JPH0629681Y2 - Measuring device for wire rod of double twisting type twisting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a wire rod measuring device for a double twist type twisting machine.

[Conventional technology]

FIG. 7 shows a general example of a stranded wire winding section of a double twist type stranded wire machine. As shown in the figure, the support frames 1a, 1b
The rotation cage 3a, which is supported by bearings 2a and 2b at the center, is rotated about an axis XX by a motor (not shown). In addition, a pair of bobbin device spindles 6 and 6a are provided on the cradle 5 which is supported inside the rotating cage 3a through bearings 4a and 4b.
It is attached so as to face the Y direction. Of the bobbin device spindles 6 and 6a, one spindle 6 is attached to the cradle 5 via a bearing 7, and the other spindle 6a (movable spindle 6a) has a built-in bearing and forms a pair with this. The bobbin 8 is attached to and removed from the cradle 5 by moving the spindle 6 in and out of the spindle holder 7a. In the figure, 9 is a bobbin drive motor for winding the twisted wire 10 around the bobbin 8.

The twisted wire 10 in the cradle 5 is wound around the take-up pulley 11 and the measuring pulley 12 several times, and then the tension of the twisted wire 10 passes through the guide pulley 13 and the dancer guide pulley 14 that expands and contracts between the pulleys. And is wound around the bobbin 8 through the traverser guide pulley 17 connected to the traverser shaft 16. The measurement of the length of the wire wound on the bobbin 8 (hereinafter, referred to as a scale) is performed in the following format.
Usually, when the measured length is reached and the scheduled length is reached, alarms and machine stoppages are given.

FIG. 8 shows a conventional example of a wire scale measuring device of the most common double twist type twisting wire machine. The rotary scale 18 is driven directly from the scale pulley 12 in the cradle 5 or via a transmission mechanism having an appropriate reduction ratio to measure the scale. Although the control signal reaches the planned length, the rotary measuring instrument 18
Control circuit 20 through slip rings 19 and 19a
Be transmitted to.

FIG. 9 shows another example of the measuring device. The cam ring 21 is rotated directly from the measuring pulley 12 in the cradle 5 or via a transmission mechanism having an appropriate reduction ratio,
The limit switch 22 installed so as to contact with it is opened and closed. The open / close signal is sent to the slip rings 19, 19
It is transmitted to the scale 23 via a. The control signal of what has reached the schedule is transmitted to the control circuit 20.

FIG. 10 shows still another example of the measuring device. Unlike the previous examples, this device measures the strands before they are twisted by a twisting machine. Twisting machine winding section 24
The wire 25 that is guided to passes through the measuring pulley 26 and the guide pulley 27. The rotation of the measuring pulley 26 at that time is driven directly or via a transmission mechanism having an appropriate speed reduction ratio to drive the rotary measuring instrument 18 to measure. The control signal is transmitted to the control circuit 20 even though the predetermined length is reached.

[Problems to be solved by the invention]

Each of the above-mentioned conventional techniques has the following problems, which will be described with reference to FIGS. 8 to 10 described above. Since the measuring device of FIG. 8 measures with the measuring pulley 12 near the winding bobbin, there is an advantage that there is little error from the actual length, but the rotary measuring device 18 has the rotating cage 3a. Since it is inside, it has the following drawbacks. (1) The numbers are hard to see. (2) The planned length cannot be changed while driving. (3) A slip ring mechanism is required.

Since the measuring device of FIG. 9 measures with the measuring pulley 12 near the winding bobbin as in the case described above, the measuring accuracy is high in a normal state. But slip rings 19, 19
The opening / closing signal transmitted through a is the slip ring 1
If the conduction state of the portions 9 and 19a is bad, a plurality of opening / closing signals are issued for one rotation of the cam ring 21 due to chattering and the like, and a plurality of counts are made, and the true length becomes shorter than the measured length. .

The measuring device of FIG. 10 is easy to see because the measuring device is installed outside the twisting machine winding section 24, and since it does not use a slip ring mechanism, it has few failures and is inexpensive. However, in this device, there is a big defect that the measured value and the true value are different due to the twist pitch of the twisted wire and the wire tension (the finer the twist pitch, the shorter the twisted wire. Is strong, the line will be stretched and become longer).

The present invention has been made in view of the above points, and provides a wire rod measuring device for a double-twisting type twisting wire machine capable of easily and accurately measuring a twisted wire. The purpose is.

[Means for solving problems]

The above-mentioned object is to measure the measuring means by a reflector chip attached to a measuring pulley, and two photoelectric switches for detecting the reflector chip arranged at a predetermined position outside the rotating cage with its optical axis shifted. It is achieved by forming a processing control device that is connected to the photoelectric switch, processes, measures, and controls a signal from the photoelectric switch.

[Action]

The measuring pulley rotates according to the flow of the twisted wire. The reflector chip provided on the measuring pulley appears once every one rotation of the measuring pulley. Two photoelectric switches detect this. The detected signal is processed by the sensor controller of the processing control device and measured by the scale, and when the predetermined length is reached, the control circuit issues a machine stop or alarm. Therefore, the number of revolutions equal to the number of revolutions of the scale pulley can be measured, the scale can be accurately performed without malfunction, and the photoelectric switch and the processing control device are provided outside the rotating cage. Not only can the scale be preset during operation, and the scale can be easily viewed, but since a slip ring is not used as in the conventional case, maintenance can be facilitated and the scale can be facilitated.

〔Example〕

Hereinafter, the present invention will be described based on the illustrated embodiments. 1 to 4 show an embodiment of the present invention.
Since the same parts as those of the prior art are designated by the same reference numerals, the description thereof will be omitted. In the present embodiment, the measuring means is mounted on the measuring pulley 12 and is opposed to the reflector chip 28 at a predetermined position outside the rotating cage 3a, and photoelectric switches 30a and 30b for detecting the reflector chip 28 are provided. Photoelectric switch 30
a, 30b, and a processing control device for processing, measuring, and controlling the signals from the photoelectric switches 30a, 30b. By doing so, it becomes possible to measure the stranded wire 10 with high accuracy and easily.
It has made it possible to perform a zero scale with high accuracy and easily. 2
It is possible to obtain the wire scale measuring device of the twisted twisting machine. The structure is as follows: (a) The tip 2 of the reflector is attached to a part of the side surface of the measuring pulley 12.
Attach 8.

(B) As shown in FIG. 3, the measuring pulley 12 is attached to the cradle 5 via the bearing 31 and is attached to the stranded wire 10.
You can freely rotate according to the flow of.

(C) The photoelectric switches 30a and 30b look into the side surface of the measuring pulley 12 from the outside of the rotating cage 3a.

(D) As shown in FIG. 2, the mounting position is such that the optical axis is displaced so that the reflector chip 28 mounted on the side surface of the measuring pulley 12 is not detected at the same time.

(E) The detection sensitivity and the separation distance between the photoelectric switches 30a and 30b and the measuring pulley 12 are detected by the reflector chip 28 attached to the measuring pulley 12, but the measuring pulley 12 or the measuring pulley 12 and the photoelectric switch are detected. 30a, 30b
Adjustment is made so that the rotating cage 3a that is hidden in between is not detected.

(F) The detection signals of the photoelectric switches 30a and 30b are input signals of the sensor controller 32 in the preceding stage of the scale 23.

(G) The sensor controller 32 is the photoelectric switch 30a
A program is prepared so that the output is turned on at the rising edge of and the output is turned off at the rising edge of the photoelectric switch 30b.

(H) The measuring instrument 23 is counted up by turning on and off the output of the sensor controller 32.

(I) After the measuring instrument 23, the control circuit 20 for stopping the machine and issuing an alarm is provided.

By doing so, it will be understood from FIG. 5 (a) (j) how the photoelectric switches 30a and 30b operate depending on the position of the tip 28 of the reflector on the measuring pulley 12 and the position of the rotating cage 3a. ) Will behave as shown.

In FIGS. 5 (a) to (j), the substantially conical line extending from the photoelectric switches 30a and 30b toward the measuring pulley 12 allows the photoelectric switches 30a and 30b to detect the tip 28 of the reflector. Indicates the range. The rotating cage 3a between the photoelectric switches 30a and 30b and the measuring pulley 12 shown in FIGS. 5 (b), (d), and (h) appears at that time, and the photoelectric switches 30a, 30b
30b and the reflector chip 28 are shielded.

(a) Optoelectronic switches 30a and 30b are both reflector chips 2
OFF because the optical axis of 8 does not match.

(b) Both photoelectric switches 30a and 30b are turned off because they are blocked by the rotating cage 3a.

(c) Only the photoelectric switch 30a has the reflector chip 2 in the optical axis.
8 comes in, so it is ON (photoelectric switch 30b is OF
F).

(d) The photoelectric switch 30a is a reflector chip 2 within the optical axis.
Although it contains 8, it is turned off by being blocked by the rotating cage 3a.
(The photoelectric switch 30b is also off).

(e) The photoelectric switch 30a is turned on again (the photoelectric switch 30b is turned off) because the rotating cage 3a that has blocked the optical axis is left and the reflector chip 28 remains in the optical axis.

(f) The photoelectric switch 30a, 30b is a reflector chip 2
OFF when the optical axis does not match with 8.

(g) Only the photoelectric switch 30b is a reflector chip 2 within the optical axis.
8 is ON, so it is ON (photoelectric switch 30a is OF
F).

(h) The photoelectric switch 30b is a reflector chip 28 within the optical axis.
It is turned off because it is blocked by the rotating cage 3a (the photoelectric switch 30a is also turned off).

(i) The photoelectric switch 30b is turned on again (the photoelectric switch 30a is turned on) because the rotating cage 3a that has blocked the optical axis is gone and the reflector chip 28 remains in the optical axis.

(j) The optical axes of the photoelectric switches 30a and 30b do not match and OF
F. FIG. 6 shows an ON / OFF state of the photoelectric switches 30a and 30b, and an output diaphragm processed by the sensor controller 32 using the ON and OFF states as inputs.

The output of the sensor controller 32 changes only at the rise of each of the photoelectric switch 30a and the photoelectric switch 30b.
Even if 0a and 30b are affected, the signal coming out of the sensor controller 32 becomes an ON / OFF signal once for each rotation of the measuring pulley 12. This ON,
Since the OFF signal is guided to the measuring instrument 23, it is possible to display the number of revolutions equal to the number of revolutions of the measuring pulley 12.

As a result of examining the characteristics of this device, the rotation speed of the rotating cage 3a was 0 to 1500 rpm, and the pitch of the twisted wire 10 was 30 to 20.
It has been clarified that the scale can be measured without malfunction in the range of 0.

As described above, according to the present embodiment, since the measuring instrument 23 is installed outside the rotating cage 3a, the measuring instrument 23 can be preset during operation. Moreover, not only is the scale 23 easy to see, but since no slip ring is used, maintenance is easy.

[Effect of device]

INDUSTRIAL APPLICABILITY As described above, the present invention can provide a wire rod measuring device for a double-twisting type twisting machine, which enables highly accurate and easy measurement of a twisted wire.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of a wire rod measuring device of a double twist type twisting machine of the present invention, and FIG. 2 is an example of a wire rod measuring device of a double twist type twisting machine of the present invention. The front view of the embodiment is shown in FIG.
FIG. 5 is a cross-sectional view taken along line A, FIG. 4 is an electrical connection diagram of a processing control device similarly connected to the photoelectric switch of one embodiment, and FIG.
(a) ~ (j) is a perspective view showing the operation of the photoelectric switch according to one embodiment of the wire rod measuring device of the double twist type twisting machine, FIG. 6 is also a photoelectric switch during operation according to one embodiment FIG. 7 is a view showing the operation of the sensor controller, FIG. 7 is a plan view of the stranded wire winding section of the twisting type twisting machine of the wire rod measuring device for the twisting type twisting machine, and FIG. FIG. 9 is a plan view of a wire scale measuring device of a twisting and twisting machine, FIG. 9 is a plan view of another conventional example, and FIG.
FIG. 0 is a plan view of still another conventional example. 3a ... Rotating cage, 5 ... Credor 8 ... Bobbin, 10 ... Twisted wire 12 ... Measurement pulley 20 ... Control circuit, 23 ... Measuring instrument 28 ... Reflector tip 30a, 30b ... Photoelectric switch 32 …… Sensor controller

Claims (2)

[Scope of utility model registration request] 1. A measuring means for measuring the length of a twisted wire wound around a bobbin provided in a cradle inside a rotatable cage, in a cradle near the bobbin, and In a measuring device for a wire rod of a two-twisting type twisting machine, which is provided on a rotatable measuring pulley through which a twisted wire wound on a bobbin passes, a reflector in which the measuring means is attached to the measuring pulley. Chip, two photoelectric switches for detecting the reflector chip arranged with the optical axis shifted, and processing control for connecting to this photoelectric switch, processing signals from the photoelectric switch, measuring, and controlling A wire rod measuring device for a double twist type twisting machine, which is characterized in that it is formed with a device. 2. The processing control device comprises a sensor controller connected to the photoelectric switch, a measuring instrument connected to the sensor controller, and a control circuit connected to the measuring instrument. A measuring device for a wire rod of a double twist type twisting machine according to claim 1 of a certain utility model registration claim.