JPS62157996U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a wire twisting machine according to the present invention,
FIG. 2 is a block diagram of a wire breakage detection circuit for a wire twisting machine according to the present invention, and FIG. 3 is a circuit diagram of an embodiment of the wire breakage detection circuit for a wire twisting machine according to the present invention.

Claims (1)

[Claims for Utility Model Registration] (1) A first pulse generating means provided on the supply bobbin, and a second pulse generating means provided on the cab stan for supplying the wire wound on the supply bobbin.
pulse detection means, and the pulse outputs of the first and second pulse generation means are supplied, and the pulse outputs of the first and second pulse generation means are supplied to the first pulse generation means within a pulse period between consecutive pulses from the second pulse generation means. A disconnection detection device comprising a disconnection detection circuit that determines a disconnection and generates an output when the number of pulses from the disconnection detection circuit is less than a certain number. (2) The first pulse generating means is composed of first and second pulse generating elements disposed adjacent to each other on the supply bobbin, and generates pulse signals from the first and second pulse generating elements. The received second pulse, which is delayed in phase with respect to the first pulse, is differentiated and the differential signal is detected to be generated during the duration of the first pulse, thereby inputting the clock to the counter of the disconnection detection circuit. The disconnection detection device according to claim 1, which is characterized by having a normal rotation determination circuit that supplies a clock pulse to a terminal. (3) The disconnection detection circuit further receives the output of the second pulse generating means, and the output is connected to the APE terminal of the counter and the other of the AND gate to which the output of the counter is connected to one input terminal. is connected to the input terminal of the second pulse generating means, and prevents the pulse from the second pulse generating means generated first after the power is turned on from being supplied to the AND gate, and also prevents the pulse from the second pulse generating means from being input to the other input terminal of the AND gate. The disconnection according to claim 2 of the utility model registration claim, further comprising a counter operation control circuit that advances the phase of the pulse of the second pulse generating means with respect to the pulse input to the APE terminal of the counter. Detection device.