JPS5841920A - Yarn breakage sensing apparatus and sensing method - Google Patents

Abstract

PURPOSE:To make it possible to sense the yarn breakage in the respective spindles of a spinning frame at a low cost without requiring the patrolling of a yarn breakage sensing apparatus between the respective spindles, by means of a light projecting optical fiber having one end opposite to a running yarn in each spindle of the spinning frame and the other end led to the end of the machine frame. CONSTITUTION:One end 9 of each optical fiber 8 is placed opposite to a yarn 6 between a drafting apparatus 2 and a snail wire 3 of a spining frame, and each optical fiber 8 is fixed on a machine frame 10. The other end thereof 11 is led to the end of the machine frame 10. The optical fibers 8 are fixed in the respective spindles, and the other ends 11 are trued up. Light is then projected from a light source 12 on the trued ends 11, and receptors 13 are provided in the respective spindles and connected to a data logger 14 at the end of the machine frame 10 with an electric wire, or light receiving optical fibers 15 are provided in the respective spindles. One end 16 of each optical fiber 15 is placed opposite to the yarn 6, and the other end is led to a receptor 17 to receive the light.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus and method for detecting the presence or absence of yarn breakage in spinning machines, etc. that fail to produce 1jQFi spinning.

As a conventional method for detecting yarn breakage, a traveling body having a light emitter and a light receiver is movably provided on the machine base, and the light beam is emitted onto the thread by the light receiver, and the E light distribution is reflected by the light receiver. Methods have been implemented to detect changes in passage.

The conventional method described above has the advantage of requiring only a small number of emitters and receivers, but it requires a certain amount of time for the traveling body to move from one end of the machine base to the other, and even if the thread breaks during that time, it is There is a drawback that it does not detect yarn breakage.If the euma is activated or the notification light is turned on at the same time as thread breakage occurs, the energy saving effect will be large and the investment efficiency of the thread breakage detection device will also be high, but with the one-travel type, it takes a long time to detect the thread breakage. Since the period is long, such an effect cannot be expected.

In order to overcome the drawbacks of the prior art, the present invention has invented a device and method that emits and receives light for each line and detects yarn breakage. 1 Figure 1 shows the thread breakage detection device of the present invention used in the spinning iso.
! I! It is a perspective view showing an example.

In the figure, Shino 1 is drafted by draft equipment @ 2, passes through Snell wire 3t, and traveler 5 rotates ring 4.
The yarn is heated to form a thread 6, which is wound onto a bobbin 7.

Between the draft device 2 and the Snell wire 3, one end 9 of the optical fiber 8 is connected to the frame 1 of the spinning machine so that light can be projected onto the weft 6.
Fix Hikari 7 Eyepa 8 to 〇7.

Light 7 Aibar 8 is provided in the same way for each weight, and 70 other sakes 1
A floodlight 12 made of an incandescent lamp, a mercury lamp, a xenon lamp, a laser emitting device, etc. is provided opposite the lamp.

On the other hand, a light receiver 13 such as a light receiving element such as a phototransistor or photodiode that receives reflected light from the thread or light that passes through the thread is provided for each wire near the thread.The light receiver 13 of each weight is connected with an electric wire. Thread breakage is displayed from the end of the machine when connecting and tying! I! The yarn breakage sensing device is connected to a data logger 14 having a direct access, calculation device, control device, etc.

Next, a yarn breakage sensing method using the J:#i2 device will be described.

First, from the projector 12, the end surface 11 of the projecting light 7 eyeper 8
The light passes through the optical fiber and reaches one end of the optical fiber 7.
Light is projected onto the twine 6, and the reflected light is received by the light receiver 13 and changed into current or voltage depending on the presence or absence of light and its strength.・In the case of projecting light or receiving light from a thread, a lens or mirror may be used to collect the light.Also, in order to detect the light reflected from one thread, the light is passed through the thread. Detection may be performed based on changes in the amount of light, and pulsed light may be used instead of continuous light.

Embodiment FIG. 2 is a perspective view of a main part of another embodiment of the thread breakage sensing device of the present invention.

The light is projected onto the -@9 strand 6 of the projection light 7 eyeper 8, and the reflected light is received by the -n/A16 of the scanning light 7 eyer 15, and the subsequent light passes through the optical fiber 15. The light is received by a light receiver 17, which is a light receiving element such as a phototransistor or a photodiode, at the end of the spinning machine, thereby forming the yarn breakage sensing device of the present invention.

In this embodiment, the light receivers can be concentrated in one place on the spinning machine, which is convenient for maintenance.

Embodiment 5 FIG. 5 shows a perspective view of an optical fiber bundle according to another embodiment of the present invention. They are arranged in a circle according to the order of the positions of the mfflsllt-M of the projecting lights 7 and eyeglasses 8, and the center of this circle is A light projector 19t is attached to the tip of the arm 18 which can be extended nine times to form an uninvented thread breakage sensing device.

Light projection @19 rotates sequentially, sequentially irradiates the optical fiber/(C) end, emits light to the thread from the other end of the light 7 eye I, and sequentially illuminates the whole,
- Scan. If you match it with the scanning order of Data Kiga's 1e bolting device and i control device, it will be able to detect the brocade that breaks the thread,
To that extent, it is possible to distinguish, record, and control.In the case of non-example, the projector can produce 1 light of 7 ino (min.), resulting in more energy savings.

In addition, if you measure and record the state of thread breakage at any given time by irradiating the optical fiber at each spindle of a spinning machine at the same time, it will be detected by the presence or absence of thread breakage, which increases the scanning speed by ft. It is also possible to detect the presence or absence of a thread breakage by irradiating a ring on the area 5 where the thread is directly irradiated to show the presence or absence of a traveler that stops due to thread breakage.

Since the sensing device of the present invention can irradiate all the weights one by one using an optical fiber, there is no need for a running body for projecting or receiving light, and thread breakage for each weight is not required. Conditions can be sensed simultaneously and in a short period of time. In addition, since it is possible to centrally manage the weights of each block and detect thread breakage, the invention has excellent effects such as easy maintenance, energy saving, and labor saving.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the thread breakage sensing device of the present invention, and FIGS. 2 and 3 are perspective views of essential parts showing other embodiments of the present invention. 1...Shino 2...Draft device 3...Snell wire 4...Ring 5...Try 2 6...Thread 7...Bobbin 8...Optical fiber for light projection 9... One end 10...Machine 11...Other end 12...Emitter 15...Receiver 14...Data logger 15...Optical fiber for light reception 16...-Receiver 17...Receiver 18... Arm 19... Floodlight 20... Pneumatic inlet Patent applicant Hiroshi Kanai Agent Kiyoshi Hayashi No. 70/1945 71 Commissioner of the Japan Patent Office Shima 1) Haruki Tono 1 , Indication of the case f Temple Gansho 11-/Jf',, '7θ 2, Name of the invention 4b・j Dispute Q Gen 3, Person making the amendment Relationship with the case Patent applicant 1' Hyogo Prefecture 21-6 Higashiyamacho, Ashiya City Name Answer i+
Senior Shiba 4, Agent Showa Month, Day 6, Number of inventions increased due to amendment Claims (υ 7 for a projecting light in which one end is provided near the thread or the wire and the other end is provided at the end of the machine base) The spinning machine can be installed on the machine stand for each % spindle in the eyeper, and a light emitter is provided opposite to the other layer of the above-mentioned optical 7 eyeper, and a light receiver is provided for each line, or the spinning machine is configured to pass through an optical fiber and receive the light all at once. The thread breakage detection device is characterized by having a light receiver installed on the shoulder.Light is emitted from the t2J projector to one end of the light projecting optical fiber provided at the end of the machine, and the light that passes through the optical fiber 7 is Thread breakage detection method involves projecting light onto the thread or thread from the other end, receiving the reflected light or passing light for each spindle, and then receiving the light with a light receiver to detect thread breakage. (3) ) The reflected light or the transmitted light is received from one end of the optical fiber 7, the received light is passed through the optical fiber, and at the other end, a light receiving element such as a phototransistor or photodiode is installed at the end of the machine. The thread breakage detection method according to claim 2, characterized in that the light is emitted to the end face of the 7-eyeper, or when the light is received by the light receiver for each weight, The yarn breakage sensing method according to claim 2, characterized in that yarn breakage of all spindles is detected by sequentially emitting or receiving light for each spindle.

Claims (1)

[Scope of Claims] Portion: One end of the light emitting optical fiber is provided near the string or wire and the other is provided at the end of the AT machine base, and each type of light emitting optical fiber is provided on the machine base, and the other end of the light distribution 7 eyeper is provided at the other end of the AT machine base. In addition to providing emitters facing each other, a receiver may be provided for each weight, or a certain Vhμ optical fiber t-
A yarn breakage sensing device characterized in that a light receiver is installed at the end of a spinning machine so that the light passes through and is received all at once. (It's a light projector) Light is emitted to one end of the light emitting fiber installed at the end of the machine, and the light that passes through the fiber is emitted to the other end of the fiber, and the reflected light passes through. A thread breakage detection method characterized by detecting thread breakage by receiving light with a light receiver provided for each spindle. (3) Receive reflected light percentage or transmitted light from one end of an optical fiber, pass the received light through the optical fiber, and at the other end, install a phototransistor, photodiode, etc. in the heat of the machine. The yarn breakage sensing method according to claim 2, characterized in that the %iFF element is illuminated with light. (4) When projecting light to the light 7 eye pattern plane, or q! When the receiver receives light every rm, q! The thread breakage sensing method according to claim 2, characterized in that thread breakage of all spindles is detected by emitting or receiving sequentially intermittent light for each r spindle.