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US 6,182,434 B2Granted
Spindle spinning or spindle twisting method and operating unit for carrying out this method
AssigneeVyzkumny ustav bavlnarsky
InventorsVáclav Kubový, Petr Bla{haeck over (z)}ek, Stanislav Dídek
Life of this patent
Estimating the term…
Abstract
The process is carried out on a spinning system that has a driven spindle (13) and a balloon limiter (14) concentric with it, driven in the same direction as the spindle (13) an provided with an inner work surface (44). For the purpose of reaching the high operating speed, the yarn (P) entrained by the work surface (44) and running toward the tube (23) on the spindle (13) is first always given by the centrifugal process the shape of a rotating, open loop (48), from which the yarn (P) is subsequently drawn off and coiled directly onto the tube (23). In this connection, this rotating, open loop (48) can be radially delimited by a rotating or stationary limit ring (28).
Claims32
A spindle spinning or spindle twisting process, comprising:
- feeding yarn from a feed device to an interior working surface of a balloon limiter such that the yarn is entrained on the interior working surface, said balloon limiter being positioned in a parallel relationship with respect to a spindle;
- rotating said spindle so as to wind yarn previously entrained on the working surface of said balloon limiter on a tube supported by said spindle;
- arranging said balloon limiter with respect to said spindle such that an open, rotating loop of yarn material is formed in the yarn following a departure of the yarn from the working surface of the balloon limiter and prior to the yarn coming in engagement with the spinning tube, which open, rotating loop stretches, due to centrifugal force, from a point of yarn contact on the working surface out away from said balloon limiter, and said open, rotating loop has a first loop bend section, a downstream loop bend section and an intermediate reverse bending point, which reverse bending point is at a greater radial distance from a rotational axis of said spindle than a point on said work surface from which the yarn stretches into the rotating, open loop, and the downstream bend section of said open, rotating loop has a downstream end in contact with the tube supported by said spindle, and said downstream bend section of said open, rotating loop is free from contact with said balloon limiter;
- and wherein feeding yarn, arranging said balloon limiter such that an open, rotating loop of yarn material is formed in the yarn following a departure of the yarn from the working surface of the balloon limiter and prior to the yarn coming in engagement with the spinning tube, and rotating said spindle imparts a spinning or twisting in the yarn being fed from the feed device.
1 more element
A spinning system for execution of a spindle spinning or spindle twisting process;
- comprising:
- a feed device for feeding yarn;
- a rotatable spindle for supporting a tube to receive yarn;
- a drive assembly in rotation driving engagement with said spindle;
- a balloon limiter arranged parallel with said spindle, anld said balloon limiter having an inner side defining a work surface for contact with the yarn formation material fed by said feed device;
- and
- said balloon limiter being dimensioned land arranged with respect to said spindle such that yarn previously entrained by the work surface of said balloon limiter travels directly off from said work surface into an open, rotating loop which has a first bend section, a downstream bend section, and an intermediate reverse bending point which reverse bending point is at a greater radial distance from a rotational axis of said spindle than a point on said work surface from which the yarn stretches into the rotating, open loop, and the downstream bend section of said open, rotating loop bas a downstream end in contact with the tube supported by said spindle, and said downstream bend section of said open, rotating loop is free from contact with said balloon limiter downstream of said reverse bend point.
4 more elements
A spindle spinning system for execution of a spindle spinning or spindle twisting process, comprising:
- a spindle;
- means for spinning the spindle;
- a balloon limiter:
- means for feeding yarn to an interior working surface of said balloon limiter such that the yarn is entrained on the interior working surface, said balloon limiter being positioned in a parallel relationship with respect to said spindle;
- and
- said spindle spinning system including means for forming an open, rotating loop of yarn following an initial departure of the yarn from the working surface of the balloon limiter and prior to the yarn coming in engagement with a spinning tube supported by said spindle, which open loop stretches from a point of yarn contact on the working surface out away from said balloon limiter, and said open rotating loop has a first loop bend section, a downstream loop bend section and an intermediate reverse bending point, which reverse bending point is at a greater radial distance from a rotational axis of said spindle than a point on said work surface from which the yarn stretches into the rotating, open loop, and said open, rotating loop has a downstream end in contact with the spinning tube supported by said spindle, and said open, rotating loop is free from contact with said balloon limiter downstream from said initial departure of the yarn from the working surface.
3 more elements
A spindle spinning or spindle twisting process, comprising:
- feeding yarn from a feed device to an interior working surface of a balloon limiter such that the yarn is entrained on the interior working surface, said balloon limiter being positioned in a parallel relationship with respect to a spindle;
- rotating said spindle so as to wind yarn previously entrained on the working surface of said balloon limiter on a tube supported by said spindle;
- forming an open, rotating loop of yarn material which is formed in the yarn following an initial departure of the yarn from the working surface of the balloon limiter and prior to the yarn coming in engagement with the spinning tube, which open, rotating loop stretches, due to centrifugal force, from a point of yarn contact on the working surface out away from said balloon limiter, and said open rotating loop has a first loop bend section, a downstream loop bend section and an intermediate reverse bending point, which reverse bending point is at a greater radial distance from a rotational axis of said spindle than a point on said work surface from which the yarn stretches into the rotating, open loop, and said open, rotating loop is free from contact with said balloon limiter downstream from said initial departure of the yarn from the working surface, and wherein feeding yarn and rotating said spindle receiving the yarn after being entrained on the working surface and following formation of the rotating loop of yarn imparts a spinning or twisting in the yarn being fed from the feed device.
A spindle system comprising:
- a yarn feed device;
- a twisting and coiling mechanism which receives yarn from said yarn feed device, said twisting and coiling mechanism including:
- a) a spindle and means for rotating said spindle, and
- b) a balloon limiter which is positioned in a concentric relationship respect to said spindle, said balloon limiter having an interior working surface which entrains the yarn received from said yarn feed device;
- and
- said spindle system including a direction indicating cavity which direction indicating cavity is for receiving a rotating, open loop of yarn formation material, the direction indicating cavity being defined by an outwardly extending flange section of said balloon limiter and a limit ring having an interior contact surface positioned for contact with a bend point of said rotating, open loop wherein the bend point rotates within said cavity in contact with the interior contact surface of said limit ring and is intermediate an upstream bend section of said rotating, open loop and a downstream bend section of said rotating, open loop, and said downstream bend section extends only inwardly from said reverse bend point from said direction indicating cavity into a coiling arrangement with respect to a tube supported by said rotating spindle.
3 more elements
A spinning method, comprising:
- feeding yarn from a yarn feed device to an interior working surface of a balloon limiter positioned in a concentric relationship with respect to an internal spindle;
- rotating the spindle;
- coiling yarn on a tube supported by said spindle;
- forming a rotating, open loop of yarn material at a lower end of said balloon limiter and directing said rotating, open loop of yarn material into a direction indicating cavity defined by an outwardly extending flange section of said balloon limiter and a limit ring having an interior contact surface positioned for contact with a reverse bend point of said rotating, open loop, which bend point rotates within said cavity in contact with the interior contact surface of said limiting ring and is intermediate an upstream bend section of said rotating, open loop and a downstream bend section of said rotating, open loop, and said yarn is maintained internally both with respect to the working surface of said balloon limiter and the contact surface of said limiting ring at all times of travel of the yarn within the balloon limiter and limiting ring, and said downstream bend section extends directly from the reverse bend section internally into coiling contact with the tube, and wherein feeding yarn to the interior surface of the balloon limiter and rotating said spindle receiving the yarn after formation of the rotating loop of yarn imparts a spinning or twisting in the yarn being fed from the feed device.
1 more element
Dependencies are inferred from the claim text.