CN1986076B

CN1986076B - Sprayer

Info

Publication number: CN1986076B
Application number: CN2005101212234A
Authority: CN
Inventors: 萧博元
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2005-12-23
Filing date: 2005-12-23
Publication date: 2011-06-08
Anticipated expiration: 2025-12-23
Also published as: CN1986076A

Abstract

The sprayer includes one spray gun and one paint tank. The spray gun includes an sucking pipe, one gas filling pipe and one nozzle connected to the paint tank. The paint tank includes one tank and one filtering net, which is set inside the tank to separate the inside into two, one upper and one lower, parts. The tank is communicated with atmosphere, and the lower part is communicated with the sucking pipe and the gas filling pipe through pipeline with valves for controlling the opening and closing of the sucking pipe and the gas filling pipe separately. The sprayer has high filtering speed, high filtering effect and high spraying effect.

Description

Spray equipment

[technical field]

The invention relates to a kind of spray equipment, especially about a kind of spray equipment of tool filter.

[background technology]

Usually, we are at various product surface spray coating one coatings such as computer cabinet, display, television set even mobile phones, thereby realize effect attractive in appearance and the protection body surface simultaneously.The conventional spray paint device is the directly ejection after pulling trigger of the coating in its paint can, yet the coating spraying is very meticulous technology, the not good pigment aggregation of dispersion is arranged in the coating usually, this pigment aggregation will cause paint film defect when being sprayed onto product surface, make product surface more fragile, influence attractive in appearance simultaneously.

The Chinese patent of bulletin disclosed a kind of spray equipment No. 93218471.5 on May 18th, 1994, it is provided with a filter cup in paint can, establish screen pack in the filter cup, filter the not good pigment aggregation of dispersion in the coating thus, make the coating of ejection more even, thereby make spraying effect better.Yet the shortcoming of this spray equipment is that its screen pack passes through screen pack for the gravity by coating, because the general viscosity of coating is higher, thus difficult through screen pack, so the rate of filtration is slower, and in addition, if it is not good that the screen pack grid is strengthened filter effect.

[summary of the invention]

In view of this, provide a kind of tool filter and good filtration effect, fireballing spray equipment in fact for necessary.

Described spray equipment comprises a spray gun and a paint can.This spray gun comprises exhaust tube, gas tube and nozzle, and nozzle communicates with paint can; This paint can comprises tank body and screen pack, and screen pack is located in the tank body and tank body is divided into top and bottom, and tank body communicates with atmosphere; The tank body bottom of this paint can is communicated with exhaust tube and gas tube respectively by pipeline, and this pipeline is provided with valve body, and this valve body control exhaust tube and gas tube communicate with tank body and close.

Relative prior art, spray equipment of the present invention is extracted the gas of tank body bottom out by exhaust tube, makes the air pressure of the air pressure of tank body bottom less than top, thereby makes coating under pressure quickly by screen pack, and filter effect is better.

[description of drawings]

Fig. 1 is the partial sectional view of spray equipment preferred embodiment off position of the present invention.

Fig. 2 is the bleed partial sectional view of filtration state of spray equipment preferred embodiment of the present invention.

Fig. 3 is the partial sectional view of spray equipment preferred embodiment spraying state of the present invention.

[specific embodiment]

See also Fig. 1, preferred embodiment spray equipment 10 of the present invention comprises spray gun 102 and paint can 104.

Be provided with an interconnection 1022 in this spray gun 102.One piston 1024 is located in the interconnection 1022 slidably, and the inwall of piston 1024 and interconnection 1022 fits tightly and gas can not be passed through.Offer a horizontal L shaped breather pipe 1026 in this piston 1024.One end of this interconnection 1022 is offered an outlet (figure is mark not), one appendix 106 and an air jet pipe 109 all are communicated with this outlet, this appendix 106 comprises one first delivery outlet 1062, this air jet pipe 109 comprises one first input port 1094, is respectively equipped with a

check valve

1064,1092 on appendix 106 and the air jet pipe 109.Also be provided with an exhaust tube 1027 and a gas tube 1028 in this spray gun 102, this exhaust tube 1027 is communicated with a vavuum pump (figure does not show), this gas tube 1028 is communicated with an air compressor machine (figure does not show), and this exhaust tube 1027 communicates with interconnection 1022 respectively with gas tube 1028.The outlet of exhaust tube 1027, gas tube 1028 and interconnection 1022 is arranged and is communicated with interconnection 1022 along the glide direction of piston 1024 successively.

This spray gun 102 comprises that also one is positioned at the nozzle 1029 and a trigger 110 of its end.Coating is from these nozzle 1029 ejections, and nozzle 1029 also includes ejiction opening (figure does not show), atomising device (figure does not show) etc., and it can be general structure, so this no longer superfluous chatting.One end of this trigger 110 is pivotally connected on the spray gun 102 by a screw or pin etc. (figure is mark not), and its middle part links to each other with a connecting rod 112.The two ends of this connecting rod 112 are connected to piston 1024 in this trigger 110 and the spray gun 102 by a hinge respectively, and connecting rod 112 can be distinguished relative to trigger 110 and piston 1024 and rotates thus.Two flexible blocks 1030 are set, in order to the position of limit trigger 110 on the spray gun 102.110 of cockings can promote connecting rod 112 and then promote piston 1024, thereby the breather pipe 1026 of piston 1024 is communicated with exhaust tube 1027 and gas tube 1028 respectively.

This paint can 104 comprises a tank body 1042, a lid 1044 and a screen pack 1046.This tank body 1042 is that an end opens wide, the cylinder of other end sealing, and it is divided into top 1048 and bottom 1050 by described screen pack 1046.Lid 1044 is placed on the tank body 1042, and the open end sealing with tank body 1042 offers a plurality of through holes 1052, thereby the top 1048 of tank body 1042 is communicated with atmosphere on it.What this paint can 104 also comprised the spray pipe 1054 of a tool second delivery outlet 1055 and a tool second input 1058 goes into tracheae 1057, spray pipe 1054 is provided with a check valve 1056, spray pipe 1054 and go into tracheae 1057 and all communicate with the bottom 1050 of tank body 1042, and spray pipe 1054 is connected in 1050 bottoms, bottom, goes into tracheae 1057 and is connected in 1050 bottoms, bottom.Second delivery outlet 1055 of spray pipe 1054 is connected with first input port 1094 of air jet pipe 109, and this spray pipe 1054 also communicates with the nozzle 1029 of spray gun 102, and second input port 1058 of going into tracheae 1057 is connected with first delivery outlet 1062 of appendix 106.

When this spray equipment 10 did not use, trigger 110 was in a primary importance, at this moment, and the breather pipe 1026 of piston 1024 and exhaust tube 1027 and gas tube 1028 neither communicating, state promptly shown in Figure 1.

When using these spray equipment 10 sprayed coatings, at first cocking 110, piston 1024 slides in interconnection 1022, when trigger 110 is run into the block 1030 of close trigger, the breather pipe 1026 of piston 1024 communicates with exhaust tube 1027, vavuum pump is bled outwardly from exhaust tube 1027, at this moment, check valve 1064 is opened,

check valve

1092,1056 close, thereby the gas in tank body 1042 bottoms 1050 of paint can 104 is taken out, make the air pressure of the air pressure of tank body 1042 bottoms 1050 less than top 1048, the coating in tank body 1042 tops 1048 enters in the bottom 1050 through screen pack 1046 under pressure, and coating is filtered net 1046 filtrations thus, the realization filtration of bleeding, state promptly shown in Figure 2; Continue cocking 110, trigger 110 is met another block 1030, piston 1024 continues to slide in interconnection 1022, when trigger 110 is met another block 1030, the breather pipe 1026 of piston 1024 communicates with gas tube 1028, air compressor machine is inflated in gas tube 1028, at this moment, check valve 1064 is closed,

check valve

1056,1092 open, and the coating in tank body 1042 bottoms 1050 of paint can 104 sprays spray equipments 10 from nozzle 1029 because gravity and air-flow effect flow into spray pipe 1054 under the gas effect of coating in air jet pipe 109, realize sprayed coating, state promptly shown in Figure 3.

Be appreciated that paint can 104 can directly be located on the spray gun 102 of spray equipment 10, it also can separate with spray gun 102.The through hole 1052 of lid 1044 can be individual arbitrarily.In addition, can omit into tracheae 1057, appendix 106 and

check valve

1056,1064,1092, and in establish a check valve near nozzle 1029 places, so, closed check valve when bleeding, gas in tank body 1042 bottoms 1050 is extracted out via spray pipe 1054 and air jet pipe 109, and check valve is opened under the gas effect during inflation, and coating flows out and jetting nozzle 1029 under the gas effect from spray pipe 1054.

Claims

1. spray equipment, it comprises spray gun and paint can, and spray gun comprises nozzle, and nozzle communicates with paint can, and paint can comprises tank body, it is characterized in that: spray gun also comprises exhaust tube and gas tube; Paint can also comprises screen pack, and screen pack is located in the tank body and tank body is divided into top and bottom, and tank body communicates with atmosphere; The tank body bottom of this paint can is communicated with exhaust tube and gas tube respectively by pipeline, and this pipeline is provided with valve body, and this valve body control exhaust tube and gas tube communicate with tank body and close.

2. spray equipment as claimed in claim 1, it is characterized in that: this pipeline comprises appendix and the air jet pipe of being located on the spray gun and is located at the spray pipe on the paint can and goes into tracheae, the appendix of spray gun is communicated with the tracheae of going into of paint can, and the air jet pipe of spray gun is communicated with the spray pipe of paint can.

3. spray equipment as claimed in claim 2, it is characterized in that: be provided with a passage in this spray gun, be provided with in the passage and the airtight slidably piston that combines of passage, offer the breather pipe that passage and exhaust tube, passage can be communicated with gas tube in the piston, passage one end is located in an outlet.

4. spray equipment as claimed in claim 3, it is characterized in that: the appendix of this spray gun and air jet pipe are by described outlet and channel connection, valve body comprises the check valve on the spray pipe of appendix, air jet pipe and the paint can of being located at spray gun respectively, and this exhaust tube, gas tube and outlet are arranged and communicated with passage in the spray gun along the glide direction of piston successively.

5. spray equipment as claimed in claim 1 is characterized in that: this pipeline comprises air jet pipe of being located on the spray gun and the spray pipe of being located on the paint can, and the spray pipe of the air jet pipe of spray gun, nozzle and paint can is interconnected.

6. spray equipment as claimed in claim 5, it is characterized in that: be provided with a passage in this spray gun, be provided with in the passage one with the airtight slidably piston that combines of passage, offer the breather pipe that passage and exhaust tube, passage can be communicated with gas tube in the piston, passage one end is located in an outlet.

7. spray equipment as claimed in claim 6, it is characterized in that: the appendix of this spray gun is by described outlet and channel connection, valve body comprises the check valve of being located near the nozzle place, and this exhaust tube, gas tube and outlet are arranged and communicated with passage in the spray gun along the glide direction of piston successively.

8. as claim 4 or 7 described spray equipments, it is characterized in that: this spray equipment also comprises trigger and connecting rod, these connecting rod two ends link to each other with trigger and piston respectively by rotating hinge, thereby trigger can rotate drivening rod and piston moves together relative to spray gun.

9. spray equipment as claimed in claim 8 is characterized in that: this spray gun is provided with two blocks, and when trigger was run into a block, the breather pipe of piston was communicated with exhaust tube and passage, and when trigger was met another block, the breather pipe of piston was communicated with gas tube and passage.

10. spray equipment as claimed in claim 1 is characterized in that: this paint can also comprises a lid, offers at least one through hole on the lid, and described tank body one end opens wide, other end sealing, and lid is located at the tank body open end.

11. spray equipment as claimed in claim 1 is characterized in that: this exhaust tube links to each other with a vavuum pump, and this gas tube links to each other with a pneumatics pump.