JPS6132936Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a switching winder. For more details,
Relating to an improvement in a switching winder having a rotatable turret, a plurality of bobbin holders fitted with yarn take-up bobbins and rotatably protruding from the turret, and a separator insertable between the plurality of bobbin holders. .

In a switching winder, which is composed of a rotatable turret and a plurality of bobbin holders equipped with yarn take-up bobbins and rotatably protruding from the turret, the turret is rotated to switch from a fully wound bobbin to an empty bobbin. This may cause an abnormality in which the end of the thread connected to the full bobbin winds around the empty bobbin. As the winding speed increases, a large amount of airflow is generated accompanying the empty bobbin, and the above-mentioned phenomenon is becoming more noticeable. As a countermeasure against this problem, conventional methods include blowing compressed air toward the fully wound bobbin after rotating the turret, as disclosed in Japanese Utility Model Application No. 51-17550, and Japanese Patent Application Laid-open No. 54-64148. A method of inserting a separator between a fully wound bobbin and an empty bobbin after rotation of the turret as disclosed in the above publication, and a combination of both methods described above (Utility Model Application No.
103558) etc. have been proposed.

However, in the method of blowing compressed air, it is difficult to completely prevent entrainment due to the increased accompanying airflow due to the increased winding speed. Also, 1
In a multi-spindle winding machine in which a large number of bobbins are attached to one winding spindle, each bobbin is provided with an air nozzle for blowing out compressed air, which results in a large amount of air consumption and is difficult to put into practical use.

In addition, in the conventional method of inserting a separator between a fully wound bobbin and an empty bobbin, the tip of the separator only reaches the position where the center lines of both bobbins connect.
It is difficult to completely eliminate the influence of the airflow accompanying an empty bobbin on a full bobbin, and especially when winding fine denier yarn, thin and light yarn is likely to be caught in the airflow accompanying the empty bobbin. With this method, it is not possible to completely prevent the ends of the threads connected to the fully wound bobbin from becoming entangled.

In view of the above-mentioned problems, the present invention can almost completely prevent the yarn end of the yarn connected to the full bobbin from being caught in the empty bobbin, and when it is adopted in a multi-spindle switching winder, compressed air can be The purpose is to provide a device that consumes less.

The present invention provides a switching winder having a rotatable turret, a plurality of bobbin holders fitted with yarn take-up bobbins and rotatably protruding from the turret, and a separator insertable between the plurality of bobbin holders. In the machine, the separator is connected to a link of a four-bar mechanism, so that the separator and the four-bar mechanism are in a folded standby position on the side of the plurality of bobbin holders and in an extended position in a gap between the plurality of bobbin holders. The above-mentioned objectives are achieved by a switching winder adapted to assume an intrusive operating position. In the present invention, the four-bar mechanism is a mechanism in which four links are connected by pins so that they can rotate relative to each other, and preferably a double-lever mechanism or a double-crank mechanism. The swinging links of these mechanisms are connected and the separator is connected to the link facing the fixed link. More preferably, an entrainment prevention plate extending in the axial direction of the bobbin holder is fixed to this swing link, so that the accompanying airflow can be more completely blocked.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings showing embodiments of the present invention. Figures 1 and 2
The figure is a front view of an embodiment of the present invention, and in FIG. 1, the separator and the four-bar mechanism are in a folded standby position beside a plurality of bobbin holders;
Also shown in FIG. 2 is an operating position in which the separator and four-bar mechanism are extended and enter the gaps between the plurality of bobbin holders.

A slide block 12 is movable up and down along two slide shafts 11 attached to the winder 1, and a traverse box 1 is attached to the slide block 12.
3 and case 14 are attached. The traverse box 13 includes a traverse guide 13a for traversing the yarn Y, and the case 14 rotatably supports the friction roller 13. A turret 17 is rotatably supported on the winding machine 1, and two bobbin holders 16, 16' are mounted on the turret 17.
is protruded so that it can be rotated. bobbin holder 16,
One or more bobbins 18 or 18' are attached to each of the bobbins 16', and the yarn Y is wound onto the bobbins 18, 18'.

A swing arm 22 is attached to a pin 21 attached to the winder 1.
is swingably supported. The swing arms 22 are provided at intervals in the axial direction of the bobbin holders 16, 16'. Further, in FIGS. 1 and 2, a swing rod 23 is rotatably supported at a slight distance from the swing arm 22. Swing rod 23
extends in the axial direction of the bobbin holder 16.
A swinging arm 24 is integrally fixed to the swinging rod 23, a swinging rod 27 is integrally fixed to the lower end of the swinging arm 24, and a connecting rod 26 is attached to the swinging rod 27.
Alternatively, a swing rod 27 integrally connected to a connecting rod 26 is swingably supported at the lower end of the swing arm 24. A pin 25 pivotally connects the connecting rod 26 and the swinging arm 22 so that they can swing. Therefore, the pin 21, the swinging arm 22, the swinging rod 23, the swinging arm 24, the pin 2
5. A four-bar mechanism consisting of a connecting rod 26 and a swinging rod 27 forms both lever mechanisms.

Connecting rod 26 which is the shortest link between both lever mechanisms
An accompanying airflow shielding plate 35 made of an arc with a diameter slightly larger than the outer diameter of the fully wound bobbin, that is, the separator of the present invention, is integrally attached to the bobbin, and both lever mechanisms are connected as shown in FIG. When expanded, the accompanying airflow shielding plate 35 is arranged along the outer periphery of the fully wound bobbin. The accompanying airflow shielding plate 35, which is a separator of the present invention, extends in the axial direction of the bobbin holders 16, 16' (in the direction perpendicular to the paper plane of FIGS. 1 and 2). Further, it is preferable that the accompanying airflow shielding plate 35 also covers the lower surface of the connecting rod 26. Furthermore, it is preferable that the swinging arm 24 or 23 adjacent to the connecting rod 26 is also provided with an entanglement prevention plate 34 extending in the axial direction of the bobbin holders 16, 16'.

Note that the four-bar mechanism of the present invention may be a double-crank mechanism or other mechanisms.

A swing lever 33 is integrally attached to the swing rod 23, and a piston rod 31 of a fluid pressure cylinder 30 is connected to the swing lever 33 by a pin 32. The lower end of the hydraulic cylinder 30 is connected by a pin 29 to a bracket 28 attached to the winder 1. Note that the swing lever 33 is connected to the swing arm 22.
The design may be changed so that it is fixed to other members such as.

During steady winding, the piston rod 31 of the fluid pressure cylinder 30 is extended, and the swing lever 33 is rotated counterclockwise around the swing rod 23, as shown in FIG. Swing arm 24
is rotating counterclockwise around the swing rod 23. At the same time, the swinging arm 22 rotates around the pin 21, and as a result, the connecting rod 26 and the accompanying airflow shielding plate 35 are folded on the side of the full bobbin and the empty bobbin, and can be stored compactly. can.

When the package formed on the bobbin 18 attached to the bobbin holder 16 is fully wound, the turret 17 is rotated and the yarn Y is wound from the bobbin 18 attached to the bobbin holder 16 to the bobbin holder 1.
Switching is made to the bobbin 18' attached to the bobbin 6', and the thread that has been passed from the full bobbin to the empty bobbin is cut off by increasing the thread tension or by being cut by a suitable thread end cutting member to form a thread end E. Bobbin holder 16'
is rotating at high speed, the bobbin holder 16'
An accompanying air current is generated around the If special consideration is not taken, the accompanying airflow will act to draw air near the full bobbin toward the empty bobbin, resulting in
The yarn end E is wound into the bobbin holder 16'.

Therefore, in the present invention, when the switching is completed, the piston rod 31 of the hydraulic cylinder 30 is contracted. As a result, the swing arm 24 rotates clockwise around the swing rod 23 together with the swing lever 33,
The connecting rod 26 and the accompanying airflow shielding plate 35 attached to its tip fully penetrate into the gap between the empty bobbin and the fully loaded bobbin, beyond the line connecting the centers of both bobbins. The accompanying airflow shielding plate 35 prevents the air around the full bobbin from flowing into the empty bobbin side due to the suction effect of the airflow accompanying the empty bobbin holder 16', and also serves as a barrier between the full bobbin and the empty bobbin. is formed to mechanically prevent the yarn end E from protruding toward the empty bobbin. This prevents the yarn end E of the yarn connected to the full bobbin from being wound into the empty bobbin, improving the switching success rate. This effect is particularly
This is noticeable when winding fine denier drawn yarn at high speed. Furthermore, since there is no yarn end entanglement, it is possible to prevent the yarn quality of the package from deteriorating due to yarn end entanglement.

According to the present invention, it is possible to almost completely prevent the thread end of the thread connected to the full bobbin from being caught in the empty bobbin.
Moreover, even when adopted in a multi-spindle switching winder, the amount of compressed air consumed can be sufficiently reduced.

[Brief explanation of drawings]

1 and 2 are front views of an embodiment of the present invention; in FIG. 1, the separator and the four-bar mechanism are in a folded standby position beside a plurality of bobbin holders; In FIG. 2, the separator and four-bar mechanism are in an operative position with the separator and four bar mechanism extended into the gap between the plurality of bobbin holders. 1... Winder, 12... Slide block, 1
6, 16'... Bobbin holder, 17... Turret, 18, 18'... Bobbin, 21... Pin, 2
2... Swinging arm, 23... Swinging rod, 24... Swinging arm, 25... Pin, 32... Pin, 33...
... Swinging lever, 34 ... Entrapment prevention plate, 35 ...
Associated airflow shield.

Claims (1)

[Claims for Utility Model Registration] 1. A rotatable turret, a plurality of bobbin holders fitted with yarn winding bobbins and rotatably protruding from the turret, and a separator insertable between the plurality of bobbin holders. In the switching winding machine, the separator is connected to a link of a four-bar mechanism, and the separator and the four-bar mechanism are in a folded standby position on the side of the plurality of bobbin holders, and in a standby position in which the separator and the four-bar mechanism are extended and arranged in the plurality of bobbin holders. A switching winder characterized in that the operating position is intruded into a gap between bobbin holders. 2. The switching winding machine according to claim 1, wherein the swing link of the four-bar mechanism is connected to a connecting link, and the separator is connected to the connecting link. 3. The switching winder according to claim 2, wherein a roll-in prevention plate extending in the axial direction of the bobbin holder is fixed to a swing link connected to the connecting link.