Textiles: knitting – United needle machines – Straight
Patent
1998-03-17
1999-09-28
Falik, Andy
Textiles: knitting
United needle machines
Straight
36447012, D04B 2726
Patent
active
059569786
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention relates to a knitting machine, in particular a warp knitting machine with a central control apparatus containing a computer with an input device for the establishing of the characteristic data of the knitted article to be produced and with a central control unit which is connected over a line with individual drives for aggregates of the knitting machine, in which each drive has an individual, intelligent control unit for the take-over and working-out of an appertaining program module from the central control apparatus as well as, in each case, a timer for the determination of the working position of the aggregate State of the art.
BACKGROUND OF THE INVENTION
A knitting machine of the type mentioned at the outset is known from DE-A-42 38 600. This knitting machine contains a central control unit and individual intelligent control units for the individual aggregates. The individual control units are equipped in each case with a timer. The connection between the central control unit and the individual control units occurs over an external BUS. On the individual control units program modules are provided which are necessary for the particular aggregate such as, for example, shafts, throw devices, and laying bars for the knitted product to be produced. It is disadvantageous that the coordination of the single individual control units occurs over the central control unit, onto which the signals of the individual timers are forwarded, processed and given back as control signals to the individual control units. For this the central control unit contains an additional BUS-driver. Through this design the control is not only relatively complicated, but especially also limited in the rapidity of the data exchange and of the control of the aggregates.
SUMMARY OF THE INVENTION
The problem of the invention is to improve a knitting machine of the type mentioned at the outset.
This problem is solved according to the invention by providing a knitting machine, in particular a warp knitting machine with a central control apparatus containing a computer with an input device for the establishing of the characteristic data of the knitted article to be produced and with a central control unit which is connected over a line with individual drives for aggregates of the knitting machine, in which each drive has an individual, intelligent control unit for the take-over and working-out of an appertaining program module from the central control apparatus as well as, in each case, a timer for the determination of the working position of the aggregate, characterized in that the drive of an aggregate is constructed as main drive and the appertaining timer is constructed as desired-value timer, in which system the latter is connected over a desired-value timer line directly with the individual control units of all the aggregates, in which system the remaining timers are joined as auxiliary timers in each case with the appertaining drive constructed as auxiliary drive, the whole in such manner that a pattern program input on the central control apparatus is workable on the individual control units, independently from the central control unit of the central control apparatus. By the means that each drive has an individual intelligent control unit for the take-over and working-up of an appertaining program module of the control program of the central control apparatus, and the drive of an aggregate is constructed as main drive with appertaining timer as desired value timer, the drives of all the aggregates being connected with one another over a desired-value timer line, there is yielded a substantial simplification, greater flexibility and adaptability of the drives, especially of the auxiliary drives. Thereby it is possible to load the individual control units on switching-on of the knitting machine directly in each case with the appertaining program module, so that all the drives can be regulated autonomously, i.e. without communication with the central control apparatus, and therefore more rapidly than
REFERENCES:
patent: 3820082 (1974-06-01), Bauknecht et al.
patent: 5311751 (1994-05-01), Winter et al.
patent: 5375435 (1994-12-01), Gille et al.
patent: 5473913 (1995-12-01), Bogucki-land
patent: 5502987 (1996-04-01), Zorini
patent: 5768916 (1998-06-01), Borer
Borer Silvan
Dorn Michael
Falik Andy
Pappas George
Textilma AG
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