JPH0361333A - Heating temperature regulator for traveling wire body - Google Patents

Abstract

PURPOSE:To accurately regulate the temp. of a traveling wire body in a short period of time by compensating the deviation in the zero point in the input characteristics of a heating means and controlling a means for regulating electric energy at the point of the time when a line speed is changed. CONSTITUTION:The temp. before heating of the wire body W is measured by a temp. detecting section 33 and is inputted to a control section 13. The heating temp. of the wire body W is inputted from a setter to the control section 13. An output setting volume control 14a is regulated after the control section 13 starts operating. The control section 13 reads the voltage of the output setting volume control, output voltage, output current and line speed voltage therein and determines a reference electric power from these values. The output setting volume control 14a is regulated again to determine the true temp. before heating when the temp. before heating, etc., change. The control section 13 substitutes the previously stored voltage of the setting volume control, reference output voltage, reference output current and reference line speed voltage with the present values and determines the fresh reference electric power.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a heating temperature adjustment device for a running filament body that controls the heating of a filament body such as an electric wire or wire in a vulcanization process, and particularly relates to a heating temperature adjustment device for a running filament body that controls the heating of a filament body such as an electric wire or wire in a vulcanization process. The present invention relates to a heating temperature adjustment device for a traveling linear body, which aims to automate the process, shorten control time, and improve heating accuracy.

``Prior art'' On an electric wire production line, a running filament (running filament, that is, an electric wire, wire wire) is heated to a suitable temperature for processing, etc. for pretreatment of the vulcanization process of coated insulation. (or preheating). In this case, as a heating means for the running filament, an induction heating method as shown in Fig. 3 or a so-called electric heating method in which the running filament is directly heated by electricity are used for ease of control. .

Here, with reference to FIG. 3, a conventional example of heating technology for a traveling linear body using an induction heating device will be described.

When the traveling striated body RW travels as shown by arrow A, the induction heating device 1 is operated (energized to the heating coil) while maintaining a non-contact state with respect to the traveling striated body RW. While the linear body RW is heated by induction, the contact roller 2a in the linear velocity detection section 2
The linear motion of is converted into rotational motion and the tacho generator 2
b is rotated, and the voltage generated by this (linear velocity voltage)
is supplied to the power 11M adjustment section 3 via the route amplifier 9,
A proportional relationship is established between the linear velocity voltage and the amount of electric power of the induction heating device 1. Then, the temperature of the running filament body RW is detected by a temperature detector (using a thermocouple) 4 at a position spaced apart from the induction heating device l in the running direction of the filament body RW,
The temperature is displayed on the temperature display meter 5.

Here, the power amount adjustment unit 3 described above includes a forward conversion thyristor 6 for converting alternating current into direct current, an inverse conversion thyristor 7 for converting direct current into a high frequency of about 1 OKHz, and a buffer 8 from the tacho generator 2b. A root amplifier 9 for calculating the square root value of voltage data supplied through the thyristor 6 to obtain square root data, and the root amplifier 9 and both thyristors 6.
・A gate control amplifier 10 interposed between the gate control amplifier 7 and the gate control amplifier 1 to adjust the output;
a volume 11 for adjusting the input signal to 0 based on the temperature displayed on the temperature display meter 5; and a matching device for matching the input impedance of the induction heating device l and the output impedance of the power amount adjustment section 3. It is composed of a container 12.

In addition, an induction heating device in an electric circuit as shown in Fig.
The amount of electric power (W) is given by the formula of W=I''R=E by the ohm diagonal, where I is the supplied current, R is the apparent resistance of the heating coil, and E is the applied voltage of the heating coil. ''/R. If the amount of heat generated by the induction heating device 1 and the amount of temperature rise of the running linear body RW are in a proportional relationship, then when the linear velocity of the running linear body RW fluctuates, the square root data of the variation is obtained. By adjusting the current proportional to
The amount of heating per unit length in the same striatum RW is kept constant,
A stable amount of heat can be applied. As an additional note, the range affected by the heating coil is independent of the linear velocity of the running linear body RW, and if the linear velocity increases, it can be dealt with by increasing the amount of electric power W in proportion to this. becomes.

"Problem to be Solved by the Invention" By the way, the above-mentioned induction heating device usually does not have accurate linearity in its input/output characteristics and has zero point deviation, so the running linear body RW When the linear velocity of the running linear body RW is changed or fluctuated, the amount of heating is not proportional to the linear velocity, and the temperature of the running linear body RW changes.

In addition, when heating a traveling linear body of a split conductor made by wrapping a semiconductive tape around each of multiple conductors and twisting each conductor, the filament passes through the induction heating device 1 while rotating. Therefore, the amount of electricity changes naturally, and the temperature of the striatum changes.

In addition, in actual production lines, it is necessary to keep the electrical properties of the insulator coated on the running wire bodies constant, so when changing the linear speed, it is also necessary to change the heating temperature at the same time. . In this case, manual adjustment was required, resulting in poor work efficiency.

Furthermore, since a thermocouple is used as the temperature detector 4, it is necessary to place the detector 4 apart from the induction heating device (2). For this reason, when performing feedback control based on the temperature of the traveling linear body RW, a time delay occurs in temperature detection. Therefore, it is difficult to achieve accurate control using feedback control. By the way, in addition to using thermocouples, there are radiation thermometers that detect infrared rays, but these are effective when measuring the temperature of a conductor wrapped with semiconducting tape because the same tape has a high emissivity. It has the advantage of being able to be measured. However, bare wires made of aluminum or copper have a very low emissivity, making it difficult to measure accurately. In this way, in reality, when detecting and controlling the temperature of the traveling striatal body RW, accurate control cannot be expected;
Moreover, even if this control is performed, quick control is not possible.

This invention has been made in view of the above-mentioned circumstances, and is capable of controlling the temperature of a traveling linear body in a short time and with high accuracy without being affected by non-linearity and zero point shift in the input/output characteristics of electric heating means. It is an object of the present invention to provide a heating temperature adjusting device for a traveling linear body that can be adjusted and further automatically perform the adjustment.

``Means for Solving the Problems'' In order to achieve the dual objects, the present invention provides linear velocity detection means for detecting the linear velocity of a running filament heated by an electrical heating means; In a heating temperature adjustment device for a traveling Striated body, which is equipped with a temperature detection means for detecting the temperature of the Striated body, the temperature of the electric heating means is adjusted based on a supplied signal or a set value of a setting device of the running Striated body. A power 11ff adjusting means for adjusting the electric power amount, a compensating means for compensating for a zero point shift in the input/output characteristics of the electric heating means, and an output voltage and an output current of the electric power adjusting means are detected, and the detection results are detected. A voltage/current detection means to output, a data input means for setting the linear velocity and temperature of the running linear body, and linear velocity data output from the linear velocity detection means and output from the voltage/current detection means. control means for driving the power amount adjusting means based on the voltage data and current data set by the data input means and the temperature data set by the data input means, the control means driving the linear velocity of the traveling linear body or Electric power obtained based on the voltage data and the current data at the time when the setting value of the setting device is changed, and the voltage data and current immediately after the heating of the traveling striated body is started or immediately after the setting device is readjusted. The power amount adjusting means is characterized in that the power amount adjusting means is controlled so that the difference between the reference power and the reference power obtained based on the data falls within a predetermined range.

Further, the control means may be provided with a temperature setting function that can arbitrarily set a temperature necessary for the linear velocity set by the data input means.

"Function" According to the present invention, a compensation means is provided for compensating for zero point deviation in the input/output characteristics of the electric heating means, and further, the reference electric power immediately after heating the traveling linear body or immediately after readjusting the setting device, When the linear speed of the traveling linear body changes or fluctuates, when the setting device is adjusted, and when the power at the time of load fluctuation occurs, the difference is within a predetermined range (for example, within 5%). ) By controlling the power ff1l adjustment means, the temperature can be automatically changed in accordance with the linear velocity in a short time and with high precision by simply setting the temperature first. In this case, temperature fluctuations due to zero point shift and nonlinearity in the input/output characteristics of the electrical heating means, and temperature fluctuations due to load fluctuations when applied to a divided conductor, hardly occur.

In addition, since the control means is equipped with a temperature setting function that can arbitrarily set the necessary temperature for the linear velocity set by the data input means, the running linear speed can be adjusted in a shorter time compared to manual temperature adjustment using a setting device. You can set your body temperature.

"Embodiments" Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a functional block diagram showing a heating temperature adjusting device for a traveling linear body (hereinafter referred to as the adjusting device), which is an embodiment of the present invention. In this embodiment, the same parts as in FIG. 3 described above are designated by the same reference numerals, and the explanation thereof will be omitted.

In this figure, reference numeral 13 is a control section that controls each section of the adjustment device and performs various calculations. This control section 13 is
It is configured with a CPU (central processing unit), a ROM (read only memory), a RAM (random access memory), an interface circuit, etc. (not shown). ROM
A program for controlling the CPU and an arithmetic processing program are written in the . Reference numeral 14 denotes a power amount adjustment section that adjusts the amount of heat generated by the induction heating section l. This power amount adjustment section 14 is provided with an output setting volume 14a,
By turning on the switch 17 shown in the figure, direct manual output adjustment is possible. Note that manual adjustment is normally used during maintenance and inspection. This power adjustment section 14 also has a function of outputting an output voltage VO (voltage data) and an output current AO (current data) to the outside. These manual output adjustments and
Other than the function of outputting the output voltage vO and the output current AO, it has the same functions as the power amount adjusting section 3 shown in FIG. 3 described above. Output setting volume 14 of power amount adjustment section 14
The setting volume voltage VSM set by a is applied to the setting signal input terminal I of the control section 13 via the insulation converter 18.
+ and is also supplied to one input terminal of the multiplier 19.

Next, 16 is a voltage/current detector that detects each of the output voltage VO and output current AO output from the power amount adjustment section 14.The output voltage VO detected by this voltage/current detector 16 is as follows. The detected output current AO is supplied to the DC voltage input terminal IN3 of the control section 13 via the isolation converter 20. The multiplier 19 described above uses the set volume voltage VSM set by the output setting volume 14a and the square root data (kXp, k: constant, v: linear velocity voltage) output from the root amplifier 9. Multiply and output. This multiplication result (kx5
x v S M ) is supplied to one input terminal of the multiplier 22 . The multiplier 22 multiplies the multiplication result supplied from the multiplier 19 by the control signal C supplied from the control signal output terminal OUT of the control section 13, and outputs this multiplication result (actuation signal).

Here, the actuation signal output from the multiplier 22 is as follows.

kxFxvSM×C...■ Next, 23 is an isolated converter with a bias setting function, and an external bias setting device (variable resistor) 24 adds an arbitrary bias voltage VB to the input signal. do.

In this case, the bias voltage VB is added to the actuation signal (shown in equation (2)) output from the multiplier 22. Here, the reason why the bias voltage VB is added to the actuation signal is as follows. That is, the input/output characteristic of the induction heating device 1 is because the zero point is shifted from the ideal input/output characteristic in most cases. This zero point shift is determined by the bias voltage V
Compensate by adding B.

The actuation signal output from the above-mentioned isolation converter 23 is as follows.

y=kx, /VxvsMxc+vB-.-O The input signal is limited and output. This analog limiter 25 prevents an excessive input signal from being supplied to the gate control amplifier IO. Reference numeral 26 denotes a switch that can be controlled from the outside, and its opening and closing are controlled by the control unit 13 by setting a select switch (not shown) to "auto".

Next, the linear velocity voltage V output from the tacho generator 2b is applied to the linear velocity input terminal IN of the control section 13.

It is also supplied to the lowest linear velocity detection section 27 . The minimum linear velocity detection unit 27 includes a comparator 28, a relay 29, etc., and detects when the linear velocity of the traveling linear body RW becomes equal to or lower than the minimum velocity based on the linear velocity voltage V.
The detection signal is supplied to the interlock input terminal IN of the control section 13. In this case, when the control unit 13 receives the detection signal, it turns off the adjustment. Reference numeral 31 denotes a control start switch, and when turned on, the control section 13 starts control. 32 is a data input section, and a proportional band 32a1
The start step setting device 32b1 is configured with a first step setter 32b1, a first step setter 32b1, and a first step setter 32b1. In this case, the details will be described later, but the proportional band 32
a is for inputting a proportionality constant used for calculation in the control section 13, and is used for start step setting i53.
2b is used to set the pre-heating temperature and heating temperature of the traveling filament W.

1st. The second step setters 32c and 32d each designate a speed change of the traveling linear body RW, and designate the temperature when the designated linear speed is reached. 33 is a temperature detection unit for detecting the temperature of the running linear body RW, and displays the detected temperature on a display (not shown).

Next, the operation of the adjustment device having the above configuration will be explained.

(1) After turning on the power switch (not shown) of the adjustment device, the traveling linear body RW reaches the linear velocity V. While moving, set the output setting volume 14a to the minimum setting position. Next, the temperature detection unit 33 is activated, and the traveling striated body W
, that is, the pre-heating temperature T, is measured, and the temperature T
1 is input from the start step setter 32b to the control unit 13 and stored. Next, the desired heating temperature, that is, the heating temperature T of the running linear body W, is inputted to the control unit 13 from the start step setting device 32b and is stored.

After storing the pre-heating temperature T and the heating temperature T, the select switch is turned on, and then the control start switch 31 is turned on.

In this case, when the select switch is turned on,
The control unit 13 turns on the switch 26, and when the control start switch 31 is turned on, the control unit 13 turns on.
starts the control action. After the control unit 31 starts the control operation, the output horn setting volume 1 is adjusted so that the temperature of the traveling striated body RW becomes the same as the heating temperature T previously stored.
Adjust 4a.

In this case, adjustment is performed based on the temperature display of the temperature detection section 33.

When the control start switch 31 is turned on and the control start signal is supplied, the control unit 13 operates for a preset period from this point until the adjustment by the output setting volume 14a is completed and the output is stabilized. (e.g. 1
5 minutes), signals from each input terminal are not read.

Immediately after a predetermined period of time has elapsed, the output setting volume voltage VSM is sequentially applied from the setting signal input terminal IN, DC voltage input terminal IN, DC current input terminal lNff, and linear velocity input terminal IN.
, output voltage VO1, output current AO1, and linear velocity voltage V are read. Then, each of these is stored as a reference output setting volume voltage VSMb, a reference output voltage vob, a reference output current AOb, and a reference linear velocity voltage vb. Then, reference power Pb is obtained from the product of reference output voltage VOb and reference output current AOb. The control unit 13 also receives a reference control signal cb.
A fixed value (for example, DC tV) is automatically given as follows. Further, the stored pre-heating temperature T1 is set as a reference pre-heating temperature Tb, and the heating temperature T is set as a reference heating temperature Tb.

Each of the reference values described above becomes a reference value for subsequent control.

Here, if the pre-heating temperature TI at the time of initial measurement changes thereafter, it is necessary to readjust the output setting volume 14a so that the temperature of the traveling linear body RW matches the set value. To this 凰 Mountain + 1 Bath - N ++
The control unit 13 automatically determines the true pre-heating temperature T from the amount of change in the set volume voltage.
, is calculated based on the following formula.

(True)T,) -T, -(Tb, -Tb,)X(JS
M/VSMb)'... ■ Note that the symbol VSM is the set volume voltage at the current moment (after adjustment).

Then, the control unit 13 stores the true pre-heating temperature T obtained from equation (2) as the reference pre-heating temperature Tb+, and further stores the previously stored reference setting volume voltage VSMb, reference output voltage vob, and reference output The current Aob and the reference linear velocity voltage vb are also replaced with their current values. Further, a new reference power Pb is obtained from the product of the replaced reference output voltage VOb and the reference output current AOb. In this case, the running striatum R
Since the linear velocity of W is not changed, the reference linear velocity voltage v
b remains the same as the initial value.

In this way, the control unit 13 controls the output setting volume 14ah
<i Every time the adjustment is made, the setting volume voltage VSM - output voltage 1
``TV(')-output current AO-m speed converter V, pre-heating temperature T1 and power P are each replaced with new values, and these are re-stored as reference values.

Now, after the heating temperature T is set by the output setting volume 14 a, the setting volume signal VSM is supplied to one end of the multiplier 19 and also to the setting signal input terminal of the control section 13 . The set volume voltage VSM supplied to one end of the multiplier 19 is multiplied by the linear velocity voltage V supplied to the other end, and the result of the multiplication is further multiplied by the control signal C in the multiplier 22. Then, the signal (kx/V x v S M X C) + output from the multiplier 22:
Bias voltage VB is added by isolation converter 23,
It is supplied as an actuation signal Y to the gate control amplifier 10 via the analog limiter 25. As a result, the induction heating device 1 is driven, and the operating signal Y at this time is
The formula becomes as follows.

y=kxpxvsMxc+vB-.-■ After that, unless the output setting volume 14a is changed or the linear velocity is changed, the temperature of the traveling linear body RW is maintained at the heating temperature T. Note that normally, after the temperature of the running linear body RW is set to the heating temperature T, the output setting volume 14a is not adjusted.

Here, if the linear velocity voltage changes by ΔV due to a change in linear velocity ΔV, the control unit 13 controls the heating temperature T! The control signal C is optimized so that the That is, a change in the linear velocity voltage is detected, the power at the time of this change (output voltage VOX output current AO) is compared with the reference power pb, and the difference is within a predetermined range (for example, ±5%). If it is not within the range, the power adjustment unit 14 is controlled so as to enter the range. At this time, changes in the heating temperature T due to non-linearity of the input/output characteristics of the induction heating device 1 are also corrected at the same time. Further, load fluctuations due to divided conductors are also corrected.

Now, when the linear velocity changes by ΔV from vo to V and the linear velocity voltage changes from V to vl, the control unit 13 memorizes the reference output voltage vob, the reference output current AOb, and the reference linear velocity voltage. vb, reference output setting volume voltage VSMb
, the current linear velocity voltage V and the set volume voltage VSM
The ideal power pt is determined from the following formula based on .

Pt= (SM/SMb)”X VObX AObX
(L/Vb)...■ In this case, the output setting volume 15 is not adjusted, so VSM/VSMb in equation (2) becomes 1. Therefore, the ideal power pt is as follows.

Pt=vObxAOb×(vl/■b)・・・・・・
(2) Then, the power P is determined from the current output voltage VO and the output current AO, and the difference ε between it and the previously determined ideal power pt is determined.

ε=P-Pt...■ Next, after finding the difference ε, the calculation shown in the following equation is performed to optimize the control signal C. In this case, the current control signal is changed to Cn
, the new control signal is Cn+.

Cn+ += Cn±(Iε15°nKp (Kp is a proportional band)...■ In this case, when ε>0, the sign is -, and when ε<0, the sign is 10.

In this way, the control unit 13 compares the power at the time when the linear velocity changes with the reference power Pb, optimizes the control signal C so that the difference is within a predetermined range, and Controls the adjustment section I4. This control is also corrected for nonlinearity in the input/output characteristics of the induction heating device 1 and for load fluctuations due to the divided conductors. Thus, the temperature of the traveling filament body RW is always maintained at the heating temperature T. Note that even when the setting volume 14a is changed, the control unit 13 performs the above-mentioned
It is clear that the control signal C can be optimized by performing the calculation of equation (2).

In this way, by first adjusting the setting volume 14a while checking the temperature display of the temperature detection section 33, the difference between the electric power at the time of the change and the reference electric power pb will always be the same as the linear velocity changes. The control signal C is optimized so that it falls within the range of . In this case, the heating temperature Tt of the running striated body RW
Even if there is a nonlinear part in the input/output characteristics of the induction heating device l, @-r, -f5e*r, -Bner step 1 step -
Since feedback control is not based on the temperature of Kinner-4'Rtla winter kRW, there is little decrease in accuracy due to a delay in temperature detection time.

(II) Next, the manufacturing conditions of the vulcanization process may change and the linear speed may be changed. In this case, when the linear speed is changed, the temperature of the traveling linear body RW is also changed accordingly. In such a case, the linear velocity to be changed and the temperature after the change are input in advance from the data input section 32 and stored in the control section 13. In addition. In this case, if the temperature of the traveling filament RW is rapidly raised to a high temperature, over-crosslinking (overcure) will occur, so the temperature is gradually increased. For example, the linear velocity of the running striatum RW is V. When changing from V to V, the linear velocity is V, as shown in Figure 2. −+V, −1=y
, and gradually increase the temperature to T t-T t I-
I'm going to raise it to T t t.

First, the pre-heating temperature T and the heating temperature T are input into the control section 13 using the start step setting device 32b, and then the first step setting device 32c inputs the pre-heating temperature T and the heating temperature T into the control section 13.
3, the linear velocity V and the temperature T□ at that time are inputted, and then the linear velocity V and the temperature Ttt at that time are inputted to the control section 13 by the second step setter 32d.

After setting in this way, the control unit 13 performs the following calculation, changes the control signal C every time the linear velocity changes, and automatically changes the temperature of the running linear body RW. Note that Cn shown below is the value before the change, and Cn++ is the value after the change.

First, when changing from the start step to the first step, Cn+I = CnX((Tz I-Tb)/(Tt-T
b))'-=... Perform the following calculation to obtain the control signal Cn+.

Next, when changing from the first step to the second step, Cn+1CnX((Ty2Tb)/(Tzt Tb)
)'・=...@) is performed to obtain the control signal Cn++.

Next, when changing from the second step to the first step, Cn4 +□CnX((Tzt-Tb)/(Tzt-T
b))"・"■ Performs the calculation to obtain the control signal Cn-1.
Find -+.

On the other hand, when changing from the first step to the start step, Cn+,=Cnx((Tt-Tb)/(Tzt-Tb)
)"""' @ Performs the operation.

In this way, since the desired linear velocity and the temperature at which the linear velocity is to be changed can be digitally input using the first step setter 32c and the second step setter 32d, the temperature setting operation using the setting volume 14a can be easily performed. Accurate temperature settings can be made in a shorter amount of time.

Note that the transition to each step is based on the speed setting value V l * V
This is done at a speed slightly lower than t. Further, the return of each step is performed at a slightly lower linear velocity. This can prevent the heating temperature from being changed to a predetermined value and hunting at the transition point due to a linear velocity setting error. In addition, the current value at the time when the step transition and return are completed is set as the new reference control signal Cb1 reference linear velocity voltage vb.
, a reference output voltage vob, a reference output current AOb, and a reference output setting volume voltage VSMb. The reference pre-heating temperature Tb remains the same as before unless the output setting polycomb 14a is readjusted, and the reference heating temperature Tbt is set to the new value after the change.

In addition, when the pre-heating temperature changes in the first step and the second step, if the output setting volume 14a is readjusted, (true TI) is calculated using the formula Let the temperature be Tb.

Also, in the formula (2), in the first step, T.

is replaced by Tzt, and in the second step T is replaced by Tt2. Further, in the first step and the second step, the temperature can be changed by changing the setting of Ttl or Tt.

In the above embodiments, an induction heating method is used as the electric heating means, but the invention is not limited to this, and for example, a resistance heating method by directly applying electricity to the filamentary body can be applied.

Further, in the above embodiment, the data input section 32 is provided with only up to the second step setter, but the number is not limited to this.

Further, in the above embodiment, the control section 13 is dedicated to this adjustment device, but it can also be replaced with a commonly used microcomputer. This makes it easy to change the program, increasing the flexibility of inputting the target temperature and inputting the amount of heat given to the running linear body RW (the amount of heat generated by the induction heating device 1), thereby increasing the range of applications. I can do it.

"Effects of the Invention" As explained above, according to the heating temperature adjustment device for a running linear body according to the present invention, a compensating means for compensating for zero point shift in the input/output characteristics of the electric heating means is provided, and furthermore, the heating temperature adjustment device for a running linear body according to the present invention The reference power immediately after heating the setter or readjusting the setting device, and the power at the time when the linear velocity of the running linear body changes or fluctuates, when the setting device is adjusted, or when a load change occurs. The power adjustment means is controlled so that the difference is within a predetermined range, so by simply setting the temperature first, the temperature can be automatically changed according to the linear velocity in a short time and with high accuracy. I can do well.

In this case, temperature fluctuations due to zero point shift and nonlinearity in the input/output characteristics of the electrical heating means, and temperature fluctuations due to load fluctuations when applied to a divided conductor, hardly occur.

In addition, since the control means is equipped with a temperature setting function that can arbitrarily set the necessary temperature for the linear velocity set by the data input means, the running linear speed can be adjusted in a shorter time compared to manual temperature adjustment using a setting device. You can set your body temperature.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a functional block diagram showing a heating temperature regulating device for a traveling linear body which is an embodiment of the present invention, and Fig. 2 is a functional block diagram showing an example of the operation of the same embodiment. FIG. 3 is a functional block diagram showing a conventional heating temperature adjustment device for a traveling linear body. RW...Running striated body, ■...Induction heating section (electrical heating means), 2...
...Linear velocity detection section (linear velocity detection means), 13...
...control unit (control means, has a temperature setting function), 4...power amount adjustment section (power amount adjustment means), 4a
...Output setting volume (setting device), 6...
... Voltage/current detector (voltage/current detection means), 3... Insulation converter, 4... Variable resistor (23, 24 are compensation means),
2...Data input section (data input means), 3.
...Temperature detection section (temperature detection means).

Claims (2)

[Claims] (1) (a) Traveling comprising linear velocity detection means for detecting the linear velocity of the running linear body heated by the electric heating means and temperature detection means for detecting the temperature of the running linear body. In the striatal body heating temperature adjustment device, (b) a power amount adjustment means that adjusts the power amount of the electric heating means based on a supplied signal or a set value of a setting device of the electric heating means; and (c) the above-mentioned. (d) voltage/current detection means that detects each of the output voltage and output current of the power amount adjustment means and outputs the detection results; (e) data input means for setting the linear velocity and temperature of the running linear body; (f) linear velocity data output from the linear velocity detection means and voltage output from the voltage/current detection means; control means for driving the power amount adjusting means based on data, current data, and temperature data set by the data input means; Electric power obtained based on the voltage data and the current data at the time when the setting value of the setting device is changed, and the voltage data and current immediately after the heating of the traveling striated body is started or immediately after the setting device is readjusted. A heating temperature adjusting device for a traveling linear body, characterized in that the electric power amount adjusting means is controlled so that the difference between the electric power and the reference electric power obtained based on the data is within a predetermined range. (2) The heating of the traveling linear body according to claim 1, wherein the control means has a temperature setting function that can arbitrarily set a temperature necessary for the linear velocity set by the data input means. Temperature control device.