CN116470157A - Rolling needle device with variable rolling diameter - Google Patents
Rolling needle device with variable rolling diameter Download PDFInfo
- Publication number
- CN116470157A CN116470157A CN202310553398.0A CN202310553398A CN116470157A CN 116470157 A CN116470157 A CN 116470157A CN 202310553398 A CN202310553398 A CN 202310553398A CN 116470157 A CN116470157 A CN 116470157A
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- Prior art keywords
- needle
- winding
- seat
- movable
- fork
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- 238000005096 rolling process Methods 0.000 title claims description 91
- 238000004804 winding Methods 0.000 claims abstract description 201
- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
Abstract
The invention discloses a winding needle device with a variable winding diameter, which comprises a winding needle mechanism, a movable driving mechanism and a rotary driving mechanism, wherein the winding needle mechanism comprises a fixed seat, a winding needle and a winding shaft, the winding needle and the winding shaft are respectively arranged at a first end and a second end of the fixed seat, the winding shaft is respectively connected with the movable driving mechanism and the rotary driving mechanism, the winding needle comprises a fixed winding needle part and a movable winding needle part which are oppositely arranged, and a fixed mounting groove and a movable mounting groove are respectively arranged at one side, close to each other, of the fixed winding needle part and the movable winding needle part; a fixed mounting seat is arranged in the fixed mounting groove, and one end of the fixed mounting seat extends out of the fixed mounting groove and is arranged at the first end of the fixed seat; the movable mounting groove is internally provided with a movable mounting seat and a bottom plate, and one end of the movable mounting seat extends out of the movable mounting groove and is arranged at the first end of the fixed seat. The invention improves the equipment efficiency and the utilization rate.
Description
Technical Field
The invention relates to the technical field of manufacturing of lithium battery cells, in particular to a winding needle device with a variable winding diameter.
Background
At present, the process of winding and forming the battery core of the lithium battery is generally completed by a winding needle device of a winding machine. The winding needle device generally includes a winding needle mechanism, a movement driving mechanism for driving the winding needle mechanism to move forward and backward, and a rotation driving mechanism for driving the winding needle mechanism to rotate. The winding needle mechanism generally comprises a fixed seat, winding shafts and winding needles, wherein the winding shafts and the winding needles are arranged at two ends of the fixed seat, and the winding shafts are respectively connected with the moving driving mechanism and the rotating driving mechanism. When the battery core is actually wound and formed, as the battery core pole piece is usually a whole roll of material, certain errors generally exist in the spacing between the pole lugs of the pole piece, and the situation that the pole lugs are misplaced in the winding process of the battery core is caused. The existing method for correcting the electrode lug dislocation is generally to take down the winding needle of the winding needle mechanism manually after stopping, then paste the teflon film on the winding needle or add a gasket in the winding needle to adjust the winding diameter (namely the winding diameter) of the winding needle, so that the alignment degree of the electrode lug of the electric core can be adjusted when the next electric core is formed by winding, and the purpose of correcting the electrode lug dislocation of the electric core is achieved. However, the method requires manual intervention such as unreeling needles, and is long in time consumption, and seriously affects the equipment efficiency and utilization rate.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the winding needle device with the variable winding diameter, which does not need manual intervention such as unwinding needles and the like, has short time consumption and improves the equipment efficiency and the utilization rate.
The technical scheme adopted for solving the technical problems is as follows:
the winding needle device with the variable winding diameter comprises a winding needle mechanism, a movable driving mechanism and a rotary driving mechanism, wherein the winding needle mechanism comprises a fixed seat, a winding needle and a winding shaft, the winding needle and the winding shaft are respectively arranged at a first end and a second end of the fixed seat, the winding shaft is respectively connected with the movable driving mechanism and the rotary driving mechanism, the winding needle comprises a fixed winding needle piece and a movable winding needle piece which are oppositely arranged, and a fixed mounting groove and a movable mounting groove are respectively arranged at one side, close to each other, of the fixed winding needle piece and the movable winding needle piece; a fixed mounting seat is arranged in the fixed mounting groove, and one end of the fixed mounting seat extends out of the fixed mounting groove and is arranged at the first end of the fixed seat; the movable mounting groove is internally provided with a movable mounting seat and a bottom plate, one end of the movable mounting seat extends out of the movable mounting groove and is arranged at the first end of the fixed seat, the movable mounting seat is rotatably provided with a cam shaft, the cam shaft and the movable mounting seat can rotate relatively, the outer circumferential surface of the cam shaft is provided with an eccentric block, the bottom plate is positioned between the movable mounting seat and the bottom of the movable mounting groove and is arranged at the bottom of the movable mounting groove, the bottom plate is provided with a guide post and a rolling body, the movable mounting seat is provided with a sliding bearing, the guide post is connected with the movable mounting seat through the sliding bearing, the rolling body is respectively contacted with the bottom of the movable mounting groove and one end of the eccentric block, the rolling body can rotate on the outer circumferential surface of the eccentric block and can move along the circumference Xiang Zaisuo of the eccentric block between the two ends of the eccentric block, and the rolling body can drive the movable needle rolling piece and the bottom plate to be far away from or close to the fixed needle rolling piece.
As the preferable technical scheme, one side of movable mount pad that is close to the bottom plate is equipped with accommodation groove and recess, the recess is located between fixing base and the movable needle piece of rolling up and the accommodation has the connecting seat, the connecting seat part protrusion in movable mount pad be close to one side of bottom plate, the connecting seat is relative movable mount pad is the slope setting, the camshaft rotationally sets up in the accommodation groove, the one end of camshaft stretches into in the recess and with the one end of connecting seat is connected.
As a preferable technical scheme, the connecting seat is provided with a locking structure, and the locking structure comprises a positioning rod, a swinging rod, a connecting block, a locking block and two arc-shaped locking pieces; the positioning rod is rotatably arranged at one end of the connecting seat, which is far away from the cam shaft; the swing rod is obliquely arranged relative to the connecting seat, one end of the swing rod is provided with a mounting part, the swing rod is rotationally connected with the connecting seat through the mounting part, the swing rod corresponds to the positioning rod and is provided with a gap between the swing rod and the positioning rod, the swing rod can rotate relative to the connecting seat in a direction close to or far away from the positioning rod, and when the swing rod rotates in a direction close to the positioning rod, the swing rod can be abutted to the positioning rod; the connecting block is accommodated in the mounting cavity of the connecting seat, the locking block penetrates through the mounting cavity, one end of the locking block is provided with a clamping position, the other end of the locking block is connected with the bottom of the mounting cavity through a locking elastic piece, one end of the connecting block is connected with the mounting part, and the other end of the connecting block is propped against the bottom of the clamping position; the two locking pieces are arranged in the groove, the connecting seat is positioned between the two locking pieces, the two locking piece parts are respectively protruded out of one side, close to the bottom plate, of the movable mounting seat, two tooth parts are respectively arranged on the inner peripheral surfaces of the two locking pieces, the clamping position is positioned between the two tooth parts, and one end, with the clamping position, of the locking piece is propped against one end of the two tooth parts.
As a preferable technical scheme, a concave cavity is formed in one end, far away from the cam shaft, of the connecting seat, two through holes are respectively formed in the inner walls of two sides of the concave cavity, the positioning rod part movably penetrates through the two through holes, a positioning rod bearing is sleeved on the periphery of the positioning rod part, the positioning rod bearing is accommodated in the concave cavity, and the positioning rod bearing part extends out of the concave cavity; and one end of the swing rod, which is far away from the mounting part, is rotatably provided with a swing rod bearing.
As a preferable technical scheme, one end of the connecting block, which is propped against the bottom of the clamping position, is rotatably provided with a connecting block bearing, and the connecting block bearing is propped against the bottom of the clamping position.
As the preferred technical scheme, the needle winding device still includes being located the shift fork mechanism of needle winding one side, shift fork mechanism includes shift fork mounting panel, sets up shift fork bottom plate in shift fork mounting panel one side, sets up shift fork drive unit and the shift fork of one side of keeping away from shift fork mounting panel of shift fork bottom plate, the shift fork with shift fork drive unit is connected and with one side sliding connection of keeping away from shift fork mounting panel of shift fork bottom plate, the one end of shift fork is equipped with the fork mouth, shift fork drive unit is used for the drive the shift fork is towards being close to or keep away from the direction of needle winding removes, in order to pass through the fork mouth fork locating lever and pendulum rod or release locating lever and pendulum rod, when passing through the fork mouth fork locating lever and pendulum rod, the one end of locating lever keep away from the connecting seat stretches out from in the fork mouth, the locating lever bearing with one side inner wall of fork mouth contacts, the pendulum rod bearing with the opposite side inner wall of fork mouth offsets, the pendulum rod bearing is received the locating lever.
As a preferable technical scheme, the fork mechanism further comprises a laser sensor, wherein the laser sensor is arranged on one side of the fork base plate far away from the fork mounting plate, and the laser sensor is used for detecting the existence of the positioning rod.
As a preferable embodiment, the sliding bearing is an oil-free bush.
As an optimal technical scheme, a gap is reserved between the bottom plate and the movable mounting seat, a through groove is formed in one side, close to the movable mounting seat, of the bottom plate, a rolling mounting seat is arranged in the through groove, and the rolling body is located in the through groove and arranged on the rolling mounting seat.
As the preferable technical scheme, the movable mounting seat is provided with a guide fastener, and one end of the guide fastener is movably inserted into the guide hole of the bottom plate.
The beneficial effects of the invention are as follows: according to the invention, through the winding needle, manual unwinding needle and other interventions are not needed when the winding diameter is adjusted, so that the time consumption is short, the equipment efficiency and the utilization rate are improved, the labor cost is reduced, and the rejection rate of the battery cell is reduced.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 and fig. 2 are schematic structural diagrams of a winding needle device with a variable winding diameter according to an embodiment of the present invention;
FIG. 3 is a schematic view of the needle winding mechanism of the needle winding device of FIG. 1 with the winding shaft removed;
FIG. 4 is a schematic view of the movable needle part, movable mount and base plate of the needle winding mechanism shown in FIG. 3;
FIG. 5 is a schematic view of the structure of the movable mount and base plate of FIG. 4;
FIG. 6 is a schematic bottom view of the movable mount and base plate of FIG. 5;
FIG. 7 is an exploded schematic view of the movable needle part, movable mount and base plate of the needle winding mechanism shown in FIG. 3;
FIG. 8 is a schematic view of the cam shaft of the needle winding mechanism of FIG. 3;
FIG. 9 is a schematic view of the structure of the connecting seat, locking structure and part of the cam shaft of the needle winding mechanism shown in FIG. 3;
FIG. 10 is a schematic side view of the connecting seat, locking structure and cam shaft of the needle winding mechanism of FIG. 3;
FIG. 11 is an exploded view of the connecting seat and locking structure of the needle winding mechanism of FIG. 3;
FIG. 12 is a schematic view of the winding needle mechanism of the winding needle device of FIG. 1 with the winding shaft removed and the fork mechanism;
FIG. 13 is an enlarged partial schematic view of FIG. 12A;
fig. 14 is an exploded view of the fork mechanism of fig. 12.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the invention can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1 and 2, a winding needle device with a variable winding diameter according to an embodiment of the present invention includes a winding needle mechanism 10, a moving driving mechanism 30 for driving the winding needle mechanism 10 to move back and forth, a rotating driving mechanism for driving the winding needle mechanism 10 to rotate, and a shifting fork mechanism 70.
The winding needle mechanism 10 comprises a fixed seat 12, a winding shaft 14 and a cylindrical winding needle 20. The winding needle 20 and the winding shaft 14 are respectively disposed at a first end and a second end of the fixed base 12. The winding needle 20 is used for winding and forming the battery cell.
The winding shaft 14, the fixed seat 12 and the winding needle 20 pass through the winding head of the winding machine, which is rotatably arranged in two loops 100. The two loops 100 are connected by a connecting post (not shown), wherein the front loop 100 is intended to be arranged on a stationary plate of a winding machine. The winding shaft 14, the fixed seat 12 and the winding needle 20 can rotate together with the winding head, and the winding head can drive the winding shaft 14, the fixed seat 12 and the winding needle 20 to rotate from the unloading station to the winding station or from the winding station to the unloading station. The fixed plate is provided with a region corresponding to the winding station and the unloading station so as to facilitate the winding needle 20 to pass through and rotate in the region.
The movement driving mechanism 30 has a conventional structure. The movement driving mechanism 30 is located on the left side of the needle winding mechanism 10 and is disposed in parallel with the needle winding mechanism 10. The movement driving mechanism 30 includes a linear module 32, a movement rod 34, a support plate 33, a slider 35, and a pull rod 37. The support plate 33 is disposed on the left side of the two collars 100, and the linear module 32 is disposed on the side of the support plate 33 away from the needle winding mechanism 10. The movable rod 34 is located in the linear module 32, one end of the movable rod 34 is fixedly connected with a screw nut of the linear module 32, the other end of the movable rod extends out of the linear module 32 and is connected with the sliding block 35 through the mounting block 342, the sliding block 35 is in sliding fit with the sliding rail 36, and the sliding rail 36 is arranged on one side of the supporting plate 33, which is close to the needle winding mechanism 10, and extends along the length direction of the supporting plate 33. One end of the pull rod 37 is provided on the slide block 35, and the other end extends toward the needle winding mechanism 10 and is provided with two cam followers 38. The two cam followers 38 are engaged with a cam 142 provided on the winding shaft 14, and the cam 142 is rotatable relative to the two cam followers 38. The linear module 32 is used for driving the moving rod 34 to move back and forth, so as to drive the sliding block 35 to move back and forth along the sliding rail 36, so as to drive the pull rod 36 to move back and forth. When the linear module 32 drives the moving rod 34 to move back and forth, the winding shaft 14, the fixed shaft 12 and the winding needle 20 can be driven to move back and forth relative to the winding head under the action of the cooperation of the two cam followers 38 and the cam 142.
The rotary driving mechanism is of an existing structure and mainly comprises a servo motor. The winding shaft 14 is connected with a servo motor through a synchronous belt assembly, specifically, the synchronous belt assembly comprises a driving wheel, a driven wheel 52 and a synchronous belt 53 sleeved on the peripheries of the driving wheel and the driven wheel 52, the driving wheel is sleeved on the periphery of an output end of the servo motor, the driven wheel 52 is sleeved on the periphery of the winding shaft 14, the servo motor is used for driving the driving wheel to rotate through the output end of the servo motor, and under the action of the synchronous belt 53 and the driven wheel 52, the winding shaft 14 can be driven to rotate relative to the winding head, and the cam 142, the fixing seat 12 and the winding needle 20 can rotate along with the winding shaft 14. When the linear module 32 drives the moving rod 34 to move back and forth, the rotary driving mechanism can move along with the winding shaft 14, the fixing seat 12 and the winding needle 20. When the winding shaft 14, the fixing base 12 and the winding needle 20 rotate together with the winding head, the rotation driving mechanism cannot rotate together with the winding head.
As shown in fig. 3 and 11, the winding needle 20 includes a semicircular fixed winding needle member 22 and a semicircular movable winding needle member 23 which are disposed opposite to each other. A gap is provided between the fixed winding needle 22 and the movable winding needle 23. The fixed winding needle member 22 and the movable winding needle member 23 are provided with a fixed mounting groove and a movable mounting groove 232 extending in the axial direction of the winding needle 20, respectively, on the sides thereof. The fixed mounting groove is internally provided with a fixed mounting seat 24, and specifically, the fixed mounting seat 24 is arranged at the bottom of the fixed mounting groove through screws and the like. One end of the fixed mounting seat 24 is U-shaped and extends out of the fixed mounting groove, and is arranged in a first mounting hole position of the first end of the fixed seat 12 through a screw and the like, the other end of the fixed mounting seat 24 is provided with a fixed positioning block 242, and the fixed positioning block 242 is positioned outside the fixed mounting groove. The movable mounting groove 232 accommodates the movable mounting seat 25 and the bottom plate 26, and the bottom plate 26 is located between the movable mounting seat 25 and the bottom of the movable mounting groove 232 and is disposed at the bottom of the movable mounting groove 232 by screws or the like, with a gap between the bottom plate 26 and the movable mounting seat 25. The fixed mounting seat 24 and the movable mounting seat 25 are oppositely arranged left and right, one end of the movable mounting seat 25 is U-shaped and extends out of the movable mounting groove 232, and is arranged in a second mounting hole position at the first end of the fixed seat 12 through a screw and the like, the other end of the movable mounting seat 25 is provided with a movable positioning block 252, and the movable positioning block 252 is positioned outside the movable mounting groove 232. The fixed positioning block 242 and the movable positioning block 252 are used for being matched with positioning holes of a positioning mechanism of a winding machine, when the winding needle 20 is located at a winding station, the winding needle 20 is driven to move forwards by the moving driving mechanism 30, so that the fixed positioning block 242 and the movable positioning block 252 can be matched with the positioning holes, and the winding needle 20 can be rotatably supported by the positioning mechanism. Two semicircular clamping needles 27 are arranged between the movable mounting seat 25 and the fixed mounting seat 24, the two clamping needles 27 are oppositely arranged left and right, and a clamping gap for clamping the diaphragm is formed between the two clamping needles 27 and is not contacted with the fixed mounting seat 24 and the movable mounting seat 25. One ends of the two clamping pins 27 are respectively arranged at the first ends of the fixed base 12, and the other ends are arranged between the fixed positioning block 242 and the movable positioning block 252.
Two hollowed-out positions 233 are arranged on one side, close to the fixed rolling needle piece 22, of the movable rolling needle piece 23, the two hollowed-out positions 233 are arranged at intervals and are communicated with the movable mounting groove 232, and as shown in fig. 7, the arranged hollowed-out positions 233 can reduce the weight of the movable rolling needle piece 23. The structure of the fixed winding needle 22 is the same as that of the movable winding needle 23.
The movable mount 25 is rotatably provided with a cam shaft 255, and the cam shaft 255 and the movable mount 25 are rotatable relative to each other. Specifically, a receiving groove and a groove 254 extending along the axial direction of the winding needle 20 are provided on one side of the movable mounting seat 25 near the bottom plate 26, and the groove 254 is communicated with the receiving groove. The cam shaft 255 is accommodated in the accommodation groove, and one end of the cam shaft 255 extends into the groove 254. The movable mounting seat 25 is provided with cam seats 2553 on one side thereof adjacent to the bottom plate 26 by screws or the like, and the cam seats 2553 are partially accommodated in the accommodating portions 269 of the bottom plate 26, respectively. One side of the cam seat 2553, which is close to the accommodating groove, is respectively provided with a concave position 25532, an installation space is formed between the concave position 25532 and the bottom of the accommodating groove, a rotating bearing 2554 is respectively arranged in the installation space, and the rotating bearing 2554 is sleeved on the periphery of the cam shaft 255, so that the movable mounting seat 25 and the cam shaft 255 can rotate relatively through the rotating bearing 2554. In this embodiment, the number of the cam seats 2553 is two, and the two cam seats 2553 are respectively close to two ends of the cam shaft 255, so that the number of the accommodating positions 269, the installation space and the rotation bearings 2554 are respectively two, and it is understood that the number of the cam seats 2553, rong Zhiwei 269, the installation space and the rotation bearings 2554 can be set according to practical situations.
The side of the movable mounting seat 25, which is close to the bottom plate 26, is provided with a limiting seat 2555, two cam seats 2553, wherein the cam seat 2553, which is far away from the groove 254, is positioned between the limiting seat 2555 and the cam seat 2553, which is close to the groove 254, one side, which is close to the accommodating groove, of the limiting seat 2555 is provided with a limiting groove which is in rotating fit with one end, which is far away from the groove 254, of the cam shaft 255, and two rotating bearings 2554, wherein the rotating bearing 2554, which is far away from the groove 254, is in contact with the limiting seat 2555, and the outer diameter of the rotating bearing 2554 is larger than the inner diameter of the limiting groove, so that the rotating bearings 2554 can be limited through the limiting seat 2555.
The side of the bottom plate 26, which is close to the movable mounting seat 25, is provided with a guide post 265, the side of the movable mounting seat 25, which is close to the bottom plate 26, is provided with a bearing mounting hole 253, and a sliding bearing 2652 is arranged in the bearing mounting hole 253 and sleeved on the periphery of the guide post 265, so that the guide post 265 is connected with the movable mounting seat 25 through the sliding bearing 2652, and the guide post 265 can move left and right relative to the sliding bearing 2652. The sliding bearing 2652 is preferably an oilless bushing. In this embodiment, the number of the guide posts 265 is four, the four guide posts 265 are symmetrically arranged up and down, the number of the sliding bearings 2652 and the bearing mounting holes 253 corresponds to the number of the guide posts 265, and it is understood that the number of the guide posts 265 and the sliding bearings 2652 can be set according to the actual situation, and the positions of the guide posts 265 can be set according to the actual situation.
The outer peripheral surface of the cam shaft 255 is provided with two eccentric block groups, each eccentric block group comprises two arc-shaped eccentric blocks 2552, the two eccentric blocks 2552 are arranged at intervals, and the center of a circle where the eccentric blocks 2552 are positioned is positioned at one side of the center of the cam shaft 255 and is not overlapped with the center of the cam shaft 255. Two through grooves 262 are formed in one side, close to the movable mounting seat 25, of the bottom plate 26, the two through grooves 262 are located between the two containing positions 269, four guide posts 265 are located between the two through grooves 262, two rolling mounting seats 263 are respectively arranged in the two through grooves 262, two mounting protruding portions 2632 are respectively formed at the upper end and the lower end of the rolling mounting seats 263, and the two mounting protruding portions 2632 are respectively arranged on one side, close to the movable mounting seat 25, of the bottom plate 26 through screws and the like. Each rolling mounting seat 263 corresponds to an eccentric block group, and the front end and the rear end of each rolling mounting seat 263 are respectively provided with two rolling bodies 264 through pins and the like, and the rolling bodies 264 are preferably bearings. The two rolling bodies 264 are located in the corresponding through grooves 262 and correspond to the two eccentric blocks 2552 of the corresponding eccentric block group, respectively. Each rolling body 264 is respectively in contact with the bottom of the movable mounting groove 25 and the upper end of the corresponding eccentric block 2552. When the movable mounting seat 25 rotates relative to the cam shaft 255, because the guide post 265 is connected with the movable mounting seat 25 through the sliding bearing 2652, under the action of the guide post 265 and the sliding bearing 2652, the bottom plate 26 and the movable needle rolling piece 23 can rotate along with the movable mounting seat 25, the rolling body 264 is driven by the bottom plate 26, the rolling body 264 can rotate on the outer peripheral surface of the corresponding eccentric block 2552, namely, rotates and can move between two ends of the corresponding eccentric block 2552 along the circumferential direction of the corresponding eccentric block 2552, when the rolling body 264 moves between two ends of the corresponding eccentric block 2552, under the guide of the guide post 265 and the sliding bearing 2652, the rolling body 264 can drive the movable needle rolling piece 23 and the bottom plate 26 to be away from or close to the fixed needle rolling piece 22, therefore, when the movable mounting seat 25 rotates relative to the cam shaft 255, the movable needle rolling piece 23 and the bottom plate 26 can be driven to be away from or close to the fixed needle rolling piece 22 along with the eccentric movement of the rolling body 264, and the rolling body 264 can be driven by the eccentric movement of the rolling body 264, so that the rolling needle rolling piece 23 and the fixed needle rolling piece 22 can be manually rolled needle rolling needle 20 can be adjusted to be reduced (the rolling needle diameter can be adjusted).
Further, the movable mounting seat 25 is provided with a guiding fastener 258, one end of the guiding fastener 258 is movably inserted into a guiding hole 267 of the bottom plate 26, the guiding fastener 258 is a screw, for example, when the movable mounting seat 25 rotates relative to the cam shaft 255, under the connection effect of the guiding post 265 and the sliding bearing 2652 and the guiding fastener 258, the bottom plate 26 and the movable needle rolling member 23 can rotate along with the movable mounting seat 25, and when the rolling member 264 moves between two ends of the corresponding eccentric block 2552, the rolling member 264 can drive the movable needle rolling member 23 and the bottom plate 26 to move away from or close to the fixed needle rolling member 22 under the guiding effect of the guiding post 265, the sliding bearing 2652 and the guiding fastener 258.
Specifically, in this embodiment, the number of the guide fasteners 258 is eight, and two upper slots 257 and two lower slots are respectively provided at the upper end and the lower end of the movable mounting seat 25, and the two upper slots 257 and the two lower slots are located between the two through slots 262. The upper end of one side of the movable mounting seat 25, which is close to the bottom plate 26, is respectively provided with two upper side mounting holes 2572a at positions corresponding to each upper groove position 257, the lower end of one side of the movable mounting seat 25, which is close to the bottom plate 26, is respectively provided with two lower side mounting holes 2572b at positions corresponding to each lower groove position, each upper side mounting hole 2572a and each lower side mounting hole 2572b are respectively provided with a guide fastener 258, and one end of each guide fastener 258 protrudes out of one side of the movable mounting seat 25, which is close to the bottom plate 26, and is movably inserted into the guide hole 267 of the bottom plate 26. The periphery of each guiding fastener 258 is sleeved with a compressing elastic member 259, the compressing elastic member 259 is preferably a spring, the compressing elastic member 259 is located in the corresponding groove, one end of the compressing elastic member 259 is connected with one end, far away from the guiding hole 267, of the corresponding guiding fastener 258, the other end of the compressing elastic member 259 is connected with the inner wall of one side, close to the bottom plate 26, of the corresponding groove, and the compressing elastic member 259 is in a compressed state. It is understood that the number of the guide fasteners 258, the upper slots 257, the lower slots, the upper mounting holes 2572a, the lower mounting holes 2572b, and the pressing elastic members 259 may be set according to practical situations.
The recess 254 accommodates a connecting socket 256, and the connecting socket 256 partially protrudes from a side of the movable mounting socket 25 adjacent to the bottom plate 26. The connecting seat 256 is inclined with respect to the movable mounting seat 25, in this embodiment, the connecting seat 256 is inclined toward the direction close to the lower inner wall of the groove 254, and the connecting seat 256 is close to the lower inner wall of the groove 254. One end of the connecting seat 256 is sleeved on the outer periphery of one end of the cam shaft 255 extending into the groove 254, so that one end of the connecting seat 256 is connected with one end of the cam shaft 255 extending into the groove 254. In this embodiment, the cross-sectional shape of the end of the cam shaft 255 extending into the groove 254 is rectangular, as shown in fig. 7 and 8, one end of the connecting seat 256 has a rectangular mounting hole 2561, as shown in fig. 11, one end of the connecting seat 256 is sleeved on the outer periphery of the end of the cam shaft 255 extending into the groove 254 through the rectangular mounting hole 2561, and the structure can fix the connecting seat 256 and the cam shaft 255 together, thereby preventing the connecting seat 256 and the cam shaft 255 from rotating relatively.
The connecting seat 256 is provided with a locking structure for locking the connecting seat 256, the cam shaft 255 and the movable mounting seat 25 together. The locking structure comprises a positioning rod 282, a swinging rod 283, a connecting block 284, a locking block 285 and two arc-shaped locking pieces 286.
Specifically, the end of the connecting seat 256 far away from the cam shaft 255 is rotatably provided with a positioning rod 282, the positioning rod 282 is located between the connecting seat 256 and the fixed seat 12, that is, the positioning rod 282 is located at the rear of the movable needle rolling member 23, and the positioning rod 282 is vertically disposed with the connecting seat 256.
The swinging rod 283 is located between the connecting seat 256 and the fixing seat 12 and is inclined relative to the connecting seat 256, in this embodiment, the swinging rod 283 is inclined relative to the connecting seat 256 in a direction approaching to the upper inner wall of the groove 254. An included angle is formed between the axis of the swing rod 283 and the axis of the connecting seat 256, and the included angle can be set according to practical situations. One end integrated into one piece of pendulum rod 283 has installation department 2832, and the pendulum rod 283 rotates with connecting seat 256 through installation department 2832 to be connected, and specifically installation department 2832 runs through connecting seat 256 and sets up and can rotate relative to connecting seat 256, and the extending direction of the line between installation department 2832 and the locating lever 282 is the same with the axial of connecting seat 256. The swinging rod 283 corresponds to the positioning rod 282 and has a gap with the positioning rod 282, that is, the positioning rod 282 is located between two ends of the swinging rod 283, the swinging rod 283 can rotate towards the direction approaching or separating from the positioning rod 282 relative to the connecting seat 256, and when the swinging rod 283 rotates towards the direction approaching to the positioning rod 282, the swinging rod 283 can be abutted to the positioning rod 282. The swing link 283 is adapted to abut the positioning rod 282.
The connecting block 284 is accommodated in the installation cavity 2563 of the connecting seat 256, the locking block 285 penetrates through the installation cavity 2563, one end of the locking block 285 is provided with a clamping position 2852, the other end of the locking block 285 is connected with the bottom of the installation cavity 2563 through a locking elastic piece 2853, and the locking elastic piece 2853 is preferably a spring. One end of the connection block 284 is connected to the mounting portion 2832 by being fitted around the outer periphery of the mounting portion 2832, and the other end abuts against the bottom of the locking portion 2852.
Two locking pieces 286 are disposed in the groove 254, specifically, two ends of the two locking pieces 286 are disposed on an upper inner wall and a lower inner wall of the groove 254 by screws or the like, respectively. The connecting seat 256 is located between two locking members 286, and the two locking members 286 partially protrude from one side of the movable mounting seat 25 near the bottom plate 26. The inner peripheral surfaces of the two locking pieces 286 are respectively provided with two tooth portions 2862, the clamping position 2852 is positioned between the two tooth portions 2862, and one end of the locking piece 285 with the clamping position 2852 is abutted against the lower ends of the two tooth portions 2862. In practical application, in the process that the swing rod 283 rotates to the swing rod 283 and abuts against the positioning rod 282 in the direction close to the positioning rod 282 relative to the connecting seat 256, the rotation of the swing rod 283 can drive the connecting block 284 to rotate, the rotation of the connecting block 284 can push the locking block 285 to move in the direction far away from the tooth portions 2862 of the locking piece 286, meanwhile, the locking elastic piece 2853 is compressed, at this time, one end of the locking block 285 with the clamping position 2852 is separated from the lower ends of the two tooth portions 2862, namely, unlocking is achieved, and the connecting seat 256, the cam shaft 255 and the movable mounting seat 25 are separated. When the locking elastic member 2853 is reset, the locking elastic member 2853 can push the locking block 285 to move towards the direction of the tooth 2862 close to the locking member 286 until one end of the locking block 285 with the clamping position 2852 abuts against the lower ends of the two tooth 2862, and the movement of the locking block 285 can drive the connecting block 284 and the swinging rod 283 to rotate towards the direction away from the positioning rod 282 to the initial position, so as to lock the connecting seat 256, the cam shaft 255 and the movable mounting seat 25 together.
In this embodiment, the upper end position and the lower end position of the corresponding tooth 2862 are respectively provided with a "+" mark and a "-" mark on the side of the two locking pieces 286 away from each other, the position of the middle of the corresponding tooth 2862 is provided with a "0" mark on the side of the two locking pieces 286 away from each other, as shown in fig. 10, when each rolling element 264 contacts the bottom of the movable mounting groove 232 and the upper end of the corresponding eccentric block 2552, the end of the locking piece 285 having the clamping position 2852 corresponds to the lower end of the two tooth 2862, i.e., corresponds to the "-" mark, at this time, the rolling diameter of the rolling needle 20 is minimum, and when each rolling element 264 contacts the bottom of the movable mounting groove 232 and the lower end of the corresponding eccentric block 2552, the end of the locking piece 285 having the clamping position 2852 corresponds to the "+" mark, and when the rolling element 264 contacts the bottom of the movable mounting groove 232 and the middle of the corresponding eccentric block 2552, the end of the locking piece 285 has the clamping position 2852 corresponding to the maximum diameter of the rolling needle 20, i.e., the two teeth 2852 corresponds to the maximum diameter of the rolling needle 2852. The included angle between the line between the upper end of the tooth 2862 and the center of the circle where the locking member 286 is located and the line between the lower end of the tooth 2862 and the center of the circle where the locking member 286 is located is 60-90 degrees, and it will be understood that the included angle can be set according to practical situations.
The end of the connecting seat 256 far away from the cam shaft 255 is provided with a concave cavity 2562, the front side inner wall and the rear side inner wall of the concave cavity 2562 are respectively provided with two through holes 25622, the positioning rod 282 is partially movably arranged through the two through holes 25622, the periphery of the positioning rod is sleeved with a positioning rod bearing 2822, the positioning rod bearing 2822 is contained in the concave cavity 2562, the positioning rod bearing 2822 partially extends out of the concave cavity 2562, namely, the positioning rod bearing 2822 partially protrudes out of one end of the connecting seat 256 far away from the cam shaft 255, one side of the connecting seat 256 close to the inner wall of the lower side of the groove 254, and one side of the connecting seat 256 close to the inner wall of the upper side of the groove 254. The periphery cover of locating lever 282 is equipped with two jump ring 2823, and two through-holes 25622 are located between two jump rings 2823, and two jump rings 2823 are spacing locating lever 282 to prevent locating lever 282 back and forth movement. The one end of the swinging rod 283 away from the mounting portion 2832 is provided with a first accommodating cavity, a first mounting shaft such as a pin shaft is arranged on the front side inner wall and the rear side inner wall of the first accommodating cavity in a penetrating manner, the swinging rod bearing 2834 is accommodated in the first accommodating cavity and sleeved on the periphery of the first mounting shaft, and the swinging rod bearing 2834 partially extends out of the first accommodating cavity, namely, the swinging rod bearing 2834 partially protrudes out of one side of the swinging rod 283 close to the lower side inner wall of the groove 254, one side of the swinging rod 283 close to the upper side inner wall of the groove 254 and one end of the swinging rod 283 away from the mounting portion 2832. The outer periphery of one end, far away from the swinging rod 283, of the mounting portion 2832 is sleeved with a clamp spring 28322, and the clamp spring 28322 limits the mounting portion 283 so as to prevent the mounting portion 2832 from moving forwards and backwards. The one end that the bottom of joint block 284 and screens 2852 offset is equipped with the second accommodation chamber, the front side inner wall in second accommodation chamber, the rear side inner wall runs through and is provided with the second installation axle, joint block bearing 2842 holds in the second accommodation chamber and overlaps the periphery of establishing at the second installation axle, joint block bearing 2842 part stretches out the second accommodation chamber and offsets with the bottom of screens 2852, namely joint block bearing 2842 part protrusion is in the one side that is close to recess 254 downside inner wall of joint block 284, the one side that is close to recess 254 upside inner wall of joint block 284, the one end that is close to with screens 2852 of joint block 284. The end of the connection block 284 that is adjacent to the catch 2852 is adapted to the catch 2852. The connecting block bearing 2842 can form sliding contact with the bottom of the clamping position 2852, so that the locking block 285 is prevented from being damaged.
As shown in fig. 12 to 14, the fork mechanism 70 is located on the right of the winding needle 20. The fork mechanism 70 includes a fork mounting plate 72, a fork bottom plate 73 provided at a rear side of the fork mounting plate 72, a fork driving unit 74 provided at a side of the fork bottom plate 73 remote from the fork mounting plate 72, a fork 75, and a laser sensor 76 provided at a side of the fork bottom plate 73 remote from the fork mounting plate 72.
The fork mounting plate 72 is adapted to be disposed on the frame of the winder. The shifting fork 75 is connected with the shifting fork driving unit 74, specifically, the shifting fork 75 and the shifting fork driving unit 74 are arranged side by side, in this embodiment, the shifting fork driving unit 74 is located above the shifting fork 75, one end of the shifting fork 75, which is close to the shifting fork driving unit 74, is provided with an L-shaped piece 752, the L-shaped piece 752 is located at the left side of the shifting fork driving unit 74, the shifting fork driving unit 74 is a cylinder, the shifting fork driving unit 74 is arranged on one side, far away from the shifting fork mounting plate 72, of the shifting fork bottom plate 73 through a cylinder seat 742, and an output shaft 743 of the shifting fork driving unit 74 is connected with the L-shaped piece 752, so that the shifting fork driving unit 74 can drive the shifting fork 75 to move towards a direction close to or far away from the winding needle 20 through the output shaft 743 of the shifting fork driving unit.
The shifting fork 75 is in sliding connection with one side, far away from the shifting fork mounting plate 72, of the shifting fork bottom plate 73, specifically, one side, far away from the shifting fork mounting plate 72, of the shifting fork bottom plate 73 is provided with a guide rail 732, the guide rail 732 is in sliding fit with a sliding block 733, the sliding block 733 is arranged on one side, close to the shifting fork bottom plate 73, of the shifting fork 75, accordingly, the shifting fork 75 is in sliding connection with one side, far away from the shifting fork mounting plate 72, of the shifting fork bottom plate 73 through the guide rail 732, the sliding block 733 and the guide rail 732, and moving stability of the shifting fork 75 can be improved.
One end of the fork 75 is provided with a fork opening 753, when the fork driving unit 74 drives the fork 75 to move towards a direction approaching or separating from the winding needle 20, the positioning rod 282 and the swinging rod 283 can be forked through the fork opening 753 or the positioning rod 282 and the swinging rod 283 can be released, when the positioning rod 282 and the swinging rod 283 are forked through the fork opening 753, one end of the positioning rod 282 far away from the connecting seat 256 extends out of the fork opening 753 and is positioned at the rear of the fork 75, the positioning rod bearing 2822 is contacted with the inner wall of the lower side of the fork opening 753, the swinging rod bearing 2834 is abutted with the inner wall of the upper side of the fork opening 753, the swinging rod 283 is abutted to the positioning rod 282, as shown in fig. 12 and 13, the positioning rod bearing 2822 can form sliding contact with the inner wall of the upper side of the fork opening 753 and the inner wall of the upper side of the fork opening 753 respectively, and the swinging rod 283 can be prevented from being damaged.
The upper inner wall and the lower inner wall of the opening end of the fork opening 753 are respectively provided with two inclined planes 7532, the inclined planes 7532 play a guiding role, when the fork 75 moves to the position rod 282 and the swing rod 283 which are located at the opening of the fork opening 753 of the fork 75 and one end of the swing rod 283 which is far away from the mounting part 2832, the swing rod bearing 2834 of the swing rod 283 firstly contacts with the inclined planes 7532 of the upper inner wall of the fork opening 753, and as the fork 75 moves continuously, the swing rod 283 rotates relative to the connecting seat 256 in the direction of approaching the position rod 282 until the swing rod 283 abuts against the position rod 282 and the swing rod bearing 2834 abuts against the upper inner wall of the fork opening 753 under the action of the inclined planes 7532 of the upper inner wall of the fork opening 753.
The laser sensor 76 is located at the rear of the fork 75, the laser sensor 76 is disposed at a side of the fork bottom plate 73 far from the fork mounting plate 72 through an L-shaped block 762, the laser sensor 76 is used for detecting the presence or absence of the positioning rod 282, and when the laser sensor 76 detects the positioning rod 282, the fork 75 can be driven to move in a direction approaching the winding needle 20 through the fork driving unit 74.
Through the structure, the working principle of the invention is as follows: when the winding forming cell is performed, the winding shaft 14 is driven to move forwards by the moving driving mechanism 30, so that the fixed seat 12 and the winding needle 20 can be driven to move forwards until the winding needle 20 passes through the area of the fixed plate and reaches the unloading station, then the winding needle 20 is driven to rotate from the unloading station to the winding station by the winding head, then the winding needle 20 is driven to move forwards by the moving driving mechanism 30 until the fixed positioning block 242 and the movable positioning block 252 of the winding needle 20 are matched with the positioning holes of the positioning mechanism, and the winding forming cell can be performed by the winding needle 20.
For example, when the winding diameter of the winding needle 20 needs to be adjusted to the maximum to adjust the alignment degree of the battery cell tab, after the battery cell is wound and formed, the winding needle 20 is driven by the moving driving mechanism 30 to move backwards until the fixed positioning block 242 and the movable positioning block 252 are separated from the positioning hole of the positioning mechanism, then the winding needle 20 is driven by the winding head to rotate from the winding station to the discharging station for discharging, after the discharging is finished, the positioning rod 282 is detected by the laser sensor 76, after the positioning rod 282 is detected by the laser sensor 76, the shifting fork 75 is driven by the shifting fork driving unit 74 to move towards the direction approaching to the winding needle 20, so the positioning rod 282 and the swinging rod 283 can be forked through the fork opening 753, as shown in figures 1, 2, 11 and 12, in the process of forking the positioning rod 282 and the swinging rod 283 through the fork opening 753, under the extrusion of the inclined plane 7532 of the inner wall of the upper side of the fork opening 753, the swinging rod 283 can rotate relative to the connecting seat 256 until the swinging rod 283 is abutted against the positioning rod 282, the swinging rod bearing 2834 is abutted against the inner wall of the upper side of the fork opening 753, the swinging rod 283 can drive the connecting block 284 to rotate, the locking block 285 can be pushed to move in the direction away from the locking piece 286 by the rotation of the connecting block 284, meanwhile, the locking elastic piece 2853 is compressed, at the moment, one end of the locking block 285, which is provided with the clamping position 2852, is separated from the lower ends of the two tooth portions 2862, which are close to the grooves 254, so that unlocking is realized, and the connecting seat 256 and the cam shaft 255 are separated from the movable mounting seat 25. Then, the winding shaft 14 is driven to rotate to the right to a preset position by the rotation driving mechanism, because the positioning rod 282 and the swinging rod 283 are forked by the fork opening 753 of the shifting fork 75, the rotation of the winding shaft 14 can drive the fixed seat 12, the fixed mounting seat 24 and the movable mounting seat 25 to rotate to the preset position, the connecting seat 256 and the cam shaft 255 can not rotate along with the movable mounting seat 25, namely, the connecting seat 256 and the cam shaft 255 are fixed, the rotation of the fixed mounting seat 24 can drive the fixed needle rolling piece 22 to rotate together, the rotation of the movable mounting seat 25 can drive the bottom plate 26 and the movable needle rolling piece 23 to rotate together, and in the process of rotating the bottom plate 26, because the cam shaft 255 is fixed, the rolling body 264 can rotate on the outer peripheral surface of the corresponding eccentric block 2552, namely, rotate and can move along the circumferential direction of the eccentric block 2552 towards the lower end of the corresponding eccentric block 2552 until the rolling body 264 contacts with the middle part of the corresponding eccentric block 2552, and in the process of moving the rolling body, the rolling body 264 can drive the bottom plate 26 and the movable needle rolling piece 23 to move away from the fixed needle rolling piece 22, namely, the distance between the bottom plate 26 and the movable needle rolling piece 23 is increased. After the completion, drive the shift fork 75 to move to the initial position in the direction away from the needle 20 through shift fork drive unit 74, because locating lever 282 and pendulum rod 283 are not locked at this moment, locking elastic member 2853 resets, locking elastic member 2853 can promote latch 285 to move towards the direction that is close to the tooth 2862 of latch 286, until the one end that has screens 2852 of latch 285 and the middle part butt of two tooth 2862, the removal of latch 285 can drive connecting block 284, pendulum rod 283 to rotate to initial position in the direction of keeping away from locating lever 282, so can realize locking connecting seat 256, camshaft 255 and movable mounting seat 25 together again, afterwards can carry out the winding shaping process, can realize adjusting the alignment degree of electric core tab when winding shaping next electric core, thereby reach the purpose of repairing positive electric core tab dislocation.
When the winding diameter of the winding needle 20 is adjusted to the maximum, if the winding diameter of the winding needle 20 is required to be reduced, after the winding needle 20 is driven by the moving driving mechanism 30 to move backwards to a position where the fixed positioning block 242 and the movable positioning block 252 are separated from the positioning holes of the positioning mechanism, the positioning rod 282 is detected by the laser sensor 76, after the positioning rod 282 is detected by the laser sensor 76, the shifting fork 75 is driven by the shifting fork driving unit 74 to move towards the direction approaching to the winding needle 20, so that the positioning rod 282 and the swinging rod 283 can be forked through the fork opening 753, and unlocking can be realized, and the connecting seat 256 is separated from the movable mounting seat 25. Then, the winding shaft 14 is driven to rotate left to an initial position or further to rotate right to a preset position by the rotary driving mechanism, so that the fixed seat 12, the fixed seat 24, the movable seat 25, the fixed needle rolling piece 22, the bottom plate 26 and the movable needle rolling piece 23 can be driven to rotate to the preset position, in the process of rotating the bottom plate 26, the rolling body 264 can rotate on the outer peripheral surface of the corresponding eccentric block 2552, namely rotate and can move along the circumferential direction of the eccentric block 2552 towards the upper end of the corresponding eccentric block 2552 or move towards the lower end of the corresponding eccentric block 2552 until the rolling body 264 contacts with the upper end or the lower end of the corresponding eccentric block 2552, when the rolling body 264 contacts with the lower end of the corresponding eccentric block 2552, the connecting seat contacts with the upper inner wall of the groove 254, in the process of moving the rolling body 264, the rolling body 264 can drive the bottom plate 26 and the movable needle rolling piece 23 to move towards the fixed needle rolling piece 22, namely the distance between the movable needle rolling piece 23 and the fixed needle rolling piece 2552 is reduced, namely the needle rolling diameter is reduced to the smallest. After the completion, the shifting fork 75 is driven to move to the initial position in the direction away from the winding needle 20 by the shifting fork driving unit 74, at this time, because the positioning rod 282 and the swinging rod 283 are not clamped, the locking elastic piece 2853 is reset, the locking elastic piece 2853 can push the locking piece 285 to move in the direction close to the tooth 2862 of the locking piece 286 until one end of the locking piece 285 with the clamping position 2852 is abutted against the lower ends of the two tooth 2862 or the upper ends of the two tooth 2862, the movement of the locking piece 285 can drive the connecting block 284 and the swinging rod 283 to rotate to the initial position in the direction away from the positioning rod 282, and then the connecting seat 256, the cam shaft 255 and the movable mounting seat 25 can be locked together again, and the winding forming process can be performed.
The above-mentioned method of adjusting the winding diameter of the winding needle 20 to the maximum and minimum values is the same as the above-mentioned method, and when the winding diameter of the winding needle 20 is actually adjusted, the winding diameter of the winding needle 20 can be adjusted according to the tab misalignment of the previous cell.
In other embodiments, when the fork mechanism 70 is not used, the swing rod 283 can be manually rotated to a position abutting against the positioning rod 282 to unlock, then the connecting seat 256 is manually pushed to move in a direction approaching to the upper inner wall of the groove 254, the movement of the connecting seat 256 can drive the cam shaft 255 to rotate, the rotation of the cam shaft 255 can drive the eccentric block 2552 to rotate, so that the corresponding rolling body 264 can be driven to rotate on the outer peripheral surface thereof and can move along the circumferential direction thereof toward the lower end thereof, the rolling body 264 can also drive the bottom plate 26 and the movable rolling needle 23 to move away from or approach to the fixed rolling needle 22, and the rolling diameter of the rolling needle 20 can also be changed.
According to the invention, through the winding needle 20, manual intervention such as unwinding the winding needle 20 is not needed when the winding diameter is adjusted, so that the time consumption is short, the equipment efficiency and the utilization rate are improved, the labor cost is reduced, and the rejection rate of the battery cell is reduced.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the appended claims.
Claims (10)
1. The winding needle device with the variable winding diameter comprises a winding needle mechanism, a movable driving mechanism and a rotary driving mechanism, wherein the winding needle mechanism comprises a fixed seat, a winding needle and a winding shaft, the winding needle and the winding shaft are respectively arranged at a first end and a second end of the fixed seat, and the winding shaft is respectively connected with the movable driving mechanism and the rotary driving mechanism;
a fixed mounting seat is arranged in the fixed mounting groove, and one end of the fixed mounting seat extends out of the fixed mounting groove and is arranged at the first end of the fixed seat;
the movable mounting groove is internally provided with a movable mounting seat and a bottom plate, one end of the movable mounting seat extends out of the movable mounting groove and is arranged at the first end of the fixed seat, the movable mounting seat is rotatably provided with a cam shaft, the cam shaft and the movable mounting seat can rotate relatively, the outer circumferential surface of the cam shaft is provided with an eccentric block, the bottom plate is positioned between the movable mounting seat and the bottom of the movable mounting groove and is arranged at the bottom of the movable mounting groove, the bottom plate is provided with a guide post and a rolling body, the movable mounting seat is provided with a sliding bearing, the guide post is connected with the movable mounting seat through the sliding bearing, the rolling body is respectively contacted with the bottom of the movable mounting groove and one end of the eccentric block, the rolling body can rotate on the outer circumferential surface of the eccentric block and can move along the circumference Xiang Zaisuo of the eccentric block between the two ends of the eccentric block, and the rolling body can drive the movable needle rolling piece and the bottom plate to be far away from or close to the fixed needle rolling piece.
2. The needle winding device according to claim 1, wherein a receiving groove and a groove are formed in one side of the movable mounting seat, which is close to the bottom plate, and a connecting seat is arranged between the fixed seat and the movable needle winding part in a receiving manner, the connecting seat is partially protruded out of one side of the movable mounting seat, which is close to the bottom plate, the connecting seat is obliquely arranged relative to the movable mounting seat, the cam shaft is rotatably arranged in the receiving groove, and one end of the cam shaft extends into the groove and is connected with one end of the connecting seat.
3. The needle winding device according to claim 2, wherein the connecting seat is provided with a locking structure, and the locking structure comprises a positioning rod, a swing rod, a connecting block, a locking block and two arc-shaped locking pieces;
the positioning rod is rotatably arranged at one end of the connecting seat, which is far away from the cam shaft;
the swing rod is obliquely arranged relative to the connecting seat, one end of the swing rod is provided with a mounting part, the swing rod is rotationally connected with the connecting seat through the mounting part, the swing rod corresponds to the positioning rod and is provided with a gap between the swing rod and the positioning rod, the swing rod can rotate relative to the connecting seat in a direction close to or far away from the positioning rod, and when the swing rod rotates in a direction close to the positioning rod, the swing rod can be abutted to the positioning rod;
The connecting block is accommodated in the mounting cavity of the connecting seat, the locking block penetrates through the mounting cavity, one end of the locking block is provided with a clamping position, the other end of the locking block is connected with the bottom of the mounting cavity through a locking elastic piece, one end of the connecting block is connected with the mounting part, and the other end of the connecting block is propped against the bottom of the clamping position;
the two locking pieces are arranged in the groove, the connecting seat is positioned between the two locking pieces, the two locking piece parts are respectively protruded out of one side, close to the bottom plate, of the movable mounting seat, two tooth parts are respectively arranged on the inner peripheral surfaces of the two locking pieces, the clamping position is positioned between the two tooth parts, and one end, with the clamping position, of the locking piece is propped against one end of the two tooth parts.
4. The needle winding device according to claim 3, wherein a concave cavity is formed in one end, far away from the cam shaft, of the connecting seat, two through holes are formed in the inner walls of the two sides of the concave cavity respectively, the positioning rod part movably penetrates through the two through holes, a positioning rod bearing is sleeved on the periphery of the positioning rod part, the positioning rod bearing is accommodated in the concave cavity, and the positioning rod bearing part extends out of the concave cavity; and one end of the swing rod, which is far away from the mounting part, is rotatably provided with a swing rod bearing.
5. A needle winding device according to claim 3, characterized in that the end of the connection block abutting against the bottom of the detent is rotatably provided with a connection block bearing, which abuts against the bottom of the detent.
6. The needle winding device according to claim 4, further comprising a shifting fork mechanism located at one side of the needle winding device, wherein the shifting fork mechanism comprises a shifting fork mounting plate, a shifting fork bottom plate arranged at one side of the shifting fork mounting plate, a shifting fork driving unit arranged at one side of the shifting fork bottom plate far away from the shifting fork mounting plate and a shifting fork, the shifting fork is connected with the shifting fork driving unit and is in sliding connection with one side of the shifting fork bottom plate far away from the shifting fork mounting plate, one end of the shifting fork is provided with a fork opening, the shifting fork driving unit is used for driving the shifting fork to move towards a direction approaching or far away from the needle winding device so as to fork the positioning rod and the swinging rod through the fork opening or release the positioning rod and the swinging rod, when the positioning rod and the swinging rod are forked through the fork opening, one end of the positioning rod far away from the connecting seat extends out of the fork opening, a positioning rod bearing is in contact with one inner wall of the fork opening, a swinging rod bearing is in contact with the other inner wall of the fork opening, and the swinging rod bearing is abutted against the other side wall of the fork opening.
7. The needle winding device according to claim 6, wherein the fork mechanism further comprises a laser sensor disposed on a side of the fork base plate remote from the fork mounting plate, the laser sensor being configured to detect the presence or absence of the detent lever.
8. The needle roller assembly of claim 1, wherein the slide bearing is an oil free bushing.
9. The needle winding device according to claim 1, wherein a gap is formed between the bottom plate and the movable mounting seat, a through groove is formed in one side, close to the movable mounting seat, of the bottom plate, a rolling mounting seat is arranged in the through groove, and the rolling body is located in the through groove and arranged on the rolling mounting seat.
10. The needle winding device according to claim 1, wherein the movable mounting seat is provided with a guide fastener, and one end of the guide fastener is movably inserted into the guide hole of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310553398.0A CN116470157A (en) | 2023-05-17 | 2023-05-17 | Rolling needle device with variable rolling diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310553398.0A CN116470157A (en) | 2023-05-17 | 2023-05-17 | Rolling needle device with variable rolling diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116470157A true CN116470157A (en) | 2023-07-21 |
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ID=87177174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310553398.0A Pending CN116470157A (en) | 2023-05-17 | 2023-05-17 | Rolling needle device with variable rolling diameter |
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| Country | Link |
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| CN (1) | CN116470157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039109A (en) * | 2023-10-09 | 2023-11-10 | 长春汽车工业高等专科学校 | Winding equipment for new energy automobile battery production |
-
2023
- 2023-05-17 CN CN202310553398.0A patent/CN116470157A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039109A (en) * | 2023-10-09 | 2023-11-10 | 长春汽车工业高等专科学校 | Winding equipment for new energy automobile battery production |
| CN117039109B (en) * | 2023-10-09 | 2023-12-08 | 长春汽车工业高等专科学校 | Winding equipment for new energy automobile battery production |
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