CN216678682U - Improve antistatic material coating device of antistatic effect - Google Patents

Abstract

An antistatic material coating device for improving antistatic effect comprises an antistatic material circulating mechanism, a coating mechanism and a coating rack; the antistatic material circulating mechanism comprises an antistatic material liquid storage tank, a pneumatic diaphragm pump and a filter, and the coating mechanism comprises an upper roller assembly, a lower roller assembly, a coating box, a spray pipe and a nozzle; the antistatic material liquid storage tank is fixedly arranged at the bottom in the coating rack, and the pneumatic diaphragm pump and the filter are fixedly arranged on the coating rack through mounting plates welded at the lower part of the outer side of the coating rack. The antistatic material coating device for improving the antistatic effect is reasonable in structural design, the circulation flow of the antistatic material liquid can be adjusted by adjusting the air source pressure of the pneumatic diaphragm pump, the antistatic material liquid can be collected and recycled, the antistatic material liquid is uniformly coated, the coating quality of a product to be coated is improved, the antistatic effect is improved, and the application prospect is wide.

Description

Improve antistatic material coating device of antistatic effect

Technical Field

The utility model relates to the technical field of coating, in particular to an antistatic material coating device for improving an antistatic effect.

Background

Any object has static charge, which can be negative or positive, and the accumulation of static charge affects or even endangers life or industrial production. The antistatic shoes are common in life, and are working shoes worn in production workshops and high-grade laboratories of microelectronic industries such as electronic semiconductor devices, electronic computers, electronic communication and integrated circuits and the like for reducing or eliminating electrostatic hazards.

To further enhance the antistatic effect, antistatic agents are often applied to the surface of the article to reduce static buildup. At present, the devices for coating antistatic materials in the prior art have the following problems: 1. the coating thickness of the antistatic material is uneven, so that the antistatic effect and the qualification rate of the product are influenced; 2. the slurry of the antistatic material flowing down is not collected, resulting in a waste of the antistatic material. Therefore, it is necessary to develop an antistatic material coating apparatus for improving an antistatic effect to solve the above technical problems.

Chinese patent application No. CN202023087672.0 discloses a roll board coating device, the purpose is through putting into the cold-rolled steel sheet between the guide block, can lead the steel sheet this moment, avoids the steel sheet to take place the condition of wandering away, does not solve the problem of the coating thickness inequality of antistatic material coating device, the waste of antistatic material and solves.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects, the utility model aims to provide the antistatic material coating device for improving the antistatic effect, the structural design is reasonable, the circulation flow of the antistatic material liquid can be adjusted by adjusting the air source pressure of the pneumatic diaphragm pump, the antistatic material liquid can be collected and recycled, the antistatic material liquid is uniformly coated, the coating quality of a product to be coated is improved, the antistatic effect is improved, and the application prospect is wide.

The technical scheme is as follows: an antistatic material coating device for improving antistatic effect comprises an antistatic material circulating mechanism, a coating mechanism and a coating rack; the antistatic material circulating mechanism comprises an antistatic material liquid storage tank, a pneumatic diaphragm pump and a filter, and the coating mechanism comprises an upper roller assembly, a lower roller assembly, a coating box, a spray pipe and a nozzle; the device comprises a coating rack, a pneumatic diaphragm pump, a filter, a spray pipe and a pneumatic diaphragm pump, wherein the antistatic material liquid storage tank is fixedly arranged at the bottom in the coating rack, the pneumatic diaphragm pump and the filter are fixedly arranged on the coating rack through a mounting plate welded at the lower part of the outer side of the coating rack, the input end of the pneumatic diaphragm pump is connected with the antistatic material liquid storage tank through a pipeline I, the output end of the pneumatic diaphragm pump is connected with the input end of the filter through a pipeline II, and the output end of the filter is connected with one end of the spray pipe through a pipeline III; an upper roller assembly and a lower roller assembly which are opposite up and down are horizontally arranged at the upper part in the coating rack, the upper roller assembly consists of a plurality of upper roller shafts, the lower roller assembly consists of a plurality of lower roller shafts, a channel is formed between the upper roller assembly and the lower roller assembly, the coating box is arranged at the lower side of the channel and accommodates at least 1 lower roller shaft therein, a feed inlet and a discharge outlet which are opposite to the channel are arranged on the coating rack, a spray pipe is arranged above the coating box and the upper roller shafts, one end of the spray pipe, facing the coating box, is provided with a nozzle, the nozzle comprises a nozzle body, a limiting assembly and an anti-splashing assembly, and the nozzle body is arranged at one end of the spray pipe, facing the coating box, and is communicated with the spray pipe; the nozzle body overcoat is equipped with and is used for carrying out spacing subassembly with nozzle main part, spray tube, the cover is equipped with the subassembly that splashes of preventing that is used for preventing antistatic material splashes on the spacing subassembly.

The antistatic material coating device for improving the antistatic effect has reasonable structural design, antistatic material liquid is arranged in an antistatic material liquid storage tank, the input end of a pneumatic diaphragm pump is connected with the antistatic material liquid storage tank, the antistatic material liquid is pumped into a filter through the pneumatic diaphragm pump, the circulation flow of the antistatic material liquid can be conveniently adjusted by adjusting the air source pressure of the pneumatic diaphragm pump, after the antistatic material liquid is filtered by the filter, the antistatic material liquid enters a spray pipe from the output end of the filter through a pipeline III, the antistatic material liquid is sprayed through a nozzle, a product to be coated enters a channel from a feed inlet, an upper roll shaft assembly and a lower roll shaft assembly rotate to drive the product to be coated to advance, when the product to be coated advances above a coating box, the upper surface of the product to be coated is coated to be coated by spray coating through the nozzle and rolling coating through the upper roll shaft, the flowing antistatic material liquid flows into the coating box, the lower roller in the coating box rotates to enable the antistatic material in the coating box to be coated on the lower surface of a product to be coated, redundant antistatic material coated on the product to be coated flows back to the antistatic material liquid storage tank through the rolling of the upper roller and the lower roller, after the antistatic material in the coating box is full of liquid, overflowing antistatic material liquid flows back to the antistatic material liquid storage tank through the lower rollers on two sides of the coating box, and the antistatic material liquid in the antistatic material liquid storage tank is extracted through the pneumatic diaphragm pump again so as to be recycled.

Through the design of the antistatic material circulating mechanism, the problem of sedimentation of the antistatic material liquid is effectively solved, and impurities are subjected to the process through the filter in the circulating process of the antistatic material liquid, so that the coating quality of products to be coated is improved, and the antistatic effect is improved.

Through the design of coating mechanism, every is gone up the roller, the roller all includes the pivot and follows a plurality of guide wheels and drive pivot pivoted motor that the pivot axial set up down, through last roller, the epaxial guide wheel of roller sets up relatively from top to bottom down, go up the roller subassembly, the roller subassembly down, the coating box, the spray tube, the cooperation between the nozzle, the uneven problem of antistatic material liquid coating has not only been solved effectively, still realized treating the material loading of coating goods, be favorable to the unloading, the collection circulation of antistatic material liquid.

Further, foretell improve antistatic material coating device of antistatic effect, the structure is opened for the top to the coating box, the opening horizontal plane of coating box is less than the passageway, is located the last roller of the delivery side of coating box, lower roller set up as the roller that absorbs water.

The coating box is designed so that redundant antistatic materials coated on a product to be coated flow back to the antistatic material liquid storage box through the upper roller shaft, the lower roller shaft and the water absorption roller shaft, and after the antistatic material liquid in the coating box is full of liquid, overflowing antistatic material liquid can flow back to the antistatic material liquid storage box through the lower roller shafts on two sides of the coating box.

Furthermore, the limiting component of the antistatic material coating device for improving the antistatic effect at least comprises a horizontal end and a vertical end which are integrally formed, wherein an opening is formed in the vertical end, the outer contour of the opening is matched with the outer contour of a bump arranged on the spray pipe, and at least part of the bump extends into the opening; the upper surface of the horizontal end is tightly attached to the lower surface of the large-diameter end of the nozzle body, the inner wall of the horizontal end is tightly attached to the outer circumferential surface of the small-diameter end of the nozzle body, and the height of the large-diameter end is equal to the distance between the opening and the horizontal end.

Through spacing subassembly, guaranteed the sealing connection of spray tube with the nozzle, avoided antistatic material liquid to leak, the life of extension nozzle, simultaneously, be convenient for install, dismantle and maintain the nozzle.

Further, foretell antistatic material coating device who improves antistatic effect, prevent splashing the subassembly and establish the protection casing on spacing subassembly including the cover, the protection casing comprises integrative link, protection end, the inner wall of link with the outer periphery of vertical end is hugged closely, there is one to be the annular clearance of circle between protection end and the horizontal end, the protection is served and has been seted up an air inlet, the air inlet is through setting up accept the chamber between link and the horizontal end with the clearance intercommunication.

The protective cover is provided with an air inlet, and gas ejected from the gap is trumpet-shaped, so that a gas protective barrier can be formed, the flying of the antistatic material liquid can be fully suppressed, and the uniform coating of the antistatic material liquid is facilitated.

Further, foretell antistatic material coating device who improves antistatic effect, the vertical end still sets firmly an extension end, it is located to extend the end under the link.

Furthermore, according to the antistatic material coating device for improving the antistatic effect, the plurality of detachable filter plates are horizontally arranged inside the antistatic material liquid storage tank.

Through being provided with a plurality of removable filter at the inside level of antistatic material liquid reserve tank, can carry out preliminary filtration to antistatic material liquid in the antistatic material liquid reserve tank.

Further, foretell antistatic material coating device who improves antistatic effect, the filter includes filter housing, cyclic annular filter core, filter housing is hollow structure, the input of filter sets up in filter housing's upper portion, the output of filter sets up in filter housing's lower part, the one end of cyclic annular filter core is sealed and the other end has the opening, the open end of cyclic annular filter core corresponds with the input of filter, be provided with a plurality of through-holes on the global of filter, cyclic annular filter core is arranged in filter housing's cavity and after fixed with filter housing, cyclic annular filter core is unsettled in filter housing.

During antistatic material liquid sent into the cyclic annular filter core of filter through the extraction of pneumatic diaphragm pump, after cyclic annular filter core filtration, antistatic material liquid flows into the cavity of filter housing through the through-hole on the cyclic annular filter core global, then enters into the spray tube through pipeline three from the output of filter in.

The utility model has the beneficial effects that:

(1) according to the antistatic material coating device for improving the antistatic effect, the problem of sedimentation of the antistatic material liquid is solved through the antistatic material circulating mechanism, and meanwhile, impurities are processed through the filter in the circulation process of the antistatic material liquid, so that the coating quality of a product to be coated is improved, and the antistatic effect is improved;

(2) according to the antistatic material coating device for improving the antistatic effect, the problem of uneven coating of antistatic material liquid is solved through the matching of the upper roller assembly, the lower roller assembly, the coating box, the spray pipe and the spray nozzle of the coating mechanism, and the feeding, discharging and collection circulation of the antistatic material liquid of a product to be coated are realized;

(3) according to the antistatic material coating device for improving the antistatic effect, the sealing connection between the spray pipe and the nozzle is ensured through the limiting component, the leakage of antistatic material liquid is avoided, the service life of the nozzle is prolonged, and the nozzle is convenient to mount, dismount and maintain; through preventing the subassembly that splashes, can constitute the gas protection barrier, can fully suppress the scattering of antistatic material liquid, be favorable to antistatic material liquid coating even.

Drawings

FIG. 1 is a schematic structural view of an antistatic material coating apparatus for improving antistatic effect according to the present invention;

FIG. 2 is a side view of a coating mechanism of the antistatic material coating apparatus for improving antistatic effect according to the present invention;

FIG. 3 is a schematic view of a nozzle structure of the antistatic material coating apparatus for improving antistatic effect according to the present invention;

FIG. 4 is a schematic view showing the structure of a filter of the antistatic material coating apparatus for improving antistatic effect according to the present invention;

in the figure: the antistatic material circulation mechanism 1, the antistatic material storage tank 11, the detachable filter plate 111, the pneumatic diaphragm pump 12, the first pipeline 121, the second pipeline 122, the filter 13, the filter housing 131, the annular filter element 132, the coating mechanism 2, the channel 201, the upper roller assembly 21, the upper roller 211, the lower roller assembly 22, the lower roller 221, the coating box 23, the water absorbing roller shaft 231, the spray pipe 24, the third pipeline 241, the projection 242, the spray nozzle 25, the spray nozzle body 251, the limiting assembly 252, the horizontal end 2521, the vertical end 2522, the opening 2523, the extending end 2524, the splash-proof assembly 253, the protective cover 2531, the connecting end 2532, the protective end 2533 gap 2534, the air inlet 2535, the accommodating cavity 2536, the coating rack 3, the mounting plate 31, the feed inlet 32 and the discharge outlet 33.

Detailed Description

The utility model will be further elucidated with reference to the accompanying figures 1-4 and specific examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The antistatic material coating apparatus with the above structure for improving the antistatic effect as shown in fig. 1-4 comprises an antistatic material circulating mechanism 1, a coating mechanism 2, a coating frame 3; the antistatic material circulating mechanism 1 comprises an antistatic material liquid storage tank 11, a pneumatic diaphragm pump 12 and a filter 13, and the coating mechanism 2 comprises an upper roller assembly 21, a lower roller assembly 22, a coating box 23, a spray pipe 24 and a nozzle 25; the antistatic material liquid storage tank 11 is fixedly arranged at the inner bottom of the coating rack 3, the pneumatic diaphragm pump 12 and the filter 13 are fixedly arranged on the coating rack 3 through a mounting plate 31 welded at the lower part of the outer side of the coating rack 3, the input end of the pneumatic diaphragm pump 12 is connected with the antistatic material liquid storage tank 11 through a first pipeline 121, the output end of the pneumatic diaphragm pump 12 is connected with the input end of the filter 13 through a second pipeline 122, and the output end of the filter 13 is connected with one end of the spray pipe 24 through a third pipeline 241; an upper roller assembly 21 and a lower roller assembly 22 which are opposite up and down are horizontally arranged at the upper part in the coating machine frame 3, the upper roller assembly 21 is composed of a plurality of upper roller shafts 211, the lower roller assembly 22 is composed of a plurality of lower roller shafts 221, the upper roller assembly 21 and the lower roller assembly 22 form a channel 201 therebetween, the coating box 23 is arranged at the lower side of the channel 201 and accommodates at least 1 lower roller 221 therein, the coating frame 3 is provided with a feed inlet 32 and a discharge outlet 33 opposite to the channel 201, a spray pipe 24 is arranged above the coating box 23 and the upper roller shaft 211, one end of the spray pipe 24 facing the coating box 23 is provided with a spray nozzle 25, the nozzle 25 comprises a nozzle body 251, a limiting component 252 and a splash-proof component 253, the nozzle body 251 is installed at one end of the nozzle 24 facing the coating cartridge 23 and communicates with the nozzle 24; the nozzle body 251 is externally sleeved with a limiting component 252 for limiting the nozzle body 251 and the spray pipe 24, and the limiting component 252 is sleeved with a splash-proof component 253 for preventing the antistatic material from splashing.

In addition, the coating box 23 is of a top-opening structure, the opening level of the coating box 23 is lower than that of the channel 201, and the upper roller shaft 211 and the lower roller shaft 221 which are positioned on the discharging side of the coating box 23 are provided as water absorbing roller shafts 231.

In addition, the limiting assembly 252 at least includes an integrally formed horizontal end 2521 and a vertical end 2522, an opening 2523 is disposed on the vertical end 2522, an outer profile of the opening 2523 matches an outer profile of the protrusion 242 disposed on the nozzle 24, and the protrusion 242 at least partially extends into the opening 2523; the upper surface of the horizontal end 2521 is closely attached to the lower surface of the large diameter end of the nozzle body 251, the inner wall of the horizontal end 2521 is closely attached to the outer circumferential surface of the small diameter end of the nozzle body 251, and the height of the large diameter end is equal to the distance between the opening 2523 and the horizontal end 2521.

In addition, the splash-proof assembly 253 includes a shield 2531 sleeved on the limiting assembly 252, the shield 2531 is composed of an integrated connecting end 2532 and a shield end 2533, the inner wall of the connecting end 2532 is tightly attached to the outer circumferential surface of the vertical end 2522, a circular gap 2534 is arranged between the shield end 2533 and the horizontal end 2521, an air inlet 2535 is arranged on the shield end 2533, and the air inlet 2535 is communicated with the gap 2534 through an accommodating cavity 2536 arranged between the connecting end 2532 and the horizontal end 2521.

Further, an extending end 2524 is further fixedly disposed on the vertical end 2522, and the extending end 2524 is located right below the connecting end 2532.

Further, a plurality of detachable filter plates 111 are horizontally arranged inside the antistatic material liquid storage tank 11.

Further, the filter 13 includes a filter housing 131 and an annular filter element 132, the filter housing 131 is a hollow structure, the input end of the filter 13 is disposed on the upper portion of the filter housing 131, the output end of the filter 13 is disposed on the lower portion of the filter housing 131, one end of the annular filter element 132 is closed, the other end of the annular filter element 132 has an opening, the open end of the annular filter element 132 corresponds to the input end of the filter 13, a plurality of through holes are disposed on the peripheral surface of the filter 13, the annular filter element 132 is disposed in the hollow cavity of the filter housing 131 and fixed to the filter housing 131, and the annular filter element 132 is suspended in the filter housing 131.

Examples

Based on the above structural basis, as shown in fig. 1-4.

The antistatic material coating device for improving the antistatic effect is reasonable in structural design, antistatic material liquid is placed in an antistatic material liquid storage box 11, the input end of a pneumatic diaphragm pump 12 is connected with the antistatic material liquid storage box 11, the antistatic material liquid is pumped into a filter 131 through the pneumatic diaphragm pump 12, the circulation flow of the antistatic material liquid can be conveniently adjusted by adjusting the air source pressure of a pneumatic diaphragm 2 pump, after the antistatic material liquid is filtered by a filter 13, the antistatic material liquid enters a spray pipe 24 from the output end of the filter 13 through a pipeline III 241, the antistatic material liquid is sprayed through a nozzle 25, a product to be coated enters a channel 201 from a feed inlet 32, an upper roller shaft 211 and a lower roller shaft 221 of an upper roller shaft assembly 21 and a lower roller shaft assembly 22 rotate to drive the product to be coated to advance, when the product to be coated advances above a coating box 23, the upper surface of the product to be coated is sprayed and coated through the nozzle 25, The upper roller shaft 211 is used for coating the antistatic material in a rolling coating mode, the flowing antistatic material liquid flows into the coating box 23, the lower roller shaft 221 in the coating box 23 rotates to enable the antistatic material in the coating box 23 to be coated on the lower surface of a product to be coated, the redundant antistatic material coated on the product to be coated flows back to the antistatic material liquid storage box 11 through the upper roller shaft 211 and the lower roller shaft 221 in a rolling manner, after the coating box 23 is filled with the antistatic material liquid, the overflowing antistatic material liquid overflows back to the antistatic material liquid storage box 11 through the lower roller shafts 221 on two sides of the coating box 23, and the antistatic material liquid in the antistatic material liquid storage box 11 is pumped through the pneumatic diaphragm pump 12 to be recycled.

Through the design of the antistatic material circulating mechanism 1, the problem of sedimentation of the antistatic material liquid is effectively solved, and impurities are subjected to the process through the filter 13 in the circulating process of the antistatic material liquid, so that the coating quality of products to be coated is improved, and the antistatic effect is improved.

Through coating mechanism 2's design, every is gone up roller 211, lower roller 221 all includes the pivot and follows a plurality of guide wheels and the drive shaft pivoted motor that the pivot axial set up, through going up roller 211, relative setting from top to bottom of guide wheel on the lower roller 221, go up roller assembly 21, lower roller assembly 22, coating box 23, spray tube 24, cooperation between the nozzle 25, the uneven problem of antistatic material liquid coating has not only been solved effectively, the material loading of treating the coating goods has still been realized, be favorable to the unloading, the collection circulation of antistatic material liquid.

Further, the coating box 23 is designed such that the excessive antistatic material coated on the product to be coated flows back to the antistatic material storage tank 11 through the upper roller shaft 211, the lower roller shaft 221, and the water absorbing roller shaft 2331, and after the coating box 23 is filled with the antistatic material, the overflowing antistatic material can flow back to the antistatic material storage tank 11 through the lower roller shafts 221 at both sides of the coating box 23.

Furthermore, through spacing subassembly 252, guaranteed the sealing connection of spray tube 24 with nozzle 25, avoided antistatic material liquid to leak, the life of extension nozzle 25, simultaneously, be convenient for installation, dismantlement and maintenance nozzle 25.

Furthermore, the shield 2531 is provided with an air inlet 2535, and the gas ejected through the gap is trumpet-shaped, so that a gas protection barrier can be formed, the flying of the antistatic material liquid can be fully suppressed, and the uniform coating of the antistatic material liquid is facilitated.

Further, through being provided with a plurality of removable filter 111 at the inside level of antistatic material liquid reserve tank 11, can carry out preliminary filtration to antistatic material liquid in antistatic material liquid reserve tank 11.

Further, the antistatic material liquid is pumped into the annular filter element 132 of the filter 13 through the air operated diaphragm pump 12, and after being filtered by the annular filter element 132, the antistatic material liquid flows into the hollow cavity of the filter housing 131 through the through holes on the peripheral surface of the annular filter element 132, and then enters the spray pipe 24 from the output end of the filter 13 through the third pipeline 241.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination between the embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the idea of the present invention.

Claims (7)

1. An antistatic material coating device for improving an antistatic effect is characterized by comprising an antistatic material circulating mechanism (1), a coating mechanism (2) and a coating rack (3); the antistatic material circulating mechanism (1) comprises an antistatic material liquid storage box (11), a pneumatic diaphragm pump (12) and a filter (13), and the coating mechanism (2) comprises an upper roller assembly (21), a lower roller assembly (22), a coating box (23), a spray pipe (24) and a nozzle (25); the antistatic material liquid storage tank (11) is fixedly arranged at the bottom in the coating rack (3), the pneumatic diaphragm pump (12) and the filter (13) are fixedly arranged on the coating rack (3) through a mounting plate (31) welded at the lower part of the outer side of the coating rack (3), the input end of the pneumatic diaphragm pump (12) is connected with the antistatic material liquid storage tank (11) through a first pipeline (121), the output end of the pneumatic diaphragm pump (12) is connected with the input end of the filter (13) through a second pipeline (122), and the output end of the filter (13) is connected with one end of the spray pipe (24) through a third pipeline (241); upper portion level is provided with relative upper roll axle subassembly (21), lower roll axle subassembly (22) about in coating frame (3), upper roll axle subassembly (21) comprises a plurality of upper roll axle subassembly (211), lower roll axle subassembly (22) comprises a plurality of lower roll axle subassembly (221), form passageway (201) between upper roll axle subassembly (21), the lower roll axle subassembly (22), coating box (23) set up the downside at passageway (201) and hold lower roll axle (221) of 1 at least in wherein, be provided with feed inlet (32) and discharge gate (33) relative with passageway (201) on coating frame (3), coating box (23) and the relative top of upper roll axle (211) are provided with spray tube (24), spray tube (25) are installed towards the one end of coating box (23), nozzle (25) include nozzle body (251), A limiting assembly (252), a splash preventing assembly (253), wherein the nozzle body (251) is installed at one end of the spray pipe (24) facing the coating box (23) and is communicated with the spray pipe (24); the nozzle body (251) is sleeved with a limiting component (252) used for limiting the nozzle body (251) and the spray pipe (24), and the limiting component (252) is sleeved with a splash-proof component (253) used for preventing the anti-static material from splashing.

2. The antistatic material coating apparatus for improving the antistatic effect as claimed in claim 1, wherein the coating box (23) is of a top-opening structure, the opening level of the coating box (23) is lower than the passage (201), and the upper roller shaft (211) and the lower roller shaft (221) located at the discharging side of the coating box (23) are provided as water absorbing roller shafts (231).

3. The coating apparatus of antistatic material with improved antistatic effect as claimed in claim 1, wherein the limiting component (252) comprises at least a horizontal end (2521) and a vertical end (2522) which are integrally formed, an opening (2523) is provided on the vertical end (2522), the outer profile of the opening (2523) matches with the outer profile of the projection (242) provided on the nozzle (24), and the projection (242) extends at least partially into the opening (2523); the upper surface of the horizontal end (2521) is closely attached to the lower surface of the large-diameter end of the nozzle body (251), the inner wall of the horizontal end (2521) is closely attached to the outer circumferential surface of the small-diameter end of the nozzle body (251), and the height of the large-diameter end is equal to the distance between the opening (2523) and the horizontal end (2521).

4. The coating apparatus of antistatic material with improved antistatic effect as claimed in claim 3, wherein the anti-spattering member (253) comprises a protective cover (2531) sleeved on the position limiting member (252), the protective cover (2531) comprises an integrated connecting end (2532) and a protective end (2533), the inner wall of the connecting end (2532) is tightly attached to the outer circumferential surface of the vertical end (2522), a circular gap (2534) is formed between the protective end (2533) and the horizontal end (2521), an air inlet (2535) is formed in the protective end (2533), and the air inlet (2535) is communicated with the gap (2534) through an accommodating cavity (2536) formed between the connecting end (2532) and the horizontal end (2521).

5. The antistatic material coating apparatus for improving the antistatic effect as claimed in claim 4, wherein an extended end (2524) is further fixed on the vertical end (2522), and the extended end (2524) is located right below the connection end (2532).

6. The coating apparatus of antistatic material for improving antistatic effect according to claim 1, wherein a plurality of filter plates (111) are detachably installed horizontally inside the antistatic material storage tank (11).

7. The antistatic material coating apparatus for improving antistatic effect according to claim 1, the filter (13) comprises a filter housing (131), an annular filter element (132), the filter shell (131) is of a hollow structure, the input end of the filter (13) is arranged at the upper part of the filter shell (131), the output end of the filter (13) is arranged at the lower part of the filter shell (131), one end of the annular filter element (132) is closed, the other end of the annular filter element (132) is provided with an opening, the opening end of the annular filter element (132) corresponds to the input end of the filter (13), the peripheral surface of the filter (13) is provided with a plurality of through holes, the annular filter element (132) is positioned in the hollow cavity of the filter shell (131) and is fixed with the filter shell (131), and the annular filter element (132) is suspended in the filter shell (131).

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