KR20110076213A - Cutting device for wood dust to dust collecting chamber - Google Patents

Abstract

PURPOSE: A chamber collecting fine dust of wood cutting device is provided to prevent fine dust and sawdust, which is cut the rotary saw rotating at high speed, from being discharged outside the worktable and from flying towards worker. CONSTITUTION: The chamber collecting fine dust of wood cutting device includes: a cap member(2); a housing(3); and an air guide. The cap member forms the rotary saw exposure through-hole to cut wood by exposing part of the rotary saw. The installation groove(32a) is installed to make the saw blade, installed in the internal space, rotate in the internal space. The housing has more than two outlets in the lower part. The air guide is installed in the inner side of the housing and guides the flow of the air current.

Description

Cutting device for wood dust to dust collecting chamber

The present invention relates to a chamber for collecting the fine dust of the wood cutting device, in particular to prevent the sawdust generated during the rotation of the rotary saw blade flying according to the rotational force and gas flow of the rotary saw blade to protect the worker and clean the work around It relates to a chamber for collecting the fine dust of the wood cutting device to maintain.

Plywood, MDF panel (Medium Density Fiber Panel), LPM panel (Low Pressure Melamine Panel), PB panel (Particle Board Panel) and various wood are widely used as building materials and furniture materials. These boards have high strength, as well as good processability, and have been widely used in recent years because they are suitable for bonding pattern sheets.

The panel, ie, wood, is cut by a circular rotary saw, ie, a chainsaw, that rotates electricity as a power source in a woodworking mill or sawmill. As shown in FIG. 1, the conventional chainsaw device includes a motor 100 for providing power, a driving belt 110 that is a means for transmitting rotational power by the motor 100, and The circular rotary saw 120 which rotates continuously by the drive belt 110 is used as a main part.

In addition, a work bench 130 for performing a work with the chainsaw is attached, an opening 130a through which the rotary saw 120 is exposed is formed at the center of the work bench 130, and the work bench 130 is provided. The lower side of the support leg 140 is provided to support the worktable 130 soaring from the ground to a certain height to be suitable for the operator to work.

When cutting or cutting wood with a conventional chainsaw device configured as described above, the wood to be cut on the worktable 130 is placed and the wood is turned toward the rotary saw 120 rotated by the driving force of the motor 100. You will do this by accessing.

By the way, in the conventional chainsaw device, sawdust and dust cut by the rotary saw 120 that rotates at a high speed during the cutting operation of wood is scattered to the worker or its surroundings, which is harmful to the health of the worker.

Thus, even when the dust and sawdust, etc. occur, the accompanying drawing showing the Republic of Korea Utility Model Registration No. 332019, shown in FIG. 2 to discharge the compressed air using the nozzle 200 as shown in Figure 2 to blow out the sawdust Sawdust removal device of the sheet cutting machine has been proposed, and also dust collecting sawdust and other fine dust generated when cutting plywood by installing a dust collector 300 separately below the rotary saw 120 as shown in FIG. It is a structure installed to

However, when the nozzle 200 for discharging the compressed air is installed and used on the top of the rotary saw 120 as shown in FIG. 2, the nozzle 200 obstructs the worker's field of vision, causing injury or causing danger to the surroundings. It became a problem to let.

Meanwhile, in the case of the dust collector installed at the lower part of the rotary saw 120 as shown in FIG. 3, when the air is sucked in the discharge part 310 of the dust collector 300, the internal air has a time. There is a problem that the suction efficiency is lowered as the elapsed time is passed.

Due to a problem that sawdust and fine dust generated by a chainsaw device equipped with such a dust collector is blown toward the worker, a fan is usually installed at the rear or side of the worker to protect the worker from sawdust and fine dust flying toward the worker. In some cases, a fan is installed to protect the worker from sawdust and dust flying toward the worker as described above. In order to provide a cause, and a cold winter season, a fan must be used, so there is a problem in that the wood cutting work must be performed in a cold environment.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is first, to prevent the sawdust and fine dust cut by the rotary saw rotating at high speed to be discharged to the outside of the workbench to maintain a clean state of the workplace To create a pleasant working environment,

Second, the sawdust and fine dust discharged to some of the upper part of the table is sucked back into the chamber to collect dust,

Third, to provide a chamber for collecting the fine dust of the plywood cutting device that has the advantage of preventing the occurrence of accident by preventing the sawdust and fine dust cut by the high-speed rotating rotary saw toward the operator.

An object of the present invention is a chamber for collecting fine dust in the wood cutting device, the cover member is formed in the top of the rotary saw exposed through the exposed part of the rotary saw to cut the wood; A housing having an upper portion open to cover the upper portion by using a lid member, and having a side surface with an installation groove for rotatably installing saw blades installed in the inner space, and having a lower portion having two or more outlets; An air guide installed inside the housing to guide the flow of airflow; It is achieved by a chamber for collecting fine dust of the wood cutting device, characterized in that made.

On the other hand, the lid member is achieved by a chamber for collecting fine dust of the wood cutting device, characterized in that a plurality of holes for sucking the outside air is formed.

On the other hand, the lid member is achieved by a chamber for collecting the fine dust of the wood cutting device, characterized in that made in the form of a mesh to suck the outside air.

The air guide has a notch groove so that one side enters the inner radius of the rotary saw and is installed in close proximity while avoiding collision with the rotary saw, and the forward rotation guide plate and the forward rotation guide plate formed to have a curvature have the same structure, but opposite installation directions. It is achieved by a chamber for collecting fine dust of the wood cutting device, characterized in that consisting of a third guide plate installed in the direction.

The forward rotation guide plate is achieved by a chamber for collecting fine dust of the wood cutting device, characterized in that the first guide plate and the second guide plate.

The bottom surface of the housing is achieved by a chamber for collecting the fine dust of the wood cutting device, characterized in that the edge is formed while forming an inclined surface portion toward the center.

On the other hand, the edge portion where the inclined surface portion is achieved by a chamber for collecting fine dust of the wood cutting device, characterized in that consisting of an arc.

The present invention prevents the sawdust and fine dust cut by the high-speed rotating saw to be discharged to the outside of the workbench to maintain a clean state of the workplace to create a pleasant working environment, to the table (worktop) Some of the sawdust and fine dust discharged and discharged are sucked back into the chamber to be collected and collected, and the sawdust and fine dust cut by the high-speed rotating saw are prevented from flying toward the operator to prevent accidents. have.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 4 is a perspective view showing the overall appearance of the chamber for collecting fine dust of the wood cutting apparatus to which the technique of the present invention is applied, Figure 5 is a whole of the chamber for collecting fine dust of the wood cutting apparatus to which the technique of the present invention is applied Figure 6 is an exploded perspective view showing the appearance and Figure 6 is a cross-sectional view showing the overall appearance of the chamber for collecting the fine dust of the wood cutting apparatus applied technology of the present invention according to the present invention is a part of the rotary saw 10, 10a The lid member 2 and the upper part of which are formed to expose the cutting saw exposed through holes (11) (11a) and the upper part are open to cover the open top by using the lid member (2), and the side to the inside Saw blades 10 and 10a installed in the space 31 are provided with installation grooves 32a rotatably installed in the inner space, and a lower housing having two or more discharge holes 35 and 35a formed therein ( 3) and the housing ( 3) is installed inside the air guide (4) for guiding the flow of air flow.

On the other hand, the lid member 2 is preferably used that is formed with a plurality of holes for sucking the outside air, more preferably so that the lid member 2 can suck the outside air More preferably, it is made of a mesh form.

In addition, as shown in Figure 11, the lid member 2 is provided with a wedge member 20 for opening the cut wood. The wedge member 20 is sandwiched between the wood cut by the saw blades 10, 10a to open the wood so that saw blade 10, 10a is invisible when the saw blade is rotated, but the surface is cut and shake occurs It is installed to prevent rough cutting or damage of saw blade.

On the other hand, the structure of the housing 3 may be a structure having a bottom surface 32 is inclined toward the center as shown in the accompanying drawings, as shown in Figure 6, as shown in Figure 8a and 8b of the accompanying drawings. Orthogonal corners where the inclined surfaces meet may be made of circular arcs. At this time, it is preferable to use two outlets (35, 35a) provided in the lower symmetrical installation.

On the other hand, the air guide 4 is provided with cutout grooves 41a and 42a so that one side enters the inside of the rotary saw and is installed in close proximity while avoiding collision with the rotary saws 10 and 10a, and is formed to have a curvature. The structure of the first guide plate 41 and the second guide plate 42 is the same structure, but the installation direction is installed in the opposite direction, but consists of a third guide plate 43 provided with a cutout groove 43a.

The use state of the present invention having the above structure will be described.

In order to examine the operation effect of the dust collector of the conventional chainsaw device having a structure as shown in FIG.

Saw Blade Size: Small Saw 152mm

            Big saw 203mm

Saw Blade Rotation Speed: Small Saw 1700rpm

                 Large top 1,735rpm

Saw blade thickness: 2mm

Volumetric flow rate of discharge part: 19m ^ 3 / min (1EA)

Atmospheric pressure of the table top surface: 0 Pa

Mass flow rate of discharge part: -0.3819kg / s

Induction plate: none

Number of outlets: 1

After the operation of the conventional chainsaw device as shown in FIG. 3 under the experimental conditions as described above, sawdust is piled up to one side inside the housing 3, and when suctioned from the discharge part 310, sawdust cut from a predetermined amount of wood And fine dust is discharged but is continuously stacked on one side by the rotational force of the rotating saw blade has a problem that the discharge efficiency is lowered.

On the other hand, the conventional chainsaw device as shown in Figure 3, as shown in Figure 10, it can be seen that the dust collector in the conventional chainsaw device is discharged performance is reduced as the flow line of the gas is rotated as a whole.

However, the performance of the chamber for collecting the fine dust of the wood cutting device to which the technique of the present invention is applied can be confirmed through the following experiment.

Saw Blade Size: Small Saw 152mm

            Big saw 203mm

Saw Blade Rotation Speed: Small Saw 1700rpm

                 Large top 1,735rpm

Saw blade thickness: 2mm

Volumetric flow rate of discharge part: 19m ^ 3 / min (2EA)

Atmospheric pressure of the table top surface: 0 Pa

Mass flow rate of discharge part: -0.3819kg / s

Induction plate: 3EA

Number of outlets: 2

Looking at the operating state of the chamber for collecting the fine dust of the wood cutting device of the present invention under the above experimental conditions as shown in Figure 7a attached to the gas is guided downward by the rotary saw 10, 10a flow distribution Remaining airflow around the rotary saw 10 and 10a rotated when it is shown to hit the air guide (4) while the airflow is not rotated without stabilization of the airflow and airflow sawdust in the downward direction freely It can be seen that the fine dust, that is, the airflow is guided.

The reason why the airflow does not collide with each other in the housing 3 is that the cutting grooves 41a, 42a and 43a enter the radius of the rotary saws 10 and 10a and collide with the rotary saws 10 and 10a. The airflow formed by the rotational direction of the rotary saw 10 while being installed as close as possible to the rotary saw 10 while preventing the air is directed toward the inner wall of the housing 3 by the first guide plate 41 and the second guide plate 42. As it is guided, it is widely spread out. In addition, the flow of airflow formed by the third guide plate 43 is blocked. Thus, sawdust and fine dust in the housing 3 are prevented from being discharged out through the top of the housing 3.

In addition, the reverse rotation is generated by the rotary saw 10a while the airflow formed in the opposite direction by the other rotary saw 10a is weakened by the force of the airflow by the first guide plate 41 and the second guide plate 42. It prevents airflow collision in two directions and maintains a more stable state. Also, the first guide plate 41 and the second guide plate 42 allow sawdust and fine dust inside the housing 3 to be out of the housing. The discharge is prevented.

Therefore, the inside of the housing 3 is to maintain a more stable state, the reason why the installation number of the guide plate is installed in the direction of the large diameter rotary saw is because the wood is cut by the large diameter rotary saw.

Attached drawing in which the bottom surface of the housing 3 forms an inclined surface toward the center and a right angled edge is formed. The structure of the housing 3 as shown in FIG. 6 has a space between the discharge port 35 and the discharge port 35a. The space formed between the discharge hole 35 and the discharge hole 35a, that is, the discharge of the sawdust and fine dust remaining in the corner portion is delayed, which is delayed, as shown in FIGS. 8A to 8B. It can form and solve this arc.

On the other hand, the chamber 1 for collecting the fine dust of the wood cutting device having the structure of the present invention, as shown in Figure 10 the chamber 1 of the present invention as a whole, the flow line of the gas, that is, the change of air flow It can be seen that the inside of the housing 3 is stable, so that the discharge performance is improved.

Meanwhile, when the sawdust and the fine dust are sucked using the discharge holes 35 and 35a, the lid member 2 which simply forms the rotary saw exposed through holes 11 and 11a closes (blocks) the upper part of the housing 3. It is preferable that the structure of the lid member 2 rather than the chamber 1 having the structure of FIG. 5 is a structure in which numerous through holes are formed as shown in FIG. 5 or preferably has a mesh network structure.

The reason is that the suction amount of air decreases by inhaling the air inside the housing 3 when suctioning sawdust and fine dust using the discharge holes 35 and 35a, but the suction efficiency is lowered. The use of the lid member 2 of the suction structure increases the suction efficiency of the outlets 35 and 35a according to the continuous air inflow, so that it is possible to efficiently collect sawdust and fine dust.

In addition, when the lid member 2 is formed in the form of a porous network or a mesh network, since the particle size is large and sawdust which is not sandwiched between the blade and the blade of the circuit saw falls directly into the housing 3 by its own weight, It is possible to prevent flying around the workplace, and to prevent the sawdust from being blown out of the worker's eyesight or getting into the eyes, thereby causing a safety accident.

The present invention has been described above with reference to a preferred embodiment, which is merely an example and is not intended to limit the present invention, and those skilled in the art to which the present invention pertains should not depart from the essential characteristics of the present invention. It will be appreciated that various modifications and applications are not possible.

1 is a perspective view showing the structure of a conventional chainsaw device.

Figure 2 is a cross-sectional view showing the structure of a conventional chainsaw device is installed dust collector.

3 is a fine dust distribution diagram showing the fine dust distribution showing the structure of the conventional dust collector and the fine dust flow distribution around the saw blade inside.

Figure 4 is a perspective view showing the overall appearance of the chamber for collecting the fine dust of the wood cutting device applied technology of the present invention.

Figure 5 is an exploded perspective view showing the overall appearance of the chamber for collecting the fine dust of the wood cutting apparatus applied technology of the present invention.

Figure 6 is a cross-sectional view showing the overall appearance of the chamber for collecting the fine dust of the wood cutting device applied technology of the present invention.

Figure 7a is a fine dust distribution showing the fine dust flow distribution around the saw blade inside the chamber according to the rotary saw rotation when using the present invention.

Figure 7b is an airflow diagram showing the air flow around the saw blade inside the chamber according to the rotary saw rotation in the use of the present invention.

8A is a partially cutaway perspective view of another embodiment of the present invention.

8B is a sectional view showing the structure of FIG. 8A.

FIG. 9A is a fine dust distribution diagram showing a fine dust flow distribution around a saw blade in a chamber having the structure of FIG. 8; FIG.

9b is an airflow diagram showing air flow around the saw blade inside the chamber with the structure of FIG.

10 is a graph showing fine dust discharge performance of a chamber having the structures of FIGS. 6 and 8.

11 is a plan view showing another structure of the lid member which is the main part of the present invention.

 * Description of the symbols for the main parts of the drawings *

2: lid member 3: housing

4: Air guide 10,10a: Saw blade

11,11a: exposed hole 20: wedge member

31: space 32: bottom

32a: Installation groove 35,35a: Outlet

41: first induction plate 42: second induction plate

43: third guide plate 41a, 42a, 43a: notch groove

Claims (9)

In the chamber for collecting the fine dust of the wood cutting device, A lid member having a rotary saw exposed through-hole so that a portion of the rotary saw is exposed at the top to cut the wood; The upper part is opened to cover the upper part by using a lid member, and the side is provided with an installation groove in which saw blades installed in the inner space are rotatably installed in the inner space, and at least two outlets are provided in the lower part. and; An air guide installed inside the housing to guide the flow of airflow; Chamber for collecting the fine dust of the wood cutting device comprising a. The chamber of claim 1, wherein the lid member has a plurality of holes formed therein for sucking outside air. The chamber of claim 1, wherein the lid member is formed in a mesh shape to suck outside air. The structure of claim 1, wherein the air guide has a notch groove and is formed to have a curvature so that one side enters the inside radius of the rotary saw and is installed in close proximity while avoiding collision with the rotary saw. A chamber for collecting fine dust of a wood cutting device, comprising a third guide plate which is installed in the same direction in the opposite direction. 5. The chamber as claimed in claim 4, wherein the forward rotation guide plate comprises a first guide plate and a second guide plate. The chamber of claim 1, wherein an edge is formed while the bottom surface of the housing forms an inclined surface portion toward the center portion. The chamber of claim 1, wherein the edge portion of the inclined surface portion is formed of an arc. The chamber of claim 1, wherein the two lower outlets are disposed to face each other while forming an inclination angle. The chamber of claim 1, wherein the lid member further comprises a wedge member for spreading the cut wood.

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