KR200358970Y1 - The construction of duct for fume collector which has synchronous movements with cutting torchs - Google Patents

Abstract

The present invention relates to a duct structure of a dust collector that moves in synchronization with the movement of a cutting torch, and more particularly, is installed in an oxygen gas cutter, a plasma arc cutter, and a laser cutter, which is used to cut a cutting member into a shape required by a program. The present invention relates to a structure of a duct and a hood of a traveling type automatic cutting machine dust collecting facility that efficiently collects dust and harmful gas generated during cutting at a cutting workshop.

Flue fume hood (3) for the lower dust collecting device, which moves in synchronization with a torch for collecting and filtering dust, dust, and harmful gases generated during automatic cutting operations such as plasma arc jet cutting, oxygen gas cutting, and laser cutting. By forming an air suction hole 15 in the connection, connecting the bending pipe 17, by connecting a flexible and durable foldable duct 13 or hose, and fixing it to the duct drag chain 14, When the exhaust hood 3 is synchronized with the cutting torch 6, the folding duct 13 or the hose does not be folded or deformed and is flexibly bent while moving, so that the negative pressure of the dust collector 11 and the dust collecting fan 10 is reduced. It is a duct structure of the dust collector that moves in synchronism with the movement of the cutting torch.

Description

The construction of duct for fume collector which has synchronous movements with cutting torchs}

The present invention relates to a duct structure of a dust collector that moves in synchronization with the movement of a cutting torch, and more particularly, is installed in an oxygen gas cutter, a plasma arc cutter, and a laser cutter, which is used to cut a cutting member into a shape required by a program. The present invention relates to a structure of a duct and a hood of a traveling type automatic cutting machine dust collecting facility which efficiently collects dust and harmful gas generated during cutting at a cutting workshop.

In general, a large amount of dust and smoke is generated in the heat cutting operation, which pollutes the surrounding air, degrades the working environment, and adversely affects the health of workers. Removal is an essential requirement for the working environment. In particular, in plasma arc cutting and laser cutting, an on-board type dust collector which mounts a dust collector directly on the equipment to perform such a purpose, and a separate open / close fume hood that can smoke in the lower part of the cutting table. The stand Alone type dust collector which performs the dust collecting function by connecting the to a fixed dust collector and connecting it to a separate dust collector outside the cutting table is widely used. In addition, recently installed a fume hood that moves in synchronization with the movement of the cutter in the lower part of the cutting plate, and connects it to the water tank type main duct, and the mobile lower suction method for connecting the main duct again to a separate dust collector outside the cutting plate. A separate dust collector was applied for a utility model (application number 96-68748).

However, such a conventional dust collector has some problems. First, the mounted dust collector is equipped with a heavy dust collector in the mobile cutting equipment, which makes the equipment heavy and enlarges the structure of the cutter, thereby increasing the capacity of the dust collector. In particular, it is a big constraint in making fast and high precision cutters. In addition, the separate type dust collector has the advantage that the equipment is lighter, and the capacity of the dust collector can be increased indefinitely, but it requires an increase in expenses for manufacturing the cutting table and the flue hood and a separate dust collector installation place. In addition, the recently designed mobile suction-type separate dust collector (utility application No. 96-68748) has the advantage that the cutting equipment becomes lighter and the dust collector capacity can be increased indefinitely, but by installing a fume hood having the same width as the cutting table In the case of large equipment with a large span, the width of the exhaust fume hood in the lower part increases with the manufacturing cost, and the dust collection efficiency varies greatly depending on the cutting position, and the air is always sucked within the full width of the flue hood. Therefore, when the width of the flue gas hood is widened, the dust collection efficiency is sharply lowered, which causes almost no role as a dust collector.

The present invention has been made to solve the above problems, while locally tracking the movement of the cutting torch to suck dust, dust and harmful gas generated during cutting, and mounted on the dust collector moving device in the lower part of the surface plate It is a mobile bottom suction type mounted dust collector which sends dust to the dust collector to filter out dust and discharges clean air, and provides it to the structure of the flue hood that moves in synchronization with the torch and the structure of the duct connecting it to the dust collector. will be.

In order to achieve the above object, a dust collecting device which moves in synchronism with a torch for collecting and filtering dust, dust and harmful gases generated in automatic cutting operations such as plasma arc jet cutting, oxygen gas cutting and laser cutting, etc. The exhaust hood is synchronized with the cutting torch by forming an air intake hole in the exhaust hood, connecting a bending pipe, connecting a flexible and durable foldable duct or hose, and fixing it to the duct drag chain. The folding duct or hose does not fold or deform even when moving, and it flexes flexibly, thereby providing a structure that can efficiently deliver the sound pressure of the dust collector and the dust collecting fan to the exhaust fume hood.

1 is a front view of the present dust collector

2 is an external view of a dust collector moving device of the present invention

3 is a plan view of the present invention dust collector moving device and dust collection duct

4 is a structural diagram of the dust collecting duct and the exhaust hood of the present invention

<Explanation of symbols for the main parts of the drawings>

(1): Cutting equipment main body (2): Cutting table

(3): flue hood (4), (4a): dust collector moving device

(5): dust collecting duct case 6: cutting torch

(7): Rail for dust collector moving device (8): Rail for cutting device

9: torch carriage 10: dust collecting fan

(11): Dust collector (12): Rack gear for feed fume hood

(13): Foldable (javabar) duct (14): Duct drag chain

(15): Air intake hole (16): Drag chain guide rail

(17), (17a): bending pipe (18): hole for conveying bending pipe

(19): connector 20, 20a: flue hood feed motor

Referring to the configuration and operation of the present invention in detail based on the accompanying drawings as follows.

1 is a front view of the present dust collector,

2 is an external view of a dust collector moving device of the present invention,

3 is a plan view of the present invention dust collector moving device and dust collecting duct,

Figure 4 shows the structural diagram of the dust collecting duct and the exhaust hood of the present invention.

Flue fume hood (3) for the lower dust collecting device, which moves in synchronization with a torch for collecting and filtering dust, dust, and harmful gases generated during automatic cutting operations such as plasma arc jet cutting, oxygen gas cutting, and laser cutting. By forming an air suction hole 15 in the connection, connecting the bending pipe 17, by connecting a flexible and durable foldable duct 13 or hose, and fixing it to the duct drag chain 14, When the exhaust hood 3 is synchronized with the cutting torch 6, the folding duct 13 or the hose does not be folded or deformed and is flexibly bent while moving, so that the negative pressure of the dust collector 11 and the dust collecting fan 10 is reduced. It is composed of a structure that can deliver iv) efficiently to exhaust fume hood.

As shown in FIG. 1, a slat, lattice, mesh, or a combination thereof is formed at a lower portion of the cutting device main body 1 moving on the rail 8, and the upper and lower cutting plates 2 are not blocked. The fume hood 3 is installed in the dust collector moving apparatuses 4 and 4a of the dust collector moving device 4 and 4a, which is fixedly installed and is provided with a flue hood 3 that can move in coordination with the cutting torch 6 at the lower part of the cutting table 2. It should be moved from side to side according to the movement of (6). In order to maintain continuous suction function in variable position, the present invention is designed to apply the drag chain method used to connect electric cables or hoses to mobile equipment to the duct structure. Was

That is, the dust collector 11 is connected to the connecting pipe 19 and the bending pipe 17, the bending pipe 17 is one end of the fold duct 13 or hose and the drag chain 14 having excellent flexibility and durability Is connected. At this time, the foldable duct 13 or the hose is partially fixed along the longitudinal direction of the drag chain 14. When the flue gas hood 3, which is synchronized with the movement of the cutting torch 6, moves from side to side, the bend pipe 17a connected thereto moves along the flue hood 3, and the bend tube 17a has a foldable duct ( 13) or the other end of the hose and the drag chain 14 is connected. At this time, the drag chain 14 protects the fold duct 13 or hose, receives the tension and compression force instead, and creates a constant bending radius, so that the fold duct 13 or hose is not twisted or folded, and It serves to maintain a constant cross-sectional shape at all times. In addition, the drag chain guide rail 16 serves to guide the drag chain 14 to always be unfolded and folded in a constant direction. At this time, the folding duct 13 or the hose is a material that does not leak air, it should be excellent in flexibility and durability, and sufficient to maintain the original form without being crushed even in the negative pressure generated in the dust collecting fan 10 Should have strength.

The flue gas hood 3 provided in the dust collector moving apparatuses 4 and 4a is a cutting means for detecting the drive unit of the cutting torch 6 and the like, and is cut on the torch carriage 9 of the cutting device main body 1. By allowing the position of the torch 6 to be sensed, the position of the cutting torch 6 transmitted through the sensing means is checked so that the fume hood 3 moves in synchronization with the cutting torch 6. On the other hand, the lateral position control of the cutting torch 6 is a numerically controlled electronic device installed on the carriage 9 of the cutter main body 1, which can position control and confirm the position of the cutting torch 6. The position control in the direction is controlled by the CNC device of the cutter body 1 and the synchronous servo or general electrically controlled power shaft, so that the exhaust fume hood 3 is always in the same position as the cutting torch 6. Such a configuration is configured to always be integrally operated according to a mechanical configuration, a numerical control method, or a positioning command by an electronic device, and the like is generally related to the movement control configuration of the fume hood 3.

According to the present invention configured as described above, since the working position of the cutting torch 6 for cutting operation is confirmed by the sensing means provided on the drive unit, the fume hood 3 is always positioned under the cutting torch 6 during cutting. Even if the cutting torch 6 is located at any position, only suction of the portion corresponding to the flue gas hood 3 is sufficient, so that dust, smoke and harmful gas generated during cutting can be efficiently sucked even with a small suction force.

On the other hand, the position control of the exhaust hood (3) is a numerically controlled electronic device installed in the torch carriage (9) of the cutter body (1), which moves to be synchronized with the position of the cutting torch (6), which is installed in the lateral direction. It is driven by the exhaust hood feed rack gear 12 and pinion, the feed motors 20 and 20a, and the like.

Therefore, the present invention has a working position of the cutting torch for cutting, which is confirmed from the sensing means installed on the drive unit, so that the fume hood is always located under the cutting torch during cutting, so that the cutting fume corresponds to the flue hood no matter where the cutting torch is located. Since only the suction of the part is sufficient, there is an effect of efficiently inhaling dust, smoke and harmful gases generated during cutting even with a small suction force.

Claims (1)

Flue fume hood (3) for the lower dust collecting device, which moves in synchronization with a torch for collecting and filtering dust, dust, and harmful gases generated during automatic cutting operations such as plasma arc jet cutting, oxygen gas cutting, and laser cutting. By forming an air suction hole 15 in the connection, connecting the bending pipe 17, by connecting a flexible and durable foldable duct 13 or hose, and fixing it to the duct drag chain 14, When the exhaust hood 3 is synchronized with the cutting torch 6, the folding duct 13 or the hose does not be folded or deformed and is flexibly bent while moving, so that the negative pressure of the dust collector 11 and the dust collecting fan 10 is reduced. The duct structure of the dust collector which moves in synchronism with the movement of the cutting torch, characterized in that the structure is configured to efficiently transfer iii) to the flue hood.