EP3008415B1 - Transporting apparatus for rolling ingots, use of such a transporting apparatus, and method for transporting rolling ingots - Google Patents

Description

The invention relates to a transport device for rolling ingots, in particular aluminum ingots, the use of such a transport device and a method for transporting rolling ingots.

In the industrial production of aluminum semi-finished products, the aluminum is first subjected to a heat treatment in the form of ingots, in order then to be converted into the desired sheet form in a rolling mill. The heat treatment leads to a warming up and homogenization of the aluminum, which facilitates the rolling process and increases the quality of the semifinished product produced.

It is known to use Barrenstoßöfen for reheating or homogenizing aluminum ingots. Such furnaces are fixed and each comprise an inlet side and an outlet side. In between, rails are longitudinally mounted within the furnace. Usually Barrenstoßöfen comprise two rails that serve as a guide for bar shoes. The ingot shoes are made of cast iron and are sufficiently heat resistant to ensure dimensional stability within the heated bar bender. The ingots to be heated are deposited on these shoes and driven through the oven. In this way, a continuous heating of rolling ingots is possible.

The feeding of the billet bender takes place via a roller table, on which the rolling bars are moved up to the oven. The roller table is set up at right angles to the oven. A feeder, also called "Up-Ender", takes a bar from the roller table and places it on the bar shoes. Once the oven entrance door is open, the ingot shoes with the rolling ingot are pushed into the oven. By the continuous Pushing bar shoes into the oven pushes the ingot or ingots through the oven.

At the exit side, the bar shoes with the rolled bar drawn are pulled out of the oven by a pull-out device. A Abkippvorrichtung, also called "Down Ender", puts the warmed roll bar on a roller table of the rolling mill.

Both the Up-Ender and the Down-Ender are firmly anchored on the hall foundation at the entrance and exit sides of the billet baffle. This means that each Up-Ender or Down-Ender is each assigned to a bar blast furnace. In practice it turns out that the fixed assignment of a pull-out or tilting device to a bar pusher furnace leads to an unfavorable utilization of the pull-out or tilting device. Due to the waiting times that result from the fact that the rolling bars are issued only at intervals from the Barrenstoßofen, resulting in relatively long downtime of the pull or Abkippvorrichtung. At the same time when using multiple Barrenstoßöfen for each Barstoßstoßofen own extract or Abkippvorrichtung required, resulting in higher investment and maintenance costs.

US 4,938,690 A discloses an up-end, which is not firmly anchored, but on rollers parallel to the course of the rails in Barrenstoßofen is movable. In this way, the up-end can be removed from the oven to close an oven door. Another disadvantage is the assignment of an up-Enders to a single Barrenstoßofen, resulting in an unfavorable utilization of the Up-Enders.

The object of the invention is to provide a transport device for rolling bars, which allows for improved utilization and by the investment and maintenance costs of a production line for rolled products can be reduced. The invention is further based on the object of specifying a use of such a transport device and a method for transporting rolling bars.

According to the invention this object is achieved with regard to the device by the subject-matter of claim 1, with regard to the use by the subject-matter of claim 11 and with regard to the method by the subject-matter of patent claim 12.

The invention is based on the idea of specifying a transport device for rolling ingots with at least one carriage. The carriage comprises a tilting frame and a guide frame. The tilting frame has at least one longitudinally movable transport trolley, which comprises at least one rail piece for receiving a bar shoe. The rail section is collinear to a furnace rail positionable to form a rail extension. The guide frame has at least one hook carriage, which is movable substantially parallel to the transport carriage. The hook cart comprises at least one tiltable hook for engagement in the bar shoe.

The invention has several advantages. On the one hand, the carriage allows the assignment of the transport device to a plurality of ovens, in particular Barrenstoßöfen. In this way, the investment and maintenance costs for production facilities for the production of rolled products is reduced. At the same time the utilization of the transport device is increased, so the known from the prior art downtime in the transport of rolling billets from the furnaces to the rolling mill reduced, so that an efficient operation of the transport device and the entire production plant is ensured. On the other hand, the construction according to the invention enables the combination of a pull-out device, namely the hook carriage, with the transport carriage. Thus, the transport device according to the invention combines both the function of pulling out the rolling bar from the Barrenstoßofen, as well as the function of further transport of the rolling ingot to the rolling mill. The known from the prior art, technically complicated transfer of the rolling bar from the extension device to a Abkippvorrichtung is simplified with the transport device according to the invention.

According to the invention, the transport vehicle can be moved transversely, in particular at right angles, to a movement direction of the vehicle. This allows a simple and efficient use of the transport device for the takeover of rolling billets from several bar blast furnaces and the transfer of the Rolling bar to a common rolling mill. If the ingot bumpers are arranged parallel to each other, the method of the trolley and the transversely movable to transport trolleys fast positioning of the transport device in front of the bar pusher is made possible, which releases the next rolling ingot.

In a preferred embodiment of the transport device according to the invention the tilting frame comprises a tilting axis, which is arranged parallel to a direction of movement of the trolley. This arrangement of the tilting axis facilitates the transfer of the rolling bar from the trolley to a rolling mill or a Abkippvorrichtung.

In a further preferred embodiment of the transport device according to the invention, the guide frame is height-adjustable. The height adjustability of the guide frame facilitates the handling or control of the transport device. In particular, the height adjustment of the guide frame allows the lowering or lifting of the hook carriage, preferably in relation to the trolley. The hook carriage can therefore be lowered by means of the height-adjustable guide frame, for example, to make room for a Abkippvorrichtung that takes over the warmed roll bar from the trolley.

The hook carriage and / or the transport vehicle preferably each have an electric drive, in particular a belt drive. It is not excluded that the operation of the hook carriage and / or the trolley takes place electro-hydraulically. The electrical operation is expedient in particular for a simple and process-optimized control of the transport device.

According to a further preferred embodiment of the transport device according to the invention the carriage is movable on rails, which are arranged transversely, in particular at right angles, to a furnace passage direction. The combination of the trolley with rails, which are preferably fixedly mounted on a hall floor or a foundation, on the one hand in terms of energy efficiency of the transport device advantages, and on the other hand favors a relatively low maintenance and repair costs. Moreover, the rail-mounted trolley enables safe and uniform transport of the rolling ingots.

The carriage may comprise two tilting frames, which are arranged on both sides of the guide frame and each having a transport carriage. The two tilting frames are in a particularly preferred manner synchronously driven.

Preferably, the at least two trolleys are movable synchronously with each other. The synchronously transportable transport trolleys ensure safe and uniform transfer of the rolling bar from the billet pusher. The trolleys can be moved up to the bar pusher such that the rail pieces on the oven rails within the Barren Stoßofens abut and thus form an extension of the oven rails. The ingot shoes can be easily passed from the bar pusher to the trolley in this way.

The transfer of the rolling ingot from the billet pusher to the trolley is particularly facilitated by the fact that the guide frame preferably has a longitudinal guide for the hook carriage, which extends in parallel between the at least two trolleys. The hook carriage is thus movable in parallel between the trolley. This arrangement allows the passage of the hook carriage through the trolley, so that the hook of the hook trolley can easily and efficiently grab the bar shoes with the overlying ingot in the bar pusher and pull on the rail section of the trolley. Furthermore, the longitudinal guide arranged between the transport carriage or tilting frame for the hook carriage enables a compact design of the transport device.

The guide frame may include a lifter that is height adjustable with respect to the guide frame. The ejector cooperates with a lever arm of the hook in such a way that the hook can be tilted about an axis of rotation, which is arranged in particular transversely, preferably at right angles, to the direction of movement of the hook carriage. The lifter allows easy and safe operation of the tilting hook. In particular, a release of the hook from the bar shoe is preferably carried out by the lifter, which thus forms a particularly simple and easy to maintain release mechanism.

In a further preferred embodiment of the transport device according to the invention, it is provided that at least the tilting frame, in particular the transport carriage, and / or at least the guide frame, in particular the hook carriage, comprises at least one heat and / or blast shield. Such heat or radiation shields have a positive effect on the life of the device, which is exposed due to the proximity to the furnace outlet side of an increased thermal load. The reliability of the device is thus increased.

According to a secondary aspect, the invention is based on the idea of using the transport device described above for Specify transport of rolling ingots, in particular aluminum ingots, between one or more billet thrusters and a dumping device.

• Bereitstellen einer vorstehend beschriebenen Transportvorrichtung;
• Verlängerung wenigstens einer Ofenschiene, wobei das Schienenstück des Transportwagens kollinear und bündig an die Ofenschiene angelegt wird;
• Betätigung des Hakenwagens derart, dass der Haken einen Barrenschuh greift und auf das Schienenstück des Transportwagens bewegt;
• Längsverschiebung des Transportwagens und Abkippen des Kipprahmens zur Übergabe des Walzbarrens an eine Abkippvorrichtung;

A further subsidiary aspect of the invention relates to a method for transporting billets between one or more furnaces and a rolling mill, comprising the following steps:

• Providing a transport device as described above;
• Extending at least one furnace rail, wherein the rail section of the trolley collinear and flush is applied to the furnace rail;
• Actuation of the hook carriage such that the hook engages a bar shoe and moves on the rail section of the trolley;
• Longitudinal displacement of the trolley and tilting of the tilting frame for transferring the rolling ingot to a Abkippvorrichtung;

Preferably, a further method step comprises the actuation of the hook carriage for transferring the ingot shoe to a cash draw return.

The advantages and effects mentioned in connection with the transport device apply correspondingly to the method according to the invention for transporting rolling bars.

Figur 1:

eine Seitenansicht einer Transportvorrichtung nach einem erfindungsgemäßen Ausführungsbeispiel;

Figur 2:

eine Draufsicht auf die Transportvorrichtung gemäß Figur 1;

Figur 3:

eine Vorderansicht der Transportvorrichtung gemäß Figur 1; und

Figuren 4 bis 14:

eine Seitenansicht der Transportvorrichtung gemäß Figur 1 in unterschiedlichen Verfahrensschritten beim Transport von Walzbarren.

The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying schematic drawings. Show:

FIG. 1:

a side view of a transport device according to an embodiment of the invention;

FIG. 2:

a plan view of the transport device according to FIG. 1 ;

FIG. 3:

a front view of the transport device according to FIG. 1 ; and

FIGS. 4 to 14:

a side view of the transport device according to FIG. 1 in different process steps in the transport of rolling ingots.

As in the side view according to Fig. 1 illustrated, the transport device or the barrow a trolley 1 with a tilting frame 10 and a guide frame 20. The carriage 1 is rail-mounted. Specifically, two rails 2 are provided below the trolley 1, which are firmly connected to a foundation 5, in particular screwed, are. The rails 2 are aligned transversely to a bar blast furnace (not shown), so that the carriage 1 is positionable in front of the outputs of different Barrenstoßöfen, which may be arranged parallel to each other. The furnace exit side or the furnace area is shown in the figures as a dot-dash line. It can be seen that the carriage 1 is anyway located outside the furnace area. The carriage 1 further comprises a plurality of drive units, in particular a travel drive 4 for the carriage 1, a tilting drive 15 for the tilting frame 10, a lifting drive 24 (FIG. Fig. 2 ) for the guide frame 20, a hook drive 29e ( Fig. 2 ) for a hook carriage 21 of the guide frame 20 and a transport drive 16 for a trolley 11 of the tilting frame 10. The traction drive 4 is coupled to at least one wheel 3 of the trolley. The traction drive 4 thus acts via the wheel 3 with the running rail 2 for locomotion of the trolley 1 together. The traction drive 4 is preferably designed as an electric drive, in particular as an electric motor.

The carriage 1 also carries the tilting frame 10. For this purpose, the carriage 1 on a Kippachsenlager 6, which is in the area or specifically above the wheel 3 of the trolley 1, is arranged. In the Kippachsenlager 6 a tilting axis 14 of the tilting frame 10 is pivotally mounted. The tilting axis 14 is preferably aligned parallel to the closer running rail 2 or to the nearer wheel 3, wherein the tilting axis 14 is arranged vertically above the nearer running rail 2 or the nearer wheel 3 of the trolley 1. Spaced from the tilting axis 14 of the tilting frame 10 is pivotally connected to a tilting joint 17. The tilting joint 17 is further coupled to the trolley 1 via a first pivot 17a. A second pivot 17b connects the tilting joint 17 with the tilting drive 15, which is pivotally coupled to the trolley 1. The tilting drive 15 comprises a translatory drive, For example, a linear drive or a lifting cylinder. In particular, the tilting drive 15 may comprise a hydraulic cylinder. It is also possible that the tilting drive 15 has a spindle drive or a rack and pinion drive. In terms of a compact design, it is advantageous if, as in Fig. 1 illustrated, the tilting drive 15 is disposed completely below the tilting frame 10.

The tilting frame 10 further comprises a transport carriage guide 18, which extends in the longitudinal direction of the tilting frame 10, that is substantially perpendicular to the tilting axis 14. The transport carriage guide 18 may comprise, for example, a rail guide. In the trolley guide 18, the trolley 11 is mounted longitudinally displaceable. The trolley 11 is thus 10 movable in the longitudinal direction of the tilting frame. Preferably, the transport carriage 11 has guide rollers (not shown) which engage in the transport carriage guide 18.

The trolley 11 comprises at least one rail carrier 13. Preferably, the trolley 11 has two rail supports 13, as shown in the front view Fig. 3 seen. The rail support 13 has to the furnace side or in the direction of the furnace area on an overhang 13a, which projects beyond the tilting frame 10 when the trolley 11 is moved to the front end position. The front end position is formed by the position at which the trolley 11 is closest to the oven or oven area or projects into the oven. In this case, the transport carriage 11 is arranged substantially vertically above the tilting axis 14. Above the rail carrier 13, a rail piece 12 is arranged, which extends substantially horizontally over the entire length of the rail carrier 13. Preferably, the rail carrier 13 and the rail piece 12 are firmly connected, in particular welded or integrally formed. If, as provided in the present embodiment, two rail supports 13 carry the rail section 12, it is particularly preferred if the rail supports 13 form with the rail section substantially a double-T-beam-like profile. It is also possible that a single rail carrier 13 forms a simple T-beam-like profile with the rail piece 12.

The carriage 1 also carries the guide frame 20, wherein the guide frame 20 via at least one, in particular two, in particular three, in particular four, lifting joints 25 is pivotally coupled. The lifting joints 25 are preferably arranged at a distance from one another, with four lifting joints 25 preferably each two lifting joints 25 forming a pair of lifting levers. The lifting joints 25 or lifting joint pairs are arranged spaced apart from one another in the longitudinal direction of the guide frame 20 in order to ensure that the guide frame 20 is raised or lowered in the direction of the axis. At least one lifting joint 25 or a pair of lifting levers is connected to a lifting drive 24. Preferably, the oven-further Hebegelenkpaar has two lifting joints 25, which are each coupled to a lifting drive 24. The lifting drive 24 may be formed analogous to the tilting drive 15 as a translatory drive. For example, the lifting drive 24 may comprise a linear motor, in particular a lifting cylinder, especially a hydraulic cylinder. The lifting drive 24 is coupled to the trolley 1 and the lifting joint 25 each pivotally. The lifting joint 25 is also pivotally coupled to the carriage 1 via a third pivot 25a and to the guide frame 20 by a fourth pivot 25b.

The guide frame 20 includes a longitudinal guide 23, which may be formed for example as a rail guide or roller guide. In the longitudinal guide 23, a hook carriage 21 is mounted longitudinally displaceable. Preferably, the hook carriage 21 guide rollers (not shown), which cooperate with the longitudinal guide 23 such that the hook carriage 21 along the longitudinal guide 23 of the guide frame 20 is movable, in particular movable, is. As in Fig. 3 good to see, the longitudinal guide 23 is arranged substantially centrally between two transport carriage 11.

According to Fig. 3 the transport device according to the present embodiment, two tilting frame 10, each comprising a trolley 11. The tilting frames 10 are arranged parallel to one another and each have mutually independent tilting drives 15 and transport drives 16. The tilting frame 10 are thus independently operable. By a suitable control, the actuation of the two tilting frame 10 is preferably carried out in a synchronous manner. It is also possible that the tilting frames 11 are mechanically connected to each other, for example by a rigid axle or a rigid cross member, so that the tilting frame 11 are synchronously actuated. In this case, a single tilt drive for both tilting frame 11 may be provided. It is also possible that the transport drives 16 so coupled to each other, that both transport vehicles 11 are moved synchronously. In this case, both a coupling by a corresponding control, as well as a mechanical coupling between the transport drives can be provided, which causes the synchronous movement of the trolley 11. The trolley 11 may also be mechanically coupled to each other, for example by a rigid connection between the trolley 11, so that inevitably results in a synchronous movement of the trolley 11.

The hook carriage 21 comprises a support structure 26 which comprises two landing gear supports 26a and a cross member 26b. The cross member 26b is fixedly connected to the chassis beams 26a, preferably welded. The chassis beams 26a and the cross member 26b together form substantially a double-T-beam-like structure. The chassis supports 26a engage in the longitudinal guide 23 of the guide frame 20, wherein the chassis supports 26a preferably form a roller bearing for casters (not shown), which are arranged within the longitudinal guide 23, in particular within guide rails (not shown), the longitudinal guide 23. The cross member 26b extends according to the front view Fig. 3 in the transverse direction on the trolley 11, in particular on the rail sections 12 of the trolley 11 addition. The cross member 26b thus has a width which is greater than the outer distance of the transport carriage eleventh

The hook carriage 21 further comprises at least two, in particular four, in particular eight, hook carrier 27, which are fixedly connected to the cross member 26b, in particular welded, are. The hook beams 27 extend from the cross member 26b in the direction of the furnace area. The hook carrier 27 thus form an overhang similar to the rail carrier 13 of the trolley 11. Furthermore, the hook supports 27 include a pivot bearing 27a, wherein between two hook carriers 27 and two pivot bearings 27a a rotation axis 28 of the hook 22 is arranged. The hook 22 is thus pivotally connected by the pivot bearing 27a of the hook carrier 27 with the hook carrier 27.

The hook 22 includes a boom 22a adapted to project into the furnace when the hook carriage 21 is located in the forward end position. The boom 22a has a hook tip 22b that is substantially barb-like in shape. The hook tip 22b comprises, in particular, an oblique sliding surface 22c which is connected to a lower surface or edge of the Jib 22a forms an acute angle. In cooperation with the pivot bearing 27a, the sliding surface 22c allows tilting of the hook 22 when the hook 22 is driven against a substantially stationary object such that the sliding surface 22c slides along the object, whereby the hook 22, in particular the boom 22a, about the axis of rotation 28 is tilted down. The hook tip 22b further includes a front stop 22d opposing the sliding surface 22c and defining the barb-like shape of the hook tip 22b. In use, the front stop 22d engages a bar shoe 40 so that the bar shoe 40 can be pulled out of the oven. Further, the boom 22a includes a rear stop 22e, which is adapted for application to a bar shoe 40 and advancing the ingot shoe 40. The front and rear stops 22d, 22e are arranged substantially perpendicular to the longitudinal extent of the boom 22a.

The hook 22 has a lever arm 22f as a kind of counterweight or counterweight to the boom 22a, the lever arm 22f starting from the axis of rotation 28 away from the furnace area, ie towards the rear. The lever arm 22f is oriented substantially parallel to the boom 22a, with the lever arm 22f being located higher in relation to the boom 22a. This means that the lever arm 22 f is formed substantially above the rotation axis 28. As in Fig. 3 can be seen, the lever arm 22f engages in the transverse direction of the trolley 11 and the rail section 12 and forms a connection between two mutually parallel arms 22a and hooks 22. An internal lever arm 22f, ie a the chassis support 26a and the longitudinal guide 23rd facing lever arm 22 f further includes a finger 22 g, which extends vertically downwards in the direction of the trolley 1. The finger 22g has a rotatably mounted roller 22h, which cooperates in operation with a later explained in more detail lifter 30 for tilting the hook 22.

The lifter 30 is coupled to the guide frame 20 via a hinge assembly 32. The lifter 30 includes two Aushebeschienen 33, which are arranged on both sides of the guide frame 20, as in the Figures 2 and 3 to recognize. The Aushebeschienen 33 are each pivotally connected to a hinge assembly 32, wherein the hinge assembly 32 forms a kinematic chain between the Aushebeschiene 33 and a lifting drive 31. According to Fig. 2 is recognizable that the lifter 30 has a common Aushebeantrieb 31, which is directly coupled to the hinge assembly 32. The hinge assembly 32 is connected to another hinge assembly 32 by a hinge shaft 34 so that the lift actuator 31 acts on both hinge assemblies 32 and thus on both lift rails 33. The lifting drive 31 may analogously to the tilting drive 15 have a translational drive, in particular a linear drive or a lifting cylinder, for example a hydraulic cylinder. The Aushebeschiene 33 extends in the longitudinal direction of the guide frame 22, wherein the Aushebeschiene 33 has a longitudinal extent, which corresponds substantially to the longitudinal extent of the tilting frame 10. The lifting rail 33 further includes a front end 33a and a rear end 33b, with the front and rear ends 33a, 33b each forming an inclined sliding surface. This ensures that the roller 22h of the hook 22 is basically arranged above or on the lifting rail 33 during movement of the hook carriage 21 in a travel range which corresponds to the longitudinal extent of the tilting frame 10.

The operation of the transport device or the ingot car is described below with reference to the in the FIGS. 4 to 14 explained functional sequence explained in more detail:
It is advantageous if the transport device is signal-connected via a corresponding control or regulating unit with the control of the bar or several Barrenöfen. The below-explained timing steps of the transport device thus preferably determined according to the overall work processes within a plant which comprises ingot bumpers and a rolling mill feed, between which the transport device acts.

When a bar blast furnace is ready to dispense a reheated and homogenized roll bar 60, the transport device, in particular the trolley 1, is positioned in front of the furnace concerned by actuation of the travel drive 4 by a corresponding signal to the transport device. The trolley 11 is moved in the trolley guide 18 of the tilting frame in the front end position, so that the trolley 11 is positioned directly in front of the open oven, as in Fig. 4 shown. The height of the rail section 12 of the trolley 11 is dimensioned such that the rail section 12 forms an extension of a stove rail (not shown).

The laid in the oven rails on which the bar shoes 40 are pushed through the oven are thus extended by the rail sections 12 of the trolley 11. In the first method step, the hook carriage 21 is also driven into the front end position, so that the hook 21, in particular the boom 22a engages in the oven. During the forward movement of the hook carriage 21 into the oven, the hook tip 22b is moved against the bar shoe 40, in particular a lateral projection 41 of the bar shoe 40, so that the sliding surface 22c slides obliquely downwards along the projection 41 and causes the hook 22 to tilt. As soon as the hook tip 22b has passed the projection 41, the hook 22 tilts back into the rest position, so that when the hook carriage 21 moves back towards the rear end position, the front stop 22d engages the projection 41 and the bar shoe 40 engages in this way the trolley 11, in particular the rail pieces 12, is pulled.

In this regard, it should be noted that each two hooks 22, as in FIG. 2 to recognize form a pair of hooks, wherein the distance between the hooks 22 of a pair of hooks is selected such that the hooks 22 are each laterally on a bar shoe 40 can be arranged and each of the hooks 22 engages with a lateral projection 41 of the bar shoe 40.

The operation or movement of the trolley 11 and the hook carriage 21 is preferably carried out by belt or chain drives. The belt drive of the hook carriage 21 is in the FIGS. 4 to 14 each represented by a thicker dot-dash line and the belt drive of the trolley 11 by a thinner dot-dash line.

The hook carriage 21 is driven by a first belt 29 which is connected to a drive pinion 29a. The first belt 29 also extends over three further pinions 29b, 29c, 29d. In this case, two first guide pinions 29c, 29d in the longitudinal direction of the guide frame 20 are arranged spaced apart such that the belt 29 between these two pinions 29c, 29d forms a substantially horizontal course along which the hook carriage 21 is movable. For this purpose, the hook carriage 21 with the belt 29 is firmly connected. The drive pinion 29a is further coupled to a hook drive 29e disposed substantially centrally in the guide frame 20, as in FIG Fig. 2 shown. How out Fig. 2 also seen, the hook carriage 21 on two belt drives, which are coupled to the common hook drive 29 e.

The belt drive of the trolley 11 is constructed similarly. In particular, the belt drive of the trolley 11 has a second belt 19, which is connected to a motor pinion 19 a. The second belt 19 extends over a plurality of further pinions 19b, 19c, 19d, 19e, wherein two of the further pinion 19d, 19e spaced apart on the tilting frame 10 are arranged so that the second belt 19 between sprockets 19d, 19e spans substantially horizontally. The length of the tensioned belt between the pinions 19d, 19e is adapted such that the transport carriage 11 is movable from the front end position to the rear end position along the transport carriage guide 18 of the tilting frame 10. For this purpose, the trolley 11 is firmly connected to the second belt 19. By the belt arrangements or belt drives of the hook carriage 21 and the transport carriage 11, the rotational movements of the transport drive 16 and the hook drive 29e are each translated into a translational longitudinal movement, which leads to a method of the trolley 11 and the hook carriage 21.

The hook carriage 21 coupled to the bar shoe 40 by the hook 22 is moved in the second method step by the first belt 29 or the hook drive 29e in the direction of the rear end position along the longitudinal guide 23 of the guide frame 20, so that the bar shoe 40 on the rail section 12 of Transport cart 11 is pulled. Once the bar shoe 40 is placed on the rail piece 12, the movement of the hook carriage 21 is stopped ( Fig. 5 ).

Hereinafter, the lifter 30 is used to release the hook 22 from the bar shoe 40, as in FIG Fig. 6 shown. For this purpose, the kinematic chain formed by the joint arrangement 32 is actuated via the lifting drive 31, which causes the lifter 30 to be raised. In this case, the lifter 30 lifts the roller 22h or the finger 22g and thus the lever arm 22f upward, whereby due to the rotation axis 28, the hook tip 22b is lowered. The engagement of the hook 22 in the bar shoe 40 and the lateral projection 41 of the bar shoe 40 is released. The lifter 30 remains raised, at the same time the hook carriage 21 is moved further towards the rear end position. Through the roller 22h and the Aushebeschiene 33 is thereby achieved that the hook 22 remains in the tilted position, at least until the hook 22 is spaced from the bar shoe 40 or dolly 11. Once the finger 22g or roller 22h slides off the lifter 30, the hook 22 tilts back to the rest position in which the boom 22a is oriented substantially horizontally.

In the three first method steps or tract steps described above, the guide frame 20 is arranged in an elevated position. This means that the guide frame 20 is driven by the lifting drive 24 in the upper end position.

In the following step, the in Fig. 7 is shown, the guide frame 20 is lowered or moved to a lower end position. For this purpose, the lifting drive 24 is actuated, whereby the lifting joint 25 rotates about the fourth pivot 25b and causes the lowering of the guide frame 20. Furthermore, in the fourth method step or clock step, the carriage 1 is actuated in order to move the transport device to a tilting device 70. For the further method steps, it is thus expedient to position the transport device in front of a tilting device 70. The tilting device 70 is in the FIGS. 7 to 13 shown as a hook-like or shovel-like dump truck. Preferably, the Abkippvorrichtung 70 serves to store the rolling bar 50 on a scroll or a rolling mill feed.

In order to feed the rolling bar 50 to the tilting device 70, the transport carriage 11 is moved by the corresponding belt drive, in particular the second belt 19, in the direction of the rear end position. Preferably, the transport carriage 11 is positioned substantially centrally with respect to the transport carriage guide 18 in this method step, so that there is sufficient free space laterally around the transport carriage 11 for transferring the rolling bar 50 to the tilting device 70. The trolley 11 is thus removed from the oven, so that the oven door can be closed.

In the next step according to Fig. 8 the transfer of the rolling bar 50 from the trolley 11 to the Abkippvorrichtung 70. For this purpose, the trolley 11 is further in the direction of Abkippvorrichtung 70, in particular to the rear end position of the trolley guide 18, driven. The tilting device 70 engages between the two transport carriage 11, the are arranged parallel to each other, as in Fig. 2 shown. In this context, it is expressly pointed out that it is particularly expedient if the transport carriage 11 are synchronously actuated or controlled.

The transfer of the rolling bar 50 to the tilting device 70 is in Fig. 9 shown. In this method step, the tilting frame 10 is tilted by actuation of the tilting drive 15, wherein the tilting frame 10 rotates about the tilting axis 14. By the actuation of the tilting drive 15 in particular, a rotation of the tilting joint 17 about the first pivot 17 a, whereby the tilting of the tilting frame 10 is effected. Due to the tilting movement of the tilting frame 10, the rolling bar 50 is deposited on the tilting device 70, wherein the bar shoes 40 remain on the transport carriage 11. The tilting frame 10 initially remains in the tilted position, wherein the transport carriage 11 is moved back into the front end position or the transfer position.

In the next step in accordance with Fig. 10 the tilting device 70 is tilted or pivoted to bring the upright taken roll bar 50 in a substantially horizontal position or store with a flat side on a scroll or a rolling mill feed. Meanwhile, the carriage 1 is positioned in front of a curb return 80, with the guide frame 20 raised by the lift drive 24 to the upper end position. The trolley 11 is moved forward to the front end position, so that the rail pieces 12 form a common, elongated guide for the bar shoes 40 with return rails 81 of the Barrenschückückführung 80.

As in Fig. 11 2, the hook carriage 21 is also moved to the front end position, the hook engaging in the bar shoe 40 disposed on the trolley 11. As in the case of gripping the ingot shoe 40 in the furnace, the hook carriage 22 also grips the hook 22 substantially automatically by the sliding surface 22c of the hook tip 22b sliding along the projection 41 of the ingot shoe 40 and the tilting movement of the hook 22 triggers. The rear stop 22e of the boom 22a, which is part of the hook 22, comes in this process in abutment with the lateral projection 41 of the bar shoe 40, so that in the further ancestor of the hook carriage 21 of the Bar shoe 40 from the rail section 12 of the trolley 11 is pushed onto the return rail 81 of the Barrenschückückführung 80.

Once the bar shoe 40 is located in the barrel return 80, as shown in FIG Fig. 12 illustrated, the lifter 30 is actuated to release the hook 22 from the bar shoe 40. The operation of the boom 30 is analogous to the method step described above, in which the hook 22 is released after pulling the ingot shoe 40 out of the oven from the bar shoe 40. Accordingly, the hook carriage 21 is moved back, wherein the hook 22 remains in the tilted position due to the raised lifter 30 until the hook carriage 21 is far enough away from the Barrenschuhrückführung 80, the roller 22h and the finger 22g from the Aushebeschiene 33 slides down and thus the automatic Reset the hook 22 releases in the rest position. Preferably, the hook carriage 21 is moved to the rear end position.

As in Fig. 13 shown, in a next step, the lowering of the guide frame 20 to the lower end position. Further, the trolley 11 is moved back, preferably to about the middle of the trolley guide 18. The hook carriage 21 is still in the rear end position. In this configuration, the operation of the trolley 1 between the ovens or between a furnace and the tilting device 70 is permitted. Preferably, in this configuration, the truck 1 is operated to position the transport device in front of a furnace which discharges the next heated and homogenized rolling ingot 50.

Once the carriage 1 or the transport device is positioned in front of the furnace, which outputs the next rolling bar 50, the transport device is brought into the basic position for the next clock sequence. For this purpose, the hook carriage 21 is moved to the waiting position. The waiting position of the hook carriage 21 is according to Fig. 14 achieved when the boom 22a of the hook 22 is disposed substantially laterally of the trolley 11 and below the rail section 12. The guide frame 20 is preferably arranged in the basic position in the lower end position, ie in the lowered position. Once the oven is ready to dispense the next rolling bar 50, the oven door is opened and immediately the guide frame 20 is raised to position the trolleys 11 on the oven rails on the one hand and the hook 22 and boom 22a, respectively, into the oven and the Rolling bar 50 with the help of the ingot shoes 40, as in Fig. 4 shown.

• Transport von Walzbarren 50 und Gleitschuhen bzw. Barrenschuhen 40;
• Verlängerung der im Ofeninneren angebrachten Ofenschienen durch den Transportwagen 11, der als mobiles Schienenstück und als Zwischenlagerplatz für den herausgezogenen Walzbarren 50 dient;
• Herausziehen des Walzbarrens 50 aus dem Ofeninnenraum mit Hilfe des Hakenwagens 21;
• Übergabe des Walzbarrens 50 an die Abkippvorrichtung 70 durch einseitiges Absenken bzw. Kippen des Kipprahmens 10;
• Übergabe der leeren Gleitschuhe bzw. Barrenschuhe an die Barrenschuhrückführung 80;
• Aufnahme von statischen und dynamischen Kräften sowie Momenten während der Manipulation an den Walzbarren;
• Positionierung und Arretierung des Fahrwagens 1 bzw. allgemein der Transportvorrichtung; und
• synchronisierte Bewegung der Transportwagen 11.

The transport device or the barrow thus has the following core functions:

• Transport of rolling bars 50 and sliding shoes 40;
• Extension of the oven rails mounted in the oven rails by the trolley 11, which serves as a mobile rail section and as an intermediate storage space for the extracted roll bar 50;
• Pulling out the rolling bar 50 from the furnace interior by means of the hook carriage 21;
• Transfer of the rolling bar 50 to the Abkippvorrichtung 70 by unilateral lowering or tilting of the tilting frame 10;
• Transfer of the empty sliding shoes or bar shoes to the cash counter return 80;
• Absorption of static and dynamic forces as well as moments during the manipulation of the rolling ingot;
• Positioning and locking of the vehicle 1 or in general of the transport device; and
• synchronized movement of the trolley 11.

For positioning and locking the transport device or the ingot carriage, the carriage 1 preferably corresponding devices, such as brakes, on. Furthermore, it is advantageous if the transport device comprises heat or blasting shields which minimize the thermal effects on the mechanical and electrical components. The heat or blasting shields are preferably arranged in the front region, that is on the furnace side, of the transport device. For example Radiation shields or heat shields can be assigned to the tilting frame, the guide frame and the carriage on the furnace side.

LIST OF REFERENCE NUMBERS

1

trolley

2

running rail

3

wheel

4

traction drive

5

foundation

6

Kippachsenlager

10

tilting frame

11

Dolly

12

rail section

13

rail support

13a

overhang

14

tilt axis

15

tilt drive

16

transport drive

17

tilting joint

17a

first rotary joint

17b

second pivot

18

Dolly leadership

19

second belt

19a

pinion

19b, 19c, 19d, 19e

more sprockets

20

guide frame

21

hook trolley

22

hook

22a

boom

22b

hook tip

22c

sliding surface

22d

front stop

22e

rear stop

22f

lever arm

22g

finger

22h

role

23

longitudinal guide

24

lifting drive

25

lifting joint

25a

third pivot

25b

fourth swivel joint

26

supporting structure

26a

suspension carrier

26b

crossbeam

27

hook carrier

27a

pivot bearing

28

axis of rotation

29

first belt

29a

pinion

29b, 29c, 29d

more sprockets

29e

hook drive

30

Lifters

31

Aushebeantrieb

32

joint arrangement

33

Aushebeschiene

33a

front end

33b

rear end

34

propeller shaft

40

bars Shoe

41

head Start

50

sheet ingot

70

tilt-back

80

Barren shoe repatriation

81

Return rail

Claims (13)

1. A transporting apparatus for rolling ingots (50), having at least one travelling carriage (1), which comprises a tilting frame (10) and a guide frame (20), wherein the tilting frame (10) comprises at least one longitudinally displaceable transporting carriage (11) with a rail section (12) for receiving an ingot rest (40) and, for the purpose of forming a rail extension, can be positioned collinearly in relation to a furnace rail, and the guide frame (20) has at least one hook carriage (21), which can be moved substantially parallel to the transporting carriage (11) and comprises at least one tiltable hook (22) for engaging in the ingot rest (40), and wherein the transporting carriage (11) can be moved transversely to a movement direction of the travelling carriage (1).
2. The transporting apparatus according to Claim 1,
   characterised in that
   the tilting frame (10) comprises a tilting axle (14) which is arranged parallel to a movement direction of the travelling carriage (1).
3. The transporting apparatus according to at least one of Claims 1 to 2,
   characterised in that
   the guide frame (20) is height-adjustable.
4. The transporting apparatus according to at least one of Claims 1 to 3,
   characterised in that
   the hook carriage (21) and/or the transporting carriage (11) each have an electrical drive, in particular belt drive.
5. The transporting apparatus according to at least one of Claims 1 to 4,
   characterised in that
   the travelling carriage (1) can be moved on travelling rails (2) which are arranged transversely, in particular at right angles, to a furnace passage direction.
6. The transporting apparatus according to at least one of Claims 1 to 5,
   characterised in that
   the travelling carriage (1) comprises two tilting frames (10) which are arranged on both sides of the guide frame (20) and each have a transporting carriage (11).
7. The transporting apparatus according to Claim 6,
   characterised in that
   the at least two transporting carriages (11) can be moved synchronously to each other.
8. The transporting apparatus according to Claim 6 or 7,
   characterised in that
   the guide frame (20) has a longitudinal guide (23) for the hook carriage (21) which extends parallel to at least two transporting carriages (11).
9. The transporting apparatus according to at least one of Claims 1 to 8,
   characterised in that
   the guide frame (20) comprises a lifter (30) which is height-adjustable in relation to the guide frame (20) and interacts with a lever arm (22f) of the hook (22) such that the hook (22) can be tilted about a rotation axis (28).
10. The transporting apparatus according to at least one of Claims 1 to 9,
    characterised in that
    at least the tilting frame (10), in particular the transporting carriage (11), and/or the guide frame (20), in particular the hook carriage (21), comprises at least one heat- and/or radiation-protection shield.
11. The use of the transporting apparatus according to any one of the preceding claims for transporting rolling ingots (50), in particular aluminium rolling ingots, between one or more ingot pusher furnaces (60) and a tilting apparatus (70).
12. A method for transporting rolling ingots (50) between one or more furnaces and a rolling mill, comprising the following steps:

    - providing a transporting apparatus according to one of Claims 1 to 10;

    - extending at least one furnace rail, wherein the rail section (12) of the transporting carriage (11) is placed collinearly to and flush with the furnace rail;

    - actuating the hook carriage (21) such that the hook (22) grips an ingot rest (40) and moves it onto the rail section (12) of the transporting carriage (11) ;

    - longitudinally displacing the transporting carriage (11) and tilting the tilting frame (10) down to transfer the rolling ingot (50) to a tilting apparatus (70).
13. The method according to Claim 12,
    characterised in that
    a further method step comprises actuating the hook carriage (21) to transfer the ingot rest (40) to an ingot rest return (80).

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