IL40713A

IL40713A - Thread delivery device and method

Info

Publication number: IL40713A
Application number: IL40713A
Authority: IL
Original assignee: Rosen K
Priority date: 1971-11-29
Filing date: 1972-10-31
Publication date: 1976-02-29
Also published as: BR7208350D0; NL7215780A; CH551337A; JPS4863061A; ZA727679B; CS161051B2; JPS5347154U; SU645544A3; RO60151A; ES397981A1; BE792052A; AR195508A1; DD100295A5; GB1329657A; AU4844272A; HU165987B; SE374936B; IL40713A0; CA973343A; AU464504B2

Abstract

1329657 Knitting-machines: yarn feeding K I J ROSEN 15 Dec 1971 [29 Nov 1971] 58347/71 Heading D1C A yarn feeding-storage device comprises a rotatable drum 1 and a disc 6 with radial aims for depressing the thread turns V. The drum comprises end plates 1a, b connected by bars 1c, between which the arms of the disc project. The drum is rotated on a stationary axle 2 by the machine drive 11 via a pulley 4. The disc is supported by a bearing 7 housed in an oblique slot 8 cut in the shaft 2 so that the disc is maintained in a stationary plane. Threads are guided tangentially to the drum by a guide 14 are axially displaced by the arms of the disc. [GB1329657A]

Claims

1. A thread delivery device for the positive delivery of thread to the working elements of a textile machine, comprising drum means which can be driven at a constant rotational speed synchronously with the working cycle of the working elements of the textile machine, onto which drum means the thread running off a feed bobbin can be wound in a tangential direction and off which the thread can also be tangentially wound, and a disc fixed relative to the drum means and including radial arms which project outward through longitudinal slots in the sidewall of the drum means, said disc being constantly retained in a plane which forms a small angle relative to a plane extending substantially perpendicular to the rotational axis of the drum means, the thread delivery being effected in the vicinity of the disc so that the thread turns are displaced by the disc in the axial direction of the drum means, and drive means for drivingly connecting said drum means to a machine drive associated with the textile machine so that the drum means rotates in synchronism therewith.

2. A device according to Claim 1, wherein said disc forms an angle of the order of 10 to 30° relative to the plane perpendicular to the rotational axis of the drum means.

3. A device according to Claim 1, including shaft means rotatably supporting said drum means thereon and said disc including a central hub portion positioned within the interior of said drum means and antifriction bearing means coacting between the hub portion of said disc and said shaft means, said shaft means having a groove formed therein which extends at an acute angle relative to the longitudinal axis of said shaft means, said groove accommodating therein said 40713/2

4. A device according to Claim 1, said device being connected to a textile knitting machine so that the drum means rotates in synchronism with the machine drive to deliver thread according to its requirement.

5. A device as claimed in Claim 1, further including means associated with said drum means for withdrawing thread from said drum means in a tangential direction.

6. A device as claimed in Claim 5, wherein the textile machine is a circular knitting machine having a needle cylinder rotatably driven by said drive means.

7. In a circular knitting machine having a rotatable needle cylinder and a plurality of thread processing elements for knitting a thread, a machine drive for rotating said needle cylinder, a bobbin for. supplying a thread to said thread processing elements, and a thread supply device associated with the thread between the bobbin and the thread processing elements for effecting a positive delivery of the thread to the processing elements, the improvement wherein said positive thread supply device includes : drum means mounted for rotation about an axis and adapted to have a thread wound thereon as supplied from said bobbin for forming on said drum means a thread supply including several thread windings; disc means nonrotatably connected to said drum means and rotatable in synchronism therewith, said disc means projecting outwardly beyond the periphery of said drum means for engaging the thread windings on said drum means for creating said thread supply, said disc means being fixedly retained relative to said drum means in a plane which forms a small acute angle relative to a plane which extends substantially perpendicular to the rotational axis of said drum means; 40713/2 the thread as supplied to said drum means from said bobbin being wound on said drum means in the vicinity of said disc means so that the thread windings as wound on said drum means are displaced by said disc means in the axial direction of said drum means and drive means for drivingly connecting said drum means to said machine drive for causing said drum means to rotate in synchronism with said needle cylinder.

8. A combination according to Claim 7, further including guide means coacting with the thread for causing it to be withdrawn from said drum means in a direction which is substantially tangential thereto.

9. A combination according to Claim 8, wherein said drum means is substantially cylindrical and has a plurality of axially elongated slots formed in the periphery thereof, and said disc means being positioned within the interior of said drum means and having arm portions projecting radially outwardly through said slots for engaging the thread windings which are disposed on the periphery of said drum means.

10. A combination according to Claim 8, wherein said disc means is fixed relative to said drum means so as to form an acute angle of the order of 10 to 30° relative to the plane perpendicular to the rotational axis. For the Applicant DR. REINHOLD COHN AND PARTNERS By: