CN111804508A

CN111804508A - Automatic spraying structure

Info

Publication number: CN111804508A
Application number: CN202010815845.1A
Authority: CN
Inventors: 李耀权; 潘志贤
Original assignee: Guangdong Modern Coatings Technology Co Ltd
Current assignee: Guangdong Modern Coatings Technology Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2020-10-23

Abstract

The invention discloses an automatic curtain coating structure which comprises a bottom plate, a curtain coating chamber and a chain penetrating through the curtain coating chamber from left to right, wherein the bottom of the curtain coating chamber is fixedly connected with the top of the bottom plate through supporting legs, driving mechanisms are arranged on the top of the bottom plate and positioned on two sides of the curtain coating chamber, each driving mechanism comprises a supporting plate, and the front side and the back side of the top of each supporting plate are fixedly connected with hydraulic cylinders. This automatic drench and scribble structure, cavity class work piece when drenching and scribbling, go up to keep off and flow mechanism and keep off the end that the mechanism blocked the work piece down, can prevent effectively that the paint vehicle spraying from on the work piece inner wall to improved and drenched the quality of scribbling, can change in keeping off the mechanism down, use the spacing frame of different shapes or fretwork decorative pattern, can drench and scribble the different positions on work piece surface or drench and scribble out different patterns, accord with the user demand of reality, should drench and scribble the mechanism and can be applicable to the cavity work piece of different shapes and drench and scribble, application scope is.

Description

Automatic spraying structure

Technical Field

The invention relates to the technical field of curtain coating equipment, in particular to an automatic curtain coating structure.

Background

One of the coating construction methods is that the coating is stored in a high-level tank, the coating is sprayed down from the top through a nozzle or a narrow slit and is sprayed on a coated object driven by a conveying device in a curtain shape to form a uniform coating film, the redundant coating flows back to a container and is pumped to the high-level tank for recycling, a small batch of objects are manually coated on the coated object (commonly called a coating method), after the automatic flow line production is developed, curtain coating is called, the coating method is suitable for coating flat and strip-shaped materials such as steel plates, plywood and plastic plates which are produced in large scale, the thickness of the coating film on the product is controlled through the size of the nozzle or the width of the narrow slit, if the coating film is thick, bubbles can appear on the coating film of the product which is discharged from a drying box through a conveyor belt, if the coating film is too thin, the product can appear bottom exposure and the coating is not uniform, and some products need to be vulcanized, the vulcanization is to increase the adhesive force of, one or more showers and vulcanizes are also required to increase the thickness of the product.

The patent with publication number CN111036446A proposes an automatic curtain coating device, in the curtain coating of the door panel, the paint staying on the conveyor belt can be smeared at the bottom of the door panel, and the conveyor belt can also smear the excessive paint which is difficult to fall from the bottom of the door panel; compared with the prior art, the bottom of the door panel does not need to be independently repaired by manpower, so that the production procedures are reduced, and the labor cost is reduced.

Patent publication No. CN110560299A provides an automatic formula flush coater that drenches, and this scheme can carry out the spraying to the inner chamber and the surface of tubular article, can reduce certain labour, and does not receive the exogenic action at the spraying process article, has reduced the possibility that the article takes place to warp, combines prior art, and current drenches and scribbles the structure and still exists following defect:

1) when the hollow workpiece is subjected to spray coating, the condition that the inner wall of the workpiece is not polluted by the spray coating paint can not be ensured, so that the spray coating quality is poor, the whole workpiece is generally subjected to spray coating in the spray coating process, different positions can not be sprayed according to the requirements of different products, so that the application range of the spray coating structure is small, only workpieces with uniform whole colors can be subjected to spray coating, and the practicability of the spray coating device is reduced;

2) when the tubular workpiece is coated in a spraying mode, the workpiece needs to be clamped by the clamping mechanism, paint at the position covered by the clamping piece cannot be coated in a spraying mode, the workpiece is integrally coated unevenly, and therefore the quality of products is reduced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an automatic spray coating structure, which solves the problems that only workpieces with uniform overall color can be sprayed, the application range is small, and paint at the position covered by a clamping piece cannot be sprayed, so that the overall spraying of the workpieces is uneven.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: an automatic curtain coating structure comprises a bottom plate, a curtain coating chamber and a chain penetrating through the curtain coating chamber from left to right, wherein the bottom of the curtain coating chamber is fixedly connected with the top of the bottom plate through supporting legs, driving mechanisms are arranged on the top of the bottom plate and positioned on two sides of the curtain coating chamber, each driving mechanism comprises a supporting plate, hydraulic cylinders are fixedly connected to the front and the back of the top of the supporting plate, an installation plate is fixedly connected to the output end of each hydraulic cylinder, a limiting mechanism is fixedly connected to the top of the installation plate through bolts, the back of the chain is rotatably connected with an installation block through a connection block, and the bottom of the installation block is fixedly connected with an upper flow blocking mechanism through bolts;

the limiting mechanism comprises a placing frame, a fixing groove is formed in the placing frame, and an electromagnet is fixedly connected between the top and the bottom of the inner wall of the fixing groove;

a lower flow blocking mechanism is arranged inside the placing frame and comprises an iron block, and the bottom of the surface of the iron block is fixedly connected with a limiting frame;

the upper flow blocking mechanism comprises a flow blocking plate fixed at the bottom of the mounting block through a bolt, the bottom of the flow blocking plate is fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected with a permanent magnet.

Preferably, actuating mechanism still includes the rectangle frame and fixes the fixed frame at the bottom plate top, the top sliding connection of slide rail and bottom plate is all passed through to the bottom of backup pad and rectangle frame to one side fixed connection that backup pad and rectangle frame are relative, the bottom fixedly connected with motor of fixed frame inner wall, the output fixedly connected with dwang of motor.

Preferably, the one end that the motor was kept away from to the dwang runs through fixed frame and rectangle frame and extends to the inside of rectangle frame, the surface of dwang and the inside fixedly connected with disc that is located the rectangle frame, the disc surface gets the first tooth of top fixedly connected with, the equal fixedly connected with in bottom of rectangle frame inner wall and the second tooth pressure of first tooth looks meshing.

Preferably, a conveyer belt is rotatably connected between the front surface and the back surface of the inner wall of the curtain coating chamber and under the upper flow blocking mechanism, and a scraping mechanism is arranged between the front surface and the back surface of the inner wall of the curtain coating chamber and under the conveyer belt.

Preferably, scrape the material mechanism and include the scraper blade and fix the dead lever between the front and the back of drenching and coating indoor wall, the surface cover of dead lever is equipped with the torsional spring to the torsional spring carries on spacingly through the fixed block on fixed rod surface, the scraper blade is connected through the front and the back rotation of gag lever post and drenching and coating indoor wall, the left side of scraper blade contacts with the surface of conveyer belt, and the bottom surface and the torsional spring of scraper blade laminate mutually.

Preferably, the material frame is placed to the bottom of curtain coating indoor wall and be located scraper mechanism under, the bottom on the positive right side of curtain coating room articulates through the hinge has the chamber door.

Preferably, the two sides of the top of the bottom plate are fixedly connected with water pumps, water outlets of the water pumps are communicated with spray pipes, one ends, far away from the water pumps, of the spray pipes penetrate through the spray coating chamber and extend to the interior of the spray coating chamber, and one ends, located inside the spray coating chamber, of the spray pipes are fixedly connected with spray heads.

Preferably, the back of the inner wall of the curtain coating chamber is fixedly connected with a purging spray head, and the air inlet end of the purging spray head is communicated with an external purging device through a connecting pipe.

(III) advantageous effects

The invention provides an automatic curtain coating structure. Compared with the prior art, the method has the following beneficial effects:

(1) the automatic spray coating structure comprises a bottom plate, wherein driving mechanisms are arranged on the top of the bottom plate and positioned on two sides of a spray coating chamber, each driving mechanism comprises a supporting plate, the front and back of the top of each supporting plate are fixedly connected with a hydraulic cylinder, the output end of each hydraulic cylinder is fixedly connected with an installation plate, the top of each installation plate is fixedly connected with a limiting mechanism through a bolt, the back of a chain is rotatably connected with an installation block through a connection block, and the bottom of each installation block is fixedly connected with an upper flow blocking mechanism through a bolt; when the hollow workpiece is coated by spraying, the upper flow blocking mechanism and the lower flow blocking mechanism block the end of the workpiece, paint can be effectively prevented from being sprayed on the inner wall of the workpiece, the coating quality is improved, the lower flow blocking mechanism can be replaced, the limiting frames with different shapes or hollow patterns are used, different positions on the surface of the workpiece can be coated by spraying or different patterns can be coated by spraying, the practical use requirements are met, and the coating machine is more favorable for popularization and use.

(2) This automatic drench scribbles structure, through the top of mounting panel through bolt fixedly connected with stop gear, the bottom of installation piece is through bolt fixedly connected with upper baffling mechanism, and lower baffling mechanism has been placed to the inside of rack, and upper baffling mechanism, stop gear and lower baffling mechanism all can be changed according to the shape of work piece, make this drench scribble the cavity work piece that the mechanism can be applicable to different shapes and drench scribble, and application scope is wider.

(3) This automatic drench scribbles structure, it flows the mechanism to place down to keep off through the inside of rack, it includes the iron plate to keep off down to flow the mechanism, the spacing frame of bottom fixedly connected with on iron plate surface, it includes that the fender through the bolt fastening in installation piece bottom flows the board to go up to keep off to flow the mechanism, the bottom fixedly connected with connecting rod that the board was flowed, and the bottom fixedly connected with permanent magnet of connecting rod, it replaces fixture with spacing frame to keep off to flow the board and fix the work piece, avoid clamping structure to cover on the surface of work piece, the surface that makes the work piece can drench more evenly of scribbling, thereby the quality of product has.

(4) This automatic drench scribbles structure, include the scraper blade and fix the dead lever between the front and the back of drenching the indoor wall of scribbling through scraping the material mechanism, the surface cover of dead lever is equipped with the torsional spring, and the torsional spring carries on spacingly through the fixed block on fixed rod surface, the scraper blade is connected through the front and the back rotation of gag lever post and drenching the indoor wall of scribbling, the left side of scraper blade contacts with the surface of conveyer belt, and the bottom surface of scraper blade is laminated mutually with the torsional spring and is scraped the material mechanism and can scrape out and fall into the material frame of bottom along the scraper blade with the adsorbed paint vehicle that drenches of conveyer belt, be.

(5) The automatic spraying structure further comprises a rectangular frame and a fixing frame fixed at the top of the bottom plate through a driving mechanism, the bottom of the inner wall of the fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating rod, the surface of the rotating rod is fixedly connected with a disc positioned inside the rectangular frame, the top of the surface of the disc is fixedly connected with first teeth, the bottom and the bottom of the inner wall of the rectangular frame are fixedly connected with second teeth presses meshed with the first teeth, the driving mechanism drives a limiting mechanism to move back and forth, therefore, the two stations at the top of the limiting mechanism move back and forth, when one station discharges materials, the other station is located below the upper flow blocking mechanism, the lower flow blocking mechanism in the station is matched with the permanent magnet to adsorb the workpiece, the two stations are matched with each other to work, the workpiece is placed and transferred at the same time, and the working efficiency is effectively improved.

(6) This automatic drench scribbles structure, through drench the back of scribbling the indoor wall and lie in fixedly connected with between the shower nozzle of two and sweep the shower nozzle, the inlet end that sweeps the shower nozzle passes through the connecting pipe and sweeps the device intercommunication with the outside, drench scribble the work and accomplish the back, the work piece transmission is to sweeping the shower nozzle the place ahead, sweep the shower nozzle can be with being in this position down keep off flow mechanism on because gravity collects accumulational paint vehicle and blow down, reduce the adhesion of paint vehicle, make down keep off flow mechanism convenient clearance on the one hand, can save the paint vehicle on the one hand.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the drive mechanism of the present invention;

FIG. 4 is a perspective view of the support plate, hydraulic cylinder and stop mechanism of the present invention;

FIG. 5 is a front view of the upper flow blocking mechanism of the present invention;

FIG. 6 is a cross-sectional view of the spacing mechanism of the present invention;

FIG. 7 is an enlarged view of a portion of the invention at A in FIG. 2;

FIG. 8 is a side view of a rectangular frame and disk configuration of the present invention;

fig. 9 is a partial cross-sectional view of the lower baffle mechanism of the present invention.

In the figure, 1 a bottom plate, 2 a spray coating chamber, 3 chains, 4 supporting legs, 5 driving mechanisms, 51 supporting plates, 52 rectangular frames, 53 fixing frames, 54 motors, 55 rotating rods, 56 discs, 57 first teeth, 58 second teeth, 6 hydraulic cylinders, 7 mounting plates, 8 limiting mechanisms, 81 placing frames, 82 fixing grooves, 83 electromagnets, 9 mounting blocks, 10 upper flow blocking mechanisms, 101 flow blocking plates, 102 connecting rods, 103 permanent magnets, 11 lower flow blocking mechanisms, 111 iron blocks, 112 limiting frames, 12 conveying belts, 13 scraping mechanisms, 131 scraping plates, 132 fixing rods, 133 torsion springs, 134 fixing blocks, 14 material frames, 15 box doors, 16 water pumps, 17 spray pipes, 18 spray heads and 19 purging spray heads.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, 4-6 and 9, an embodiment of the present invention provides a technical solution: an automatic curtain coating structure comprises a bottom plate 1, a curtain coating chamber 2 and a chain 3 penetrating through the curtain coating chamber 2 from left to right, wherein an external transmission motor drives a gear to rotate, the gear drives the chain 3 to transmit, the bottom of the curtain coating chamber 2 is fixedly connected with the top of the bottom plate 1 through a support leg 4, driving mechanisms 5 are arranged at the top of the bottom plate 1 and positioned at two sides of the curtain coating chamber 2, each driving mechanism 5 comprises a support plate 51, a hydraulic cylinder 6 is fixedly connected to the front and the back of the top of the support plate 51, an output end of the hydraulic cylinder 6 is fixedly connected with a mounting plate 7, the top of the mounting plate 7 is fixedly connected with a limiting mechanism 8 through a bolt, the back of the chain 3 is rotatably connected with a mounting block 9 through a connecting block, the bottom of the mounting block 9 is fixedly connected with an upper flow blocking mechanism 10 through a bolt, during the conveying of a workpiece in the curtain coating chamber, the coating is not transferred out from the coating chamber 2 after dripping on the surface of the workpiece, so that the coating paint does not pollute the external environment;

the limiting mechanism 8 comprises a placing frame 81, referring to fig. 4, two stations are arranged at the top of the placing frame 81, when one station is used for placing materials, the other station is positioned below the upper flow blocking mechanism, at the moment, the lower flow blocking mechanism 11 in the station is matched with the permanent magnet 103 to adsorb the workpieces, the two stations are matched with each other to work, so that the workpieces can be placed and transferred at the same time, the working efficiency of the device can be improved, a fixing groove 82 is formed in the placing frame 81, an electromagnet 83 is fixedly connected between the top and the bottom of the inner wall of the fixing groove 82, and the magnetic force generated by the electromagnet 83 is larger than that of the permanent magnet 103;

a lower flow blocking mechanism 11 is arranged in the placing frame 81, the lower flow blocking mechanism 11 comprises an iron block 111, the surface of the iron block 111 is coated with a layer of antirust coating, and the bottom of the surface of the iron block 111 is fixedly connected with a limiting frame 112;

the upper flow blocking mechanism 10 comprises a flow blocking plate 101 fixed at the bottom of the mounting block 9 through bolts, a connecting rod 102 is fixedly connected to the bottom of the flow blocking plate 101, and a permanent magnet 103 is fixedly connected to the bottom end of the connecting rod 102.

Referring to fig. 3 and 8, in the present invention, the driving mechanism 5 further includes a rectangular frame 52 and a fixing frame 53 fixed on the top of the bottom plate 1, the bottoms of the supporting plate 51 and the rectangular frame 52 are both slidably connected to the top of the bottom plate 1 through a sliding rail, the supporting plate 51 is fixedly connected to one side of the rectangular frame 52 opposite to the supporting plate 51, the bottom of the inner wall of the fixing frame 53 is fixedly connected to a motor 54, the motor 54 is connected to a control system and an external power supply through a wire, the motor 54 is a servo motor, the model is JSF60-15-30-CF-1000, and the output end of the motor 54 is fixedly connected to.

Referring to fig. 3 and 8, in the present invention, one end of the rotating rod 55, which is far away from the motor 54, penetrates through the fixed frame 53 and the rectangular frame 52 and extends to the inside of the rectangular frame 52, the surface of the rotating rod 55 and the inside of the rectangular frame 52 are fixedly connected with the disc 56, the top of the surface of the disc 56 is fixedly connected with the first teeth 57, the bottom and the bottom of the inner wall of the rectangular frame 52 are both fixedly connected with the second tooth pressure 58 engaged with the first teeth 57, and the disc 56 rotates to drive the rectangular frame 52 to move back and forth through the mutual cooperation of the first teeth 57 and the second teeth 58.

Referring to fig. 2, in the present invention, a conveyor belt 12 is rotatably connected between the front and the back of the inner wall of the spray coating chamber 2 and under the upper flow blocking mechanism 10, the outer surface of the conveyor belt 12 is made of wool, and can absorb the dripping and blowing off spray coating paint so that the spray coating paint is not easy to drip into the spray coating chamber 2, a scraping mechanism 13 is arranged between the front and the back of the inner wall of the spray coating chamber 2 and at the right lower side of the conveyor belt 12, and the scraping mechanism 13 can scrape the spray coating paint absorbed by the conveyor belt 12 out and fall into a bottom material frame 14 along a scraper 131, so as to facilitate recovery processing of the spray coating dripping paint.

Referring to fig. 7, in the present invention, the scraping mechanism 13 includes a scraping plate 131 and a fixing rod 132 fixed between the front and the back of the inner wall of the curtain coating chamber 2, a torsion spring 133 is sleeved on the surface of the fixing rod 132, the torsion spring 133 is limited by a fixing block 134 on the surface of the fixing rod 132, the scraping plate 131 is rotatably connected with the front and the back of the inner wall of the curtain coating chamber 2 by a limiting rod, the left side of the scraping plate 131 contacts with the surface of the conveyor belt 12, and the bottom surface of the scraping plate 131 is attached to the torsion spring 133.

Referring to fig. 1 and 2, in the invention, a material frame 14 is placed at the bottom of the inner wall of the spray coating chamber 2 and under the scraping mechanism 13, and the bottom of the right side of the front surface of the spray coating chamber 2 is hinged with a box door 15 through a hinge.

Referring to fig. 1 and 2, in the invention, both sides of the top of the bottom plate 1 are fixedly connected with water pumps 16, the water pumps 16 are 150QJ20-48/8, the water outlets of the water pumps 16 are communicated with spray pipes 17, one ends of the spray pipes 17 far away from the water pumps 16 penetrate through the shower coating chamber 2 and extend to the interior of the shower coating chamber 2, and one ends of the spray pipes 17 located in the shower coating chamber 2 are fixedly connected with spray heads 18.

Referring to fig. 2, in the present invention, a purge nozzle 19 is fixedly connected to the back surface of the inner wall of the curtain coating chamber 2, and the air inlet end of the purge nozzle 19 is communicated with an external purge device through a connection pipe.

When the device works, after a workpiece to be coated and the lower flow blocking mechanism 11 are assembled by external assembling equipment, the workpiece is placed in a placing groove at the top of the placing frame 81 by using a mechanical arm, then the hydraulic cylinder 6 is controlled by a system to extend, the limiting mechanism 8 and the lower flow blocking mechanism 11 are pushed to move upwards, so that the workpiece moves upwards, the permanent magnet 103 in the upper flow blocking mechanism 10 is inserted into the workpiece, when the distance between the permanent magnet 103 and the iron block 111 is close enough, the permanent magnet 103 adsorbs the iron block 111, so that the workpiece is fixed on the upper flow blocking mechanism 10, then the hydraulic cylinder 6 contracts, so that the limiting mechanism 8 is separated from the lower flow blocking mechanism 11 to complete workpiece transfer, in the process of workpiece transfer, the workpiece is placed on another station at the top of the limiting mechanism 8, after the workpiece on one station is rotated, the driving mechanism 5 works, so that the motor 54 works, and the rotating rod 55 drives the disc 56 and the first teeth 57 on the surface thereof to rotate, the first tooth 57 and the second tooth 58 are matched with each other to drive the rectangular frame 52 to move back and forth, so that the supporting plate 51 is driven to move back and forth, a work station for placing a workpiece is moved to the position below the upper baffle mechanism 10, the work station for transferring the workpiece is moved to the position where the workpiece is originally placed to wait for next discharging, the workpiece transferred to the upper baffle mechanism 10 is conveyed along with the chain 3 and moves towards the interior of the spray coating chamber 2, and the system controls the water pump 16 to work. The external spray paint is extracted and sprayed on the surface of a workpiece through a spray pipe 17 and a spray head 18, the workpiece moves rightwards continuously along with a chain 3, when the workpiece moves to a blow spray head 19, gas sprayed by the blow spray head 19 blows off paint which is gathered at the bottom of a lower flow blocking mechanism 11 and does not drip, the paint which drips in the moving process of the workpiece falls on a conveying belt 12, the conveying belt 12 drives clockwise, a scraper 131 scrapes off the paint adsorbed on the surface of the conveying belt 12 and enables the paint to drip along the scraper 131 into a material frame 14 below, recycling is facilitated, the workpiece moves continuously and finally comes out from the right side of a spray chamber 2, when the workpiece moves to the upper side of a limiting mechanism 8 on the right side, a system controls a hydraulic cylinder 6 on the right side to extend, a placing frame 81 on the right side is clamped on the surface of the bottom of the lower flow blocking mechanism 11, at the moment, a system controls an electromagnet 83, because the magnetic force that electro-magnet 83 produced is greater than the magnetic force of permanent magnet 103, lower baffling mechanism 11 can follow stop gear 8 downstream, and the work piece falls under the effect of self gravity simultaneously, makes the work piece break away from upper baffling mechanism 10, then actuating mechanism 5 work on right side drives the rack 81 station motion of placing the work piece, makes another work piece-free station motion under the chain, waits for the blanking of next time, and outside arm takes away the work piece simultaneously.

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 an automatic drench scribble structure, includes bottom plate (1), drenches room (2) and runs through chain (3) of drenched room (2) from a left side to the right side, the top fixed connection of supporting leg (4) and bottom plate (1), its characterized in that are passed through to the bottom of drenched room (2): the top of the bottom plate (1) and two sides of the spray coating chamber (2) are respectively provided with a driving mechanism (5), each driving mechanism (5) comprises a supporting plate (51), the front and the back of the top of each supporting plate (51) are respectively and fixedly connected with a hydraulic cylinder (6), the output end of each hydraulic cylinder (6) is fixedly connected with a mounting plate (7), the top of each mounting plate (7) is fixedly connected with a limiting mechanism (8) through a bolt, the back of the chain (3) is rotatably connected with a mounting block (9) through a connecting block, and the bottom of each mounting block (9) is fixedly connected with an upper flow blocking mechanism (10) through a bolt;

the limiting mechanism (8) comprises a placing frame (81), a fixing groove (82) is formed in the placing frame (81), and an electromagnet (83) is fixedly connected between the top and the bottom of the inner wall of the fixing groove (82);

a lower flow blocking mechanism (11) is arranged in the placing frame (81), the lower flow blocking mechanism (11) comprises an iron block (111), and the bottom of the surface of the iron block (111) is fixedly connected with a limiting frame (112);

the upper flow blocking mechanism (10) comprises a flow blocking plate (101) fixed to the bottom of the mounting block (9) through bolts, a connecting rod (102) is fixedly connected to the bottom of the flow blocking plate (101), and a permanent magnet (103) is fixedly connected to the bottom end of the connecting rod (102).

2. The automatic curtain coating structure of claim 1, wherein: actuating mechanism (5) still include rectangle frame (52) and fix fixed frame (53) at bottom plate (1) top, the top sliding connection of slide rail and bottom plate (1) is all passed through to the bottom of backup pad (51) and rectangle frame (52) to one side fixed connection that backup pad (51) and rectangle frame (52) are relative, the bottom fixedly connected with motor (54) of fixed frame (53) inner wall, the output fixedly connected with dwang (55) of motor (54).

3. The automatic curtain coating structure of claim 2, wherein: the one end that motor (54) were kept away from in dwang (55) runs through fixed frame (53) and rectangle frame (52) and extends to the inside of rectangle frame (52), the inside fixedly connected with disc (56) of surface and the position of dwang (55) rectangle frame (52), disc (56) surface gets the first tooth of top fixedly connected with (57), the equal fixedly connected with in bottom and the bottom of rectangle frame (52) inner wall presses (58) with the second tooth that first tooth (57) engaged with.

4. The automatic curtain coating structure of claim 1, wherein: the spraying chamber is characterized in that a conveying belt (12) is rotatably connected between the front and the back of the inner wall of the spraying chamber (2) and under the upper flow blocking mechanism (10), and a scraping mechanism (13) is arranged between the front and the back of the inner wall of the spraying chamber (2) and under the conveying belt (12).

5. The automatic curtain coating structure of claim 4, wherein: scrape material mechanism (13) and include scraper blade (131) and fix dead lever (132) between the front and the back of curtaining room (2) inner wall, the surface cover of dead lever (132) is equipped with torsional spring (133) to torsional spring (133) carry on spacingly through fixed block (134) on dead lever (132) surface, scraper blade (131) are connected through the front and the back rotation of gag lever post and curtaining room (2) inner wall, the left side of scraper blade (131) contacts with the surface of conveyer belt (12) to the bottom surface and the torsional spring (133) of scraper blade (131) laminate mutually.

6. The automatic curtain coating structure of claim 1, wherein: the material frame (14) is placed at the bottom of the inner wall of the curtain coating chamber (2) and under the scraping mechanism (13), and the bottom of the right side of the front side of the curtain coating chamber (2) is hinged with a chamber door (15) through a hinge.

7. The automatic curtain coating structure of claim 1, wherein: the equal fixedly connected with water pump (16) in both sides at bottom plate (1) top to the delivery port intercommunication of water pump (16) has shower (17), shower (17) are kept away from the inside that shower room (2) and extended to shower room (2) through shower room (2) to the one end of water pump (16), shower (17) are located shower room (2) inside one end fixedly connected with shower head (18).

8. The automatic curtain coating structure of claim 1, wherein: the back of the inner wall of the curtain coating chamber (2) is fixedly connected with a purging spray head (19), and the air inlet end of the purging spray head (19) is communicated with an external purging device through a connecting pipe.