CN112959162A - Device and method for cutting square billet defects and flash - Google Patents

Abstract

The invention relates to a device and a method for cutting defects and flash of a square billet, which comprises a U-shaped frame, a fastener, hanging pieces, a motor and a steel wire brush, wherein the U-shaped frame is a U-shaped frame, an opening is closed through the fastener, the U-shaped frame is used for containing the square billet, the U-shaped frame is externally fixed with a plurality of hanging pieces, the steel wire brush is fixedly connected with an output shaft of the motor, and the motor drives the steel wire brush to rotate. The invention has the advantages that: the method can effectively remove the fins on the square billet longitudinally cut from the plate blank, thereby effectively reducing the blockage of a flue caused by the falling of the cutting burl during heating and the surface scab and folding formed on the product by the cutting burl, or reducing the steel piling accident caused by the blockage of the rolling mill guide by the cutting burl.

Description

Device and method for cutting square billet defects and flash

Technical Field

The invention relates to a device and a method for cutting square billet defects and flash.

Background

At present, a flame mode is mostly adopted for cutting continuous casting billets, as shown in fig. 1, a certain amount of burrs, also called cutting burls, can be formed by cutting slag in the cutting process, the burrs can be brought into a heating furnace without being removed, the burrs in the heating furnace can fall off, some burrs can not fall off, the fallen burrs can easily block a flue, the fallen burrs enter a dephosphorization machine along with steel billets, most of the burrs are removed, but a small part of the burrs are not removed, the small part of the undeleted burrs can form scabs on the surfaces of products in the rolling process, judgment waste is generated in serious cases, or the cutting burls block a rolling mill guide to cause steel piling accidents, so the burrs of the cut billets are necessarily removed before the steel billets enter the heating furnace.

In the prior art, Chinese patent: CN208067273U discloses a steelmaking continuous casting billet cutting nodule remove device, remove system and cutting system thereof, and this technical scheme is that the cutting nodule is cleared up with the blade. Chinese patent: CN206561187U discloses a continuous casting billet cuts online cleaning device of tumour, carries out online clearance to continuous casting billet flame cutting tumour. High-pressure nitrogen purging and cutting are adopted to clean cutting nodules. Similarly, chinese patent publication No.: CN106914678A discloses an online cleaning device and method of continuous casting billet cutting nodules, and is also to adopt high pressure nitrogen gas to sweep and mechanical cleaning combination clearance cutting nodules. Chinese patent: CN206509297U discloses a cutting edge purging device for a six-strand continuous casting billet flame cutting device, which adopts compressed air to clean the cutting edge. Although the technical scheme can clean the cutting burls, even on line, the phenomenon of incomplete cleaning exists due to the limitation of the installation position of equipment.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a device and a method for cutting square billet defects and flashes, which can effectively remove the defects and cutting nodules on the square billet longitudinally cut from a plate blank, thereby effectively reducing the blockage of a flue and the surface scab and folding formed on a product by the cutting nodules due to the falling of the cutting nodules during heating or reducing steel piling accidents caused by the blockage of the cutting nodules on a rolling mill guide.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a device of cutting square billet defect and overlap, includes U type frame, fastener, hangs piece, motor, steel brush, U type frame be U-shaped frame, the opening part is sealed through the fastener, U type frame is used for splendid attire square billet, U type frame external fixation has a plurality of to hang the piece, steel brush and the output shaft fixed connection of motor, motor drive steel brush rotates.

The hydraulic lifting device further comprises a movable trolley, and a lifting hydraulic cylinder is fixed on the movable trolley.

The hanging pieces are fixed at the upper part of the U-shaped frame, the opening of the top end of the U-shaped frame and the lower part of the U-shaped frame.

The fastener comprises a buckle head and a hanging rod, the buckle head is of a four-frame structure, and the buckle head is fixedly connected with the U-shaped frame; the hanging rod is of an L-shaped structure, one end of the hanging rod is movably hinged with the U-shaped frame, and the other end of the hanging rod is inserted into the buckle and is fixedly connected with the buckle through a bolt.

A method for cutting square billet defects and flash comprises the following steps:

1) the crane hooks the hanging piece, lifts the U-shaped frame, puts the square billet into the U-shaped frame, and buckles the fastener;

2) adjusting the hook position of the crane to suspend the U-shaped frame and turn over, wherein the square billet turns over along with the U-shaped frame, and the flange at the bottom of the square billet turns over to the upper part;

3) placing the turned square billet on a rack, and moving the square billet to a roller way by using a moving trolley;

4) and starting the motor, rotating the steel wire brush and cleaning the flash.

Compared with the prior art, the invention has the beneficial effects that:

the invention can effectively remove the flash (cutting tumor) on the square blank longitudinally cut by the plate blank, thereby effectively reducing the blockage of flue caused by the falling of the cutting tumor during heating and the surface scab and folding formed on the product by the cutting tumor, or reducing the steel piling accident caused by the blockage of the rolling mill guide by the cutting tumor. The U-shaped frame can be used for turning over a plurality of square billets simultaneously, and the working efficiency is improved. The turning of the square billet can completely expose the cutting defects on the square billet, so that the cutting defects are convenient to clean and observe, and the full and thorough cleaning of the flash is realized.

Drawings

Fig. 1 is a schematic view of a slab cut into square billets and cut flashes.

Fig. 2 is a state diagram of a crane hooking a U-shaped frame with a square billet.

FIG. 3 is a schematic view of a fastener closure U-shaped frame.

Fig. 4 is a state diagram of the crane hooking U-shaped frame being suspended.

Fig. 5 is a schematic view of the inverted U-shaped frame.

Fig. 6 is a schematic view of the fastener installation.

Fig. 7 is a schematic structural view of the buckle.

FIG. 8 is a schematic view showing a state where the flash is cleaned.

In the figure: 1-square billet 2-flash 3-cutting seam 4-U-shaped frame 5-fastener 6-hanging piece 7-hook 8-travelling car 9-lifting hydraulic cylinder 10-motor 11-steel brush 12-roller table 51-button 52-hanging rod 53-bolt.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Referring to fig. 2-8, a device for cutting defects and flashes of a square billet comprises a U-shaped frame 4, fasteners 5, hanging pieces 6, a motor 10 and a steel wire brush 11, wherein the U-shaped frame 4 is a U-shaped frame, an opening is sealed by the fasteners 5, the U-shaped frame 4 is used for containing the square billet 1, the hanging pieces 6 are fixed on the outer portion of the U-shaped frame 4, the steel wire brush 11 is fixedly connected with an output shaft of the motor 10, and the motor 10 drives the steel wire brush 11 to rotate. The hanging pieces 6 are fixed at the upper part and the top end opening of the U-shaped frame 4 and the lower part of the U-shaped frame 4, so that the force application of the crane is uniform, and the overturning stability is ensured.

Referring to fig. 6-8, the device for cutting the billet defects and the flash further comprises a moving trolley 8, and a lifting hydraulic cylinder 9 is fixed on the moving trolley 8. The fastener 5 comprises a buckle head 51 and a hanging rod 52, the buckle head 51 is of a four-frame structure, and the buckle head 51 is fixedly connected with the U-shaped frame 4; the hanging rod 52 is of an L-shaped structure, one end of the hanging rod 52 is movably hinged with the U-shaped frame 4, and the other end of the hanging rod 52 is inserted into the buckle head 51 and is fixedly connected with the buckle head 51 through a bolt 53.

Referring to fig. 1, a plate blank is cut into a square blank 1 by flame, molten slag, also called flash 2, exists below the square blank 1, and the molten slag is below the square blank 1, and some molten slag is firmly attached to a steel blank and can hardly be removed. If the square billet 1 is turned over, the molten slag (the flash 2) is conveniently removed, so that the flash 2 (the cutting edge) and the defects are exposed firstly, the cleaning of the flash 2 and the discovery of the defects are convenient, the exposure of the flash 2 is to turn the whole cut square billet 1 by 180 degrees by using a crane, and then the steel wire brush 11 is used for cutting the defects and the flash 2 of the square billet 1, as shown in the figure 2-5, the method specifically comprises the following steps:

1) a hook 7 of a crane hooks a hanging piece 6 and is sleeved at one end of a square billet 1, a U-shaped frame 4 is sleeved at a position 800mm away from the end surface of the square billet 1, then another U-shaped frame 4 is hung and sleeved at the other end of the square billet 1, the U-shaped frame 4 is sleeved at a position 800mm away from the other end surface of the square billet 1, the two U-shaped frames 4 are in the same direction, and a fastener 5 is buckled, as shown in figure 2;

2) turning over the square billets 1 in the arrow direction, turning over all the square billets 1 by 180 degrees, turning over the square billets 1 along with the U-shaped frame 4, turning over the fins 2 at the bottom of the square billets 1 to the upper part, and enabling the fins 2 on the square billets 1 to be all upward, wherein the hook positions of the crane are adjusted to enable the U-shaped frame 4 to be suspended, and the square billets 1 are turned over in the arrow direction, as shown in fig. 3, so that all the fins 2 on the square billets 1 are turned over;

3) referring to fig. 8, the turned square billet 1 is placed on a rack, the square billet 1 is moved onto a roller way 12 by a moving trolley 8 matched with a lifting hydraulic cylinder 9, the square billets 1 next to each other are separated, and flash 2 is exposed;

4) the motor 10 is started, the wire brush 11 rotates, and the flash 2 is cleaned, as shown in figure 8. And finally, checking whether the flash 2, the cutting defects and the like are remained, and if so, continuing to clean.

Because the cutting burls are exposed on the upper surface of the square billet 1, the cutting burls can be cleaned by the steel wire brush 11, and can also be cleaned by other modes, such as a blade, a grinding wheel, a shovel and the like, so that the cutting defects can be thoroughly cleaned.

Claims (5)

1. The utility model provides a device of cutting square billet defect and overlap, its characterized in that includes U type frame, fastener, hangs a piece, motor, steel brush, U type frame be the U-shaped frame, the opening part is sealed through the fastener, U type frame is used for splendid attire square billet, U type frame outside is fixed with a plurality of and hangs the piece, steel brush and the output shaft fixed connection of motor, the motor drive steel brush rotates.

2. The apparatus of claim 1, further comprising a traveling carriage, wherein the traveling carriage is fixed with a hydraulic lifting cylinder.

3. The apparatus for cutting billet defects and flashes as claimed in claim 1, wherein said suspension elements are fixed to the upper and top openings of the U-shaped frame and to the lower part of the U-shaped frame.

4. The apparatus for cutting billet defects and flashes as claimed in claim 1, wherein the fastener comprises a fastener head and a hanging rod, the fastener head has a four-frame structure and is fixedly connected with the U-shaped frame; the hanging rod is of an L-shaped structure, one end of the hanging rod is movably hinged with the U-shaped frame, and the other end of the hanging rod is inserted into the buckle and is fixedly connected with the buckle through a bolt.

5. A method for cutting billet defects and flashes, which is realized by the device of any one of claims 1 to 4, characterized in that it comprises the following steps:

1) the crane hooks the hanging piece, lifts the U-shaped frame, puts the square billet into the U-shaped frame, and buckles the fastener;

2) adjusting the hook position of the crane to suspend the U-shaped frame and turn over, wherein the square billet turns over along with the U-shaped frame, and the flange at the bottom of the square billet turns over to the upper part;

3) placing the turned square billet on a rack, and moving the square billet to a roller way by using a moving trolley;

4) and starting the motor, and rotating the steel wire brush to clean the flash.

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