JPH03133767A - Tank for paint powder - Google Patents

Abstract

PURPOSE:To prevent metallic rust or foreign materials of a tank from entering in the paint powder therein, by providing a detachable bag-form vessel containing paint powder with a cap and an air-permeable but paint powder- impermeable bottom having numerous fine pores, which is made of a synthetic resin material having an appropriate hardness to keep its form, in the tank. CONSTITUTION:A container vessel 30 for paint powder is formed by an appropriate hard synthetic resin material. And the vessel is composed of a bag-form vessel body 31 having numerous fine pores 33 at least at the bottom which are permeable for the air conducted from an air inlet 11 to the inside 10 of the tank but impermeable against paint powder, a synthetic resin head 34 equipped at an opening in the upper middle position of the vessel body 31 as a unit and having a vertical hole 35 in the center thereof and a fitting recessed groove 36 at the outer peripheral face, and further, a detachable cap 37 plugging the vertical hole 35 of the head 34. This containing vessel 30 for paint powder is detachably placed in the tank 10, directing the head 34 to the opening 21 of the cap 20.

Description

[Detailed Description of the Invention] [Problems to be Solved by the Invention] However, conventional tanks made of stainless steel are quite heavy and not only difficult to transport and handle, but also difficult to process and manufacture. The problem is that the cost is high, and when changing the paint color, it takes time and effort to clean the inside of the tank before changing the color, making it impossible to change the color quickly. It had

The present invention has been developed in view of the problems of the conventional technology, and its purpose is to provide a smooth painted surface without contamination of metal rust and other impurities in the powder coating. To provide a powder coating tank which can be easily and quickly changed colors, is light in weight and easy to handle, and can be manufactured at low cost.

[Means for solving problems]

For this purpose, the present invention provides a bottomed tank body having an air inlet, a removable lid body having an opening for sealing the top opening of the tank body, and a synthetic resin material having shape-retainable hardness. a bag-like powder paint storage container body with a cap, which is formed of a resin material and has numerous micropores in at least the bottom portion that allow air to pass through but do not allow powder paint to pass through; It is characterized by a structure in which it is replaceably placed in the tank body with its neck facing the opening of the lid body.

[For production]

The powder coating tank according to the present invention has the above structure, and is used as follows.

The powder paint storage container body 30 filled with powder paint 40 and capped with a cap 37 is referred to as a tank body l.

The lid 20 is tightly capped on the tank body 1o by engaging the neck locking groove 36 with the peripheral edge of the lid opening 21 and leaving a gap with the bottom surface 32. The cap 37 is then removed and the injector 50 is fixed.
is inserted into the powder coating material 40 in the container body 30 through the neck vertical hole 35, and then introduced into the tank body 10 through the air inlet 11 and the powder coating material by the air introduced through the fine holes 33. Electrostatic coating is performed by discharging the powder coating material 40 from a coating gun (not shown) connected to an injector 50 via a hose while stirring the powder coating material 40 to impart fluidity.

When the painting work is finished or when changing the color of the paint, the injector 50 is inserted and removed, the cap 37 is placed on the container neck 34, the lid 20 is removed from the tank body 10, and the lid 20 is removed. Periphery of opening 21 and neck groove 3
6 and remove the container body 30 from the lid body 20,
The empty container body 30 containing the powder paint 40 is disposed of, or a new container body 30 filled with the colored powder paint 40 to be recolored is set in the tank body 10 by the same procedure as described above. do.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is an overall vertical sectional view, and Figure 2 is an enlarged view of part A of the same as above. This powder paint tank is composed of three parts: a tank body, a lid body, and a powder paint storage container body. .

The tank body 10 preferably has an air inlet 1 near the bottom.
1, and the tank body 10 is made of a light metal material such as aluminum or a synthetic resin material, and has a cylindrical shape.

It is formed into a rectangular tube shape, etc.

The lid 20 seals the top opening of the tank body 10, has an opening 21 in its center, and is detachable from the tank body 10.

The powder paint storage container body 30 is formed of a synthetic resin material having appropriate hardness (minimum hardness necessary to have a shape-retaining function as a container body), and has at least a bottom surface 3.
2, a bag-shaped bag having countless fine holes 33 that allows the air introduced into the tank body 10 from the air inlet 11 to pass through, but does not allow the stored powder coating material 40 to pass through (prevents it from falling into the tank body 10). A container main body 31, a neck 34 made of synthetic resin that is integrally provided at the central opening of the upper end of the container main body 31, has a vertical hole 35 in the center part, and has a locking groove 36 on the outer peripheral surface. , and a removable cap 37 that closes the vertical hole 35 of the neck 34.

The main body 31 of the bag-shaped container is formed entirely using porous synthetic resin sheet material 1, or the bottom part is formed from a porous synthetic resin plate and the other parts are formed from ordinary synthetic resin sheet material. It is also possible to integrally join them to form a main body of a bag-like container.

Further, it is also possible to mold the bag-like container main body 31 and the neck portion 34 integrally.

Furthermore, if the main body of the bag-like container is made of a soft synthetic resin sheet material, etc., and cannot be kept in a bag-like shape, hard mesh plates may be provided at appropriate locations inside the container to maintain the bag-like shape as a whole. It is possible.

The number 50 indicates that the main body 3 of the container is inserted through the vertical hole 35 of the neck 34.
1 shows an injector inserted into powder coating material 40 in 1.

〔Effect of the invention〕

According to the present invention, the tank body is made of a synthetic resin material having an appropriate hardness capable of retaining its shape, and has numerous micropores in at least the bottom portion that allow air to pass through but not powder paint. Since the bag-shaped powder paint storage container body with a cap is fixed and replaceable, there is no chance of contaminants such as metal rust from the tank getting mixed into the powder paint. As a result, a high-precision painted surface can be obtained, and the powder coating can be applied to the tank body (equivalent to a conventional tank).
Because the tank is isolated from the water, it is not necessary to make the tank from expensive materials with excellent corrosion resistance, such as stainless steel, as in the past. Since the material can be easily processed and manufactured, it is inexpensive, lightweight, and easy to handle.

7 In addition, when changing the color of the powder paint, you only need to replace it with a separately prepared container filled with powder paint of a different color. Since there is no need to change the color, the color change can be done easily, quickly and reliably, which greatly contributes to improving work efficiency.

[Brief explanation of the drawing]

34・ 35・ 37・ 40・ 8- ・Neck ・Vertical hole ·cap ・Powder paint

Claims (1)

[Claims] 1. It is formed of a bottomed tank body having an air inlet, a removable lid body having an opening for sealing the top opening of the tank body, and a synthetic resin material having a hardness capable of retaining its shape; and a bag-like powder paint storage container body with a cap having numerous micropores that allow air to pass through but not the powder paint through at least the bottom portion, and the powder paint storage container body has its neck portion connected to the lid body. A powder coating tank, which is replaceably placed in the tank body so as to face the opening of the tank.