JP2975918B2 - Molding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding apparatus, and more particularly to an apparatus for adjusting a clearance between upper and lower molds before injection of a molding resin to improve the overall thickness and local thickness. Can be adjusted easily,
A product having a desired thickness can be stably obtained.

[0002]

2. Description of the Related Art For example, artificial marble counters used in system kitchen equipment have a large and long plate-like shape with a total length of about 3 to 4 m and a width of about 0.6 to 0.9 m depending on the layout of the kitchen equipment. It has a form.

Conventionally, in such a plate-shaped product molding apparatus, as shown in FIG. 7, an elastically deformable gasket c, c serving as an interposed member between an upper mold a and a lower mold b is provided. The two molds a and b are clamped by C-type clamps (vices vise) d and d, and the gaskets c and c are compressed and elastically deformed. After adjusting the clearance t according to the thickness of the product, a molding resin made of an appropriate mixed resin composition, for example, a matrix resin such as an unsaturated polyester resin or an acrylic resin, is injected through an injection port e opened on the upper mold a side. There is a configuration having a configuration in which a material W is injected between the upper and lower molds a and b, and is filled while performing air bleeding from the air bleeding port f to be cured and molded.

[0004]

However, in such a conventional plate-shaped product molding apparatus, the upper and lower dies a and b are clamped by C-shaped clamps d and d. In addition, a tightening error due to the strength of the tightening force easily occurs in each of the C-shaped clamps d, and it is difficult to adjust the clearance t, so that a product having a stable plate thickness cannot be obtained.

Conventionally, as shown in FIG. 8, a lower mold b in which a cavity space g having a depth t corresponding to the thickness of a product is formed, and a fixed mold a is attached to the lower mold b. In the case of the structure having the mold clamped by the mold clamps d, d, the thickness of the product is equal to the depth t of the cavity space g of the lower mold b.
Therefore, it is necessary to prepare various kinds of lower molds b according to the thickness of the product, which not only increases the molding cost but also clamps the molds with the C-type clamps d and d. If the upper and lower molds a and b are once deformed such as warpage, it is not easy to correct the deformation, and it is also easy to adjust the thickness of the product as a whole or locally. Can not.

SUMMARY OF THE INVENTION An object of the present invention is to provide a molding apparatus which can easily adjust the thickness of a whole product and a local plate, and can stably obtain a product having a desired thickness.

[0007]

According to a first aspect of the present invention, there is provided a molding apparatus comprising: an upper mold fixedly supported on a base at a predetermined height; A lower mold that is disposed below the upper mold and is clamped, movable means for operating the lower mold so as to be able to move up and down, the lower mold and the base that are clamped by the movable means together formed by and a resiliently deformable intermediate member which is interposed so that a predetermined clearance is maintained between the upper mold of the upper, in clamping the raised position by the front Symbol movable means the lower die Positioning adjustment means that is adjusted so as to maintain a clearance corresponding to the thickness of the product and is supported on the base;
The setting adjustment means is inserted and arranged on the lower surface side of the lower mold.
Thickness adjustment block.
By adjusting the height of the tool, the lower mold is adjusted according to the thickness of the product.
It is characterized in that it is adjusted so that the clearance is maintained .

According to a second aspect of the present invention , a predetermined height is provided on the base.
The upper die is fixedly supported by, below the upper mold
Lower mold that is placed and clamped, and this lower mold can be raised and lowered
The movable means to operate effectively and the mold clamping by this movable means
Between the lower mold and the upper mold on the base.
Resiliently deformable to maintain clearance
And a movable member.
Is adjustable in stroke to support the lower mold so that it can move up and down.
While the lower mold is movable
Clear according to the thickness of the product at the mold clamping position by means
Adjusted to maintain the lance and supported on the base
Positioning adjustment means,
Is screwed to the tip of the rod of the drive cylinder of the movable means.
Having a thickness adjusting bracket provided in combination with the thickness adjusting bracket.
Clear the lower mold according to the thickness of the product by adjusting the rotation of
The lance can be finely adjusted so as to be maintained .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings shown in FIGS. 1 to 6. FIGS. 1 to 5 show a first embodiment of a molding apparatus according to the present invention. As shown in FIG. 1, reference numeral A denotes a long rectangular artificial marble counter having a desired thickness, which is used for, for example, a system kitchen facility as a plate-like product.

The artificial marble counter A is molded by a molding apparatus 1 as shown in FIG. 2, and the molding apparatus 1 is fixedly mounted on a base 2 and supports 3 and 3 on the base 2. An upper mold 4 supported by the upper mold 4, a lower mold 5 disposed on the base 2 so as to face the lower surface 4 a of the upper mold 4, and a lower mold 5 interposed between the upper and lower molds 4, 5. Elastically deformable gaskets 6A, 6B as intervening members that maintain clearance t
And movable means including drive cylinders 7A and 7B such as hydraulic cylinders for moving the lower mold 5 so as to be able to move up and down in the vertical direction and to tilt in the front and rear and left and right directions.

The lower mold 5 is provided with height-adjustable thickness-adjusting blocks 8A as positioning adjustment means.
At 8B, the upper and lower dies 4, 5 are positioned and held on the base 2, and the upper and lower dies 4, 5 are clamped.
Is adjusted according to the plate thickness of the product A, and then a molding resin made of an appropriate mixed resin composition, for example, a matrix resin such as an unsaturated polyester resin or an acrylic resin is injected through an injection port 41 opened on the upper mold 4 side. The artificial marble counter A as shown in FIG. 1 is hardened and molded by injecting the material W and filling while performing air bleeding from the air bleeding port 42 opened to the upper mold 4 side. .

FIG. 3 shows drive cylinders 7A and 7B as movable means for moving the lower mold 5 up and down and tiltable in front and rear and right and left directions, and a thickness adjusting block 8A as positioning adjustment means. 8B shows an arrangement state of the driving cylinders 8B, and the driving cylinders 7A and 7B and the thickness adjusting blocks 8A and 8B are scattered at a plurality of positions including at least four corners of the lower mold 5. Things.

In this case, in the case where the upper and lower molds 4 and 5 are circular, the concentric circles are scattered at a plurality of parts including four parts on a circumference obtained by dividing the concentric circle into four parts. .

Thus, the upper and lower dies 4, 5 are transferred to the product A
Fig. 4
As shown in the figure, the lower mold 5 is connected to each of the drive cylinders 7A, 7A.
After the thickness adjustment blocks 8A and 8B are raised to a position where they can be inserted at B, as shown in FIG. 5, the respective adjustment blocks 8A and 8B are inserted and arranged on the lower surface side of the lower mold 5,
Again, the lower mold 5 is lowered by each of the drive cylinders 7A and 7B, and is placed and held on each of the adjusting blocks 8A and 8B. As a result, as shown in FIG. By adjusting the height of the adjusting blocks 8A and 8B, the clearance t is adjusted according to the thickness of the product A.

By the way, in the above embodiment,
Although the hydraulic cylinders 7A and 7B have been described as the drive cylinders constituting the movable mechanism of the lower mold 5, for example, an air cylinder or an air bag may be used.

FIG. 6 shows a second embodiment according to the present invention, in which a rod 11 of each of drive cylinders 10A and 10B as a movable mechanism for raising and lowering and tilting a lower mold 5 is shown.
Stroke lengths of the rods 11A and 11B are set so as to correspond to the desired thickness of the product A.
Adjustment brackets 12A and 12B are provided at the tip of 11B, and the thickness of each of the adjustment brackets 12A and 12B is adjusted, or each of the adjustment brackets 12A and 12B is connected to each of the rods 11A and 1B.
1B is screwed to the tip of the nut 1B in a nut-type manner, and is rotated and adjusted for positioning and holding, so that the clearance t between the upper and lower molds 4, 5 can be finely adjusted according to the thickness of the product A. It has a configuration consisting of

That is, the molding apparatus 1 according to the present invention comprises:
By adopting the above configuration, the lower mold 5 is opposed to the lower surface 4a of the upper mold 4 fixedly arranged on the base 2,
An elastically deformable gasket 6, 6 for maintaining a clearance t is interposed between the upper and lower molds 4, 5, and the lower mold 5 is vertically moved by the movable mechanisms 7A, 7B and tilted in the front, rear, left and right directions. By compressing and elastically deforming the gaskets 6 and 6 and positioning and holding them on the base 2, the clearance between the upper and lower molds 4 and 5 is adjusted and maintained to a clearance t according to the desired thickness of the product A. To become
The adjustment of the entire product and the local thickness can be easily performed, and once the clearance t is adjusted according to the thickness of the product A, the product A having a desired thickness can be stably obtained.

In each of the above-described embodiments, it is needless to say that the upper and lower dies 4, 5 may be heated and pressed as required during molding.

[0019]

As is apparent from the above description, the present invention provides an upper mold fixedly supported on a base at a predetermined height, and a mold disposed below the upper mold and clamped. A lower mold, movable means for moving the lower mold in a vertically movable manner, and a clearance maintained between the lower mold and the upper mold on the base, which are clamped by the movable means. And an elastically deformable intervening member interposed so that the lower mold is adjusted so that a clearance corresponding to the thickness of the product is maintained at a mold clamping position by the movable means, and Since the positioning adjustment means for supporting on the base is provided, the adjustment of the entire product and the local thickness can be easily performed, and the clearance is once adjusted according to the thickness of the product. And it is possible to obtain a product of the desired thickness stably. That.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a plate-like product obtained by a molding apparatus according to the present invention.

FIG. 2 is a sectional view of the molding apparatus according to the first embodiment in a mold-clamped state.

FIG. 3 is a schematic plan view showing an arrangement state of movable means and positioning adjustment means of a lower mold in the molding apparatus.

FIG. 4 is an explanatory view showing a mold clamping step of the molding apparatus.

FIG. 5 is an explanatory view showing a mold clamping step of the molding apparatus.

FIG. 6 is a sectional view showing a second embodiment of the molding apparatus according to the present invention.

FIG. 7 is a sectional view showing a conventional plate-shaped product molding apparatus.

FIG. 8 is a cross-sectional view showing another example of the conventional plate-shaped product molding apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Molding device 4 ... Upper mold 4a ... Lower surface, 5 ... Lower mold 6, 6 ... Interposed member (gasket), 7A, 7B ... Movable means (drive cylinder) ), 8A, 8B ... positioning adjustment means (thickness adjustment block), 10A, 10B ... movable means (drive cylinder), 11A, 11B ... rod, 12A, 12B ... positioning adjustment means ( Thickness adjustment bracket), t: clearance, A: plate-like product (artificial marble counter).

Claims (2)

(57) [Claims] An upper mold fixedly supported on a base at a predetermined height, a lower mold disposed below the upper mold and clamped, and the lower mold can be raised and lowered. And an elastically deformable interposition that is interposed between the lower mold and the upper mold on the base so as to maintain a predetermined clearance. and and a member
Together comprising, adjusting the lower mold as before Symbol clearance corresponding to the thickness of the product on clamping the raised position by the movable means is maintained
And positioning adjustment means for supporting the base on the base . The positioning adjustment means is inserted and arranged on the lower surface of the lower mold.
It consists thickness regulation blocks location, by the height adjustment of the thickness adjusting blocks, the lower tool
The clearance according to the thickness of the product is maintained
A molding device characterized by being adjusted . 2. An apparatus fixedly supported on a base at a predetermined height.
The mold and the lower part which is located below this upper mold and clamped
Mold and movable means for operating this lower mold so that it can be raised and lowered
And the lower mold and the base to be clamped by the movable means.
Predetermined clearance is maintained between the upper mold on the table
And an elastically deformable interposed member
And a movable means for supporting the lower mold so as to be able to move up and down.
The lower mold is formed by the movable cylinder while the lower mold is closed by the movable means.
Is adjusted so that the clearance according to the thickness of the
And positioning adjustment means for supporting the movable means on the base.
With a thickness adjustment bracket screwed to the tip of the rod
Then, the lower die is moved to the plate of the product by the rotation adjustment of the thickness adjusting bracket.
Fine adjustment to maintain clearance according to thickness
Forming type apparatus characterized by being a.