Drawing Frame for a Spinning Machine
AssigneeMaschinenfabrik Rieter AG
InventorLudek Malina
Life of this patent
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Abstract
The invention relates to a spinning machine, the drafting arrangement of which comprises a drafting arrangement unit (35, 65, 95) with a first pair of rollers consisting of a first bottom roller (22, 42, 72) and a first top roller (21, 41, 71), wherein the drafting arrangement unit (35, 65 95) is configured as an assembly which is detachably fastened to the spinning machine by means of a fastening device (11, 59). The drafting arrangement unit (35, 65, 95) is preferably designed for one spinning station or as a twin drafting arrangement unit for two adjacent spinning stations. Said unit can also comprise further rollers which, together with the first pair of rollers, form a drafting zone of the drafting arrangement.
Claims30
A drafting arrangement unit (35, 65, 95) for a spinning machine, said drafting arrangement unit having a first bottom roller (22), characterized in that the drafting arrangement unit (35, 65, 95) is configured as an assembly, wherein the first bottom roller (22) is rotatably mounted via its roller axle on a base carrier (17, 47, 77) of the drafting arrangement unit (35, 65, 95), and wherein the drafting arrangement unit includes a first top roller (19, 49, 79), and the first bottom roller (22) together with the first top roller (19, 49, 79) forms a first pair of rollers which, in the operating position, forms a clamping region, and the first top roller (19, 49, 79) is fastened to the base carrier (17, 47, 77) via a load device (12, 42, 72), in particular via a pivotable guide arm, and the drafting arrangement unit (35, 65, 95) can be detachably fitted on the spinning machine by means of a fastening device (11, 59, 118), wherein the drafting arrangement unit (35, 65, 95) is designed for one spinning station or a plurality of adjacent spinning stations, thus, only for a portion of the spinning stations of the spinning machine.
The spinning machine comprising drafting arrangement units according to any one of the preceding claims, wherein the spinning machine is an air-jet spinning machine, a ring spinning machine, a funnel spinning machine, a loop spinning machine, a pot spinning machine or a preliminary spinning machine, in particular a roving frame.
A spinning machine assembly kit comprising one or a plurality of drafting arrangement unit(s) (35, 65, 95) according to any one of the preceding claims, characterized in that a plurality of drafting arrangement units (35, 65, 95) is of the same type of drafting arrangement or of different types of drafting arrangements, and that the connecting interfaces and drive interfaces, in particular to a drive shaft on the spinning machine for the purpose of driving the first bottom roller (102) of the drafting arrangement units (35, 65, 95), are compatible with regard to the fastening device (11, 59) and/or the tensioning device to the spinning stations or the drafting arrangement carrier (4) of the spinning machines, so that drafting arrangement units (35, 65, 95) with a different type of drafting arrangement can be freely assembled and interchanged at the spinning stations of the spinning machine.
A combination of a spinning machine comprising drafting arrangement units according to the preceding claims and a preliminary spinning machine for producing roving (9) from a fiber strand (3), in particular a roving frame, including one or a plurality of spinning stations (1) with in each case one twisting means (4), and preferably a drafting arrangement (2) arranged upstream of the twisting means (4), characterized in that the twisting means (4) has a whirling chamber (5) with a roving forming element (6) contained therein, wherein in the whirling chamber (5), the fiber strand (3) is given a real twist, or at least partially a real twist, by means of an air flow (32),
The preliminary spinning machine according to the preceding claim, characterized in that a winding apparatus (7), in particular a cross winder, a precision cross winder, a wild cross winder, a step precision winder or a parallel winder is allocated to said preliminary spinning machine.
A method for producing yarn, characterized by the use of the units or combinations according to any one of the preceding claims.
Dependencies are inferred from the claim text.