JPH01231770A - Method for changing yarn by automatic yarn changing take-up machine and that machine - Google Patents

Abstract

PURPOSE:To stably carry out rapid yarn changeover by adjusting the rotation angle of an arm for the winding angle of yarn and adjusting the moving speed of a yarn guide for the moving speed while winding the yarn to a bobbin. CONSTITUTION:Since a slide bar is moved leftward in the stage where a yarn guide 12 approached a spindle 4', the yarn guide 12 is simultaneously moved leftward and a yarn Y passes through the position of a blade cut while being in contact with a bobbin 5' at a defined winding angle and wound by the bobbin 5'. The winding angle of the yarn onto this bobbin 5' is adjusted by adjusting the rotation angle of an arm 14 through the adjustment of a screw 28 for linking a cylinder 13 to a link pin 29. The moving speed while winding yarn onto the bobbin 5' is changed by adjusting the moving speed of the yarn guide 12, i.e., the moving speed of a second cylinder.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn switching method and device for a revolving type automatic yarn switching winding machine that has excellent operational stability. More specifically, the stable and high thread switching success rate is 1.
This invention relates to an automatic thread switching method and device thereof.

[Prior Art] As a technological innovation for melt-spinning take-up devices, automatic yarn switching take-up machines have been used for the purpose of labor saving. Many of these automatic yarn switching winding machines employ a revolving (turret) system as shown in FIGS. 9 to 11. (Figure 9 is a front view showing steady winding.
．． FIG. 11 is a front view and a side view showing the thread switching date, respectively. ) This revolving type automatic thread switching winding machine includes a turret plate 7, and a turret plate 2 mounted perpendicularly to the turret plate.
Parallel wooden spindle axes 4, 4' are provided (FIG. 9). The yarn Y is located at the winding position during steady winding (in Fig. 9, the spindle lN located at the top right of the spindle 1 to the top of the board
The material is traversed by the traverse device 2 located above the position 14, and is wound onto the bobbin 5 mounted on the spindle shaft 4 at the winding position while being pressed by the touch roll 3 (FIG. 9). When the wound yarn reaches a constant winding t11, the turret plate 7 rotates to the right, causing the two spindle shafts 4, 4' to rotate
II;'l, the spindle shaft 4 that was being wound and the new spindle shaft 4' that will be winding from now on are switched by 180 degrees (Fig. 10), and then the yarn Y is cut. The winding is switched to a new bobbin 5'. In the white dynamic seedling winding machine, the operation of switching the yarn plays the role of the most single wave j111, and this yarn switching is generally performed by the following mechanism.

The turret disc 7 of the winding machine has spindle shafts 4, 4' perpendicular to the turret disc, and guide bars 8, 8' parallel to the spindle shaft for regulating the yarn path. Figures 9 to 11. The guide bar 8.8' is generally installed on a line that is perpendicular to a line connecting the centers of the two spindle shafts 4.4', and on a line that is orthogonal to the line that connects the centers of the two spindle shafts 4.4'. This point is equidistant from the point on both sides.In addition, this guide bar 8°8' has a blade cut 6.6' near the yarn catching blade cut 6.6' provided at one end of the small bins 5, 5'. A stopper pin 10 is provided at a position within the traverse width (
Figure 11).

When the turret rA7 rotates to the right during thread switching 11), this guide bar 8.8' moves the spindle shaft 4.4'
At the same time, it rotates 180 degrees around the rotation axis of the turret board 7. As the turret Yu rotates, the yarn Y is wound around the bobbin 5, which is being wound, via the guide bar 8. In other words, even when the turret disk finishes rotating, the yarn continues to be wound up because it travels from 1 to rubber device 2 to the guide bar 8 without contacting the new bobbin 5' (which is rotating). It continues to be wound on the bobbin 5 (Fig. 10).

Next, or simultaneously with the rotation of the turret disk, the yarn odd U guide 9 located above the traverse device 2 catches the yarn Y and moves to the position shown by the broken line in FIG. The thread is turned toward the blade cut 6' side, and is then removed from the first half-verse device 2, and runs along the thread path shown by the dashed-dotted line in FIG. At this time, yarn Y
is locked by the stopper pin 10 of the guide bar 8, so that winding can be continued without coming out of the traverse width of the bobbin 5.

Above the spindle shafts 4, 4', there is a threading bar 11 provided parallel to the spindle shaft. The arm is supported by a cylinder 13
The bar 11 is connected by a connecting pin 29, and rotates reciprocally about the fulcrum pin 15 by the reciprocating movement of the cylinder 13. In other words, the thread hook reciprocates in the direction in which the bar 11 moves toward and away from the spindle shaft.

After the optical V-guide 9 moves as described above, the cylinder 13 pushes the connecting pin 29 to the right, which causes the arm 14 and the σ threading bar 11 to move to the right about the fulcrum pin 15 (i.e., to move the spindle 1033 and the position indicated by the dashed line in FIGS. 11.

Here, the thread guide 12 is fixed to the thread threading bar so that the thread guide 9 is located at a position approximately corresponding to the thread path (-dotted chain line) of the thread Y that is removed from the traverse device 2 and runs. Therefore, when the thread bar 11 rotates toward the thread Y and moves to the position indicated by the broken line, the thread Y is moved between the new bobbin 5' and the guide bar 8. While being hooked on the inclined part 27 (see FIG. 8), it slides toward the valley-like deep part 26 and fits into the deep part 26 of the groove. In this way, from when the yarn Y starts to be hooked on the thread guide until it slides to the deep part 26 of the groove, the yarn Y passes over the bobbin 5' by the blade cut 6'.
in the direction of
, and yarn Y moves at the same time as blade cut 6.
′ is captured.

When the yarn Y is captured by the blade cut 6', the yarn from the blade cut 6' to the guide bar 8 is cut and wound onto a new bobbin 5'. Next, the yarn is hemmed 9 within the traverse width, and yarn switching is completed.

In conventional thread switching, the thread hook hooks the thread Y on the inclined part 27 of the kite 12, and while pressing the thread Y against the bobbin 5' with the thread hook jJ, the thread hook hooks the thread Y in the inner part of the groove of the guide. 26
The yarn Y is moved in the direction of the bobbin 5' during this movement.
This was a problem because when the yarn passed over the blade cuts 1 to 6' (the yarn path shown by the broken line), the yarn was captured by the blade cuts 1 to 6'.

However, in this conventional method and device, the yarn is wound around the bobbin 5' (the winding angle θ and the position of the yarn on the yarn 1fl/L guide 12 are simultaneously changed at high speed). Since threading involves a movement, even if a threading failure occurs, it is not possible to determine whether the cause of the threading failure is due to the corner of the thread or the moving speed of the thread.In other words, it is difficult to determine the best threading success rate. In order to obtain this, it is necessary to set the value of the winding angle θ and the speed at which the yarn is moved while winding it around the bobbin to optimal values, but with conventional methods and devices, it is not possible to obtain these optimal values. In reality, this was not possible.

[Problems to be Solved by the Invention] Therefore, the present invention provides an automatic thread that can easily set the operating conditions of the thread guide to the optimum value in order to stably obtain the best and highest thread switching success rate. The main object of the present invention is to provide a yarn switching method and device using a switching winder.

[Means for Solving the Problem] In order to achieve the above object, the present invention provides a turret board 7,
Installed vertically on the turret board [two wooden spindle shafts 4, 4' and two threaded guide pars 8.8',
A thread hook installed above the spindle shaft parallel to the spindle shaft is a bar 11, and a thread hook attached to the bar is provided with at least a guide 12. In the machine, when switching the yarn to be wound through the yarn path regulating guide bar after rotating the turret disk, the yarn hook moves the guide close to between the two spindle shafts. an automatic thread switching winding that guides the thread to a blade cup 1 to a position of a bobbin inserted in the spindle shaft by moving the winding in a direction parallel to the axial direction of the spindle shaft; Automatic thread switching method using a take-up machine; and Kulef 1 to board 7, two parallel spindle shafts 4.4' mounted perpendicularly to the turret board, and two thread path regulation guide bars 8.8. ', and a repolving type automatic thread switching winding machine, which has at least a thread hooking bar 11 installed above the spindle shaft and parallel to the spindle shaft, the slide bar 18 being connected to the spindle shaft The thread hook is capable of reciprocating in a direction parallel to the axial direction of the shaft, and the thread hook is hooked to the bar.
) (receiving the blade 12 to the slide bar 18), and the thread hook moves the guide in a direction approaching between the two spindle shafts and in the axial direction of the spindle shaft. It consists of an automatic yarn switching winding machine that guides the yarn to a blade cutting position of a bobbin inserted in the spindle shaft by moving the yarn in parallel directions by independent moving means.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The yarn switching method and the automatic yarn switching winding machine according to the present invention will be explained below with reference to FIGS. FIG. 1 is a front view showing when the thread is switched, and FIGS. 2 and 3 are side views showing the state when the thread is switched in the order of operation. 4 and 5 are a front view and a side view, respectively, showing the steady winding before switching the thread. FIG. 6 is an enlarged side view showing the thread hook bar, slide bar, and thread guide, and FIG. 7 is a sectional view of VI[-VI in FIG. 8
The figure is an enlarged view of the thread guide.

In the apparatus shown in FIGS. 1 to 8, as shown in an enlarged view in FIG. 6.7, the thread guide 12 is fixed to the slide bar 18 with screws 20.

Further, the slide bar 18 is connected to a second cylinder 16 (means for reciprocating the slide bar in a direction parallel to the axial direction of the spindle shaft) via a connecting pin 17.

The second cylinder 16 has an angled threading bar 11
It is connected by a pin 24 to a bracket 23 fixed to. And, in the part of the bar 11 corresponding to the slide bar, a pair of angle bars 19 and 19' are installed.
They are mounted to form a slit groove 25 (FIG. 7) between them, the slide bar 18 is engaged into this slit groove, and a plurality of pins 21, 21', 21'' are provided on the slide bar 18. The slide bar is inserted into the elongated holes 22, 22' and 22'' and the stop holes provided in the angle pars 19 and 19', and the slide bar is installed so that it can reciprocate.

In this way, the method according to the present invention moves a series of operations of the thread guide, which performs the thread switching operation after the rotation of the turret, in the direction of approaching between the two spindle shafts, and then The main feature is that the movement is made in a direction parallel to the axial direction of the spindle shaft, and the mechanism of the movement may be the same as that of the conventional method described above.

Kei, the device according to the present invention is designed in this way. It is movable and has a thread guide.
The main feature is that the movement is performed by independent moving means in a direction approaching between two spindle shafts and in a direction parallel to the axial direction of the spindle shafts, and other mechanisms are not required. may be the same as the conventional device described above.

[Function] The yarn Y is steadily wound on the bobbin 4 (Fig. 4-5).
, when a certain capacity is reached, the turret board 7 moves 18 to the right.
Rotate 0 degrees. Even after the rotation of the turret plate is completed,
The yarn is continuously wound onto the bobbin 5 which is being wound through the guide bar 8 (solid line in Fig. 1.2).

Next, the yarn guide 9 catches the yarn Y and moves in the direction of the arrow to the position shown by the broken line in FIG. I will do it.

Next, as the cylinder 13 moves to the right, the arm 14 and the thread bar 11 rotate to the right (rotation angle A). As a result, the thread collar 11 and the thread hook 12 move in the direction approaching the spindle shaft 4' to the position indicated by the broken line in FIG. 1.2. In this way, the thread u
While the bar 11 etc. is rotating, the threading is carried out by the guide 12.
The thread Y is hooked on the inclined part 27, and then moved to the deep part 26 of the groove.

The operation up to this point is basically the same as the conventional operation. However, at the stage when the thread hook has completed its rotational movement in the direction in which the guide 12 approaches the spindle shaft 4', the thread Y has a constant winding, and the angle 0 is in contact with the bobbin 5' (the broken line in FIG. 1). Moreover, it runs in contact with the groove deep part 26 (dashed line in Fig. 2).
However, even at this stage, the running yarn is wound around the bobbin on the right side of the blade cut 6' (FIG. 2), so the yarn is not yet captured by the blade cut 6'.

In the method and apparatus of the present invention, the slide bar 18 moves to the left in the second sill 16 (in the direction of the arrow shown in FIG. Move to position 1 shown in FIG. During this move,
Since the yarn Y passes through the position of the blade cut 6' while being in contact with the bobbin 5' at an angle θ, the yarn Y
is captured by the blade cut 6'.

The yarn is captured by the blade cut 6' and then transferred to the bobbin 5.
When the yarn is wound up at position 1, the yarn guide 9 returns to the position shown by the solid line in FIG. 2, so that the yarn Y is engaged with the traverse device 2 and steady winding is started.

The winding angle of the yarn around the bobbin 5' can be changed from angle 0 by adjusting the rotation angle A of the arm 14. This can be done by adjusting the screw 28, etc.

Further, the speed at which the thread is moved while being wound around the bobbin can be changed by adjusting the moving speed of the thread guide 12, that is, the speed of the reciprocating motion of the second cylinder 16.

The above-mentioned thread hooking operation and a series of thread switching operations such as rotation of the thread lever 1 to the board can be performed by normal sequence control.

[Effects of the Invention] As described in detail above, in the thread switching method and automatic thread switching winding machine according to the present invention, the winding angle θ of the thread on the bobbin and the winding angle θ of the thread on the bobbin and the movement of the thread while being wound on the bobbin are Since the threading speed can be adjusted independently, it is possible to easily find the operating conditions of the threading guide that will stably obtain the best threading success rate. The switching is performed stably.The thread hooking mechanism can easily set the operating strip 1'1 to the optimum value.

[Brief explanation of the drawing]

1 to 8 show an embodiment of the yarn switching method a3 and the automatic yarn switching winding machine according to the present invention. FIG. 1 is a front view without showing the state when the thread is switched, and FIGS. 2-3 are side views showing the states when the thread is switched in the order of operation. 4 and 5 are a front view and a side view, respectively, showing the steady winding before switching the thread. Fig. 6 is a side view showing an enlarged view of the thread hook [flange, slide bar J3 and thread hook];
Figure 6 is a sectional view of VI [-Vl, and Figure 8 is an enlarged view of the threading guide. Figures 9 to 11 show the conventional system switching method and the automatic threading guide. This shows a switching winding machine. Fig. 9 is a front view showing steady winding before thread switching, and Figs. 10 and 11 are a front view and a side view, respectively, showing thread switching. [Explanation of symbols] 2...Traverse device, 4, 4'...Spindle shaft, 5.5'...Bobbin, 6,6'...Blade cutter I~, 7...Turret board , 8,8'...
・Guide bar, 11... Thread hook is bar, 12...
・Thread hook guide, 13...Cylinder, 14...
・Arm, 16...Second cylinder, 18...Slide bar, Y...Thread

Claims (2)

[Claims] (1) A turret disk 7, two spindle shafts 4, 4' and two thread path regulating guide bars 8, 8' mounted perpendicularly to the turret disk, above the spindle shaft relative to the spindle shaft. In an automatic thread switching winding machine comprising at least a threading bar 11 provided in parallel and a threading guide 12 attached to the threading bar, the thread path regulating guide bar is removed after the turret disk is rotated. When switching the yarn to be wound through the thread, the thread guide is moved in a direction that approaches between the two spindle shafts, and then the thread guide is moved in a direction parallel to the axial direction of the spindle shafts. An automatic yarn switching method using an automatic yarn switching winding machine, characterized in that the yarn is guided to a blade cutting position of a bobbin inserted in the spindle shaft by moving the yarn to a blade cutting position of a bobbin inserted in the spindle shaft. (2) A turret board 7, two spindle shafts 4, 4' and two thread path regulating guide bars 8, 8' mounted perpendicularly to the turret board, and a shaft above the spindle shaft relative to the spindle shaft. This is a revolving type automatic thread switching winding machine having at least a thread hooking bar 11 provided in parallel with the spindle shaft, the slide bar 18 being capable of reciprocating motion in a direction parallel to the axial direction of the spindle shaft. By hooking the threading guide 12 to the slide bar 18
and by moving the threading guide in a direction approaching between the two spindle shafts and in a direction parallel to the axial direction of the spindle shafts by respective independent moving means. An automatic thread switching winding machine characterized by guiding thread to a blade cutting position of a bobbin inserted into a spindle shaft.