JP6750877B2 - Insulated wire manufacturing device and insulated wire manufacturing method - Google Patents

Description

The present invention relates to an insulated wire manufacturing apparatus and an insulated wire manufacturing method.

There is known an insulated wire manufacturing apparatus that manufactures an insulated wire having an insulating coating on the outer peripheral surface of the conductor by applying insulating paint to the conductor in each row and heating the conductor while running in the longitudinal direction with the conductors arranged in parallel in a plurality of rows. Has been. In such an insulated wire manufacturing apparatus, the temperature of the conductor during heating in each row is measured for the purpose of improving the quality of the insulating coating and improving the manufacturing efficiency.

Such measurement of the conductor temperature is performed using, for example, a radiation thermometer. However, when the radiation thermometer is installed corresponding to the traveling position of the conductor, there is a disadvantage that it is difficult to measure the accurate temperature of the conductor due to the lateral deviation of the conductor during traveling. In this regard, as a method of measuring the conductor temperature using a radiation thermometer, for example, "a detection method and a detection device" (see JP 2009-229073 A) has been proposed.

JP, 2009-229073, A

The detection device described in the above publication measures the temperature of a metal pulley (guide sheave) that guides the conductor, and estimates the temperature of the conductor from the temperature of the pulley. Since this detection apparatus estimates the temperature of the conductor from the temperature of the pulley fixed at a predetermined position, it is considered that it is possible to prevent variations in the measured temperature due to lateral deflection of the conductor. However, since this detecting device does not directly measure the temperature of the conductor, it is difficult to accurately measure the temperature of the conductor. Further, this detection device can measure the temperature of the conductor only at the position where the pulley is arranged, and it is difficult to measure the conductor temperature at the desired position.

The present invention has been made based on the above circumstances, and an object thereof is to provide an insulated wire manufacturing apparatus and an insulated wire manufacturing method capable of relatively accurately and efficiently measuring the temperature of a conductor. To do.

An insulated wire manufacturing apparatus according to one aspect of the present invention made to solve the above problems is an insulated wire manufacturing apparatus for forming an insulating coating on a linear conductor running in a longitudinal direction, and the conductors are arranged in a plurality of rows. A traveling mechanism for traveling in a state in which the conductors are arranged in one row, one or a plurality of coating portions for coating the conductor of each row with the insulating coating material, and a heating of the conductor coated with the insulating coating material by the one or a plurality of coating portions 1 or A plurality of heaters, one or a plurality of radiation thermometers for measuring the temperature of the conductor heated by the one or a plurality of heaters, the one or more radiation thermometers, and the plurality of rows of conductors. And a moving mechanism for moving in a transverse direction.

An insulated wire manufacturing method according to another aspect of the present invention made to solve the above problems is an insulated wire manufacturing method for forming an insulating coating on a linear conductor running in the longitudinal direction, A traveling process of traveling in a state of being arranged in a plurality of rows, a coating process of coating the conductor of each column with an insulating coating, a heating process of heating the conductor coated with the insulating coating by the coating process, and a heating process described above. And a measuring step of measuring the temperature of the heated conductor with a radiation thermometer, wherein the radiation thermometer is moved in a direction traversing the plurality of rows of conductors in the measuring step.

INDUSTRIAL APPLICABILITY The insulated wire manufacturing apparatus and the insulated wire manufacturing method of the present invention can measure the temperature of the conductor relatively accurately and efficiently.

It is a typical side view showing the insulated electric wire manufacturing device concerning a first embodiment of the present invention. It is a typical front view of the insulated wire manufacturing apparatus of FIG.

[Description of Embodiments of the Present Invention]
An insulated wire manufacturing apparatus according to one aspect of the present invention made to solve the above problems is an insulated wire manufacturing apparatus for forming an insulating coating on a linear conductor running in a longitudinal direction, and the conductors are arranged in a plurality of rows. A traveling mechanism for traveling in a state in which the conductors are arranged in one row, one or a plurality of coating portions for coating the conductor of each row with the insulating coating material, and a heating of the conductor coated with the insulating coating material by the one or a plurality of coating portions 1 or A plurality of heaters, one or a plurality of radiation thermometers for measuring the temperature of the conductor heated by the one or a plurality of heaters, the one or more radiation thermometers, and the plurality of rows of conductors. And a moving mechanism for moving in a transverse direction.

The insulated wire manufacturing apparatus includes one or a plurality of radiation thermometers for measuring the temperature of the conductor heated by the heater, and the moving mechanism moves the radiation thermometers in a direction traversing a plurality of rows of conductors. The moving mechanism moves the radiation thermometer so that the light receiving surface faces the conductors in a plurality of rows, so that the temperatures of the conductors in a plurality of rows can be measured. In the insulated wire manufacturing apparatus, since the radiation thermometer moves in the above-mentioned direction, even if the conductor is laterally shaken, it is unlikely that the measured values vary due to the lateral shake. Therefore, the insulated wire manufacturing apparatus can relatively accurately measure the temperatures of the conductors in a plurality of rows. Further, since the insulated wire manufacturing apparatus can measure the temperatures of the conductors in a plurality of rows with one radiation thermometer, it is possible to reduce the number of radiation thermometers and improve the efficiency.

The shortest distance between the one or more radiation thermometers and the plurality of rows of conductors during movement may be equal. As described above, the shortest distance between the one or more radiation thermometers and the plurality of rows of conductors during movement is equal, so that the temperatures of the plurality of rows of conductors can be measured more accurately.

The insulated wire manufacturing apparatus may include an arithmetic unit that extracts, as a conductor temperature, a maximum value of measured values of the one or more radiation thermometers during movement. As described above, the temperature of the conductors in a plurality of rows can be easily and reliably measured by providing the arithmetic unit that extracts the maximum value of the measured values during the movement of the one or more radiation thermometers as the conductor temperature. ..

In the insulated wire manufacturing apparatus, one radiation thermometer may traverse the conductors in all the rows. In this way, one radiation thermometer can measure the temperature of the conductors of all the rows by traversing the conductors of all the rows, so that it is possible to reduce the equipment cost and promote efficiency. You can

Another invention made to solve the above problems is an insulated wire manufacturing method of forming an insulating coating on a linear conductor traveling in the longitudinal direction, wherein the conductor travels in a plurality of rows. The running process, the applying process of applying the insulating paint to the conductors in each row, the heating process of heating the conductor to which the insulating paint is applied by the applying process, and the temperature of the conductor heated by the heating process are radiated. A measuring step of measuring with a thermometer, and in the measuring step, the radiation thermometer is moved in a direction traversing the plurality of rows of conductors.

The insulated wire manufacturing method comprises a measurement step of measuring the temperature of the conductor heated by the heating step with a radiation thermometer, and this measurement step moves the radiation thermometer in a direction crossing the plurality of rows of conductors. The temperature of the conductors in a plurality of rows can be measured by this measuring step. In the insulated wire manufacturing method, since the measurement step moves the radiation thermometer in the above-mentioned direction, even if a horizontal shake occurs in the conductor, there is a low possibility that the measured values will vary due to the horizontal shake. Therefore, the insulated wire manufacturing method can measure the temperature of the conductor relatively accurately. Further, since the insulated wire manufacturing method can measure the temperatures of the conductors in a plurality of rows with one radiation thermometer, it is possible to reduce the number of radiation thermometers and improve efficiency.

In the present invention, "the shortest distance between the radiation thermometer and the conductors in a plurality of rows is equal" means that the difference between the maximum value and the minimum value of the shortest distance between the radiation thermometer and the conductors in a plurality of rows is that of the radiation thermometer. It is within the focal range, and for example, the difference between the maximum value and the minimum value of the shortest distance between the radiation thermometer and the conductor in a plurality of rows is 10 mm or less, preferably 1 mm or less.

[Details of the embodiment of the present invention]
Hereinafter, one embodiment of an insulated wire manufacturing device and an insulated wire manufacturing method according to the present invention will be described in detail with reference to the drawings.

[First embodiment]
<Insulated wire manufacturing equipment>
The insulated wire manufacturing apparatus of FIGS. 1 and 2 is an insulated wire manufacturing apparatus for forming an insulating coating on a linear conductor X running in the longitudinal direction, and a traveling mechanism for running the conductor X in a plurality of rows. 1, a plurality of coating portions 2 for coating the conductor X of each row with an insulating coating, a plurality of heaters 3 for heating the conductor X coated with the insulating coating by the plurality of coating portions 2, and a plurality of heaters A radiation thermometer 4 for measuring the temperature of the conductor X heated by the heating element 3 and a moving mechanism 5 for moving the radiation thermometer 4 in a direction traversing the conductors X in a plurality of rows. In addition, the insulated wire manufacturing apparatus includes an arithmetic unit 6 that extracts the maximum value of the measured values during the movement of the radiation thermometer 4 as the conductor temperature, and a cooler 7 that cools the conductor X after heating by the heater 3. Further prepare. Although not shown, in the insulated electric wire manufacturing apparatus, the above-mentioned respective constituent elements are supported by a frame formed of, for example, a steel material or the like so that a mutual positional relationship is secured.

The insulated wire manufacturing apparatus is configured to gradually increase the thickness of the insulating coating by applying and baking insulating paint on the conductors X in each row. The insulated wire manufacturing apparatus is configured to repeatedly perform the coating and baking until the insulating coating has a desired thickness. According to the insulated wire manufacturing apparatus, it is possible to form an insulating coating film composed of a plurality of layers having different main components by changing the resin component of the insulating paint in the first half row and the second half row, for example. The number of rows of the insulated electric wire manufacturing apparatus can be, for example, 2 or more and 50 or less.

The insulated wire manufacturing apparatus is provided with one radiation thermometer 4 for measuring the temperature of the conductor X heated by the heater 3, and the moving mechanism 5 moves the radiation thermometer 4 in a direction traversing the conductors X in a plurality of rows. Since the moving mechanism 5 moves the radiation thermometer 4 so that the light receiving surface faces the conductors X in a plurality of rows, the temperature of the conductors X in a plurality of rows can be measured. In the insulated wire manufacturing apparatus, since the radiation thermometer 4 is moved in the above direction by the moving mechanism 5, even if the conductor X is laterally shaken, the lateral shake may cause variations in the measured values. Low. Therefore, the insulated wire manufacturing apparatus can relatively accurately measure the temperatures of the conductors X in a plurality of rows. Further, since the insulated wire manufacturing apparatus can measure the temperatures of the conductors X in a plurality of rows with one radiation thermometer 4, the number of radiation thermometers 4 can be reduced and efficiency can be improved.

(conductor)
The conductor X is not particularly limited, but is, for example, a copper wire, a copper alloy wire, a tin-plated wire, an aluminum wire, an aluminum alloy wire, a steel core aluminum wire, a copper fly wire, a nickel-plated copper wire, a silver-plated copper wire, a copper covering. An aluminum wire etc. are mentioned. The average cross-sectional area of the conductor X is not particularly limited, but is, for example, 0.01 mm ² or more and 10 mm ² or less. The cross-sectional shape of the conductor X is typically circular, but is not particularly limited and may be rectangular, for example.

(Insulating paint)
The main component of the insulating coating material may be a resin having high insulating properties and heat resistance, and examples thereof include polyamide, polyimide, polyamideimide, polyesterimide and the like. The insulating paint may contain a solvent such as N-methyl-2-pyrrolidone or cresol.

(Travel mechanism)
The traveling mechanism 1 has a plurality of pairs of lower carrying sheaves (pulleys) 1a and upper carrying sheaves 1b on which the conductors X are bridged. The traveling mechanism 1 conveys the conductor X from the lower conveying sheave 1a toward the pair of upper conveying sheaves 1b, and from the upper conveying sheet 1b to the next pair of lower conveying sheet 1a. Transport. The conductor X is stretched linearly by tension between the lower transfer sheave 1a and the upper transfer sheave 1b. Preferably, the traveling mechanism 1 conveys the conductor X between the lower transfer sheave 1a and the upper transfer sheave 1b substantially vertically upward. The traveling mechanism 1 stretches the conductor X conveyed from the lower transfer sheave 1a toward the upper transfer sheave 1b so as to be included in one virtual plane (first virtual plane A) parallel to the vertical direction, and The conductor X conveyed from the upper conveyance sheet 1b toward the lower conveyance sheave 1a is stretched so as to be included in another virtual plane (second virtual plane B) parallel to the vertical direction. The traveling mechanism 1 preferably conveys the conductors X in a plurality of rows so as to be parallel in each row. A radiation thermometer 4 described below is arranged so as to traverse a plurality of rows of conductors X on the side opposite to the second virtual plane B with the first virtual plane A as a reference.

The lower limit of the transport speed (linear velocity) of the conductor X by the traveling mechanism 1 is preferably 2 m/min, more preferably 5 m/min. On the other hand, the upper limit of the transport speed of the conductor X by the traveling mechanism 1 is preferably 150 m/min, more preferably 80 m/min. If the transport speed of the conductor X by the traveling mechanism 1 is less than the above lower limit, the productivity of the insulated wire may be insufficient. On the other hand, if the transport speed of the conductor X by the traveling mechanism 1 exceeds the above upper limit, the temperature rising rate at the time of drying and baking the insulating coating becomes too high, and foaming may damage the appearance of the insulated wire.

(Coating part)
The coating section 2 stores the insulating coating material, and the conductor X penetrates from the lower side to the upper side to deposit the insulating coating material on the outer peripheral surface of the conductor X, and the insulating coating material deposited on the outer peripheral surface of the conductor X. And a die 2b for scraping off the excess insulating paint so that the thickness of the die is substantially constant.

<Coating tank>
The coating tank 2a has a through hole whose top is open and whose bottom has a hole diameter and an opening shape that allow the conductor X to pass through without leaking the insulating paint. The through hole may be formed by a replaceable bushing so that the hole diameter and the opening shape can be changed.

Further, the capacity of the coating tank 2a is only required to be able to store the insulating coating material that can be immersed in the insulating coating material without interrupting the conductor X, and is set to, for example, 10 cc or more and 3000 cc or less, although it varies depending on the design of the supply system of the insulating coating material. ..

<dice>
The die 2b has a hole through which the conductor X having the insulating paint adhered to the outer peripheral surface passes, and by determining the outer diameter of the insulating paint by the size of the hole, the average thickness of the insulating paint adhered to the conductor X can be determined. adjust. That is, the die 2b removes excess insulating paint from the outer peripheral surface of the conductor X. Further, as the die 2b, one having an inner surface formed into a conical surface and having an effect of making the film thickness constant in the circumferential direction by automatically aligning the conductor X by the wedge film effect is preferably used. The die 2b having such an aligning effect is preferably movably arranged so as to move at least in a direction orthogonal to the traveling direction of the conductor X according to the misalignment of the conductor X.

(Heater)
The heater 3 vaporizes the solvent contained in the insulating coating applied by the coating unit 2 and burns the insulating coating on the outer peripheral surface of the conductor X. The specific configuration of the heater 3 is not particularly limited, and examples thereof include a configuration of heating by hot air heating, infrared heating, induction heating, or the like.

The lower limit of the temperature of the conductor X during heating by the heater 3 is preferably 50° C., more preferably 100° C., although it depends on the components of the insulating paint. On the other hand, the upper limit of the temperature of the conductor X during heating is preferably 550°C, more preferably 400°C. If the temperature of the conductor X at the time of heating is less than the above lower limit, the insulating paint may not be sufficiently cured. On the contrary, if the temperature of the conductor X during heating exceeds the upper limit, the conductor X may be damaged by heat.

(Radiation thermometer)
The radiation thermometer 4 is arranged so that the light-receiving surface thereof faces the conductors X of each row when moved by a moving mechanism 5 described later so that the temperature of the conductors X in each row can be measured during or after heating. It That is, the radiation thermometer 4 is arranged so that the measurement direction in the moving state is orthogonal to the above-mentioned first virtual plane. The radiation thermometer 4 is configured to constantly measure the temperature.

(Movement mechanism)
The moving mechanism 5 reciprocates the radiation thermometer 4 so as to traverse the conductors X in each row. The moving mechanism 5 is configured to move the radiation thermometer to a virtual plane parallel to the first virtual plane. Specifically, the moving mechanism 5 is configured to reciprocate the radiation thermometer 4 in the X direction in FIGS. 1 and 2. In addition, the moving mechanism 5 makes the shortest distance between the radiation thermometer 4 and the conductor X in each row equal during movement (specifically, the shortest distance between the light-receiving surface of the radiation thermometer 4 and the conductor X in each row). The radiation thermometer 4 is configured to be movable. The insulated electric wire manufacturing apparatus can more accurately measure the temperature of the conductor X in each row because the radiation thermometer 4 and the conductor X in each row are equal in minimum distance during movement. The reciprocating direction of the moving mechanism 5 is not particularly limited as long as the radiation thermometer 4 can be moved back and forth so as to traverse the conductors X in each row. However, the moving mechanism 5 preferably moves the radiation thermometers 4 back and forth in a direction perpendicular to the traveling direction of the conductors X in each row so that the radiation thermometers 4 can measure the temperature of the conductor X at the same position in each row. ..

The moving mechanism 5 moves one radiation thermometer 4 so as to traverse the conductors X in all the rows. In the insulated wire manufacturing apparatus, one radiation thermometer 4 can measure the temperature of the conductors X of all the rows by traversing the conductors X of all the rows, so that the equipment cost can be suppressed. Efficiency can be promoted.

The moving mechanism 5 is not particularly limited in its specific configuration as long as it can move the radiation thermometer 4 so as to traverse a plurality of rows of conductors X. A specific configuration of the moving mechanism 5 includes, for example, a belt, a motor for driving the belt, a through hole through which a pair of shafts are inserted, and a radiation thermometer support that can move in the axial direction of the shaft in accordance with rotation of the belt. It is possible to exemplify a structure in which the radiation thermometer 4 is attached to the radiation thermometer support tool.

The moving speed of the radiation thermometer 4 by the moving mechanism 5 may be a speed change, but is preferably a constant speed. The moving speed of the radiation thermometer 4 by the moving mechanism 5 is within a range in which the response speed of the radiation thermometer 4 can be supported, and the radiation thermometer 4 can measure the maximum value of the temperature of the conductor X in each row. The fastest is preferable. Specifically, the moving speed may be, for example, about 10 m/min or more and 50 m/min or less.

(Calculator)
The arithmetic unit 6 is composed of, for example, a CPU. As described above, the insulated wire manufacturing apparatus moves so that the radiation thermometer 4 constantly measures the temperature and traverses the conductor X in each row. Therefore, the measurement value of the radiation thermometer 4 takes a maximum value when the distance from the conductor X in one row becomes the minimum, and the distance from the conductor X in the row adjacent to this row becomes the minimum. Takes a local maximum at this point. That is, in the insulated wire manufacturing apparatus, the temperature of the conductor X in each row is obtained as the maximum value corresponding to each row in the measurement value of the radiation thermometer 4. Therefore, the insulated wire manufacturing apparatus includes the arithmetic unit 6 that extracts the maximum value of the measured values during the movement of the radiation thermometer 4 as the conductor temperature, thereby easily and reliably measuring the temperature of the conductor X in each row. be able to.

(Cooler)
The cooler 7 cools the conductor X after being heated by the heater 3. The specific configuration of the cooler 7 is not particularly limited, and examples thereof include a configuration of cooling by water cooling, air cooling, or the like.

As a lower limit of the temperature of the conductor X after being cooled by the cooler 7, 50° C. is preferable, and 70° C. is more preferable. On the other hand, the upper limit of the temperature of the conductor X after the cooling is preferably 200° C., and more preferably 150° C., though it depends on the components of the insulating paint. If the temperature of the conductor X after the cooling is lower than the lower limit, the energy efficiency may decrease, and the cooler 7 may become larger than necessary. On the other hand, if the temperature of the conductor X after cooling exceeds the upper limit, it may be difficult to apply further insulating coating material.

<Insulated wire manufacturing method>
Next, the insulated wire manufacturing method according to the present invention will be described. The insulated wire manufacturing method can be performed using the insulated wire manufacturing apparatus of FIGS. 1 and 2, for example. Therefore, below, the case where the said insulated wire manufacturing apparatus is used is demonstrated.

The insulated wire manufacturing method is a method for manufacturing an insulated wire in which an insulating coating is formed on a linear conductor X that runs in the longitudinal direction. The method includes a running step of running the conductor X in a plurality of rows, and a running step of each row. A coating step of applying the insulating coating material to the conductor X, a heating step of heating the conductor X coated with the insulating coating material by the coating step, and a temperature of the conductor X heated by the heating step is measured by the radiation thermometer 4. And a measuring step to perform. In the measuring step, the radiation thermometer 4 is moved in a direction traversing the conductors X in a plurality of rows. The insulated wire manufacturing method further includes an extraction step of extracting the maximum value of the measured values of the radiation thermometer 4 in the measurement step as a conductor temperature, and a cooling step of cooling the conductor X after heating in the heating step. ..

The insulated wire manufacturing method includes a measurement step of measuring the temperature of the conductor X heated by the heating step with the radiation thermometer 4, and the measurement step is performed in the direction in which the radiation thermometer 4 crosses the conductors X in a plurality of rows. Since it is moved, the temperature of the conductors X in a plurality of rows can be measured by this measuring step. In the insulated wire manufacturing method, since the measurement step moves the radiation thermometer 4 in the direction, even if the conductor X is laterally shaken, the lateral shake may cause variations in the measured values. Low. Therefore, the insulated wire manufacturing method can measure the temperatures of the conductors X in a plurality of rows relatively accurately. Further, since the insulated wire manufacturing method can measure the temperatures of the conductors X in a plurality of rows with one radiation thermometer 4, the number of the radiation thermometers 4 can be reduced to improve efficiency.

(Running process)
The traveling process is performed by the traveling mechanism 1. In the traveling step, the conductor X is transported from the lower transport sheave 1a toward the pair of upper transport sheaves 1b, and the conductor X is transported from the upper transport sheet 1b to the next pair of lower transport sheet 1a. Transport. In the traveling step, the conductor X is conveyed between the lower transfer sheave 1a and the upper transfer sheave 1b in a state of being stretched linearly by tension, preferably in a state of being stretched substantially vertically. In the traveling step, it is preferable to convey the conductors X in a plurality of rows so as to be parallel in each row.

(Coating process)
The coating process is performed by the coating unit 2. In the coating step, the conductor X is penetrated through the through hole of the coating tank 2a, the outer peripheral surface of the conductor X is coated with the insulating coating, and then the conductor X is passed through the hole of the die 2b to reduce the outer diameter of the insulating coating. Then, the average thickness of the insulating paint attached to the conductor X is adjusted.

(Heating process)
The heating step is performed by the heater 3. In the heating step, by heating the conductor X after the applying step, the solvent contained in the insulating paint is vaporized and the insulating paint is baked on the outer peripheral surface of the conductor X.

(Measuring process)
The measurement step is performed by the radiation thermometer 4 and the moving mechanism 5. In the measurement step, the radiation thermometer 4 constantly moves the radiation thermometer 4 while the radiation thermometer 4 is reciprocated by the moving mechanism 5 so as to traverse the conductors X in each row.

(Extraction process)
The extraction process is performed by the arithmetic unit 6. In the extraction step, the maximum value of the temperature measured in the measurement step is extracted as the temperature of the conductor X in each row. The temperature of the conductor X extracted in the extraction step is used for controlling the heating temperature by the heater 3, for example.

(Cooling process)
The cooling process is performed by the cooler 7.

[Other Embodiments]
The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is not limited to the configurations of the above-described embodiments, but is shown by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope. It

For example, it is preferable that the insulated wire manufacturing apparatus uses only one radiation thermometer to measure the temperatures of the conductors of all the rows in terms of efficiency, but the conductors of all the rows are measured by two or more radiation thermometers. The temperature of may be measured. Moreover, the said insulated wire manufacturing apparatus does not necessarily need to measure the temperature of the conductor of all the rows by 1 or several radiation thermometer. The insulated wire manufacturing apparatus may measure the conductor temperature using, for example, a thermometer different from the radiation thermometer of the present invention in some rows, and may not measure the conductor temperature in some rows. May be.

The insulated wire manufacturing apparatus does not necessarily need to measure the conductor temperature before cooling with a radiation thermometer, but may measure the conductor temperature after cooling or may measure the conductor temperature after passing through the upper transfer sheave. .. Furthermore, the insulated wire manufacturing apparatus may measure the conductor temperatures at a plurality of positions in each row, such as before cooling and after cooling. In this case, the conductor temperature at each location is preferably measured by one or a plurality of radiation thermometers that are moved by the moving mechanism, but the conductor temperature at at least one location is measured by one or a plurality of radiation thermometers that are moved by the moving mechanism. Just measure.

It is preferable that the insulated wire manufacturing apparatus has the same shortest distance between the radiation thermometer and the conductor in each row during movement as described above, but even if the shortest distance between the radiation thermometer and the conductor in each row is different, Since the radiation thermometer moves in the direction traversing the conductor, it is possible to measure the conductor temperatures in a plurality of rows while suppressing the variation in the measured values due to the lateral movement of the conductor.

The insulated wire manufacturing apparatus does not necessarily have to include the above-described arithmetic unit. Moreover, the said insulated wire manufacturing apparatus does not necessarily need to be equipped with the said cooler.

The insulated wire manufacturing apparatus may further include a control unit that adjusts the heating temperature by the heaters in the plurality of rows based on the conductor temperatures in the plurality of rows extracted by the arithmetic device. Further, the insulated wire manufacturing apparatus may further include a control step of adjusting the heating temperature by the heaters of a plurality of rows based on the conductor temperatures of a plurality of rows extracted in the extraction step.

In the above-described first embodiment, the insulated electric wire manufacturing apparatus includes a plurality of coating portions that apply the insulating coating material to the conductors in each row, and a plurality of heaters that heat the conductor coated with the insulating coating material by the plurality of coating portions. The configuration having the above has been described. However, the insulated wire manufacturing apparatus according to the present invention may be configured such that one coating unit applies the insulating coating material to the conductors in a plurality of rows, and one heater is configured to heat the conductors in a plurality of rows. May be done. That is, the insulated wire manufacturing apparatus can adopt a configuration having one coating unit or a configuration having one heater.

INDUSTRIAL APPLICABILITY Since the insulated wire manufacturing apparatus and the insulated wire manufacturing method according to the present invention can measure the temperature of the conductor relatively accurately and efficiently, the insulated wire manufacturing apparatus and the insulated wire manufacturing method are suitable as a manufacturing apparatus and a manufacturing method of an insulated wire having less variation in quality. ..

1 Traveling Mechanism 1a Lower Transport Sheave 1b Upper Transport Sheave 2 Coating Section 2a Coating Tank 2b Dice 3 Heater 4 Radiation Thermometer 5 Moving Mechanism 6 Computing Device 7 Cooler X Conductor A First Virtual Plane B Second Virtual Plane

Claims (6)

An insulated wire manufacturing apparatus for forming an insulating coating on a linear conductor traveling in the longitudinal direction,
A traveling mechanism that allows the conductors to travel in a plurality of rows,
One or a plurality of coating parts for coating the conductors in each row with insulating paint;
One or a plurality of heaters for heating the conductor coated with the insulating paint by the one or a plurality of coating parts;
One or a plurality of radiation thermometer measures the temperature of the heated conductor by the one or more pressure heat sink,
A moving mechanism for moving the one or more radiation thermometers in a direction traversing the plurality of rows of conductors ,
An insulated wire manufacturing apparatus in which the conductor is stretched by tension by the traveling mechanism, and the one or more radiation thermometers move in a direction in which the conductor laterally shakes . The insulated wire manufacturing apparatus according to claim 1, wherein the shortest distance between the one or more radiation thermometers and the plurality of rows of conductors during movement is equal. The insulated wire manufacturing apparatus according to claim 1 or 2, further comprising a calculation device that extracts a maximum value of measured values during movement of the one or more radiation thermometers as a conductor temperature. The insulated wire manufacturing apparatus according to claim 1, 2 or 3, wherein one radiation thermometer measures the temperature of the conductors in the plurality of rows. Insulated wire manufacturing apparatus according to any one of claims 1 to 4, one of the radiation thermometer traverses the conductors of all columns. A method for producing an insulated wire, comprising forming an insulating coating on a linear conductor traveling in the longitudinal direction,
A traveling step in which the conductor is arranged in a plurality of rows,
An application process of applying insulating paint to each row of conductors,
A heating step of heating the conductor coated with the insulating coating by the coating step,
And a measurement step of measuring the temperature of the conductor heated by the heating step with a radiation thermometer,
In the measuring step, the radiation thermometer is moved in a direction traversing the plurality of rows of conductors ,
A method for producing an insulated wire, wherein the conductor is stretched by tension in the running step, and the one or more radiation thermometers are moved in a direction in which the conductor is laterally shaken in the measuring step .

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