JPS58163769A - Beam warp sizing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a beam warp sizing machine, and more particularly to an improvement of a device for detecting thread breakage that occurs during a drying process.

FIG. 11 is a front view schematically showing the beam light gluing machine.

In FIG. 1, the outline of the structure will be explained according to the flow of processing. First, a desired number of beam creels 1 supply threads 2 that are parallel to each other. These parallel threads 2 are stacked on top of each other to form a sheet, and as a whole -1
Sent to 3.

Gluing is performed in this glue 3. Above the glue box 3 is an exhaust duct 4, which is configured to immediately remove the steam generated from the glue simmered in the box 3. The sized thread 2 is then introduced into dryer-5. As this dryer 5, in addition to one using heated rollers 6 as shown in the figure, there are other types of dryer 5 that use hot air. The threads 2 leaving the dryer 5 are stuck together, so that in order to feed them to the loom, the threads must be split one by one. For this reason, in the darkness from the dryer 5 to the warp beam 7, a furrow splitting device 8 for thread handling, that is, furrow warping, is arranged.

In such a beam light sizing machine, the conveyance speed of the yarn 2 is as high as 120 yards/min. The thread that has been picked up by the warp beam 7 is normally hung on the loom as it is, so the condition of the thread wound around the warp beam 7 influences the quality of the cloth woven by the loom. . Therefore, thread breakage must be strictly prevented in beam light sizing. Conventionally, there were devices in looms that detected thread breakage and automatically stopped the loom, but with beam warp sizing machines that operate at such high speeds, such a stop is not possible. It was said that it was impossible to control. Particularly, thread breakage is a serious problem when the thread is broken when the thread passes through the ridge splitting device 8 after the dryer 5. This is because, when a thread passing through the ridge splitting device 8 breaks, most of the threads are not just one, but a large number of threads are cut at the same time.

SUMMARY OF THE INVENTION Therefore, the main object of the present invention is to provide a beam warp sizing machine having a configuration that allows advantageously detecting thread breakage in the part of the splitter which is problematic as described above.

In summary, this invention uses an optical means consisting of a laser beam and a light receiving sensor to detect yarn breakage, and directs the optical path of both of them downstream of a dividing rond attached to the slot splitting device. It is placed on the side and across the entrance of the thread. The laser beam emitted from the laser light source has excellent directionality, can pass through even a small opening on the downstream side of the dividing iron without any obstruction, and can quickly deal with yarn breakage. Also worth noting is the discovery that in addition to being effective in detecting yarn breakage, the laser beam also has the effect of suppressing static electricity generated when splitting the ribs.

Other objects and features of the present invention will become more apparent from the detailed description given below with reference to the drawings.

FIG. 2 is a schematic front view showing a portion of the ridge splitting device which is a feature of the present invention, and FIG. 3 is a plan view as well.

The ridge dividing device 8 is provided with a plurality of dividing rods 9a to 9d extending across the direction in which the thread 2 flows and distributed in the direction in which the thread 2 flows. For example, when dividing yarns that have been glued to each other so that they appear to be layered into eight layers, first -
It is divided into halves by the first dividing rod 9a. and,
Each of the halved layers is divided by one layer using the following dividing rods 9b to 9d. If such a layer is divided, the adhesion of the parallel threads 2- will be released at the same time. The yarn 2 that has been separated by the splitting device 8 is arranged to have a desired width distribution by, for example, a reed 10 (also shown in FIG. .

A set of laser light source 12 and light receiving sensor 13, which is a feature of the present invention, is provided in association with each divided iron 98 to 9d. As shown in FIGS. 2 and 3, its specific position is on the downstream side of each of the divided ronds 98 to 9d, and is opposed to the thread 2 across the entrance portion formed thereby. Thereby, the laser beam emitted from the laser light source 12 crosses the openings on the downstream side of the divided irons 98 to 9d. Therefore, either split rod 9a
When a thread breakage occurs in connection with ~9d, a part of this thread blocks the optical path from the laser beam 1 [12 to the light receiving sensor 13,
The light reception signal of the light reception sensor 13 is caused to change. The w-system including such a laser light source 12 and light receiving sensor 13 will be described later with reference to FIG.

Preferably, two sets of laser beams 1!14 and a light receiving sensor 15 are also provided on the upstream side near 1110. This is to detect yarn breakage that could not be detected by the plurality of sets of laser beams 1112 and light receiving sensor 13 described above, and to improve reliability. That is, there are various aspects of thread breakage, and for example, when a broken thread floats up or hangs down, the laser beam 1114 and the light receiving sensor 15 work advantageously.

FIG. 4 is a block diagram showing a control system for detecting thread breakage and stopping the light beam sizing machine. Each laser beam 111
The laser beam emitted from 2 is received by a light receiving sensor 13. Each signal from the light receiving sensor 13 is given to a waveform shaping circuit 17 via a switch 16. Each output signal whose waveform has been shaped by this waveform shaping circuit 17 is input to an OR logic circuit 18, respectively. or theory 1 circuit 1
The output signal of 8 is input to the stop control circuit 19.

This stop control circuit 19 is for controlling the operation of this beam light gluing machine to stop.

Usually, dividing rods 98 to 9 provided in the ridge splitting device 8
A necessary number of d are provided, but in actual use, some of them are selected and used. Therefore, the above-mentioned switch 16 is provided to select the laser beam 1112 and light receiving sensor 13 related to the split rods 9a to 9d actually used. That is, only the signal from the light receiving sensor 13 associated with the turned-on switch 16 is inputted to the OR logic circuit 18 via the waveform shaping circuit 17. Therefore, if a thread breakage detection signal is received from one of the light receiving sensors 13 that currently needs to be activated, that signal is transmitted through the related waveform II circuit 17 to the OR theory II! Input to circuit 18, OR logic 1! @
A signal for driving the stop control circuit 19 is output from 1118 .

In this way, thread breakage can be detected and the beam light sizing machine can be stopped immediately.

Note that when the laser light source 14 and light receiving sensor 15 as shown in the second wA and FIG. do it.

In this invention, there are some additional noteworthy effects. It's about static electricity. The generation of static electricity causes the yarn to become fluffy, which adversely affects subsequent processes in the loom.

Conventionally, the yarn after splitting has a 8,000 to 2
Generation of static electricity of 0,000V was observed.

However, when a laser beam of Laser Beam III 2b% according to the present invention was used, the generation of static electricity was suppressed to about 1000V. The reason for this is not clear (λ has certainly been confirmed by experiment, and it is thought that the ionization of air by the laser beam suppresses the generation of static electricity.

As described above, according to the present invention, yarn breakage can be quickly detected in a beam light sizing machine operated at high speed, and the unexpected effect of suppressing the generation of static electricity can be achieved.

[Brief explanation of drawings]

FIG. 1 is a front view schematically showing the beam light gluing. FIG. 2 is an illustrative front view showing a portion of the ridge splitting device which is a feature of the present invention, and FIG. 3 is a similarly illustrative plan view. FIG. 4 is a block diagram showing a control system for controlling the operation of the beam light sizing machine to stop based on thread breakage detection. In the figure, 1 is a beam creel, 2 is a thread, 3 is a glue tank,
5 is a dryer, 7 is a warp beam, 8 is a slit splitter, 9
A to 9d are dividing rods, 12 is a laser light source, and 13 is a light receiving sensor. Procedural amendment value phantom Showa s1 April 16, 1998 Mr. Commissioner of the Japan Patent Office 1, Indication of the case Patent order No. 45285 of 1982 2 Name of the invention Beam IIS attachment device 3, Relationship with the person making the amendment 11 cases Patent application Person Address: 17424 Okubo, Sennan, Osaka Prefecture, 17424 Okubo, Sennan, Osaka Prefecture Address: 2-8-9 Tenjinbashi, Hi-ku, Osaka City Yachiyo Daiichi Bldg. Attached is the attached page 81 (〇nishiki)
Supplement the power of attorney as attached. . that's all

Claims (1)

[Claims] A plurality of loosely wound suction beams are gathered together, glued together, and dried! : A beam warp gluing machine equipped with a mechanism for cutting yarn and winding it into a warp beam, which is equipped with a laser light source and a light-receiving sensor that are attached to optically detect yarn breakage in the part where the fl slot allocation operation is performed. , characterized in that the laser beam emitted from the laser light source is configured to be received by the light receiving sensor on the downstream side of the divided rond provided for dividing the groove, cross the beam opening, and be received by the light receiving sensor. A beam warp gluing machine.