JPH07116576A - Method for applying mold release agent and device therefor - Google Patents

Abstract

PURPOSE:To rapidly and surely apply a mold release agent on a material such as a core by using this device. CONSTITUTION:A material 14 to be coated with a mold release agent is held above a vessel 11 contg. a liq. mold release agent 15 with the surface 14A on one side turned downward, a mold release agent dispersing member 13 having a shape matching the shape of the surface 14A is dipped in the agent to deposit the agent on the upper surface of the member 13, then the member is raised from the agent surface, the agent is pressed on the surface 14A, and the material is coated with the agent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a release agent coating method and a release agent coating apparatus.

[0002]

2. Description of the Related Art For example, in a foamed molded product such as an instrument panel of an automobile or an air bag door, a core material is placed in advance in a foamed mold that defines a predetermined shape of the molded product, and foamed in the foamed mold. It is obtained by injecting a resin material and forming a foam integrally with the core material.

By the way, in such foam molding, in order to efficiently remove burrs from the obtained foam molded article, a release material is often applied in advance to a surface such as a core material on which burrs are likely to adhere. This release agent is applied by fixing the core material on a holding die formed in a shape that substantially matches the outer surface shape of the core material, with the release agent application planned surface of the core material as the upper surface, and spraying or brushing. It is done by hand.

However, in this method, when the release agent is applied to both surfaces of the core material, the core material must be inverted, and the number of steps is increased, and a new holding mold for that is also required. Becomes Further, when the area of the surface to be coated with the release agent is large, it takes a lot of time to apply the release agent, which makes it difficult to shorten the product manufacturing cycle.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and a release agent is quickly and surely applied to an object to be coated with the release agent such as the core material. It is intended to provide a release agent applying method and a release agent applying apparatus capable of applying a release agent.

[0006]

That is, the present invention is
A release agent coating object is held above a release agent tank containing a liquid release agent so that the release agent application surface on one side is on the lower side, and the upper surface is the release agent on the lower side. After the release agent-adhering member having a shape along the planned application surface is dipped in the release agent and the release agent is attached to the upper surface of the release agent-attaching member, the release agent-attaching member is applied to the release agent liquid. The mold release agent coating method is characterized in that the mold release agent is applied to an object to be coated with the mold release agent by elevating the mold from the surface and pressing it against the planned surface of the mold release agent application.

Further, according to the present invention, a mold release agent tank containing a liquid mold release agent is provided, and a mold release agent application target surface above the mold release agent tank has a release agent application surface on one side facing downward. The upper surface provided through a holding part that holds the release agent and a vertically moving means that moves up and down between the release agent and the release agent application target above the release agent tank. Relates to a mold release agent application device having a mold release agent adhered portion having a shape along the lower surface to be coated with the mold release agent.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a cross-sectional view showing an example of the release agent applying apparatus of the present invention, and FIG. 2 is a cross-sectional view showing a state where the release agent attaching member is raised.

As shown in FIG. 1, a releasing agent applying apparatus 10 of the present invention has a releasing agent tank 11, a holding portion 12 and a releasing agent adhering member 13, and applies a releasing agent such as a core material. The release agent 15 is applied to the object 14 promptly and reliably.

The mold release agent tank 11 is open at the upper side, and an appropriate amount of liquid mold release agent 15 is accommodated inside. A holding portion 12 is provided in the upper opening 16 of the release agent tank 11. The release agent 15 is preferably liquid in a normal state, and known silicones and waxes are used.

The holding portion 12 is composed of a known clamp or the like, and the object 14 to be coated with the release agent is placed above the release agent tank 11 and one of the surfaces 14A and 14B to be coated with the release agent is planned. 14A is held on the liquid surface side. In this embodiment, the holding portion 12 is provided with a positioning guide 17 for the release agent application target 14. The positioning guide 17 is provided on the inner periphery of the upper opening 16 of the release agent tank 11,
It is formed in conformity with the outer surface shape of the release agent application target 14, and reliably positions the release agent application target 14 on the liquid surface of the release agent 15 in the release agent tank 11.

The release agent adhering member 13 is provided in the release agent tank 11 through a vertically moving means 18 such as an air cylinder provided outside the tank, and the release agent 15 is contained in the liquid and the release agent tank. It is configured to be vertically movable between the upper part 11 and the release agent application target 14. The shape of the upper surface 13A of the release agent adhering member 13 is such that the release agent application target 1 arranged on the release agent liquid surface side is
4 corresponds to the outer surface shape of the release agent application scheduled surface 14A. A cloth material 19 is attached to the upper surface 13A along the shape thereof. Therefore, as shown in FIG.
Is raised, the upper surface 13A of the release agent adhering member presses the release agent application scheduled surface 14A along its shape. Then, at that time, the cloth material 19 absorbs the mold release agent 15 and is wet, so that the mold release agent 15 can be surely attached to the mold release agent application scheduled surface 14A. The cloth material 19 may be any material that can hold the release material 15.
It is not limited to cloth materials.

Next, a method for applying a release agent to an object to be applied with the release agent using the device 10 of the present invention will be described with reference to FIGS. 1 and 2. First, a predetermined release agent application target 14 such as a core material is set on the holding portion 12. The release agent application target 14 is formed in a substantially U-shaped cross section, and has release agent application scheduled surfaces 14A and 14B on a part of the inner surface and the outer surface thereof.

On the other hand, the release agent attaching member 13 is used as the release agent tank 1
The mold release agent 15 in 1 is soaked that the mold release agent 15 is attached to the upper surface thereof. The holding unit 12 positions and holds the release agent application target 14 above the liquid surface of the release agent 15 in the release agent tank 11, and moves up and down.
Thus, the release agent attaching member 13 is lifted from the liquid. Then, the liquid level is further raised to the upper surface 13
A is pressed along the planned application surface 14A of the release agent application target 14. As a result, the release agent 15 adhered to the upper surface 13A of the release agent attaching member 13 in the liquid is applied to the intended surface 14A of the release agent application target 14 all over.

While the release agent 15 is attached to the release agent application surface 14A in this manner, a coating means such as a brush or a spray is applied to the other release agent application surface 14B. Thus, the release agent 15 is applied. Therefore, the release agent can be surely applied to the release agent application target 14 in an extremely short time, and the release agent application surface 1
The amount of the release agent 15 applied to 4A can be appropriately adjusted depending on the temperature and viscosity of the release agent 15 in the tank 11 and the rising and pressing time of the release agent adhering member 13.

[0016]

As shown and described above, according to the method and apparatus of the present invention, the release agent can be surely applied to one release agent application surface at once. At the same time, by manually applying the release agent to the other surface to be applied, the processing can be easily completed in a short time. Therefore, there are great advantages such as rationalizing the mold release agent coating step and remarkably improving workability and productivity.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a release agent coating device of the present invention.

FIG. 2 is a cross-sectional view showing a state where the release agent adhering member is raised.

[Explanation of symbols]

 10 Release Agent Coating Device 11 Release Agent Tank 12 Holding Section 13 Release Agent Adhesive Member 14 Release Agent Application Target 14A Release Agent Application Plane 15 Release Agent 18 Vertical Moving Means

Claims (3)

[Claims] 1. A release agent application target is held above a release agent tank containing a liquid release agent such that one side of the release agent application scheduled surface is the lower side, and the upper surface is the lower side. After the release agent-adhering member having a shape along the release agent application scheduled surface on the side is soaked in the release agent and the release agent is attached to the upper surface of the release agent-attaching member, the release agent-attaching member is attached. A method of applying a release agent, comprising applying the release agent to an object to be coated with the release agent by elevating it from the liquid surface of the release agent and pressing it against the surface to be coated with the release agent. 2. The mold release agent according to claim 1, wherein the mold release agent is applied to the upper surface of the mold release agent application target by a coating means such as a brush or a spray when the mold release agent applying member applies the mold release agent. A method for applying a release agent, which comprises applying. 3. A mold release agent tank containing a liquid mold release agent, and a mold release agent application target surface above the mold release agent tank on one side is a lower side. A holding part that holds
The planned release agent coating surface with the upper surface being the lower surface provided in the release agent tank through the vertically moving means for vertically moving between the release agent and the object to be coated with the release agent above the release agent tank. A release agent applying device having a release agent adhering portion having a shape along the line.