ES2318763T3 - SYSTEM FOR THE RECEPTION AND TRANSPORTATION OF BARS FROM A LAMINATOR TO A COLLECTION AND DISCHARGE DEVICE. - Google Patents

Abstract

System for receiving and transporting bars from a laminator to a collection and unloading device, of the type where it is provided with: where: - bar diversion means to different associated tracks - at least one bar length cutting device that advances (CVC); - at least bar braking means (FC) associated with - at least one receiving and unloading group of bars with at least two adjacent devices with channel / s for receiving and unloading bars (T1, T2), on the plate of underlying translation (PR), - said bar reception and unloading group (T) includes at least three adjacent and substantially parallel bar reception and unloading devices (T1, T2, T3); - said bar deflection means includes mobile guide devices for alternatively directing, in a sequential manner, the incoming bars in repetitive progression, on the respective channel (s) (CN) of each of said bar receiving and unloading devices (T1, T2, T3), so that while the first (T1) completes and / or completes the unloading of the bar, the last (T3) is in a position to receive a new bar and that / those intermediate (s) (T2) are working on the reception of the bar, characterized by the fact that it includes above said group of reception and discharge of bars (T) and interruption of the bar (FC) the following devices: i - horizontal upstream diverter (Z) with two positions to alternately deflect the bars to the right and to the left of the cutting blades of the shears with rotating blades in a known way (CVC), it is also possible to use shears of the type start-stop. ii - channel with two tracks (H) placed under the shears (CVC); iii - a pair of vertical deviators (X, Y) each with vertical deviation movement in three positions; iv - three horizontal deviators P, Q, R, arranged one above the other, that is, superimposed, each with a horizontal movement in two positions respectively right-left; v - three fixed conveyors (A, B, C) that connect the output of said three diverters from right to left (P, Q, R), to the three channels of the device for receiving and unloading bars on the cooling plate ( T1, T2, T3) with the respective intermediation of a tail brake / bar interruption (FC) of known technique for each of these.

Description

System for receiving and transporting bars from a laminator to a collection and unloading device.

Technical field

This invention relates to a system for reception and sequential transport of bars from a laminator to a collection and download device, whose characteristics make up the pre-characterizing part of the claim principal.

Definition

In this description it is understood by bar any type of rolled metal section, accordingly, also wire or rod or section.

Domain

The domain is directed substantially to plants Hot laminators for the production of metal bars.

State of the art

It is currently known that for production of bars using a hot rolling mill, after the train of the laminator, cutting is provided at a continuous speed of the rolled section in bars, and its deviation in channels substantially parallel associates that act in alternation, with with respect to the tail brake / bar interruption (from the state of the technique), to stop the advancing bars and drop them on an underlying cooling plane, where these are gradually transferred to a packing line. IT112 813 (SIMAC SPA) exposes such characteristic.

Consequently this solution provides substantially two channels, so that, in operation alternative, while one receives the bar, the other downloads it and vice versa.

US4258951A (KINNICUTT JR ROGER ET AL ) and US3834260 (SIEURIN D ET AL ) disclose a bar change apparatus with a similar objective.

Problems and disadvantages of the state of the art

The problems and disadvantages of the state of the technique lie substantially in the fact that in this way a speed limit not exceeded for production is reached of bars, a limit that is imposed by the alternation of said two channels

To solve this problem, they have been created solutions with more pairs of channels, with the use of others diverters upward, so that more lines of reception, stopping and unloading of bars, involving each said line Pair of reception devices with channels.

Examples of these solutions are found in IT1010454 on behalf of Officine Meccaniche Danieli referring to a device for transporting bars from a laminator to a very high speed, characterized by the fact that it includes a four-way or more channel within which the cut of the Measured bars can arrive sequentially. This solution is complex and yet requires separation of laminated in two ways each including a double channel (four in total), on three tracks also containing a double channel (six in total), etc. The solution accordingly becomes more complex, but above all, bulky.

Media solutions have also been proposed with two channels, in which each one includes more channels capable of receive said bars in a sequential manner. This solution is described in Italian patent application n.UD97A000007 of 21-1-1997 on behalf of SIMAC S.p.A. Y Provides two drums, each drum equipped with two pairs Opposites of channels.

An improved solution, where the four-channel feed to the rotating drums, each involving four channels with two opposite pairs, is described in IT-A-1127813 on behalf of SIMAC S.p.A.

All these solutions, however, have a limit imposed by the pair of channels, which only have to double the pairs to increase the speed, but they are with this forced to withstand greater obstacles and complexity, with the disadvantage additional that the major obstacle also has limits unsurpassed, forcing the multiplication of the plant with the consistent duplication of costs.

In addition, it is known that with two channels, which they receive bars at a speed of 40 m / s, it is necessary to cut and receive bars of a length not less than 90-100 m, since said temporary limit imposed would allow reception, braking and unloading of each bar in one way sequential, over one and over the other. It is known that plants for very long bars they must also have plants that are very bulky and long (consequently, also the buildings that they contain them) and consequently they are more expensive. If the bars are of 100 m, these force both the channels and the plate cooling to be of the same length, consequently, greater obstacle. In addition, it is known that a very long bar with a small diameter (eg 6-10 mm) is treatable and Elaborable with difficulty, and can be easily entangled.

Field of the invention

The objective of the invention is the resolution of the problems and disadvantages mentioned above and also without further loads and without reducing reliability or substantially increasing obstacles:

-

improve functionality and efficiency;

-

increase plant yield to allow work at a higher speed without the need to double the refrigeration plate line.

Another objective of the invention is to be able to produce very short bars, since it is known that very short bars are not realizable with traditional devices with pairs of channels that receive the bars in alternation, precisely because of the limits imposed by the respective sequential action of reception, braking and unloading of
bars.

Problem solving and identification of the characteristics of the invention

The problem is solved with the features according to claim 1 and the corresponding method of the claim 6.

The secondary claims represent preferred advantageous solutions that provide better functionality

Advantages

In this way there is the advantage of:

- improve functionality and efficiency;

- Increase performance.

In fact, with two receiving devices and bar discharge, the permissible speed of the advancing bar It can reach 40 m / s, while with three devices contiguous, each of which receives and downloads a bar to the once, it is possible to reach a speed of 60 m / s and above (70-80 m / s) due to the greater simplification and the more time available for each device to receive, brake and unload the respective bar on the cooling plane and underlying transverse transfer.

With this solution, it is also possible to receive also very short bars, for example 50-60 m, because there is more time for reception, braking and unloading of each bar in a sequential way. In this case, the device reception, braking and unloading of the bar on the plate refrigeration can be shortened considerably, reducing the volume of the entire plant for the same production.

In addition, it is known that bar handling more Short is simplified and tangle hazards are reduced.

Naturally that with this solution is also possible to receive, brake and unload at high speed two cables / bars rolled simultaneously (division lamination or by a two-wire rolling train as in IT-A-83489 A / 88) and download one bar once on the plate using three drums with channels doubles (that is, two opposite pairs for each drum) as in n. UD97A000007 on behalf of SIMAC S.p.A.

Naturally with the launch of three adjacent channels, nothing excludes the fact that only two of these can be used to advance at slower speeds, such as It happens for example with larger bars. In fact, it is known that With the same type of rolling mill, the output speed varies increasing for smaller and smaller sections and decreasing for increasingly large sections. In this way obviously, the Plant will be much more versatile, faster and more compact.

Description of the preferred solution

For a better understanding, the invention is described in a preferred solution with the help of the figures attached, where:

- Fig. 1.- represents the schematic view front of the new bar receiving device with three adjacent devices (T1, T2, T3) with reception channels (cn) to unload the bars on the cooling plate and of underlying transfer (PR) where there are four channels (cn) arranged orthogonally on the rotating drum to receive alternatively the respective bars, a bar at a time 1, 2, 3 (single row feed).

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- Fig. 2.- represents a varied view with with respect to the previous one, with the channels with opposite pairs for receive a double succession of 1-2 bars, 3-4, 5-6, for each drum.

- Fig. 3.- represents a variant in the method with respect to the preceding figure where the bars received in each channel may be different 1B-1A, 2B-2A, 3B-3A.

- Fig. 4.- represents a view that illustrates the phases A), B), C), D), E) of reception and discharge of the solution Fig. 1.

- Fig. 5.- represents the plan view of the section of the plant as far as the cutting of the bars is concerned in length and respective deviation to the isolated channels (cn) of the three receiving, braking and unloading devices (T1, T2, T3).

Figs. 5A, 5B, 5C represent the views in corresponding section of the plant of Fig. 5.

Fig. 6.- represents the perspective view of the solution of Fig. 5.

Figs. 7 and 8 provide solutions alternatives with a non-rotating channel system.

Detailed description of the invention in relation to the figures

According to the figures it is observed that the invention substantially includes a group for receiving and unloading bars (T) made of three devices for receiving and unloading bars (T1, T2, T3).

Above are the respective devices of sectioning and transport, which essentially consist of:

i -

a horizontal upstream diverter (Z) with two positions to divert the bars alternately to the right and left of the cutting blades of the shears with continuously rotating fins of known technique (CVC), obviously being able to use shears of the type start-stop.

ii -

a channel with two tracks (H), placed under the shears (CVC);

iii -

a pair of vertical derailleurs (X, Y) each with vertical deviation movement in three positions;

iv -

three horizontal derailleurs P, Q, R, placed one on the other, that is, superimposed, each with movement horizontal in two positions, respectively right left;

v -

three fixed conveyors (A, B, C) that connect the output of said three diverters of right-left (P, Q, R) to the three channels of the device for receiving and unloading the bars on the cooling plate (T1, T2, T3) with the respective intermediation of a tail brake (FC) device of known technique for each one of these.

Naturally while in figures 1 to 6 the three receiving and downloading devices are of the type with three rotating drums, these could also have covers openable, that is, the rotating drums could be replaced through open channels, in this case three open channels.

Functioning

I) the plant is provided with:

-

horizontal derailleur up (Z) to the right;

-

vertical right hand derailleur (X) in elevated position (upper);

-

left-hand vertical derailleur (Y) in the intermediate (central) position;

-

horizontal top derailleurs (P) on the right

-

horizontal intermediate derailleur (Q) to the left;

-

lower horizontal derailleur (R) to the right,

-

in consequently the bar passes through the diverter (Z), the channel right of the double track (H), the vertical derailleur (X) in the upper position, the upper horizontal derailleur (P) to the right, the third conveyor (A) to the third device respective reception and download (T3) by interrupting the bar (FC).

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II) operation takes place according to following phases:

to)

to the principle of the advance of the head of the laminated section, as has been  mentioned above, when it has reached the cutting length, the bar is cut from the laminated section continues deflecting it under the rotating fins of the flying shears (CVC), activating the horizontal derailleur control above (Z), which passes from one position to the other,

b)

when the cut has taken place, follow the head of the second bar without interfering with the first tail of the bar already on the other channel, going along the next via already provided:

-

he channel to the left of the double track (H);

-

he vertical derailleur (Y) in an intermediate position;

-

he horizontal intermediate derailleur (Q) in position left;

-

he central / intermediate transport device (b) to the second channel of Reception (T2) is in an intermediate position, through the interruption of the respective bar (FC);

C)

meanwhile the first bar is braked by the bar interruption device (FC) placed at the entrance of the respective channel of the third device receiver (T3) and is accordingly downloaded;

d)

so soon as the tail of the first bar has passed the tail of the Conveyor (A), right vertical (X) and horizontal diverters upper (P) move in order to receive the third bar, respectively the right vertical derailleur (X) from the upper position to lower position and horizontal derailleur upper (P) from right to left;

and)

meanwhile the second bar has reached the length of cut, consequently it is cut (CVC), moving the top horizontal derailleur (Z) from the position left to right position;

F)

when the cut has taken place, the head of the third bar still does not interfere with the tail of the second bar on the track described in point d) in the first conveyor (C) and in the respective channel of the first device of  reception of the bar (T1);

g)

consequently, the second bar is braked by the interruption of the respective bar (FC) placed in the channel input of the second receiving device of the center bar (T2) and is consequently discharged on the license plate;

h)

so soon as the tail of the second bar has passed the beginning of central conveyor (B), left vertical diverters (Y) and Intermediate horizontal (Q) move respectively:

-

he first (Y), from the intermediate position to the upper position Y

-

he second (Q), from left to right; to receive the fourth  bar and transport your head to the third conveyor (A) and in consequence to the third respective device with receiving channels  (T3);

i)

meanwhile when the third bar has reached the cutting length, the horizontal derailleur of Up (Z) moves from the right position to the position left;

l)

when the cut has taken place the head of the fourth bar still does not interfere with the tail of the third bar, on the road provided at point h), on the third transport device (A), and consequently in the third device with receiving channels (T3);

m)

simultaneously, the third bar is braked by the interruption of the bar (FC) placed at the entrance of the first device for receiving and unloading bars (T1) and in consequence is unloaded on the plate (PR).

In the phases above the cycle has been described for cutting and unloading on the plate of the first three bars, which continues until all the bars that are obtained of an accommodation have been produced.

After having downloaded the last bar on the plate, all derailleurs (Z, X, Y, P, Q, R) are arranged in the plant to repeat the cycle.

Naturally this is one of the solutions possible starting from the procedure (I) above, but it is Obviously, the initial setting may be different (eg in opposite direction, or starting from the center, or from any position, etc.).

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References cited in the description

This list of references cited by the applicant was collected exclusively for information from the reader and not part of the European patent document. The same It has been made with the greatest diligence; the EPO however assumes no responsibility for possible errors or omissions

Patent documents cited in the description

IT 112813 [0004]

IT 1010454 [0009]

US 4258951 A [0006]

IT UD970007 A, 1997 [0010]

US 3834260 A [0006]

IT 1127813 A [0011]

Claims (8)

1. System for receiving and transporting bars from a laminator to a collection device and download, of the type where it is provided with:

-

media deviation of bar to different associated routes

-

to the minus a cutting device of advancing bar length (CVC);

-

to the less bar brake means (FC) associated with

-

to the least one reception and download group of bars with at least two adjacent devices with reception / download channel / s of bars (T1, T2), on the underlying translation plate (PR),

where:

-

saying reception and unloading group of bars (T) includes at least three reception and discharge devices for bars (T1, T2, T3) adjacent and substantially parallel one with respect to other;

-

sayings bar deflection means include mobile devices of guide to lead alternately, in a sequential manner, the incoming bars in repetitive progression, on the channel / s respective (CN) of each of said receiving devices and discharge of bars (T1, T2, T3), so that while the first (T1) completes and / or completes the download of the bar, the last one (T3) is in a position to receive a new bar and that / those Intermediate (s) (T2) are working on receiving the bar,

characterized by the fact that it includes above said group of reception and discharge of bars (T) and interruption of the bar (FC) the following devices:

i -

horizontal upstream diverter (Z) with two positions to divert the bars alternately to the right and left of the cutting blades of the shears with continuously rotating blades of known technique (CVC), being possible also to use shears of the type start-stop.

ii -

channel with two tracks (H) placed below the shears (CVC);

iii -

a pair of vertical derailleurs (X, Y) each with vertical deviation movement in three positions;

iv -

three horizontal derailleurs P, Q, R, arranged one over the other, that is, overlapping, each with a movement horizontal in two positions respectively right left;

v -

three fixed conveyors (A, B, C) that connect the output of said three diverters from right to left (P, Q, R), to the three channels of the receiving and downloading device of bars on the cooling plate (T1, T2, T3) with the respective intermediation of a tail brake / bar break (FC) of known technique for each of these.

2. System according to claim 1, characterized in that said reception and discharge devices for bars (T1, T2, T3) are rotating drums with a plurality of peripheral longitudinal channels (cn). 3. System according to claim 1, characterized in that said reception and discharge devices for bars (T1, T2, T3) include at least one static longitudinal channel with an openable door. 4. System according to claim 2, characterized in that there are four mentioned channels (cn) arranged orthogonally for each device (T1, T2, T3). 5. System according to claim 2, characterized in that there are four mentioned channels (CN) arranged in opposite pairs for each device (T1, T2, T3). 6. Method of receiving and unloading bars on the cooling plate using the system according to claim 1, characterized in that: I) the plant is provided with:

-

horizontal derailleur from above (Z) to the right;

-

right vertical derailleur (X) in a elevated position (upper);

-

left vertical derailleur (Y) in a intermediate position (central);

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-

upper horizontal derailleur (P) in the right position;

-

intermediate horizontal derailleur (Q) in the left position;

-

lower horizontal derailleur (R) in the right position;

the bar passing through the diverter (Z), the right channel of the double track (H), the vertical derailleur (X) in the upper position, the upper horizontal derailleur (P) in the right position, the third device (A) carrying the third respective receiving and unloading device (T3) by means of the bar brake (FC);

II)

the following phases being:

to)

when it has reached the length of cut, the bar is cut from the continuous laminated section deflecting it under the rotating blades of the shears flyers (CVC), activating the horizontal derailleur control of above (Z) that passes from one position to the other;

b)

when the cut has taken place, follow the head of the second bar, without interfering with the tail of the first bar already on the other channel, passing through the track already arranged as follows:

-

he left channel of the double track (H);

-

he vertical derailleur (Y) in an intermediate position;

-

he intermediate horizontal derailleur (Q) in position left;

-

he central / intermediate transport device (B) leading to the second reception channel (T2) found in an intermediate position, at through the respective bar brake (FC);

C)

Meanwhile, the first bar is braked by the bar brake device (FC), placed on the respective channel input of the third receiving device (T3) and consequently is discharged onto the plate (PR);

d)

so soon as the end of the first bar has passed the beginning of the conveyor (A), the right-hand vertical diverters (X) and upper horizontal (P), move in order to receive the third bar, respectively the right vertical derailleur (X) from the upper position to the lower position and the diverter upper horizontal (P) from right to left;

and)

meanwhile the second bar has reached the length of cut, consequently it is cut (CVC) moving the top horizontal derailleur (Z) from a position to the other;

F)

when the cut has taken place the head of the third bar still does not interfere with the tail of the second bar on the track described in point d) of the first conveyor (C) and in the respective channel of the first device of reception of the bar (T1);

g)

consequently, the second bar is braked by the respective bar brake (FC) placed on the channel input of the second device receiving the bar central (T2) and is consequently discharged onto the plate (PR);

h)

so soon as the tail of the second bar has passed the beginning of central conveyor (b), the left vertical diverters (Y) and Intermediate horizontal (Q) move respectively:

-

he first (Y), from the intermediate position to the upper position Y

-

he second (Q), in another position;

to receive the fourth bar and transport your head to the third conveyor (A) and consequently to the respective third receiving device of the channel (T3);

i)

meanwhile when the third bar has reached the cutting length, the horizontal derailleur of up (Z) moves from one position to the other,

l)

when the cut has taken place, the head of the fourth bar still does not interfere with the tail of the third bar, on the track as provided in point h), to the third conveyor (A) and consequently to the third device of channel reception (T3);

m)

simultaneously, the third bar is braked by the bar brake (FC) placed at the entrance of the first device for receiving and unloading the bar (T1) and in consequence is unloaded on the plate (PR);

-

he cycle is repeated until the end and to the right and left or vice versa.

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7. System according to any of the preceding claims 1-5, characterized in that said reception and discharge channels of channels are channels obtained on a rotating drum, for reception with the covered channel and subsequent fall of the bar with the discovered channel System according to any of the preceding claims 1-5, characterized in that said channel devices for receiving and unloading bars are fixed channels with a lockable door for receiving bars and an opening door for the fall of the bars.