Abstract: A jack and upper needle dial for circular knitting machine for fabricating double-knitting plush fabric includes an outer and inner curl sinker plate, an upper needle dial for holding the outer and inner curl sinker plate and a jack, and a sinker ring. The sinker ring may drive the outer and inner curl sinker plate to couple with a knitting needle to perform tucking and sinking loop operation for generating loop effect at both sides of the plush fabric. The outer and inner curl sinker plate may be moved smoothly in the jack without hitting the sinker ring and may prevent the sinker ring and outer and inner curl sinker plate from damaging.

Abstract: An improved structure of press ring and steel ring for adjusting steel ring wearing to enable a circular knitting machine to function normally. The transmission mechanism of the circular knitting machine includes a frame, a lower transmission gear, a steel ring set, a press ring, a needle drum seat and a spindle. The frame has an adjustment element located therein and a bulged ring at the outer side. The press ring is located above the bulged ring and with a washer interposed therebetween. The adjustment element may be unfastened to release pressing force of the press ring against the steel ring set for replacing the washer with a new and thinner washer, then the adjustment element may be fastened again to press the steel ring set to eliminate the gaps between the steel ring set and the frame, lower transmission gear and press ring whereby the spindle may drive the lower transmission gear smoothly for the circular knitting machine to operate normally.

Abstract: An improved structure for adjusting the gap between an anchor seat and a needle drum seat of a circular knitting machine, and particularly an anchor seat coupled with a cam, has a fine tune bore and a positioning bore formed in the anchor seat, and a slide trough formed at the bottom side of the anchor seat for housing a slide block. A positioning bolt is provided to fasten the slide block to the anchor seat, and a fine tune bolt is provided to fasten the anchor seat and slide block to a lower lozenge ring. Through a lightly tapping on the anchor seat and fastening and unfastening the fine tune bolt and positioning bolt, the gap between the anchor seat and needle drum seat may be adjusted precisely thereby to prevent the needles located in the needle drum seat from hitting the cam or dropping, and enable the circular knitting machine to perform knitting operation smoothly and precisely.

Abstract: A computer-controlled ground mesh jacquard knitting machine. The machine includes a set of yarn feeders supported on the machine base, a set of needles mounted on a needle cylinder, a set of first needle jacks respectively coupled to the needles, a set of second needle jacks respectively coupled to the first needle jacks, a lifting cam device controlled to lift the needles and the first needle jacks. The lifting cam device includes needle lifting guide blocks and flat guide blocks and needle descending guide blocks respectively arranged in an outertrack thereof, and the needle lifting guide blocks are arranged in an inner track thereof, and a needle selector is mounted below the lifting cam device, wherein the needle selector is controlled to selectively drive the second needle jacks when the needles and the first needle jacks are moved by the lifting device causing the needles to achieve a ground mesh jacquard knitting operation.

Abstract: A needle selection structure used in a rib knitting machine or interlocking knitting machine, which includes a computer-controlled needle selection unit arranged on a cover plate above a needle dial, and controlled by an external computer to move selection jacks, enabling plate needles to be selectively extended out to act with cylinder needles in knitting a yarn into a ribbed or interlocking fabric.

Abstract: A double-loop towel may be knitted in either a pile loop or non-pile pattern by a circular knitting machine having an inner pile jacquard mechanism which includes a selector and a selection jack for controlling the knitting operation.

Abstract: In a circular knitting machine shut-down positioning and needle/feeder position control method, two signals of 90.degree. phase difference are obtained from an encoder and then processed through a pulse generator for controlling the positioning of the forward/reverse rotation of the needle signal for controlling the positioning of the forward/reverse rotation of the needle cylinder and the value of the distance between the point of origin of the needle cylinder and the point of origin of the encoder are inputted into a needle position processing circuit for processing into a control signal, permitting the control signal thus obtained to be inputted into a main control circuit of the circular knitting machine for determining the real position of the first needle and the first feeder of the circular knitting machine.

Abstract: A fabric rolling-up device control circuit assembly connected to a knitting machine to control the operation of a fabric rolling-up device in rolling up fabric knitted by the knitting machine, including a power circuit, an analog signal processor, a power amplifier controlled by the analog signal processor to turn on the motors of the fabric-rolling up device in rolling up the fabric, a speed regulation circuit for regulating the revolving speed of the motors, a torsion regulation circuit controlled by a number of revolution detector and an auto torsion adding control circuit to increase the torsion force of the motors automatically, an external abnormal signal detector adapted for turning off the motor when the knitting machine is stopped, and an abnormal signal detector adapted for turning off the knitting machine when the motors are in an abnormal status.

Abstract: A needle selection device including a plurality of push jacks respectively mounted in the needle slots of the needle cylinder of a circular knitting machine, a plurality of lifting bars respectively mounted in the needle slots and selectively driven by the push jacks to lift respective needles, and an electromagnetic device mounted on the cam of the circular knitting machine and moved by it to pass from one lifting bar to another, wherein each lifting bar is balanced in one needle slot on a fulcrum at its center and moved by the electromagnetic device between a first position in which the lifting bar will be driven by the respective push jack to lift the respective needle, and a second position in which the lifting bar will not be driven by the respective push jack to lift the respective needle.

Abstract: A rib jacquard knitting machine including dial needles arranged on the dial, cylinder needles arranged on the needle cylinder to knit loops with the dial needles, transfer needles and pelerine needles respectively arranged on the needle cylinder to make transfer stitches and eyelet stitches. A knit selector selectively drives the pelerine needles and the transfer needles into operative positions.

Abstract: A fabric holding-down sinker for a double knit machine to stop the knitted fabric from being lifted during the raising stitch of the cylinder needles. A series of such presser sinkers are reciprocated radially relative to the cylinder needles, each presser sinker having a projecting sinker head horizontally disposed at a front end. The projecting sinker head is moved to a front limit position spaced above a topmost edge of a fabric formation surface of the knitting machine at a distance equal to the thickness of the fabric being knitted during the raising stitch of the respective cylinder needle, preventing the knitted fabric from being lifted by the cylinder needles.

Abstract: A selecting mechanism for a circular knitting machine, including a hollow base, which holds pairs of selecting jacks at different elevations, and a selecting jack pushing-up device detachably fastened to the hollow base to hold pairs of pushing-up plates, wherein each pushing-up plate has a nose turned about a respective pivot between two alternative positions for controlling the positions of the pairs of selecting jacks for a full-stitch, half-stitch, or plain-stitch operation.

Abstract: A circular knitting machine includes a loop cutting mechanism to cut the loops made by the relative movement of the dial needles and cylinder needles, the loop cutting mechanism including a first sinker and a second sinker reciprocated horizontally along two opposite sides of either cylinder needle at a time difference, the first sinker having a smooth front sloping end moved to hold down the loop, the second sinker having a front sloping end turned sideways toward the first sinker and moved along the respective cylinder needle at an opposite side after the first sinker to cut the loop.

Abstract: A double knit machine which includes a series of sinker assemblies disposed corresponding to the cylinder needles of the machine for holding down the knitted fabric during the raising stitch of the cylinder needles, each sinker assembly comprised of a fixed sinker having a sinker rib for guiding out the knitted fabric, and a presser sinker reciprocated by the cam drive of the machine, the presser sinker being moved forward to press the knitted fabric against the sinker rib of the respective fixed sinker as the respective cylinder needle is extended out, or moved backward to release from the knitted fabric as the respective cylinder needle is received back.