WO2020045784A1

WO2020045784A1 - Needle selection device of circular knitting machine

Info

Publication number: WO2020045784A1
Application number: PCT/KR2019/004354
Authority: WO
Inventors: 김영선
Original assignee: 동일편직기계 주식회사
Priority date: 2018-08-31
Filing date: 2019-04-11
Publication date: 2020-03-05
Also published as: CN216514444U; KR101964231B1

Abstract

The present invention relates to a needle selection device of a circular knitting machine, the needle selection device comprising: two actuators reduced from three; a reset cam including two protrusion parts formed thereon and thus having a structure changed to express a miss stitch, a tuck stitch, a knit stitch, and a link stitch, so as to reduce prime costs; and an assisting jack for performing a needle selection operation when descending, so as to enable needle alignment and selection to be performed at one portion and thus improve utilization of a space, so that more feeders are achieved and productivity can thus be improved.

Description

Needle needle device of circular knitting machine

The present invention relates to a needle needle device of a circular knitting machine, and more specifically, to reduce the number of actuators, to reduce the cost by changing the structure of the reset cam, to improve productivity by realizing more feeders with high utilization of space It relates to a needle needle device of the circular knitting machine.

In general, in a circular knitting machine, a needle needle accommodated in a plurality of needle grooves provided in parallel with a needle cylinder and capable of sliding displacement is selected as a needle needle device mounted on a carriage that reciprocates along the longitudinal direction of the needle cylinder, and is used as a knitting cam system. It is driving and knitting operation.

The knitting operations of the knitting needles include MISS, TUCK, KNIT, and double head (LINK).

The miss is the position of the knitting needle which does not raise the knitting needle and does not form the loop. The jaw is fed up with the knitting yarn without being formed in a loop but descending without forming a loop. It refers to the case of forming a loop like the previous thread. Knit refers to the case where the knitting needle is completely lowered to make a new loop, and both heads means that the knitting needle is fully raised and the knitting needle moves to the upper cylinder to make a new loop.

1 is a view for explaining the operation of the needle needle device of the conventional circular knitting machine.

An actuator 1 for selecting a pattern jack, an auxiliary jack for transmitting the selected action of the pattern jack to a needle needle mounted on a needle of a cylinder, and an upper portion of the actuator 1 for resetting the pattern jack. The cam portion 3 is formed on the reset cam 2 and the cam passage 3a which is located above the reset cam 2, and has a cam passage 3a that enables the knitting operation of the miss, the jaw, the knit, and the both heads to form a ring. And a butt (4a) coupled to the cam passage (3a), and comprises a jack (4) to move up and down by moving the needle needle by the pre needle action of the actuator (1).

In addition, the actuator 1 is composed of a first actuator 1a, a second actuator 1b, and a third actuator 1c, and the reset cam 2 is provided with a protrusion 2a.

In the prior art needle of the circular knitting machine configured as described above, the pattern jack (needle) is reset at the protrusion 2a of the reset cam 2 (A), and the jaw (b) whether the first actuator 1a is missed (a). It is decided whether to knit (c) and double-headed (d), and the needle determined as miss (a) becomes miss (a) to the end. (A-1)

Also, among the needles that are not selected as misses (a) in the first actuator, the second actuator determines whether the jaw (b) or the knit (c) or the double head (d) is to be made. 2)

In addition, among the needles that are not selected as the jaws b in the second actuator, the third actuator determines whether to knit (c) or double head (d). (A-3)

That is, in the conventional needle knitting apparatus of the circular knitting machine, three actuators (1) are required to represent the miss (a), the jaw (b), the knit (c), and the head (d).

On the other hand, reference numeral 5 denotes a conventional cam structure of the needle alignment portion for aligning the needle in the cylinder (kiln) with the lower cylinder (kiln), and reference numeral 6 denotes a needle above the needle in which the aligned needle is not selected by the third actuator. It shows the cam structure of the conventional method to send to the kiln and to align the slider in the downward direction.

The present invention is to solve the problems of the prior art (the problem of sorting the needle of the cylinder (kiln) and sorting again), the object of the present invention, the utilization of space by performing the needle alignment and sorting in one part By increasing the number of feeders to increase the productivity problem, which is a problem of the conventional double head circular knitting machine, increases by about 35%, and changes the number of actuators by changing the structure of the reset cam to provide a pin needle device of the circular knitting machine that can reduce the cost .

In the technical concept for achieving the present invention, the needle needle device of the circular knitting machine, an actuator for selecting a pattern jack, an auxiliary jack for transmitting the selected action of the pattern jack to the needle needle mounted on the needle of the cylinder, and is linked to the actuator A reset cam is installed on the actuator so that the pattern jack is reset, and a cam passage is formed on the reset cam, and a cam passage is formed to allow a knitting operation of miss, tuck, knit, and both heads to form a ring. The cam path is composed of upper and lower parts, and the upper part is led by the upper cam tip, the upper rising track, the upper inflection point and the upper falling track, and the lower part is led by the lower cam tip, the lower rising track, the lower inflection point and the lower falling track. The first cam portion to achieve a, and coupled to the upper portion of the auxiliary jack, the ascending and descending by the needle action of the actuator moves the knitting needle The key includes a slider and a second cam portion having a rising track and a falling track to which the butt of the slider is coupled to and moved above the first cam portion, wherein the actuator is divided into a first actuator and a second actuator, A first protrusion and a second protrusion are formed on the reset cam, and the butt of the auxiliary jack protrudes out of the cylinder at the second protrusion of the immediately preceding feeder reset cam, and the first actuator is reset to select the auxiliary jack again. The auxiliary jack entering the cam portion is determined by the first actuator to be expressed as miss and tuck at the upper cam tip or by knit and both heads, and by the first actuator to be expressed as miss and tuck at the upper cam tip. The selected auxiliary jack moves to the lower cam front end, and the slider and the auxiliary jack are connected to each other by the rising track of the second cam part. While the auxiliary jack moved to the lower cam end by the first protrusion of the reset cam protrudes out of the cylinder again, if it is determined to be missed by the second actuator at the lower inflection point, the auxiliary jack moves along the lower downward track and is determined to be one side of the jaw. And the unselected auxiliary jack to be expressed as knit and both heads at the upper cam tip by the first actuator is determined by the second track of the second cam when it is determined to be knit by the second actuator at the upper inflection point along the upper ascending track. As the slider and the auxiliary jack are connected, they move along the upper downward track and move to one side when determined by both heads, and the needle position is performed at the upper inflection point to align the needle on the upper side of the cylinder. The sorting operation can be performed in one place.

In the technical concept for achieving the present invention, the needle tip device of the circular knitting machine according to the present invention reduces the actuator from three to two, and by forming two protrusions of the reset cam to express the miss, tuck, knit and both heads, cost reduction In addition, when the auxiliary jack is lowered, the needle tip operation is performed, thereby increasing productivity (approximately 35%) by implementing more feeders due to the high utilization of space.

Figure 2 is a view for explaining the operation of the needle needle device of the circular knitting machine according to the present invention.

Figure 3 is a view showing the relationship between the actuator and the pattern jack in the needle needle of the circular knitting machine according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

2 is a view for explaining the operation of the needle needle device of the circular knitting machine according to the present invention, Figure 3 is a view showing the relationship between the actuator and the pattern jack in the needle needle device of the circular knitting machine according to the present invention.

2 and 3, the needle needle device of the circular knitting machine according to the present invention includes an actuator 10, a reset cam 20, a first cam part 30, a jack 40, and a second cam part 50. do.

The actuator 10 selects the pattern jack 12 and transmits the selected action of the pattern jack 12 to the knitting needle mounted on the needle of the cylinder.

In addition, the actuator 10 is divided into a first actuator 10a and a second actuator 10b.

The reset cam 20 is installed on the actuator 10 so that the pattern jack 12 is reset.

In addition, a first protrusion 21 and a second protrusion 22 are formed in the reset cam 20, and the pattern jack 12 is arranged (reset).

That is, the portion of the pattern jack 12 of the first actuator 10a is reset in the first protrusion 21 and the portion of the pattern jack 12 of the second actuator 10b is reset in the second protrusion 22. to be.

The first cam unit 30 is located above the reset cam 20, and forms a miss (MISS) (a), tuck (b), knit (KNIT) (c) to form a ring And a cam passage for enabling the knitting operation of both heads (LINK) (d).

The knit (c) is to knit down, and the two heads (d) are to knit up.

In addition, the cam path is composed of an upper portion and a lower portion, an upper portion of the upper cam leading edge portion 31a, an upper rising track 31b, an upper inflection point 31c, and an upper lowering track 31d, and a lower portion of the cam passage. The cam tip 31e, the lower rising track 31f, the lower inflection point 31g and the lower falling track 31h form a diagram.

The slider 41 is formed with a butt (bt) coupled to the cam passage 31, and is moved up and down by moving the needle needle by the pre needle action of the actuator 10.

In addition, the slider 41 is the auxiliary jack 42 is coupled to the lower portion, the auxiliary jack 42 is a jack for supporting the slider 41 to operate the needle, butt (bt) is coupled to the cam passage is Is formed.

The second cam portion 50 is provided with an upward track 51 and a downward track 52 that are coupled to the butt (bt) of the slider on the upper side of the first cam unit 30.

In the needle tip device of the circular knitting machine according to the present invention configured as described above, the butt bt of the auxiliary jack 42 protrudes out of the cylinder at the second protrusion of the immediately preceding feeder reset cam, so that the first actuator 10a is connected to the auxiliary jack 42. The auxiliary jack 42, which is reset to select again and enters the first cam part 30, may be represented as a miss (a) and a jaw (b) at the upper cam end part 31a by the first actuator 10a. Whether it is expressed as knit (c) and double head (d). (A-1)

The auxiliary jack 42 selected by the first actuator 10a and the non-selected auxiliary jack 42 are reset by the first protrusion 21 of the reset cam 20.

In addition, the selected auxiliary jack 42 to be represented as the miss (a) and the jaw (b) in the upper cam end portion (31a) by the first actuator (10a) is moved to the lower cam end portion (31e), the second cam portion The slider 41 and the auxiliary jack 42 are connected to each other by the ascending track 51 of the lower part 50, and the lower part is lowered by the first protrusion 21 of the reset cam 20 while passing through the lower rising track 31f. When the auxiliary jack 42 moved to the cam front end 31e protrudes out of the cylinder again and is determined to be a miss by the second actuator 10b at the lower inflection point 31g, the auxiliary jack 42 moves along the lower falling track 31h. In addition, if the jaw (b) is determined to move to one side. (B-1)

In addition, the unselected auxiliary jack 42 to be represented as the knit (c) and the double-headed (d) in the upper cam tip portion 31a by the first actuator (10a) is the upper inflection point (b) 31c) when the second actuator (10b) is determined as the knit (c) by the lower track 52 of the second cam portion 50, the slider 41 and the auxiliary jack 42 is connected to the upper down track It moves along (31d) and moves to one side if it is determined as double head (d). (B-2)

For reference, according to the present invention, since the needle position is performed at the upper inflection point 31c (starting position of the auxiliary jack), the operation of aligning the needle on the upper side of the cylinder and the sorting operation of the needle can be performed in one place. The space utilization can be dramatically increased, and the productivity of the duplex machine can be increased by about 35%.

While the invention has been described with reference to one embodiment shown in the accompanying drawings, it will be understood that various modifications and other embodiments are possible to those skilled in the art.

Claims

An actuator for selecting a pattern jack,

An auxiliary jack for transmitting the selected action of the pattern jack to the needle needle mounted on the needle of the cylinder;

A reset cam installed on the actuator so that the pattern jack interlocked with the actuator is reset;

Located at the top of the reset cam, to form a cam path to enable the knitting operation of the miss, tuck, knit and both heads to form a ring,

The cam path is composed of an upper portion and a lower portion, an upper portion of the upper cam leading portion, an upper rising track, an upper inflection point and an upper lowering track forms a lead, and a lower portion of the lower cam tip, a lower rising track, a lower inflection point, and a lowering track. The first cam unit to achieve a fresh line,

A slider coupled to an upper portion of the auxiliary jack and moving up and down by moving the needle, by a needle action of the actuator;

It includes a second cam portion having a rising track and a falling track which is coupled to the butt of the slider on the upper side of the first cam portion,

The actuator is divided into a first actuator and a second actuator, and a first protrusion and a second protrusion are formed on the reset cam.

At the second projection of the immediately preceding feeder reset cam, the butt of the auxiliary jack protrudes out of the cylinder so that the first actuator is reset to select the auxiliary jack again, and the auxiliary jack which enters the first cam is connected to the upper cam end by the first actuator. Whether it is expressed in miss and chin or in knit and double-headed,

The selected auxiliary jack to be expressed as a miss and the jaw at the upper cam tip by the first actuator moves to the lower cam tip, and the slider and the auxiliary jack are connected to each other by an upward track of the second cam, The auxiliary jack moved to the lower cam end by the first protrusion of the reset cam protrudes out of the cylinder again, and if it is determined to be missed by the second actuator at the lower inflection point, the auxiliary jack moves along the lower downward track and toward the one side if it is determined to be a jaw. Is moved,

The unselected auxiliary jack to be expressed as knit and both heads at the upper cam end by the first actuator is determined to be knitted by the second actuator at the upper inflection point along the upper ascending track to the slider and the auxiliary jack by the falling track of the second cam part. As it is connected, it moves along the upper and lower tracks, and moves to one side when determined with both heads.

The needle point device of the circular knitting machine, characterized in that the needle position is performed at the upper inflection point to align the needle on the upper side of the cylinder and the screening operation of the needle can be performed in one place.