KR200211800Y1 - a dust collector - Google Patents

Abstract

Conventional dust collectors have a low pressure drop when the opening / closing lid of the suction hole is not completely closed or opened, and the dust collection function is deteriorated. The cost of installation was high, and in this case, the long-term use of the equipment made it difficult to completely seal the dust and cutting remnants stuck to the sealing part of the opening and closing lid, which is why the separate dust collector function deteriorated with time. In addition, the maintenance cost is high, and the dust collector capacity has to be larger than necessary, and the separate type dust collector has a separate lower part of the cutting table to improve the disassembly, such as the torch cannot get sufficient dust collection effect away from the suction hole. Install the dust collection hood and install the dust collection hood on the cutting equipment and The dust and harmful gas entering the dust collection hood are introduced into the dust collecting duct through the connecting duct and sealing pad opening and closing device, and the dust collecting duct is connected to the end of the dust collecting duct to solve the problem of the existing dust collector. The dust collection hood opening and closing device in the lower part of the plate can be selectively opened according to the position of the torch, which can solve the problem of suction pressure loss of the existing separate type dust collector, deterioration of dust collection capacity according to the position, installation cost and maintenance problems. In addition, it is designed to solve the problem of insufficient capacity of the mounted dust collector, dust sticking to the lower part of the cutting member.

Description

Dust collector of traveling type automatic cutting machine {a dust collector}

The present invention is installed in an oxygen gas cutter, a plasma arc cutter, and a laser cutter used to cut a steel plate in a required shape to efficiently suck and filter out dust and harmful gas generated during cutting, and filter the purified air. The present invention relates to a dust collector of a traveling type automatic cutting machine for discharging.

In general, during the heat cutting operation of the metal, a large amount of dust and smoke is essentially generated, which pollutes the surrounding air and thus adversely affects the health of workers, thus eliminating harmful gases, smoke, and dust. It is essential for improving the environment. Particularly, in plasma arc cutting and laser cutting, on board type dust collectors equipped with a dust collector directly on the cutting equipment and separate fixed dust collecting ducts for exhaust smoke are installed in the lower part of the cutting plate to perform this purpose. In addition, a stand alone type dust collector which performs a dust collecting function by extending the fixed dust collecting duct out of the cutting plate and connecting to a separate dust collecting device is widely used. However, such a conventional dust collector method has some problems. First of all, the mounted dust collector has to be equipped with a considerable amount of dust collector on the cutter, which leads to an increase in the structure of the cutter and increases the collector capacity. In order to lighten the equipment, it is difficult to mount a dust collector with sufficient dust collection function. In addition, the larger and heavier the equipment, the greater the capacity of the motor, which is a constraint on the manufacture of high precision cutters. In addition, there is a serious problem that a large amount of dust is attached to the lower part of the iron plate in the process of moving to the dust collection hood installed on the side edge of the cutting surface is not sucked directly generated dust.

In addition, since the separate type dust collector is installed separately, the cutter is lighter, and the capacity of the dust collector can be increased as much as desired, but the dust collecting capability can be improved, but it requires a considerable additional cost to manufacture the hood and the duct. In general, the structure of a separate dust collector is provided with a duct fixed in the rail direction (longitudinal direction) in the lower part of the surface plate, and the dozens of suction holes are formed on the side or top of the duct for suction of dust and harmful gas. Each suction hole is equipped with an open / close lid that is electronically, mechanically or oilically or pneumatically operated to open only the suction hole closest to the torch as the cutting equipment is moved. It is introduced into the fixed duct through the duct is connected to the dust collector installed separately.

However, such a separate dust collector has a loss of pressure due to a large loss of pressure if the opening / closing lid of the suction hole is not completely closed or opened. Due to this problem, most of the separate dust collectors use a pneumatic pressure for each lid to ensure the opening and closing of the lid. Costs are increased by installing hydraulic or electrical switchgear. However, even in this case, if the equipment is used for a long time, dust and cutting residue sticks to the sealing part of the opening / closing lid, making it difficult to completely seal it. For this reason, the function of the separate dust collector is deteriorated with time, and the maintenance cost is high. Capacity should also be larger than necessary. In addition, apart-type dust collectors also had problems such as insufficient dust collection effect when the torch was moved away from the suction hole.

The present invention installs a separate dust collection hood moving device in the lower part of the cutting table to improve the above-mentioned end, and equipped with a dust collection hood to move in synchronization with the cutting equipment, dust and harmful gas entering the dust collection hood is connected It is introduced into the dust collecting duct through the duct and sealing pad opening and closing device, and the problem of the existing dust collector can be solved by connecting the dust collector installed separately at the end of the dust collecting duct. Can be selectively opened to solve the problem of suction pressure loss of the existing separate type dust collector, deterioration of the dust collection capacity according to the position, installation cost and maintenance problems, and also insufficient capacity of the mounted dust collector, the lower part of the cutting member It is designed to solve the problem of dust sticking. If follows.

1 is a front view of the installation state of the present invention.

Figure 2 is a structure diagram of the dust collecting duct and the duct opening and closing device.

Figure 3 is a plan view of the dust collection hood and duct installation of the present invention.

Figure 4 is a side view of the dust collection hood and duct installation state of the present invention.

5 is an assembly view of the dust collecting duct and sealing pad opening and closing device of the present invention.

`` Explanation of symbols for the main parts of the drawings ''

(1) cutting equipment mains (2) cutting plates (3) cutting torches (4) dust collection hoods

(5) duct opening and closing device (6) torch carriage moving direction (8) cutting member

(9) torch carriages (10) dust collection ducts (11) sealing pad supports

(12) sealing pad opening rollers (13) sealing pads (14) sealing pad opening

(15) Opening and closing device covers (16) ducts for connection (20) dust collection hood drives

(21) Cutter rails (22) Cutting hood drive rails

As shown in FIG. 1, the cutting plate 2 is fixedly installed at the lower portion of the cutting device main body 1 moving on the cutter rail 21, and the dust collection hood driving device 20 is separately driven at the lower portion of the cutting plate 2. ) And a dust collecting hood (4) partitioned into several compartments, each of which is provided with a pneumatic, hydraulic, mechanical or electrical duct opening and closing system (5) that opens and closes in synchronization with the movement of the torch. On the other hand, when there are two or more cutting torches 3, several of the opening and closing devices 5 installed in the dust collecting hood 4 are simultaneously opened, or the dust collecting hood drive device 20 and the dust collecting hood 4 and dust collecting duct are simultaneously opened. A unit 10 can be installed to operate as many as the number of the cutting torches 3.

The position control of the cutting torch 3 in the lateral direction (rail vertical direction) 6 is an electronic device installed in the torch carriage 9 in the cutter body 1 to check the position of the cutting torch 3 directly below. Open the dust collecting duct switch 5 located in the vertical direction (rail direction), the position and control of the CNC machine of the cutter body 1 and the synchronous control servo shaft or general electrically controlled power shaft. In this way, the dust collecting hood 4 is always located directly below the cutting torch 3. Such a configuration is configured to always be integrally operated in accordance with a mechanical configuration, a numerical control type, or a positioning command by an electronic device, and so on.

On the other hand, the structure of the dust collecting duct 10 installed in the rail direction (longitudinal direction) is a U-shaped structure with an empty inside and only the upper portion is installed, the support 11 is installed at regular intervals on the top, and the durability and When the sealing pad 13 made of a material such as flexible rubber or a specially treated leather is covered on the opening, the negative pressure generated in the dust collecting duct 10 of the dust collector separately installed acts. The sealing pad 13 is tightly attached to the upper surface of the dust collecting duct 10. At this time, the support 11 of the upper part of the dust collecting duct prevents the sealing pad 13 from being sucked into the dust collecting duct 10 by the strong sound pressure, and the upper part of the dust collecting duct 10 as shown in the figure. And a sealing pad opening device (14) comprising a cover (15), which is configured to lift the sealing pad (13) in close contact with the dust collecting duct (10) by sound pressure to collect dust hood driving device. Dust and harmful gas sucked from the flue hood (4) installed in (20) can be sucked into the dust collecting duct 10 through the connecting duct (16). On the other hand, the sealing pad opening device 14 is composed of several rollers 12 and a cover 15, and the two rollers installed below in FIG. 2 are pressed so that the sealing pad 13 is always attached to the dust collecting duct 10. It serves to serve, the upper two rollers serve to lift the sealing pad 13 and the dust and harmful gas is introduced into the dust collecting duct 10 through the open portion in which the sealing pad 13 is lifted.

The present invention configured as described above allows the operation position of the cutting torch 3 for cutting operation to be confirmed from the sensing means installed on the drive unit so that the opening and closing device 5 positioned below the cutting torch 3 is always opened during cutting. As a result, even if the cutting torch 3 is located at any position, there is an effect of efficiently inhaling dust, smoke and harmful gas generated during cutting with a small suction force.

Claims (1)

In the automatic traveling plasma arc, laser, and oxygen gas cutting device, a fixed cutting plate (2) is provided in the lower portion of the cutter body (1), which is not blocked, and a separate rail (below) of the cutting plate (20). 22, a dust collection hood driving device 20 which is moved in synchronization with the cutting machine 1 is installed on the dust collecting hood 4 divided into several sections within the moving width region of the cutting torch 3 and each partitioned hood. According to the movement of the cutting torch (3), there is an opening and closing device (5) which is operated by oil, pneumatic, electric and mechanical, and flexible sealing on the U-shaped dust collecting duct 10 and the dust collecting duct 10 installed in the direction of the cutter rail. Dust collecting device of the traveling type automatic cutting machine consisting of a sealing pad opening and closing device (5) consisting of several rollers (12), a cover (15) so as to lift and lower it while moving with the pad (13).