ES2370489T3 - COIL TRANSFER WINDING PLANT FOR LAMINATED STORED MATERIAL. - Google Patents

Abstract

Winding plant for rolled-stock, with coil transfer (B) with column (5) with flag-type rotary arm (52) of the portal type (510-5101), provision being made for said flag-type rotary arm to be equipped with means for its lifting and lowering (520, 5200-5201) and at the end of the arm (521) includes engagement means for clamping by opposite clamps or jaws substantially crossed (522) capable of opening in order to grip one of said coils (B), to extract said coil from a winding reel (AV) of said winding-machines and place it after rotation outside in a respective further-working zone (B1-6).

Description

Coil transfer winding plant for laminated stored material

This invention relates to a winding plant according to the pre-characterization part of claim 1, an example of which is known from US-A 2,126,528.

Technical Field

This plant is intended in particular to be placed downstream of a strip, strip or wire rolling plant, in which the laminated stored material is wound into coils.

Prior art

In the prior art different systems are known for winding in coils of laminated stored material and also wire, for example from other plants, in a continuous manner, citing as an example:

US-A-3,796,389 describing an apparatus for winding strips placed in a feed line with a dividing system for two winding machines that alternates between one and the other during winding.

A similar plant is described in document DE-A-4035193, in which substantially a shear is cut in flight and a dividing system for division, without stopping the advance of the wire in either of the two winding machines so that while the winding is obtained in one machine it is possible to continue with the extraction of the coil in the other.

Another similar plant is explained in document EP1126933 in which a handling device is associated with each winding machine to axially remove the coil from the stopped winding machine and transfer said coil to evacuation transfer means, while the other is winding .

Prior art corresponding to coil transfer columns: USA2126528; GBA1047571; USA3105653; Japan Patent Summary vol. 1996, No. 06, June 28, 1996 (06/28/1996) and JP8039146A; W096 / 30137A.

Disadvantages of the prior art

The known solutions have operating speed limits and also have a complex and expensive structure.

The winding process may involve shutdowns due to entanglements and coil handling and storage arrangements are not practical and rather slow.

The machines are bulky.

Therefore both systems have one or more of the drawbacks and limitations mentioned above.

In particular, the solution EP1126933 is very complex and particularly inefficient with a limited speed of the opening and closing action of the reel that takes place with a system in the form of a flag opening lid, with all the resulting drawbacks. The complexity of the last solution is also derived from the collection and movement system of the coil formed by means of ground guide rails, cars, etc. All these ways make the system very complex, cumbersome and difficult to access and difficult to maintain. In conclusion it is unreliable The operating speed is further limited by the complex structure of the wire entry and control systems of the coil after the collection training.

Objective of the present invention

The objective of the present invention is to avoid the aforementioned drawbacks, improve the performance of the plant and improve the quality and / or reduce the cost of the treated material.

Summary of the invention

The winding plant according to the present invention is concretized according to the characteristics of claim 1.

The characteristics of the dependent claims relate in particular to advantageous embodiments.

Advantages

The advantages obtained meet the pre-established objective and in particular allow to achieve versatile performance and also allow to obtain a qualitatively good product with a reduced production cost.

All this is obviously favored by the vertical axis coil extraction system.

Brief description of the drawings

The features of the invention and other related features will be better understood with the help of the attached figures as a non-limiting example, in which:

Fig. 1 shows a schematic side view of the winding plant applied to the final part of a rolling line during the winding phase or winding in a first winding machine of two adjacent coordinated winding machines supplied by a shunt with a shear from cut to flight,

Fig. 1A represents the phase of depositing the coil in the link station.

Fig. 2 represents an overview of the plant of Fig. 1 in which it is possible to see the two adjacent winding machines associated with a transfer flag, namely with a column with a rotating hanging arm to extract the coils of any of the winding machines and unloading said coils at a subsequent link, transfer and storage station Fig.2A.

Figs. 3A and 3B represent, in an elevated side view, the painel transfer device as in the previous figures, respectively without coil, lowered and with elevated coil for transfer by means of rotation.

Fig. 3C depicts a plan view of a coil pick-up device with four jaws, placed at the end, under the portal arm of the pain transfer device.

Figs. 4, 4A, respectively, represent a plan and side view of a winding machine, from the feed side of the wire to be wound (AB), with the pair of wire guide jaws lowered around the winding reel of wire to allow automatic threading of the wire divided by the splitter shear on the fly (4C-2, 3) upstream, while the pair of rollers that hold the compact coil at the end of the winding is rotated upwards at a distance from the spool of winding (4B-422).

Fig. 5 shows a view of the phase immediately after the wire threading and the start of the winding (F), with the opposite jaws (4C-431) of the wire guide raised immediately with a short decoupling movement from the position Prior to wire guidance, this movement is very fast, since it is not integrated into the total decoupling mechanism that takes place at a later stage.

Figs. 6 and 6A represent a view of the same device as in the previous figures but in which the opposite wire guide jaws are completely displaced by means of rotation in a different joint, sending them away from the winding reel (AV), while the two pairs of opposite rollers (422) have been rotated in the approach against the coil of wire that is formed in the rotation (B)

Fig. 7 represents an enlarged view of the construction details of the wire winding reel for coil formation (winding reel), in axial partial section to show the respective movement mechanism and the cooling device.

Said winder or winding reel is in the winding position.

Fig. 7A represents a view of the winding reel (AV) of the previous figure, in which in partial axial section, the movement mechanism is still visible and the latter has been transformed from a closed reel to a conical reel ( 410) and the reel flanges (411) are rotated upward, that is, towards the shaft and outward to allow axial removal of said coil (B).

Fig. 7B represents a plan view of the mandrel-reel sectors, of which there are four that form the winding reel movably, that is, the winding mandrel-reel, with a framed view of the holes internal channels, these channels are for the circulation of cooling water and thus the dispersion of the heat that the hot rolled wire introduces into the winding of the coil, together with the special external wavy shape of said tongs, to reduce possible contact with the wire and allow a better heat dispersion through aeration.

Fig. 8 depicts a front view of a reel mandrel sector (410), with a view of the respective pipe (4102) in coil forward and backward for cooling.

Detailed description of the plant together with the figures

As described in the previous figures, the winding plant (see Fig. 1-1 A, H-2A) includes a division or separation system of known type with a shear in flight, schematized with (1) that deflects the wire in two lines, alternatively in one or the other (2) respectively towards any of the adjacent winding machines (4), with the aid of suitable wire guiding means of known type (3) for winding the coil (B ). While a coil is formed in a winder machine, in the adjacent winder machine that is stopped, the complete coil is collected with a transfer device (5, ... 521).

Coil transfer (5, Fig. 1, 1A, 2, 2A, 3A, 3B, 3C)

The coil transfer equipment (5,… 521) of Fig. 1A is of the portal type, that is to say with a column (51), with a flag-type arm (52) that is rotatable (510), whose end ( 521) carries a clamping device that can be opened with a pair of clamps or opposite crossed jaws (522) for the collection and axial extraction of the coil

(B) of the winding machine (AV) of the respective winding device (4, 4A), to transfer said coil (Fig. 2) from the stopping winding machine to a subsequent link or strapping station by means of two machines Opposite link known in the art or tying machines (6) Fig. 2a, then the transfer of the coil is provided for the respective storage of tied coils (B1).

The pain transfer device is thus portal type and its rotary arm (52) can be raised and lowered by means of a fluid dynamics piston (520) for the collection and deposit action, while the rotation it is guaranteed by a corresponding motor / gearmotor (510) at the base of the column in a respective thrust block (5101).

The raising and lowering of the arm (52) are guaranteed by a box guide (520) with pairs of opposite guide rolls (5201) that run slidingly in the column with a double T section.

The collection of the coils is facilitated by the clamping device with four clamps that self-centers on the coil (B) by opening and closing by means of respective fluid-actuated cylinders for opening and closing (5220).

In this way it is understood that the transfer movement is very fast and has an outdoor exit, it is not hindered or prevents the surrounding areas thus allowing further compaction of the plant. In addition, this type of movement is manifestly very simple and very reliable with minimized maintenance.

Winding groups (4, 4A, 4B, 4C, Fig. 4, 4A, 5, 6, 6A)

The two winding groups are identical and adjacent with a wire winding spool (F) with an open spool (AV) with a vertical axis.

Each group includes, in addition to the central winding reel (AV-41), two opposite coil compacting devices (4B) in pairs of rollers (422) and two self-inserting wire guide jaws to automatically guide the wire in the beginning of the winding (4C). In the center is the reel (41) with the winding reel that can be opened (AV).

Opposite coil compacting devices (4B)

They include two respective articulated devices (42), placed on both sides of the winding reel (AV) with respect to the wire feed line that fits laterally on the reel (AB).

The rollers are mounted on an articulated arm (421) hinged with the base structure (420) and driven in rotation from a remote position (Fig. 4) to a position against the coil (B) Fig. 6. The movement is produced by means of a cylinder (4212) of base driven by fluid in the reaction arm (4210).

Said rollers (422, see Fig. 6A) are mounted in pairs in a parallelogram (4222) with pairs of opposite arms mounted on the support (4220) of the rollers and are elastically moved under pressure by respective cylinder means (4221) ) of fluid dynamics.

In this way, the movement is simple and reliable, and the guaranteed and invariable orientation of the rollers for proper control of the final turns of the coil (B) in the winding reel (4V-41) prevents it from loosening before the pick up

Coil Guide Group (4C)

The wire guide group includes two opposite semicircular jaws (431) of wire entry guide hinged to the sides, horizontally (430) and controlled by a fast-moving fluid dynamics cylinder (4311) at the end of the arm (4310) of movement of hinged jaws on the side at the base of the machine (4301) and are rotated in the shipment and the approach by means of a reaction arm (43101), driven by a base cylinder (43102 ) fluid operated. In this way, it is understood that while with the opposite base jacks (43102), the sending out and the approach of the cable entry guide jaws (431) is carried out, its final movement, which is precise and fast for coupling and decoupling of the wire, it is produced with an independent, short, fast and precise control (4311) that would otherwise be impossible with this type of action by the approach and distance motor device with a wide displacement (43102) .

The foregoing therefore allows a very high speed to be achieved and good performance is achieved, without the danger of becoming entangled or the need to reduce the speed of advance of the wire or the need to use speed adaptation circuits.

The short coupling and decoupling movement is clearly visible in Fig. 5.

Central winding group - Winding reel (4A, Figure 7, 7A, 7B, 8)

Includes the central winding reel (41) with the reel that can be closed and opened (AV), Reel opening and closing action (AV):

The opening and closing of the reel (AV), necessary for the extraction of the coil (B) once it has been completed, takes place by means of four rotating sectors in flange petals (411) with a linkage joint (4111) moved by a bushing (413) that moves axially by means of a fluid dynamics cylinder (4131-4132) driven by a fluid dynamics circuit (4133) with the transmission to the base (41330) of the reel on an axis non-rotary coaxial with respect to the rotary reel (AV).

The advantage of this solution is very important for the compact design and the simplicity of the rotation guaranteed by the shaft end connection (4131) with respect to the bushing (413).

External variation of the reel mandrel (AV)

The reel mandrel (AV) consists of four sectors, namely four sectors (410) of hinged mandrels at the base (4121) of a bottom flange (412) of coil rest reel.

In the upper part, the movable sectors of the reel-mandrel (410) are articulated (4112) to said axially movable bushing (413).

In this way, when the movable bushing (413) is raised, the upper flange petals (411) are open, that is to say orthogonal to the reel axis and allow the formation of the coil (B) during winding, and the sectors

(410) of the reel-mandrel are parallel and form a cylinder (Fig. 7).

When the coil is finished, in order to allow easy removal, the movable inner bushing (413) is removed downwards by simultaneously operating:

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the upper petals of the reel flange that close up like a flower,

-

the central sectors that re-enter the upper part (410), Fig. 7A) that determine a conical shape being the size of the upper base smaller than the lower base.

In this way, the coil (B) can be removed and facilitated by means of the clamps of the clamping device (522).

Refrigeration system

The semicircular sectors (410) of the reel-mandrel have internal holes with channels (4102). The channels carry a connection conduit (41020) with a double internal coaxial channel (41021, 41022) channel. This ensures reel cooling.

In addition, the external shape of said central sectors is undulated by means of alternate longitudinal reamed holes (4101).

In this way, the contact of the reel-mandrel surface (AV) with the coil (B) is reduced and air circulation through these longitudinal reaming holes is facilitated.

The reel (AV) rotates coaxially with the central axis by means of a motor known in the art with a connection to a conical impeller (40, 401-402)

Winding cycle

The start of the winding of the coil is produced by means of said semi-circular movable jaw device

(431) in association with the wire introduction system (AB) for the first turns attached to the side or the base reel flange (AV) of the winder. This device receives the wire (F) from the dispenser (2-3) while it is installed closely on the mandrel-reel (AV) and after the start of the first turns, the coil forming area must be quickly released. To do this in the most efficient way, a rapid rapid displacement movement is used (short rotation 4310, Fig. 5).

Subsequently, with other movements of slower and wider rotation (4310-43102) the shipment is carried out outside the wire guide jaws, leaving free the space for the approximation of said last turns 5 (422) of coil of the control rollers.

In this way, when the coil stops, the last turns are kept closed until the intervention of the clamping device (522) of the transfer device (5), whose four jaws are rotated at 45 ° to hold the coil (B) between said rollers (422).

Subsequently, the rollers (422) move away and the coil (B) is still closed by the clamping device. 10 At the same time, the spool (AV) has also been opened by tightening and closing the upper flange petals that face upwards.

In this way, the locking coil is also released internally and can be easily removed upwards with the elevation of the transfer arm (52) by painel (5) and rotated backwards for deposit in the linking machine with two groups link opposites (6). At this time the cycle is repeated, returning the jaws

15 wire guide initiators to the position adjacent to the spool core (AV) in order to receive a new wire (F) to be wound (Fig. 4).

Claims (9)

1. Winding plant for laminated stored material of the type that involves the downstream part of a rolling plant comprising

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means (1) for cutting the flight of rolling and splitting in two ways, diverting the wire in one or the other of two lines (2)

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coil winding wire inlet guide means (3);

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at least two winding machines (4) for the formation of coils (B) in which each winding machine includes a reel-mandrel (AV) that involves an outer flange that can be opened to allow the coil to be removed (B) once it has been completed, the above is associated with movable media

(43) of wire entry guide for the start of the winding for the formation of the coil (B);

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coil transfer means (5) capable of removing said coil (B) from said reel-mandrel (AV) for transferring said coil to another part;

characterized because:

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said coil transfer means (5) are made with a column (51) with a flag-type arm (52) of rotary portal type (510-5101), said flag-type rotary arm is provided to be equipped with means for its raising and lowering (520, 5200-5201) and at the end of the arm (521) coupling means are included for clamping by means of substantially crossed opposite clamps or jaws (522) capable of opening to grab one of said coils ( B), the removal of said coil from a winding reel (AV) of said winding machines and its placement after rotation of the flag-type arm (52) outside in a respective additional work area (B1-6);

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said clamping jaws (522) cooperate with a coil compacting apparatus (4B) comprising two series of opposite movable rolls (422), by means of rotating arms (421-420) and a dynamic fluid movement system ( 4212) to bring said opposite movable rollers (422) from a position rotated upward in the outward shipment, to a position against the reel formed (B) on said reel (AV), said opposite movable rollers (422) are mounted on an opposite parallelogram joint (4222) on a carrier roller (4220) with means (4221) that press elastically against said coil (B) during coil winding (B) until said opposite clamping jaws (522) they hold said coil (B) for the extraction of the reel-mandrel (AV), holding said holding coil between said opposite movable rollers (422)

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said transfer means (5) are placed for the transfer of said coil (B) from a winder machine (4) to a subsequent link machine with two opposing link groups (6) to link the coil (B) between said clamps Crusades (522).

2. Winding plant for laminated stored material according to the preceding claim, characterized because:

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said outer flange of said reel (AV) is composed of flange sectors (411), hinged on said reel by means of a link joint (4111) in order to be rotated as flower petals:

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from an open flower position, that is, substantially orthogonal radially to the axis of rotation of said reel (AV) to substantially form a closed reel for winding the laminated stored material to form said reel (B),

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to a closed flower position, that is, rotated outwardly within a diameter smaller than the inside diameter of said coil (B), to allow extraction.

3. Winding plant for laminated stored material according to claim 2, characterized in that said movement of said flange sectors (411) is produced by means of an internal movement device (413) by an internal linkage joint (4111) to said reel (AV) with an axial pipe in the central axis to said reel (4133).

Four.

Winding plant for laminated stored material according to the preceding claim, characterized in that said internal movement of said flange sectors (411) are rotatably articulated in a shaft (4131) of a non-rotating axial fluid dynamics cylinder (4132 ).

5.

Winding plant for laminated stored material according to any of claims 2-4, characterized in that:

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the mandrel of said reel (AV) includes longitudinal sectors (410) hinged on one side to the flange (4121-412) of the base reel and on the other, movable in the approach and sent outside the reel axis, from a shape External cylindrical to an external conical shape with the smaller lower base that is smaller than the inside diameter of said coil, for the removal of said coil (B), said articulated movement (4112) has the same internal moving means (4112- 413) that said flange sectors (411), so that:

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when the mandrel shape of said reel (AV-410) is cylindrical, said outer flange sectors have a reel-shaped open flower shape for coil winding;

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when the mandrel shape of said reel (AV-410) is conical, said outer flange sectors have a closed flower shape that is directed outwardly with a diameter smaller than the inside diameter of said reel (B) for removal .

6.

Winding plant for laminated stored material according to the preceding claim, characterized in that:

- said longitudinal sectors (410) include channels (4102) for the circulation of the coolant.

7.

Winding plant for laminated stored material according to the preceding claim, characterized in that:

- said circulation of the coolant takes place by means of coaxial transmission (41021,1022) in a non-rotating central axis with respect to the coil (AV).

8.

Winding plant for laminated stored material according to any of the three preceding claims, characterized in that:

- said longitudinal sectors (410) have an undulating outer surface with longitudinal reaming holes (4101).

9.

Winding plant for laminated stored material according to any of the preceding claims, characterized in that:

said movable wire entry means (43) are mounted in two dependent movements with each other:

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a first displacement of the rotating arm (4301, 4310, 43101, 43102) in approximation or upon completion of the shipment outside said reel (AV);

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a second limited and rapid displacement to and from the position of the wire guide for the formation of the first coil turns next to said reel (4311) by means of the pivot at the end of the arm of said first movement (4310).