JPH0775797B2 - Molding equipment for low strength moldings - 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 for low-strength compacts capable of efficiently molding low-strength compacts such as water-permeable blocks from granular raw materials such as molten slag of sewage sludge incineration ash. It is a thing.

[0002]

2. Description of the Related Art In order to effectively utilize sewage sludge incineration ash generated from sewage treatment plants, etc., sludge incineration ash is made into molten slag, which is molded into a block shape with an inorganic binder and fired, and the water permeability for paving. Attempts have been made to sex blocks. However, since a molded product such as a block molded from such a granular raw material has low strength, it cannot be taken out from the mold as it is. For this reason, the conventionally molded low-strength molded body is pushed up together with the bottom plate from the mold,
A method has been adopted in which a flat plate is applied to the upper surface of a low-strength compact, and the bottom plate and the flat plate are lightly sandwiched from above and below, and the top and bottom are inverted, and the bottom plate is taken out on the conveyor.

However, if such a molding method is adopted, it is necessary to take out the bottom plate from the conveyor and return it to the mold of the molding machine again. For this reason, from the completion of the first molding to the second molding. A considerable interval was required, and the production pitch of molding could not be improved.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and is a low-strength molding capable of efficiently molding a low-strength compact from a granular raw material such as useful slag of sludge incineration ash. It has been completed to provide a body shaping device.

[0005]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention provides a molding die having a bottom plate pushing-up device, and a molded low-strength molding body is taken out upside down together with the bottom plate. A carriage for returning the bottom plate that can move in the traveling direction of the conveyor and a direction perpendicular to the conveyor is provided between the conveyor and the bottom plate on the conveyor at the position where the conveyor advances one pitch from the take-out position. It is characterized in that a bottom plate returning device for reversing and transferring is provided.

[0006]

The present invention will be described in more detail below with reference to an embodiment of a triple molding machine shown in the drawings. 1 and 2,
Reference numeral 1 denotes a triple-type molding die for press-molding the granular raw material with the upper die 2 while vibrating. This mold 1 has a frame shape,
As shown in FIG. 7, three bottom plates 3 are formed inside the mold 1.
Is supported by a pin attached from the lower part of the mold, and while the bottom plate 3 is supported on the bottom of the mold 1, the granular raw material is filled inside, and the upper mold 2 press-molds the low-strength molded product B. It is a thing. As shown in FIG. 1, the low-strength molded body B molded by the above-mentioned molding die 1 is pushed upward from the molding die 1 by the bottom plate pushing-up device 4 and intermittently by the molded-body take-out reversing device 5 as described below. It is taken out by being turned upside down on the movable conveyor 6.

In the molded product take-out reversing device 5 of the embodiment, an elevating cylinder 8 is attached to a traveling frame 7 capable of traveling in the direction from the molding die 1 to the conveyor 6, and the lower end of the elevating cylinder 8 is 180 degrees about a horizontal axis by a hydraulic motor 9 or the like. It is equipped with a rotatable head 10. Further, this head 10 has a fork 11 inserted in the lower surface of the bottom plate 3 pushed up on the lower side, and a flat plate for contacting the upper surface of the molded low-strength molded body B on the upper side.
It is provided with twelve support tools 13. The support 13 of the flat plate 12 can be moved toward and away from the fork 11 by the small cylinder 14.

As shown in FIG. 1, the compact take-out and reversing device 5 is configured so that a flat plate 12 is closely attached to the upper surface of a low-strength compact B pushed upward from the molding die 1 together with the bottom plate 3 so that the flat plate 12 and the bottom plate 3 are closely contacted with each other. The low-strength compact B is lightly sandwiched, and the conveyor 6 is turned upside down by the hydraulic motor 9 so that the bottom plate 3 faces upward.
Take it out. As a result, as shown in FIG. 6, the low-strength compact B is placed on the conveyor 6 while remaining on the flat plate 12,
Further, the bottom plate 3 remains attached to the upper surface of the low-strength molding B. It should be noted that the above-mentioned molded product take-out reversing device 5 has been conventionally used and does not constitute an essential part of the present invention. In the present invention, the bottom plate 3
The present invention provides a mechanism for quickly returning the mold to the mold 1.

According to the present invention, the bottom plate returnable between the molding die 1 and the conveyor 6 is movable in the traveling direction of the conveyor 6 and in the direction perpendicular thereto (the direction connecting the molding die 1 and the conveyor 6). A trolley 15 is provided. The carriage 15 is supported by a cylinder 18 or the like on a slider 17 which can reciprocate along a rail 16 so as to reciprocate in parallel with the conveyor 6. The slider 17 is reciprocated by swinging a drive arm provided on the lower surface of the rail 16 with a cylinder 19 or the like as shown in FIG. In addition, the carriage on the slider 17 by the cylinder 18 etc.
The 15 movements are as shown in FIG. The truck 15 of the embodiment has three recesses 20 as shown in a plan view in FIG.
However, it goes without saying that the number of the recesses 20 is changed according to the number of the low-strength moldings B molded at one time.

As shown in FIG. 2, the low-strength compact B on the conveyor 6 is taken out on the conveyor 6 by the above-mentioned compact take-out / reversing device 5.
Bottom plate returning device for transferring the bottom plate 3 from the top of the conveyor 6 to the trolley 15 to the side of the position advanced by one pitch.
21 are provided.

As shown in FIGS. 2 and 5, the bottom plate returning device 21 projects an arm 24 from a shaft 23 which is rotated by approximately 180 degrees by a cylinder 22, and has three electromagnets 25 on the arm 24.
It has a structure in which an attached suction head 26 is attached. This bottom plate returning device 21 is, as shown in FIG.
The bottom plate 3 attached to the upper surface of the upper low-strength molding B is adsorbed by the electromagnet 25, rotated 180 degrees, and can be returned to the carriage 15.

[0012]

Next, the operation of the above device will be described. First, when molding is completed in the molding die 1, the bottom plate 3 and the molded low-strength molding B are pushed up by the bottom plate pushing-up device 4 above the molding die 1. Next, the above-mentioned molded product take-out reversing device 5 brings the flat plate 12 into close contact with the upper surface of the low-strength molded product B, inserts the fork 11 into the lower surface of the bottom plate 3, and lightly sandwiches the low-strength molded product B with the bottom plate 3. , The low-strength molded body B molded with the bottom plate 3 facing upward while being turned upside down by the hydraulic motor 9 is taken out onto the conveyor 6. As a result, the low-strength compact B is placed on the conveyor 6 while resting on the flat plate 12, and the bottom plate 3 is attached to the upper surface of the low-strength compact B.

The low-strength molded body B is fed one pitch by the conveyor 6 and moved to the installation position of the bottom plate returning device 21. At this position, the bottom plate returning device 21 adsorbs the bottom plate 3 from the upper surface of the low-strength molded body B as shown in FIG. 5, and places the bottom plate 3 on the carriage 15 waiting at the position shown by the solid line in FIG. At this time, the suction head 26 of the bottom plate returning device 21 is inserted into the recess 20 of the carriage 15.
Can enter.

Next, the carriage 15 is moved by the cylinder 18 to the conveyor 6
Return to the direction opposite to the traveling direction of
Moves in the direction of the molding die 1 and positions the dolly 15 on which the bottom plate 3 is placed directly below the molding 1. In this state, the bottom plate push-up device 4 rises to lift the bottom plate 3 upward from the carriage 15 to support the bottom plate 3, and the carriage 15 is mounted on the slider 19 by the cylinder 19.
Escape from below the mold 1 with 17. Then, the bottom plate pushing-up device 4 is further raised to return the bottom plate 3 to the inside of the molding die 1.

Although the above description has been made in the same moving order of the bottom plate 3, in reality, while the compact take-out reversing device 5 is transferring the low-strength compact B from the mold 1, it is transferred to the conveyor 6. The bottom plate returning device 21 transfers the bottom plate 3 onto the dolly 15 from the upper surface of the low-strength molded body B molded last time. Thus, according to the apparatus of the present invention, a plurality of bottom plates 3 are provided for one molding die.
Since it is used in sequence, there is no need to keep the molding die 1 waiting for a long time until the bottom plate 3 returns like the conventional device that used a single bottom plate 3 for one molding die. The molding speed can be greatly improved.

[0016]

As described above, the molding apparatus for a low-strength compact according to the present invention is devised in a mechanism for returning the bottom plate taken out together with the low-strength compact to the mold, thereby incinerating sludge incineration ash. Since it is possible to efficiently form a low-strength compact from a granular raw material such as the molten slag, it will contribute to the development of the industry by eliminating the problems of the conventional equipment of this kind. However, it is extremely large.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a front view showing a moving mechanism of the carriage.

FIG. 4 is a side view showing a moving mechanism of a carriage on a slider.

FIG. 5 is a front view showing a bottom plate returning device.

FIG. 6 is a front view showing the low-strength molded product taken out on the conveyor.

FIG. 7 is a cross-sectional view showing a state in which a bottom plate is supported by a molding die.

[Explanation of symbols]

 1 Mold 3 Bottom plate 4 Bottom push-up device 6 Conveyor 15 Cart for returning bottom plate 21 Bottom plate returning device B Low strength molded body

Claims (1)

[Claims] 1. A molding die provided with a bottom plate pushing-up device and a conveyor, in which a molded low-strength molding is taken upside down together with the bottom plate and taken out, in a traveling direction of the conveyor and a direction perpendicular thereto. A low-strength, characterized in that a movable carriage for returning the bottom plate is provided, and a bottom plate returning device for transferring the bottom plate on the conveyor while reversing it onto the carriage is provided at a position where the conveyor advances one pitch from the take-out position. Molding device for molded products.