JPH06190341A - Method for controlling band marking apparatus of long article - Google Patents

Abstract

PURPOSE:To change the color of a band mark attached on a long article without stopping running of the long article or cutting the article by controlling a long article band marking apparatus applying band marks at intervals on the surface of the long article by continuous ejection of a coating by means of an ejecting nozzle vibrating within a plane being vertical to the running direction of the article. CONSTITUTION:When a color of a band mark applied on a long article is changed, an ejecting nozzle 10a is moved so as not to make an ejected substance from the ejecting nozzle fall on the long article. Thereafter, a cleaning liq. is ejected from the ejecting nozzle to wash the ejecting nozzle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method of a strip band marking device, and more particularly to a strip product such as an electric wire or a cable which is insulation-coated with an electric wire coating material such as a thermoplastic, and is perpendicular to the running direction. Controls a strip-shaped band marking device that applies band (belt-shaped) marks at intervals on the surface by continuous spraying of paint by a spray nozzle that vibrates in a plane, especially when changing the color of the band mark attached to the strip. It relates to a control method.

[0002]

2. Description of the Related Art Conventionally, an electric wire band marking apparatus used in an electric wire extrusion line as shown in FIG. 6 is generally known as the above-described long band marking apparatus. In the illustrated electric wire extrusion line, the core wire 3 is pulled out from the core wire bundle 2 wound around the core wire drum 1 and sent to the electric wire coating / applying device 4. In the wire coating device 4,
The electric wire coating material from the electric wire coating material tank 5 is applied to the outer periphery of the core wire 3 to form the coated electric wire 6. Immediately after forming the electric wire, the coating material is soft, and the electric wire 6 is sent through the cooling water tank 7 to cure it, and finally the electric wire winding drum 8
Is wound into a wire bundle 9.

[0003] Between the wire coating deposition device 4 and the cooling water tank 7, along the running direction of the wire 6 One only opposite sides of the wire 6 by shifting the positions from each other, a pair of wire band marking apparatus 10 ₁ and 10 ₂ are installed. The pair of electric wire band marking devices 10 ₁ and 10 ₂ includes a core wire 3
It is controlled by the control device 12 which inputs the linear velocity signal from the encoder 11 which detects the linear velocity.

As shown in FIG. 7, each electric wire band marking device has a paint injection nozzle 10a, and the base of the paint injection nozzle 10a contains a paint of a band mark color to be applied to the outer periphery of the electric wire 6 (not shown). The paint is supplied from the paint tank via a tube 10b by a pump (not shown). The paint injection nozzle 10a is rotatably supported at its base in a fixed angle range, and the paint injection port 10c at the tip thereof is always held in the horizontal state shown in the drawing so as to face the electric wire 6. However, when the band mark is applied to the electric wire 6, the actuator 10e connected to the rotating shaft 10d is driven to reciprocally rotate as shown by an arrow in the figure.

When the paint injection nozzle 10a is reciprocally driven by the actuator 10e, the paint injection port 10c is driven.
The paint spouted from the product vibrates and wavy in a plane perpendicular to the traveling direction of the electric wire 6, and when the wavy spouted paint moves across the electric wire 6, one side surface of the outer circumference of the electric wire 6 Band marks will be applied. The extra paint that has flown to the rear of the electric wire 6 is received by the paint receiver 10f,
It is collected in the paint tank described above.

The above-mentioned principle of band marking will be described in more detail with reference to FIG. FIG. 8 shows a case where the paint injection nozzle 10a instead of the electric wire 6 moves along the electric wire 6, and the paint injected from the paint injection nozzle 10a periodically oscillates as shown in FIG. Will come across. As a result, the electric wire 6 is marked with the band marks M _{1 on} one side surface of the electric wire 6 at regular intervals by the electric wire band marking device 10 ₁ as shown in FIG. 9A. The same band mark is also given by the wire band marking device 10 ₂ which is installed on the opposite side of the wire 6 from the wire band marking device 10 ₁ with the wire 6 interposed therebetween. Is applied to.
Therefore, both wire band marking devices 10 ₁ and 10 ₂
Are operated in synchronization with each other, and as shown in FIG.
Band marks M ₁ and M ₂ respectively applied by both devices
By matching the positions of the
Is formed over substantially the entire peripheral surface of the outer periphery of the.

The band mark of the electric wire 6 represents information such as the thickness and insulation strength of the core wire by the color of the paint, and the pair of electric wire band marking devices 10 ₁ and 10 _{2 in FIG.}
Therefore, it is necessary to change the color of the paint in order to apply band marks of various colors. For example, in order to enable two-color switching, as shown in FIG. 10, one of the two paint tanks 10g ₁ and 10g ₂ is connected to the pump 10i via the switching valve 10h.
One paint injection nozzle 10 by switching 0h
The color of the band mark is changed by switching the paint ejected from a.

However, when the switching valve 10h is switched to change the color, the switching valve 10h moves to the injection nozzle 10a.
Since the paint before the switching remains before the switching, if the paint is sprayed onto the electric wire 6 immediately after the switching, the band mark of the mixed color of the residual paint and the new paint comes to be attached. For this reason, in addition to the two paint tanks, a washing liquid tank 10g ₃ is provided, and once the color is changed, the washing tank 10g ₃
The cleaning liquid from ₃ is supplied to the injection nozzle 10a through the switching valve 10h to wash away the previous residual paint and then switch to a new paint tank.

In addition, a plurality of band marks of different colors are provided, and information such as the thickness of the core wire of the electric wire and the insulation strength is expressed by the combination of the color of the band marks.
As shown in FIG. 11, in addition to the pair of wire band marking devices 10 ₁ and 10 ₂ , two sets of wire marking devices 1
Some have 0 ₃ and 10 ₄ , 10 ₅ and 10 ₆ . In this device, three sets of wire band marking devices can be selectively used to apply band marks of two to three different colors in combination. Note that FIG. 12 shows an electric wire 6 in which band marks Ma, Mb, and Mc of three colors are repeatedly applied by the apparatus of FIG.

In this device, for example, when the color combination of the two band marks is switched midway, it is necessary to switch the spray nozzle 10a for spraying the paint from the devices 10 ₁ and 10 ₂ to the devices 10 ₃ and 10 ₄ , for example. However, at this time, the spray nozzle 10 that has sprayed the paint until now
The paint remains in the solid a and solidifies, so that the paint cannot be ejected from the injection nozzle 10a the next time it is used. Therefore, in order to prevent such a situation, it is necessary to wash the injection nozzle 10a immediately after the use is stopped.

[0011]

In the former device shown in FIG. 6 described above, when the spray nozzle 10a is washed so that the new paint does not mix with the residual paint when changing the color of the band mark, the cleaning waste liquid is generated. Since the electric wire 6 is ejected from the injection nozzle 10a and applied to the electric wire 6 facing the electric wire, the electric wire extruding line is stopped and the electric wire 6 is cut in this cleaning operation. In this way, if the wire extrusion line is stopped or the wire is cut for each color change of the band mark, the operation of the line becomes unavailable during that time, and the work of connecting the wires is required when restarting the operation. was there.

In the latter device shown in FIG. 11, when the color of the band mark is changed, the spray nozzle 10a whose spray has been stopped is cleaned so that the residual paint in the spray nozzle that has stopped spraying does not solidify. Also in this case, since the cleaning waste liquid is ejected from the ejection nozzle 10a and is applied to the electric wire 6 facing this, the electric wire extrusion line is stopped and the electric wire 6 is cut. Therefore, there is a problem similar to the former device.

Therefore, in view of the above-mentioned conventional problems, the present invention forms band marks on a surface of a long strip with a space provided by continuous spraying of a paint by a spraying nozzle vibrating in a plane perpendicular to the traveling direction. (EN) A control method for controlling a band-marking device to be applied so as to change a band mark color attached to a long-length object without stopping the traveling of the long-length object or cutting the long-length object. Has an aim.

[0014]

In order to achieve the above object, a first control method for a strip-shaped band marking apparatus according to the present invention is a jetting method for oscillating a strip in a plane perpendicular to its running direction. In a method of controlling a strip-shaped band marking device for applying band marks on a surface of the strip by continuously spraying paint from a nozzle, when changing the color of the band mark to be applied to the strip, the spray nozzle is moved from the spray nozzle. The cleaning liquid is sprayed from the spray nozzle and cleaned after the sprayed product moves so as not to contact the strip-shaped product.

In order to achieve the above object, the control method of the strip-shaped band marking apparatus according to the present invention is performed by continuously spraying paint on a strip by a spray nozzle vibrating in a plane perpendicular to its running direction. In a method of controlling a strip-shaped band marking device for applying band marks at intervals on a surface, when changing the color of the band mark to be applied to the strips, the jetting is performed so that the jetted matter from the jet nozzle does not hit the strips. The receiving means for receiving the ejected matter is moved between the nozzle and the long strip.

[0016]

According to the procedure of the first control method, the jet nozzle is moved when changing the color of the band mark to be applied to the long strip,
After that, since the cleaning liquid is sprayed from the spray nozzle to perform cleaning, the cleaning liquid, which is the sprayed product from the spray nozzle at the time of cleaning, does not come into contact with the strip.

According to the procedure of the second control method, when the color of the band mark applied to the strip is changed, the receiving means for receiving the ejected matter is moved between the jet nozzle and the strip.
The ejected matter from the ejecting nozzle is received by the receiving means, and the strip behind it is prevented from hitting.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an electric wire band marking device controlled by an embodiment of a control method according to the present invention.
The same parts as those of the conventional device described above with reference to FIG. 7 are designated by the same reference numerals.

In FIG. 1, an electric wire band marking device 10 is connected with a vertical drive mechanism including a hydraulic cylinder 11. This vertical drive mechanism is constructed by connecting the projecting end of the piston rod 11a of the hydraulic cylinder or the air cylinder 11 to the lower end of the wire band marking device. Good. Since the electric wire 6 is band-marked, when the spray nozzle 10a is reciprocally rotated and the paint is sprayed from the paint spray port 10c at the tip thereof,
The piston rod 1 of the hydraulic cylinder 11 is arranged so that the injection nozzle 10a substantially faces the electric wire 6 as shown in FIG.
1a is projected to the maximum and the electric wire band marking device connected to the upper end is held at the uppermost position.

When cleaning the jet noise 10a by stopping the reciprocating rotation of the jet nozzle 10a for color change,
As shown in FIG. 2B, the piston rod 1 of the hydraulic cylinder 11 is arranged so that the injection nozzle 10 a does not face the electric wire 6.
1a is retracted to the maximum and the electric wire band marking device connected to the upper end thereof is held at the lowermost position. In the state of being held at the lowermost position, the cleaning liquid ejected from the ejection nozzle 10a is received by the cleaning liquid receiver 12 provided separately from the paint receiver 10f, and is recovered as waste liquid via a discharge pipe (not shown).

When the color of the paint jetted from the jet nozzle 10a is changed by adding such a vertical drive mechanism, the residual paint before switching is washed before jetting a new paint from the jet nozzle 10a. At this time, the injection noise 10a is moved by retracting the piston rod 11a of the hydraulic cylinder 11 and lowering the wire marking device 10 as shown in FIG. 1 (b), and the cleaning liquid ejected from the injection noise 10a is transferred to the wire 6. It can be prevented. Therefore, the washing operation at the time of color change can be performed without stopping the traveling of the electric wire 6 or cutting the electric wire 6.

In the above embodiment, one electric wire band marking device has been described. However, in the case where three sets of electric wire band marking devices are provided for making band marks of three colors, as shown in FIG. The hydraulic cylinder 1 of the vertical drive mechanism is attached to the band marking devices 10 ₁ to 10 _6.
To 1 ₁ to 11 ₆ of the piston rod 11a ₁ ～11A ₆ to be connected, respectively.

When a vertical drive mechanism is provided in each of the plurality of electric wire band marking devices as described above, when switching from a three-color band mark to a two-color band mark, for example, one set for stopping the ejection of the paint is shown. The electric wire band marking devices 10 ₃ and 10 ₄ are lowered and the two color band marking devices 10 ₁ and 10 ₂ , 10 ₅ and 10 ₆ continue to perform the two-color band marking, that is, the running of the electric wire 6. The injection nozzle 10a of the wire band marking device in which the spray of the paint is stopped without stopping
Can be washed before the paint remaining in it cures. Therefore, the wire marking devices 10 ₃ and 1
When it is desired to apply a color band mark of 0 ₄ , the paint can be jetted by raising these devices and reciprocally rotating the jet nozzle 10a.

In the above-described embodiment, the electric wire band marking device 10 is lowered as a whole at the time of cleaning at the time of color change. However, as shown in FIG. 3, the jet nozzle 10a is held in a downward state and this state is maintained. Alternatively, the cleaning liquid may be ejected from the ejection nozzle 10a. There are various specific methods for holding the ejection nozzle 10a downward, and an example thereof will be described below with reference to FIG. 4 showing a generally used actuator 10e of the ejection nozzle 10a.

In FIG. 4, the actuator 10e is
It has a pair of U-shaped iron cores e-1 and e-2. Iron core e-
1 and e-2 are placed with their legs facing each other.
In addition, each leg is formed with a circular arc, and these four circles
A rotor e-3 made of a magnetic material reciprocates by the arc portion.
A moving space S is formed. Rotator e-3 rotates
It is supported by a bearing (not shown) via the shaft 10d.
It Also, it is wound around each leg of the iron cores e-1 and e-2.
Coil L₁~ L4_FourOf these, the arc parts face each other
Coil L wound around the leg₁And L₃Is terminals A and B
In between, coil L ₂And L_FourBetween terminals B and C respectively
It is connected in series.

With this structure, by grounding the terminal B and alternately applying a voltage to the terminals A and C, the coils L ₁ and L ₃ and L ₂ and L ₄ are alternately energized, and these coils are wound. A magnetic flux path is formed through the rotated leg. Therefore, the rotator e-3 reciprocally rotates within a predetermined angle range along the magnetic flux path, and the injection nozzle 10a connected to the rotation shaft 10d also reciprocally rotates. When the voltage application to the terminals A and C is stopped, the magnetic force for rotating the rotator 10d disappears and the tension spring (not shown) takes the neutral position shown by the solid line.

When the voltage is continuously applied to the terminal A,
Since the coils L ₁ and L ₃ are continuously energized, the rotator 10
d is held at the rotational position shown by the dotted line along the magnetic flux path passing through the leg around which the coils L ₁ and L ₃ are wound, and the injection nozzle 10
a is held in the downward state as shown in FIG.

FIG. 5 shows a third embodiment. In this embodiment, a second paint receiver 14 which can be moved up and down by a vertical drive mechanism 13 is provided between the injection nozzle 10a and the electric wire 6. Then, when the paint is ejected from the ejection nozzle 10a and the band mark is applied to the electric wire 6, the second paint receiver 14 is lowered as shown in FIG. 5B. In order to change the color of the paint ejected from the ejection nozzle 10a, when the cleaning liquid is ejected from the ejection nozzle 10a, or when the cleaning noise 1
When the band mark is not applied by the paint ejected from 0a, the cleaning liquid or the paint ejected from the injection nozzle 10a is raised just before the electric wire 6 as shown in FIG. It is possible to prevent from hitting 6.

Therefore, as in the case of the above-mentioned embodiment,
The operation can be performed without cutting the electric wire 6 when changing the color of the paint ejected from the ejection nozzle 10a. Particularly, when the band mark is not applied by the paint sprayed from the spray nozzle 10a, not only the running of the electric wire 6 does not have to be stopped, but also the cleaning work for preventing the paint from hardening by continuing to spray the paint. Becomes unnecessary. Note that FIG.
(B) shows the case where the cleaning liquid is not used,
The paints received by both receivers 10f and 14 are returned together to the paint tank. When cleaning is performed, the spray of the paint may be stopped and the cleaning liquid may be sprayed from the spray nozzle to be received by the receiver 14 and discharged as waste liquid.

When band marks are applied by a plurality of sets of electric wire band marking devices as shown in FIG. 2, the original coating material is continuously ejected instead of cleaning the spray nozzle of the lowered electric wire band marking device. May be.

[0031]

As described above, according to the present invention, when changing the color of the band mark applied to the long strip, the jet nozzle is moved so that the spout from the jet nozzle does not hit the strip. Or, when changing the color of the band mark to be applied to the strip, the receiving means for receiving the spout is moved between the jet nozzle and the strip so that the spout from the jet nozzle does not hit the strip. It is possible to change the band mark color attached to the long strip without stopping the running of the long strip or cutting the strip.

[Brief description of drawings]

FIG. 1 is a diagram for explaining an embodiment of a control method of a strip-shaped band marking device according to the present invention.

FIG. 2 is a diagram for explaining another embodiment of the control method of the long strip band marking apparatus according to the present invention.

FIG. 3 is a view for explaining another embodiment of the control method of the strip-shaped band marking device according to the present invention.

FIG. 4 is a diagram for explaining a specific method of driving the injection nozzle of FIG.

FIG. 5 is a view for explaining still another embodiment of the control method for the long strip band marking apparatus according to the present invention.

FIG. 6 is a diagram showing a configuration of an electric wire extrusion line to which an electric wire marking device controlled by the method of the present invention is applied.

FIG. 7 is a diagram for explaining a control method of a conventional wire marking device.

FIG. 8 is a diagram for explaining the principle of band marking.

FIG. 9 is a diagram showing an example of a band mark applied to an electric wire.

FIG. 10 is a diagram showing a specific example of color change of band marks performed using one jet nozzle.

FIG. 11 is a diagram showing an example of an electric wire marking device for applying a multicolor band mark.

12 is a diagram showing an example of a multicolor band mark applied to an electric wire by the device of FIG.

[Explanation of symbols]

6 Electric wire (strip) 10a Injection noise M ₁ , M2 ₂ Bandoo mark 14 Second paint receiver (receiving means)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H01B 7/36 Z 7244-5G

Claims (2)

[Claims] 1. A method of controlling a strip-shaped band marking device, wherein band marks are formed on a surface of the strip by a continuous spray of paint by a spray nozzle vibrating in a plane perpendicular to the traveling direction, When changing the color of the band mark to be applied to the strip, the spray nozzle is moved so that the sprayed product from the spray nozzle does not hit the strip, and then a cleaning liquid is sprayed from the spray nozzle for cleaning. A method for controlling a band marking device for long strips. 2. A method of controlling a strip-shaped band marking device, wherein band marks are formed on a surface of the strip by a continuous spray of paint by a spray nozzle vibrating in a plane perpendicular to the running direction, When changing the color of the band mark applied to the long strip, moving the receiving means for receiving the jet between the jet nozzle and the long strip so that the jet from the jet nozzle does not hit the strip. And a method for controlling a strip-marking band marking device.