JP2550910Y2 - Cutting equipment for lightweight aerated concrete before curing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cutting lightweight cellular concrete before curing by steam or the like to a desired thickness.

[0002]

2. Description of the Related Art Conventionally, when light-weight aerated concrete before curing using steam is cut to a desired thickness, as shown in FIG.
Is placed on the gantry 10, and the four side plates 1 a of the form are opened outwardly. Was measured, and the height of the cutting device blade 8 was manually set so as to cut to a desired thickness.

[0003] However, this work is not only time-consuming, but also requires skill and has poor dimensional accuracy after cutting.

[0004]

SUMMARY OF THE INVENTION The present invention provides an apparatus capable of automatically measuring a dimension from a reference point of a cutting device to a bottom surface of lightweight cellular concrete before curing and positioning a cutting blade. It is.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a lightweight pre-cured aerated concrete in a formwork placed horizontally on a gantry and a cutting blade disposed above the concrete are relatively horizontally moved. In a device for cutting the top surface of lightweight foam concrete before curing to a desired thickness, the dimensions from the reference point of the cutting device to the bottom surface of lightweight foam concrete before curing are measured on a magnescale, and cutting is started based on the measurement results. A cutting device for lightweight cellular concrete before curing, wherein a positioning device for setting the height of the cutting blade is provided before.

[0006]

According to the present invention, the lightweight air bubble concrete before curing in the formwork horizontally placed on the gantry and the cutting blade disposed above the concrete are moved horizontally. In a device that cuts the top surface of concrete to a desired thickness, the dimensions from the reference point of the cutting device to the bottom surface of the lightweight aerated concrete before curing are measured on a magnescale, and based on the measurement results, the cutting blade is cut before starting cutting. Since the positioning means for setting the height is provided, it is possible to perform the cutting with high dimensional accuracy after the cutting without requiring any skill as in the related art, requiring no trouble.

[0007] Magnescale is a displacement sensor that utilizes magnetism, and since the measurement result is converted into an electric quantity, an output signal can be directly input to the controller.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. 1 and 2 are a front view and a side view of the cutting device of the present invention. A formwork 1 in which a lightweight aerated concrete 2 before curing by water vapor is stored is placed on a plurality of columnar gantry 10 having the same height. A cutting device 7 for cutting over a range is provided.

The cutting device 7 has a screw-shaped cutting blade 8 suspended from a carriage 11 so as to be able to move up and down horizontally in a direction perpendicular to the running direction. Wheels 11a are arranged at four corners of the cart 11, and two pairs of chains 13,
The wheel 1 is connected via a shaft 14 and pinion gears 15 and 15a.
1a is driven to be able to run horizontally on the rail 12 in the longitudinal direction of the lightweight cellular concrete 2 before curing.

The cutting blade 8 is slidably suspended on two slide rails 16 fixed vertically to the carriage 11,
The lifting motor 3 mounted on the carriage 11 rotates a nut screwed to the screw shaft 17 so as to be able to move up and down. The cutting blade 8 has a screw shape, and is rotated in one direction by the traveling motor 6,
The upper surface of the lightweight cellular concrete 2 before curing is cut, and the cutting chips are transferred to the left end portion of FIG. 1 through the gutter 9 and fall into the lower pit 18.

The positioning device 4 is mounted vertically downward from the front of the carriage 11 in the traveling direction, and a magnescale 20 is mounted below the base air cylinder 19 and penetrates the magnescale 20. Detection rod 2
1 is engaged with the air cylinder 19 so as to be able to move up and down. When the detection rod 21 comes into contact with the bottom surface of the mold 1 before cutting the lightweight cellular concrete 2 before curing, the distance from the reference point to the bottom surface is detected by an electric signal of the magnescale 20. This signal is input to a sequencer of a controller (not shown), which is compared with a previously input distance from the reference point to the cutting surface, and the difference is calculated. The blade 8 is set at a desired height position.

The operation of the thus constructed device of the present invention will be described below. First, the cutting device is waiting at a position where it does not hinder the loading of the formwork. Then, the detection rod 21 of the positioning device 4 is pulled up, and the controller inputs the distance from the reference point of the lightweight cellular concrete before curing to the cut surface. Next, the form 1 is placed horizontally on the gantry 10 by a crane or the like (not shown), and the four side plates 1a are opened. Then, the traveling motor 5 is started, and the bogie 11 is advanced and temporarily stopped until the positioning device 4 of the cutting device 7 is positioned above the end of the mold 1.

Then, the air cylinder 19 is operated to bring the detection rod 21 into contact with the bottom surface of the mold 1. Thus, the distance from the reference point to the bottom surface is detected from the electric signal of the magnescale 20. This signal is appropriately converted as required and then input to the sequencer of the controller. The distance is compared with the distance from the reference point to the cutting surface, which is input in advance, and the difference is calculated. The cutting blade 8 is set at a desired height position by driving several times.

Next, when the running motor 6 is started to rotate the cutting blade 8 and the running motor 5 is started again to move the cart 11 forward, the lightweight cellular concrete 2 before curing has a desired width. Is cut into When the cutting is completed over the entire length, the traveling motors 5 and 6 are stopped to complete the work. By repeating this operation, a large number of lightweight cellular concrete before curing can be sequentially cut to desired dimensions.

[0015]

[Effects of the Invention] As described in detail above, the present invention relatively moves the lightweight cellular concrete before curing in the formwork placed horizontally on the gantry and the cutting blade disposed above the concrete. A device that cuts the upper surface of this lightweight cellular concrete before curing to the desired thickness while measuring the dimensions from the reference point to the bottom of the lightweight cellular concrete before curing on a magnescale, and automatically performs the cutting based on the measurement results. Since the positioning mechanism for setting the height of the blade is provided, it is possible to perform cutting with high processing accuracy without requiring any skill and without any trouble.

[Brief description of the drawings]

FIG. 1 is a front view of the cutting device of the present invention.

FIG. 2 is a side view of the cutting device of the present invention.

[Explanation of symbols]

 Reference Signs List 1 Formwork 1a Formwork side plate 1b Formwork bottom surface 2 Lightweight cellular concrete before curing 3 Lifting motor 4 Positioning device 5 Traveling motor 6 Traveling motor 7 Cutting device 8 Cutting blade 9 Gutter 10 Mount 11 Cart 11a Wheel 12 rail 13 Chain 14 Shaft 15 Pinion Gear 15a Pinion Gear 16 Slide Rail 17 Screw Shaft 18 Pit 19 Air Cylinder 20 Magnescale 21 Detection Rod

Claims (1)

(57) [Scope of request for utility model registration] 1. A lightweight cellular concrete before curing in a formwork placed horizontally on a gantry and a cutting blade disposed above the concrete while horizontally moving relative to each other. In a device for cutting the top surface to a desired thickness, the dimensions from the reference point of the cutting device to the bottom surface of the lightweight aerated concrete before curing are measured on a magnescale, and based on the measurement results, the height of the cutting blade before starting cutting is measured. 1. A cutting device for lightweight cellular concrete before curing, comprising a positioning device for setting the temperature.