Closed lacquer powder recycle paint spraying system
Technical field
The present invention relates to a kind of paint spraying system, especially relate to a kind of closed lacquer powder recycle paint spraying system.
Background technology
Existing automobile brake sheet external coating mainly adopts the electrostatic powder coating mode, is about to powdery paints and directly is sprayed at the brake block surface, through overbaking, can obtain the film coated surface of excellent performance.Yet there are a lot of shortcomings in electrostatic spraying apparatus at present: the one, and the conveyer belt of spray-painting plant runs through whole equipment room; Wherein there is very big one section to be exposed to outside the machine room; The lacquer powder of spray gun ejection can be along with the motion of conveyer belt; Take out of outside the machine room, cause the lacquer powder to fly upward everywhere, bigger to human body and surrounding environment harm.The 2nd, existing spray-painting plant can't carry out in time the lacquer powder, comprehensively recycling, causes the waste of lacquer powder serious, makes whole spraying process can not realize continuous production, and the workman is big to the cleaning labour intensity of lacquer powder in the recovery system.
Summary of the invention
The present invention solves that existing lacquer powder flies upward in the existing automobile brake sheet external coating everywhere, and bigger to human body and surrounding environment harm, the waste of lacquer powder is serious, and the workman clears up technical problems such as the labour intensity of lacquer powder is big.
The present invention has also solved technical problems such as existing coating equipment efficient is low, and automaticity is low simultaneously.
The present invention mainly solves above-mentioned technical problem through following technical proposals: a kind of closed lacquer powder recycle paint spraying system; Comprise machine room, storage tank, conveyer belt, be provided with electrostatic spraying gun in the said machine room, electrostatic spraying gun is installed on the reciprocating mobile device; This electrostatic spraying gun is connected with the lacquer powder pump at storage tank top through conveying pipeline; Said machine room top is provided with gas material separator box, and gas material separator box top is provided with wind mixed chamber, and the wind mixed chamber top is provided with air exhauster; Gas material separator box bottom is provided with material-falling hopper; The outlet of material-falling hopper bottom is connected with lacquer powder pump, and lacquer powder pump is connected with the sieves that is arranged on the storage tank top through discharge nozzle, and filter screen bottom is connected with storage tank;
Said machine room bottom is provided with reclaims bucket; The outlet of reclaiming the bucket bottom is connected with suction tube; Suction tube is connected with the charging aperture of gas material separator box, the outlet of reclaiming the bucket bottom also through a barometric pipe be arranged on storage tank flour dust on top filter outlet and be connected, dust filter unit is connected with storage tank;
Wall is provided with the workpiece inlet before the said machine room, and wall is provided with the workpiece outlet behind the machine room, and workpiece inlet and workpiece exit are equipped with gas-tight curtain; Be provided with conveyer belt in the room in the machine room; Be provided with preposition conveyer belt before the machine room, be provided with rearmounted conveyer belt behind the machine room, said preposition conveyer belt is terminal extend put in the workpiece inlet with the room in the conveyer belt front end along connecing; The conveyer belt end is put rearmounted conveyer belt to the workpiece outlet along connecing with extension in the room in machine room, and this postposition conveyer belt is terminal to be connect with the drying line conveyer belt is suitable.
As preferably, vertically be provided with a plurality of filter core posts in the said gas material separator box, the two ends of filter core post have end cap; Upper end cover is provided with steam vent, steam vent and UNICOM of wind mixed chamber, is provided with distributing pipe in the wind mixed chamber, and distributing pipe is connected with high-pressure pump; Distributing pipe is provided with a plurality of arms corresponding with the filter core post; The end of arm is provided with air valve, and the valve of air valve is connected with the tracheae of regurgitating on being arranged on filter core post axis, and the end of regurgitating tracheae is provided with H shape jet pipe.
As preferably, offer a plurality of apertures on the both sides straight tube tube wall of said H shape jet pipe, the centre of the tube connector between the straight tube of both sides and a sleeve pipe UNICOM, down has closed airtight bearing in the sleeve pipe, and the shaft hole sleeve of airtight bearing is being regurgitated on the tracheae.The pulse backblowing air communication is crossed and is regurgitated valve and blow out from the hole on the H pipe, and reaction force makes the H pipe fast rotational form air knife, scrapes the accumulated powder of sweeping cartridge surface, reaches the purpose of comparatively thoroughly removing the cartridge surface accumulated powder.
As preferably, the aperture of said left side straight tube angular range with 90~180 ° on tube wall axially evenly distributes, and the aperture of right side straight tube angular range with 0~-90 ° on tube wall axially evenly distributes.
As preferably, said filter core post profile is the garden tubular, and the paper facer of filter core post has the perpendicular line of folding pleat of rule, folding pleat end arc transition.The paper facer of filter core is handled through polyurethane, and is not only nonhygroscopic but also have the mechanical strength of the high total blowback air-flow of anti-arteries and veins.
As preferably, said gas-tight curtain is superimposed with each other to arrange by a plurality of sagging naturally plastic tapes and forms.
As preferably, said mobile device comprises frame, and frame is provided with a pair of reciprocating motion sprocket wheel, is arranged with chain on the sprocket wheel, and the frame bottom is provided with guide rod, is hung with hanger on the guide rod, and the top of hanger is connected with chain, and electrostatic spraying gun is fixed in the bottom of hanger.
As preferably; Said rearmounted conveyer belt comprises support; Support is provided with forward and backward backing roll, and the conveyor surface below that forward and backward backing roll constitutes is provided with jockey pulley and intermediate calender rolls, below the centre position of intermediate calender rolls, jockey pulley, is provided with drive roll; Conveyer belt is nested with on forward and backward backing roll, conveyer belt drive roll, and its outer surface is walked around jockey pulley and intermediate calender rolls; Jockey pulley is arranged on the tension bracket, and tension bracket is screwed on the support through adjusting screw(rod).
Conveyer belt of the present invention constitutes by three sections, and workpiece inlet and workpiece exit are equipped with gas-tight curtain, and conveyer belt is arranged in the paint spray booth fully in the room, so air-tightness is good, and the lacquer powder can be along with the motion of conveyer belt is taken out of outside the machine room.Gas material separator box separates thoroughly the powder that reclaims, and the H shape jet pipe of establishing in its filter core can fast rotational form air knife, scrapes the accumulated powder of sweeping cartridge surface, makes the lacquer powder all reclaim.Advantages such as the present invention has the coating process advanced person, and coating quality is good.The defective that it has overcome the conventional electrostatic spraying coating process has improved the serviceability of electrostatic spraying greatly.Reduced in the coating process the pollution of environment, alleviated labor strength greatly simultaneously, saved human resources.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment, do further bright specifically to technical scheme of the present invention.
Fig. 1 is the structural representation of a kind of preferred implementation of the present invention;
Fig. 2 is a kind of structural representation of conveyer belt shown in Figure 1;
Fig. 3 is a kind of structural representation of mobile device shown in Figure 1;
Fig. 4 is the front view of machine room shown in Figure 1;
Fig. 5 is the structural representation of filter core post shown in Figure 4;
Fig. 6 is the structural representation of H shape jet pipe shown in Figure 5;
Fig. 7 is the A of Fig. 6---the A cutaway view.
The specific embodiment
Fig. 1 is the structural representation of a kind of preferred implementation of the present invention.This closed lacquer powder recycle paint spraying system mainly comprises high-pressure pump 110, machine room 5, storage tank 1, conveyer belt 53, electrostatic spraying gun 51 etc.Machine room 5 tops are provided with gas material separator box 7; Gas material separator box 7 tops are provided with wind mixed chamber 71; Wind mixed chamber 71 tops are provided with air exhauster 72, and gas material separator box 7 bottoms are provided with material-falling hopper 73, and the outlet of material-falling hopper 73 bottoms is connected with lacquer powder pump 731; Lacquer powder pump 731 is connected with the sieves 2 at storage tank 1 top through discharge nozzle 23, and sieves 2 bottoms are connected with storage tank 1 charging aperture.
Machine room 5 bottoms are provided with reclaims bucket 52, and the outlet of reclaiming bucket 52 bottoms is connected with suction tube 55, and suction tube 55 is connected with gas material separator box 7 charging apertures 6; In order to guarantee the balance of system's air pressure, the outlet of reclaiming the bucket bottom also is connected with the outlet of dust filter unit through a barometric pipe.Dust filter unit 111 is communicated with storage tank, is located at storage tank 1 top.The filter core of dust filter unit 111 adopts the spunbond polyester non-woven fabric of composite long fiber to make, but the airborne dust of elimination storage tank, and efficiency of dust filtration is high, it is simple to install, use, characteristics such as easy to maintenance.
Be provided with conveyer belt 61 in the room in the machine room 5; Be provided with preposition conveyer belt 62 before the machine room 5; Be provided with rearmounted conveyer belt 63 behind the machine room 5; This preposition conveyer belt 62 is terminal to be extended and puts workpiece and enter the mouth in 53 places and the room conveyer belt 61 front ends along connecing, and conveyer belt 61 is put rearmounted conveyer belt 63 to the workpiece outlet 56 along connecing rearmounted conveyer belt 63 terminal conveyer belts 64 suitable connecing of coating with lacquer the powder drying line with entering with extension in machine room in the room in.
Further can know by Fig. 2; Rearmounted conveyer belt 63 comprises support 65; Support 65 is provided with forward and backward backing roll (656,657), and the conveyor surface below that forward and backward backing roll (656,657) constitutes is provided with jockey pulley 655 and intermediate calender rolls 651, below the centre position of intermediate calender rolls 651, jockey pulley 655, is provided with drive roll 652; Conveyer belt is nested with on forward and backward backing roll (656,657), the conveyer belt drive roll on 652, and its outer surface is walked around jockey pulley 655 and intermediate calender rolls 651; Jockey pulley 655 is arranged on the tension bracket 653, and tension bracket 653 is screwed on the support 65 through adjusting screw(rod) 654.
Wall is provided with workpiece inlet 53 before the machine room 5; Machine room 5 back walls are provided with workpiece outlet 56; Workpiece inlet 53 exports 56 places with workpiece and is equipped with gas-tight curtain 57, and gas-tight curtain 57 is " one " font by a plurality of sagging naturally plastic tapes and is superimposed with each other to arrange and forms (referring to Fig. 4).Electrostatic spraying gun 51 is installed on the reciprocating mobile device 59, and electrostatic spraying gun 51 is connected with the lacquer powder pump 22 at storage tank top 1 through conveying pipeline 12, and conveying pipeline 12 is a rubber tube, and is withstand voltage at 0.5MPa, and its feature is light, corrosion-resistant.
As shown in Figure 3; Mobile device 59 comprises that frame 592, frame 592 bottom hung have guide rod 594, is hung with hanger 595 on the guide rod 594, and hanger 595 is enclosed within on the guide rod 594 through guide pin bushing 596; Frame 592 is provided with a pair of reciprocating motion sprocket wheel 593; Be arranged with chain 591 on two sprocket wheels 593, the top connector 597 of hanger 595 is fixed on the chain 591, and the bottom of hanger 595 is fixed with electrostatic spraying gun 51.The utmost point pin of electrostatic spraying gun 51 nozzles or spray cup are metal, connect high-frequency and high-voltage electrostatic generator negative pole.The high-frequency and high-voltage electrostatic generator is supplied with the high voltage low current of the usefulness of spraying paint, and forms electric field (spray gun connects negative pole, is sprayed thing to connect positive pole) at spray gun and between by the spray workpiece.The lacquer powder by lacquer powder pumping electrostatic spraying gun, has been gone up negative electrical charge by being with in the nozzle entering electromagnetic field in storage tank, thereby the directed quilt spray thing surface of flying to positive charge.
Fig. 4 is the front view of machine room; Fig. 5 is the structural representation of filter core post.Like Fig. 4, shown in Figure 5, vertically be provided with a plurality of filter core posts 74 in the gas material separator box 7, filter core post 74 profiles are the garden tubular, and the two ends of filter core post 74 have end cap 741, and end cap 741 selects for use Rustproof Steel Plate thick more than the 8mm to be stamped to form.The paper facer of filter core post 74 has the perpendicular line 741 of folding pleat of rule, and folding pleat end 743 arc transition improve effective filtration area, and filter efficiency is best, and prolong service life.The paper facer of filter core is through resin treatment, and is not only nonhygroscopic but also have the mechanical strength of the high total blowback air-flow of anti-arteries and veins.
Filter core post 74 upper end covers are provided with steam vent 742, steam vent 742 and 71 UNICOMs of wind mixed chamber; Be provided with distributing pipe 75 in the wind mixed chamber 71; Distributing pipe 75 is connected with high-pressure pump 110 through pipeline 112, and distributing pipe 75 is provided with a plurality of arms corresponding with the filter core post 751, and the end of arm 751 is provided with air valve 76; Air valve 76 is by Single-chip Controlling, and contactless output is switched.Single-chip microcomputer blowback time and the pulse width of being provided with able to programme.
The valve 761 of air valve 76 is connected with the tracheae 79 of regurgitating on being arranged on filter core post axis, and the end of regurgitating tracheae 79 is provided with H shape jet pipe 77.Can know by Fig. 6, Fig. 7; Offer a plurality of apertures 773 on the both sides straight tube of H shape jet pipe 77 (771, the 772) tube wall; Wherein the aperture 773 of left side straight tube 771 preferably distributes so that 90~180 ° angular range is axially even on tube wall; The aperture 773 of right side straight tube 772 preferably axially evenly distributes with 0~-90 ° angular range on tube wall, and it is higher that the efficient of cartridge surface accumulated powder is removed in evidence like this.
The centre of the tube connector 775 between the both sides straight tube (771,772) and a sleeve pipe 78 UNICOMs, down has closed airtight bearing 783 in the sleeve pipe 78, and the axis hole 781 of airtight bearing 783 is enclosed within to be regurgitated on the tracheae 79.The pulse backblowing air communication is crossed and is regurgitated valve and blow out from the aperture on the H shape jet pipe 77 left and right side straight tubes; The reaction force that the both sides aperture produces makes H shape jet pipe 77 fast rotational and forms the rotation air knife; Scrape the accumulated powder of sweeping cartridge surface, reach the purpose of comparatively thoroughly removing the cartridge surface accumulated powder.