Textiles: fiber preparation – Assembling – Formed silvers
57281, 57 90, D04H 1100
BACKGROUND OF THE INVENTION
The instant invention relates to a process for the transportation of cans between machines or devices treating or processing fiber slivers. At least one of these machines or devices is assigned a can receiving point and a can delivery point, with a can conveying device capable of travelling on a set route between the machines or devices treating or processing fiber slivers, as well as to a device to carry out such process.
In automatic can transportation the problem consists in conveying the cans from a machine or device treating or processing fiber slivers to another such machine or device. A method is known (from a draw frame) by which can conveying devices are positioned at the draw frame on which the cans are pushed out of the filling position (See German Patent Publication No. DE-PS 1,265,014). The can conveying devices (carriages) are then pushed on, each time by one can fraction so that it is able to push out the next cans. This has the disadvantage that the can conveying device must generally alter its position, when it delivers empty cans, before being able to accept the full cans. This is not only clumsy, with respect to the required drive and guidance devices for the carriages, but also requires too much space. Another problem occurring in automatic the transportation between two or more machines or devices treating or processing fiber slivers consists in the fact that these machines or devices can be different in nature, so that the can requirement or the output of cans is also different.
SUMMARY OF THE INVENTION
It is the object of the instant invention to provide a process and an automatic can conveying system which improves the operation at and/or between the machines or devices treating or processing the fiber slivers and, thus leads to savings in time and/or space.
This object is attained through the instant invention in that the can conveying device is loaded and unloaded in one position at a machine or device treating or processing fiber slivers. Thus time is saved, as the cans are not first taken from the can conveying device in the work phase in one work position, while new cans are loaded on the can conveying device later, once the can conveying device has assumed a new work position, but the can conveying device assumes a position in which loading and unloading can be effected simultaneously. Such a process leads to a more compact design of the machines or devices in the area of their can arrival and their can delivery point, since these are to be placed in such a relative arrangement that a simultaneous movement makes loading and unloading possible.
Such a machine or device is especially compact if the can conveying device is able to travel between the can receiving point and the can delivery point, since the can conveying device, according to the invention, can then be unloaded on one side and be loaded on the other side.
So that different methods for loading and unloading of the can conveying device need not be applied for the different machines or devices treating or processing fiber slivers, to be connected through the can conveying device, only one full or empty can, at a time, is advantageously loaded and at the same time one empty or full can is unloaded. In this way, one and the same loading or unloading device can be provided at each of the different machines or devices treating or processing fiber slivers for loading and unloading.
In long spinning or twisting machines it is especially difficult to replace sliver cans. Contrary to what occurs in other machines (e.g. draw frames) the cans do not travel through the machine or device and are not always conveyed to the same location of the machine or device, nor are they always taken from another, also unchanging location of the machine or device. In order to allow for optimal operation of machines and/or devices connected to each other via the can transportation system, according to the instant invention, at least two can holding locations are provided on the can conveying device, one of these
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Crowder Clifford D.
Neas Michael A.
Schubert & Salzer Maschinenfabrik AG
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