JP2005279426A - Auxiliary tool for coating machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary tool for a coating machine capable of feeding a water droplet of a coating liquid having a proper size to a face to be coated such as the inner face of a house film with a high ceiling without scattering around the coating machine and avoiding waste. <P>SOLUTION: The auxiliary tool for the coating machine includes a cylindrical main body 10 forming an air flow path 10a inside, having an air introduction port 10b at the rear end and having an air jet port 10c at the tip end, and a nozzle 11 fixed on the center around the tip end of the cylindrical main body 10 to jet the coating liquid, wherein the tip end of the nozzle 11 is arranged inside the air jet port 10c of the main body 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to an auxiliary tool for a coating machine, and more specifically, an auxiliary for a coating machine that can deliver a coating liquid droplet of an appropriate size to a coated surface such as an inner surface of a high-ceiling house film without being scattered without waste. Concerning ingredients.

  Conventionally, to improve the antifogging property and flowability of agricultural films that are coated and spread on pipe houses and tunnels for cultivation of vegetables and fruits, antifogging agents containing colloids such as silica and alumina are applied. (See Patent Documents 1 and 2).

  This anti-fogging agent aims to improve the hydrophilicity of the film surface and improve the anti-fogging property and flowability by forming a hydrophilic inorganic coating on the surface of the film made of non-hydrophilic resin. It is a thing.

As a method for applying such a coating type antifogging agent, conventionally, a spray method, a brush coating method, and the like are known (see Patent Document 3).
Japanese Patent Publication No. 64-5078 Japanese Patent Publication No. 63-45432 JP 2000-297274 A

  Conventionally, when a film spread on a house is applied by a spray method, there is a problem that it is difficult to apply in the vicinity of the film. Recent houses have a high ceiling, so it is practically impossible for the spray nozzle outlet to be close to the film on the ceiling, and there are curtain wires in the house. It is more difficult to make the discharge port close to the ceiling film. Furthermore, it is very troublesome to apply from between the wires.

  Therefore, it is inevitably applied in a state away from the film, but if applied from a distant position, it is difficult to continue feeding an appropriate amount of droplets to be sprayed onto a predetermined portion, and a large amount of the film around the surroundings or in the air There is a problem that the useless liquid droplets are scattered and the coating liquid is not only wasted, but also falls on the coating operator.

  Even if the droplets are to be scattered far away, the conventional spray coating is a spray-like fine droplet, so that there is a problem that it is swept by the wind pressure and dissipated in the air.

  For this reason, it is desired to develop a coating means that can deliver a droplet of an appropriate size without being scattered around the periphery without waste.

  In addition, with the brushing method, it is difficult to apply the coating solution uniformly over a large area, and it is impossible to apply to places that are out of reach because of manual work. Therefore, there is a problem that workability is extremely bad.

  Thus, the present invention has an object to provide an auxiliary tool for a coating machine that can deliver a coating liquid droplet of an appropriate size to a coated surface such as the inner surface of a house film with a high ceiling without being scattered without being scattered around the periphery. To do.

  Other problems of the present invention will become apparent from the following description.

The above problems are solved by the following inventions.
(Claim 1)
An air flow path is formed inside, a cylindrical main body having an air inlet at the rear end and an air outlet at the front end, and a nozzle for ejecting a coating liquid fixed at the center near the front end of the main body. An auxiliary tool for an applicator characterized in that the tip of the nozzle is arranged inside the air outlet of the main body.
(Claim 2)
^2. The coating machine auxiliary according to claim 1, wherein the inner diameter of the cylindrical main body is 5 cm or more and 20 cm or less, and the opening area of the coating liquid ejection port of the nozzle is 0.005 cm ² or more and 0.05 cm ² or less. Ingredients.
(Claim 3)
The auxiliary tool for a coating machine according to claim 1 or 2, wherein the tip position of the nozzle is disposed within 20 cm from the air outlet of the cylindrical main body.

  ADVANTAGE OF THE INVENTION According to this invention, the auxiliary | assistant tool for applicators which can deliver a coating liquid water droplet of an appropriate magnitude | size on a to-be-coated surface like the inner surface of a house film with a high ceiling without wasting can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view showing an applicator auxiliary tool according to the present invention, and FIG. 2 is a front view of the applicator auxiliary tool according to the present invention as viewed from the tip side.

  The applicator auxiliary tool 1 includes an auxiliary tool main body 10, a nozzle 11 for ejecting a coating liquid provided at the tip of the auxiliary tool main body 10, and a blowing means 12 that sends air to the auxiliary tool main body 11. And have.

  The auxiliary tool main body 10 is formed of a cylindrical straight pipe having an air flow path 10a inside, and an opening at the rear end (right end in FIG. 1) serves as an air introduction port 10b and a tip (FIG. 1). The opening at the left end) is an air outlet 10c.

  The inner diameter of the auxiliary tool body 10 is preferably 5 cm or more and 20 cm or less. If it is less than 5 cm, sufficient air volume cannot be obtained, and if it exceeds 20 cm, sufficient air speed cannot be obtained.

  A coating liquid circulation pipe 13 is provided inside the auxiliary tool body 10. One end 13 a of the coating liquid circulation pipe 13 extends toward the rear end of the auxiliary tool body 10, penetrates the side wall 10 d, and protrudes outside the auxiliary tool body 10. The other end 13b extends toward the center of the auxiliary tool body 10 near the air outlet 10c, and a nozzle 11 is provided at the tip thereof.

  At the tip of the nozzle 11, there is provided a coating liquid ejection port 11a for ejecting a coating liquid pumped through the coating liquid circulation pipe 13 by the pressure of the compressor, which will be described later. In this embodiment, the coating liquid ejection port 11a. The front end position of the nozzle 11 that opens is retracted behind the same surface position as the air jet port 10 c of the auxiliary tool body 10, that is, retracted into the auxiliary tool body 10.

  With such a configuration, the fine droplet-shaped coating liquid ejected from the nozzle 11 becomes a finer droplet when ejected from the middle of the air stream, and is far away with the air stream in the form of a dense mist. Can be skipped to.

  The tip position of the nozzle 11 is preferably arranged at a position within 20 cm within the auxiliary tool body 10 rather than the air jet port 10c. If it exceeds 20 cm, the coating liquid may adhere to the inside of the auxiliary tool body 10.

The opening area of the coating liquid ejection port 11a of the nozzle 11 is preferably 0.005 cm ² or more 0.05 cm ² or less, it is possible to obtain an appropriate size of the droplets in this range.

  Reference numeral 14 denotes a component that supports the nozzle 11. The shape is not limited as long as it does not obstruct air flow. In the illustrated embodiment, it is formed in a plate shape and is a rectifying plate that rectifies the air flow in the auxiliary tool body 10. And the insertion hole 14A is formed in the orthogonal | vertical site | part of the two baffle plates 14, the coating liquid distribution pipe 13 is inserted in this insertion hole 14A, and the coating liquid distribution pipe 13 is being fixed. With such a configuration, the air ejected from the air ejection port 10c is ejected to the outside in a laminar flow state, and the coating liquid from the nozzle 11 is ejected from the middle of the air flow ejected in a laminar flow state.

  Such a baffle plate 14 can also create a spiral flow by curving so as to be inclined in the direction of air flow.

  At one end 13a of the coating liquid circulation pipe 13 projecting outside from the side wall 10d of the auxiliary tool body 10, there is an engaging means for detachably connecting one end of a coating liquid hose described later. This engaging means is optional as long as one end of the coating liquid hose can be detachably connected, but can be configured to be mutually connectable with the engaging means provided in the coating liquid hose of the existing coating machine. Preferably, this enables the applicator auxiliary tool 1 to be easily assembled and used with an existing applicator. That is, the coating liquid circulation pipe 13 and the nozzle 11 in the coating tool auxiliary tool 1 have the same functions as those of a conventional coating machine that ejects the coating liquid in the form of fine droplets as it is.

  In this embodiment, a screw portion 13c for screwing one end of the coating liquid hose is provided.

  The air blowing means 12 is configured by a blower that blows air by rotating a fan 12b by driving a motor 12a. The air blowing means 12 is directed to the air inlet 10b on the rear end side of the auxiliary tool body 10 through a blower pipe 15. The air of pressure is sent. The blower pipe 15 is configured by a flexible pipe that can flexibly follow the movement of the auxiliary tool body 10, and is attached by screwing an attachment ring 16 to the rear end of the auxiliary tool body 10.

  The pressure of the air sent by the blower 12 causes the coating liquid ejected from the coating liquid ejection port 11a of the nozzle 11 to adhere to the coated surface and diffuses on the coated surface while pressing the coated liquid. It is preferable to have a pressure of the order. Reference numeral 12c in the drawing is a pressure adjustment switch for appropriately adjusting the pressure of air by the blowing means 12. The operator adjusts the pressure adjustment switch 12c to change the rotation amount of the fan 12b, thereby appropriately adjusting the pressure of the air ejected from the air ejection port 10c according to the position (height) of the surface to be coated. Can be adjusted.

  FIG. 3 is a configuration diagram of a coating apparatus using the coating machine auxiliary tool 1. The same parts as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

  As shown in the figure, the coating apparatus 100 is configured to include the coating tool auxiliary tool 1 described above, a coating liquid tank 2 that stores the coating liquid, a compressor 3, and a coating liquid hose 4. .

  The coating liquid hose 4 is screwed into a screw portion 13 c of one end 13 a of the coating liquid circulation pipe 13 of the auxiliary tool body 10, and the coating liquid in the coating liquid tank 2 that is pumped by the operation of the compressor 3 is supplied to the auxiliary tool body 10. The coating liquid can be ejected from the coating liquid outlet 11a of the nozzle 11 provided at the other end 13b of the coating liquid circulation pipe 13.

  Next, the effect | action of the auxiliary tool 1 for coating machines which concerns on this invention is demonstrated.

  By the operation of the compressor 3, the coating liquid in the coating liquid tank 2 passes through the coating liquid hose 4 and the coating machine flow pipe 13 in the coating tool auxiliary tool 1 and is fine droplets from the coating liquid outlet 11 a at the tip of the nozzle 11. It ejects as d (see FIG. 4).

  At the same time, air of a predetermined pressure is sent from the air inlet 10b to the air flow path 10a in the coating liquid auxiliary tool 1 through the air pipe 15 by the operation of the air blowing means 2, and passes through the nozzle 11 around the air. From the jet outlet 10c, it ejects vigorously toward the front of the coating liquid auxiliary tool 1. In FIG. 4, the symbol a indicates the flow of air ejected from the air ejection port 10c.

  Immediately thereafter, the droplet d ejected from the nozzle 11 is divided into air that flows vigorously around it, and is pushed far away without being diffused so as to be surrounded.

  For this reason, even if the application liquid auxiliary tool 1 is held in the hand and the application liquid is applied toward the high ceiling film surface, the appropriate size of the application liquid water droplets (droplet d) ejected from the nozzle 11 are formed around the periphery. It can be delivered without waste without being scattered.

  The droplet d of the coating liquid adhering to the surface to be coated 200 on the flow of the air a ejected from the nozzle 11 and ejected from the air ejection port 10c (see FIG. 5A) is ejected from the air ejection port 10c. It is uniformly applied to the surface to be coated 200 by the air a, the water droplets adhere to the film surface in a dense state, and further spread while pressing the water droplets into the surface due to the wind pressure (see FIG. 5B). The droplets d adhering to the surface 200 come to be integrally connected to each other, whereby a coating film D made of the coating liquid is formed on the coated surface 200 (see FIG. 5C).

  In order to exert such an effect more remarkably, the size of the droplet d of the coating liquid ejected from the coating liquid ejection port 11a of the nozzle 11 in the coating tool auxiliary tool 1 is preferably 50 to 500 μm. . In general, the size of the liquid droplets of the coating solution such as antifogging agent is a mist of about 100 to 200 μm so that it can be uniformly applied over a wide surface to be coated, dissipates to the periphery and does not reach far away. As a result, by using the applicator auxiliary tool 1 according to the present invention, the coating film D can be efficiently formed without causing uneven coating or dripping.

  The auxiliary tool for a coating machine of the present invention can be used not only for application of an antifogging agent to a house film, but also effectively for application of agricultural chemicals to agricultural products.

Sectional drawing which shows the auxiliary tool for coating machines which concerns on this invention The front view which looked at the auxiliary tool for coating machines which concerns on this invention from the front end side The block diagram of the coating device using the auxiliary tool for coating devices which concerns on this invention The figure explaining the mode of the coating liquid which spouted from the auxiliary tool for coating machines (A)-(c) is a figure explaining the mode of the coating liquid adhering to the to-be-coated surface.

Explanation of symbols

1: Auxiliary tool for applicator 10: Auxiliary tool body 10a: Air flow path 10b: Air inlet 10c: Air outlet 10d: Side wall 11: Nozzle 11a: Coating liquid outlet 12: Blowing means 12a: Motor 12b: Fan 12c : Pressure adjustment switch 13: Coating liquid flow pipe 13a: One end 13b: The other end 13c: Screw part 14: Current plate 15: Blower pipe 16: Mounting ring 2: Coating liquid tank 3: Compressor 4: Coating liquid hose 100: Coating device 200: surface to be coated a: air d: droplet D: coating film

Claims (3)

  An air flow path is formed inside, a cylindrical main body having an air inlet at the rear end and an air outlet at the front end, and a nozzle for ejecting a coating liquid fixed at the center near the front end of the main body. An auxiliary tool for an applicator characterized in that the tip of the nozzle is disposed inside the air outlet of the main body. ^2. The coating machine auxiliary according to claim 1, wherein the inner diameter of the cylindrical main body is 5 cm or more and 20 cm or less, and the opening area of the coating liquid ejection port of the nozzle is 0.005 cm ² or more and 0.05 cm ² or less. Ingredients.   The auxiliary tool for a coating machine according to claim 1 or 2, wherein the tip position of the nozzle is disposed within 20 cm from the air outlet of the cylindrical main body.

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