CN101703973A

CN101703973A - Powder spray gun with built-in gun pin powder-cleaning system

Info

Publication number: CN101703973A
Application number: CN200910204338A
Authority: CN
Inventors: 李志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-19
Filing date: 2009-10-19
Publication date: 2010-05-12

Abstract

The invention discloses a powder spray gun with a built-in gun pin powder-cleaning system, which is characterized by comprising a gun body, a gun head seat and a gun pin. The gun body comprises a powder passage, a main air inlet passage, a first air passage, a second air passage, a air chamber, a first air valve seat, a first through hole, a second through hole, a third through hole, a fourth through hole and a fifth through hole; the first through hole is communicated to the main air inlet passage and the first air valve seat, and the second through hole is communicated to the first air valve seat and the air chamber; and an automatic powder-cleaning system is formed in the powder spray gun. The powder spray gun is convenient to use and improves the work efficiency.

Description

A kind of podwer gun of built-in gun pin powder-cleaning system

Technical field

The present invention relates to the electrostatic spraying field, the in particular a kind of podwer gun that can remove the powder that is coated on rifle pin front end automatically.

Background technology

In the prior art, the electrostatic dusting rifle is to add high-tension electricity at gun slot, when the powder that mixes with high pressure draught passes through gun slot, negative electrical charge on the induction band flies to workpiece then, and workpiece grounding is anodal, powder is under the effect that the positive negative of static is inhaled, be adsorbed on surface of the work equably,, just dissolve curing (or plasticizing) and become coating through the heating of baking oven uniform temperature.Present podwer gun mainly comprises gun barrel, be arranged at mixed powder tracheae in the gun barrel inner chamber, be arranged at gun barrel the place ahead discharging needle guard, be electrically connected and be arranged at spray point (rifle pin) in the discharging needle guard inner chamber with the voltage output end of high pressure generator, be enclosed within outside the described discharging needle guard and the nozzle that is connected with the mixed powder tracheae, the outer surface that is arranged at the discharging needle guard front end are trumpet-shaped powder retaining ring; In the practical application, because Electrostatic Absorption, rifle pin front end often coats a large amount of powder, influences the discharge effect of rifle pin.

Therefore, there is defective in prior art, needs to improve.

Summary of the invention

Technical problem to be solved by this invention is at the deficiencies in the prior art, to provide the podwer gun that can remove the powder particle that is coated on rifle pin front end in a kind of work progress automatically.

Technical scheme of the present invention is as follows:

A kind of podwer gun of built-in gun pin powder-cleaning system is characterized in that, comprising: rifle body, rifle headstock and rifle pin;

Described rifle body comprises: powder passage, main inlet channel, first gas passage, second gas passage, air chamber, first air valve seat, first through hole, second through hole, third through-hole, fourth hole and fifth hole; Described first through hole connects main inlet channel and described first air valve seat, and described second through hole connects described first air valve seat and described air chamber,

The right flank of described rifle body is provided with first gas passage, the left surface of described rifle body is provided with second gas passage, described third through-hole connects the left surface of described air chamber and described rifle body, described fourth hole connects the left surface and the right flank of described rifle body, described fourth hole is communicated with described third through-hole and described first gas passage, described fifth hole connects the left surface and the right flank of described rifle body, is communicated with described first gas passage and described second gas passage;

Described rifle headstock and described rifle body closely connect, described rifle pin is the hollow conductive conduits, described rifle headstock comprises: the 3rd gas passage and the 4th gas passage, lead channels, described the 3rd gas passage is communicated with first gas passage, described the 4th gas passage and described second gas passage are communicated with, it is that the described rifle pin of a road direction is exported clear powder air-flow that described the 3rd gas passage and described the 4th gas passage converge in the rifle headstock, lead is set in the described lead channels is electrically connected, provide high-pressure electrostatic to described rifle pin with described rifle pin.

Described podwer gun is provided with an air volume regulating valve door at the fourth hole and the first gas passage junction, control gas flow size.

Adopt such scheme, the present invention is by ingenious main inlet channel, first gas passage, second gas passage, air chamber, first air valve seat, first through hole, second through hole, third through-hole, fourth hole and the fifth hole of being provided with, in podwer gun, form an automatic powder-cleaning system, the convenient use raised the efficiency.

Description of drawings

Fig. 1 is a podwer gun cut away left side view of the present invention;

Fig. 2 is the partial enlarged drawing of podwer gun cut away left side view of the present invention;

Fig. 3 be podwer gun of the present invention left side fragmentary sectional elevation view and with the installation diagram of rifle headstock;

Fig. 4 is that the A-A of Fig. 3 is to view;

Fig. 5 is the partial enlarged drawing of Fig. 3

Fig. 6 is the cutaway view of podwer gun right flank of the present invention;

The fragmentary sectional elevation view on Fig. 7 podwer gun of the present invention right side and with the installation diagram of rifle headstock, gun barrel, rifle pin.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.

The invention provides a kind of podwer gun of built-in gun pin powder-cleaning system, as shown in Figure 7, comprising: rifle body 1 (being divided into right side 1-1 and left side 1-2),, rifle headstock 2 and rifle pin 4, and parts such as gun barrel 3 and flow deflector; Gun barrel 3 has been a prior art with flow deflector, and the present invention repeats no more.

As Fig. 1, Fig. 3, Fig. 6 and shown in Figure 7, described rifle body 1 comprises: powder path 10, main inlet channel 11, first gas passage 15, second gas passage 14, air chamber 16, first air valve seat 12, first through hole 111, second through hole 121, third through-hole 122, fourth hole 143 and fifth hole 141; Described first through hole 111 connects main inlet channel 11 and described first air valve seat 12, and described second through hole connects described first air valve seat 12 and described air chamber 16; About the detailed structure of second through hole 121, third through-hole 122, please referring to the partial enlarged drawing 2 of Fig. 1.

As Fig. 3, Fig. 5 and shown in Figure 7, the right flank 1-1 of described rifle body is provided with first gas passage 15, the left surface 1-2 of described rifle body is provided with second gas passage 14, described third through-hole 122 connects the left surface 1-2 of described air chamber 16 and described rifle body, described fourth hole 143 connects the left surface 1-2 and the right flank 1-1 of described rifle body, described fourth hole 143 is communicated with described third through-hole 122 and described first gas passage 15, described fifth hole 141 connects the left surface 1-2 and the right flank 1-1 of described rifle body, is communicated with described first gas passage 15 and described second gas passage 14;

As Fig. 4 and shown in Figure 7, described rifle headstock 2 closely connects with described rifle body 1, described rifle pin 4 is the hollow conductive conduits, described rifle headstock comprises: the 3rd gas passage 21 and the 4th gas passage 22, lead channels 23, described the 3rd gas passage 21 is communicated with first gas passage 15, described the 4th gas passage 22 and described second gas passage 14 are communicated with, it is the clear powder air-flows of described rifle pin 4 outputs of a road direction that described the 3rd gas passage 21 and described the 4th gas passage 22 converge in the rifle headstock, lead is set in the described lead channels is electrically connected, provide high-pressure electrostatic to described rifle pin with described rifle pin 4.

As shown in Figure 7, described podwer gun can also be provided with an air volume regulating valve door 32 at fourth hole 143 and first gas passage, 15 junctions, is used to control the gas flow size, regulates as required.

When work, the powder path 10 connects powder barrel, main inlet channel 11 connects gases at high pressure, press the air valve that is installed in the air valve seat, the air circuit breaker of this air valve while control circuit and main inlet channel, the interior gas of main inlet channel this moment passes through first through hole 111, enter in the air valve seat 12, enter afterwards in second through hole 121, be third through-hole 122, fourth hole 143, first gas passage 15 successively, in first gas passage 15, air-flow divides two-way, and one the tunnel enters fifth hole 141, second gas passage 14, the 4th gas passage 22, rifle pin; One the tunnel enters the 3rd gas passage 21 rifle pins; Rifle needle blow by hollow goes out gas, removes to be coated on rifle pin powder on every side.

Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.

Claims

1. the podwer gun of a built-in gun pin powder-cleaning system is characterized in that, comprising: rifle body, rifle headstock and rifle pin;

2. podwer gun according to claim 1 is characterized in that, at described fourth hole and the described first gas passage junction one air volume regulating valve door is set, control gas flow size.