JPS5812127B2 - Formwork equipment for molding concrete materials - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a formwork device for forming concrete flat plates or blocks in which materials of different compositions are laminated, and the object thereof is to immediately remove the product by inverting it after forming. It is.

Conventionally, in order to feed concrete materials of different compositions into a mold, a concrete material with a high water-cement ratio is supplied as a surface layer at the bottom of the mold, and a concrete material with a low water-cement ratio close to 0 slump is supplied afterward. Materials were supplied as the back layer, laminated, and molded.

At this time, the concrete material supplied as the surface layer is spread uniformly within the mold, and then the back layer is supplied on top of it, but it takes a lot of time and effort to make the surface layer uniform, and it is difficult to do so. The layer may become uneven, and the back layer may be exposed in thinner areas.

In addition, since the surface layer with a high water-to-cement ratio is cured with the surface layer facing down, there is a risk of efflorescence occurring on the surface.

The present invention aims to uniformly produce such laminated concrete products, and by uniformly scraping the bottom surface of the feeding surface for each feeding material, the back layer is not exposed to the surface layer. Furthermore, by inverting and removing the mold after molding, the surface layer is on top, so excess water will not penetrate into the back layer and cause efflorescence on the surface.

Furthermore, since the mold corresponding to the form of the product is removably attached to the formwork, concrete products of various shapes can be produced with the same model.

In this case, no matter which type of formwork is used, the material feeding surface and mold removal surface can be located at the same position.

To explain the embodiment with reference to the drawings, Fig. 1 is a partially cutaway front view of one example, in which 1 is a formwork, with support plates 2 and 3 protruding from the top and bottom of the inside thereof, and supporting plates 2 and 3 attached to the top and bottom of the form 4. The supporting pieces 5 and 6 that were made are fixed.

This type 4 can be replaced with other sizes and types at any time.

Rotating shafts 7 and 8 are attached to both sides of the formwork 1, and the formwork 1 can be rotated by 180° by means of a rotating gear 9.

Further, a vibrating body 10 is attached to the other side, and by rotating it with a pulley 11, vibration is applied to the formwork 1.

This pulley 11 is loosely fitted to the rotating shaft 8.
1' and is rotated by a motor P.

The vibrating body 10 has, for example, an eccentric weight inside, which is packed with oil.

Type 4 is open at the top, has an elevating plate 12 inside, and has a cylinder 13 attached to the lower surface of the type, and fixes the upper end of the piston rod 14 to the lower surface of the elevating plate 12. .

Further, a fixing plate 15 is provided at an appropriate position inside the type 4, and a guide plate 16 is further provided at an appropriate position below the fixing plate 15.

A kite rod 17 is suspended from an appropriate position on the lower surface of the elevating plate 12, and is passed through the fixed plate 15 and the guide plate 16.

A hydraulic circuit 18 is provided within one rotating shaft 7 and is connected to the lower part of the cylinder 13 via a seal 19 attached to the formwork 1 to control the hydraulic operation of the cylinder 13.

By doing so, there is no need to draw in the hose for hydraulic operation of the cylinder 13 from outside the machine, and it does not become an obstacle when the formwork 1 is turned over.

To use this device, first, the piston rod 14 is pushed up by the action of the cylinder 13, and the elevating plate 12 is stopped at a position slightly below the upper edge of the pear garden 4.

Next, the vibrating body 10 is rotated by the pulley 11 to vibrate the formwork 1 and therefore the pear garden 4 while supplying concrete material for forming a surface layer into the space formed by the upper peripheral edge of the pear garden 4 and the lifting plate. do.

Next, the lifting plate 12 is fixed to the fixing plate 1 by the action of the cylinder 13.
Lower it to position 5.

At this time, the surface layer concrete material also descends while remaining on the lifting plate 12, and a space is again formed between the upper part and the upper peripheral edge of the pear garden 4, and the concrete material for forming the back layer is supplied into that space. It is integrated with the surface layer.

Although this is not shown, while applying pressure with a pressure plate,
Vibration is applied by the vibrating body 10 for molding.

In addition, when raising and lowering the above-mentioned lifting plate 12, the guide rod 1
7 is guided by the fixed plate 15 and the guide plate 16, and the elevating plate 12 is prevented from tilting.

When the molding is completed, the rotation gear 9 is operated to rotate the rotation shaft 7.
, 8, the mold 1 is turned over by 180 degrees, and the product in the mold surface 4 is extruded onto a receiving plate located below the mold 1' (not shown).

The present invention is as described above, and an excellent concrete product can be obtained in which a uniform surface layer is formed and there is no efflorescence phenomenon.

Moreover, the pear orchard 4 can be replaced with another pear orchard as appropriate, and many types of concrete products can be manufactured using the same molding machine.

[Brief explanation of drawings]

The drawing is a partially cutaway front view showing an example of implementation of the present invention. 1... Formwork, 2, 3... Support, 4... Pear garden, 5
, 6... Support piece, 7, 8... Rotating shaft, 9... Rotating gear, 10... Vibrating body, 11... Pulley, 12
...Elevating plate, 13...Cylinder, 14...Piston rod, 15...Fixing plate, 16...Guide plate, 1
7...Guide rod, 18...Hydraulic circuit, 19...Seal.

Claims (1)

[Scope of Claims] 1. A mold is removably installed in a mold frame equipped with a rotating shaft and a vibrating body for inversion and demolding, and the mold has an opening at the top and an elevating plate inside. 1. A formwork device for forming concrete material, characterized in that the elevating plate is capable of being raised and lowered by the action of a cylinder attached to its lower surface. 2. The formwork device for forming concrete material according to claim 1, wherein a guide rod is provided at the lower part of the elevating plate, and a guide plate and a fixing plate serving as the lower limit of the lowering of the elevating plate are provided inside the mold.