KR100690055B1 - Automatic apparatus for transferring and cooling of billets - Google Patents

Abstract

An apparatus for automatically cooling and transferring billets is provided to enable flaws to be detected early by automatically performing a process of promptly cooling produced billets and improve productivity by promptly injecting the cooled billets into a wire rod-heating furnace and allowing a wire rod to be produced continuously and automatically from a wire rod production process to a subsequent process without controlling a product production flow. An apparatus for automatically cooling and transferring billets comprises: a cooling tank(10) into which heated billets(5) laterally oriented are injected from a front side, which has a transfer space transferred perpendicularly to a length direction of the billets, and in which a cooling medium is contained; transfer rails(20) of which bottom surfaces(22) are gradually inclined downward as it goes from a front end to a rear end of the cooling tank, and which are located in an upper part of the cooling tank; transfer hooks(30) of which an upper end has rotatable wheel parts(32) contacted with bottom surfaces of the transfer rails, and of which a lower end enables the billets to be immersed into the cooling medium of the cooling tank when the wheel parts are transferred on the transfer rails; return rails(40) of which bottom surfaces(42) are gradually inclined downward as it goes from the rear end to a front end of the cooling tank, and which are located at a higher elevation than the transfer hooks in an upper part of the cooling tank; a front transfer part(50) for loading transfer hooks loaded with billets on a front part of the transfer rails in a billet loading part(55), and transferring empty transfer hooks returned to a rear part of the transfer rails by the return rails to the billet loading part; and a rear transfer part(60) for unloading the billet loaded transfer hooks transferred to a rear part of the transfer rails by the transfer rails in a billet unloading part(65), and loading empty transfer hooks from which billets are unloaded in the billet unloading part on a front part of the return rails.

Description

AUTOMATIC APPARATUS FOR TRANSFERRING AND COOLING OF BILLETS}

1 is a view showing an example for a conventional billet cooling apparatus.

Figure 2 is a schematic system schematic diagram illustrating the operation of one embodiment of the automatic cooling transfer device of the billet of the present invention.

Figure 3 is a schematic cross-sectional view of one embodiment of the automatic cooling transfer device of the billet of the present invention. (Partial cross section seen from the rear of the feeder.)

Explanation of symbols on the main parts of the drawings

5: billet 10: cooling tank

12: supply stage 14: discharge stage

16: drain line 20: transmission rail

22: bottom of transmission rail 30: transfer hook

32: wheel 40: return rail

42: bottom surface of the return rail 50: shear transfer unit

51: shear cylinder hydraulic cylinder

55: billet loading portion 60: rear end transfer portion

61: rear stage hydraulic cylinder

65 billet unloading part 70: ballet transfer cylinder

The present invention relates to an automatic cooling transfer device for billets, and more particularly, to allow the fast cooling process of the produced billet (BILLET) to be made automatically so that flaw detection can be made early, and then to be quickly introduced into the wire furnace. In addition, the present invention relates to an automatic cold transfer device for billets for improving productivity by enabling continuous and automatic production in a batch until the next process without interrupting the flow of product production in wire rod production.

The conventional method for manufacturing wire rod is to cool the billet produced by rolling the heated bloom in the steel piece heating furnace in the cooling zone, and the temperature after such cooling is about 450 ~ 380 ℃ In the subsequent process of the situation, it takes a long time of about two days with air cooling in order to cool below 50 ° C, which is a required temperature for flaw detection, and such cooling is mainly performed by storing a billet in a cradle as shown in FIG. Therefore, during such a cooling period, reheating and rolling are not possible for the billet's wire reincarnation, and thus, the wire rod is not intermittently made, but is intermittently made.

In addition, due to the delay of the process due to the natural air cooling as described above, there is a problem that can not meet the timely delivery of time, the development of a cooling device having a separate high cooling capacity that is automatically transferred to proceed to the continuous process is urgently required There is a situation.

In order to solve the problems of the prior art as described above, the present invention allows the fast cooling process of the produced billet (BILLET) is automatically made so that the flaw detection is possible early, after which the wire rod is quickly put into the furnace, the wire rod It is an object of the present invention to provide an automatic cooling feeder for billets that enables continuous and automatic production in a batch to the next process without interrupting the flow of product production in production to achieve productivity improvement.

In order to achieve the above object, the present invention

A cooling tank in which a heated billet is oriented horizontally, drawn in from a front end, immersed, and transported in a direction perpendicular to a length direction of the billet, and containing a cooling medium therein;

A transmission rail which is formed to be inclined downward toward the rear end of the cooling tank, and is located above the cooling tank;

 The upper end has a wheel portion rotatable in contact with the bottom of the rail of the transmission rail, the lower end of the hook portion in contact with the bottom surface of the rail of the transmission rail to be immersed in the cooling medium of the cooling tank when transported on the transmission rail Feed hook;

A return rail which is formed to be inclined downward toward a front end of the cooling tank, and is located at least higher than the height of the transfer hook on the upper portion of the cooling tank;

A shear transfer unit which loads the transfer hook loaded with the billet at the billet stacking unit at the front end of the transfer rail, and transfers the empty transfer hook returned to the rear end by the return rail at the billet stacking unit; And,

And a rear transfer unit for lowering the transfer hook loaded with the billet transferred to the rear end by the transfer rail and loading the empty transfer hook loaded with the billet at the front end of the return rail. It provides an automatic cooling transfer device for billets.

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

The present invention relates to an automatic cooling transfer device for billets, wherein the heated billets (5) are oriented horizontally, drawn from the front end, immersed, and transported in a direction perpendicular to the longitudinal direction of the billets (5). Cooling tank 10, the cooling tank 10, the rail bottom surface 22 is formed to be inclined downward toward the rear end of the cooling tank 10, the transmission rail 20 located above the cooling tank 10, An upper end has a wheel part 32 rotatable in contact with the rail bottom surface 22 of the transmission rail 20, and a lower end is transmitted by contacting the wheel part with the rail bottom surface 22 of the transmission rail 20. The hook-shaped feed hook 30 and the rail bottom surface 32, which are immersed in the cooling medium of the cooling tank at the time of transport on the rail 20, are inclined downward toward the front end of the cooling tank 10, At least the transfer hook 30 in the upper portion of the cooling tank (10) The conveying rail 40 and the conveying hook 30 in which the billet 5 is loaded in the billet stacking part 55 are placed higher than the height in front of the conveying rail 20, and the conveying rail 40 is placed on the conveying rail 40. The front conveying part 50 which conveys the empty conveyance hook 30 returned to the rear end by the said billet loading part 55, and the billet 5 transmitted to the rear end by the said transfer rail 20 are loaded. Lower transfer section for laying down the transfer hook 30 to the billet unloading portion 65, and loading the empty transfer hook 30, the billet (5) unloaded from the billet unloading portion 65 to the front end of the return rail (40) It consists of 60.

Specific embodiments of the automatic cooling transfer device of the billet of the present invention is as shown in Figs.

That is, Figure 2 is a system schematic for explaining the operation of the specific embodiment of the billet underwater transport cooling apparatus of the present invention is a high temperature after heating according to the process in order to solve the delay of the cooling time according to the air cooling In order to transfer the billet of cooling to the cooling medium, it is loaded on the transfer hook 30 so as to be cooled by automatic transfer by gravity according to the inclination angle of the transmission rail while being contained in the cooling medium in the cooling tank, and completes the transmission. One transfer hook is automatically brought back to its original position by gravity and has a cooling tank 10 for this purpose. The cooling tank is billet is drawn into the cooling medium, in particular water or oil, so that the cooling must be carried out continuously while being transferred to the heated billet (5) shown in FIG. This corresponds to a water tank or oil tank of sufficient size having a conveying space to be conveyed in a direction perpendicular to the longitudinal direction of (5). The cooling medium contained in the cooling tank may be water, oil, or the like, and the water or oil may be selectively used according to heat treatment conditions, and may be used in a state of being heated or cooled to a constant temperature.

In addition, the cooling tank 10 preferably has a cooling medium supply end 12 at the lower end of the cooling tank, a cooling medium discharge end 14 at the upper end, and a drain line 16 at the bottom. good. Through this, the cooling water is supplied to the cooling water supply line at the bottom of the rear end of the cooling tank, the forward end of billet transfer direction, and the water is supplied.The drainage of the heated cooling water is connected to the cooling water drain line at the upper end of the cooling tank. Through the flow through the cooling water temperature can be automatically adjusted through the adjustment of the supply and drainage to maintain a constant 40 ℃ preferably. Accordingly, it is possible to efficiently manage the cooling water at an appropriate temperature, and the scale (SCALE) deposited on the bottom may be discharged through the drain line. In order to facilitate the discharge of the scale, it is preferable to have a shape inclined so that the bottom surface is lowered toward the rail line as shown.

The upper portion of the cooling tank 10 is provided with a transmission rail 20, the transmission rail 20 is transferred to the rear end from the front end of the cooling tank 10 so that the transfer hook 30 is automatically transferred by gravity, without a force It plays a role. To this end, the rail bottom surface 22 of the transmission rail 20 has a shape inclined downward toward the rear end of the cooling tank as shown. The rail corresponds to various known rails, and preferably, two rails are arranged side by side as shown in FIG. 3 in terms of simplicity, stability of transport, and stability of the structure. However, the structure of such a rail is not limited to the above-described preferred example, in addition to the structure that the wheel is coupled to both sides of one rail, or may be configured by combining three or more rails.

Also preferably, as shown in FIG. 2, the transmission rail 20 may be configured in such a manner that the bottom surfaces of the rails at both ends are bent upward so that the transfer hook 30 does not leave the rail ends only by traveling. . In this case, as shown in FIGS. 2 to 3, the rail further includes a guide rail portion at the top as well as a bottom surface 22 to which the wheels contact, so that the transfer hook 30 may be configured so as not to be released from the rail during transmission. At the end thereof, the guide rail portion should be opened so that the transfer hook can be pulled out.

The transfer hook is connected to the transmission rail having the inclined rail bottom surface 22 as shown. The transfer hook 30 has a wheel part 32 rotatable in contact with the rail bottom surface 22 of the transmission rail 20 at the top, the wheel part may have a variety of well-known wheels. . The transfer hook has a hook shape. Preferably, the bottom surface of the hook has a flat shape, as shown, for even cooling and stable transmission of the billet. In addition, although the opening of the hook is shown as the opposite side of the transmission direction as shown, it does not necessarily need to be the same, but may be opened in the opposite direction.

Preferably, the transfer hook 30 is formed by arranging at least two hook-shaped hooks side by side and connecting them, as shown in FIG. 3, and the wheel parts may be paired side by side. This enables stable transfer of the billet while reducing the weight of the hook, and can reduce the installation cost by reducing the capacity and size of the transfer unit according to the weight reduction of the hook.

In this way, the transfer hook which transfers the billet into the cooling medium along the transfer rail 20 and completes the cooling and transferring of the billet is put down the billet which has been cooled and transferred at the billet unloading part 65 and becomes an empty transfer hook. Therefore, such an empty transfer hook is to be transferred to the billet stacking unit 55 for the loading of a new billet for this purpose, the return rail 40 is required.

The return rail 40 is formed to be inclined downward as the rail bottom 42 symmetrically with the transmission rail 20 toward the front end of the cooling tank, (in this case, the inclination may be lower than the inclination of the transmission rail). -Since there is no resistance of the cooling medium, it is advantageous for the conveying hook not to contact the cooling medium at the time of return, for this purpose, the upper part of the cooling tank 10 is higher than at least the height of the conveying hook 30. Will be located.

The rail corresponds to various known rails, and preferably, two rails are arranged side by side as shown in FIG. 3 in terms of simplicity of configuration, stability of transport, and stability of structure. However, the structure of such a rail is not limited to the above-described preferred example, in addition to the structure that the wheel is coupled to both sides of one rail, or may be configured by combining three or more rails.

Also preferably, as shown in FIG. 2, the return rail 40 may be configured in such a manner that the bottom surfaces of the rails at both ends are bent upward so that the transport hooks 30 do not leave the rail ends only by traveling. . In this case, as shown in FIGS. 2 to 3, the rail may further include a guide rail portion at the top as well as a bottom surface 42 to which the wheels contact, and may be configured so that the transfer hook does not deviate from the rail during the rotation. At the end thereof, the guide rail portion should be opened so that the transfer hook can be pulled out.

The transmission rail 20 and the return rail 40 may be configured independently of each other. Preferably, as shown in FIG. 3, the return rail 40 is at least above the upper portion of the transmission rail 20. It is preferable to have a two-layer structure located higher than the height of the transfer hook (30). Through this, the area occupied by the conveying device can be reduced, so that the conveying device can be configured more compactly.

In order to circulate the transfer hook 30 together with the above components, the transfer hook 30 on which the billet 5 is loaded in the billet stacking unit 55 is loaded on the front end of the transfer rail 20, and the return The front end conveyance part 50 which conveys the empty conveyance hook 30 returned to the rear end by the rail 40 to the said billet loading part 55, and the billet transmitted to the rear end by the said transfer rail 20. Lower the transfer hook 30 loaded with (5) to the billet unloading portion 65, and the empty transfer hook 30 to which the billet 5 is unloaded from the billet unloading portion 65 to the front end of the return rail (40). The rear end transfer part 60 to load is required.

That is, as shown in the figure, the empty transfer hook is seated, and a billet stacker for stacking the heated billets is provided at the front of the cooling tank, and the shear transfer unit transfers the transfer hook loaded with the billet from the billet stacker. It is loaded on the front end of the transfer and the empty transfer hook returned to the rear end by the return rail is transferred to the billet loading portion to be seated or fixed.

The shear transfer unit 50 serves to transfer the transfer hook from one point to another point, and various mechanisms for performing such a function may be applied thereto, and preferably, a crane method as shown in FIG. It is better in terms of reliability, and more preferably, as shown in the figure, the lifting and lowering (for up and down movement) is made by the hydraulic cylinder 51, and the electric motor has a rail having a front and rear direction (for example, a two-layer structure). In this case, it is preferable to use a crane system that travels forward, backward, left and right directions (for example, when the transmission rail and the return rail are arranged side by side).

In addition, the rear end conveying unit 60 is provided with a billing unloading portion is placed on the rear end of the cooling tank, the transfer hook containing the cooled billet is seated and the cooled down billet is provided at the rear end of the billet unloading portion as shown The transfer hook containing the billet transferred to the rear end by the transfer rail is transported to the billet unloading unit to be seated or fixed, and the empty transfer hook loaded with the billet is loaded on the front end of the return rail to be returned.

As described above, the rear end transfer part also serves to transfer the transfer hook from one point to another point, and various mechanisms for performing such a function may be applied thereto. The application is good in terms of reliability, and more preferably, as shown in the figure, the lifting and lowering is made by the hydraulic cylinder 61, and the electric motor is moved forward and backward (for example, in the case of having a two-layer rail) or before and after It is preferable to use a crane system which travels in the left and right directions (for example, when the transmission rails and the return rails are arranged side by side).

More preferably, as described above, the front end conveyance part and the rear end conveyance part perform the same function, and the front end conveyance part and the rear end conveyance part are constituted by one crane reciprocating from the front end to the rear end by the driving of the electric motor. Thereby, it can also be configured in the form responsible for both the front end and the transfer of the rear end. This can reduce equipment manufacturing costs.

In addition, the billet stacking portion 55 and the billet unloading portion 65 is composed of a plurality of cylinders and pallets (a plurality of side-by-side arranged flat plate vertically as shown, each hook of the transfer hook is the pallet plate) It can be inserted into the lower than the pallet height to facilitate the loading and unloading of the billet and the transfer of the empty transfer hook.), And in addition, various known methods can be applied thereto.

According to the automatic cooling transfer device of the billet of the present invention, the rapid cooling process of the heated billet (BILLET) in the wire rod production process is automatically performed in a continuous process, so that the subsequent flaw detection process is possible early, and then the wire rod It is possible to achieve rapid productivity by enabling rapid input to the furnace and enabling continuous and automatic production in batches until the next process without interrupting the flow of product production in wire rod production.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various modifications and changes made by those skilled in the art without departing from the spirit and scope of the present invention described in the claims below. Changes are also included within the scope of the invention.

Claims (8)

A cooling tank in which a heated billet is oriented horizontally, drawn in from a front end, immersed, and transported in a direction perpendicular to a length direction of the billet, and containing a cooling medium therein; A transmission rail which is formed to be inclined downward toward the rear end of the cooling tank, and is located above the cooling tank;  The upper end has a wheel portion rotatable in contact with the bottom of the rail of the transmission rail, the lower end of the hook portion in contact with the bottom surface of the rail of the transmission rail to be immersed in the cooling medium of the cooling tank when transported on the transmission rail Feed hook; A return rail which is formed to be inclined downward toward a front end of the cooling tank, and is located at least higher than the height of the transfer hook on the upper portion of the cooling tank; A shear transfer unit which loads the transfer hook loaded with the billet at the billet stacking unit at the front end of the transfer rail, and transfers the empty transfer hook returned to the rear end by the return rail at the billet stacking unit; And, And a rear transfer unit for lowering the transfer hook loaded with the billet transferred to the rear end by the transfer rail and loading the empty transfer hook loaded with the billet at the front end of the return rail. Automatic cooling feeder for billets. The method of claim 1, The cooling medium is water or oil, The cooling tank has a cooling medium supply end at the lower end of the cooling tank, has a cooling medium discharge end at the upper end, has a drain line at the bottom, and the bottom of the cooling tank is inclined to be lowered toward the drain line. Automatic cold feed of billets. The method of claim 1, The transfer rail and the return rail are bent at the bottom of the rail at both ends of the upper end of the billet automatic cold transfer device characterized in that the transfer hook does not leave the rail end by running only. The method of claim 1, And said return rail is located at the upper portion of said transfer rail at least higher than the height of said feed hook. The method of claim 1, The transfer hook is formed by arranging at least two hook-shaped hooks side by side and connected to each other, and the wheel portion is automatically cooled conveying apparatus of the billet characterized in that the pair is made in parallel. The method of claim 1, The front end conveying unit or the rear end conveying unit automatic cooling conveying apparatus of the billet characterized in that driven by the crane method. The method of claim 6, The front conveying unit or the rear conveying unit is the lifting and lowering is made by the hydraulic cylinder, the automatic cooling transfer device of billet characterized in that the driven by a crane method that is driven forward and backward or forward and backward and left and right by the electric motor. The method of claim 7, wherein The front end conveying part and the rear end conveying part are constituted by one crane reciprocating from the front end to the rear end by driving of the electric motor, thereby automatically cooling the billet, characterized in that it is responsible for both the front end and the rear end conveyance. Conveying device.

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