Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1982-08-18
1985-12-17
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 79, 414911, B65H 6706, B65G 3700, G05B 1500
Patent
active
045588309
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND AND OBJECTS OF THE INVENTION
The present invention relates to a handling unit for reelable cord-like goods, such as wire steel, or electric cables etc and more specifically to an integrated handling system for such goods in production lines.
According to Swedish Pat. No. 337 054 it is known to automatically reel cable or wire on a drum or reel. In order to improve the reeling or winding process the reel can be moved in the direction of its axis so that the cable can be wound evenly on the reel.
One disadvantage with such an arrangement is that when the reel has been filled, it has to be lowered down onto the floor, released and moved substantially manually to a new working position for further processing. Such full reels which may have a weight of several tons, are very difficult to handle and moving a reel by rolling it is both time-consuming and dangerous.
According to the published Swedish patent application No. 7901552-5 these disadvantages can be reduced by moving a reel in its axial direction along guide means from one working position to another. Furthermore, the entire stand carrying the reel can be moved forwards and backwards along rails or in the floor. This substantially reduces the number of reel loading and unloading operations and hence the necessary manual handling operations.
However, in spite of these improvements the reels must still be manually handled to a considerable extent on the floor, especially if the plant is large and includes a great number of mutually remote work stations. There is also still a need of big and heavy stand structures to carry the reels which increases the need of space and reduces the free areas required for manually handling the reels.
A further disadvantage with such known arrangements is the great risk of a loaded or unloaded reel falling from its stand, resulting in damage to it or injury to persons handling it. This can happen, inter alia, due to wear or faulty assembly of the locking device of a dismountable reel.
Another drawback with dismountable reel structures is the difficulty of achieving even and smooth rotation of the reel. If, for instance, a removable shaft or trunnions are used to keep the reel in its working position some play is needed between the shaft and the reel hub to enable mounting the reel in its working position. This play often causes erraticness in reel rotation.
It is also known to use fork trucks or the like for moving reels from one work station to another, but this is also complicated as well as space and time consuming.
Still another problem in the art of prior handling systems for cable reels is the difficulty of obtaining the precision required for fitting a reel into its proper working position at a work station, when it is rolled along the floor or conveyed by a truck.
The present invention, as defined in the appended claims, has the object of providing a solution to these problems.
SUMMARY OF THE INVENTION
In accordance with the present invention a handling unit includes a rotatable barrel carried in a yoke suspended on a rail in a conveyor rail system, said barrel being used for automatically coiling or uncoiling cordlike material at a work station. The conveyor rail system connects a plurality of work stations with a buffer store of conveying units.
By means of the invention all manual handling of said material may be eliminated, thus reducing the risk of personal injury or material damage to a minimum. The exchange of handling units at a coiling/uncoiling station where only one driving source is used will occur at least as fast as in prior art systems where often two alternately operating driving sources are used to maintain a continuous operation of a production line. When only one driving source per work station is used in accordance with the invention, the distance between two work stations at either end of a production line will always be constant, which is advantageous in controlling the process.
The proposed system is economic with energy since there is no need of lifting or lowering reels, neithe
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Levy Stuart S.
Werner David
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