CN111002377A - Battery pole piece cutting and dust removing device and battery winder - Google Patents
Battery pole piece cutting and dust removing device and battery winder Download PDFInfo
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- CN111002377A CN111002377A CN201911158428.8A CN201911158428A CN111002377A CN 111002377 A CN111002377 A CN 111002377A CN 201911158428 A CN201911158428 A CN 201911158428A CN 111002377 A CN111002377 A CN 111002377A
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- dust
- pole piece
- cutting
- piece
- assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
- B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
- B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/088—Means for treating work or cutting member to facilitate cutting by cleaning or lubricating
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the technical field of battery manufacturing, and relates to a battery pole piece cutting and dust removing device and a battery winder, which comprise a cutting assembly, a positioning assembly and a dust removing assembly, wherein the cutting assembly comprises a first driving device, a first cutter, a second driving device and a second cutter, the positioning assembly comprises a first sensing assembly, and the dust removing assembly comprises a material pressing dust absorbing piece and a first dust absorbing device. The dust is left to reach the standard, the pole pieces are automatically cut in a fixed length, and the alignment degree of the positive pole piece and the negative pole piece is improved.
Description
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a battery pole piece cutting and dust removing device and a battery winder.
Background
With the gradual maturity of new energy technologies, lithium batteries have been widely used in various fields due to their characteristics of light weight, large energy storage, large power, no pollution, long service life, small self-discharge coefficient, wide temperature application range, and the like. Correspondingly, the lithium battery manufacturing industry is rapidly developed, and is continuously developed to a multi-process full-automatic direction, and the quality requirement of the lithium battery is higher and higher. It is known that a battery pole piece is cut and wound together with a separator to form a cylindrical cell. As the key equipment for automatically manufacturing the battery core, the lithium battery winding machine and the die-cutting winding all-in-one machine have irreplaceable functions.
However, most of the existing pole pieces are cut by adopting a die cutting process, so that on one hand, overlarge burrs exist on the cut section of the pole piece, the risk of short circuit of the positive pole and the negative pole of the battery is increased, and the cutting alignment precision of the positive pole piece and the negative pole piece is not high; on the other hand, the dust generated during cutting is too large, which seriously affects the safety of the battery cell, and therefore, in the mass production of the battery cell, the dust is the main factor affecting the yield of the battery cell.
Disclosure of Invention
The invention aims to solve the technical problems of excessive burrs on the cut section of a pole piece and dust remaining in the production process of a battery cell.
In order to solve the technical problem, the invention provides a battery pole piece cutting and dust removing device, which adopts the following technical scheme:
the battery pole piece cutting and dust removing device comprises a cutting assembly, a positioning assembly and a dust removing assembly, wherein the positioning assembly and the dust removing assembly are arranged on the cutting assembly; the cutting assembly comprises a main frame body, and a first cutting assembly and a second cutting assembly which are arranged on the main frame body;
the main frame body is enclosed to form a working cavity;
the first cutting assembly comprises a first driving device, a first mounting piece and a first cutter, the first mounting piece is arranged in the working cavity and driven by the first driving device, the first cutter is arranged on the first mounting piece, and the first cutter is used for cutting the pole piece;
the second cutting assembly comprises a second driving device, a second mounting piece which is arranged in the working cavity and driven by the second driving device, and a second cutter which is arranged on the second mounting piece, wherein the second cutter is used for cutting the pole piece from two sides of the pole piece simultaneously and respectively with the first cutter;
the positioning assembly comprises a first sensing assembly, the first sensing assembly is arranged on the main frame body and is used for detecting a positioning mark on the pole piece and providing fixed-length cutting position information of the pole piece to the first driving device and/or the second driving device;
the dust removal assembly comprises a material pressing dust collection piece and a first dust collection device, and the material pressing dust collection piece is arranged in the working cavity and is positioned between the first installation piece and the second installation piece; the first dust suction device is arranged on the material pressing and dust sucking part and used for sucking dust on the cutters.
In some embodiments, the cutting assembly further includes a linear bearing and a guide shaft, the linear bearing is disposed on the main frame along the cutting direction, the guide shaft is inserted into the linear bearing, and one end of the guide shaft is located in the working cavity and is disposed on the corresponding mounting member.
In some embodiments, the cutting assembly further comprises a supporting column and an elastic piece, wherein the supporting column is arranged on the material pressing and dust sucking piece in the cutting direction and is movably inserted into one of the mounting pieces; the elastic piece is sleeved on the supporting column, and the free end of the elastic piece extends out of the material pressing and dust collecting piece, so that the pole piece can be pressed between the material pressing and dust collecting piece and another mounting piece before the first cutter and the second cutter are in butt joint and cut.
In some embodiments, the cutting assembly further includes a limiting member movably inserted into the main frame, one end of the limiting member is located in the working cavity and is disposed on the first mounting member or the second mounting member, and the other end of the limiting member is limited at the outer side of the main frame to fix the moving distance of the corresponding mounting member.
In some embodiments, the output shafts of the first and second driving devices are point-contacted to the first and second mounting members, respectively, in the working cavity, each output shaft is perpendicular to the corresponding mounting member, and the contact end of each output shaft is shaped like a mushroom head.
In some embodiments, the cutting assembly further comprises a clamping block, the clamping block is arranged on the corresponding mounting part at a position corresponding to the output shaft, and a movable cavity communicated with the working cavity is formed on each clamping block; each output shaft is movably inserted in the corresponding clamping block, and the contact end of each output shaft can move in the corresponding movable cavity in a telescopic mode and is limited in the movable cavity after being retracted.
In some embodiments, the main frame body has a first opening communicating with the working chamber, the first opening being an inlet of the pole piece into the working chamber; the first induction assembly comprises a first linear slide rail, a first support and a first sensor, and the first linear slide rail is arranged on the main frame body at one side close to the first opening and is parallel to the corresponding mounting part; the first support is Z-shaped, one end of the first support is connected with the first linear sliding rail in an avoiding mode, and the other end of the first support is provided with the first sensor in an avoiding mode.
In some embodiments, the material pressing and dust collecting piece is a hollow cavity structure with an opening at one end, an inclined surface structure is arranged at a corner of the material pressing and dust collecting piece close to the cutting position of the cutter, and a long strip-shaped dust collecting hole communicated with an inner cavity of the material pressing and dust collecting piece is formed in the inclined surface structure; the first dust suction device comprises a first dust suction pipe, and the first dust suction pipe is inserted into the inner cavity of the material pressing dust suction piece;
the main frame body is provided with a second opening communicated with the working cavity, and the second opening is an outlet through which the pole piece moves out of the working cavity; the dust removal assembly further comprises a second dust suction device and a dust removal device, wherein the second dust suction device is arranged on the corresponding mounting part at one side close to the second opening and is used for sucking dust removed by the dust removal device; and the dust removing device is arranged on the corresponding second dust collecting device at one side close to the pole piece and is positioned below the corresponding cutter for removing dust on the pole piece.
In some embodiments, the positioning assembly further comprises a second sensing assembly comprising a mount, a second bracket, and a second sensor, the mount being located outside the main frame; the second support is connected to the mounting seat in a sliding mode along the direction perpendicular to the cutting direction and is located below the main frame body; the second sensor is arranged on the second support and used for detecting the position of the pole piece and providing the position deviation information of the pole piece for the deviation correcting device.
In order to solve the technical problem, the invention also provides a battery winder, which adopts the following technical scheme: the battery winder comprises the battery pole piece cutting and dust removing device.
Compared with the prior art, the battery pole piece cutting and dust removing device and the battery winder provided by the invention have the following main beneficial effects:
the battery pole piece cutting and dust removing device detects the positioning identification on the pole piece through the first sensing assembly so as to provide fixed-length cutting position information of the pole piece for the driving device, after the driving device receives the position information, the driving device drives the cutter on the corresponding mounting plate to move along the cutting direction of the pole piece, wherein the first cutter and the second cutter can simultaneously and respectively cut the pole piece from two sides of the pole piece in a centering way, the material pressing and dust collecting piece is positioned between the two mounting pieces, the first dust collecting device is arranged on the material pressing and dust collecting piece and can absorb dust on each cutter, and therefore, the battery pole piece cutting and dust removing device and the battery winding machine can reduce burrs of a cutting section of the pole piece on one hand, thereby effectively ensuring the roughness of the pole piece, further improving the safety performance of a battery and simultaneously reducing dust infected on the cutter and the pole piece; on the other hand, the automatic fixed-length cutting of the pole pieces can be accurately carried out, the alignment degree of the positive pole piece and the negative pole piece is favorably improved, and the yield of the battery cell in mass production is favorably improved.
Drawings
In order to illustrate the solution of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the invention, and that other drawings may be derived from these drawings by a person skilled in the art without inventive effort. Wherein:
FIG. 1 is a schematic perspective view of a battery pole piece trimming and dust removing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a cutting assembly of the battery pole piece cutting and dust removing device shown in FIG. 1;
FIG. 3 is a schematic perspective view of a positioning assembly of the battery pole piece trimming and dust removing apparatus shown in FIG. 1;
fig. 4 is a schematic perspective view of a dust removing assembly of the battery pole piece trimming and dust removing device in fig. 1.
The reference numbers in the drawings are as follows:
100. a battery pole piece cutting and dust removing device; 200. cutting direction;
1. cutting the assembly; 11. a main frame body; 111. a working chamber; 112. a first opening; 114. avoiding holes; 12. a first cutting assembly; 121. a first driving device; 1211. an output shaft; 122. a first mounting member; 123. a first cutter; 13. a second cutting assembly; 131. a second driving device; 132. a second mount; 133. a second cutter; 14. a linear bearing; 15. a guide shaft; 16. a support pillar; 17. an elastic member; 18. a limiting member; 19. a bit block; 191. a movable cavity;
2. a positioning assembly; 21. a first sensing assembly; 211. a first linear guide rail; 212. a first bracket; 213. a first sensor; 214. a first slider; 215. adjusting a knob; 22. a second sensing assembly; 221. a mounting seat; 222. a second bracket; 223. a second sensor; 224. a second linear guide; 23. an avoidance part;
3. a dust removal assembly; 31. a material pressing and dust collecting piece; 311. a bevel structure; 312. a first dust-absorbing hole; 32. a first dust collector/first dust suction pipe; 33. a second dust suction device; 331. a dust collection plate; 332. a second dust suction pipe; 333. connecting blocks; 34. a dust removal device; 341. a second dust suction hole.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terms used in the description of the invention herein are for the purpose of describing particular embodiments only and are not intended to limit the invention, for example, the terms "length," "width," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or position based on the orientation or position shown in the drawings, are for convenience of description only and are not to be construed as limiting the present disclosure.
The terms "including" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures are intended to cover non-exclusive inclusions; the terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order. The meaning of "plurality" is two or more unless specifically limited otherwise.
In the description and claims of the present invention and in the description of the above figures, when an element is referred to as being "fixed" or "mounted" or "provided" or "connected" to another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
Furthermore, reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The embodiment of the invention provides a battery pole piece cutting and dust removing device 100, as shown in fig. 1 to 4, the battery pole piece cutting and dust removing device 100 comprises a cutting assembly 1, a positioning assembly 2 and a dust removing assembly 3, wherein the positioning assembly 2 and the dust removing assembly 3 are arranged on the cutting assembly 1. As shown in fig. 1 and 2, the cutting assembly 1 includes a main frame 11, a first cutting assembly 12, and a second cutting assembly 13, wherein the first cutting assembly 12 and the second cutting assembly 13 are disposed on the main frame 11.
As shown in fig. 1 and 2, the main frame 11 encloses a working chamber 111, and it is understood that the pole piece is generally cut in the working chamber 111. In the present embodiment, the main frame 11 has a first opening 112 and a second opening (not shown) which are communicated with the working chamber 111, specifically, the first opening 112 is an inlet of the pole piece into the working chamber 111, correspondingly, the second opening is an outlet of the pole piece out of the working chamber 111, and usually, the first opening 112 is directly opposite to the second opening. Specifically, in the present embodiment, the main frame 11 is generally a quadrangular frame for simplifying the structure, but may be a frame having another suitable shape.
As shown in fig. 1 and 2, the first cutting assembly 12 includes a first driving device 121, a first mounting member 122 and a first cutter 123, and correspondingly, the second cutting assembly 13 includes a second driving device 131, a second mounting member 132 and a second cutter 133, specifically, in this embodiment, the first driving device 121 and the second driving device 131 are both air cylinders, but in practice, the first driving device 121 and the second driving device 131 may also be other suitable driving devices, such as motors and the like, and both are generally the same driving device.
As further shown in fig. 1 and 2, the first mounting member 122 and the second mounting member 132 are disposed in the working chamber 111, and the first mounting member 122 is driven by the first driving device 121, and the second mounting member 132 is driven by the second driving device 131. In addition, a first cutter 123 is arranged on the first mounting part 122 and used for cutting the pole piece; a second cutter 133 is provided on the second mounting member 132 for cutting the pole piece centrally from both sides thereof simultaneously with the first cutter 123, respectively. It can be understood that, in the present embodiment, the pole piece (not shown) in the working chamber 111 is located between the first cutter 123 and the second cutter 133, wherein the first cutter 123 and the second cutter 133 are arranged in parallel and in a positive opposition, and when cutting the pole piece, the cutting edge of the first cutter 123 and the cutting edge of the second cutter 133 butt-joint from both sides of the pole piece at exactly the same time, so as to cut the pole piece instantaneously at the butt-joint, thereby reducing the size of the burr on the cut surface of the pole piece, and further improving the safety performance of the battery. Obviously, the cutting assembly 1 is mainly used for realizing automatic cutting of the pole piece and ensuring that the roughness of the cut section of the pole piece meets the requirement.
It should be noted that, in the present embodiment, as shown in fig. 1 and fig. 2, the first mounting part 122 is parallel to and spaced from the second mounting part 132, the first driving device 121 and the second driving device 131 are both disposed on the outer sidewall of the main frame 11, and the first driving device 121 is located on a side close to the first mounting part 122, and the second driving device 131 is located on a side close to the second mounting part 132. Preferably, the first cutter 123 is an upper cutter, and the second cutter 133 is a lower cutter; first mounting member 122 and second mounting member 132 are plate members.
As shown in fig. 1 and fig. 3, the positioning assembly 2 includes a first sensing assembly 21 disposed on the main frame 11, wherein the first sensing assembly 21 is mainly used for detecting a positioning mark on the pole piece and providing fixed-length cutting position information of the pole piece to the first driving device 121 and/or the second driving device 131. It should be noted that the "positioning mark" described herein may be a tab on the pole piece to be cut and/or a mark hole marked in advance, and actually, may also be other marks convenient to identify. Like this, through the position of cutting of waiting to cut the pole piece on the mark pole piece in advance, then discern this location sign through first response subassembly 21, and feed back the positional information of discernment to first drive arrangement 121 and/or second drive arrangement 131, each drive arrangement receives corresponding appointed back, can drive the cutter that corresponds and cut the pole piece in fixed length cutting position department, guarantee with this that the length of the pole piece that cuts out at every turn is the same, and then guarantee the alignment degree of positive plate and negative pole piece in the lamination process.
It should be further noted that the first sensing assembly 21 may only feed back the fixed-length cutting position information of the pole piece to the first driving device 121 (the second driving device 131), and then the first driving device 121 and the second driving device 131 may exchange information to operate synchronously, or the first sensing assembly 21 may feed back the fixed-length cutting position information of the pole piece to the first driving device 121 and the second driving device 131 together, and then both of them operate synchronously independently of each other.
As shown in fig. 1 and 4, the dust removing assembly 3 includes a material pressing dust collector 31 and a first dust collector 32, the material pressing dust collector 31 is disposed in the working chamber 111, and the first dust collector 32 is disposed on the material pressing dust collector 31 for absorbing dust on each cutter, wherein the material pressing dust collector 31 is located between the first mounting member 122 and the second mounting member 132, so that the first dust collector 32 can better absorb dust on each cutter, and the cutting edge of each cutter is smoother, thereby ensuring that the burr of the cut pole piece is smaller, and simultaneously being beneficial to reducing the amount of dust generated during cutting, thereby reducing dust on the pole piece.
In conclusion, compared with the prior art, the battery pole piece cutting and dust removing device 100 at least has the following beneficial effects: on one hand, the burrs of the cut section of the pole piece can be reduced, so that the roughness of the pole piece is effectively ensured, the cycle performance and the safety performance of the battery are improved, and meanwhile, cutting dust infected on a cutter and the pole piece can be reduced; on the other hand, the pole pieces can be accurately and automatically cut in a fixed length mode, and the alignment degree of the positive pole piece and the negative pole piece in the subsequent lamination process is ensured, so that the yield of the battery cell in mass production is improved.
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 to 4.
In some embodiments, as shown in fig. 1 and 2, in order to ensure the straightness of each cutter in the cutting force direction, the cutting assembly 1 further includes a linear bearing 14 and a guide shaft 15, wherein the linear bearing 14 is disposed on the main frame 11 along the cutting direction 200 of the pole piece, the guide shaft 15 is inserted into the linear bearing 14, and one end of the guide shaft 15 is located in the working chamber 111 and is disposed on the corresponding mounting member. Taking the second fixture 132 as an example, as shown in fig. 2, when the second driving device 131 drives the second fixture 132 to move in the cutting direction 200, the linear bearing 14 mounted on the side of the main frame 11 close to the second driving device 131 can ensure that the guide shaft 15 connected thereto moves in the cutting direction 200, so that the guide shaft 15 can ensure that the second fixture 132 always moves in the cutting direction 200. In the present embodiment, in order to simplify the structure and ensure the smoothness of the movement of each mounting member, two linear bearings 14 and two corresponding guide shafts 15 are disposed on one side of the main frame 11 close to the second driving device 131, that is, one linear bearing 14 and one corresponding guide shaft 15 are disposed on two sides of the second driving device 131. Correspondingly, two linear bearings 14 and two corresponding guide shafts 15 are also provided on the side close to the first drive 121, and likewise, one linear bearing 14 and a corresponding guide shaft 15 are provided on each side of the first drive 121.
In some embodiments, as shown in fig. 1 and 2, the cutting assembly 1 further includes a supporting column 16 and an elastic member 17, wherein the supporting column 16 is disposed on the nip vacuum 31 in the cutting direction 200, and the supporting column 16 is movably inserted into one of the mounting members (e.g., the first mounting member 122 or the second mounting member 132). Taking the first mounting member 122 as an example, the first mounting member 122 moves along the supporting column 16 when driven by the corresponding driving device (e.g., the first driving device 121), so that the smoothness of movement of the mounting member can be further ensured. In order to ensure smooth movement of the mounting member, the central axis of the support post 16 and the central axis of the guide shaft 15 should be parallel to the cutting direction 200 of the pole piece.
As shown in fig. 2, the elastic member 17 is sleeved on the supporting column 16, and the free end of the elastic member 17 extends out of the material pressing and dust collecting member 31, so that the pole piece can be pressed between the material pressing and dust collecting member 31 and another mounting member before the first cutter 123 and the second cutter 133 are butt-jointed and cut, for example, the supporting column 16 is movably inserted into the first mounting member 122, so that the pole piece can be pressed between the material pressing and dust collecting member 31 and the second mounting member 132 by the elastic member 17 when acting, and vice versa. Therefore, when the cutting machine is used for cutting, the pole piece can be prevented from slipping so as to further ensure the quality of the cut section. It should be noted that, in the present embodiment, the free length of the elastic element 17 is slightly greater than the length of the supporting column 16, so as to ensure that the elastic element 17 has a certain pre-tightening force to abut against the pole piece.
In the present embodiment, the elastic member 17 is preferably a spring, but may be other suitable elastic structures. In addition, in view of compactness of the structure and simplification of the structure, the support column 16 is preferably provided on the side of the main frame 11 close to the first mounting piece 122, and of course, may be provided on the side of the main frame 11 close to the second mounting piece 132.
In some embodiments, as shown in fig. 1 and fig. 2, in order to further ensure that a pole piece can be cut to a fixed length, the cutting assembly 1 further includes a limiting member 18 movably inserted in the main frame 11, wherein one end of the limiting member 18 is located in the working cavity 111 and is disposed on the first mounting member 122 or the second mounting member 132, and the other end of the limiting member 18 is limited at the outer side of the main frame 11, so that when the corresponding mounting member moves, the mounting member can drive the limiting member 18 to move synchronously, and when the other end of the limiting member 18 abuts against the outer side wall of the main frame 11, the mounting member completes the longest distance movement, generally, the position where the mounting member is located is the position where the mounting member is located when the pole piece is cut, and therefore, the moving distance of the corresponding mounting member can be fixed by the limiting member 18, so as to further ensure that the pole piece is.
In the embodiment, the limiting member 18 is preferably a limiting screw, and usually, the moving distance of the limiting screw can be adjusted according to different cutting lengths of the pole piece, so as to improve the versatility of the battery pole piece cutting and dust removing device 100.
In some embodiments, as shown in fig. 1 and 2, to further ensure the straightness of the cutting force direction of each mounting member, the output shafts 1211 of the first driving device 121 and the second driving device 131 are respectively in point contact with the first mounting member 122 and the second mounting member 132 in the working chamber 111, each output shaft 1211 is perpendicular to the corresponding mounting member, and the contact end of each output shaft 1211 is shaped like a mushroom head. It will be appreciated that the mushroom-head-like contact ends can serve as guides for the movement of the corresponding mounting. In the present embodiment, the output shaft 1211 of the first driving device 121 and the output shaft 1211 of the second driving device 131 are both air cylinder piston rods, wherein after the air cylinder ventilation is started, the corresponding mounting member is driven to move in the cutting direction 200 by the point contact between the piston rod of the air cylinder and the corresponding mounting member.
In some embodiments, as shown in fig. 1 and 2, to facilitate the assembly and disassembly, the cutting assembly 1 further comprises a blocking block 19, wherein the blocking block 19 is disposed on the corresponding mounting member at a position corresponding to the output shaft 1211, and each blocking block 19 is formed with a movable cavity 191 communicating with the working cavity 111. For example, in the present embodiment, 2 block units 19 are provided, wherein 2 block units 19 are respectively provided on the first mounting member 122 and the second mounting member 132.
As shown in fig. 2, each output shaft 1211 is movably inserted into the corresponding locking block 19, and the contact end of each output shaft 1211 can move in a telescopic manner in the corresponding movable cavity 191 and is limited in the movable cavity 191 after being retracted, so that each output shaft 1211 can be directly inserted into the movable cavity 191 from the first opening 112 or can slide out from the movable cavity 191 to the direction of the first opening 112 without detaching the locking block 19, while ensuring that each driving device can normally drive the corresponding mounting member. Specifically, the structure of the blocking block 19 can be formed by splicing two block bodies in an "l" shape with each other in a gap, but other suitable structural shapes can also be adopted.
In some embodiments, as shown in fig. 1 and 3, the first sensing assembly 21 includes a first linear slide 211, a first bracket 212, and a first sensor 213, wherein the first linear slide 211 is disposed on the main frame 11 at a side close to the first opening 112, and the first linear slide 211 is parallel to the corresponding mounting member, so as to ensure that the linearity of the first sensor 213 is adjusted. Specifically, in the present embodiment, the first sensing assembly 21 further includes a first slider 214 and an adjusting knob 215, wherein the first bracket 212 is slidably connected to the first linear guide 211 through the first slider 214, the adjusting knob 215 is disposed on the first slider 214, and the first slider 214 can be quickly tightened or loosened by the adjusting knob 215 so as to adjust the position of the first sensor 213.
Specifically, in the present embodiment, as shown in fig. 3, the first bracket 212 is in a zigzag shape, wherein one end of the first bracket 212 is slidably connected to the first linear sliding rail 211 at the avoiding position 23, and the other end is provided with the first sensor 213 at the avoiding position 23. In this way, by milling away a portion of the material of the first bracket 212 that does not affect the strength thereof to vacate the relief 23, the occupied space of the first sensor 213 is sufficiently reduced on the premise of ensuring the strength of the first sensing assembly 21, so that the overall structure is more compact. It should be noted that, in the present embodiment, in addition to the new structure of the first bracket 212, other components in the first sensing assembly 21 may adopt a conventional structure, and of course, an appropriate new structure may also be adopted.
In some embodiments, as shown in fig. 1 and 4, in order to specifically realize the suction of dust on each tool, the pressure suction member 31 is a hollow cavity structure with an opening at one end, and the pressure suction member 31 is provided with a bevel structure 311 at a corner near the cutting position of the tool. The inclined structure 311 is provided with a first dust suction hole 312, the first dust suction hole 312 is communicated with the inner cavity of the material pressing and dust collecting element 31, and the first dust suction hole 312 is in a strip shape. The first dust suction device 32 comprises a first dust suction pipe 32, and the first dust suction pipe 32 is inserted into the inner cavity of the material pressing dust suction part 31. Specifically, in the present embodiment, the main frame 11 is provided with an avoiding hole 114 (see fig. 1 and fig. 2), wherein one end of the first dust suction pipe 32 is inserted into the material pressing and dust sucking member 31 from the opening end of the material pressing and dust sucking member 31, and the other end extends out of the main frame 11 from the avoiding hole 114.
Specifically, in this embodiment, after the first dust suction pipe 32 is ventilated, the dust contaminated on each cutter can be sucked into the inner cavity of the material pressing dust suction part 31 through each first dust suction hole 312, and then the dust in the inner cavity of the material pressing dust suction part 31 is sucked out through the first dust suction pipe 32, so as to effectively suck the dust contaminated at the cutting edge when each cutter cuts, thereby ensuring that the pole piece dust is left to reach the standard. It should be noted that, in the present embodiment, the first dust suction holes 312 in each row are arranged in a line-shaped gap, so as to better suck the dust.
In this embodiment, as shown in fig. 1 and 4, the dust removing assembly 3 further includes a second dust suction device 33 and a dust removing device 34, wherein the second dust suction device 33 is disposed on the corresponding mounting member at a side close to the second opening (not shown) for sucking the dust removed by the dust removing device 34. The dust removing device 34 is arranged on the corresponding second dust collecting device 33 at one side close to the pole piece and is positioned below the corresponding cutter for removing dust on the pole piece.
In the present embodiment, the second dust suction device 33 includes a dust suction plate 331, a second dust suction pipe 332 and a connection block 333, wherein the dust suction plate 331 is connected to a corresponding mounting member through the connection block 333 to move along with a corresponding tool, the second dust suction pipe 332 is connected to one side of the dust suction plate 331, and the dust removing device 34 is connected to the opposite side of the dust suction plate 331 from the second dust suction pipe 332, so that it is ensured that the dust removing device 34 can effectively approach the pole piece to brush off the dust thereon.
More specifically, the dust removing device 34 is a brush plate, wherein the side of the brush plate close to the cutter is provided with a second dust collecting hole 341 in the shape of an elongated bar, although in practice, the dust removing device 34 may also adopt other suitable structures. In addition, the dust absorption plate 331 is designed to be hollow, and the second dust absorption pipe 332 is communicated with the inner cavity of the dust absorption plate 331 from the middle part, so that after the second dust absorption pipe 332 is ventilated, dust on the pole piece can be absorbed into the second dust absorption hole 341, then the dust is absorbed into the inner cavity of the dust absorption plate 331 from the second dust absorption hole 341, and then the dust is absorbed from the second dust absorption pipe 332, so that the dust on the pole piece can be effectively absorbed, and the dust left on the pole piece is further guaranteed to reach the standard.
In some embodiments, as shown in fig. 1 and 3, the positioning assembly 2 further includes a second sensing assembly 22, the second sensing assembly 22 includes a mounting seat 221, a second bracket 222 and a second sensor 223, and the mounting seat 221 is located on the outer side of the main frame 11. Specifically, in this embodiment, the second bracket 222 is slidably connected to the mounting base 221 along a direction perpendicular to the cutting direction 200 and is located below the main frame 11, wherein the second sensing assembly 22 further includes a second linear guide 224, the second linear guide 224 is mounted at the bottom of the mounting base 221 along the direction perpendicular to the cutting direction 200, the second bracket 222 is slidably connected to the second linear guide 224 through a second slider (not shown), and the second bracket 222 is located on a side away from the avoiding hole 114 of the main frame 11 and is located below the dust-collecting plate 331.
As further shown in fig. 3, the second sensor 223 is disposed on the second bracket 222, specifically, in the present embodiment, the second bracket 222 is a Z-shaped structure, wherein one end of the second bracket 222 is slidably connected to the second linear guide 224 through a second slider at the avoiding position 23, and the other end is mounted with the second sensor 223 at the avoiding position 23. Like the first bracket 212, the second bracket 222 with such a structure can sufficiently reduce the occupied space of the second sensor 223 on the premise of ensuring the strength of the second sensing assembly 22, thereby further ensuring the compactness of the overall structure.
It should be noted that the second sensor 223 is mainly used for detecting the position of the pole piece and providing the position deviation information of the pole piece to the deviation rectifying device, wherein the deviation rectifying device can automatically correct the position of the pole piece according to the received position deviation information, thereby further ensuring the quality of the cut surface of the pole piece. It should be particularly emphasized that the deviation correcting device can be a component of the battery pole piece cutting and dust removing device 100, and can also be a component in the whole equipment.
Based on the above battery pole piece cutting and dust removing device 100, an embodiment of the present invention further provides a battery winder, wherein the battery winder includes the above battery pole piece cutting and dust removing device 100.
Compared with the prior art, the battery winder at least has the following beneficial effects: according to the battery winding machine, the battery pole piece cutting and dust removing device 100 is adopted, so that the pole piece can be automatically cut, burrs on the cut surface of the pole piece are ensured to meet quality requirements, the fixed-length cutting of the pole piece is realized, and therefore, in the lamination process, the positive pole piece and the negative pole piece can be accurately aligned, the quality of a battery is improved and the yield is improved during mass production.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
Claims (10)
1. A battery pole piece cutting and dust removing device is characterized by comprising a cutting assembly, a positioning assembly and a dust removing assembly, wherein the positioning assembly and the dust removing assembly are arranged on the cutting assembly; the cutting assembly comprises a main frame body, and a first cutting assembly and a second cutting assembly which are arranged on the main frame body;
the main frame body is enclosed to form a working cavity;
the first cutting assembly comprises a first driving device, a first mounting piece and a first cutter, the first mounting piece is arranged in the working cavity and driven by the first driving device, the first cutter is arranged on the first mounting piece, and the first cutter is used for cutting the pole piece;
the second cutting assembly comprises a second driving device, a second mounting piece which is arranged in the working cavity and driven by the second driving device, and a second cutter which is arranged on the second mounting piece, wherein the second cutter is used for cutting the pole piece from two sides of the pole piece simultaneously and respectively with the first cutter;
the positioning assembly comprises a first sensing assembly, the first sensing assembly is arranged on the main frame body and is used for detecting a positioning mark on the pole piece and providing fixed-length cutting position information of the pole piece to the first driving device and/or the second driving device;
the dust removal assembly comprises a material pressing dust collection piece and a first dust collection device, and the material pressing dust collection piece is arranged in the working cavity and is positioned between the first installation piece and the second installation piece; the first dust suction device is arranged on the material pressing and dust sucking part and used for sucking dust on the cutters.
2. The battery pole piece cutting and dust removing device of claim 1, wherein the cutting assembly further comprises a linear bearing and a guide shaft, the linear bearing is arranged on the main frame body along the cutting direction, the guide shaft is inserted into the linear bearing, and one end of the guide shaft is located in the working cavity and is arranged on the corresponding mounting piece.
3. The battery pole piece cutting and dust removing device of claim 1, wherein the cutting assembly further comprises a support column and an elastic member, the support column is arranged on the material pressing dust suction member in the cutting direction and is movably inserted into one of the mounting members; the elastic piece is sleeved on the supporting column, and the free end of the elastic piece extends out of the material pressing and dust collecting piece, so that the pole piece can be pressed between the material pressing and dust collecting piece and another mounting piece before the first cutter and the second cutter are in butt joint and cut.
4. The battery pole piece cutting and dedusting device as claimed in claim 1, wherein the cutting assembly further comprises a limiting member movably inserted into the main frame, one end of the limiting member is located in the working chamber and is disposed on the first mounting member or the second mounting member, and the other end of the limiting member is limited outside the main frame to fix the moving distance of the corresponding mounting member.
5. The battery pole piece cutting and dust removing device according to any one of claims 1 to 4, wherein the output shafts of the first driving device and the second driving device are respectively in point contact with the first mounting part and the second mounting part in the working cavity, each output shaft is perpendicular to the corresponding mounting part, and the contact end of each output shaft is in a mushroom head shape.
6. The battery pole piece cutting and dedusting device as claimed in claim 5, wherein the cutting assembly further comprises a clamping block, the clamping block is arranged on the corresponding mounting piece at a position corresponding to the output shaft, and a movable cavity communicated with the working cavity is formed on each clamping block; each output shaft is movably inserted in the corresponding clamping block, and the contact end of each output shaft can move in the corresponding movable cavity in a telescopic mode and is limited in the movable cavity after being retracted.
7. The battery pole piece cutting and dust removing device according to any one of claims 1 to 4, wherein the main frame body is provided with a first opening communicated with the working cavity, and the first opening is an inlet of the pole piece into the working cavity; the first induction assembly comprises a first linear slide rail, a first support and a first sensor, and the first linear slide rail is arranged on the main frame body at one side close to the first opening and is parallel to the corresponding mounting part; the first support is Z-shaped, one end of the first support is connected with the first linear sliding rail in an avoiding mode, and the other end of the first support is provided with the first sensor in an avoiding mode.
8. The battery pole piece cutting and dust removing device according to any one of claims 1 to 4, wherein the material pressing and dust collecting member is a hollow cavity structure with an opening at one end, and an inclined surface structure is arranged at a corner of the material pressing and dust collecting member close to the cutting position of the cutter, and a long strip-shaped dust collecting hole communicated with an inner cavity of the material pressing and dust collecting member is formed in the inclined surface structure; the first dust suction device comprises a first dust suction pipe, and the first dust suction pipe is inserted into the inner cavity of the material pressing dust suction piece;
the main frame body is provided with a second opening communicated with the working cavity, and the second opening is an outlet through which the pole piece moves out of the working cavity; the dust removal assembly further comprises a second dust suction device and a dust removal device, wherein the second dust suction device is arranged on the corresponding mounting part at one side close to the second opening and is used for sucking dust removed by the dust removal device; and the dust removing device is arranged on the corresponding second dust collecting device at one side close to the pole piece and is positioned below the corresponding cutter for removing dust on the pole piece.
9. The battery pole piece cutting and dust removing device according to any one of claims 1 to 4, wherein the positioning assembly further comprises a second sensing assembly, the second sensing assembly comprises a mounting seat, a second bracket and a second sensor, and the mounting seat is positioned on the outer side of the main frame body; the second support is connected to the mounting seat in a sliding mode along the direction perpendicular to the cutting direction and is located below the main frame body; the second sensor is arranged on the second support and used for detecting the position of the pole piece and providing the position deviation information of the pole piece for the deviation correcting device.
10. A battery winder, characterized in that it comprises a battery pole piece cutting and dust removing device according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158428.8A CN111002377B (en) | 2019-11-22 | 2019-11-22 | Battery pole piece cutting and dust removing device and battery winder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911158428.8A CN111002377B (en) | 2019-11-22 | 2019-11-22 | Battery pole piece cutting and dust removing device and battery winder |
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| CN111002377A true CN111002377A (en) | 2020-04-14 |
| CN111002377B CN111002377B (en) | 2022-06-07 |
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|---|---|
| CN111002377B (en) | 2022-06-07 |
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