CN117445458A - Pole piece tabletting device for lithium battery production - Google Patents
Pole piece tabletting device for lithium battery production Download PDFInfo
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- CN117445458A CN117445458A CN202311405749.XA CN202311405749A CN117445458A CN 117445458 A CN117445458 A CN 117445458A CN 202311405749 A CN202311405749 A CN 202311405749A CN 117445458 A CN117445458 A CN 117445458A
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- plate
- pole piece
- connecting plate
- transmission
- mounting plate
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Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 23
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 119
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000004140 cleaning Methods 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 26
- 238000000576 coating method Methods 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 25
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 abstract description 20
- 238000003825 pressing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- 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
- H01M4/0435—Rolling or calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
- B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention discloses a pole piece tabletting device for lithium battery production, and particularly relates to the technical field related to lithium battery production devices. According to the pole piece tabletting device for lithium battery production, the distance between the two extrusion rollers is adjusted by utilizing the rotation of the double-head screw rod, so that the device can compact pole pieces with different requirements, the application range of the device is enlarged, the two extrusion rollers can rotate in opposite directions by utilizing the transmission mechanism and the tensioning mechanism, the pole pieces are conveyed, extrusion force with the same force is applied to the two sides of the pole pieces, and the efficiency and the quality of pole piece processing by the device are improved.
Description
Technical Field
The invention relates to the technical field related to lithium battery production devices, in particular to a pole piece tabletting device for lithium battery production.
Background
The lithium battery is a battery using lithium metal or lithium alloy as a positive/negative electrode material and using a nonaqueous electrolyte solution, and the pole piece is an important component of the lithium battery, but after the pole piece is coated and dried, the peel strength of a living substance and a current collector foil is very low, so that the pole piece needs to be rolled to compact and densify a pole piece particle coating so as to prevent detachment in the processes of electrolyte soaking and battery use.
Chinese patent document CN109910347B discloses a pole piece tabletting device for lithium battery production, which comprises: a storage box, a tabletting platform and a collection box; the storage box is connected with a guide rail for conveying the pole piece to change from a horizontal state to a vertical state; the pressing plate platform is provided with pressing plates which face four different directions respectively in a sliding manner, the pressing plate platform is provided with base plates which are in one-to-one correspondence with the four pressing plates, and one end of the guide rail, which is far away from the discharge hole, is positioned between the pressing plates and the base plates in the same direction; the device also comprises a driving device, the driving device drives the four pressing plates to simultaneously stretch and retract, a pole piece leak hole is formed in the tabletting platform, and a hydraulic baffle device is arranged in the pole piece leak hole; the collecting box is located under a plurality of pole piece leak holes, and four clamp plates of this scheme device through drive arrangement drive carry out the preforming work to the pole piece simultaneously to cooperate with hydraulic stop piece device, accelerate the preforming work, possess automated production, effectively save the labour, but still exist following not enoughly:
the device of the scheme can not continuously carry out compaction work on the surface coating of the polar plate, and can not remove coating particles which are carelessly stained on the pressing plate.
Disclosure of Invention
The invention mainly aims to provide a pole piece tabletting device for lithium battery production, which can effectively solve the problems that the pole piece cannot be compacted continuously and coating particles stained on a pressing plate cannot be removed.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a pole piece tabletting device for lithium cell production, includes the bottom plate, the upper end left portion and the upper end right part of bottom plate all are equipped with mounting panel one and double-end lead screw that are located same horizontal plane respectively, and be located the same side mounting panel one and double-end lead screw are located same vertical plane, the upper portion and the lower part of mounting panel one all are seted up the removal groove one that runs through mounting panel one and control outer end wall, the inside of removal groove one is equipped with the convex slider, just the bulge of convex slider runs through the rear end of mounting panel one and extends to the outside of mounting panel one, the partial cover that the convex slider is located the outside of mounting panel one is established and is located the outside of same one side double-end lead screw and with double-end lead screw threaded connection, the upper end left part of bottom plate is equipped with mounting panel two, the upper end of mounting panel two is equipped with motor one, motor one's output is equipped with the axis of rotation three through the shaft coupling, be equipped with the toper gear train jointly between the surface of axis of rotation three and the upper end of two double-end lead screws;
the two convex sliders that are located on the upper portion of the mounting plate are mutually close to one another and are mutually provided with a first rotating shaft, the two convex sliders that are located on the lower portion of the mounting plate are mutually close to one another and are mutually provided with a second rotating shaft, the outer surfaces of the second rotating shaft and the first rotating shaft are respectively provided with a squeeze roller used for squeezing pole piece surface coating particles, and the rear portions of the outer surfaces of the two squeeze rollers are respectively provided with a cleaning mechanism.
Preferably, the upper portion and the lower part of the mounting plate II are respectively provided with a second moving groove and a third moving groove which penetrate through the left outer end wall and the right outer end wall of the mounting plate II, the right side of the inner wall of the second moving groove is provided with a rectangular opening groove which penetrates through the front outer end wall and the rear outer end wall of the mounting plate II, the left portion of the first rotating shaft extends into the second moving groove and is provided with a first transmission gear positioned in the rectangular opening groove, part of the outer surface of the first transmission gear penetrates through the rectangular opening groove and extends to the front side and the rear side of the mounting plate II respectively, the left end of the second rotating shaft penetrates through the third moving groove and extends to the left side of the mounting plate II, the left end of the mounting plate II is provided with an L-shaped connecting plate, the left end of the horizontal part of the L-shaped connecting plate is provided with a second motor, and the output end of the second motor penetrates through the side wall of the L-shaped connecting plate and is connected with the first rotating shaft, and the vertical part of the L-shaped connecting plate is provided with a transmission mechanism used for controlling the second rotating shaft to rotate in the opposite direction with the first rotating shaft.
Preferably, the transmission mechanism comprises a first transmission rod and a second transmission rod which are rotatably connected to the right end of the vertical portion of the L-shaped connecting plate, a second transmission gear meshed with the first transmission gear is arranged on the outer surface of the first transmission rod, a first transmission belt is arranged on the outer surface of the first transmission rod and the outer surface of the second transmission rod together, the left end of the first transmission belt penetrates through the side wall of the L-shaped connecting plate and extends to the left side of the L-shaped connecting plate, a second transmission belt is arranged between the outer surface of the part of the first transmission belt, which is located on the left side of the L-shaped connecting plate, and the outer surface of the part of the second transmission belt, which is located on the outer side of the second transmission belt, and a tensioning mechanism used for enabling the second transmission belt to always operate normally is arranged on the inner side of the second transmission belt.
Preferably, the tensioning mechanism comprises a vertical plate fixedly connected to the right end of the L-shaped connecting plate and a T-shaped connecting plate slidingly connected to the bottom plate, an inclined plate is arranged between the lower end of the vertical plate and the upper portion of the rear end of the T-shaped connecting plate, a horizontal limiting plate is arranged at the lower portion of the rear end of the T-shaped connecting plate, the rear end of the horizontal limiting plate penetrates through the side wall of the second mounting plate and extends to the rear side of the second mounting plate, and a transmission rod III which is located on the inner side of the second transmission belt and clings to the inner wall of the second transmission belt is arranged at the left end of the vertical portion of the T-shaped connecting plate.
Preferably, when the rotating shaft moves downwards, the T-shaped connecting plate moves forwards to enable the second transmission belt to be in a tight state, and when the rotating shaft moves upwards, the T-shaped connecting plate moves backwards to enable the second transmission belt to be in a tight state continuously.
Preferably, the two removing mechanisms are symmetrically arranged with the central line between the two squeeze rollers as an axis.
Preferably, the cleaning mechanism comprises a collecting box tightly attached to the outer surface of the squeeze rollers, a feeding groove penetrating through the collecting box and close to one side of the squeeze rollers is formed in a side wall of the collecting box, which is far away from the center line between the two squeeze rollers, and L-shaped fixing plates are jointly arranged between the left and right outer end walls of the collecting box and the rear ends of the two convex sliding blocks located on the same side.
Preferably, the inner wall of one side of the inner cavity of the collecting box, which is close to the central line between the two squeeze rolls, is an inclined structure for scraping away the coating particles.
Preferably, a rotating rod is horizontally arranged in the collecting box, a rotating rod is arranged in the middle of the outer surface of the rotating rod, an inclined elliptical ring groove is formed in the outer surface of the rotating rod, the left part of the rotating rod penetrates through the side wall of the collecting box and is rotationally connected to the vertical part of the L-shaped fixing plate, and a transmission belt III is arranged between the outer surface of the part of the rotating rod, which is positioned on the outer side of the collecting box, and the outer surface of the first rotating shaft;
the inner chamber front portion of collecting box is equipped with spacing slide bar, the outside of spacing slide bar is equipped with the clearance brush, the one end that the clearance brush is close to the rotatory stick is equipped with the whetting stick of sliding connection in the oval annular of slope.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the distance between the two extrusion rollers can be adjusted by arranging the structures such as the motor I, the double-head screw rod and the convex sliding block according to the storage batteries with different shapes and sizes, so that the device can compact pole pieces with different requirements, the application range of the device is enlarged, in addition, the two extrusion rollers can rotate in opposite directions by arranging the structures such as the transmission mechanism and the tensioning mechanism, and the like, and the extrusion force with the same strength is applied to the two sides of the pole pieces while conveying the pole pieces, so that the device can continuously roll the pole pieces, and the efficiency and quality of processing the pole pieces are improved to a certain extent.
2. According to the invention, the cleaning mechanism is arranged, so that when the extrusion roller rotates, coating particles which are not firmly adhered on the surface of the extrusion roller are cleaned, and then the rest coating particles are scraped off, so that the coating particles fall into the collecting box or the bottom plate, and the phenomenon that the coating particles are reattached to the pole piece along with the rotation of the extrusion roller, and the quality of a pole piece finished product is influenced is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection structure of the first and second squeeze rolls of the mounting plate of the present invention;
FIG. 3 is a schematic view of a connection structure between a first mounting plate and a male slider according to the present invention;
FIG. 4 is a schematic diagram of a connection structure between a second mounting plate and first and second rotating shafts according to the present invention;
FIG. 5 is a schematic view of a second mounting plate according to the present invention;
FIG. 6 is a schematic diagram of a transmission mechanism of the present invention;
FIG. 7 is another schematic view of FIG. 6;
FIG. 8 is a schematic view of the structure of the cleaning mechanism of the present invention;
FIG. 9 is a cross-sectional view of the collection box of the present invention;
FIG. 10 is a schematic view showing the connection structure of the cleaning brush and the rotating lever according to the present invention.
In the figure: 1. a bottom plate; 11. a first mounting plate; 111. a first moving groove; 112. a first rotating shaft; 113. a second rotating shaft; 114. a first transmission gear; 115. a convex slide block; 116. an L-shaped fixing plate; 12. a second mounting plate; 121. a second moving groove; 122. a third moving groove; 123. a rectangular open slot; 13. double-end screw rod; 3. a first motor; 31. a third rotating shaft; 32. a conical gear set; 4. a squeeze roll; 6. an L-shaped connecting plate; 61. a second motor; 7. a transmission mechanism; 70. a horizontal limiting plate; 71. a first transmission rod; 72. a transmission gear II; 73. a first transmission belt; 74. a transmission rod II; 75. a second transmission belt; 76. a vertical plate; 77. an inclined plate; 78. a T-shaped connecting plate; 79. a transmission rod III; 8. a cleaning mechanism; 81. a collection box; 811. a feed chute; 82. a limit slide bar; 83. cleaning a hairbrush; 84. a rotating rod; 85. a third transmission belt; 86. a rotating rod; 87. inclined elliptical ring grooves; 88. and (5) a grinding wheel rod.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in fig. 1-7, this embodiment discloses a pole piece tabletting device for lithium battery production, which comprises a bottom plate 1, wherein a mounting plate one 11 and a double-headed screw 13 are respectively arranged at the left part and the right part of the upper end of the bottom plate 1 and are respectively positioned on the same horizontal plane, the two mounting plate one 11 and the double-headed screw 13 are arranged to balance the stress on the two sides of a rotating shaft one 112 and a rotating shaft two 113, the structural stability of the device is improved, the screw threads on the two sides of the double-headed screw 13 rotate in opposite directions, so that two convex sliding blocks 115 positioned on the same mounting plate one 11 move in opposite directions, thereby being convenient for applying the same extrusion force to the coating on the two sides of the pole piece, the mounting plate one 11 and the double-headed screw 13 positioned on the same side are positioned in the same vertical plane, the upper part and the lower part of the mounting plate one 11 are respectively provided with a moving groove one 111 penetrating through the left outer end wall and the mounting plate one 11, the inside of the first moving groove 111 is provided with a convex sliding block 115, the convex part of the convex sliding block 115 penetrates through the rear end of the first mounting plate 11 and extends to the outer side of the first mounting plate 11, so that the convex sliding block 115 can only move up and down in the first moving groove 111 and cannot deviate back and forth, the part of the convex sliding block 115 positioned at the outer side of the first mounting plate 11 is sleeved at the outer side of the double-end screw rod 13 positioned at the same side and is in threaded connection with the double-end screw rod 13, the left part of the upper end of the bottom plate 1 is provided with a second mounting plate 12, the second mounting plate 12 is positioned at the left side of the first mounting plate 11 positioned at the left part of the upper part of the bottom plate 1, the upper end of the second mounting plate 12 is provided with a first motor 3, the output end of the first motor 3 is provided with a third rotating shaft 31 through a coupler, a conical gear set 32 is jointly arranged between the outer surface of the third rotating shaft 31 and the upper ends of the two double-end screw rods 13, so that the rotation shaft III 31 controls the two double-headed screw rods 13 to rotate in the same direction, and the two squeeze rolls 4 are close to or far from each other;
specifically, a first rotating shaft 112 is commonly arranged between the ends, close to each other, of the two convex sliding blocks 115 positioned at the upper part of the first mounting plate 11, a second rotating shaft 113 is commonly arranged between the ends, close to each other, of the two convex sliding blocks 115 positioned at the lower part of the first mounting plate 11, squeeze rolls 4 for squeezing coating particles on the surface of the pole piece are arranged on the outer surfaces of the second rotating shaft 113 and the first rotating shaft 112, and the two squeeze rolls 4 rotate in opposite directions, so that not only can the resistance of the pole piece during movement be reduced, but also the component of the coating particles on the surface of the pole piece, which are stained on the squeeze rolls 4, can be reduced as far as possible;
referring to fig. 4-7, a second moving slot 121 and a third moving slot 122 penetrating through left and right outer end walls of the second mounting plate 12 are respectively formed in the upper portion and the lower portion of the second mounting plate 12, a rectangular opening slot 123 penetrating through the front and rear outer end walls of the second mounting plate 12 is formed in the right side of the inner wall of the second moving slot 121, so that part of the outer surface of the first transmission gear 114 can extend to the outer side of the second mounting plate 12 to carry out meshed transmission with the second transmission gear 72, the left portion of the first rotating shaft 112 extends into the second moving slot 121 and is provided with a first transmission gear 114 positioned in the rectangular opening slot 123, part of the outer surface of the first transmission gear 114 penetrates through the rectangular opening slot 123 and extends to the front and rear sides of the second mounting plate 12 respectively, the left end of the second rotating shaft 113 penetrates through the third moving slot 122 and extends to the left side of the second mounting plate 12, an L-shaped connecting plate 6 is arranged at the left end of the second mounting plate 12, only a horizontal part of the L-shaped connecting plate 6 slides on the second mounting plate 12, a vertical part of the L-shaped connecting plate 6 is positioned on the front side of the second mounting plate 12, a second motor 61 is arranged at the left end of the horizontal part of the L-shaped connecting plate 6, so that the first extrusion roller 4 and the lower rotation roller 4 and the second extrusion roller 4 are positioned in the opposite directions to the opposite to the first rotation direction and the second extrusion roller 6 are used for driving the first rotation and the first rotation roller and the second extrusion roller 112 and the second rotation unit and the second extrusion roller 4 and the second rotation unit is connected to the first rotation roller and the second rotation roller and the opposite rotation unit and the second rotation side of the first rotation end and the second rotation driving roller and the second rotation driving unit and the second side plate 12;
specifically, the transmission mechanism 7 comprises a first transmission rod 71 and a second transmission rod 74 which are rotatably connected to the right end of the vertical part of the L-shaped connecting plate 6, the first transmission rod 71 and the second transmission rod 74 are respectively positioned at the upper part and the lower part of the vertical part of the L-shaped connecting plate 6, a second transmission gear 72 meshed with a first transmission gear 114 is arranged on the outer surface of the first transmission rod 71, so that the second transmission gear 72 can rotate in the opposite direction to the first rotation shaft 112, and a first transmission belt 73 is commonly arranged on the outer surfaces of the first transmission rod 71 and the second transmission rod 74;
the second transmission rod 74 is arranged for switching, because the first transmission rod 71 and the top of the second motor 61 are positioned at the same horizontal level, and the second rotation shaft 113 is positioned at the lower side of the second motor 61, if the belt is directly arranged, the second motor 61 can squeeze the belt, so that the belt can be continuously rubbed with the second motor 61 during working, the service life of the belt is reduced, in addition, the second transmission rod 74 can reduce the wrap angle between the second transmission belt 75 and the second rotation shaft 113, and the too large wrap angle between the second transmission belt 75 and the second rotation shaft 113 is avoided, and the rotation of the second rotation shaft 113 is influenced;
the left end of the first transmission belt 73 penetrates through the side wall of the L-shaped connecting plate 6 and extends to the left side of the L-shaped connecting plate 6, a second transmission belt 75 is arranged between the outer surface of the part of the first transmission belt 73, which is positioned at the left side of the L-shaped connecting plate 6, and the outer surface of the part of the second transmission belt 113, which is positioned at the outer side of the second mounting plate 12, and the second transmission belt 75 and the first transmission belt 73 are utilized to enable the second transmission belt 113 to rotate in the same direction as the second transmission rod 74, so that the rotation direction of the second transmission belt 113 is opposite to the rotation direction of the first transmission belt 112, a tensioning mechanism for enabling the second transmission belt 75 to normally operate is arranged on the inner side of the second transmission belt 75, and as the first transmission belt 112 and the second transmission belt 113 can be adjusted by moving up and down according to the pole piece sizes of storage batteries with different shapes, the distance between the second transmission rod 74 and the second transmission belt 113 is affected, so that the tensioning mechanism is arranged to enable the second transmission belt 75 to normally operate;
specifically, the tensioning mechanism includes a vertical plate 76 fixedly connected to the right end of the L-shaped connecting plate 6 and a T-shaped connecting plate 78 slidingly connected to the bottom plate 1, an inclined plate 77 is jointly arranged between the lower end of the vertical plate 76 and the upper part of the rear end of the T-shaped connecting plate 78, the inclined plate 77 is arranged instead of a traditional spring, so that when the first rotating shaft 112 moves upwards, the inclined plate 77 can be pulled back through the vertical plate 76, the resistance of the first rotating shaft 112 in the process can be increased by the spring, if the spring is in a stretched or contracted state for a long time, the elasticity of the spring can be influenced, the long-term use is not facilitated, the lower part of the rear end of the T-shaped connecting plate 78 is provided with a horizontal limiting plate 70 which is horizontally arranged, the rear end of the horizontal limiting plate 70 penetrates through the side wall of the second mounting plate 12 and extends to the rear side of the second mounting plate 12, so that the T-shaped connecting plate 78 can only move in the front-rear direction, and the left end of the vertical part of the T-shaped connecting plate 78 is provided with a third transmission rod 79 which is positioned inside the second transmission belt 75 and is mutually clung to the inner wall of the second transmission belt 75;
further, when the first rotating shaft 112 moves downwards, the T-shaped connecting plate 78 moves forwards to make the second transmission belt 75 in a tight state, when the first rotating shaft 112 moves upwards, the T-shaped connecting plate 78 moves backwards to make the second transmission belt 75 in a tight state, that is, when the first rotating shaft 112 and the second rotating shaft 113 move close to or far away from each other, the vertical plate 76 moves upwards and downwards to push and pull the inclined plate 77, so that the bottom of the inclined plate 77 in an inclined state is forced to move forwards and backwards to prop the second transmission belt 75 open, and normal transmission operation of the second transmission belt 75 is avoided.
Therefore, the specific implementation manner of this embodiment is as follows:
the first motor 3 controls the two double-headed screw rods 13 to rotate through the third rotating shaft 31 and the conical gear set 32, and controls the first rotating shaft 112 and the second rotating shaft 113 to be close to or far away from each other, in the process, the first rotating shaft 112 drives the L-shaped connecting plate 6 to move together through the second motor 61, so that the L-shaped connecting plate 6 drives the vertical plate 76 to push and pull the inclined plate 77, the inclined angle of the inclined plate 77 is changed, and the T-shaped connecting plate 78 and the third transmission rod 79 are controlled to move in the front-back direction, so that the second transmission belt 75 is stretched, and the second transmission belt 75 is always in a tight state;
then the motor II 61 is started to control the rotation shaft I112 and the transmission gear I114 to rotate, then the transmission gear I114 drives the transmission rod I71 to rotate reversely through the transmission gear II 72 which is meshed, then the transmission rod I71 controls the transmission rod II 74 to rotate through the transmission belt I73, finally the transmission rod II 74 controls the rotation shaft II 113 to rotate in the opposite direction to the rotation shaft I112 through the transmission belt II 75 and the transmission rod III 79, so that the two extrusion rollers 4 can rotate in the opposite direction simultaneously, and the same extrusion force is applied to coating particles on the surface of the pole piece while conveying the pole piece, so that rolling quality and efficiency are improved, and the quality of the pole piece is improved to a certain extent.
Example two
In the embodiment, on the basis of the first embodiment, the cleaning mechanisms 8 are added so as to remove coating particles carelessly stained on the extrusion rollers 4, so that the particles are prevented from falling onto the pole pieces again to influence the quality of the pole pieces, as shown in fig. 8-10, the cleaning mechanisms 8 are arranged at the rear parts of the outer surfaces of the two extrusion rollers 4, and the two cleaning mechanisms 8 are symmetrically arranged with the central line between the two extrusion rollers 4 as an axis, namely, the structural directions of the two cleaning mechanisms 8 are opposite;
specifically, the cleaning mechanism 8 includes a collecting box 81 closely attached to the outer surface of the squeeze rollers 4, a side wall of the collecting box 81 far away from the center line between the two squeeze rollers 4 is provided with a feeding groove 811 penetrating through the collecting box 81 and close to one side of the squeeze rollers 4, so that coating particles stained on the squeeze rollers 4 can directly enter the collecting box 81 through the feeding groove 811, and thus the coating particles can directly fall into the collecting box 81 to be collected after being separated from the squeeze rollers 4, the collecting box 81 positioned at the lower side can only collect part of the coating particles, and other coating particles can fall onto the bottom plate 1 through the feeding groove 811 positioned at the lower side of the collecting box 81, so that the coating particles are prevented from falling onto a pole piece to affect the quality of the pole piece, and an L-shaped fixing plate 116 is jointly arranged between the left and right outer end walls of the collecting box 81 and the rear ends of two convex sliding blocks 115 positioned at the same side respectively, so that the cleaning mechanism 8 can move together with the squeeze rollers 4 positioned at the same side to avoid mutual interference of the two;
specifically, referring to fig. 9, the inner wall of the inner cavity of the collecting box 81 near the center line between the two squeeze rollers 4 is an inclined structure for scraping away the coating particles, so as to scrape away the coating particles stained on the surface of the squeeze rollers 4 as much as possible;
specifically, referring to fig. 9 and 10, a rotating rod 84 is horizontally disposed inside the collecting box 81, the diameter of the rotating rod 84 is smaller than the diameters of the first rotating shaft 112 and the second rotating shaft 113, so that the rotating rod 84 can rotate at a rotation speed greater than that of the first rotating shaft 112 and the second rotating shaft 113, the left-right movement speed of the cleaning brush 83 is accelerated, and the area which cannot be cleaned is reduced as much as possible, but in the actual use process, the lengths of the squeeze roller 4 and the cleaning brush 83 can be prolonged, so that the pole piece can only be located in the middle area of the squeeze roller 4, thereby avoiding the situation that the part of the surface of the squeeze roller 4 used for squeezing the pole piece cannot be cleaned, a rotating rod 86 is disposed in the middle of the outer surface of the rotating rod 84, an inclined elliptical ring groove 87 is formed in the outer surface of the rotating rod 86, the left part of the rotating rod 84 penetrates through the side wall of the collecting box 81 and is rotationally connected to the vertical part of the L-shaped fixing plate 116, and a driving belt three 85 is jointly disposed between the outer surface of the rotating rod 84 located outside the collecting box 81 and the outer surface of the first rotating shaft 112, and the cleaning mechanism 8 is identical in structure and function, so that only one group of the cleaning mechanism is described, and the other cleaning mechanism is identical to the connecting structure;
specifically, the front portion of the inner cavity of the collecting box 81 is provided with a limit sliding rod 82, the outer side of the limit sliding rod 82 is provided with a cleaning brush 83, the length of the cleaning brush 83 is only slightly smaller than the inner side width of the collecting box 81, so that the cleaning brush 83 only needs to be moved in a small range and cannot greatly affect the work of cleaning the surface-contaminated coating particles of the squeeze roller 4, but the cleaning force of the cleaning brush 83 on the squeeze roller 4 can be increased, one end, close to a rotating rod 86, of the cleaning brush 83 is provided with a grinding rod 88 which is in sliding connection in an inclined elliptical groove 87, so that the cleaning brush 83 can move left and right along with the rotation of the rotating rod 84 and the rotating rod 86, the squeeze roller 4 is cleaned, and the surface-contaminated coating particles of the squeeze roller 4 are removed.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a pole piece tabletting device for lithium cell production, includes bottom plate (1), its characterized in that: the left part and the right part of the upper end of the bottom plate (1) are respectively provided with a first mounting plate (11) and a double-end screw rod (13) which are respectively positioned on the same horizontal plane, the first mounting plate (11) and the double-end screw rod (13) which are positioned on the same side are positioned in the same vertical plane, the upper part and the lower part of the first mounting plate (11) are respectively provided with a first moving groove (111) penetrating through the left outer end wall and the right outer end wall of the first mounting plate (11), the inside of the first moving groove (111) is provided with a convex sliding block (115), the convex part of the convex sliding block (115) penetrates through the rear end of the first mounting plate (11) and extends to the outer side of the first mounting plate (11), the part of the convex sliding block (115) positioned on the outer side of the first mounting plate (11) is sleeved on the outer side of the double-end screw rod (13) positioned on the same side and is in threaded connection with the double-end screw rod (13), the left part of the upper end of the bottom plate (1) is provided with a second mounting plate (12), the upper end of the second mounting plate (12) is provided with a first motor (3), the output end of the first motor (3) is provided with a rotating shaft three (31), and the output end of the first motor (3) is provided with a conical gear set (31) through a shaft three rotating shaft, and the outer surface (31) is provided with a common screw rod (32);
a first rotating shaft (112) is arranged between two ends, close to each other, of the two convex sliding blocks (115) on the upper portion of the first mounting plate (11), a second rotating shaft (113) is arranged between two ends, close to each other, of the two convex sliding blocks (115) on the lower portion of the first mounting plate (11), squeeze rollers (4) used for squeezing pole piece surface coating particles are arranged on the outer surfaces of the second rotating shaft (113) and the first rotating shaft (112), and a cleaning mechanism (8) is arranged on the rear portion of the outer surface of each squeeze roller (4).
2. The pole piece tabletting device for producing lithium batteries according to claim 1, wherein: the upper portion and the lower part of mounting panel two (12) are respectively seted up the removal groove two (121) and the removal groove three (122) that run through mounting panel two (12) left and right outer end wall, rectangular open slot (123) that run through mounting panel two (12) front and back outer end wall are seted up on the inner wall right side of removal groove two (121), the left portion of axis of rotation one (112) extends to in removal groove two (121) and is equipped with transmission gear one (114) that are located rectangular open slot (123), just the partial surface of transmission gear one (114) passes rectangular open slot (123) and extends to the front and back both sides of mounting panel two (12) respectively, the left end of axis of rotation two (113) passes removal groove three (122) and extends to the left side of mounting panel two (12), the left end of mounting panel two (12) is equipped with L shape connecting plate (6), the horizontal part left end of L shape connecting plate (6) is equipped with motor two (61), the output end of motor two (61) runs through the lateral wall of L shape connecting plate (6) and is connected with axis of rotation one (112) and is used for carrying out rotation (112) to rotate on opposite direction rotation mechanism (7) to the rotation one side of rotation axis (112).
3. The pole piece tabletting device for producing lithium batteries according to claim 2, wherein: the transmission mechanism (7) comprises a first transmission rod (71) and a second transmission rod (74) which are rotatably connected to the right end of the vertical portion of the L-shaped connecting plate (6), a second transmission gear (72) meshed with the first transmission gear (114) is arranged on the outer surface of the first transmission rod (71) and the outer surface of the second transmission rod (74), a first transmission belt (73) is jointly arranged on the outer surface of the first transmission rod, the left end of the first transmission belt (73) penetrates through the side wall of the L-shaped connecting plate (6) and extends to the left side of the L-shaped connecting plate (6), a second transmission belt (75) is jointly arranged between the outer surface of the part of the first transmission belt (73) located on the left side of the L-shaped connecting plate (6) and the outer surface of the part of the second transmission shaft (113) located on the outer side of the second mounting plate (12), and a tensioning mechanism used for enabling the second transmission belt (75) to always run normally is arranged on the inner side of the second transmission belt (75).
4. A pole piece tabletting device for producing lithium batteries according to claim 3, wherein: the tensioning mechanism comprises a vertical plate (76) fixedly connected to the right end of an L-shaped connecting plate (6) and a T-shaped connecting plate (78) slidingly connected to the bottom plate (1), an inclined plate (77) is arranged between the lower end of the vertical plate (76) and the upper portion of the rear end of the T-shaped connecting plate (78), a horizontal limiting plate (70) horizontally arranged is arranged at the lower portion of the rear end of the T-shaped connecting plate (78), the rear end of the horizontal limiting plate (70) penetrates through the side wall of a second mounting plate (12) and extends to the rear side of the second mounting plate (12), and a third transmission rod (79) which is located inside a second transmission belt (75) and clung to the inner wall of the second transmission belt (75) is arranged at the left end of the vertical portion of the T-shaped connecting plate (78).
5. The pole piece tabletting device for producing lithium batteries according to claim 4, wherein: when the first rotating shaft (112) moves downwards, the T-shaped connecting plate (78) moves forwards to enable the second transmission belt (75) to be in a tight state, and when the first rotating shaft (112) moves upwards, the T-shaped connecting plate (78) moves backwards to enable the second transmission belt (75) to be in a tight state continuously.
6. The pole piece tabletting device for producing lithium batteries according to claim 1, wherein: the two cleaning mechanisms (8) are symmetrically arranged by taking the central line between the two squeeze rollers (4) as an axis.
7. The pole piece tabletting device for producing lithium batteries according to claim 6, wherein: the cleaning mechanism (8) comprises a collecting box (81) which is tightly attached to the outer surface of the squeeze rollers (4), a feeding groove (811) penetrating through the collecting box (81) and close to one side of the squeeze rollers (4) is formed in a side wall, far away from the center line between the two squeeze rollers (4), of the collecting box (81), and L-shaped fixing plates (116) are jointly arranged between the left outer end wall and the right outer end wall of the collecting box (81) and the rear ends of two convex sliding blocks (115) located on the same side respectively.
8. The pole piece tabletting device for producing lithium batteries according to claim 7, wherein: the inner wall of one side of the inner cavity of the collecting box (81) close to the central line between the two squeeze rollers (4) is an inclined structure for scraping away coating particles.
9. The pole piece tabletting device for producing lithium batteries according to claim 8, wherein: the inside level of collecting box (81) is equipped with rotary rod (84), the surface middle part of rotary rod (84) is equipped with rotatory stick (86), inclined oval annular groove (87) has been seted up to the surface of rotatory stick (86), the left portion of rotary rod (84) runs through the lateral wall of collecting box (81) and rotates to be connected on the vertical part of L shape fixed plate (116), part surface that rotary rod (84) is located the outside of collecting box (81) and the surface of axis of rotation one (112) are equipped with drive belt three (85) jointly;
the inner cavity front portion of collecting box (81) is equipped with spacing slide bar (82), the outside of spacing slide bar (82) is equipped with clearance brush (83), the one end that clearance brush (83) are close to rotatory stick (86) is equipped with rubdown stick (88) of sliding connection in slope oval annular (87).
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| CN202311405749.XA CN117445458A (en) | 2023-10-27 | 2023-10-27 | Pole piece tabletting device for lithium battery production |
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| CN202311405749.XA CN117445458A (en) | 2023-10-27 | 2023-10-27 | Pole piece tabletting device for lithium battery production |
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