JPH0584731A - Cutting device for semiplastic body - Google Patents

Abstract

PURPOSE:To make it possible to precisely cut a semiplastic body such as lightweight cellular concrete before being cured and bore a window-like opening by providing a truck provided with cutting tooth which are movable reciprocally in a vertical direction and pivotable in a horizontal direction so as to be movable over the semiplastic body in longitudinal and lateral directions. CONSTITUTION:A semiplastic body 1 is placed on a horizontal frame 3. Rails 4 are fixed on both edges of the frame 3 in the longitudinal direction thereof, on which rails a portal frame 6 is provided so as to be reciprocally movable. A truck provided with a cutting blade 20 is provided so as to be movable on a pair of rails 15 installed on the frame 6 over the entire width of the frame 6. The cutting blade 20 has a rectangular shape and its upper part is held by a vertically movable cylindrical holder 21 so as to be reciprocally moved in a vertical direction by means of a motor driven crank 26a and also rotated by a rotary cylinder. As a result, the semiplastic body can be precisely cut off in longitudinal and lateral directions and a window-shaped opening can be bored.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a semi-plastic material before steam curing in a manufacturing process of lightweight cellular concrete, precast concrete, etc., which can be accurately and efficiently cut into a predetermined size and has a window-shaped opening. The present invention also relates to a cutting device for a semi-plastic material which can be easily pierced.

[0002]

2. Description of the Related Art Conventionally, when lightweight cellular concrete is placed in a semi-plastic state after a reinforcing material such as a reinforcing bar is arranged in a mold in a predetermined manner and a raw material slurry is injected and foamed. The mold is removed, the whole surface is cut into a predetermined size and then cut into a predetermined thickness, and the autoclave is cured and cured to obtain a product.

However, as a method for cutting a semi-plastic material, generally, a rectangular parallelepiped semi-plastic material is placed on a horizontal board, and a steel wire and a semi-plastic material are horizontally arranged by horizontally or vertically arranged steel wires. It moves relative to and is cut. In addition, when an opening such as a window is provided in a large-sized plate having a width of 90 cm or more, the frame of the opening having a predetermined size is arranged and fixed in the mold and the raw material slurry is injected to form the opening. The method of making it known is known.

[0004]

However, when a semi-plastic material is cut with a steel wire, it is possible to cut the entire horizontal or vertical surface, but it is impossible to cut the opening between the plates. There is. Further, when the opening frame is fixed in the mold to form the opening, there is a problem that it takes time to design, assemble and remove the frame, and further, the corners of the opening and the like. There is a problem that cracks and cracks are likely to occur, there is a problem in the smoothness of the side surface and dimensional accuracy, and cutting may be necessary before shipping the product.

An object of the present invention is to provide a cutting device capable of accurately and continuously cutting a rectangular parallelepiped semi-plastic material in both lengthwise and widthwise directions with a predetermined length and width, and also capable of forming an opening. It is intended.

[0006]

Means for Solving the Problems As a result of repeated studies to solve the above problems and achieve the above objects, the present inventors have found that they can reciprocate in the direction of the central axis and rotate around the central axis. The present invention has been completed by finding that the object can be achieved by providing a trolley having a movably mounted cutting blade so as to be movable in the vertical and horizontal directions on a gantry on which a semi-plastic material is placed. .. That is, the present invention is a holder rotatable about a central axis and capable of moving up and down in the central axis direction,
A rectangular plate-shaped cutting blade attached to the holder so as to reciprocate in the direction of the central axis, above the frame on which the semi-plastic material is placed, by a lengthwise traveling mechanism and a traverse mechanism over the entire length and width of the semi-plastic material. A semi-plastic cutting device provided with a carriage provided with a holder to which the cutting blade is attached and which is movable.

[0007]

When the cutting blade is lowered from the upper surface to the lower surface of the portion to be cut of the semi-plastic material horizontally placed on the gantry and the tip of the cutting blade reaches near the lower surface of the semi-plastic material, By moving the cutting blade in the direction in which the saw-toothed blade faces while reciprocating in the vertical direction, the semi-plastic material can be cut with high accuracy and at high speed. Further, since the cutting blade is rotatable about the central axis, the direction of the cutting blade can be changed and cutting can be performed in a desired direction, and not only a square opening but also an opening having a curvature can be formed. It can be formed.

[0008]

Embodiments of the present invention will now be described with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of the device of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a side view of the same, and FIG. 4 is an embodiment of a cutting mechanism in the device of the present invention. FIG. 5, FIG. 5 is a cross-sectional view taken along the line AA ′ of FIG. 4, FIG. 6 is an explanatory view showing an example of a driving unit of a cutting blade in the device of the present invention, FIG.
FIG. 7 is an explanatory view showing an example of a cutting operation for forming an opening using the device of the present invention.

Reference numeral 1 denotes a semi-plastic material, which is formed to have a thickness of 15 cm, a length of 400 cm and a width of 200 cm, and is placed in a mold 2 and placed on a horizontal mount 3. There is. A rail 4 is fixed on the pedestal 3 along both sides of the pedestal 3 in parallel with the longitudinal direction of the pedestal 3. Reference numeral 5 denotes a rack, which is fixed to both sides of the gantry 3 on the outside of the long side. Reference numeral 6 denotes a gate-shaped frame portion, which is formed, for example, by combining U-shaped members so as to be able to laterally straddle the mold frame 2, and is lengthened on the rail 4 by a lengthwise traveling mechanism 7 described below. It can be moved back and forth in the vertical direction. Reference numeral 7 denotes a lengthwise traveling mechanism, which is composed of, for example, the following parts. That is, the wheels 6a are provided at the lower ends of the four corners of the frame 6 and roll on the rails 4. 8 is a pinion,
The racks 5 fixed to the pedestal 3 are rotatably supported on the lower ends of the vertical shafts 8a, which are provided on the lower ends of the frame 3 in the width direction of the pedestal 3 and engage with the horizontal shafts 8b via bevel gears 9, respectively. It is meshed. Reference numeral 10 denotes a traveling motor, which is fixedly mounted on the frame portion 6 and transmits the rotational force to the horizontal shaft 8b-bevel gear 9-vertical shaft 8a-pinion 8 via the chain 11. The longitudinal traveling mechanism is configured as described above, and by rotating the traveling motor 10 in the forward and reverse directions, the pinion 8 also rotates in the forward and reverse directions, and the frame portion 6 can reciprocate on the rail 4. Reference numeral 12 denotes a trolley in which a frame 12a is provided upright, a cutting blade 20 to be described later is provided, and the traverse mechanism 13 enables the frame 12 to move over the entire width of the frame portion 6 and thus the entire width of the semi-plastic body 1. There is. A traverse mechanism 13 is composed of the following parts. That is, 14 is a channel, which is fixed to the frame portion 6 as a pair that is horizontally parallel to both sides in the width direction orthogonal to the rail 4. 15
Are rails and fixed to the upper surface of the channel 14 in parallel as a pair. Reference numeral 16 denotes a pinion shaft, which has pinions 18 fixed to both ends thereof and is provided on both lower sides of the truck 12 in a direction orthogonal to the rail 15. 17
Is a rack, which is fixed to the lower surface of each channel 14 and meshes with the pinion 18.
Reference numeral 19 denotes a traverse motor, which is fixed to the carriage 12 and transmits its rotational force to the pinion shaft 16-pinion 18 via the chain 19a to mesh with the rack 17 to reciprocate the carriage 12 on the rail 15 in the width direction. It is able to move.
The traverse mechanism 13 is configured in this way, and by rotating the traverse motor 19 forward and backward, the pinion 18 also rotates forward and backward,
The dolly 12 can reciprocate on the rail 15.
A cutting blade 20 has a rectangular flat plate shape having a length longer than the thickness of the semi-plastic material 1 to be cut,
A horizontal linear blade 20a is provided at the tip portion, and a serrated blade 20b is provided on at least one of the vertical edges. If the saw-tooth blades 20b are provided on both sides of the vertical edge of the cutting blade 20, it is possible to cut in both directions, which is convenient.
Further, the thickness of the blade, the size and angle of the saw blade 20b may be appropriately selected according to the property of the semi-plastic body 1 to be cut. Reference numeral 21 denotes a holder, which is formed in a cylindrical shape and has the upper portion of the cutting blade 20 fixed thereto by a bolt 21a.
22 is a screw shaft, which is a frame 12a
It is connected to the lifting motor 23 fixed to the upper part at the upper part, and is vertically installed so as to be able to rotate forward and backward. Reference numeral 24 denotes an arm, one of which is fixed to the holder 21 and the other of which is screwed to the vertical screw shaft 22 and the female screw portion 24a.
The cutting blade 20 held by the holder 21 can be moved in the vertical direction by rotation of the lifting motor 23. Reference numeral 25 denotes a cutting blade reciprocating mechanism, in which a crank 26a driven by a motor 26 is axially fixed to the upper portion of the cutting blade 20 and is housed in the holder 21. It is designed to reciprocate. Reference numeral 27 denotes a guide portion which is vertically fixed to the frame 12a as a pair and slidably supports the base portion 24b of the arm 24. Reference numeral 28 denotes a rotary cylinder, which is attached to the frame 12a above the holder 21 so that the holder 21 can be rotated 180 degrees in the horizontal direction with respect to the arm 24.

Since the apparatus of the present invention is constructed in this way, when cutting the semi-plastic body 1 in the longitudinal direction, first, the elevating motor 23 and the rotating cylinder 28 are operated to cut the cutting blade 20 in half. It is positioned above the surface of the plastic body 1 and adjusted so that the flat surface of the cutting blade 20 is parallel to the rail 4. It is made to stand by (left side in FIGS. 1 and 2). On the other hand, the semi-plastic material 1 is placed at a predetermined position on the pedestal 3 so that its length direction is parallel to the rail 4.

Next, the traveling motor 1 of the longitudinal traveling mechanism 7
When 0 is operated in the forward direction (right side in FIGS. 1 and 2) and the rotational force is transmitted to the pinion 8 through the chain 11-horizontal shaft 8b-bevel gear 9-vertical shaft 8a, the pinion 8 is moved to the outside of the rail 4. Since it is meshed with the rack 5 which is fixed, the frame portion 6 is moved to a predetermined position of the semi-plastic body 1. Then, the traverse motor 19 is operated to activate the chain 19
The carriage 12 is moved to a desired position above the gantry 3 by rotating the pinion 18 via a, and the semi-plastic body 1 is positioned in the width direction perpendicular to the length direction.

Next, the elevating motor 23 is operated and the screw shaft 22 is rotated to lower the cutting blade 20 along the guide portion 27, and the tip end portion is made of the semi-plastic body 1.
When it reaches near the lower surface of, stop. Then, the holder 21
When the traveling motor 10 is driven to move the frame portion 6 on the rail 4 while operating the motor 26 of the cutting blade 20 to reciprocate the cutting blade 20 up and down, the semi-plastic body 1 is moved by the serrated blade 20b of the cutting blade 20. It is cut in the length direction. It is preferable that a hood 29 be provided around the cutting blade 20 and the chips generated at this time be sucked into a dust collector (not shown).

After cutting to the other end of the semi-plastic material 1, the motor 26 is stopped, the reciprocating motion of the cutting blade 20 is stopped, the traveling motor 10 is stopped, and the elevating motor 23 is reversely rotated to cut. Pull up the blade 20 above the surface of the semi-plastic material,
The traveling motor 10 is reversely rotated to return the frame portion 6 to the original position at the time of starting the cutting, and the first cutting is completed. This operation is repeated a required number of times, and one semi-plastic material 1 is transferred to the steam curing step as a predetermined number of semi-plastic materials having a predetermined width.

In the case of cutting in the lateral direction, the rotating cylinder 28 may be operated to rotate the cutting blade 20 by 90 degrees, and the carriage 12 may be moved in the lateral direction by the traverse motor 19 for cutting.

The semi-plastic body 1 can be cut into an arbitrary shape by combining the cutting in the lengthwise direction and the cutting in the lateral direction. That is, when the rectangular opening 30 is formed in the semi-plastic body 1, first, the traveling motor 10 and the traverse motor 19 are controlled as in the case of cutting in the lengthwise direction, as shown in FIG. , So that the trailing edge of the cutting blade 20 is located above the corner 30a of the desired opening 30 of the semi-plastic body 1. Next, the elevating motor 23 is operated to lower the cutting blade 20, the semi-plastic body 1 is pushed and intruded by the linear blade 20a, and the elevating motor 23 is stopped when the tip reaches near the lower surface of the semi-plastic body 1. To do.
Then, the motor 26 of the holder 21 is operated to reciprocally move the cutting blade 20 and the traveling motor 10 is operated to move the frame portion 6 on the rail 4 by a predetermined dimension.
Cut to position b. Here, the elevating motor 23 is operated to pull up the cutting blade 20 once above the surface of the semi-plastic body 1, and the rotating cylinder 28 is operated to rotate the cutting blade 20 by 90 degrees to align the cutting blade 20 with the position of 30c. It is lowered and stopped when the tip reaches near the lower surface of the semi-plastic material 1. This time, the traverse motor 19 is operated to move the carriage 12 in the lateral direction to cut it to the position of 30d. After that, the square opening 30 can be formed by repeating the same operation as described above.

Further, a curved line can be cut by comprehensively controlling the rotation angle of the cutting blade 20 and the running in the lengthwise direction and the running in the lateral direction.

These operations may be remotely controlled by a control panel, or may be automatically controlled by connecting to a sequential controller or a computer.

[0019]

According to the present invention, a carriage having a linear blade at its tip and a cutting blade having a serrated blade on its side edge so as to be reciprocally and rotatably mounted can reciprocate on a semi-plastic body in both vertical and horizontal directions. Since the semi-plastic material is provided as described above, the length and width of the semi-plastic material can be cut into desired dimensions with high accuracy and efficiency, and further excellent effects such as the ability to perforate window-shaped openings can be recognized.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is an explanatory view showing an example of a cutting mechanism in the device of the present invention.

5 is a cross-sectional view taken along the line AA ′ of FIG.

FIG. 6 is an explanatory view showing an example of a driving unit of a cutting blade in the device of the present invention.

FIG. 7 is an explanatory view showing an example of a cutting operation for forming an opening using the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Semi-plastic body 3 Frame 6 Frame part 6a Wheel 7 Length direction traveling mechanism 12 Car body 13 Traverse mechanism 20 Cutting blade 20a Straight blade 20b Serrated blade 21 Holder 23 Lifting motor 25 Cutting blade reciprocating mechanism 26 Motor 26a Crank 28 Rotating cylinder

Claims (2)

[Claims] 1. A holder rotatable about a central axis and vertically movable in the central axis direction, a rectangular plate-shaped cutting blade attached to the holder so as to reciprocate in the central axis direction, and a semi-plastic material. And a trolley provided with a holder to which the cutting blade is attached, the trolley being movable over the entire length and width of the semi-plastic body by the longitudinal traveling mechanism and the traverse mechanism. Body cutting device. 2. The rectangular plate-shaped cutting blade is provided with a horizontal linear blade at its tip and a saw-tooth blade at at least one vertical edge thereof. Cutting device for semi-plastic material.