Textiles: spinning – twisting – and twining – Apparatus and processes – Untwisting
Reexamination Certificate
2000-03-03
2001-04-17
Calvert, John J. (Department: 3741)
Textiles: spinning, twisting, and twining
Apparatus and processes
Untwisting
C057S400000, C057S406000, C439S580000, C439S668000
Reexamination Certificate
active
06216430
ABSTRACT:
FIELD OF THE INVENTION
My present invention relates to a spinning machine with a multiplicity of electrical loads, in particular spread along the length of the machine and in different sections of the machine. The term “electrical loads” as used herein is intended to refer to motors, yarn or filament-supply mechanisms, drafting and stretching mechanisms, heating units and the local systems for supplying these loads with electrical energy.
BACKGROUND OF THE INVENTION
From DE 41 33 585, for example, a current-distribution system for a spinning machine is provided in which the conductors are in the form of conductive rails which can have the configuration of slit tubes and can be connected to a source of electrical energy and to the loads. In the current-conducting rails, terminals or connectors can be engaged under a spring force so that the terminal is received within the tube and the tube acts as an enclosure surrounding the terminal. The terminal elements themselves may have the configuration of sleeves which can have a contact tongue which, emerging from the slit tube, serves to connect the terminal to the load.
The current-conducting rails may be set in rail-like bodies or enclosures of an insulating material, especially a synthetic resin.
OBJECTS OF THE INVENTION
It is the principal object of the present invention to provide a spinning machine having a multiplicity of electrical loads, for example, motors, yarn feeders or suppliers, filament and yarn-stretching units and heating devices or the like such that the mounting and assembly costs can be reduced and thus the overall machine cost can be lowered and which will have a connection system between the electrical source and the load which is more reliable and more easily set up than earlier systems.
Another object of the invention is to provide a more versatile system for electrically supplying a plurality of electrical loads distributed along a spinning machine.
Still another object of the invention is to provide a spinning machine having an electrical distribution system which overcomes drawbacks of prior art systems.
SUMMARY OF THE INVENTION
These objects and others which will become apparent hereinafter are attained by providing an electrical-distribution system in which a cable extends along the length of the spinning machine and is composed of a plurality of cable segments each having a length corresponding to a section length of the machine and provided at its ends with plug-and-jack connectors so that the segments can be connected end-to-end by insertion of a respective plug in the jack of an adjacent segment. According to the invention, the connector at one end of each cable segment is provided with a conductor for supplying at least one of the electrical loads of the respective section of the machine and preferably all of the loads of a given type in that machine section.
More particularly, a spinning machine according to the invention has a multiplicity of spinning stations and is subdivided along its length into a plurality of sections, each of the sections having a plurality of pipes of electrical loads including motors, yarn feeders, yarn-stretching or drawing devices and yarn-heating devices. The electricity supply means for those loads includes at least one cable formed from a plurality of cable segments each extending along a respective one of the sections and formed at opposite ends with plug connectors and jack connectors plugged end-to-end with a plug connector of one cable segment plugged into a jack connector of an adjacent cable segment, and at least one section conductor extending out of at least one of the plug-and-jack connectors of each cable segment and running to at least one of the electric loads of the respective section.
Each cable segment is, advantageously, prefabricated with the plug-and-jack connector at its ends and, the section conductor is connected during fabrication of the respective section of the machine to the load or loads to be supplied by that cable segment at the side at which the machine is to be installed the cable segments are connected end-to-end.
The result is a significant reduction in mounting time. Each section of the machine, normally encompassing a multiplicity of work stations (for example 8 or 16 work stations), can be completely preassembled with the respective cable segment or segments for the particular electrical loads thereof.
Upon assembly of the individual sections at the installation site, the respective plugs-and-jacks are connected together. At one end of the cable, either at the plug or at the jack, a section conductor extends to the electrical loads of at least one type.
Within a section advantageously all of the electrical loads having the same function, i.e. of the same type, for example, the motors for driving the spindles, can be connected collectively to a respective section conductor.
According to a further feature of the invention, the jacks and/or the plugs are connected with the respective cable ends and/or the section conductor by crimp connectors. The housing or enclosure for the plugs and/or jacks may be composed of synthetic resin and can be cast around the crimp connectors to form respective housings. The housings, moreover, may be provided with fixing elements, e.g. recesses or bores, which enable the connectors which are joined end-to-end to be held together and to parts of the frame of the respective machine section. In the preferred embodiment of the invention, all of the sections are prewired with one or more cable segments and then, upon assembly of the sections to form the machine, the segments are interconnected.
REFERENCES:
patent: 4133585 (1992-12-01), None
patent: 41 33 585 (1992-12-01), None
Calvert John J.
Dubno Herbert
Hurley Shaun R
Zinser Textilmaschinen GmbH
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