RU2340419C2 - Modified wind-up machine for rolled or drawn wire or rod - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: coiler with wire/rod coil making device comprising one reel arranged behind the wire/rod producing plant incorporates a wire/rod drawing unit with a movable rocking stripping plate and a stripping plate manipulator designed to direct the coiler reel outlet and to ensure a continuous coiling on appropriate reel. The proposed coiler incorporates also the first coiler reel outlet shifter to move the said outlet to both sides of the said reel and parallel to the reel axis and the second shifter to move the said outlet perpendicular to reel axis so as to increase the coil diameter in winding-up. One pair of opposed rollers is arrangedy nearby the stripping plate outlet to clamp and hold the wire/rod, the rollers axes (i) being parallel to each other, (ii) orthogonal to the wind-up reel. Note here that (iii) one of the aforesaid rollers features an elastic deformation in pressing against the other roller, and that both rollers (iv) are inclined in the plane parallel to the reel axis and orthogonal to the axes of constricting rollers in the direction of wire/rod sliding in the stripping plate.

EFFECT: higher wind-up quality.

13 cl, 2 dwg

Description

FIELD OF THE INVENTION

The present invention relates to a coiler for rolled or drawn wire / bar in accordance with the introductory part of the independent claim.

State of the art

Many types of coilers are known for winding rolled or drawn wire / bar. For example, GB 2058703 (April 15, 1981) describes an automatic winder with one guide tube for wire / bar, designed to be wound to both sides of the drum during winding, in the sequence of turns of the bay.

DE 0 821 666 (1951) describes a wire / rod winder system alternately for two winding drums (11, 12, Fig. 8), which comprises a device for forming turns of wire / rod after a wire / rod working installation, in which wiring is provided wire / rod (13, 14) with means (15, 13) for manipulating wire / rod wiring, which is designed to direct the wire / rod to the corresponding drum (11, 12), with a shifting means (17) intended for guiding the wire / rod onto the bay (13) on both sides above s Resp drum (11, 12) substantially parallel to the drum axis.

U.S. Pat. No. 4,664,329 (May 12, 1987, on behalf of Essex Group Fort Wayne Indian US) discloses a wire / bar segment winder system for forming a wire / bar coil that comprises phases of rotation of the mandrel as a result of contact with the outer surface of the mandrel with a moving belt and wire / rod feed to the rotating mandrel between the belt and the outer surface of the mandrel.

The belt holds the wire / rod relative to the mandrel (drum), and when the mandrel rotates, the wire / rod is wound into a coil on the outer surface of the mandrel.

The belt is kept in contact with the outer surface of the bay, and it rotates the mandrel until the entire length of the wire / rod segment is wound.

When the thickness of the bay increases, the belt pressure on the outer surface of the bay is partially weakened to adjust the tension of the belt.

The specified document according to figure 1 relates to a device for forming a coil of wire / rod in a coiler 26, 27 with a winding drum 508, located after the installation of forming a wire / rod, in which the moving rollers for wire / rod 13 and after :

- the first wire / rod wiring 24, 25 with the first wire / rod drive means 510, 511 for guiding the wire / bar from said moving rollers 13 to said winder 26, 27, and the first shear means 504 for moving the end of the guide element to bay 510, 511 on both sides above the drum 544, essentially parallel to the axis of the drum 579, 508, 588, 589, see figa and 5i, and the second shifting means 567, 577, 579, 588, 585, 581, 588, 589, 591 see also fig. 5i, designed to enable the movement of the specified the specified first element 24 of the wire / rod when retracting perpendicular to the axis of the coil, to follow the increase in the diameter of the coil during winding 544, 27, and

- an extension 510 from 24/511 to 25 of the wire / rod wiring, separated from the first 24, 25, allowing you to direct at least one section of the specified wire / rod to the specified drum immediately before winding.

Also known are Mannasmann Demag wire / rod coilers of the type described in the Schwerbundhaspel / Horizontal Heavy Coiler introductory section which utilizes a separate wire / bar wiring tool located adjacent to a bay constituting a wire / wire extension extender always always orthogonal to the winding axis drum / mandrel, and comprising two parallel plates located orthogonal to the axis of the drum / mandrel, and the specified output wire / rod moves ahead of the way, using the means of wire and / rod consisting of a plurality of rollers rotating in opposite directions, arranged on the rotation axis parallel to the drum axis, and having a function of pre-straightening or bending of the wire / rod winding bay conducive to the drum inside the respective mandrel.

In addition, also in WO 00/25952 (EP 1126935 - Danieli) disclosed (the introductory part of the independent claim), essentially the same structure as described above, with the difference that the specified extension 510, 511, 503, 500 wire / rod wiring has devices that always need to be constantly supported perpendicular to the axis of rotation of the specified drum. See also WO 00/25950 (Danieli and C. Officine Meccaniche Spa).

No. 4,664,329 further discloses a further movement means for moving the wire / bar wiring in an orthogonal direction to the axis of the drum, for adapting the end or extension of the wire / bar wiring to the diameter of a constantly growing wound bay.

Another solution is described in DE 1574385 A1 (Maschinefabrik Niehoff KG), which uses two opposing rollers for wiring a wire.

The solution described in US 4,664,329 uses a wire / bar alignment angle for variable coil sizes, in accordance with the slope of the first wire / bar wiring, which can lead to winding imperfections, such as overlapping wire / bar (on one side = end of movement winding forward) or remove it from an adjacent wire / bar (on the other hand = start of return), which, in particular, depends on the width of the coil, its diameter and the length of the first guide wire.

The solutions described in Mannesmaim Demag and WO 00/25952 (EP 1126935), which use two guide plates with vertical ends, that is, always orthogonal axis of the mandrel, are aimed at solving only part of the problem associated with the fixed position of the wire / bar extension which is identified by the indicated vertical parallel plates defining the wire before winding, so that it is always located perpendicular to the axis of the coil.

Such a solution is applicable only for a wire of small diameter compared to the diameter of the drum or the diameter of the coil, while a wire of a larger diameter (for example, a bar) and, in particular, with respect to the diameter of the wire and the inconvenient diameter of the drum, respectively, of the coil, can cause overlap leading to improper bay formation.

In fact, when maintaining the wire wiring in a perpendicular position, friction always arises between the wound wire of the last turn and the wound wire, which precisely because of its perpendicular arrangement leads to a tendency to always overlap over the already wound wire.

For this reason, in adverse or, in particular, critical conditions, the wire is laid instead of sliding along the winding layer located below, which makes the bay uneven.

Another disadvantage is that the coils, which are essentially laid almost perpendicular to the axis of the drum, lead to the formation of a bay, in which when it is removed from the movable outer flange of the drum to remove the bay and put it into a strapping machine, the side coils of the bay can weaken and unwind from the bay, which interferes with both its transportation and its subsequent strapping.

The disadvantage of the technical solution described in Mannesmann Demag, and in accordance with WO-0025952 (EP 1126935), is the excessive restriction of the wiring of the wire, which can also lead to undesirable overlapping of coils, in particular, with an important diameter.

An additional problem is the high level of friction resulting from sliding between the guide plates, which should "deflect" the wire when the main wire of the wire is installed at an angle, and as a result there is very strong wear on the guide frames, which often have to be changed. In this case, however, there remains the danger of blocking the wire as a result of the impact of the wire on the indicated sewer plates, immediately in front of the bay.

Disclosure of invention

The objective of the present invention is to eliminate the above disadvantages, which allows the formation of coils of the bay, ideally spaced from each other and without the danger of overlapping or separation of one coil from another and without the danger of blocking due to slipping or changing direction during winding.

Another objective is also to provide the possibility of forming a much better coiled coil and with less risk that its side coils can loosen or unwind during removal from the coiling mandrel or drum, and / or during its transportation to a strapping machine that is located at a distance and installed separately from the winding device.

An additional problem is the strict restriction of abrasion due to friction between the wire / bar and the wire / bar at the end of the wire / bar before winding as a result of a change in the direction of the wire / bar, which at the same time rubs against the corresponding side wall of the end of the wire / bar. An important limitation of the increase in speed in the final winding phase is associated with this, since it is known that, in particular, rolling mills designed for rolling wire / bar can operate at a much higher speed.

The last problem associated with slowing down the winding, therefore, forces to slow down the hourly production of the entire rolling mill and the production of wire / bar.

The tasks are solved by means of a device characterized by the features of an independent claim. The dependent clauses provide specific preferred embodiments.

By means of the claimed invention, it is possible to form a coil of wire / rod, with aligned and perfectly spaced apart and not overlapping turns, at a much higher winding speed compared to previous solutions, and without the danger of blocking or entanglement.

In fact, in this way, the turns of the wire / bar never overlap each other, since the wound wire / bar has the freedom to independently adapt to the slope of the already wound coil.

In addition, the friction leading to abrasion is completely eliminated when the direction is changed, and therefore the risk of blocking is reduced, and the winding speed can reach maximum values for feeding wire / rod from the rolling mill at its maximum speed.

Brief Description of the Drawings

The invention is illustrated by drawings, which show:

figure 1 is a side view of the deflecting group with the wiring of the wire / rod and the winding group, respectively, with all the wiring 4 of the wire / rod with its vertical oscillation from one side to the other side of the drum, that is, from its lower position "B" to its upper position "A", while the vertical axis of rotation of the drum 1 is located vertically;

figa is a specific embodiment of the outlet of a single oscillating wiring 4 wire / rod;

figure 2 is a top view of the device of figure 1, which better shows the system of horizontal displacement of the end of a single wire / rod for regulation in accordance with the change (increase) in the diameter of the coil R of the wire / rod F on the drum (1).

The implementation of the invention

The figures show how the wire / bar F comes from a rolling mill (but it can also come from a drawing unit), not shown in accordance with the prior art.

A wire / rod cutting tool is also installed in front of it so that when the formation of the bay R ends, the wire / rod can be deflected in accordance with the prior art to another winder (only one is shown in the drawings), thus allowing unloading of the already finished bay, and transfer it to a strapping machine, while forming another bay. Thus, in the diagram, before pulling 4 of one wire / rod, a pulling means is located, for example, made on the basis of rollers that feed wire / rod F to the input 3 of the wire / rod wiring, which is hinged, which makes it possible to roll back and forth in vertical planes 4A, 4B for each pass of turns 5, 6 and rolling in the horizontal plane 6, 8, 50, for translational removal from the drum 1, as the diameter of the bay increases.

Such solutions are known from the prior art, in which a basic structure with horizontal guides 8 is used, along which a slider moves, on which a wire / bar group 6 is mounted, on the vertical plate of which, in turn, a hinge with an articulated lever 41 at the end is mounted the specified first wiring 4 wire / rod.

Thus, the end of the wire / rod 4 may follow any point forming the bay R, in accordance with a specific program.

The single wire / rod 4 is pivotally mounted with the possibility of longitudinal movement in front of 3, 1, after the pulling system for feeding the wire / rod and after it with the same articulated vertical hinge (II) on the corresponding trolley 5 of vertical processing, for moving as vertically ( figure 2), and horizontally (figure 1), using the joint hinged in front of it (I). Thus, a single tubular wiring 4 wire / rod moves in all directions of vibration, both horizontally, following a change in the diameter of the coil R, and vertically, to move in both directions (A, B) vertically mounted drum 1, following a spiral winding, wound forward and back.

At the end of the wire / rod 4, an accompanying wire / rod device with opposite rollers 7 is installed, having a pair of rotating parallel and opposite rollers in the horizontal axis, the lower of which is mounted on a fixed bracket 70 of the extension of the roller holder, and the other is mounted on the movable bracket 72 of the roller holder pivotally mounted 722 at the ends of a single wiring 4 wire / rod. Said movable roller clip 72 can swing so that the corresponding roller can be elastically retracted from the opposite roller or brought closer to it by means of a clamping spring 73, the reaction of which is to eject by contact 40 with the end of a single wire / rod 4.

In this way, complex extenders of the wire / rod are eliminated, and the possibility of friction of the wire / rod F at the output end of the wire / rod to change direction is completely eliminated.

In addition, the use of opposite rollers eliminates any friction during sliding, which is very harmful due to the high temperature of the wire / bar.

The wear of the wire / bar wiring is eliminated, and it becomes possible to provide high speed operation, which otherwise could not be achieved using prior art wire / bar wiring solutions.

In addition, since not only the opposite rollers, but also the axial position of the opposite rollers must be in accordance with the invention orthogonal to the axis of the drum / mandrel, the wire / rod is perfectly filled with alternating continuous change of winding from right to left and left to right of the wire / rod, it is completely safe and with direction.

The compression resilience with elastic deformation can preferably be adjusted using a prior art solution (for example, by approaching and removing a spring-loaded screw (not shown).

Thus, it is possible to limit the change in the diameter of the wire / bar, and also prevent blocking.

Opposite rollers at the outer end are made with transverse recesses so that they essentially act as a pulley for the rope.

Thus, the wire / bar F cannot exit the guide because it is sandwiched between the two holding rollers 71.

If necessary, and in particular, when the wire / rod F is hooked on the drum 1, the latter begins to stretch, pulling the winding wire / rod F somewhat and maintaining its voltage.

Appropriate tension, however, cannot be obtained using the prior art wire / rod wiring system with end guide walls, as this would lead to excessive abrasion and additional friction with the risk of tearing of the coiled hot-rolled wire / rod or blocking or tangling, etc. , for example, as a result of elongation and subsequent deflection of the wire / bar. The ability to increase the tension or pulling force of the wire / bar, thus, improves the efficiency and quality of the performance during winding, while also providing the possibility of obtaining higher production speeds of the entire line of the wire / bar

In a slightly more complex technical solution, which is not shown in the drawings, at least one of the opposing holding rollers 71 can be made with a power drive.

In one preferred embodiment, the number of holding rollers, respectively, supporting rollers on the horizontal axis can be greater than two, even if this leads to the fact that the new system will become more complex and less functional.

The articulation of the front part (I) of the wire / rod 4 is very important because it allows not only fluctuations in the orientation of the 4 wire / rod 4 with respect to the vertical axis and perpendicular to the horizontal axis, in accordance with the intermediate theoretical wire / rod supply line, which, Thus, it is located in a plane parallel to the axis of the drum, but also provides the possibility of axial movement of the wire 4 of the wire / rod with its tap when it coincides with the theoretical wire / bar feed, and with an approximation, when the wire / bar wiring 4 deviates to one or the other side, since the distance from the orthogonal plane that passes through the axis of the drum 1 is essentially constant at the wire / bar outlet, but alternating at the opposite end of the front hinge 3 wiring 4 wires / rods.

This ensures maximum functionality.

Claims (13)

1. Coiler for rolled or drawn wire / bar (F) with a device for forming a coil of wire / bar (R) in a coiler having at least one drum coiler (1), installed behind the installation for the production of wire / bar containing a pulling means wires / rods (2) with movable swinging wires (4) wires / rods, means (6) for manipulating wires / rods to guide the outlet (7) of wires (4) wires / rods (F) from the side of the reel and enable continue winding for on the wire / rod (F) swings to the corresponding reel (1) of the coiler, including the first shear means (6, 5) for moving the outlet (7) of the wire / wire (4) wiring (4) in both directions relative to the drum / mandrel (1), essentially parallel to the axis of the drum / mandrel (1) and the second shifting means (8, 6) for moving the outlet (7) of the wire (4) wire / rod with the output / feed perpendicular to the axis of the drum / mandrel (1) and to increase the diameter coils (R) during winding, characterized in that at the outlet (7) of the wiring (4) wire / rod and immediately before the winding point on the drum / mandrel (1), at least one pair of opposing rollers (71) is installed to clamp and hold the wire / rod, the axes of which (i) are parallel to each other, (ii ) orthogonal to the axis of the drum / mandrel (1) for winding the wire / rod, while (iii) at least one of the two rollers is made with the possibility of clamping with elastic deformation to each other, (iv) to ensure the winding of the wire / rod ( F) with any inclination in a plane parallel to the axis of rotation of the drum / mandrel (1), and perpendicular to the axes of the limit rollers in the upward direction of the wire / rod (F) in the wiring (4). 2. Winder according to claim 1, characterized in that the processing with elastic deformation on one of the rollers (71) is performed by means of a movable bracket (72) of the roller holder pivotally (722) mounted on the side of the outlet (7) of the wire (4) of the wire / rod for forming an elastic opening similar to an output clamp, the teeth of which are formed by opposing holding rollers (71), and which is equipped with a clamping spring (73) for clamping the rollers (71) to each other, closing the clamp, thereby forming a wire holding device / bar in the outlet (7). 3. Winder according to any one of claims 1 and 2, characterized in that the opposing holding rollers (71) are made in the form of pulleys and have an outer peripheral surface with an annular recess for holding at least a substantial part of the wire / rod (F) and preventing it from escaping from opposing rollers, that is, in the axial direction relative to the rollers (71). 4. Winder according to any one of claims 1 and 2, characterized in that it comprises a drive of at least one of two opposite rollers (71) for holding the wire / rod. 5. Winder according to any one of claims 1 and 2, characterized in that the number of opposing rollers (71) for holding the wire / rod is more than two. 6. Winder according to claim 3, characterized in that the number of opposing rollers (71) for holding the wire / rod is more than two. 7. Winder according to claim 4, characterized in that the number of opposing rollers (71) for holding the wire / rod is more than two. 8. Winder according to any one of claims 1 and 2, characterized in that the wire / rod wiring (4) has, on the downstream side, the movable position of the outlet (7), essentially always equidistant from a plane orthogonal to the intermediate theoretical feed line a wire / rod passing through the axis of rotation of the drum / mandrel (1), and on the upstream side, a swivel to allow oscillation relative to at least two orthogonal axes passing through a plane orthogonal to the theoretical median or (F) wire / rod, and therefore a plane parallel and located at some distance from the plane passing through the axis of rotation of the drum (1), as well as the ability to move or move in the opposite direction along the axis (I) to compensate for the equidistance of the outlet ( 7). 9. Winder according to claim 3, characterized in that the wiring (4) of the wire / rod has, on the downstream side, the movable position of the outlet (7), essentially always equidistant from a plane orthogonal to the theoretical theoretical wire / wire feed line, passing through the axis of rotation of the drum / mandrel (1), from the side upstream - swivel to allow oscillation relative to at least two orthogonal axes passing through a plane orthogonal to the theoretical median of the wire feed (F) / Bar, and therefore a plane parallel to and disposed at a distance from the plane passing through the axis of rotation of the drum (1) as well as the possibility of movement or displacement in the opposite direction along the axis (I) to compensate for the equidistance of the outlet (7). 10. Winder according to claim 4, characterized in that the wiring (4) of the wire / rod has a downstream side of the movable position of the outlet (7), essentially always equidistant from a plane orthogonal to the intermediate theoretical wire / wire feed line, passing through the axis of rotation of the drum / mandrel (1), from the side upstream - swivel to allow oscillation relative to at least two orthogonal axes passing through a plane orthogonal to the theoretical median of the wire feed (F) and / the rod, and therefore the plane parallel and located at some distance from the plane passing through the axis of rotation of the drum (1), as well as the possibility of movement or displacement in the opposite direction along the axis (I) to compensate for the equidistance of the outlet (7). 11. Winder according to claim 5, characterized in that the wiring (4) of the wire / rod has, on the downstream side, the movable position of the outlet (7), essentially always equidistant from the plane orthogonal to the theoretical theoretical wire / wire feed line, passing through the axis of rotation of the drum / mandrel (1), from the side upstream - swivel to allow oscillation relative to at least two orthogonal axes passing through a plane orthogonal to the theoretical median of the wire feed (F) and / the rod, and therefore the plane parallel and located at some distance from the plane passing through the axis of rotation of the drum (1), as well as the possibility of movement or displacement in the opposite direction along the axis (I) to compensate for the equidistance of the outlet (7). 12. Winder according to any one of claims 6 and 7, characterized in that the wire / rod wiring (4) has, on the downstream side, the movable position of the outlet (7), essentially always equidistant from a plane orthogonal to the intermediate theoretical feed line a wire / bar passing through the axis of rotation of the drum / mandrel (1), on the upstream side, is a swivel to allow oscillation relative to at least two orthogonal axes passing through a plane orthogonal to the theoretical median of the hearth chi (F) wire / rod, and therefore a plane parallel to and located at some distance from the plane passing through the axis of rotation of the drum (1), as well as the possibility of movement or displacement in the opposite direction along the axis (I) to compensate for the equidistance of the outlet ( 7). 13. A rolling mill for the production of hot rolled wire / bar, characterized in that it comprises a winder according to any one of claims 1 to 12.

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