JPS58202715A - Saw cutter - Google Patents

Abstract

PURPOSE:To prevent the generation of a burr, by providing a main saw cutter sawing a sawed material and a subsaw cutter previously engraving a saw cut groove in an expected final saw cut area of a saw cut part in which the saw material is expected to be cut by the main saw cutter. CONSTITUTION:A main saw cutter 13 is arranged to the front of a saw cut material 11 located in a cutting position. A subsaw cutter 16 is arranged to the back side below the material 11. The cutter 16 saws to groove an expected final saw cut area 17 in a saw cut part expected to be cut by the cutter 13 through operation of a feed cylinder device 19. Then the cutter 13 saws the material 11 by operation of a cylinder 15. Because the saw cut groove 17 is previously formed, a burr is never generated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sawing device that embrittles heat insulation material by means of a sawing section.

Rolled round pieces, square pieces, etc. are generally cut into predetermined lengths using a shearing machine or a saw cutter. It is possible to simultaneously shear a material to be sawed or to shear a moving material to be sawed, and the production capacity is high, but there is a limit to the cross-sectional shape and dimensions that can be cut at 1aT, and there is a deformation called blur after shearing. This causes the sheared part of the product to need to be cut again. Therefore, a saw cutter has conventionally been used as a cutting device suitable for shipping a sawed material immediately after cutting.

However, in the case of using a saw cutter, as shown in FIGS. 1 and 2, the thinner part of the material 1 to be sawed as the final sawing area is cut when the blade 2 of the saw cutter cuts. The sacred treasure is destroyed by the pushing force of the saw cut portion, and remains in an adhesive pattern on the outer periphery of the saw cut end surface of the saw cut portion, resulting in an uncut portion called a so-called burr 3. The burr 3 increases as the usage time of the saw blade 2 increases, and in some cases, the burr 3 may be formed on about 1/3 of the total outer peripheral edge length of the round piece. Since such burrs 3 are dangerous in the subsequent handling of the broken line cut material 1, they must be removed using a sawtooth grinder or an end grinder in the finishing process following the sawing process. There is a problem in that it causes an increase in man-hours.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a sawing device that does not generate burrs on the sawed portion of the material to be sawed.

In order to achieve the above object, the sawing device according to the present invention includes:
A main saw cutting machine that cuts the material to be sawed, and a sub-cutting machine that cuts sawing grooves in advance in the planned final sawing area of the planned island cutting where the material to be saw is cut by the main saw cutting machine. This is what happens when you move southward.

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

FIG. 3 is a schematic cross-sectional view showing 4 Inventions of One-Dog Death 1. A material 11 to be cut, such as a round piece or a steel piece, is conveyed by a table roller 12, and is provided at the wA cutting point.
It is fixed by a clamping device (not shown). On the front of the sawed material 11 at the sawing position,
A main saw cutter 13 is arranged. The main saw cutter 13 is
;Blade 14 for sawing li@'11 and Blade 1
4 and a feed cylinder device 15 that allows the cylinder 4 to move linearly in the L direction in the figure. A sub-part cutting machine 16 is arranged below the back side of the material to be sawn 11. il&1
The 1fIA cutting machine 16 includes a blade 18 that cuts a saw cutting groove 1T in advance in a scheduled final cutting area of a scheduled sawing section where the material to be sawn 11 is cut by the main saw cutting machine 13, and a blade 18 that swings the blade 18. It consists of a feed cylinder device 19 that is movable.

That is, by the operation of the feed cylinder device 19, the blade 18 of the side cutter 16 swings by an angle f0 from the original position shown by the solid line in FIG. The main saw cutter 13 set on the back side of the timber 11 cuts the planned IP: tNvr tile 1 indicated by diagonal lines in FIG.
7 total 17oJ Noh.

Next, the operation of the above embodiment will be explained.

The material to be sawed 11 is conveyed on the table rollers 12, and at the sawing position, it is set to a predetermined sawing length, and
It is held fixed by a clamping device. Next, the feed cylinder device 19 is activated, and the blade 18 of the 116II saw cutter 16 moves upward between the contacting table rollers 12, and the main saw cutter 18 is set on the back side of the material to be sawed 11. After the blade 18 of the saw cutter 16 returns to its original position, the feed cylinder device 15 is activated and the main saw cut is performed. The blade 14 of the machine 13 cuts the entire area of the intended sawing section of the material 11 to be sawed.

In the above-mentioned first embodiment, since the saw cut #117 is carved in advance in the scheduled final saw cutting area of the scheduled saw cutting section by the main saw cutter 13, the blade of the main saw cutter 13 14 reaches the final plow cutting area, a thin uncut portion iβ is not generated on the outer peripheral edge of the cut portion of the cut material 11 to be plowed. In addition, in the above-mentioned burning process using the Wang iMh113, even if the uncut part of the sawn material 11 that comes into instant contact with the saw cutting groove 17 is pressed and bent during one stroke, the pressed and bent ridge portion will not be cut by the saw. After adhering to the inner surface of the cutting groove 19, it is cut off by the blade 14 of the main saw cutter 13 that passes through the saw cutting groove 19, so that it will not stick or remain on the outer periphery of the sawn part of the material to be sawed 11. do not have.

In the embodiment described in -H, the gradual movement angle θ of the blade 18 due to the operation of the feed cylinder device 19 is
It is determined based on the cross-sectional shape and cross-sectional dimensions of. Further, the cutting range of the saw groove 17 carved by the blade 18, that is, the cutting angle α shown in FIG. 3 is between 30° and 120°.
It is set to increase in the range of 0 according to the wear of the blade 14 of the main saw cutter 13.

As described above, the saw cutting device according to the present invention includes a main saw cutting machine that cuts the material to be sawed, and a scheduled final sawing section of the intended sawing section where the material to be sawed is cut by the main saw cutting machine. [i11] saw cutting machine which cuts saw cutting grooves in the cutting area in advance,
This has the effect that almost no thin uncut portion remains at the final sawn portion of the sawed material, and therefore no cracks are generated at the outer periphery of the sawed portion of the sawed material.

[Brief explanation of drawings]

Fig. 1 is a front view showing an island cutting state by a sawing device according to a conventional example, Fig. 2 is an arrow diagram along the line ■-■ of Fig. @1, and Fig. 3 shows an embodiment of the present invention. Schematic side [111] 11. Cut material to be sawed, 13. Raw ore lvr machine, 16-j saw cutting machine, 17. Saw cutting groove. Agent Patent Attorney Osamu Shiokawa

Claims (1)

[Claims] ill A raw ore # machine that cuts the material to be sawed, and a mackerel that carves a cutting damage in advance in the scheduled final sawing area of the planned ayu cutting where the material to be saw is cut by the raw ore cutting machine. A saw cutting device made by combining a saw machine and a saw machine.