JPS645523B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the production of lightweight cellular concrete construction members in the form of small blocks or plates from semi-plastic concrete blocks formed using large rectangular forms. The present invention relates to a method and an apparatus used when turning the foam so that it is standing upright with the narrow side facing down, and cutting off the side portion of the foam surface to level the side surface.

In side leveling, where a concrete block is stood up with its narrow side facing down and the foamed surface side is cut off, the scraps created by making cuts in the side of the block using a vertical cutting steel wire naturally become thicker. Since the blocks did not fall and were spread widely in the length and height directions of the blocks, even if workers tried to remove them manually, they were unable to do so, and there was a risk of damaging the side surfaces of the blocks. In addition, when the concrete block is high and the steel wire cut in the vertical direction is supported through support pieces at several points in the middle in order to improve cutting accuracy, the scraps are divided into multiple pieces vertically by the middle support pieces. The removal was inefficient as it had to be done sequentially from the top to the bottom and could not be done all at once.

The present invention was devised to solve the above-mentioned conventional problems.

EMBODIMENT OF THE INVENTION Hereinafter, the apparatus of the present invention will be explained with reference to illustrative embodiments.

The device of the present invention comprises a block transfer means A for moving a concrete block M in the longitudinal direction with its narrow side facing down, and a side cutting machine B disposed on the concrete block transfer side of the block transfer means A.
and a waste removal machine C.

The block transfer means A includes a rail 1 and a rack 2 provided on a machine foundation via a frame, a movable trolley 4 equipped with a pinion that engages with the rack 2 and its drive device 3 on the rail 1, and a movable trolley 4 that is , connected to a movable trolley 5 on which a semi-plastic concrete block M formed by a large rectangular form and turned so that its narrow side faces downward is placed and supported, and the concrete block M is moved forward by the operation of the drive device 3. It is configured to allow

The side cutting machine B straddles the rail 1 and cuts the gate-shaped frame 6.
and a pair of upper and lower steel wire fixtures 7 on the left and right legs thereof, and a plurality of support pieces (not shown) equally distributed between them.
are provided protruding from the opposite side of the leg, and the upper and lower steel wire fittings 7
In between, a vertically cut steel wire 8 is stretched, with the middle supported by the support piece.

The scrap removal machine C is provided with a pair of upper and lower brackets 9 on one leg of the frame 6 so as to be located on the foamed surface side of the concrete block M, and a vertical rotary scraper 10 is installed between these brackets. . The rotary scraper 10 has a shaft 11
A wing-shaped scraper main body 12 is attached radially to the circumferential surface of the blade. Furthermore, as shown in FIG. 3, for example, it is preferable that the scraper main body 12 is divided at positions corresponding to the intermediate support pieces of the cut steel wire 8 and shifted in the circumferential direction of the shaft, and the scraper main body 12 is connected to a drive device ( (not shown), the foamed surface of the concrete block M is rotated counter to the conveying direction of the concrete block M, and at this time, the foamed surface of the concrete block M enters into the vicinity of the cut 13 made by the cutting steel wire 8 and is separated by the cut 13. The rotating tip of the scraper body 12 is slightly retracted from the cut steel wire 8 so that the side scraps 14 are compressed and extruded outward to be peeled off. Further, the tip of the scraper main body 12 is designed to remove the debris 14 in order to strengthen the scraping action of the debris 14.
is bent on the coming side. In addition, 15 is a block rear support part provided on the movable cart 4, and supports the rear side of the concrete block M so as not to interfere with the cut steel wire 8 when the block passes. This is to ensure that there are no omissions during the process.

To explain the method of the present invention using such an apparatus of the present invention, first, as shown in FIG. 1
Move relative to 0. In this case, cuts 13 are made by cut steel wires 8 on the foamed surface side of the concrete block M and on both sides on the opposite side. The thickness of the waste 14 generated by this has to be thicker on the foamed surface side, but since the forming condition is good on the opposite side, if it is made as thin as possible, the waste 14 can be removed by the intermediate support piece of the cut steel wire 8. Coupled with the fact that it is divided into upper and lower parts, the waste 14 on the opposite side of the foamed surface side
will fall naturally and be easily brushed off by workers if necessary. On the other hand, even if the debris 14 on the foamed surface side is divided into a plurality of upper and lower parts, it is too thick to naturally fall, and it is not easy to brush it off without damaging the side surface 15 of the block.

However, when moving carts 4 and 5 are moved further,
As shown in FIG. 5, the scraper main body 12 of the rotary scraper 10 enters into the vicinity of the notch 13 in the opposite direction to the block transport direction, and actively separates the foamed surface side debris 14 of the concrete block M from the block side surface 15. , the debris 14 falls off due to its own fragility. At that time, if the wing-shaped scraper body 12 is installed in multiple stages as shown in Fig. 3,
Since the scraper body 12 hits each of the upper and lower divided pieces with a time lag, they fall off without damaging the side surface 15 of the block.

In this case, a concave portion is formed during molding of the concrete block M so that the lower steel wire fixture 7 enters the lower side of the concrete block M for cutting the block with the cutting steel wire 8, and so that the cutting waste 14 can easily fall off. Recesses 16 are formed in advance at the lower portions of both sides using pieces (not shown). This recess 16 is removed by side leveling as described above.

As described above, the method of the present invention has a simple structure in which the cut is made using a cutting steel wire and the scraps separated by the cut are removed by a scraper during the conveyance process of the concrete block. Therefore, the side surface leveling can be done easily, reliably, and efficiently, and it is suitable for incorporating into the manufacturing method of lightweight cellular concrete construction members.

Further, as described above, the apparatus of the present invention is suitable for carrying out the method of the present invention, and due to its structure, maintenance is easy and the equipment cost is low.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view showing the overall configuration, Fig. 2 is an enlarged front view of main parts, Figs. 3 and 4 are a perspective view and a plan view of the rotary scraper, and Fig. 5 is a plan view for explaining the operation. be. A...Block transfer means, B...Side cutting machine,
C...Scrap remover, 1...Rail, 2...Rack, 3
... Drive device, 4, 5 ... Moving trolley, 6 ... Frame, 7 ... Steel wire fixture, 8 ... Cutting steel wire, 9 ...
... Bracket, 10 ... Rotary scraper, 11
...Shaft, 12...Scraper body, 13...
...Notch, 14...Scrap, 15...Block rear support portion, 16...Recess.

Claims (1)

[Scope of Claims] 1. A semi-plastic concrete block formed by a large rectangular form and turned so that the narrow side faces down, and a vertical cutting steel wire and rotary scraper positioned on the foamed surface side of the block. The cutting steel wire is moved in the length direction of the concrete block to make a cut in the side of the concrete block, and the scraps separated by the cut are removed by the rotary scraper. A method for leveling the foamed surface of semi-plastic concrete blocks. 2. A block transfer means for moving the concrete block in its length direction with its narrow side facing down, and a vertical cutting steel located on the foamed surface side of the block along the line along which the concrete block M is moved by the block transfer means. and a scrap removal machine equipped with a rotary scraper that is shifted from the cut steel wire in the forward direction of the concrete block movement direction and outward of the movement line, and the rotary scraper rotates. A device for leveling the foamed surface side of a semi-plastic concrete block, characterized in that the tip is slightly retracted from the cut steel wire.