KR20020043268A - Slab extractor for heating furnace - Google Patents

Abstract

PURPOSE: A slab extractor for a heating furnace is provided to promptly and safely extract a slab by supporting upper and lower surfaces of the slab of the heating furnace, thereby preventing falling of the slab. CONSTITUTION: In a slab extractor for a heating furnace equipped with a body mounted onto a moving transfer car by means of a plurality of cylinders, and legs fixed onto the lower front of the body, the slab extractor for the heating furnace comprises a support(36) on which a groove having a certain length(37) is vertically formed, and which is mounted on the body; a support body which is equipped with a support shaft(27) inserted into the groove(37) of the support(36), and the lower part of both ends of which receives elastic force upward by an elastic member(28); cams(31,32) which are arranged at the lower part of both ends of the support body and rotationally driven by a driving motor; and tongs(14) which are mounted onto the front of the support body and arranged on the upper part of the legs.

Description

Slab extractor for heating furnace

The present invention relates to a slab extraction apparatus of a heating furnace, and more particularly, it is provided at the exit side of the heating furnace to support the slab on the upper and lower surfaces to prevent the slab from falling and thereby to extract the slab more quickly and safely. It relates to a slab extraction device of a heating furnace.

In general, the slab is heated to a predetermined temperature in the heating furnace, is extracted by the slab extraction device provided on the exit side of the heating furnace and transferred to the roller table as a post-processing facility.

In more detail, when the slab is charged into a heating furnace to heat the slab, the slab is picked up with an unmanned crane and placed on top of the roller table in front of the heating furnace, and the slab moves forward while the roller table is driven. After reaching the furnace inlet, the slabs are adjusted and the slabs are charged into the furnace using a pusher. Then, the slabs are heated to a predetermined temperature in the furnace and then extracted from the furnace by the extraction device.

FIG. 1 is a configuration diagram schematically showing a state in which the slab 3 is extracted from the heating furnace 2 using a conventional extraction apparatus 1, and the rail 4 provided at a predetermined position at the exit side of the heating furnace 2. At the lower end of one side of the body (7) and the body (7) mounted via a plurality of cylinders (6a, 6b) in the lower portion of the cart (5) installed to run along the It consists of the legs 8 provided in the shape of a fork.

However, such a conventional extraction device 1 does not have a means for fixing the slab 3 mounted on the leg 8 so that the slab 3 moves toward the roller table when the slab 3 is not properly placed on the leg 8. On the way, the slab 3 had a problem of falling out of the leg 8 and falling down.

In addition, when the slab 3 does not sway or slide on the leg 8 and is not placed on a proper position on the roller table 9, the slab 3 collides with the side guide 9a or the like installed on a predetermined path of the roller table 9. It was to cause problems such as equipment damage and slab quality deterioration.

The present invention has been made in order to solve such a conventional problem, the object is to support the slab of the heating furnace in the upper and lower surfaces to prevent the slab fall to be able to perform the extraction of the slab more quickly and safely It is to provide a slab extraction device of the furnace.

1 is a schematic view showing a state of extracting slabs from a heating furnace using a conventional extraction apparatus;

2 is a drawing of a problem with a conventional extraction apparatus;

3 is a perspective view schematically showing the extraction apparatus according to the present invention;

4 is a partially cutaway perspective view showing details of the main part of the present invention;

FIG. 5 is an external perspective view showing some components in FIG. 4; FIG. to be.

※ Explanation of symbols about main part of drawing ※

10 body 12 leg

14: clamp 14a, 20a: scale

16: header 18a, 18b: idle roll

20: stopper 21: screw shaft

22: drive motor 24: gear

26: support body 27: support shaft

28: elastic member 31, 32: cam

33, 34: connecting shaft 35, 36: support

37: home

As a technical configuration for achieving the above object, the present invention, the apparatus for extracting the slab of the heating furnace having a body mounted via a plurality of cylinders in the moving bogie, and a leg fixed to the lower end of the body In the support body having a groove formed in a predetermined length in the vertical direction, the support body mounted on the body, the support body is fitted to the groove of the support and both ends of the support body receiving the elastic force to the upper by the elastic member, the support body Cams are disposed at both ends of the lower end of the cam driven by the drive motor, and the slab extraction apparatus of the heating furnace characterized in that it comprises a forceps mounted on the top of the support body disposed on the upper end of the leg. .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view schematically showing a slab extraction apparatus of a heating furnace according to the present invention, which has a body 10 corresponding to the body 7 shown in FIG. Similarly, it is connected to the trolley | bogie 5 via the cylinders 6a and 6b.

A pair of legs 12 are fixed to the lower end of the front side of the body 10, and the legs 12 extend horizontally by a predetermined length.

Another pair of tongs 14 is installed at the upper portion of the leg 12, the tongs 14 are horizontally extended a predetermined length, the header 16 is mounted to the lower end of the tongs 14, A plurality of idle rolls 18a are provided in the lower part of the header 16.

In addition, a plurality of idle rolls 18b are provided at the upper portions of the legs 12.

As shown in more detail in FIG. 4, the tongs 14 continuously form a groove 15 opened downward in the longitudinal direction, and the stopper 20 is slidably fitted into the groove 15. The stopper 20 is fitted to the screw shaft 22 to be configured to be movable along the groove 15 by the rotation of the screw shaft 21, the screw shaft 21 is driven by the drive motor 22 It is rotating.

In addition, by forming scales 20a and 14a on one surface of the stopper 20 and one surface of the tongs 14, respectively, the position of the stopper 20 with respect to the tongs 14 can be confirmed from the outside. do.

A thread 14b is formed on the lower surface of the tongs 14, and has a gear 24 engaged with the thread 14b, the gear 24 being driven by a driving motor, not shown. The drive motor is fixed at a predetermined position of the body 10, and likewise, the gear 24 is also mounted to be rotatable at a predetermined position of the body 10.

In addition, the tongs 14 are slidably mounted to the support body 26, and the support body 26 is fixed to the support body 26 by an elastic member 28 provided below the support body 26. Keep it in position.

On the upper end of the support body 26, cams 30 and 31 are disposed on the front and rear sides, respectively, as shown in more detail in FIG. 5, and the front cam 30 of one side support body 26 and The rear cam 30 of the other supporting body 26 and the rear cam 31 of the one supporting body 26 and the rear cam 31 of the other supporting body 26 are coupled shafts 33 and 34. Are integrally connected to each other, and the connecting shafts 33 and 34 are rotatably supported by the supports 35 fixed to the inside of the body 10, respectively.

The connecting shafts 33 and 34 are rotated by a driving motor, not shown.

In addition, the support shaft 27 is integrally formed on both sides of the central portion of the support body 26, and the support shaft 27 is fitted into the groove 37 of the support 36 fixed to the inside of the body 10. The groove 37 is a long slit groove in the vertical direction.

In addition, on one side of the support 36, the limit switches 38a and 38b are mounted at positions spaced apart by a predetermined distance in the vertical direction, and the strikers 39a and 39b capable of operating the limit switches 38a and 38b. ) Is mounted on one side of the support body (26). Of course, such limit switches 38a and 38b may be used for limiting the upper and lower limits of measuring how much the support body 26 is inclined with respect to the support 36.

The operation of the present invention having the above configuration will be described.

First, the position of the stopper 20 is appropriately set. The position of the stopper 20 is set so as to correspond to the information on the width of the slab obtained through the facility control computer or other path. When driving 22, the screw shaft 21 connected thereto rotates, and the stopper 20 slides along the groove 15 of the tongs 14 by the rotation of the screw shaft 21, wherein the stopper The stopper 20 can be moved to a predetermined position by the scale 20a formed in the 20 and the scale 14a formed in the tongs 14.

Thus, after adjusting the position of the stopper 20 properly, the body 10 of the present invention is moved toward the slab by the bogie to extract the slab of the heating furnace.

Then, the leg 12 enters the lower part of the slab by the movement of the body 10, and when the proper degree is entered, the front end of the leg 12 using the cylinders 6a and 6b shown in FIG. The slab mounted on the leg 12 is thereby slid toward the rear of the leg 12 by the idle roll 18b of the leg 12.

Slip of the leg 12 is stopped by the stopper 20 installed in the tongs 14, in this state by rotating the connecting shaft 33 by driving the drive motor not shown, the connection of the connecting shaft 33 It rotates to the cams 31 and 32 by rotation, and the support body 26 rotates so that the front-end | tip may descend about the support shaft 27 by rotation of the said cams 31 and 32. As shown in FIG.

This causes the tongs 14 mounted on the support body 26 to rotate so that the header 16 is lowered, so that the header 16 of the tongs 14 is in close contact with the upper surface of the slab with a predetermined force. .

Of course, the tongs 14 are in a state where the predetermined length is advanced by the gear 24 that is rotated by the driving motor (not shown).

Therefore, the slab is held in the proper position by the stopper 20 and is held in place by being fixed by the tongs 14.

Subsequently, the body 10 is continuously moved to move the slab to the upper side of the heating roller exiting roller table, and the slab is placed on the upper portion of the roller table in the reverse order to the above, and then the operation is returned to the initial state and the next work is performed. Wait for

According to the slab extraction apparatus of the heating furnace according to the present invention as described above, by supporting the lower part of the slab by the legs and the upper part of the slab by the forceps to prevent the accident that the slab is falling off the leg and falling down in advance. Has an effect.

In addition, by maintaining the slab at a predetermined position of the leg to move to the heating furnace exit roller table to have the slab placed on the roller table of the proper position has the effect of solving the problem of colliding with the post-process equipment.

Claims (3)

In the apparatus for extracting the slab of the heating furnace having a body mounted via a plurality of cylinders to the moving bogie, and a leg fixed to the lower end of the body, A groove 37 having a predetermined length in a vertical direction and having a support 36 mounted to the body 10, and a support shaft 27 fitted to the groove 37 of the support 36. The support body 26 is provided with an elastic force to the upper by the elastic member 28, the cams 31 and 32 are disposed at both ends of the support body 26 and rotated by a drive motor, and the support body Slab extraction device of the furnace characterized in that it comprises a tongs (14) mounted on the tip of the (26) disposed on the upper portion of the leg (12). The tongs 14 are slidably mounted to the support body 26 in a longitudinal direction, and the tongs 14 form a thread 14b in the longitudinal direction, and the thread 14b. The slab extraction device of the heating furnace, characterized in that the gear (24) engaged in the rotation is driven by the drive motor. According to claim 1, wherein the tongs (14) are formed in the longitudinal direction of the groove (15) continuous and open in the bottom, and the stopper 20 is inserted into the groove 15 so as to be slidable so that the lower end of the tongs ( 14 extends a predetermined length to the lower portion, the screw shaft 21 arranged in the longitudinal direction of the forceps 14 is coupled to the stopper 20, the screw shaft 21 is driven by the drive motor 22 Slab extraction apparatus of the heating furnace, characterized in that the rotary drive, and to form a scale (14a, 20a) on the outer surface of the forceps (14) and the stopper (20).