Card web comb driving system in machines for the textile industr

Details Card web comb driving system in machines for the textile industr Card web comb driving system in machines for the textile industr

1992-06-17

1993-12-28

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318127, 19225, D01G 1926, H02K 4106

Patent

active

052743152

ABSTRACT:
A card web comb driving system in machines for the textile industry comprng a comb structure (27) mounted in such a way as to oscillate around a resting position under the control of elastic means (23 and 24) which accumulate mechanical energy and are associated with electrical motor means (20) of the type in which the direction of rotation can be inverted with the variation of the electrical signal. The motor means (20) is associated with a sensor (31) of the instantaneous angular position of the shaft (30) of the motor (20) and consequently of the instantaneous angular position of the comb structure (23, 26 and 27). The sensor (31) is connected to the power supply (21) of the motor (20) in order to establish a persistent oscillatory condition on the movable element of the motor (22) and consequently on the comb structure. The motor (20) can be represented by a brushless type motor or by a direct current motor with a constant excitation field. The invention provides the advantage of allowing the utilization of a structure of elastic motor truly tailored to the work that must be carried out by the card web comb and of permitting a more precise adjustement of the operating parameters of the card web comb in order to adapt the motion to various work situations.

REFERENCES:
patent: 3749991 (1973-07-01), Kuniyoshi
patent: 4329636 (1982-05-01), Uchida et al.
patent: 4678974 (1987-07-01), Guastadini
patent: 4730150 (1988-03-01), Lee et al.
patent: 5022122 (1991-06-01), Clement

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