CN223836760U - Cutting mechanism, sheet making device, lamination equipment and battery production system - Google Patents

Abstract

The utility model relates to the technical field of battery manufacturing and discloses a cutting mechanism, a sheet-making device, lamination equipment and a battery production system, which comprise a cutter rest and a battery production system, wherein the cutter rest comprises a main body; the upper cutter comprises a main body, an upper cutter, a lower cutter, a cutter body driving assembly and a cutter body driving assembly, wherein the first end of the upper cutter is connected with the main body, the second end of the upper cutter extends towards the direction away from the main body so that the upper cutter forms a cantilever structure, the lower cutter is arranged opposite to the upper cutter, the first end of the lower cutter is connected with the main body, the second end of the lower cutter extends towards the direction away from the main body so that the lower cutter forms the cantilever structure, and the upper cutter and the lower cutter are suitable for being mutually close to or mutually far away under the driving of the cutter body driving assembly. According to the utility model, the upper cutter and the lower cutter form a cantilever structure through the main body, so that the feeding jig of the material belt can conveniently pass through the space between the upper cutter and the lower cutter, the limitation on the width of the feeding jig is avoided, and the overlarge occupied space caused by overlarge volume of the cutting mechanism is avoided, thereby facilitating the layout of the cutting mechanism.

Description

Cutting mechanism, sheet making device, lamination equipment and battery production system

Technical Field

The utility model relates to the technical field of battery manufacturing, in particular to a cutting mechanism, a sheet making device, lamination equipment and a battery production system.

Background

In the production of batteries, it is often the case that the rolled material web needs to be cut. For example, the strip of pole pieces is cut Cheng Jipian pieces and the pieces are then used in the lamination process of the cells. In the prior art, when adopting the hardware mould cutting material area, the lower sword is fixed setting usually, makes the upper knife orientation lower sword remove to with lower sword cooperation with the material area cut off, and set up guide structure between upper knife along length direction's opposite both ends and the lower sword and carry out the direction spacing. However, the arrangement of the guide structures at two ends can limit the width of the jig passing between the upper cutter and the lower cutter, and if the jig passes, the distance between the guide structures at two ends needs to be set far, so that the occupied space of the cutting mechanism is increased, and the layout of the cutting mechanism is not facilitated.

Disclosure of utility model

In view of the above, the utility model provides a cutting mechanism, a sheet-making device, a lamination device and a battery production system, so as to solve the problems that the occupied space of the cutting mechanism in the prior art is increased and the layout of the cutting mechanism is not facilitated.

The utility model provides a cutting mechanism which comprises a cutter rest, an upper cutter, a lower cutter, a cutter body driving assembly and a cutter body driving assembly, wherein the cutter rest comprises a main body, a first end of the upper cutter is connected with the main body, a second end of the upper cutter extends towards a direction away from the main body so that the upper cutter forms a cantilever structure, the lower cutter is opposite to the upper cutter, a first end of the lower cutter is connected with the main body, a second end of the lower cutter extends towards a direction away from the main body so that the lower cutter forms a cantilever structure, and the upper cutter and the lower cutter are suitable for being mutually close to or mutually far away from each other under the driving of the cutter body driving assembly.

In an alternative embodiment, the tool rest further comprises an upper tool rest, the upper tool rest is arranged on one side, far away from the lower tool, of the upper tool rest, a first end of the upper tool rest is connected with the main body, a second end of the upper tool rest extends towards a direction far away from the main body, the first end of the upper tool rest is in transmission connection with the tool body driving assembly, an upper guide structure is arranged between the second end of the upper tool rest and the second end of the upper tool rest, and/or the tool rest further comprises a lower tool rest, the lower tool rest is arranged on one side, far away from the upper tool, of the lower tool rest, the first end of the lower tool rest is connected with the main body, the second end of the lower tool rest extends towards a direction far away from the main body, the first end of the lower tool is in transmission connection with the tool body driving assembly, and a lower guide structure is arranged between the second end of the lower tool rest and the second end of the lower tool rest.

In an alternative embodiment, the main body includes a frame body, a guiding and fixing structure and a guiding and moving structure, the guiding and fixing structure is connected with the frame body, the guiding and moving structure is movably arranged along the guiding and fixing structure, two guiding and moving structures are arranged on the guiding and fixing structure at intervals, and the upper cutter and the lower cutter are respectively connected with the two guiding and moving structures.

In an alternative embodiment, the guiding and fixing structures are arranged on the frame body at intervals, two guiding and moving structures are arranged on each guiding and fixing structure, the upper cutter is connected with the guiding and moving structure above each guiding and fixing structure, and the lower cutter is connected with the guiding and moving structure below each guiding and fixing structure.

In an alternative embodiment, the guide fixing structures and the upper guide structures and/or the lower guide structures are arranged along the same straight line, or the guide fixing structures and the upper guide structures and/or the lower guide structures are arranged in a triangle shape.

In an alternative embodiment, a guiding and matching structure is arranged between the upper cutter and the lower cutter, one end of the guiding and matching structure is connected with the second end of the upper cutter, the other end of the guiding and matching structure is connected with the second end of the lower cutter, and the guiding and matching structure is suitable for being matched or separated.

In an alternative embodiment, the cutter body driving assembly comprises an upper cutter driving structure and a lower cutter driving structure, wherein the upper cutter driving structure is in transmission connection with the upper cutter, and the lower cutter driving structure is in transmission connection with the lower cutter, or the cutter body driving assembly is in transmission connection with the upper cutter and the lower cutter at the same time and is suitable for driving the upper cutter and the lower cutter to move towards opposite directions at the same time.

In an alternative embodiment, the upper cutter driving structure comprises an upper servo motor, an upper screw rod and an upper connecting block, the upper servo motor is arranged on the cutter frame, the upper servo motor is suitable for driving the upper screw rod to rotate, the upper connecting block is in threaded connection with the upper screw rod and is connected with the upper cutter, and/or the lower cutter driving structure comprises a lower servo motor, a lower screw rod and a lower connecting block, the lower servo motor is arranged on the cutter frame, the lower servo motor is suitable for driving the lower screw rod to rotate, and the lower connecting block is in threaded connection with the lower screw rod and is connected with the lower cutter.

In an alternative embodiment, the cutter body driving assembly comprises a servo motor and a bidirectional screw rod, the upper cutter and the lower cutter are respectively connected with bidirectional threads on the bidirectional screw rod, the servo motor is suitable for driving the bidirectional screw rod to rotate so as to enable the upper cutter and the lower cutter to move reversely, or the cutter body driving assembly comprises a servo motor, an upper cutter cam, an upper cutter connecting rod structure, a lower cutter cam and a lower cutter connecting rod structure, the servo motor is in transmission connection with the upper cutter cam and the lower cutter cam, one end of the upper cutter connecting rod structure is movably connected with the peripheral wall of the upper cutter cam, the other end of the upper cutter connecting rod structure is connected with the upper cutter, one end of the lower cutter connecting rod structure is movably connected with the peripheral wall of the lower cutter cam, and the other end of the lower cutter connecting rod structure is connected with the lower cutter.

In an alternative embodiment, the cutting mechanism further comprises an upper dust collecting structure, the upper dust collecting structure has an upper dust collecting position, the upper dust collecting structure is fixed at the upper dust collecting position, or the upper dust collecting structure is movably arranged to be close to or far from the upper dust collecting position, and/or,

The cutting mechanism further comprises a lower dust collecting structure, the lower dust collecting structure is provided with a lower dust collecting position, and the lower dust collecting structure is fixed at the lower dust collecting position or is movably arranged so as to be close to or far away from the lower dust collecting position.

In an alternative embodiment, the upper dust collecting structure is connected with the upper knife, or alternatively, the cutting mechanism further comprises an upper dust collecting driving structure, the upper dust collecting driving structure is in transmission connection with the upper dust collecting structure, and/or,

The lower dust collection structure is connected with the lower knife, or the cutting mechanism further comprises a lower dust collection driving structure, and the lower dust collection driving structure is in transmission connection with the lower dust collection structure.

In a second aspect, the utility model also provides a tabletting device comprising the cutting mechanism.

In an alternative embodiment, the tabletting device further comprises a feeding jig adapted to drive the material strip to move between the upper blade and the lower blade.

The utility model further provides lamination equipment, which comprises a lamination table, the sheet making device arranged at the side of the lamination table, and a pole piece carrying device suitable for transferring between the sheet making device and the lamination table.

In a fourth aspect, the utility model also provides a battery production system comprising the lamination device.

The technical scheme of the application has the following advantages:

The first end of the upper cutter and the first end of the lower cutter are connected with the cutter body driving assembly arranged on the main body, and the second end of the upper cutter and the second end of the lower cutter are enabled to extend towards the direction away from the main body, so that the upper cutter and the lower cutter form a cantilever structure through the main body, a feeding jig of a material belt conveniently penetrates between the upper cutter and the lower cutter, the limitation on the width of the feeding jig is avoided, the occupation space is also avoided from being excessively large due to the overlarge volume of the cutting mechanism, and the layout of the cutting mechanism is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first embodiment of a cutting mechanism according to an embodiment of the present utility model;

FIG. 2 is a rear view of the cutting mechanism shown in FIG. 1;

FIG. 3 is a left side view of the cutting mechanism shown in FIG. 1;

FIG. 4 is a top view of the cutting mechanism shown in FIG. 1;

FIG. 5 is a schematic view of an arrangement of a guiding and fixing structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of another arrangement of the guiding and fixing structure according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a second implementation of a cutting mechanism according to an embodiment of the present utility model;

FIG. 8 is a rear view of the cutting mechanism shown in FIG. 7;

FIG. 9 is a right side view of the cutting mechanism shown in FIG. 7;

FIG. 10 is a top view of the cutting mechanism shown in FIG. 8;

FIG. 11 is a schematic view showing a structure of a ball bushing guide assembly of a guide fixing structure, a guide moving structure and a guide engaging structure of a cutting mechanism according to a third embodiment of the present utility model;

FIG. 12 is a front view of the cutting mechanism shown in FIG. 11;

FIG. 13 is a schematic view showing a structure of a guide fixing structure, a guide moving structure and a guide engaging structure of a guide assembly of a guide rail guide block in a third embodiment of a cutting mechanism according to an embodiment of the present utility model;

FIG. 14 is a rear view of the cutting mechanism shown in FIG. 13;

FIG. 15 is a right side view of the cutting mechanism shown in FIG. 13;

FIG. 16 is a top view of the cutting mechanism of FIG. 14

FIG. 17 is a schematic view of an alternative embodiment of a third embodiment of a cutting mechanism of an embodiment of the present utility model;

FIG. 18 is a front view of the cutting mechanism shown in FIG. 17;

FIG. 19 is a left side view of the cutting mechanism shown in FIG. 17;

FIG. 20 is a top view of the cutting mechanism shown in FIG. 17;

Fig. 21 is a schematic structural view of an upper blade, a lower blade, an upper dust collecting structure and a lower dust collecting structure according to an embodiment of the present utility model.

Reference numerals illustrate:

11. Upper knife, 111, upper knife body, 112, upper knife holder, 12, lower knife, 121, lower knife body, 122, lower knife holder, 13, knife rest, 131, main body, 1311, frame, 1312, guiding fixing structure, 1313, guiding moving structure, 132, upper knife rest, 133, upper guiding structure, 134, lower knife rest, 135, lower guiding structure, 14, knife rest driving structure, 141, linear driving part, 142, moving seat, 15, upper knife driving structure, 151, upper servo motor, 152, upper screw rod, 153, upper connecting block, 16, lower knife driving structure, 161, lower servo motor, 162, lower screw rod, 163, lower connecting block, 17, guiding matching structure, 18, knife body driving structure, 19, servo motor, 20, bidirectional screw rod, 101, upper knife cam, 102, upper knife connecting rod structure, 103, lower knife cam, 104, lower knife connecting rod structure, 105, cam follower, 106, guide rail, 61, upper dust collecting structure, 62, lower dust collecting structure.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiments of the present utility model are described below with reference to fig. 1 to 16.

According to an embodiment of the present utility model, in one aspect, there is provided a cutting mechanism comprising a blade carrier 13, a blade body drive assembly, an upper blade 11, and a lower blade 12. The tool rest 13 comprises a main body 131, a first end of the upper tool 11 is connected with the main body 131, a second end of the upper tool 11 extends towards a direction away from the main body 131 so that the upper tool 11 forms a cantilever structure, the lower tool 12 is arranged opposite to the upper tool 11, the first end of the lower tool 12 is connected with the main body 131, and a second end of the lower tool 12 extends towards a direction away from the main body 131 so that the lower tool 12 forms a cantilever structure. Wherein, under the drive of the cutter body driving assembly, the upper cutter 11 and the lower cutter 12 are suitable for approaching each other or moving away from each other.

By applying the cutting mechanism of the embodiment, the first end of the upper cutter 11 and the first end of the lower cutter 12 are connected with the main body 131, and the second end of the upper cutter 11 and the second end of the lower cutter 12 are extended towards the direction away from the main body 131, so that the upper cutter 11 and the lower cutter 12 form a cantilever structure through the main body 131, a feeding jig of a material belt conveniently penetrates between the upper cutter 11 and the lower cutter 12, the width of the feeding jig is prevented from being limited, and the occupation space is prevented from being too large due to the overlarge volume of the cutting mechanism, so that the layout of the cutting mechanism is facilitated.

It should be noted that, in the related art, the lower blade 12 is generally fixed, and the upper blade 11 is driven to move toward the lower blade 12, so that the upper blade 11 cooperates with the lower blade 12 to cut the material strip. If the feeding jig is required to drive the material belt to pass through between the upper cutter 11 and the lower cutter 12, if the lower cutter 12 is fixed, the feeding jig is easy to interfere with the lower cutter 12, so that the smooth proceeding of the cutting process is affected. Therefore, in this embodiment, under the driving of the cutter body driving assembly, the upper cutter 11 and the lower cutter 12 can move toward the directions approaching each other to cut the material tape, or move toward the directions separating from each other to avoid the feeding jig, and the upper cutter 11 and the lower cutter 12 are both formed in cantilever structures, so that the feeding jig can pass through between the upper cutter 11 and the lower cutter 12 smoothly.

It is worth noting that the upper blade 11 and the lower blade 12 are adapted to shear or die cut the strip to be cut at the cutting position.

The shearing means that the upper blade 11 and the lower blade 12 each have a blade, and the material tape is sheared at the cutting position by the blades of the upper blade 11 and the lower blade 12, and the upper blade 11 and the lower blade 12 usually reach the cutting position at the same time for the shearing scheme. The punching means that one of the upper blade 11 and the lower blade 12 is provided with a cutting edge, the other of the upper blade 11 and the lower blade 12 is a supporting plane which is arranged opposite to the cutting edge, the cutting edge punches a material strip on the supporting plane, and for the scheme of punching, the one of the upper blade 11 and the lower blade 12 which is provided with the supporting plane usually preferentially reaches a cutting position, and the one of the upper blade 11 and the lower blade 12 which is provided with the cutting edge is slightly later than the cutting position so as to punch the material strip of the pole piece corresponding to the supporting plane.

Various embodiments of the cutting mechanism 1 are described below.

In the first embodiment, as shown in fig. 1 to 4, the cutter body driving assembly comprises an upper cutter driving structure 15 and a lower cutter driving structure 16, the upper cutter driving structure 15 is in transmission connection with the upper cutter 11, and the lower cutter driving structure 16 is in transmission connection with the lower cutter 12, so that when the upper cutter driving structure 15 drives the upper cutter 11 to descend and the lower cutter driving structure 16 drives the lower cutter 12 to ascend and cut off the material belt under the cooperation of the upper cutter 11 and the lower cutter 12 during cutting action.

The lower blade 12 is driven by the lower blade driving structure 16 to rise to the cutting position, so that the lower blade 12 can be contacted with the material belt and has a supporting function on the material belt, and then the upper blade 11 is driven by the upper blade driving structure 15 to descend and cooperate with the lower blade 12 to cut off the material belt. Specifically, the lower knife driving structure 16 may be made to drive the lower knife 12 to move first, and after a predetermined time interval, the upper knife driving structure 15 may be made to drive the upper knife 11 to move, or the lower knife 12 may be made to have a shorter stroke than the upper knife 11, and the lower knife driving structure 16 and the upper knife driving structure 15 may simultaneously drive the lower knife 12 and the upper knife 11. At this time, the upper blade 11 and the lower blade 12 cut the material tape by punching, and the upper blade 11 has a blade and the lower blade 12 has a supporting plane.

Naturally, the upper blade 11 may be lowered to the cutting position under the driving of the upper blade driving structure 15, so that the upper blade 11 may be brought into contact with the material tape and may press the material tape, and then the lower blade 12 may be raised and cooperate with the upper blade 11 to cut the material tape under the driving of the lower blade driving structure 16. Specifically, the upper blade driving structure 15 may be configured to drive the upper blade 11 to move first, and after a predetermined time, the lower blade driving structure 16 may be configured to drive the lower blade 12 to move, or the upper blade 11 may be configured to have a shorter stroke than the lower blade 12, and the lower blade driving structure 16 and the upper blade driving structure 15 may simultaneously drive the lower blade 12 and the upper blade 11. At this time, the upper blade 11 and the lower blade 12 cut the material tape by punching, and the upper blade 11 has a supporting plane and the lower blade 12 has a blade.

Alternatively, the upper blade driving mechanism 15 may be configured to drive the upper blade 11 downward, the lower blade driving mechanism 16 may be configured to drive the lower blade 12 upward, and the upper blade 11 and the lower blade 12 may be configured to reach the cutting position at the same time. At this time, the upper blade 11 and the lower blade 12 cut the material tape in a shearing manner, and both the upper blade 11 and the lower blade 12 have blades.

In the first embodiment, as shown in fig. 1 and 2, the tool rest 13 further includes an upper tool rest 132, the upper tool rest 132 is disposed on a side of the upper tool 11 away from the lower tool 12, a first end of the upper tool rest 132 is connected with the main body 131, a second end of the upper tool rest 132 is disposed towards a direction away from the main body 131, a first end of the upper tool 11 is in transmission connection with the upper tool driving structure 15, an upper guiding structure 133 is disposed between the second end of the upper tool 11 and the second end of the upper tool rest 132, the tool rest 13 further includes a lower tool rest 134, the lower tool rest 134 is disposed on a side of the lower tool 12 away from the upper tool 11, a first end of the lower tool rest 134 is connected with the main body 131, a second end of the lower tool rest 134 is disposed towards a direction away from the main body 131, a first end of the lower tool 12 is in transmission connection with the lower tool driving structure 16, and a lower guiding structure 135 is disposed between a second end of the lower tool 12 and a second end of the lower tool rest 134. So set up, utilize upper knife rest 132 to install upper knife 11 in main part 131, utilize lower knife rest 134 to install lower knife 12 in main part 131 to, through setting up the removal of upper knife 11 and leading structure 133 and leading spacing, with the positional accuracy of guaranteeing upper knife 11, through setting up down leading structure 135 and leading spacing to the removal of lower knife 12, with the positional accuracy of guaranteeing lower knife 12, thereby guarantee the cooperation precision of upper knife 11 and lower knife 12, and then improve the cutting precision to the material area.

Further, in the present embodiment, the upper guide structure 133 and the lower guide structure 135 are both ball bushing guide assemblies. Of course, the upper guide structure 133 and/or the lower guide structure 135 may also be rail guide block guide assemblies.

In one embodiment, as shown in fig. 1 and 3, the main body 131 includes a frame body 1311, a guide fixing structure 1312, and a guide moving structure 1313, the guide fixing structure 1312 is connected to the frame body 1311, the guide moving structure 1313 is movably disposed along the guide fixing structure 1312, two guide moving structures 1313 are disposed on the guide fixing structure 1312 at intervals, and the upper blade 11 and the lower blade 12 are connected to the two guide moving structures 1313, respectively. So set up, through the direction cooperation of direction moving structure 1313 and direction fixed knot structure 1312, the first end of last sword 11 and the first end of lower sword 12 are led spacingly to the removal of last sword 11 and lower sword 12, further guarantee the position accuracy of last sword 11 and lower sword 12, and then further improve the cutting accuracy to the material area.

In this embodiment, as shown in fig. 1 and 3, the guide fixing structure 1312 is a guide shaft, the guide moving structure 1313 is a guide sleeve, and balls are disposed between the guide shaft and the guide sleeve to form a ball bushing guide assembly. Of course, the guide fixing structure 1312 may be a guide rail, and the guide moving structure 1313 is a guide block, accordingly, to form a guide assembly of the guide rail guide block (see fig. 14).

Further, referring to fig. 1 and 4, a plurality of guide fixing structures 1312 are disposed on the frame body 1311 at intervals, two guide moving structures 1313 are disposed on each guide fixing structure 1312, the upper cutter 11 is simultaneously connected to the guide moving structure 1313 located above on each guide fixing structure 1312, and the lower cutter 12 is simultaneously connected to the guide moving structure 1313 located below on each guide fixing structure 1312. Because the upper blade 11 and the lower blade 12 are both cantilever structures, the first end of the upper blade 11 is matched with the guide fixing structures 1312 through the guide moving structures 1313, the first end of the lower blade 12 is matched with the guide fixing structures 1312 through the guide moving structures 1313, the overall rigidity of the upper blade 11 and the lower blade 12 is improved, the stability of the upper blade 11 and the lower blade 12 is improved, and the cutting precision is ensured.

Specifically, as shown in fig. 4 and 5, a plurality of guide fixing structures 1312 and the upper guide structure 133 and/or the lower guide structure 135 are arranged along the same straight line, and further, in this embodiment, the upper guide structure 133 and the lower guide structure 135 are arranged in a line along a vertical direction (a direction perpendicular to the drawing plane in fig. 5), the guide fixing structures 1312 are arranged in two, and on the drawing plane in fig. 5, the two guide fixing structures 1312 and the upper guide structure 133 and the lower guide structure 135 are arranged along the same straight line. Of course, the guide fixing structure 1312 may be provided in other numbers, for example, three, four, etc.

Alternatively, as shown in fig. 6, the plurality of guide fixing structures 1312 and the upper guide structure 133 and/or the lower guide structure 135 are arranged in a triangle shape, thereby providing the main body 131 with higher stability. Further, the upper guide structure 133 and the lower guide structure 135 are disposed in line in the vertical direction (the direction perpendicular to the drawing plane in fig. 6), and the guide fixing structure 1312 is disposed in two, and on the drawing plane shown in fig. 6, the two guide fixing structures 1312 are disposed at two vertices of a triangle, and the location of the upper guide structure 133 (which is actually the location of the lower guide structure 135) is disposed at the other vertex of the triangle. Of course, the number of the guide fixing structures 1312 may be other, for example, three, four, etc., and specifically, the guide fixing structures 1312 may be added between the two guide fixing structures 1312 shown in fig. 6.

It should be noted that the guide fixing structures 1312 may be arranged along the same line as the upper guide structure 133 or may be arranged in a triangle shape, or the guide fixing structures 1312 may be arranged along the same line as the lower guide structure 135 or may be arranged in a triangle shape.

In the first embodiment, as shown in fig. 1 to 4, the upper blade driving structure 15 and the lower blade driving structure 16 are both provided on the main body 131.

Specifically, in the first embodiment, as shown in fig. 1 and 3, the upper blade driving structure 15 includes an upper servo motor 151, an upper screw 152 and an upper connection block 153, the upper servo motor 151 is disposed on the tool rest 13, the upper servo motor 151 is adapted to drive the upper screw 152 to rotate, and the upper connection block 153 is in threaded connection with the upper screw 152 and connects with the upper blade 11, so that the upper screw 152 rotates under the driving of the upper servo motor 151, so that the upper connection block 153 moves along the upper screw 152 and drives the upper blade 11 to move. The lower knife driving structure 16 comprises a lower servo motor 161, a lower screw rod 162 and a lower connecting block 163, wherein the lower servo motor 161 is arranged on the knife rest 13, the lower servo motor 161 is suitable for driving the lower screw rod 162 to rotate, the lower connecting block 163 is in threaded connection with the lower screw rod 162 and is connected with the lower knife 12, and therefore, the lower screw rod 162 rotates under the driving of the lower servo motor 161, so that the lower connecting block 163 moves along the lower screw rod 162 and drives the lower knife 12 to move.

Of course, as an alternative embodiment, the upper blade driving structure 15 and the lower blade driving structure 16 may be linear motors, telescopic cylinders, or the like.

In the second embodiment, as shown in fig. 7 to 10, in comparison with the first embodiment, only differences from the first embodiment will be described below.

In a second embodiment, as shown in fig. 7 to 9, the tool holder 13 further includes a lower tool holder 134, the lower tool holder 134 is disposed on a side of the lower tool 12 away from the upper tool 11, a first end of the lower tool holder 134 is connected with the main body 131, a second end of the lower tool holder 134 is disposed toward a direction away from the main body 131, the first end of the lower tool 12 is in driving connection with the lower tool driving structure 16, and a lower guiding structure 135 is disposed between the second end of the lower tool 12 and the second end of the lower tool holder 134.

In the second embodiment, as shown in fig. 7 and 8, a guiding and matching structure 17 is provided between the upper blade 11 and the lower blade 12, one end of the guiding and matching structure 17 is connected with the second end of the upper blade 11, the other end of the guiding and matching structure 17 is connected with the second end of the lower blade 12, and the guiding and matching structure 17 is suitable for being matched or separated.

Specifically, in the second embodiment, as shown in fig. 7 and 8, the lower guide structure 135 is a ball bushing guide assembly, that is, the lower guide structure 135 includes a guide shaft and a guide sleeve, one end of the guide shaft (the lower end of the guide shaft) is connected to the second end of the lower blade carrier 134, the other end of the guide shaft (the upper end of the guide shaft) penetrates the second end of the lower blade 12, the guide sleeve is sleeved outside the guide shaft and is movably disposed along the guide shaft, and the guide sleeve is connected to the second end of the lower blade 12.

Further, as shown in fig. 7 and 8, the guide shaft is extended from the lower blade 12 toward the upper blade 11, and the second end of the upper blade 11 is also provided with a guide sleeve to form a guide engagement structure 17. In the cutting state, the guide sleeve of the upper cutter 11 is inserted and guided with the guide shaft, and in the avoiding state, the guide sleeve of the upper cutter 11 is separated from the guide shaft. It should be noted that, the end of the guide shaft near the upper blade 11 (the upper end of the guide shaft) is provided with a chamfer, so as to facilitate the insertion with the guide sleeve of the upper blade 11.

It should be noted that, as an alternative embodiment, the lower guide structure 135 may also be a guide block guide structure (see fig. 13 and 14). Specifically, the lower guide structure 135 includes a guide rail having one end (lower end of the guide rail) connected to the second end of the lower blade carrier 134 and the other end (upper end of the guide rail) penetrating the second end of the lower blade 12, and a guide block slidably connected to the guide rail and connected to the second end of the lower blade 12. Further, the guide rail is extended from the lower blade 12 toward the upper blade 11, and the second end of the upper blade 11 is also provided with a guide block to form a guide engagement structure 17. In the cutting state, the guide block of the upper blade 11 is inserted and guided with the guide rail, and in the avoidance state, the guide block of the upper blade 11 is separated from the guide rail.

That is, in the second embodiment, a portion of the guide engaging structure 17 is provided integrally with the lower guide structure 135. Of course, the guiding engaging structure 17 and the lower guiding structure 135 may be separately provided, so long as the guiding requirement is satisfied.

The guide engagement structure 17 described above may be applied between the upper blade 11 and the lower blade 12 in the first embodiment.

It should be noted that, in the above-described second embodiment, the tool post 13 includes only the lower tool post 134, and the upper tool post 132 is not provided. Of course, as an alternative embodiment, the tool holder 13 may include only the upper tool holder 132, without providing the lower tool holder 134, and accordingly, the upper guide structure 133 may be provided between the second end of the upper tool 11 and the second end of the upper tool holder 132, and further, the guide engaging structure 17 may be provided along with the upper guide structure 133.

In a third embodiment, the cutter body driving assembly is in driving connection with the upper cutter 11 and the lower cutter 12 at the same time, and is adapted to drive the upper cutter 11 and the lower cutter 12 to move in opposite directions at the same time. At this time, the lower blade 12 and the upper blade 11 may reach the cutting position at the same time under the driving of the blade body driving assembly. For example, the upper blade 11 and the lower blade 12 have equal strokes, and the blade body driving unit drives the upper blade 11 and the lower blade 12 to move in opposite directions at the same time, so that the upper blade 11 is driven to descend and the lower blade 12 is driven to ascend at the same time by the blade body driving unit and the material tape is cut off by the cooperation of the upper blade 11 and the lower blade 12 when the cutting operation is performed.

In the third embodiment, the upper blade 11 and the lower blade 12 each generally have a blade to shear the material tape.

Specifically, in the third embodiment, as shown in fig. 11 to 16, the cutter body driving assembly may include a servo motor 19 and a bi-directional screw 20, and the upper cutter 11 and the lower cutter 12 are respectively connected with bi-directional threads on the bi-directional screw 20, and the servo motor 19 is adapted to drive the bi-directional screw 20 to rotate and to reversely move the upper cutter 11 and the lower cutter 12 under the action of the bi-directional threads.

As an alternative embodiment, in the third embodiment, as shown in fig. 17 to 20, the cutter body driving assembly includes a servo motor 19, an upper cutter cam 101, an upper cutter link structure 102, a lower cutter cam 103, and a lower cutter link structure 104, the servo motor 19 is in transmission connection with both the upper cutter cam 101 and the lower cutter cam 103, one end of the upper cutter link structure 102 is movably connected with the peripheral wall of the upper cutter cam 101, the other end of the upper cutter link structure 102 is connected with the upper cutter 11, one end of the lower cutter link structure 104 is movably connected with the peripheral wall of the lower cutter cam 103, and the other end of the lower cutter link structure 104 is connected with the lower cutter 12. Further, the upper blade cam 101 is connected to the upper blade link structure 102 via a cam follower 105, and the lower blade cam 103 is connected to the lower blade link structure 104 via the cam follower 105. It should be noted that, the tool rest 13 is provided with a guide rail 106, the guide rail 106 extends vertically, and the upper tool connecting rod structure 102 and the lower tool connecting rod structure 104 are slidably connected with the guide rail 106.

In one embodiment, as shown in fig. 21, the cutting mechanism further includes an upper dust collection structure 61, the upper dust collection structure 61 having an upper dust collection position. The upper dust collection structure 61 is fixed at the upper dust collection position, or alternatively, the upper dust collection structure 61 is movably disposed to be close to or apart from the upper dust collection position. Further, the upper dust collecting position is arranged close to the cutting position.

A specific manner in which the upper dust collecting structure 61 is movably provided will be described below.

In one embodiment, as shown in fig. 21, an upper dust collection structure 61 is provided in connection with the upper blade 11. Thus, the upper blade 11 can drive the upper dust collection structure 61 to move simultaneously.

Specifically, in one embodiment, the upper blade 11 and the lower blade 12 are driven by the blade body driving assembly to reach the cutting position while the upper dust collecting structure 61 reaches the upper dust collecting position, and the upper blade 11 and the lower blade 12 are separated from the cutting position while the upper dust collecting structure 61 is separated from the upper dust collecting position.

In addition, in another embodiment, the upper dust collecting structure 61 comprises an upper dust collecting part and an upper dust collecting driving part, wherein the upper dust collecting driving part is connected with the upper knife 11, the upper dust collecting driving part is in transmission connection with the upper dust collecting part, and the upper dust collecting part reaches the upper dust collecting position preferentially to the upper knife 11 and the lower knife 12 reach the cutting position under the driving of the upper dust collecting driving part and the knife body driving assembly, and/or the upper dust collecting part is delayed from the upper dust collecting position to the upper knife 11 and the lower knife 12 from the cutting position. Therefore, the upper dust collecting structure 61 has preferentially reached the upper dust collecting position before the upper blade 11 and the lower blade 12 are cut in cooperation with the cutting position, and the upper blade 11 and the lower blade 12 can be dust-removed before the cutting, and/or the upper dust collecting structure 61 is still in the upper dust collecting position, and the upper blade 11 and the lower blade 12 after the cutting can be dust-removed when the cutting of the upper blade 11 and the lower blade 12 is completed and separated. Therefore, the dust collection effect can be ensured, and the processing quality of the pole piece can be improved.

As an alternative embodiment, the cutting mechanism further comprises an upper dust collection driving structure, which is in transmission connection with the upper dust collection structure 61. That is, the upper dust collecting structure 61 is not integrally provided with the upper blade 11, but is separately provided, and the upper dust collecting structure 61 is driven by an additional upper dust collecting driving structure.

Further, in the above-described alternative embodiment, the upper dust collecting structure 61 reaches the upper dust collecting position while the upper blade 11 and the lower blade 12 reach the cutting position, and the upper dust collecting structure 61 leaves the upper dust collecting position while the upper blade 11 and the lower blade 12 leave the cutting position, driven by the upper dust collecting driving structure and the blade body driving assembly. Alternatively, the upper dust collection structure 61 reaches the upper dust collection position preferentially to the upper blade 11 and the lower blade 12 reaching the cutting position, and/or the upper dust collection structure 61 is delayed from the upper dust collection position to the upper blade 11 and the lower blade 12 from the cutting position, under the driving of the upper dust collection driving structure and the blade body driving assembly.

In one embodiment, as shown in fig. 21, the upper blade 11 is provided with upper dust collecting structures 61 on opposite sides in the second direction.

In one embodiment, as shown in fig. 21, the cutting mechanism further includes a lower dust collection structure 62, the lower dust collection structure 62 having a lower dust collection position. The lower dust collecting structure 62 is fixed at the lower dust collecting position, or the lower dust collecting structure 62 is movably disposed to be close to or apart from the lower dust collecting position. Further, the lower dust collection position is disposed near the cutting position.

The following describes a specific manner in which the lower dust collection structure 62 is movably disposed.

In one embodiment, as shown in FIG. 21, a lower dust collection structure 62 is provided in connection with the lower blade 12. Thus, the lower blade 12 can move the lower dust collecting structure 62 simultaneously.

Specifically, in one embodiment, the upper blade 11 and the lower blade 12 reach the cutting position while the lower dust collecting structure 62 reaches the lower dust collecting position, and the upper blade 11 and the lower blade 12 leave the cutting position while the lower dust collecting structure 62 leaves the lower dust collecting position, under the driving of the blade body driving assembly.

In addition, in another embodiment, the lower dust collecting structure 62 comprises a lower dust collecting part and a lower dust collecting driving part, the lower dust collecting driving part is connected with the lower knife 12, the lower dust collecting driving part is in transmission connection with the lower dust collecting part, and under the driving of the lower dust collecting driving part and the knife body driving assembly, the lower dust collecting part reaches the lower dust collecting position preferentially to the upper knife 11 and the lower knife 12 reach the cutting position, and/or the lower dust collecting part is delayed from the lower dust collecting position to the upper knife 11 and the lower knife 12 from the cutting position. Therefore, the lower dust collecting structure 62 has preferentially reached the lower dust collecting position before the upper blade 11 and the lower blade 12 are cut in cooperation with the cutting position, and the upper blade 11 and the lower blade 12 can be dust-removed before the cutting, and/or the lower dust collecting structure 62 is still in the lower dust collecting position, and the upper blade 11 and the lower blade 12 after the cutting can be dust-removed when the cutting of the upper blade 11 and the lower blade 12 is completed and separated. Therefore, the dust collection effect can be ensured, and the processing quality of the pole piece can be improved.

As an alternative embodiment, the cutting mechanism further comprises a lower dust collection drive structure in driving connection with the lower dust collection structure 62. That is, the lower dust collecting structure 62 is not integrally provided with the lower blade 12, but is separately provided, and the lower dust collecting structure 62 is driven using an additional lower dust collecting driving structure.

Further, in the above-described alternative embodiment, the lower dust collecting structure 62 reaches the lower dust collecting position while the upper blade 11 and the lower blade 12 reach the cutting position, and the lower dust collecting structure 62 leaves the lower dust collecting position while the upper blade 11 and the lower blade 12 leave the cutting position, under the driving of the lower dust collecting driving structure and the blade body driving assembly. The lower dust collecting structure 62 reaches the lower dust collecting position preferentially to the upper blade 11 and the lower blade 12 reaching the cutting position, and/or the lower dust collecting structure 62 is delayed from the lower dust collecting position from the upper blade 11 and the lower blade 12 leaving the cutting position, driven by the lower dust collecting driving structure and the blade body driving assembly.

In one embodiment, as shown in fig. 21, the lower blade 12 is provided with lower dust collection structures 62 on opposite sides in the second direction.

According to another aspect of the embodiment of the utility model, there is also provided a tabletting device comprising the cutting mechanism.

In one embodiment, the tabletting device further comprises a feeding jig adapted to drive the material strip to move between the upper blade 11 and the lower blade 12. Specifically, the feeding jig may be a traction mechanism or a movable tablet table.

It should be noted that the upper blade 11 and the lower blade 12 are movably disposed along the first direction, and the feeding jig is adapted to drive the material belt to move along the second direction and pass between the upper blade 11 and the lower blade 12. Wherein the first direction and the second direction are arranged at an included angle.

In this embodiment, the first direction and the second direction are perpendicular to each other. Further, the first direction is a vertical direction, and the second direction is a horizontal direction.

It is worth to be noted that, the sheet making device of the embodiment can cut the pole piece material belt to form a plurality of pole piece singlechips for manufacturing the battery cells by subsequent lamination.

According to still another aspect of the embodiment of the present utility model, there is also provided a lamination apparatus including a lamination stage, the aforesaid lamination device disposed laterally of the lamination stage, and a pole piece handling device adapted to transfer between the lamination device and the lamination stage.

According to a further aspect of the embodiments of the present utility model, there is also provided a battery production system including the lamination apparatus described above.

Although embodiments of the present utility model have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope of the utility model as defined by the appended claims.

Claims (15)

1. A cutting mechanism, comprising:

A tool holder (13) comprising a body (131);

The upper cutter (11), a first end of the upper cutter (11) is connected with the main body (131), and a second end of the upper cutter (11) extends towards a direction away from the main body (131), so that the upper cutter (11) forms a cantilever structure;

The lower cutter (12) is arranged opposite to the upper cutter (11), a first end of the lower cutter (12) is connected with the main body (131), and a second end of the lower cutter (12) extends towards a direction away from the main body (131) so that the lower cutter (12) forms a cantilever structure;

The cutter body driving assembly is driven by the cutter body driving assembly, and the upper cutter (11) and the lower cutter (12) are suitable for being close to or far away from each other.

2. The cutting mechanism according to claim 1, wherein the blade holder (13) further comprises an upper blade holder (132), the upper blade holder (132) being disposed on a side of the upper blade (11) remote from the lower blade (12), a first end of the upper blade holder (132) being connected to the main body (131), a second end of the upper blade holder (132) extending away from the main body (131), the first end of the upper blade (11) being drivingly connected to the blade body drive assembly, an upper guide structure (133) being disposed between the second end of the upper blade (11) and the second end of the upper blade holder (132), and/or,

The knife rest (13) further comprises a lower knife rest (134), the lower knife rest (134) is arranged on one side, far away from the upper knife (11), of the lower knife rest (12), a first end of the lower knife rest (134) is connected with the main body (131), a second end of the lower knife rest (134) extends towards a direction far away from the main body (131) and is arranged, a first end of the lower knife (12) is in transmission connection with the knife body driving assembly, and a lower guide structure (135) is arranged between a second end of the lower knife (12) and a second end of the lower knife rest (134).

3. The cutting mechanism according to claim 2, wherein the main body (131) comprises a frame body (1311), a guiding and fixing structure (1312) and a guiding and moving structure (1313), the guiding and fixing structure (1312) is connected with the frame body (1311), the guiding and moving structure (1313) is movably arranged along the guiding and fixing structure (1312), two guiding and moving structures (1313) are arranged on the guiding and fixing structure (1312) at intervals, and the upper cutter (11) and the lower cutter (12) are respectively connected with the two guiding and moving structures (1313).

4. A cutting mechanism according to claim 3, wherein a plurality of guide fixing structures (1312) are arranged on the frame body (1311) at intervals, two guide moving structures (1313) are arranged on each guide fixing structure (1312), the upper cutter (11) is simultaneously connected with the guide moving structures (1313) above on each guide fixing structure (1312), and the lower cutter (12) is simultaneously connected with the guide moving structures (1313) below on each guide fixing structure (1312).

5. Cutting mechanism according to claim 4, characterized in that several of the guide fixing structures (1312) and the upper guide structures (133) and/or the lower guide structures (135) are arranged along the same straight line, or alternatively,

The guide fixing structures (1312) and/or the upper guide structures (133) and/or the lower guide structures (135) are/is arranged in a triangle.

6. Cutting mechanism according to any one of claims 1-5, characterized in that a guiding and mating structure (17) is provided between the upper blade (11) and the lower blade (12), one end of the guiding and mating structure (17) being connected to the second end of the upper blade (11), the other end of the guiding and mating structure (17) being connected to the second end of the lower blade (12), the guiding and mating structure (17) being adapted for a mating arrangement or a separate arrangement.

7. The cutting mechanism according to any one of claims 1 to 5, wherein the cutter body drive assembly comprises an upper cutter drive structure (15) and a lower cutter drive structure (16), the upper cutter drive structure (15) being in driving connection with the upper cutter (11), the lower cutter drive structure (16) being in driving connection with the lower cutter (12), or,

The cutter body driving assembly is in transmission connection with the upper cutter (11) and the lower cutter (12) at the same time and is suitable for driving the upper cutter (11) and the lower cutter (12) to move towards opposite directions at the same time.

8. The cutting mechanism according to claim 7, wherein the upper blade driving structure (15) comprises an upper servo motor (151), an upper screw (152) and an upper connecting block (153), the upper servo motor (151) is provided on the blade holder (13), the upper servo motor (151) is adapted to drive the upper screw (152) to rotate, the upper connecting block (153) is in threaded connection with the upper screw (152) and is connected with the upper blade (11), and/or,

Lower knife driving structure (16) include lower servo motor (161), lower lead screw (162) and lower connecting block (163), lower servo motor (161) set up in knife rest (13), lower servo motor (161) are suitable for the drive lower lead screw (162) rotate, lower connecting block (163) with lower lead screw (162) threaded connection and connection lower sword (12).

9. The cutting mechanism as claimed in claim 7, wherein the cutter body driving assembly comprises a servo motor (19) and a bi-directional screw (20), the upper cutter (11) and the lower cutter (12) are respectively connected with bi-directional threads on the bi-directional screw (20), the servo motor (19) is suitable for driving the bi-directional screw (20) to rotate so as to reversely move the upper cutter (11) and the lower cutter (12), or,

The cutter body driving assembly comprises a servo motor (19), an upper cutter cam (101), an upper cutter connecting rod structure (102), a lower cutter cam (103) and a lower cutter connecting rod structure (104), wherein the servo motor (19) is in transmission connection with the upper cutter cam (101) and the lower cutter cam (103), one end of the upper cutter connecting rod structure (102) is movably connected with the peripheral wall of the upper cutter cam (101), the other end of the upper cutter connecting rod structure (102) is connected with the upper cutter (11), one end of the lower cutter connecting rod structure (104) is movably connected with the peripheral wall of the lower cutter cam (103), and the other end of the lower cutter connecting rod structure (104) is connected with the lower cutter (12).

10. The cutting mechanism as set forth in any one of claims 1 to 5, further comprising an upper dust collecting structure (61), the upper dust collecting structure (61) having an upper dust collecting position, the upper dust collecting structure (61) being fixed to the upper dust collecting position, or the upper dust collecting structure (61) being movably disposed so as to be close to or apart from the upper dust collecting position, and/or,

The cutting mechanism further comprises a lower dust collecting structure (62), the lower dust collecting structure (62) is provided with a lower dust collecting position, the lower dust collecting structure (62) is fixed at the lower dust collecting position, or the lower dust collecting structure (62) is movably arranged so as to be close to or far away from the lower dust collecting position.

11. The cutting mechanism according to claim 10, wherein the upper dust collecting structure (61) is connected with the upper knife (11), or the cutting mechanism further comprises an upper dust collecting driving structure which is in transmission connection with the upper dust collecting structure (61), and/or,

The lower dust collection structure (62) is connected with the lower knife (12), or the cutting mechanism further comprises a lower dust collection driving structure, and the lower dust collection driving structure is in transmission connection with the lower dust collection structure (62).

12. A tabletting device comprising a cutting mechanism as claimed in any one of claims 1 to 11.

13. The tabletting apparatus as claimed in claim 12, further comprising a feeding jig adapted to drive a strip of material to move between the upper blade (11) and the lower blade (12).

14. A lamination apparatus, comprising:

a lamination stage;

A sheet-making apparatus as claimed in claim 12 or 13, disposed laterally of said lamination station, and pole piece handling means adapted to transfer between said sheet-making apparatus and said lamination station.

15. A battery production system comprising the lamination apparatus of claim 14.