Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-10-29
1993-03-16
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242105, 242129, B65H 1602
Patent
active
051937581
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to an apparatus for holding and for unwinding coils of tape-like or wire-like material.
Cassettes and manipulators for coils of tape-like or wire-like material are known and commonly used in a very wide range of embodiments. Known coil cassettes are generally designed for "just-in-time" production, i.e. a coil is stored in the cassette and fed to a processing machine, for example a press; there, part of the wound tape or wire is pulled off. The cassette with the partially used or unwound coil is then returned to a storage rack. Such coils and storage methods for coils are disclosed, for example, in the following publications: German Auslegeschrift 2,842,448, German Offenlegungsschrift 3,435,215, 3,417,130 and 2,639,427 and EP-A1-267357.
Since the known cassettes are designed having unwinding and storage apparatuses, for example for vertical storage and withdrawal of the tape material, they must be designed to be stable enough to perform the task. The space requirement for such cassettes is correspondingly large and the cassettes are complicated and expensive to produce. Furthermore, the cassettes generally follow the outer configuration of the coil, i.e. they are circular and correspondingly difficult to manipulate and to store.
SUMMARY OF THE INVENTION
It is the object of the invention to improve the disadvantages to date, in particular, therefore, to provide an economical, simple system which improves the possibilities for storing and handling coils, and in particular facilitates automation of storage and of handling. According to the invention, this is achieved by an apparatus having the features described herein.
Advantageous further embodiments of the invention are described as well.
By the use of a trough-like base element, open at the top, for holding the coils, various surprising advantages can be obtained in combination: on the one hand, the coil can be stored in the trough or removed from the trough in a simple manner. Furthermore, the coil can be lifted for unwinding in the trough and can be stored in a separate coil or storage arrangement during withdrawal of the tape material, without the coil having to be removed from the base element.
By means of a stiffening arrangement in the edge region of the base element, it is also possible to achieve sufficient static strength in a simple manner. This allows, for example, the holding apparatus to be moved on a rail-like support which engages the stiffening arrangement on both sides. Thus, storage can be effected in a space-saving manner, for example in a rack having support rails arranged vertically one on top of the other.
If the stiffening arrangement is in the form of a frame, tension belts can be fastened to said frame, preferably diagonally and at the surface of the frame, said belts serving to hold the coil. This ensures an extremely low weight in conjunction with adequate stability for the cassette. To allow the coil to be level on the slightly sagging tension belts and to ensure that the force applied to the tension belts by the coil weight is as uniform as possible, support elements are preferably provided. The coil itself or a coil support disk comes to rest on its level surface, while the underneath of this support element, which in particular is in the form of a U-profile, is appropriately adapted to the sag of the tension belts. This can also be achieved by appropriately shaped insert wedges fitted into the U-profile of the support elements.
Particularly this last-mentioned embodiment has the great advantage that the holding apparatus can be used in the same way for coils having different tape widths.
It is expedient if a centering means for the coil is provided in the base element. Centering means can advantageously be formed, for example, in such a way that it contributes to the stiffening of the base element. This is particularly simple if the centering means is in the form of, for example, a raised edge or a bead.
If the coil rests on a coil support disk, the centering means is pro
REFERENCES:
patent: 3162394 (1964-12-01), Culpepper et al.
patent: 3512728 (1970-05-01), Johnson
patent: 3561691 (1971-02-01), Nichols et al.
patent: 3568945 (1971-03-01), Hepner
patent: 3656700 (1972-04-01), Gauvin
patent: 4863112 (1989-09-01), Summerauer et al.
Laager Georg
Summerauer Ingomar
Bruderer AG
Jillions John M.
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