CN219560157U - A polyurethane spray gun with uniform spray structure - Google Patents

Abstract

The utility model relates to the field of spraying equipment and discloses a polyurethane spraying gun with a uniform spraying structure, which comprises a spraying gun body connected with a conveying pipe, wherein the spraying gun body comprises a gun barrel part and a spray head part fixedly arranged at a gun barrel part port, a base ring is fixedly arranged on the outer ring of the gun barrel part corresponding to the spray head part, the end face of the base ring is flush with the end face of the spray head part, a decontamination component for cleaning the spraying end face of the spray head part is arranged on the base ring, and the surface of the spray head part can be scraped by the decontamination component after the spray gun is used, so that the discharge hole of the spray head part is prevented from being blocked, and the spray is uniform in subsequent use.

Description

A polyurethane spray gun with a uniform spray structure

technical field

The utility model relates to the field of spraying equipment, in particular to a polyurethane spraying gun with a uniform spraying structure.

Background technique

With the continuous improvement and improvement of the material living standards of the general public, the development speed of a series of industries such as automobile processing, furniture manufacturing and processing, petrochemical industry, machinery industry, bridge and shipbuilding continues to increase. With its outstanding performance advantages, polyurethane coatings have begun to enter the market. In the new stage of rapid development, spray guns are commonly used for spraying. The black material and white material are heated and pressurized by polyurethane, and high-pressure impact is formed in the spray gun to form vortex mixing. The high-speed moving materials form a fine mist at the spray gun mouth. Droplets are evenly sprayed onto the surface of the object, but the end of the existing spray gun is designed in a flat-bottomed conical shape, which can easily cause the material to stay on the plug, resulting in poor spraying effect or even continuous accumulation, which affects the spraying output uniformity, for which we propose a polyurethane spray gun with a uniform spray structure.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides a polyurethane spraying gun with a uniform spraying structure, which solves the above-mentioned problems.

(2) Technical solution

In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyurethane spraying gun with a uniform spraying structure, including a spraying gun body connected to a feeding pipe, and the spraying gun body includes a gun barrel and a gun barrel The nozzle part with the port fixed, the outer ring of the gun barrel part corresponding to the nozzle part is fixedly equipped with a base ring, the end face of the base ring is flush with the end face of the nozzle part, and the base ring is provided with a nozzle for cleaning the nozzle. The decontamination component of the sprayed end face of the piece.

Preferably, the diameter of the base ring is larger than the diameter of the spraying end surface of the spray head piece.

Preferably, the annular end surface of the base ring facing away from the gun barrel is provided with front and rear through-type limiting ring grooves.

Preferably, the decontamination assembly includes a micro-motor, a scraper, a displacement shaft and a connector, and two sets of displacement shafts that are symmetrical about the apex are inserted into the limit ring groove, and the two sets of displacement shafts are flush and A micromotor is fixedly connected to the end surface of the gun barrel, and the outer wall of the end surface of the micromotor is attached to the outer wall of the end surface of the base ring. The end of the two sets of displacement shafts away from the micromotor is rotated and sleeved with a connecting piece. The scraper plate There is a displacement driving horizontal groove adapted to the connecting piece on the outer wall of the back side, and the displacement shaft is connected to the scraping plate by clamping in the horizontal driving groove through the connecting piece, and the outer wall of the back side of the cleaning plate and the base ring are away from the gun. The outer wall of the end surface of the cylinder is attached.

Preferably, the connecting piece is T-shaped with a 90-degree rotation, the cross-section of the displacement-driven transverse groove is also T-shaped with a 90-degree rotation, and the back of the displacement-driven transverse groove corresponding to the scraper is open.

Preferably, the bottom end of the scraper is in the shape of a right triangle.

(3) Beneficial effects

Compared with the prior art, the utility model provides a polyurethane spraying gun with a uniform spraying structure, which has the following beneficial effects:

1. The polyurethane spray gun with a uniform spraying structure drives the two sets of micro motors on the back of the brake base ring to drive the displacement shafts to rotate, and controls the two sets of micro motors to drive the two sets of displacement shafts to rotate in opposite directions. At this time The two sets of displacement shafts rotate along the inner wall of the limit ring groove and are relatively displaced. When the two sets of displacement shafts are displaced relative to each other, they will drive the connecting piece and the micro motor to perform arc displacement, so that when the connecting piece drives the horizontal displacement in the horizontal groove It will pull the scraping plate to move vertically, so that the bottom of the scraping plate fits the end face of the nozzle, and scrapes off the residual paint solidification on the surface of the nozzle to prevent the outlet of the nozzle from being blocked and ensure the follow-up When the spray gun is used, the material is evenly discharged.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the decontamination structure of the utility model decontamination assembly.

In the figure: 1. Spraying gun body; 2. Gun barrel; 3. Nozzle; 4. Base ring; 5. Limiting ring groove; 6. Decontamination component; 7. Micro motor; 9. Displacement rotating shaft; 10. Connector; 11. Displacement driving transverse groove.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-2, a polyurethane spraying gun with a uniform spraying structure, including a spraying gun body 1 connected to a delivery pipe, a spraying gun body 1 including a barrel part 2 and a nozzle part fixed at the port of the barrel part 2 3. The outer ring of the gun barrel part 2 corresponding to the nozzle part 3 is fixedly installed with a base ring 4, the end face of the base ring 4 is flush with the end face of the nozzle part 3, and the base ring 4 is provided with a tool for cleaning the spraying end face of the nozzle part 3. Decontamination components6.

The diameter of the base ring 4 is larger than the diameter of the spraying end surface of the spray head part 3 .

The annular end surface of the base ring 4 facing away from the barrel part 2 is provided with a front and rear through-type limiting ring groove 5 .

The decontamination assembly 6 includes a micro motor 7, a scraper 8, a displacement shaft 9 and a connecting piece 10. Two sets of displacement shafts 9 that are symmetrical about the apex are inserted in the limit ring groove 5, and the two sets of displacement shafts 9 are flush and close to each other. The end face of the gun barrel part 2 is fixedly connected with a micro motor 7, the end face outer wall of the micro motor 7 is attached to the end face outer wall of the base ring 4, and the end face of the two sets of displacement shafts 9 away from the micro motor 7 is rotated and sleeved with a connecting piece 10. The outer wall of the back of the dirty plate 8 begins to have a displacement driving horizontal groove 11 adapted to the connecting piece 10, and the displacement shaft 9 is clamped in the displacement driving horizontal groove 11 through the connecting piece 10 to connect with the scraping plate 8, and the surface of the dirty scraping plate 8 The outer wall of the back is attached to the outer wall of the end face of the base ring 4 away from the gun barrel part 2, and the two sets of micro motors 7 on the back of the brake base ring 4 drive the displacement shaft 9 to rotate, and control the two sets of micro motors 7 to drive the two sets of displacement The rotating shaft 9 rotates in the opposite direction. At this time, the two groups of displacement rotating shafts 9 rotate along the inner wall of the limit ring groove 5 and are relatively displaced. Type displacement, so that when the horizontal displacement in the displacement driving transverse groove 11 is driven by the connecting piece 10, the scraper plate 8 will be pulled for vertical displacement, so that the bottom end of the scraper plate 8 is attached to the end surface displacement of the nozzle part 3, and the nozzle part 3 Scrape off the remaining paint solidification on the surface.

The connecting piece 10 is T-shaped with a 90-degree rotation, and the cross-section of the displacement drive transverse groove 11 is also a T-shape with a 90-degree rotation, and the back of the displacement drive transverse groove 11 corresponding to the scraper plate 8 is open, and the scraper plate 8. The bottom end is the sharp shape of a right triangle.

Working principle: After the spraying gun body 1 is used, the two sets of micro motors 7 on the back of the brake base ring 4 can drive the displacement shaft 9 to rotate, and control the two sets of micro motors 7 to drive the two sets of displacement shafts 9 to rotate in the opposite direction. Direction rotation, at this time two sets of displacement shafts 9 rotate along the inner wall of the limit ring groove 5 and relatively displaced, when the two sets of displacement shafts 9 are relatively displaced, they will drive the connecting piece 10 and the micro motor 7 to perform arc displacement, thereby passing through the connection When the component 10 is displaced laterally in the displacement-driven transverse groove 11, it will pull the scraper plate 8 for vertical displacement, so that the bottom end of the scraper plate 8 fits the end face of the nozzle part 3 and displaces, and the remaining paint solidified on the surface of the nozzle part 3 Scraping is carried out to prevent the discharge port of the spray head part 3 from being blocked, so as to ensure that the discharge of the subsequent spraying gun is uniform when used.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. a polyurethane spraying gun with uniform spraying structure, is characterized in that, comprises the spraying gun body (1) that is connected with delivery pipe, and described spraying gun body (1) comprises gun barrel part (2) and gun barrel part (2) The spray head part (3) that the port is fixed, the outer ring of the corresponding spray head part (3) of the gun barrel part (2) is fixedly equipped with a base ring (4), and the end surface of the base ring (4) It is flush with the end face of the spray head part (3), and the base ring (4) is provided with a decontamination assembly (6) for cleaning the spray end face of the spray head part (3). 2. A polyurethane spraying gun with uniform spraying structure according to claim 1, characterized in that: the diameter of the base ring (4) is larger than the diameter of the spraying end surface of the spraying head piece (3). 3. A polyurethane spraying gun with a uniform spraying structure according to claim 1, characterized in that: the annular end surface of the base ring (4) facing away from the gun barrel (2) is provided with front and rear through-type stoppers ring groove (5). 4. A polyurethane spraying gun with a uniform spraying structure according to claim 3, characterized in that: the decontamination assembly (6) includes a micro motor (7), a scraper (8), a displacement shaft (9 ) and connectors (10), two groups of displacement shafts (9) symmetrical about the apex are inserted in the limit ring groove (5), and the displacement shafts (9) of the two groups are flush and close to the barrel ( The end face of 2) is fixedly connected with a micro motor (7), the end face outer wall of the micro motor (7) is attached to the end face outer wall of the base ring (4), and the two sets of displacement shafts (9) deviate from the position of the micro motor (7) One end is rotatably connected with a connecting piece (10), and the back outer wall of the scraper plate (8) begins to have a displacement drive transverse groove (11) adapted to the connecting piece (10), and the displacement shaft (9) is connected through the The part (10) is clamped in the displacement drive transverse groove (11) and connected with the scraper (8), and the back outer wall of the scraper (8) and the base ring (4) are away from the end face of the gun barrel part (2) Exterior fit. 5. A polyurethane spraying gun with a uniform spraying structure according to claim 4, characterized in that: the connecting piece (10) is a T-shaped rotation of ninety degrees, and the displacement drives the transverse groove (11) The cross section is also a T-shape rotated by 90 degrees, and the back side of the displacement driving transverse groove (11) corresponding to the scraping plate (8) is open. 6. A polyurethane spraying gun with a uniform spraying structure according to claim 4, characterized in that: the bottom end of the scraping plate (8) is a sharp right-angled triangle.