US3054575A - Wire-reel or the like - Google Patents

Description

Sept. 18, 1962 F. GERST WIRE-REEL OR THE LIKE 3 Sheets-Sheet 1 Filed NOV. 14:, 1960 Sept. 18, 1962 F. GERST WIRE-REEL OR THE LIKE Filed NOV. 14, 1960 3 Sheets-Sheet 2 INVENTOR.

Sept. 18, 1962 F. GERST WIRE-REEL OR THE LIKE 3 Sheets-Sheet 3 Filed Nov. 14,, 1960 3,054,575 WIRE-REEL OR THE LIKE Franz Gerst, Schnlstr. 10, Ihmert, Westphalia, Germany Filed Nov. 14, 1960, Ser. No. 68,931 Claims priority, application Germany Nov. 28, 1959 3 Claims. (Cl. 242-129) The present invention relates to a coil for the continuous unwinding of bundles of wire, particularly round or profile material of a strength of more than mm.

It is known to use a coil for the drawing of thin Wire from a bundle, where a receiving device is provided in front of the pull-off drum, which is freely rotatable, and in particular on the axle of the drum, which receiving device receives a new bundle during the pull-off process and which receiving device does not join the rotation of the drum. Such coil has a vertical rotating axis and the transfer of the bundle of wire from its reserve position into the pull-off position is brought about by means of its own weight.

It is also known to provide in such winding coils controlled inwardly tilting, radially disposed arms cooperating with a wire winding drum which serves the purpose to support the bundle of wires to be formed and which release the bundle upon stopping the winding drum, in order to permit the falling off and the removing of the bundle of wires.

It is further known to form coils with a horizontal rotating axis which comprise supporting arms which constitute the winding drum and extend in axial direction and which may be tilted inwardly by means of a controllable operating sleeve, in order to release a wound bundle of wires.

It is one object of the present invention to provide a coil which applies the known principle of arranging controllable supporting arms in coils having a horizontal axis, in order to transfer axially from a receiving device to which a new bundle of wires has been applied, during the pull-off process, the new bundle immediately upon emptying of the coil to the latter, in order to continue the unwinding process without any pause.

It is another object of the present invention to provide a coil which comprises a plurality of supporting arms disposed in front of a horizontal coil which is freely rotatable and mounted in an overhung manner on an immovable axle having a smaller outer diameter than the inner diameter of the bundle and is adapted to receive the new bundle, which supporting arms extend in the receiving position about a generating line of the drum and are swingable by means of a toggle-joint drive for the transfer of the new bundle onto the drum for about 90 that is, outwardly into :a radial position of the drum.

Due to this arrangement, it is possible by simple and operatively reliable means to bring about an active moving of the new bundle onto the drum. This leads to an appreciable technical progress particularly in connection with ring-bending machines cooperating with wire-pulling units, screwor bolt pieces, since a fast feeding to the bending machines is now possible without any difficulty in spite of the fact that the very heavy bundles of wire must be applied by means of a block and tackle and this work cannot be accelerated at Will.

It is still another object of the present invention to provide a coil wherein the housing of the coil has at the other end of the drum a guide rim for the pull-off wire, which has pull-ofi" rollers which are disposed in a recess and may be formed as guide rollers.

It is yet a further object of the present invention to provide a wire coil wherein the toggle-joint drive and the supporting arms, respectively, are adjustable by means of a control rod axially movable in the hollow axle for rates atent 3,654,575 Patented Sept. 18, 1962 a simpler operation of the supporting arms, particularly by mechanical or hydraulic means.

With these and other objects in view, which will become apparent in the following detailed description, the present invention will be clearly understood in connection with the accompanying drawings, in which:

FIGURE 1 is a front elevation of the coil;

FIG. 2 is a top plan view thereof;

FIG. 3 is a longitudinal section of the coil in its receiving position;

FIG. 4 is a longitudinal section of the coil in the feeding position;

FIG. 5 is a front elevation of an embodiment in which a bending roller or trueing attachment is provided instead of the pull-off rollers; and

FIG. 6 is a view showing schematically the operative position of the latter.

Referring now to the drawings, and in particular to FIGS. :1 and 2, the coil or the like comprises, in conventional manner, a frame 1 which may have leg portions (not shown) and which carries a drum 2 freely rotatable on a horizontal axle. The drum 2 is equipped at its end face with a plurality of receiving arms 3. A guide ring 4 is is provided on the rear side of the drum 2, which guide ring 4 is rigidly secured to the frame 1. The guide ring 4 has a segment-shaped recess 5 in which is mounted a driven pull-off roller 6 rigidly secured to the frame .1. A counter roller 7 is disposed adjustably above the pull-off roller 6. The pull-off roller 6 and the counter roller 7 are preferably equipped at their periphery with grooves having a contour complementary to that of the cross-section of the wire.

The horizontal shaft of the drum 2 is formed as a hollow shaft 8 which is non-rotatably secured to the frame 1 by means of its flange 9 (FIGS. 3 and 4). A disk and a spider 10, respectively, is mounted and nonrotatably secured to the front end of the hollow shaft 8.

A control rod 11 projects through the hollow shaft 8, which control rod 1 1 carries a head 12. The control rod 11 performs a reciprocating movement by conventional mechanical or hydraulic means (not shown). Three radially disposed bellcrank levers 13 and 14 are pivotally connected to the head '12, the outer lever 14 of the bellcrank levers 13 and 14 sitting rigidly on a supporting pin 15 which is mounted in a proper bearing 10 of the spider 10. Each of the three receiving arms 3 is wedged on the corresponding pin 15 in such manner that upon pulling the control rod 1-1 into the hollow shaft 8, the receiving arms 3 are transferred from their substantially radial position into a crown-like substantially axial position.

As it may be ascertained quite clearly from FIG. 3, a coil 16 is disposed on the receiving arms 3, for instance, by means of a lifting work. This is possible during the operation of the coil, since the drum 2 is freely rotatable on the hollow shaft 8.

If now a coil 16 has run out, the drive for the control rod 11 is put into operation by an electrical contact to close an operation circuit (not shown). The con trol rod 11 is moved out (FIG. 4) and a stretching of the bellcrank lever members 13 and 14 takes place, whereby the receiving arms 3 are leveled up to assume their substantially radial position The coil 16 is transferred thereby from the receiving arms 3 to the drum 2 and, preferably, move onto .the latter so much that :the end of the wire may be inserted into the pu1l olf roller 6 and counter roller 7 which open automatically, without bending of the end of the reel.

After the pull-01f roller 6 and counter roller 7 resume again their clamping engaging position, the drive for the pull-off roller 6 is put into operation and the removal of the wire starts. In the meantime, the control rod arranged in symmetrical position.

11 is returned into its original position, and the receiving arms 3 are brought again into their loading, substantially axial position by .a proper program control. While the removed coil is in operation, a new coil may be put on the receiving arms 3 which form the crown of the coil.

It is possible, and in certain cases, of advantage, to use a set of straightening o1- trueing rollers 17, 18 and 19 (FIG. 6) instead of the pull- oil rollers 6, 7 which set of straightening or trueing rollers 17, 18 and 19 puts the wire into a substantially straight position.

In order to avoid a pendulum movement for the coil disposed on the drum, the lower half of the guide ring 4 is equipped with two supporting rollers 29 which are The supporting rollers 20 are adjustable, so that they may be arranged in accordance with the inner width of the coil.

While I have disclosed several embodiments of the pres ent invention, it is to be understood that these embodiments are given by example only and not in a limiting sense, the scope of the present invention being determined by the objects and the claims.

, I claim:

1. In a machine for straightening of wires drawn from a coil of said wires,

a frame, a freely rota-table drum carrying said coil during the drawing of said wire, a horizontally disposed, hollow shaft non-rotatably mounted on said frame,

said drum being rotatably mounted on said hollow shaft and having a smaller outer diameter than the inner diameter of said coil,

- a spider secured to the free end of said hollow shaft and disposed at the free end of said drum,

a plurality of receiving arms pivotally secured to said spider, said receiving arms extending in one of their positions in axial direction of said drum to assume a coil carrying position, and extending radially relative to said drum in the other of their positions,

a control rod axially movable in said hollow shaft,

a plurality of levers comprising two arms pivotally connected together and respectively coordinated to each of said receiving arms,

one of said lever arms being rigidly secured to the pivoted end of the corresponding one of said receiving arms and pivotally connected to the other of said lever arms, respectively, and

the other of said arms being pivota-lly connected to said one of said arms and to the free end of said control shaft, respectively,

so that upon axial movement of said control rod from its innermost position in said hollow shaft to its outermost position said receiving arms swing from their substantially axial, coil carrying position into their radial position, simultaneously moving said coil onto said drum, by means of said arms of said lever, said arms swinging from a relative angular position into an aligned position.

2. The machine, as set forth in clai-m'l, which includes a 25 housing disposed at the rear end of said drum, a guide rim formed by said housing for guiding the pull-off wire of said coil, said guide rim defining a recess and a pair of pull-oil rollers disposed in said recess and adapted to feed oli' said wire from said coil on said drum.

3. The machine, as set forth in claim 2, wherein said pull-off rollers are formed as straightening rollers.

Brown Dec. 18, 1923

Images