JPH06218745A - Mold for resin foam molding - Google Patents

Abstract

PURPOSE:To simply set a skin material to a lower mold consisting of a fixed mold and a movable mold in a desired close contact state. CONSTITUTION:An upper mold 21 is upwardly revolved to be opened and a movable mold 22b is downwardly opened. After a skin material 21 is set to a fixed mold 22a and a movable mold 31, the skin material 31 is allowed to conform to the fixed mold 22a and the movable mold 22b while the movable mold 22b is pushed by the hand to be returned in a mold clamping direction to be set to a close contact state. At this time, the movable mold 22b is pushed to the spring support member 25 provided between a stand 10 and the bottom surface of the movable mold 22b so as to be subjected to mold clamping and, therefore, the work bringing the skin material 31 into close contact with the lower mold can be simply performed using both hands. As a result, a resin foamed molded product having a good shape can be obtained in a foam molding process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin foam molding die, and more particularly to improvement of a resin foam molding die.

[0002]

2. Description of the Related Art Conventionally, this type of resin foam molding die has been
For example, it has a fixed mold and a movable mold that are matched in the middle portion on the left and right, and the movable mold is divided into parts by rotating downward about the lower end of the mold matching surface with the fixed mold. Together with the fixed mold, the lower mold is supported substantially horizontally above the base by the pillars that are erected on the base, and the fixed mold is superposed on the upper surface of the lower mold and directed upward with the upper end of the fixed mold as the center. The upper mold is divided by rotating the movable mold and is clamped to the movable mold by a clamp jig attached to the side surface of the movable mold so that the upper mold can be released. The lower mold is opened and closed by opening and closing the movable mold. There is a type in which the skin material that constitutes a part of the product is attached. In this resin foam molding die, the upper die is opened, and the movable die is rotated downward to open the die from the fixed die, and the skin material is set on the fixed die and the movable die. While moving the mold with one hand to close the mold, the other hand was made to fit the skin material to the fixed mold and the movable mold, so that the skin material was set in close contact with the lower mold.

[0003]

However, when the skin material is set on the lower mold by the above method, one hand needs to support the movable mold. Therefore, the work of closely adhering the skin material to the lower mold is performed with one hand. It becomes necessary to set the skin material in a desired state. Therefore, there is a problem that the final resin foam-molded product becomes a defective product. The present invention is intended to solve the above problems, and provides a resin foam molding die capable of easily setting a skin material to a lower mold of a resin foam molding die in a desired close contact state. With the goal.

[0004]

In order to achieve the above-mentioned object, a structural feature of the present invention is that in a resin foam molding die of the above type, an elastic support member is provided between the base and the bottom surface of the movable die. There is something.

[0005]

In the present invention constructed as described above, the upper die is rotated upward to open it, and the movable die is rotated downward to open it. Then, after inserting and setting the skin material for resin foam molding into the fixed mold and the movable mold, while returning the movable mold to the mold closing position, the skin material is manually adapted to the fixed mold and the movable mold to bring them into a close contact state. . Since the movable mold is pushed by the elastic support member provided between the base and the bottom of the movable mold to close the mold, the work of fitting the skin material to the lower mold is easy with both hands. Can be done.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a mold for resin foam molding according to the present invention (hereinafter,
(Hereinafter referred to as a mold) is schematically shown by a front view. This mold includes a mold body 20 supported by a column 11 standing upright on a table 10. The mold body 20 is
It is a medium-sized mold that weighs 100 kg or less and can be manually moved.
And a lower die 22 including a fixed die 22a and a movable die 22b. The fixed die 22a of the lower die 22 is fixedly attached to the column 11 on the left side surface. Movable type 2
2b is a fixed mold 22 that is rotatable around the lower end by a hinge L1 at the lower end of the mating surface K1 with the fixed mold 22a.
It is attached to a. Fixed mold 22a and movable mold 22
In b, a recess V1 is formed which is filled with resin and defines the outer shape of the resin molded product.

A clamp member 23 is attached to the right side wall of the movable die 22b, as shown in FIG. The clamp member 23 includes two support members 2 protruding from the right side wall surface.
A handle 23b rotatably attached in the vertical direction between 3a, a shaft 23c vertically and rotatably attached to the handle 23b, and an inverted U-shaped hook 23d attached upward to the shaft 23c. Is provided. Also,
As shown in FIG. 2, a long manual stopper 24 is rotatably attached near the right end of the front surface of the movable die 22b. The manual stopper 24 has a recess 24a for engagement on the lower side near the left end. A protrusion 22a1 for locking the manual stopper 24 in the recess 24a is provided at the center of the front surface of the fixed mold 22a.

A spring support member 25 is provided in connection with the base 10 at a position near the right end of the bottom surface of the movable die 22b. The support strength of the spring support member 25 is set so that the movable die 22b can be supported when the movable die is closed, and the movable die 22b can be operated with one hand when the movable die is opened.

The upper die 21 is attached to the fixed die 22a at the left end of the mating surface K2 with the lower die 22 by a hinge L2 so as to be rotatable upward with the left end as the center. A convex portion V2 that defines the inner shape of the resin molded product is provided at a position of the upper die 21 corresponding to the concave portion V1 of the lower die 22. The upper mold 21 is in a state of being in close contact with the lower mold 22 on the mold matching surface K2, and the hook 23d of the clamp member 23 provided on the right side wall of the lower mold 22 is engaged with the locking protrusion 21a provided on the right side wall. The lower mold 22 is fixed by rotating 23b downward and locking it.

The operation of the mold configured as above will be described. First, the handle 23b of the clamp 23 is rotated upward to release the locked state of the die, and the upper die 21 is hinged L2.
Rotate upward about the center to open. Next, while pressing the upper surface of the movable die 22b with a hand, the movable die 22b is rotated about the hinge L1 and moved downward. Then, the manual stopper 24
Of the movable mold 22 by engaging the concave portion 24a of the movable projection 22a1 with the projection 22a1.
Hold b in a tilted state. Then, a mold release agent is applied around the resin contact portions of the upper mold 21 and the lower mold 22, and a skin material 31 made of synthetic resin such as soft vinyl chloride is set in the lower mold 22. Then, the stopper 24 is removed, and the movable mold 2
While pressing 2b lightly by hand, attach the skin material 31 to the fixed mold 22a.
The mold of the movable mold 22b is closed while conforming to the movable mold 22b. At this time, since the movable die 22b is pushed by the spring support member 25 and moves to the die closing position almost automatically, it is not necessary to push the movable die by hand, and the skin material 31 can be fitted to the die. It can be done with both hands. Therefore, the skin material 31 is always set in the lower mold 22 in a desired close contact state.

As described above, the movable die 31 is closed, and the core material 32 for reinforcing the molded product is set in the lower die in which the skin material 31 is set in a desired state, and the upper die is set. 21
Close the mold. In this state, a foaming raw material is injected into the space S of the mold from an injection port (not shown), and the foaming raw material is foamed by heating or the like to be integrated with the skin material 31 or the like, thereby forming a resin foam molded article. Is manufactured. As described above, since the skin material is set in the lower mold 22 so as to be in close contact with it in a desired state, defective products do not occur during foam molding, and the final resin foam molding is always in a good shape. You can get the goods.

[0012]

As described above, according to the present invention, since the skin material can be set in the lower mold in a close contact state, a resin foam molded article having a good shape is always obtained in the subsequent resin foam molding step. be able to.

[Brief description of drawings]

FIG. 1 is a front view schematically showing a mold according to an embodiment of the present invention.

FIG. 2 is a front view showing a stopper provided on the front surface of a lower mold of the mold.

[Explanation of symbols]

10; Stand, 11; Support, 20; Mold for resin foam molding, 2
1; upper mold, 22; lower mold, 22a; fixed mold, 22b; movable mold, 23; clamp member, 24; stopper, 25; spring support member, 31; skin material.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B29L 9:00 4F

Claims (1)

[Claims] 1. A fixed mold and a movable mold, which are matched at the left and right intermediate parts, are provided, and the movable mold rotates downward about a lower end of a mold matching surface with the fixed mold. A lower mold which is divided into molds and which is supported substantially horizontally above the base by a pillar which is erected on the base, and a top end of the fixed mold which is overlapped with the upper surface of the lower mold. The mold is divided by rotating upwards about
A clamp jig attached to a side surface of the movable mold is provided with an upper mold releasably fastened to the movable mold, and a part of a product is formed in the lower mold when the movable mold is closed. A mold for resin foam molding, wherein an elastic support member is provided between the base and the bottom surface of the movable mold, in the mold for resin foam molding in which a skin material is brought into close contact.