JPH0630414Y2 - Control device for continuous rubber vulcanization line - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a vulcanization line control device for vulcanizing a continuously extruded rubber into a predetermined shape.

[Prior Art] A control device for a rubber continuous vulcanization line of this type includes a take-up device that takes out the material extruded from an extrusion device at a predetermined speed, and brings the extruded material into a predetermined temperature state. It consists of a vulcanizer that heats and vulcanizes and a plurality of conveyors that convey the extruded material at a predetermined speed.Each take-up machine, a vulcanizer, and a plurality of conveyors relatively monitor each operating condition. While controlling.

[Problems to be Solved by the Invention] However, the control device for the rubber continuous vulcanization line configured as described above controls the take-up machine, the vulcanization device, and the plurality of conveyors while relatively monitoring each operating condition. It was necessary to start the rubber continuous vulcanization line, which had been stopped, and it took a considerable time to reach steady operation. In addition, unless the rubber continuous vulcanization line is operated by a person who has a lot of experience, the time required for steady operation and the consumption of the extruded material are not negligible.

Then, this invention makes it a subject to provide the control apparatus of a rubber continuous vulcanization line which can control operation | movement of a rubber continuous vulcanization line easily even if it is not an expert.

[Means for Solving the Problems] A control device for a rubber continuous vulcanization line according to the present invention includes a take-up device that takes out an extruded material from an extrusion device at a predetermined speed, and a predetermined extruded material. A vulcanizing device that heats and vulcanizes to a temperature state, and comprises a plurality of conveyors that convey the extrusion-molded material at a predetermined speed, the output of the extrusion device and the vulcanizing device and the plurality of conveyors, The take-up speed of the take-up machine is controlled substantially proportionally.

[Operation] In the present invention, the extruded material is extruded from the extruding device with a take-up machine at a predetermined speed, and the extruded material is heated to a predetermined temperature state by a vulcanizing device to be vulcanized. The extruded material is conveyed by a plurality of conveyors at a predetermined speed. At this time, the outputs of the take-up machine, the vulcanizer, and the plurality of conveyors are controlled substantially proportionally according to the take-up speed of the take-up machine.

[Embodiment] An embodiment of the present invention will now be described.

FIG. 2 is an overall configuration diagram showing the outline of a rubber continuous vulcanization line having an insert in an extruded material of an embodiment of the present invention, and FIG. 3 is an extruded material of an embodiment of the present invention. It is the whole block diagram which shows the outline of the rubber continuous vulcanization line which does not have the insert in the material.

In FIG. 2, an extrusion device 13 including a first extruder 11 and a second extruder 12 obtains a material 14 extruded by integrating two types of rubber, that is, an extruded product. As the extrusion device 13, one to a plurality of extruders are used depending on the type of rubber to be integrated and the sectional shape. The high-frequency generator 15 arranged adjacent to the extrusion device 13 is for induction heating the insert side, and the first ultra-high-frequency generator 1 arranged adjacent to the high-frequency generator 15.
6 and the second ultra-high frequency generator 17 are for dielectrically heating the rubber side. In this embodiment, two super high frequency generators are used for this dielectric heating and heating is performed on the vulcanizer conveyor 18. The induction heating high-frequency generator 15 and the dielectric heating first ultra-high-frequency generator 16 and second ultra-high-frequency generator 17 are vulcanizers that heat the extruded material 14 to a predetermined temperature state and vulcanize it. Constitute. Further, a first hot air blower 26, a second hot air blower 27, and a third hot air blower 28 that are heated by hot air are further provided adjacent to these.

The extruded material 14 is dielectrically heated by the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17 to heat the extruded material to a predetermined temperature state, and then the first
It is conveyed while being heated by the first hot air blower 26, the second hot air blower 27, and the third hot air blower 28 arranged corresponding to the conveyor 19, the second conveyor 20, and the third conveyor 21. The vulcanizer conveyor 18 and the first conveyor 1
9, the second conveyor 20, and the third conveyor 21 constitute a plurality of conveyors that convey the extruded material 14 of this embodiment at a predetermined speed. In addition, the first conveyor 19,
A take-up machine 22 is arranged at the delivery-side end of the conveyor line composed of the second conveyor 20 and the third conveyor 21. The take-off machine 22 takes out the extruded material 14 extruded from the extruding device 13 with a predetermined tension. The material 14 extruded from the take-out machine 22 while maintaining the shape formed by the take-out machine 22. Is to be discharged.

In the vicinity of the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17 that dielectrically heat the rubber, the rubber is abnormally heated by dielectric heating, and when the rubber is ignited, it is burned (ultraviolet rays). And a single or plural ignition sensors 23 for detecting the temperature and the temperature (infrared rays). Also, the extrusion device 1
The moving speed of the extruded material 14 extruded from the No. 3 is detected by the rotary encoder 24 brought into contact with the material 14 delivered by the take-up machine 22.

This example outlines a continuous rubber vulcanization line having an insert in the extruded material 14, but in the case of a continuous rubber vulcanization line having no insert in the extruded material 14, A continuous rubber vulcanization line as shown in Fig. 3 is obtained. In this example, only the difference from the continuous rubber vulcanization line having the insert in the extruded material 14 shown in FIG. 2 will be described.

In this embodiment, a heat ray heater 25 such as an infrared lamp is arranged adjacent to the extrusion device 13 to heat the rubber of the extruded material 14 by direct irradiation. The hot wire heater 25, the first super high frequency generator 16 and the second super high frequency generator 17 for dielectric heating, the first hot air blower 26, the second hot air blower 27, and the third hot air blower 28 are the extruded material 14 A vulcanizing apparatus is provided which heats the vulcanizate to a predetermined temperature state and vulcanizes it.

Next, the control device 10 for controlling the rubber continuous vulcanization line of the above embodiment will be described.

FIG. 1 is a block diagram showing a control device 10 for controlling a rubber continuous vulcanization line having an insert in an extruded material according to an embodiment of the present invention. FIG. 4 is a take-up machine by a control device of a continuous rubber vulcanization line according to an embodiment of the present invention,
It is a time chart of a 1st extruder and a high frequency generator. Further, FIG. 5 (a) is a circuit example of the take-up machine setting means, and FIG. 5 (b) is a circuit example of the amplification factor setting means.

The starting switch 30 is a switch for driving the entire rubber continuous vulcanizing line, and the starting switch 30 starts the rubber continuous vulcanizing line. Then, the rising speed α and the operating voltage V of the take-up speed of the take-up machine motor 22a of the take-up machine 22 which takes out the extruded material 14 extruded from the extruder 13 by the take-up machine setting means 31 with a predetermined tension.
To set. The rising speed α of the take-up speed of the take-up machine 22 and the operating voltage V are set by setting the integral multiplier of the amplifier. As shown in FIG.
Is the steady-state voltage at that time.

Further, when the ignition sensor 23 detects that the rubber has ignited by the abnormal heating operation setting means 32 due to the abnormal heating of the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17 which are dielectrically heated, or the rotary operation. When the encoder 24 detects that the speed of the material 14 delivered by the take-up machine 22 is lower than a predetermined speed, the abnormal operating voltage V / n of the steady voltage for reducing the take-up speed of the take-up machine 22 to the predetermined speed is obtained.
Is set in the abnormal time operation setting means 32. Abnormal operating voltage V
/ N is an operation for discharging the extruded material 14 when the rubber continuous vulcanization line is abnormal, and is arbitrarily selected by the rubber continuous vulcanization line, and is in a stopped state (abnormal operation voltage depending on the usage mode). In some cases, V / n = 0). Further, the operating signal and the abnormal signal of each device may be processed by a logic circuit to control the operating state at the time of the abnormal state.

The outputs of the take-up machine setting means 31 and the abnormal-time operation setting means 32 are input to the changeover switch means 33 including two switches 33A and 33B, and the changeover switch means 3 is provided.
3 is a firing sensor 23 for detecting rubber ignition due to abnormal heating of the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17 which are dielectrically heated, and the speed of the material 14 delivered by the take-off machine 22 is a predetermined speed. It is switched by the output of the abnormality detecting means 34 which detects an abnormality by the output of the rotary encoder 24 which detects a further decrease.

The rising speed α of the take-up speed motor 22a of the take-up machine 22 and the operating voltage V are input to the amplification factor setting means 35 via the switch 33A, where the amplification factor k of the amplifier is set.
Set 1. This amplification factor k1 is, as shown in FIG. 4 (b), the product of the rising speed α of the take-up speed and the amplification factor k1.
The extruder motor 11a is started, and the operating voltage V1 becomes a steady voltage at that time. Then, the correcting unit 36 corrects the zero voltage V01 and the operating voltage Ve1 that match the characteristics of the first extruder motor 11a, and the output thereof is the first extruder motor 11a.
Are typing in.

Similarly, the rising speed α of the take-up speed motor 22a of the take-up machine 22 and the operating voltage V are input to the amplification factor setting means 37 via the switch 33A, and the amplification factor k2 of the amplifier is set here. This amplification factor k2 is corrected by the correction means 38.
Zero voltage V that matches the characteristics of the second extruder motor 12a
02 and the operating voltage Ve2 are corrected, and the output is input to the second extruder motor 12a.

The rising speed α of the take-up speed motor 22a of the take-up machine 22 and the operating voltage V are input to the amplification factor setting means 39 via the switch 33B, where the amplification factor k of the amplifier is set.
Set 3. As shown in FIG. 4 (c), the amplification factor k3 is the product of the rising speed α of the take-up speed and the amplification factor k3, which causes the high-frequency generator 15 to start up, and the operating voltage V3 becomes a steady voltage at that time. Then, the high frequency generator 1 is corrected by the correction means 40.
The zero voltage V03 and the operating voltage Ve3 that match the characteristics of No. 5 are corrected, and the output is input to the high frequency generator 15.

Also for the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17, the rising speed α of the take-up speed of the take-up machine motor 22a of the take-up machine 22 and the operating voltage V are set to the switch 33B.
Via the amplification factor setting means 41 or the amplification factor setting means 43
To the amplification factor k4 or amplification factor k4 of the amplifier.
Set 5. The amplification factor k4 or the amplification factor k5 is corrected by the correction means 42 or the correction means 44 to correct the zero voltage V04 and the operating voltage Ve4 or the zero voltage V05 and the operating voltage Ve5,
The output is input to the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17.

Further, the rising speed α of the take-up speed motor 22a of the take-up machine 22 and the operating voltage V are input to the amplification factor setting means 45 via the switch 33A, where the amplification factor k6 of the amplifier is set. This amplification factor k6 is corrected by the correction means 46 to the zero voltage V06 and the operating voltage Ve6 that match the characteristics of the vulcanizer conveyor motor 18a, and the output is input to the vulcanizer conveyor motor 18a.

Similarly, the rising speed α of the take-up speed motor 22a of the take-up machine 22 and the operating voltage V are input to the amplification factor setting means 47, the amplification factor setting means 49, and the amplification factor setting means 51 via the switch 33A, Here, the amplification factor k7 of the amplifier,
The amplification factor k8 and the amplification factor k9 are set. This amplification factor k7,
The amplification factors k8 and k9 are corrected by the correction means 48 and the correction means 5.
0, the zero voltage V07 and the operating voltage Ve7 that match the characteristics of the first conveyor motor 19a by the correction means 52, the zero voltage V08 and the operating voltage Ve8 that match the characteristics of the second conveyor motor 20a, and the zero voltage V08 and the operating voltage Ve8 of the third conveyor motor 21a. The zero voltage V09 and the operating voltage Ve9 that match the characteristics are corrected, and the respective outputs are the respective first conveyor motor 19a and the second conveyor motor 2
0a, input to the third conveyor motor 21a. However, the first hot air blower 26, the second hot air blower 27, and the third hot air blower 28 are not particularly controlled because they need to be sufficiently heated before the line start.

A specific circuit of the take-up machine setting means 31 for setting the rising speed α of the take-up machine motor 22a of the take-up machine 22 and the operating voltage V is set by setting the integral resistance of an amplifier such as an operational amplifier. it can. Further, the amplification factor setting means 35, 37, 39, 41, 43, 45, 4
As specific circuits 7, 49 and 51, the amplification factor is determined by setting the feedback resistance of an amplifier such as an operational amplifier. In particular, in this embodiment, as shown in FIG. 5 (a), as the circuit example of the take-up machine setting means 31 for setting the rising speed α of the take-up speed and the operating voltage V, the operating voltage V is set by the potentiometer VR. The rising speed α of the take-up speed is set by the integration resistance R of the operational amplifier OP which is the charging resistance of the capacitor C. Further, as shown in FIG. 5 (b), amplification factor setting means 35, 37, 39, 41, 43, 4
The amplification factor is set by setting the feedback resistors Rfn of the operational amplifiers OPn of 5, 47, 49 and 51.

Therefore, the integral resistance of the take-up machine setting means 31 and the amplification factor setting means 35, 37, 39, 41, 43, 45, 4
The feedback resistors 7, 49 and 51 can be arranged on the substrate as variable resistors or fixed resistors. Alternatively, the resistance value can be set in the substrate together with the amplifier.
A board can be prepared for each product, and the product can be handled only by replacing or switching the board.

Further, the correction means 36, 38, 40, 42, 44, 4
The adjustment of the zero voltage V01 to V09 and the operating voltages Ve1 to Ve9 of 6, 48, 50, 52 is performed by the first extruder 11, the second extruder 12, the high frequency generator 15, the first super high frequency generator 16, and the first extruder 11. 2 super high frequency generator 17, vulcanizer conveyor 18, first
It is determined by the conveyor 19, the second conveyor 20, and the third conveyor 21, and may be omitted depending on the object. Here, the description is omitted because it is not directly related to the gist of the present invention.

The control device of the rubber continuous vulcanization line of the present embodiment configured as described above operates as follows.

First, the take-up machine setting means 31 sets the rising speed α and the operating voltage V of the take-up speed of the take-up machine motor 22a of the take-up machine 22 that takes out the extruded material 14 extruded from the extrusion device 13 with a predetermined tension. . The first extruder 11, the second extruder 12, the high frequency generator 15, the first super high frequency generator 16, and the second super high frequency generator corresponding to the rising speed α of the take-up speed of the take-up motor 22a at this time. 17, vulcanizer conveyor 18, first conveyor 19, second conveyor 2
0, amplification factor setting means 35, 37, 3 of the third conveyor 21
The optimum amplification factors of 9, 41, 43, 45, 47, 49, 51 are determined.

The rising speed α of the take-up speed of the take-up machine 22, the operating voltage V, and the amplification factor setting means 35, 37, 39, 41,
The optimum amplification factors of 43, 45, 47, 49 and 51 are set to the resistors set on the substrate for each material 14 delivered by the take-off machine 22.

Therefore, the rising speed α of the take-up speed once set, the operating voltage V, and the amplification factor setting means 35, 37, 39, 4 are set.
The optimum amplification factors of 1,43,45,47,49,51 are rubber continuous only by operating the starting switch 30 by selecting a substrate that matches the material 14 sent by the take-up machine 22 every time the material 14 is changed. The vulcanization line can be operated.

First, from the time point t0 of operating the start switch 30, the take-up speed rises at the take-up speed α of the take-up machine motor 22a of the take-up machine 22. And each 1st extruder 11, 2nd extruder 12, high frequency generator 15, 1st super high frequency generator 16, 2nd super high frequency generator 17, vulcanizer conveyor 18, 1st conveyor 19, 2nd Conveyor 2
0, amplification factor setting means 35, 37, 3 of the third conveyor 21
The capacity is increased by the optimum amplification factors of 9, 41, 43, 45, 47, 49, 51, and at time t _c when the operating voltage V of the take-up speed is reached, a steady operation state is set.

During this period, for example, during steady-state operation, the output of the abnormal-time operation setting means 32 causes the ignition sensor 23 to abnormally heat the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17 that dielectrically heat the rubber. When ignition is detected, or
When it is detected by the rotary encoder 24 that the speed of the material 14 delivered by the take-up machine 22 is lower than a predetermined speed, the changeover switch means 3 is output by the abnormality detection means 34.
3 is switched. By this switching, the take-up machine 22, the first extruder 11, the second extruder 12, the vulcanizer conveyor 1
8, the first conveyor 19, the second conveyor 20, the third conveyor 21 reduces its input to a predetermined value, and the high frequency generator 15, the first ultra high frequency generator 16 and the second ultra high frequency generator 17 are , The input is zero. This allows the take-up machine 2
The ignition of the material 14 delivered in 2 is stopped, and the material 14 having the ignition point is discharged at a predetermined low speed.

In the rubber continuous vulcanization line of the embodiment shown in FIG. 3, the high-frequency generator 15 of the embodiment shown in FIG. 2 is the hot wire heater 25, but the basic operation is the same.

As described above, the control device for the continuous rubber vulcanization line according to the embodiment of the present invention draws the material 14 extruded from the extrusion device 13 at a predetermined speed, and the extruded material 14. High frequency generator 15 for induction heating to a predetermined temperature state, first super high frequency generator 16 and second super high frequency generator 17 for dielectric heating or hot wire heater 25, and first super high frequency generator 16 and second for dielectric heating A vulcanizing device including an ultra-high frequency generator 17, and the extruded material 1
Vulcanizing device conveyor 18, first conveyor 19, second conveyor 20, third conveyor 21 that conveys No. 4 at a predetermined speed.
The continuous rubber is provided with a plurality of conveyors, and a control device 10 for proportionally controlling the output of the vulcanizer and the plurality of conveyors based on the control of the take-up speed of the take-up machine 22. The extruded material 14 can be manufactured from the extrusion device 13 in the initial stage of starting the vulcanization line without deformation or cutting. In particular, the operation of the continuous rubber vulcanization line at the initial stage of startup can be performed by an unskilled person, and its control can be simplified.

Further, in the case where a resistor is set on the substrate for each material 14 delivered by the take-off machine 22 as in the above embodiment, the control can be changed by any control target by setting the resistance value mounted on the substrate. Even if you are not a specially trained expert, you can easily handle correction of continuous rubber vulcanization line.

Then, as in the above-described embodiment, the abnormal time operation setting means 32
By the abnormal encoder, the rotary encoder 24 detects abnormal heating of the first ultra-high frequency generator 16 and the second ultra-high frequency generator 17 that are dielectrically heated, and that the speed of the material 14 delivered by the take-up machine 22 has dropped below a predetermined speed. Therefore,
It is easy to deal with abnormal situations.

By the way, the take-off machine that takes out the material extruded from the extruder of the control device for the rubber continuous vulcanization line of the above-mentioned embodiment at a predetermined speed is arranged after a plurality of conveyors. In the case of implementation, the location of the arrangement is not specified.

Further, the vulcanization device for heating and vulcanizing the extruded material of the above-mentioned embodiment to the predetermined temperature state includes the induction heating high frequency generator 15 for vulcanizing to the predetermined temperature state and the first super high frequency for dielectric heating. The generator 16 and the second super high frequency generator 17 or the hot wire heater 25 and the first super high frequency generator 16 and the second super high frequency generator 17 that perform dielectric heating are used for heating the present invention. The type, combination and number of means are not specified and can be arbitrarily selected according to the material extruded.

Then, based on the control of the take-up speed of the take-off machine of the above embodiment, the controller for proportionally controlling the speed of the vulcanizer and the plurality of conveyors for the output of the vulcanizer and the plurality of conveyors is the take-up of the above embodiment. Based on the control of the take-up speed of the machine, the output of the vulcanizer and the plurality of conveyors is proportionally controlled according to the speed of the vulcanizer and the plurality of conveyors. Based on the control of the take-up speed of the take-off machine of the above-described embodiment, the control is performed in a substantially proportional manner so that the controlled object having nonlinearity can be matched.

[Effects of the Invention] As described above, the control device for the rubber continuous vulcanization line of the present invention has a take-up device for taking out the material extruded from the extrusion device at a predetermined speed, and bringing the material into a predetermined temperature state. A vulcanizing device that heats and vulcanizes, and a plurality of conveyors that convey the material at a predetermined speed, and the extrusion device and the vulcanizing device and a plurality of conveyors based on the control of the take-up speed of the take-up machine. The output of is controlled approximately proportionally.

Therefore, the operation at the initial start-up can be performed without deforming or cutting the material extruded from the extrusion device at the initial start-up of the rubber continuous vulcanization line, and even an unskilled person can easily control the operation. In addition, it is possible to eliminate waste of time until the steady operation and waste of the extrusion-molded material.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control device for controlling a rubber continuous vulcanization line having an insert in an extruded material of an embodiment of the present invention, and FIG. 2 is an extruded material of an embodiment of the present invention. Fig. 3 is an overall configuration diagram showing the outline of a continuous rubber vulcanization line having an insert in the material, and Fig. 3 is an overall outline showing the continuous rubber vulcanization line having no insert in the extruded material of one embodiment of the present invention. FIG. 4 is a time chart of a take-up machine, a first extruder and a high-frequency generator by a control device for a rubber continuous vulcanization line according to an embodiment of the present invention,
FIG. 5 shows a circuit example of the take-up machine setting means and a circuit example of the amplification factor setting means used in the control device for the rubber continuous vulcanization line according to the embodiment of the present invention. In the figure, 10: control device, 13: extrusion device 14: material, 15: high frequency generator 16: first super high frequency generator 17: second super high frequency generator 18: vulcanizer conveyor 19: first conveyor, 20: 2nd conveyor 21: 3rd conveyor, 22: take-off machine 25: hot wire heater. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A take-up machine that draws an extruded material from an extruding device at a predetermined speed, a vulcanizing device that heats and vulcanizes the extruded material to a predetermined temperature state, and the extruded material. A plurality of conveyors that convey the material at a predetermined speed, and a control device that controls the outputs of the extrusion device, the vulcanization device, and the plurality of conveyors approximately in proportion to the control of the take-up speed of the take-up machine. A device for controlling a continuous rubber vulcanization line characterized by: