CN212441687U

CN212441687U - Pneumatic cold glue spray gun

Info

Publication number: CN212441687U
Application number: CN202021811093.3U
Authority: CN
Inventors: 李娜; 李新亮; 李志勇
Original assignee: Yuxi Xinte Technology Co Ltd
Current assignee: Yuxi Xinte Technology Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-02-02
Anticipated expiration: 2030-08-26

Abstract

The utility model discloses a pneumatic cold glue spray gun, which is characterized in that the pneumatic cold glue spray gun comprises a gun body and a solenoid valve assembly connected with the rear end of the bottom of the gun body, wherein the gun body is U-shaped, a needle rod piston assembly is arranged inside the gun body in a penetrating way, a needle rod guide pipe is also arranged at the gap in the middle of the gun body, and the needle rod guide pipe is sleeved on a needle rod; the front end of the needle rod piston assembly is wrapped by the spray head assembly, and the rear end of the needle rod piston assembly is connected with the needle rod adjusting assembly; the front end of the bottom of the gun body is provided with a material joint which is communicated with a feeding pipeline in the gun body; the lower end of the tail part of the gun body is provided with a needle rod control joint and an air path joint which are arranged side by side, the needle rod control joint is used for supplying air to control a needle rod piston assembly to move in the gun body, and the air path joint is used for supplying air to break up materials; the tail part of the electromagnetic valve component is also provided with an electromagnetic valve socket. The utility model intelligently controls the spray gun to spray and spray materials, and realizes uniform and quantitative spray and spraying of the materials; possess dual clean function simultaneously, avoid the shower nozzle to block up long service life.

Description

Pneumatic cold glue spray gun

Technical Field

The utility model relates to a commodity circulation equipment for packing technical field especially relates to a pneumatic cold glue spray gun.

Background

A spray gun is a device that uses a quick release of liquid or compressed air as a motive force. In the common spraying places, especially in the high-speed packaging places, the spraying and sprinkling of materials are difficult to achieve uniform and quantitative, which affects the improvement of the packaging speed. Simultaneously, in the use of gluing the rifle, because the colloid has the condensation characteristic, easily because the workman forgets the jam that brings the shower nozzle after the operation because the clearance, influence the use.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a pneumatic cold glue spray gun optimizes through the needle bar to spouting gluey rifle, adopts the cavity needle bar, simultaneously, designs a plurality of gas line, carries out the operation with the material through the form of high-pressure atomizing for the material realizes even quantitative spraying, the purpose of spraying.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

a pneumatic cold glue spray gun comprises a gun body and an electromagnetic valve assembly connected to the rear end of the bottom of the gun body, wherein the gun body is U-shaped, a needle rod piston assembly penetrates through the interior of the gun body and comprises a piston and a needle rod, the interior of the needle rod is hollow, the tail of the needle rod is connected to the piston, a needle rod pipeline and a piston cavity are formed in the interior of the gun body and used for accommodating the needle rod and the piston, a needle rod guide pipe is further arranged in a gap in the middle of the gun body, and the needle rod guide pipe is sleeved on the needle rod; the front end of the needle rod piston assembly is wrapped by the spray head assembly, the rear end of the needle rod piston assembly is connected with the needle rod adjusting assembly, and the needle rod adjusting assembly is arranged at the upper end of the tail part of the gun body through the adjusting cylinder body; the front end of the bottom of the gun body is provided with a material joint which is communicated with a feeding pipeline in the gun body; the lower extreme of rifle body afterbody still is equipped with the needle bar control joint and the air circuit that set up side by side and connects, the needle bar control joint is used for air feed control needle bar piston assembly at the internal motion of rifle, the air circuit connects and is used for the air feed to break up the material, solenoid valve subassembly afterbody still is equipped with the solenoid valve socket.

Further, the shower nozzle subassembly includes shower nozzle lock nut, shower nozzle dustcoat and shower nozzle, shower nozzle dustcoat covers and establishes in the shower nozzle periphery, rifle body front end is equipped with the bellying, bellying surface middle part is equipped with the entry of needle bar pipeline, is equipped with four shower nozzle gas pockets around the entry outside at least, the shower nozzle gas pocket with the inlet pipeline communicates mutually, shower nozzle lock nut is fixed the bellying with shower nozzle dustcoat and shower nozzle on.

Further, the needle rod comprises a hollow channel and an air inlet hole, and the air inlet hole is communicated with a piston gun body formed in the gun body; the piston comprises a sealing ring A, a set screw and a sealing ring B, the sealing ring A and the sealing ring B are respectively sleeved at the front end and the rear end of the piston, the set screw is arranged in the middle of the piston, and the set screw is used for locking the needle rod inside the piston.

Further, the gas circuit connector is communicated with a gas circuit pipeline inside the gun body, and the tail end of the gas circuit pipeline is converged with the feeding pipeline.

Furthermore, the needle rod control joint is communicated with a gun needle gas pipeline, and the gun needle gas pipeline is also communicated with the piston chamber.

Further, the needle rod adjusting assembly comprises an adjusting handle, an adjusting cylinder body and a needle rod adjusting spring, the adjusting handle is rotatably connected to the tail of the adjusting cylinder body, and the spring is connected to the front end of the adjusting cylinder body and used for providing spring stress for movement of the needle rod piston assembly.

Furthermore, an adjusting component pipeline communicated with the hollow channel penetrates through the inside of the needle rod adjusting component.

The beneficial effects of the utility model reside in that:

(1) the device sprays and sprays materials by the spray gun in an intelligent control mode, can finish uniform and quantitative spraying and sprinkling of the materials, meets the requirements of different places, and has wide application range;

(2) open and close the homoenergetic and blast to the internal portion of rifle, guaranteed the internal clean of rifle, life is longer.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the split structure of the present invention;

FIG. 4 is a schematic structural view of the needle bar piston assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of the needle bar piston assembly of the present invention;

FIG. 6 is a schematic view of the showerhead assembly of the present invention;

FIG. 7 is a schematic structural view of the needle bar adjusting assembly of the present invention;

FIG. 8 is a schematic view of the cross-sectional structure of the middle part of the gun body of the present invention;

fig. 9 is a schematic view of the left cross-sectional structure of the gun body of the present invention;

fig. 10 is a schematic view of the right cross-sectional structure of the gun body of the present invention.

FIG. 11 is a schematic cross-sectional view of another embodiment of the present invention

In the figure: 1-a gun body, 11-a nozzle air hole, 12-a feeding pipeline and 13-a gas path pipeline; 14-a piston chamber; 15-gun needle gas pipeline, 16-needle rod pipeline, 2-needle rod adjusting component, 21-adjusting handle, 22-adjusting cylinder, 23-needle rod adjusting spring, 24-adjusting component pipeline, 3-needle rod control joint, 4-gas path joint, 5-electromagnetic valve component, 51-electromagnetic valve socket, 6-material joint, 7-spray head component, 71-spray head locking nut, 72-spray head outer cover, 73-spray head; 8-needle bar piston assembly, 81-piston, 811-seal a, 812-set screw; 813-seal ring B; 82-needle shaft, 821-hollow channel; 822-air intake hole, 9-needle bar conduit.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for illustrative purposes only and do not represent the only embodiments, and as used herein, the terms "upper," "lower," "left," "right," "front," "rear," and the like are used in a positional relationship with reference to the drawings.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

The first embodiment is as follows:

a pneumatic cold glue spray gun comprises a gun body 1 and an electromagnetic valve assembly 5 connected to the rear end of the bottom of the gun body 1, wherein the gun body 1 is U-shaped, a needle rod piston assembly 8 penetrates through the interior of the gun body 1, the needle rod piston assembly 8 comprises a piston 81 and a needle rod 82, the interior of the needle rod 82 is hollow, the tail of the needle rod 82 is connected to the piston 81, a needle rod pipeline 16 and a piston cavity 14 for accommodating the needle rod 82 and the piston 81 are respectively formed in the gun body 1, a needle rod guide pipe 9 is further arranged in the middle gap of the gun body 1, and the needle rod guide pipe 9 is sleeved on the needle rod 82; the front end of the needle rod piston assembly 8 is wrapped by the spray head assembly 7, the rear end of the needle rod piston assembly 8 is connected with the needle rod adjusting assembly 2, and the needle rod adjusting assembly 2 is arranged at the upper end of the tail part of the gun body 1 through the adjusting cylinder body 22; the front end of the bottom of the gun body 1 is provided with a material joint 6, and the material joint 6 is communicated with a feeding pipeline 12 in the gun body 1; the lower extreme of the afterbody of rifle body 1 still is equipped with needle bar control joint 3 and the air circuit and connects 4 that sets up side by side, and needle bar control joint 3 is used for the air feed to control the motion of needle bar piston assembly 8 in rifle body 1, specifically, under the control of needle bar control joint 3, and the piston 81 is the back-and-forth movement in piston chamber 14 to drive the needle bar and support shower nozzle 73 and open shower nozzle 73. The air path connector is used for supplying air to break up materials, and the tail of the electromagnetic valve component 5 is also provided with an electromagnetic valve socket 51.

In this embodiment, the nozzle assembly 7 includes a nozzle locking nut 71, a nozzle housing 72 and a nozzle 73, the nozzle housing 72 covers the nozzle 73, the front end of the gun body 1 has a protrusion, the middle of the surface of the protrusion has an inlet of the needle rod pipeline 16, at least four nozzle air holes 11 are formed around the outer side of the inlet, the nozzle air holes 11 are communicated with the feeding pipeline 12, and the nozzle 73 locking nut fixes the nozzle housing 72 and the nozzle 73 to the protrusion.

In this embodiment, the needle rod 82 includes a hollow passage 821 and an air inlet 822, the air inlet 822 communicates with the piston 81 formed inside the gun body 1 and the gun body 1; the piston 81 comprises a sealing ring A811, a set screw 812 and a sealing ring B813, wherein the sealing ring A811 and the sealing ring B813 are respectively sleeved at the front end and the rear end of the piston 81, the set screw 812 is arranged in the middle of the piston 81, and the set screw 812 is used for locking the needle rod 82 in the piston 81.

In this embodiment, the air path joint 4 is communicated with an air path pipeline 13 inside the gun body 1, and the tail end of the air path pipeline 13 converges with the feeding pipeline 12.

In this embodiment, the needle bar control interface is in communication with a needle gas line 15, the needle gas line 15 also being in communication with the piston chamber 14.

In this embodiment, the needle bar adjusting assembly 2 includes an adjusting handle 21, an adjusting cylinder 22, and a needle bar adjusting spring 23, the adjusting handle 21 being rotatably connected to a rear portion of the adjusting cylinder 22, and the spring being connected to a front end of the adjusting cylinder 22 for providing spring stress for movement of the needle bar piston 81 assembly.

When the glue gun is not used, the needle rod control joint 3 is communicated with the right side of the cavity of the piston 81, and the needle rod 82 control pipeline is communicated with the left cavity of the piston 81 through an electromagnetic valve; normally, the piston 81 is extended out, the needle rod 82 blocks the spray head 73, and the material connector 6 is closed;

when the solenoid valve is energized, the gun needle gas line communicates with the left chamber of the piston 81, and the needle rod 82 retracts correspondingly because the cross-sectional area of the chamber is much greater than the cross-sectional area of the extended chamber. Gas is flushed through the inlet port 822 of the needle 82 and travels along the tubing towards the spray head assembly 7, thereby purging the nozzle and needle. At this time, after the needle rod leaves the spray head 73, the material joint 6 is opened, and the material is conveyed to the feeding pipeline; correspondingly, the air path joint 4 is opened, high-pressure air is connected in, and is blown in along the air path pipeline, because the air path pipeline is communicated with the four spray heads 73 air holes of the spray head 73 through the internal channel of the gun body, the whole gas is converged in front of the spray head 73 through the spray head outer cover 72, and thus the material is atomized and sprayed.

After the work is finished, the material connector 6 is closed firstly, and the residual materials are sprayed out to keep the inside of the gun body clean. Because the needle rod 82 is designed to be a hollow structure, air introduced by the needle rod control joint 3 and the air circuit joint 4 can blow and wash the whole piston 81 cavity and the corresponding air circuit pipeline, and a cleaning effect is achieved.

Example two:

the embodiment is changed on the basis of embodiment one, correspondingly, for the whole glue gun subassembly that makes is more succinct, can run through the adjusting part pipeline 24 that is provided with intercommunication hollow channel 821 in needle bar adjusting part 2 inside, adjusting part pipeline 24 is through external air compressor, squeeze into the air toward hollow channel 821, the air gets into along hollow channel 821 this moment, part air blows off from inlet port 822 simultaneously, blow in to the piston cavity 14 in the rifle body 1, control piston 81 moves backward, thereby drive needle bar 82 backward, gaseous from shower nozzle 73 department blow off, realize the cleaning to hollow channel 821 and front end shower nozzle 73.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. A pneumatic cold glue spray gun is characterized by comprising a gun body and an electromagnetic valve assembly connected to the rear end of the bottom of the gun body, wherein the gun body is U-shaped, a needle rod piston assembly penetrates through the interior of the gun body and comprises a piston and a needle rod, the interior of the needle rod is hollow, the tail of the needle rod is connected to the piston, a needle rod pipeline and a piston cavity for accommodating the needle rod and the piston are formed in the gun body respectively, a needle rod guide pipe is further arranged in a gap in the middle of the gun body, and the needle rod guide pipe is sleeved on the needle rod; the front end of the needle rod piston assembly is wrapped by the spray head assembly, the rear end of the needle rod piston assembly is connected with the needle rod adjusting assembly, and the needle rod adjusting assembly is arranged at the upper end of the tail part of the gun body through the adjusting cylinder body; the front end of the bottom of the gun body is provided with a material joint which is communicated with a feeding pipeline in the gun body; the lower end of the tail part of the gun body is also provided with a needle rod control joint and an air circuit joint which are arranged side by side, the needle rod control joint is used for supplying air to control a needle rod piston assembly to move in the gun body, and the air circuit joint is used for supplying air to break up materials; and the tail part of the electromagnetic valve assembly is also provided with an electromagnetic valve socket.

2. The pneumatic cold glue spray gun according to claim 1, wherein the spray head assembly comprises a spray head locking nut, a spray head outer cover and a spray head, the spray head outer cover is arranged on the periphery of the spray head, a protruding portion is arranged at the front end of the gun body, an inlet of a needle rod pipeline is arranged in the middle of the surface of the protruding portion, at least four spray head air holes are formed in the periphery of the outer side of the inlet, the spray head air holes are communicated with the feeding pipeline, and the spray head locking nut fixes the spray head outer cover and the spray head to the protruding portion.

3. A pneumatic cold glue gun according to claim 1, wherein said shank comprises a hollow channel and an air inlet hole, said air inlet hole communicating with a piston gun body formed inside the gun body; the piston comprises a sealing ring A, a set screw and a sealing ring B, the sealing ring A and the sealing ring B are respectively sleeved at the front end and the rear end of the piston, the set screw is arranged in the middle of the piston, and the set screw is used for locking the needle rod inside the piston.

4. The pneumatic cold glue spray gun according to claim 1, wherein the air passage joint is communicated with an air passage pipeline inside the gun body, and the tail end of the air passage pipeline is converged with the feeding pipeline.

5. A pneumatic cold glue gun according to claim 1, wherein said needle bar control connection communicates with a gun needle gas line, said gun needle gas line also communicating with the piston chamber.

6. A pneumatic cold glue spray gun according to claim 1 or 3, wherein said needle rod adjustment assembly comprises an adjustment handle rotatably connected to a rear portion of the adjustment cylinder, an adjustment cylinder, and a needle rod adjustment spring connected to a front end of said adjustment cylinder for providing spring stress for movement of the needle rod piston assembly.

7. A pneumatic cold glue gun according to claim 3, wherein said needle rod regulating assembly has a regulating assembly conduit extending therethrough and communicating with said hollow passage.