JPH05318538A - Molding apparatus - Google Patents

Abstract

PURPOSE:To enhance working efficiency and to enable safe replacing work at the time of the replacement of a cavity bush. CONSTITUTION:A movable mold 10 is moved in a horizontal direction with respect to a fixed mold 20 to perform mold register and mold release and a molding cavity 100 is formed to the cavity bush 23 provided to the fixed mold 20 in a freely detachable manner. Receiving recessed parts 25, 25 are provided under the cavity bush 23 on the side of the mating surface 24 of the fixed mold 20 and slide mechanisms 30, 30 for moving the cavity bush in a slidable manner at the time of the attachment and detachment of the cavity bush are provided in the receiving recessed parts 25, 25 and received in the receiving recessed parts 25, 25 at the time of non-use and allowed to protrude from the receiving recessed parts 25, 25 at the time of use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding device for molding a resin.

[0002]

2. Description of the Related Art A molding apparatus includes a main body (not shown).
Cavity formed by these two molds (a space for molding a molded product) by using a fixed mold fixed to the mold and a moving mold that moves in the horizontal direction with respect to the apparatus main body.
In some cases, a molded product is manufactured by press-fitting a heated resin. Further, in some of the molding apparatuses, a replaceable cavity bush is provided in at least one of the fixed mold and the movable mold. This molding apparatus can manufacture various kinds of molded products by replacing the cavity bush.

[0003]

By the way, in this molding apparatus, when the cavity bush is replaced, an operator manually replaces the cavity bush. However, since the cavity bush is heavy, it takes a lot of time to move it when exchanging it, resulting in poor work efficiency.

Further, if the cavity bush is dropped at the time of replacement, a danger may occur to an operator.

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a molding apparatus which can improve the work efficiency when replacing the cavity bush and enables a safe replacement work.

[0006]

In order to achieve the object of the present invention, the moving side mold is moved in the horizontal direction with respect to the fixed side mold to perform mold matching and release, and In a molding device that forms a cavity for molding by a cavity bush that is detachably provided in at least one of the fixed side molds, on the mating surface side of the mold on which the cavity bush is provided and on the lower side of the cavity bush. In addition to providing a storage recess, a slide mechanism for slidably moving the cavity bush when the cavity bush is attached or removed is installed in the storage recess, and the slide mechanism is stored in the storage recess when the slide mechanism is not used and stored when used. Project from the recess.

[0007]

With this structure, when replacing the cavity bush, the operator projects the slide mechanism housed in the housing recess. At this time, the slide mechanism is projected from the accommodating concave portion provided on the mating surface side of the mold provided with the cavity bush and on the lower side of the cavity bush. The cavity bush can be slid so that the cavity bush can be attached and removed efficiently and safely.

[0008]

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

FIG. 1 is a sectional view showing an embodiment of the present invention. This molding apparatus includes a moving side mold 10 and a fixed side mold 20.

The moving die 10 is moved in the horizontal direction A with respect to the apparatus main body (not shown). As a result, mold matching and mold release are performed. The movable die 10 is provided with a protrusion pin 11 in the horizontal direction A, and the protrusion pin 11 allows the molded product in the cavity 100 to be taken out.

The stationary mold 20 is fixed to the main body of the apparatus (not shown). The fixed mold 20 has a sprue 21 into which a liquid resin is press-fitted, and a gate (not shown) for passing the resin in the sprue 21 into the cavity 100.
And are provided.

An accommodating portion 22 is provided on the mating surface 24 side of the fixed mold 20, and a cavity bush 23 is detachably attached to the accommodating portion 22. The cavity bush 23 is for forming the cavity 100 for molding at the time of mold matching, and by exchanging the cavity bush 23, various kinds of molded products are manufactured.

As shown in FIGS. 2 and 3, the fixed mold 20 is provided with storage recesses 25, 25. Storage recess 2
5 and 25 are provided on the lower surface of the storage section 22 and on the mating surface 24.

Steps 26, 26 are formed in the storage recesses 25, 25.
Is provided, and the step portions 26A, 2 of the steps 26, 26 are provided.
6A intersects the mating surface 24 vertically.

The slide mechanism 3 is provided in the storage recesses 25, 25.
0 and 30 are provided. Slide mechanism 30, 30
Can be stored in the storage recesses 25, 25. The slide mechanisms 30 and 30 are composed of rod-shaped slide portions 31 and 31 and support portions 32 and 32.

One end side of the slide portions 31, 31 is rotatably movable in a horizontal plane by the shafts 31A, 31A.
5, 25, and the other end is attached to one end of the support 32, 32 by shafts 31B, 31B. The shafts 31B and 31B enable the support portions 32 and 32 to rotate in the direction of arrow B in the vertical plane. The other ends of the support portions 32, 32 are cut in a V shape and are locked to the step portions 26A, 26A.

The slide mechanism 30 of such a molding apparatus,
30 is used as follows.

Moving side mold 10 and fixed side mold 2 of the molding apparatus
With 0, when the molded product is manufactured, that is, when the slide mechanisms 30 and 30 are not used, the support portions 32 and 3 are
2 is closed, and as shown in FIG.
It is stored in the storage recesses 25, 25 together with 1.

When the cavity bush 23 is replaced, the operator slides the slide portions 31, 31 of the slide mechanisms 30, 30.
Is rotated to project from the storage recesses 25, 25. Further, the operator opens the support parts 32, 32, and the support parts 32,
The other end of the C-shape of 32 is locked to the step portions 26A and 26A. As a result, as shown in FIG.
The slide parts 31, 31 of 0, 30 are in a state of protruding from the lower side of the storage part 22, and the support parts 32, 32 are locked by the step parts 26A, 26A.
Is fixed.

After this, the operator pushes the cavity bush 2
3 is slid on the slide portions 31 and 31 of the slide mechanisms 30 and 30 and pulled out to perform the replacement work.

As described above, according to this embodiment, when the cavity bush 23 is replaced, the operator can slide the slide mechanism 3
Since the cavity bush 23 can be slid using 0 and 30, the heavy cavity bush 23 can be replaced easily and safely.

In this embodiment, the slide mechanism 30
Although the slide portion 31 of the
Is not limited to this, for example, in order to make it more slippery on the surface in contact with the cavity bush 23,
You may make it the structure which attached the roller etc.

Further, in this embodiment, the cavity bush 23 is provided on the mating surface 24 side of the fixed mold 20, but the cavity bush provided on the mating surface side of the moving mold 10 also has this cavity bush 23. The invention is applicable.

[0024]

As described above, according to the present invention,
When exchanging the cavity bush, an operator can perform the exchanging operation by sliding the cavity bush by using the slide mechanism of the storage recess, so that the exchanging operation of the cavity bush can be efficiently and safely performed.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a view of the fixed side mold of FIG. 1 seen from a mating surface side.

FIG. 3 is a diagram showing a slide mechanism in use.

[Explanation of symbols]

 10 Moving-side mold 20 Fixed-side mold 23 Cavity bush 24 Mating surface 25 Storage recess 30 Sliding mechanism 100 Cavity

Claims (1)

[Claims] 1. A cavity that is detachably provided in at least one of the moving side mold and the fixed side mold by moving the moving side mold horizontally with respect to the fixed side mold to perform mold matching and mold release. In a molding device for forming a cavity for molding by a bush, a storage recess is provided on the mating surface side of the mold on which the cavity bush is provided and below the cavity bush, and when the cavity bush is attached or detached. A slide mechanism for slidably moving the cavity bush is provided in the storage recess, the slide mechanism is stored in the storage recess when the slide mechanism is not used, and is projected from the storage recess when used. Characterizing molding equipment.