KR20050015312A - Apparatus for de-burring slab - Google Patents

Abstract

PURPOSE: To provide an apparatus capable of de-burring slab easily and effectively irrespective of cutting surface shape of slab, steel type of slab or burr shape of slab by a burr cutter having continuously connected bits. CONSTITUTION: An apparatus(100) for de-burring slab comprises slab transfer rolls(104) extended in a width direction of a slab(2) from which burr(4a) is removed; a burr cutter(110) which is extended in a width direction of the slab, in which continuous bits connected to each other are installed at the slab side, and which is movable up and down; pinch rolls(140a,140b) disposed at one side oppositely to the burr cutter centering around the slab and movable up and down to press the slab on the burr cutter; and a hydraulic feeder(150) providing the burr cutter and the pinch rolls with hydraulic pressure for up down movements, wherein the burr cutter comprise a hydraulic cylinder for up down movements, and the pinch rolls comprise hydraulic cylinders for up down movements, wherein the hydraulic feeder comprises valve-regulator assemblies(160) for regulating hydraulic pressure supplied into the hydraulic cylinder of the burr cutter, and wherein the apparatus comprises position sensors(108a,108b) for sensing up and down positions of the burr cutter and the pinch rolls.

Description

Cutting device for cutting slab of slab {APPARATUS FOR DE-BURRING SLAB}

The present invention relates to an apparatus for removing the cutting tongue of the slab, and more specifically, the cutting tongue cutter is easy to cut the cutting tongue irrespective of the shape of the cutting surface of the slab or the steel grade or cutting tongue shape of the slab by having a continuous bit. The present invention relates to a slab cutting snow removing device that can remove the material effectively.

The steel is cut into slabs of the appropriate length using a gas torch or shear, leaving cuts at the cut.

Conventionally, in order to remove the cutting snow remaining in the cutting site, the operator has to face the surface of the slab to which the cutting snow is attached upwards and removed by hitting with a chisel or a raised iron bar. However, there is a problem in that excessive manpower is input to remove the cutting snow of the slab by hand, thereby reducing productivity and work efficiency.

Therefore, the cutting snow of the slab is removed using the cutting snow removal device of the prior art as shown in FIG. Referring to FIG. 1, when the slab 2 is transported by the roll 6 and the first light barrier 8 detects it, the roll 6 transports the slab 2 in the slow mode. Subsequently, when the second light barrier 10 detects the slab 2, the driving of the roll 6 is stopped to stop the slab 2. Then, air is supplied to the air line 12 so that the bellows cylinder 14 expands to raise the cutting snow removing device 16. The bellows cylinder 14 has the position sensor 20 having the cutting snow removing device 16. ) And the cutting snow removing device 16 is raised until a close contact between the bottom surface of the slab and the slab 2 is detected. Subsequently, the roll 6 is rotated in the reverse direction to convey the slab 2 in the stopped state in the reverse direction, and the cutting tongue 4 on the cutting surface of the slab 2 is used by the cutter 18 of the cutting tongue removing device 16. To cut.

The cutting snow removing device of the prior art has the following problems.

Since the cutter of the conventional lower cutting snow removing device has a gap, when the cutting surface of the slab is generated, the cutting snow on the step surface cannot be removed. In addition, when the slab is a medium carbon steel, the cutting tongue in close contact with the cutter of the cutting tongue removing device is removed, but the cutting tongue located in the gap between the cutters is not removed.

On the other hand, when the slab is a high carbon steel cut snow is formed small and thin. In this case, the slab is raised from the roll while the cutter of the cutting tongue removing device slides along the shape of the cutting tongue even when the slab is conveyed backward in the state where the cutter of the cutting tongue removing device is in close contact with the slab when the cutting tongue is removed. As a result, there is a gap between the slab and the roll and the cutter cannot remove the cutting edge.

Accordingly, the present invention has been made to solve the above-described problems of the prior art, the object of the present invention is that the cutting tongue cutter has a bit continuously connected, regardless of the cutting surface shape of the slab or the steel type or cutting tongue shape of the slab. It is to provide a slab cutting snow removing device that can easily and effectively remove the cutting snow.

According to a feature of the present invention for achieving the above object of the present invention, there is provided a slab cutting snow removing apparatus for removing the cutting snow generated on the cutting surface of the slab. The cutting snow removing device is a slab feed roll extending in the width direction of the slab to remove the cutting snow; A vertically movable cutting cutter having a bit extending in the width direction of the slab and continuously connected to the slab; A pinch roll which is disposed on one side of the slab opposite to the slab and vertically movable to press the slab to the cutter; And a hydraulic feeder providing hydraulic pressure for vertical movement to the cutting tongue cutter and the pinch roll.

Various features and advantages of the present invention will be described in detail as follows in connection with the accompanying drawings.

Figure 2 is a perspective view of the cutting snow removing device according to a preferred embodiment of the present invention, some of the supporting member is omitted for convenience. Referring to Figure 2, the cutting tongue removing apparatus according to the present invention is a frame 102 forming a frame-like support structure, a plurality of slabs supported in the frame and extending in the width direction of the slab (2) to remove the cutting tongue A cutting roll cutter 110 having a feed roll 104, a width extending in the width direction of the slab 2, and a bit continuously connected to the slab side, and the cutting tongue cutter 120 around the slab 2; A pair of pinch rolls 140 are disposed on opposite sides of the slab 2 and are movable up and down to compress the slab 2 to the cutting tongue cutter 110.

In addition, the cutting snow removing device of the present invention provides the air necessary for the operation of the first and second light barriers (106a, 106b), the position sensors (108a, 108b) and various components for detecting the transport position of the slab (2). Hydraulic feeder 150 for supplying is provided.

FIG. 3 is a perspective view of the cutting cutter 110 shown in FIG. 2, and FIG. 4 is an exploded perspective view of the cutter housing and the bit of FIG. 3. 3 and 4, cutting tongue cutter 110 is a cylindrical cutter housing 112 extending in the width direction of the slab, a pair of continuous bits 120 mounted on top of the cutter housing 112, A housing link 126 mounted at both ends of the housing 112, a cylinder 130 mounted on the frame 102 to move the housing 112 up and down, and the cylinder 130 being moved to the housing link 126. ) And a cylinder link 128 for coupling.

The housing 112 has a cylindrical body 114 having a groove 116 on which a bit 120 is mounted, and a link mounting portion 118 having a reduced diameter so that the housing link 126 is mounted on both sides of the cylindrical body 114. ). The bit 120 is intended to collide with the cutting tongue 4 of the slab 2 and to remove it. The bit 120 is generally formed in a V shape, and the tip 122 and the housing groove 116 that collide with the cutting tongue 4. Has a recessed and flat mounting portion 124 for bolting to. The tip 122 may be configured to have a predetermined angle with the longitudinal section of the slab to disperse the force exerted during the cutting operation. On the other hand, the cylinder 130 is supplied with the necessary air from the above-described hydraulic feeder 150 through the hydraulic line (158b).

5 is an enlarged perspective view of the pinch roll 140 shown in FIG. 2. Referring to FIG. 5, each pinch roll 140 moves a cylindrical body 142, a pair of bearing blocks 144 attached to both ends of the body 142, and the pinch roll 140 up and down. And a pair of cylinders 148 mounted to the frame 102 and a pair of links 146 connecting each cylinder 148 to each bearing block 144. The cylinder 148 receives the necessary air from the hydraulic feeder 150 described above via the hydraulic line 158a or 158c.

Meanwhile, referring to FIG. 2 again, the hydraulic feeder 150 for supplying air or fluid to the cylinder will be described. The hydraulic feeder 150 is connected to a main line 152 for transferring air from a hydraulic source (not shown), branch lines 154a, 154b, and 154c branched from the main line, and branch lines 154a, 154b, and 154c. Air from each of the connected first, second and third valve assemblies 156a, 156b, 156c and the first, second and third valve assemblies 156a, 156b, 156c to each cylinder 148a, 130, 148b. A first pinch roll air line 158a, a cutter air line 158b, and a second pinch roll air line 158c connected to supply. Here, each valve assembly 156a, 156b, 156c consists of a filter, an oiler and a regulator.

A flow rate controller 162 is provided between the cylinder side air lines 158a and 158c and the pinch roll cylinder 148. The flow controller 162 is for adjusting the rising and falling speed of the cylinder 148. In addition, three pairs of valve-regulator assemblies 160 are provided between the second valve assembly 156b and the second cylinder-side air line 158b. Each valve-regulator assembly 160 is for adjusting the pressure of the air supplied to the cutting cutter 110 according to the carbon content of the slab 2. In the case of the ultra low carbon steel or the low carbon steel, the first assembly is opened. The medium carbon steel is operated in such a way that the second assembly is opened and the high carbon steel is opened in the third assembly.

On the other hand, although the hydraulic feeder 160 described above supplies air, and the cylinders 140 and 130 are illustrated as being air cylinders, the hydraulic feeder can supply all kinds of fluids suitable for applying hydraulic pressure, and the cylinder is also Cylinders driven by such a fluid can be used.

Hereinafter, the operation of the slab cutting snow removal apparatus according to the present invention will be described with reference to FIG.

First, referring to FIG. 2 together with FIG. 7, the removal operation of the cutting edge 4a on the right end of the slab 2, that is, in the drawing, will be described. When the slab 2 conveyed by the conveying roll 104 is detected by the first light barrier 106a, the conveying roll 104 is decelerated from the speed mode to the slow mode to convey the slab 2. Then, when the second light barrier 106b detects the slab 2, the feed roll 104 stops driving to stop the slab 2. Subsequently, air is supplied to the air line 158a of the first pinch roll 140a to descend to the position where the first pinch roll 140a is detected by the lower position sensor 108.

Then, air is also supplied to the air line 158b of the cutting tongue cutter 110 so that the cylinder 130 of the cutting tongue cutter 110 is raised to be in close contact with the bottom surface of the slab 2. At this time, when the feed roll 104 is reversely rotated and the slab 2 moves backward in the direction of the arrow A, the first pinch roll 140a is also driven in the direction of the arrow B while the bit of the cutting cutter 110 120 removes the cutting tongue 4a at the tip of the slab 2. When the cutting tongue 4a is removed, the first pinch roll 140a rises to a position detected by the upper position sensor 108b.

Next, the removal operation | movement of the cutting edge 4b of the left end of the slab 2, ie, in the figure, is demonstrated with reference to FIG. 6 with FIG.

When the slab 2 conveyed by the conveying roll 104 is detected by the first light barrier 106a, the conveying roll 104 is decelerated from the speed mode to the slow mode to convey the slab 2. Subsequently, when it is determined that the predetermined time has elapsed by the timer, air is supplied to the air line 158c of the second pinch roll 140b so that the first pinch roll 140b is detected by the lower position sensor 108. Descend to position.

Then, air is also supplied to the air line 158b of the cutting tongue cutter 110 so that the cylinder 130 of the cutting tongue cutter 110 is raised to be in close contact with the bottom surface of the slab 2. At this time, when the feed roll 104 is rotated forward in the slow mode and the slab 2 proceeds in the direction of the arrow (C), the second pinch roll 140b is also driven in the direction of the arrow (D) while The bit 120 removes the cutting tongue 4b at the rear end of the slab 2. Subsequently, when the second light barrier 106b is released, the second pinch roll 140b rises to a position detected by the upper position sensor 108b.

As such, the first and second pinch rolls 140a and 140b may be mounted on the upper position sensor 108b in order to prevent collision between the slab 2 and the surrounding equipment during the movement of the slab 2 and the damage of the equipment. The interlock is set to wait at the position and the cutting cutter 110 waits at the position of the lower position sensor 108a.

On the other hand, during this operation, the three pairs of valve-regulator assembly 160 described above is to adjust the pressure of the air supplied to the cutting device 100 of the present invention according to the steel type of the slab.

The slab cutting tongue removing device according to the preferred embodiment of the present invention as described above is easy to cut the cutting tongue irrespective of the cutting surface shape of the slab or the steel grade or cutting tongue shape of the slab by having the cutting tongue cutter continuously connected bit. Can be effectively removed.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art may vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be appreciated that modifications and variations can be made.

1 is a perspective view of a cutting snow removing device of the prior art.

Figure 2 is a perspective view of the cutting snow removing apparatus according to the present invention.

3 is an enlarged perspective view of the cutting snow cutter shown in FIG.

4 is an exploded perspective view of the cutter housing and the bit of FIG. 3;

FIG. 5 is an enlarged perspective view of the pinch roll shown in FIG. 2. FIG.

6 is a perspective view showing a reverse operation of the cutting snow removing device of FIG.

7 is a conceptual diagram illustrating the operation of FIG. 2.

8 is a conceptual diagram illustrating the operation of FIG. 6.

<Explanation of symbols of main parts in drawings>

2: slab 4: cutting

100: cutting snow removing device 104: feed roll

106: light barrier 108: position sensor

110: cutting cutter 120: bit

130, 148: Cylinder 140: Pinch Roll

150: hydraulic feeder

Claims (4)

A slab feed roll extending in the width direction of the slab from which the cutting snow is to be removed; A vertically movable cutting cutter having a bit extending in the width direction of the slab and continuously connected to the slab; A pinch roll which is disposed on one side of the slab opposite to the slab and vertically movable to press the slab to the cutter; And Slab cutting tongue removing device characterized in that it comprises a hydraulic feeder for providing a hydraulic pressure for vertical movement to the cutting tongue cutter and the pinch roll. The slab cutting tongue removing device according to claim 1, wherein the cutting tongue cutter comprises a hydraulic cylinder for vertical movement, and the pinch roll includes a hydraulic cylinder for vertical movement. 2. The slab cutting device of claim 1, wherein the hydraulic feeder includes a valve-regulator assembly for adjusting the hydraulic pressure supplied to the hydraulic cylinder of the cutting tool. The slab cutting tongue removing device according to claim 1, further comprising a position sensor for sensing the vertical position of the cutting tongue cutter and the pinch roll.