CN210742757U - High-temperature embossing temperature control device - Google Patents
High-temperature embossing temperature control device Download PDFInfo
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- CN210742757U CN210742757U CN201921949418.1U CN201921949418U CN210742757U CN 210742757 U CN210742757 U CN 210742757U CN 201921949418 U CN201921949418 U CN 201921949418U CN 210742757 U CN210742757 U CN 210742757U
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Abstract
The utility model discloses a high temperature knurling temperature control device, including the roller, roller temperature regulator and controller, the roller top is provided with infrared temperature sensor, and infrared temperature sensor's detected signal loops through and sends into in the AD converter after signal amplification circuit and signal filter circuit handle, the utility model discloses the knot utilizes infrared temperature sensor to carry out real-time detection to calender roller surface temperature to effectively improve infrared temperature sensor detected signal and enlarge stability and the precision of output after signal amplification circuit and signal filter circuit handle, the controller is according to the surperficial temperature of the comparative difference value automatically regulated roller of AD converter output digital quantity and its inside control by temperature change setting value, makes the surface temperature of roller be in the invariable state of developments all the time, guarantees that calendering temperature is even, improves knurling production quality.
Description
Technical Field
The utility model relates to a calender knurling technical field especially relates to a high temperature knurling temperature control device.
Background
The antiskid performance of the yoga mat is improved through surface embossing in the manufacturing process, namely, a roller matched with a required pattern is replaced on a calender and the roller distance is adjusted according to the thickness of a product, and then the unfoamed semi-finished product is calendered through the calender to obtain the required pattern. Need carry out temperature control to the roller in the calender working process, current control mode is through the people for setting for heating temperature on roller temperature regulator, but in the in-service use process, because the roller constantly rotates and contacts yoga mat semi-manufactured goods and causes calorific loss, and roller temperature regulator can't carry out the surface to the roller accurately fast and carry out temperature compensation, causes the uneven yoga mat surface decorative pattern line that makes of calendering temperature irregular, influences the production quality.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a high temperature embossing temperature control device.
The technical scheme for solving the problem is as follows: a high-temperature embossing temperature control device comprises a roller, a roller temperature regulator and a controller, wherein an infrared temperature sensor is arranged above the roller, detection signals of the infrared temperature sensor are processed sequentially through a signal amplification circuit and a signal filtering circuit and then are sent into an A/D converter, and the controller regulates the surface temperature of the roller by controlling the roller temperature regulator according to a comparison difference value between the output digital quantity of the A/D converter and an internal temperature control set value of the A/D converter.
Further, the signal amplification circuit comprises a MOS tube Q1, a gate of the MOS tube Q1 is connected with one end of a resistor R1 and a capacitor C1 and an output end of the infrared temperature sensor, a drain of the MOS tube Q1 is connected with the other end of the resistor R1 through a +12V power supply, the other end of the capacitor C1 is grounded, a source of the MOS tube Q1 is grounded through a resistor R2 and is connected with one end of a resistor R3, a cathode of a voltage stabilizing tube DZ1 and a non-inverting input end of an operational amplifier U1 through a capacitor C2, the other end of the resistor R3 is connected with the +12V power supply, an anode of the voltage stabilizing tube DZ1 is grounded, and an inverting input end of the operational amplifier U1 is connected with an output end of the operational amplifier U1.
Further, the signal filter circuit comprises a triode VT1, the base of the triode VT1 is connected with the output end of the operational amplifier U1 through a resistor R4 and is grounded through a capacitor C4, the emitter of the triode VT1 is connected with a +12V power supply, the collector of the triode VT1 is connected with a resistor R5, one end of an inductor L1 and the cathode of a voltage regulator tube DZ2, the other end of the resistor R5 is grounded with the anode of the voltage regulator tube DZ2, and the other end of the inductor L1 is connected with the input end of the A/D converter and is grounded through a capacitor C5.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses utilize infrared temperature sensor to carry out real-time detection to calender roller surface temperature to send the detected signal after handling into the AD converter, the controller automatically regulated roller surface temperature according to the comparative difference of AD converter output digital quantity and its inside control by temperature change setting value, make roller surface temperature be in the dynamic constant state all the time, guarantee that the calendering temperature is even, improve knurling production quality;
2. temperature detection signals of the infrared sensor are sent to a signal amplification circuit to be amplified, the MOS tube Q1 has a good noise reduction effect on the amplification of the detection signals, and then the stability of the amplification output of the detection signals of the infrared temperature sensor is effectively improved by using a capacitance compensation principle in the operation and amplification process of the operation and amplification device U1;
3. the signal filtering circuit utilizes RC filtering to make an uproar falls to the output signal of fortune ware U1, and the peak clutter interference that effectively filters caused infrared temperature sensor detected signal because of external environment light source, then utilizes LC frequency-selective filtering to carry out the filtering to the miscellaneous frequency signal outside infrared temperature sensor detected signal, effectively improves the detected signal precision.
Drawings
Fig. 1 is a schematic diagram of the signal amplification circuit of the present invention.
Fig. 2 is a schematic diagram of the signal filtering circuit of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
A high-temperature embossing temperature control device comprises a roller, a roller temperature regulator and a controller, wherein an infrared temperature sensor J1 is arranged above the roller, a detection signal of the infrared temperature sensor J1 is processed by a signal amplification circuit and a signal filter circuit in sequence and then is sent into an A/D converter, and the controller regulates the surface temperature of the roller by controlling the roller temperature regulator according to a comparison difference value between an output digital quantity of the A/D converter and an internal temperature control set value of the A/D converter.
This use is novel when specifically using, and the roller surface is aimed at to infrared temperature sensor J1's probe to direct measurement calendering temperature has advantages such as the directness is strong, response speed is fast. However, the detection result of the infrared temperature sensor J1 is easily interfered by the external environment, so a signal amplifying circuit and a signal filtering circuit are designed to process the output signal of the infrared temperature sensor J1.
As shown in fig. 1, the signal amplification circuit includes a MOS tube Q1, a gate of the MOS tube Q1 is connected to one end of a resistor R1 and a capacitor C1, and an output end of an infrared temperature sensor J1, a drain of the MOS tube Q1 is connected to the other end of the resistor R1 by a +12V power supply, the other end of the capacitor C1 is grounded, a source of the MOS tube Q1 is grounded through a resistor R2, and is connected to one end of a resistor R3, a cathode of a regulator tube DZ1 and a non-inverting input end of an operational amplifier U1 through a capacitor C2, the other end of the resistor R3 is connected to the +12V power supply, an anode of the regulator tube DZ1 is grounded, and an inverting input end of the operational amplifier U1 is connected to an output end of.
In the processing process of the signal amplifying circuit, the output signal of the infrared temperature sensor J1 is firstly sent into the capacitor C1 for stabilization, and then the detection signal is amplified by the MOS tube Q1. Because the MOS tube has good temperature characteristics, the amplified output signal of the MOS tube Q1 has good noise reduction effect. And then the voltage is coupled by a capacitor C2 and sent to a circuit formed by a +12V power supply and a resistor R3 in series to apply reference voltage to the detection signal, and a voltage regulator tube DZ1 plays a role in stabilizing the reference voltage, so that the processing precision of the detection signal is improved. Finally, the detection signal is further amplified and output by the operational amplifier U1, and the capacitor C3 plays a role in signal compensation on the output signal of the operational amplifier U1 by utilizing the operational amplifier feedback principle, so that the stability of the amplification and output of the detection signal of the infrared temperature sensor J1 is effectively improved.
As shown in fig. 2, the output signal of the operational amplifier U1 is sent to a signal filter circuit for further processing, the signal filter circuit includes a transistor VT1, the base of the transistor VT1 is connected to the output terminal of the operational amplifier U1 through a resistor R4 and is grounded through a capacitor C4, the emitter of the transistor VT1 is connected to a +12V power supply, the collector of the transistor VT1 is connected to the resistor R5, one end of an inductor L1 and the cathode of a regulator DZ2, the other end of the resistor R5 is grounded to the anode of the regulator DZ2, and the other end of the inductor L1 is connected to the input terminal of the a/D converter and is grounded through a capacitor C5.
In the processing process of the signal filtering circuit, the resistor R4 and the capacitor C4 form RC filtering to reduce noise of an output signal of the operational amplifier U1, and spike clutter interference caused by an external environment light source on a detection signal of the infrared temperature sensor J1 is effectively filtered. And then, after signal intensity compensation is carried out by the triode VT1 and the amplitude of the voltage regulator tube DZ2 is stabilized, the signals are sent into LC frequency-selective filtering formed by an inductor L1 and a capacitor C5, and the mixed frequency signals except the detection signals of the infrared temperature sensor J1 are filtered, so that the detection signal precision is effectively improved.
The novel specific work flow of this use does: firstly, a calender is started to carry out an embossing procedure, and in the process, the surface temperature of a roller of the calender is detected in real time by using an infrared temperature sensor J1. The temperature detection signal of the infrared sensor is sent into the signal amplification circuit to be amplified, the MOS tube Q1 has a good noise reduction effect on the amplification of the detection signal, and then the stability of the amplification output of the detection signal of the infrared temperature sensor J1 is effectively improved by utilizing the capacitance compensation principle in the operation and amplification process of the operation and amplification device U1. The signal filtering circuit utilizes RC filtering to make an uproar falls to the output signal of fortune ware U1, and the peak clutter interference that effectively filters caused infrared temperature sensor J1 detected signal because of external environment light source, then utilizes LC frequency-selective filtering to carry out the filtering to the miscellaneous frequency signal outside infrared temperature sensor J1 detected signal, effectively improves the detected signal precision. And finally, the signal processed by the signal filter circuit is sent to an A/D converter for digital-to-analog conversion, and the surface temperature of the roller is adjusted by controlling the roller temperature adjuster according to the comparison difference value between the output digital quantity of the A/D converter and the internal temperature control set value of the A/D converter, so that the surface temperature of the roller is always in a dynamic constant state, the uniform calendering temperature is ensured, and the embossing production quality is improved.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (3)
1. The utility model provides a high temperature knurling temperature control device, includes roller, roller temperature regulator and controller, its characterized in that: an infrared temperature sensor is arranged above the roller, detection signals of the infrared temperature sensor are processed sequentially through a signal amplifying circuit and a signal filtering circuit and then sent to an A/D converter, and the controller adjusts the surface temperature of the roller by controlling the roller temperature adjuster according to a comparison difference value between digital output values of the A/D converter and a temperature control set value inside the A/D converter.
2. The high temperature embossing temperature control device of claim 1, wherein: the signal amplification circuit comprises a MOS tube Q1, the grid electrode of the MOS tube Q1 is connected with a resistor R1, one end of a capacitor C1 and the output end of the infrared temperature sensor, the drain electrode of the MOS tube Q1 is connected with a +12V power supply with the other end of a resistor R1, the other end of the capacitor C1 is grounded, the source electrode of the MOS tube Q1 is grounded through a resistor R2, and is connected with one end of a resistor R3, the cathode of a voltage regulator tube DZ1 and the non-inverting input end of an operational amplifier U1 through a capacitor C2, the other end of a resistor R3 is connected with a +12V power supply, the anode of a voltage regulator tube DZ1 is grounded, and the inverting input end of the operational amplifier U1 is connected with the output end of.
3. The high temperature embossing temperature control device of claim 2, wherein: the signal filtering circuit comprises a triode VT1, the base electrode of the triode VT1 is connected with the output end of an operational amplifier U1 through a resistor R4 and is grounded through a capacitor C4, the emitter electrode of the triode VT1 is connected with a +12V power supply, the collector electrode of the triode VT1 is connected with a resistor R5, one end of an inductor L1 and the cathode of a voltage regulator tube DZ2, the other end of the resistor R5 is grounded with the anode of the voltage regulator tube DZ2, and the other end of the inductor L1 is connected with the input end of an A/D converter and is grounded through a capacitor C5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949418.1U CN210742757U (en) | 2019-11-13 | 2019-11-13 | High-temperature embossing temperature control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921949418.1U CN210742757U (en) | 2019-11-13 | 2019-11-13 | High-temperature embossing temperature control device |
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| CN210742757U true CN210742757U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921949418.1U Active CN210742757U (en) | 2019-11-13 | 2019-11-13 | High-temperature embossing temperature control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815920A (en) * | 2022-03-09 | 2022-07-29 | 中维化纤股份有限公司 | Hot roller temperature control device is used in production of superfine denier nylon 66 |
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2019
- 2019-11-13 CN CN201921949418.1U patent/CN210742757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815920A (en) * | 2022-03-09 | 2022-07-29 | 中维化纤股份有限公司 | Hot roller temperature control device is used in production of superfine denier nylon 66 |
| CN114815920B (en) * | 2022-03-09 | 2024-02-20 | 中维化纤股份有限公司 | Hot roller temperature control device for superfine denier nylon 66 production |
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