RU2367534C1 - System for reception and transportation of feed bars from rolling mill to storage-discharge facility - Google Patents

Abstract

FIELD: transportation.

SUBSTANCE: system is outfitted by device for offtake of feed bars to different tracks, interacting, at least with one cutter for feed bar, executing a translational motion, brake arrangement for feed bars, interacting at least with one group of devices for reception and discharge of feed bars, allowing flutes for reception and discharge of feed bars to located lower plate, executing a translational motion. Ability of manufacturing of short feed bars and transportation of it at a high rate is provided ensured by that group of devices for reception and discharge of feed bars contains at least three joined one to each other parallel devices, device for discharge of feed bars includes moving guide devices, provided for that alternately direct sequentially coming to it feed bars in recycling sequence to corresponding (-s) flute (-s) (cn) in each of mentioned devices for reception and discharge of feed bars so that in a time when in the first this device it is finished discharge of next feed bar, the letter of these devices takes up a position, in which it is ready to reception of new feed bar, and intermediate (-s) of these devices is (are) operating, receiving the next feed bar.

EFFECT: increase in productivity of equipment, rate increasing of feed bars transportation.

8 cl, 8 dwg

Description

Technical field

The invention relates to a system designed for the sequential reception and movement of rods from a rolling mill to a storage and unloading device and the characteristics of which correspond to those indicated in the restrictive part of the main claim.

Definition

In this description of the invention, under the bar should be understood metal long products of any type, and therefore also wire, or bar, or profile.

Scope of application

In essence, the scope of the present invention is rolling mills with hot rolling mills designed for the production of metal bars.

BACKGROUND OF THE INVENTION

At present, it is known that for the production of rods using hot rolling mills behind the rolling mill line, high-speed continuous cutting of continuous high-quality rolled products into bars and their removal, in essence, into two interconnected parallel troughs, which are included in the work together with the corresponding (known), is provided a device providing braking of the end / breaking off of the next bar, from where the rods that have stopped their translational motion fall onto the plane below them cooling along which they gradually move towards the packaging line. Such a feature is disclosed in IT 112 813 (SIMAC SPA).

Therefore, this technical solution provides for the presence of two gutters, with the alternate functioning of which at the time one of them receives the next bar at this time, the previous bar is unloaded from the other gutter, and vice versa.

Patents US4258951A (KINNICUTT JR ROGER ET AL) and US3834260 (SIEURIN D Et AL) disclose a bar switching apparatus for the same purpose.

Problems and disadvantages of existing technical solutions

The problems and disadvantages of existing technical solutions are determined, in essence, by the fact that in these solutions there is an insurmountable speed limit for the production of bars, due to the alternation of the work of these two gutters.

To solve this problem, technical solutions have been proposed that involve the use of a larger number of pairs of gutters with the use of additional outlet devices located upstream of the bar, which ensures the presence of a larger number of receiving, stopping and unloading lines, each such line containing a pair of corresponding receiving devices with gutters.

Examples of such technical solutions can be found in patent 1T1010454, issued in the name of Officine Meccaniche Danieli and relating to a device for moving rods from a rolling mill at a very high speed, characterized in that it includes a multi-groove trough with four or more streams along which the rods , cut to size, can alternately move in the appropriate direction. This technical solution is quite complicated, and in addition, it requires the division of rolled products into two different paths of movement so that for each such path there is a double trough (a total of four streams), into three different paths of movement so that for each such a path was accounted for by a double gutter (a total of six streams), etc. Therefore, such a technical solution becomes too complicated and, in addition, very burdensome in terms of its practical implementation.

In addition, such technical solutions have been proposed that provided for the use of appropriate technical means having two grooved devices, each such grooved device including a larger number of grooves capable of receiving the said rods in order of priority. Such a technical solution is described in the application for the Italian patent under No. UD97A000007 dated 01/21/1997, filed on behalf of SIMAC S.p.A., and provides for the presence of two drums, each equipped with two pairs of gutters located one opposite the other.

A more advanced technical solution, which provides for the supply of four different troughs in the direction of the rotating drums, each of which includes four troughs arranged in pairs opposite each other, is considered in patent IT-A-1127813, issued in the name of SIMAC Spa

However, all these technical solutions have a certain restriction imposed on them in connection with the presence of a pair of grooved devices used here to ensure a higher speed operation mode of an industrial installation, but which at the same time is fraught with the need to put up with a certain burden and complexity of the corresponding equipment, and one additional drawback in this case also lies in the fact that increased burdensomeness is additionally associated with the emergence of some insurmountable restrictions Nij, binding to double the number of pieces of equipment required for a given installation, and therefore to double the cost of it.

In addition, it is also known that when there are two grooved devices and when receiving rods at a speed of 40 m / s, it is necessary to ensure the cutting and reception of rods with a length of at least 90-100 m, since in case of imposing the aforementioned time limit, there is a real possibility of reception, braking and unloading each bar in sequential order in one and the other of these devices. It is known that at enterprises producing bars of very long lengths, there must also be corresponding installations, which are very bulky and have a large overall length (and therefore the buildings in which they are located must also be spacious enough), which makes them much more costly. If the rods will have a length of 100 m, then both the grooved devices and the corresponding refrigerating plate will have to have exactly the same length, which is also associated with increased burdens. In addition, it is well known that a very long rod of small diameter (for example, only 6-10 mm) is difficult to process, including machining, and can also become relatively confused.

Scope of the present invention

The scope of the present invention provides a solution to the above problems, eliminates the noted drawbacks and, in addition, to do all this without any additional overhead, as well as without a concomitant decrease in the reliability of the equipment used and without a significant increase in its burdensomeness:

- improving the functionality of the equipment and increasing its efficiency;

- increasing the productivity of the installation so as to ensure the possibility of working at an increased speed without the need for duplication of the refrigeration plate.

Another objective of the present invention is to enable the production of very short rods, since it is known that it is not possible to obtain very short rods using only traditional devices having troughs arranged in pairs, into which the rods they receive alternately, precisely because of those limitations , which are imposed in connection with the consistent implementation of the relevant actions for the reception, braking and unloading of bars.

Solution to the problem and summary of the distinguishing features of the invention

The solution to this problem is provided due to the distinguishing features of the present invention indicated in the main paragraph of the attached claims.

In the dependent claims, preferred embodiments of the present invention are provided that provide corresponding advantages and allow for the best possible functionality.

Benefits

Thus, the following benefits are obtained:

- improving the functionality of equipment and increasing its efficiency;

- increase in productivity.

In fact, in the presence of two such devices designed for receiving and unloading rods, the permissible speed of the translationally moving rod can reach 40 m / s, while in the presence of three such devices installed next to each other, each of which can receive and unload at a time one bar, it is possible to obtain a speed of movement of the bar, reaching 60 m / s and even higher (70-80 m / s), which is due to the significant simplification of the operations performed in this case, as well as due to the increase in belt, which is provided to each device for receiving, braking and unloading the corresponding rod on the cooling plane with its subsequent movement in the transverse direction.

In addition, when applying such a technical solution, it is also possible to receive very short rods, for example, only 50-60 m long, because there is more time for receiving, braking and unloading each bar in a sequential order. In this case, the corresponding device intended for receiving, braking and unloading the bar on a refrigerating plate can be significantly shortened, so that such an entire industrial installation as a whole will become less burdensome while maintaining its same performance.

In addition to this, it is known that the transportation of shorter rods is greatly simplified, and the risk of entanglement is accordingly reduced.

It is quite natural that with such a technical solution it will be possible to receive, brake and unload at a high speed two rolled wires (bars) at once simultaneously (when separately rolling, or in the case of using a two-strand rolling mill, for example, such as that disclosed in patent 1T- A-83489A / 88), as well as unload one bar at a time at the same time using three drums with double grooves (namely, two opposite pairs on each drum), as provided in application No. UD97A000007, filed from SIMAC S.p.A. company name

It is quite natural that in this embodiment of the present invention, which provides for the presence of three adjacent grooved devices adjacent to each other, nothing excludes the possibility that only two of them can be used simultaneously to ensure the forward movement of the rods along them, as it happens, for example, when working with larger rods. In fact, it is well known that for the same type of rolling mill, the feed rate of the rods at the outlet varies, increasing with an increase in the total number of smaller profiles and decreasing with an increase in the total number of larger profiles. Thus, it is obvious that such a rolling mill will be much more versatile, fast-acting and also more compact.

Description of a preferred embodiment of the present invention

To provide a more complete understanding of the present invention, the following is a description of a preferred embodiment, which is carried out with reference to the accompanying drawings, in which:

- Figure 1 is a schematic front view showing a new mechanism for receiving rods and equipped with three devices adjacent to each other (T1, T2, T3) with receiving chutes (cn), from which the rods are unloaded to the lower refrigeration the plate and the Schlepper (PR), moreover, each of the above devices provides for the presence of four gutters (cn) located orthogonally with respect to the corresponding rotating drum and designed to receive corresponding rods in them kov, each time one bar 1, 2, 3 (one-time feed).

- Figure 2 is a modified view in relation to the previous view, and this view shows the troughs combined together in opposite pairs and designed to receive the next one after another of the next pairs of rods 1-2, 3-4, 5- 6 to each of the available reels.

FIG. 3 is a view illustrating another embodiment of the method relative to that shown in the previous drawing, wherein the rods received by each trough may be different 1B-1A, 2B-2A, 3B-3A.

Figure 4 is a view illustrating stages A), B), C), D), E) of the process of receiving and unloading in relation to the technical solution presented in figure 1.

Figure 5 is a plan view of the portion of the installation where the rods are cut into pieces of a certain length and, accordingly, the outlet of the next pieces into separate troughs (cn) of the existing devices (T1, T2, T3) for receiving, braking and unloading rods.

5A, 5B, 5C are respective sectional views for the installation shown in FIG. 5.

Fig.6 is a perspective view depicting the technical solution shown in Fig.5.

7 and 8 illustrate other technical solutions, representing a non-rotating groove system.

Detailed description of the invention with reference to the accompanying drawings

From the drawings presented here, it follows that the present invention essentially includes a group (T) of devices designed for receiving and unloading rods, which consists of three such devices (T1, T2, T3) that receive and unload the rods.

Upstream of the movement of the rods, there is an appropriate mechanism for cutting the bar into separate pieces with their subsequent movement, and which essentially consists of:

1 - a horizontal tapping device (Z) located upstream of the rods and having two positions for alternately tapping the rods to the right and left to the cutting knives of mechanical shears with continuously rotating knives of the type known in the art (CVC), and it is obvious that they can mechanical scissors of this type are also used, which are switched on and off alternately.

ii - gutters (H) with two paths, located downstream of the rods relative to mechanical scissors (CVC);

iii - pairs of vertical outlet devices (X, Y), each of which performs a vertical outlet movement in three positions;

iv - three horizontal tapping devices P, Q, R, located one above the other, namely, closing each other, each of which performs horizontal movement in two positions, respectively, from left to right;

v - three fixed slippers (A, B, C), by means of which the output of the three devices (P, Q, R) for draining the bars left and right is connected to the corresponding three grooves of the device (T1, T2, T3) that receives the rods and unloading them on a refrigerating plate with the corresponding actuation of the brake device (FC) for the tail of the rods, known in the art and provided for each of them.

It is natural that although Figs. 1-6 show three devices that receive and unload rods and are of a type that includes three rotary drums, it is also possible to use similar devices with drop-down shelves, namely, rotary drums can be replaced by fixed, openable troughs, in this case, three such openable troughs.

Functioning

I) the installation is equipped with:

- a horizontal diverting device (Z), located upstream of the rods and to the right;

- a right-hand vertical diverting device (X) located in a high position (upper);

- a left-side vertical diverting device (Y) located in an intermediate position (middle);

- the upper horizontal discharge device (P) located on the right;

- an intermediate horizontal discharge device (Q) located on the left;

- lower horizontal diverting device (R) located on the right;

- therefore, the bar passes through the outlet device (Z), the right track of the gutter (H) with two tracks, the vertical outlet device (X) located in the upper position, the upper horizontal outlet device (P) located on the right, and the third slapper (A) connected to the corresponding third device (T3), which receives and unloads the rods, using the braking device (FC) for the rods.

Ii) the functioning process includes the following stages:

a) at the initial stage of the movement of the head of the long products, as indicated above, when they reach the length at which it will need to be cut, the next bar is cut from solid long products, which are deflected under the rotating knives of flying mechanical shears (CVC) with the simultaneous actuation of the horizontal diverting device (Z), located upstream of the movement of the bar, which as a result of this is transferred from one of its position to another;

b) as soon as the cutting of the bar occurs, the head part of the second bar following it goes, which does not bump into the tail part of the previous first bar, which is already in another trough, but runs along the next path of the trench, already brought under the second bar , wherein:

- it takes the left-hand track of the gutter (N) with two tracks;

- the vertical discharge device (Y) is in its intermediate position;

- the intermediate horizontal outlet device (Q) is in the left position;

- the central / intermediate slapper (B), supplied to the second grooved device (T2), which receives the rods, is in its intermediate position, provided by means of the corresponding braking device (FC) for the rods;

c) at the same time, the previous first bar is braked using a brake device (FC) for the rods located at the input of the corresponding trough of the third device (T3), which receives the rods, and, therefore, this bar is unloaded;

d) as soon as the tail of the first rod passes the beginning of the slapper (A), the right vertical diverting device (X) and the upper horizontal diverting device (P) are moved in such a way as to allow the next third rod to be received, while the right-hand vertical diverting device ( X) is accordingly transferred from its upper position to its lower position, and the upper horizontal diverting device (P) is transferred from its right position to its left position;

e) at the same time, the second bar reaches its length at which it will need to be cut already, and thus, with the help of mechanical scissors (CVC) at this moment, it is cut, and the horizontal discharge device (Z) located above in the course of the movement of the rods, it is transferred from the left position to its right position;

f) as soon as this bar is cut off, the head of the third bar following it is sent after it, while it does not bump into the tail of the previous second bar, which, as indicated in paragraph d), is already on the corresponding track in the first slapper ( C), as well as in the corresponding trough of the first device (T1), receiving the rods;

g) consequently, the second bar is braked with the appropriate brake device (FC) for the rods located at the inlet of the trench of the second central device (T2) that receives the rods, and thus, this rod is unloaded onto the plate;

h) as soon as the tail of the second bar passes the beginning of the central splitter (B), the left-side vertical diverting device (Y) and the intermediate horizontal diverting device (Q) respectively move as follows:

- the first of these devices (Y) is transferred from an intermediate position to its upper position, and

- the second of these devices (Q) is transferred from the left position to its right position,

to thereby ensure the possibility of receiving the next fourth rod and moving its head to the third Schlepper (A) and, therefore, to the corresponding third device (T3) with receiving channels;

i) at the same time, when the third bar reaches its length so that it will need to be cut off already, the horizontal diverting device (Z), located upstream of the movement of the rods, is transferred from its right position to its left position;

1) as soon as this bar is cut off, the head of the fourth bar following it is sent after it, while it does not bump into the tail of the previous third bar, which, as indicated in paragraph h), is already on the corresponding track in the third slapper ( A) and, therefore, is discharged into the third device (T3) with receiving troughs;

m) at the same time, the third rod is braked using the corresponding braking device (FC) for the rods located at the input of the first device (T1), which receives and unloads the rods, and, thus, the rod is unloaded onto the plate (PR).

Of the individual stages considered in the description above, the whole cycle consists of cutting and unloading the first three rods onto the plate, and this cycle continues to be carried out for the entire time until all the necessary rods are obtained from the corresponding blank.

Upon completion of the unloading of the last bar onto the plate, all the discharge devices (Z, X, Y, P, Q, R) again occupy in this installation a position of readiness for the repeated execution of the cycle considered here above.

Naturally, only one of the possible technical solutions is given here, starting with a preliminary description of the installation in subparagraph (I), but, nevertheless, it should be quite obvious that a completely different initial setup of the installation considered in this description is quite possible. inventions (for example, completely opposite to the above, or involving the beginning of the implementation of this cycle in the center of the installation or in some other place, etc.).

Claims (8)

1. A system for sequentially receiving and moving rods from a rolling mill to a storage and unloading device, including a device for diverting rods to different tracks, interacting with at least one cutting device (CVC) for rods making translational motion, at least , a braking device (FC) for rods, interacting with at least one group of devices for receiving and unloading rods, and containing adjacent devices (T) adjacent to one another with a chute / s for receiving and unloading the rods to the lower plate (PR), performing translational motion, while the said group of devices (T) for receiving and unloading rods contains at least three adjacent devices (T1, T2, T3) for receiving and unloading rods adjacent to each other and located essentially parallel to each other, the aforementioned device for removing rods includes movable guiding devices designed for alternately sequentially directing the rods coming to them during in a repeating manner to the corresponding gutter (s) (cn) in each of the said devices (T1, T2, T3) for receiving and unloading the rods in such a way that, while in the first such device (T1), it is completed and / or the unloading of the next bar ends, the last of these devices (T3) takes its position in which it is ready to receive a new bar, and the intermediate (s) of these devices (T2) are (are) in operation, taking the next bar, characterized in that it includes upstream relative to the rods regarding the said group (T) of devices for receiving and unloading rods and a braking device (FC) for rods, a horizontal diverting device (Z) having two positions for alternately removing the rods to the right and left to the cutting knives of mechanical shears with continuously rotating knives of the type (CVC ) or mechanical scissors, which alternately turn on and off, a gutter (H) with two tracks, located downstream of the movement of the rods relative to the mechanical scissors (CVC), a pair of vertical tapping devices (X, Y), each of which makes a vertical diverting movement in three positions, three horizontal diverting devices P, Q, R, located one above the other, namely, closing each other, each of which makes a horizontal movement in two positions, respectively, left and right, three fixed slippers (A, B, C), by means of which the output of the three devices (P, Q, R) for draining the bars left and right is connected to the corresponding three grooves of the device (T1, T2, T3) that receives the rods and unloads them on the refrigerator according the corresponding actuation of the braking device (FC) for the tail of the rods provided for each of them. 2. The system according to claim 1, characterized in that the devices (T1, T2, T3) for receiving and unloading rods are rotating drums with many longitudinal grooves (cn) located on their periphery. 3. The system according to claim 1, characterized in that the devices (T1, T2, T3) for receiving and unloading the rods include at least one longitudinal stationary chute with an opening door. 4. The system according to claim 2, characterized in that for each device (T1, T2, T3) there are four gutters (cn) arranged orthogonally. 5. The system according to claim 2, characterized in that for each device (T1, T2, T3) there are four gutters (cn) arranged in pairs that are opposite one another. 6. The system according to any one of claims 1 to 5, characterized in that the devices for receiving and unloading the rods are devices that provide for the presence of grooves made on a rotating drum with the possibility of receiving each next rod in the corresponding closed groove and lowering the next him a bar in an open trench. 7. The system according to any one of claims 1 to 5, characterized in that the devices for receiving and unloading the rods are devices that provide for the presence of fixed gutters with a door that closes when the bar is received and that opens when the bar is lowered. 8. The method of receiving rods and unloading them onto a refrigerator using the system according to claim 1, equipped with a horizontal outlet device (Z), located upstream of the rods and to the right, the right vertical outlet device (X) located in the high - top position, left vertical diverting device (Y) located in the intermediate - middle position, upper horizontal diverting device (P) located in the right position, intermediate horizontal diverting device (Q), finding in the left position, the lower horizontal outlet device (R) located in the right position, in which the bar is passed through the outlet device (Z), the right track of the gutter (H) with two tracks, the vertical outlet device (X) in the upper position , the upper horizontal diverting device (P), in the right position, and the third Schlepper (A) connected to the corresponding third device (T3), which receives and unloads the rods, using the brake device (FC) for the rods, while receiving and you the loading of the rods is carried out in accordance with the following stages: when the length of the rod requiring cutting is reached, the next bar is cut off from continuous long products, which are deflected under the rotating knives of flying mechanical shears (CVC) with the simultaneous actuation of the horizontal discharge device (Z), located upstream of the rod, which as a result of this is transferred from one of its position to another, and after cutting the rod, the head part is sent after it the second bar behind it, which does not bump into the tail of the previous first bar, which is already in another trough, but runs along the corresponding path of the trench prepared for the second bar as follows: the bar is taken to the left track of the trench (H) with two tracks while the vertical diverting device (Y) is in its intermediate position, the intermediate horizontal diverting device (Q) is in the left position, the central Schlepper (B), supplied to the second grooved device The bar (T2) that receives the bar is in an intermediate position, which is provided by means of the corresponding braking device (FC) for the rods, at the same time, the previous first bar is braked using the braking device (FC) for the rods located at the input of the corresponding channel of the third the device (T3) that receives the bar, then unload the bar onto the plate (PR), and as soon as the end part of the first bar passes the beginning of the splitter (A), the right-hand vertical hole the feeding device (X) and the upper horizontal diverting device (P) are moved in such a way as to enable reception of the third rod, while the right vertical diverting device (X) is respectively transferred from the upper position to the lower one, and the upper horizontal diverting device (P) is transferred from the right position to the left, at the same time, the second bar, which has reached the length that requires cutting, is cut with the help of mechanical scissors (CVC) at this moment, and the horizontal outlet device (Z) located above in the course of moving the rods, they are transferred from one of their positions to another, after cutting this rod, the head of the third rod following it is sent after it, while it does not bump into the tail of the previous second rod, which is already on the corresponding track in the first slapper (C ), as well as in the corresponding groove of the first device (T1) that receives the rods, the second rod is braked using the corresponding braking device (FC) for the rods located at the entrance of the groove in another central device (T2), which receives the rods, and then - unloading this rod onto the plate (PR), after the tail part of the second rod passes through the beginning of the central splitter (B), the left vertical outlet device (Y) and the intermediate horizontal outlet device (Q) respectively, move as follows: the first of these devices (Y) is moved from an intermediate position to the upper, and the second of these devices (Q) is moved to another position, thereby ensuring the possibility of receiving the next fourth ka and moving its head to the third Schlepper (A) and, consequently, to the corresponding third device (T3) with receiving troughs, at the same time, when the third rod reaches the length requiring cutting, a horizontal discharge device (Z) located upstream the movement of the rods is transferred from one position to another, after cutting this rod, the head of the fourth bar following it is sent after it, while it does not stumble on the tail of the previous third bar, which is already on the corresponding track in the third Schlapper (A) and, therefore, is discharged into the third device (T3) with the receiving channels, at the same time, the third rod is braked using the corresponding brake device (FC) for the bars located at the input of the first device (T1), which reception and unloading of rods, and, thus, unloading this bar onto a plate (PR), then repeat the cycle with a transition from right to left and vice versa.

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