CN102451801B - Spray gun and coating system - Google Patents
Spray gun and coating system Download PDFInfo
- Publication number
- CN102451801B CN102451801B CN201110314116.9A CN201110314116A CN102451801B CN 102451801 B CN102451801 B CN 102451801B CN 201110314116 A CN201110314116 A CN 201110314116A CN 102451801 B CN102451801 B CN 102451801B
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- Prior art keywords
- flow path
- coating
- spray gun
- gas
- open
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
- B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
- B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
- B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
- B05B12/1409—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet the selection means being part of the discharge apparatus, e.g. part of the spray gun
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
- B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
Landscapes
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
Abstract
The present invention relates to a spray gun and a coating system. The spray gun of the invention is provided with a body (250,30) and an opening/closing valve (40). The body (250,30) is provided with a plurality of paint flow paths (21), paint discharge holes (21b) which are respectively provided at one end of each paint flow path, and an air flow path (22) which supplies compressed air for atomizing the paint that is discharged from the paint discharge holes (21b), wherein the opening/closing valve (40) is provided on the body (20) and performs opening/closing on the paint flow paths (21).
Description
Technical field
The present invention relates to coating is atomized and cover with paint, lacquer, colour wash, etc. in the spray gun used by spray jewelry and the Finish System using this spray gun.
Background technology
Be coated with in the covering with paint of jewelry attachment coating at the fabrication etc. such to the industrial products such as car body, family's electrical article, furniture, the inwall of building, outer wall, bridge, widely used the spray gun having and the atomization of the coating of discharge is carried out the formation of spraying.
In addition, as this spray gun, also provide a kind of spray gun (below also referred to as polychrome covering with paint spray gun) multiple coating different from each other for color atomization also can being covered with paint, lacquer, colour wash, etc. simultaneously polychrome coating.
This spray gun is such as disclosed in Japanese Patent No. 3451164 publication, Japanese Patent No. 3946881 publication and Japanese Unexamined Patent Publication 2007-216220 publication.
Cover with paint, lacquer, colour wash, etc. in the method for polychrome coating at use polychrome covering with paint spray gun simultaneously, do not make the coating of more than dichromatism be attached to by painting jewelry with making the complete colour mixture of the coating of more than dichromatism.By the method, the multicolour pattern (polychrome mixed pattern) that can be mixed with different color by the particle of the size of usual visual identification can be formed.
As the polychrome mixed pattern formed by using polychrome covering with paint spray gun to cover with paint, lacquer, colour wash, etc. polychrome coating simultaneously, such as, enumerate the stone style pattern of marble pattern, granite pattern and so on.In addition, the various multicolour patterns such as leather patterns style, wood grain style, fur style, woven design style and Japanese paper style can also in addition be enumerated.
Above-mentioned spray gun utilizes and the coating atomization supplied via flexible pipe etc. from paint feeding device is sprayed from the atomizing gas (compressed air) of compressed air source supply.
As the formation of this spray gun, usually there will be a known the formation of the nozzle having and offer coating tap in the leading section of spray gun and the cone tubular lid being installed on this spray nozzle front end portion.
Coating to spray gun supply is directed to nozzle by the painting flow path being located at rifle, discharges from the coating tap being located at spray nozzle front end.In addition, in this spray gun, to being formed at the inner side of lid and the space of guaranteeing around spray nozzle front end, by atomizing gas supplying flexible pipe supply atomizing gas.Thus, the coating of discharging from the coating tap being located at spray nozzle front end is atomized by atomizing gas, and the jet offered from the front end at lid sprays.
In addition, as spray gun, also provide the various spray guns (spray gun of figure gas system) that can be formed by supply figure gas and cover with paint, lacquer, colour wash, etc. figure.
In addition, as only having the spray gun that is coated with the monochrome covering with paint of flow path, the spray gun possessed with the pin type coating passage opening/closing mechanism of trigger interlock is widely used.
In the coating passage opening/closing mechanism of the spray gun of this monochrome covering with paint, be provided with pin travel mechanism at the rear side of nozzle.In addition, the valve seat being formed as taper hole shape and the pin that can crimp valve seat or leave from valve seat is provided with in the midway being coated with flow path.In addition, due to pin travel mechanism and trigger interlock, in painting flow path, pin is made to move to spray nozzle front end or pin is left from spray nozzle front end so pass through operation trigger.That is, by making pin crimp valve seat or make pin leave from valve seat, opening and closing is carried out to painting flow path.
The formation of this coating passage opening/closing mechanism is complicated, and by multiple assembling parts is assembled coating passage opening/closing mechanism at the gun main body being formed with painting flow path, therefore assembling operation expends time in.
On the other hand, in the polychrome covering with paint spray gun with multiple painting flow path, generally for and avoid the mechanism of spray gun complicated and the supply control valve in order to use to spray gun supply coating is located at outside the system of spray gun, use spray gun.
As mentioned above, controlling in the formation of the supply action of coating by the valve be configured at outside the system of spray gun, due to from valve to the distance of coating tap, even if so stop the supply of coating, the action of discharging coating from coating tap often can not be stopped immediately.In this situation, after stopping supply coating, coating can be discharged from coating tap, can pollute the front end of rifle because of this coating.
Therefore, at present, the supply of the coating undertaken by the supply action or regulating valve controlling Compressed Gas one of (atomizing gas and figure gas at least), solves the problem of the front end stopping pollution rifle as described above after coating supply.
But the supply of this solve scheme needs the supply control of adjustment Compressed Gas and valve to carry out coating according to the flow of coating or physical characteristic (viscosity etc.) controls, and makes adjustment expend time in.
Particularly when using the polychrome of polychrome covering with paint spray gun to cover with paint, lacquer, colour wash, etc., consider the flow of assorted coating or the deviation of physical characteristic (viscosity etc.), the supply of the coating that the supply control of adjustment Compressed Gas and valve carry out controls, and makes adjustment become so uneasy.
Summary of the invention
The present invention sets up in view of the foregoing, its object is to provide can prevent from simply polluting the spray gun of the front end of rifle because of the coating of discharging from coating tap and using the Finish System of this spray gun after the supply stopping coating.
In order to solve above-mentioned problem, the invention provides following formation.
First aspect present invention provides a kind of spray gun, and it possesses: main body, and it has multiple painting flow path, is located at the coating tap of one end of described painting flow path, supplies the compressed-air actuated air flow circuit of the coating atomization of discharging from described coating tap; Open and close valve, it is located at described main body, carries out opening and closing to described painting flow path.
In the spray gun of first aspect present invention, preferably, described main body has the coating inlet of the opposite location being located at described coating tap, described painting flow path is formed in the mode extended towards described coating tap from described coating inlet, described open and close valve be located at the length direction of described painting flow path central portion or than the central portion of the length direction of described painting flow path closer to the position of front side.
In the spray gun of first aspect present invention, preferably, there are the multiple open and close valves arranged in the mode corresponding with the multiple described painting flow path being formed at described main body, described main body has the opening concavities making described coating tap and described air flow circuit opening, and described multiple open and close valve is distributed is supposing the multiple positions around the extended line that the central axis of described opening concavities is extended.
In the spray gun of first aspect present invention, preferably, have: gun main body, its spray nozzle part that there is leading section and offer described coating tap in described leading section, form described main body, be formed with described painting flow path and described air flow circuit; The lid of cone tubular, it is arranged on described leading section, receives described spray nozzle part, offers described coating tap and described air flow circuit, described open and close valve is arranged on described gun main body in the opening concavities being opened in described lid.
In the spray gun of first aspect present invention, preferably, possess: figure gas ejection ports, it is located at described main body, jet graphics gas; Figure gas flow path, it is located at described main body, has described figure gas ejection ports.
Second aspect present invention provides a kind of Finish System, and it possesses: the spray gun of above-mentioned first aspect; To the paint feeding device of the described painting flow path supply coating of described spray gun; Described air flow circuit to described spray gun supplies compressed-air actuated atomization compressed air feedway; Control the action of the open and close valve of described spray gun and switch the controller for opening and closing of the opening and closing of described painting flow path.
According to the present invention, can shorten from the valve (open and close valve) of the supply action controlling coating to the distance of coating tap, the situation polluting the front end of rifle after stopping supply coating because of the coating of discharging from coating tap can be prevented simply and reliably.
Accompanying drawing explanation
Fig. 1 is the figure of the spray gun representing an embodiment of the present invention;
Fig. 2 is the figure representing the structure observed from the rear side of the spray gun shown in Fig. 1;
Fig. 3 is the profile representing the nozzle of the spray gun shown in Fig. 1 and the structure of lid;
Fig. 4 be represent from the front side of the spray gun shown in Fig. 1 to the figure of structure;
Fig. 5 is the figure of the painting flow path of the spray gun shown in key diagram 1 and the relation of open and close valve;
Fig. 6 is the figure of the concrete example of the open and close valve representing the spray gun shown in Fig. 1;
Fig. 7 illustrates the figure using one of Finish System of the spray gun formation shown in Fig. 1 routine;
Fig. 8 is the figure of the spray gun representing an embodiment of the present invention, represents the spray gun of the open and close valve of the rear side had by being located at rifle body and the formation to painting flow path supply coating;
Fig. 9 is the figure of the spray gun representing an embodiment of the present invention, represents the spray gun of the open and close valve of the rear side had by being located at rifle body and the formation to painting flow path supply coating;
Figure 10 is the figure of the spray gun representing an embodiment of the present invention, represents the coating inlet that has by being connected with the open and close valve being located at rifle external week and by coating to the spray gun being coated with the formation that flow path supplies.
Detailed description of the invention
Below, with reference to accompanying drawing, the spray gun of an embodiment of the present invention, Finish System are described.
As shown in Fig. 1 ~ Fig. 5, the spray gun 10 illustrated in present embodiment is to be atomized by multiple (being four kinds) coating different from each other for color and polychrome coating be covered with paint, lacquer, colour wash, etc. the polychrome covering with paint spray gun in being used by painting jewelry simultaneously in present embodiment.
This spray gun 10 make the coating of more than dichromatism completely not colour mixture and coating more than dichromatism is attached to by painting jewelry on.Can be formed by using this spray gun 10 by the particle of the size of usual visual identification with the multicolour pattern of different color mixture (color mix pattern), that is, can cover with paint, lacquer, colour wash, etc. polychrome coating simultaneously.
In addition, about this spray gun 10, in this manual, the position (position on the left of in Fig. 1) being provided with lid 30 is called " front (front, front side, front position) ", the opposition side (position on the right side of in Fig. 1) being provided with the position of lid 30 is called " rear (rear, rear side, rear position) ", present embodiment is described.
In addition, in this description, " fore-and-aft direction " refers to from the position being provided with lid 30 (front position) towards the direction of the position (rear position) contrary with the position being provided with lid 30 or from rear position towards the direction of front position.
In addition, central axis of the present invention and extended line represent with chain-dotted line in figures 1 and 3.
As shown in Figure 1, spray gun 10 has gun main body 20 and lid 30.Gun main body 20 has rifle body 24 and nozzle 25 (spray nozzle part), and rifle body 24 is fixed with nozzle 25.In addition, the leading section that 30 are installed in gun main body 20 is covered.
Nozzle 25 is formed as the diameter of nozzle 25 (front end) shape of reducing gradually toward the front, i.e. taper.The rifle body 24 of gun main body 20 is located at the rear side of position, the i.e. nozzle 25 of the opposition side, front end of nozzle 25.Gun main body 20 and lid 30 form the main body of spray gun 10.
Nozzle 25 has the coating tap 21b offered in the anterior position (one end) of nozzle 25.
As shown in Figures 1 and 3, gun main body 20 is formed with painting flow path 21, atomizing gas stream 22 (the first air flow circuit) and figure gas flow path 23 (the second air flow circuit).Coating flows in painting flow path 21.Atomizing gas stream 22 is that flowing has the coating in order to will discharge from nozzle 25 to be atomized and the compressed-air actuated air flow circuit of use, supplies compressed air to coating tap 21b.In this formation, coating flows in painting flow path 21, utilizes the compressed air of the supply by atomizing gas stream 22 to be atomized, while discharge from coating tap 21b as discharging coating.
In addition, in the figure gas flow path 23 being located at gun main body 20, supply the compressed air (figure gas) imported from the gas access 23a of the outer peripheral face being opened in rifle body 24.Figure gas flow path 23 is that flowing has the compressed-air actuated air flow circuit sprayed towards the injection stream of the coating of atomization.
This figure gas is sprayed from the figure gas ejection ports 23b being opened in lid 30 by figure gas flow path 23.
Be coated with flow path 21, atomizing gas stream 22 and figure gas flow path 23 for being formed at the hole of spray gun 10.
At this, the outer peripheral face of rifle body 24 refers to the face of the rifle body 24 on the central axis being arranged in nozzle 25 (specifically for supposing the extended line making central axis extend) and the circumference in the cross section of the central axis upright of nozzle 25.
In addition, on this gun main body 20, rifle body 24 is provided with the open and close valve 40 (aftermentioned) painting flow path 21 being carried out to opening and closing.Spray gun 10 comprises open and close valve 40.
As the formation of the rifle body 24 of gun main body 20, such as, can adopt integrated metallic drip molding, but be not limited thereto, also can adopt forming by multiple assembling parts.
The rifle body 24 of the gun main body 20 shown in Fig. 1 is made up of rifle phosphor bodies 241 and gas channel-forming member 242.Rifle phosphor bodies 241 and gas channel-forming member 242 are fixing and integrated by screw threads for fastening (omitting diagram) etc.Gas flow path forming member 242 is formed the gas access 22a of atomizing gas the stream 22 and gas access 23a of figure gas flow path 23.
Nozzle 25 is fixed on the front end of position, i.e. the rifle body 24 of rifle phosphor bodies 241 opposition side of gas flow path forming member 242, and thus, nozzle 25 is integrated with rifle body 24.Gas flow path forming member 242 is between rifle phosphor bodies 241 and nozzle 25.
Be coated with flow path 21 to be formed in the mode of the through gun main body 20 of the fore-and-aft direction of spray gun 10.
Atomizing gas stream 22 and figure gas flow path 23 are formed in the mode extended to the front side of spray gun from gas access 22a, 23a of being opened in gas flow path forming member 242 outer peripheral face.Atomizing gas stream 22 and figure gas flow path 23 are not formed on rifle phosphor bodies 241.
In addition, specifically forming of the rifle body 24 become by multiple assembling parts is not limited to illustrated structure.As the formation of rifle body 24, such as, also can adopt forming by the assembling parts of more than three.
In addition, the atomizing gas stream 22 of gun main body 20 and the position being formed with gas access 22a, 23a of figure gas flow path 23 can suitably be changed.
In addition, gun main body also can be made up of the parts being formed with rifle body and nozzle.
As shown in Figure 3, the lid 30 of spray gun 10 by nut portions 32, cover main wall portion 31 and form.Specifically, nut portions 32 is formed as tubular.Cover main wall portion 31 and there is the taper inboard aperture 31a arranged in the mode of the main wall portion 31 of through lid.In addition, at the axis direction of nut portions 32, be configured with the main wall portion 31 of lid in one end of nut portions 32.
In addition, threaded portion 32a (internal thread part) is formed with in the inner circumferential of the nut portions 32 of lid 30.In addition, threaded portion 24a (external thread part) is formed with in the periphery of the leading section (end of configuration nozzle 25) of rifle body 24.By threaded portion 32a and threaded portion 24a each other screw thread screw up, nut portions 32 is installed in the leading section of rifle body 24, and nozzle 25 is incorporated in the inner side of nut portions 32 in the mode being positioned at gun main body 20 leading section.
As shown in Figure 3, the inboard aperture 31a covering main wall portion 31 is formed as taper in the mode of the spatial spread in the mode, i.e. the inboard aperture 31a that increase gradually towards the area of section of inboard aperture 31a on the direction of rear position from front position.
In addition, inboard aperture 31a has the opening portion 31b being opened in the central portion covering main wall portion 31 front face side (front position).
The diameter that the nozzle 25 of gun main body 20 is formed as toward the front (front end) nozzle 25 reduces such taper gradually.
At the inboard aperture 31a of the main wall portion 31 of lid, the peripheral part of inboard aperture 31a rear end, be namely positioned at the position close to nozzle 25 periphery close to the peripheral part of the end of the inboard aperture 31a of the position of nut portions 32.Between inboard aperture 31a inner face and nozzle 25, guarantee there is gap 11a.
This spray gun 10 has the opening concavities 11 comprising gap 11a in the inner side of lid 30.The opening portion 31b covering the inboard aperture 31a of main wall portion 31 works as the opening portion of opening concavities 11.
Below, also the opening portion 31b of inboard aperture 31a is called the opening portion 11b of opening concavities 11.
At gun main body 20, be coated with flow path 21 and formed in the mode of the direction extension making the central axis of the inboard aperture 31a of the main wall portion 31 of lid extend along the fore-and-aft direction of gun main body 20, i.e. hypothesis, and arrange in the mode of through gun main body 20.
Be coated with flow path 21 to be formed in the mode of the rifle body 24 of through formation gun main body 20 and nozzle 25.
In addition, in the spray gun 10 of present embodiment, the central axis of the nozzle 25 of gun main body 20 aligns with the central axis (covering the central axis of the inboard aperture 31h of main wall portion 31) of opening concavities 11.
As shown in Figure 1, gun main body 20 is formed in the mode at length direction with elongated shape.At this, the length direction of gun main body 20 refers to the direction of the central axis (extended line that the central axis of the opening concavities 11 specifically, shown in Fig. 3 and hypothesis make this central axis extend) along opening concavities 11.
In addition, the rifle body 24 of gun main body 20 also with in the direction of the central axis along opening concavities 11, mode that namely length direction of rifle body 24 has an elongated shape formed.
On the direction of the central axis upright relative to opening concavities 11, the central part in the cross section of rifle body 24 is in supposing on the extended line making the central axis of opening concavities 11 extend.
But suitably can set the size (anteroposterior dimension) of the length direction of gun main body 20 and rifle body 24, gun main body 20 and rifle body 24 can not be formed with elongated shape.
In addition, in painting flow path 21, from coating inlet 21c to the midway of opening portion being positioned at coating tap 21b front end, coating does not leak.
Border between rifle body 24 and nozzle 25, form rifle body 24 parts between border (being made up of the situation of rifle body multiple parts), configuration prevents coating from the parts being coated with flow path 21 and leaking as required.Specifically, as shown in Fig. 3, Fig. 6, between rifle phosphor bodies 241 and gas flow path forming member 242, press from both sides the O type ring being inserted with and being represented by symbol 28.
As shown in Figure 1, be provided with in the leading section being coated with flow path 21 the coating tap 21b being opened in nozzle 25 front end.In addition, be provided with in the opposite location of coating tap 21b, the i.e. rearward end of painting flow path 21 the coating inlet 21c importing coating.
Coating inlet 21c be the rearward end of painting flow path 21 is expanded expand oral area.Coating inlet 21c in the rear end of gun main body 20, i.e. the open rearward end of the rifle body 24 of gun main body 20.
The area of section (flowing path section area) of this coating inlet 21c is larger than the area of section being coated with flow path main aperture portion 21a.This painting flow path main aperture portion 21a is in the part of painting flow path 21 between coating tap 21b and coating inlet 21c.
On the other hand, coating tap 21b is thinner than being coated with flow path main aperture portion 21a.That is, the area of section (flowing path section area) of coating tap 21b is less than the area of section being coated with flow path main aperture portion 21a.Coating tap 21b is pore.
In the present embodiment, multiple painting flow path 21 (quantity being coated with flow path 21 in Fig. 2 and Fig. 5 is four) is provided with at gun main body 20.Multiple painting flow path 21 configures in the mode of the surrounding being dispersed in the central portion in the cross section (cross section of rifle body 24) perpendicular to rifle body 24 length direction.
In addition, multiple painting flow path 21 is to be dispersed on rifle body 24 length direction, to suppose that the mode of the surrounding of the extended line making the central axis of opening concavities 11 extend configures.
As shown in Figure 2, the coating inlet 21c of the painting flow path 21 of gun main body 20 configures in the mode of the peripheral part being dispersed in the rear end face 24b of rifle body 24.
At this, rear end face 24b is the end face being configured with the opposition side of the position of nozzle 25 of rifle phosphor bodies 241.
The nozzle 25 of spray gun 10 has the front end face 25a formed relative to the central axis upright of nozzle 25 in the front end of nozzle 25.
On gun main body 20, each coating tap 21b be communicated with multiple painting flow path 21 is at the front end face 25a opening of nozzle 25.
On gun main body 20, atomizing gas stream 22 has the gas access 22a (atomizing gas entrance) of the outer peripheral face being opened in gun main body 20 (being specifically gas flow path forming member 242).Atomizing gas stream 22 is formed in the mode extending to opening concavities 11 from gas access 22a.
Atomizing gas stream 22 has the atomizing gas jet 22b being opened in opening concavities 11.
On gun main body 20, the local of atomizing gas stream 22 is at the through nozzle 25 of the length direction of stream, and atomizing gas jet 22b is formed on nozzle 25.
As shown in Figure 3, Figure 4, the coating tap 21b being coated with flow path 21 is formed in the position corresponding with the opening portion 31b of opening concavities 11 at the fore-and-aft direction of spray gun 10.
The multiple coating tap 21bs corresponding with multiple painting flow path 21 on the fore-and-aft direction of spray gun 1010 with location sets corresponding to the opening portion 31b with opening concavities 11 mode, be namely formed at nozzle 25 from the mode of the central portion set at nozzle 25 during front side spray gun 10.
To this, atomizing gas jet 22b when from front side spray gun 10, at the position opening that the central portion being formed with coating tap 21b than mouth 25 is more outward.That is, atomizing gas jet 22b is compared to coating tap 21b, at the position separated by a distance of the central axis from nozzle 25 (position from central axis leaves) opening.
When from front side spray gun 10, atomizing gas jet 22b is formed with three places (Fig. 4 is for everywhere) around the front end face 25a of central portion being arranged in nozzle 25.
On spray gun 10, multiple atomizing gas stream 22 is branched in gun main body 20.Specifically, the stream be communicated with a gas access 22a is branched into multiple stream in gun main body 20, is provided with multiple atomizing gas jet 22b in the mode that the multiple streams with branch are corresponding.
The gun main body 20 of spray gun 10 has the atomizing gas stream 22 of two bands, two atomizing gas jet 22b relative to a gas access 22a, have four atomizing gas jet 22b altogether.
On the other hand, flow path 21 is coated with in gun main body 20 Nei Bu branch.Nozzle 25 is provided with a coating tap 21b corresponding with a coating inlet 21c.
In the spray gun 10 with this formation, supply coating in painting flow path 21 by coating inlet 21c, supply compressed air (atomizing gas) at atomizing gas stream 22 by gas access 22a.Thus, the compressed air be ejected in opening concavities 21 from atomizing gas jet 22b by atomizing gas stream 22 is utilized to be atomized by being coated with flow path 21 from the coating that coating tap 21b discharges.And this coating be atomized (below also referred to as atomised coating) sprays from the opening portion 31b of opening concavities 11.
As shown in Figures 3 and 4, on spray gun 10, figure gas flow path 23 is formed in the mode extended from gas access 23a to figure gas ejection ports 23b.At this, gas access 23a is for being opened in the opening portion of the outer peripheral face of gun main body 20 (being specifically gas flow path forming member 242).In addition, figure gas ejection ports 23b is the opening portion being formed at lid 30.
A pair teat 33 is formed in the lid main board portion 31 of lid 30.A pair teat 33 is located at the both sides of lid main board portion 31 in the mode of opening portion 31b between a pair teat 33, and outstanding to the front side (opposition side of nut portions 32) of lid main board portion 31.
Figure gas ejection ports 23b is arranged on respect to one another of a pair teat 33.The injection stream of the atomised coating that the compressed air (figure gas) importing figure gas flow path 23 from gas access 23a can spray towards the opening portion 31b from opening concavities 11 by figure gas ejection ports 23b or spray towards the position of the injection stream close to atomised coating.
The teat 33 of lid 30 works as the figure gas spray nozzle part of jet graphics gas.But, as long as figure gas flow path 23 be the atomised coating that figure gas is sprayed towards the opening portion 31b from opening concavities 11 injection stream or towards the position that the injection 25 close to atomised coating is flowed can from figure gas spray P23b spray formation, the concrete formation of teat 33 can suitably design alteration.
In addition, spray gun 10 is corresponding with a pair figure gas spray nozzle part and have two figure gas flow paths 23, but the structure of figure gas flow path 23 can suitably change.
Secondly, the open and close valve 40 of spray gun 10 is described.
As shown in Figure 1, shown in Figure 5, open and close valve 40 is specially two-way valve.Fig. 6 represents the concrete example of this open and close valve 40.Open and close valve 40 shown in Fig. 6 is the two-way valve of gas-powered formula.
This open and close valve 40 has connection stream 41, clack box 42, valve seat 43, valve body 44, valve rod 45 and driven for opening and closing portion 46.
Be communicated with stream 41 to arrange in the mode of through clack box 42.Valve seat 43 is arranged on the midway being communicated with stream 41.Valve body 44 is provided with in the leading section of valve rod 45.Valve body 44 is crimped on valve seat 43 with moving of valve rod 45 or leaves from valve seat 43.Driven for opening and closing portion 46 has housing 46a, has the function making valve rod 45 movement.That is, driven for opening and closing portion 46 makes valve body 44 be crimped on valve seat 43 or valve body 44 is left from valve seat 43.Valve rod 45 has the base end part of the opposition side being positioned at leading section, and its base end part is inserted in housing 46a.
Driven for opening and closing portion 46 has to be accommodated with in housing 46a and will push away the elastic acting force giving as security valve body 44 towards valve seat 43 and give the valve closing spring 47 of valve rod 45 and the formation of drive-type valve-opening mechanism 48.
In gas-powered formula valve-opening mechanism 48, time under the state that valve body 44 is crimped on valve seat 43 from compressed air sources supply air pressure (compressed air) such as compression pumps, the valve rod 45 antagonism valve closing elastic acting force of spring 47, the direction (valve opening position) that valve rod 45 is left to valve body 44 from valve seat 43 is mobile, and open and close valve 40 carries out valve opening.
On the other hand, when not supplying air pressure in gas-powered formula valve-opening mechanism 48, the elastic acting force of valve closing spring 47 is had an effect, and valve body 44 is crimped on valve seat 43, and open and close valve 40 carries out valve closing.
In this open and close valve 40, according to whether supplying air pressure (compressed air) from gas apparatus for controlling of supply 54 (with reference to Fig. 7) and carry out the switching in the opening and closing being communicated with stream 41.
In open and close valve 40, be formed in the clack box 42 being configured at the midway being coated with flow path 21 and be communicated with stream 41.Open and close valve 40 is fixedly installed on gun main body 20 in the mode being communicated with stream 41 and being communicated with the painting flow path 21 being positioned at clack box 42 both sides.
Spray gun 10, by switching the opening and closing of the connection stream 41 of open and close valve 40, can carry out opening and closing switching action to painting flow path 21.
In order to the clack box 42 of open and close valve 40 folder is inserted in the midway being coated with flow path 21, is formed with the outer peripheral face depression from rifle body 24 at rifle body 24 (in Fig. 6 rifle phosphor bodies 241) and arrives the clack box storage recess 24c being coated with flow path 21.Clack box 42 is incorporated in clack box storage recess 24c and is located at the midway being coated with flow path 21.
The driven for opening and closing portion 46 of open and close valve 40 is arranged in the mode that the outer peripheral face from gun main body 20 is outstanding.
In addition, specifically, on spray gun 10, open and close valve 40 be installed in gun main body 20 rifle body 24, be more specifically installed on the rifle phosphor bodies 241 of rifle body 24.Clack box 42 is configured in the part being positioned at rifle phosphor bodies 241 being coated with flow path 21.
Open and close valve 40 is for having the unit of the formation being fixed with clack box 42 in driven for opening and closing portion 46.And, by being used in driven for opening and closing portion 46 screw 49 to be screwed on rifle body 24, open and close valve 40 is installed on gun main body 20.
In the outside of the housing 46a in driven for opening and closing portion 46, be provided with the flange part 46b abutted with rifle body 24 in the mode of giving prominence to from housing 46a.
Screw 49 has axle portion 49a and is located at the head 49b of an end of axle portion 49a.The flange part 46b of the through housing 46a of axle portion 49a, be screwed into be formed at rifle body 24 female threaded hole in.The size of head 49b is formed in the mode larger than the diameter of axle portion 49a.Therefore, by axle portion 49a is screwed into female threaded hole, flange part 46b is pressed into rifle body 24, driven for opening and closing portion 46 is fixed on rifle body 24.In addition, head 49b engaging the instrument of rotation process, by carrying out rotation process to screw 49, screw 49 can be made relative to rifle body 24 dismounting.In addition, rightabout rotation process during by being carried out being screwed into relative rifle body 24 by screw 49, can extract open and close valve 40 from rifle body 24, and open and close valve 40 can be made simply to depart from from gun main body 20.Therefore, this spray gun 10 can carry out maintenance or the replacing of open and close valve 40 simply.
In addition, formation that just open and close valve is fixed on gun main body removably the spray gun of embodiment of the present invention can be widely used in by screw threads for fastening etc.
At this, be described comprising the stream being communicated with stream 41 and being coated with flow path 21.
As shown in Figure 6, the painting flow path 21 being located at rifle phosphor bodies 241 has rear stream 21d, vertical stream 21e and front stream 21f.
Rear stream 21d extends along the length direction of rifle body 24, is communicated with coating inlet 21c, and is connected with the connection stream 41 of clack box 42.
Vertical stream 21e extends along the bearing of trend (direction vertical with the length direction of rifle body 24) of valve rod 45, and be communicated with stream 41 and be communicated with, this connection stream 41 is arranged on close position, the position that contacts with valve seat 43 with valve body 44.
Front stream 21f extends along the length direction of rifle body 24, is communicated with vertical stream 21e, and is connected with the painting flow path 21 (being coated with flow path main aperture portion 21a) being located at gas flow path forming member 242.
In such configuration, vertical stream 21e and front stream 21f is utilized to be formed with bend (inverted L-shaped stream).
When open and close valve 40 is valve opening state, supply to coating inlet 21c coating in the wings stream 21d flow, and to flow at the connection stream 41 of clack box 42, and be formed at the Clearance Flow between valve seat 43 and valve body 44.In addition, coating so that by vertical stream 21e and front stream 21f, bending mode flows (inverted L-shaped flowing), while supply to painting flow path main aperture portion 21a.
In addition, as described below, multiple open and close valve 40 is arranged in the mode of giving prominence to radially from gun main body 20.Therefore, according to the quantity of open and close valve 40, gun main body 20 is provided with multiple rear stream 21d, multiple vertical stream 21er and multiple front stream 21f.In addition, multiple vertical stream 21e is formed toward the outer side radially at the center of the inside of gun main body 20 from gun main body 20.
As mentioned above, the multiple painting flow path 21 being formed at gun main body 20 are formed on rifle body 24 in the mode being dispersed in the surrounding supposing the extended line making the central axis of opening concavities 11 extend.That is, in other words, the coating tap in Fig. 4 shown in symbol 21b is formed at around the central authorities of rifle body 24.
Be located at the open and close valve 40 of each painting flow path 21 to suppose that the mode being scattered in many places around the extended line making the central axis of opening concavities 11 extend configures.As shown in Figures 1 and 2, on spray gun 10, be provided with open and close valve 40 in the mode that the multiple painting flow path 21 with gun main body 20 are corresponding respectively, the driven for opening and closing portion 46 of open and close valve 40 gives prominence to radially from gun main body 20.
Fig. 7 represents one of the Finish System 50 using above-mentioned spray gun 10 to form example.
Finish System 50 shown in Fig. 7 possesses above-mentioned spray gun 10, paint feeding device 52, compressed air source 53 (such as compression pump) and gas apparatus for controlling of supply 54.At this, paint feeding device 52 supplies coating to the painting flow path 21 of spray gun 10.Gas apparatus for controlling of supply 54 controls the supply action of compressed air relative to the gas-powered formula valve-opening mechanism 48 of the atomizing gas stream 22 of spray gun 10, figure gas flow path 23 and open and close valve 40.In addition, Finish System 50 comprises the gun bearing apparatus 55 of supporting spray gun 10.
Paint feeding device 52 possesses paint can T1, T2, T3, T4 and pump P1, P2, P3, P4.At this, the quantity of paint can T1, T2, T3, T4 is identical with painting flow path 21 quantity of polychrome covering with paint spray gun 10.Pump P1, P2, P3, P4 are corresponding with paint can T1 ~ T4 to be arranged.Paint feeding device 52 feeds coating via the flexible hose 56 (56a, 56b, 56c, 56d) be connected respectively with pump P1 ~ P4 respectively to the painting flow path 21 of spray gun 10.As shown in Figure 1, flexible pipe 56a ~ 56d is connected with the coating inlet 21c being coated with flow path 21.
As shown in Figure 7, gas apparatus for controlling of supply 54 has multiple internal flow path R1 ~ R8 and open and close valve B1 ~ B8 (below also referred to as gas control open and close valve).At this, flow into the compressed air supplied from compressed air source 53 at multiple internal flow path R1 ~ R8, be provided with open and close valve B1 ~ B8.
One end (first end) of each internal flow path RI ~ R8 is connected with compressed air source 53 via pipe arrangement 51, and the other end (the second end) is connected with flexible flexible pipe 58a ~ 58d, 59a ~ 59d.Flexible pipe 58a ~ 58d, 59a ~ 59d are connected with the atomizing gas stream 22 of spray gun 10, figure gas flow path 23 and gas-powered formula valve-opening mechanism 48 respectively.
On the gun main body 20 of spray gun 10, be formed with gas flow path 29 (with reference to Fig. 7) in the mode corresponding respectively with open and close valve 40.The gas-powered formula valve-opening mechanism 48 of the compressed air guiding open and close valve 40 that gas flow path 29 will be supplied from gas apparatus for controlling of supply 54 by flexible pipe 59 (59a ~ 59d).
Gas flow path 29 is respectively the hole being formed at rifle body 24, the compressed air that the gas access 29a (with reference to Fig. 2) from the rear end face 24b (rear end face of gun main body 20) being opened in rifle body imports is imported the gas-powered formula valve-opening mechanism 48 of open and close valve 40.
As shown in Figure 1, Figure 7 shows, the end of flexible pipe 59 (59a ~ 59d) being positioned at gas apparatus for controlling of supply 54 opposition side is connected with the gas access 29a of gas flow path 29.Thus, flexible pipe 59 (59a ~ 59d) supplies compressed air from gas apparatus for controlling of supply 54 to gas-powered formula valve-opening mechanism 48.Therefore, compressed air can be supplied by the gas-powered formula valve-opening mechanism 48 from gas apparatus for controlling of supply 54 to open and close valve 40 via flexible pipe 59 (59a ~ 59d) and gas flow path 29.
Finish System 50 shown in Fig. 7 adopts the gas apparatus for controlling of supply 54 with two atomizing gas streams, 22, two figure gas flow paths 23 of the spray gun 10 with Fig. 1 ~ Fig. 5 and mode corresponding to four open and close valves 40 with eight internal flow path R1 ~ R8.
Two atomizing gas streams 22 of spray gun 10 are connected with internal flow path R1, R2 of gas apparatus for controlling of supply 54 via flexible pipe 58a, 58b.Two figure gas flow paths 23 of spray gun 10 are connected with internal flow path R3, R4 of gas apparatus for controlling of supply 54 via flexible pipe 58c, 58d.
The gas-powered formula valve-opening mechanism 48 in multiple driven for opening and closing portions 46 that spray gun 10 possesses is connected with the internal flow path R5 ~ R8 of gas apparatus for controlling of supply 54 via flexible pipe 59 (59a ~ 59d).
The compressed air supplied from compressed air source 53 via the splitter 54w being located at gas apparatus for controlling of supply 54 from pipe arrangement 51 internally stream R1 ~ R8 supply respectively.
Flexible pipe 58a ~ the 58d, the 59a ~ 59d that are connected with the atomizing gas stream 22 of spray gun 10, figure gas flow path 23 and gas-powered formula valve-opening mechanism 48 are connected with internal flow path R1 ~ R8 respectively via connecting hose 54a ~ 54h.Connecting hose 54a ~ 54h and multiple internal flow path R1 ~ R8 is located at gas apparatus for controlling of supply 54 respectively accordingly.
In addition, the internal flow path R5 ~ R8 in the internal flow path R1 ~ R8 of gas apparatus for controlling of supply 54 is provided with compressed air discharge open and close valve D.In addition, in the compressed-air actuated direction of supply, be provided with the exhaust flow path v from internal flow path R5 ~ R8 branch than the further downstream side of open and close valve B5 ~ B8.Compressed air discharge open and close valve D carries out opening and closing to exhaust flow path v, switches atmosphere opening and the apolipsis of exhaust flow path v.That is, exhaust flow path v by compressed air discharge by the valve opening of open and close valve D to atmosphere opening.
On gas apparatus for controlling of supply 54, the valve closing interlock of compressed air discharge open and close valve D and gas control open and close valve B5 ~ B8 carries out valve opening, and carries out valve closing with gas control open and close valve B5 ~ B8 valve opening interlock.
In Finish System 50 shown in Fig. 7, with the gas control of the gas apparatus for controlling of supply 54 valve closing interlock with open and close valve B5 ~ B8, by compressed air discharge open and close valve D valve opening.Therefore, compressed-air actuated stream (compressed air supply line) is supplied to atmosphere opening via flexible pipe 59a ~ 59d to gas-powered formula valve-opening mechanism 48 from open and close valve B5 ~ B8.
The open and close valve 40 of spray gun 10 be by compressed air supply line to becoming the state gas-powered formula valve-opening mechanism 48 not being supplied to air pressure during atmosphere opening, so its valve closing.
In addition, in Fig. 7, the diagram omission of the compressed air discharge open and close valve D arranged in multiple (being four in the illustrated example) internal flow path R5 ~ R8 used to supply compressed air to gas-powered formula valve-opening mechanism 48, on the exhaust flow path v of the internal flow path shown in symbol R5 ~ R7.Compressed air discharge open and close valve D is separately positioned on multiple internal flow path R5 ~ R8 from compressed air to gas-powered formula valve-opening mechanism 48 that use to supply.
Gas apparatus for controlling of supply 54 carrys out switching pressurized air by the open and close controlling of gas control open and close valve B1 ~ B8 to be stopped (carrying out compressed-air actuated supply control) the supply of the atomizing gas stream 22 of spray gun 10, figure gas flow path 23 and gas-powered formula valve-opening mechanism 48 or supply.In addition, the on-off action of these gas control open and close valves B1 ~ B8 can separately be controlled.
But gas apparatus for controlling of supply 54 also can have the formation of multiple on-off actions that can carry out multiple gas control open and close valve B1 ~ B8 each other simultaneously.
In addition, gas control open and close valve B1, B2 controls the compressed-air actuated supply action of relative atomizing gas stream 22.In addition, gas control open and close valve B3, B4 controls the compressed-air actuated supply action of relative graphical stream 23.As this gas control open and close valve B1 ~ B4, preferably adopt during valve opening and can be suitable for the open and close valve changing the setting supplying compressed-air actuated flow.
Gas control open and close valve B5 ~ B8 controls opposing gas drive-type valve-opening mechanism 48) compressed-air actuated supply action.As this gas control open and close valve B5 ~ B8, the open and close valve of the switching promptly can being carried out the ON/OFF (supply or supply stop) of compressed-air actuated supply action by the opening and closing of valve preferably can be adopted.
As this gas control open and close valve B5 ~ B8, as long as have the valve of the function of the ON/OFF (supply or supply stop) of the supply action of switching pressurized air, the valve of the function of the setting of changing supply compressed-air actuated flow when not there is valve opening also can be adopted.
In each open and close valve 40 of spray gun 10, when gas control is by open and close valve B5 ~ B8 valve opening, by supplying compressed air via flexible pipe 59 (59a ~ 59d) from gas apparatus for controlling of supply 54, the gas-powered formula valve-opening mechanism 48 of driven opening/closing drive division 46, by open and close valve 40 valve opening.
Gas apparatus for controlling of supply 54 air flow circuit had both to spray gun supply compressed-air actuated atomization compressed air feedway and control spray gun open and close valve action and switch the controller for opening and closing of the opening and closing being coated with flow path.
Lance supporting device 55 has the rifle installing component 55a of fixing spray gun 10.The shape of rifle installing component 55a is not particularly limited.
As shown in Figure 1, spray gun 10 has the fixing teat 26 arranged in the mode of giving prominence to from the rearward end periphery of gun main body 20.By fixing teat 26 is fixed on rifle installing component 55a, spray gun 10 can be installed on gun bearing apparatus 55.
Fixing teat 26 shown in Fig. 1 is formed the installing component patchhole 26a that can insert the rifle installing component 55a being formed as bar-shaped.
In addition, fixing screwed hole 26b is offered with the outside of teat 26 at this.Screwed hole 26b is formed in the mode extended towards the outside of fixing teat 26 from the inner peripheral surface of installing component patchhole 26a.
By utilizing the hold-down screw 26c being screwed into screwed hole 26b to fix the rifle installing component 55a being inserted into installing component patchhole 26a, spray gun 10 can be arranged on gun bearing apparatus 55.
In addition, as shown in Figure 1 and Figure 2, on spray gun 10, the hole portion 27 formed in the mode caved in from rear end face 24b is provided with at the central portion of the rear end face 24b of rifle body 24.Utilize this hole portion 27 also spray gun 10 can be fixed on rifle installing component 55a.
Gun bearing apparatus 55 is such as having the multiaxis supporting arrangement of rifle installing component 55a in the front end of Multi-shaft mechanical arm.The invention is not restricted to gun bearing apparatus 55 for multiaxis supporting arrangement.As gun bearing apparatus 55, as long as the device with rifle installing component 55a is just not particularly limited, also can be such as the position spray gun 10 being fixed on rifle installing component 55a being configured in regulation, the coating after atomization to be supported the device of spray gun 10 to the mode that prescribed direction is sprayed.
Spray gun 10 has the open and close valve 40 being provided with on gun main body 20 and controlling to supply the action of coating to nozzle 25.Therefore, compare situation about to be located at by the valve of supply action controlling coating outside the system of spray gun, spray gun 10 can make from the valve (open and close valve 40) of the supply action controlling coating extremely short to the distance of coating tap 21b.
Therefore, this spray gun 10 can prevent simply and reliably after stopping coating supply (apolipsis of the painting flow path 21 that open and close valve 40 carries out), and the front end of rifle is contaminated situation because of the coating of discharging from coating tap 21b.
The Finish System 50 using this spray gun 10 to form can prevent from not carrying out adjustment that coating supply that the supply control of Compressed Gas one of (atomizing gas and figure gas at least) and valve carry out controls and stop the situation of front end of coating supply after stain rifle.
In addition, in this Finish System 50, can valve (open and close valve 40) to the Distance Shortened of coating tap 21b from the supply action controlling coating be obtained extremely short.Therefore, open and close valve 40, when apolipsis is coated with flow path 21, can not be subject to the flow of coating or the impact of physical characteristic (viscosity etc.), can stop the action of discharging coating from coating tap 21b at short notice.
In addition, the respective on-off action of open and close valve 40 (on-off action of the gas control open and close valve B5 ~ B8 of the gas apparatus for controlling of supply 54 of the Finish System 50 namely shown in Fig. 7) can be carried out simultaneously, and merely can control the on-off action of open and close valve 40.
Secondly, other embodiment of spray gun of the present invention is described.
As spray gun of the present invention, such as, can adopt the spray gun with that formation shown in Fig. 8 and Fig. 9.In formation shown in Fig. 8, on the length direction being coated with flow path 21, be configured with open and close valve 40 in the rearward end (position close to coating inlet 21c) being coated with flow path 21.In formation shown in Fig. 9, open and close valve 40 is assembled on gun main body 20 in the mode be configured on rear side of gun main body 20.In this formation, by flexible pipe 56, coating is supplied to gun main body 20, and coating is imported into painting flow path 21 via open and close valve 40.
But, in this above-mentioned spray gun 10 and Finish System 50, in order to reliably prevent will discharging the situation of coating after being coated with flow path 21 apolipsis from coating tap 21b at open and close valve 40, the distance shortened as much as possible from the valve (open and close valve 40) of the supply action controlling coating to coating tap 21b is effective.
In this point, spray gun 10 shown in Fig. 1 has the formation being configured with open and close valve 40 at the central portion of the length direction being coated with flow path 21, compare the spray gun shown in Fig. 8, Fig. 9, the distance controlled from the valve (open and close valve 40) of the supply action of coating to coating tap 21b can be shortened.Therefore, the spray gun 10 shown in Fig. 1 has for obtaining preventing open and close valve 40 from discharging the favourable structure of the effect of coating by after being coated with flow path 21 apolipsis from coating tap 21b.
In addition, on gun main body 20, open and close valve 40 also can be configured at the position offset from central portion to front side (direction towards coating tap 21b) at the length direction being coated with flow path 21.
In addition, the spray gun 10 shown in Fig. 1 has in the formation many places around the extended line supposing to make the central axis of opening concavities 11 extend being distributed open and close valve 40.In addition, open and close valve 40 is located on each of multiple painting flow path 21 of gun main body 20.This formation contributes to the shortening of the distance from open and close valve 40 to coating tap 21b effectively.
In the formation of the open and close valve of spray gun of the present invention, such as, also can adopt the fore-and-aft direction plural open and close valve being arranged in spray gun, the position of plural open and close valve formation different from each other is set at the fore-and-aft direction of spray gun.
To this, the spray gun 10 shown in Fig. 1, Fig. 2 has multiple driven for opening and closing portion 46 is configured with open and close valve 40 formation in the mode of giving prominence to radially from gun main body 20.By adopting this formation, realize the central portion all open and close valves 40 being configured in the central portion of the fore-and-aft direction of gun main body 20 and the length direction of painting flow path 21.Therefore, the distance from open and close valve 40 to coating tap 21b, for all painting flow path 21 being provided with open and close valve 40, can suppress very short by spray gun 10.
In addition, technical scope of the present invention is not limited to above-mentioned embodiment, can increase various change without departing from the spirit and scope of the present invention.
As open and close valve 40, as long as having by opening and closing the device (valve, mechanism) of the formation of flow path can be coated with the opening and closing being communicated with stream of coating fluid communication, be then not limited to above-mentioned formation.
Open and close valve 40 is that valve rod drives shape open and close valve.This valve rod drives shape open and close valve to possess clack box, valve body, valve rod, valve seat and driven for opening and closing portion (valve rod drive division).At this, on clack box, through setting and coating fluid communication is communicated with stream.Valve body is installed in valve rod.Driven for opening and closing portion moves by making valve rod or rotates, and valve body is crimped on the valve seat be located in clack box or valve body is left from valve seat.
As the structure of this open and close valve, such as, also can adopt, on the valve being located at the family of power and influence, ball valve, butterfly valve etc., valve rod is installed, and be provided with the formation in driven for opening and closing portion valve rod being moved or rotate.
In addition, as open and close valve, be not limited to the valve of other type of drive, as opening and closing drive source, also can adopt the valve with the formation possessing motor, the magnetic valve etc. being carried out driven for opening and closing by the on-off to the energising of electromagnet.
As spray gun, the spray gun of the formation had as shown in Figure 10 can be adopted.In the formation shown in Figure 10, be coated with flow path 21 (coating inlet specifically for being connected with painting flow path 21) and be connected with flexible pipe 56 via the open and close valve 40 being located at rifle body 24 periphery.Coating is supplied to flexible pipe 56 from paint feeding device.By the opening and closing of open and close valve 40, can switch to and supply the action of coating to being coated with flow path 21 and stopping the action of supply.
In addition, the quantity of the painting flow path of spray gun is not limited to four, also can be multiple beyond one or four.The formation that gun main body is provided with the open and close valve 40 of opening and closing painting flow path also goes for using and is only formed with the monochrome covering with paint spray gun that is coated with the gun main body of flow path.
About monochrome covering with paint spray gun, the structure be removably fixed on by open and close valve 40 on gun main body also can be adopted.In addition, the installation site of the open and close valve 40 of the fore-and-aft direction of the gun main body of monochromatic covering with paint spray gun goes for the installation site of the open and close valve 40 of polychrome covering with paint spray gun.
In Fig. 1 etc., illustrate the formation being formed with the painting flow path 21 with bend in gun main body 20, but as gun main body 20, also can adopt to be coated with the structure that flow path 21 is formed as the crow flies along the mode of the fore-and-aft direction of gun main body 20.
When have along the fore-and-aft direction of gun main body 20 be formed as the crow flies be coated with the formation of flow path 21, adopt the two ends being formed at the connection stream 41 of the clack box 42 of open and close valve 40 to be positioned at and be coated with the formation on the same straight line of flow path 21.
Claims (6)
1. a spray gun, is characterized in that, possesses:
Main body, it has multiple painting flow path, is located at the coating tap of one end of described painting flow path, supplies compressed-air actuated air flow circuit, the atomizing gas jet sprayed by described compressed air of the coating of discharging from described coating tap atomization, is formed with a spray nozzle part of described coating tap and described atomizing gas jet, is located at the coating inlet of the opposite location of described coating tap;
The open and close valve of gas-powered formula, it is located at described main body, carries out opening and closing to described painting flow path,
Described painting flow path is formed in the mode extended towards described coating tap from described coating inlet,
The gas-powered formula valve-opening mechanism offered to described open and close valve at the rear end face of described main body supplies compressed-air actuated gas access.
2. spray gun as claimed in claim 1, is characterized in that,
Described open and close valve be located at the length direction of described painting flow path central portion or than the central portion of the length direction of described painting flow path closer to the position of front side.
3. spray gun as claimed in claim 1 or 2, is characterized in that,
There are the multiple open and close valves arranged in the mode corresponding with the multiple described painting flow path being formed at described main body,
Described main body has the opening concavities making described coating tap and described air flow circuit opening,
Described multiple open and close valve is distributed is supposing the multiple positions around the extended line that the central axis of described opening concavities is extended.
4. spray gun as claimed in claim 1 or 2, is characterized in that having:
Gun main body, its described spray nozzle part having leading section and offer described coating tap in described leading section, forms described main body, is formed with described painting flow path and described air flow circuit;
The lid of cone tubular, it is arranged on described leading section, receives described spray nozzle part,
Described coating tap and described air flow circuit is offered in the opening concavities being opened in described lid,
Described open and close valve is arranged on described gun main body.
5. spray gun as claimed in claim 1 or 2, is characterized in that possessing:
Figure gas ejection ports, it is located at described main body, jet graphics gas;
Figure gas flow path, it is located at described main body, has described figure gas ejection ports.
6. a Finish System, is characterized in that, possesses:
Spray gun according to any one of Claims 1 to 5;
To the paint feeding device of the described painting flow path supply coating of described spray gun;
Described air flow circuit to described spray gun supplies compressed-air actuated atomization compressed air feedway;
Control the action of the open and close valve of described spray gun and switch the controller for opening and closing of the opening and closing of described painting flow path.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-234850 | 2010-10-19 | ||
| JP2010234850A JP5654834B2 (en) | 2010-10-19 | 2010-10-19 | Spray gun, painting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102451801A CN102451801A (en) | 2012-05-16 |
| CN102451801B true CN102451801B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110314116.9A Expired - Fee Related CN102451801B (en) | 2010-10-19 | 2011-10-17 | Spray gun and coating system |
| CN2011203933303U Expired - Fee Related CN202290382U (en) | 2010-10-19 | 2011-10-17 | Spray gun and coating system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203933303U Expired - Fee Related CN202290382U (en) | 2010-10-19 | 2011-10-17 | Spray gun and coating system |
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| Country | Link |
|---|---|
| JP (1) | JP5654834B2 (en) |
| KR (1) | KR101276589B1 (en) |
| CN (2) | CN102451801B (en) |
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| JP5654834B2 (en) * | 2010-10-19 | 2015-01-14 | 関西ペイント株式会社 | Spray gun, painting system |
| JP2014100644A (en) * | 2012-11-19 | 2014-06-05 | Anest Iwata Corp | Spray gun |
| JP6270896B2 (en) * | 2016-03-29 | 2018-01-31 | 本田技研工業株式会社 | COATING NOZZLE, COATING DEVICE, AND COATING METHOD USING THEM |
| JP7187275B2 (en) * | 2018-11-13 | 2022-12-12 | タクボエンジニアリング株式会社 | Spray gun equipment for painting |
| WO2022155686A1 (en) * | 2021-01-15 | 2022-07-21 | Schmitz Tanner M J | Pneumatic rotary actuated spray gun |
| CN114042553B (en) * | 2021-11-30 | 2023-01-17 | 新疆华电达坂城新能源有限公司 | Spraying treatment device for fireproof coating on surface of electric wire cable bridge |
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| JP3809372B2 (en) * | 2001-12-26 | 2006-08-16 | 旭サナック株式会社 | Portable multi-color coating device and hand spray gun with multiple valves used for it |
| JP4160886B2 (en) * | 2003-09-10 | 2008-10-08 | 友美工業株式会社 | Method for forming a design coating film |
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2010
- 2010-10-19 JP JP2010234850A patent/JP5654834B2/en active Active
-
2011
- 2011-10-04 KR KR1020110100732A patent/KR101276589B1/en not_active IP Right Cessation
- 2011-10-17 CN CN201110314116.9A patent/CN102451801B/en not_active Expired - Fee Related
- 2011-10-17 CN CN2011203933303U patent/CN202290382U/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610852A (en) * | 2007-02-08 | 2009-12-23 | Abb株式会社 | Air atomization coating device |
| CN202290382U (en) * | 2010-10-19 | 2012-07-04 | 关西涂料株式会社 | Spray gun and coating system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120040655A (en) | 2012-04-27 |
| KR101276589B1 (en) | 2013-06-19 |
| CN202290382U (en) | 2012-07-04 |
| JP2012086152A (en) | 2012-05-10 |
| JP5654834B2 (en) | 2015-01-14 |
| CN102451801A (en) | 2012-05-16 |
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