CN111843304A

CN111843304A - Assembled plasma cutting machine rack

Info

Publication number: CN111843304A
Application number: CN202010684583.XA
Authority: CN
Inventors: 俞美萍
Original assignee: Nanjing Iron and Steel Co Ltd
Current assignee: Nanjing Iron and Steel Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-10-30

Abstract

The invention discloses an assembled plasma cutting machine rack, which is characterized in that only angle steel, an upper supporting plate and a movable baffle are added on the basis of the original plasma rack, the improvement cost is low, the operation is simple and easy, the improved plasma cutting machine rack only needs to replace the upper supporting plate which is frequently damaged by a cutting gun, the plasma cutting machine rack does not need to be integrally replaced, the plasma cutting machine rack can be replaced at any time, tools and technologies are not needed, and a plasma operator can replace the plasma cutting machine rack at any time according to the field condition. The split type plasma cutting machine rack capable of being assembled at will not only ensures the precision of products, but also reduces the cost of spare parts and the labor intensity of workers, saves the production cost and improves the production efficiency.

Description

Assembled plasma cutting machine rack

Technical Field

The invention belongs to the technical field of metal processing, and relates to a plasma cutting machine rack.

Background

In a steel mill, a plasma cutting machine is mainly used for cutting four sides of a steel plate, a large amount of smoke and cutting slag are generated during plasma cutting, the smoke is harmful to a body, and a dust removal system is required for removing dust. As shown in fig. 1, a plasma cutting torch 4 generates a large amount of smoke and cutting slag 5 when cutting a steel plate 6 to be cut, the steel plate 6 to be cut is placed on a plasma cutting machine rack 3, partition plates 32 of the plasma cutting machine rack 3 are 300mm high, the space between the partition plates is 300mm, a closed space formed between the two partition plates and the steel plate to be cut is a dust removal flue, and a movable air blowing port 7 mounted on the cutting machine sucks the smoke generated during cutting through an air suction port 8 formed between the two partition plates and the steel plate and moved. A large amount of slag and fire smoke produced during cutting often damage the partition plate, cause the upper surface of the partition plate to be uneven, and make the steel plate placed unevenly to influence the cutting quality of the steel plate. After the partition boards are damaged, a sealing space cannot be formed between the two partition boards and the steel plate, and the dust removal effect is influenced. The whole plasma cutting bench must be replaced after 6 months of use due to the influence on the cutting quality and dust removal effect of the steel plate. The length of the plasma cutting rack 4 is 28m, the width is 3m, the height is 300mm, a partition board is arranged at the interval of every 300mm, 6 ten thousand yuan is needed for manufacturing one rack, and 15 plasma cutting racks are totally arranged in a steel mill, so that millions of expenses are needed for manufacturing and replacing one year, and the manufacturing can be carried out when the steel mill is stopped, so that serious economic loss is caused.

Disclosure of Invention

The invention aims to improve the plasma cutting machine rack and reduce the economic loss caused by manufacturing and replacing the rack. The invention specifically adopts the following technical scheme:

an assembled plasma cutting machine rack is characterized by being formed by assembling a plurality of upper supporting plates, a plurality of movable baffles and a lower rack, wherein two angle steels are welded on the top surface of the lower rack and are respectively positioned at two ends of the lower rack in the width direction, the included angles of the two angle steels are opposite, and the length direction of the two angle steels is consistent with the length direction of the lower rack; the upper supporting plate is an inverted convex steel plate and is vertically placed on the bottom surfaces of the angle steels at the two ends of the lower rack through the steps at the two ends of the upper supporting plate, and the partition plates of the upper supporting plate and the lower rack are arranged at intervals in the length direction of the lower rack; the movable baffle is horizontally placed on the angle steel between the adjacent upper supporting plates to play a role of horizontally positioning the upper supporting plates.

The improved plasma cutting machine rack only needs to replace the upper supporting plate which is frequently damaged by a cutting gun, does not need to be integrally replaced, can be replaced at any time, does not need tools and technologies, and can be replaced at any time by a plasma operator according to the field condition. The split type plasma cutting machine rack capable of being assembled at will not only ensures the precision of products, but also reduces the cost of spare parts and the labor intensity of workers, saves the production cost and improves the production efficiency.

Drawings

FIG. 1 is a layout view of a plasma cutter;

FIG. 2 is a schematic view of a modified plasma cutting machine gantry;

FIG. 3 is a schematic view of a lower stage;

FIG. 4 is a schematic view of an upper support plate;

FIG. 5 is a schematic view of a horizontal flapper;

FIG. 6 is a schematic view of a lower stage spacer.

Detailed Description

The present invention is described in further detail below with reference to specific embodiments and the attached drawings.

The improved plasma cutting machine comprises an upper support plate 1, a movable baffle plate 2 and a lower rack 3, wherein the rack is schematically shown in fig. 2, and a cut steel plate is placed on the upper support plate 1 to operate. The upper supporting plate 1, the movable baffle 2 and the lower rack 3 are spliced and connected without welding or screw fixation. Two No. 6 angle steels 31 are welded on the top surface of the lower rack 3, the two angle steels 31 are respectively positioned at two ends of the lower rack 3 in the width direction, the included angle of the two angle steels 31 is opposite, and the length directions of the two angle steels are consistent with the length direction of the lower rack 3. The upper supporting plate 1 is an inverted convex steel plate, and is vertically placed on the bottom surfaces of the angle steels 31 at the two ends of the lower rack 3 through steps at the two ends of the upper supporting plate in the length direction (the length direction of the upper supporting plate is consistent with the width direction of the lower rack, and the width direction of the upper supporting plate is consistent with the length direction of the lower rack). The partition plates 32 of the upper support plate 1 and the lower stage 3 are arranged at intervals in the longitudinal direction of the lower stage 3. The movable baffle 2 is horizontally placed on two sides of each upper supporting plate 1 for positioning, and the movable baffle 2, the upper supporting plates 1 and the angle steel 31 are not welded and fixed. In 3 length direction (being the width direction of baffle 32 and last backup pad 1) of rack down, go up and leave the 2mm clearance between backup pad 1 and the horizontal adjustable fender 2, in 3 width direction of rack down, go up

backup pad

1 and 6# angle steel 31 and leave the 5mm clearance, the effect of keeping the clearance is for changing the convenience. Go up backup pad 1 and appear easily after using cutting the sediment bonding and warp and need often change, backup pad 1 can conveniently be changed at will in this kind of design, can guarantee the plane degree of backup pad 1 top surface, can change at will alone moreover, with low costs, convenient to use.

The structural schematic diagram of the lower rack is shown in fig. 3, and the layer belongs to a stable layer, is not easy to damage and does not need to be replaced. The invention directly utilizes the existing lower rack (the whole is a box body without an upper cover and is provided with a partition board along the length direction) for improvement, and the No. 6 angle steel is welded on the top surface of the partition board 32 of the lower rack. The movable baffle 2 is horizontally placed on the 6# angle steel, the top surface height of the movable baffle is higher than half of the height of the upper supporting plate 1, but the height of the upper supporting plate is not more than the height of the upper supporting plate, the upper supporting plate 1 can be effectively positioned, and the flatness of the top surface of the upper supporting plate is not influenced. For sealing and stability, the height of the bottom surface of the upper support plate 1 should be lower than the height of the top surface of the partition plate 32 of the lower rack 3. During plasma cutting, smoke passes through the partition plates of the lower rack.

As shown in figure 4, the upper supporting plate is a steel plate with steps at two ends, is cut and blanked, is vertically assembled with angle steel in an inverted convex shape, is 15mm thick, and is 100mm long and 2960mm high. The steps vertically fall on the angle steel, and the upper parts of the steps are assembled and fixed at two sides by the movable baffle plates. As shown in FIG. 5, the flapper is a piece of blanking steel plate 20mm thick, 100mm wide and 250mm long. The lower rack deck is cut and blanked as shown in fig. 6. After the lower stand is installed on site, the movable baffle and the upper supporting plate are assembled together without welding, and the upper supporting plate can be replaced at any time when being deformed. The specific size of the plasma cutting stand can be adjusted according to the width and thickness of the steel plate to be cut.

Claims

1. An assembled plasma cutting machine rack is characterized by being formed by assembling a plurality of upper supporting plates (1), a plurality of movable baffles (2) and a lower rack (3), wherein two angle steels (31) are welded on the top surface of the lower rack (3), the two angle steels (31) are respectively positioned at two ends of the lower rack (3) in the width direction, included angles of the two angle steels (31) are opposite, and the length direction of the two angle steels is consistent with the length direction of the lower rack (3); the upper supporting plate (1) is an inverted convex steel plate and is vertically placed on the bottom surfaces of the angle steels (31) at the two ends of the lower rack (3) through the steps at the two ends of the upper supporting plate, and the partition plates of the upper supporting plate (1) and the lower rack (3) are arranged at intervals in the length direction (32) of the lower rack (3); the movable baffle (2) is horizontally placed on the angle steel (31) between the adjacent upper supporting plates (1) to play a role in horizontally positioning the upper supporting plates (1).

2. A built-up plasma cutter stand according to claim 1, characterized in that the upper support plate (1) is spaced from the flapper (2) by 2mm in the length direction of the lower stand (3).

3. A built-up plasma cutter stand according to claim 1, wherein the upper support plate (1) is spaced from the angle steel (31) by 5mm in the width direction of the lower stand (3).

4. An assembled plasma cutting machine stand according to claim 1, characterized in that the height of the top surface of the movable baffle (2) is more than half of the height of the upper support plate (1) and does not exceed the height of the top surface of the upper support plate (1).

5. A built-up plasma cutter stand according to claim 1, wherein the height of the bottom surface of the upper support plate (1) is lower than the height of the top surface of the partition (32) of the lower stand (3).