JPS5811468A - Winding method of yarn in constant yarn speed feeder - Google Patents

Abstract

PURPOSE:To easily and efficiently wind yarn, by winding the yarn, fed from a constant yarn speed feeder, under forcible contact to a yarn accumulation drum with a forcibly contacting member. CONSTITUTION:Yarn Y is fed from a manufacture device 1 of textured yarn at a constant yarn speed, and guided to a yarn accumulation drum 14 through a feed roller 12 and yarn guide 13 while being sucked by an air sucker, if the yarn is slid between the drum 14 and a rotating forcibly contacting member 15, the yarn Y can be wound on the peripheral surface of the drum 14 without looseness and excessive tension, while the yarn Y can be forcibly contacted to the drum not to be removed when pulled out in the axial direction of a core, thus the accumulated yarn Y is wound to a yarn winding cone package 20, forcibly contacted to a winding roller 19 driven by a variable speed motor 18, through a guide 16 and traverse guide 17. At winding of the yarn, an accumulated quantity of the yarn is detected by photoelectric detector S1, S2 to control a winding speed of the yarn by a controller 21, and the yarn can be wound at a constant tension.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn winding method for winding yarn that is continuously processed and sent out at a constant yarn speed from a constant yarn speed sending device.

In general, the amount of yarn sent out from any constant yarn speed sending device such as a textured manufacturing device or a preliminary combustion machine of a spinning machine is wound around a yarn aggregation drum and temporarily stored in a package for winding the yarn. The yarn is fed and wound, but it is very difficult and time-consuming even for an experienced person to wind the yarn around the accumulation drum in a manner that does not loosen it, pull it too much, and prevent it from slipping off.

In view of the above, the present invention aims to accumulate the yarn sent out from a constant yarn speed sending device by pressing the yarn onto the yarn accumulation drum in an extremely simple and efficient manner using a pressing member, and to freely release the yarn accumulated on the yarn accumulation drum. The present invention provides a method for winding a yarn into a winding package at a constant winding tension.

Hereinafter, the method of the present invention will be explained according to a yarn winding device in a constant yarn speed sending device. Fig. 1 is a schematic configuration diagram of a textured yarn manufacturing device (1) which is an example of a constant yarn speed sending device, The filament bundle (4) pulled out from the yarn feeder (3) supported by the crele stand (2) is sent at a constant speed by feed rollers (5) and (6) to pass through the fresh water in the storage tank or to flow out. The filament bundle is fed into a fluid jet nozzle (8) for textured yarn υ loe through a water adhering device (7) for adhering clean water, etc., and placed in the fluid jet nozzle (8) to blow the jet stream. A textured yarn can be obtained by exposing the single filaments to a turbulent flow to separate them from each other, moving them around vigorously within the turbulent region, and continuously removing them from the turbulent region without applying tension. That is, at the moment when the filament is taken out from the disturbed region, the loosening of the filament creates a bulk winding state in which loops, muddy windings, coils, tangles, etc. are mixed irregularly, and then the feed roller (9) passes the heater (1o) depending on the case to the second winding state. The yarn is introduced into the yarn winding device (11) shown in FIGS.

The yarn (1) fed out at a constant yarn speed from the textured yarn manufacturing apparatus (1) is suctioned by an air sucker (not shown), and the feed roller (12) and the yarn guide (18) are connected to the yarn accumulation tram ( 1
At this time, the peripheral speed of rotation of the feed roller (12) and drum (14) is set to the same speed as the feeding speed of the yarn (T).

As shown in FIGS. 8 and 5, rotatable pressure contact members (1
5) by sliding it between the drum (14)
By not pulling the thread (1) too much on the circumferential surface so that it does not loosen, and by pressing the thread (1) so that it does not come off when the thread is pulled out in the axial direction of the drum, the thread (1) is After winding several times, the yarn (A) is accumulated on the drum (14), and the yarn (A) temporarily accumulated on the drum (14) is freely pulled out in the direction directly above the axis of the drum by the required amount of yarn, and the yarn is guided. The yarn (16) is passed through the yarn winding cone package (20) which is rotatably pressed against a winding roller (19) rotated by a variable speed motor (18) while being traversed by a traverse guide (17).
1) Wind up. During yarn winding, a photoelectric detector 81 detects increases and decreases in the amount of yarn accumulated on the yarn accumulation drum (14).
．． 82, and the controller G21) controls the peripheral speed of rotation of the winding roller (19), that is, the yarn winding speed, based on the input signals from the detectors 81 and 82, thereby moving the yarn (G) into the cone package C2.
0) with a fixed winding retention.

The pressing member (15) may be pressed before the yarn accumulation drum (14) starts rotating, or may be pressed after the drum (14) rotates at a constant circumferential speed.
) may be slipped between the drum (14) and the pressure contact member (15) and may remain in pressure contact even after being wound around the drum, or may be separated manually or automatically after a certain period of time. In addition,
The pressing member (15) can also be actively rotated at the same rotational speed as the drum (14).

The above yarn accumulation tram (14) i, t
.

As shown in Figure 4, the lower end surface is missing and the upper end surface (14a)
The rotating shaft (22) is fitted into the central boss (141)) and screwed in with the embedded bolt G2B), and the thread (1) temporarily accumulated on the drum falls down on the lower peripheral surface. In addition to providing a large diameter portion (14C) around the circumference to prevent
The upper end curve has an upper thread winding cone package C20.
The yarn accumulation drum (14) is provided with a convex portion (14(1)) having a substantially semicircular cross section to prevent the yarn from bunching up and coming out of the ring when feeding the yarn to the yarn accumulation drum (14). As shown in the figure, the drum is stepped by fitting the rotating shaft c22) on the inner peripheral surface and screwing the bolt (26) into the positioning screw hole (25) of the rotating shaft that communicates with the hole (24). It is also possible to fasten it with a large diameter portion (14e) around the lower end circumferential surface and to provide a convex portion (14d) having a substantially conical cross section around the upper end circumferential surface. The convex portion (14d) of the drum (14) can have any shape as long as the resistance when pulling out the yarn (Y) from the drum is small, and the upper end surface (14a) of the drum (14) and the yarn The distance between the guide (16) and the yarn guide (16) should be such that there is little resistance when the yarn slides around the drum's circumference and balloons, and the yarn guide (16) is placed directly above the axis of the drum (14). When the thread (Y) is drawn out from the citrus, deterioration of the thread due to bending by the thread guide (16) is prevented.

As shown in detail in FIGS. 3 and 5, the pressure contact member (15) is rotatably fitted onto a shaft c28) protruding from a rod c27), and one end of the rod (27) is attached to a bracket. A stopper (32) is rotatably supported on the rod (29) using the bin C80) as a pivot point, and a V bar (31) is extended from the other end to prevent the rod (27) from turning too much.
), (8B) are protruding from the bracket C29), and the bottle (27) and the bottle (8B) are installed on the rod (27) and the bracket C29).
34) and (85), when the rod is rotated about the bin (30) and the pressure contact member (15) is separated from the yarn accumulation drum (14), the rod c2
One end of 7) comes into contact with the stopper (32) and the pressure contact member (
15) is biased by a spring (36) to hold it in the position shown by the two-dot chain line.

As mentioned above, the pressure contact member (15) is connected to the spring (36).
The yarn accumulation drum (1
In addition to being in pressure contact with the peripheral surface of 4), it is also possible to make pressure contact with a cylinder device or the like driven by a pressure fluid.

By the way, the above yarn accumulation drum (1
If the relative speed of the unwound part of the thread winding cone package (20) to the constant rotation peripheral speed of 4) is small, the thread (1)
As the yarn is wound around the cone package C20), it accumulates on the drum (14) and increases, and conversely, if the relative speed is large, the yarn on the drum decreases as it is wound around the cone package (20). There, the yarn (Y) accumulates on the drum (14).
) photoelectric detectors S1 and S for detecting the presence or absence of
2 are arranged opposite to each other at the lower limit position and the upper limit position of the amount of yarn accumulated on the drum.

It goes without saying that the lower limit position and the upper limit position should be set at positions where the yarn does not wind up from the drum.

Based on the input signals from the photoelectric detector S1 at the lower limit position and the photoelectric detector S2 at the upper limit position, the controller (21) detects the yarn (1) on the yarn accumulation drum (14). ) is detected until the detector S2 detects the accumulation of yarn, the yarn winding speed of the cone package (2o) is controlled to be lower than the rotational circumferential speed of the drum (14), and conversely, the The yarn winding speed of the cone package (20)' is controlled more closely than the rotational circumferential speed of the drum from the time when the detector Sl detects the accumulation of yarn on the drum until the detector Sl no longer detects the accumulation of yarn.

The OFF diagram is a schematic configuration diagram showing the control by the controller C21), and shows a state in which no yarn accumulation is detected on the photoelectric detectors S1 and S2 yarn accumulation ram (14). To explain the symbols in the diagram, M: Variable speed motor H: High speed rotation (Cone package yarn winding speed > Drum rotation peripheral speed) L: Low speed rotation (Cone package yarn winding speed 6 Drum rotation peripheral speed) ) Sl: Switch that closes when photoelectric detector si detects yarn accumulation on the drum S2 Switch that closes when electric detector S2 detects yarn accumulation on drum R: Electromagnetic relays R3 and R4: Switch opened and closed by relay R, normally open state To explain in more detail the control of the yarn winding speed by the controller (21), the yarn (Y) sent out at a constant yarn speed from the textured yarn manufacturing device (1) is Feed roller (1
2) and the yarn guide (13), and press the yarn (1) onto the circumferential surface of the yarn accumulation drum (14).
The yarn winding cone package (2
When winding is started after the thread is hooked to the thread hooking part of 0) and punched, the thread (Y) is not completely stacked on the drum (14), so the photoelectric detection of the lower limit position is detected. Both the photoelectric detector 81° and the photoelectric detector S2 at the upper limit position do not detect the accumulation of yarn, and as shown in the OFF diagram, both switches S1 and S2 are open, and switch R84 is also open, and switch R
Since EI3 is connected to the low speed rotation side of the variable speed motor M, the yarn winding speed of the cone package (20) is controlled to be lower than the rotational peripheral speed of the drum (14), and the yarn C'
While the yarn i) is being wound around the cone package (20), it will then accumulate on the drum, and the detector S1 will detect the accumulation of the yarn (i), and the switch Sl will close. When yarn accumulation is detected and switch S2 is closed, electromagnetic relay R is activated, switch R83 is connected to the high-speed rotation H side of motor M, and switch R84 is closed, changing the yarn winding speed of the cone package (20) to the drum. (14) The rotation peripheral speed is controlled more closely, and when the amount of yarn accumulated on the drum decreases to the next level and the detector S2 no longer detects the accumulation of yarn, the switch S2 opens and the amount of accumulated yarn decreases further. When the detector 81 no longer detects the accumulation of yarn, the switch S1 opens, the electromagnetic relay R stops working, the switch R83 connects to the low speed rotation side of the motor M, and the switch R84 opens. By controlling the yarn winding speed of the cone package c20) to be lower than the rotational circumferential speed of the drum (14), the yarn (Y) is then accumulated on the drum.

In this way, the amount of yarn accumulated on the drum (14) increases and decreases between the lower limit position and the upper limit position until the winding of the cone package c20) is completed, and the yarn winding speed also increases as the yarn accumulates. The yarn (Y) is sent out at a constant yarn speed from the textured yarn manufacturing device (1), and the yarn (Y) is sent out from the textured yarn manufacturing equipment (1) at a constant yarn speed, and in an unprecedentedly free state, it can be used not only for cone packages but also for all kinds of bobbin windings. If the necessary amount of yarn can be fed to the take-up package and the yarn can be wound at a constant winding tension, and the traverse speed is kept constant, the yarn winding speed will be lower than the amount of yarn accumulated on the yarn accumulation drum (14). It can also perform a ribbon break function because it increases or decreases as the amount increases or decreases.

Although not shown, when only one photoelectric detector S is used, the yarn accumulation drum (14)
When the detector S, which is disposed opposite to the circumferential surface of the drum (14) at approximately the center in the axial direction, detects the accumulation of yarn ff) on the drum (14), the drum (14)
The variable speed motor (18) rotates at a speed considerably higher than the constant rotating peripheral speed of 4).
) to wind the thread at high speed, and the detector S detects the thread (Y).
Variable speed motor (18)
The winding is temporarily interrupted by stopping the drum (14
) by accumulating threads on the two photoelectric detectors S
1, the previous generation) can be rolled up in the same way as when using S2. If only one photoelectric detector S is used, the length of the yarn accumulation drum (14) can be shortened.

As described above, according to the method of the present invention, the yarn sent out from the constant yarn speed sending device is wound around the yarn accumulation drum using the pressing member, so that anyone can use the yarn without any skill. It is possible to wind the yarn very easily and efficiently without loosening it or pulling it too much, and also to prevent it from slipping out of the yarn accumulation drum.Moreover, it does not create tension on the yarn that has temporarily accumulated on the yarn accumulation drum. Since the yarn can be fed into the package in a free state, the yarn can be wound into all kinds of yarn winding packages at a constant winding tension.

[Brief explanation of drawings]

The drawings show an example of a yarn winding device in a constant yarn speed sending device that implements the method of the present invention, and FIG. 1 is a schematic configuration diagram of a textured yarn manufacturing device, and FIG. The figure is an enlarged view of the yarn accumulation drum and the pressure contact member, FIG. 4 is an axial sectional view of the yarn accumulation drum, and FIG. 5 is a sectional view taken along line A-A in FIG. 3.
FIG. 6 is an axial cross-sectional view of a different yarn accumulation drum, and the off view is a schematic diagram of a control circuit for yarn winding speed. (Y)-0・Yarn (1)...Fixed yarn speed sending device (
14)・1・Yarn accumulation drum (15)
... Pressure contact member c20) ... Yarn winding cage 4 Section 6

Claims (1)

[Claims] After the yarn sent out from the constant yarn speed sending device is pressure-wound on a yarn accumulation drum by a pressure contact member, the yarn is accumulated on the yarn accumulation drum, and the yarn accumulated on the yarn accumulation drum is wound in a yarn winding package. A method for winding yarn in a constant yarn speed sending device, characterized in that: