US 5,557,914 AGranted

Twisting machine with external and internal control panels

AssigneeS.A.M.P. S.p.A. Meccanica di Precisione

InventorAngelo Maccaferri

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Abstract

On the cradle (9) of the twisting machine there is mounted a control panel (38) powered externally through a first slip ring (37-137) and corresponding electrical lines (35-135-235). In the control panel there is located an electronic computer (39) which controls the operation of all the internal components of the twisting machine and which, through at least one serial line (41-141) and a second slip ring (42-142), is connected to an electronic computer (40) located in the control panel which is disposed outside the twisting machine. The electronic computer (40) is associated with a keyboard and screen unit (43) for the programming and interrogation of the computers. An electrical power supply line (35) is linked to the external panel and the mechanism for supply and control of the external components of the twisting machine are provided in this panel. During operation, all the internal components of the twisting machine are controlled autonomously by the internal control panel, while the internal computer (39) communicates with the external computer (40) through the serial lines to ensure that the external components of the twisting machine operate in phase and in sequence with the internal components.

A twisting machine for producing a twisted product comprising:

a supporting frame;
a pair of opposed spindles attached to said supporting frame;
a flyer structure rotatably mounted on said pair of opposed spindles;
a cradle frame supported by said spindles inside of said flyer structure, said cradle frame including a take-up reel for the twisted product;
external components located outside of said flyer structure, each said external component having an external power supply line and an external control line associated therewith;
an external control panel arranged exteriorly of said flyer structure and including
(a) a three-phase current power feed line,
(b) a supply means for supplying a three-phase current power from said feed line to said supply lines of said external control components, and
(c) an external electronic computer having a two-wire serial line and being connected to said external control lines for controlling of said external components;
internal components located inside of said flyer structure, each said internal component having an internal power supply line and an internal control line associated therewith;
an internal control panel mounted on said cradle and including an internal electronic computer having a two-wire serial line and being connected to said internal control lines for controlling of said internal components;
and
a slip ring system arranged on one of said spindles comprising
(a) a first pair of three rings for connecting said feed line with said supply lines of said internal components, and
(b) a second pair of two rings for connecting said two wire serial lines of said internal and said external electronic computers together to enable a mutual communication and dialogue between said internal and said external electronic computers to ensure that the operation of said external components takes place in phase and in correct sequence with the operation of said internal components.

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Abstract

Claims3