CN117563886B - Water-based PVDF point coating device for lithium battery diaphragm - Google Patents
Water-based PVDF point coating device for lithium battery diaphragm Download PDFInfo
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- CN117563886B CN117563886B CN202410062528.5A CN202410062528A CN117563886B CN 117563886 B CN117563886 B CN 117563886B CN 202410062528 A CN202410062528 A CN 202410062528A CN 117563886 B CN117563886 B CN 117563886B
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- spot coating
- transmission arm
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- 238000000576 coating method Methods 0.000 title claims abstract description 163
- 239000011248 coating agent Substances 0.000 title claims abstract description 161
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 239000002033 PVDF binder Substances 0.000 title claims abstract description 16
- 229920002981 polyvinylidene fluoride Polymers 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 59
- 230000033001 locomotion Effects 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0245—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
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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
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- Coating Apparatus (AREA)
Abstract
The invention relates to the technical field of diaphragm coating, and particularly discloses a lithium battery diaphragm coating water-based PVDF spot coating device which comprises a spot coating table, an arm support, an electric sliding rail, a guide unit and a spot coating structure; the two-point synchronous spot coating is realized through the double coating gun heads, the two-point synchronous spot coating can be alternately carried out at two positions simultaneously, and the efficiency and the production speed are improved; the flexibility is higher, and the coating method is suitable for different coating requirements; the spacing of the coating gun heads can be adjusted, so that the range of coating point positions can be changed, and different coating requirements can be flexibly met; the whole structure is simple, the operation and adjustment are convenient, and the device is suitable for the requirements of different operators; and by means of the straight up and down movement mode, punctiform smear can be avoided.
Description
Technical Field
The invention relates to the technical field of diaphragm coating, in particular to a lithium battery diaphragm coating water-based PVDF spot coating device.
Background
In the structure of lithium batteries, the separator is one of the key inner layer components; the separator has the main function of separating the positive electrode from the negative electrode of the battery, preventing the two electrodes from being contacted and short-circuited, and has the function of passing electrolyte ions; the diaphragm material is non-conductive, and the physical and chemical properties of the diaphragm material have great influence on the performance of the battery; the existing lithium battery diaphragm coating water-based PVDF spot coating mechanism has serious spot smear and irregular shape in the use process, and the existing spot coating mechanism has single coating point position mode in use and can not be adjusted according to the requirement, so the lithium battery diaphragm coating water-based PVDF spot coating device is designed.
Disclosure of Invention
The invention aims to provide a lithium battery diaphragm water-based PVDF spot coating device for solving the problems in the background technology.
In order to solve the problems, the invention provides the following technical scheme: a lithium battery diaphragm water-based PVDF spot coating device comprises a spot coating table, an arm support, an electric sliding rail, a guide unit and a spot coating structure; the point coating table is of an H-shaped structure, the lengths of the front end and the rear end of the bottom are smaller than those of the front end and the rear end of the top, one end of the arm support is fixedly arranged in the middle of the left side wall of the point coating table, one end of the electric sliding rail is fixedly arranged at the other end of the arm support, the electric sliding rail is horizontally positioned above the point coating table, the guide unit is fixedly arranged at the front end and the rear end of the top of the point coating table, and the point coating structure is fixedly arranged on the electric sliding rail; the guide unit comprises two pairs of shaft plates, a pair of first guide rollers, a pair of limiting plates, a pair of roller frames, a second guide roller and a pair of springs; two pairs of the axle board one end is fixed respectively and is set up on the left and right sides wall at both ends around the platform is scribbled to the point, a pair of the activity is respectively set up between the axle board other end, a pair of first deflector roll upper wall is located the point respectively scribbles a platform upper wall top, a pair of limiting plate one end is fixed respectively and is welded on the left and right sides wall of platform rear end is scribbled to the point, and limiting plate other end middle part all is provided with the telescopic hole, roller frame one end is movable respectively runs through in the telescopic hole of limiting plate, the activity of second deflector roll sets up between the roller frame other end, and with the laminating of point scribbles a platform upper wall, a pair of the spring is movable set up respectively on roller frame one end, and is located the limiting plate below, the spring is compressed through the roller frame upward movement respectively.
Preferably, the pair of roller frames are of a Z-shaped structure, and one end of each roller frame is of a round rod-shaped structure.
Preferably, the dispensing structure comprises a pair of electric push rods, a dispensing shell, an adjusting seat, a pair of electromagnetic valves, a three-way pipe, a coating unit and a pair of coating gun heads; the utility model discloses a three-way pipe, including electric putter, coating unit, coating gun head, pipeline, solenoid valve, a pair of electric putter one end respectively symmetry fixed set up on the electric slide rail, and can move about with the help of the electric slide rail, the coating shell is a portal frame structure to the point, the coating shell upper wall is fixed to be set up in a pair of electric putter flexible end, it is equipped with the bearing to inlay near the front end in the coating shell left wall, the regulation seat both ends are fixed respectively to be set up between the coating shell both ends, and regulation seat middle part equidistance is provided with a plurality of positioning holes, a pair of the solenoid valve is fixed respectively to be set up in the coating shell upper wall, three-way pipe wherein both ends respectively with a pair of solenoid valve one end links to each other, coating unit movable arrangement is in the coating shell in the point, a pair of coating gun head can dismantle respectively and settle on the coating unit, and fixed through the jack bolt respectively, a pair of coating gun head links to each other with the solenoid valve other end through the pipeline respectively.
Preferably, the coating unit includes a first motor, a rotary table, a first driving arm, a first adjusting screw, three first nuts, a second adjusting screw, a swing arm, a pair of second nuts, a pair of second driving arms, and a pair of reciprocating columns; the first motor is fixedly arranged on the left side wall of the spot coating shell, the driving end is movably penetrated through the left side wall of the spot coating shell, the turntable is fixedly sleeved on the driving end of the first motor and is positioned in the spot coating shell, one end of the first transmission arm is movably connected onto the side wall of the turntable through a first bolt in an eccentric mode, one end of the first transmission arm is movably penetrated through the other end of the first transmission arm, three first nuts are respectively movably screwed onto the first transmission screw in a rotating mode, one end of the second transmission arm is close to the other end of the first transmission arm, one end of the second transmission arm is fixedly inserted into a bearing of the left side wall of the spot coating shell, the middle of the swing arm is movably sleeved on the second transmission arm, one end of the swing arm is movably sleeved on the other end of the first transmission screw, the swing arm is positioned between one pair of the first nuts, one end of the second transmission arm is movably sleeved on one end of the first transmission arm and is positioned on the left side and right side of the second transmission arm, one end of the first transmission arm is respectively limited by one first nut and is close to one end of the first transmission arm, one end of the first transmission arm is movably sleeved on the other end of the second transmission arm through one end of the second transmission arm, one end of the second transmission arm is movably sleeved on the other end of the second transmission arm through another reciprocating bolt, and the other end of the second transmission arm is movably sleeved on the other end of the first transmission arm through another end through another reciprocating bolt, and the other end is movably through another end of the first transmission arm is movably connected to the other end seat.
Preferably, one end of the coating gun head is detachably sleeved on the reciprocating column respectively and is fixed through a jacking bolt, a feeding hole is formed in the side wall of the coating gun head, and the feeding hole is connected with the electromagnetic valve through a pipeline.
Preferably, when the first motor drives the turntable to rotate, the first transmission arm reciprocally pulls the first adjusting screw rod to enable the two reciprocating columns to alternately lift and move.
Preferably, when the first motor drives the turntable to rotate for a certain position, the coating gun heads on the two reciprocating columns are aligned and parallel.
Preferably, the coating unit is capable of alternating spot coating or simultaneous spot coating.
The invention provides a water-based PVDF point coating device for a lithium battery diaphragm, which has the beneficial effects that:
1. according to the invention, synchronous spot coating of two points is realized through the double coating gun heads, and alternate coating can be carried out at two positions simultaneously, so that the efficiency and the production speed are improved; the flexibility is higher, and the coating method is suitable for different coating requirements;
2. the invention can adjust the interval of the coating gun heads, thereby changing the range of coating points and flexibly coping with different coating requirements;
3. the invention has simple integral structure, convenient operation and adjustment, does not need excessive expertise, and is suitable for the demands of different operators; and by means of the straight up and down movement mode, punctiform smear can be avoided.
Drawings
Fig. 1 is a schematic view of an assembly structure of the present invention.
Fig. 2 is a schematic view of an assembly structure of the spot coating structure of the present invention.
Fig. 3 is a schematic diagram of a split structure of the spot coating structure of the present invention.
Fig. 4 is a schematic view showing the assembly of the spot coating structure according to the present invention.
Fig. 5 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present invention.
Fig. 6 is a schematic view of a partial enlarged structure at B in fig. 4 according to the present invention.
Fig. 7 is a schematic view of a partial enlarged structure at C in fig. 4 according to the present invention.
Fig. 8 is a schematic view showing a coating dot display structure of the present invention.
In the figure: 1. dispensing table; 2. arm support; 3. an electric slide rail; 4. a guide unit; 42. a shaft plate; 43. a first guide roller; 44. a limiting plate; 45. a roller frame; 46. a second guide roller; 41. a spring; 5. dispensing a coating structure; 51. an electric push rod; 52. dispensing the shell; 53. an adjusting seat; 54. an electromagnetic valve; 55. a three-way pipe; 56. a coating unit; 560. a first motor; 561. a turntable; 562. a first transmission arm; 563. a first adjusting screw; 564. a first nut; 565. a second adjusting screw; 566. a swing arm; 567. a second nut; 568. a second transmission arm; 569. a reciprocating column; 57. a gun head; 58. and (5) pushing the bolt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a technical solution: a lithium battery diaphragm water-based PVDF spot coating device comprises a spot coating table 1, an arm support 2, an electric slide rail 3, a guide unit 4 and a spot coating structure 5; the point scribbles platform 1 and is H type structure, and both ends length is less than both ends length around the top around the bottom, cantilever crane 2 one end is fixed to be set up in the left side wall middle part of point scribble platform 1, electronic slide rail 3 one end is fixed to be set up on cantilever crane 2 other end, and electronic slide rail 3 level is located the point scribbles platform 1 top, the fixed setting of guide unit 4 is on both ends around the top of point scribble platform 1, the fixed setting of structure 5 is scribbled on electronic slide rail 3, can carry out steady support and installation guide unit 4 through point scribble platform 1, carry out unsettled support to electronic slide rail 3 and scribble platform 1 top through cantilever crane 2, can carry out spacing laminating to the diaphragm of introducing and scribble the platform 1 upper wall through guide unit 4, scribble the structure 5 to the diaphragm through the point and scribble.
As a further aspect of the present invention, the guide unit 4 includes two pairs of shaft plates 42, a pair of first guide rollers 43, a pair of stopper plates 44, a pair of roller frames 45, a second guide roller 46, and a pair of springs 41; one ends of the two pairs of shaft plates 42 are respectively fixedly arranged on the left side wall and the right side wall of the front end and the rear end of the dispensing table 1, and are mutually symmetrical, a pair of first guide rollers 43 are respectively movably arranged between the other ends of the shaft plates 42, the upper walls of the pair of first guide rollers 43 are respectively positioned above the upper walls of the dispensing table 1, one ends of the pair of limiting plates 44 are respectively fixedly welded on the left side wall and the right side wall of the rear end of the dispensing table 1, the middle parts of the other ends of the limiting plates 44 are respectively provided with a telescopic hole, the pair of roller frames 45 are of Z-shaped structures, one ends of the roller frames 45 are of round rod-shaped structures, one ends of the roller frames 45 respectively movably penetrate through the telescopic holes of the limiting plates 44 and are mutually symmetrical, the second guide rollers 46 are movably arranged between the other ends of the roller frames 45 and are attached to the upper walls of the dispensing table 1, the pair of springs 41 are respectively movably sleeved on one ends of the roller frames 45 and are positioned below the limiting plates 44, the springs 41 are respectively moved upwards through the roller frames 45 to compress, the first guide rollers 43 are arranged through the support of the shaft plates 42, the movement of the wall surfaces of the diaphragm is damaged by the edges of the dispensing table 1, the limiting plates through the limiting plates 44, the setting of the limiting plates 45 can enable the roller frames 45 to move, the diaphragm to pass through the lifting and lowering the second guide rollers 46 to move the diaphragm, and can not pass through the lifting and lowering the roller frames to be attached to the diaphragm 1.
As a further aspect of the present invention, the dispensing structure 5 includes a pair of electric push rods 51, a dispensing housing 52, an adjusting seat 53, a pair of solenoid valves 54, a three-way pipe 55, a coating unit 56, and a pair of coating gun heads 57; one end of each pair of electric push rods 51 is symmetrically and fixedly arranged on the electric slide rail 3 and can move left and right by means of the electric slide rail 3, the dispensing shell 52 is of a gate-type frame structure, the upper wall of the dispensing shell 52 is fixedly arranged on the telescopic ends of the pair of electric push rods 51, bearings are embedded near the front ends in the left side wall of the dispensing shell 52, two ends of each adjusting seat 53 are fixedly arranged between the two ends of the dispensing shell 52, a plurality of positioning holes are formed in the middle of each adjusting seat 53 at equal intervals, a pair of electromagnetic valves 54 are all flow valves, a pair of electromagnetic valves 54 are fixedly arranged on the upper wall of the dispensing shell 52, two ends of a three-way pipe 55 are respectively connected with one end of each of the pair of electromagnetic valves 54, a coating unit 56 is movably arranged in the dispensing shell 52, a pair of gun heads 57 are respectively detachably arranged on the coating units 56 and are respectively fixed by a jacking bolt 58, the pair of gun heads 57 are respectively connected with the other ends of the electromagnetic valves 54 through pipelines, the coating units 56 in the dispensing shell 52 can be driven to lift by the electric push rods 51, the gun heads 57 are enabled to have a certain height from a diaphragm, the coating heads 57 can alternately lift up and down, the two synchronous coating modes can be simultaneously realized by controlling the two synchronous coating gun heads 57 to be synchronously lifted by the two coating heads; the distance between the coating gun heads 57 can be adjusted by matching the adjusting seat 53 with the coating unit 56 according to actual demands, the flow of each coating can be set through the electromagnetic valve 54, the electromagnetic valve 54 is communicated in series through the three-way pipe 55, uniform feeding is realized, and the coating mode of alternate spot coating or synchronous spot coating is realized through the coating unit 56.
As a further aspect of the present invention, the coating unit 56 includes a first motor 560, a turntable 561, a first driving arm 562, a first adjusting screw 563, three first nuts 564, a second adjusting screw 565, a swing arm 566, a pair of second nuts 567, a pair of second driving arms 568, and a pair of reciprocating columns 569; the first motor 560 is fixedly arranged on the left side wall of the spot coating shell 52, the driving end is movably penetrated through the left side wall of the spot coating shell 52, the rotary disc 561 is fixedly sleeved on the driving end of the first motor 560 and positioned in the spot coating shell 52, one end of the first transmission arm 562 is eccentrically and movably connected on the side wall of the rotary disc 561 through a first bolt, one end of the first adjusting screw 563 is movably penetrated through the other end of the first transmission arm 562, three first nuts 564 are respectively movably screwed on the first adjusting screw 563, one end of the first nuts 564 is close to the other end of the first transmission arm 562, one end of the second adjusting screw 565 is fixedly inserted in a bearing on the left side wall of the spot coating shell 52, the middle part of the swinging arm 566 is movably sleeved on the second adjusting screw 565, one end of the swinging arm 566 is movably sleeved on the other end of the first adjusting screw 563 and positioned between one pair of the first nuts 564, one pair of second nuts 567 are respectively movably screwed on the second adjusting screws 565, one end of one second transmission arm 568 is movably sleeved on one end of a first adjusting screw 563 and is limited by one first nut 564 and is close to the first transmission arm 562, one end of the second transmission arm 568 at the other end is movably connected to the other end of the swing arm 566 by a second bolt, one end of a pair of reciprocating columns 569 is movably penetrated through the positioning holes of the adjusting seat 53 respectively, the other end of the reciprocating columns 569 is movably connected to the other end of the second transmission arm 568 by a third bolt respectively, the other end of the second transmission arm 568 is inclined relatively, the rotating disc 561 can be driven to rotate by the first motor 560, the eccentric reciprocating motion of the first transmission arm 562 is realized, the swing arm 566 can be limited by the second adjusting screw 565 and the second nut 567, the swing arm 566 can be moved according to the spacing of the gun head 57, finally, the distance between the two reciprocating columns 569 is realized, the position of the swing arm 566 can be adjusted through the first adjusting screw 563 and the first nut 564, the swing arm 566 is movably connected with the first transmission arm 562 and one of the second transmission arms 568, the two ends of the swing arm 566 can be driven to swing reciprocally through the push-pull reciprocating motion of the first transmission arm 562, and finally, the two reciprocating columns 569 are driven to do lifting alternate motion through the swing of the swing arm 566.
As a further scheme of the invention, one end of the coating gun head 57 is respectively and detachably sleeved on the reciprocating column 569 and is fixed by the jacking bolts 58, the side wall of the coating gun head 57 is provided with a feed inlet, and the feed inlet is connected with the electromagnetic valve 54 through a pipeline for designing connection requirements, so that the coating gun head is convenient to dismantle and replace.
As a further scheme of the present invention, when the first motor 560 drives the turntable 561 to rotate, the first driving arm 562 reciprocally pulls the first adjusting screw 563, so that the two reciprocating columns 569 alternately lift and move, which is used for designing transmission requirements, and realizing driving alternate dispensing.
As a further aspect of the present invention, when the first motor 560 drives the turntable 561 to rotate for a certain position, the coating gun heads 57 on the two reciprocating columns 569 are aligned in parallel, so as to limit the coating gun heads 57, so that the coating gun heads are aligned in parallel instead of alternating.
As a further aspect of the present invention, the coating unit 56 can perform alternate spot coating or simultaneous spot coating.
The detailed connection means are known in the art, and the following mainly describes the working principle and process, and the specific work is as follows.
Firstly, introducing a diaphragm from the rear end of the dispensing table 1, guiding the diaphragm through a first guide roller 43 between a pair of shaft plates 42 in a guiding unit 4, and pulling a second guide roller 46 upwards to enable the second guide roller 46 to lift and compress a spring 41 on a limit plate 44 by virtue of a roller frame 45; the diaphragm passes through the space between the first guide roller 43 and the second guide roller 46 at the rear end of the dispensing table 1, the diaphragm can be attached to the dispensing table 1 by the downward pressure of the second guide roller 46, and the diaphragm can be connected with other traction equipment by guiding out the diaphragm by the first guide roller 43 at the front end; simultaneously, the three-way pipe 55 is connected with a coated material supply pipeline, namely the point coating structure 5 can be driven to carry out coating; in the application process, the first motor 560 controlling the side wall of the dispensing shell 52 drives the turntable 561 to rotate circumferentially, and then drives the eccentrically connected first transmission arm 562 to push and pull the first adjusting screw 563 in a reciprocating manner, because the first adjusting screw 563 is limited on the swinging arm 566 through the first nut 564, both ends of the swinging arm 566 are driven to swing on the second adjusting screw 565 in a forward and reverse direction by means of the second nut 567, and the first adjusting screw 563 is movably connected with the first transmission arm 562 and one of the second transmission arms 568 respectively, so that the reciprocating column 569 is driven to alternately lift by limiting of the adjusting seat 53 against the reciprocating push-pull movement of the first transmission arm 562, and the reciprocating column 569 on the second transmission arm 568 connected with the first adjusting screw 563 is lifted by the reciprocating column 569 connected with one end of the swinging arm 566 through the second transmission arm 568; thereby realizing the alternate lifting of the two coating gun heads 57 which are limited and arranged by the jacking bolts 58, so that the two coating gun heads 57 can respectively and alternately contact with the diaphragm to carry out spot coating; the coated material is regulated in flow out of the supply by means of solenoid valve 54, when the dispensed material is in alternating spots; when the turntable 561 rotates for a certain stroke, the heights of the coating gun heads 57 on the two reciprocating columns 569 are horizontal, at the moment, after the motor is stopped, the two electric push rods 51 can be driven to extend and drive, the dispensing shell 52 is driven to descend, so that the two coating gun heads 57 can be used together for coating, and at the moment, the coating points are two points together; the coating range can be changed along with the conveying and traction of the diaphragm, and the electric slide rail 3 on the arm support 2 is driven to drive the spot coating structure 5 to transversely move to adjust the range of the spot coating width; according to the different coating points, the position of the swing arm 566 on the second adjusting screw 565 can be adjusted, and the position of the corresponding adjusting hole of one reciprocating column 569 on the adjusting seat 53 can be adjusted by limiting through two second nuts 567, namely the distance between the two reciprocating columns 569 is adjusted; and the position of the swing arm 566 is adjusted, the connection position between one end of the swing arm 566 and the first adjusting screw 563 is also limited by adjusting the two first nuts 564.
As shown in fig. 8, the three dot position dot coating displays are divided into an upper layer, a middle layer and a lower layer, wherein the upper layer is a large-interval two-dot synchronous dot coating, the middle layer is an alternate dot coating with a certain interval, and the lower layer is a small-interval multi-dot coating.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a lithium cell diaphragm scribbles waterborne PVDF point and scribbles device which characterized in that: comprises a spot coating table (1), an arm support (2), an electric slide rail (3), a guide unit (4) and a spot coating structure (5);
the spot coating table (1) is of an H-shaped structure, the lengths of the front end and the rear end of the bottom are smaller than those of the front end and the rear end of the top, one end of the arm support (2) is fixedly arranged in the middle of the left side wall of the spot coating table (1), one end of the electric sliding rail (3) is fixedly arranged on the other end of the arm support (2), the electric sliding rail (3) is horizontally arranged above the spot coating table (1), the guide unit (4) is fixedly arranged on the front end and the rear end of the top of the spot coating table (1), and the spot coating structure (5) is fixedly arranged on the electric sliding rail (3);
the guide unit (4) comprises two pairs of shaft plates (42), a pair of first guide rollers (43), a pair of limiting plates (44), a pair of roller frames (45), a second guide roller (46) and a pair of springs (41);
one ends of the two pairs of shaft plates (42) are respectively fixedly arranged on the left side wall and the right side wall of the front end and the rear end of the spot coating table (1), a pair of first guide rollers (43) are respectively movably arranged between the other ends of the shaft plates (42), the upper walls of the first guide rollers (43) are respectively positioned above the upper walls of the spot coating table (1), one ends of the limiting plates (44) are respectively fixedly welded on the left side wall and the right side wall of the rear end of the spot coating table (1), the middle parts of the other ends of the limiting plates (44) are respectively provided with a telescopic hole, one ends of the roller frames (45) respectively movably penetrate through the telescopic holes of the limiting plates (44), the second guide rollers (46) are movably arranged between the other ends of the roller frames (45) and are attached to the upper walls of the spot coating table (1), the pair of springs (41) are respectively movably sleeved on one ends of the roller frames (45) and are positioned below the limiting plates (44), and the springs (41) are respectively moved upwards through the roller frames (45) to compress;
the dispensing structure (5) comprises a pair of electric push rods (51), a dispensing shell (52), an adjusting seat (53), a pair of electromagnetic valves (54), a three-way pipe (55), a coating unit (56) and a pair of coating gun heads (57);
one end of each pair of electric push rods (51) is symmetrically and fixedly arranged on each electric slide rail (3), the electric slide rails (3) can be used for moving left and right, each spot coating shell (52) is of a gate-type frame structure, the upper wall of each spot coating shell (52) is fixedly arranged on a pair of telescopic ends of each electric push rod (51), a bearing is embedded near the front end in the left side wall of each spot coating shell (52), two ends of each adjusting seat (53) are fixedly arranged between two ends of each spot coating shell (52), a plurality of position adjusting holes are formed in the middle of each adjusting seat (53) at equal intervals, a pair of electromagnetic valves (54) are fixedly arranged on the upper wall of each spot coating shell (52), two ends of each three-way pipe (55) are respectively connected with one end of each electromagnetic valve (54), each coating unit (56) is movably arranged in each spot coating shell (52), a pair of coating gun heads (57) are respectively detachably arranged on each coating unit (56), and are respectively fixed through top bolts (58), and each pair of coating gun heads (57) are respectively connected with one electromagnetic valve (54) in a close mode;
the coating unit (56) comprises a first motor (560), a turntable (561), a first transmission arm (562), a first adjusting screw (563), three first nuts (564), a second adjusting screw (565), a swinging arm (566), a pair of second nuts (567), a pair of second transmission arms (568) and a pair of reciprocating columns (569);
the first motor (560) is fixedly arranged on the left side wall of the dispensing shell (52), the driving end is movably penetrated through the left side wall of the dispensing shell (52), the rotary disc (561) is fixedly sleeved on the driving end of the first motor (560) and is positioned in the dispensing shell (52), one end of the first transmission arm (562) is eccentrically and movably connected on the side wall of the rotary disc (561) through a first bolt, one end of the first transmission arm (563) is movably penetrated through the other end of the first transmission arm (562), three first nuts (564) are respectively and movably connected on the first transmission arm (563) in a screwing mode, one end of the first nuts (564) is close to the other end of the first transmission arm (562), one end of the second transmission arm (565) is fixedly inserted in a bearing on the left side wall of the dispensing shell (52), the middle of the swing arm (566) is movably sleeved on the second transmission arm (565), one end of the swing arm (566) is movably sleeved on the other end of the first transmission arm (563), one pair of the first nuts (563) is positioned between the first nuts (563), one end of the first nuts (567) is rotatably connected on the first ends (568) in a sleeving mode, one end of the first nuts (568) is movably sleeved on the two sides of the first transmission arm (568) in a sliding mode, one end of the second transmission arm (568) at the other end is movably connected to the other end of the swing arm (566) through a second bolt, one ends of the pair of reciprocating columns (569) respectively penetrate through the positioning holes of the adjusting seat (53) in a movable mode, the other ends of the reciprocating columns (569) are respectively and movably connected to the other end of the second transmission arm (568) through third bolts, and the other ends of the second transmission arm (568) incline.
2. The lithium battery separator coating water-based PVDF spot coating device according to claim 1, wherein: the pair of roller frames (45) are of Z-shaped structures, and one end of each roller frame is of a round rod-shaped structure.
3. The lithium battery separator coating water-based PVDF spot coating device according to claim 2, wherein: one end of the coating gun head (57) is detachably sleeved on the reciprocating column (569) and is fixed through a jacking bolt (58), a feeding hole is formed in the side wall of the coating gun head (57), and the feeding hole is connected with the electromagnetic valve (54) through a pipeline.
4. The lithium battery separator coating water-based PVDF spot coating device according to claim 3, wherein: when the first motor (560) drives the turntable (561) to rotate, the first transmission arm (562) reciprocally pulls the first adjusting screw (563) to enable the two reciprocating columns (569) to alternately lift and move.
5. The lithium battery separator coating water-based PVDF spot coating device according to claim 4, wherein: when the first motor (560) drives the turntable (561) to rotate for a certain position, the coating gun heads (57) on the two reciprocating columns (569) are aligned flush.
6. The lithium battery separator coating water-based PVDF spot coating device according to claim 5, wherein: the coating unit (56) is capable of alternating spot coating or simultaneous spot coating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410062528.5A CN117563886B (en) | 2024-01-16 | 2024-01-16 | Water-based PVDF point coating device for lithium battery diaphragm |
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| CN202410062528.5A CN117563886B (en) | 2024-01-16 | 2024-01-16 | Water-based PVDF point coating device for lithium battery diaphragm |
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| CN117563886B true CN117563886B (en) | 2024-03-19 |
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| CN111732858A (en) * | 2019-03-19 | 2020-10-02 | 河北金力新能源科技股份有限公司 | Oil-based PVDF spraying slurry, diaphragm coated with oil-based PVDF spraying slurry, and preparation method and application of diaphragm |
| CN212702706U (en) * | 2020-07-08 | 2021-03-16 | 合肥东昇机械科技有限公司 | Water-based PVDF spot coating mechanism for lithium battery diaphragm coating |
| WO2021093572A1 (en) * | 2019-11-11 | 2021-05-20 | 江苏厚生新能源科技有限公司 | Aqueous pvdf paste having strong binding property, preparation method therefor, and application thereof |
| CN114833017A (en) * | 2022-02-28 | 2022-08-02 | 上海福赛特智能设备有限公司 | Dispensing coating device and control method thereof |
| CN115025924A (en) * | 2022-02-28 | 2022-09-09 | 上海福赛特智能设备有限公司 | Lithium battery diaphragm dispensing and coating device |
| CN217615693U (en) * | 2022-04-20 | 2022-10-21 | 惠州友恒锂电科技有限公司 | Water-based PVDF point coating device is scribbled to lithium battery diaphragm |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10763481B2 (en) * | 2017-09-09 | 2020-09-01 | Soteria Battery Innovation Group Inc. | Lithium storage device with improved safety architecture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111732858A (en) * | 2019-03-19 | 2020-10-02 | 河北金力新能源科技股份有限公司 | Oil-based PVDF spraying slurry, diaphragm coated with oil-based PVDF spraying slurry, and preparation method and application of diaphragm |
| WO2021093572A1 (en) * | 2019-11-11 | 2021-05-20 | 江苏厚生新能源科技有限公司 | Aqueous pvdf paste having strong binding property, preparation method therefor, and application thereof |
| CN212702706U (en) * | 2020-07-08 | 2021-03-16 | 合肥东昇机械科技有限公司 | Water-based PVDF spot coating mechanism for lithium battery diaphragm coating |
| CN114833017A (en) * | 2022-02-28 | 2022-08-02 | 上海福赛特智能设备有限公司 | Dispensing coating device and control method thereof |
| CN115025924A (en) * | 2022-02-28 | 2022-09-09 | 上海福赛特智能设备有限公司 | Lithium battery diaphragm dispensing and coating device |
| CN217615693U (en) * | 2022-04-20 | 2022-10-21 | 惠州友恒锂电科技有限公司 | Water-based PVDF point coating device is scribbled to lithium battery diaphragm |
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| CN117563886A (en) | 2024-02-20 |
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