JPH0293192A - Fluid heating feeding hose in fluid coating device - Google Patents

Abstract

PURPOSE:To facilitate the replacement of pipes by installing a pipe body in which the pipe is enclosed by a pressure-resistive film and a strip-shaped heat insulating body in which a plate-shaped flexible heater having the area nearly equal to the outer peripheral surface is enclosed by a heat insulating material and a cover. CONSTITUTION:A fluid heating feeding hose is constituted from a pipe body A which is prepared by protecting a pipe 1 by a pressure-resistive film 2 and a heat insulating body B which is prepared by joining a planary flexible heater 3 having the area nearly equal to the outer peripheral surface of the pipe body A, heat insulating body 4, and a cover 5. When clogging is generated during use, the pipe body A is exposed by changing the heat insulating body B into flat plate form, and the defective pipe body A is removed by turning a nut 7, and a new pipe is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fluid heating supply hose for supplying a fluid while heating it in a fluid (eg, thermoplastic resin adhesive) applicator.

0 Prior Art As shown in FIG. 6, there is a known fluid heating supply hose which is formed by wrapping and integrating a tubular heater 12 and a cylindrical heat insulating material 13 on the outside of piping 11 made of a Teflon tube or other flexible synthetic resin tube. It is.

O Problems with the Prior Art In this type of fluid heating supply hose, when used for a long time, degraded and carbonized fluid, which is the fluid to be supplied, adheres to the piping. As a result, the supply pressure may change, the coating condition from the coating nozzle may become poor due to a change in the fluid that has adhered and deteriorated, or the hose and coating nozzle may become clogged, making it difficult for the fluid to be supplied smoothly. There are problems such as not having one.

OMeans for solving the above-mentioned problems In order to solve the above-mentioned problems, the present invention aims to facilitate the replacement of piping, and includes a piping body in which the piping is surrounded by a pressure-resistant coating. , a band-shaped heating insulating body formed by surrounding a plate-shaped flexible heater having an area approximately equal to the outer peripheral surface of the piping body with a heat insulating material and a cover, and the heating insulating body deformed into a cylindrical shape. Configure the hose.

O Example The following description will be made based on the embodiments shown in the drawings.

Referring to FIGS. 1 to 4, there is shown a pipe body A formed by protecting a pipe (Teflon tube or other heat-resistant flexible synthetic resin sleeve) 1 with a pressure-resistant coating (reticular stainless plate) 2, and the pipe. A fluid heating supply hose is constituted by a planar flexible heater 3 having an area approximately equal to the outer circumferential surface of the main body, a heat insulator B formed by adhering a heat insulating material (for example, silicone sponge) 4 and a cover 5 to each other. .

A nut 7 passing through the communication hole 6 is screwed onto the end of the piping body A, and is connected to the adjacent piping body A and the fluid supply device 8. It can be attached to and detached from the coating nozzle device 9.

The heating insulation member B is wrapped around the piping body A, and as shown in FIGS. 1 and 2, the piping body A is integrated with the heating insulation member B, and used in the same manner as the conventional heated hose. As shown in FIG. 4, if a Velcro tape 10 is attached to the edge of the cover 5, a flat strip-shaped heat insulating body B can be attached.
This is convenient for maintaining the shape of a tube.

If clogging occurs during use, replace the heating insulator B with a third
The pipe body A is exposed by forming it into a flat plate shape as shown in FIGS. 4 and 4, and the defective pipe body A is removed by rotating the nut 7 and replaced with a new pipe.

Effects of the Invention In the present invention, the fluid heating supply hose is configured to have a piping body and a heating insulating body, so if deteriorated fluid adheres to the inner surface of the piping, only the piping body can be replaced. Maintenance costs can be reduced. In addition, since the heat insulating body simply changes its shape between flat and cylindrical, it is easy to operate, and there is no need to attach or detach the heater connection parts, which is required when replacing the entire unit, which greatly reduces maintenance work. It's easy.

[Brief explanation of the drawing]

1 and 2 show the state in which a fluid heating supply hose according to an embodiment of the present invention is used, with FIG. 1 being a longitudinal sectional view and FIG. 2 being a side view. 3 and 4 also show the replacement work, with FIG. 3 being a longitudinal sectional view and FIG. 4 being a side view. FIG. 5 is a schematic diagram of the fluid application device. FIG. 6 is a longitudinal cross-sectional view of a prior art fluid heating supply hose. A...Piping body B...Heating insulator 1...Piping 3...Heater 4...Insulating material 5... ·cover

Claims (1)

[Claims] A pipe body formed by surrounding the pipe with a pressure-resistant coating, and a band-shaped heating insulator formed by surrounding a plate-shaped flexible heater having an area approximately equal to the outer peripheral surface of the pipe body with a heat insulating material and a cover, A fluid heating supply hose for a fluid application device, characterized in that the hose is constructed by being wrapped in a heating heat insulator deformed into a cylindrical shape.