JPH08198520A - Reeling-off assisting device for winder - Google Patents

Abstract

PURPOSE: To provide a reeling-off assisting device for a winder that can be installed in a small space and is controllable steplessly, smoothly and correctly. CONSTITUTION: A reeling-off assisting device for a winder constituted by provided an elevating guide 20 for a balloon controller 6 for controlling a balloon at the time of reeling the yarn off a yarn feeding bobbin, a driver 25 provided within the length range of the elevating guide 20, and converting mechanism 26, 27 for converting motion in a different direction from the elevating motion of the driver 25, into elevating motion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winder for winding a yarn supplying bobbin produced by a spinning machine or the like into a corn or cheese-like winding package, and a solution for smoothly unwinding the yarn of the yarn supplying bobbin. Auxiliary device.

[0002]

2. Description of the Related Art In an automatic winder or the like, a yarn supplying bobbin produced by a spinning machine is unwound and wound into a corn or cheese-like winding package. When unwinding this yarn supplying bobbin, a balloon is formed by the centrifugal force at the time of unwinding, but while the balloon gives a predetermined tension to the yarn, the yarn tension becomes too large and the yarn breaks as well. ,
In order to make contact with the surrounding equipment, a cylindrical balloon breaker is provided above the yarn supplying bobbin and the upper end of the balloon is regulated to prevent the excessive formation of the balloon.

Since this balloon breaker is fixed to the upper part of the yarn supplying bobbin, as the unwinding point gradually moves below the yarn supplying bobbin as the unwinding of the yarn supplying bobbin progresses, Since the distance from the balloon breaker becomes longer and the balloon becomes larger accordingly, the function as a balloon breaker is not sufficient, and the yarn tension also changes as the balloon changes as the unwinding progresses. Further, when the unwinding point is lowered, the tip of the balloon may come into strong contact with the surrounding area above the bobbin from which the thread has been released, which may adversely affect the surface of the thread.

As a countermeasure against this, the balloon breaker is made into a sufficiently long cylindrical shape, and its opening is lowered as the unwinding point of the yarn from the yarn feeding bobbin is lowered, so that the distance between the unwinding point and the opening is kept substantially constant. It has been proposed to use the balloon controller as described above as an unwinding assisting device. This balloon controller detects the upper end position where the yarn is unwound from the yarn supplying bobbin near the lower end opening with a sensor, controls the air cylinder operating air as the upper end position drops, and controls the air cylinder piston rod. The integrally linked balloon controller is lowered in conjunction with the lowering of the upper end position.

[0005]

In the above balloon controller, since the air cylinder moves vertically, the air cylinder must be erected vertically. However, the piston in the air cylinder is When the balloon controller is in the uppermost position, it is located at the uppermost position in the air cylinder. At this time, the portion where the piston rod projects from the air cylinder supports the balloon controller. The lower end of the piston rod, which is located at the lower part and supports the balloon controller, is at a position lowered by substantially the length of the air cylinder.

Therefore, the operating portion of the air cylinder has a length of the piston rod substantially corresponding to the moving distance of the balloon controller and a length of the air cylinder for retracting the piston rod, that is, twice the moving distance of the balloon controller. Need space. Therefore, a lot of installation space is required for the drive device of the balloon controller, and it is difficult to finely adjust the movement control by the air cylinder, and the function as the balloon controller is not sufficient.

Therefore, an object of the present invention is to provide a winder unwinding assisting device which can be installed in a small space and can be smoothly and accurately controlled steplessly.

[0008]

In order to solve the above problems, the present invention provides a lifting guide of a balloon controller for controlling ballooning when unwinding a yarn of a yarn feeding bobbin, and within a length range of the lifting guide. The unwinding assisting device of the winder is configured by providing the drive device provided in the above and a conversion mechanism for converting a motion of the drive device in a direction different from the vertical movement into a vertical motion.

[0009]

Since the present invention is configured as described above, when the yarn is unwound, the balloon controller is provided above the yarn feeding bobbin to adjust the balloon, and the unwinding position is advanced as the yarn unwinds. When d is lowered, the driving device is driven, and the movement of the driving device is converted into vertical movement by the conversion mechanism, whereby the balloon controller is lowered along the elevating guide, and thereby the balloon is properly adjusted. At this time, since it moves within the range of the elevating guide, no more space is needed.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 2 shows an automatic winder to which the present invention is applied. The automatic winder unit 1 has its position fixed by a support pipe 2 and a duct 3, and a yarn Y drawn from a yarn supplying bobbin 4 positioned at a predetermined position of the unit. Passes through a balloon controller 6, a disc or gate type tenser 7 that applies a predetermined tension, a slab catcher 8 that detects a defective portion of the yarn, and the like, and is wound into a winding package 14 that is rotated by a traverse drum 13. To be The yarn joining device 15 is provided with a suction mouth 16 for drawing the upper yarn on the package side into the yarn joining device 15, and a relay pipe 17 for guiding the lower yarn on the yarn supplying bobbin side to the yarn joining device 15.

The yarn feeding bobbin 4 is a tray 1 which is independent of each other.
It is supplied to the winding position A of the winding unit 1 via the supply conveyor 11 and the rotating disk 19 in the state of being inserted in the winding unit 8. In addition, the empty bobbin 4'after winding is completed is the discharge conveyor 1
2, and a new yarn supplying bobbin 4 is supplied instead. As will be described later, the balloon controller 6 is provided so as to be able to move up and down, and FIG. 1 shows an initial state in which the yarn of the yarn supplying bobbin 4a has begun to be unwound. Balloon controller 6
Is in the uppermost position.

As shown in FIG. 1, the raising / lowering drive mechanism of the balloon controller 6 has a raising / lowering guide 20 standing upright in parallel with the yarn feeding bobbin 4a to be unwound and in parallel with the yarn feeding bobbin 4a. A guide hole 24 of a supporting portion 23 of the elevating member 22 is fitted into the guide rod 21 of 20. A stepping motor 25 is fixed to the elevating member 22, and a pinion 26 driven by the stepping motor 25 is provided.
Are arranged in parallel with the guide rod 21 and mesh with a rack 27 which is fixed to the guide rod 21 at the top and bottom. An arm 28 is fixed to the elevating member 22, and a balloon controller 6 is fixed to the tip of the arm 28.

The stepping motor 25 is driven by the pulse output of the control device 30, and the control device 30 controls the distance sensor 3
2 and the rotation speed detection sensor 13a of the traverse drum 13 respectively input signals. The distance sensor 32 is fixed to the lower end of the sensor support portion 31 protruding from the arm 28, and the unwinding upper end slope (so-called chess portion) 4b of the unwinding bobbin 4a or the chess portion and the wood pipe (winding tube). The light projecting and receiving parts are oriented so as to detect the boundary portion of the. The control device 30 outputs a drive pulse signal to the stepping motor 25 in response to a winding start (including winding restart) signal, and lowers the balloon controller 6 at the uppermost position. The descent speed at this time is relatively high. It should be noted that when the stepping motor 25 is driven, the pinion 26 rotates, and the lifting member 22 descends due to meshing with the rack 27, whereby the balloon controller 6 descends.

As the balloon controller 6 descends, the distance sensor 32 also descends, causing the distance sensor 32 to move to the chess portion 4b.
When the distance is detected, the distance sensor 32 outputs a position detection signal to the control device 30. The control device 30 is a distance sensor 32.
Stepping motor 2 receives the position detection signal from
5, the rotation speed detection sensor 13a of the traverse drum 13 is driven.
It switches so that it may be performed according to the signal from. The rotation speed detection sensor 13a detects the rotation speed of the traverse drum 13 to detect the yarn unwinding amount of the yarn supplying bobbin 4a, and the control device 30 controls the rotation speed detection sensor 13a of the traverse drum 13. Depending on the signal from the stepping motor 25
A drive pulse signal is output to and the balloon controller 6 is gradually lowered.

Next, the yarn supplying bobbin 4a is newly added to the winding position A.
The operation after being supplied to will be described. When the yarn supplying bobbin 4a is newly supplied to the winding position A, the traverse drum 13 starts driving, then the stepping motor 25 starts driving, and the balloon controller 6 is lowered at high speed.
When the balloon controller 6 descends and the distance sensor 32 detects the chess portion 4b, the stepping motor 2
5 is driven according to a signal from the rotation speed detection sensor 13a of the traverse drum 13. That is, after the distance sensor 32 detects the chess portion 4b, the balloon controller 6 is gradually lowered according to the yarn unwinding amount of the yarn supplying bobbin 4a. In this way, the balloon controller 6 can smoothly and accurately descend as the unwinding of the yarn supplying bobbin 4a progresses, and an appropriate balloon can always be formed. When all the yarns of the yarn supplying bobbin are unwound, the automatic winder detects this, and the control device 30 reverses the pulse motor 25 at high speed to raise the balloon controller to a predetermined uppermost position. Then, the empty bobbin is discharged, the full bobbin is supplied, and the above operation is repeated.

As described above, at the start of winding, if the balloon controller 6 is lowered while detecting the position where the yarn of the yarn supplying bobbin 4a is wound, a normal bobbin, a half ball, and a deformed ball can be obtained. Regardless of the above, the balloon controller 6 can always be rapidly lowered to the proper position. Further, if the balloon controller 6 is lowered according to the unwinding amount of the yarn feeding bobbin 4b, the balloon controller can be lowered smoothly.

In the above embodiment, as the motor 25,
Although a stepping motor is used, various motors such as a normal DC motor can be used, and various types such as a worm gear and a worm that are driven by various driving devices instead of using a rack and a pinion as a conversion mechanism. The above conversion mechanism can be used, and various drive devices and conversion mechanisms can be combined as long as they can be installed within the moving length of the balloon controller.

[0018]

EFFECT OF THE INVENTION Since the present invention is constructed and operates as described above, it does not require a large installation space unlike the conventional drive mechanism using an air cylinder, and the position of the balloon controller can be smoothly and accurately changed steplessly. Can be controlled. Further, according to the drive mechanism including the rack and the pinion, it is possible to operate the drive mechanism without any problem even if a small amount of dust is caught in the drive mechanism.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a side view showing the overall configuration of an automatic winder to which the present invention is applied.

[Explanation of symbols]

 1 Automatic winder 2 Bearing pipe 3 Duct 4 Thread feeding bobbin 6 Balloon controller 7 Tensor 8 Slab catcher 13 Traversing drum 14 Winding package 15 Yarn splicing device 16 Suction mouse 17 Relay pipe 18 Tray 19 Rotating disk 20 Lift guide 21 Guide rod 22 Elevating member 23 Supporting member 24 Guide hole 25 Stepping motor 26 Pinion 27 Rack 28 Arm 30 Controller 31 Sensor support 32 Distance sensor

Claims (4)

[Claims] 1. An elevating guide of a balloon controller for controlling ballooning when unwinding a yarn of a yarn supplying bobbin,
An unwinding assisting device for a winder, comprising: a drive device provided within a length range of the elevating guide; and a conversion mechanism for converting a motion of the drive device in a direction different from the elevating motion into an elevating motion. 2. The unwinding assisting device for the winder according to claim 1, wherein the drive device comprises a rack and pinion mechanism and a motor that operates integrally with the balloon controller. 3. The unwinding assisting device for a winder according to claim 2, wherein the motor is a stepping motor. 4. The unwinding assist device for a winder according to claim 1, further comprising control means for controlling the position of the balloon controller according to the amount of unwinding of the yarn supplying bobbin.