ES2312005T3 - INSTALLATION OF METAL CABLE COIL WINDING IN A WINDING COIL WITH IMPROVED COUPLING AND SAFETY. - Google Patents

Abstract

Metallic wire/rod spooler (1) of the type with a mandrel with a vertical axis with a plurality of sectors (10) that move hinged at the base (11) in a discoidal base plate (14), in connection with upper petals (11) hinged on the upper part (110), from a position orthogonal to the mandrel axis (1-10) to form the wire/rod coil, to a position substantially directed upwards and with said sectors withdrawn at least on the upper part (10) to allow the extraction of the formed wire/rod coil, wherein it further comprises a wire insertion device (2) with a rectilinear entrance section (230) tangential to the mandrel (1-10) and a circular section (231-233) to adhere to said mandrel (1-10) as a circular arched continuation, with an arm (21) and forearm (23) that are articulated (22), operated by actuator means (24, 24') in three positions: I - a first position adhering to said cylinder mandrel (1-10) and to said base flange (14) for the entrance and conveying of the wire and the fixing of the wire in said clutch groove (141) in the flange (14); II - to a second position immediately adjacent, namely slightly detached from the first and actuated by sensor means of the completed clutch of the wire head in said groove (141) that at the same time allows said helicoidal ribbings present on the side sectors (10) in said groove (141) to pull said wire head further in said groove (141) by the speed difference existing between the advancement of the V-1 wire and the perpherical traction speed of the V-2 mandrel-reel, such that V1 <V2; III - an additional distant position outside the encumbrance of the formation of the coil when the advancing speed of the V-1 wire and the peripherical rotation speed of the mandrel are identical, namely in the condition of contemporary substantial speed V1=V2 that determines the prevalence of the speed imposed by mandrel rotation traction.

Description

Cable coil winding installation metallic in a winding mandrel with coupling and safety improved

Technical field

This invention relates to an installation of coil of wire rope coil in a winder or improved mandrel winder.

In particular with a coupling system and improved security for a mandrel with more retractable sectors movable towards the side of extraction of the coil, with a system of maximum reliability for the coupling of the cable, according to the preamble of the main claim.

This invention applies to all types of winder for winding wire or metal bars originated from an online work facility towards above, for example a hot rolling plant.

However, there is no reason to exclude the possibility that the installation of work upwards can be of another type p. ex. cold rolling, drawing, treatment the cable surface, etc.

State of the art

In the present state of the art, they are known facilities of this type.

Also, the following are known between said installations: cable insertion means that must be wrapped around the mandrel and safety means to protect against the danger of the release of the components of the element of the mandrel during its rotation are also well known. The security systems are also well known that prevent the component sectors of the winding mandrel are securely locked in a work position and not locked at the end of the work to allow the coil to be removed finished In particular US3527077 A (JOHN W. NARGANG) September 8 1970 (1970-09-08) reveals a mandrel winding with cable insertion device that has a  tangential rectilinear section of mandrel entry and a section circular to adhere to said mandrel as a continuation arched circular, involving an arm and forearm with means actuators that substantially allow the location of said insertion device adhered to said mandrel for reinforcement of the cable coupling against ribs or spaced apart  as continuation of the winding.

Disadvantages of the prior art

Security systems are first necessary to avoid the appearance of defects in the stage of cable insertion and secondly to prevent the force centrifuge determined by the high rotation speed of the mandrel during winding causes the release of these sectors of its connection system with the danger of accidents serious.

Well-known systems are insecure and not They can guarantee complete security.

The systems for cable insertion around the mandrel are necessary for operation correct installation, but the existing systems are complex, complicated and bulky and above all insecure and in consequence if a good fixing of the cable to the principle then there will be arrests that in addition to blocking the plant could cause serious and very dangerous consequences with the danger of very serious accidents, as well as the inevitable blockage of the plant.

Objective of this invention

The problem and the objective of this invention is simplify and improve the qualitative characteristics of the installation thus allowing optimum performance.

Solution to the problem and inventive concept

The problem is solved with the features of the main claim. The characteristics of the Subclaims determine preferred solutions.

Advantages

The advantages obtained with this solution are evident as these provide improved performance to the Whole winder installation.

Description of a preferred embodiment

The invention will now be better described with the help of the included Figures that include illustrative solutions Preferred, where:

Figs. 1, 2 represent a raised side schematic and plan view of the winding assembly in the preferred solution and Figs. 3, 4, 5 represent the three stages respective cable coupling.

Figs. 6, 7 represent a raised side schematic and plan view of a less preferable variant of the winding assembly and in Figs. 8, 9, 10 all three respective stages of cable coupling are represented.

Figs. 11, 13 represent a partial view of the winder with a vertical mandrel, respectively in lateral and plant elevation with the petals reduced in the position to couple the mandrel sectors with three connections safety, a superior connection through a petal tooth which is attached from the outside, a fixing connection sliding intermediary and a lower introduced connection of the base of the mandrel sectors in the plate that constitutes the flange base of the coil, and Fig. 12 looks as in Fig. 11 but with the raised petals for the release position.

Detailed description of the figures

As described in the Figures, the system includes a cable / bar winder (1) operated in a manner rotary down by an electric motor with transmission of bevel gear (Am). Said coil includes a base flange (14) and a mandrel of four sectors (10) that are mobile and are hooked on the bottom (111) and moved on the part upper from a cylindrical shape to a cone shape truncated, that is, withdrawn towards the center, by means of four petals (11) rotating on respective bolts (110) by means of a toothed connection (AD) with an axial shaft (120) that is perforated (122) for the passage of coolant and is movable vertically and axially by dynamic fluid cylinders lower (121) so that with a gear they are capable of rotate from an orthogonal position to the axis of rotation of the mandrel (1-10) Figs. 1, 6, 11 to a position towards above (Fig. 12), the first being an operational position for the formation of the coil and the second one for the extraction of the coil.

In addition the mandrel (1-10) It includes:

-

the petals in the joint (110) have a cam (112) that in downward rotation pushes sectors (10) outward and at same time the respective tooth of each petal (111) fixes the upper part of the corresponding sector (10) for security, forming a first superior safety board (IS) against the centrifugal force;

-

sayings sectors (10) are introduced at the bottom in the flange of base (14) near the joint (111) to form a second safety seal against the lower centrifugal force (IN) Y

-

a Intermediate T-shaped inner tooth (101) is provided as a  sector extension (10) that is fixed in a female groove that it is also in the form of T preventing the loosening of (1230) a substantial central body (123) that borders the movable central shaft axially (120).

In this way the sectors (10) can move freely with the T-shaped tooth (101) inside said female groove gasket 1230 but this forms a third gasket intermediate safety (IM) against danger due to force towering centrifuge such sectors can be released and projected outward before the turn formation as will be explained later with the coupling device (2).

As can be seen in the Figures the external movement of sectors (10) occurs through the rotation around base bolts (111) and against thrust of the lower elastic means (13), causing movement by cam (112). In the coil forming position cylindrical, the intermediate T-shaped tooth (101) is in abutment against the inner walls of the female fixing seat (1230) as can be seen in section A-A Fig. 13 of Fig. 11, while retiring towards the center, peeling off slightly as can be seen in the shading in Fig. 12.

Consequently, in this way a connection of triple safety is provided against centrifugal force to particularly dangerous masses in rotation before formation of the coil.

Regarding the cable insertion, it is decisive the presence only of the cable insertion device which is not semicircular but tangential with continuation in arc circular (2).

Said device includes an arm (21) and a forearm (23) with intermediate joint (22), the arm being hooked on the base (20) of the structure and operated by a first dynamic fluid jack (24) for the arm for the movement out of the coil interference and for a second dynamic fluid jack (24 ') for immediate movement of the forearm (23) outside the first turning formation surface, to operate substantially in three positions:

I-

a first position adherent to the vertical mandrel (1-10) and to the base flange (14) for the entrance and cable transport and cable fixing in the groove flange coupling (14);

II-

a second position immediately adjacent, that is slightly separated from the first and operated by a pressure sensor in the oil of said jack (24) and a motion sensor of its axis for the coupling stroke, depending on the variation of the peripheral coil speed (V2) and the feed rate of cable (VI) being VI <V2;

III-

a additional position distant outside the formation obstruction of coil when said speeds become substantially identical V1 = V2.

Naturally, the presence of the cat (24 ') in the forearm (23) allows a fast and very rapid reaction movement abrupt cable insertion device (2) outside the first turning formation surface to prevent it from occurring an obstruction, which is otherwise impossible with the means of The known technique.

A security jaw can be provided but not necessary (3), which is similar to the first and controlled as the first (Fig. 6-7) but where said jaw does not constitute a cable guide but only  a flat semicircular surface coverage over the groove (141) for the protection of the danger of releasing the cable head completed with the first device.

From the investigation carried out, this device it would be superfluous since fixation always occurs within the first coupling device (2).

The three stages of coupling are illustrated for both cases in Figures respectively from 3 to 5 for the preferred solution of Figs. 1 and 2 and in Figures 8 to 10 for Alternative figures 6, 7, with the coverage system counter protection

The operation of the coupling is developed as follows:

to)

he cable (Fig. 3) is inserted into the inlet (230) of the forearm of the coupling device whose shape is rectilinear and tangency) to the mandrel (1-10);

b)

the central part, immediately after entry (230) in the arm (23) continues with an arched section conjugated with the cylindrical outer surface of the mandrel (231) that pushes the cable in a cuneiform way in the grooved groove in a way in spiral or spike to transport the cable even additionally in traction in the groove (141), the speed of mandrel traction (V2) being greater than the discharge speed of the cable (V1); this second part comprises a pressure plate (232) that presses down the cable in the slot (141).

C)

the third part (233) only serves to retain and is flat to avoid the cable head leaks up. In that area the cable is clamped with traction determined by the difference of speed V1 <V2.

In this way it is understood that a contraguía does not if necessary, this would be provided as an aid in the case of that greater protection was needed for the security of the job.

The entire system is simplified of this way, providing maximum security and performance.

Always in the interests of security, the entire device is housed in a robust structure and is completely surrounded by metal plates to avoid any danger or accidents.

The work process is shown to then by a closed circuit camera with tracking on a control cabin and remote control for the operator.

Advantageously said coupling device (2) is substantially located in the posterior quadrant in the cable coupling side of said mandrel seen previously.

Advantageously this can be substantially placed at 45º for said quadrant, thus providing a range of superior cable insertion coverage (in the figure is at 90º).

The axial orientation is extremely advantageous, that is down because in this case the maximum extended device coverage, that is U-shaped with a coverage - more than enough - at 180º, where the device is U-shaped at the limit with only one handle that forms its rectilinear cable entry part (230) while the two remaining parts (231, 233) form a circular arc with a 180º maximum.

         \ vskip1.000000 \ baselineskip
      

References cited in the description This list of references cited by the applicant has been collected exclusively for reader information. Do not It is part of the European patent document. It has been made with the greatest diligence; the EPO however does not assume any responsibility for possible errors or omissions Patent documents cited in the description

US 3527077 A, JOHN W. NARGANG, 1970 [0006]

US 19700908 A [0006]

Claims (8)

1. Method of winding a cable in a cable winder / metal bar (1) of the type with a vertical mandrel with a plurality of sectors (10) that move engaged in the base (11) in a discoidal base support ( 14), in relation to upper petals (11) engaged in the upper part (110) of said mandrel that moves from an orthogonal position to the mandrel axis (1-10) to form a cable coil / compact bar, to a position substantially directed upwards to allow, with the removal of the upper part of said sectors (10), the extraction of the completed cable / bar coil, further comprising a cable insertion device (2) around said mandrel as means for guiding the forced insertion of the cable head into an annular coupling groove (141), said annular coupling groove being located at the base of said mandrel (1-10) and in said base flange (14), said cable insertion device (2) forming a cable coupling device in association with ribs provided in said annular coupling slot for cable narrowing, wherein said cable insertion device (2) has a rectilinear section of tangential inlet to the mandrel (1-10) and a circular section to adhere to said mandrel (1-10) as an arched circular continuation, involving an arm (21) and forearm (23) that is articulated (22), actuated respectively by a first (24) and a second (24 ' ) actuator means that substantially allow the location of said insertion device adhered to said mandrel in a closed position for said ribs or spaced apart from each other, characterized in that said ribs are helical or spike ribs and where the cable insertion device It is located in three positions:

I-

a first position adhered to said vertical mandrel (1-10) and to said base flange (14) during cable entry and transport and cable fixing in said annular coupling groove (141) in said flange (14);

II-

a second position immediately adjacent, that is slightly separated from the first position, to move said forearm (23) outside the first turning formation surface by said second actuator means (24 '), and actuated by means sensors that detect the completed coupling of the head of cable in said annular coupling groove (141) that thereto time allows said helical ribs present in the lateral sectors (10) in said annular coupling slot (141) push said additional cable head into said groove of ring coupling (141) for the existing speed difference between the cable feed "V1" and the traction speed peripheral of the mandrel coil "V2", by which V1 <V2;

III-

a additional distant position outside the obstruction of the formation coil when the cable discharge speed "V1" and the peripheral rotation speed of the mandrel "V2", are substantially identical or equivalent, that is in the condition of contemporary substantial velocity V1 = V2 that determines the prevalence of the speed imposed by the traction of rotation of the mandrel.

2. Method according to the preceding claim, characterized in that there are two of said actuator means (24, 24 '): one for said arm (21-24) for movement outside the coil as in said third phase (III ), and one for said forearm (23-24 ') for immediate movement outside the coupling area of said cable coupling device as in said second phase (II). Method according to claim 1, characterized in that, with respect to the insertion of the cable corresponding to a first quadrant of a circle defined by said mandrel, said cable coupling device is substantially placed in the second rear quadrant in the coupling side of the cable feed line in said mandrel, seen from above. Method according to claim 3, characterized in that said positioning of said cable coupling device is placed substantially downwards with respect to the winding axis of said mandrel, at 45 ° with respect to the cable feed line. 5. Method according to claim 3 or 4, characterized in that the axial orientation of said cable insertion device (2) is substantially positioned below the axis of the cable feed line and is substantially U-shaped, wherein the U-shape implies that one of its handles forms said rectilinear part for a cable entry (230) of said cable insertion device (2) in said first quadrant, while the remaining two parts covering said second and third Quadrant (231, 233) are developed with a circular arc shape conjugated to the winding mandrel, at least the third part being substantially flat, that is as a plate. Method according to claim 1 and any of the preceding claims 2-5, characterized in that in said mandrel and for said sectors (10), three fixing means are provided for safety before the start of rotation and during the rotation of said mandrel (1-10) due to the fact that:

I-

said petals in the joint (110) they have a tooth (111) that by reducing the formation rotation of coil, externally fix the respective sector (10) in the part upper to couple it against the centrifugal force, forming the First Superior Safety Board (IS);

II-

said sectors (10) are introduced at the bottom in the base flange (14) to form the second safety seal against centrifugal force (IN) Y

III-

a T-shaped internal intermediate tooth (101) is subsequently provided as an extension of each sector (10) that is set in a female slot that is also T-shaped with strike (1230) of a central connection body (123) of said mandrel.

Method according to claim 1 and any one of the preceding claims 2-6, characterized in that said petals in their articulation (110) have a cam (112) which, in a downward rotation, pushes said sectors (10) towards outside and interact against the action of a base spring (13) that expands to keep said sectors (10) removed. Method according to claim 1 and any of the preceding claims 2-7, characterized in that the entire winding device is housed in a metal protective structure that is completely closed and armed to prevent any part of the device in case of accident, obstruction or detachment of the parts is projected in the surrounding exterior area, additionally being provided with viewing means with an additional closed circuit camera for remote control and control by means of a monitor and remote control means for the operator.