JPS6010985B2 - Linear body remaining amount detection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for detecting the amount of wire such as bare wire or coated wire wound around a delivery bobbin.

When coating bare wires with enamel or plating, or when twisting multiple wires, it is important to know when the remaining amount of wires wound around the delivery bobbin has decreased below a certain level. It is necessary to replace the bobbin with a fully wound one.

For this reason, as shown in FIG.
At the same time, a photoelectric switch 4 that emits and receives light and emits a fin air signal according to the amount of light received is placed at a position corresponding to the reflector 3, and the signal from the photoelectric switch 4 is input to a detector 5. A device has been proposed in which when the signal level becomes above or below a certain value, an alarm device 7 is activated via an operation circuit 6 to issue an alarm for exchanging the old and new bobbin. According to this proposed device, the remaining amount can be kept almost constant regardless of the end direction of the linear body 1 on the set bobbin 2, but since there is a large amount of remaining amount, there is a problem that the output amount also increases. There is. The present invention has been made in view of the above-mentioned problems, and is intended to provide an improved remaining amount detection device that can reduce the amount of waste.
The gist of the present invention is that a reflector is installed on the winding drum of a bobbin, and a photoelectric device that irradiates light onto the reflector of the winding drum and generates a signal according to the amount of received reflected light. In the wire amount detector that operates the detector based on a signal from a switch, the reflector is installed at two locations close to both edge sides of the winding chest of the bobbin, and Two optical switches are installed at two locations that are perpendicular to the center line of the chest and at approximately equal distances from the extension line of the collar of the bobbin, and both of the two photoelectric switches There is provided an apparatus for detecting the amount of money in a filament body, characterized in that the apparatus is configured to operate when both of the reflectors are detected.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the bran bran remaining amount detection device of the present invention will be described below with reference to the drawings.

FIG. 2 shows one example, and the same reference numerals as in FIG. 1 are given the same reference numerals.

Therefore, the feature of the present invention is that two photoelectric switches 41 and 42 are used as the remaining amount detection section, and these are arranged at a certain interval, and based on the signals from both photoelectric switches 41 and 42, the The point is that the detector 5 is operated to generate an alarm.

In this case, the circuit within the detector 5 is AND (NAND) operation.

Also, photoelectric switches 41 and 42 that send signals to this detector 5
are arranged so that the distances from the extension line of each poisoned part of the bobbin 2 are approximately equal, and the distance is determined by the outer diameter of the linear body 1,
Selection is made depending on the delivery speed, the spacing between the flanges, etc. If possible, it is desirable that the distance between the photoelectric switches 41 and 42 can be adjusted as appropriate depending on the distance between the flanges of the bobbin 2.

With such a configuration, the detector 5 does not operate until the remaining amount of the linear body 1 gradually decreases and the exposed area of the reflector 3 on the photoelectric switch 42 side following the photoelectric switch 41 reaches a certain amount. Therefore, the bobbin 2 can be set regardless of the end direction of the linear body 1, and by selecting the distance between the light force switches 41 and 42, the remaining amount of the linear body 1, the extension, and the starting point can be determined. It can be kept below a certain amount.

As shown in the illustrated example, if a delay device 8 such as a timer relay is interposed between the detector 5 and the operating circuit 6, the delay time can be adjusted depending on the thickness of the linear body 1, the feeding speed, etc. By setting this, it is possible to further reduce the amount of shoulder protrusion.

FIG. 3 shows an example in which a plurality of delivery bobbins 2 are arranged in a straight line to send out a plurality of linear bodies 1 at a time. A gantry rail 10 is provided along the rail 10, and the support body 9 to which two photoelectric switches 41 and 42 are attached can be moved as appropriate along the rail 10.

In this case, a roll 91 is attached to the part of the support 9 that is mounted on the rail 10 to enable smooth movement, but it is recommended to provide a stopper to keep it in a predetermined position. Desirable - When sending out a plurality of linear bodies 1 at the same time, it is rare that the remaining amounts of linear bodies in the plurality of bobbins 2 are the same, and even if the amounts are close to each other, it is Since the operator can confirm this when replacing the bobbin based on the alarm, the detector can be moved to and set another bobbin with less remaining capacity, and the fewer detectors can be used effectively.

Depending on the case, there may be no problem in arranging several devices with the same configuration. In addition, in the above example, in order to keep the reflectance from the winding chest constant, a case was shown in which the reflector 3 was applied, but it is also possible to use the direct reflected light from the same part of the winding trunk. It is also possible to use sheets that are wrapped around the body and used as an underlay.

For a linear body having a relatively high reflectance, the reflectance of the drum may be made small to create a difference in reflectance.

As is clear from the above description, according to the present invention, regardless of the final direction of the linear body in the set bobbin, the remaining amount, extension, and protrusion of the linear body are reduced, and the linear body is It has the advantage of being able to be used effectively, and its practical value is extremely great.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a conventionally known remaining amount detection device, and FIG.
FIG. 3 is an explanatory diagram showing an example of the device according to this invention, and FIG. 3 is an explanatory diagram showing an example of application of the device according to the invention. 1: Linear body, 2: Delivery bobbin, 3: Reflector, 4, 41
and 42: photoelectric switch, 5: detector, 6: operation circuit,
7: alarm, 8: delay device, 9: support, 10: rail. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 A reflector is installed on the winding drum of the bobbin, and detection is based on a signal from a photoelectric switch that irradiates light onto the reflector on the winding drum and generates a signal according to the amount of reflected light received. In the remaining amount detector of the filament body that operates the device, the reflector is installed at two places close to both collar sides of the winding drum of the bobbin, and Two photoelectric switches are installed at two locations that are perpendicular to each other and at approximately equal distances from the extension line of the flange of the bobbin, and both of the two photoelectric switches detect the reflector. What is claimed is: 1. A residual amount detection device for a striatum, characterized in that the device is configured to operate when: