CN108493489B - Correcting mechanism before winding and electric core winding machine - Google Patents
Correcting mechanism before winding and electric core winding machine Download PDFInfo
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- CN108493489B CN108493489B CN201810489080.XA CN201810489080A CN108493489B CN 108493489 B CN108493489 B CN 108493489B CN 201810489080 A CN201810489080 A CN 201810489080A CN 108493489 B CN108493489 B CN 108493489B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 64
- 238000004804 winding Methods 0.000 title claims abstract description 52
- 238000006073 displacement reaction Methods 0.000 claims abstract description 51
- 239000013307 optical fiber Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005286 illumination Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- -1 line during feeding Natural products 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The invention discloses a correcting mechanism before winding and a battery core winding machine, wherein the correcting mechanism before winding comprises an installation bottom plate, a movable plate, a roller assembly, at least one pair of optical fiber displacement sensors and a correcting device, wherein the roller assembly is movably arranged on the installation bottom plate through the movable plate and is used for compressing a strip-shaped blank to be conveyed along a feeding path; the deviation correcting device is arranged on the mounting bottom plate and used for acquiring the deviation detected by at least one pair of optical fiber displacement sensors and moving the compensation distance in real time according to the deviation so as to ensure that the alignment of the coiled strip blank is tidy. The technical scheme of the invention can improve the precision of the battery core winding machine.
Description
Technical Field
The invention relates to the technical field of battery cell manufacturing, in particular to a correction mechanism before winding and a battery cell winding machine.
Background
In the process of producing the battery core, the winding machine is used for manufacturing the strip-shaped blank into finished products or semi-finished products such as a capacitor and the battery core, and the correction mechanism before winding is arranged on the battery core winding machine and used for conveying the strip-shaped blank to a winding procedure.
The pre-roll deviation correcting mechanism is generally provided with a roller assembly for pressing the strip-shaped blank, and the blank is conveyed to the next station after being flattened by rotating the roller assembly. In this process, the blank is liable to deviate from the set standard value in the subsequent winding process due to the uneven edge line or serpentine edge line during feeding, resulting in defective products, and therefore, the accuracy of the cell winder is poor.
Disclosure of Invention
The invention mainly aims to provide a correction mechanism before winding and a battery cell winding machine, and aims to improve the precision of the battery cell winding machine.
In order to achieve the above purpose, the pre-rolling deviation correcting mechanism provided by the invention comprises a mounting bottom plate, a movable plate, a roller assembly, at least one pair of optical fiber displacement sensors and a deviation correcting device, wherein the roller assembly is movably arranged on the mounting bottom plate through the movable plate, the roller assembly is used for compacting a strip-shaped blank to be conveyed along a feeding path, the at least one pair of optical fiber displacement sensors are arranged on the feeding path and used for detecting the displacement of the side edges of the strip-shaped blank, and the deviation correcting device is arranged on the mounting bottom plate and used for acquiring the deviation detected by the at least one pair of optical fiber displacement sensors and moving in real time according to the deviation to compensate the distance so as to ensure that the alignment of the strip-shaped blank after winding is tidy.
Preferably, when the offset exceeds a preset value, the deviation rectifying device adjusts a first relative position distance between the movable plate and the bottom plate so as to compensate the offset.
Preferably, at least one pair of the optical fiber displacement sensors is a plurality of pairs, wherein at least two pairs of the optical fiber displacement sensors are uniformly arranged along the feeding path.
Preferably, at least one pair of optical fiber displacement sensors are multiple pairs, wherein at least two pairs of optical fiber displacement sensors are symmetrically distributed on two sides of the roller assembly.
Preferably, the deviation correcting device comprises a rack, a servo motor and a gear, wherein the rack is parallel to the center direction of the wheel shaft of the roller assembly and is arranged on the mounting bottom plate, the servo motor is arranged on the movable plate, and the gear is arranged on the output shaft of the servo motor and is matched with the rack.
Preferably, the correcting mechanism before winding further comprises a mounting bracket, a sliding block and a positioning device, wherein the mounting bracket is fixedly connected with the sliding block, the sliding block is arranged on the movable plate in a sliding manner, at least one pair of optical fiber displacement sensors are arranged on the mounting bracket, and the positioning device is used for adjusting the second relative position distance of the sliding block along the center direction of the wheel shaft of the roller assembly.
Preferably, a first guide rail is arranged on the movable plate, a guide part is arranged on the sliding block, the sliding block is connected to the first guide rail in a sliding manner through the guide part, the movable plate further comprises a first mounting piece, a second mounting piece and two guide rods which are arranged in parallel, the two guide rods are fixed on the movable plate through the first mounting piece, the second mounting piece is fixed on the two guide rods, so that the two guide rods are formed between the first mounting piece and the second mounting piece, and the guide part of the sliding block is two through holes corresponding to the two guide rods.
Preferably, the positioning device comprises an elastic piece and a micrometer screw, the micrometer screw penetrates through the second mounting piece and faces the sliding block, and the sliding block is connected with the first mounting piece through the elastic piece, so that the end face of the sliding block abuts against the end portion of the micrometer screw.
Preferably, the roller assembly comprises a driving roller set, a driven roller, a driving cylinder and a moving block, wherein a driven roller installation part is arranged on the moving block, the driven roller is pivoted on the moving block through the driven roller installation part, and the driving cylinder drives the moving block to apply pressure along the pushing-out direction so as to press the driven roller to the driving roller set.
Preferably, the driving roller set comprises two driving roller mounting blocks, a second motor and a driving roller, the two driving roller mounting blocks are mounted on the movable plate at opposite intervals, the driving roller is provided with two opposite pivots, the driving roller is mounted between the two driving roller mounting blocks through the two pivots, and the second motor is used for driving the driving roller to rotate.
Preferably, when the moving block is pressed in the pushing-out direction, the center of the wheel shaft of the driving roller is opposite to the center of the wheel shaft of the driven roller.
Preferably, the correcting mechanism before rolling further comprises an induction piece and at least one inductor, wherein the induction piece is arranged on the movable plate, the at least one inductor is arranged on the mounting bottom plate and forms a third relative position distance with the induction piece in the center direction of the wheel shaft of the roller assembly, and the induction piece is electrically connected with the servo motor and used for limiting the movable plate to move in the third relative position distance.
The invention also provides a battery core winding machine, which comprises a frame, a winding mechanism and a cutting mechanism which are arranged on the frame, and the correcting mechanism before winding, wherein the correcting mechanism before winding is arranged on the frame through the mounting bottom plate and is used for conveying the strip-shaped blank to the winding process by the winding mechanism, and the cutting mechanism cuts off the strip-shaped blank.
According to the pre-rolling deviation correcting mechanism, at least one pair of optical fiber displacement sensors are arranged on the roller assembly, and the edge shading area of the strip-shaped blank pressed and conveyed by the roller assembly is detected, so that the deviation of the side edge of the strip-shaped blank is detected. The sensor transmits the detected offset to a deviation correcting device arranged on the mounting bottom plate, and the deviation correcting device adjusts the position of the movable plate according to the detected offset, so that the roller assembly clamps the strip-shaped blank to move together and is used for compensating the offset during feeding. When the offset exceeds a preset value, the deviation correcting device adjusts a first relative position distance between the movable plate and the mounting bottom plate, and the first relative position distance is used for compensating the offset of the strip-shaped blank. The correction mechanism before rolling can obtain compensation in real time by adjusting the movable plate when the strip-shaped blank is conveyed, so that the feeding can be conveyed along the feeding path all the time without exceeding a preset value, and the precision of the battery cell winding machine is improved. And at least one pair of optical fiber displacement sensors has higher resolution precision for detecting the edge deviation of the strip-shaped blank, so that the precision of the battery cell winding machine can be further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a first side of a pre-roll deviation-correcting mechanism according to the present invention;
FIG. 2 is a schematic diagram of the arrangement of the optical fiber displacement sensor of the pre-winding deviation correcting mechanism in the feeding path;
FIG. 3 is a schematic diagram of a second side of the pre-roll deviation-correcting mechanism of the present invention;
FIG. 4 is a schematic diagram of a third side of the pre-roll deviation-correcting mechanism according to the present invention;
Fig. 5 is a schematic structural view of the cell winder of the present invention.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Mounting base plate | 42 | Gear wheel |
| 20 | Movable plate | 43 | Servo motor |
| 30 | Roller assembly | 71 | Optical fiber displacement sensor |
| 31 | Driving roller set | 72 | Mounting bracket |
| 311 | Driving roller mounting block | 73 | Sliding block |
| 312 | Second motor | 731 | Guide part |
| 313 | Driving roller | ||
| 3131 | Pivot shaft | 741 | Micrometer screw |
| 321 | Driven roller | 81 | Induction sheet |
| 322 | Driving cylinder | 82 | Inductor |
| 323 | Moving block | 91 | Rack |
| 3231 | Driven roller mounting part | 92 | Winding mechanism |
| 40 | Deviation correcting device | 93 | Cutting mechanism |
| 41 | Rack bar | 94 | Correcting mechanism before rolling |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
In the embodiment of the invention, referring to fig. 1 and 2, the pre-winding deviation correcting mechanism is installed on a winding machine through a mounting base plate 10, a movable plate 20 is movably arranged on the mounting base plate 10, and a roller assembly 30 is movably arranged on the mounting base plate 10 through the movable plate 20, so that the position of the roller assembly 30 can be adjusted relative to the mounting base plate 10. At the same time, the roller assembly 30 is used to pinch the strip along the feed path V and transport the strip to the winding station. During the conveyance, by providing at least one pair of fiber displacement sensors 71 on the roller assembly 30, the edge shading area of the belt-like blank pressed and conveyed by the roller assembly 30 is detected to detect the offset Q of the side edge of the belt-like blank.
Specifically, referring to fig. 1 and 2, a pair of optical fiber displacement sensors 71 detect a change in the amount of displacement by detecting a change in the optical characteristics of the laser beam, which can achieve high detection accuracy. Meanwhile, the pair of optical fiber displacement sensors 71 described herein may be either reflective optical fiber displacement sensors provided in pairs or correlation optical fiber displacement sensors provided in pairs. The grating of the fiber displacement sensor 71 is detected by emitting a flat beam, or by emitting a spot for detection. The spot shape of the light beam detected by the emitted light spot may be circular, elliptical, rectangular, or other irregular shape, and the shape of the light spot is not particularly limited, and the diameter and resolution of the light spot are not particularly limited. The at least one pair of fiber displacement sensors 71 may be disposed on the feeding path V in various manners, such as being disposed directly on the roller assembly 30, but of course, the at least one pair of fiber displacement sensors 71 may also be disposed on the roller assembly 30 by a mounting member, so that the at least one pair of fiber displacement sensors 71 may be disposed in the pre-roll deviation correcting mechanism at an intensive position along the feeding path V. At least one pair of optical fiber displacement sensors 71 transmits the detected offset Q to a deviation rectifying device 40 provided on the mounting base plate 10, and the deviation rectifying device 40 adjusts the position of the movable plate 20 according to the detected offset Q so that the roller assembly 30 clamps the strip-shaped blank to move together for compensating the offset Q at the time of feeding. Once the offset Q is generated, the distance can be compensated by the deviation correcting device 40 in real time, so that the alignment of the strip blank after winding is tidy. In this embodiment, when the offset Q exceeds the preset value, the deviation rectifying device 40 adjusts a first relative position distance between the movable plate 20 and the mounting base plate 10, and the first relative position distance is used to compensate the offset Q of the strip blank. The correction mechanism before rolling can obtain compensation in real time by adjusting the movable plate 20 when the strip-shaped blank is conveyed, so that the feeding can be conveyed along the feeding path V all the time without exceeding the preset value, and the precision of the cell winding machine is improved. Further, at least one pair of the fiber displacement sensors 71 has high resolution accuracy for detecting the edge deviation of the strip-like material, and the accuracy of the cell winder can be further improved.
Referring to fig. 1, in the present embodiment, at least one pair of fiber displacement sensors 71 is mounted on the roller assembly 30, and the fiber displacement sensors 71 may be one pair, two pairs or more pairs, and the at least one pair of fiber displacement sensors 71 generates a feedback signal to the deviation correcting device 40 according to the deviation Q of the edge. The deviation rectifying device 40 can rectify the deviation by driving the movable plate to move through a servo motor with a deviation encoder, and of course, the deviation rectifying device can rectify the deviation by driving the movable plate to move through a stepping motor controlled by a controller. There may be various ways to drive the movable plate to move, for example: the motor can be turned into linear motion by arranging a transmission mechanism, and the transmission mechanism can be a screw nut, a gear rack and other structures, so that a person skilled in the art can obtain a corresponding technical scheme through the embodiment and the attached drawings, and the description is omitted here. Such as: the gear or rack is driven by the servo motor 43 to move the movable plate 20 on the mounting base plate 10, thereby driving the roller assembly 30 to clamp the strip-shaped blank for movement.
With continued reference to fig. 1, when the pre-roll deviation correcting mechanism is in operation, the strip-shaped blank is laid on the wheel shaft of the roller assembly 30, and the roller assembly 30 can clamp the strip-shaped blank. The roller assembly 30 may have a driving wheel or may be driven wheels, and the function of the roller assembly is to smoothly transfer the strip-shaped blank to the next station through the roller assembly 30, so that the strip-shaped blank is prevented from being greatly offset by Q, and the accuracy of the cell winder is improved. When the offset Q of the side edge of the strip-shaped blank does not coincide with the set standard, at least one pair of optical fiber displacement sensors 71 detects the offset Q of the side edge of the strip-shaped blank and feeds back the data of the offset Q to the servo motor 43, the servo motor 43 performs forward and reverse rotation according to the offset Q, so as to determine the sliding direction of the movable plate 20 on the mounting base plate 10, and the movable plate 20 is driven to move a first relative position distance corresponding to the offset Q so as to compensate the offset Q of the strip-shaped blank, so that feeding is more stable, and the accuracy of the cell winder is improved.
Preferably, when the correcting mechanism is fed before rolling, when the strip blank is uneven or the edge is serpentine, the dimensional error deviates from the preset value to generate the offset Q, the correcting device 40 can adjust the first relative position distance of the movable plate 20 on the mounting base plate 10 in real time so as to compensate the offset Q, thereby avoiding generating defects in the subsequent process and improving the operability.
Preferably, as shown with reference to fig. 1 and 2, at least one pair of fiber displacement sensors 71 is a plurality of pairs, and at least two pairs of fiber displacement sensors are uniformly arranged along the feeding path V. The advantage of this arrangement is that the accuracy of the measurement along the feed path V can be improved and measurement errors reduced. Preferably, at least one pair of the fiber displacement sensors 71 is a plurality of pairs, wherein at least two pairs of the fiber displacement sensors 71 are symmetrically distributed on two sides of the roller assembly 30, so that the detected value can be more accurate, and the measurement accuracy is further improved. Preferably, the optical fiber displacement sensors 71 are all fiber grating displacement sensors, so that the measurement accuracy can be further improved.
Referring to fig. 1, preferably, the deviation rectifying device 40 includes a rack 41, a servo motor 43 and a gear 42, wherein the rack 41 is disposed on the mounting base plate 10 parallel to the wheel axle center direction of the roller assembly 30, the servo motor 43 is disposed on the movable plate 20, the gear 42 is mounted on the output shaft of the servo motor 43, the gear 42 is adapted to the rack 41, and when the servo motor 43 rotates, the servo motor 43 drives the gear 42 to move along the length direction of the rack 41, thereby driving the movable plate 20 to translate a first relative position distance on the mounting base plate 10.
With continued reference to fig. 1, the roller assembly 30 of the pre-roll deviation correcting mechanism is preferably capable of sliding relative to the mounting base plate 10 under the driving of the servo motor 43, the movable plate 20 is slidably disposed on the mounting base plate 10, and various sliding manners are possible, such as a guide rail disposed on the movable plate 20 and a guide groove disposed on the mounting base plate 10; it is also possible to provide a guide groove on the movable plate 20, provide a guide rail on the mounting base plate 10, slide the movable plate 20 and the mounting base plate 10 by a groove rail fitting manner, or move the movable plate 20 on the mounting base plate 10 by means of a ball or a roller shaft. The rack 41 is provided in the longitudinal direction so as to coincide with the direction of the wheel center of the roller assembly 30, so that the direction of the sliding adjustment of the mounting baseplate 10 coincides with the direction of the wheel center of the roller assembly 30. At this time, when the movable plate 20 translates the second relative position distance on the mounting base plate 10, the wheel shaft center direction of the roller assembly 30 translates the second relative position distance accordingly.
With continued reference to fig. 1, the movable plate 20 is preferably driven by the servo motor 43 in the following manner: the output shaft of the servo motor 43 is provided with a gear 42, and the gear 42 is engaged with the rack 41. The gear 42 rolls along the length direction of the rack 41 by being driven by the servo motor 43. When the rack 41 is fixed on the mounting base plate 10, the gear 42 drives the servo motor 43, and the movable plate 20 to translate. It should be specifically noted that there may be various driving modes of the movable plate 20 by the servo motor 43, for example, a gear 42 is provided on an output shaft of the servo motor 43, and the gear 42 is engaged with the rack 41, so that the gear 42 rolls along a length direction of the rack 41 when the servo motor 43 is driven. When the servo motor 43 is fixed on the mounting base plate 10, the rack drives the movable plate to translate. Those skilled in the art can obtain corresponding solutions through the embodiments of the present invention and the accompanying drawings, and detailed descriptions are omitted herein.
Referring to fig. 1 and 2, preferably, in order to further improve the accuracy of the cell winding machine, the pre-winding deviation correcting mechanism further includes a mounting bracket 72, a sliding block 73 and a positioning device, where the mounting bracket 72 is fixedly connected with the sliding block 73, so that the mounting bracket 72 can be linked with the sliding block 73, the sliding block 73 is slidably disposed on the movable plate 20, and various sliding manners can be provided, such as a guide rail is disposed on the movable plate 20, and a guide groove is disposed on the sliding block 73; it is also possible to provide a guide groove on the movable plate 20, provide a guide rail on the slider 73, slide the movable plate 20 and the slider 73 by a grooved rail fitting manner, or move the slider 73 on the movable plate 20 by means of a ball or a roller shaft. At least one pair of fiber displacement sensors 71 are mounted on the mounting bracket 72 such that the position of the at least one pair of fiber displacement sensors 71 relative to the center of the axle of the roller assembly 30 is adjustable, the positioning means for adjusting the second relative position distance of the slider 73 in the center of the axle of the roller assembly 30, the positioning means may be a positioning screw, a positioning pin or other positioning means for adjusting the second relative position distance, and the at least one pair of fiber displacement sensors 71 are positioned in the center of the axle of the roller assembly 30 to determine the positional reference of the at least one pair of fiber displacement sensors 71 after each replacement of the strip, thereby reducing the error dispersion of the replacement of the strip, and improving the accuracy of the cell winder.
With continued reference to fig. 1 and 2, it is preferable that the movable plate 20 is provided with the first guide rail 21 for the convenience of production, the slider 73 is provided with the guide portion 731, and the slider 73 is slidably coupled to the first guide rail 21 through the guide portion 731. The first guide rail 21 may be provided in various manners, such as a guide rib, a guide groove, a guide rod, etc., and the slider 73 is provided with a clamping groove, a guide rib, a through hole, etc., and the slider 73 slides on the movable plate 20 in a manner of being engaged with the guide rail or the guide rod extending into the through hole, etc. This facilitates the installation of the slider 73 and the production.
With continued reference to fig. 1 and 2, preferably, for further convenience of production, the movable plate 20 further includes a first mounting member 201, a second mounting member 202, and two guide rods 203 disposed in parallel, the two guide rods 203 being fixed to the movable plate 20 by the first mounting member 201, the second mounting member 202 being fixed to the two guide rods 203 such that the two guide rods 203 form a first guide rail 21 between the first mounting member 201 and the second mounting member 202, and the guide portions 731 of the slider 73 are two through holes disposed corresponding to the two guide rods 21. The guide bar 21 may have a cylindrical shape, a prismatic shape, or another cylindrical shape, and is preferably cylindrical in order to smooth sliding. The two guide rods are disposed between the two mounting members 22, and the guide portion 731 is two through holes corresponding to the two guide rods 21, so that the sliding block 73 can slide in the axial direction of the guide rods 21, and the sliding block 73 can be limited in the radial direction of the guide rods 21. Since the through holes provided in the slider 73 are easy to process, production and manufacture are facilitated.
With continued reference to fig. 1 and 2, preferably, in order to further improve the accuracy of the cell winder, the positioning device includes an elastic member (not shown) and a micrometer screw 741, where the micrometer screw 741 penetrates through the second mounting member 202 and is disposed towards the slider 73, one end of the elastic member is connected to the slider 73, the other end is connected to the first mounting member 201, and the elastic member may be a spring, a torsion spring or an elastic sheet, so that an end surface of the slider 73 abuts against an end portion of the micrometer screw 741, so as to position the slider 73 on the first guide rail 21. The elastic piece is a pressure spring, the pressure spring is sleeved on the guide rod 21 and is abutted to one side of the sliding block 73, the sliding block 73 is pushed to move back and forth on the other side through the micrometer screw 741, and accordingly the mounting bracket 72 is driven to move left and right to adjust the detection reference of at least one pair of optical fiber displacement sensors 71, error scattering is reduced, and the accuracy of the electric core winding machine is improved.
Referring to fig. 2, at least one pair of fiber displacement sensors 71 is preferably a pair of fiber displacement sensors, which are opposite, one for illuminating and the other for receiving light, and can detect a light shielding area of a side edge of the strip-shaped blank. The illumination area of the illumination sensor is partially shielded by the strip-shaped blank, the illumination area of the shielded illumination area can be set as a standard value in a program, and when the shielded illumination area is not overlapped with the set standard value, the roller assembly 30 clamps the strip-shaped blank to move back and forth relative to the mounting base plate 10, so that the uniformity of the shielded illumination area is ensured, the alignment of the side edges of the strip-shaped blank is realized, and the accuracy of the cell winding machine can be further improved.
Referring to fig. 1 and 3, preferably, in order to improve the conveying capability of the cell winder, the roller assembly 30 includes a driving roller group 31, a driven roller 321, a driving cylinder 322, and a moving block 323, and the driving roller group 31 may be powered to convey the strip-shaped blanks. The moving block 323 is provided with a driven roller mounting portion 3231, the driven roller 321 is pivoted on the moving block 323 through the driven roller mounting portion 3231, the driving cylinder 322 drives the moving block 323 to press in the pushing-out direction, so that the driven roller 321 is pressed against the driving roller set 31, and the roller set 30 can smoothly clamp or unclamp the strip-shaped blank.
Referring to fig. 1 and 3, it is preferable that the driving roller group 31 includes two driving roller mounting blocks 311, a second motor 312 and a driving roller 313 in view of convenience of installation, the two driving roller mounting blocks 311 are relatively mounted on the movable plate 20 at intervals, the driving roller 313 is provided with two opposite pivots 3131, the driving roller 313 is mounted between the two driving roller mounting blocks 311 through the two pivots 3131, the second motor 312 is used to drive the driving roller 313 to rotate, an output shaft of the second motor 312 may be connected to one of the pivots 3131 through a coupling, or may be connected to one of the pivots 3131 through a transmission mechanism provided to drive the driving roller 313 to rotate. Preferably, the center of the driving roller 313 is opposite to the center of the driven roller 321 when the moving block 323 is pressed in the pushing direction, so that the pressing force of the roller assembly 30 to the strip-shaped blank can be increased to prevent the deviation.
Preferably, referring to fig. 3, in order to improve the reliability of the cell winder, the pre-winding deviation correcting mechanism further includes a sensing piece 81, and at least one sensor 82, the sensing piece 81 being disposed on the movable plate 20, the at least one sensor 82 being disposed on the mounting plate 10 and forming a fourth relative position distance with the sensing piece 81 in the direction of the center of the wheel shaft of the roller assembly 30, the sensing piece 81 being electrically connected to the servo motor 43, the servo motor 43 being stopped when the sensing piece 81 senses the sensor 82, for limiting the movable plate 20 from moving within the fourth relative position distance to prevent the movable plate 20 from exceeding the stroke when moving on the mounting plate 10. When there are two sensors 82, the sensing piece 81 is disposed between the two sensors 82, for limiting the travel of the sensing piece 81 between the two sensors 82. When the number of the sensors 82 is three, one sensor is located between the other two sensors, the servo motor 43 is driven by the movable plate 20 to move after stopping, so that the sensing piece 81 moves to the middle sensor, and the purpose of this arrangement is to improve the reliability of the cell winder by limiting the travel of the movable plate 20.
The invention also provides a battery core winder, referring to fig. 4, the battery core winder comprises a frame 91, a winding mechanism 92 installed on the frame 91, a cutting mechanism 93, and the foregoing pre-winding deviation correcting mechanism 94, wherein the pre-winding deviation correcting mechanism 94 is installed on the frame 91 of the winder through a mounting base plate 10, and the pre-winding deviation correcting mechanism 94 can be adjusted according to the uneven strip blank or the serpentine edge when feeding, so that the pre-winding deviation correcting mechanism adjusts and compensates when the feeding edge error deviates from a preset value, thereby improving the accuracy of the battery core winder. The winding mechanism 92 winds the strip-shaped material, and the cutting mechanism 93 cuts the strip-shaped material to form the cells.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes, direct/intermittent applications, or other related technical fields that are made by the present specification and drawings are included in the scope of the present invention.
Claims (10)
1. The utility model provides a correcting mechanism before rolling up, includes mounting plate, fly leaf and roller subassembly, the roller subassembly passes through the fly leaf activity sets up on the mounting plate, roller subassembly is used for compressing tightly banded blank and carries along the pay-off route, its characterized in that, correcting mechanism before rolling up still includes:
at least one pair of fiber displacement sensors disposed on the feed path for detecting an offset of the side edge of the strip blank;
The deviation correcting device is arranged on the mounting bottom plate and used for acquiring the deviation detected by at least one pair of optical fiber displacement sensors and ensuring that the alignment is tidy after the strip-shaped blank is wound according to the deviation in real time motion compensation distance; when the offset exceeds a preset value, the deviation correcting device adjusts a first relative position distance of the movable plate on the mounting bottom plate so that the roller assembly clamps the strip-shaped blank to move together to compensate the offset;
The correcting mechanism before rolling further comprises a mounting bracket, a sliding block and a positioning device, wherein the mounting bracket is fixedly connected with the sliding block, the sliding block is arranged on the movable plate in a sliding manner, at least one pair of optical fiber displacement sensors are arranged on the mounting bracket, and the positioning device is used for adjusting a second relative position distance of the sliding block along the center direction of the wheel shaft of the roller assembly;
the movable plate is provided with a first guide rail, the slide block is provided with a guide part, the slide block is connected to the first guide rail in a sliding manner through the guide part, the movable plate further comprises a first mounting part, a second mounting part and two guide rods which are arranged in parallel, the two guide rods are fixed on the movable plate through the first mounting part, the second mounting part is fixed on the two guide rods, so that the two guide rods are in the first guide rail and the second guide rail are formed between the first mounting part and the second mounting part, and the guide part of the slide block is two through holes corresponding to the two guide rods.
2. The pre-roll deviation-correcting mechanism according to claim 1, wherein at least one pair of said optical fiber displacement sensors is a plurality of pairs, wherein at least two pairs of said optical fiber displacement sensors are uniformly arranged along said feed path.
3. The pre-roll deviation-correcting mechanism according to claim 1, wherein at least one pair of the optical fiber displacement sensors is a plurality of pairs, wherein at least two pairs of the optical fiber displacement sensors are symmetrically distributed on both sides of the roller assembly.
4. The pre-roll deviation correcting mechanism according to claim 1, wherein the deviation correcting device comprises a rack, a servo motor and a gear, the rack is arranged on the mounting base plate in parallel to the wheel shaft center direction of the roller assembly, the servo motor is arranged on the movable plate, and the gear is arranged on an output shaft of the servo motor and is matched with the rack.
5. The pre-roll deviation correcting mechanism according to claim 1, wherein the positioning device comprises an elastic member and a micrometer screw, the micrometer screw penetrates through the second mounting member and is arranged towards the sliding block, and the sliding block is connected with the first mounting member through the elastic member so that the end face of the sliding block abuts against the end portion of the micrometer screw.
6. The pre-roll deviation correcting mechanism according to claim 1, wherein the roller assembly includes a driving roller group, a driven roller, a driving cylinder, and a moving block, the moving block is provided with a driven roller mounting portion, the driven roller is pivotally connected to the moving block through the driven roller mounting portion, and the driving cylinder drives the moving block to press in a pushing-out direction so that the driven roller presses against the driving roller group.
7. The pre-roll deviation correcting mechanism according to claim 6, wherein the drive roller group comprises two drive roller mounting blocks, a second motor and a drive roller, the two drive roller mounting blocks are mounted on the movable plate at opposite intervals, the drive roller is provided with two opposite pivots, the drive roller is mounted between the two drive roller mounting blocks through the two pivots, and the second motor is used for driving the drive roller to rotate.
8. The pre-roll deviation correcting mechanism according to claim 7, wherein the hub center of the driving roller is disposed opposite to the hub center of the driven roller when the moving block is pressed in the pushing-out direction.
9. The pre-roll deviation-correcting mechanism according to claim 4, further comprising an induction piece and at least one sensor, wherein the induction piece is disposed on the movable plate, the at least one sensor is disposed on the mounting base plate and forms a third relative position distance with the induction piece in the direction of the center of the wheel shaft of the roller assembly, and the induction piece is electrically connected with the servo motor to limit the movable plate to move within the third relative position distance.
10. The battery core winder comprises a frame, a winding mechanism and a cutting mechanism, wherein the winding mechanism and the cutting mechanism are arranged on the frame, the battery core winder is characterized by further comprising the pre-winding deviation correcting mechanism according to any one of claims 1 to 9, the pre-winding deviation correcting mechanism is arranged on the frame through the mounting bottom plate and used for conveying the strip-shaped blank to a winding procedure by the winding mechanism, and the cutting mechanism cuts the strip-shaped blank.
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| CN201810489080.XA CN108493489B (en) | 2018-05-21 | 2018-05-21 | Correcting mechanism before winding and electric core winding machine |
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| CN201810489080.XA CN108493489B (en) | 2018-05-21 | 2018-05-21 | Correcting mechanism before winding and electric core winding machine |
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| CN109531684A (en) * | 2019-01-04 | 2019-03-29 | 上海快数机械设备有限公司 | XY automatic cutter |
| CN117326377A (en) * | 2019-05-23 | 2024-01-02 | 无锡先导智能装备股份有限公司 | Pole piece feeding mechanism and control method thereof |
| CN112201838A (en) * | 2020-10-30 | 2021-01-08 | 深圳市诚捷智能装备股份有限公司 | Feeding device, winding machine and deviation rectifying method |
| CN113860045A (en) * | 2021-08-23 | 2021-12-31 | 凯迈(洛阳)机电有限公司 | Automatic deviation rectifying method and device for strip packing material |
| CN114411109A (en) * | 2021-12-21 | 2022-04-29 | 成都中科唯实仪器有限责任公司 | Coating film deviation preventing device of magnetron sputtering winding coating equipment |
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