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Loop transferring the performance and development of the circular knitting machine

Published on:2012/8/21 14:06:15

Keyword:Needles, knitting, circular knitting machine
Introduction:Shift circle circular knitting machine knitting fabric transfer organization, also called the Saros Organization, commonly known as the transferring cloth.

Shift circle circular knitting machine knitting fabric transfer organization, also called the Saros Organization, commonly known as the transferring cloth. It is on the basis of the basic organization of the weft in accordance with the pattern requirements, some of the coil formed from the transfer, that is, the coil transfer from one wale to the other longitudinal rows are formed. Different shift transfer organization circle with law, land Organization (flat needle, different types of Bi-Lo needle, rib Organization) and the transfer effect of perforation of the variety of patterns can be formed in knitted fabric surface ( patterns).

1 stitch transfer organization structure and characteristics
Shift circle knitted fabrics can be divided into single-sided and double-sided two categories.
Sided stitch transfer tissue is in accordance with the design of the tread pattern in claim weft plain stitch (single jersey), can be in the different needles or in different directions, forming perforations having a certain pattern effect.
Sided stitch transfer tissue is in the double-sided tissue (cotton tissue or rib) on the basis of some of the coil formed by transfer, and is divided into two types of pairs of rib and rib. They are knitted side of some of the coil to the same side of the adjacent coils, i.e. a coil of the one needle bed is moved to the adjacent needles of the same needle bed; can also make two needle bed The coil simultaneously moved to the same needle bed adjacent on the knitting needle; Thus, it can be formed many varieties.

2 shift circle fabric woven
The knitting circle shift fabric knitting method of their basic organization knitting method is basically the same, the difference is mainly shift ring. The rib stitch transfer example here.
Rib machine stitch transfer of woven fabric, usually coil to move the needle plate needles on syringes needles. Specifically in the syringe needle slot latch needle placement with expanding circle piece. Expanding needle chip is a curved spring steel, having one end fixedly mounted to the knitting needle bar and the other end close to the knitting needle rod recess. Further, on a cutout in the expansion ring piece, also called a sheet shoulder.

Installed on the shift ring rib machine used exclusively for the transfer of the cam holder and the needle selection mechanism (flower disc pendulum piece Blade, drum-type needle selection mechanism), the need to shift ring needles raised to retire location in the circle. Expanding circle piece to wear people coil, the coil expansion, and resting on the incision, followed by the needles in the needle plate (needle plate needles protruding only rose to the position of the needle, is not off the circle) through the needle bar and expand the circle piece composed space, and then the needle plate knitting needles up, hooked in the coil on the syringe needles. With the decline of syringe needles, coil slipped out at the gap between the needle rod expanding circle piece from needle-weaving. Continue to decline when the syringe needles, the stitches from the needle of the syringe needles off, and transferred to the needle plate on the knitting needle on the syringe needles, then, there is no coil. When reached before the next looped systems (large ones) knitting needles, syringes needles rise, by means of a needle latch opener (also known as needle), needle (that is, the latch closed coil transfer go the cylindrical knitting needle tongue) open, ready for weaving, thus completing the transfer process.

3 needle selection mechanism

In order for the smooth shifting circle fabric woven into, we must first select shift circle needles needle selection mechanism. The transfer needle selection mechanism on the circular knitting machine there are three types: a) a selective direct needle selection mechanism, flowery disc (both jacquard wheeled); B) selective indirect needle selection mechanism, such as the pendulum piece Blade, roller; c) selectively needle selection mechanism of the single needle, such as electronic needle selection mechanism. Mostly choose faceplate with electronic needle selection mechanism. Flower Disc needle selection mechanism is the most widely used. The following describes the structure and principle of the faceplate needle selection mechanism.

Faceplate needle selection mechanism belongs the direct needle selection mechanism, which is based on the faceplate jacquard round piece slot as needle selection element, directly shift circle circular knitting machine parts - needles following needle jack ( jacquard sheet) effect, and moves together with the working element, the needle selection. Faceplate needle selection institutional role and placed the chip Blade needle selection is the same structure, but the patterns of select needle on style than the pendulum chip and inserts much larger.

Faceplate needle selection mechanism is usually the role of syringe needles. Inserted on the syringe needles of only one needle heel, is running in a runway. Following placement of the syringe needles have a needle jack, a groove on the faceplate is the effect of the needle butt knitting needle needle jack effect, so as to reach the selected needles. Equipped with a triangle (saddle), around the syringes fitted faceplate in the lower part of the saddle. Faceplate having a plurality of grooves sheet, composed of the plurality of recesses into engagement with the needle butt, to drive flower coiled its own axis of rotation by a needle butt. In the recess of the faceplate, in accordance with the transfer of the pattern requirements corresponding to the arrangement of the transfer jack steel meters (flower m), corresponding to the non-transfer jack not arranged steel m. Needle butt groove encounter with the faceplate is equipped with steel meters the needle jack driven by the needles rises to a certain height, then transfer; the needles not mounted on steel faceplate meters grooves meet, knitting needles not will rise, so is not involved in the transfer.

Transfer on a circular knitting machine, the faceplate is tilted configuration, each faceplate share a smaller space, conducive to the increase in the number of systems into a circle (large ones). Transfer on a circular knitting machine, in order to expand the range of shift circle pattern, mostly used in the faceplate of the 144 slots and 192 slots.

Fabric weaving shift 4 laps
Transfer on a circular knitting machine, generally on the coil to move the needle of the syringe needles dial needles, syringe needle slot, placement with an expanding circle piece of tongue acupuncture 1,2,3 ...... (see Figure 1).


Expanding ring spring steel sheet is bent, and its period is fixedly mounted on the needle bar, the other end close to the needle bar recess A. Circular knitting machine designed for the transfer with triangular seat (saddle) and needle selection mechanism, and the need to shift circle needles rise to the position than retreat circle. This time expansion lap sheet wear coil, the coil extension, and resting on the sheet shoulders, as shown in Figure 1 of the knitting needle 1. Then the needle dial needles extending outwardly through the space formed by the needle bar and expanding ring sheet, such as the knitting needle 1 and the knitting needle 7 shown. Needle plate needles then moves backward (ie syringes Center Mobile), hooking in a syringe needles coil c. Syringe needles dropped. See needles and needles. With syringe needles down the coil c from syringes weave the gap between the needle lever expanding circle piece a slide-out, see the needles. When syringe needles continues to decline, the coil C is off, from the needle shown in see the needle 5 and the knitting needle 6, and transferred to the needle dial needles, see the needles 11 as shown.
When the needles reach the next looped systems (large ones), syringe needles increased, this time by means of needle tongue to open the needle, the needle tongue pushed closed, ready for normal knitting. Figure 2 is the transfer fabric weave diagram.

5 shift circle varieties instance
Transfer on a circular knitting machine, stitch transfer large ones is part of the entire device into yarn ones. The "RF" license transfer rib machine, for example. Specifications: 76.2cmXl6Gxl8F (54F entire yarn large ones, which 18F is a circle of large ones can be moved); total number of stitches: 1512; faceplate: 144 groove; speed :15-18r / min.

The shift ring rib fabric pattern shown in Figure 3. Tread 18 knitting, wherein the 6-way transfer; design should be noted that the total feed yarn the ones (54F) should be the total tread height (18) and the shift ring ones (6) multiples; devices can shift ring road (18) must also be the tread design shift ring ones (6) are integer multiples. In the present example, the device is exactly 54 Road, 18 of which the road can shift ring, just three cycles; tread width is 18 needles 1512 device has exactly 189 cycles. If not divisible, there will be displacement, pattern design pattern is too much trouble. So choose the faceplate slot number, the best choice can be divisible.
According to the pattern diagram, arrangement of the faceplate. First faceplate which a slot-chip mark, then made mark as the starting point, the number of the number of slots in accordance with the pattern in Fig encountered the "X", arranged in a steel meters until the end to a faceplate; then turn order. Of course, the shift circle rib knit diamond-shaped folds type of complex flower pattern.
Shift pattern woven circle rib fabric technology parameters are: raw materials 100/2dtex (100Nm) oak silk / cotton (ratio 75:25). Dense wool fabric eye 305-308mm/100 needle Width 86 X 2cm, weight 155-146g/m2; the light fabric Menfu 84 x 2cm, weight 156-180g/m2.
Be described, the transfer of the large ones, the need to wear yarn. Because it is just a shift ring process, not the normal knitting.


6 faceplate installation

Requires not only the the faceplate outer edge of syringes surface to maintain a certain gap (typically 0.9 to 1. Omm) installing the faceplate, faceplate groove needle jack butt meshing well; need each faceplate from The starting point should be the starting point of the alignment syringes. To do this the the syringes starting point groove alignment the first faceplate Block at machine groove, and then to the starting point of the first faceplate at the moment slot to be fixed; hand to turn the needles on the syringes with The minute groove groove, aligned with the the second faceplate seat at the machine and then make the starting point of the faceplate of the aligned moment grooves, and to be fixed. Behind the faceplate and so can be installed.

7 It should be noted that the problem of
a) in the preservation and maintenance, hedge cloth (also known as hanging cloth, buckle cloth) cloth cover on the needles in the needle plate, this and other circular knitting machine, the purpose is to prevent needle shoulder incision knitting needles easily hooked cited cloth, not easy unseating.
b) cloth can not be too tight, properly lengthen the coil length, mainly on account of the coil to be transferred into the elastic expansion piece clockwise loops need for rapid expansion caused tension mutation.
c) winding tension can not be too large, otherwise easily lead to the hole. Guarantee weaving carried out smoothly, the winding tension adjustment should be slightly smaller than the other specifications of products.
) take lag into a circle, and pay attention to the needle plate needles pressure needle is not too deep, the hole or prone.
e) woven into the yarn tension is generally controlled 5-8g appropriate. Prone holes, too prone to leakage needle.