JPS6122906A - Instantaneous mold-release type concrete product molding equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> This invention relates to an instant demolding type concrete product forming apparatus.

<Prior art> Immediate demolding type concrete product forming equipment repeatedly packs hardened concrete into the same mold, molds it, and then immediately demolds it. They did not have special equipment to do so. Therefore, after mass production using the instant demolding method, when switching to a different product type, the formwork had to be replaced using a crane and manpower, which was particularly troublesome due to the large number of cushioning materials, mounting bolts, and tightening and removal of nuts. .

<Problems to be Solved by the Invention> The invention aims to eliminate the inefficiency of the above-mentioned immediate demolding molded lid frame replacement.

<Means for Solving the Problems> This invention, which has achieved the above object, has multiple types of formworks without a bottom plate that have horizontal engaging parts of the same shape on both sides and differ only in the forming part, and the required formworks. An in/out guide mechanism that moves horizontally from side to side in the usage position to the molding position or its upper and lower positions, presses a flat pallet against the lower surface of the formwork that has entered the molding position, pours concrete, and pressurizes it. , a demolding mechanism that places the product and demolds the product downward after vibration, and a demolding mechanism that is located on both sides of the demolding mechanism and receives and engages the sideways fitting parts of the mold that has come to the molding position, and This instant demolding concrete product forming apparatus is characterized by comprising: a downward restraining mechanism that prevents the frame from rising; and a vibration mechanism that vibrates the form that has entered the forming position.

<Function> This invention provides all molds for various products with sideways fitting portions on both sides, which were not present in conventional "immediate demolding type" or "pouring type" molds.

In the horizontal fitting part, when the formwork enters with horizontal movement,
It is made to fit with the engaging part of the downward restraining mechanism.

With this, when the formwork on the side of the molding machine is moved almost horizontally by the guide mechanism to the molding position or above and below it, the downward holding mechanism that meets this moves the formwork to the sideways engaging portions on both sides of the formwork. and engage with each other. Therefore, the demolding mechanism pushes up the bottom surface of the formwork from below via the pallet, and the downward restraining mechanism pushes down the formwork via the engaging part, so that it is restrained so that it does not move even if severe vibrations are applied to the formwork. I can do it.

As a result, the use of porcelain holes (A-) and nuts for attaching formwork were completely abolished. There is no problem because the cushioning material is incorporated in advance into either the formwork, the excitation side, or the restraint side.

<Embodiment> Fig. 1 is an elevational view of an embodiment of this invention, and Fig. 2 is a view of the form seen diagonally from below. Formwork L has no bottom plate, and the fifth
．． 4. As shown in figure 4, press the flat ballen) P from below\
This is a well-known demolding method in which the product is vibrated, molded, placed on the ball (P), and taken out downward.

At the left end of FIG. 1, there is a storage shelf IO for various formworks 1, and any formwork 1 is fed into the molding position A1 or above and below the molding position A1 via the roller receiving cradle. There are guide mechanisms on both edges of the pedestal /'/.
In this case, a guide/board will be posted. However, the pedestal //
The left and right hook/retractor pushing rods 13 with hooks that pull the upper formwork to the chain line at the molding position A also belong to the guide mechanism in a broad sense.

The demolding mechanism 3 is located directly below the molding position A, and in this case, since it also serves as a vibration mechanism, it engages with and vibrates the downward fitting part /a of the mold frame /. The downward restraining mechanisms are located on both sides of the demolding machine s3, and are fitted horizontally on both sides of the formwork l), /l.
) and restrain it downward.

Note that 'S is a press machine, 6 is its press die, 7 is a parent hopper,
g is a sliding hopper, and 9 is its sliding substrate, both of which are conventional.

First, the formwork l will be explained in detail. Formwork of this example/#-
As shown in Figure 1:tIX2, the upper surface of the demolding mechanism 3, which has a frame-shaped raised part on its lower surface and whose inner periphery serves as a fitting part /a, also serves as a vibration mechanism, as shown in Figure 4. tit,
b I try to get into it. In heat theory, a flat ball (P) is placed on the top surface of the demolding mechanism 3 and fitted. In this case, the sideways fitting parts /b on both sides are fixed to the formworks with cushioning material /4 ('c, ■ shape steel (7, 1), and are I type fi4t.
The groove buttock part of s is made into a concave surface for horizontal ah engagement. This ■-shaped steel lS also serves as legs when the formwork l moves on the roller-containing pedestal l. Since the cushioning material /e is incorporated, conventionally, when changing the formwork, it is now only necessary to attach and remove the cushioning material 1, which was a troublesome part along with tightening bolts and nuts. However, the cushioning material III may not be attached to the formwork l side, but may be incorporated downward into the holding mechanism l side.

The guide mechanism is fixed on both sides of the roller receiving stand //, but it is a guide mechanism and formwork pulling/extruding mechanism in a broad sense.
True retraction with recess, extrusion 111 / ? Jd, in this case,
The sliding hopper is placed along both sides of a sliding board 9 supporting the lower surface. Rack teeth are attached to the lower surface of the retraction/extrusion rod/3, and the pinion 16 is rotated by a motor to move it forward and backward. The hook /:1 at the tip is driven by a drive mechanism (not shown).When pushing out the formwork l, it moves inward and pushes it with the tip, and when pulling it in, it opens slightly to the left and right, and serves as a hook for the formwork /. It is hooked onto a special engaging part (circuit). In Fig. 5, the hook/C is in a standby state, l/' is the position where the mold/form has been retracted to the molding position A, and 12'' is the position where the mold has been pushed out.In heat theory, the left and right sides move together.

However, the mechanism for taking in and taking out the formwork l can be designed in various ways, and it may also be possible to lightly push it in and out by hand. In any case, it is important to have a guide mechanism that can fit above and below the molding position correctly or depending on the design conditions.

The demolding mechanism 3 has a well-known structure supported by two elevating cylinders 17 so that the product is placed on a flat pallet P and demolded downward, so that the product can be lifted and lowered by placing the pallet (P) thereon. In this embodiment, a vibration motor is built in to serve as the vibration excitation means, or the motor is placed externally, and a belt is used to rotate the eccentric weight.

When the demolding mechanism 3 does not also serve as a vibrating mechanism as in the above embodiment, a separate vibrating mechanism 20 is provided as in the embodiment shown in FIG. In this case, the downwardly fitting part /a of the formwork / fits into the pin receiving hole on the outer periphery of the molding part. Eccentric weight for each formwork #
), 2Oα is installed in advance, and once the molding position is reached, vibration can be applied simply by hanging a belt between it and the fixed vibration excitation mechanism KO. The demolding mechanism 3 is mounted on the PMC via an air spring 19, and is moved up and down along the column λ by a hydraulic cylinder/7.

The downward restraining mechanism DA for restraining the formwork/ which is pushed up by the demolding mechanism 3 via the barren (P) downward is the formwork / shown in Fig. 2.
It consists of a shaped steel or welded steel material that holds the lower flange of I-shaped steel 15, which is the horizontal fitting part lb, in its mouth as shown in Figure 4, and a fluid pressure cylinder /g that raises and lowers it and pressurizes it downward. .

Due to design considerations, the mold l is often sent not to the molding position A as in this embodiment, but to above or below the molding position A.

In that case, the height of the downward holding mechanism should be adjustable for both the height of taking in and out of the mold and the height of molding. The clamp fluid pressure cylinder/liter has both the functions of vertical adjustment and downward pressurization (restraint).

Adding a brief explanation of the operation of the embodiment device shown in FIG.
After forming the required number of products, the formwork l is stopped at a predetermined loading/unloading height by adjusting the height of the downward holding mechanism. Then, the mold 1 is retracted and the push-out rod 13 is pushed out to push the formwork 1 onto the pedestal 11.

The taken out formwork is returned to its original position on the storage shelf 10 by hand or other means.

In order to transfer the formwork l to be used next to the pedestal/l, the storage shelf io
change the height of The formwork / which has been brought out onto the pedestal 11 by hand or otherwise is hooked onto the hook saw of the retraction and extrusion rod /3 and is placed at the molding position A or above and below it along the guide mechanism.

At that time, the downward holding mechanism receives the lower flange of the ■section steel/3 of the formwork l. The demolding mechanism 3, which was waiting below, also rises and engages with the mold frame l.

Once the formwork l is at the correct height at the forming position A, the sliding hopper is moved over the formwork l and the required amount of concrete is dropped into the forming space C of the formwork (see Figure 2.4) to fill it. At the same time, the vibrating section of the demolding mechanism 3 starts vibrating, and the press S lowers the mold 6 from above to compress the concrete.

After compression molding of the concrete is completed in this way, the demolding mechanism 3 is lowered, and the product is cut into a flat plate with the press die 6) and both the molds are demolded downward. The demolding mechanism 3 with the pallet P and products on it stops at the line that sends the products and nolets P to the side, replaces it with a new pallet P, and then transfers it to the formwork/bottom surface again. It rises to press against you. Then, concrete injection, vibration, and pressurization are repeated again.

Although the present invention has mainly been described by way of one embodiment, the present invention can be varied and applied in various ways by a designer using well-known techniques according to implementation conditions without changing the gist thereof.

<Effects of the Invention> This invention eliminates at once the inefficiency of the formwork replacement work that was hindering the productivity of immediate demolding concrete product forming equipment. Breaking away from the common sense that bolts and nuts are used to tighten and remove the formwork exchange line through the cushioning material, when replacing the cushioning material,
Boruto doesn't touch Natsuto.

Each type of formwork is provided with a sideways fitting part so that it can easily engage with the waiting downward holding mechanism.
When the formwork entered the molding position, it was held by being pushed up by the demolding mechanism and pushed down by the downward restraining mechanism, making it possible to sufficiently vibrate it.

In addition, since the downward restraining mechanism is located at the bottom of the formwork, it does not interfere with pressurization and concrete pouring in the space above the formwork.

With this invention, it has become possible to computer-control the high-mix, low-volume production of concrete products using instant demolding.

[Brief explanation of the drawing]

Figure 1 is an elevational view for explaining the implementation status of one embodiment of Hiroko's invention, Figure 2 is a perspective view of the mold from diagonally below, and Figure 5 is the mold at the molding position shown in Figure 1. Fig. 4 is a partial side view of the main part, Fig. 5 is a plan view of the main part of Fig. 1, and Fig. 6 is only the right side of the center line of another example. FIG. /...formwork, ko...guide mechanism, 3-...mould removal mechanism,
DA...downward restraining mechanism, KO...vibration mechanism.

Claims (1)

[Claims] A plurality of types of formwork without a bottom plate having horizontal engaging parts of the same shape on both sides and differing only in the molding part, a formwork in which the required formwork is moved from the side in a usage position almost horizontally. A flat pallet is pressed against the lower surface of the formwork that has entered the above-mentioned forming position, and after pouring concrete, applying pressure, and shaking, the product is placed on it and removed from the mold downward. a demolding mechanism; downward restraining mechanisms disposed on both sides of the demolding mechanism that receive and engage the sideways fitting portions of the mold that has come to the molding position and prevent the mold from rising; An instant demolding type concrete product forming device comprising: a vibration mechanism that vibrates a formwork placed in position.