KR100922320B1 - Singker apparatus for double cylinder type circular knitting machine - Google Patents

Abstract

The present invention relates to a double cylinder circular knitting machine, and more particularly to a sinker device provided at the mutually opposite ends of the upper and lower cylinders of the double cylinder circular knitting machine.

A sinker device of a double cylinder type circular knitting machine according to the present invention includes an upper sinker bed and a lower sinker bed separately disposed on mutually opposite ends of upper and lower cylinders of a knitting device, and the upper sinker bed is the upper cylinder. It is disposed on the lower side of the lower sinker bed is disposed on the upper side of the lower cylinder, the upper sinker bed has a plurality of grooves on its outer peripheral surface, the upper sinker is fixed to each of the grooves separately, The sinker bed has a plurality of grooves on its outer circumferential surface, and each groove of the lower sinker bed is installed so that the lower sinker slides in a curved direction.

Double, cylinder, circular knitting machine, sinker, bed, sliding, curved

Description

SINKER APPARATUS FOR DOUBLE CYLINDER TYPE CIRCULAR KNITTING MACHINE}

The present invention relates to a double cylinder circular knitting machine, and more particularly to a sinker device provided at the mutually opposite ends of the upper and lower cylinders of the double cylinder circular knitting machine.

As is well known, a knitting machine is a kind of textile machine which produces a loop (nose) by knitting a thread supplied to a knitting needle, and twists the loop in the horizontal and vertical directions to produce the intended knitted fabric.

This knitting machine is composed of a feeding mechanism for supplying a thread to the knitting needle and a knitting device that performs a knitting motion to form a loop with the supplied thread, and a warp knitting machine and a weft yarn for knitting a warp in the longitudinal direction. It is roughly divided into the knitting machine which knits in a horizontal direction.

Among them, the circular knitting machine belongs to the category of the knitting machine, and the needles are arranged in a circular shape on the cylinder to continuously produce an annular knitted fabric, and the annular knitted fabric is usually finished into clothing through a cutting process.

Among these circular knitting machines, a double cylindrical circular knitting machine consisting of two upper and lower cylinders is widely used. The double cylindrical circular knitting machine includes an upper cylinder and a lower cylinder that rotate individually, and the upper cylinder and the lower cylinder are formed on each outer circumferential surface thereof. A plurality of grooves are formed, and each of the grooves are interposed with a plurality of jacks, each jack is moved up and down by a cam box disposed on the outside of each cylinder, the two teeth of the jack by the vertical movement of these jacks and the upper cylinder and It is made to knit the yarn supplied from the feeding mechanism while moving up and down along each groove of the lower cylinder.

On the other hand, such a conventional double-cylindrical circular knitting machine has an upper cylinder and a lower sinker for assisting the loop formation of a thread caught on each hook side of both needles moving up and down along the grooves of the upper cylinder and the lower cylinder during its knitting operation. It is installed on the lower cylinder side separately. That is, the upper sinker is disposed at the lower end side of the upper cylinder, and the lower sinker is disposed at the upper end side of the upper cylinder.

However, the conventional double cylinder circular knitting machine has a disadvantage of increasing the overall size of the circular knitting machine due to the complicated structure of the sinker, and also causes interference with other components such as a feeding mechanism, a cutting mechanism, etc. on the movement path of each sinker. There was a disadvantage that the knitting efficiency is greatly reduced.

The present invention has been made in view of the above, and an object thereof is to provide a sinker device of a double cylinder type circular knitting machine which can make the overall size of the circular knitting machine more compact by precisely moving the sinker.

In addition, an object of the present invention is to provide a sinker device of a double cylinder type circular knitting machine which can improve the knitting efficiency by arranging the other components so as not to interfere by shortening the movement path of each sinker.

The sinker device of the present invention for achieving the above object,

In the circular knitting machine comprising a circular knitting body having a circular knitting body, a feeding mechanism disposed outside the main body of the circular knitting machine to supply a plurality of yarns, and upper and lower cylinders for knitting the yarn supplied by the feeding yarn,

An upper sinker bed and a lower sinker bed disposed separately on mutually opposite end sides of the upper and lower cylinders of the knitting device,

The upper sinker bed is disposed on the lower side of the upper cylinder, the lower sinker bed is disposed on the upper side of the lower cylinder,

The upper sinker bed has a plurality of grooves on its outer circumferential surface, the upper sinker is fixed to each of the grooves individually, and the lower sinker bed has a plurality of grooves on its outer circumferential surface, and the lower sinker on each groove of the lower sinker bed. Is installed so as to slide in a curved direction.

The groove of the lower sinker bed has a curved cross section, and correspondingly, the lower sinker has a curved structure whose lower surface corresponds to the groove of the lower sinker bed.

First and second sinker cams are disposed in the inner side of the lower sinker bed, and predetermined cam structures are formed at mutually opposite portions of the first and second sinker cams, and are spaced apart by the spaced apart cams. A predetermined guide path is formed, and an inner end of the lower sinker has a butt guided along the guide path.

The lower sinker is comprised of a first lower sinker having a throat at its outer end and a second lower sinker having a closed surface at its outer end, the first and second lower sinkers alternately in grooves of the lower sinker bed. Is placed.

The present invention as described above has the effect that the overall size of the circular knitting machine can be made more compact by greatly simplifying the moving structure of the sinker.

In addition, the present invention has the advantage that it is possible to improve the knitting efficiency by arranging so that other components do not interfere on the movement path of each sinker.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5 show a sinker device of a double cylinder type circular knitting machine according to an embodiment of the present invention.

The double cylinder type circular knitting machine according to the present invention shown in FIG. 1 is arranged on the outer side of the circular knitting body 100 and the circular knitting machine main body 100 by a feeding mechanism 10 for supplying a plurality of yarns, by the feeding mechanism 10. It includes a knitting device 20 for knitting the supplied yarn, a driving device (not shown) for driving the knitting device 20 and the like. In addition, a suction pipe 101 is installed on the upper cover 105 of the circular knitting body 100, and a suction fan (not shown) is installed on the suction pipe 101 to suck the knitted fabric by the knitting device 20. Discharge to the outside.

The knitting device 20 is formed on the outer circumferential surface of the upper and lower cylinders 21 and 22, the upper and lower cylinders 21 and 22, which are individually rotatable by a driving mechanism, as shown in Figs. A plurality of jacks 27, which perform a predetermined knitting operation by using a plurality of jacks 25, 26 moving up and down along the plurality of grooves 21a, 22a, a yarn supplied by the feeding mechanism 10, and a predetermined A plurality of sections divided into numbers are fixed to the inner and outer surfaces of the upper and lower cam boxes 23 and 24 and the cam boxes 23 and 24 disposed circumferentially on the respective outer peripheral surfaces of the upper and lower cylinders 21 and 22. And a plurality of cams 28 and 29 which form predetermined guide paths 28a and 29a to guide the vertical movement of the jacks 25 and 26.

The upper cylinder 21 has a gear 21c coupled to its upper end, and the driving force of the drive mechanism is transmitted to the gear 21c side, so that the upper cylinder 21 rotates.

The lower cylinder 22 has a gear 22c coupled to its lower end, and the driving force of the drive mechanism is transmitted to the gear 22c side, so that the lower cylinder 22 rotates.

The upper and lower cylinders 21 and 22 are formed by dividing a plurality of grooves 21a and 22a extending in the longitudinal direction on each outer circumferential surface in the circumferential direction.

The plurality of jacks 25 and 26 are interposed so as to be movable up and down individually on the grooves 21a and 22a of the upper and lower cylinders 21 and 22, and at least one butt (a side surface of each jack 25 and 26). 25a and 26a are provided, and hooks 25b and 26b are formed on the free ends of the jacks 25 and 26 to catch the two teeth 27. The plurality of jacks 25, 26 are operated by a plurality of selectors 74 which move up and down along the groove 22a of the lower cylinder 22, and the plurality of selectors 74 are individually driven by the actuator 73. Controlled.

The plurality of bilateral needles 27 are selectively between the upper jack 25 and the hooks 25b and 26b of the lower jack 26 which move along the grooves 21a and 22a of the upper and lower cylinders 21 and 22. While the hook is moving, the yarn supplied from the feeding mechanism 10 is looped to perform a predetermined knitting operation of wrought iron in the horizontal or vertical direction.

The upper and lower cam boxes 23 and 24 are annular by circumferentially arranging a plurality of sections divided into a predetermined number on each outer side of the upper and lower cylinders 21 and 22.

A plurality of cams 28 and 29 are installed on the inner side surfaces of the respective sections of the upper and lower cam boxes 23 and 24 so as to guide predetermined butts 25a and 26a of the jacks 25 and 26 described above. The furnaces 28a and 29a are formed.

In addition, the sinker device 50 of the present invention includes an upper sinker bed 51 and a lower sinker bed 52 that are individually disposed on opposite end sides of the upper and lower cylinders 21 and 22.

The upper sinker bed 51 is disposed at the lower end side of the upper cylinder 21 as shown in Figs. 3 and 4, and the upper sinker bed 51 is connected to the upper support 51d by screwing 51c or the like. Coupled and supported, the upper support (51d) is installed through the inner hollow of the upper cylinder (21). The upper sinker bed 51 is formed by dividing a plurality of grooves 51a in the circumferential direction on the outer circumferential surface thereof, and a plurality of upper sinkers 53 are individually disposed in each groove 51a, and each upper sinker 53 is disposed. The inner end 53a of the upper sinker bed 51 is fixed to the inner side by a fixing ring 55, and the outer end 53b of the upper sinker 53 is the groove 51a of the upper sinker bed 51. It protrudes from. In addition, the upper sinkers 53 are alternately disposed with the grooves 21a of the upper cylinder 21. Thus, the plurality of upper sinkers 53 are disposed between the plurality of double-headed needles 27 to bend the thread to form a loop.

The lower sinker bed 52 is disposed on the upper side of the lower cylinder 22 as shown in FIGS. 3 and 5, and the lower sinker bed 52 is the first and second fixed cups on the lower support 52d side. It is coupled and supported by the 57a, 57b, and the lower support body 52d is installed through the inner hollow part of the lower cylinder 22. As shown in FIG.

The lower sinker bed 52 is formed by dividing a plurality of grooves 52a at the upper end thereof in the circumferential direction, and each groove 52a has a curved cross section as shown in FIG. 3. A plurality of first and second lower sinkers 54 and 58 are alternately arranged in each groove 52a, and a lower surface of each lower sinker 54 has a curve corresponding to the groove 52a of the lower sinker bed 52. It consists of a mold cross section. These first and second lower sinkers 54, 58 are alternately arranged with the grooves 22a of the lower cylinder 22.

First and second sinker cams 56a and 56b are disposed inside the lower sinker bed 52, and the first and second sinker cams 56a and 56b face each other, that is, the first sinker cam 56a. A predetermined cam structure 56c, 56d is formed on each of the lower surface of the bottom surface and the upper surface of the second sinker cam 56b, and the predetermined guide path 56e is spaced apart by the spaced intervals of the cam structures 56c, 56d. Is formed. The first and second sinker cams 56a and 56b are installed inside the lower sinker bed 52 by the first and second fixing cups 57a and 57b, respectively. The bearing 57c is interposed between 57b).

The first lower sinker 54 has a butt 54a at the inner end adjacent to the guideways 56e of the first and second sinker cams 56a and 56b, and a throat 54b at the outer end thereof.

With this arrangement, the first lower sinker 54 has the butt 54a guided along the guide path 56e of the first and second sinker cams 56a and 56b, and the guide operation of the butt 54a is performed. As a result, the first lower sinkers 54 and 58 can be reciprocated in a curved manner by sliding their lower surfaces in a curved direction along the grooves 52a of the lower sinker bed 52, so that the first lower sinker 54 is thrown out. The loop formation can be made more precise and firm by moving the reciprocating curve in the direction orthogonal to the double-headed needles 27 in a state where the thread fed on the thread 54b side is fastened.

The second lower sinker 58 has a lower surface of which is curved to correspond to the groove 52a of the lower sinker bed 52 and is adjacent to the guideways 56e of the first and second sinker cams 56a and 56b. The inner end has a butt 58a, and the outer end has a closing surface 58b for closing the side surface of the throat 54b of the first lower sinker 54.

The second lower sinker 58 has its butt 58a guided along the guide path 56e of the first and second sinker cams 56a and 56b described above, and the closed surface of the second lower sinker 58 ( When 58b protrudes from the groove 52a of the lower sinker bed 52, the side projection jaw (not shown) of the lower side jack 26 moving along the groove 22a of the lower cylinder 22 is the second. By pressing the lower portion of the lower sinker 58, the closing surface 58b of the second lower sinker 58 closes the throat 54b of the first lower sinker 54 disposed in both lateral directions thereof. 1 The thread fed to the throat 54b of the lower sinker 54 is not caught.

For example, in order to knit the heel or the front heel of the sock, the upper and lower cylinders 21 and 22 should be alternately rotated in the rotational direction. When the rotational direction is alternately converted, the yarn to be fed is the first lower sinker. When caught by the throat 54b of 54, the thread may be broken by the change of the rotational direction. Therefore, when the rotation direction of the cylinders 21 and 22 is changed according to the knitting pattern, the second lower sinker 58 is operated so that the closing surface 58b is the throat 54b of the first lower sinker 54. By closing the yarn so that the yarn to be fed is not caught in the throat 54b.

As such, the present invention assists the knitting operation while moving the upper sinker 53 in the up and down direction, and the lower sinkers 54 and 58 implement a sliding movement structure in a curved direction to shorten the movement path and to provide a different component. By minimizing interference, the circular knitting machine of a more compact size can be realized, and the precise mobility of the lower sinkers 54 and 58 can be ensured to further enhance the sinker functions such as loop formation, regulation of the appearance of the knitted fabric, and adjustment of the size of the loop. have.

In addition, the present invention is configured by independently driving the lower sinker 54 to independently drive the first lower sinker 54 and the second lower sinker 58 to prevent the thread from being caught on the first lower sinker 54 side. There is a characteristic that can improve the efficiency.

In addition, the first and second lower sinkers 54 and 58 of the present invention have a curved structure sliding in the groove 52a of the lower sinker bed 52, so that the movement path thereof can be shortened to other components. By minimizing interference with, there is an advantage that can be configured a circular knitting machine of a more compact size.

1 is a schematic diagram showing a double cylinder circular knitting machine to which the sinker device of the present invention is applied.

2 is a cross-sectional view showing a knitting device to which the sinker device of the present invention is applied.

Figure 3 is an enlarged cross-sectional view showing a sinker device according to an embodiment of the present invention.

Figure 4 is an exploded perspective view showing the upper sinker bed structure of the sinker device according to the present invention.

5 is an exploded perspective view illustrating a lower sinker bed structure of the sinker device according to the present invention.

Brief description of symbols for the main parts of the drawings

10: feeding device 20: knitting device

50: sinker device 51: upper sinker bed

52: lower sinker bed 53: upper sinker

54, 58: first and second lower sinkers 100: circular knitting body

Claims (4)

delete delete delete In the circular knitting machine comprising a circular knitting body having a circular knitting body, a feeding mechanism disposed outside the main body of the circular knitting machine to supply a plurality of yarns, and upper and lower cylinders for knitting the yarn supplied by the feeding yarn, An upper sinker bed and a lower sinker bed disposed separately on mutually opposite end sides of the upper and lower cylinders of the knitting device, The upper sinker bed is disposed on the lower side of the upper cylinder, the lower sinker bed is disposed on the upper side of the lower cylinder, The upper sinker bed has a plurality of grooves on its outer circumferential surface, and the upper sinker is individually fixed to each groove, The lower sinker bed has a plurality of grooves on its outer circumferential surface, and each groove of the lower sinker bed is installed so that the lower sinker slides in a curved direction, and the groove of the lower sinker bed has a curved cross section. The lower sinker has a curved structure whose lower surface corresponds to the groove of the lower sinker bed, The lower sinker is composed of a first lower sinker having a throat at the outer end and a second lower sinker having a closed surface at the outer end, When the rotational direction of the upper and lower cylinders are changed, the second lower sinker is operated so that the closing surface of the second lower sinker closes the throat of the first lower sinker, The sinker device of the double cylinder circular knitting machine, characterized in that the first and second lower sinker is alternately arranged in the groove of the lower sinker bed.

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