JPS629053Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a segment demolding machine used when disassembling or assembling a centrifugal molding formwork for segments, and more specifically, the present invention relates to a segment demolding machine that is used to dismantle or assemble a centrifugal molding form for segments. A rotating plate is provided at one end of the shaft to which the centrifugal force forming form for the segment can be detachably attached, and a braking mechanism is provided at the other end of the shaft to rotate the shaft and stop it at a predetermined position. The present invention relates to a segment demolding machine characterized in that it is constructed by attaching a drive fixing device comprising an electric motor and a sprocket. The applicant has already developed a technology for manufacturing segments using the centrifugal force forming method and a molding frame that makes this centrifugal force forming possible, and has applied for a patent or utility model registration. In doing so, it is difficult to dismantle the ring-shaped formwork with the segments still housed, and to assemble each formwork piece after removing the segments from the mold, which is inefficient. I understand. Therefore, although a highly efficient demolding machine was used in some parts of the above-mentioned application, the present invention further improves this, and in particular, the centrifugal molding mold for the segments can be removed while the segments are housed. The present invention relates to a segment demolding machine that can be easily disassembled and reassembled to its original state after the segments have been demolded. To specifically explain one embodiment of the demolding machine according to the present invention with reference to the drawings, in FIGS. 1 and 2,
Reference numeral 1 denotes a frame, and a shaft 3 is rotatably attached to the upper part of the frame via a bearing 2. Reference numeral 4 denotes a ring-shaped rotary plate that can be attached to the side surface of the segment centrifugal force forming form 5 via bolts 6, and is attached to one end of the shaft 3 via a cross-shaped support 7. Also, the rotating plate 4 has an outer frame 8.
Large diameter attachment/detachment holes 11 are drilled at predetermined positions for attaching and detaching the attachment bolts 9 and the joint attachment bolts 10, respectively. Further, at the other end of the shaft 3, there is provided a drive and fixing device for controlling the rotation and fixing of the shaft 3, which includes a sprocket 12, a chain 13, an electric motor 14, and the like.

In the figure, 15 is a partition plate interposed between the outer frames 8, and 16
are donut-shaped side plates detachably attached to both sides of the outer frame 8.

When using the demolding machine according to the present invention, as shown in Figs. 2 to 4, the segments 17 that have been cured within the formwork 5 are vertically suspended by a crane or the like while remaining inside the formwork 5. The formwork 5 is then lifted up by an elevator or an elevator and transported to a demolding machine, one side plate 16 is brought into close contact with the rotary plate 4, and the formwork 5, the rotary plate 4, and the partition plate 15 are connected with bolts 6. In this state, the shaft 3 is rotated to move the formwork 5 so that a part of the outer frame 8 of the formwork 5 is at the lowest position, and the shaft 3 is fixed by the drive fixing device, and then the shaft 3 is moved to the lowest position. By dismantling the outer frame 8 from the side plates 16 and partition plates 15, segments 17 are formed on the inner surface of the outer frame 8.
It is possible to take out the container while it is still placed thereon using an elevator, mobile cart, forklift, etc. prepared below in advance. After completing the dismantling of the outer frame 8 that has been at the bottom until now, rotate the shaft 3 a certain amount again, bring the next outer frame 8 to the bottom and fix it, and in this state, proceed as described above. By repeating the operation, the next segment 17 can be taken out together with the outer frame 8. By repeating this operation, several outer frames 8 constituting the formwork 5 can be sequentially dismantled, and the segments 17 stored in them can be taken out each time. When reassembling the formwork 5, as described above, attach one side plate 16 of the formwork 5 to the rotary plate 4 of the demolding machine.
and the partition plate 15 are attached, the outer frame 8 is sequentially inserted between these and bolted, and one side plate 16 is further bolted to the side of the outer frame 8 and the partition plate 15. It can be easily assembled and configured. In the figure, 18 is a joint plate provided on the segment 17, 19 is a core, and 20 is an anchor bar. In the above embodiment, the rotary plate 4 and the formwork 5 are fixed by screwing the bolts 6 into the side plate 16 and the partition plate 15, but if the support of the formwork 5 by the rotary plate is weak, As shown in FIG. 5, it is also possible to attach a partition plate bracket 21 to the support column 7 so as to support the partition plate 15 of the formwork 5.

As mentioned above, the demolding machine according to the present invention has a rotary plate capable of supporting the centrifugal force molding form for segments attached to one end of the shaft which can be rotated and fixed by the drive fixing device. As the formwork is attached, the rotary plate is sequentially rotated to sequentially dismantle the formwork and the built-in segments can be reliably taken out, and it is also easy to assemble and configure the formwork once it has been dismantled. In addition to being extremely easy to work with, there is no risk of damage as no excessive force is applied during disassembly, and the disassembly and assembly does not take up much space.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of the present demolding machine, and Figure 3
4 and 4 are explanatory diagrams of use, and FIG. 5 is an explanatory diagram of another example. 2 is a bearing, 3 is a shaft, 4 is a rotating plate, 5 is a formwork, 7 is a column, 8 is an outer frame, 15 is a partition plate, 16 is a side plate, 17 is a segment, and 21 is a bracket.

Claims (1)

[Scope of utility model registration request] While supporting laterally the molding frame 5, in which several outer frames 8 for segment molding and a partition plate 15 are removably attached via bolts between two donut-shaped side plates 16, the mold is moved. In a segment demolding machine that can sequentially assemble or disassemble the frame 5 into each outer frame 8,
A rotary plate 4 on which a shaft 3 is rotatably mounted on the pedestal 1 via a bearing 2, and a segment centrifugal force forming form 5 can be detachably fixed to one end of the shaft 3 via a cross-shaped support 7. The shaft 3 is further provided with a drive fixing device comprising an electric motor 14 and a sprocket 12 equipped with a braking mechanism capable of rotating the shaft 3 and stopping it at a predetermined position at the other end of the shaft 3. Segment demolding machine.