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US 4,928,476 AGranted
Two-for-one twisting machine
AssigneeMurata Kikai Kabushiki Kaisha
InventorsHiroo Otoshima, Hiroshi Tsuji, Shigeki Mori, Yoshihiro Nishimura
Life of this patent
Estimating the term…
Abstract
A two-for-one twisting machine comprising a plurality of two-for-one twisting units arranged in rows, the two-for-one twisting units each consisting of a twisting machine and a take-up device, wherein there is provided a travelling member adapted to travel in front of such plural two-for-one twisting units, the travelling member being provided with a feed package changing means and a take-up package changing means.
Claims18
A two-for-one twisting machine comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a main rod, a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- wherein said feed package changing device comprises a tensor moving device, comprising:
- a first support beam adapted to move up and down along the main rod the first support beam having a top end,
- a first arm supported slidable vertically relative to the main rod and rotatable on the main rod in the directions toward and away from the two-for-one twisting units, the first arm positioned below the first support beam and in a direction substantially perpendicular thereto,
- a first lever pivotally supported on the top end of the first arm at the intermediate portion thereof,
- a link arm pivotally supported with and connecting the top end of said first support beam and one end of said first lever,
- a driving means for driving the first arm,
- a rocking lever supported rockably by the first lever,
- two opposed chucks rockably supported by the first lever, the two opposed chucks being adapted to hold a tensor therebetween when the first arm is turned toward the two-for-one twisting units and to release a tensor held therebetween when the first arm is turned away from the two-for-one twisting units, and
- an opening/closing pin fixed to the rocking lever.
8 more elements
A two-for-one twisting machine, comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a main rod and a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- wherein said feed package changing device has a package changing device comprising:
- a support beam adapted to move up and down along the main rod, the support beam having a top end,
- an arm supported slidable vertically relative to the main rod and rotatable on the main rod, the arm having a front end,
- an exchange hand pivotally supported on the top end of the arm at the intermediate portion thereof, the arm being positioned below said support beam and in a direction substantially perpendicular thereto,
- a link arm pivotally supported with and connecting the top end of said support beam and one end of said exchange hand, and
- a driving means for driving the support beam and the arm.
5 more elements
A two-for-one twisting machine, comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting unit, said travelling member being provided with a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- wherein said feed package changing device has a yarn end finding device,
- wherein said yarn end finding device comprises:
- an upper arm,
- a box supported by the upper arm, the box having a side face
- a lower arm movable toward the two-for-one twisting units,
- a link mechanism movable toward the two-for-one twisting units,
- a connecting rod mounted to the side face of the box,
- a yarn end finding mouth fixed to the front end of the connecting rod,
- yarn conveying levers mounted to the side face of the box, and
- suction and expulsion means, operatively connected with the suction mouth, for providing a suction and blowoff of air pressure through the suction mouth.
9 more elements
A two-for-one twisting machine comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- wherein said take-up package changing device comprises a fully wound package transfer device, a yarn end transferring device, an empty take-up tube feeder and a cradle arm moving device, the two for one twisting machine being operable with a take-up package supported by the cradle arm,
- wherein said fully wound package transfer device comprises:
- a main rod secured with the machine frame,
- an arm supported by the main rod and pivotable relative to the main rod, the arm having a front end,
- a support member mounted to the front end of the arm,
- a link mechanism mounted to the front end of the arm,
- a guide plate fixed to the support member, said guide plate comprising a plate having a width at least corresponding to the take-up package width and bent guide portions which are bent vertically on both sides of the plate,
- an L-shaped supported by the arm,
- a push-out plate being supported on the arm through the L-shaped rod and arranged to abut the cradle arm to drop the full wound package from the cradle arm.
8 more elements
A two-for-one twisting machine, comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting unit,
- wherein said take-up package changing device comprises a full wound package transfer device, a yarn end transferring device, an empty take-up tube feeder and a cradle arm moving device,
- wherein said yarn end transferring device comprises:
- a bracket fixed to the machine frame,
- a first arm supported rotatably on the bracket,
- a second arm mounted rotatably on the first arm, the second arm having a front end portion,
- a link rod extending between the bracket and the second arm, and
- a yarn holding member mounted at the front end portion of the second arm.
6 more elements
A two-for-one twisting machine, comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- wherein said take-up package changing device comprises a full wound package transfer device, a yarn end transferring device, an empty take-up tube feeder and a cradle arm moving device,
- wherein said empty take-up tube feeder comprises:
- a shaft fixed to the machine frame,
- a first arm pivotally supported by the shaft, the first arm having a front end and a base end,
- a stationary pawl fixed to the front end of the first arm,
- a movable pawl pivotally supported by the front end of the first arm,
- a lever pivotally mounted to the base end portion of the first arm, the lever having a first end and a second end,
- a link rod connecting the first end of the lever and the movable pawl,
- a cam follower mounted on the second end of the lever, and a cam plate having a peripheral surface being in abutment with the cam follower, the cam plate being fixed to the shaft.
8 more elements
A two-for-one twisting machine, comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- wherein said take-up package changing device comprises a full wound package transfer device, a yarn end transferring device, an empty take-up tube feeder and a cradle arm moving device,
- wherein said cradle arm moving device comprises:
- a rotatable driving shaft,
- a driven shaft,
- a plurality of link levers connecting the driving shaft with the driven shaft,
- a bracket mounted to the driven shaft,
- a first arm secured to the bracket, the first arm having a front end,
- a cradle arm opening member secured to the front end of the first arm in a position wherein the turning motion of the driving shaft opens the cradle arm by the cradle arm opening member.
7 more elements
A two-for-one twisting machine comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel in front of said plural two-for-one twisting units, said travelling member being provided with a feed package changing device operable with the two-for-one twisting units, and a take-up package changing device operable with the two-for-one twisting units,
- a rail disposed adjacent the two-for-one twisting units,
- wherein said travelling member comprises an automatic package changing machine movable along the rail and having a machine frame provided with an upper side and a lower side,
- wherein the feed package changing device and the take-up package changing device are provided on the lower and the upper side of a machine frame, respectively,
- wherein said feed package changing device comprises a tensor moving device, a package changing device and a yarn end finding device,
- wherein said two-for-one twisting units are arranged in two rows back to back and said travelling member is freely movable along and around the two rows of the two-for-one twisting units,
- a plate arranged adjacent an end of the rows of the two-for-one twisting units, said plate having a guide slot including a curvilinear and arcuate portion, wherein the travelling member includes a guide roller arranged to move along the guide slot.
5 more elements
A two-for-one twisting machine operable with a plurality of feed packages and a plurality of take-up packages, the two-for-one twisting machine comprising:
- a plurality of two-for-one twisting units, each twisting unit being operable to wind yarn from one of the feed packages to one of the take up packages;
- conveying means, arranged adjacent the twisting units, for conveying feed packages adjacent the twisting units;
- a traveling member movable adjacent the conveying means and the twisting unit;
- and
- feed package changing means for replacing the feed packages from which the twisting units have wound yarn with feed packages conveyed by the conveying means, the feed package changing means being supported by the traveling member;
- wherein the feed package changing means is movable with the traveling member adjacent the conveying means and the twisting units.
3 more elements
A two-for-one twisting machine comprising:
- a plurality of two-for-one twisting units arranged in rows, said two-for-one twisting units each having a twisting machine, at least one feed package and a take-up device,
- a travelling member adapted to travel adjacent the plural two-for-one twisting units, said travelling member being provided with a main rod and a feed package changing device operable with the two-for-one twisting units, said feed package changing device having a tensor moving device comprising:
- a first support beam adapted to move along the main rod,
- a first arm supported slidably relative to the main rod and rotatable on the main rod toward and away from the two-for-one twisting units,
- a first lever pivotally supported by the first arm,
- a link arm pivotally supported with and connecting the first support beam and one end of said first lever,
- a driving means for driving the first arm,
- a rocking lever supported rockably by the first lever,
- two opposed chucks rockably supported by the first lever, the two opposed chucks including holding means for holding a tensor therebetween when the first arm is turned toward the two-for-one twisting units and to release tensor held therebetween when the first arm is turned away from the two-for-one twisting units.
6 more elements
A two-for-one twisting machine comprising:
- a plurality of two-for-one twisting units arranged in rows, each of said units having at least one feed package,
- a travelling member adapted to travel adjacent the plural two-for-one twisting units, said travelling member being provided with a main rod and a feed package changing device operable with the two-for-one twisting units, said feed package changing device having a package changing device comprising:
- a support beam adapted to move along the main rod,
- an arm supported slidable relative to the main rod and rotatable on the main rod,
- an exchange hand pivotally supported on the arm,
- a link arm pivotally supported with and connecting the support beam and the exchange hand, and
- a driving means for driving the support beam and the arm.
4 more elements
Dependencies are inferred from the claim text.