JP2011079182A - Rotary sawing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary sawing machine keeping a working environment clean by obtaining an effect of collecting chip dust to a high degree. <P>SOLUTION: The rotary sawing machine includes a base seat, a saw blade seat and a saw blade cover. At least one first convection hole is formed on one side corresponding to an opening of the saw blade seat, and at least one second convection hole generating an air flow matching the first convection hole is formed in a wall surface facing a saw blade of the saw blade cover. The air flow is thereby accelerated, and chip dust caused by cutting with the rotary saw is completely retained within the saw blade cover to effectively improve dust collecting efficiency. Covering sheets allowing only the saw blade to pass through and improving air current convection efficiency are extended from the saw blade seat and the saw blade cover respectively toward the saw blade. Since only the saw blade can pass through the opening, dust collecting efficiency is greatly improved. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a cutting machine, and more particularly, to a rotary saw machine having high clean efficiency and better safety and convenience.

General rotary saws cut wood and other similar timber, and rotary saws cannot prevent the generation of scrap dust and can be used to collect scrap dust. The saw machine is provided with a collecting structure for collecting dust, and FIG. 1 is a structure for collecting dust of a conventional rotary saw machine. The rotary saw machine 1 has a main body 10 and a base 12. After the dust collecting casing 14 is installed in the periphery, the base 12 is provided at the bottom of the main body 10, and after the object to be cut (for example, wood or other similar structural material) is installed in the base 12, the main body 10 The saw blade 16 located within and driven by the motor rotates counterclockwise so that the leading edge of the saw blade 16 rotates upward and the trailing edge of the saw blade 16 rotates downward. The rotary saw is displaced to the right, so the wood Other similar structural material, in the saw blade 16 to rotate upwards, to disconnect.

The dust dust generated in the cutting operation period is blown up as indicated by an arrow A due to the inertia of the saw blade 16 and the airflow generated by the rotation of the saw blade 16.

The dust collection structure described above cannot effectively collect dust when the specific gravity of the dust is extremely small, and there is a risk that the dust will be released again through the opening due to the flow of air. Therefore, as a whole, the dust collecting effect is deteriorated, the dust collecting effect is not effectively obtained, and the working environment becomes dirty.

    The present inventor proposes the present invention in which the above-mentioned drawbacks are solved by careful research, and the above-mentioned drawbacks can be effectively eliminated by utilizing science, and the design is rational.

The main object of the present invention is to provide a rotary saw, which comprises a base seat, a saw blade seat and a saw blade cover, on at least one side corresponding to the opening of the saw seat. A first convection hole is formed, and a second convection hole that generates an airflow in accordance with at least one first convection hole is formed on a wall surface facing the saw blade of the saw blade cover. Not only is the flow promoted, but at the same time, a small amount of remaining dust is discharged from the dust collecting channel due to the pressurizing effect by the above convection holes.

Another object of the present invention is to extend a covering sheet that allows only the saw blade to pass through the saw blade seat and the saw blade cover toward the saw blade, thereby improving the airflow convection efficiency. Provided is a rotary saw that greatly improves dust collection efficiency because only the saw blade can pass therethrough, and also improves the effect of collecting dust dust.

Still another object of the present invention is that not only the dust collection efficiency is greatly improved by the above structure, but also the effect of collecting dust dust is improved, and the cost is reduced by a simple structure, In addition, the present invention provides a rotary saw that provides advantages such as an improvement in the service life and the achievement of better safety and a working environment.

The invention of claim 1 comprises a base seat, a saw blade seat and a saw blade cover, wherein the saw blade seat is pivotally attached to one end of the base seat, and an outer peripheral area is provided on one side of the saw blade seat. The matching saw blade cover is locked, a dust collecting channel is formed at the position where the saw blade seat and the saw blade cover are pivotally mounted, and an opening is formed in the saw blade seat and the saw blade cover. The saw blade seat is a rotary saw machine in which a saw blade driven by a motor and locked through the opening is locked at a predetermined position, at least on one side corresponding to the opening of the saw blade seat. One first convection hole is formed, and a second convection hole for generating an air flow is formed on the wall surface of the saw blade cover facing the saw blade in accordance with at least one of the first convection holes. From the saw blade seat and the saw blade cover, respectively, toward the saw blade, Only saw blade passed,, elongation cover sheet to improve the air flow convection efficiency, in the opening, only the saw blade Toseru a rotary sawing machine, characterized in that.

The invention according to claim 2 is characterized in that the discharge of a plurality of air currents can be delayed from the wall surface of the saw blade seat facing the saw blade, and the first barrier sheet that completely prevents miscellaneous goods extends. The rotary saw machine according to 1.

The invention according to claim 3 is characterized in that the discharge of a plurality of air currents can be delayed from the wall surface facing the saw blade of the saw blade cover, and the second barrier sheet that completely prevents miscellaneous goods extends. The rotary saw machine according to 1.

Hereinafter, the features and technical contents of the present invention will be described in detail with reference to the drawings. However, the drawings and the like are for reference and explanation, and the present invention is not limited thereby.

2 and 3 are a three-dimensional conceptual diagram and an exploded conceptual diagram of a better embodiment of the present invention. As can be seen from the figure, the rotary saw 2 according to the present invention includes a base seat 20, a saw blade seat 22, and The saw blade cover 24 is composed of a saw blade seat 24. The saw blade seat 22 is pivotally attached to one end of the base seat 20, and the saw blade cover 24 having the same outer peripheral area is locked to one side of the saw blade seat 22. A dust collecting channel 26 is formed at a position where the saw blade seat 22 and the saw blade cover 24 are pivotally attached, an opening 3 is formed in the saw blade seat 22 and the saw blade cover 24, and In the saw blade seat 22, the saw blade 28 that is driven by the motor and passes through the opening 3 is locked at a predetermined position, and at least one first side 220 is provided on one side 220 corresponding to the opening 3 of the saw blade seat 22. Convection hole 222 is formed, and the saw blade 2 of the saw blade cover 24 is formed. A second convection hole 244 for generating an air flow is formed on the wall surface 242 facing the first convection hole 222 in accordance with at least one of the saw blade seat 22 and the saw blade cover 24. Only the saw blade 28 can be passed through the saw blade 28, and a covering sheet 29 for improving airflow convection efficiency can be extended, and only the saw blade 28 can be passed through the opening 3.

In the dust collection channel 26, a dust collection carver 4 having an outlet 40 and an inlet 42 is formed so as to cover the local portions on both sides of the saw blade 28, and the dust collection carver 4 and the base seat are formed at the inlet 42. A dust collecting sleeve 5 is connected to seal a gap between the two.

FIG. 4 is a conceptual diagram of the state in which the saw blade of the present invention is rotated and a state in which an airflow is generated by the above convection holes. As can be seen from FIG. 3, when the rotary saw 2 is driven as shown in FIG. The motor drives the saw blade 28, and the rotating saw blade 28 rubs against the air to generate an air current, at which time the waste generated by the wood or other similar structural material to be cut The dust is scattered by the air flow, but the dust collection channel 26 is installed in the rotary saw 2 and the flow straightening design is used. Therefore, the dust dust is effectively collected. .

In addition, at least one first convection hole 222 is formed on one side 220 of the opening 3 of the saw blade seat 22, and at least one wall surface 242 of the saw blade cover 24 facing the saw blade 28 is provided. Since the second convection hole 244 that generates an air flow is formed in accordance with the first convection hole 222, when the saw blade 28 is operated and air is sucked by the dust collection channel, a negative pressure state is generated inside. As a result, the dust is completely sucked by the dust collection channel, and the first convection hole 222 and the second convection hole 244 are formed, so that the negative pressure problem is solved and the air flow balance is improved. Realized.

The purpose of rectification can be achieved more efficiently by the convection hole formed in the saw blade seat 22 as well as the dust collection channel 26, and the dusty air current and the clean air current are separated. Not only is the flow of the air flow promoted, but at the same time, a small amount of remaining dust is discharged from the dust collecting channel due to the pressurizing effect by the above convection holes.

From the saw blade seat 22 and the saw blade cover 24 toward the saw blade 28, only the saw blade 28 can pass, and a covering sheet 29 that improves airflow convection efficiency extends, and only the saw blade 28 extends into the opening 3. Therefore, dust dust generated by cutting with a rotary saw is completely retained in the saw blade seat 22 and the saw blade cover 24, and the dust collection efficiency is effectively improved.

FIG. 5 is another preferred embodiment of the present invention, in which the convection hole and the blocking sheet are used to delay the discharge of the air flow and to improve the dust collection efficiency. It is a conceptual diagram of the internal operating state, and as can be seen from the figure, a plurality of first barrier sheets 226a extend from the inner wall surface 224a of the saw blade seat 22a facing the saw blade 28a, thereby delaying the discharge of airflow. Further, the foreign matter is completely blocked, and a plurality of second blocking sheets 248a extend from the inner wall surface 246a facing the saw blade 28a of the saw blade cover 24a, and the second blocking sheets 248a described above. This delays the discharge of the airflow and prevents the foreign matter completely, and when the air is located in the saw blade seat 22a and the saw blade cover 24a as described above, The air is blocked by the second barrier sheet 248a, In part, to stay in longer time, at the same time, dust debris in the air, hampered by each Sokaku sheet.

As such, the present invention is more progressive and more practical, and claims are filed according to law.

The above is merely a better embodiment of the present invention, and the present invention is not limited thereby, and equivalent changes made based on the scope of the claims and the description of the present invention. All modifications are within the scope of the claims of the present invention.

Dust collection structure of conventional rotary saw 3D conceptual diagram of a better embodiment of the present invention Exploded conceptual diagram of a better embodiment of the present invention Schematic diagram of the airflow state when the saw blade of the present invention rotates and the above convection holes FIG. 5 is a conceptual diagram of an internal operation state in which dust collection efficiency is improved by delaying the discharge of airflow using the above convection holes and the above-described blocking sheet of another better embodiment of the present invention.

DESCRIPTION OF SYMBOLS 1 Rotary saw 10 Main body 12 Base 14 Dust collection casing 16 Saw blade 2 Rotary saw 20 Base 22 and 22a Saw blade seat 220 One side 222 1st convection hole 224a, 246a Inner wall surface 226a 1st barrier sheet 24, 24a Saw blade cover 242 Wall surface 244 Second convection hole 248a Second blocking sheet 26 Dust collection channel 28, 28a Saw blade 29 Cover sheet 3 Opening 4 Dust collection carver 40 Outlet 42 Entrance 5 Dust collection sleeve

Claims (3)

It is composed of a base, a saw blade seat and a saw blade cover, the saw blade seat is pivotally attached to one end of the base seat, and a saw blade cover having a matching outer peripheral area is locked to one side of the saw blade seat A dust collecting channel is formed at a position where the saw blade seat and the saw blade cover are pivotally mounted; an opening is formed in the saw blade seat and the saw blade cover; and the saw blade seat A rotary saw machine driven by a motor and locked by a saw blade passing through the opening at a predetermined position,
At least one first convection hole is formed on one side corresponding to the opening of the saw blade seat, and a wall surface facing the saw blade of the saw blade cover is aligned with the at least one first convection hole. A second convection hole for generating an air flow is formed, and the saw blade seat and the saw blade cover can be passed through the saw blade toward the saw blade, respectively, so that the air convection efficiency is improved. The sheet stretches and only the saw blade can pass through the opening.
This is a rotary saw. 2. The rotary saw according to claim 1, wherein the discharge of a plurality of air currents can be delayed from the wall surface of the saw blade seat facing the saw blade, and the first barrier sheet that completely prevents miscellaneous goods extends. . 2. The rotary saw machine according to claim 1, wherein a second barrier sheet for preventing miscellaneous goods extends from the wall surface of the saw blade cover facing the saw blade, the discharge of a plurality of airflows being delayed. .

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