Lithium battery coating equipment
阅读说明:本技术 一种锂电池涂膜设备 (Lithium battery coating equipment ) 是由 刘桐希 于 2020-05-14 设计创作,主要内容包括:本发明属于锂电池涂膜领域,尤其涉及一种锂电池涂膜设备,它包括挤出头、滑块、挡板、导销、弧板A、齿轮A、涡卷弹簧、轴A、辊筒A、刮刀、导座、清理板、齿轮B、轴C、电驱模块A、电驱模块B,其中挤出头中具有通过调节槽B连通的调节槽A和调节槽C,调节槽C通过连通槽与挤出头中的弧形挤出槽的中部连通,且连通槽与挤出槽等宽;本发明挤出头调节槽A两个滑块与挡板的联动来达到在首先将调节槽A内充满电极涂料后的情况下再经打开的调节槽B向调节槽C内横向均匀地填充电极涂料,从而使得调节槽C内的电极涂料整体基本以等速增高,进而使得电极涂料从调节槽C中经连通槽横向均匀地从挤出槽的下端开口挤出挤出头并均匀地涂布于绕辊筒B运动的铜箔上。(The invention belongs to the field of lithium battery coating, and particularly relates to lithium battery coating equipment which comprises an extrusion head, a sliding block, a baffle plate, a guide pin, an arc plate A, a gear A, a volute spiral spring, a shaft A, a roller A, a scraper, a guide seat, a cleaning plate, a gear B, a shaft C, an electric drive module A and an electric drive module B, wherein the extrusion head is provided with an adjusting groove A and an adjusting groove C which are communicated through the adjusting groove B; according to the invention, the two sliders of the extrusion head adjusting groove A are linked with the baffle plate to achieve the purpose that the electrode coating is transversely and uniformly filled into the adjusting groove C through the opened adjusting groove B under the condition that the adjusting groove A is filled with the electrode coating at first, so that the whole electrode coating in the adjusting groove C is increased at a constant speed, and the electrode coating is transversely and uniformly extruded out of the extrusion head from the lower end opening of the extrusion groove through the communicating groove from the adjusting groove C and is uniformly coated on the copper foil moving around the roller B.)
1. A lithium battery coating equipment is characterized in that: the extrusion head comprises an extrusion head, a sliding block, a baffle plate, a guide pin, an arc plate A, a gear A, a volute spiral spring, a shaft A, a roller A, a scraper, a guide seat, a cleaning plate, a gear B, a shaft C, an electric drive module A and an electric drive module B, wherein the extrusion head is provided with an adjusting groove A and an adjusting groove C which are communicated through the adjusting groove B; the electrode coating enters the adjusting groove A through a press-in opening on the extrusion head and then is uniformly coated on the moving copper foil supported by the roller B in the transmission equipment through the adjusting groove B, the adjusting groove C, the communicating groove and the extrusion groove in sequence; an arc plate A for intermittently dredging and cleaning fine particles mixed in the electrode coating and blocking the extrusion groove is hermetically and slidably matched in the extrusion groove around the axis of the arc center of the extrusion groove; a gear A which is rotationally matched with the shaft A is meshed with the insections A on the cambered surface of the arc plate A; a shaft A in transmission connection with an output shaft of an electric drive module A arranged on the extrusion head rotates through a pre-stored volute spiral spring driving gear A, and the arc plate A is provided with a structure for limiting the motion amplitude of the arc plate A;
a cleaning plate for removing the electrode coating dredged and cleaned by the arc plate A to the outlet of the extrusion groove from bottom to top is vertically arranged in a guide seat arranged below the extrusion head in a sliding manner, a shaft C in transmission connection with an output shaft of the electric drive module A is provided with a gear B, and the gear B is meshed with the insection B on the cleaning plate; a roller A driven to rotate by an electric driving module B is arranged above an outlet of the extrusion groove, and the roller A is matched with the concave cambered surface at the upper end of the cleaning plate to clean the electrode coating on the cleaning plate; a scraper for cleaning the electrode paint on the surface of the roller A is arranged on the extrusion head;
a baffle plate for closing or opening the adjusting groove B is vertically slid in the adjusting groove C, and two guide pins symmetrically arranged on the baffle plate are respectively vertically slid in two guide grooves B communicated with the adjusting groove A and the adjusting groove B; two inclined guide grooves C which are respectively matched with the guide pins on the same side are symmetrically formed on the two sliding blocks which slide in the adjusting groove A in the opposite direction or in the opposite direction; the two sliders moving oppositely drive the baffle to open the adjusting groove B, and the two sliders moving oppositely drive the baffle to close the adjusting groove B; and each sliding block is provided with a reset structure.
2. The lithium battery coating apparatus as claimed in claim 1, wherein: two guide grooves A are symmetrically formed in the two sides of the adjusting groove B in the adjusting groove C, and the baffle vertically slides in the guide grooves A; two guide posts are symmetrically arranged on the two sliding blocks, and the two guide posts respectively slide in two circular grooves on the side wall of the extrusion head; the tail end of each guide pillar is provided with a reset plate which ensures that the corresponding slide block is completely reset.
3. The lithium battery coating apparatus as claimed in claim 1, wherein: a sealing ring A which is in sealing fit with the inner wall of the adjusting groove A is arranged on each sliding block, so that electrode coating is prevented from entering a space where the guide groove B, the guide groove C and the two sliding blocks move back to back through a gap between the sliding blocks and the adjusting groove A; and a sealing ring B which is in sealing fit with the inner wall of the extrusion groove is arranged at the lower end of the arc plate A so as to prevent the electrode coating from entering a space above the communicating groove in the extrusion groove.
4. The lithium battery coating apparatus as claimed in claim 1, wherein: the extrusion head is provided with an arc plate B which is concentric with the arc plate A in arc axis; a limiting block is arranged on the arc plate B, and a clamping block A arranged on the arc plate A is matched with the limiting block so as to limit the motion amplitude of the arc plate A in the arc extrusion groove; two ends of the shaft A are respectively in rotating fit with two supports A arranged on the extrusion head; the volute spring nested on the shaft A is positioned in the ring groove on the inner wall of the gear A; one end of the volute spiral spring is connected with the shaft A, and the other end of the volute spiral spring is connected with the inner wall of the annular groove; the clamping block B arranged on the inner wall of the ring groove is matched with the clamping block C arranged on the shaft A.
5. The lithium battery coating apparatus as claimed in claim 1, wherein: the shaft B of the roller A is rotationally matched with two supports B arranged on the extrusion head; one end of the shaft B is provided with a gear E which is meshed with a gear F arranged on an output shaft of the electric drive module B.
6. The lithium battery coating apparatus as claimed in claim 1, wherein: a gear C is arranged at one end of the guide seat, the accommodating groove and the shaft C, the gear C is meshed with a gear D arranged on the side wall of the extrusion head, and the shaft of the gear D is in rotating fit with the extrusion head; the chain wheel A coaxial with the gear D is in transmission connection with a chain B arranged on an output shaft of the electric drive module A through a chain A; and a chain wheel C coaxial with the chain wheel B is in transmission connection with a chain wheel D arranged at one end of the shaft A through a chain B.
7. The lithium battery coating apparatus as claimed in claim 6, wherein: the transmission ratio of the chain wheel A to the chain wheel B is less than 1, and the transmission ratio of the chain wheel B to the chain wheel C is 1: 1, the transmission ratio of the chain wheel C to the chain wheel D is less than 1; the transmission ratio of the gear A to the gear B is 1: 1.
Technical Field
The invention belongs to the field of lithium battery coating, and particularly relates to lithium battery coating equipment.
Background
The coating machine is widely applied to industries such as batteries, electronic photovoltaics and the like, and the slit type extrusion die head serving as a core component in the coating machine cannot diffuse the electrode coating extruded from the material groove to two sides in a short time due to the fact that the electrode coating is in a viscous state in the using process, so that the electrode coating is in a thick middle and thin two sides after reaching a carrier film. The electrode coating material coated on the film generates a laterally non-uniform layout, thereby affecting the quality of the lithium battery coating film.
In addition, the slit type extrusion die head in the conventional coating machine is easily partially blocked by foreign particles mixed in the electrode coating after a period of use, so that dents appear on the surface of the electrode coating extruded from the extrusion die head and coated on the film carrier, the coating on the film carrier is uneven, and the yield of the film carrier is affected. In the traditional method, the cleaning of the slot type extrusion die head is specially carried out after shutdown, and the cleaning process is complicated, much time is consumed, and the production progress is influenced.
In view of the above-mentioned disadvantages of the slit type extrusion die in the conventional coating machine, it is necessary to design a lithium battery coating apparatus that can automatically clean the foreign matters in the slit type extrusion die to prevent clogging and can transversely and uniformly complete the application of the electrode paint coating to the film carrier.
The invention designs a lithium battery film coating device to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a lithium battery film coating device which is realized by adopting the following technical scheme.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
A lithium battery coating equipment is characterized in that: the electric drive type extrusion head comprises an extrusion head, a sliding block, a baffle, a guide pin, an arc plate A, a gear A, a volute spiral spring, a shaft A, a roller A, a scraper, a guide seat, a cleaning plate, a gear B, a shaft C, an electric drive module A and an electric drive module B, wherein the extrusion head is provided with an adjusting groove A and an adjusting groove C which are communicated through a narrow adjusting groove B, the adjusting groove C is communicated with the middle part of an arc extrusion groove in the extrusion head through a communicating groove, the communicating groove is as wide as the extrusion groove, and the communicating groove and the extrusion groove which are as wide ensure that electrode paint which arrives in the communicating groove from the adjusting groove C at a transverse uniform constant speed can transversely and uniformly enter the extrusion groove and be transversely and uniformly coated on a moving copper foil through the extrusion groove. The electrode coating enters the adjusting groove A through a press-in opening on the extrusion head and then is uniformly coated on the moving copper foil supported by the roller B in the transmission equipment through the adjusting groove B, the adjusting groove C, the communicating groove and the extrusion groove in sequence; an arc plate A for intermittently dredging and cleaning fine particles mixed in the electrode coating and blocking the extrusion groove is hermetically and slidably matched in the extrusion groove around the axis of the arc center of the extrusion groove; a gear A which is rotationally matched with the shaft A is meshed with the insections A on the cambered surface of the arc plate A; the shaft A in transmission connection with the output shaft of the electric drive module A installed on the extrusion head rotates through the pre-stored spiral spring drive gear A, and the arc plate A is provided with a structure for limiting the movement amplitude of the arc plate A. The adjusting groove B communicated between the adjusting groove A and the adjusting groove C is in a closed state initially, so that the electrode paint squeezed into the adjusting groove A from the press-in opening can fill the adjusting groove A first, and in the process of filling the adjusting groove A, along with the opposite movement of the two sliding blocks under the squeezing of the electrode paint and the gradual opening of the baffle plate to the adjusting groove B, when the electrode paint in the adjusting groove A reaches the height of the adjusting groove B, the electrode paint of the non-Newtonian fluid slowly and transversely and uniformly enters the adjusting groove C in a small amount. When the two sliders move to the limit, the amount of the electrode coating filled in the adjusting groove A reaches the limit, when the electrode coating is continuously pressed into the adjusting groove A through the pressing-in opening, the electrode coating in the adjusting groove A can transversely and uniformly enter the adjusting groove C through the fully-opened adjusting groove B, so that the liquid level of the electrode coating entering the adjusting groove C is transversely and uniformly increased at a constant speed, no matter whether the adjusting groove C is filled with the electrode coating or not, as long as the liquid level height of the electrode coating in the adjusting groove C reaches the notch of the communicating groove, the electrode coating in the adjusting groove C transversely and uniformly flows into the extruding groove through the communicating groove, and is transversely and uniformly coated on the moving copper foil through the extruding groove under the action of subsequent constant extruding force.
A cleaning plate for removing the electrode coating dredged and cleaned by the arc plate A to the outlet of the extrusion groove from bottom to top is vertically arranged in a guide seat arranged below the extrusion head in a sliding manner, a shaft C in transmission connection with an output shaft of the electric drive module A is provided with a gear B, and the gear B is meshed with the insection B on the cleaning plate; a roller A driven to rotate by an electric driving module B is arranged above an outlet of the extrusion groove, and the roller A is matched with the concave cambered surface at the upper end of the cleaning plate to clean the electrode coating on the cleaning plate; and a scraper for cleaning the electrode paint on the surface of the roller A is arranged on the extrusion head.
A baffle plate for closing or opening the adjusting groove B is vertically slid in the adjusting groove C, and two guide pins symmetrically arranged on the baffle plate are respectively vertically slid in two guide grooves B communicated with the adjusting groove A and the adjusting groove B; two inclined guide grooves C which are respectively matched with the guide pins on the same side are symmetrically formed on the two sliding blocks which slide in the adjusting groove A in the opposite direction or in the opposite direction; the two sliders moving oppositely drive the baffle to open the adjusting groove B, and the two sliders moving oppositely drive the baffle to close the adjusting groove B; and each sliding block is provided with a reset structure.
As a further improvement of the technology, two guide grooves a are symmetrically formed in the adjusting groove C on two sides of the adjusting groove B, and the baffle vertically slides in the guide grooves a; two guide posts are symmetrically arranged on the two sliding blocks, and the two guide posts respectively slide in two circular grooves on the side wall of the extrusion head; the tail end of each guide pillar is provided with a reset plate which ensures that the corresponding slide block is completely reset. The guide groove A is matched with the baffle plate to play a role in positioning and guiding the vertical movement of the baffle plate. Can accomplish the manual reset to two sliders through pressing the board that resets, the setting of two sliders simultaneously drives the baffle through mutually supporting of pilot pin and guide slot C and accomplishes closing to adjustment tank B.
As a further improvement of the technology, each slider is provided with a sealing ring A which is in sealing fit with the inner wall of the adjusting groove A, so that electrode coatings are prevented from entering a space formed by the slider and the adjusting groove A and moving back to back in the guide groove B and the guide groove C and the two sliders, the influence of the electrode coatings on the movement range of the slider to two sides in the space formed by the back to back movement of the sliders is avoided, and meanwhile, the influence of the electrode coatings on the movement of the guide pins in the guide grooves B and C is avoided. The sealing washer B that seals up complex with extruding the inslot wall is installed to arc board A's lower extreme to prevent that electrode coating from getting into to extrude in the groove in the space that lies in the intercommunication groove top, avoid electrode coating because of from arc board A and extrude the groove inner wall between reveal and the electrode coating's that leads to extrude inefficiency, simultaneously, avoid electrode coating because of taking place to reveal the waste that causes, practice thrift the cost.
As a further improvement of the technology, an arc plate B which is concentric with the arc plate A in arc axis is arranged on the extrusion head; the arc plate B is provided with a limiting block, and a clamping block A arranged on the arc plate A is matched with the limiting block to limit the motion amplitude of the arc plate A in the arc extrusion groove. Two ends of the shaft A are respectively in rotating fit with two supports A arranged on the extrusion head. The volute spring nested on the shaft A is positioned in the ring groove on the inner wall of the gear A; one end of the volute spiral spring is connected with the shaft A, and the other end of the volute spiral spring is connected with the inner wall of the annular groove; the clamping block B arranged on the inner wall of the ring groove is matched with the clamping block C arranged on the shaft A. The annular groove provides accommodating space for the volute spiral spring, the clamping block B and the clamping block C.
As a further improvement of the technology, a shaft B where the roller A is positioned is rotationally matched with two supports B arranged on the extrusion head; one end of the shaft B is provided with a gear E which is meshed with a gear F arranged on an output shaft of the electric drive module B.
As a further improvement of the technology, the shaft C is rotationally matched with the guide seat, and the gear B mounted on the shaft C is positioned in the accommodating groove on the guide seat; one end of the shaft C is provided with a gear C, the gear C is meshed with a gear D arranged on the side wall of the extrusion head, and the shaft of the gear D is in rotating fit with the extrusion head; the chain wheel A coaxial with the gear D is in transmission connection with a chain B arranged on an output shaft of the electric drive module A through a chain A; and a chain wheel C coaxial with the chain wheel B is in transmission connection with a chain wheel D arranged at one end of the shaft A through a chain B.
As a further improvement of the present technology, the transmission ratio of the sprocket a to the sprocket B is less than 1, and the transmission ratio of the sprocket B to the sprocket C is 1: 1, the transmission ratio of the chain wheel C to the chain wheel D is less than 1; the transmission ratio of the gear A to the gear B is 1: 1, under the common drive of electricity drive module A, arc board A's rate of motion is greater than the rate of motion of clearance board, guarantees arc board A when arriving the notch department of extruding the groove in advance under the rapid motion, and the clearance board also just reachs the notch department of extruding the groove and to being cleared up the electrode coating that is thoughtlessly had the foreign matter of being cleared up out and piling up and extruding the groove notch by arc board A clearance through short distance's motion.
Compared with the traditional lithium battery coating equipment, the invention has the advantages that the two sliders of the extrusion head adjusting groove A are linked with the baffle plate to achieve the purpose that the electrode coating is transversely and uniformly filled into the adjusting groove C through the opened adjusting groove B under the condition that the adjusting groove A is filled with the electrode coating, so that the whole electrode coating in the adjusting groove C is basically increased at a constant speed, and the electrode coating is transversely and uniformly extruded out of the extrusion head from the lower end opening of the extrusion groove through the communicating groove from the adjusting groove C and is uniformly coated on the copper foil moving around the roller B.
According to the invention, the movement of the arc plate A in the extrusion groove can clean foreign particles which are doped in the electrode coating and block the extrusion groove, so that the coating extruded from the outlet of the extrusion groove and coated on the copper foil is ensured not to have the defect of coating on the copper foil caused by the blocking of the foreign particles in the extrusion groove, and the coating on the copper foil is ensured to be uniformly coated. Simultaneously, the mixture of the foreign matter particles and the coating which are cleaned to the extrusion groove opening by the arc plate A is timely cleaned by the cleaning plate and taken away by the roller A, so that the cleaning plate is guaranteed to timely and effectively clean the extrusion groove opening.
The invention automatically cleans the foreign matters in the extrusion groove in the production process or after the production is finished, thereby saving time, saving trouble and being convenient, not occupying production time and having higher production efficiency.
In addition, the arc plate A and the cleaning plate are simultaneously driven by the electric drive module A, so that the arc plate A and the cleaning plate move to form linkage, and the number of driving mechanisms is greatly saved. The linkage between the arc plate A and the cleaning plate enables the instruction sent by the control system to tend to be simpler, the burden of the control system is reduced, and the production cost of equipment is saved. The invention has simple structure and better use effect.
Drawings
FIG. 1 is a schematic view of the invention in combination with copper foil.
Fig. 2 is an overall sectional view of the present invention.
FIG. 3 is a cross-sectional view of the shaft A, the spiral spring, the gear A and the arc plate A.
FIG. 4 is a schematic view of the combination of gear B, cleaning plate, shaft C, gear C, sprocket A, chain A and sprocket B.
FIG. 5 is a cross-sectional view of the shaft C, gear D, sprocket A, chain A, sprocket B, electric drive module A, sprocket C, chain B and sprocket D in cooperation.
Figure 6 is a schematic cross-section of the roller a, the shaft B, the gear E, the gear F and the electric drive module B in cooperation.
Fig. 7 is a schematic perspective view of the cooperation of the shutter, the guide pin and the slider.
Fig. 8 is a schematic view of an extrusion head.
FIG. 9 is a schematic sectional view of the regulating groove A, the regulating groove B, the regulating groove C, the communicating groove and the extruding groove in the extruding head.
Fig. 10 is a schematic sectional view of the distribution of two guide grooves B in the extrusion head.
Fig. 11 is a cross-sectional view of the shutter, guide pin and slider assembly.
Fig. 12 is a perspective schematic view of two slides, guide pin and bezel in cooperation.
FIG. 13 is a schematic view of a slider.
Figure 14 is a schematic view of arc plate a.
Fig. 15 is a schematic cross-sectional view of the gear a, the spiral spring, the shaft a, the latch C and the latch B in two viewing angles.
Number designation in the figures: 1. an extrusion head; 2. an adjusting groove A; 3. a pressure inlet; 4. an adjusting tank C; 5. an adjusting groove B; 6. a guide groove A; 7. a communicating groove; 8. an extrusion groove; 9. a guide groove B; 10. a slider; 11. a guide groove C; 12. a sealing ring A; 13. a guide post; 14. a reset plate; 15. a baffle plate; 16. a guide pin; 17. an arc plate A; 18. insection A; 19. a seal ring B; 20. a clamping block A; 21. an arc plate B; 22. a limiting block; 23. a gear A; 24. a ring groove; 25. a volute spiral spring; 26. an axis A; 27. a roller A; 28. a shaft B; 29. a scraper; 30. a guide seat; 31. accommodating grooves; 32. cleaning the plate; 33. an inner concave cambered surface; 34. insection B; 35. a gear B; 36. an axis C; 37. a gear C; 38. a gear D; 39. a chain wheel A; 40. a chain A; 41. a sprocket B; 42. a sprocket C; 43. an electric drive module A; 44. a chain B; 45. a sprocket D; 46. a gear E; 47. a gear F; 48. an electric drive module B; 49. a support B; 50. a support A; 51. a roller B; 52. copper foil; 53. a circular groove; 54. a clamping block B; 55. and (4) a fixture block C.
Detailed Description
The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1, 2 and 3, it comprises an
As shown in fig. 2, 3 and 4, a
As shown in fig. 2 and 11, a
As shown in fig. 7, 9 and 11, two guide grooves a6 are symmetrically formed in the adjusting groove C4 on both sides of the adjusting groove B5, and the
As shown in fig. 11 and 13, each of the
As shown in fig. 2 and 3, the
As shown in fig. 6, the roller a27 is located on an axis B28 that is rotationally engaged with two abutments B49 mounted on the
As shown in fig. 4 and 5, the shaft C36 is rotatably engaged with the
As shown in fig. 5, the transmission ratio between the sprocket a39 and the sprocket B41 is less than 1, and the transmission ratio between the sprocket B41 and the sprocket C42 is 1: 1, the transmission ratio of the chain wheel C42 to the chain wheel D45 is less than 1; the gear ratio of the gear A23 to the gear B35 is 1: 1, under the common drive of electricity drive module A43, the velocity of motion of arc board A17 is greater than the velocity of motion of
The electric drive module A43 and the electric drive module B48 are both in the prior art, and the electric drive module A43 and the electric drive module B48 are both composed of a motor, a speed reducer and a control unit. Both the electric drive module a43 and the electric drive module B48 are electrically connected to the control system.
In the present invention, the speed of pressing the electrode paint into the regulating groove a2 from the press-in
The concave
The working process of the invention is as follows: in the initial state, the two
When the invention is used for coating the
The electrode paint is then continuously pressed into the regulating groove a2 at a constant speed through the
As the electrode paint continues to be pressed into the regulating groove a2, the electrode paint in the regulating groove a2 is laterally and uniformly pressed into the regulating groove C4 through the regulating groove B5; the liquid level of the electrode paint in the adjustment tank C4 increases uniformly in the lateral direction. When the electrode paint in the regulating groove C4 reaches the height of the notch of the communicating
If it is desired that the coating applied to the
The arc plate a17 moving toward the
When the arc plate a17 stops moving, the gear a23 stops rotating and the electric drive module a43 continues to operate. The electric drive module a43 continues to drive the shaft a26 to rotate through a series of transmissions, the shaft a26 drives the
At the same time, the electric drive module A43 continues to move the
When the electrode paint adhered to the
When the arc plate A17 is completely reset, the electrode paint is pressed into the adjusting groove A2 through the press-in
The arc plate A17 ensures that foreign particles mixed in the electrode coating can be effectively cleaned by cleaning the electrode coating in the
If the coating layer coated on the
After the film coating operation is completely finished, the control system controls the electric drive module B48 to stop running, the two
In conclusion, the beneficial effects of the invention are as follows: according to the invention, the two
According to the invention, the movement of the arc plate A17 in the
The invention automatically cleans the foreign matters in the
In addition, the arc plate A17 and the
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