Coiler furnace and method for recovering the trailing end of a metal product wound inside the coiler furnace

Abstract

The coiler furnace (1) comprises an insulated casing (2) that partitions an internal chamber (3) of the furnace; a winding device (4) for winding up the product, which is located inside the internal chamber (3) and has a winding drum (5) provided with a receiving port (6) for receiving the leading edge of the product; an opening (7) provided at the bottom of the casing (2) for the product to enter and exit the casing; and at least one trolley (8) that is capable of translational movement laterally with respect to the product transport direction. The at least one trolley (8) is provided with a first section (9) configured to take an operating position below the casing (2) at the opening (7) and a corresponding standby position provided to the side of the operating position; and a second section (10) configured to take a corresponding standby position when the first section (9) takes the operating position, and to take the operating position when the first section (9) takes the corresponding standby position.

Description

Technical Field

[0001] The present invention preferably relates to a coiler furnace that can be used upstream and downstream of a reversible hot rolling mill, such as a Steckel rolling mill, for example, and a related method for recovering the trailing end of a metal product wound in the coiler furnace.

Background Art

[0002] In a reversible rolling plant, various coiler furnaces are known for storing hot-rolled metal products during a continuous rolling process.

[0003] Generally, a reversible rolling plant includes at least one reversible rolling stand having, for example, work rolls and backup rolls, and coiler furnaces disposed on both sides of the at least one reversible rolling stand for alternately winding and unwinding a hot-rolled product passing through at least one rolling stand while changing the rolling direction.

[0004] Each coiler furnace includes a casing. The casing has an outer metal wall and an inner insulating wall, partitions the interior of the furnace, and retains the heat of the material being rolled as much as possible.

[0005] In the lower region of the coiler furnace, a sealable opening is provided for the hot-rolled product to gradually enter and gradually exit. The sealable opening faces one or more reversible rolling stands. The opening can be selectively closed by a guide flap during the process of heating the coiler furnace and during a break in operation. The guide flap is usually actuated by a drive system (for example, a hydraulic drive).

[0006] Each coiler furnace is provided inside with a device for winding a metal product (for example, a strip). Such a winding device includes a winding drum. The winding drum is coaxially connected to a shaft whose ends penetrate the front and rear walls of the casing and are rotatably supported by support bearings outside the coiler furnace. The shaft is connected to reversible rotation drive means.

[0007] The winding drum has a substantially slit-shaped receiving opening in the winding surface area for receiving the leading edge of the hot-rolled product. The hot-rolled product leaves the rolling stand, passes through the roller table, and is then guided into the furnace by a tilting guide flap to reach the winding drum. The leading edge of the product enters the slit provided in the cavity between the shaft and the winding drum, and then, as the shaft begins to rotate, the trailing portion of the steel strip begins to be wound onto the outside of the winding drum. As a result, the leading edge of the product inserted between the shaft and the steel strip being wound is fixed in place.

[0008] The guide flaps can preferably be pivotally supported to one another. In this case, both flaps are connected by a common hinge and are rotatable about the hinge.

[0009] During the winding and unwinding operations of the hot-rolled product, the first guide flap cooperates with the roller table, while the second guide flap is directed towards the receiving end of the winding drum. Thus, these two guide flaps form a deflection device for deflecting the product, thereby determining the path of the hot-rolled product from the roller table to the receiving end of the winding drum, and conversely, the path of the hot-rolled product from the winding drum to the roller table.

[0010] During the winding and unwinding operations of the hot-rolled product, the product is alternately switched between two coiler furnaces located upstream and downstream of at least one rolling stand, allowing the strip to be recovered and sent to the next rolling pass. The trailing end of the product is kept suitably gripped by pinch rolls adjacent to the coiler furnace.

[0011] Unfortunately, when a product entering the coiler furnace is wound and defined as a coil, the trailing end of the product may pass over the pinch rolls and freely enter the furnace, hindering production. This is because the trailing end cannot be recovered by the corresponding pinch rolls. To attempt to unwind the product, it is possible to rotate the winding drum in the opposite direction to the winding rotation to check whether the trailing end can unwind and return to the pinch rolls on its own. However, in many cases, the trailing end is not in a favorable position for unwinding and discharging the product from the furnace and may get caught on the internal structures of the coiler furnace.

[0012] Attempts to properly retrieve the trailing end of the product to guide it out of the furnace can cause entanglement within the coiler furnace. Furthermore, the leading edge of the product may unintentionally protrude outward from the receiving port, i.e., the inside of the winding drum, resulting in a spring effect that expands the coil's diameter and reduces friction with the winding drum. This necessitates worker intervention to empty the coiler furnace.

[0013] In any case, this interrupts rolling and winding, making it considerably difficult to remove the hot-rolled product from the furnace.

[0014] In practice, in these cases, production must be stopped, the coiler furnace powered off and allowed to cool, and then the product must be cut into sections and removed until the remaining coil can be taken out of the furnace. All of this results in a production shutdown of at least two days and greater problems related to operator safety.

[0015] Therefore, there is a need to develop an innovative coiler furnace and to safely and automatically retrieve the trailing end of the wound product. [Overview of the project]

[0016] The object of the present invention is to develop a coiler furnace configured to enable easy retrieval of the trailing end of a wound product in a safe and automatic manner.

[0017] A further object of the present invention is to develop a method that enables the automatic retrieval of the trailing end of a coiled product in a coiler furnace and the easy unwinding of the coil toward a reversible rolling mill.

[0018] The present invention achieves at least one of its objectives and other objectives that may become apparent in light of the description herein by means of a coiler furnace, in particular a coiler furnace for winding metal products from a reversible rolling mill. In particular, coil furnaces that wind metal products from reversible rolling mills are An insulated casing partitions the internal chamber of the furnace, A winding device for winding up the product, comprising a winding drum positioned within the internal chamber and having a receiving port for receiving the leading edge of the product, An opening is provided at the bottom of the casing for the product to enter the casing and exit the casing, The system comprises at least one trolley capable of translational movement laterally with respect to the transport direction of the product, The aforementioned at least one trolley includes: A first section is configured to take an operating position below the casing and a corresponding standby position located to the side of the operating position in the opening, A second section is provided, configured such that when the first section takes the operating position, it takes a corresponding standby position, and when the first section takes the corresponding standby position, it takes the operating position. The aforementioned Section 1 is, When the first section is in the operating position, a roller table for transporting the product along the transport direction, The device includes a deflection device fixed to the roller table for deflecting the product from the roller table to the winding drum or in the opposite direction when the first section is in the operating position, or for closing the opening when the deflection device is in the second operating position, The second section has an arm with a tiltable pressing component at a first free end, the arm being operable to contact the product wound on the winding drum at a first contact position by the tiltable pressing component when the second section assumes the operating position.

[0019] A further aspect of the present invention relates to a method for automatically retrieving the trailing end of a product wound around a drum inside the coiler furnace. This delicious, a) A step of translating the first section from the operating position to the corresponding standby position, b) A step of translating the second section from the corresponding standby position to the operating position, c) A step of rotating the arm of the second section and bringing the tiltable pressing component into contact with the product wound on the winding drum at the first contact position, d) The step of rotating the winding drum in the same direction as the winding direction until the rear end of the wound product passes over the tiltable pressing component.

[0020] Alternatively, a method for automatically retrieving the trailing end of the product wound around the drum inside the above-mentioned coiler furnace is: a) A step of rotating the winding drum in the same direction as the winding direction until the rear end of the wound product reaches the area in the opening, b) A step of moving the second pressing component through the through portion provided through the casing from a corresponding standby position, i.e., a state in which at least a portion is located outside the casing, to a corresponding operating position inside the casing, until the second pressing component contacts the product wound on the winding drum at a contact position above the rear end; c) The step of rotating the arm of the second section to the corresponding operating position so that the tilting pressing component contacts the product wound on the winding drum at a further contact position, with the rear end located between the contact position and the further contact position.

[0021] Advantageously, when the rear end of the product passes through the pinch roll and freely enters the furnace, the coil furnace which is the object of the present invention and the method for recovering the rear end inside thereof enable the rear end to be automatically recovered and guided to a suitable position for unwinding the product and discharging it from the furnace.

[0022] This prevents the rear end of the product from getting caught on the internal structure of the coil furnace, and / or the entanglement of the product in the coil furnace, and / or the risk that the front end of the product inadvertently exits from the inlet of the take-up drum. If these occur, a spring effect that expands the coil of the product occurs, the friction between the product and the take-up drum decreases, and thus it becomes necessary for an operator to intervene to empty the coil furnace.

[0023] Advantageously, by eliminating all these possible disadvantages, compared with the prior art solutions, it is not necessary to stop production for at least two days to stop the coil furnace, cool it, and then cut and remove the product in several parts until it is possible to take out the remaining coil from the furnace.

[0024] Therefore, the technical solution of the present invention also avoids problems related to the safety of the operator.

[0025] Further features and advantages of the present invention will become even more apparent in light of the detailed description of exemplary but non-exclusive embodiments.

[0026] The dependent claims describe specific embodiments of the present invention.

Brief Description of the Drawings

[0027] The description of the present invention is made with reference to the following accompanying drawings showing non-limiting examples. [Figure 1] It is a cross-sectional view of the coil furnace according to the present invention in the first operating position. [Figure 2] It is a cross-sectional side view of the coil furnace of FIG. 1. [Figure 3a]This is a cross-sectional view of the coiler furnace at a second operating position where the trailing end of the wound-up product is in an unsuitable position for unwinding. [Figure 3b] This is a cross-sectional view of the coiler furnace in a second operating position where the trailing end of the wound product is in a suitable position for unwinding. [Figure 4] Figure 3a is a side view cross-sectional view of the coir furnace. [Figure 5] This is a cross-sectional view of the coiler in its third operating position. [Figure 6] This is a schematic diagram of a reversible rolling mill equipped with two coiler furnaces.

[0028] Identical reference numerals and letters in drawings refer to the same element or component. [Modes for carrying out the invention]

[0029] Referring to the drawings, an example of a coiler furnace for winding metal products such as strips coming from a reversible hot rolling mill (e.g., a Steckel rolling mill) during a continuous rolling process is shown.

[0030] The reversible hot rolling mill schematically shown in Figure 6 comprises at least one rolling stand 30 (for example, one equipped with a work roll 31 and a support roll 32) and coiler furnaces 1 positioned on both sides of the at least one reversible rolling stand 30, which alternately wind up and unwind the hot-rolled product as it passes through the at least one rolling stand 30 while the rolling direction changes.

[0031] A roller table 34 is provided between the rolling mill stand 30 and each coiler furnace 1. The roller table is provided with at least one pinch roll 33 positioned close to the coiler furnace to grip the trailing end of the metal product wound in the coiler furnace, collect the product, and send it to the next rolling process. When the product is sent to the next rolling process, what was the trailing end of the product becomes the leading end.

[0032] As shown in Figure 1, at least one deflection roller 44 guides the product being wound between the pinch roll 33 and the winding drum 5. The deflection roller can be attached to one end of a swinging arm pivotally supported by a fixed structure (for example, the fixed structure of the pinch roll 33).

[0033] Figure 1 shows the deflection roller 44 at two different positions, indicated by solid and dotted lines. In particular, the deflection roller 44 can move from a position corresponding to the minimum diameter of the coil (dotted line position) to a position corresponding to the maximum diameter of the coil wound in the furnace (solid line position), and maintains constant tension on the product by taking an intermediate position as the winding of the product gradually progresses.

[0034] In all embodiments of the present invention, the coir furnace is An insulated casing 2 partitions the internal chamber 3 of the furnace to retain heat from the material being rolled, A winding device 4 for winding up a product, having a winding drum 5 positioned inside an internal chamber 3 and provided with a receiving opening 6 (for example, a slit shape) for receiving the leading edge of the product, An opening 7 for the product located at the bottom of the casing 2, The system includes at least one trolley 8 that is capable of translational movement laterally with respect to the product transport direction.

[0035] At least one trolley 8 is further, The first section 9 is configured to take an operating position below the casing 2 in the opening 7 (Figures 1-2) and a corresponding standby position located to the side of the operating position (Figure 4), The system includes a second section 10 configured such that when the first section 9 takes the operating position it takes the corresponding standby position (Figure 2), and when the first section 9 takes the corresponding standby position it takes the operating position (Figures 3 to 5).

[0036] To the advantage, Section 9 of the first section is, When the first section 9 is in the operating position (Figures 1-2), a roller table 11 for transporting the product along the transport direction, It is equipped with a deflection device 12 attached to a roller table 11, This deflection device 12 operates when the first section 9 is in the operating position (Figures 1-2). At the first operating position of the deflection device 12 (the position shown by the solid line in Figure 1), the product is deflected from the roller table 11, i.e., the pinch roll 33, to the winding drum 5, or in the opposite direction. Alternatively, it is for closing the opening 7 at the second operating position of the deflection device 12 (the position shown by the dotted line in Figure 1). On the other hand, Section 2, Part 10 (Figures 3a-3b) is, The second section 10 has an arm 13 preferably pivotally supported at one end, A tiltable pressing component 14 is provided at its free end. When the second section 10 takes the operating position, the pressing component 14 is configured to contact the product wound on the winding drum 5 at the first contact position.

[0037] In a preferred variant of the present invention, the pressing component 14 is a tilting body having two ends configured to contact two different points on the product wound on the winding drum 5.

[0038] For example, a driven or motor-driven roller 18 is provided at the first end of the two ends. On the other hand, a sharp member 19 is provided at the second end of the two ends.

[0039] A drive mechanism 20 (for example, hydraulic) may be provided to lift or lower the arm 13, and preferably is integrated with the second section 10 of at least one carriage 8.

[0040] Preferably, the casing 2 of the coiler furnace has an outer metal wall 27 and an inner insulating wall 28 made of, for example, a refractory material.

[0041] In a preferred modification, the deflection device 12 has guide flaps 40, 41 preferably hinged to each other. Both flaps 40, 41 are pivoted by at least one hinge 42 and configured to tilt around the hinge. The guide flaps 40, 41 are operable by a drive system, such as a hydraulic drive.

[0042] In the steady state of the winding and unwinding operations of the hot-rolled product, the first guide flap 41 cooperates with the roller table 11, and at the same time, the second guide flap 40 is directed toward the receiving port 6 of the winding drum 5. Therefore, these two guide flaps 40 and 41 form a path for the hot-rolled product from the roller table 11, and thus from each pinch roll 33, to the receiving port 6 of the winding drum 5, and conversely, form a path from the winding drum 5 to the roller table 11 and pinch roll 33.

[0043] During the heating process of the coiler furnace 1 and when the coiler furnace is shut down, the guide flaps 40 and 41 are rotated around the hinge 42 to close the opening 7 of the casing 2.

[0044] Preferably, the winding drum 5 is oriented substantially parallel to the direction of conveying the metal product, and both ends are coaxially connected outward on a shaft 43 that penetrates two opposing walls of the casing 2. These ends of the shaft 43 are rotatably supported outside the coiler furnace 1 by appropriate support bearings. The shaft 43 is connected to a reversible rotation drive means.

[0045] The leading edge of the hot-rolled product coming from the rolling stand 30 passes through the roller table 34 and pinch rolls 33, and then, guided by the tilting guide flaps 40 and 41, moves from the roller table in the furnace to the winding drum 5, where the leading edge of the product then enters a slit in the drum, which is located in the cavity between the inner surface of the winding drum and the shaft 43. The shaft 43 then begins to rotate, causing the continuous strip portion to begin winding around the outside of the winding drum 5, securing the leading edge of the product within the cavity.

[0046] In a preferred modification, further, A second pressing component 15 is configured to take a corresponding standby or retracted position (preferably outside the casing 2) and a corresponding operating or forward position inside the casing 2, The second pressing component 15 is configured to pass through in order to translate from a corresponding standby position to a corresponding operating position (and vice versa) and to contact the product wound on the winding drum 5 at a second contact position above the first contact position of the tilting pressing component 14, and is provided with a passing section 16 that penetrates the casing 2 (Figures 1, 3, and 5).

[0047] The second pressing component 15 preferably translates arbitrarily along a direction perpendicular to a straight line tangent to the circumference defined by the final coil of the wound strip. In the embodiment shown in Figure 3a, the translation direction is longitudinal and inclined with respect to the horizontal plane in order to maintain orthogonality with respect to the wound strip.

[0048] When the second pressing component 15 presses toward the winding drum 5 at its operating position, i.e., the second contact position, and the tilting pressing component 14 presses toward the winding drum at its operating position, i.e., the first contact position, the optimal placement area for the trailing end of the product for subsequent unwinding is defined at the shortest distance between the two pressing components 14 and 15, i.e., the shortest distance between the first contact position and the second contact position.

[0049] The optimal positioning region for the rear end is preferably located on a part of the side surface where the angle with respect to the center of the winding drum 5 is less than 90° (for example, 30° to 60°).

[0050] Preferably, the second pressing component 15 is at least one motor-driven roller, for example, only one motor-driven roller, which is suitable for rotating around its axis to enter the second contact position, and the rotation is in the opposite direction to the rotation direction of the winding drum 5, to facilitate unwinding of the product wound on the drum.

[0051] Therefore, for example, an electric or mechanical drive mechanism 22 is provided to drive the rotation of the motor-driven roller. For example, a chain drive can be provided to transmit rotation to the motor and the shaft of the motor-driven roller 15.

[0052] The translational movement means 21 can be, for example, hydraulic, pneumatic, or mechanical, and is provided to translate the second pressing component 15 from a corresponding standby position to a corresponding operating position, or vice versa.

[0053] Preferably, both the driving means 22 and the translational moving means 21 may be located on the same support longitudinal structure of the second pressing component 15. The longitudinal structure is suitable for partially passing through the passage 16. The longitudinal structure is preferably inclined with respect to the horizontal, and preferably inclined at an angle in the range of 5° to 20°.

[0054] An outer hatch is provided, which is connected to the outer metal wall 27 of the casing 2 and is used to open and close the passage 16.

[0055] In a further preferred modification of the present invention, the internal chamber 3 of the coiler furnace 1 is provided with a detection means 17 for detecting the presence of the trailing end of the product wound on the winding drum 5. The detection means 17 detects, in particular, when the trailing end is in an optimal placement area.

[0056] The detection means may be, for example, one or more video cameras or thermal cameras fixed to the inner surface of the casing 2.

[0057] The detection means is resistant to high temperatures and, for example, is equipped with a suitable cooling system.

[0058] At least one video camera 17 is preferably fixed in the optimal placement area at the rear end. In some cases, at least one more video camera 17 can be fixed in an area outside the optimal placement area at the rear end, preferably on the upper inner surface of the casing 2.

[0059] In a preferred modification of the present invention, the second section 10 of at least one carriage 8 further comprises a second deflection device 23 for deflecting the trailing end of the product wound on the winding drum 5, which becomes the leading end of the product again during the unwinding process, toward the opening 7 and thus toward each pinch roll 33, thereby preventing the leading end of the product from sliding into the machine and being unable to reach the pinch roll 33.

[0060] Preferably, the second deflection device 23 includes a coupling lever mechanism. The first end of the coupling lever mechanism is connected to the free end of the arm 13, and the second end of the coupling lever mechanism is connected to the second section 10, for example, a structure 24 provided in the second section 10.

[0061] When the arm 13 is in the raised position and the pressing component 14 is pressing the product wound on the winding drum 5, the connecting lever mechanism extends and defines a sliding portion that directs the product toward each pinch roll 33 (Figures 3a to 3b).

[0062] On the other hand, when the arm 13 is in the lowered position outside the casing 2, the connecting lever mechanism is folded (Figure 5).

[0063] In a preferred embodiment of the coir furnace of the present invention, at least one carriage 8 is A first trolley 25 having a first section 9 that is capable of translational movement laterally with respect to the product transport direction, The system includes a second carriage 26 having a second section 10 that is separated from the first carriage and capable of translational movement laterally with respect to the product transport direction (Figures 2 and 4).

[0064] A first embodiment of a method for retrieving the rear end of a metal product wound around a drum inside a coiler furnace, according to one of the modified examples, is described below, in the case where the rear end of the product passes through the pinch roll 33 and freely enters the coiler furnace.

[0065] A first embodiment of a method for recovering the rear end is: a) A step of translating the first section 9 from the operating position to the corresponding standby position, b) A step of translating the second section 10 from the standby position to the operating position, c) A step of rotating the arm 13 of the second section 10 so that the tiltable pressing component 14 presses the product wound on the winding drum 5 at the first contact position, d) The process includes rotating the winding drum 5 in the same direction as the winding direction until the trailing end of the wound product exceeds the tiltable pressing component 14.

[0066] Between steps c) and d), or during the execution of step c), the second pressing component 15 passes through a through-section 16 provided through the casing 2 and translates from a corresponding standby position where at least a portion is located outside the casing 2 to a corresponding operating position inside the casing 2 until it presses the product wound on the winding drum 5 at a second contact position above the first contact position.

[0067] In particular, during step d), at least one motor-driven roller defining the second pressing component 15 rotates around its axis in the opposite direction to the rotation direction of the winding drum 5 to reach the second contact position.

[0068] Figure 3a shows an exemplary position 45 of the trailing end of the product wound onto the winding drum 5 after passing through the pinch roll 33.

[0069] Figure 3b shows the new position 46 of the rear end of the product after step d), i.e., after the winding drum 5 is rotated in the same direction as the winding direction until the rear end of the wound product is pressed and moves beyond the tilting pressing component 14, thereby moving the rear end to a position suitable for unwinding the product and discharging it from the furnace.

[0070] Preferably, to further facilitate the recovery of the rear end and the unwinding of the coil, a detection means 17 located in the internal chamber 3 of the furnace detects when the rear end of the product wound on the winding drum 5 is, for example, between the first contact position and the second contact position, i.e., within the optimal positioning region for the rear end of the product for subsequent unwinding.

[0071] The following describes a second embodiment of a method for retrieving the rear end of a metal product when the rear end of the product freely enters the furnace beyond the pinch roll.

[0072] A variation of the second method for recovering the rear end is: a) A step of rotating the winding drum 5 in the same direction as the winding direction until the trailing end of the wound product reaches the area in the opening 7, b) A step of moving the second pressing component 15 through a through-section 16 provided through the casing 2 from a corresponding standby position where at least a portion is located outside the casing 2 to a corresponding operating position inside the casing 2, until the second pressing component contacts the product wound on the winding drum 5 at a contact position above its rear end, c) The step of rotating the arm 13 of the second section 10 to a corresponding operating position so that the tilting pressing component 14 contacts the product wound on the winding drum 5 at a further contact position, and the rear end is located between the contact position and the further contact position, i.e., within the optimal positioning region of the rear end of the product for subsequent unwinding.

[0073] Preferably, the position of the rear end can be determined by the detection means 17 before step a).

[0074] Furthermore, before step a), the deflection device 12 moves to a second operating position that closes the opening 7.

[0075] Preferably, prior to step c), for example, before, during, or after step a), or before, during, or after step b), A step of translating Section 9 from the operating position to the corresponding standby position, A step is provided to translate the second section 10 from a standby position to an operating position.

[0076] Processes b) and c) can be carried out either before the other, or they can be carried out simultaneously.

[0077] In both embodiments of the rear end retrieval method, when the rear end is located between the two contact positions of the pressing parts 14 and 15, i.e., in the optimal positioning region for the rear end of the product for the next unwinding, the winding drum 5 can be rotated in the opposite direction to the winding direction, thereby initiating the unwinding of the product, which continues until the new leading edge of the product reaches the pinch roll 33.

[0078] While the winding drum 5 rotates in the opposite direction to the winding direction, the motor-driven roller-shaped second pressing component 15 rotates in the opposite direction to the drum 5.

[0079] At this point, the pinch rolls 33 grip the product again, and the product is unwound and passed through at least one rolling mill stand 30 until it is wound onto a winding drum in yet another coiler furnace 1.

[0080] Upon completion of deciphering, The process of translating the second section 10 from the operating position to the corresponding standby position, The process of translating Section 9 from the corresponding standby position to the operating position is performed.

Claims

1. An insulated casing (2) partitions the internal chamber (3) of the furnace, A winding device (4) for winding up the product is provided, which is located inside the internal chamber (3) and has a winding drum (5) provided with a receiving port (6) for receiving the leading edge of the product. An opening (7) is provided at the lower part of the casing (2) for the product to enter the casing and exit the casing, The system comprises at least one trolley (8) capable of translational movement laterally with respect to the transport direction of the product, The aforementioned at least one trolley (8) includes: The opening (7) is configured to take an operating position below the casing (2) and a corresponding standby position located to the side of the operating position, A second section (10) is provided, which is configured such that when the first section (9) takes the operating position it takes a corresponding standby position, and when the first section (9) takes the corresponding standby position it takes the operating position. Section 1 (9) above is, When the first section (9) is in the operating position, a roller table (11) for transporting the product along the transport direction, The device includes a deflection device (12) fixed to the roller table (11) for deflecting the product from the roller table (11) to the winding drum (5) or in the opposite direction when the first section (9) is in the operating position, or for closing the opening (7) when the deflection device is in the second operating position, The second section (10) has an arm (13) with a tiltable pressing component (14) at its first free end, and the arm (13) is operable to contact the product wound on the winding drum (5) at a first contact position by the tiltable pressing component (14) when the second section (10) is in the operating position. In particular, a coiler (1) for winding metal products from a reversible rolling mill.

2. The arm (13) is pivotally supported at its second end to the second section (10), and is provided with a drive means (20) for raising or lowering the arm (13), the drive means (20) preferably being integrated with the second section (10). Coiler furnace according to claim 1.

3. A second pressing component (15) is configured to take a corresponding standby position in which at least a portion is located outside the casing (2), and a corresponding operating position inside the casing (2), The second pressing component (15) is configured to pass through a passage to move from a corresponding standby position to a corresponding operating position and vice versa, and to press against the product wound on the winding drum (5) at a second contact position above the first contact position, and is provided with a passage (16) that penetrates the casing (2), Coiler furnace according to claim 1 or 2.

4. The second pressing component (15) is at least one motor-driven roller, the motor-driven roller is suitable for rotating around its axis to reach the second contact position, and its direction of rotation is opposite to the direction of rotation of the winding drum (5). Coiler furnace according to claim 3.

5. The internal chamber (3) is provided with a detection means (17) for detecting the presence of the rear end of the product wound on the winding drum, and for detecting when the rear end is located between the first contact position and the second contact position. Coiler furnace according to claim 3 or 4.

6. The pressing component (14) is a body configured such that two ends contact the product wound around the winding drum (5) at two different points, preferably having driven or motor-driven rollers (18) at the first end of the two ends and sharp members (19) at the second end of the two ends. Coiler furnace according to any one of claims 1 to 5.

7. The second pressing component (15) is provided with a translational moving means (21) for translating it from the corresponding standby position to the corresponding operating position, or vice versa. Coiler furnace according to any one of claims 2 to 6.

8. A driving means (22) for rotating the motor-driven roller is provided. Coiler furnace according to any one of claims 3 to 6.

9. The second section (10) further includes a second deflection device (23) for deflecting the product wound on the winding drum (5) toward the opening (7) during the product unwinding process. Coiler furnace according to any one of claims 1 to 8.

10. The second deflection device (23) includes a connecting lever mechanism, the connecting lever mechanism being connected at its first end to the second free end of the arm (13) and at its second end to the structure (24) of the second section (10), When the arm (13) is in the raised position, the pressing component (14) presses the product wound on the winding drum (5), and the connecting lever mechanism extends to define the sliding portion for the product. On the other hand, when the arm (13) is in the lowered position outside the casing (2), the connecting lever mechanism is folded. Coiler furnace according to claim 9.

11. The aforementioned at least one trolley is A first trolley (25) having the first section (9) is capable of translational movement laterally with respect to the transport direction of the product, A second trolley (26) having the second section (10) is capable of translational movement laterally with respect to the transport direction of the product, Coiler furnace according to any one of claims 1 to 10.

12. A method for recovering the trailing end of a metal product wound around a drum inside a coiler furnace according to any one of claims 1 to 11, a) A step of translating the first section (9) from the operating position to the corresponding standby position, b) A step of translating the second section (10) from the corresponding standby position to the operating position, c) A step of rotating the arm (13) of the second section (10) to bring the tiltable pressing component (14) into contact with the product wound on the winding drum (5) at the first contact position, d) The process includes rotating the winding drum (5) in the same direction as the winding direction until the rear end of the wound product passes over the tiltable pressing component (14), method.

13. Between steps c) and d), or during the execution of step c), the second pressing component (15) passes through a passage (16) provided through the casing (2) from a corresponding standby position outside the casing (2) to a corresponding operating position inside the casing (2), until it presses the product wound on the winding drum (5) at a second contact position above the first contact position. The method according to claim 12.

14. A method for recovering the trailing end of a metal product wound around a drum inside a coiler furnace according to any one of claims 3 to 11, a) A step of rotating the winding drum (5) in the same direction as the winding direction until the rear end of the wound product reaches the area in the opening (7), b) A step of moving the second pressing component (15) through the through portion (16) provided through the casing (2) from a corresponding standby position, i.e., a state in which at least a portion is located outside the casing (2), to a corresponding operating position inside the casing (2), until the second pressing component contacts the product wound on the winding drum (5) at a contact position above the rear end; c) The step of rotating the arm (13) of the second section (10) to the corresponding operating position so that the tiltable pressing component (14) contacts the product wound on the winding drum (5) at a further contact position, with the rear end located between the contact position and the further contact position, method.

15. The rear end of the product wound around the winding drum (5) is detected by the detection means (17) located in the internal chamber (3). The method according to claim 13 or 14.

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