KR820000124B1 - Apparatus for production of multi-strand yarns - Google Patents

Abstract

Apparatus for breaking out yarns having fewer strands than desired where two or more strands are combined strands laterally of their general direction of travel, the guide being mounted for lateral movement under pressure from a residual strand in the absence of the other to allow the residual strand to adopt a respective modified line of travel, and strand breaker means arranged to act on a strand adopting a modified line of travel to effect breakout of that strand.

Description

Hapyeonsa yarn manufacturing equipment

1 is a partial cross-sectional view of a yarn manufacturing unit in which an apparatus according to the present invention is installed.

2 is a top elevational view of FIG. 1 with the driving aid in full operation.

3 is a view similar to the second diagram, showing a state immediately after one thread is cut.

4 is a perspective view of an apparatus for forming a part of the yarn manufacturing portion shown in FIG.

5 is a sectional view along line 5-5 of FIG.

6 is a side view along line 6-6 of FIG.

7 is a sectional view along line 7-7 of FIG.

FIG. 8 is a view similar to FIG. 7 corresponding to the state shown in FIG.

9, 10 and 11 are views showing the various structures of the four control step means.

12 is an enlarged view of a yarn made in accordance with the present invention.

The present invention relates to a manufacturing apparatus of a twisted yarn in which at least two threads are twisted with each thread twisted.

In particular, the purpose of using a twisted yarn and two twisted yarns rather than a single yarn is to improve the performance of the yarn and improve the properties of the fabric in subsequent processes such as weaving.

The present invention aims to produce such yarns in a single spinning process.

It will be appreciated that the presence and direction of the twist relates to the viewing position of the observer. In other words, the twist direction in the present specification is shown with reference to the axis of the plywood or the individual thread as viewed by the fixed observer at a position away from the thread.

The yarns of the type described here, joined together while at least two threads are given a single twist to each thread, are usually used to weave general fabrics, ie fabrics other than special purpose fabrics, and at any point in the length of the thread It is preferable that the thickness is uniform so that the single yarns are joined together substantially uniformly.

It is an object of the present invention to provide an apparatus for producing a yarn in which at least two threads with twists in individual threads are produced in a single combustion process.

Threads are preferably supplied from a single conventional draft mechanism, with the feed points preferably arranged symmetrically with respect to the plane passing through the intermediate position of the concentrator.

)로부터의 별도의 사조들을 연신하는 드라프트 수단과, 그 별도의 사조들을 집중시키기 위한 집중수단과, 절단된 사조를 흡인하기 위해 집중수단에 인접히 배치된 흡인수단과, 집중된 사조들에 꼬임을 부여하고 권취하기 위한 회전 스핀들로 구성되어 단일 작동으로 2개의 주행 사조들로부터 2합 연사를 제조하기 위한 장치에 있어서, 꼬임 봉쇄 수단이 상기 집중 수단부근에 설치되어 하나의 사조가 절단된 때 다른 사조가 그의 정규주행선에서 측방으로 이동하여 그 꼬임봉쇄수단과 드라프트수단 사이의 상기 다른 사조의 부분에 꼬임이 가해지는 것을 봉쇄하여 그 사조를 절단시키게 된 것을 특징으로하는 합연사 제조장치를 제공한다.The present invention is another investigation (

Draping means for drawing separate threads from), a concentrating means for concentrating the separate threads, a suction means disposed adjacent to the concentrating means for sucking the cut threads, and twisting in the concentrated threads An apparatus for producing double-ply twisted yarns from two traveling threads in a single operation, consisting of a rotating spindle for imparting and winding, the twist closing means being installed near the concentrating means so that one thread is cut when the other thread is cut. Is moved laterally from its regular running line to block the twist being applied to the part of the other thread between the twist block means and the draft means to cut the thread.

The apparatus of the present invention essentially comprises a standard spinning machine provided with traft mechanisms for feeding thread to the trabella of a conventional ring spindle via a conventional yarn guide, such as a single snail wire.

In the application of the present invention, each draft mechanism is adapted to supply two separate threads to the intensive guide, in which the threads are two-ply and fed to the spindle.

Yarns of the "double-rove" type can be made without further modification.

The yarn manufacturing part shown in FIGS. 1-8 comprises a part of a spinning machine. The yarn manufacturing portion comprises thread feeding means in the form of a conventional draft mechanism 2, which drafts a pair of threads 3, 3 'and rings the threads through the snail wire 4 Spindle Spindle 6 To Trabela 5, the spindle of which twists the threads to make yarn 9. A vacuum suction conduit 20 is installed below the roller 2 to suck the end of the cut yarn when one or both of the threads 3, 3 'are cut. The concentrator guide assembly 12 includes an inlet 21 of the suction conduit 20 and a guide 14 having a slot arranged to focus the threads at point Y. Concentrator guide assembly 12 constitutes part of assembly 10 further comprising means 13 disposed below and above snail wire 4.

As will be evident from the description below, the means 13 acts to contain the twist and cut the thread, essentially including a pair of rollers 7, 8. The pair of rollers are rotated at a circumferential speed approximately equal to the delivery speed of the yarn, and are arranged such that intermittent nips are formed therebetween.

One roller 8 has a flat roller, while the other roller 7 has a cut semi-cylindrical recess 11 (second and third degrees) at one side of its length. The main part 11 is positioned so that the driving threads pass through the center of the intermittent cycle as the roller rotates. However, in accordance with the features of the present invention, the length of the recess in the longitudinal direction of roller 7 as shown in FIGS. 2 and 3 is such that it is slightly smaller than the spacing of the thread, 3, 3 'in the drift roller 2. have.

Concentration guide 14 is discharged at a position about 3 cm from where the yarns pass through, in the absence of rollers 7, 8, where the yarns are gripped by the front drift roller 2. The concentrator 14 rarely moves toward the flammable spindle 6, but when one thread is cut, it is installed to move laterally with respect to the normal driving direction of the thread by sufficient lateral traction applied by the remaining thread.

In the normal operation of the apparatus (FIG. 2), thread 3, 3 'is drifted by the front drift roller of the drift mechanism, and the guide 14, a pair of rollers 7, 8, snail wire 4 Via spindle 6 via During rotation of the rollers 7 and 8 a twist block is made between the spindle and the concentrator 14 by means of the nips of the two rollers in the part other than the recess of the rollers 7. In this way, the progression of the twist to the Y point along the concentrated threads is periodically blocked so that the periodically changing twist is applied to each thread 3, 3 ', and the woven twisted yarn is a unidirectional twist that changes periodically. To have.

The yarn produced is shown in FIG. 12. Here, it can be seen that there are many twists in the joint and periodically repeats the A and B areas of the joint structure. In area A of many twists, the twist of each thread is opposite to the twist of twisted yarns, and the twist of yarns in area B of less twists is in the same direction as twisted yarn twists.

In particular Figure 3 shows the reaction of the device to the cutting of one of the threads, ie 3 '. The cut end of this thread is sucked into the inlet of the suction conduit 20 as shown at 21, while the other thread 3 continues to run on the spindle 6 as a faulty insulator. Due to the tension of thread 3, for example, a lateral force of 7 g weight is exerted immediately on the laterally movable guide 14. This force is sufficient for Movement 3 to move the guide laterally relative to the line of travel. The recess 11 of the roller 7 has a width that allows the thread to be positioned off the edge of the recess as shown in FIG. Movement 3 is held between rollers 7,8 and thus blocks the twisting along the movement towards the drift rollers. The twist between this nip point and the front drift roller 2 quickly declines because the thread continues to run on spindle 6, thus weakening the thread's engagement force, separating the fibers, cutting the thread, and cutting the end of the aspirated conduit 20 Aspirated by This cutting is achieved relatively quickly before the single threaded part reaches the spindle 6 yet.

The axial length of the recessed part 11 of the roller 7 must be chosen with many considerations. That is, the length should be small enough to provide a suitable edge for gripping at both sides of the recess, but large enough to allow the position of the joined threads to change in accordance with the original short period variation of thread.

通)을 용이하게 할 수 있으며, 또한 도핑시 정방 보빈의 용이한 통행을 가능케 한다.4-6 show assembly 10 in more detail. The twist block and thread cutting means 13 comprise a cradle 15 composed of a pair of plates 16, 17 connected to each other by a rod shown in FIG. In the plates 16 and 17, a central partial circular seat 19 is formed, in which the cradle is supported by the roller 8, the roller 8 being in cradle operation (4th and 5 degrees) and withdrawn. It acts as a bearing allowing rotation between (dotted line in Figure 6). In general, roller 8 is rotatably mounted to bracket 22 which is common to a number of cradles forming part of each adjacent frame and is integrally fixed to the frame itself. On the other hand, the roller 7 is provided in each part separately, is arrange | positioned at the slot 23 in the front-end | tip part of board 16, 17, and it is supported by the cradle so that removal is possible, and it engages with roller 8 and frictionally drives. Roller 7 can be easily removed from the cradle 15

It can facilitate the transportation and also facilitate the passage of square bobbin during doping.

In cradle operation, the trailing ends of plates 16 and 17 are engaged under the shaft 24 supported by bracket 22. The axes of the fixed shafts 24 and the rollers 7, 8 are arranged on a common plane which is actually perpendicular to the running direction of the thread. The cradle is laterally on the shaft 24 by the action of a sleeve 25 fixed to the shaft 24 by means such as a grub-screw 26 and an arch plate 27 supported by the rod 18. It is impossible to move.

In addition, the sleeve 25 supports the strut 29, and the thread guide assembly is provided adjacent to the upper end thereof. By the installation of such a connecting column, an appropriate relative position of the focusing guide and the nip roller may be determined, and a spacing adjusting device may be provided if necessary. The concentrated guide assembly 12 includes a carrier 30 having a suction conduit 20 and a support pin 32 (FIG. 1), and an arm 34 having a concentrated guide 14 is rotatably mounted at an outer end of the support pin 32. . The carrier 30 extends rearward through the opening of the connecting column 29 and connects the conduit 20 to the suction tube of the frame by the movable connection 36.

A pair of inclined portions 54, 55 which provide a means for focusing the guide 14 by the arm 34 to prevent any lateral movement of the guide 14 and thus the driving crew from accidentally leaving the recess 11 of the roller 7. Located between them. Each inclined portion is disposed at the bottom of the carrier 30 and has short steep slopes 54a and 55b adjacent to the inner side. This steep slope prevents the lateral movement of the guide without noticeable lateral reactions between the guide and the inclined portion. The positions of the concentrated guide arm 34 in normal operation and immediately after cutting of the thread are shown in FIGS. 7 and 8, respectively.

9 and 11 illustrate other arrangements for cutting residual thread by friction instead of cutting the residual thread by fiber dispersion achieved by the nip roller of the FIG. 1 device. In each of these facilities, the thread guide is movably supported laterally but the thread cutting means is attached or formed integrally with the carrier 30. The remaining uncut thread is laterally moved with the movable concentrator in the manner shown in FIG. 3 to take the operating position with respect to the cutting means. 9 shows that the abrasive blades 70, 71 are formed at opposite edges of the arm 72 extending from the body portion of the recare 30 so as to surround the concentrated guide 14. The abrasive blade is arranged so that the untransmitted traveling thread is laterally moved together with the guide 14 to contact the uncut traveling thread to wear and cut the thread. The abrasive blades 70, 71 may be of rough metal or may be formed of a member, such as a velcron, of a number of short nylon hooks.

10 shows that cutting blades 73 and 74 are provided for accommodating and cutting uncut yarns. Instead of the cutting blades 73 and 74, a blade for achieving the scissors cutting action can be provided. Finally, FIG. 11 shows another installation using sharp opposing cutting edges 87 with blades 76, 77 having an angle greater than 90 ° with respect to the running direction of the thread.

Claims (1)

Separate survey (

Draft means (2) for drawing the separate threads (3, 3 ') from), a concentrating means (14) for concentrating the separate threads, and adjacent to the concentrating means for sucking the cut threads A device for producing double-ply twisted yarns from two traveling threads in a single operation, consisting of disposed suction means 20 and a rotating spindle 6 for imparting and winding the concentrated threads. The means 13 are installed near the concentrating means 14 so that the thread 3, when one thread 3 'is cut, moves laterally on its normal line of travel, between the twist containment means and the drift means. Apparatus for producing twisted yarns, characterized in that the twist is applied to the part of the other thread (3) to cut the thread.

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