CN113275145A

CN113275145A - Spray gun and paint spraying equipment with same

Info

Publication number: CN113275145A
Application number: CN202110835511.5A
Authority: CN
Inventors: 戴建林
Original assignee: Nantong Rixu Heavy Industry Technology Co ltd
Current assignee: Nantong Rixu Heavy Industry Technology Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-08-20
Anticipated expiration: 2041-07-23
Also published as: CN113275145B

Abstract

The application discloses spray gun and have its paint spraying equipment, the spray gun includes: a nozzle; the air cap is arranged on the nozzle and comprises a cap body, and the cap body is provided with a plurality of auxiliary atomizing holes; the rotating ring is arranged on one side of the cap body and is provided with a plurality of air outlets, and the rotating ring is rotatably arranged relative to the cap body so as to change the position states between the air outlets and the auxiliary atomizing holes and adjust the air outlet states of the auxiliary atomizing holes; at least two gas injection portions, each gas injection portion all is formed with the range limiting air hole that is used for restricting spraying range and the range limiting air hole extends to the cap body, and the gas injection portion is along being close to or keeping away from the movable setting of direction of cap body in order to move between centre gripping position and release position. The application provides a spray gun and have its paint spraying equipment, not only can improve the atomizing homogeneity, can also not link the range of the limit that changes air-jet portion simultaneously when realizing the function of rotatory ring state of regulation, improve the user experience of spray gun.

Description

Spray gun and paint spraying equipment with same

Technical Field

The invention relates to the technical field of paint spraying, in particular to the technical field of spraying equipment, and particularly relates to a spray gun and paint spraying equipment with the spray gun.

Background

The paint spraying equipment is used for spraying paint on a surface to be sprayed, and is widely applied to industries such as buildings, ships, home decoration and the like. The paint spraying equipment comprises a spray gun, wherein the spray gun comprises a nozzle and an air cap, and the air cap is detachably arranged on the nozzle. The air cap is equipped with supplementary atomizing hole, and injects gas in order to atomize once more to the paint of nozzle spun through supplementary atomizing hole to the spray painting region of nozzle, improves the atomization effect of spray gun.

However, the re-atomization range of the atomization holes is limited by the position of the atomization holes, so that the spray gun has the problem of poor local atomization uniformity when in use, and the paint spraying effect is affected.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a spray gun and a paint spraying apparatus having the same.

In a first aspect, the present application provides a spray gun comprising:

a nozzle;

the air cap is arranged on the nozzle and comprises a cap body, and the cap body is provided with a plurality of auxiliary atomizing holes;

the rotating ring is arranged on one side of the cap body and is provided with a plurality of air outlets, and the rotating ring is rotatably arranged relative to the cap body so as to change the position states between the air outlets and the auxiliary atomizing holes and adjust the air outlet states of the auxiliary atomizing holes;

at least two jet-propelled portions, at least two jet-propelled portions set up in the cap body, at least two jet-propelled portions and rotatory ring lie in same one side of the cap body, every jet-propelled portion all is formed with the amplitude limiting gas pocket that is used for restricting the spraying range, and the amplitude limiting gas pocket extends to the cap body, wherein, jet-propelled portion has the clamping face, jet-propelled portion is along being close to or keeping away from the movable setting of direction of cap body in order to remove between clamping position and release position, when clamping position, the clamping face is fixed in the cap body with rotatory ring centre gripping, when release position, separation is so that rotatory ring is rotatable between clamping face and the rotatory ring.

Furthermore, a plurality of ventholes include a plurality of first ventholes, and a plurality of first ventholes and a plurality of auxiliary atomization holes one-to-one set up, and the first venthole that corresponds the setting is the same with auxiliary atomization hole shape.

Furthermore, the plurality of air outlets further comprise a plurality of second air outlets, and the shape of the plurality of second air outlets is different from that of the plurality of first air outlets.

Furthermore, the limiting air hole comprises a first air hole section positioned in the air injection part and a second air hole section positioned in the cap body, one of the air injection part and the cap body is provided with a threaded column, the other one of the air injection part and the cap body is provided with a threaded hole matched with the threaded column in a threaded manner, part of the first air hole section is positioned in the threaded column or the threaded hole arranged in the air injection part, and part of the second air hole section is positioned in the threaded column or the threaded hole arranged in the cap body;

the rotating ring is provided with avoidance through holes which are in one-to-one correspondence with the threaded columns, and the avoidance through holes are used for avoiding the corresponding threaded columns.

Further, first gas vent section includes first gas outlet, and the screw thread post cover is equipped with the roll adjustment piece, and the roll adjustment piece is located the one side that the cap body was kept away from to the swivel ring, and the distance between first gas outlet and the cap body is adjusted in the retractable setting to the roll adjustment piece.

Further, the distance adjusting piece comprises at least two sleeves, and every two adjacent sleeves are in threaded connection.

Furthermore, the rotating ring is provided with a first position, and when the rotating ring is arranged at the first position, the plurality of first air outlet holes and the plurality of auxiliary atomizing holes are arranged in one-to-one alignment;

the rotating ring is provided with a first blocking part, the cap body is provided with a second blocking part, and when the cap body is at the first position, the first blocking part is matched with the second blocking part to block the rotating ring from rotating along the set direction.

Furthermore, the first blocking part is a blocking protrusion arranged on the outer side wall of the rotating ring, the second blocking part is a blocking elastic sheet, and the elastic sheet is deformable along the set direction.

In a second aspect, the present application also provides a paint spraying apparatus comprising a spray gun.

The application provides a spray gun and paint spraying equipment with the same, through being provided with rotatory ring and two at least jet-propelled portions in one side of the cap body, rotatory ring is equipped with a plurality of ventholes, every jet-propelled portion all is formed with the limit air pocket that is used for restricting the spraying range and limit air pocket extends to the cap body, jet-propelled portion is along being close to or the movably setting of direction of keeping away from the cap body so that rotatory ring is in by the clamping state or rotatable state, and can adjust the air-out state of a plurality of auxiliary atomization holes when rotatory ring is at rotatable state, so can change the state of rotatory ring through removing jet-propelled portion earlier and realize adjusting from auxiliary atomization hole output gaseous quantity and air-out direction according to the state change of rotatory ring again, and then change the range of atomizing once more of auxiliary atomization hole, improve the atomizing uniformity, promote paint spraying effect, can also can not change the limit range of jet-propelled portion in linkage when realizing the function of adjusting rotatory ring state simultaneously, the user experience of the spray gun is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of a spray gun provided in an embodiment of the present application;

FIG. 2 is a schematic view of the combination of the air injection part, the rotating ring and the cap according to the embodiment of the present disclosure;

FIG. 3 is a schematic structural view of the rotating ring in the first position according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1, an embodiment of the present application provides a spray gun, including:

a nozzle 100;

the air cap is arranged on the nozzle 100 and comprises a cap body 210, and the cap body 210 is provided with a plurality of auxiliary atomizing holes;

rotatory ring 300, rotatory ring 300 set up in one side of cap body 210, and rotatory ring 300 is equipped with a plurality of ventholes, and rotatory setting of rotatory relative cap body 210 is in order to change the position state between a plurality of ventholes and a plurality of supplementary atomizing holes to adjust the air-out state in a plurality of supplementary atomizing holes.

In this embodiment, the spray gun is used to spray paint onto a surface to be sprayed. The spray gun includes a spray nozzle 100 and an air cap, the air cap and the spray nozzle 100 being threaded, the spray nozzle 100 being for spraying atomized paint. The air cap has a cap body 210, a mounting through hole 201 is formed in the middle of the cap body 210, the mounting through hole 201 penetrates in the thickness direction of the cap body 210, and the head of the nozzle 100 is mounted to the mounting through hole 201 and extends out of the mounting through hole 201. The cap body 210 is further provided with a plurality of auxiliary atomization holes for injecting gas into the atomized paint sprayed from the nozzle 100 to atomize the paint again. The air cap has a limiter air hole for injecting air into the atomized paint sprayed from the nozzle 100 to limit the width of the paint sprayed from the nozzle 100. It should be understood that the limiting air hole and the auxiliary atomization hole are both obliquely arranged relative to the axial direction of the mounting through hole 201, and the air injected from the limiting air hole is positioned outside the air injected from the auxiliary atomization hole.

One side of the cap body 210 is provided with a rotating ring 300, the inner hole of the rotating ring 300 is coaxial with the installation through hole 201, and the diameter of the inner hole of the rotating ring 300 is larger than or equal to that of the installation through hole 201. The rotating ring 300 is provided with a plurality of air outlets, and the rotating ring is rotatably arranged relative to the cap body 210 to change the position states between the plurality of air outlets and the plurality of auxiliary atomization holes, so as to adjust the air outlet states of the plurality of auxiliary atomization holes. The position states between the plurality of air outlets and the plurality of auxiliary atomizing holes comprise positions of the plurality of air outlets when the plurality of auxiliary atomizing holes are completely exposed, positions of the plurality of air outlets when the plurality of auxiliary atomizing holes are covered by the plurality of air outlets, and the like. The air outlet state of the auxiliary atomizing holes comprises the gas quantity and the air outlet direction of the gas output from the auxiliary atomizing holes.

In this embodiment, through being provided with rotatory ring 300 in one side of the cap body 210, rotatory ring 300 is equipped with a plurality of ventholes, and rotatory ring is rotatory to be set up the air-out state in order to adjust a plurality of supplementary atomizing holes relative to cap body 210 for rotatory ring 300 of staff alright adjust from supplementary atomizing hole export gaseous quantity of gas and air-out direction, can change the range of atomizing once more in supplementary atomizing hole, improves the atomizing homogeneity, promotes paint spraying effect.

In some embodiments of the present application, the plurality of air outlets include a plurality of first air outlets 301, the plurality of first air outlets 301 and the plurality of auxiliary atomization holes are disposed in a one-to-one correspondence, and the shape of the corresponding first air outlets 301 is the same as that of the auxiliary atomization holes, so that the rotating ring 300 can have a position where the plurality of auxiliary atomization holes are completely exposed.

In some embodiments of the present application, the plurality of air outlets further include a plurality of second air outlets 302, and the shape of the plurality of second air outlets 302 is different from that of the plurality of first air outlets 301, so that the type of the position state formed between the plurality of air outlets and the plurality of auxiliary atomization holes can be increased, and the change range of the re-atomization range formed by the plurality of auxiliary atomization holes can be increased.

Wherein, a plurality of second ventholes 302 and a plurality of first ventholes 301 can be mixed, and a plurality of second ventholes 302 and a plurality of first ventholes 301 can also be arranged along the circumferential interval of the rotating ring 300.

Referring to fig. 2, in some embodiments of the present application, the air cap further includes at least two air injection portions 220 disposed on the cap body 210, the at least two air injection portions 220 and the rotating ring 300 are located on the same side of the cap body 210, each air injection portion 220 is formed with a limiting air hole for limiting a spraying amplitude, and the limiting air hole extends to the cap body 210;

the air injection portion 220 has a clamping surface, and the air injection portion 220 is movably disposed in a direction approaching to or departing from the cap body 210 so as to move between a clamping position where the clamping surface clamps and fixes the rotating ring 300 to the cap body 210 and a releasing position where the clamping surface is separated from the rotating ring 300 so that the rotating ring 300 can rotate.

In this embodiment, the air cap further includes at least two air injection portions 220, and the at least two air injection portions 220 and the rotating ring 300 are located on the same side of the cap body 210. At least two air injection parts 220 are respectively disposed at both sides of the mounting through-hole 201. Each of the air injection parts 220 is formed with a limiter air hole for limiting a spraying amplitude, and the limiter air hole extends to the cap body 210. The air injection part 220 has a clamping surface, and the air injection part 220 is movably disposed in a direction approaching or departing from the cap body 210 to move between a clamping position and a releasing position, specifically: when the air injection part 220 moves from the release position to the clamping position, the air injection part 220 moves in the direction close to the cap body 210, the clamping surface presses the rotating ring 300 to clamp and fix the rotating ring 300 between the clamping surface and the cap body 210, namely, the air injection part 220 is clamped when located at the clamping position; when the air injection portion 220 moves from the clamping position to the releasing position, the air injection portion 220 moves in a direction away from the cap body 210, the air injection portion 220 removes the pressing force on the rotating ring 300, and at this time, the rotating ring 300 is in a rotatable state, that is, the air injection portion 220 is in a rotatable state when located at the releasing position.

In the present embodiment, the movable air injection part 220 is used to switch the rotating ring 300 between the clamped state and the rotatable state, which is simple in structure and easy to operate. Simultaneously, because after adjusting the air-out state in a plurality of supplementary atomizing holes at every turn, rotatory ring 300 all can be switched to by the clamping state by rotatable state, so when realizing the function of adjusting rotatory ring 300 state, the position of jet-propelled portion 220 does not change, can not link the amplitude limiting range that changes jet-propelled portion 220, improves the user experience of spray gun.

In some embodiments of the present application, the limiting air hole includes a first air hole section 221 located at the air injection part 220 and a second air hole section located at the cap body 210, one of the air injection part 220 and the cap body 210 is provided with a threaded column 230 and the other is provided with a threaded hole 101 in threaded fit with the threaded column 230, a portion of the first air hole section 221 is located inside the threaded column 230 or the threaded hole 101 located at the air injection part 220, and a portion of the second air hole section is located inside the threaded column 230 or the threaded hole 101 located at the cap body 210;

the rotating ring 300 is provided with avoidance through holes 303 which are arranged in one-to-one correspondence with the threaded posts 230, and the avoidance through holes 303 are used for avoiding the corresponding threaded posts 230.

In the present embodiment, the air injection part 220 and the cap body 210 are screwed to realize the detachability between the air injection part 220 and the cap body 210, so as to facilitate the replacement of the rotating ring 300, specifically: one of the air spouting portion 220 and the cap body 210 is provided with a screw post 230 and the other is provided with a screw hole 101 to be screw-fitted with the screw post 230. Based on the structure shown in the drawing, the air injection part 220 is provided with a threaded post 230, the cap body 210 is provided with a threaded hole 101, and the threaded post 230 passes through the avoiding through hole 303 of the rotating ring 300 and is screwed in the threaded hole 101. When the rotating ring 300 needs to be fixed, the air injection part 220 is rotated to move towards the cap body 210, so that the rotating ring 300 is clamped; when the rotating ring 300 needs to be rotated, the rotating air injection part 220 moves away from the cap body 210, and the clamping surface is separated from the rotating ring 300, so that the rotating ring 300 is in a rotatable state.

The limiting air hole comprises a first air hole section 221 positioned in the air injection part 220 and a second air hole section positioned in the cap body 210, wherein part of the first air hole section 221 is positioned inside the threaded column 230 or the threaded hole 101 arranged in the air injection part 220, and part of the second air hole section is positioned inside the threaded column 230 or the threaded hole 101 arranged in the cap body 210, so that when the air injection part 220 and the cap body 210 are screwed, a conduction state is formed between the first air hole section 221 and the second air hole section.

The avoiding through hole 303 is a circular ring segment and is coaxially arranged with the rotating ring 300, so that the rotating ring 300 can precisely rotate along the axial direction of the rotating ring 300 under the limitation of the threaded column 230.

In some embodiments of the present application, the first air hole section 221 includes a first air outlet, the threaded post 230 is sleeved with a distance adjusting member 400, the distance adjusting member 400 is located at a side of the rotating ring 300 away from the cap body 210, and the distance adjusting member 400 is telescopically arranged to adjust a distance between the first air outlet and the cap body 210.

In this embodiment, the limiting air hole injects air into the paint sprayed from the nozzle 100 through the first air outlet. The threaded post 230 is sleeved with a distance adjusting member 400, and the distance adjusting member 400 is located between the rotating ring 300 and the clamping surface. The distance between the first air outlet and the cap body 210 is adjusted by the distance adjusting member 400 being telescopically arranged, so that the inclination angle between the first air outlet of the amplitude limiting air hole and the axial direction of the installation through hole 201 is adjusted, and the adjustment of the width of the paint sprayed by the nozzle 100 is facilitated.

In some embodiments of the present application, the distance adjusting member 400 includes at least two sleeves 410, and two adjacent sleeves 410 are threadedly coupled to each other.

In this embodiment, one of the two adjacent sleeves 410 is provided with an external thread section and the other one is provided with an internal thread section, and the external thread section and the internal thread section have certain lengths so as to meet the distance adjustment requirement of the distance adjustment member 400.

The distance adjusting member 400 provided in this embodiment has a simple structure and is easy to operate, and the distance between the first air outlet and the cap body 210 can be adjusted only by rotating the sleeve 410.

Referring to fig. 3, in some embodiments of the present application, the rotating ring 300 has a first position in which the plurality of first outlet holes 301 are aligned with the plurality of auxiliary atomizing holes;

the rotating ring 300 is provided with a first blocking portion, and the cap body 210 is provided with a second blocking portion, wherein in the first position, the first blocking portion and the second blocking portion cooperate to block the rotating ring 300 from rotating in the set direction.

In the present embodiment, the first and second stoppers can indicate to the worker when the rotary ring 300 reaches the first position. Specifically, the method comprises the following steps: when the rotating ring 300 rotates to the first position, the first blocking portion is matched with the second blocking portion, the difficulty of continuing to rotate the rotating ring 300 is increased, and at the moment, a worker can be reminded of reaching the first position, so that the user can be helped to rotate the rotating ring 300 to the first position quickly and accurately.

In some embodiments of the present application, the first blocking portion is a blocking protrusion 310, the blocking protrusion 310 is disposed on an outer sidewall of the rotating ring 300, and the second blocking portion is a blocking elastic piece 211, and the elastic piece is deformable along a set direction.

In this embodiment, the first blocking portion is a blocking protrusion 310, the second blocking portion is a blocking elastic piece 211, and the blocking elastic piece 211 is located on the outer circumference of the rotating ring 300. The blocking protrusion 310 rotates with the rotating ring 300 and is in stop engagement with the blocking spring 211 in the first position. Because the second blocking portion is the blocking elastic sheet 211, the blocking elastic sheet 211 has a certain blocking effect, but is deformable along the set direction, and further, a large block cannot be formed on the continuous rotation of the rotating ring 300 along the set direction.

The application also provides paint spraying equipment comprising the spray gun in the embodiment.

It will be understood that any orientation or positional relationship indicated above with respect to the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., is based on the orientation or positional relationship shown in the drawings and is for convenience in describing and simplifying the invention, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting of the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A spray gun, comprising:

a nozzle;

the rotating ring is arranged on one side of the cap body and provided with a plurality of air outlets, and the rotating ring is rotatably arranged relative to the cap body so as to change the position states between the air outlets and the auxiliary atomizing holes and adjust the air outlet states of the auxiliary atomizing holes;

the at least two air injection parts are arranged on the cap body, the at least two air injection parts and the rotating ring are positioned on the same side of the cap body, each air injection part is provided with an amplitude limiting air hole for limiting the spraying amplitude, the amplitude limiting air holes extend to the cap body, the air injection parts are provided with clamping surfaces, the air injection parts can be movably arranged along the direction close to or far away from the cap body so as to move between a clamping position and a releasing position, the clamping surfaces clamp and fix the rotating ring on the cap body when the clamping position is adopted, and the clamping surfaces are separated from the rotating ring when the releasing position is adopted so as to enable the rotating ring to rotate.

2. The spray gun of claim 1, wherein the plurality of air outlets comprise a plurality of first air outlets, the plurality of first air outlets are arranged in one-to-one correspondence with the plurality of auxiliary atomization holes, and the corresponding first air outlets and the auxiliary atomization holes are identical in shape.

3. The spray gun of claim 2 wherein said plurality of gas outlets further comprises a plurality of second gas outlets, said plurality of second gas outlets being shaped differently than said plurality of first gas outlets.

4. The spray gun of claim 1 wherein said limiter vent comprises a first vent section located in said gas injection portion and a second vent section located in said cap body, one of said gas injection portion and said cap body being provided with a threaded post and the other being provided with a threaded hole threadedly engaged with said threaded post, a portion of said first vent section being located inside said threaded post or threaded hole provided in said gas injection portion, and a portion of said second vent section being located inside said threaded post or threaded hole provided in said cap body;

the rotating ring is provided with avoidance through holes which are arranged in one-to-one correspondence with the threaded columns, and the avoidance through holes are used for avoiding the corresponding threaded columns.

5. The spray gun of claim 3 wherein said first air vent section includes a first air outlet, said threaded stud housing being provided with a distance adjuster on a side of said swivel ring remote from said cap, said distance adjuster being telescopically arranged to adjust a distance between said first air outlet and said cap.

6. The lance defined in claim 5 wherein the distance member comprises at least two sleeves with a threaded connection between adjacent sleeves.

7. The spray gun of claim 2 wherein said rotatable ring has a first position in which said first plurality of outlet apertures are aligned with said plurality of auxiliary atomizing apertures;

the rotating ring is provided with a first blocking portion, the cap body is provided with a second blocking portion, and the first blocking portion and the second blocking portion are matched to block the rotating ring from rotating in a set direction when the cap body is at the first position.

8. The spray gun of claim 7, wherein the first blocking portion is a blocking protrusion disposed on an outer sidewall of the rotating ring, the second blocking portion is a blocking spring, and the spring is deformable in the set direction.

9. Paint spraying apparatus comprising a spray gun according to any one of claims 1 to 8.