KR100985116B1 - Method for producting high density knitted fabrics - Google Patents

Abstract

PURPOSE: A method for manufacturing high density knitted fabrics is provided to enable the thread entangled in a cylinder knitting needle to be knitted by securing the space for up and down movement of a cylinder needle. CONSTITUTION: The cylinder(11) of a circular knitting machine has cylinder knitting tacks of 30-42 gage which are arranged on the outer circumference of the cylinder. A thread drawing portion(24) is guided at cylinder knitting tacks so that the latch of cylinder knitting needle is normally operated.

Description

Manufacturing method of high density circular knitted fabric {METHOD FOR PRODUCTING HIGH DENSITY KNITTED FABRICS}

The present invention relates to a method for forming a high-density circular knitting fabric of low-density knitting, and in detail, to shorten the interval between the cylinder and the dial to knit the knitting at a high density, and to add up and down exposure sections of the cylinder knitting needle. It relates to a method for producing a high-density circular knitted fabric which enables to produce a high-density knitted fabric by ensuring that the knitting yarn caught in the cylinder knitting needle smoothly and easily.

Textile manufacturing is largely divided into weaving and weaving. In the former weaving, warp and weft yarns that are independent of each other cross each other to form a fabric. Intertwine to form a knit fabric. This ring is called a circular ring, but in order to distinguish the direction of the knitted fabric, the radial direction is called a wale or nose, and the upper direction is called a course or a step. If the intertwining direction is wale, it is called warp knitting.

Knitting machines for weaving weaving in which the direction of knitting is entangled are divided into flat knitting machines, circular knitting machines, elastic needle circular knitting machines, and sock knitting machines. Among them, circular knitting machines are widely used because of their excellent productivity and economy.

1 to 3, the circular knitting machine has a cylinder knitting needle 21 formed at regular intervals on an outer circumferential surface thereof so that the cylinder knitting needle 23 is embedded therein, the cylinder 11 having an upper portion of the cylinder 11 and having a constant angle. The low dial knitting track 22 is formed to include a dial 12 in which the dial knitting needle 25 is embedded, and the cylinder knitting needle 23 embedded in the cylinder knitting needle 21 of the cylinder and the dial knitting needle of the dial ( 22, the dial knitting needles 25, which are inherently arranged, are alternately arranged, and either the cylinder 11 or the dial 12 rotates, and the cylinder knitting needles 23 and 25 rotate the knitting needles 25 at regular intervals. They are cross-driven to entangle the knitting yarns in the circular knitting to form a knitting string, and by repeating this knitting process, it is configured to knit the knitting.

Specifically, the cylinder knitting needle 23 having the hook 31 and the latch 32 formed on the upper portion is guided to the cylinder knitting needle track 21 of the cylinder, and ascends and descends, thereby knitting the knitting yarn supplied from the yarn feed port of the yarn guide 13. The hook 32 is then engaged with the hook 31 and the lowering of the cylinder knitting needle 23 causes the latch 32 to operate to return the knitting yarn to the cylinder knitting needle 21 while knitting by knitting with the rotation supported by the dial knitting needle 25. Then, the cylinder 11 or the dial 12 is configured to repeatedly perform a knitting process in which one rotates at a predetermined angle to produce a knitted fabric. In conclusion, in the state where the cylinder knitting needle is knitting, the upper and lower portions of the cylinder are reciprocated for a certain period, and the knitting is intertwined with the knitting ring on the dial knitting needle. For this purpose, the hook and the latch of the cylinder knitting needle operate normally. In order to ensure that the cylinder knitting needle is exposed in the upper space of the cylinder, it is essential to secure an appropriate level of up and down sections.

However, in order to manufacture a circular knitting fabric of high-density knitting, the knitting yarn caught in the hook of the cylinder knitting needle must be closely entangled with the knitting ring held by the dial knitting needle. For this purpose, the needle is the interval between the cylinder knitting needle to hang the knitting needle and the dial knitting needle to make the knitting needle. It is most desirable to shorten the interval to a minimum distance.

In order to shorten the needle gap, which is the distance between the cylinder needle of the cylinder and the dial needle of the dial, theoretically, a method of first approaching the cylinder and the dial may be considered. The closer the cylinder and the dial, the shorter the needle spacing between the cylinder needle and the dial knitting needle, it is possible to produce a circular knitting fabric of high-density knitting. However, when the cylinder and the dial are in close proximity, the needle gap between the cylinder needle and the dial needle is shortened, while the cylinder needle needle is not properly secured while the cylinder needle needle is reciprocated up and down, so that the latch of the cylinder needle needle does not work. Since the knitting yarn caught by the hook of the cylinder knitting needle is not entangled with the knitting ring supported by the dial knitting needle, there is a problem in that knitting of the high-density circular knitting fabric is impossible.

Separately, in order to construct a high-density circular knitting fabric, for example, in Korean Patent Laid-Open Publication No. 2008-36045 (name of the invention: a method of knitting a manufactured product with a high-degree circular knitting machine), a high-density cylinder knitting needle is formed on the outer circumferential surface of the cylinder. A method of knitting high-depth circular knitting machines is disclosed that reduces the number of working knitting needles by removing certain knitting needles from knitting while batch forming and forming one or more subsequent knitting lines by the working knitting needle. However, in the knitting method of the high-definition circular knitting machine, the density of the cylinder knitting needles formed on the outer circumferential surface of the cylinder and the dial knitting needles formed on the outer circumferential surface of the dial is excessively high, resulting in excessive manufacturing cost of the equipment, and specific knitting needles are excluded from the knitting process. There is a problem that there is a high possibility that a defective product is produced due to the malfunction of the.

Accordingly, an object of the present invention is to smoothly and easily intertwine the knitting yarns caught in the cylinder knitting needles by shortening the interval between the cylinder and the dial in order to knit the knitting yarn at a high density, and at the same time, ensuring the upper and lower exposure sections of the cylinder knitting needles at an appropriate level. The present invention provides a method for producing a high density circular knitted fabric that supports high density knitting of knitting yarns.

In order to achieve the above object, in the present invention, the upper end of each cylinder knitting needle formed in the density of 30 to 42 gauge on the outer peripheral surface of the cylinder of the circular knitting machine is recessed so that the latch of the cylinder knitting needle guided to the cylinder knitting track can operate normally. There is provided a knitting inlet having a depth sufficient to be formed, and a method for producing a high-density circular knit fabric configured to secure up and down reciprocating exposure sections of a cylinder knitting needle for performing a knitting process by the depth of the knitting inlet.

According to the present invention, a method for manufacturing a high-density circular knitted fabric according to the present invention shortens the needle gap between a cylinder knitting needle and a dial knitting needle in order to knit a low-density knitting yarn at a high density, and additionally secures the upper and lower reciprocating exposure sections of the cylinder knitting needle and is caught by the cylinder knitting needle. By smoothly and easily intertwining knitting yarns, it has the effect of supporting the production of high density circular knitted fabrics.

The present invention is to close the needle and the cylinder in order to shorten the needle gap, which is the interval between the cylinder knitting needle of the cylinder and the dial knitting needle of the dial, the knitting process by the depth of the knitting inlet formed by recessing the upper end of each cylinder knitting track of the cylinder It is configured to further secure the upper and lower reciprocating exposure section of the cylinder knitting needle to perform, it is a technical idea to support the production of low-density knitting yarn knitted with high density.

The manufacturing method of the high density circular knitted fabric of this invention is demonstrated in detail with reference to drawings and an Example.

The present invention includes a cylinder in which a cylinder needle track is formed at regular intervals on the outer circumferential surface thereof, and includes a cylinder in which a cylinder needle is embedded, a dial mounted on an upper portion of the cylinder, and a dial needle needle track is formed at a predetermined angle on the upper portion, and a dial in which the needle is embedded therein. The cylinder needles inherent in the cylinder needle track of the cylinder and the dial needles inherent in the dial needle needle of the dial are alternately arranged, and either the cylinder or the dial rotates and the cylinder needles and the dial needles cross each other at regular intervals. A circular knitting machine for knitting a knitted fabric by being driven to entangle a knitting yarn to form a knitting string, and repeatedly performing such a knitting process.

Figure 4 shows in detail the cylinder of the circular knitting machine of the present invention, Figure 5 shows the operating state of the cylinder of the circular knitting machine of the present invention.

4 and 5, first, in the manufacturing method of the high-density circular knitted fabric of the present invention, the cylinder knitting track 21 is disposed on the outer circumferential surface of the cylinder 11 of the circular knitting machine at a density of 30 to 42 gauge. The upper end of the cylinder knitting track 21 is recessed to form a knitting inlet 24, so as to secure the upper and lower reciprocating exposed sections of the cylinder knitting needle 23 for performing the knitting process by the depth of the knitting inlet 24. It is composed.

A cylinder knitting needle track for vertically guiding the cylinder knitting needle on the outer circumferential surface of the cylinder of the circular knitting machine is formed at a density of 30 to 42 gauge. If the density of the cylinder knitting needles formed on the outer circumferential surface of the cylinder to guide the cylinder knitting needles up and down is less than 30 gauge, the low-knit knitting yarn is densely knitted due to the lack of density of the cylinder knitting needles guided to the cylinder knitting needles. It is not technically very difficult to achieve the object of the present invention, and the density of the cylinder knitting needle track formed on the outer circumferential surface of the cylinder exceeds 42 gauge can be said to be unreasonable in practical terms.

The cylinder knitting needle 23 guided to the cylinder knitting needle track 21 of the cylinder ascends and descends, hooking the knitting yarn 35 supplied from the yarn feeding port of the yarn guide with a hook, and then the latch is closed by the continuous descending of the cylinder knitting needle. It is operated to return the knitting yarn 35 to the cylinder knitting needle track 21 while being knitted in a manner of being entangled with the knitting supported by the dial knitting needle. For this purpose, the cylinder knitting needle 23 is exposed in the upper space of the cylinder 11 so that the latch of the cylinder knitting needle 23 operates normally. Therefore, it is essential to secure an appropriate up and down section.

In addition, in order to manufacture a high-density circular knitting fabric, the knitting yarn caught in the hook of the cylinder knitting needle must be tightly entangled with the knitting hook hanging in the dial knitting needle, and the needle spacing, which is the interval between the cylinder knitting needle hanging on the knitting needle and the dial knitting needle hanging on the knitting needle, is minimized. Shortening is most desirable.

One can consider the approach of the cylinder and the dial to shorten the needle gap, which is the distance between the cylinder needle of the cylinder and the dial needle of the dial, but in this case the needle gap between the cylinder needle and the dial needle is shortened while the top of the cylinder In this section, the section required for the cylinder needle to reciprocate up and down is not secured properly. If the upper and lower reciprocating exposure sections of the cylinder knitting needle guided to the cylinder knitting needle are not secured to a certain level or more, a latch does not work, and a knitting yarn caught on the hook of the cylinder knitting needle does not become entangled with the switching support supported by the dial knitting needle.

Accordingly, in the present invention, in order to shorten the needle gap between the cylinder needle needle 23 of the cylinder and the dial needle needle of the dial, the cylinder needle needle 23 which is closer to the cylinder 11 and the dial is guided to the cylinder needle needle track 21. ), The upper end portion of the cylinder knitting needle track 21 is recessed to form a knitting inlet portion 24 so as to secure an up-and-down reciprocating exposure section such that the latch of the N-axis can operate normally.

As described above, the upper and lower reciprocating exposure sections of the cylinder knitting needle 23 for performing the knitting process can be additionally secured by the depth of the knitting inlet portion 24 recessed at the upper end of the cylinder knitting needle track 21.

Specifically, in order to shorten the needle gap between the cylinder knitting needle of the cylinder and the dial knitting needle of the dial so as to produce a high-density circular knitted fabric, the upper end of the cylinder knitting needle track 21 is recessed. When the knitting needle inlet 24 having a depth enough to operate the latch of the cylinder needle 23 is normally operated, the upper and lower reciprocating exposure sections of the cylinder knitting needle 23 are formed by the depth of the knitting needle 24. It can be obtained additionally.

As a result, the cylinder knitting needle 23 having the hook 31 and the latch formed thereon is guided to the cylinder knitting needle 21 of the cylinder, and ascends and descends, the knitting yarn 35 supplied from the yarn feeding port of the yarn guide to the hook. In the knitting process in which the latch is actuated by a subsequent lowering of the cylinder knitting needle 23 to return the knitting yarn 35 to the cylinder knitting needle track 21 while knitting in a knitting manner supported by the dial knitting needle. Since the upper and lower reciprocating exposure sections of the cylinder knitting needle 23 are additionally secured by the depth of the inlet 24, the latch of the cylinder knitting needle 23 returned to the knitting needle inlet 24 at the upper end of the cylinder knitting needle track operates normally. The knitting yarn caught in the hook of the cylinder knitting needle forms a smooth ring easily and easily. When the cylinder knitting needle 23 completely returns to the cylinder knitting needle track in the knitting process, the hook of the cylinder knitting needle is positioned at the knitting inlet portion 24.

As described above, the knitting inlet portion 24 recessed at the upper end of the cylinder knitting needle 21 to further secure the upper and lower reciprocating exposure sections of the cylinder knitting needle 23 has a diameter of 0.5 to 0.7 mm and a depth of 1.0 to 1.5 mm. It is configured to have.

If the diameter of the knitting yarn inlet 24 recessed at the upper end of the cylinder knitting needle 21 is less than 0.5 mm, the cylinder knitting needle 23 for lowering the knitting yarn 35 to the hook is the knitting yarn inlet 24. When the diameter of the knitting yarn inlet portion 24 formed in the top of the cylinder knitting needle track 21 exceeds 0.7 mm, the density of the cylinder knitting needle 23 becomes insufficient in the cylinder and the knitting is low fineness. It is not possible to achieve the object of the present invention to provide a circular knit knitted with high density. In addition, when the depth of the knitting yarn inlet 24 recessed at the upper end of the cylinder knitting needle 21 is less than 1.0 mm, the cylinder knitting needle 23 which lowers the knitting yarn 35 to the hook is the knitting yarn inlet ( 24 is not completely returned to the cylinder knitting needle 21 when the depth of the knitting inlet portion 24 formed in the top of the cylinder knitting needle track 21 exceeds 1.5 mm. It is not guided.

Since the upper and lower reciprocating exposure sections of the cylinder knitting needle are additionally secured in the upper space of the cylinder by the depth of the knitting needle inlet formed at the upper end of the cylinder knitting track, the latch of the cylinder knitting needle operates normally, so that the knitting yarn caught in the hook is tightly connected to the hooking on the dial knitting needle. Since it can be entangled, it becomes possible to knit a high density circular knit fabric.

In conclusion, the manufacturing method of the high-density circular knit fabric according to the present invention is to reduce the interval between the cylinder and the dial in order to knit the low-density knitting yarn with high density, and to expose the upper and lower reciprocation sections of the cylinder knitting needle by the knitting inlet portion of the cylinder knitting needle track. It is possible to secure the high-density knitting of the knitting yarn by making the knitting yarn caught in the cylinder knitting needle smoothly and easily entangled in the knitting.

1 is an overall structural diagram of a circular knitting machine

2 is a structural diagram of the knitting portion of FIG.

3 is a partial detailed view of a cylinder of a conventional circular knitting machine

Figure 4 is a partial detailed view of the cylinder of the circular knitting machine of the present invention

5 is an operation state of the cylinder of the circular knitting machine of the present invention

* Explanation of symbols for the main parts of the drawings

11 cylinder 12 dial

13: yarn guide 21: cylinder needle track

22: dial needle track 23: cylinder needle

24: knitting yarn inlet 25: dial knitting needle

31: hook 32: latch

35: knitting

Claims (2)

In knitting circular fabrics using circular knitting machines, The upper end of each cylinder needle track formed with a density of 30 to 42 gauge (one hand needle per inch) is recessed on the outer circumferential surface of the cylinder of the circular knitting machine, so that the latch of the cylinder needle guided to the cylinder needle track can operate normally. And a knitting yarn inlet having a holding portion, and configured to secure a vertically reciprocating exposure section of the cylinder knitting needle for performing the knitting process by the depth of the knitting inlet. The method of claim 1, wherein the knitting inlet is configured to have a diameter of 0.5 to 0.7 mm and a depth of 1.0 to 1.5 mm.

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