JP2850286B2 - Demolding device by vacuum suction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial application] Concrete products are molded and cured in a mold, and then the mold is opened and taken out. The present invention relates to a demolding device for vacuum-sucking the product and removing the product from a mold.

[0002]

2. Description of the Related Art Since the upper surface of a product in a mold has many horizontal surfaces with concrete put therein, it is suitable for use of a suction cup for vacuum suction, and most of the demolding equipment is based on this. When two suction cups are used side by side, one that can adjust the distance between them is also used.

[0003]

In order to increase the productivity, it is better to increase the number of products to be simultaneously molded in one mold. Recently, the number has increased, and, for example, four blocks have been formed simultaneously for a 1 m long sidewalk boundary block, and six blocks have been formed for a 0.6 m long land boundary block. The bottleneck for successively producing different types and sizes of these blocks was manual work of sucker replacement and rearrangement of the demolding device. This hindered full automation. The present invention eliminates most of the manual work of associating a suction cup with a product.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a demolding apparatus using vacuum suction, wherein different dimensions are set for each peripheral surface of a horizontal beam having a rectangular cross section.
A suction beam having the suction cups arranged outwardly fixed thereto, and an elevator frame provided with bearings for rotating shafts extending from both ends of the suction beam, a rotary drive and a braking device, and concrete to be removed from the mold in the formwork It is characterized in that the suction cups on the respective peripheral surfaces are appropriately used depending on the product.

[0005] The suction beam has a circular flange at the end thereof concentric with the rotary shaft, and the peripheral edge of the circular flange has four exhaust ports connected to the suction pipes for the suction cups on the respective peripheral surfaces. , Are equally distributed on the same circumference concentric with the flange, and when the suction cup on one circumferential surface of the beam is directed downward, the exhaust port connected to the exhaust pipe is in contact with the outer surface of the flange. It is proposed to connect to the inlet of the exhaust pipe.

[0006]

The suction cup of the demolding device according to the present invention is not only downward but also horizontally and upward as in the prior art. The four peripheral surfaces of the rotatable suction beam are provided with suction cups of different shapes and arrangements. Therefore, the unnecessary suction cups can be turned sideways and upward, and the necessary ones can be turned downward. If four kinds of suction cup arrangements can be prepared, there is no inconvenience in actual work. Since the suction beam with suction cups on all four sides is rotated, the exhaust pipe of each suction cup cannot be fixed and placed as before. In the present invention, the fixed piping from the vacuum pump is extended to a position in contact with the outer surface of the circular flange at the end of the suction beam, and the four exhaust ports equally distributed on the flange and the suction cups on the four peripheral surfaces are connected to the individual pipes. . The exhaust port connected to the downward suction cup was in contact with the receiving port of the fixed pipe.

[0007]

1 and 2 are explanatory views of one embodiment of a demolding apparatus using vacuum suction according to the present invention. The upper part is a lifting / lowering and traveling mechanism similar to the conventional one. Below that is a rotatable suction beam which is a feature of the present invention. First, a brief description of the upper and lowering and traveling mechanisms will be given, followed by a detailed description of the lower suction beam relationship. The demolding device reciprocates on the rail 2 on the carriage 1. 3 is a traveling drive motor. Reference numeral 4 denotes a lifting / lowering drive braking motor, and 5 denotes a chain vehicle which is rotated by the motor 4.
Supports the total weight of products, etc. The upper ends of the two chains 6 are fixed to the upper end of the lifting guide frame 7, and the lower ends are fixed to the suspension frame 8 via the chain wheel 5. A pair of suspension frames 8 supports the elevator frame 9.

[0008] Now, the suction beam 10 which is a main member of the present invention.
Has rotating shafts at both ends and supports beams 9a on the left and right of the elevator frame 9.
The bearing 12 attached to the common end plate 11 of the
3 is supported. 1 and 2, the suction beam 10 is omitted,
Only the position of the suction cup 14 is drawn. 1 and 3, the product M is indicated by a chain line.
Indicates that three products can be adsorbed and two products M 'can be adsorbed. Although the suction cups 14 in FIG. 3 are similar to each other, actually, different suction cups are arranged as shown in FIG. The base plate 17 on which the brake gear motor 15 and the rotational position detection unit 16 on the opposite side are mounted, as shown in FIGS. 3 and 5, straddles between the ends of the left and right support beams 9a. 17a is a reinforcing plate. The gear motor 15 rotates the rotating shaft 13 of the suction beam 10, and the detection unit 16 stops the motor 15 by activating a detection switch (not shown) when a required suction cup 14 on each surface of the suction wand is directly below. The rotation of the rotation shaft 13 at the left end in FIG.
The light is transmitted to the detection unit 16 in the chain.

Next, the connecting means for connecting the rotating suction cup 14 and the exhaust pipe from a vacuum pump (not shown) will be described with reference to FIGS. The suction beam 10 of this embodiment has a circular flange 19 concentric with the rotating shaft 13 at one or both ends.
An exhaust port 20 connected to an exhaust pipe (hose) 21 for sucker provided on each peripheral surface of the suction beam 10 is provided at a peripheral portion of the flange 19.
, And are equally distributed on the same circumference concentric with the flange 19.

The exhaust pipe (hose) 21 for the suction cup is made of the suction beam 10.
And the exhaust nozzle of each suction cup 14 is connected to the exhaust port 20 of the circular flange 19. A hose 21 indicated by a dashed line in FIG. 3 connects the exhaust nozzle 14 a of each suction cup 14 facing downward and the uppermost exhaust port 20 of the flange 19. The suction cups 14 on the four sides of the beam 10 are connected to the exhaust port 20 that comes to the top when each comes directly below. In FIG. 3, only one hose 21 is drawn with a chain line.

As shown in FIG. 6, the stop position of the uppermost exhaust port 20 in FIG. 3 is concentric with the receiving port 22a of the terminal pipe 22 of the exhaust pipe fitted in the hole of the support beam end plate 11. is there. When the flange 19 of the attraction beam 10 is stopped by a command from the rotation position detecting unit 16, the exhaust port 20 on the flange 19 side and the receiving port 22a of the pipe terminal are substantially concentrically opposed. Then, when a vacuum pump (not shown) is operated, the inside of the terminal tube 22 is depressurized, and the rubber packing 23 of the flange of the receiving port 22a is pressed against the circular flange 19 by the atmospheric pressure pushing the flange. The terminal tube 22 is slidably fitted in the hole of the end plate 11, and is formed by two fastening rings 24 and a sponge wheel 25 only when the pressure is reduced.
2 is pressed against the circular flange 19. Since the vacuum pump is stopped when the suction beam 10 is rotated, the terminal tube 22 is separated from the circular flange 19 by the repulsive force of the sponge 25. Although the embodiment has been described above, it goes without saying that the present invention can be variously changed and applied without changing the gist thereof.

[0012]

According to the present invention, recently, the types, dimensions, and arrangements in a mold for simultaneously molding a plurality of molds in one mold have become diversified, and the suction cup replacement and arrangement change of the demolding device have become frequent. To prevent the productivity from lowering beforehand. The demolding apparatus of the present invention utilizes four peripheral surfaces of the rotatable suction beam so that four types of suction cups having different dimensions and arrangements can be selectively used at any time. For current product types, these four types of suction cup arrangements are sufficient. Further, according to the present invention, the exhaust nozzles of the suction cups on the four surfaces of the suction beam and the four exhaust ports of the circular flange of the suction beam are connected by a pipe, and the suction beam is rotated to use the suction cup on any surface. Even at this time, the exhaust port connected to the suction cup is made to face the intake port of the exhaust pipe in contact with the outer surface of the circular flange, so that the exhaust system can be prevented from becoming complicated due to the replacement of the suction cup.

[Brief description of the drawings]

FIG. 1 is an elevational view of one embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an enlarged elevation view mainly showing a suction beam.

FIG. 4 is a side sectional view of a lower part of FIG. 1;

FIG. 5 is a side view of the lower part of FIG. 1;

FIG. 6 is a sectional view of a terminal pipe of a pressure reducing pipe.

[Explanation of symbols]

 9 Elevator frame 10 Suction beam 19 Circular flange 20 Exhaust port 22 Terminal pipe

Claims (2)

(57) [Claims] 1. different dimensions on each peripheral surface of a horizontal beam having a rectangular cross section;
A suction beam having the suction cups arranged outwardly fixed thereto, and an elevator frame provided with bearings for rotating shafts extending from both ends of the suction beam, a rotary drive and a braking device, and concrete to be removed from the mold in the formwork A demolding device using vacuum suction, wherein the suction cups on the respective peripheral surfaces are appropriately used according to products. 2. The demolding device according to claim 1, wherein the suction beam has a circular flange concentric with the rotating shaft at an end, and a peripheral edge of the circular flange has a peripheral surface of each of the peripheral surfaces. When the four exhaust ports connected to the exhaust pipe for the suction cups are equally distributed on the same circumference concentric with the flange, and when the suction cups on one circumferential surface of the beam face directly below,
A demolding device by vacuum suction, wherein the exhaust port connected to the exhaust pipe communicates with a receiving port of an exhaust pipe in contact with an outer surface of the flange.