Rolling mill

Abstract

This disclosure relates to a rolling apparatus (1) comprising: - a building B; - a system (2) for unwinding / winding a metal coil, including a base mounted on the top surface of the building (B); - a coil support bracket (3) aligned with and extending below the support mandrel, disposed in a groove (F) below the top surface of the building; - a system (4) for mechanized unloading and loading of sleeves, configured to load or unload a removable sleeve (V) on the support mandrel.

Description

[0001] This disclosure relates to a rolling mill comprising a building, a system for unwinding / winding a metal coil, a coil support bracket housed in a groove in the building, and a system for mechanized unloading and loading of a sleeve, the system being configured to load or unload a removable sleeve on a support mandrel of the unwinding / winding system.

[0002] This disclosure also describes a method for loading a sleeve using rolling equipment according to this disclosure, and loading the sleeve onto a support mandrel by means of a system for mechanized unloading and loading of the sleeve. Technical Field

[0003] This disclosure relates to the field of rolling equipment, particularly cold rolling equipment, including an unfolding / winding system having a support mandrel driven by an electric motor to rotate about its axis and configured to unfold the coil to be rolled upstream of the mill according to the direction of travel of the strip in the unfolding section of the mill.

[0004] The unfolding / winding system with a mandrel driven by an electric motor can also be configured to wind the strip into a coil in front of the mill according to the direction of travel of the metal strip in the winding section of the mill. Background Technology

[0005] Existing technology for rolling equipment with unrolling / winding systems includes an electric motor-driven mandrel configured to provide unrolling (before rolling) or winding (after rolling) of the metal coil to be rolled.

[0006] Because the inner diameter of the coil is variable, the metal coil is not directly pressed against the mandrel driven by the electric motor, but is loaded only through a cylindrical adapter (hereinafter referred to as a sleeve). The inner diameter of the sleeve is adjusted to the operating clearance at the outer diameter of the mandrel, and its outer diameter is adapted to the inner diameter of the coil.

[0007] Therefore, when loading metal coils, a sleeve suitable for the coil size (especially its inner diameter) must be pre-installed.

[0008] The winding / unwinding system is typically fixed to a civil engineering structure, usually made of reinforced concrete, which includes a groove (or hole) below the horizontal plane of the base of the winding / unwinding system. The groove is located below the support mandrel and is arranged along its axis, and the roll support bracket travels within the groove.

[0009] Such a coil support bracket is used to load or unload metal coils onto a support mandrel that has been pre-installed with a sleeve, and to travel along the groove of the coil support bracket from a remote position away from the support mandrel to a position perpendicular to the support mandrel in a direction aligned with the axis of the support mandrel.

[0010] Typically, coil holders are used to load sleeves. This results in prolonged mill downtime (6 minutes) and consequently significant production losses. This is because the coil holders must unload the coils and transport them to the storage ramp before the sleeve loading sequence can proceed.

[0011] Then, the roll holder can be moved again for the roll bundling operation, and only after the holder is released can it return to the sleeve distribution station to receive sleeves and begin the loading operation on the mandrel.

[0012] This sleeve distribution station can make it difficult to ensure the reliability of the loading sequence, because such loading is usually achieved by simply rolling on an inclined ramp and tilting the head.

[0013] Due to inaccurate placement on the bracket head, the bracket must begin measuring the sleeve length in sequence to determine the sleeve's position on its head, taking into account the alignment movement on the mill's spool.

[0014] If the sleeve diameter is variable, the bracket also implements the sequence of measuring the sleeve diameter, which also requires a certain amount of time.

[0015] Furthermore, the roll holder is not a device specifically designed for this operation, but rather for handling rolls, and does not provide precise positioning of the sleeve on the mandrel (alignment on the rolling shaft), which typically requires control of the roll holder. Therefore, an operator needs to be present throughout the sleeve loading process, which hinders the parallel implementation of operations.

[0016] However, existing technology does not know how to equip rolling equipment with a sleeve loading / unloading system, which is a specific system different from a coil support bracket.

[0017] For example, a first prior art technique knows of a clamp mounted on a processing crane arranged above the area of ​​a winding / unwinding system. The crane is equipped with lifting / lowering movements for removing or placing the sleeve on a bracket for placing the sleeve under the control of the crane, or for removing the sleeve from the control via movements parallel to and perpendicular to the strip travel axis, thereby allowing the sleeve to be placed on or removed from a mandrel.

[0018] The drawback of this solution is that it takes up a lot of ground space and requires a bulky frame, which can interfere with the maintenance of cranes used for other equipment.

[0019] The second prior art is a movable support supported by a device that travels along the horizontal plane of the building and is aligned with a roll support bracket.

[0020] The solution includes a bracket with a sleeve that has a movement parallel to the strip travel, and allows means for translating and raising the bracket supporting the sleeve to be placed on or retracted onto the roll seat bracket shaft.

[0021] Translation of the sleeve on the coil support bracket axis is achieved via a long arm that slides along a guide rail on the sleeve bracket. The end of this arm is equipped with a system for lifting the bracket. The sleeve is positioned on the spindle by resting it against the coil ejector plate, the position of which is controlled by an encoder.

[0022] The main drawback of this solution is:

[0023] - The slow speed significantly increases the frequency of sleeve replacement.

[0024] - Interference between specific equipment and the roll-to-roll holder restricts the movement of the roll-to-roll holder.

[0025] - The short stroke (2700 mm) for releasing the sleeve from the mill shaft makes operations involving storing or lifting the crane dangerous for other equipment and makes it difficult for operators to access the equipment for hoisting operations. Utility Model Content

[0026] This disclosure will improve this situation. A rolling apparatus is proposed, comprising:

[0027] - Buildings,

[0028] - A system for unwinding / winding metal coils, the system comprising a base mounted on a top surface of a building, a support mandrel rotatably mounted relative to the base about an axis of the support mandrel, a removable sleeve mounted around the mandrel, and a system for rotating the support mandrel about its axis.

[0029] - A roll material holder, aligned with and extending below the support mandrel, is disposed in a groove below the building surface, the groove being exposed on the upper surface through a groove opening. The roll material holder is configured to move within the groove along the direction of the support mandrel to load the roll material onto the support mandrel and sleeve of the unfolding / winding system, or conversely, to remove the metal roll material from the support mandrel and sleeve assembly.

[0030] - A system for mechanized unloading and loading of sleeves, the system being configured to load or unload removable sleeves on a support mandrel, comprising:

[0031] -- A support system, including a support bracket configured to support a sleeve along a sleeve axis parallel to the axis of a support mandrel.

[0032] -- A first bracket, guided by a first slide system, the first slide system including at least one guide rail arranged along a guide direction parallel to the axis of the support spindle, movable along the at least one guide rail under the action of a first actuator, the at least one guide rail being longitudinally mounted on a beam supported along its length by the side edges of the groove opening.

[0033] -- A second bracket, including a support system, is guided relative to the first bracket by a second slide system configured to provide guidance of the second bracket relative to the first bracket in a second direction laterally to the first direction. The second bracket is movable under the action of a second actuator.

[0034] Furthermore, the mechanized unloading and loading system is configured to allow the support system and the support to be positioned in an idle position, in which the bracket is retracted a certain distance from the support spindle by the first bracket along a first direction, and the second bracket is movable laterally along a second direction under the action of a second actuator. The support and the second bracket are laterally and sideways offset relative to the groove opening, and the sleeve is loaded onto the support from the idle position by performing the following actions:

[0035] - / A / At least by moving the second bracket relative to the first bracket in a second direction under the action of the second actuator, the sleeve is aligned with the axis of the support spindle.

[0036] - / B / By moving the first bracket along the first direction under the action of the first actuator, the sleeve is advanced until the mandrel is inserted into the sleeve.

[0037] The features outlined in the following paragraphs may be implemented, optionally independently or in combination with each other:

[0038] - According to one embodiment, the device may include a platform for operator use, wherein, in an idle position, a second bracket is partially accommodated as a drawer between the platform and the building.

[0039] - According to one embodiment, the device may have a vertical adjustment system between the support and the second bracket, the vertical adjustment system being configured to provide adjustment of the support height, and wherein the adjustment includes vertical movement of the support via the vertical adjustment system.

[0040] - According to one embodiment, the support may include:

[0041] - A first segment, configured to support the sleeve at a first end, having a first stop configured to engage with the first end of the sleeve.

[0042] - The second segment, configured to support the sleeve at its second end, has a second stop configured to engage with the second end of the sleeve.

[0043] Furthermore, the support system includes a mechanism for adjusting the spacing between the first segment and the second segment, the mechanism being configured to allow adjustment of the spacing in the adjustment direction including the third actuator.

[0044] - According to one embodiment, the adjustment mechanism may include: oriented along the adjustment direction,

[0045] - A first slide rail located between the first section and the support member of the bracket system, and a first rack fixed to the first section.

[0046] - A second slide rail located between the second section and the support member of the bracket system, and a second rack fixed to the second section.

[0047] The first and second racks face each other and mesh with the same pinion of the motor of the third actuator.

[0048] According to one embodiment, the beam can be an irregularly shaped beam, comprising:

[0049] - A top flange, abutting the top surface of the side edge of the groove opening, and a set of fastening members passing through holes in the top flange distributed along the length of the beam to pass through the side edge.

[0050] - A vertical flange, abutting the vertical wall of the side edge of the groove opening, and a set of fastening members passing through holes in the top flange distributed along the length of the beam to pass through the side edge.

[0051] - Bottom flange extends below the side edge.

[0052] According to one embodiment, the first slide system may include a length-extending side track fixed to a vertical flange and projecting laterally, and a bottom track projecting downward from the bottom flange.

[0053] - According to one embodiment, the first bracket has a C-shaped structure, which has:

[0054] - Bottom flange, which is guided on the bottom track.

[0055] - Vertical flange, which is guided on the side rails.

[0056] - The top flange overlaps with the side edge that supports the second slide system.

[0057] According to one embodiment, the top wall of the side edge is scalloped below the horizontal level of the building's top surface to accommodate the top flange of the first bracket. Attached Figure Description

[0058] Other features, details, and advantages will become apparent after reading the detailed description below and analyzing the accompanying drawings, among which:

[0059] Figure 1a

[0060] [ Figure 1a [ ] is a perspective view of the rolling mill, which includes:

[0061] - Buildings,

[0062] - A system for winding and unwinding metal coils, comprising a base and a rotating mandrel, with sleeves arranged around the rotating mandrel.

[0063] - A trench beneath the building, and a roll material holder configured to move within the trench along the axis of a mandrel for loading and unloading roll material onto a sleeve and support mandrel assembly. The roll material holder is shown in a position perpendicularly aligned with the support mandrel.

[0064] - A system for mechanized unloading and loading of sleeves, comprising a support configured to move longitudinally into a trench along the axis of a supporting mandrel via a first bracket and transversely into the trench via a second bracket, the first bracket being specifically guided along at least one track fixed to a beam, the beam being supported longitudinally on the transverse edge of the trench opening, the trench opening being exposed upwards.

[0065] The figure shows a support system in which the first and second brackets are in an idle position, away from the support mandrel and laterally offset from the groove opening. The brackets can be loaded with sleeves while allowing the roll seat brackets to circulate freely.

[0066] Figure 1b

[0067] [ Figure 1b ]yes Figure 1a The cross-sectional view of the equipment along a vertical plane passing through the trench shows the roll support bracket perpendicularly aligned with the support mandrel, and the distance Dl between the end of the support mandrel and the center of the crane when viewed along the direction of the beam (i.e., the first direction).

[0068] Figure 2

[0069] [ Figure 2 ] Figure 2 yes Figure 1aA view of the rolling mill, in which the coil support bracket has been moved a distance from the support mandrel beyond the idle position of the support system, and the support system including the sleeve has been moved, so that by moving the second bracket in the second direction, the sleeve is made to cross the groove opening, and the sleeve is centered relative to the axis of the support mandrel, and once the centered sleeve is moved by the first bracket to its position on the support mandrel, the sleeve is moved in the first direction.

[0070] Figure 2a

[0071] [ Figure 2a ] Figure 2a yes Figure 2 A cross-sectional view along a vertical plane passing through the trench axis.

[0072] Figure 3

[0073] [ Figure 3 [Illustration 1] is a cross-sectional view along a plane perpendicular to the longitudinal axis of the beam, showing the beam as an irregular member abutting at the top and laterally at the side edges of the groove opening, and a first bracket guided by two longitudinal tracks of the beam, the first track projecting laterally from the side flange of the irregular member and the second track projecting downward from the bottom flange of the irregular member. The cross-sectional view shows a cutout portion of the building that receives the top flange of the first bracket and makes the second bracket substantially flush with the top surface of the building.

[0074] Figure 4

[0075] [ Figure 4 The figure shows a detailed view of the bottom track, which is a rack, on which a pinion of a first motor fixed to the first bracket meshes. The figure also shows a second slide system between the second bracket and the first bracket, with its sliding orientation in the lateral direction.

[0076] Figure 5

[0077] [ Figure 5 [This is a detailed view of a rack with a track function, meshing with the motor of the first actuator of the first bracket.]

[0078] Figure 6

[0079] [ Figure 6 This is a detailed view of the second slide system between the second bracket and the first bracket, and the second actuator, which includes an electric motor whose output pinion meshes with a rack.

[0080] Figure 7

[0081] [ Figure 7 [This is a detailed view of the bracket, which includes a first section and a second section, with an adjustable spacing between them.]

[0082] Figure 8

[0083] [ Figure 8 [Illustration] is a cross-sectional view along a plane perpendicular to the longitudinal axis of the support, showing an electric jack housed in one of the two support columns of the support member and the second bracket that are vertically connected to the support.

[0084] Figure 9

[0085] [ Figure 9 [Illustration 1] is a detailed view along a horizontal cross section showing a mechanism for adjusting the spacing between the first and second sections of the support. The mechanism includes a first rack fixed to the first section and a second rack to the second section, which meshes with a pinion driven by an electric motor. Detailed Implementation

[0086] This disclosure relates to rolling mill 1, which includes:

[0087] Building B,

[0088] - System 2 for unwinding / winding metal coils, including a base mounted on the top surface of building B.

[0089] - A roll material support bracket 3, aligned with and extending below the support mandrel, is arranged in a groove F below the building's roof surface.

[0090] - System 4 for mechanized unloading and loading of sleeves, configured to load or unload detachable sleeves V on a support mandrel.

[0091] Buildings are civil engineering structures, typically made of reinforced concrete.

[0092] The unfolding / winding system 2 includes a support mandrel 20, which is mounted relative to the base about the axis A of the support mandrel 20. 20 Rotation, and a removable sleeve V mounted around the mandrel, and a system for rotating the support shaft about its axis, the system typically including an electric motor.

[0093] The unwinding / coiling system can be an unwinding system, located in the area for unwinding the metal coil, i.e., upstream of the mill along the direction of travel of the metal strip. However, the system can also be a coiling system, located downstream of the mill along the direction of travel. The mill is typically a cold rolling mill, which includes a cage and rolling cylinders with at least two working cylinders that apply clamping force during the travel of the metal strip.

[0094] Rolling mills can typically be of the following types:

[0095] - It has four cylinders, including two working cylinders and two clamping cylinders. A clamping force is applied to the working cylinders via two contact lines (bottom and top) between each clamping cylinder and the working cylinders.

[0096] - It has six cylinders, including two intermediate cylinders located at the top and bottom, each intermediate cylinder contacting one of the clamping cylinders and one of the working cylinders, or

[0097] - It has six so-called lateral support cylinders, in addition to two clamping cylinders, a working cylinder, and an intermediate cylinder, including lateral support cylinders that make lateral contact with each working cylinder.

[0098] - It has 20 cylinders, including two working cylinders, two first intermediate cylinders, three second intermediate cylinders, and four sets of support rollers for each working cylinder (bottom or top).

[0099] The groove F is exposed on the top surface through the groove opening OV. The roll support 3 is configured to move within the groove along the direction of the support mandrel to load the roll onto the support mandrel of a sleeve previously equipped with an unfolding / winding system, or conversely, to remove the metal roll from the support mandrel and sleeve assembly.

[0100] like Figure 3 As shown, the coil support bracket 3 includes a motorized wheel 30 configured to move the coil support bracket 3 substantially along the direction of the support spindle. The coil support bracket 3 includes a coil support frame, specifically including two parallel support rollers 32 for supporting the metal coil via two contact lines along a generatrix between the coil and the two support rollers 32. The coil support bracket 3 may include an adjustment mechanism for adjusting the height of the coil support bracket relative to the base, the adjustment mechanism being arranged between the base of the coil support bracket and the coil support frame, and including one or more jacks 31.

[0101] In a position away from the support mandrel 20, the roll holder 3 can be loaded with metal rolls. Once the axis of the roll is aligned with the axis of the support mandrel assembly equipped with a sleeve by optionally adjusting the height of the bracket, the roll holder 3 moves toward the support mandrel 20 until the sleeve V is inserted into the inner diameter of the metal roll, especially when the roll holder is aligned with the support mandrel and perpendicular to the support mandrel.

[0102] System 4 for mechanized unloading and loading of sleeves is configured to load or unload detachable sleeves on a support mandrel and is a device distinct from the coil support bracket 3. This allows sleeves sized to fit the inner diameter of the coil to be loaded before loading the metal coil.

[0103] Generally speaking, and according to the first possibility, the unloading and loading system 4 can be specifically arranged above the roll carrier so as not to interfere with the movement of the roll carrier.

[0104] In the second possibility, the roll support bracket 3 is configured to travel in the groove to provide loading (or unloading) of the support mandrel 20, which makes it possible to arrange the movable parts of the system in a position that does not interfere with the free travel of the roll support bracket in the direction of the support mandrel, only at a certain position of the system (hereinafter referred to as the idle position PR).

[0105] Unloading and loading system 4 includes:

[0106] - A stent system 40, including a stent BC, configured to support a sleeve V on a sleeve axis parallel to the axis of the support mandrel.

[0107] - A first bracket CH1, guided by a first slide system 41, the first slide system 41 having at least one guide rail R1, the length of which is arranged along a guide direction parallel to the axis of the support spindle 20. The first bracket CH1 is movable along the at least one guide rail R1 under the action of a first actuator AT. The at least one guide rail R1 is longitudinally mounted on a beam PT, which is supported in length by the side edges BL of the groove opening OV.

[0108] - The second bracket CH2, in conjunction with the support system 40, is guided relative to the first bracket CH1 by the second slide system 42, which is configured to provide guidance of the second bracket CH2 relative to the first bracket CH1 in a second direction d2 that is transverse to the first direction d1. The second bracket CH2 is movable under the action of the second actuator AT2.

[0109] The stent system, including the stent BC, is preferably always oriented along its length to support a sleeve V oriented along its axis, which is parallel to the axis of the support mandrel. The alignment and insertion movement of the stent onto the sleeve V can be achieved primarily or even solely by translation along a first direction d1 and a second direction d2, or even additionally by translation along a perpendicular third direction.

[0110] According to this disclosure, the mechanized unloading and loading system 4 is configured to allow the support system 40 and the support BC to be positioned in an idle position PR, in which the support BC is retracted a certain distance from the support spindle 2 by the first bracket CH1 along a first direction d1 and laterally retracted along a second transverse direction d2.

[0111] The support system and the idle position PR of the support enable loading and unloading of the sleeve in the support's position. The support is preferably always oriented in length to support the sleeve oriented along its axis, which is parallel to the axis of the support mandrel. Optionally, to facilitate loading and unloading operations, the support system can provide a rotation mechanism that allows relative rotation of the support, with the support moving substantially along the vertical axis at an angular travel of 90° or greater (e.g., between 90° and 135°) or less than 90° (e.g., between 45° and 90°). Therefore, the orientation of the support along the vertical axis changes in the idle position, which can facilitate loading and unloading operations in certain integrations.

[0112] Specifically, the center of the stent system can be recessed by a distance Dl greater than or equal to 3 meters relative to the support mandrel in the first direction d1 in the idle position. When viewed in the first direction d1, the direction Dl is determined by the distal end of the support mandrel and the furthest point from the center of the stent.

[0113] In the idle position PR, the bracket BC is offset laterally relative to the groove opening OV. In this position, the second bracket CH2 is also offset laterally relative to the groove opening, as shown below. Figure 3 As shown. In this position, the roll support bracket 3 can move from a position perpendicular to the support mandrel 10 and as far away from the support mandrel, particularly as far away from the position where the roll support bracket extends beyond the support BC in the first direction d1, and then is in the idle position PR of the support BC, advantageously without interfering with the first bracket CH1 and the second bracket CH2. In other words, when the support BC no longer retracts at the idle position PR, but instead spans the groove, the brackets CH1 and CH2 may constitute obstacles that interfere with the free movement of the roll support bracket.

[0114] According to one embodiment, the mechanized unloading and loading system 4 may include a vertical adjustment system 43 disposed between the support BC and the second bracket CH2, which is configured to provide adjustment of the height of the support BC.

[0115] The unloading and loading system 4 is configured to allow the sleeve V loaded on the support BC to be loaded from the idle position PR by performing the following actions:

[0116] - / A / By moving the second bracket CH2 relative to the first bracket CH1 along the second direction d2 under the action of the second actuator AT2 and / or by moving the bracket in the vertical direction through the adjustment system 43, the sleeve V is aligned with the axis of the support spindle 2.

[0117] - / B / By moving the first bracket CH1 along the first direction d1 under the action of the first actuator AT1, the sleeve V is advanced until the mandrel is inserted into the sleeve V.

[0118] Generally, a support may include at least two support walls that are inclined relative to each other, which are configured to hold the sleeve by two contact lines located between the cylindrical outer surface and the two inclined walls respectively, namely a first contact line between the cylindrical outer surface and one inclined wall (typically along a first generatrix of the cylindrical surface) and a second contact line between the outer surface and the other inclined wall (typically along a second generatrix of the cylindrical surface).

[0119] According to an advantageous embodiment, the support may include:

[0120] - The first segment BC1, configured to support the sleeve at its first end, particularly along the first and second contact lines, has a first stop B1 configured to engage with the first end (typically the first base) of the sleeve.

[0121] - The second segment BC2 is configured to support the sleeve at the second end of the sleeve, particularly along the first and second contact lines. The second segment has a second stop B2, which is configured to engage with the second end (typically the second base) of the sleeve.

[0122] The support system 40 may include a mechanism for adjusting the spacing between the first segment BC1 and the second segment BC2, the mechanism being configured to allow adjustment of the spacing in an adjustment direction including the third actuator AT3.

[0123] The adjustment mechanism may include those oriented along the adjustment direction:

[0124] - The first slide rail G1 located between the first segment BC1 and the support member of the bracket system, and the first rack CR1 fixed to the first segment BC1.

[0125] - The second slide rail G2 is located between the second section BC2 and the support of the bracket system, and the second rack CR2 is fixed to the second section BC2.

[0126] The first rack CR1, fixed to the first segment BC1, and the second rack, fixed to the second segment BC2, face each other and mesh with the same pinion PIG of the motor of the third actuator AT3.

[0127] According to the implementation method shown in the figure:

[0128] - The rack CR1 is machined on the first track of the first slide rail G1, which is configured to slide in engagement with a first guide member on the support member: the assembly consisting of the first guide member and the first track forms the first slide rail.

[0129] - The rack CR2 is machined on the second track of the second slide rail G2, which is configured to slide in engagement with the second guide on the support: the assembly consisting of the second guide and the second track forms the second slide rail G2.

[0130] Each track (first or second) may include two longitudinal grooves with opposite diameters, and two convex guides of the guide protruding toward each other and configured to slide within the grooves.

[0131] Rotation of the pinion PIG in the first direction brings the two segments BC1 and BC2 closer together, thereby shortening the length of the support. Conversely, rotation of the pinion in the opposite second direction separates the two segments BC1 and BC2, thereby increasing the length of the support BC. During loading, the two segments BC1 and BC2 can be separated by a length dimension greater than the dimension of the sleeve V along its axis, facilitating sleeve loading. Once against the first segment BC1 and the second segment BC2, the adjusting mechanism can be operated to bring the two segments closer together, specifically until the first stop B1 and the second stop B2 contact and abut against the ends of the sleeve. Thus, the sleeve V is positioned relative to the support BC in the longitudinal direction of the support BC, and the sleeve wedges into its axial direction.

[0132] The central positioning of the sleeve ensures reliable positioning when the first bracket CH1 moves.

[0133] It should be noted that the height adjustment system 43 may include two telescopic columns, each containing a vertical inner VR that unfolds to increase the column's size or retracts to decrease its height. The unfolding of the two jacks is synchronized, allowing the columns to unfold or retract simultaneously. Alternatively, the commands of the two jacks may be desynchronized to adjust for slight tilting defects in the sleeve.

[0134] A beam PT supporting at least one guide rail R1 for guiding the first bracket CH1 is continuously abutted along the length of the side edge BL of the building B at the trench opening OV. The beam PT is advantageously supported along the length of the building and therefore will not bend under the load of movement of the first bracket and the mass supported by the first bracket (particularly the second bracket, the support system, and the applicable sleeve V).

[0135] Beam PT can be an irregular beam, which may include:

[0136] - A top flange AL1 abuts against the top surface of the side edge BL of the groove opening OF, and a set of fastening members OF passing through holes distributed along the beam length in the top flange to pass through the side edge.

[0137] - A vertical flange AL2 abuts against the vertical wall of the side edge of the groove opening, and a set of fastening members OF passing through holes distributed in the top flange along the beam length to pass through the side edge.

[0138] - Bottom flange AL3 extends below the side edge BL.

[0139] The top flange AL1, the vertical flange AL2, and the bottom flange AL3 can form the three flanges of the C-shaped component.

[0140] The first slide system 41 may include a side track R1l extending along a first direction d1, which is fixed to a vertical flange AL2 and protrudes laterally, and a bottom track R1i protruding downward from the bottom flange AL3.

[0141] The side rail R1l and the bottom rail R1i may each include a rail with two longitudinal grooves of opposite diameters, and two convex guides of the guides protruding toward each other and configured to slide within the grooves.

[0142] The first bracket CH1 can have a C-shaped structure, which has:

[0143] - Bottom flange, which is guided on bottom track R1i by bottom guide PG1i.

[0144] - Vertical flange Alv, which is guided on lateral track R1l by lateral guide PG1i.

[0145] - Top flanges ALs, which overlap with the lateral edges that support the second slide system 42.

[0146] It should be noted that the bottom track R1i may include a rack that meshes with the output pinion of the motor of the first actuator AT1. The pinion of the motor meshes with the rack in the body of the bottom guide PG1i.

[0147] The motor that drives the first actuator AT1 in the first direction of rotation of the pinion enables the first bracket CH1 to be driven in the first direction and the first axis d1, for example, to move the bracket toward the support spindle 20, while rotation in the second direction causes the first bracket CH1 to move in the opposite direction, i.e., away from the support spindle 20.

[0148] It should be noted that the top wall of the side edge BL may be partially fan-shaped, lower than the top surface of building B, to accommodate the top flange Als of the first bracket CH1, as shown below. Figure 3As shown. The top flange of the receiving bracket allows the second bracket CH2 to be arranged near the first bracket CH1. The top surface of the building, and even part of it itself, is received in a sector ECH within the building, which is arranged at a depth of the top surface of the building, partially in an idle position PR, and can be accessed from the sector ECH when the bracket leaves the building. Figure 2 Understanding.

[0149] The second guiding system 42 may include two guide members configured to engage with two parallel rails R2 extending below the base of the second bracket CH2. The two guide members are secured to the top flange Als of the first bracket. Each rail has two longitudinally opposing grooves, within which two convex guide members of the guide members are located.

[0150] Overall and as Figure 6 As shown, one of the tracks R2 may include a rack that meshes with the pinion gear of the motor of the second actuator AT2. Rotation of the motor in one direction enables the second bracket CH2 to move in the first direction along the second axis d2, and rotation in the opposite direction enables it to move in the opposite second direction.

[0151] It should be noted that the equipment may include a platform PLT for operator use, which includes a horizontal plate, is located at a distance from the building, and forms a shell.

[0152] In the unused position PR, the second bracket CH2 can be partially accommodated like a drawer in the space defined between the platform PLT and the building B.

[0153] This disclosure also relates to a method for loading a sleeve V using rolling mill equipment according to this disclosure, comprising the following steps:

[0154] - / A / At least by moving the second bracket CH2 relative to the first bracket CH1 under the action of the second actuator AT2, the sleeve V is aligned with the axis of the support mandrel 20, and when the rolling equipment includes a vertical adjustment system 43, the bracket is moved vertically where appropriate.

[0155] - / B / By moving the first bracket CH1 along the at least one first track R1 under the action of the first actuator AT1, the sleeve V loaded on the bracket is advanced until the support mandrel is inserted into the sleeve V.

[0156] The advantages of system 4 for loading and unloading sleeve V include all or some of the following:

[0157] - Without interfering with the cycle of the roll support bracket: The roll support bracket can be moved a distance away to prepare for subsequent operations, such as loading or bundling of the roll, while the loading and unloading system 4 can operate simultaneously to load the sleeve V onto the support mandrel, or on the other hand, to unload the sleeve V from the support mandrel.

[0158] - This system allows for long unloading strokes of the support mandrel, i.e., a distance DI greater than three meters, such as four meters.

[0159] - The loading and unloading system has a minimal footprint on the ground and a controlled vertical footprint, less than the height of the supporting spindle.

[0160] The loading and unloading system 3 enables a significant reduction in the loading cycle of the roll material, including the pre-positioning of a sleeve V suitable for the roll material size.

[0161] In particular, the sequence of centering / A / and advancing / B / with the sleeve can be fully automated. The system 4 for loading and unloading the sleeve V may include a control unit, which includes a microprocessor, a memory, and a set of instructions that cooperate with the memory and the microprocessor to perform actions / A / and / B / .

[0162] The control unit may include built-in centering functions, particularly lateral centering, and leveling functions to ensure vertical centering. Once the roll is identified and accessed via the user interface, the control unit can store its dimensional characteristics in memory, enabling the unit to control mechanisms for height adjustment over a given stroke, thereby ensuring that the axes of the support mandrel and sleeve are centered vertically.

[0163] This disclosure also relates to a method for loading a sleeve using rolling mill equipment according to this disclosure, the method comprising the following steps:

[0164] - / A / At least by moving the second bracket relative to the first bracket under the action of the second actuator and, where applicable, vertically moving the support, aligning the sleeve relative to the axis of the support mandrel.

[0165] - / B / By moving the first bracket along the at least one first track under the action of the first actuator, the sleeve is advanced until the mandrel is inserted into the sleeve.

[0166] List of reference numerals

[0167] 1. Rolling equipment

[0168] 2. Unwinding / Rolling System

[0169] B. Buildings

[0170] 20. Support mandrel

[0171] A 20 The axis supporting the mandrel

[0172] V. Sleeve

[0173] 3. Roll material support bracket

[0174] F. Trench

[0175] OV. Groove opening

[0176] 4. Uninstalling and loading the system

[0177] 40. Support System

[0178] BC. Stent

[0179] CH1. First bracket

[0180] 41 First Slide System

[0181] d1. First direction

[0182] R1. Guide rail

[0183] R1i bottom rail,

[0184] PG1i. Bottom guide component,

[0185] R1v. Side rail

[0186] PG1l. Side guide

[0187] AT1. First actuator

[0188] CH2. Second bracket

[0189] 42. Second Slide System

[0190] 43. Vertical adjustment system.

[0191] d2. Second direction

[0192] AT2. Second Actuator

[0193] PR. Unused space

[0194] BC1. First paragraph

[0195] B1. First stop element

[0196] BC2. Second paragraph

[0197] B2. Second stop

[0198] AT3. Third Actuator

[0199] G1. First Slide

[0200] CR1. First rack

[0201] G2. Second Slide

[0202] CR2. Second rack

[0203] PIG. Small gear

[0204] PT. Liang

[0205] ALs. Top flange

[0206] ALv. Vertical flange

[0207] ALi. Bottom flange

[0208] ECH. Sector

[0209] OF. Fastening components

[0210] BL. Side edge

[0211] PLT. Platform.

Claims

1. A rolling mill (1), comprising: - Building (B) - A system (2) for unwinding / winding metal coils, comprising a base mounted on the upper surface of the building (B), the system including a support mandrel (20) about an axis (A) of the support mandrel (20) relative to the base. 20 The support mandrel is rotary-mounted, and a sleeve (V) is detachably mounted around it, and a system for rotating the support mandrel about its axis. - A roll support bracket (3), aligned with and extending below the support mandrel, is disposed in a groove (F) below the surface of the building, the groove being exposed on the upper surface through a groove opening (OV). The roll support bracket (3) is configured to move in the groove along the direction of the support mandrel to load the roll onto the support mandrel and the sleeve of the unfolding / winding system, or conversely, to remove the metal roll from the assembly including the support mandrel and the sleeve. - A system (4) for mechanized unloading and loading of sleeves, configured to load or unload removable sleeves on the support mandrel, comprising: -- A support system (40) includes a support (BC) configured to support a sleeve (V) on a sleeve axis parallel to the axis of the support mandrel. -- A first bracket (CH1) is guided by a first slide system (41), the first slide system having at least one guide rail (R1) arranged along a guide direction parallel to the axis of the support spindle in length, the first bracket moving along the at least one guide rail (R1) according to a first direction (d1) under the action of a first actuator (AT1). The feature is that the at least one guide rail (R1) is longitudinally mounted on a beam (PT), the beam being supported along its length by the side edges of the groove opening (OV). -- A second bracket (CH2), which is incorporated into the support system (40), is guided relative to the first bracket (CH1) by a second slide system (42), the second slide system being configured to provide guidance of the second bracket (CH2) relative to the first bracket (CH1) in a second direction (d2) transverse to the first direction, the second bracket (CH2) being movable under the action of a second actuator (AT2). Furthermore, the mechanized unloading and loading system (4) is configured to allow the support system (40) and the support (BC) to be positioned in an idle position (PR), in which the support (BC) is retracted a certain distance from the support mandrel (20) by the first bracket (CH1) along a first direction (d1) and laterally retracted along a second transverse direction (d2), the support and the second bracket (CH2) being laterally and laterally offset relative to the groove opening (OV), and a sleeve loaded on the support is loaded from the idle position by performing the following actions: - / A / At least by moving the second bracket (CH2) relative to the first bracket (CH1) along the second direction (d2) under the action of the second actuator (AT2), so that the sleeve (V) is aligned with the axis of the support mandrel (20). - / B / By moving the first bracket (CH1) along the first direction (d1) under the action of the first actuator (AT1), the sleeve (V) is moved forward until the support mandrel is inserted into the sleeve (V).

2. The rolling equipment (1) according to claim 1, characterized in that, The rolling equipment includes a platform (PLT) for operator use, and wherein, in the idle position (PR), the second bracket (CH2) is partially accommodated as a drawer between the platform (PLT) and the building.

3. The rolling equipment (1) according to claim 1 or 2, characterized in that, The rolling equipment has a vertical adjustment system (43) located between the support (BC) and the second bracket (CH2), the vertical adjustment system being configured to adjust the height of the support (BC), and wherein centering / A / includes vertically moving the support (BC) via the vertical adjustment system (43).

4. The rolling equipment (1) according to claim 1 or 2, characterized in that, The support includes: - A first segment (BC1), configured to support the sleeve at a first end of the sleeve and having a first stop (B1), the first stop being configured to engage with the first end of the sleeve. - The second segment (BC2) is configured to support the sleeve at the second end of the sleeve and has a second stop (B2) configured to engage with the second end of the sleeve. Furthermore, the support system (40) includes an adjustment mechanism for adjusting the distance between the first segment (BC1) and the second segment (BC2), the adjustment mechanism being configured to adjust the distance in an adjustment direction including the third actuator (AT3).

5. The rolling equipment (1) according to claim 4, characterized in that, The adjustment mechanism includes: oriented in the adjustment direction, - A first slide rail (G1) between the first segment (BC1) and the support member of the bracket system, and a first rack (CR1) fixed to the first segment (BC1). - The second slide (G2) between the second segment (BC2) and the support member of the bracket system, and the second rack (CR2) fixed to the second segment (BC2). Furthermore, the first rack (CR1) and the second rack (CR2) face each other and mesh with the same pinion gear (PIG) ​​of the motor of the third actuator (AT3).

6. The rolling equipment (1) according to claim 1 or 2, characterized in that, The beam is an irregularly shaped beam, which includes: - A top flange (AL1) is adjacent to the top surface of the side edge of the groove opening, and a set of fastening members (OF) pass through holes distributed along the length of the beam to pass through the side edge. - A vertical flange (AL2) is adjacent to the vertical wall of the side edge of the groove opening, and a set of fastening members (OF) pass through holes in the top flange distributed along the length of the beam to pass through the side edge (BL). - Bottom flange (AL3) that extends below the side edge (BL).

7. The rolling equipment (1) according to claim 6, characterized in that, The first slide system (41) includes a side track (R1l) extending along its length, fixed to the vertical flange (AL2) and projecting laterally, and a bottom track (R1i) projecting downward from the bottom flange (AL3).

8. The rolling equipment (1) according to claim 6, characterized in that, The first bracket (CH1) has a C-shaped structure, which has: - Bottom flange (ALi), which is guided on the bottom track (R1i) - Vertical flange (Alv), which is guided on the side rail (R1l) - Top flange (Als) which overlaps with the side edge that carries the second slide system (42).

9. The rolling equipment (1) according to claim 8, characterized in that, The top wall portion of the side edge (BL) is fan-shaped and lower than the level of the top surface of the building (B) to accommodate the top flange (Als) of the first bracket (CH1).

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