JP2754298B2 - Cutting equipment for semi-plastic lightweight cellular concrete - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device for semi-plastic lightweight cellular concrete (hereinafter abbreviated as ALC cake).

[0002]

2. Description of the Related Art Conventionally, there has been known a cutting apparatus which cuts an ALC cake by crossing an ALC cake while reciprocating a tensioned piano wire.
1-174 publication). The outline of an embodiment of cutting the ALC cake by this apparatus will be described below with reference to FIGS. 3 (a) to 3 (c).

That is, in this type of apparatus, FIG.
As shown in (a), piano wire end locking members 52, 53 are mounted on a pair of opposing frames 58, 59 of a frame-type or gate-type frame main body 51 installed to be reciprocally movable left and right. A piano wire 54 is stretched over the piano wire end locking members 52 and 53 by locking the first gripping means 55 and the second gripping means 56 fixed to the ends thereof.

As shown in FIGS. 3 (b) and 3 (c),
ALC cake 5 with frame body 51 reciprocated
When the 7 is passed through the frame main body 51, the ALC cake 57 is cut into a block-shaped or panel-shaped small piece (not shown).

[0005]

However, when the ALC cake 57 is cut using the above-described apparatus, the following problems occur. When the ALC cake 57 moves in the direction of arrow A at a predetermined moving speed and the frame body 51 moves in the direction of arrow B as shown in FIG.
The piano wire 54 cutting the ALC cake 57 is AL
Due to the cutting resistance of the C cake 57, a large tensile load is applied, and the C cake 57 is greatly distorted on the way and near the gripping means 56. Conversely, when the frame body 51 moves in the direction of arrow C as shown in FIG.
Is greatly distorted toward the first gripping means 55. Such a phenomenon occurs many times in the process of cutting the ALC cake 57.

As a result, there is a problem that the piano wire 54 is likely to be broken near the frames 58 and 59. Therefore, when the piano wire 54 receives a predetermined tension load, the second
The tension of the gripping means 56 may be relaxed by a predetermined amount by a relaxing means such as a spring 58, or the piano wire end locking member 52,
Means for improving the contact portion between the piano wire 53 and the piano wire 54 have also been proposed, but there is a limit in reducing the frequency of breakage of the piano wire 54 in a cutting device that reciprocates the piano wire 54. There is a problem.

An object of the present invention is to solve the above-mentioned problems in an apparatus for cutting an ALC cake by reciprocating a piano wire 54.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a piano wire whose end is gripped and tensioned by a first gripping means and a second gripping means, respectively. The first arc part of the first rotating means and the second arc part of the second rotating means provided respectively are half-wound and crossed with the ALC cake while being reciprocated so as to cut the ALC cake. In the cutting device, the first gripping means is provided so as to be displaceable or rotatable at the same time as the first arc portion, and the tension control means is rotatably fixed to the second rotating means in synchronization therewith. And a cutting device for an ALC cake, wherein the cutting device is connected to the second holding means.

[0009]

The piano wire gripped and tensioned by the first gripping means and the second gripping means is wound halfway around the first arc portion of the first rotating device and the second arc portion of the second rotating device. So
Even if the piano wire reciprocates, the deformation of the piano wire in the middle is reduced. As a result, the piano wire is less likely to break. Unlike the tension relaxation means of the prior art, a tension control means capable of setting the tension of the piano wire is incorporated between the second gripping means and the second rotating means of the piano wire, so that a sudden load applied to the piano wire can be reduced. As a result, breakage of the piano wire can be minimized.

[0010]

Next, an embodiment of the present invention will be described with reference to FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) to 2 (c). A frame (not shown) of a main body arranged so as to face in parallel in a device similar to a known cutting device
Is provided with a first rotating means 4 and a second rotating means 6,
Both means 4 and 6 are rotatable synchronously within a maximum range of 30 degrees via separately provided synchronization means. First and second
A first arc portion 5 and a second arc portion 7 each forming a fan-shaped side surface are provided outside the rotating means 4 and 6, and the piano wire 3 for cutting the ALC cake 8 can be wound around those arc surfaces. It has become.

A first gripping means 1 and a second gripping means 2 such as nipples are fixed to both ends of the piano wire 3, respectively. The first gripper 1 is a first arc portion 5 of the first rotating device 4.
When the first rotating means 4 rotates, the first holding means 1 also rotates at the same time. As shown in FIGS. 2 (a) to 2 (c), an arm 12 having an L-shaped side surface is attached to the second rotating means 6, and a lever is provided at a position opposed to the attachment position of the arm 12. A support shaft 13 is provided.

An air cylinder 10 is attached to the tip of the arm 12, while the support shaft 1
The center portion of a lever 14 having a V-shaped side surface is axially attached to 3. The distal end of the piston 15 of the air cylinder 10 is connected to one end of the lever 14, and the second gripping means 2 of the piano wire 3 is locked to the other end.

Therefore, when the second rotating means 6 is rotated,
At the same time, the arm 12 and the air cylinder 10 also rotate. When the air cylinder 10 is actuated, the lever 14 rotates about the fulcrum 16 of the lever shaft 13, and as a result,
The tension of the piano wire 3 can be changed while sliding the piano wire 3 on the arc surface of the second arc portion 7 within the rotation range.

Air circuit 1 communicating with air cylinder 10
As shown in FIGS. 1 (a) and 1 (b), a control device 11 for controlling the pressure of air is incorporated in the middle of 7, and the stroke of the piston 15 is controlled by controlling the pressure. I can do it. If the information on the tension of the piano wire 3 is input and set to the control device 11 based on experience or preliminary experiments within the range of rotation of the lever 14, the tension of the piano wire 3 can be set within the range of variation. , And can be controlled to be constant.

When cutting the ALC cake using the apparatus of this embodiment configured as described above, first, FIG.
As shown in FIG. 2A and FIG. 2A, the first gripping means 1 at one end of the piano wire 3 is locked to the first arc 5 of the first rotating means 4. Then, when the other end side of the piano wire 3 is suspended on the second arc portion 7 and the second gripping means 2 is locked on the lever 14, the piano wire 3 is half-wound around the second arc portion 7. .

Piano wire 3 necessary for cutting ALC cake 8
Is determined in advance by a test, and control information corresponding to the tension is set and input to the control device 11 so that the cylinder 10 is operated. After keeping this state,
1A, and the ALC panel 8 is moved in the direction of the arrow A to intersect the piano wire 3 as shown in FIG.

Then, the piano wire 3 is distorted by the cutting resistance of the ALC panel 8 as shown in FIG. 1A, but the first and second arc portions 5 and 7 and the predetermined rotation range are provided at both ends. The piano wire 3 is less likely to break at the contact portion between the two because the contact is gradual. Further, since a constant air pressure is constantly applied to the cylinder 10 through the control device 11, the process of cutting the ALC cake 8 differs from the cushioning effect of the prior art in that the piano wire 3 is cut. Always takes only a predetermined tension value. as a result,
Breakage of the piano wire 3 can be minimized.

Experiments have shown that using the apparatus of the present invention
When the LC cake is cut with a tension of 115 kgf, the breaking frequency of the piano wire is reduced to 1/10 as compared with the case where the conventional apparatus is used.

Although one embodiment of the present invention has been described in detail, the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of following the basic technical idea of the present invention and not significantly impairing its effects. The present invention can be carried out by changing to the above mode. For example, it is also possible to detect the tension of the piano wire, input the tension value to a computer, and cut the ALC cake through the controller 11 under a predetermined tension within a predetermined range.

[0020]

As described in detail above, the present invention has an excellent effect that the frequency of breakage of a piano wire can be significantly reduced.

[Brief description of the drawings]

FIG. 1 (b) is a schematic view showing a state where a piano wire is attached to an apparatus before cutting an ALC cake in an embodiment of the present invention.

FIG. 1 (a) is a schematic view showing a state of cutting an ALC cake.

FIG. 2 (b) is an enlarged view of a main part showing a state where the end of the piano wire is locked by a second gripping means.

FIG. 2 (a) is an enlarged view of a main part showing a state where an end of a piano wire is locked to a second gripping means and a control device is operated.

FIG. 2 (c) is an enlarged view of a main part showing a state where the end of the piano wire is locked to the second gripping means and the ALC cake is cut.

FIG. 3 (a) is a schematic view showing a main part of a conventional technique.

3 (b) and 3 (c) are schematic diagrams showing a distortion state of a piano wire when the ALC cake is cut.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st gripping means 2 2nd gripping means 3 piano wire 4 1st rotating means 5 1st circular part 6 2nd rotating means 7 2nd circular part 8 Semi-plastic lightweight cellular concrete 9 Tension control means 10 Air cylinder 11 Control device

Claims (3)

(57) [Claims] A piano wire (3) whose end is gripped and tensioned by each of a first gripping means (1) and a second gripping means (2) is provided on each of the ends. The first circular part (5) of the rotating means (4) and the second rotating means (6)
A cutting device that cuts the lightweight cellular concrete by crossing the semi-plastic lightweight cellular concrete (8) while making a half-winding and reciprocating motion around the second arc portion (7). Means (1) is the first
A tension control means (9) which is provided so as to be displaceable simultaneously with the arc portion (5), and is rotatably fixed to the second rotation means (6) in synchronization therewith; (6) A cutting device for semi-plastic lightweight cellular concrete, which is connected to (6). 2. A cutting device for semi-plastic lightweight cellular concrete according to claim 1, wherein said tension control means (9) comprises an air cylinder (10) and a control device (11) for controlling air pressure on the cylinder. 3. A synchronizing means for synchronizing the first turning means (4) and the second turning means (6) so as to be rotatable between the first turning means (4) and the second turning means (6). Cutting equipment for semi-plastic lightweight cellular concrete.