KR20030008335A - Device of cutting off for a top bad part of hot coil - Google Patents

Abstract

PURPOSE: A device for removing defects of the front end part of a thin hot coil is provided to prevent product flaws and reduce incidental costs by enabling cutting operation of the defects even in the state that the hot coil is coiled. CONSTITUTION: The device for removing defects of the front end part of a thin hot coil comprises a winder part(10) which is fixed through an upper cover(13) and a lower ring(14) to form an external appearance in the state that idle rolls(11) are continuously connected to winder plates(12), and in which a tip part(16) for guiding defects to any one of the winder plates(12) by coating ceramic(15) on the inner wall of any one of the winder plates(12); a holder part(20) on one surface of which a receiving groove(21) is vertically formed in the state that the holder part(20) is fixed into the winder part(10), on the circumferential surface of which cooling water discharge holes(22) are formed, and in which a torch holder(25) equipped with a pair of pinch rolls(24,24') is mounted in the receiving groove(21) through a plurality of elastic members(23); a cutting part(30) which is ascended or descended along a rail(32) during rotation of a motor(31) in the state that the cutting part(30) is built in a receiving space(26) of the holder part(20), and on the front side of which a torch part(33) is mounted to belch out flame to the defects; and an operating part for inserting in or pulling out the winder part(10) from an inner coiling part of a coiled coil by operating a cylinder connected to a motor mounted on the upper cover(13) through a connection member.

Description

Device for eliminating bad parts of thin hot rolled coils {Device of cutting off for a top bad part of hot coil}

The present invention relates to a cutting device for cutting the defective portion formed on the tip of the hot-rolled coil, in particular to prevent the product defects by cutting the defective portion even when the hot rolled coil is wound, as well as to reduce the expense It relates to a device for removing the defective portion of the tip end of the hot-rolled hot rolled coil.

In general, the rolled material heat-treated in the furnace is subjected to a multi-stage rolling process and a transfer process from the rolled to a coil thickness in the state of being rolled to a certain thickness through the hot rolling process, the rolling material is rolled In the course of the process or the transfer process will cause a defect in the shape.

In particular, the rolled material, when the tip portion interferes with peripheral devices such as a roller table or side guide in the rolling process, the edge is broken, and when flying due to the running speed in the course of the roller table, it is overlapped in the winding process. The phenomenon of winding frequently occurs.

However, as shown in FIG. 1, when the defective part 110 is caught in a state where the defective part 110 is formed at the tip of the GUNCH coil 100 seated on the conveyor 120, a defect in the appearance of the product is generated. The so-called loosening and cutting process is necessary to remove the defective parts of the rolled material through the correction process.

However, when the defective part is removed through the correction process, the labor cost increases due to the addition of the process, which increases the cost. In particular, when the coiling coil 100 is unwound again, a collision and scratches occur with the peripheral device. To cause a defect there was a problem that lowers the quality of the product.

Accordingly, the present invention has been made in order to solve the problems described above, the defective portion of the hot-rolled coil to be able to cut the defective portion of the hot rolled coil even in the wound state to reduce the labor and additional costs The purpose is to remove the secondary removal device.

The present invention for achieving the object of the above, while the idle roll and the winder plate is connected in a continuous state through the top cover and the lower ring to achieve the appearance, the ceramic coating on the inner wall of any one of the winder plate At the same time, the winder portion formed with a tip portion for inducing a defective portion in one of the winder plate; A torch having a pair of pinch rolls formed through a plurality of elastic members in the receiving groove is formed in the receiving groove is formed in the winder in the vertical direction and the cooling water discharge hole is formed in the peripheral surface. A holder unit on which a holder is mounted; A cutting part equipped with a torch part which ascends along the rail in the process of rotating the motor in a state of being embedded in the accommodating space of the holder part and ejects the flame toward the ceramic at its front side; It is composed of an operation part for inserting / drawing the winder part into the inner winding part of the winding coil by operating a cylinder connected to the motor mounted on the upper cover through a connecting member.

1 is a view showing a state in which a hot rolled coil according to the prior art is wound;

2 is a view showing the entire defective portion cutting device according to the invention,

3 is an exploded perspective view showing a defective part removing apparatus according to the present invention;

Figure 4 is a plan sectional view showing a defect removal device of the tip end portion of the hot-rolled coil according to the present invention.

Explanation of symbols on the main parts of the drawings

100: winding coil 110: defective part

10: winder portion 16: tip portion

20: holder portion 23: elastic member

25: torch holder 30: cutting unit

31: motor 33: torch

40: operating part 43: cylinder

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a view schematically illustrating a process of removing the defective part of the hot rolled coil tip of the hot rolled coil according to the present invention, and FIG. Figure 4 (a), (b) is a plan view and a side view showing the defective portion removal device of the hot rolled coil tip portion according to the present invention, rolled in a thin plate shape through a hot rolling process is wound in a coil form through a winding process conveyor In constructing a defective part cutting device for removing the defective part 110 of the Gingch coil 100 seated on the 120, the upper cover in the state that the idle roll 11 and the winder plate 12 are continuously connected Fixed through the 13 and the lower ring 14 to form an appearance, while the ceramic 15 is coated on the inner wall of any one of the winder plate 12, a defective portion ( Wah formed with a tip section 16 for inducing 110. Deobu 10 and; In the state fixed in the winder 10, the receiving groove 21 is formed on one side in the vertical direction and the cooling water discharge hole 22 is formed on the circumferential surface, a plurality of elastic members in the receiving groove 21 A holder portion 20 on which a torch holder 25 having a pair of pinch rolls 24 and 24 'is mounted through a 23; Sowing along the rails 32 during the rotation of the motor 31 in the state of being embedded in the receiving space 26 of the holder portion 20 as well as ejecting the flame toward the ceramic 15 on the front side thereof. A cutting portion 30 to which the teeth 33 are mounted; Operates the cylinder 43 connected to the motor 41 mounted on the upper cover 13 via the connecting member 42 to insert / draw the winder unit 10 into the inner winding of the winding coil 100. It is characterized by consisting of a portion (40).

First, among the components according to the present invention, the defective part 110 of the coiling coil 100 and the winding coil is seated and the conveyor 120 is weighed through the weighing machine 140 because the functional features are the same as in the prior art. The description will be omitted, but the difference is included in that the cutting device 1 of the present application is mounted on the side of the conveyor 120.

The winder 10 is a cylindrical enclosure inserted into the inner winding portion of the winding coil 100, and is formed on the upper and lower sides of the rod-shaped idle roll 11 and the plate-shaped winder plate 12 continuously connected. It is fixed through the upper cover 13 and the lower ring 14 to form a cylindrical appearance.

In addition, the ceramic 15 is coated on the inner wall of any one of the winder plate 12 in the winder unit 10 at a position corresponding to the torch unit 33 to be described later, and any one of the winder plate 12 may be used. A tip portion 16 is formed at the tip of the guide portion guiding the defective portion 110 to be described later.

Of course, the lower ring 14 is preferably formed of a high-elastic material in which cutouts are formed where the tip portion 16 is located, and the tip portion 16 constitutes a defective portion 110 forming the tip of the winding coil 100. It is preferable to protrude at an angle of approximately 15 ° toward the outward direction so that) is smoothly guided to the inner wall of the winder unit 10.

In addition, the holder part 20 is a cylindrical body having a substantially "c" shape fixed in the inner space of the winder part 10, and the receiving groove 21 in which the torch holder 25 is built up in one side thereof. ) Is formed. In addition, while the cooling water supply hole 27 is formed in the upper surface of the body of the holder 20, the cooling water discharge hole 22 is formed in the circumferential surface thereof.

Of course, the cooling water supply hole 27 and the cooling water discharge hole 22 of the holder portion 20 is the temperature of the winding coil 100 (normally 600 ~) in the process in which the winder 10 is magnetic through an electromagnetic field. It is a means for preventing the loss of magnetic force by 700 ℃), it is mounted as the injection means of the cooling water.

In addition, the torch holder 25 is formed in the receiving groove 21 of the holder portion 20 to form the receiving space 26 in the vertical direction through the plurality of elastic members 23, both sides of the front of the torch holder 25 A pair of pinch rolls 24, 24 ′ in contact with the defective part 110 guided through the tip part 16 of the winder part 10 is mounted on the pin.

In addition, the cutting part 30 is a lifting member which is built in the receiving space 26 of the holder part 20 and repeats lifting, and the operation process of the motor 31 fixed to the upper surface of the holder part 20. In the ascending and descending along the rail 32, the torch portion 33 for ejecting a flame toward the ceramic 15 is mounted on the front side of the body.

Of course, the torch unit 33 of the cutting unit 30 is supplied with a heat source through a gas tank (not shown) to eject the flame, in particular in the movement path of the torch unit 33, that is, the upper and lower sides of the rail 32 It is preferable to mount an upper and lower limit switches (not shown).

And the operation part 40 is an apparatus which inserts / draws the cutting device 1 toward the inner peripheral part of the guiding coil 100, The cylinder 43 attached to the side part of the conveyor 120, and this cylinder ( It is composed of a connecting member 42 connected to the rod of 43, and a motor 41 connected to the connecting member 42 to rotate the upper cover (13).

Hereinafter, the operation according to the present invention will be described in detail.

First, when the defective part 110 is generated as a result of checking the distal end of the winding coil 100 stopped at a designated position on the conveyor 120 with the naked eye or a CCD camera, the operator operates the cylinder 43 through a control device. The process of inserting the cutting device 1 toward the inner winding portion of the winding coil 100 should be made in advance.

Then, the cutting amount (1/4, 1/2, 3/4, 1 wheel) of the defective portion 110 set in the control device is selected, and then the cutting device 1 is rotated through the motor 41. Then, the defective portion 110 of the coiling coil 100 is guided to the tip portion 16 and is fixed through the elastic member 23 in the state inserted between the idle roll 11 and the pinch rolls 24 and 24 '. .

Subsequently, when the motor 31 of the cutting unit 30 is operated through the control device, the torch unit 33 descends along the rail 32 for a time set in a timer (not shown), and thus the winding coil 100 may The defective part 110 will be cut.

At this time, the torch portion 33 of the cutting unit 30 is naturally lowered or raised amount is controlled by the upper and lower limit switches (not shown). In addition, the flame sprayed on the torch part 33 is to prevent heat transfer by the ceramic 15 coated on the inner wall of the winder part 10.

Subsequently, in the state where the defective part 110 removed by the cutting device 1 is attached by the magnetic force of the winder part 10, it is withdrawn from the inner winding part of the winding coil 100 during the operation of the cylinder 43. It is transferred to a scrap box (not shown) and removed.

Of course, since the winder unit 10 is continuously cooled by the coolant injected through the coolant discharge hole 22, the magnetic force loss due to the heat generated by the winding coil 100 or the torch unit 33 is prevented. do.

Thereafter, the winding coil 100 from which the defective part 110 is removed is weighed by the weighing machine 140 provided on the conveyor 120 and then transferred to a storage place through an inspection process and a binding process. .

As described above, according to the apparatus for removing the defective portion of the tip portion of the hot-rolled coil according to the present invention, since the cutting operation of the defective portion formed in the tip portion of the winding coil can be performed even in a wound state, a correction process for unwinding and winding the winding coil in its original state is performed. This not only shortens the labor but also reduces the overall costs, and also blocks the surface defects generated during the correction process of the GUNZU coil so that the quality of the product is kept constant, which improves the price competitiveness. will be.

Claims (1)

In constructing a defective part cutting device for removing the defective part 110 of the GUNCH coil 100 which is rolled into a thin plate shape through a hot rolling process and wound in a coil form through a winding process, In the state in which the idle roll 11 and the winder plate 12 are connected in series, the upper roll 13 and the lower ring 14 are fixed to form an exterior, and ceramics are formed on the inner wall of any one of the winder plate 12. While the coating unit 15 is coated, the winder unit 10 includes a tip unit 16 on which one of the winder plates 12 guides the defective unit 110. In the state fixed in the winder 10, the receiving groove 21 is formed on one side in the vertical direction and the cooling water discharge hole 22 is formed on the circumferential surface, a plurality of elastic members in the receiving groove 21 A holder portion 20 on which a torch holder 25 having a pair of pinch rolls 24 and 24 'is mounted through a 23; In the state of being embedded in the receiving space (26) of the holder portion 20 in the rotating process of the motor 31, as well as to lift along the rail 32 to eject the flame toward the defective portion 110 on the front side thereof. A cutting unit 30 on which the torch unit 33 is mounted; Operates the cylinder 43 connected to the motor 41 mounted on the upper cover 13 via the connecting member 42 to insert / draw the winder unit 10 into the inner winding of the winding coil 100. Apparatus for removing the defective portion of the tip end of the hot-rolled coil, characterized in that consisting of a portion (40).