JP3131062U - Stretchable telescopic urethane spray gun - Google Patents

Abstract

[PROBLEMS] To prevent the scattering and expansion of urethane, which is a spraying agent, and to prevent the scattering during spraying, and to achieve clean spraying, which has good workability, safety, economy, and maintenance performance. Provides a flexible urethane spray gun.
A spray gun main body 1 for supplying and discharging a main agent and a curing agent separately, a static mixer 2 for mixing and stirring the discharged main agent and a curing agent, and an outer peripheral portion of the static mixer. A ring-shaped container body having an air supply port and an open / close valve, and a plurality of telescopic nozzles around the front surface of the container body, and the tip nozzle portion is a truncated pyramid or truncated cone The anti-scattering expansion / contraction type nozzle 3 is provided in a shape, and the spraying place can be moved or temporarily stopped without curing the spraying agent.
[Selection] Figure 6

Description

  The present invention relates to a splash-proof stretchable urethane spray gun that sprays urethane herbicides on gaps in roads to prevent weed breeding.

  In recent years, with the progress of road construction and changes in the social situation, road maintenance and repair work has become prominent in repetitive maintenance management on both ordinary roads and highways, and an enormous budget is required every year.

  These maintenance and management operations require a large amount of expenses, and at the same time, the management operation causes traffic congestion due to road regulations. In some cases, workers may cause unexpected personal accidents due to traveling vehicles. Sometimes it developed.

  Also, the urethane spray gun that has been used so far needs to replace the gun tip by stopping the spray due to the urethane adhering to the gun tip. If the spray is interrupted, it is in the static mixer. Since the urethane hardened and the static mixer was disposable, there were problems in terms of workability, maintenance and economy.

Here, the patent documents of spray guns filed so far are introduced for reference. (Patent Document 1)
JP-A-9-096102

  Therefore, in order to solve the above-mentioned problems, this device has no adhesion or hardening of the urethane, which is a spraying agent, prevents scattering during spraying, and enables a clean spraying workability and safety.・ To develop and provide a splash-proof stretchable urethane spray gun with good economic efficiency and maintenance.

  As means for solving this problem, a spray gun main body that mainly supplies and discharges the main agent and the curing agent, a static mixer that mixes and stirs the discharged main agent and the curing agent, and a static mixer A ring-shaped container main body having an air supply port and an opening / closing valve is provided on the outer periphery, and a plurality of telescopic nozzles are provided around the front surface of the container main body, and the tip nozzle portion is in a truncated pyramid shape, or It consists of an anti-scattering telescopic nozzle provided in a frustoconical shape, and during spraying, the amount of air released from the tip of the telescopic nozzle and the amount of air released from the tip of the telescopic nozzle By adjusting the position, the spray width can be adjusted appropriately, and the main agent, the curing agent spray agent and the air passage can be separated from each other, making it possible to stop the operation of the air alone. The discharge of the curing agent by adjusting the trace and, without curing the spray agent at the nozzle tip, is obtained by allowing movement and temporary working stop spraying location.

  As an effect of this device, a spray gun main body that mainly supplies and discharges the main agent and the hardener separately, a static mixer that mixes and stirs the discharged main agent and hardener, and an outer peripheral portion of the static mixer. A ring-shaped container body having an air supply port and an opening / closing valve is provided, and a plurality of telescopic nozzles are provided around the front surface of the container body, and the tip nozzle portion is in a truncated pyramid shape or a truncated cone shape. It is composed of an anti-scattering type expansion / contraction nozzle provided at the top, and at the time of spraying, by mixing and stirring the main agent and curing agent, the amount of air discharged from the tip of the expansion / contraction nozzle and the position adjustment of the nozzle tip, The spray width can be adjusted moderately, and by separating the spray agent and air passages of the main agent and curing agent, the operation of the air alone can be stopped, and the main agent and curing agent in the static mixer can be stopped. By adjusting the output to a small amount, the spraying point can be moved and the temporary work stopped without curing the spraying agent at the nozzle tip, reducing the spraying agent, reducing the number of parts, and weight. This makes it possible to reduce the production man-hours and curing costs, and has extremely beneficial effects such as improvement in workability, maintenance and economy, and improvement in finishing performance (quality).

  As the best mode of this invention, the number of anti-scattering telescopic nozzles is inserted in the outer periphery of the static mixer inserted in the tip of the spray gun body, and the air can be adjusted back and forth. Considering the discharge amount and manufacturing cost, etc., about 4 are optimal, and the material is lightweight aluminum with excellent workability, operability and maintenance. However, it can be appropriately changed according to the environment and conditions to be used.

  Accordingly, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5. A gap in a road, for example, a gap between concrete and asphalt, is filled with a filler to prevent weeds from breeding. In the spray gun, the spray gun mainly includes a spray gun body (1) for supplying and discharging the main agent (U) and the curing agent (H) separately, and the discharged main agent (U) and the curing agent. A static mixer (2) for mixing and stirring (H), and a ring-shaped container body (3a) having an air supply port and an open / close valve (V2) on the outer periphery of the static mixer (2); and The container main body (3a) has a plurality of telescopic nozzles around the front surface, and includes a scattering prevention type telescopic nozzle (3) provided with a tip nozzle portion in a truncated pyramid shape or a truncated cone shape, And when spraying, the main ingredient mixed and stirred U) and curing agent (H) can be appropriately adjusted by adjusting the amount of air discharged from the tip of the telescopic nozzle and the position of the nozzle tip, and the main agent (U) and curing agent ( H) By separating the spray agent and air passage from each other, it is possible to stop the operation of the air alone, and by adjusting the discharge of the main agent and curing agent in the static mixer (2) to a small amount, the tip of the nozzle In this case, it is composed of a splash-preventing telescopic urethane spray gun characterized in that the spraying place can be moved and the temporary work can be stopped without curing the spray agent.

  Next, the details of dimensions, materials, etc. of the present invention will be described. First, as shown in FIGS. 1A, 1B, and 1C, the spray gun body (1) is a tip portion of a conventional product ( Using only the filler inlet / outlet part), the dimensions are about 50mm in length and width x about 85mm in total length. The main body urethane (U) and hardener (H ) Are provided, and the supplied urethane (U) and curing agent (H) are inserted in the static mixer (2) at the tip of the spray gun body. At the left and right front portions of the landing part (1d), there are provided a discharge port (1b ′) (1c ′) of about Φ5 mm, a screw part (1d ′) for screwing, and a partition plate (1e) at the center, The urethane (U) and the curing agent (H) are discharged from each.

  Next, the outline of the anti-scattering telescopic nozzle (3) will be explained. The material is all made of aluminum, and the large-diameter nozzle (3b) is mainly welded to the container body (3a) and the front surface of the container body. The guide plate (3e) is welded and provided at two locations in the middle in the front-rear direction of the large-diameter nozzle, and the small-diameter nozzle (3c) is fitted into the large-diameter nozzle (3b), Reinforcing material (3c ') is welded to the front and rear two locations, and is provided so as to be movable in the front-rear direction. It is made up like this. The tip of the small-diameter nozzle (3c) can change the air discharge angle by changing the cutting angle, and can be changed each time according to the situation at the site.

  Next, the assembly procedure will be described. As shown in FIGS. 5A and 5B, first, the static mixer is inserted into the static mixer insertion portion (1d) provided at the tip of the spray gun body (1). Screw the static mixer (2) with the screw cap (2c), and then insert the guide plate (3e) portion of the anti-scattering telescopic nozzle (3) into the outer periphery of the static mixer (2). The stopper (3d) is fixed to the root of the spray gun body (1) with the tip screw.

  Next, the method of use and the adjustment method will be described. As shown in FIG. 6, first, the main urethane (U) and curing agent (H) supply hoses and the air supply hose are respectively connected to the urethane. (U) and the curing agent (H) pump for pumping are activated, and when the urethane (U) and curing agent (H) mixed and stirred from the tip of the static mixer (2) start to be discharged, the air open / close valve (V2) is opened and the small-diameter nozzle (3c) is moved back and forth while gradually adjusting the air discharge amount to adjust the air spread and set to the optimum position. The spray width x thickness is usually about 100mm x 3mm as standard, and it is effective to adjust the spray width to about 15mm in a place with a lot of wrinkles and wrinkles. is there.

  As other examples of the present invention, it can be used for various purposes other than roads, such as pools, building rooftops, fences, and stadiums.

  This invention's anti-scattering telescopic urethane spray gun has no adhesion / curing of urethane, which is a spray agent, and prevents spraying during spraying, enabling clean spraying, Because it is safe, economical, and maintainable, it has industrial applicability in terms of contributing to many civil engineering-related markets.

1A shows an embodiment of the present invention, in which FIG. 1A is a partially cutaway plan view of a spray gun body, FIG. 1B is a partially cutaway front view, and FIG. 1C is an arrow a in FIG. FIG. One Example of this invention is shown, (A) is a partial cutaway front view of a static mixer, (B) is sectional drawing. One Example of this invention is shown, (A) is a partially broken front view of a scattering prevention type expansion-contraction type nozzle, (B) is a top view. An example of this invention is shown and it is a left view. One Example of this invention is shown, (A) is a front view which shows the assembly point, (B) is a top view. It is a front view which shows the usage example of this device. It is a front view which shows the prior art example of this device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spray gun main body 1 'Conventional spray gun main body 1a Gun main body 1b Main agent supply port 1b' Main agent discharge port 1c Hardener supply port 1c 'Hardener discharge port 1d Static mixer insertion part 1d' Static mixer screw Part 1e Partition plate 2 Static mixer 2a Static mixer main body 2b Static mixer spiral plate 2c Static mixer screw cap 3 Splash-preventing telescopic nozzle 3a Container main body 3b Large diameter nozzle 3c Small diameter nozzle 3c 'Reinforcing material 3d Stopper 3e Guide Plate 4 Nozzle tip of conventional spray gun AR Air AH Air hose V1 Air supply open / close valve V2 Air supply open / close valve U Main agent (urethane)
H Hardener

Claims (1)

  In a spray gun that fills gaps on the road, for example, gaps between concrete and asphalt, to prevent weeds from growing, the spray gun is mainly composed of a main agent (U) and a hardener (H Spray gun body (1) for supplying and discharging separately, static mixer (2) for mixing and stirring discharged main agent (U) and curing agent (H), and static mixer (2) A ring-shaped container body (3a) having an air supply port and an open / close valve (V2) is provided on the outer periphery, and a plurality of telescopic nozzles are provided around the front surface of the container body (3a). The main part (U) and the curing agent (H) mixed and stirred at the time of spraying are composed of the anti-scattering type telescopic nozzle (3) provided in the shape of a truncated pyramid or truncated cone. Air discharged from the tip of the telescopic nozzle By adjusting the amount and the position of the nozzle tip, the spray width can be adjusted appropriately, and by separating the main agent (U) and the curing agent (H) spray agent from the air passage, The operation can be stopped, and by adjusting the discharge of the main agent and curing agent in the static mixer (2) to a small amount, the spraying point can be moved or temporarily stopped without curing the spraying agent at the nozzle tip. A splash-proof, expandable urethane spray gun characterized by being made possible.

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