KR101902143B1 - Wood dust removal device for sawing machine - Google Patents

Wood dust removal device for sawing machine Download PDF

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Publication number
KR101902143B1
KR101902143B1 KR1020180005421A KR20180005421A KR101902143B1 KR 101902143 B1 KR101902143 B1 KR 101902143B1 KR 1020180005421 A KR1020180005421 A KR 1020180005421A KR 20180005421 A KR20180005421 A KR 20180005421A KR 101902143 B1 KR101902143 B1 KR 101902143B1
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KR
South Korea
Prior art keywords
dust
cutting
suction
wood
amount
Prior art date
Application number
KR1020180005421A
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Korean (ko)
Inventor
유태근
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유태근
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Priority to KR1020180005421A priority Critical patent/KR101902143B1/en
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Publication of KR101902143B1 publication Critical patent/KR101902143B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29Details; Component parts; Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27GACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G3/00Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4155Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme

Abstract

The present invention relates to a dust collecting apparatus for a wood cutter. The present invention provides the dust collecting apparatus for a wood cutter comprising: a dust suction unit disposed adjacent to a cutting unit performing cutting operation of wood in a computerized numerical control wood cutter (hereinafter referred to as a CNC cutter) and sucking dust generated from the cutting unit; a dust amount predicting unit which receives a wood cutting schedule from an operation input unit of the CNC cutter and predicts a dust amount according to a cutting progress; and a dust collection controller for controlling an amount of air sucked in the dust suction unit based on the predicted dust amount.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wood-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus for a wood cutting machine, and more particularly, to a dust collecting apparatus for controlling an intake air amount according to an amount of dust generated according to a wood processing type in a computer numerically controlled wood cutting machine.

Sawdust and dust are generated at the time of cutting the wood, and the sawdust and dust generated interfere with the field of view of the worker and also cause troubles such as respiration to the worker.

Accordingly, in order to prevent safety hazards due to dust, a dust collector sucking dust in a wood processing machine is being developed.

As a related art, Korean Patent Registration No. 20-0296354 entitled "Sawdust discharge device of plywood cutting apparatus" is a device capable of adjusting the height of dust suction port according to the height of wood using a sensor attached to a wood processing machine when processing wood .

Korean Patent Registration No. 20-0296354 discloses a method in which a sensor attached to a wood processing machine during wood processing measures the height of a wood to closely accommodate a cutting movement path of a rotary saw used for processing, And dust generated during processing is prevented from being splashed or blown to the outside.

However, in the prior art, there is an inconvenience that the dust collector of the workplace is directly turned on and the operation of turning off the work is repeated when the work is finished. Therefore, there is a need for a dust collecting apparatus that operates in conjunction with the operation of the cutter.

Patent Document 1: Korean Utility Model Registration No. 20-0296354 Patent Document 2: Korean Patent No. 10-1582156

An object of the present invention is to provide a dust collecting apparatus for controlling the intake air amount in accordance with the amount of dust generated according to the type of wood processing in a computer numerically controlled wood cutter.

According to one aspect of the present invention, there is provided a dust collecting apparatus for a wood cutter, comprising: a computerized numerical control woodcutter (hereinafter referred to as a CNC cutter) And a dust suction unit for sucking dust generated from the cut portion; A dust amount predicting unit that receives the timber cutting schedule from the operation input unit of the CNC cutter and predicts the dust amount according to cutting progress; And a dust control unit for adjusting the amount of air sucked in the dust suction unit based on the predicted dust amount.

At this time, the dust suction unit includes a suction pipe disposed adjacent to the cutting unit and sucking dust generated along the cut of the wood; And an air injection pipe disposed adjacent to the cutting portion and disposed in a direction facing the suction pipe to inject high pressure air toward the cutting portion and the suction pipe.

At this time, the dust collection controller controls the dust collection amount of the air sucked by the dust suction unit so that the dust collection amount of air performed in the dust suction unit corresponds to the instantaneous dust amount, Can be controlled.

The suction pipe may include a first suction pipe disposed adjacent to the cutting portion and disposed in a traveling direction of air injected from the air injection pipe; And a second suction pipe disposed on the outer side of the first suction pipe in such a manner as to surround the cutting portion and a portion of the cutting target wood contacted for cutting.

Meanwhile, the dust collection control unit may control the suction pressure of the first suction pipe and the suction pressure of the second suction pipe so that the dust collection amount of air performed in the dust suction unit corresponds to the instantaneous dust amount, based on the instantaneous dust amount, The suction pressure can be controlled differentially.

According to the dust collecting apparatus of a wood cutter according to the present invention,

First, the dust control unit controls the suction pressure of the suction pipe and the injection pressure of the spray pipe to correspond to the instantaneous dust amount, thereby making it possible to optimize the use of the dust collector.

Second, since the suction pipe includes the first suction pipe for directly sucking the sawdust discharged from the cutting portion and the second suction pipe for sucking the floating dust, the dust suction effect can be enhanced.

Third, since the suction pressure of the first suction pipe and the suction pressure of the second suction pipe are controlled differently based on the instantaneous dust amount, efficient use of the dust collector is possible.

1 is a block diagram of a dust collecting apparatus for a wood cutting machine according to an embodiment of the present invention.
2 is a detailed block diagram of the dust suction unit shown in Fig.
3 is a schematic view of a dust suction unit according to an embodiment of the present invention.
4 is a schematic view for explaining how the suction pressure of the first suction pipe and the suction pressure of the second suction pipe are differentially controlled by the dust collection control unit.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

FIG. 2 is a detailed block diagram of the dust suction unit shown in FIG. 1, and FIG. 3 is a cross-sectional view of a dust collecting apparatus according to an embodiment of the present invention. Fig. 4 is a schematic view for explaining how the suction pressure of the first suction pipe and the suction pressure of the second suction pipe are differentially controlled by the dust collection control unit. Fig.

1 to 4, a dust collecting apparatus 1000 for a wood cutter according to the present invention includes a dust suction unit 100, a dust amount predicting unit 200, a dust collecting controller 300, and a dust collector 500 .

The dust suction unit 100 is disposed adjacent to a cutting unit 410 that performs cutting of the wood W in a CNC cutter 400 and a cutting unit 410 such as a computerized numerical control wood cutting unit, As shown in Fig.

The dust amount predicting unit 200 receives the timber cutting schedule from the operation input unit 420 of the CNC cutter 400 and predicts the amount of dust according to the cutting progress.

The dust collection controller 300 controls the amount of air sucked in the dust suction unit 100 based on the predicted dust amount.

In the present invention, the CNC cutter 400 is a computer numerical control cutter, which cuts the wood W into a desired shape according to the order of cutting by inputting the shape to be cut into the work input unit 420.

The dust suction unit 100 is disposed adjacent to the cutting unit 410 and is disposed adjacent to the suction pipes 110 and 120 and the cutting unit 410 for suctioning dust generated according to the cutting of the wood W, And an air injection pipe 130 disposed in a direction facing the first and second suction pipes 110 and 120 to inject high pressure air toward the cutting unit 410 and the suction pipes 110 and 120.

Referring to FIG. 3, the cutting unit 410 cuts the wood W according to the timber cutting schedule input to the operation input unit 420. At this time, dust is generated according to the cutting of the wood (W), and the generated dust can be classified into sawdust and floating dust depending on the size. The sawdust and dust are generated when the saw blade constituting the cutting portion 410 crushes the wood W. At this time, sawdust is sandwiched between the saw blade and the saw blade, and the sawdust scattered by the saw blade is scattered widely according to the rotation of the saw blade, so that dust is generated in all directions of the cutting portion 410.

The dust suction unit 100 according to the present invention provides a structure in which the sawdust is sucked as soon as the sawdust is generated by cutting so that the sawdust sandwiched between the saw blades is not scattered widely.

Sawdust is dust that is large in size among the dust generated by the wood (W) cutting, and is sucked up by high pressure suction pressure due to the weight of the particles. When cutting the wood, the dust is generated in all directions of the cutting portion 410. If the suction pipe for suctioning the dust is formed in a single configuration so as to cover all the cutting portions 410, the high pressure suction pressure required for suction of the sawdust The structure of the dust collector 500 becomes large.

According to an embodiment of the present invention for solving the problem, the dust suction unit 100 is disposed adjacent to the cutting unit 410 and includes a first suction pipe (not shown) disposed in the traveling direction of air injected from the air spray pipe 130 And a second suction pipe 120 disposed on the outer side of the first suction pipe 110 in such a manner as to surround a cutting portion 410 and a portion of the cutting target wood W contacting the cutter.

3, the cutting portion 410 is illustrated as a circular saw blade, but this is for convenience of explanation, and the cutting portion 410 may be implemented in accordance with the type of the CNC cutter 400.

The air injection pipe 130 injects high-pressure air to the cutting portion 410 side to discharge sawdust sandwiched by a tool (specifically, between the saw blades) constituting the cutting portion 410.

The first suction pipe 110 is arranged in the traveling direction of the air injected from the air injection pipe 130 to suck the discharged dust (i.e., sawdust).

Since the first suction pipe 110 is disposed adjacent to the cutting portion 410, the discharged sawdust can be sucked before it is scattered in the other direction according to the rotation of the saw blade. In addition, since the saw blades are installed in the direction in which the saw blades are blown by the air spraying tube 130, the suction effect of the saw dust can be enhanced even at a proper suction pressure P1.

On the other hand, the second suction pipe 120 is disposed to suck the remaining suspended dust that has not been sucked by the first suction pipe 110.

The second suction pipe 120 is disposed outside the first suction pipe 110 in such a manner as to surround the first suction pipe 110 and the cutting portion 410 and a portion of the wood W to be cut for cutting. 3, the second suction pipe 120 is shown in the form of a collecting hood on the upper side of the portion where the first suction pipe 110 and the cutting portion 410 and the wood W to be cut are in contact with each other for cutting, The second suction pipe 120 may be formed in the form of a chamber surrounding the cutting portion 410 and the second suction pipe 120 may be formed in the shape of a chamber surrounding the cutting portion 410, . ≪ / RTI >

The second suction pipe 120 is for sucking fine dust that is not sucked into the first suction pipe 110 and the fine dust is floating in the air so that the suction pressure P2 of the second suction pipe 120 is lower than the suction pressure P2 of the first suction pipe 110 Even if the suction pressure P1 is lower than the sucking pressure P1 of the suction force P1.

To this end, the dust collection control unit 300 can control the suction pressure P2 and the suction pressure P1 in a differential manner, if necessary. At this time, differential control of the suction pressure can be performed by the flow control valve 310 shown in Fig.

Since the suction pressure is inversely proportional to the cross sectional area of the suction pipe, the flow amount sucked by the dust collector 500 is appropriately adjusted by the flow rate control valve 310 so that the suction pressure P2 of the second suction pipe 120 and the suction pressure P2 of the first suction pipe 120 It is possible to appropriately distribute the plunger P1.

On the other hand, the amount of dust generated according to the wood (W) cut varies instantaneously according to the timber cutting schedule. For example, in the case of a straight cut, if the same dust is generated while straight cutting is performed and then cutting is performed such as hole breaking, the amount of dust generated may instantaneously increase according to the size of the hole to be cut.

The dust amount predicting unit 200 receives the timber cutting schedule from the operation input unit 420, predicts the dust amount according to the cutting progress,

The dust collection controller 300 calculates the suction pressures P1 and P2 of the suction pipes 110 and 120 and the suction pressures P1 and P2 of the suction pipes 110 and 120 so that the dust collection amount of the air performed in the dust suction part 100 corresponds to the instantaneous dust amount based on the instantaneous dust amount, And controls the injection pressure of the air injection pipe.

That is, when the instantaneous dust amount increases, the suction pressure P1 is increased and the injection pressure of the air injection pipe 130 is increased so that the suction pipe 110 can suck more sawdust.

For the sake of convenience of explanation, when the 'minute dust amount calculated according to the progress of cutting' is referred to as 'dust amount generation schedule', the dust collection controller 300 adjusts the flow amount sucked in the dust collector 500 according to the dust amount generation schedule, ) To control the suction pressure P2 of the second suction pipe 120 and the suction pressure P1 of the first suction pipe 120 in a differential manner.

The dust collection control unit 300 controls the suction flow rate of the dust collector 500 and the suction pressure of the second suction pipe 120 so that the dust collection amount of air performed in the dust suction unit 100 corresponds to the instantaneous dust amount (dust amount generation schedule) (P1) of the first suction pipe (P2) and the first suction pipe (120), and the injection pressure of the air injection pipe.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

1000: dust recovery device
100: dust suction part
200:
300:
400: CNC cutter
500: Dust collector

Claims (5)

  1. Computerized Numerical Control A dust suction unit disposed adjacent to a cutting unit for cutting wood in a wood cutter (hereinafter, referred to as a CNC cutter) and sucking dust generated from the cutting unit;
    A dust amount predicting unit that receives the timber cutting schedule from the operation input unit of the CNC cutter and predicts the dust amount according to cutting progress; And
    And a dust control unit for adjusting the amount of air sucked in the dust suction unit based on the predicted dust amount,
    The dust suction unit
    A suction pipe disposed adjacent to the cutting portion and sucking dust generated along the cut of the wood; And
    And an air injection pipe disposed adjacent to the cutting portion and disposed in a direction facing the suction pipe to inject high pressure air toward the cutting portion and the suction pipe,
    Wherein the dust-
    Controls the suction pressure of the suction pipe and the injection pressure of the air injection pipe so that the dust collection amount of air performed in the dust suction unit corresponds to the instantaneous dust amount based on the instantaneous dust amount calculated in accordance with the cutting progress,
    The suction pipe
    A first suction pipe disposed adjacent to the cutting portion and disposed in a traveling direction of air injected from the air injection pipe; And
    And a second suction pipe disposed on the outer side of the first suction pipe in such a manner as to surround the cutting part and a part of the wood to be cut which is in contact with the cutter for cutting.
  2. delete
  3. delete
  4. delete
  5. The method according to claim 1,
    Wherein the dust-
    The suction pressure of the first suction pipe and the suction pressure of the second suction pipe are controlled differently based on the instantaneous dust amount calculated in accordance with the cutting progress so that the dust collection amount of air performed in the dust suction unit corresponds to the instantaneous dust amount And a dust collecting device for dusting the wood.
KR1020180005421A 2018-01-16 2018-01-16 Wood dust removal device for sawing machine KR101902143B1 (en)

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KR1020180005421A KR101902143B1 (en) 2018-01-16 2018-01-16 Wood dust removal device for sawing machine

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Application Number Priority Date Filing Date Title
KR1020180005421A KR101902143B1 (en) 2018-01-16 2018-01-16 Wood dust removal device for sawing machine

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KR101902143B1 true KR101902143B1 (en) 2018-09-27

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KR1020180005421A KR101902143B1 (en) 2018-01-16 2018-01-16 Wood dust removal device for sawing machine

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007063846A (en) * 2005-08-31 2007-03-15 Kajima Corp Operation control device for dust collector
JP2011068073A (en) 2009-09-28 2011-04-07 Hitachi Koki Co Ltd Portable cutter
KR101040660B1 (en) 2011-01-14 2011-06-10 (주)스페이스원 Cnc plasma model cutter with improved dust-collection efficiency

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007063846A (en) * 2005-08-31 2007-03-15 Kajima Corp Operation control device for dust collector
JP2011068073A (en) 2009-09-28 2011-04-07 Hitachi Koki Co Ltd Portable cutter
KR101040660B1 (en) 2011-01-14 2011-06-10 (주)스페이스원 Cnc plasma model cutter with improved dust-collection efficiency

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