JPH05767A - Method and device for winding wire - Google Patents

Abstract

(57) [Summary] [Purpose] A filamentous body capable of winding a constant tension by absorbing both long-period and short-term tension fluctuations that occur in the filamentous body during winding of the filamentous body. A winding method and device are provided. [Structure] A dancer pulley device 3 including a fixed pulley 31 and a movable pulley 32, and a fine fluctuation absorbing device 4 in which a guide pulley 45 is rotatably provided at the other end of a leaf spring 41 fixed at one end are provided. If the filamentous body 1 is taken up by the winding bobbin 2 in order, the tension fluctuation of a relatively long cycle is absorbed by the dancer pulley device 3 and the tension of a relatively short cycle which cannot be absorbed by the dancer pulley device 3. Fluctuations can be absorbed by the slight fluctuation absorbing device 4, so that the constant tension winding operation can be reliably performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and device for winding a filament.

[0002]

2. Description of the Related Art Considering the process of feeding various filaments and winding them on a winding bobbin, the winding tension of the filaments constantly changes due to some cause on the feeding side or the winding side. Is normal. In order to absorb such fluctuations in tension and wind with a constant tension as much as possible, it has been widely practiced to provide a dancer pulley device between the feeding side and the winding side.

[0003]

When the filament is aligned and wound on the winding bobbin, the reason why the filament rides on the previous winding layer or conversely falls from one layer For some or other accidental reasons, minute, very short period, oscillatory tension fluctuations often occur. Moreover, such tension fluctuations frequently occur when the filament is a rectangular wire, which is one of the factors that hinder the constant tension winding on the winding bobbin. The dancer pulley device disposed between the sending side and the winding side is generally capable of absorbing tension fluctuations that continue for a relatively long time period, but in short cycle, specifically Has a drawback that it cannot cope with short cycle fluctuations of approximately 5 Hz or less.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a linear member is provided with a fixed pulley and a movable pulley which is movable in a direction of approaching or separating from the fixed pulley. After passing through the dancer pulley device, it is supported at the other end of a leaf spring fixed at one end so as to be rotatable about its own axis, and its plane of rotation includes a direction line in which the leaf spring extends. The method for winding a filamentous body includes the steps of: guiding by being wound on a guide pulley provided on the coil, and then winding up on a winding bobbin.

Further, according to the present invention, there is provided a dancer pulley device comprising a fixed pulley and a movable pulley which is movable in a direction toward or away from the fixed pulley, a spring mounting block capable of rotating and adjusting about its own axis, and one end of which is described above. A leaf spring fixed to the outer peripheral portion of the spring mounting block, and provided at the other end of the leaf spring so as to be rotatable about its own axis, and its rotation surface includes the direction line in which the leaf spring extends. And a fine fluctuation absorbing device having a guide pulley,
It is a winding device of a linear body configured such that the linear body is wound around a winding bobbin through the dancer pulley device and the fine fluctuation absorbing device in this order.

[0006]

[Function] The tensioner fluctuation of a relatively long cycle generated during the winding process of the filament is absorbed by the dancer pulley device, and the tension fluctuation of a relatively short cycle which cannot be absorbed by the dancer pulley device is absorbed by the fine fluctuation absorber. Thus, it is possible to carry out the work of winding the filament at a constant tension.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an apparatus for carrying out the method of the present invention will be described with reference to FIG. Reference numeral 1 denotes a linear body having various cross sections such as a circular shape and a rectangular shape, and the linear body 1 includes a dancer pulley device 3 including a fixed pulley 31 and a movable pulley 32 movable in a direction toward or away from the fixed pulley 31. It goes through the winding bobbin 2 via the winding bobbin 2 and is guided by being wound around the outer peripheral groove of the guide pulley 45 of the fine fluctuation absorbing device 4 which is a characteristic device of the present invention.

The fine fluctuation absorbing device 4 is simply a guide pulley 45 rotatably provided at the other end of a relatively weak leaf spring 41 having one end fixed. Actually, one end of a relatively weak leaf spring 41 is fixed to the outer peripheral portion of a spring mounting block 42 rotatably provided on the base by a mounting screw 43, and a pillow bracket 46 is attached to the other end. A very lightweight guide pulley 41 is rotatably provided on the bracket 46. Importantly, the planes of rotation of the spring mounting block 42 and the guide pulley 45 are contained in the same plane, and this plane is also the plane spring 4.
1 extending direction line. Reference numeral 44 is a fixing screw for fixing the rotation of the spring mounting block 42 with respect to the base.

The damper device 5 is attached at an appropriate position in the middle of the leaf spring 41. The damper device 5 may be, for example, an appropriately selected air cylinder having a very small size and a low sliding resistance, and has a function of preventing the leaf spring 41 from resonating and rapidly stopping the vibration. is there.

Next, the operation of the device of the present invention will be described. The dancer pulley device 3 absorbs a tension fluctuation of a relatively long cycle caused by the linear body 1 for some reason, as in the conventional case. Now, it is assumed that the filamentous body 1 exhibits tension fluctuation for a moment, that is, the tension increases for an extremely short time, for example, and the tension returns to the original tension again. At this time, the guide pulley 45 of the slight fluctuation absorbing device 4 is pushed down to absorb the increase in the tension of the filament 1 in an instant. Similarly, when the tension is reduced, the guide pulley 45 moves in the direction in which the linear body 1 is stretched by the spring force of the leaf spring 41 to absorb the momentary tension reduction. In this way, the influence of such tension fluctuation does not extend to the winding bobbin 2, and the winding bobbin 2 always continues the winding operation with a constant tension.

The mounting angle of the leaf spring 41 of the slight fluctuation absorbing device 4 is related to the tension adjusting ability. That is, as can be seen from FIG. 2, assuming that the traveling path of the linear member 1 changes by the angle θ after the passage of the guide pulley 45, the magnitude of the tension change of the linear member is set to ΔT, and this changes in the leaf spring 41. Since the exerted force is represented by 2ΔTsin θ / 2, the larger the angle θ is, the greater the influence of the leaf spring 41 on the tension fluctuation of the linear body 1. Therefore, the spring constant of the leaf spring 41 and the linear body 1
By changing the angle of the leaf spring 41 by rotating the spring mounting block 42 in consideration of the magnitude of the tension fluctuation that occurs in 1), a minute fluctuation in tension fluctuation of a short cycle which is likely to occur in the winding operation to be applied at all times. The absorber 4 can be adjusted to work most effectively.

[0012]

According to the present invention, the long-period tension fluctuation caused by any cause during the winding operation of the filament can be absorbed by the dancer pulley device, and likewise, depending on the dancer pulley device caused by some cause. Short-cycle tension fluctuations that cannot be absorbed can be efficiently absorbed by the fine fluctuation absorbing device, so the work of winding the filaments at a constant tension is always guaranteed, and the filaments are aligned and wound onto the bobbin. There are advantages.

[Brief description of drawings]

FIG. 1 is a simplified side view showing a partial cross-sectional view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a side view for explaining the meaning of angle adjustment of the leaf spring of the slight fluctuation absorbing device.

[Explanation of symbols]

1 Striatum 2 winding bobbin 3 Dancer pulley device 31 fixed pulley 32 Movable pulley 4 Fine fluctuation absorber 41 leaf spring 42 Spring mounting block 45 Guide pulley

Claims (2)

[Claims] 1. A linear pulley (1) is attached to a fixed pulley (31).
After passing through a dancer pulley device (3) consisting of a movable pulley (32) that is movable in the direction toward or away from it, the axis of its own is attached to the other end of the leaf spring (41) fixed at one end. Is guided by being wound around a guide pulley (45) which is supported so as to be rotatable around and has its rotation surface including the direction line in which the leaf spring (41) extends, and then wound around a winding bobbin (2). A method of winding a filamentous body including a step of winding. 2. A dancer pulley device (3) comprising a fixed pulley (31) and a movable pulley (32) which is movable in a direction toward or away from the fixed pulley (3), and a spring which can be rotated about its own axis. A mounting block (42), a leaf spring (41) having one end fixed to the outer periphery of the spring mounting block (42), and the other end of the leaf spring (41) rotatably about its own axis, and A minute fluctuation absorbing device (4) having a guide pulley (45) whose rotation surface includes a direction line in which the leaf spring (41) extends, and the linear body (1) has the dancer. A filament winding device configured to be wound around a winding bobbin (2) via a pulley device (3) and a fine fluctuation absorbing device (4) in this order.