JPS59158769A - Shifting and winding device for continuous thread - Google Patents

Abstract

PURPOSE:To prevent the occurrence of wrong shift as a result of a thread slippling down along the end face, by installing a guide plate which, when a bobbin is full of a thread, controls said thread so that it is positioned within a traverse range, and controls a thread on the empty bobbin side so that it is located in a peripheral groove position for grasping the thread. CONSTITUTION:When winding of a thread around a bottin B' is completed and the bobbin is full of the thread, the thread, which, at the beginning, runs from a traverse guide 4 to the package surface of a holder 15 through a friction roller 6, is disengaged from the traverse guide 4 and is caught by and engaged with a shifter guide to be transferred to a position located opposite to a peripheral groove S in an empty bobbin. Thereby, it is moved in a manner to slide over a roller 6, an empty bobbin B, and a guide plate 17, it is firstly caught in a notch 23 in the guide plate 17 to prevent movement of a package to the outside of a traverse range, it is then caught in a notch 22 in the plate 17, it, in turn, is moved right above the peripheral groove S with the cooperative aid of a guide 7, and it is grasped in the peripheral groove S. The difference in a peripheral speed between the package and a bobbin causes the thread to be pulled and broken off and wound around the empty bobbin, and this prevents the occurrence of wrong shift.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a yarn switching winding device, in particular, a plurality of bobbin holders rotatably protruding from a rotatable turret,
The present invention relates to a revolving type continuous yarn switching and winding device in which a bobbin is inserted into the bobbin holder and the bobbin is switched alternately to continuously wind the yarn.

In this type switching winding device, the yarn is normally wound onto the bobbin of one bobbin holder, and when the bobbin is full, the turret is rotated and the empty bobbin of the other bobbin holder is moved to the winding position. , the yarn running between the friction roller and the full bobbin is caught in the thread gripping circumferential groove formed at the tip of the empty bobbin, and the difference in circumferential speed between the full bobbin and the empty bobbin is used. This system cuts the thread connected between the thread gripping circumferential groove and performs switching winding, but since the thread gripping circumferential groove at the tip of the empty bobbin is located outside the area of the winding traverse, the friction roller If the thread connected between the full bobbins is shifted as it is to the thread gripping circumferential groove, the thread will fall off from the end face of the thread layer of the full bobbin, resulting in so-called end face drop, the tension of the thread will drop rapidly, and the thread will not be wound around the upper delivery roller. This causes switching errors.

The present invention has been made in order to eliminate the above-mentioned drawbacks. When one bobbin reaches a full bobbin, the turret is rotated to move the other empty bobbin to the winding position. A guide plate is applied to the threads connected between the roller and the package surface of the full bobbin, and the threads on the full bobbin side are placed in the middle of the winding yarn layer, and the threads on the empty bobbin side are placed in the circumferential groove for thread gripping within the traverse area. This problem could be solved by regulating the location.

The present invention will be explained below with reference to embodiments shown in the drawings.
- With reference to FIGS. 1 to 4, 1 is a frame, on which are fixedly installed two slide shafts 2 extending in the vertical direction, and a slide block 3 supported by the shafts 2 is attached to the slide shafts 2. It is raised and lowered by appropriate means not shown.

The slide block 3 includes a traverse device 52 that accommodates a drive mechanism for traversing the yarn Y1 by the traverse guide 4, a friction roller 6 that is connected to a drive motor (not shown) and rotates, and a roller that rotates in a direction parallel to the axis of the friction roller 6. A shifter guide 7 that moves forward and backward is provided.

8 is the casing of the friction roller 6, 9 is the turning guide of the present invention, 10 is its rotating shaft, and 11 is the turning guide 9.
It is a cylinder that operates.

Reference numeral 12 denotes a turret, which rotates around a shaft 13 in the direction of arrow A in FIG. The turret 13 supports rotatable bobbin holders 14 and 15, respectively.
B/ is inserted. The bobbins B, B/ have circumferential grooves S, S having a v-shaped cross section over the entire circumferential surface near the end surface thereof.
/have.

Y2 is a yarn wound around the bobbin 16 in a fully bobbin state.

Therefore, the turning guide 9 of the present invention is particularly illustrated in FIG.

Referring to FIG. 3, it consists of an L-shaped arm 16 that swings when the cylinder 11 is actuated, and a guide plate 17. The guide plate 17 has one end fixed to the bent arm of the arm 16 with a screw 18, and is attached to a bobbin. Opposite the holder 14.15 and extending parallel to its axis. The cylinder 11 is swingably attached to an arm rod 2o fixed to the frame 19 in order to swing the arm 16, and the round end of the cylinder 11 is connected to the rotation axis 1o of the arm 16.
The arm 16 is rotatably attached to a shaft 21 adjacent to the arm 16, and the radius of rotation of the arm 16 is as shown by the arrow in FIG. It is regulated so that it passes between the package surfaces of the full bobbin and reaches the position shown by the one-dot chain line in FIG.

Further, as shown in FIGS. 3 and 4, the guide plate 17 has a cutout eJ22 on the inner edge in the longitudinal direction at a position facing the circumferential groove S of the bobbin B fitted in the bobbin holder 14.
Cutouts 23 are provided on the outer edges in the longitudinal direction at positions facing the traverse area of the traverse guide 4, respectively.

The shifter guide 7 is connected to the shaft 24 as shown in FIG.
The cylinder 26 is normally in the retracted position shown by the dashed line, but when the yarn is switched and is taken up, the cylinder 26
Due to the action of
Bobbin B inserted in bobbin holder 14°16, B/
It is configured to move forward in the direction of arrow C until it reaches a position facing the circumferential grooves S and S/.

Now, when the winding onto the bobbin B' on the bobbin holder 15 is completed and the bobbin is full, the turret 12 rotates about the shaft 13 in the direction of arrow A in FIG. As a result, the bobbin holder 14 with the empty bobbin inserted comes into contact with the friction roller 6 and becomes the state shown in FIG. Since the traveling yarn Y1 moves forward to the yarn guide 2
5 and along the curved surface of the innermost part 2 of the thread guiding groove.
7, as shown by the dashed line in Fig. 1, it is pushed forward from the normal thread path and detached from the traverse guide 4.
The bobbin B is moved to a position facing the circumferential groove S of the bobbin B inserted into the bobbin holder 14.

On the other hand, the L-shaped arm 16 of the swing guide 9 is
11, the bobbin holder 1 swings about the shaft 10 in the direction of the arrow in FIG.
The yarn Y3 that had been passed on the package surface on the bobbin holder 14 is brought into contact with the inner edge of the guide plate 17, and as shown by Y4 in FIG. , a curved thread path that reaches the package surface on the bobbin holder 15 via the back surface of the guide plate and the outer edge of the guide plate.

Therefore, from the first traverse guide 4 to the friction, Flora 6 II 1. The yarn that was running on the package surface of the bobbin holder 15 is removed from the traverse guide 4 and is engaged and captured by the yarn guide 26 of the shifter guide 7.
Since the yarn is moved to a position facing the circumferential groove S of the bobbin inserted in the bobbin holder 14, the yarn once runs diagonally with respect to the line of the friction roller 6 and the bobbin holders 14 and 15. , a friction roller 6, and an empty bobbin inserted into the bobbin holder 14.

It sequentially slides in the axial direction on the guide plate 17 until it reaches a position perpendicular to the axis, and is first engaged and captured by the notch 23 on the outer edge of the guide plate 17 to move out of the traverse area of the package. The yarn is then engaged with and captured by the notch 22 on the inner edge of the guide plate 17, and moves the yarn directly above the circumferential groove S of the bobbin by a cooperative action with the yarn guide 26 of the shifter guide 7. As a result, the thread is engaged with and gripped by the circumferential groove, and due to the difference between the circumferential speed of the package and the circumferential speed of the bobbin on the bobbin holder 14, the yarn is pulled off and wound onto the empty bobbin. Next, the shifter guide 7 and the turning guide 9 return to their original positions, the yarn engages with the traverse guide 4 and winding begins again, and the full bobbin is removed from the bobbin holder 15 or 14 and replaced with an empty bobbin. It prepares for the next switching winding.

It is preferable that the inner surface of the circumferential groove of the bobbin is made rough to ensure gripping of the thread, and in FIG. 4, two bobbins are inserted on one bobbin holder. 1 bobbin holder on one bobbin holder.
Of course, one or three or more bobbins may be inserted, and the shifter guide 7° rotation guide 9 may be configured accordingly.

As described in detail above, the present invention rotatably protrudes a plurality of bobbin holders on a rotatable turret, inserts and attaches bobbins to the bobbin holders, switches alternately, and continuously winds yarn. In the continuous yarn switching winding device, the shifter guide detaches the traveling yarn from the traverse guide when winding of the yarn is completed and moves the yarn to a position facing the circumferential groove of the bobbin, and an empty bobbin. The thread that oscillates between the surface of the package and the package surface of the full bobbin and is passed between them is engaged and captured on the empty bobbin side at a position opposite to the circumferential groove of the bobbin, and on the full bobbin side at a position opposite to the traverse area of the package. Since a rotating guide consisting of a guide plate is provided, when winding is completed and the bobbin is replaced, the yarn falls off from the end surface of the package yarn layer of the full bobbin, resulting in so-called end surface drop, and the tension of the yarn suddenly decreases. It is possible to completely prevent switching errors such as lowering the winding angle to the upper delivery roller, and at the same time, the circumferential groove G of the bobbin, which exists outside the package traverse area, is made to face each other, and the swing of the swing guide allows the thread to be emptied. Coupled with the large winding angle of the yarn around the bobbin, the yarn is reliably engaged and gripped by the circumferential groove, making efficient and steady switching quick and easy. It was possible to do it.

[Brief explanation of the drawing]

Fig. 1 is a front view of the device of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 3, and Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2 when the swing guide is at the position shown by the dashed line in Fig. 2. It is a perspective view, and a part is shown in cross section. FIG. 4 is an explanatory diagram showing the relationship between various parts of the apparatus of the present invention. 8, B/...Bobbin, S, S/...Circumference PI, 4
...Traverse guide, 6...Friction roller, 7...Shifter guide, 9...Swivel guide, 13...Turret, 16.16...Bobbin holder, 1...Guide plate, 26... Thread guide Figure 1 Figure 2 'pJ3 Figure 4

Claims (1)

[Claims] Multiple bobbin halters are rotatably protruded from a rotatable turret, and the bobbins are inserted into the bobbin holder and switched alternately to continuously wind the yarn. The device includes a shifter guide that detaches the running yarn from the traverse guide when winding of the yarn is completed and moves the yarn to a position facing the circumferential groove of the bobbin, and a shifter guide that moves the yarn between the surface of the empty bobbin and the package surface of the full bobbin. A rotating guide consisting of a guide plate that engages and captures the thread that has oscillated and passed between the bobbin's circumferential groove on the empty bobbin side and the package's traverse area on the full bobbin side. A continuous yarn switching winding device characterized by being provided with.