JP4112452B2 - Formwork equipment for concrete blocks - Google Patents

Description

  The present invention comprises a concrete block having at least a mold body and a movable wall that can be moved forwards and backwards. The present invention relates to a formwork device for a concrete block that is molded by a punching method.

  Conventionally, in order to form a concrete block product whose bottom surface width is narrower than the top surface width, such as a groove cover of a road side groove, by immediate demolding, if the top and bottom direction is molded as it is, the top surface is wide, The mold could not be removed. In view of this, there has been proposed a method in which the concrete block product is turned upside down, molded with a wide surface facing down, and removed from the bottom.

  However, in the above-described undercutting method, the product is molded with the wide upper surface, which is the product surface, facing down, and the narrow lower surface is facing upward, so that the makeup aggregate becomes the bottom surface when applying makeup to the product surface. It was difficult to automatically supply the formwork by scraping with a feed hopper.

Japanese Patent No. 2998930

  Furthermore, a method has been proposed in which a liner that moves along the side plate guide is provided as in Japanese Patent No. 2998930, and a bottom-out type is proposed, but dust and paste are bitten into the guide portion to ensure smooth operation. There was a problem that it was not possible.

In order to achieve the above-mentioned object, the invention according to claim 1 is a formwork device for a concrete block which molds a concrete block whose side face is narrowed downward by a lowering method, and the side wall of the formwork body. the guide member and the horizontal direction to the forward retractable mobile wall, said formwork Rutotomoni provided pallet plate supporting the opening provided from below into the body, the moving walls, for guiding the movement in the horizontal direction, A first arm having one end connected to the mold body, a second arm having one end connected to the moving wall, and a lower end supported by the pallet plate and the other ends of the first and second arms The moving wall is provided by changing the relative position of the mold body and the pallet plate by raising the mold body or lowering the pallet plate when removing the concrete block. Move forward and backward And wherein the Rukoto.

  In the invention according to claim 2, the moving wall is provided in one direction of the mold body.

  In the invention according to claim 3, the moving wall is provided in two directions of the mold body.

  According to a fourth aspect of the present invention, the moving wall is provided in three directions of the mold body.

  Further, in the invention described in claim 5, the moving wall is provided in four directions of the mold body.

  Since this invention consists of an above-described structure, there can exist an effect which is demonstrated below.

  According to the first aspect of the present invention, there is provided a concrete block formwork device for molding a concrete block whose side surface is narrowed downward by a bottom-out type, and can be moved forward and backward in the horizontal direction on the side wall of the formwork body. A movable wall and a pallet plate that supports the opening provided in the mold body from below are provided, and the movable wall is advanced by changing the relative position of the mold body and the pallet plate when demolding the concrete block. It is a thing to retreat.

  By adopting such a configuration, the concrete block formwork apparatus of the present invention can be manufactured in a bottom-out manner even if the concrete block has a side surface that narrows downward. Further, the surface of the product can be smoothed to uniformly supply pigments and the like as a decorative surface. Furthermore, only by lowering the pallet plate or raising the formwork body, the moving wall of the formwork body is retracted in the lateral direction, so that no special drive source for driving the moving wall is required.

  Further, in the inventions according to claims 2 to 5, since the moving wall is provided in directions 1 to 4 of the formwork body, a special drive source is provided even when the side surface of the concrete block becomes narrower downward. The reverse taper type product can be demolded by the undercutting method without the need for. In addition, since the moving wall of the mold body is set again at a predetermined position simply by raising the pallet plate or lowering the mold body, the preparation of the mold apparatus can be speeded up.

  The present invention realizes a concrete block formwork apparatus that can be smoothly and instantly demolded by applying a smooth cosmetic process with the surface of the concrete product facing up.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment. FIG. 1 is a partially cutaway front view showing a concrete block formwork apparatus according to the present invention, FIG. 2 is an explanatory view showing the demolded state, and FIG. 3 is a concrete block formwork of the present invention. It is a principal part top view which shows the mold release mechanism in an apparatus.

  Here, the concrete block formwork apparatus 10 is a pallet that supports a movable wall 12 that can be moved forward and backward in the horizontal direction on the side wall of the formwork body 11 and an opening 13 that is provided substantially at the center of the formwork body 11 from below. A plate 14 is provided. The moving wall 12 has a tapered surface 12a that narrows downward. The moving wall 12 is supported by a guide member 15 that guides the movement in the horizontal direction as shown in FIG. The guide member 15 includes a rod 15a fixed to the back surface of the moving wall 12, a bearing 15b that supports the rod 15a so as to be slidable in the axial direction, a washer 17 fixed to the tip of the rod 15a with a nut 16 and a bearing. The coil spring 18 is interposed between the coil spring 15b and the coil spring 15b. The bearing 15b is fixed to the mold body 11 with screws or the like. Further, the moving wall 12 is urged in the backward direction (arrow A direction) by the coil spring 18.

  In the present embodiment, the moving wall 12 is arranged on two opposite side surfaces of the opening 13 of the mold body 11. In addition, the movement wall 12 may be arrange | positioned on the four side surfaces of the opening part 13, and may be arrange | positioned on one side surface or three side surfaces.

The moving wall 12 is connected to a first arm 19 having one end connected to the mold body 11 and a second arm 20 having one end connected to the moving wall 12, and the lower end is connected to the pallet plate. 14 is provided with a weight member 21 supported by 14. Therefore, when the mold body 11 is lifted, the weight member 21 is lowered by its own weight and the urging force of the coil spring 18 to retract the moving wall 12. Further, when the mold body 11 is lowered, the weight member 21 is raised, and the first arm 19 and the second arm 20 act as a toggle joint, and the moving wall 12 is advanced.

The mold body 11 is configured to move up and down by a hydraulic cylinder 25. The pallet plate 14 is placed on the fixed table 23, closes the opening 13 of the mold body 11 from below, and supports the weight member 21 from below. In addition, a vibration mechanism 24 is attached to the fixed table 23.

  Next, the operation of the concrete block formwork apparatus 10 according to the present invention configured as described above will be described. First, in the state shown in FIG. 1, concrete material is supplied to the opening 13 of the mold body 11 from a hopper not shown. In addition, when supplying a hard concrete material to the mold body 11, the vibration mechanism 24 is operated so as not to become rough. Next, the shape is adjusted by pressing from above with a pressing device (not shown). At this time, the mold body 11 is lowered, and the moving wall 12 is fixed at the advanced position. In this state, pressurization and vibration are performed to mold the product.

After the molding, as shown in FIG. 2, the hydraulic cylinder 25 is operated to raise the mold body 11 in the arrow B direction. When the mold body 11 is raised, the weight member 21 is lowered at the same time, and the moving wall 12 is retracted as shown in FIGS. When the moving wall 12 moves backward, the product R can be extracted from below. In addition, the moving wall 12 can be moved only by raising the mold body 11 without requiring other power. The concrete block product thus manufactured is transported to the curing room together with the pallet plate 14 to be cured.

  Further, after the product R is taken out and another pallet plate 14 is placed on the fixed table 23, the moving wall 12 can be set at the correct position by simply lowering the mold body 11 with the hydraulic cylinder 25. The next manufacturing process can be started. Therefore, the working efficiency for manufacturing the concrete block can be remarkably improved.

FIG. 4 is an explanatory view showing a demolded state according to another embodiment of the present invention. In the present embodiment, the mold body 11 is fixedly supported via a vibration isolating rubber 27 and the like. The pallet plate 14 is placed on a vibration table 26 provided with a vibration mechanism 24, and the vibration table 26 is supported by a hydraulic cylinder 22 so as to be movable up and down. In addition, since the drive system of the moving wall 12 is the same as that of the first embodiment, the description is omitted. The pallet plate 14 closes the opening 13 of the mold body 11 from below and supports the weight member 21 from below.

In the case of the above configuration, in order to remove the mold after molding, the hydraulic cylinder 22 is operated as shown in FIG. 4 to lower the pallet plate 14 on the vibration table 26 in the arrow C direction. When the pallet plate 14 is lowered, the weight member 21 is also lowered at the same time, and the moving wall 12 is retracted. When the moving wall 12 moves backward, the product R naturally comes out from below. In addition, the moving wall 12 simply returns the pallet plate 14 and returns to the original position without requiring other power.

FIG. 1 is a front view with a part cut away showing a concrete block formwork apparatus according to the present invention. FIG. 2 is an explanatory view showing a demolded state in the concrete block formwork apparatus. FIG. 3 is a plan view of an essential part showing a demolding mechanism in the concrete block formwork apparatus. FIG. 4 is an explanatory view showing a demolded state according to another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Concrete block formwork apparatus 11 Formwork main body 12 Moving wall 12a Tapered surface 13 Opening part 14 Pallet board 15 Guide member 15a Rod 15b Bearing 16 Nut 17 Washer 18 Coil spring 19 First arm 20 Second arm 21 Weight member 22 Hydraulic cylinder 23 Fixed table 24 Excitation mechanism 25 Hydraulic cylinder 26 Vibration table

Claims (5)

A concrete block formwork device that molds a concrete block whose side surface is narrowed downward by a bottom-out method,
A movable wall that can move forward and backward in the horizontal direction on the side wall of the mold body,
Rutotomoni provided pallet plate supporting the opening provided in the mold body from below,
The moving wall is a guide member for guiding the movement in the horizontal direction;
A first arm having one end connected to the mold body, a second arm having one end connected to the moving wall, and a lower end supported by the pallet plate and the other ends of the first and second arms A weight member connected to
The mold body is lifted when the concrete block is removed , or the pallet plate is lowered, and the moving wall is moved forward and backward by changing the relative position of the mold body and the pallet plate. Forming equipment for concrete blocks.   The formwork device for a concrete block according to claim 1, wherein the moving wall is provided in one direction of the formwork body.   The formwork device for a concrete block according to claim 1, wherein the moving wall is provided in two directions of the formwork body.   The formwork device for a concrete block according to claim 1, wherein the moving wall is provided in three directions of the formwork body.   The formwork device for a concrete block according to claim 1, wherein the moving wall is provided in four directions of the formwork body.

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