JPH0881865A - Knitting yarn switching method in sock knitting machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Using the conventional yarn guide as it is, reliably feed the knitting yarn from the yarn guide to the knitting needle of the needle cylinder during high-speed operation without causing a mistake in knitting yarn switching. In a knitting yarn switching method in a sock knitting machine in which knitting needles of a needle cylinder are set to two levels, knitting needles are alternately arranged, and a knitting yarn from a knitting yarn supplying section is captured, The number of knitting needles should be two or more, and the knitting needles should be widened so that the diagonally flowing knitting yarns during high-speed operation are N1
Capture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knitting yarn switching method in a sock knitting machine, and particularly in a fine gauge sock knitting machine such as pantyhose.

[0002]

2. Description of the Related Art In a fine gauge sock knitting machine such as a pantyhose, in order to ensure that a knitting needle is grasped by a knitting needle when changing the knitting yarn, the rotation speed of the needle cylinder is reduced or the yarn guide is operated by the needle cylinder. It is arranged near the knitting yarn.

A plurality of yarn guides for the knitting needles of the needle cylinder are arranged so as to be switchable, and when the knitting yarns are switched, a pressing element arranged in front of the yarn guides operates in synchronization with the yarn guides so that the knitting yarns A knitting yarn switching method of a sock knitting machine for sure switching is disclosed, for example, in Japanese Patent Laid-Open No. Sho 54-54.
-96149 gazette.

In the above-mentioned knitting yarn switching method for the sock knitting machine, since the pressing element is arranged in front of the yarn guide, it is necessary to provide an operating mechanism for the pressing element in a limited space. However, it requires fine adjustment of the pressing element and its operating mechanism, and increases the operating speed (1
(000 rpm), when the knitting yarn is switched, the feeding of the knitting yarn from the yarn guide to the knitting needle of the needle cylinder becomes unstable, and a knitting yarn switching error may occur.

In order to solve the above problems, the inventor of the present invention uses a knitting needle of a needle cylinder as shown in FIG.
It is necessary to arrange a pressing element in front of the thread guide by alternately arranging the knitting needles at the clear level N2 and the knitting needles at the jack level N1 and capturing the knitting yarn from the knitting yarn supplying portion with the jack level knitting needles. We have developed a knitting yarn switching method for sock knitting machines.

In a fine gauge sock knitting machine such as pantyhose, the knitting needle pitch is from 0.65 mm to
The height of knitting needle is 1: because it is very narrow at 0.8 mm.
In 1, the pitch P of the knitting needle at the jack level is 1.3.
mm to 1.6 mm.

[0007]

In the knitting yarn switching method of the sock knitting machine of the above type, the knitting needles of the needle cylinder are alternately arranged on the clear level knitting needles and the jack level knitting needles. The interval is 1: 1
The knitting yarn between the yarn guide and the suction block is caught by the jack level knitting needles unless the operating speed is so high, so that the knitting yarn switching can be performed without any problem.

However, the operating speed of the sock knitting machine is 1300r.
At a high speed of pm, the knitting yarn between the yarn guide and the suction block flows obliquely with respect to the rotation direction of the knitting needle at the time of switching the knitting yarn, and cannot hook into the hook of the jack level knitting needle. However, the knitting yarn is not caught by the knitting needle, and the knitting yarn switching error occurs.

The present invention has been made in view of the above points, and by changing the working arrangement of the knitting needles of the needle cylinder, the conventional yarn guide can be used as it is, and the knitting needle of the needle cylinder can be changed from the yarn guide during high speed operation. It is an object of the present invention to provide a knitting yarn switching method for a sock knitting machine, which reliably supplies knitting yarn to the knitting yarn without causing a knitting yarn switching error.

[0010]

A knitting yarn switching method in a sock knitting machine according to the present invention is a knitting yarn from a knitting yarn supplying section in which knitting needles of a needle cylinder are set to two levels and knitting needles are alternately arranged. In the knitting yarn switching method for a sock knitting machine, the number of knitting needles on the lower side of the clear level is set to 2 or more, the intervals between the knitting needles are widened, and the diagonally flowing knitting yarns at the time of high speed operation are set to the higher level It is characterized by capturing with a knitting needle.

[0011]

The knitting yarn switching method in the sock knitting machine of the present invention is such that two or more knitting needles having a lower clear level are arranged between the knitting needles having a higher clear level so that the knitting needles having a higher clear level are knitted. When the yarn guides are switched during high-speed operation, the diagonally flowing knitting yarns are reliably captured by the knitting needles of the clear side on the higher side, and the occurrence of mistakes in knitting yarn switching is prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows one group G of a row of knitting needles arranged in a needle cylinder of a sock knitting machine. The knitting needles of 1 group G are one knitting needle N1 of jack level (JL) and two knitting needles N2 of clear level (CL).
And lower than the jack level (JL) and the clear level (C
L) is composed of four knitting needles N3 of a middle level (ML) higher than L, and two adjacent jack levels (J
Between the L) knitting needles N1, the clear level (CL) knitting needles N2, the intermediate level (ML) knitting needles N3 and the clear level (CL) knitting needles N2 are arranged at equal intervals. Therefore, two adjacent knitting needles of jack level (JL) N
1 is arranged with three knitting needles spaced. Jack level knitting needle N1 and clear level cam 11 knitting needle N2
The height difference H1 between the knitting needles N1 at the jack level and the knitting needles N3 at the intermediate level is about 1 mm, and
It is 0.81 mm.

FIG. 2 shows an example of an arrangement of knitting needles arranged in a needle cylinder of a sock knitting machine. As shown in FIG. 1, a knitting needle N1 and a knitting needle N2 are provided with a jack J having a select bat B1 at the same level, and a knitting needle N3 is provided with a select bat BS1 having a level about 0.8 mm lower than that of the select bat B1. Jack JS having is arranged. Therefore, in the knitting needles of group 1G, when the adjacent knitting needles N1 are positioned at the jack level (JL) by the jack J, the knitting needles N2 adjacent to this knitting needle N1 are cleared by the jack J (CL).
And the middle knitting needle N3 is located at a position lower than the jack level (JL) and higher than the clear level (CL), and there are three knitting needles between two adjacent knitting needles N1 of the jack level (JL). Even if the knitting yarn flows obliquely by the knitting machine having a high speed, the knitting needle N1 reliably catches the knitting yarn.

FIG. 3 is a diagram showing a knitting yarn switching device in a sock knitting machine. A suction block 2 is attached on a scissor stand 1 of the sock knitting machine.
The pipe part 3 is connected to a suction air source (not shown). A circular cutter 4 is arranged at the lower end of the scissor base 1 so as to rotate in synchronization with a needle cylinder (not shown). Further, on the upper side of the circular cutter 4, fixed cutters 5 are arranged in contact with the upper surface of the circular cutter 4 and below the suction block 2 at predetermined intervals in the rotation direction R of the needle cylinder.

On the other hand, on the outside of the scissors base 1 of the sock knitting machine, a plurality of knitting yarn supplying portions (in FIG. 3, 1) are arranged at predetermined intervals in the circumferential direction.
F is shown). Knitting yarn feeding section F
Has a yarn guide plate 6 and a plurality of yarn guides 7a, 7b ... 7n arranged in a row in the circumferential direction on the yarn guide plate 6, and each yarn guide 7a, 7b ... 7n has a knitting yarn 8 respectively.
a, 8b ... 8n are inserted. Each thread guide 7a, 7b
7n are moved by a known switching device (not shown) to switch the knitting yarns 8a, 8b ... 8n. In FIG. 3, the state in which the knitting needle N is switched from the knitting yarn 8b of the yarn guide 7b (dotted line) to the knitting yarn 8a of the yarn guide 7a (solid line) is shown.

FIG. 4 is a partially developed view in which the cam mechanism for controlling the knitting needle N is divided in the longitudinal direction. The cam mechanism includes a tack level (TC) cam 10, a clear level (CL) cam 11, a stitch cam 12, and a stitch cam 12 which are sequentially arranged in the circumferential direction of the needle cylinder.
Lower side cam 13, fixed cam 14 and fixed cam 15 arranged below these cams, fixed cam 14
Select finger 16 disposed between the fixed cam 15 and the fixed cam 15.
And select fingers 17. Select finger 16 is select butt B of Jack J.
1 and the select finger 17 engages the select butt B2 of the jack J.

That is, the select fingers 16 and the select fingers 17 are selectively operated by a needle selection control device (not shown), the select fingers 16 are engaged with the select butt B1 of the jack J, and the knitting needle N is moved to the jack level (JL). ) Position, the select finger 17 engages the select butt B2 of the jack J, and puts the knitting needle N in the inoperative position.

Therefore, in the knitting yarn switching method in the sock knitting machine of the present invention, as shown in FIGS. 1 and 2,
In the arrangement for the five jacks J, by lowering the level of the select bat BS1 of the center jack JS to be lower than that of the select butt B1 of jack J, the pitch L of the knitting needle N1 of the jack level on jack J becomes 4P. ,
The knitting yarn that flows obliquely during high-speed operation is reliably captured by the jack level knitting needle.

FIG. 5 shows another embodiment of the present invention. In this embodiment, the knitting needle N arranged in the needle cylinder has a knitting needle N11 having an upper bat UB and a lower bat LB.
And a knitting needle N12 having only the lower bat LB. Below each knitting needle N, a pattern jack PJ having a plurality of bats PB for patterning is arranged.

FIG. 6 is a partially developed view in which the cam mechanism for controlling the knitting of the 2-bat knitting needle N is divided in the longitudinal direction. The cam mechanism includes a tack level (TC) cam 20, a clear level (CL) cam 21, a stitch cam 22, and a side cam 23 below the stitch cam 22, which are sequentially arranged in the circumferential direction of the needle cylinder. The fixed cam 24 and the fixed cam 25 arranged on the lower side of these cams, the select finger 26 arranged between the fixed cam 14 and the fixed cam 15, and the upper side of the tack level (TC) cam 20 are arranged. Rising cam 27 and lower fixed cam 15
And the jack cam 28 provided in the.

Thus, the two arranged as shown in FIG.
When the bat knitting needle N is operated by the cam mechanism shown in FIG. 6,
As shown in FIG. 7, the knitting needle N11 rises to a high level H by engaging the upper bat UB with the rising cam 27, and the knitting needle N12 not having the upper bat UB on both inner sides of the knitting needle N11 has a tuck level ( The cam 20 for TC) rises to a low level L by the cam 21 for clear level (CL),
The knitting needle N12 having no upper butt UB in the center is raised to the intermediate position M where the pattern jack PJ is selected by the select finger 26 of the needle selecting device (not shown) and raised by the jack cam 28.

That is, by disposing three knitting needles N12 having only the lower bat LB between the knitting needles N11 having the upper bat UB and the lower bat LB, three knitting needles N11 having two jack levels adjacent to each other are provided. The knitting needle interval L of is formed.

[0024]

As described above, according to the present invention, by changing the working arrangement of the knitting needles of the needle cylinder, the conventional yarn guide is used as it is, and the yarn guide is changed from the yarn guide during high speed operation to the knitting needle of the needle cylinder. It is possible to surely perform the knitting yarn supply of the knitting yarn without causing the knitting yarn switching mistake.

[Brief description of drawings]

FIG. 1 is a diagram showing a relationship between a knitting needle and a jack in a knitting yarn switching method in a sock knitting machine according to the present invention.

FIG. 2 is a view showing an operation arrangement of knitting needles of a needle cylinder.

FIG. 3 is a perspective view of a knitting yarn switching portion in the sock knitting machine.

FIG. 4 is a partial development view of a cam mechanism for controlling knitting needles.

FIG. 5 is a diagram showing another embodiment of the relationship between the 2-bat knitting needle and the jack in the knitting yarn switching method in the sock knitting machine of the present invention.

FIG. 6 is a partial development view of a cam mechanism for controlling knitting of a 2-bat knitting needle.

FIG. 7 is a view showing the action of the 2-bat knitting needle shown in FIG.

FIG. 8 is a diagram showing an arrangement in which the knitting needles of the needle cylinder are alternately arranged on the knitting needles of the clear level N2 and the jack level N1.

[Explanation of symbols]

 1 Scissors bed of sock knitting machine 2 Suction block 4 Circular cutter 5 Fixed cutter 6 Thread guide plate 7 Thread guide 8 Knitting thread F Knitting thread feeding section N1 Jack level knitting needle N2 Clear level knitting needle N3 Intermediate level knitting needle

Claims (1)

[Claims] 1. A knitting yarn switching method in a sock knitting machine in which a knitting needle of a needle cylinder has two levels of clearness, knitting needles are alternately arranged, and a knitting yarn from a knitting yarn supplying section is captured. A method for switching knitting yarns in a sock knitting machine, characterized in that the number of knitting needles of level is two or more, the knitting needles are widened, and diagonally flowing knitting yarns are caught by high-side clear-level knitting needles during high-speed operation. .