JPS627645Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a winder for shaping the yarn supplied to a twisting machine, a so-called pirn winder.

FIG. 1 shows a conventional pirn winder, in which yarns Y1 and Y2 pulled out from yarn feeding bobbins 1 and 2 pass through tension devices 3 and 4 and deflection rollers 5 and 6, and then are placed on a lifting rod 7 extending in the longitudinal direction of the machine. While being traversed up and down by a fixed traverse guide 8, it is wound up as a pirn P onto a bobbin B supported on a spindle 9.

Such a pirn winder is used to wind a multifilament yarn that has been bulked by a false twister or the like into a pirn shape that can be applied to the twister. Twisted yarn can be classified into soft twist and strong twist depending on the number of twists per unit length.In the case of strong twist, it takes longer to twist the yarn than in the case of soft twist, so the yarn is divided from small pirns into small amounts each time. A system is used to prevent waiting in the next process by twisting the yarn and supplying it to the next process in small increments.

The present invention focuses on the above-mentioned circumstances, and allows short bobbins to be attached to the spindle of a pirn winder in two stages, thereby making it possible to efficiently produce small pirns when the twisting process involves strong twisting. It has been devised in a similar way.

Furthermore, the present invention has the advantage that even if the bobbin is installed in two stages as described above, the bobbin is securely held at key points, and vibrations that are inconvenient to winding are not caused even by high-speed rotation of the spindle. First, it is an object of the present invention to provide a pern winder in which bobbin loading and unloading operations are easy.

Hereinafter, embodiments of the present invention will be described based on the drawings.

In FIG. 2, reference numeral 9 denotes an upright spindle that is rotationally driven by a device not shown. The holders 12 and 13 are provided in upper and lower stages at appropriate intervals according to the present invention, and the bobbin guide 14 is located between the bobbin holders 12 and 13 according to the present invention. be placed in an appropriate position according to The outer diameters of the bobbin holders 12 and 13 and the bobbin guide 14 are set approximately equal to the inner diameters of the bobbins B-1 and B-2, and the outer peripheries of the bobbin holders 12 and 13 are provided with springs (not shown) that protrude outward. A plurality of balls 15 are embedded in the bobbin B-
1 and B-2 on the core shaft 11, the balls 15 are inserted into the holders 12 and 13, and the bobbin B
-1 and B-2 can be inserted smoothly and easily, and after installation, the balls 15 are pushed outward by the spring force within the inner diameter of the bobbin, and the bobbins B-1 and B-2 after installation are It is designed not to move around easily. The two bobbins B-1 and B-2 are sequentially attached to the core shaft 11 and stacked one on top of the other in two stages, abutting each other, and at this time, the bobbin holder 12 and the lower half of the bobbin guide 14 Lower bobbin B-
1 is held from the inside, and the upper bobbin B-2 is held from the inside by the bobbin holder 13 and the upper half of the bobbin guide 14. In other words, the bobbin guide 14 has two bobbins B.
It is provided at the superposition position of -1 and B-2.

Reference numerals 8-1 and 8-2 are traverse guides, which are integrally fixed to a support rod 10 that extends upright in parallel with the core shaft 11 from a lifting rod 7 that is driven up and down by a device not shown. Bobbin B-1, B-2
As the lifting rod 7 moves up and down, the thread is moved to each bobbin B-1 and B-1.
traverse simultaneously within the range of -2.

If the bobbin is long, place one bobbin on the core axis 1.
1 and held by both bobbin holding cylinders 12 and 13. In this case, the lifting rod 7 will move up and down more than in the case of two bobbins as described above, and the traverse area will be expanded. .

According to the present pirn winder, when the thread is to be twisted strongly, relatively small bobbins are stacked in two stages, and when the thread is to be twisted lightly, only one large bobbin is used as in the conventional method. In particular, in the case of the two-stage stacking described above, winding is approximately twice as fast as in the case of one bobbin, and the yarn can be fed to the twisting machine (double twisting machine) in small steps and quickly. Also, bobbin B-1, B
Since the core shaft 11 that supports the spindle 9 is vertically provided, the core shaft is less deflected by gravity as the yarn layer of the pirn increases, and the rotation of the spindle 9 is less than when the core shaft is installed horizontally. Sometimes the upper bobbin B
-2, each bobbin B-1,
A yarn layer having a desired shape can be reliably formed on B-2.

As explained above, according to the present invention, first of all, the yarn is wound in two stages, upper and lower, making it possible to double the production amount of pirn compared to the conventional method, which is convenient for quickly producing large numbers of small pirn. be.

Second, even if two bobbins are inserted into the spindle, each holder 12, 13 and bobbin guide 1
4 is provided at a suitable position according to the present invention, and balls 15 which are urged outward are embedded in the outer periphery of the holders 12 and 13, so that the spindle 9 is upright and the bobbin swings in the direction Coupled with the fact that there is no influence of gravity on the spindle, the vibration of the bobbin when the spindle rotates is extremely small, and the pirn can be formed in the desired shape.

Thirdly, despite the fact that key parts of the bobbin are reliably held on the spindle after insertion as in the second advantage, when the bobbin is inserted or removed, the ball 15 does not fit into the holder 12 or 13, the operation can be performed extremely smoothly and easily.

Fourth, since the bobbin is supported vertically, it is easy to balance the bobbin during rotation, and it is possible to prevent minute vibrations and reliably form the desired pirn shape.

Fifth, in this invention, since the bobbin is held by a bobbin holder provided on the core shaft, the core shaft can be made to have a much smaller diameter than the bobbin inner diameter, and therefore the rotating part Since the weight is reduced and the rotational load can be reduced, power consumption can be suppressed.

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing a conventional device, and FIG. 2 is a partially vertical side view of a puirn winder according to the present invention. 8-1, 8-2...Traverse guide, 9...
Spindle, 11... core shaft, 12, 13... bobbin holder, 14... bobbin guide, 15... ball, B-1, B-2... bobbin.

Claims (1)

[Scope of utility model registration request] A cylindrical bobbin holder with a diameter slightly smaller than the bobbin inner diameter that holds the bobbin from the inside is installed in upper and lower stages on the core shaft of the spindle, which is formed to have a smaller diameter than the bobbin inner diameter and stands upright. A cylindrical bobbin guide having a diameter slightly smaller than the inner diameter of the bobbin is also provided on the shaft, and the positions of the bobbin holders are set at the respective bobbin height positions when the upper and lower bobbins are mounted on the spindle. In addition, the bobbin guide position is set at a position where the upper and lower bobbins overlap, and furthermore, a plurality of balls protruding outward and biased are embedded in the outer periphery of each bobbin holder, Each bobbin is held by the outward tension of the balls of the bobbin holder and the bobbin guide, and two upper and lower traverse guides are arranged opposite to the height position of each bobbin in the held state. A parn winder featuring: