SU1416547A2 - Device for wave-shedding loom for winding weft onto shuttle pirn - Google Patents

Abstract

The invention relates to means for winding flange spools of duck plotters on weaving machines with a wave-like movable throat and allows for reducing the breakage of the weft yarn. For this, the device for winding the weft yarn on the spool 1 of the shuttle additionally has two thread guide plates 6 and 7 fixedly mounted parallel to the winding plane and contacting the spool flange located on the side of the rotating drum. Plates 6 and 7 are located one relative to another at a distance that allows the spool 1 to pass between them, one of the plates on the output side of the spool from the contact zone. It has an open groove 9 for guiding the thread, located in the plane of the spool flange and directed opposite to the rotation of the powered cartridge. 2. 5 ip c &

Description

SL

four

The invention relates to means for winding flange spools of duck plotters on weaving looms with a undulating pattern. It is known device auth.St. No. 398712.

A disadvantage of this device is that the thread is very tightly tensioned between the two wound flange spools, in particular when working with high tension on the thread. With the introduction of a full flange shag in the weft yarn and transfer to the transport device, the plotters to feed them in the pharynx, the thread is taut, even more tensioned 5 as a result, it tears at an indefinite place. An excessively short tip of the thread on the weft yarn is not caught in the main threads. Weaving defects are obtained.

The purpose of the invention is to increase the reliability of the device by reducing the weave breakage.

FIG. 1 shows a simplified depiction of the device for winding in section along the line A-A in FIG. 2; FIG. 2, a simplified depiction of the device in FGN 1 in a section along the line B-B of FIG. one; FIG. 3 shows the relative position of the flange spool, the yarn tensioning element and the winding finger in the initial position of the winding, top view | FIG. 4 shows an open groove for guiding the filament in a perspective view from the direction of the arrows B to. , figs. 1, 2 and 35 in FIG. 5 is another embodiment of FIG. four.

The device for winding the weft yarn on the spool of the shuttle 1 contains a constantly rotating driver cartridge 2 provided with a movable finger 3 on the coils. The spools 1 are put on the support 4 located on the drum 5, which periodically rotates along arrow G. The winding position of the weft yarn on the spool 1 is indicated by the position D. the winding position D and the removal position of the spool from the support 4 is located in the interlocking zone G. two thread direction plates 6 and 7 parallel to the winding plane and in contact with the flange of the spool 1 are located on the side of the drum 5, while the plates 6 and 7 are located one relative to another at a distance that provides ...

you ts -. 20

25

JQ, -, 40

, 45 jO 35

The passage of the bobbin between them. These plates 6 and 7 serve to precisely position the flange spools 1 in front of the driver chuck 2. The weft thread 8, which comes off the spool 1 in the G positions, is inserted into the open groove 9 for guiding the thread. The groove 9 is located on the plate 6 in the plane of the flange of the spool. The thread 8 thus deflects to the position B and Z so that its length is longer than the distance from the positions of the shank in zones D and G. The thread, when the drum 5 rotates, easily leaves the groove 9, after which its tension decreases.

When the device is in operation, the weft thread 8 is caught by the finger 3 and pulled onto the spool 1 previously centered by means of the plates 6 and 7, since the spool, one of the flanges, engages with the plates 6 and 7. When the thread is wound, it enters the groove 9, whereupon it is wound seamlessly onto the barrel of the spool. When moving the drum 5. to the next position, the thread comes out of the groove 9 and its tension decreases, because by deflecting it in the groove 9 when winding on the spool, a certain amount of thread is formed, which is released when the drum 5 rotates.

In this way, the breakage of the yarn during the process of winding it on the spool and during the further transfer of weft builders to the conveyor is reduced.

Formula of invention

Device for multi-weaving loom for winding the weft yarn on the spool of the shuttle auth.St. No. 398712, characterized in that, in order to improve the reliability of the device by reducing the breakage of the weft yarn, it additionally has two thread guide plates fixedly mounted parallel to the winding plane and in contact with the spool flange located on the side of the rotating drum, while the plates are located one relative to the other at a distance allowing the shuttle to pass between them, one of the plates on the side of the output of the spool from the contact zone having an open groove for filament board

FIG. five

h

 a 0

f | U4

Editor I. Segl Nick

Compiled by S. Artamonov Tehred L. Serdyukova

Order 4036/25

Circulation 420

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

.j

Proofreader M.Sharoshi

Subscription

Claims (1)

Claim A device for a multi-threaded loom for winding a weft thread on a hook spool according to autosw. No. 398712, characterized in that, in order to increase the reliability of the device by reducing the breakage of the weft thread, it additionally has two threading plates fixedly installed parallel to the plane? winding bones and spools in contact with the flange of the spool located on the side of the rotating drum, the plates being located one relative to the other at a distance that allows the shuttle spool to pass between them, one of the plates on the side of the spool exit from the contact zone has an open groove for guiding the thread located in the plane of the spool flange located on the drum side and directed towards rotation of the lead cartridge. b figure 1