CN217615693U

CN217615693U - Water-based PVDF point coating device is scribbled to lithium battery diaphragm

Info

Publication number: CN217615693U
Application number: CN202220927009.7U
Authority: CN
Inventors: 门玉文
Original assignee: Huizhou Youheng Lithium Battery Technology Co ltd
Current assignee: Huizhou Youheng Lithium Battery Technology Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-10-21
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a device is scribbled to lithium battery diaphragm water-coating PVDF point, comprising a base plate, the top welded mounting of bottom plate has first dead lever and second dead lever, and the top welded mounting of first dead lever and second dead lever has the roof, and the corresponding lateral wall of first dead lever is provided with adjustment mechanism, and the second dead lever corresponds the lateral wall and rotates and install the roller of scribbling a little, and wherein a set of lateral wall welded mounting of second dead lever has the motor. This aqueous PVDF point coating device is scribbled to lithium cell diaphragm, through the point that sets up evenly distributed on the point coating roller scribbles the head, the use of board is scribbled to the cooperation point simultaneously for the coating keeps overhead at the point with the contact point of point coating roller, the effectual device of having avoided scribbles the in-process at the point, it is serious to appear punctiform smear, the anomalous condition of punctiform shape appears, also avoided appearing punctiform fracture and being the hollow condition to a certain extent simultaneously and appearing, the quality of scribbling has been guaranteed, the normal operating of operation on next step has been guaranteed.

Description

Water-based PVDF point coating device is scribbled to lithium battery diaphragm

Technical Field

The utility model relates to a technical field is scribbled to the point, especially relates to a lithium cell diaphragm is scribbled waterborne PVDF point and is scribbled device.

Background

In the construction of lithium batteries, the separator is one of the key internal components. The performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, directly influences the capacity, circulation, safety performance and other characteristics of the battery, and the diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery. The separator has a main function of separating the positive electrode and the negative electrode of the battery to prevent short circuit caused by contact between the two electrodes, and also has a function of allowing electrolyte ions to pass. The separator material is non-conductive, and the physical and chemical properties of the separator have a great influence on the performance of the battery. The development of technology is changing day by day, the lithium battery industry is also making continuous progress, and the process of the diaphragm layer which is important for the lithium battery is also further improved.

The existing point coating mechanism for the water-based PVDF coated on the lithium battery diaphragm has the defects that point-like smear is serious and is in an irregular shape in the using process, the point-like fracture is easy to occur and the hollow phenomenon is caused, so that the production quality of the lithium battery diaphragm is influenced, and therefore, the point coating device for the water-based PVDF coated on the lithium battery diaphragm is provided.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a lithium cell diaphragm is scribbled waterborne PVDF and is scribbled device for solve foretell problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a device is scribbled to waterborne PVDF point is scribbled to lithium cell diaphragm, comprising a base plate, first dead lever and second dead lever are installed to the top welding of bottom plate, the top welding of first dead lever and second dead lever installs the roof, the corresponding lateral wall of first dead lever is provided with adjustment mechanism, the second dead lever corresponds the lateral wall and rotates and install the point and scribble the roller, one of them a set of lateral wall welding of second dead lever installs the motor, the output of motor transversely runs through the second dead lever and with the pivot welded connection setting of point scribbling the roller, the filling tube is installed to the other a set of outside welding of second dead lever, the filling tube transversely runs through the second dead lever and rotates with the pivot of point scribbling the roller and is connected the setting, the filling tube sets up with the inside intercommunication of point scribbling the roller, the welding of one side outer wall of bottom plate installs the mounting bracket, the mounting bracket is "L" column structure setting, the corresponding lateral wall of mounting bracket is provided with the coating roller.

Preferably, the second fixing rod is located at the center of the bottom plate, and the first fixing rods are located at two sides of the second fixing rod.

Preferably, adjustment mechanism includes the spout, the threaded rod, the slider, first gear, the second gear, the fixed block, connecting rod and biaxial motor, the spout has been seted up to the corresponding lateral wall of first dead lever, the inboard top of spout is rotated with the bottom and is installed the threaded rod, the threaded rod vertically runs through the spout and extends to the top outside of roof, the threaded rod is located roof top outside one end welded mounting and has the second gear, the top welded mounting of roof has biaxial motor, biaxial motor's output welded mounting has the connecting rod, the free end welded mounting of connecting rod has first gear, first gear sets up with the meshing of second gear, the built-in slider of spout, the slider cover is located on the threaded rod and is set up with threaded rod threaded connection, the corresponding lateral wall of slider rotates installs the regulating roller.

Preferably, the top of roof is located the front and back side welded mounting of biax motor and has the fixed block, the fixed block cover locate on the connecting rod and with connecting rod sliding connection setting.

Preferably, the top of the bottom plate is located under the spot coating roller and is welded with an electric push rod, and the telescopic end of the electric push rod is welded with a spot coating plate.

Preferably, the point coating roller is of a hollow structure, the outer side wall of the point coating roller is welded with point coating heads, and the number of the point coating heads is a plurality of groups and is arranged at equal intervals.

Preferably, the top welding of mounting bracket is installed and is installed the installation pole, and the corresponding lateral wall of installation pole rotates installs the tension roll, and the interval department of first dead lever and second dead lever is located one side welding installation of tension roll and is equipped with the stoving board, stoving intralamellar heating wire, and the fan is installed in the top welding of stoving board, and the output and the stoving board intercommunication of fan set up.

Compared with the prior art, the beneficial effects of the utility model are that: this aqueous PVDF point coating device is scribbled to lithium cell diaphragm, through the point that sets up evenly distributed on the point coating roller scribbles the head, the use of board is scribbled to the cooperation point simultaneously for the coating keeps overhead at the point with the contact point of point coating roller, the effectual device of having avoided scribbles the in-process at the point, it is serious to appear punctiform smear, the anomalous condition of punctiform shape appears, also avoided appearing punctiform fracture and being the hollow condition to a certain extent simultaneously and appearing, the quality of scribbling has been guaranteed, the normal operating of operation on next step has been guaranteed.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the chute position structure of the present invention;

fig. 3 is the schematic diagram of the position structure of the drying plate of the present invention.

In the figure: 1. a top plate; 2. a tension roller; 3. mounting a rod; 4. a coating roll; 5. a mounting frame; 6. a first fixing lever; 7. a second fixing bar; 8. a motor; 9. a base plate; 10. a double-shaft motor; 11. a connecting rod; 12. a fixed block; 13. a first gear; 14. a second gear; 15. a threaded rod; 16. a slider; 17. a feed tube; 18. spot coating a roller; 19. a chute; 20. an electric push rod; 21. spot coating a plate; 22. drying the plate; 23. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example (b): referring to fig. 1-3, the utility model provides a technical scheme, a PVDF point coating device for coating water on lithium battery diaphragm, which comprises a bottom plate 9, a first fixing rod 6 and a second fixing rod 7 are welded on the top of the bottom plate 9, the second fixing rod 7 is positioned in the center of the bottom plate 9, the first fixing rod 6 is positioned on both sides of the second fixing rod 7, a top plate 1 is welded on the top of the first fixing rod 6 and the top of the second fixing rod 7, an adjusting mechanism is arranged on the corresponding side wall of the first fixing rod 6, the adjusting mechanism comprises a chute 19, a threaded rod 15, a slider 16, a first gear 14, a second gear 13, a fixing block 12, a connecting rod 11 and a double-shaft motor 10, the chute 19 is arranged on the corresponding side wall of the first fixing rod 6, the threaded rod 15 is rotatably arranged on the top and the bottom of the chute 19, the threaded rod 15 longitudinally penetrates through the chute 19 and extends to the outside of the top plate 1, a second gear 14 is welded and installed at one end, located at the outer side of the top plate 1, of the threaded rod 15, a double-shaft motor 10 is welded and installed at the top of the top plate 1, a connecting rod 11 is welded and installed at the output end of the double-shaft motor 10, a first gear 13 is welded and installed at the free end of the connecting rod 11, the first gear 13 is meshed with the second gear 14, fixed blocks 12 are welded and installed at the front side and the rear side of the double-shaft motor 10 at the top of the top plate 1, the fixed blocks 12 are sleeved on the connecting rod 11 and are arranged in a sliding connection with the connecting rod 11, a sliding block 16 is arranged in a sliding groove 19, the sliding block 16 is sleeved on the threaded rod 15 and is in threaded connection with the threaded rod 15, an adjusting roller is rotatably installed at the corresponding side wall of the sliding block 16, a point coating roller 18 is rotatably installed at the corresponding side wall of the second fixed rod 7, the point coating roller 18 is arranged in a hollow structure, point coating heads are welded and installed at the outer side wall of the point coating roller 18, the plurality of groups and are arranged at equal intervals, the spot coating heads which are uniformly distributed are arranged on the spot coating roller 18, and the spot coating plate 21 is matched for use, so that the contact point between coating and the spot coating roller 18 is kept on the spot coating head, the phenomenon that spot smear is serious and the spot shape is irregular in the spot coating process of the device is effectively avoided, the phenomenon that the spot is broken and hollow is avoided to a certain extent, the spot coating quality is ensured, and the normal operation of the next operation is ensured, the motor 8 is welded and installed on the outer side wall of one group of the second fixing rods 7, the output end of the motor 8 transversely penetrates through the second fixing rods 7 and is welded and connected with the rotating shaft of the spot coating roller 18, the feeding pipe 17 is welded and installed on the outer side of the other group of the second fixing rods 7, and the feeding pipe 17 transversely penetrates through the second fixing rods 7 and is rotatably connected with the rotating shaft of the spot coating roller 18, charging tube 17 and the inside intercommunication setting of roller 18 are scribbled to the point, bottom plate 9's top is located the point and scribbles under roller 18 welding and install electric putter 20, electric putter 20's flexible end welding installation is scribbled a little board 21, one side outer wall welding of bottom plate 9 installs mounting bracket 5, mounting bracket 5 is "L" column structure setting, mounting bracket 5's the corresponding lateral wall is provided with coating roller 4, mounting bracket 5's top welding is installed installation pole 3, the corresponding lateral wall of installation pole 3 rotates installs tension roller 2, the interval department of first dead lever 6 and second dead lever 7 is located one side welding installation of tension roller 2 and is dried plate 22, the built-in heating wire of dried plate 22, the top welding of dried plate 22 installs fan 23, the output of fan 23 and the setting of drying plate 22 intercommunication.

When in use: when the device is used, a coating roll needing spot coating is preferentially placed on the coating roller 4, the coating is wound on the top of the tension roller 2 and penetrates through the bottom of the adjusting roller, the spot coating plate 21 and the auxiliary roller are horizontally arranged by preferentially driving the electric push rod 20, the coating is contacted with the spot coating plate 21, the spot coating plate 21 is lifted to be contacted with the spot coating roller 18, the motor 8 is driven, an external feeding pipe is used for feeding the spot coating roller 18, the spot coating roller 18 rotates to be contacted with the coating for spot coating, and drying and shaping are carried out below the drying plate 22 after the coating is spot coated.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium cell diaphragm scribbles waterborne PVDF point and scribbles device, comprising a base plate (9), a serial communication port, first dead lever (6) and second dead lever (7) are installed in the top welding of bottom plate (9), roof (1) are installed in the top welding of first dead lever (6) and second dead lever (7), the corresponding lateral wall of first dead lever (6) is provided with adjustment mechanism, second dead lever (7) correspond the lateral wall and rotate and install some coating roller (18), wherein a set of lateral wall welded mounting of second dead lever (7) has motor (8), the output of motor (8) transversely runs through second dead lever (7) and with the pivot welded connection setting of point coating roller (18), feed pipe (17) are installed in another a set of outside welded mounting of second dead lever (7), feed pipe (17) transversely run through second dead lever (7) and rotate with the pivot of point coating roller (18) and be connected the setting, feed pipe (17) and point coating roller (18) inside intercommunication setting, one side outer wall welded mounting bracket (5) of bottom plate (9) are installed, it is "L" form structure to scribble mounting bracket (4) to be provided with coating roller (4).

2. The PVDF spot-coating device for lithium battery separator coating water according to claim 1, wherein the second fixing rod (7) is located in the middle of the bottom plate (9), and the first fixing rods (6) are located on both sides of the second fixing rod (7).

3. The PVDF spot coating device for the lithium battery diaphragm water coating according to claim 1, wherein the adjusting mechanism comprises a sliding groove (19), a threaded rod (15), a sliding block (16), a first gear (13), a second gear (14), a fixed block (12), a connecting rod (11) and a double-shaft motor (10), the sliding groove (19) is formed in the corresponding side wall of the first fixed rod (6), the threaded rod (15) is installed on the top portion and the bottom portion of the inner side of the sliding groove (19) in a rotating mode, the threaded rod (15) longitudinally penetrates through the sliding groove (19) and extends to the outer side of the top portion of the top plate (1), the second gear (14) is installed at one end, located on the outer side of the top portion of the top plate (1), of the double-shaft motor (10) is installed on the top portion of the top plate (1) in a welding mode, the connecting rod (11) is installed on the output end of the double-shaft motor (10) in a welding mode, the first gear (13) is meshed with the second gear (14), the sliding groove (19) is internally provided with the sliding block (16), the sliding block (16) is sleeved on the threaded rod (15) and is connected with the threaded rod (15) in a threaded mode, and the adjusting roller (16) is installed on the corresponding side wall.

4. The lithium battery separator water-coating PVDF spot-coating device according to claim 3, wherein the top of the top plate (1) is positioned at the front side and the rear side of the double-shaft motor (10) and is welded with a fixing block (12), and the fixing block (12) is sleeved on the connecting rod (11) and is arranged in a sliding connection with the connecting rod (11).

5. The device for coating the water-soluble PVDF on the lithium battery diaphragm as recited in claim 1, wherein the electric push rod (20) is welded and installed on the top of the bottom plate (9) right below the spot coating roller (18), and the spot coating plate (21) is welded and installed on the telescopic end of the electric push rod (20).

6. The PVDF spot-coating device for coating the water on the lithium battery diaphragm as recited in claim 1, wherein the spot-coating roller (18) is arranged in a hollow structure, the spot-coating heads are welded on the outer side wall of the spot-coating roller (18), and the number of the spot-coating heads is a plurality of groups and are arranged at equal intervals.

7. The lithium battery separator water-coating PVDF spot coating device according to claim 1, wherein a mounting rod (3) is welded and mounted at the top of the mounting frame (5), a tension roller (2) is rotatably mounted on a corresponding side wall of the mounting rod (3), a drying plate (22) is welded and mounted on one side of the tension roller (2) at the interval between the first fixing rod (6) and the second fixing rod (7), an electric heating wire is arranged in the drying plate (22), a fan (23) is welded and mounted at the top of the drying plate (22), and the output end of the fan (23) is communicated with the drying plate (22).