CN111697193A - Pole piece processing device and pole piece forming system - Google Patents
Pole piece processing device and pole piece forming system Download PDFInfo
- Publication number
- CN111697193A CN111697193A CN201910188707.2A CN201910188707A CN111697193A CN 111697193 A CN111697193 A CN 111697193A CN 201910188707 A CN201910188707 A CN 201910188707A CN 111697193 A CN111697193 A CN 111697193A
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- pole piece
- roller
- driver
- tape
- belt
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- 230000007246 mechanism Effects 0.000 claims abstract description 124
- 238000003825 pressing Methods 0.000 claims abstract description 47
- 238000005520 cutting process Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 abstract description 7
- 238000007906 compression Methods 0.000 abstract description 7
- 230000002950 deficient Effects 0.000 description 17
- 239000002390 adhesive tape Substances 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
- B26D1/065—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates for thin material, e.g. for sheets, strips or the like
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- 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
Abstract
The invention provides a pole piece processing device and a pole piece forming system. The pole piece processing device comprises a compression roller mechanism, a first tape splicing mechanism, a second tape splicing mechanism, a tape cutting mechanism and a rubberizing mechanism. The press roller mechanism comprises a first roller and a second roller which can be close to or far away from each other, and the first roller is a driving roller. The first belt splicing mechanism is arranged at the downstream of the press roller mechanism, the second belt splicing mechanism is arranged at the downstream of the first belt splicing mechanism, and the first belt splicing mechanism and the second belt splicing mechanism are arranged to be close to or far away from each other. The first tape splicing mechanism comprises a first tape splicing platform and a first pressing block, and the first pressing block is arranged on the first tape splicing platform and can move relative to the first tape splicing platform. The second tape splicing mechanism comprises a second tape splicing platform and a second pressing block, the second pressing block is arranged on the second tape splicing platform and can move relative to the second tape splicing platform, and the first tape splicing platform and the second tape splicing platform are arranged oppositely. The belt cutting mechanism is used for cutting off the pole pieces. The rubberizing mechanism is used for bonding the pole piece.
Description
Technical Field
The invention relates to the field of battery production, in particular to a pole piece processing device and a pole piece forming system.
Background
The general process of the manufacturing process of the battery pole piece comprises the following steps: (1) mixing an active substance, a binder, a conductive agent, a solvent and the like to prepare slurry, and then coating the slurry on the surface of a metal current collector to form a coating; (2) removing the solvent of the coating by baking to form a dried pole piece; (3) the coating of the pole piece is compacted by rolling, and then the pole piece is cut into a plurality of strips. However, due to the baking process and the inter-pole piece tape, the coating equipment is shut down for a period of time; and in the time of coating equipment halt, the pole piece normally walks, so that the pole piece generates a defective area. In the subsequent rolling process, the defective area of the pole piece needs to be manually cut off, so that the labor waste is caused, and the production efficiency is reduced.
Disclosure of Invention
In view of the problems in the background art, the present invention provides a pole piece processing apparatus and a pole piece forming system, which can automatically cut off the defective area of a pole piece, reduce the cost, and improve the production efficiency.
In order to achieve the purpose, the invention provides a pole piece processing device and a pole piece forming system.
The pole piece processing device comprises a compression roller mechanism, a first belt connecting mechanism, a second belt connecting mechanism, a belt cutting mechanism and a rubberizing mechanism. The compression roller mechanism comprises a first roller wheel and a second roller wheel which are oppositely arranged, the first roller wheel and the second roller wheel are arranged to be close to or far away from each other, and the first roller wheel is a driving roller. The first belt splicing mechanism is arranged at the downstream of the press roller mechanism, the second belt splicing mechanism is arranged at the downstream of the first belt splicing mechanism, and the first belt splicing mechanism and the second belt splicing mechanism are arranged to be close to or far away from each other. The first tape splicing mechanism comprises a first tape splicing platform and a first pressing block, and the first pressing block is arranged on the first tape splicing platform and can move relative to the first tape splicing platform. The second tape splicing mechanism comprises a second tape splicing platform and a second pressing block, the second pressing block is arranged on the second tape splicing platform and can move relative to the second tape splicing platform, and the first tape splicing platform and the second tape splicing platform are arranged oppositely. The tape cutting mechanism is arranged to be movable in the lateral and up-down directions and to cut the pole pieces. The rubberizing mechanism sets up in the upside of first tape splicing platform and second tape splicing platform and is used for bonding the pole piece.
The pole piece processing device further comprises a first rack and a second rack, wherein the first rack is fixed, and the second rack is arranged in a sliding mode. The first belt splicing mechanism and the compression roller mechanism are arranged on the first rack, and the second belt splicing mechanism is arranged on the second rack.
The pole piece processing device further comprises a guide rail extending along the transverse direction, and the second rack is arranged on the guide rail in a sliding mode.
The pole piece processing device further comprises a traction mechanism, and the traction mechanism is arranged on the first rack and located on the lower side of the first tape splicing platform. The traction mechanism comprises a third roller and a fourth roller which are oppositely arranged, the third roller and the fourth roller are arranged to be close to or far away from each other, and the third roller is a driving roller.
The pole piece processing device also comprises a material receiving box which is arranged at the lower side of the traction mechanism.
The pole piece processing device further comprises a tension adjusting structure, and the tension adjusting structure is arranged on the second rack and located at the downstream of the second belt splicing mechanism. The tension adjusting structure includes a fifth roller and a sixth roller that are disposed to be able to approach or separate from each other.
The tape cutting mechanism comprises a first cutter, a first driver and a second driver, wherein the first cutter is connected with the first driver, and the second driver is connected with the first driver. In one embodiment, the first driver is configured to drive the first cutter to move in the up-and-down direction, and the second driver is configured to drive the first driver to move in the transverse direction. In an alternative embodiment, the first drive is arranged to drive the first cutter in a transverse direction and the second drive is arranged to drive the first drive in an up and down direction.
The rubberizing mechanism comprises a third driver and a rubberizing component, wherein the rubberizing component is connected with the third driver and can move longitudinally under the driving of the third driver. The rubberizing subassembly includes that the sticky tape unreels roller, seventh running roller, fourth driver and second cutter, and the sticky tape unreels the roller and is used for placing the sticky tape, and the fourth driver links to each other with the seventh running roller, and the seventh running roller sets up to press the sticky tape to the pole piece on, and the second cutter is used for cutting off the sticky tape.
The pole piece processing device further comprises a detector which is arranged on the upper side of the first splicing platform and used for detecting the state of the pole piece.
The pole piece forming system comprises a pole piece unreeling device, a cold pressing slitting device and a pole piece processing device. The pole piece unwinding device is used for setting up the pole piece, and pole piece processing apparatus sets up in pole piece unwinding device's low reaches, and the device of cutting of colding pressing sets up in pole piece processing apparatus's low reaches.
The invention has the following beneficial effects: the electrode plate processing device can automatically cut off the defective area of the electrode plate, effectively saves labor, reduces cost and improves production efficiency.
Drawings
FIG. 1 is a schematic view of a pole piece molding system according to the present invention.
Fig. 2 to 7 are schematic views of the pole piece processing device according to the present invention in different working states.
Fig. 8 is a schematic view of a rubberizing mechanism of the pole piece processing device according to the present invention.
Fig. 9 is another schematic view of the rubberizing mechanism of the pole piece processing device according to the invention.
FIG. 10 is a schematic view of a pole piece.
Wherein the reference numerals are as follows:
1 Pole piece processing device 18 traction mechanism
11 compression roller mechanism 181 third roller
111 first roll 182 fourth roll
112 second roller 183 fifth drive
12 first splicing mechanism 19 tension adjusting structure
121 first splicing platform 191 and fifth roller
122 first pressing block 192 sixth roller
13 second belt splicing mechanism 193 oscillating bar
131 second splicing platform 194 sixth drive
132 second pressing block 1A material collecting box
14 belt cutting mechanism 1B detector
141 first cutter 1C guide rail
142 first driver 2 pole piece unwinding device
143 second drive 3 cold pressing slitting device
15 rubberizing mechanism 4 pole pieces
151 third driver 41 current collector
152 adhesive component 42 active substance layer
152a tape unwinding roller 5 tape
152b seventh roller S1 first surface
152c fourth driver S2 second surface
152d second cutter X transverse direction
16 first machine frame Y longitudinal direction
17 up-down direction of the second frame Z
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" is more than two (including two); the terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, it should be understood that the terms "upper" and "lower" used in the description of the embodiments of the present application are used in a descriptive sense only and not for purposes of limitation. The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
The pole piece forming system can be applied to cold pressing and cutting processes of the pole piece 4 of the battery. Referring to fig. 10, the electrode sheet 4 includes a current collector 41 and an active material layer 42 coated on a surface of the current collector 41, and the current collector 41 may be a metal foil. In the coating and baking processes of the pole piece 4, the coating equipment is shut down due to process reasons, so that partial areas of the current collector 41 are not coated with the active material layer 42, and the pole piece 4 generates a defective area of tens of meters, even hundreds of meters. The pole piece forming system can automatically cut off the defective area of the pole piece 4.
Specifically, referring to fig. 1, the pole piece forming system of the present application includes a pole piece unwinding device 2, a cold pressing slitting device 3, and a pole piece processing device 1.
The pole piece unreeling device 2 comprises a pole piece unreeling shaft, and the pole piece 4 which is subjected to coating and baking processes can be arranged on the pole piece unreeling shaft. The pole piece processing device 1 is arranged at the downstream of the pole piece unreeling device 2 and is used for cutting off the defective area of the pole piece 4. The cold pressing and cutting device 3 is arranged at the downstream of the pole piece processing device 1 and is used for rolling and cutting the pole piece 4.
The pole piece processing device 1 comprises a press roller mechanism 11, a first tape splicing mechanism 12, a second tape splicing mechanism 13, a tape cutting mechanism 14 and a rubberizing mechanism 15.
Referring to fig. 2, the press roller mechanism 11 includes a first roller 111 and a second roller 112 which are oppositely disposed, and the first roller 111 and the second roller 112 are disposed to be able to approach or separate from each other, and the first roller 111 is a driving roller.
The compression roller mechanism 11 is arranged at the downstream of the pole piece unreeling device 2. The second roller wheel 112 is fixed in position and is a driven roller, and the pole piece 4 passes through between the first roller wheel 111 and the second roller wheel 112 and is attached to the second roller wheel 112. First running roller 111 can link to each other with cylinder and motor, and the motor can drive first running roller 111 and rotate, and the cylinder can drive first running roller 111 and move to make first running roller 111 be close to or keep away from second running roller 112.
The first splicing mechanism 12 is provided downstream of the press roller mechanism 11, the second splicing mechanism 13 is provided downstream of the first splicing mechanism 12, and the first splicing mechanism 12 and the second splicing mechanism 13 are provided so as to be able to approach or separate from each other. Preferably, the first belt splicing mechanism 12 is fixed in position, and the second belt splicing mechanism 13 is directly or indirectly connected to the driving mechanism and can move under the driving of the driving mechanism.
The first splicing mechanism 12 includes a first splicing platform 121 and a first pressing block 122, and the first pressing block 122 is disposed on the first splicing platform 121 and can move relative to the first splicing platform 121. Preferably, the first pressing block 122 is preferably disposed on the upper side of the first belt splicing platform 121 along the vertical direction Z and connected to the cylinder, and the cylinder can drive the first pressing block 122 to move up and down. The pole piece 4 can pass through between the first splicing platform 121 and the first pressing block 122.
The second splicing mechanism 13 includes a second splicing platform 131 and a second pressing block 132, and the second pressing block 132 is disposed on the second splicing platform 131 and can move relative to the second splicing platform 131. Preferably, the second pressing block 132 is preferably disposed on the upper side of the second belt connecting platform 131 along the up-down direction Z and connected to the air cylinder, and the air cylinder can drive the second pressing block 132 to move up and down. The pole piece 4 can pass through between the second splicing platform 131 and the second pressing block 132.
The first splicing platform 121 and the second splicing platform 131 are oppositely arranged along the transverse direction X. The end of the first splicing platform 121 close to the second splicing platform 131 in the transverse direction X has a first surface S1, the end of the second splicing platform 131 close to the first splicing platform 121 in the transverse direction X has a second surface S2, and the first surface S1 and the second surface S2 can be attached to each other.
It is added here that the pole pieces 4 are strips which are substantially parallel to the longitudinal direction Y, the transverse direction X being perpendicular to the longitudinal direction Y. The plane formed by the transverse direction X and the longitudinal direction Y is substantially parallel to the ground. The up-down direction Z is perpendicular to the transverse direction X and the longitudinal direction Y.
The tape cutting mechanism 14 may be disposed on an upper side of the first splicing platform 121 and may be movable in the lateral direction X and the up-down direction Z.
The rubberizing mechanism 15 is arranged on the upper sides of the first tape splicing platform 121 and the second tape splicing platform 131 and used for splicing the pole pieces 4.
The processing of the pole piece 4 is described in detail below with reference to fig. 1 to 9.
(i) Referring to fig. 1 and 2, a pole piece 4 which is subjected to coating and baking processes is placed on a pole piece unreeling device 2, then the free end of the pole piece 4 is drawn to sequentially pass through a compression roller mechanism 11, a first belt splicing mechanism 12 and a second belt splicing mechanism 13 and finally enter a cold-pressing slitting device 3; and the cold pressing and cutting device 3 pulls the pole piece 4 to move and carries out cold pressing and cutting on the pole piece 4. At this time, a certain gap is left between the first roller 111 and the second roller 112 of the pressing roller mechanism 11, and the first surface S1 of the first tape connecting platform 121 and the first surface S2 of the second tape connecting platform 131 are attached to each other (of course, a small gap may exist between the two).
(ii) When it is detected that the head end of the defective area of the pole piece 4 passes through between the first pressing block 122 and the first splicing platform 121, referring to fig. 3, the first pressing block 122 moves downward and presses the pole piece 4 to the first splicing platform 121, and the second pressing block 132 moves downward and presses the pole piece 4 to the second pressing block 132, so that the pole piece 4 stops being transported. Then, the tape cutting mechanism 14 moves to the upper side of the first surface S1 in the transverse direction X, and then moves downward and cuts the pole piece 4.
(iii) Referring to fig. 4, the tape cutting mechanism 14 is retracted to an initial position. The second splicing platform 131 is far away from the first splicing platform 121 along the transverse direction X, and meanwhile, the first roller 111 moves close to the second roller 112 and presses the pole piece 4. Then, the first pressing block 122 moves upward and releases the pole piece 4, and the first roller 111 is driven by the motor to rotate, so as to drive the pole piece 4 to move forward. And under the action of gravity, the defective area of the pole piece 4 falls downward through the space between the first splicing platform 121 and the second splicing platform 131.
(iv) Referring to fig. 6, when it is detected that the tail end of the defective area of the pole piece 4 passes through between the first pressing block 122 and the first tape splicing platform 121, the first roller 111 stops rotating, the first pressing block 122 moves downward and presses the pole piece 4 to the first tape splicing platform 121, so that the pole piece 4 stops moving. Then, the tape cutting mechanism 14 moves to the upper side of the first surface S1 of the first splicing platform 121 in the transverse direction X, and then moves downward and cuts the pole piece 4, so that the defective area of the pole piece 4 is cut off.
(v) Referring to fig. 7, the tape cutting mechanism 14 is retracted to an initial position. The second splicing platform 131 moves close to the first splicing platform 121 and makes the second surface S2 fit with the first surface S1.
(vi) Referring to fig. 8 and 9, the rubberizing mechanism 15 moves to the upper side of the pole piece 4 along the longitudinal direction Y and bonds the pole piece 4 on the first taping platform 121 and the pole piece 4 on the second taping platform 131 together.
(vii) The first pressing block 122 moves away from the first tape splicing platform 121, the second pressing block 132 moves away from the first tape splicing platform 131, the first roller 111 moves away from the second roller 112, and therefore the pole piece 4 is loosened, and the pole piece 4 continues to move forwards and continues to perform cold pressing and cutting processes.
To sum up, the incomplete time region of pole piece 4 can be amputated automatically to pole piece processing apparatus 1 of this application, effectively saves the manual work, reduce cost improves production efficiency.
Referring to fig. 2, the pole piece processing apparatus 1 further includes a first frame 16 and a second frame 17, the first frame 16 is fixed on the ground, and the second frame 17 is slidably disposed on the bottom surface. The second frame 17 may be connected to a power mechanism such as an air cylinder or a motor, and may be driven by the power mechanism to move. Preferably, the pole piece processing device 1 further comprises a guide rail 1C extending along the transverse direction X, and the second frame 17 is slidably disposed on the guide rail 1C.
The first belt splicing mechanism 12 and the press roller mechanism 11 are arranged on a first machine frame 16, and the second belt splicing mechanism 13 is arranged on a second machine frame 17. In step (iii) and step (v), the power mechanism may drive the second frame 17 to slide along the guide rail 1C, so as to drive the second tape splicing platform 131 to approach or depart from the first tape splicing platform 121.
The tape cutting mechanism 14 is provided on the upper side of the first frame 16. Referring to fig. 2, the tape cutting mechanism 14 may include a first cutter 141, a first driver 142, and a second driver 143, the first cutter 141 being connected to the first driver 142, and the second driver 143 being connected to the first driver 142. The first and second drivers 142 and 143 may be air cylinders. The cylinder can guarantee that first cutter 141 cuts down fast, raises the efficiency. The second driver 143 may be fixed to the first frame 16.
In an embodiment, the first driver 142 is configured to drive the first cutter 141 to move along the up-down direction Z, and the second driver 143 is configured to drive the first driver 142 to move along the transverse direction X. In an alternative embodiment, the first driver 142 is configured to drive the first cutter 141 to move in the transverse direction X, and the second driver 143 is configured to drive the first driver 142 to move in the up-down direction Z.
The pole piece processing apparatus 1 further includes a detector 1B disposed above the first splicing platform 121 and configured to detect a state of the pole piece 4. The defective area of the pole piece 4 is basically free of the active material layer 42, so that an obvious boundary is formed between the defective area and the normal area of the pole piece 4; when the detector 1B detects that the pole piece 4 changes from the normal area to the defective area, the detector 1B transmits information to a control system, and the control system instructs the pole piece processing device 1 of the present application to operate according to the step (ii); when the detector 1B detects that the pole piece 4 changes from the defective area to the normal area, the detector 1B transmits information to the control system, and the control system instructs the pole piece processing apparatus 1 of the present application to operate according to step (iv).
Referring to fig. 2, the pole piece processing apparatus 1 further includes a drawing mechanism 18, and the drawing mechanism 18 is disposed on the first frame 16 and located at the lower side of the first splicing platform 121. The traction mechanism 18 includes a third roller 181 and a fourth roller 182 that are oppositely disposed, the third roller 181 and the fourth roller 182 are disposed so as to be able to approach or separate from each other, and the third roller 181 is a driving roller.
Preferably, the fourth roller 182 is rotatably disposed on the first housing 16 and fixed in position, and the third roller 181 is connected to the fifth driver 183. The fifth driver 183 is fixed to the first frame 16 and includes an air cylinder and a motor, the motor is configured to drive the third roller 181 to rotate, and the air cylinder is configured to drive the third roller 181 to approach or be away from the fourth roller 182.
When the pole piece 4 normally travels, the third roller 181 and the fourth roller 182 are respectively located on two sides of the first surface S1 in the transverse direction X. Referring to fig. 4, in step (iii), the pole piece 4 falls downward under the action of gravity, and the fallen pole piece 4 can pass through between the third roller 181 and the fourth roller 182. When the pole piece 4 can pass through between the third roller 181 and the fourth roller 182, referring to fig. 5, the third roller 181 is driven by the fifth driver 183 to approach the fourth roller 182, so as to clamp the pole piece 4 between the third roller 181 and the fourth roller 182; then, the fifth driver 183 drives the third roller 181 to rotate, so as to pull the pole piece 4 to move to the set position. In step (iv), when the cut-off defective region completely passes between the third roller 181 and the fourth roller 182, referring to fig. 6, the fifth driver 183 brings the third roller 181 back to the initial state.
Preferably, the pole piece processing device 1 further comprises a receiving box 1A arranged at the lower side of the drawing mechanism 18. The material collecting box 1A can collect the cut defective area, so that the waste materials can be recycled. Notches can be formed in the first frame 16 and the second frame 17 to reserve a placing space for the material receiving box 1A.
The pole piece processing device 1 further comprises a tension adjusting structure 19, and the tension adjusting structure 19 is arranged on the second frame 17 and located at the downstream of the second tape splicing mechanism 13. The tension adjusting structure 19 includes a fifth roller 191 and a sixth roller 192, and the fifth roller 191 and the sixth roller 192 are disposed to be able to approach or separate from each other.
The fifth roller 191 is rotatably disposed on the second frame 17 and fixed with respect to the second frame 17. The tension adjusting mechanism 19 further includes a swing link 193 and a sixth driver 194, the swing link 193 is rotatably connected to the second frame 17, the sixth roller 192 is rotatably connected to one end of the swing link 193, and the sixth driver 194 is connected to the other end of the swing link 193. The sixth driver 194 may be an air cylinder, and the air cylinder drives the sixth roller 192 to move through the swing rod 193.
The tension adjusting structure 19 further comprises a tension sensor for detecting the tension of the pole piece 4 in real time; when the tension of the pole piece 4 changes, the sixth driver 194 drives the sixth roller 192 to move through the swing rod 193 to change the distance between the fifth roller 191 and the sixth roller 192, so as to adjust the tension of the pole piece 4 and keep the tension constant.
The pole piece 4 sequentially passes through the second belt receiving mechanism 13, the fifth roller 191 and the sixth roller 192 and then enters the cold-pressing slitting device 3. In steps (iii) and (v), the second carriage 17 needs to be moved in the lateral direction X; the tension adjusting structure 19 of the present application can adjust the magnitude of the tension in time when the second frame 17 moves, so as to avoid the belt breakage or the deviation of the pole piece 4.
Referring to fig. 8, the gluing mechanism 15 includes a third actuator 151 and a gluing assembly 152, and the gluing assembly 152 is connected to the third actuator 151 and can move along the longitudinal direction Y under the driving of the third actuator 151. In steps (i) - (v), the rubberizing mechanism 15 is located on one side of the pole piece 4 in the longitudinal direction Y, and does not interfere with the tape cutting mechanism 14. The third driver 151 may include a motor and a screw rod, the rubberizing assembly 152 is connected to the screw rod, and the third driver 151 drives the rubberizing assembly 152 to move along the longitudinal direction Y via the screw rod.
The taping unit 152 includes a tape unwinding roller 152a, a seventh roller 152b, a fourth driver 152c, and a second cutter 152 d. The adhesive tape 5 may be disposed on the tape unwinding roller 152a, and the adhesive tape 5 may be adhered to the seventh roller 152b through several passing rollers. The fourth driver 152c is connected to the seventh roller 152b and is used for driving the seventh roller 152b to move up and down. The second cutter 152d is connected to a cylinder (not shown).
Referring to fig. 8 and 9, when it is desired to bond the pole piece 4, the third actuator 151 moves the rubberizing assemblies 152 over the pole piece 4; then the fourth driver 152c drives the seventh roller 152b to move downward, so as to press the adhesive tape 5 onto the pole piece 4; then, the third driver 151 drives the tape sticking assembly 152 to move along the longitudinal direction Y, and the adhesive tape 5 is fed along the pole piece 4 and stuck on the pole piece 4; finally, after the bonding is completed, the second cutter 152d cuts the adhesive tape 5, the fourth driver 152c drives the seventh roller 152b to move upward, and the third driver 151 moves the adhesive applying assembly 152 to the initial state.
The adhesive tape 5 is a double-sided adhesive tape, and the adhesive strength between the adhesive tape 5 and the seventh roller 152b is smaller than the adhesive strength between the adhesive tape 5 and the pole piece 4, so that the adhesive tape 5 can be separated from the seventh roller 152b and adhered to the pole piece 4.
Claims (10)
1. A pole piece processing device (1) is characterized by comprising a press roller mechanism (11), a first tape splicing mechanism (12), a second tape splicing mechanism (13), a tape cutting mechanism (14) and a rubberizing mechanism (15);
the press roller mechanism (11) comprises a first roller (111) and a second roller (112) which are oppositely arranged, the first roller (111) and the second roller (112) are arranged to be close to or far away from each other, and the first roller (111) is a driving roller;
the first belt splicing mechanism (12) is arranged at the downstream of the press roller mechanism (11), the second belt splicing mechanism (13) is arranged at the downstream of the first belt splicing mechanism (12), and the first belt splicing mechanism (12) and the second belt splicing mechanism (13) are arranged to be capable of approaching to or departing from each other;
the first belt splicing mechanism (12) comprises a first belt splicing platform (121) and a first pressing block (122), and the first pressing block (122) is arranged on the first belt splicing platform (121) and can move relative to the first belt splicing platform (121);
the second belt splicing mechanism (13) comprises a second belt splicing platform (131) and a second pressing block (132), the second pressing block (132) is arranged on the second belt splicing platform (131) and can move relative to the second belt splicing platform (131), and the first belt splicing platform (121) and the second belt splicing platform (131) are arranged oppositely;
the belt cutting mechanism (14) is arranged to be capable of moving in the transverse direction (X) and the vertical direction (Z) and used for cutting the pole piece (4);
the rubberizing mechanism (15) is arranged on the upper sides of the first tape splicing platform (121) and the second tape splicing platform (131) and used for splicing the pole pieces (4).
2. Pole piece handling device (1) according to claim 1,
the pole piece processing device (1) further comprises a first rack (16) and a second rack (17), wherein the first rack (16) is fixed, and the second rack (17) is arranged in a sliding manner;
the first belt splicing mechanism (12) and the press roller mechanism (11) are arranged on the first rack (16), and the second belt splicing mechanism (13) is arranged on the second rack (17).
3. Pole piece handling device (1) according to claim 2, characterised in that the pole piece handling device (1) further comprises a guide (1C) extending in the transversal direction (X), the second frame (17) being slidingly arranged on the guide (1C).
4. Pole piece handling device (1) according to claim 2,
the pole piece processing device (1) further comprises a traction mechanism (18), wherein the traction mechanism (18) is arranged on the first rack (16) and is positioned on the lower side of the first tape splicing platform (121);
the traction mechanism (18) comprises a third roller (181) and a fourth roller (182) which are oppositely arranged, the third roller (181) and the fourth roller (182) are arranged to be close to or far away from each other, and the third roller (181) is a driving roller.
5. The pole piece handling device (1) according to claim 4, characterised in that the pole piece handling device (1) further comprises a receiving box (1A) arranged on the underside of the drawing mechanism (18).
6. Pole piece handling device (1) according to claim 2,
the pole piece processing device (1) further comprises a tension adjusting structure (19), and the tension adjusting structure (19) is arranged on the second rack (17) and is positioned at the downstream of the second belt splicing mechanism (13);
the tension adjusting structure (19) includes a fifth roller (191) and a sixth roller (192), and the fifth roller (191) and the sixth roller (192) are disposed so as to be capable of approaching to or separating from each other.
7. Pole piece handling device (1) according to claim 1,
the tape cutting mechanism (14) comprises a first cutter (141), a first driver (142) and a second driver (143), wherein the first cutter (141) is connected to the first driver (142), and the second driver (143) is connected to the first driver (142);
the first driver (142) is arranged to drive the first cutter (141) to move along the vertical direction (Z), and the second driver (143) is arranged to drive the first driver (142) to move along the transverse direction (X); alternatively, the first driver (142) is configured to drive the first cutter (141) to move along the transverse direction (X), and the second driver (143) is configured to drive the first driver (142) to move along the up-down direction (Z).
8. Pole piece handling device (1) according to claim 1,
the rubberizing mechanism (15) comprises a third driver (151) and a rubberizing component (152), wherein the rubberizing component (152) is connected with the third driver (151) and can move along the longitudinal direction (Y) under the driving of the third driver (151);
the rubberizing subassembly (152) includes sticky tape unreel roller (152a), seventh running roller (152b), fourth driver (152c) and second cutter (152d), sticky tape unreel roller (152a) and be used for placing sticky tape (5), fourth driver (152c) link to each other with seventh running roller (152b), seventh running roller (152b) set up to be able to press sticky tape (5) to pole piece (4), second cutter (152d) are used for cutting off sticky tape (5).
9. Pole piece handling device (1) according to claim 1,
the pole piece processing device (1) further comprises a detector (1B) which is arranged on the upper side of the first tape splicing platform (121) and used for detecting the state of the pole piece (4).
10. A pole piece forming system is characterized by comprising a pole piece unreeling device (2), a cold pressing and slitting device (3) and a pole piece processing device (1) as claimed in any one of claims 1-9;
the pole piece unreeling device (2) is used for arranging a pole piece (4), the pole piece processing device (1) is arranged at the downstream of the pole piece unreeling device (2), and the cold pressing slitting device (3) is arranged at the downstream of the pole piece processing device (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188707.2A CN111697193A (en) | 2019-03-13 | 2019-03-13 | Pole piece processing device and pole piece forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910188707.2A CN111697193A (en) | 2019-03-13 | 2019-03-13 | Pole piece processing device and pole piece forming system |
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| Publication Number | Publication Date |
|---|---|
| CN111697193A true CN111697193A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910188707.2A Pending CN111697193A (en) | 2019-03-13 | 2019-03-13 | Pole piece processing device and pole piece forming system |
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| Country | Link |
|---|---|
| CN (1) | CN111697193A (en) |
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| CN115000338A (en) * | 2022-07-29 | 2022-09-02 | 楚能新能源股份有限公司 | Method for reducing rejection rate of pole pieces in lithium battery rolling process |
| WO2023029646A1 (en) * | 2021-08-31 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Removing device, pole piece processing apparatus, and removing method |
| CN116079139A (en) * | 2022-11-25 | 2023-05-09 | 广东谷菱电气有限公司 | Production facility is cut to copper bar board spare |
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