Textiles: spinning – twisting – and twining – Apparatus and processes – Doffing or donning
Patent
1982-06-02
1984-08-14
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Doffing or donning
57266, 57270, 242 355A, D01H 910, D01H 918
Patent
active
044648936
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention concerns a spinning machine, in particular a ring spinning machine, with a plurality of spinning positions arranged in a row, to which spinning positions at least one roving bobbin support each is coordinated.
It is generally known, that on spinning machines, and on ring spinning machines in particular, the exchange of roving bobbins still is effected manually. For this purpose, the full roving bobbin packages are deposited in containers in close vicinity of the machine concerned and than they are exchanged individually against empty bobbin tubes. For this purpose a number of roving bobbin support members, corresponding to the number of spinning positions, designed as self-fixing suspension devices, onto which the roving bobbins are pushed from below, are arranged on an upper horizontal frame of the machine. Considering on one hand the high weight of the roving bobbins, which today averages about 2.5 kg, but which, in the future, may reach 5 kg, and on the other hand also the great number of spinning positions of up to about 400 spinning positions or more per machine side, as used today it becomes clear that the operating personnel is subject to very heavy work loads, not to mention a certain monotony of this type of work.
SUMMARY OF THE INVENTION
Therefore, with the foregoing in mind, it is the object of the present invention to automate the exchange of the roving bobbins. For this purpose, mechanisation of the hitherto manually effected loading process, using linear moving devices, could be imagined, which, however, would result in unbearable expenses. Thus it is a further object of the present invention, to automate the exchange of the roving bobbins using a technically elegant and economically feasible concept.
These objects are achieved according to the invention in that a number of roving bobbin support members each are grouped for neighbouring spinning positions on a mobile storage device, in which arrangement the storage devices are movable individually or in pairs along the length of the machine using a transporting device, and at predetermined places can be lifted to, and lowered from respectively, the transporting device using elevator devices.
These measures now permit direct loading of the mobile storage devices at the roving producing machine automatically with full roving bobbin packages, and to move these loaded storage devices along the ring spinning machine, and to exchange them against corresponding storage devices with empty roving bobbin tubes automatically at practically any desired place along the machine.
A suitable embodiment of the present invention then consists in designing the mobile storage devices as plates, which can be exchangeably set side by side, in at least one row, in a frame, in which arrangement it proves advantageous, if the plate-shaped storage devices on their underside are provided with a plurality of self-locking suspension devices for taking up the roving bobbins.
Furthermore it proves advantageous, if the frame is designed as a rail arrangement for the transporting device, and extends above the machine, in which arrangement advantageously the transporting device is a transporting sledge or a transporting carriage, provided with at least one lifting device for taking up at least one storage device.
Furthermore it proves advantageous, if each lifting device comprises a mounting plate for its temporary mechanical and/or electromagnetic connection with a plate-shaped storage device, in which arrangement the transporting carriage furthermore supports a control and drive unit, which on one hand activates the lifting devices, and on the other hand acts onto a toothed rack rail via a motor pinion cog wheel gear.
A further embodiment of the arrangement consists in that the frame forming the rail arrangement for the transporting device extends over the face sides of the machine into transfer stations for the storage devices, holding the full and the empty bobbins, respectively, in which arrangement each transfer stat
REFERENCES:
patent: 3123967 (1964-03-01), Ingham
patent: 4023339 (1977-05-01), Laderach et al.
Kleeman Werner W.
Rieter Machine Works Ltd.
Watkins Donald
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