably drive the first subassembly 51 and / or the second subassembly 52 to move in the first direction.

[0089] Secondly, since the servo motor has high control accuracy, the servo motor can accurately drive the first subassembly 51 and / or the second subassembly 52 to move to a specified position, and in turn can accurately control the distance between the first subassembly 51 and the second subassembly 52. This is not only beneficial to accurately control the buffer amount of the buffer assembly 5, but also beneficial to accurately control the tension of the first subassembly 51 and / or the second subassembly 52 on the material belt 3.

[0090] Finally, since the power is transmitted between the driving wheel 531 and the driven wheel 532 through the meshing of the teeth, the precise transmission ratio can be ensured through the synchronous belt, which is conducive to precisely controlling the positions of the movable first subassembly 51 and / or the second subassembly 52, and in turn, the buffer amount of the material belt 3.

[0091] For the guide 541, further, the guide 541 is a guide rail. The guide subassembly 54 only includes one guide rail; and / or, the guide rail is arranged on the outer side of the conveying belt 533 (as shown). Figure 2 and Figure 3 As shown.

[0092] In this way, on the one hand, the guide subassembly 54 is arranged to only include one guide rail, which not only can further simplify the structure of the guide subassembly 54, but also can avoid the problem that the movable first subassembly 51 and / or the second subassembly 52 are prone to be stuck due to the arrangement of two guide rails.

[0093] On the other hand, the guide rail is arranged on the outer side of the conveying belt 533, which not only can avoid the interference between the guide rail and the conveying belt 533 to a certain extent, but also is conducive to facilitating the installation and debugging of the movable first subassembly 51 and / or the second subassembly 52 on the guide rail.

[0094] In other embodiments, the guide 541 can also be a guide rod. In this way, it is conducive to enhancing the guiding effect of the guide 541 on the movable first subassembly 51 and / or the second subassembly 52, and in turn, making the first subassembly 51 and / or the second subassembly 52 more stably move in the first direction.

[0095] In other embodiments, the guide rail can also be arranged on the inner side of the conveying belt 533. In this way, the occupied space of both the guide rail and the conveying belt 533 can be reduced, which is conducive to facilitating the arrangement of the guide rail and the conveying belt 533.

[0096] In the preferred embodiments, the second subassembly 52 is fixedly arranged in the first direction, the first subassembly 51 is movably arranged along the first direction, and as shown in Figure 2 and Figure 3 As shown, the first subassembly 51 includes a mounting member 55, and the plurality of first buffer rollers 511 are rotatably arranged on the mounting member 55. Figure 2 and Figure 3 As shown, the conveying belt 533 is connected with the mounting member 55, that is, the conveying belt 533 is connected with the first subassembly 51, and in turn, the driving subassembly 53 is used to drive the first subassembly 51 to move along the first direction.

[0097] As shown in Figure 2 and Figure 3As shown, the guiding subassembly 54 comprises a guiding piece 541, and the mounting piece 55 is guidedly arranged on the guiding piece 541 along the first direction.

[0098] In this way, on the one hand, the adjustment of the storage amount of the storage assembly 5 can be realized by the movement of the first subassembly 51 along the first direction, and on the other hand, the second subassembly 52 is fixedly arranged along the first direction, so that the structure for enabling the movement of the second subassembly 52 is not required, which is conducive to simplifying the structure of the storage assembly 5 and facilitating the processing of the storage assembly 5.

[0099] On the other hand, through the guiding cooperation between the mounting piece 55 and the guiding piece 541, the movement of the plurality of first storage rollers 511 along the predetermined direction can be ensured, and at the same time, through the guiding piece 541, the structure of the guiding subassembly 54 can be simplified to some extent, which is conducive to facilitating the processing and manufacturing of the guiding subassembly 54.

[0100] Further, as shown in Figure 2 , Figure 3 and Figure 4 , the storage assembly 5 further comprises a guiding plate 56, the guiding plate 56 comprises a circular-arc plate segment 561, the first storage roller 511 or the second storage roller 521 is arranged on the radial inner side of the circle where the circular-arc plate segment 561 is located, and there is a gap between the circular-arc plate segment 561 and the first storage roller 511 or the second storage roller 521; the gap is for the passage of the material belt 3, or the gap is for the passage of the pole lug on the pole piece as the material belt 3.

[0101] In this way, on the one hand, when the material belt 3 passes through the gap between the circular-arc plate segment 561 and the storage roller, through the limitation of the circular-arc plate segment 561 and the storage roller, the irregular winding conditions such as the deviation and the distortion of the material belt 3 can be avoided, and the stability of the storage and release of the material belt 3 can be ensured.

[0102] On the other hand, when the material belt 3 is the pole piece, since the pole lug can be formed through die cutting, when the material belt 3 passes through the gap between the circular-arc plate segment 561 and the storage roller, through the limitation of the circular-arc plate segment 561 and the storage roller, the folding of the pole lug can be prevented.

[0103] Further, as shown in Figure 4 , the guiding plate 56 further comprises two guide plate segments 562, the two guide plate segments 562 are respectively connected to the two ends of the circular-arc extension direction (such as the B direction in Figure 4 ) of the circular-arc plate segment 561.

[0104] The two guide plate segments 562 each have a connecting end connected to the circular-arc plate segment 561 and a distal end 5621 arranged away from the circular-arc plate segment 561, and the distance between the two guide plate segments 562 gradually increases from the connecting end to the distal end 5621.

[0105] In this way, the two guide plate segments 562 can form a horn on the guide plate 56, so as to reduce the problems such as folding and jamming of the material belt 3 when entering or leaving the gap between the circular-arc plate segment 561 and the buffer roller, and ensure that the material belt 3 can smoothly enter or leave the gap.

[0106] In addition, it needs to be explained that the positional relationship between the guide plate 56 and the first buffer roller 511 is the same as the positional relationship between the guide plate 56 and the second buffer roller 521. In the embodiment of the present application, only the positional relationship between the guide plate 56 and the first buffer roller 511 is illustrated.

[0107] The present application provides a die-cutting winding device, as shown in Figure 5 and Figure 6 The die-cutting winding device includes a first die-cutting buffer module 1 and a winding module 2. The first die-cutting buffer module 1 includes a first unwinding assembly 11 and a first die-cutting assembly 12. The first unwinding assembly 11 is used to unwind the material belt 3, and the first die-cutting assembly 12 is used to die-cut the material belt 3 unwound by the first unwinding assembly 11. The winding module 2 is used to wind the material belt 3 after die-cutting by the first die-cutting assembly 12.

[0108] A buffer assembly 5 is arranged between the first die-cutting assembly 12 and the winding module 2, so that the buffer assembly 5 buffers the material belt 3 between the first die-cutting assembly 12 and the winding module 2. The buffer assembly 5 has the same structure as the buffer assembly 5 in any of the above embodiments and can bring the same or similar beneficial effects. For details, refer to the description in the above embodiments, which will not be repeated here.

[0109] In this way, the present application can compensate for the speed difference between winding and die-cutting through one buffer assembly 5, so as to ensure that the winding module 2 will not be interrupted due to insufficient supply of the material belt 3. Compared with the related art, the present application can reduce the number of buffer assemblies 5, thereby reducing the overall occupied space of the device to a certain extent, reducing the manufacturing cost, and also being conducive to reducing the complexity caused by the cooperative control of multiple buffer assemblies 5 and facilitating control.

[0110] Further, the die-cutting speed of the first die-cutting assembly 12 ranges from 90 m / min to 120 m / min, or the winding speed of the winding module 2 ranges from 114 m / min to 126 m / min.

[0111] In the related art, since the die cutting speed is usually 70 m / min and the winding speed is usually 150 m / min, the winding speed is much faster than the die cutting speed, so in unit time, the winding module consumes the tape much faster than the die cutting assembly provides the tape, so in the related art, multiple buffer assemblies are needed to buffer more tape to make up for the speed difference between winding and die cutting, so as to ensure that the winding module does not stop working due to insufficient supply of the tape.

[0112] In the present application, on the one hand, when the die cutting speed of the first die cutting assembly 12 is in the range of 90 m / min-120 m / min, compared with the related art, the die cutting speed is improved, so that in the case that the winding speed remains unchanged compared with the related art, the difference between the winding speed and the die cutting speed can be reduced, and thus in unit time, the amount of tape provided by the first die cutting assembly 12 can be closer to the amount of tape consumed by the winding module 2, so that there is no need to buffer more tape 3, and thus one buffer assembly 5 can make up for the speed difference between winding and die cutting under the design of reasonable buffer capacity, so as to ensure that the winding module 2 does not stop working due to insufficient supply of the tape 3.

[0113] On the other hand, when the winding speed of the winding module 2 is in the range of 114 m / min-126 m / min, compared with the related art, the winding speed is reduced, so that in the case that the die cutting speed remains unchanged compared with the related art, the difference between the winding speed and the die cutting speed can also be reduced, and thus in unit time, the amount of tape provided by the first die cutting assembly 12 can be closer to the amount of tape consumed by the winding module 2, so that there is no need to buffer more tape 3, and thus one buffer assembly 5 can make up for the speed difference between winding and die cutting under the design of reasonable buffer capacity, so as to ensure that the winding module 2 does not stop working due to insufficient supply of the tape 3.

[0114] For the die cutting speed of the first die cutting assembly 12, in the present application embodiment, when the winding speed of the winding module 2 is 150 m / min, the die cutting speed of the first die cutting assembly 12 can be 90 m / min, 120 m / min, or any value in the range of 90 m / min-120 m / min. The die cutting speed of the first die cutting assembly 12 is set flexibly, and specifically, it can be set according to actual needs, which is not limited in the present application embodiment.

[0115] For the winding speed of the winding module 2, in the present application embodiment, when the die cutting speed of the first die cutting assembly 12 is 70 m / min, the winding speed of the winding module 2 can be 114 m / min, 126 m / min, or any value in the range of 114 m / min-126 m / min. The winding speed of the winding module 2 is set flexibly, and specifically, it can be set according to actual needs, which is not limited in the present application embodiment.

[0116] Further, as shown in Figure 2 , Figure 3 , Figure 5 and Figure 6 , the die-cutting and winding device further comprises a rack 6 and a base 7, the base 7 is arranged on the rack 6, and the buffer assembly 5 is arranged on the base 7.

[0117] In this way, the buffer assembly 5 can be arranged on the rack 6 through the base 7, so that the buffer assembly 5 is arranged independently of the rack 6, thereby facilitating the installation of the buffer assembly 5 on the rack 6, and the buffer assembly 5 can also be detached from the rack 6, facilitating the maintenance and repair of the buffer assembly 5.

[0118] For the die-cutting and winding device, in a first embodiment, the die-cutting and winding device only comprises one first die-cutting and buffer module 1. In this case, the first unwinding assembly 11 can comprise two unwinding rollers, one of which is used to unwind the positive electrode sheet as the material belt 3, and the other of which is used to unwind the negative electrode sheet as the material belt 3.

[0119] In this way, not only can the overall occupied space of the device be further reduced, the manufacturing cost can be further reduced, but also the control complexity can be further reduced, thereby facilitating further convenient control.

[0120] In a second embodiment, as shown in Figure 5 , the material belt 3 comprises a first material belt 31 and a second material belt 32, and two first die-cutting and buffer modules 1 are arranged, the first unwinding assembly 11 in one of the first die-cutting and buffer modules 1 is used to unwind the first material belt 31, the first unwinding assembly 11 in the other of the first die-cutting and buffer modules 1 is used to unwind the second material belt 32, and the winding module 2 is used to wind the first material belt 31 and the second material belt 32 in the two first die-cutting and buffer modules 1. In this case, the first material belt 31 can be a positive electrode sheet, and the second material belt 32 can be a negative electrode sheet.

[0121] In this way, not only can the overall occupied space of the device be reduced, the manufacturing cost be reduced, and the control be facilitated, but also the two identical first die-cutting and buffer modules 1 can to some extent simplify the composition of the device, thereby facilitating the manufacture of the device.

[0122] In a third embodiment, as shown in Figure 6 , the material belt 3 comprises a first material belt 31 and a second material belt 32, and the first unwinding assembly 11 in the first die-cutting and buffer module 1 is used to unwind the first material belt 31.

[0123] As shown in Figure 6As shown, the die-cut winding device further comprises a second die-cut buffer module 4, the second die-cut buffer module 4 comprising a second unwinding assembly 41, a second die-cut assembly 42, and a rubberizing assembly 43. The second unwinding assembly 41 is configured to unwind the second material tape 32, the second die-cut assembly 42 is configured to die-cut the second material tape 32 unwound by the second unwinding assembly 41, and the rubberizing assembly 43 is configured to rubberize the second material tape 32 die-cut by the second die-cut assembly 42. The winding module 2 is configured to wind the second material tape 32 rubberized by the rubberizing assembly 43 and the first material tape 31 die-cut by the first die-cut assembly 12.

[0124] A buffer assembly 5 is arranged between the second die-cut assembly 42 and the rubberizing assembly 43, so that the buffer assembly 5 buffers the second material tape 32 between the second die-cut assembly 42 and the rubberizing assembly 43; and / or, a buffer assembly 5 is arranged between the rubberizing assembly 43 and the winding module 2, so that the buffer assembly 5 buffers the second material tape 32 between the rubberizing assembly 43 and the winding module 2.

[0125] The buffer assembly 5 has the same structure as the buffer assembly 5 in any of the above embodiments and can bring the same or similar beneficial effects. For details, refer to the description in the above embodiments, which will not be repeated here.

[0126] In this case, the first material tape 31 can be a positive electrode tab, and the second material tape 32 can be a negative electrode tab.

[0127] In this way, on the one hand, the first die-cut buffer module 1 helps to reduce the overall space occupied by the device, reduce manufacturing costs, and facilitate control.

[0128] On the other hand, the buffer assembly 5 buffers the second material tape 32, which can make up for the speed difference between the rubberizing assembly 43 and the second die-cut assembly 42 and / or between the rubberizing assembly 43 and the winding module 2, preventing the second material tape 32 from being interrupted or accumulated.

[0129] In a preferred embodiment of the third embodiment, as shown in Figure 6 The buffer assembly 5 is provided with two buffer assemblies 5, and the rubberizing assembly 43 is arranged between the two buffer assemblies 5. That is, one buffer assembly 5 is arranged between the second die-cut assembly 42 and the rubberizing assembly 43, and is configured to buffer the second material tape 32 die-cut by the second die-cut assembly 42. The other buffer assembly 5 is arranged between the rubberizing assembly 43 and the winding module 2, and is configured to buffer the second material tape 32 after rubberizing. In addition, the die-cut speed of the second die-cut assembly 42 is the same as the die-cut speed of the first die-cut assembly 12.

[0130] In this way, on the one hand, since there is a speed difference between the second die-cutting assembly 42 and the adhesive application assembly 43, the second material strip 32 is buffered by the buffer assembly 5 between the two, so as to compensate for the speed difference between the second die-cuting assembly 42 and the adhesive application assembly 43, and prevent the second material strip 32 from being interrupted or accumulated in supply.

[0131] On the other hand, since there is also a speed difference between the adhesive application assembly 43 and the winding module 2, the second material strip 32 is buffered by the buffer assembly 5 between the two, so as to compensate for the speed difference between the winding module 2 and the adhesive application assembly 43, and prevent the second material strip 32 from being interrupted or accumulated in supply.

[0132] In addition, the die-cutting speed of the second die-cutting assembly 42 is set to be the same as the die-cutting speed of the first die-cuting assembly 12, which facilitates the control of the second die-cutting assembly 42 and the first die-cuting assembly 12.

[0133] For the first material strip 31 and the second material strip 32, in the embodiment of the present application, the first material strip 31 and the second material strip 32 can be pole pieces, insulation strips or heat dissipation strips, etc. according to different application scenarios of the die-cutting and winding equipment. The types of the first material strip 31 and the second material strip 32 are flexible, and specifically, can be determined according to different application scenarios of the die-cutting and winding equipment.

[0134] For the first unwinding assembly 11 and the second unwinding assembly 41, in the embodiment of the present application, the first unwinding assembly 11 and the second unwinding assembly 41 include a rotatable unwinding roller, the unwinding roller is used to install a material roll, and when the unwinding roller rotates, the material roll thereon can unwind the material strip 3. In this way, the unwinding assembly can conveniently unwind the material strip 3, and at the same time, the structure of the unwinding assembly can be simplified to a certain extent, which facilitates the processing and manufacturing of the unwinding assembly.

[0135] For the first die-cutting assembly 12 and the second die-cutting assembly 42, in the embodiment of the present application, the first die-cutting assembly 12 and the second die-cutting assembly 42 include a laser die-cutting machine, which is used to perform laser die-cutting on the material strip 3.

[0136] The laser die-cutting machine can accurately control the path of the laser beam according to a pre-programmed pattern, and cut a shape with extremely high precision, so as to ensure the high quality and consistency of the product.

[0137] For the winding module 2, in the embodiment of the present application, the winding module 2 includes a turntable and a winding needle, wherein the turntable is rotatably arranged, the winding needle is rotatably arranged on the turntable, and the winding needle is used to wind the material strip 3.

[0138] In this way, when the turntable rotates, the winding needle can pass through different stations, and when the winding needle is located at a winding station, the rotating winding needle can wind the material strip 3. In this way, the winding of the material strip 3 by the winding module 2 is facilitated.

[0139] Further, as shown in Figure 5 and Figure 6 , the first die cutting and buffering module 1 further comprises a first deviation correction assembly 13, which is arranged between the buffering assembly 5 and the winding module 2 and is used for correcting the deviation of the material belt 3.

[0140] In this way, by correcting the deviation of the material belt 3 through the first deviation correction assembly 13, the positional deviation of the material belt 3 during transmission can be prevented, and the accuracy of the position of the material belt 3 can be ensured. In this way, not only can the accuracy of the processing and winding of the material belt 3 be ensured, thereby improving the quality and consistency of the product, but also the breakage of the material belt 3 caused by positional deviation can be prevented.

[0141] In the above third embodiment of the die cutting and winding equipment, as shown in Figure 6 , the second die cutting and buffering module 4 further comprises a second deviation correction assembly 44, which is used for correcting the deviation of the second material belt 32. Two second deviation correction assemblies 44 are arranged, one of which is arranged upstream of the gluing assembly 43 and between the buffering assembly 5 and the gluing assembly 43, and the other of which is arranged downstream of the gluing assembly 43 and between the other buffering assembly 5 and the winding module 2. The effect of the second deviation correction assembly 44 is the same as that of the first deviation correction assembly 13, which will not be described here.

[0142] In some embodiments, the first deviation correction assembly 13 and the second deviation correction assembly 44 can comprise guide blocks, which can correct the deviation by changing the transmission path of the material belt 3. For example, when the material belt 3 deviates slightly, the guide blocks can gradually guide the material belt 3 back to the correct direction. The shape and position of the guide blocks can be designed according to the transmission path of the material belt 3 and the deviation correction requirements, which are not limited in the embodiments of the present application.

[0143] Further, as shown in Figure 5 and Figure 6 , the first die cutting and buffering module 1 further comprises a first photographing assembly 14, which is arranged between the first die cutting assembly 12 and the winding module 2 and is used for photographing the material belt 3 after being die cut by the first die cutting assembly 12.

[0144] In this way, on the one hand, the photographing assembly can timely discover quality problems of the material belt 3 after die cutting. For example, during the processing of the material belt 3, whether the material belt 3 has defects such as cutting burrs, edge damage, size deviation, etc. can be checked through photographing. If these problems are found, the parameters of the die cutting assembly, such as the pressure of the die cutting knife and the cutting speed, can be adjusted in time to reduce the generation of defective products and ensure the stability of product quality.

[0145] On the other hand, the photographing assembly can be used to verify the accuracy of the die cutting. By comparing the photographed image with the preset standard die cutting pattern, it can accurately measure whether the actual size of the material belt 3 meets the requirements. This is very important for producing high-precision products. In this way, the die cutting accuracy can be controlled within a very small error range, improving the consistency of the products.

[0146] In the above third embodiment of the die cutting winding device, as shown in Figure 6 the second die cutting buffer module 4 further comprises a second photographing assembly 45, which is arranged between the second die cutting assembly 42 and the adhesive applying assembly 43 and is used to photograph the second material belt 32 after being die cut by the second die cutting assembly 42. The effect of the second photographing assembly 45 is the same as that of the first photographing assembly 14, which will not be described here.

[0147] Further, as shown in Figure 6 the second die cutting buffer module 4 further comprises an adhesive applying photographing assembly 46, which is arranged between the adhesive applying assembly 43 and the winding module 2 and is used to photograph the second material belt 32 after being applied with adhesive by the adhesive applying assembly 43.

[0148] In this way, on the one hand, through the photographing of the adhesive applying photographing assembly 46, the image of the second material belt 32 after being applied with adhesive can be clearly captured, and through image analysis, it can be accurately judged whether the adhesive application position of the adhesive on the second material belt 32 is accurate. In this way, it is convenient to timely adjust the related parameters of the adhesive applying assembly to ensure that the adhesive application position meets the standard requirements.

[0149] On the other hand, through the photographing of the adhesive applying photographing assembly 46, it can be directly observed whether the adhesive application is complete, whether there is a situation of broken adhesive, missing adhesive or adhesive wrinkling, etc. In this way, it is convenient to timely troubleshoot whether the adhesive applying assembly has a fault in the adhesive paper supply link, the adhesive application link or the cutting link, so as to carry out targeted repair and improvement, and ensure the adhesive application quality.

[0150] In some embodiments, the first photographing assembly 14, the second photographing assembly 45 and the adhesive applying photographing assembly 46 can include a light source and a camera.

[0151] In this way, on the one hand, the camera has a high resolution, which is convenient for clearly photographing the detailed information of the material belt 3, which is crucial for accurately judging the quality of the material belt 3 and discovering potential defects, and helps to strictly control the production quality.

[0152] On the other hand, the light source can provide uniform and suitable light conditions for the camera shooting, so as to ensure that the entire material belt 3 can be clearly presented in the image, which is convenient for accurately detecting quality problems.

[0153] Further, as shown in Figure 5 and Figure 6As shown, the first die-cutting buffer module 1 further comprises a first thickness measuring assembly 15, which is arranged between the first unwinding assembly 11 and the first die-cutting assembly 12, and is configured to measure the thickness of the material tape 3.

[0154] In this way, in the case that the material tape 3 is a pole piece, the thickness of the pole piece is detected by the thickness measuring assembly, so that the cutting parameters of the die-cutting assembly can be adjusted according to the detected thickness of the pole piece, thereby ensuring the alignment of the tabs on the wound battery cell.

[0155] In the third embodiment of the die-cutting winding device, as shown in Figure 6 The second die-cutting buffer module 4 further comprises a second thickness measuring assembly 47, which is arranged between the second unwinding assembly 41 and the second die-cutting assembly 42, and is configured to measure the thickness of the second material tape 32. The second thickness measuring assembly 47 has the same effect as the first thickness measuring assembly 15, and will not be described here.

[0156] In some embodiments, the first thickness measuring assembly 15 and the second thickness measuring assembly 47 can comprise an optical sensor or an ultrasonic sensor, etc. The first thickness measuring assembly 15 and the second thickness measuring assembly 47 are relatively flexible in composition, and can be configured according to actual needs, which will not be limited in the embodiments of the present application.

[0157] 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: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A caching component, characterized in that, include: The guide sub-assembly (54) includes a guide member (541) or a guide groove, wherein the guiding direction of the guide member (541) or the guide groove is a first direction; The first sub-component (51) includes a plurality of rotatably configured first buffer rollers (511) around which the feed belt (3) passes; The second sub-component (52) is spaced apart from the first sub-component (51) along the first direction. The second sub-component (52) includes a plurality of rotatably arranged second buffer rollers (521) for the material belt (3) to pass over. The first sub-component (51) and / or the second sub-component (52) are movably arranged on the guide (541) or the guide groove along the first direction.

2. The caching component according to claim 1, characterized in that, The caching component (5) also includes: A drive sub-component (53) is used to drive the first sub-component (51) and / or the second sub-component (52) to move along the first direction.

3. The caching component according to claim 2, characterized in that, The driving sub-component (53) includes: Drive wheel (531); Driven wheel (532), the driven wheel (532) and the driving wheel (531) are spaced apart along the first direction; A conveyor belt (533) is sleeved on the outside of both the driven wheel (532) and the driving wheel (531) and is connected to the first sub-assembly (51) and / or the second sub-assembly (52). A buffer drive (534) is used to drive the drive wheel (531) to rotate, so that the drive wheel (531) drives the driven wheel (532) to rotate via the conveyor belt (533).

4. The caching component according to claim 3, characterized in that, The cache driver (534) is a servo motor; and / or, The conveyor belt (533) is a synchronous belt.

5. The caching component according to claim 3 or 4, characterized in that, The guide component (541) is a guide rail; The guide sub-assembly (54) includes only one of the guide rails; and / or, the guide rail is located on the outside of the conveyor belt (533).

6. The caching component according to any one of claims 1-4, characterized in that, The caching component (5) also includes: The guide plate (56) includes an arc plate segment (561), the first buffer roller (511) or the second buffer roller (521) is disposed on the radial inner side of the circle in which the arc plate segment (561) is located, and there is a gap between the arc plate segment (561) and the first buffer roller (511) or the second buffer roller (521); the gap allows the material strip (3) to pass through, or the gap allows the tabs on the electrode sheet of the material strip (3) to pass through.

7. The caching component according to claim 6, characterized in that, The guide plate (56) also includes: Two guide plate segments (562) are provided, and the two guide plate segments (562) are respectively connected to the two ends of the arc extension direction of the arc plate segment (561); each of the two guide plate segments (562) has a connecting end connected to the arc plate segment (561) and a remote end (5621) disposed away from the arc plate segment (561), and the distance between the two guide plate segments (562) gradually increases from the connecting end to the remote end (5621).

8. A die-cutting and winding device, characterized in that, include: The first die-cutting cache module (1) includes: The first unwinding assembly (11) is used to unwind the material strip (3); The first die-cutting component (12) is used to die-cut the strip (3) unwound by the first unwinding component (11); A winding module (2) is used to wind the strip (3) after being die-cut by the first die-cutting component (12); a buffer component (5) according to any one of claims 1-7 is provided between the first die-cutting component (12) and the winding module (2) so that the buffer component (5) buffers the strip (3) between the first die-cutting component (12) and the winding module (2).

9. The die-cutting and winding equipment according to claim 8, characterized in that, The die-cutting and winding equipment also includes: rack (6); The base (7) is disposed on the rack (6), and the cache component (5) is disposed on the base (7).

10. The die-cutting and winding equipment according to claim 8, characterized in that, The material strip (3) includes a first material strip (31) and a second material strip (32); The first die-cutting buffer module (1) is provided in two parts. One of the first die-cutting buffer modules (1) is used to unwind the first strip (31), and the other of the first die-cutting buffer module (1) is used to unwind the second strip (32). The winding module (2) is used to wind the first strip (31) and the second strip (32) in the two first die-cutting buffer modules (1).

11. The die-cutting and winding equipment according to claim 8, characterized in that, The strip (3) includes a first strip (31) and a second strip (32), and the first unwinding component (11) in the first die-cutting buffer module (1) is used to unwind the first strip (31); The die-cutting and winding equipment also includes: The second die-cutting cache module (4) includes: The second unwinding assembly (41) is used to unwind the second strip (32); The second die-cutting component (42) is used to die-cut the second strip (32) unwound by the second unwinding component (41); Adhesive application assembly (43), the adhesive application assembly (43) is used to apply adhesive to the second strip (32) after it has been die-cut by the second die-cutting assembly (42); The winding module (2) is used to wind the second strip (32) after the adhesive is applied by the adhesive-applying assembly (43) and the first strip (31) after the die-cutting assembly (12); A buffer component (5) is provided between the second die-cutting component (42) and the adhesive application component (43) so that the buffer component (5) buffers the second strip (32) between the second die-cutting component (42) and the adhesive application component (43); and / or, a buffer component (5) is provided between the adhesive application component (43) and the winding module (2) so that the buffer component (5) buffers the second strip (32) between the adhesive application component (43) and the winding module (2).

12. The die-cutting and winding equipment according to claim 11, characterized in that, The second die-cutting buffer module (4) further includes an adhesive application and photography component (46), which is disposed between the adhesive application component (43) and the winding module (2) and is used to take pictures of the second strip (32) after the adhesive application component (43) has applied adhesive.

13. The die-cutting and winding equipment according to claim 8, characterized in that, The first die-cutting buffer module (1) further includes a first correction component (13), which is disposed between the buffer component (5) and the winding module (2) and is used to correct the deviation of the strip (3).

14. The die-cutting and winding equipment according to claim 8, characterized in that, The first die-cutting buffer module (1) further includes a first photographing component (14), which is disposed between the first die-cutting component (12) and the winding module (2) and is used to take pictures of the strip (3) after it is die-cut by the first die-cutting component (12).

15. The die-cutting and winding equipment according to claim 8, characterized in that, The first die-cutting buffer module (1) further includes a first thickness measuring component (15), which is disposed between the first unwinding component (11) and the first die-cutting component (12) and is used to measure the thickness of the strip (3).

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