JPH03216464A - Divided-winding detecting device - Google Patents

Abstract

PURPOSE:To prevent a condition of divided winding by providing a yarn detecting feeler before in the vicinity of an end part of a rewinding package, which doubles two yarns to be rewound, and deciding the divided winding when a plurality of signals are generated, while the yarn performs two traverses, by the yarn detecting feeler. CONSTITUTION:A single pulse signal is generated in each one turn of a pulley 3 by a feeler F1 and in each traverse of a yarn by a feeler F2 respectively, while each diameter of a pulley 3 of a motor M and a pulley 2 of a traverse drum 1 is set to a relation such that the yarn performs two traverses (one reciprocation) when the pulley 3 makes one turn. Then a single signal is generated by the feeler F2 while the feeler F1 makes one turn, when the two yarns are normally wound overlapping, and two or more signals are generated because the respective two yarns traverse the feeler F2 with an interval when divided winding is generated. Here the divided winding is decided so that an alarm is generated while stopping a rewinding device.

Description

[Detailed description of the invention] a. Purpose of the Invention [Field of Industrial Application] This invention is directed to a winder that combines two threads and winds them, or a spinning machine that winds two threads. The present invention relates to a device for detecting a defective state that separates and runs.

[Conventional technology]

Conventionally, winders that combine two threads and wind them into a winding package, and spinning machines that wind double threads are known.
To perform splicing using these devices, the yarns unwound from the package are separated into individual yarns, fed into the splicing device in the form of single yarns, and spliced separately.

[Problem to be solved by the invention]

In conventional devices that wind these two yarns in accordance with the winding package, for some reason the two yarns are wound with a gap between them during winding or immediately after splicing, which is called split winding. A phenomenon known as this may occur. This causes problems such as thread breakage.

This invention detects a defective state in which two yarns separate and run during yarn winding or immediately after yarn splicing in a winder that combines two yarns and winds them, or in a spinning machine that performs double yarn winding. The aim is to provide equipment and prevent such conditions from occurring. Structure of the Invention [Means for Solving the Problems] In order to achieve the above object, the split winding detection device of the present invention provides a winding package P near the end of which two threads are combined and wound. A yarn detecting feeler F2 is provided, and when the yarn detecting feeler F2 emits a plurality of signals during two traverses of the yarn, it is determined that there is a split winding, and the winding device is stopped and an alarm is issued.

[For production]

In the split winding detection device configured as above,
When the yarn detecting feeler F2 emits multiple signals during two traversals of the yarn during yarn winding or immediately after yarn splicing in a winder that combines two yarns and winds them, or a spinning machine that performs double yarn winding. , it is determined that split winding has occurred, the winding device stops, and an alarm is issued. When the yarn is wound normally, only one signal is emitted from the yarn detection feeler F2 during two traverses of the yarn.
There is no alarm or other function.

〔Example〕

In a winder that combines two yarns and winds them, or in a winding device in a spinning machine that takes up two yarns, a slab catcher detects yarn breakage or yarn defects and automatically cuts the running yarn. Then, a suction pipe (not shown) sucks the yarn end on the yarn feeding side, while the yarn end wound around the package P is unwound and sucked by the suction mouth 6 as shown in FIG. Then, the yarn is introduced into a yarn splicing device 5 (not shown). There, each yarn end is spliced separately.

If the cutting position of the running yarn is shifted at this time, the windings after splicing will be cross-wound separately and will not be wound together, so that the two yarns will be wound separately. Note that even during normal winding, the condition of the thread when split winding occurs is the same.

Figure 1 is a diagram showing the state during yarn splicing, but even after yarn splicing, the positional relationship between the two yarns that are being separated and wound and the separation winding detection feeler does not change, so based on this figure, The split winding detection device will now be explained.

The winding package P is in contact with a traversing drum 1 for traversing the yarn, and is driven by its rotation. A booley 2 is fixed to the traversing drum l, and a belt 4 is stretched between it and the booley 3 of the motor M.

A feeler F1 is provided near the pulley 3 of the motor M to detect its rotation, and a thread detection feeler F2 is provided near the end of the traversing drum 1 in front. As shown in FIG. 2, the feeler F outputs one pulse signal each time the pulley 3 rotates once, and the feeler F2 outputs one pulse signal each time the thread crosses.

The diameters of the pulley 3 of the motor M and the pulley 2 of the traversing drum l are set in a length relationship such that the thread makes two traverses (l reciprocations) when the pulley 3 makes one revolution.

If this is done, the thread will be 2
During the traverse, when the two yarns overlap and are wound normally, the yarn detection feeler F2 emits one signal as shown by the solid line in FIG. 2 during that time. Also,
When split winding occurs, each of the two yarns crosses the yarn detection feeler F2 with a gap between them, so two or more signals including the signal shown by the dotted line are emitted.

Therefore, when the feeler F1 emits a plurality of signals while emitting two signals, it is determined that there is a split winding. When it is determined that the winding is split, the winding device is stopped and an alarm is sounded.

C. Effects of the Invention Since the present invention is configured as explained above,
This produces the effects described below.

In other words, in a winder that combines and winds two yarns or a spinning machine that takes up two yarns, if two yarns separate and run during yarn winding or immediately after yarn splicing, it is the yarn. Since the detection feeler immediately detects the winding, the winding device stops, and an alarm is issued, it is possible to prevent problems caused by split winding, and to take appropriate and prompt measures to ensure normal winding. can.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the split winding detection device, and FIG. 2 is a diagram showing the relationship between signals emitted by two feelers. l --- Traverse drum, 2, 3 --- Booley, F pulley 3 rotation detection feeler, F2 thread detection feeler,
M - Motor, P - Winding package

Claims (1)

[Claims] A yarn detection feeler F_2 is provided near the end of the winding package P, in which one or two yarns are combined and wound. A split winding detection device that determines split winding when winding occurs and stops the winding device and issues an alarm.