CN110707352A

CN110707352A - Pole piece folding and rubberizing device, machining method thereof and electric core winding machine

Info

Publication number: CN110707352A
Application number: CN201911064696.3A
Authority: CN
Inventors: 曹海霞; 杨琪; 杨达奇; 梁振辉
Original assignee: Zhuhai Higrand Technology Co Ltd
Current assignee: Zhuhai Higrand Technology Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-01-17

Abstract

The invention provides a pole piece folding and rubberizing device and a processing method thereof as well as an electric core winding machine, wherein the pole piece folding and rubberizing device comprises a clamping piece unit for clamping a pole piece; the cutting unit is used for cutting the pole piece into a first pole segment and a second pole segment; the overturning unit is used for overturning a part of the first pole piece section close to the second pole piece section; the shaping unit is used for pressing and shaping a bent part formed by overturning the first pole piece section to enable the first pole piece section to form a pole lug part and a pole piece part; and the rubberizing unit is used for rubberizing the second pole segment and the turned first pole segment, so that the first pole segment and the second pole segment form a new pole piece whole again. A processing method of the pole piece folding and rubberizing device and an electric core winding machine provided with the pole piece folding and rubberizing device. The electric core winding machine, the pole piece folding and rubberizing device and the processing method of the pole piece folding and rubberizing device provided by the invention can be used for folding and processing pole pieces, so that a part of each pole piece forms a pole lug.

Description

Pole piece folding and rubberizing device, machining method thereof and electric core winding machine

Technical Field

The invention relates to the technical field of battery cell production equipment, in particular to a pole piece folding and rubberizing device, a processing method of the pole piece folding and rubberizing device and a battery cell winding machine provided with the pole piece folding and rubberizing device.

Background

In recent years, with the rapid development of the lithium battery industry, the lithium battery has become the most widely used battery for the current portable electronic devices, and due to the unique properties of high energy density, light weight, large construction flexibility and the like, the lithium battery gradually replaces the nickel-cadmium rechargeable battery. However, with the continuous improvement of the performance requirements of high-end digital lithium batteries and power batteries, the manufacturing requirements of lithium batteries are more and more strict.

At present, the pole piece and the utmost point ear of lithium cell are two individuals that independently exist, in the lithium cell production process, adopt ultrasonic welding technique or laser welding technique will cut the utmost point ear welding on the pole piece usually to fix pole piece and utmost point ear together and make between the two realize the electricity and connect, however, the problem that this kind of processing technology exists is:

first, persist the burr on the utmost point ear of cutting out easily, lead to when the utmost point ear is fixed to the pole piece on the back, the diaphragm is impaled to the burr easily, causes the positive pole piece and the negative pole piece of lithium cell to take place the short circuit to make the short circuit appear in the lithium cell.

Secondly, when the condition of desoldering appears between utmost point ear and the pole piece, can lead to the unable normal use of the lithium cell of rolling out.

Thirdly, in the production process of the lithium battery cell, besides the pole piece material roll, a tab material roll needs to be additionally configured for matching processing, so that production materials are increased, and the production cost is improved.

Disclosure of Invention

In order to solve the above problems, the present invention provides a pole piece folding and gluing device capable of folding and gluing a pole piece so that a part of the pole piece itself forms a pole tab.

The invention also aims to provide a processing method of the pole piece folding and rubberizing device.

The invention further aims to provide the electric core winding machine provided with the pole piece folding and rubberizing device.

In order to achieve the main object of the present invention, the present invention provides a pole piece folding and rubberizing device, comprising a clamping piece unit, a turning unit, a cutting unit, a shaping unit and a rubberizing unit, wherein the clamping piece unit comprises a first clamping mechanism and a second clamping mechanism, a clamping area is formed between the first clamping mechanism and the second clamping mechanism, the turning unit comprises a rotary driving mechanism and a third clamping mechanism, the rotary driving mechanism drives the third clamping mechanism to turn over between a first position and a second position, a rotary axis of the third clamping mechanism is inclined to a first connecting line between the first clamping mechanism and the second clamping mechanism, the third clamping mechanism has a first executing end, in the first position, the first executing end is located in the clamping area, in the second position, the first executing end is located outside the clamping area, the cutting unit has a second executing end, the second executing end is located between the first clamping mechanism and the first executing end, the second execution end can move into the clamping area, the shaping unit is provided with a third execution end, the third execution end is located between the second execution end and the second clamping mechanism, the third execution end can move into the clamping area, the rubberizing unit is provided with a fourth execution end, and the fourth execution end can move into the clamping area.

It can be seen from above that, the clamping piece unit presss from both sides tight the pole piece, the unit of tailorring cuts into two sections with the pole piece that is pressed from both sides tightly, and the upset unit is with the one end upset of one of them section pole piece to second position department from first position department, and the setting unit is pressed the design to the crooked department that forms when the pole piece overturns, makes this section pole piece turn over and become utmost point ear portion and pole piece portion to make partly overlap between utmost point ear portion and the pole piece portion, and rubberizing unit pastes two sections pole pieces together, makes two sections pole pieces form a whole again. The pole piece folding and gluing device can fold and machine a part of a pole piece so that the part of the pole piece forms a pole lug.

Preferably, the clip unit further comprises a first drive mechanism that drives the first clamping mechanism to move towards or away from the second clamping mechanism along the first connection line.

Therefore, the first driving mechanism can drive the first clamping mechanism to move towards the second clamping mechanism, so that the distance between the two cut pole pieces is reduced during rubberizing treatment, and the reformed pole piece is more compact.

Another preferred scheme is that the rotation driving mechanism comprises a first motor and a connecting seat, a motor shaft of the first motor is arranged obliquely to a first connecting line, the connecting seat is fixedly connected with the motor shaft, the connecting seat is provided with an installation surface, and the motor shaft is arranged obliquely to the installation surface; the third clamping mechanism comprises a first pneumatic finger and two clamping arms, the first pneumatic finger is arranged on the mounting surface, the two clamping arms are respectively arranged on the two clamping fingers of the first pneumatic finger, and a first execution end is formed between the two clamping arms; the overturning unit further comprises an X-axis driving mechanism and a Y-axis driving mechanism, the output end of the X-axis driving mechanism is connected with the rotary driving mechanism, the X-axis driving mechanism drives the rotary driving mechanism to move along the X axis, the X axis is parallel to the first connecting line, the output end of the Y-axis driving mechanism is connected with the X-axis driving mechanism, the Y-axis driving mechanism drives the X-axis driving mechanism to move along the Y axis, and the Y axis is perpendicular to the X axis.

Therefore, the motor is adopted to drive the third clamping mechanism to turn over, so that the instant impact generated when the third clamping mechanism turns over can be reduced, the turning quality of the pole piece is ensured, the first position and the second position of the third clamping mechanism do not overlap due to the arrangement of the connecting seat, an included angle can be formed between the pole lug part and the pole piece part of the turned pole piece, and the pole lug part can extend out of the pole piece part; the pneumatic finger is used as a driving source of the third clamping mechanism, so that the third clamping mechanism is simpler in structure and smaller in occupied space, the clamping arm can avoid other processing units, the pole piece can be turned over in a smaller action range, and the turning of the pole piece is more reliable; the X-axis driving mechanism and the Y-axis driving mechanism can adjust the position of the third clamping mechanism, so that the turnover unit can be suitable for turnover processing of pole pieces of different specifications, and the mechanism layout of the pole piece turnover rubberizing device is optimized.

In another preferred embodiment, the cutting unit includes a cutting mechanism and a second driving mechanism, the cutting mechanism includes a cutting knife, the cutting knife has a second execution end, an output end of the second driving mechanism is connected to the cutting mechanism, and the second driving mechanism can drive the cutting knife to move into the clamping area.

It can be seen from above that, second actuating mechanism is used for driving cutting mechanism and removes relatively the pole piece to when needs are tailor the pole piece, drive cutting mechanism is tailor the pole piece, when need not to tailor the pole piece, drive cutting mechanism dodges other processing units.

Another preferred scheme is that the shaping unit comprises a shaping mechanism and a third driving mechanism, the shaping mechanism comprises two shaping blocks which can move towards or away from each other, a third execution end is formed between the two shaping blocks, the output end of the third driving mechanism is connected with the shaping mechanism, and the third driving mechanism can drive the two shaping blocks to move into the clamping area.

It can be seen from above that, the third actuating mechanism is used for driving the setting mechanism to move relative to the bending of the turned pole piece, so that the shape of the bent part of the turned pole piece is determined when the bent part is required, the setting mechanism is driven to set the bent part, and when the bent part is not required to be set, the setting mechanism is driven to avoid other processing units.

The shaping unit further comprises a positioning mechanism and a fourth driving mechanism, the positioning mechanism is located between the shaping mechanism and the second clamping mechanism, the positioning mechanism comprises two clamping positioning blocks capable of moving towards or away from each other, the output end of the fourth driving mechanism is connected with the positioning mechanism, and the fourth driving mechanism can drive the two clamping positioning blocks to move into the clamping area.

Therefore, the positioning mechanism and the fourth driving mechanism are arranged to position the turned pole piece, and therefore the turning and folding processing of the pole piece can be more reliable.

Another preferred scheme is that the rubberizing unit includes rubberizing mechanism and is equipped with gluey mechanism, and the rubberizing mechanism includes rubberizing seat and first drive assembly, and the output and the rubberizing seat of first drive assembly are connected, and the rubberizing seat has the fourth execution end, and first drive assembly drive rubberizing seat removes to the clamping area in, is equipped with gluey mechanism and to the rubberizing seat material loading.

It can be seen from above that, it is used for backing up the sticky tape to the rubberizing seat to be equipped with gluey mechanism to when needing to carry out rubberizing to two sections pole pieces, rubberizing seat can in time be driven to the pole piece removal to the first drive assembly of rubberizing mechanism, in order to laminate two sections pole pieces into an organic whole, first drive assembly still is used for driving the rubberizing seat when non-rubberizing state and dodges other processing units.

The clamping area, the first position and the second position are located on the same plane, a second connecting line is formed between the first execution end and the overturning point of the first execution end at the first position, a third connecting line is formed between the first execution end and the overturning point at the second position, and an included angle formed between the projection of the second connecting line and the projection of the third connecting line is 60-120 degrees in projection on the plane.

It is thus clear that through the setting to primary importance and second place for the upset unit can be to the partly upset of predetermineeing the angle of pole piece, thereby makes partly ability by processing into utmost point ear of this pole piece self.

In order to achieve another purpose of the invention, the invention provides a processing method of a pole piece folding and rubberizing device, wherein the pole piece folding and rubberizing device is the pole piece folding and rubberizing device, and the processing method comprises the steps of clamping a pole piece by a first clamping mechanism and a second clamping mechanism; the rotary driving mechanism drives the third clamping mechanism to overturn to a first position, so that the first execution end clamps the pole piece, the second execution end of the cutting unit moves towards the pole piece and cuts the pole piece into a first pole segment and a second pole segment, and the second execution end resets; the rotary driving mechanism drives the third clamping mechanism to overturn to a second position, so that the first executing end clamps a part of the first pole piece section close to the second pole piece section for overturning; the third execution end moves to a bent part formed after the first pole piece section is turned over, the bent part is shaped, so that a pole ear part and a pole piece part are formed on the first pole piece section, the pole ear part and the pole piece part are partially overlapped, and the third execution end resets; and the fourth execution end moves into the clamping area, and the second pole segment and the folded first pole piece segment are subjected to rubberizing treatment, so that the first pole segment and the second pole segment form a whole again.

Therefore, the processing method can effectively and reliably turn over a part of the pole piece to be used as the pole lug, so that the pole piece does not need to be additionally provided with a pole lug material roll in the pole piece processing process, the pole lug is not required to be cut, welded and the like, the processing steps of the pole piece are simplified, the risk that the pole piece is pierced by burrs attached to the pole lug can be eliminated, and the production cost of the battery is reduced.

In order to achieve another object of the present invention, the present invention provides an electric core winding machine, which includes the above pole piece folding and rubberizing device.

It is from top to bottom visible, be provided with above-mentioned pole piece and turn over a gluey device's electric core winder can be effective, reliable turns over a partly of pole piece self and turns over in order to use as utmost point ear, make the pole piece course of working need not to coil for the pole piece additional configuration utmost point ear material, and need not to carry out utmost point ear and cut, manufacturing procedure such as utmost point ear welding, the processing step of pole piece has been simplified, the risk that the pole piece was impaled by the subsidiary burr of utmost point ear can also be eliminated simultaneously, the manufacturing cost of battery is reduced, this electric core winder can also keep continuous automated production.

Drawings

FIG. 1 is a structural diagram of an embodiment of a pole piece folding and rubberizing device of the invention.

FIG. 2 is a connection structure diagram of a first clamping mechanism and a first driving mechanism of the pole piece folding and rubberizing device of the invention.

FIG. 3 is a first omitted part of the components of the pole piece folding and gluing device of the present invention.

FIG. 4 is a structural diagram of a turning unit of an embodiment of the pole piece folding and rubberizing device of the invention.

Fig. 5 is an enlarged view at a in fig. 4.

FIG. 6 is a second omitted part of the embodiment of the pole piece folding and gluing device of the invention.

FIG. 7 is a partial view of a third omitted part of an embodiment of the pole piece folding and gluing device of the present invention.

FIG. 8 is a partial view of a fourth embodiment of the pole piece folding and taping device of the present invention in a third operating state with some components omitted.

FIG. 9 is a structural diagram of a shaping unit of an embodiment of the pole piece folding and rubberizing device of the invention.

FIG. 10 is a structural diagram of a cutting unit of an embodiment of the pole piece folding and rubberizing device of the invention.

FIG. 11 is a structural diagram of a rubberizing unit of an embodiment of the pole piece folding and rubberizing device of the invention.

FIG. 12 is a schematic diagram of a third clamping mechanism in a pole piece folding and rubberizing device according to an embodiment of the present invention in a first position and a second position.

Fig. 13 is a partial structural view of a fifth working state of the pole piece folding and rubberizing device of the embodiment of the invention, with some components omitted.

Fig. 14 is a partial structural view of a sixth working state of the pole piece folding and rubberizing device of the embodiment of the invention, with partial components omitted.

Fig. 15 is a partial structural view of a fourth working state of the pole piece folding and pasting device in the sixth embodiment of the invention with part of components omitted.

Fig. 16 is a partial structural view of a fifth working state of the pole piece folding and rubberizing device according to the embodiment of the present invention, with part of components omitted.

Fig. 17 is a partial structural view of a sixth working state of the pole piece folding and gluing device according to the embodiment of the invention, with part of components omitted.

The invention is further described with reference to the following figures and examples.

Detailed Description

Pole piece turns over rubberizing device embodiment:

referring to fig. 1, a pole piece folding and rubberizing device 100 includes a clamping piece unit 1, an overturning unit 2, a shaping unit 3, a cutting unit 4 and a rubberizing unit 5, wherein the clamping piece unit 1 is used for clamping a pole piece 10, so that the cutting unit 4 cuts the pole piece 10 into a first pole piece 101 and a second pole piece 102, the overturning unit 2 overturns a part of the cut first pole piece 101, and cooperates with the shaping unit 3 to press and shape a bending portion of the overturned first pole piece 101, so that the first pole piece 101 is overturned to form a pole ear portion and a pole piece portion, so as to achieve the purpose of using a part of the first pole piece 101 as a pole ear, and finally, the rubberizing unit 5 re-affixes the second pole piece 102 and the overturned first pole piece 101 with an adhesive tape to form a new pole piece whole, so that the new pole piece whole can satisfy continuity, continuity and reliability of an electrical core winding machine, And (4) the production requirement of automatic winding.

With reference to fig. 2 and 3, the clip unit 1 includes a first clamping mechanism 11, a second clamping mechanism 12 and a first driving mechanism 13, the first clamping mechanism 11 and the second clamping mechanism 12 are both used for clamping the pole piece 10, so that the cutting unit 4 can reliably cut the pole piece 10, and a clamping area is formed between the first clamping mechanism and the second clamping mechanism, and the clamping area is an area where the pole piece 10 is clamped.

Specifically, the first clamping mechanism 11 includes a second pneumatic finger 111 and two first clamping blocks 112, and one first clamping block 112 is mounted on one clamping finger of the second pneumatic finger 111, so that the second pneumatic finger 111 can drive the two first clamping blocks 112 to move towards or away from each other to clamp or release the pole piece 10. The second clamping mechanism 12 comprises a third pneumatic finger 121 and two second clamping blocks 122, and similarly, one second clamping block 122 is mounted on one clamping finger of the third pneumatic finger 121, so that the third pneumatic finger 121 can drive the two second clamping blocks 122 to move towards or away from each other to clamp or release the pole piece 10. The first block 112 of the first clamping mechanism 11 and the second block 122 of the second clamping mechanism 12 are disposed opposite to each other.

The first driving mechanism 13 is used for driving the first clamping mechanism 11 to face or back to the second clamping mechanism 12, so that when the first pole segment 101 and the second pole segment 102 are attached, the distance between the first pole segment 101 and the second pole segment 102 can be reduced, and the whole new pole piece formed after the attachment can be more compact. The first driving mechanism 13 preferably includes a first mounting seat 131, a second driving assembly 132 and a first sliding seat 133, a first guide 1311 is disposed on the first mounting seat 131, and the first guide 1311 is parallel to a first connecting line L1 (see fig. 8) formed between the first clamping mechanism 11 and the second clamping mechanism 12, that is, the first guide 1311 is parallel to a connecting line formed between the first clamping block 112 and the second clamping block 122. First slide shoe 133 is slidably mounted on first rail 1311 along first rail 1311 in the direction of extension, and first clamping mechanism 11 is fixedly mounted on first slide shoe 133. The second driving assembly 132 is configured to drive the first sliding seat 133 to slide along the first guiding rail 1311, the second driving assembly 132 preferably includes a second motor 1321 and a first ball screw 1322, the second motor 1321 is mounted on the first mounting seat 131, a motor shaft of the second motor 1321 is coaxially disposed with the screw of the first ball screw 1322 and is fixedly connected with the screw of the first ball screw 1322, the screw of the first ball screw 1322 is parallel to the first guiding rail 1311, and a nut of the first ball screw 1322 is fixedly connected with the first sliding seat 133.

Preferably, the clip unit 1 may further include another driving mechanism to drive the second clamping mechanism 12 to move relative to the first clamping mechanism 11, wherein the driving mechanism may refer to the first driving mechanism 13, and therefore, the description thereof is omitted.

Referring to fig. 4 to 8, the reversing unit 2 includes a rotary driving mechanism 21, a third clamping mechanism 22, an X-axis driving mechanism 23, and a Y-axis driving mechanism 24, the rotary driving mechanism 21 is configured to drive the third clamping mechanism 22 to reverse between a first position and a second position, and a rotary axis Lx of the third clamping mechanism 22 is inclined to a first connection line L1 formed between the first clamping mechanism 11 and the second clamping mechanism 12. The third clamping mechanism 22 is configured to clamp an end of the first pole segment 101 close to the second pole segment 102, and cooperate with the driving of the rotation driving mechanism 21 to flip a portion of the first pole segment 101, the third clamping mechanism 22 has a first executing end, and the third clamping mechanism 22 clamps the pole piece 10 through the first executing end, where in the first position, the first executing end is located in the clamping area, and in the second position, the first executing end is located outside the clamping area, so that the flipped first pole segment 101 can form a pole ear portion and a pole piece portion after being shaped by the shaping unit 3, and meanwhile, the pole ear portion and the pole piece portion are partially overlapped.

Specifically, the swing driving mechanism 21 includes a first motor 211 and a connection base 212, and the first motor 211 is preferably a servo motor. The motor shaft of the first motor 211 is inclined with respect to the first line L1, and the axis of the motor shaft of the first motor 211 is the rotation axis Lx of the third clamping mechanism 22. The connecting base 212 is fixedly connected with the motor shaft of the first motor 211, the connecting base 212 has a mounting surface 2121, the third clamping mechanism 22 is mounted on the mounting surface 2121, and the motor shaft of the first motor 211 is obliquely arranged with the mounting surface 2121. In the present embodiment, when the third clamping mechanism 22 is in the first position, the mounting surface 2121 is parallel to the first line L1, and the angle a between the rotation axis Lx and the first line L1 is 45 °.

The third clamping mechanism 22 includes a first pneumatic finger 221 and two clamping arms 222, the first pneumatic finger 221 is mounted on the mounting surface 2121, and one clamping arm 222 is fixedly connected to one clamping finger of the first pneumatic finger 221. The clamping arms 222 have a mounting portion 2221 and a clamping portion 2222, the clamping arms 222 are mounted on the clamping fingers of the first pneumatic finger 221 through the mounting portion 2221, and the clamping portions 2222 of the two clamping arms 222 form the first actuating end therebetween, that is, the clamping portions 2222 of the two clamping arms 222 cooperate to clamp or release the first pole segment 101. In addition, an included angle b is formed between the clamping portion 2222 and the mounting portion 2221, and the included angle b is preferably 60 ° to 120 °, in this embodiment, the included angle b between the clamping portion 2222 and the mounting portion 2221 is 90 °, so that the included angle is formed between the clamping portion 2222 and the mounting portion 2221, so that the clamping arm 222 can perform an avoiding function on other processing units, and the third clamping mechanism 22 can turn over the first pole segment 101 with a small action amplitude, and the turning over of the first pole segment 101 is more reliable.

The X-axis driving mechanism 23 preferably includes a second mounting seat 231, a third driving assembly 232 and a second sliding seat 233, and a second guide rail is disposed on the second mounting seat 231, and is preferably parallel to the first connection line L1, and in this case, the second guide rail is regarded as the X-axis. The second sliding seat 233 is slidably mounted on the second guide rail along the extending direction of the second guide rail, and the swing driving mechanism 21 is fixedly mounted on the second sliding seat 233. The third driving assembly 232 is configured to drive the second sliding seat 233 to slide along the second guide rail, the third driving assembly 232 preferably includes a third motor 2321 and a second ball screw 2322, the third motor 2321 is mounted on the second mounting seat 231, a motor shaft of the third motor 2321 is coaxially disposed with the screw of the second ball screw 2322 and is fixedly connected to the screw of the second ball screw 2322, the second ball screw 2322 is parallel to the second guide rail, and a nut of the second ball screw 2322 is fixedly connected to the second sliding seat 233.

The Y-axis driving mechanism 24 preferably includes a third mounting base 241, a fourth driving assembly 242 and a third sliding base 243, wherein the third mounting base 241 is provided with a third guide rail perpendicular to the second guide rail, and in this case, the third guide rail is regarded as the Y-axis. The third sliding seat 243 is slidably installed on the third rail along the extending direction of the third rail, and the second installation seat 231 is fixedly installed on the third sliding seat 243. The fourth driving assembly 242 is configured to drive the third sliding seat 243 to slide along the third guide rail, the fourth driving assembly 242 preferably includes a fourth motor 2421 and a third ball screw 2422, the fourth motor 2421 is mounted on the third mounting seat 241, a motor shaft of the fourth motor 2421 is coaxially disposed with the screw of the third ball screw 2422 and is fixedly connected with the screw of the third ball screw 2422, the third ball screw 2422 is parallel to the second guide rail, and a nut of the third ball screw 2422 is fixedly connected with the third sliding seat 243. The X-axis driving mechanism 23 and the Y-axis driving mechanism 24 can adjust the positions of the rotation driving mechanism 21 and the third clamping mechanism 22 thereon, so that the turnover unit 2 can be suitable for turnover processing of pole pieces 10 of different specifications, and the structural layout of the pole piece turnover rubberizing device 100 is more optimized.

Referring to fig. 9, the shaping unit 3 is disposed between the first clamping mechanism 11 and the second clamping mechanism 12, and the shaping unit 3 includes a shaping mechanism 31, a third driving mechanism 32, a positioning mechanism 33, and a fourth driving mechanism 34. The shaping mechanism 31 is used for pressing and shaping the bent portion of the first pole segment 101 flipped by the rotary driving mechanism 21 and the third clamping mechanism 22, specifically, the shaping mechanism 31 includes two shaping blocks 311 and a fourth pneumatic finger 312, one shaping block 311 is fixedly mounted on one clamping finger of the fourth pneumatic finger 312, so that the fourth pneumatic finger 312 can drive the two shaping blocks 311 to move towards or away from each other, so as to press and shape or release the bent portion of the first pole segment 101. Wherein, a third execution end is formed between the two shaped blocks 311.

The third driving mechanism 32 is configured to drive the two shape-defining blocks 311 of the shape-defining mechanism 31 to move to a third position, the third position is located in the clamping area, and the third position is also a position where the first pole segment 101 bends after being flipped, and the bend of the first pole segment 101 is pressed and defined by the two shape-defining blocks 311 of the shape-defining mechanism 31 at the third position, that is, the bend forms a fold, so that the first pole segment 101 is flipped to form the pole ear portion and the pole piece portion. The third driving mechanism 32 preferably includes a fourth mounting seat 321, a first air cylinder 322 and a fourth sliding seat 323, the first air cylinder 322 is mounted on the fourth mounting seat 321, a rod body of the first air cylinder 322 is perpendicular to the first connection line L1 and is disposed toward the clamping area, the fourth sliding seat 323 is fixedly connected with the rod body of the first air cylinder 322, and the shaping mechanism 31 is mounted on the fourth sliding seat 323, so that the first air cylinder 322 can drive the two shaping blocks 311 of the shaping mechanism 31 to move to the clamping area to press and shape the turned first pole segment 101. Preferably, the second clamping mechanism 12 is mounted on the fourth mounting seat 321.

The positioning mechanism 33 is located between the shaping mechanism 31 and the second clamping mechanism 12, the positioning mechanism 33 includes two clamping and positioning blocks 331 and a fifth pneumatic finger 332, one clamping and positioning block 331 is fixedly mounted on one clamping finger of the fifth pneumatic finger 332, so that the fifth pneumatic finger 332 can drive the two clamping and positioning blocks 331 to move towards or away from each other, so as to clamp or release the first pole segment 101. Wherein, a fifth execution end is formed between the two clamping and positioning blocks 331. The positioning mechanism 33 is used for assisting the rotation driving mechanism 21 and the third clamping mechanism 22 to turn over the first pole segment 101, so as to improve the turning success rate of the first pole segment 101, and meanwhile, the positioning mechanism 33 is also used for assisting the shaping mechanism 31 to shape the bent part formed by turning over the first pole segment 101, so as to improve the turning yield of the first pole segment 101.

The fourth driving mechanism 34 is configured to drive the two clamping and positioning blocks 331 of the positioning mechanism 33 to move to a fourth position, the fourth position is located in the clamping area, the fourth position is located between the second clamping mechanism 12 and the third position, and the fourth position is adjacent to the third position. The fourth driving mechanism 34 includes a second cylinder 341 and a fifth sliding seat 342, the second cylinder 341 is installed on the fourth installation seat 321, a rod body of the second cylinder 341 is parallel to a rod body of the first cylinder 322, the fifth sliding seat 342 is fixedly connected with the rod body of the second cylinder 341, and the positioning mechanism 33 is installed on the fifth sliding seat 342, so that the second cylinder 341 can drive the two clamping and positioning blocks 331 of the positioning mechanism 33 to move to a fourth position, that is, to a clamping area, so as to assist the rotation driving mechanism 21 and the third clamping mechanism 22 to turn over the first pole segment 101; the auxiliary shaping mechanism 31 shapes the bend formed by the first pole segment 101 being flipped.

Referring to fig. 10, the cutting unit 4 includes a cutting mechanism 41 and a second driving mechanism 42. The second driving mechanism 42 preferably includes a fifth mounting seat 421, a third air cylinder 422 and a sixth sliding seat 423, wherein the third air cylinder 422 is fixedly mounted on the fifth mounting seat 421, a rod body of the third air cylinder 422 is parallel to a rod body of the first air cylinder 322, and the sixth sliding seat 423 is fixedly connected to the rod body of the third air cylinder 422, so that the third air cylinder 422 can drive the sixth sliding seat 423 to move toward the clamping area. The cutting mechanism 41 includes a cutting tool 411 and a fifth driving assembly 412, in this embodiment, the cutting tool 411 is a pair of scissors, the second driving mechanism 42 is a fourth cylinder, wherein a first handle of the pair of scissors is mounted on the sixth sliding seat 423, the fourth cylinder is mounted on the sixth sliding seat 423, a rod body of the fourth cylinder is hinged to a second handle of the pair of scissors, and the fourth cylinder is used for driving the pair of scissors to open and close so as to cut the pole piece 10. Wherein a second actuating end is formed between two oppositely arranged cutting heads of the scissors, the second actuating end is positioned between the first actuating ends of the first clamping mechanism 11 and the third clamping mechanism 22, and the third actuating end of the shaping mechanism 31 is positioned between the second actuating end and the second clamping mechanism. The second driving mechanism 42 is used to drive the two cutting heads of the cutting knife 411 to move to a fifth position, which is located in the clamping area, so that the cutting mechanism 41 cuts the pole piece 10 in the clamping area into the first pole segment 101 and the second pole segment 102.

With reference to fig. 11, the gluing unit 5 includes a gluing mechanism 51 and a glue preparing mechanism 52, the glue preparing mechanism 52 is configured to backup a tape on the gluing mechanism 51, so that the gluing mechanism 51 fits the second pole segment 102 and the folded first pole segment 101 together through the tape, the first pole segment 101 and the second pole segment 102 form a new pole piece whole, and the newly formed pole piece whole can meet the continuous and automatic production requirements of the electric core winder.

The rubberizing mechanism 51 comprises a rubberizing seat 511 and a first driving component 512, wherein an air hole is formed in one surface of the rubberizing seat 511 facing the clamping area, and an air inlet port communicated with the air hole is formed in the rubberizing seat 511, so that when the air inlet port is ventilated, negative pressure can be formed at the air hole in the rubberizing seat 511, and an adhesive tape backed up by the adhesive preparing mechanism 52 is adsorbed on the rubberizing seat 511. Wherein, the side of the rubberizing seat 511 provided with the air hole is a fourth execution end.

The first driving assembly 512 is configured to drive the adhesive applying base 511 to move to a sixth position, the sixth position is located in the clamping area, that is, when the first driving assembly 512 is configured to drive the adhesive applying base 511 to move to the sixth position, one surface of the adhesive applying base 511, which is provided with the air holes, is attached to the first pole segment 101 and the second pole segment 102, so as to bond the first pole segment 101 and the second pole segment 102 into a whole. In this embodiment, the first driving assembly 512 is a fifth cylinder, a rod body of the fifth cylinder is disposed perpendicular to the clamping area, that is, the rod body of the fifth cylinder is disposed perpendicular to the pole piece 10, and the adhesive applying base 511 is fixedly mounted on the rod body of the fifth cylinder.

The glue preparing mechanism 52 comprises an unwinding glue opening assembly 521, a glue clamping assembly 522, a cutting assembly 523 and a sixth mounting base 524, wherein the sixth mounting base 524 is provided with a fourth guide rail 5241 at the unwinding assembly, and the sixth mounting base 524 is provided with a fifth guide rail 5242 at the glue clamping assembly 522, wherein the fifth guide rail 5242 is preferably parallel to the first connection line L1. The gluing mechanism 51 is mounted on the sixth mounting base 524 and located between the glue clamping component 522 and the cutting component 523, and the cutting component 523 is located between the unwinding glue opening component 521 and the gluing mechanism 51.

The unwinding glue-stripping assembly 521 includes a tray 5211, a wheel set 5212, a slider 5213, a first pressing block 5214, a second pressing block 5215, a sixth driving assembly 5216 and a seventh driving assembly 5217. The tray 5211 is rotatably mounted on the sixth mounting seat 524 about its axis, the wheel set 5212 includes a plurality of rollers, one of the plurality of rollers is rotatably mounted on the slider 5213 about its axis, and the remaining plurality of rollers is rotatably mounted on the sixth mounting seat 524 about its axis, and a tape passage is formed between the plurality of rollers, and the tape is disposed in the tape passage after being pulled from the tray 5211. The sliding block 5213 is slidably mounted on the fourth rail 5241, and the seventh driving assembly 5217 drives the sliding block 5213 to slide along the fourth rail 5241 so as to perform the tape unwinding process on the tape roll, thereby ensuring that the tape clamping assembly 522 can smoothly pull the tape to move to the taping seat 511.

The first pressing block 5214 and the second pressing block 5215 are both disposed at the end of the tape channel, the first pressing block 5214 is fixedly mounted on the sixth mounting seat 524, and the second pressing block 5215 is fixedly connected to the output end of the sixth driving assembly 5216, so that the sixth driving assembly 5216 can drive the second pressing block 5215 to move towards the first pressing block 5214. The first pressing block 5214 and the second pressing block 5215 are used to fix the ends of the adhesive tape, so as to ensure that the adhesive tape clamping assembly 522 can pull the adhesive tape from the unwinding glue-opening assembly 521.

The adhesive clamping assembly 522 comprises two oppositely disposed clamping jaws 5221, an eighth driving assembly 5222 and a ninth driving assembly, wherein the eighth driving assembly 5222 is slidably mounted on the fifth rail 5242, and the eighth driving assembly 5222 is used for driving the two clamping jaws 5221 to close or open, so that the two clamping jaws 5221 clamp or release the adhesive tape. The ninth driving assembly is used for driving the eighth driving assembly 5222 to move along the fifth guide rail 5242, so that the two clamping jaws 5221 pull the adhesive tape at the first pressing block 5214 onto the adhesive applying base 511.

The cutting assembly 523 includes a cutter 5231 and a sixth cylinder 5232, a rod body of the sixth cylinder 5232 is parallel to a rod body of the fifth cylinder, the cutter 5231 is fixedly mounted on the rod body of the sixth cylinder 5232, a blade portion of the cutter 5231 is disposed toward the end of the adhesive tape channel, and the sixth cylinder 5232 is used for driving the cutter 5231 to move toward the end of the adhesive tape channel so as to cut the adhesive tape.

In this embodiment, the number of rubberizing units 5 is two, and two rubberizing units 5 set up respectively in the upper and lower both sides of centre gripping region to make two rubberizing units 5 can carry out the rubberizing to the two sides of pole piece 10 respectively, thereby make the connection between first pole piece 101 and the second pole piece 102 more reliable, and avoid the pole piece section to cut off remaining burr and pierce pole piece 10 self.

Further, referring to fig. 12, the clamping area, the first position (solid line) of the third clamping mechanism 22, the second position (broken line) of the third clamping mechanism 22 are on the same plane, and when the third clamping mechanism 22 is in the first position, a second line L2 is formed between the first actuating end of the third clamping mechanism 22 and the turning point of the first actuating end; when the third clamping mechanism 22 is in the second position, a third line L3 is formed between the first actuating end and the turning point of the first actuating end. In the projection on the above plane, the angle c between the second line L2 and the third line L3 is preferably 60 ° to 120 °, and in the present embodiment, the angle c between the second line L2 and the third line L3 is 90 °. The included angle C is equal to the included angle d between the tab portion 1011 and the pole piece portion 1012 after the first pole segment 101 is folded, that is, the folded angle of the first pole segment 101.

The embodiment of the processing method of the pole piece folding and rubberizing device comprises the following steps:

the processing method of this embodiment is a method for performing folding rubberizing processing on a pole piece by using the pole piece folding rubberizing device 100 in the pole piece folding rubberizing device embodiment, and with reference to fig. 1 to 16, the processing method includes:

first, the first clamping mechanism 11 and the second clamping mechanism 12 clamp the pole piece 10, respectively, so that the pole piece 10 is located in the clamping area.

Next, as shown in fig. 13, the second driving mechanism 42 of the cutting unit 4 drives the cutting mechanism 41 to move to the clamping area, so that the two cutting heads of the cutting tool 411 move to the fifth position to prepare for cutting the pole piece 10. Subsequently, the Y-axis driving mechanism 24 drives the rotary driving mechanism 21 and the third clamping mechanism 22 to move to the clamping area, and the rotary driving mechanism 21 drives the third clamping mechanism 22 to flip to the first position, so that the clamping portions 2222 of the two clamping arms 222 of the third clamping mechanism 22 move to between the cutting tool 411 and the second clamping mechanism 12, and the clamping portions 2222 of the two clamping arms 222 clamp the pole piece 10.

Next, as shown in fig. 14, the pole piece 10 is cut by the cutting blade 411 of the cutting mechanism 41, so that the pole piece 10 forms a first pole segment 101 and a second pole segment 102. After the cutting mechanism 41 finishes cutting the pole piece 10, the second driving mechanism 42 of the cutting unit 4 drives the cutting mechanism 41 to reset, and the first driving mechanism 13 of the clamping piece unit 1 can appropriately drive the first clamping mechanism 11 to move back to the second clamping mechanism 12, so that a better avoidance space is provided for overturning the third clamping unit.

Next, as shown in fig. 8, the fourth driving mechanism 34 of the shaping unit 3 drives the positioning mechanism 33 to move to the clamping area, moves the two clamping and positioning blocks 331 of the positioning mechanism 33 to the fourth position, and causes the two clamping and positioning blocks 331 to clamp the first pole segment 101.

Next, as shown in fig. 15, the rotary driving mechanism 21 drives the third clamping mechanism 22 to flip to the second position, so that the two clamping arms 222 of the third clamping mechanism 22 clamp a portion of the first pole segment 101 close to the second pole segment 102 to flip by a preset angle. When the first pole segment 101 is flipped, the flipped portion abuts against the two clamping and positioning blocks 331 to increase the success rate of flipping the first pole segment 101. Subsequently, as shown in fig. 16, the third driving mechanism 32 drives the shaping mechanism 31 to move to the clamping area, so that the two shaping blocks 311 of the shaping mechanism 31 move to the third position, that is, the two shaping blocks 311 of the shaping mechanism 31 move to the bent part 1013 of the first pole segment 101, and then the shaping mechanism 31 presses and shapes the bent part 1013 by the two shaping blocks 311 to crease the bent part 1013, so that the first pole segment 101 forms the tab part 1011 and the pole piece part 1012, wherein the tab part 1011 and the pole piece part 1012 are partially overlapped, so that the tab part 1011 is exposed out of the pole piece part 1012, thereby achieving the purpose of turning over a part of the first pole segment 101 itself into a tab for use. After the shaping mechanism 31 completes the pressing and shaping of the bend 1013 of the first pole segment 101, the third driving mechanism 32 drives the shaping mechanism 31 to return, and the fourth driving mechanism 34 drives the positioning mechanism 33 to return.

Next, referring to fig. 17, the first driving mechanism 13 drives the first clamping mechanism 11 to move towards the second clamping mechanism 12, so that the second pole segment 102 moves towards the folded first pole segment 101 to reduce the distance between the first pole segment 101 and the second pole segment 102, and meanwhile, the glue preparing mechanism 52 of the gluing unit 5 prepares glue towards the gluing mechanism 51 to backup the adhesive tape on the gluing seat 511 of the gluing mechanism 51. Subsequently, the first taping unit 5 sticks tape to the first sides of the first pole segment 101 and the second pole segment 102, and at the same time, the second taping unit 5 sticks tape to the second sides of the first pole segment 101 and the second pole segment 102, so that the first pole segment 101 and the second pole segment 102 are reformed into a new pole piece whole for continuous and automatic production of the core winder. The glue preparation step of the gluing unit 5 is as follows, with reference to fig. 11: the clamping assembly 522 moves towards the unwinding opening assembly 521, and the two clamping jaws 5221 clamp the adhesive tape at the tail end of the adhesive tape channel; then, the adhesive clamping assembly 522 is reset to pull the adhesive tape to move towards the adhesive applying base 511 of the adhesive applying mechanism 51, so that the air holes on the adhesive applying base 511 absorb the adhesive tape on the adhesive applying base 511; then, the cutter 5231 of the cutting assembly 523 cuts the adhesive tape, and the adhesive clamping assembly 522 loosens the clamping of the adhesive tape, thereby completing the adhesive preparation of the adhesive applying base 511.

Electrical core winder embodiment:

the electric core winder comprises the pole piece folding and rubberizing device in the embodiment of the pole piece folding and rubberizing device, the electric core winder provided with the pole piece folding and rubberizing device can effectively and reliably fold a part of a pole piece to be used as a pole lug, so that the pole piece is not required to be additionally provided with a pole lug material roll in the pole piece machining process, the pole lug is not required to be cut, the pole lug is not required to be welded, and other machining processes, the machining steps of the pole piece are simplified, meanwhile, the risk that the pole piece is pierced by burrs attached to the pole lug can be eliminated, the production cost of a battery is reduced, and meanwhile, the electric core winder can also keep continuous automatic production.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely illustrative and not restrictive, and that various changes and modifications may be made by those skilled in the art, without departing from the spirit and scope of the invention, any and all modifications, equivalents, improvements and equivalents may be made without departing from the spirit and scope of the invention.

Claims

1. Pole piece turns over a rubberizing device, its characterized in that includes:

the clamping piece unit comprises a first clamping mechanism and a second clamping mechanism, and a clamping area is formed between the first clamping mechanism and the second clamping mechanism;

the overturning unit comprises a rotary driving mechanism and a third clamping mechanism, the rotary driving mechanism drives the third clamping mechanism to overturn between a first position and a second position, the rotary axis of the third clamping mechanism is inclined to a first connecting line between the first clamping mechanism and the second clamping mechanism, the third clamping mechanism is provided with a first execution end, the first execution end is located in the clamping area at the first position, and the first execution end is located outside the clamping area at the second position;

a cutting unit having a second actuation end, the second actuation end being located between the first clamping mechanism and the first actuation end, the second actuation end being movable into the clamping area;

a shaping unit having a third actuation end, the third actuation end positioned between the second actuation end and the second clamping mechanism, the third actuation end movable into the clamping region;

a rubberizing unit having a fourth execution end movable into the clamping area.

2. The pole piece folding and rubberizing device according to claim 1, characterized in that:

the clamping piece unit further comprises a first driving mechanism, and the first driving mechanism drives the first clamping mechanism to move towards or back to the second clamping mechanism along the first connecting line.

3. The pole piece folding and rubberizing device according to claim 1, characterized in that:

the rotary driving mechanism comprises a first motor and a connecting seat, a motor shaft of the first motor is arranged obliquely to the first connecting line, the connecting seat is fixedly connected with the motor shaft, the connecting seat is provided with an installation surface, and the motor shaft is arranged obliquely to the installation surface;

the third clamping mechanism comprises a first pneumatic finger and two clamping arms, the first pneumatic finger is installed on the installation surface, the two clamping arms are respectively installed on the two clamping fingers of the first pneumatic finger, and the first execution end is formed between the two clamping arms;

the overturning unit further comprises an X-axis driving mechanism and a Y-axis driving mechanism, the output end of the X-axis driving mechanism is connected with the rotary driving mechanism, the X-axis driving mechanism drives the rotary driving mechanism to move along the X axis, the X axis is parallel to the first connecting line, the output end of the Y-axis driving mechanism is connected with the X-axis driving mechanism, the Y-axis driving mechanism drives the X-axis driving mechanism to move along the Y axis, and the Y axis is perpendicular to the X axis.

4. The pole piece folding and rubberizing device according to claim 1, characterized in that:

the clipping unit includes:

the cutting mechanism comprises a cutting knife which is provided with the second execution end;

the output end of the second driving mechanism is connected with the cutting mechanism, and the second driving mechanism can drive the cutting tool to move into the clamping area.

5. The pole piece folding and rubberizing device according to claim 1, characterized in that:

the shaping unit includes:

the shaping mechanism comprises two shaping blocks which can move towards or away from each other, and a third execution end is formed between the two shaping blocks;

and the output end of the third driving mechanism is connected with the shaping mechanism, and the third driving mechanism can drive the two shaping blocks to move into the clamping area.

6. The pole piece folding and rubberizing device according to claim 5, characterized in that:

the shaping unit further comprises:

the positioning mechanism is positioned between the shaping mechanism and the second clamping mechanism and comprises two clamping positioning blocks which can move oppositely or back to back;

and the output end of the fourth driving mechanism is connected with the positioning mechanism, and the fourth driving mechanism can drive the two clamping positioning blocks to move into the clamping area.

7. The pole piece folding and rubberizing device according to claim 1, characterized in that:

the rubberizing unit includes:

the adhesive tape sticking mechanism comprises an adhesive tape sticking seat and a first driving assembly, the output end of the first driving assembly is connected with the adhesive tape sticking seat, the adhesive tape sticking seat is provided with a fourth execution end, and the first driving assembly drives the adhesive tape sticking seat to move into the clamping area;

and the glue preparation mechanism is used for feeding the glue sticking base.

8. The pole piece folding and rubberizing device according to any one of claims 1 to 7, characterized in that:

the clamping area, the first position and the second position are on the same plane;

in the first position, a second connecting line is formed between the first execution end and the turning point of the first execution end, in the second position, a third connecting line is formed between the first execution end and the turning point, and an included angle formed between the projection of the second connecting line and the projection of the third connecting line is 60-120 degrees in the projection on the plane.

9. A processing method of a pole piece folding and rubberizing device, wherein the pole piece folding and rubberizing device comprises the pole piece folding and rubberizing device according to any one of claims 1 to 8, and the processing method comprises the following steps:

the first clamping mechanism and the second clamping mechanism clamp the pole piece;

the rotary driving mechanism drives the third clamping mechanism to overturn to the first position, so that the first execution end clamps the pole piece, the second execution end of the cutting unit moves towards the pole piece and cuts the pole piece into a first pole piece segment and a second pole piece segment, and the second execution end resets;

the rotary driving mechanism drives the third clamping mechanism to overturn to the second position, so that the first executing end clamps a part of the first pole piece section close to the second pole piece section to overturn;

the third execution end moves to a bent part formed after the first pole piece section is turned over, the bent part is shaped, so that a pole ear part and a pole piece part are formed on the first pole piece section, the pole ear part and the pole piece part are partially overlapped, and the third execution end is reset;

and moving the fourth execution end to the clamping area, and gluing the second pole segment and the folded first pole piece segment to enable the first pole segment and the second pole segment to form a whole again.

10. An electric core winder, characterized by comprising a pole piece folding and rubberizing device according to any one of the preceding claims 1 to 8.