CN110618713A - Temperature constant system in corrugated medium production process - Google Patents
Temperature constant system in corrugated medium production process Download PDFInfo
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- CN110618713A CN110618713A CN201910763716.XA CN201910763716A CN110618713A CN 110618713 A CN110618713 A CN 110618713A CN 201910763716 A CN201910763716 A CN 201910763716A CN 110618713 A CN110618713 A CN 110618713A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
A temperature constant system in the production process of corrugated base paper is characterized in that the temperature constant system is arranged in equipment corresponding to the production of the corrugated base paper, if the temperature in the corresponding equipment is lower than a set value, a heating wire EH in the corresponding equipment is electrified to heat and raise the temperature, and when the temperature in the corresponding equipment rises to a certain temperature away from the set temperature, the resistance is increased, the conduction angle of a thyristor VT is reduced, the voltage of two ends of the heating wire EH is reduced, the temperature raising speed is reduced, and the thermal inertia is reduced. When the temperature in the corresponding equipment reaches the set temperature, the heating wire EH stops heating. When the temperature is reduced, VT is triggered to be conducted again, the heating wire EH is electrified to heat, the temperature is increased, and the process is repeated, so that the temperature of the corresponding equipment is basically stable. When the corrugated base paper is produced, the environmental temperature is controlled in a proper range, so that the environmental pressure strength of the corrugated base paper can be improved, and the occurrence of easy fracture caused by too low temperature can be reduced.
Description
Technical Field
The invention relates to corrugated medium, in particular to a temperature constant system in the production process of the corrugated medium, and belongs to the technical field of temperature control.
Background
Corrugated medium is one of the important constituent materials for producing corrugated cardboard. The corrugated base paper requires good fiber bonding strength, flat paper surface, better tightness and stiffness and certain elasticity so as to ensure that the manufactured carton has shockproof and pressure resistance.
However, in the production process of the corrugated medium at present, the yield of the corrugated medium is not high due to external factors, for example, due to temperature factors, if the environmental temperature is too high when the corrugated medium is produced, the strength of the produced corrugated medium is not sufficient, that is, the ring crush strength is poor, and if the environmental temperature is too low when the corrugated medium is produced, the produced corrugated medium is too hard and is easy to break, which causes the yield of the corrugated medium to be reduced in both high-temperature and low-temperature environments.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a temperature constant system in the production process of corrugated medium, which has a simple structure, and can control the environment temperature in a proper range when the corrugated medium is produced, thereby not only improving the ring crush strength of the corrugated medium, but also reducing the occurrence of easy fracture caused by too low temperature.
In order to achieve the purpose, the invention provides a temperature constant system in the production process of corrugated medium, which comprises a production workshop and corresponding production equipment arranged in the production workshop in each process, wherein the production equipment comprises pulping equipment, deslagging equipment, screening equipment and additive equipment, the corrugated medium is finally produced, and the temperature constant system is respectively arranged on the pulping equipment, the deslagging equipment, the screening equipment and the additive equipment.
The temperature constant system comprises resistors R1-R9, potentiometers RP 1-RP 2, capacitors C1, electrolytic capacitors C2, diodes D1-D3, voltage stabilizing diodes DW, triodes BG 1-BG 2, thyristors VT, temperature sensor integrated circuits IC 1-IC 2, a relay J1 and a normally open contact J1-1 thereof, a relay J2 and a normally open contact J2-1 thereof, a heating wire EH, a power indicator lamp HL and a power switch SA; the power switch SA is connected with the input end of a power supply, the power indicator lamp HL is connected between the power switch SA and the ground, the normally open contact J2-1 of the relay J2, the heating wire EH and the thyristor VT are connected in series and then connected between the power switch SA and the ground, the cathode of the thyristor VT is grounded, the resistor R1 and the capacitor C1 are connected in parallel and then connected between the power switch SA and the anode of the diode D1, the cathode of the diode D1 is respectively connected with the anode of the capacitor C2, the cathode of the voltage stabilizing diode DW, one end of the resistor R9, the cathode of the diode D3, one end of the relay J2, one end of the resistor R5, the cathode of the diode D2, one end of the relay J1, one end of the resistor R2, the cathode of the capacitor C2 is grounded, the anode of the voltage stabilizing diode DW is grounded, the other end of the resistor R9 is connected in series with the resistor R8 and then connected with the gate of the thyristor VT, the anode of the, The other end of the resistor R2 is connected with a pin 3 of the temperature sensor integrated circuit IC1 and one end of the resistor R4 respectively, the other end of the resistor R4 is grounded after being connected with the potentiometer RP1 in series, the sliding end of the potentiometer RP1 is connected with a pin 2 of the temperature sensor integrated circuit IC1, the other end of the resistor R3 is connected with a pin 2 of the temperature sensor integrated circuit IC1, the base of the transistor BG1 is connected with a pin 1 of the temperature sensor integrated circuit IC1, and the emitter of the transistor BG1 and a pin 4 of the temperature sensor integrated circuit IC1 are grounded;
the anode of the diode D3 is connected with the other end of the relay J2 and then is respectively connected with one end of a resistor R6 and the collector of a triode BG2, the other end of the resistor R5 is respectively connected with a pin 3 of a temperature sensor integrated circuit IC2 and one end of a resistor R7, the other end of the resistor R7 is connected with a potentiometer RP2 in series and then is grounded, the sliding end of the potentiometer RP2 is connected with a pin 2 of the temperature sensor integrated circuit IC2, the other end of the resistor R6 is connected with a pin 2 of the temperature sensor integrated circuit IC2, the base of the triode BG2 is connected with a pin 1 of the temperature sensor integrated circuit IC2, and the emitter of the triode BG2 and the pin 4 of the temperature sensor integrated circuit IC2 are.
The temperature sensor integrated circuits IC1, IC2 are of type PC 616.
The diodes D1-D3 are IN 4007.
The triodes BG1 and BG2 are NPN tube type, and model number is 8050.
The voltage stabilizing value of the voltage stabilizing diode DW is 12V, and the power of the heating wire EH is 200W.
Compared with the prior art, the constant temperature systems are respectively arranged on the pulping equipment, the deslagging equipment, the screening equipment and the additive equipment, if the temperature on the corresponding equipment is lower than a set value, the heating wire EH in the corresponding constant temperature system is electrified to heat and raise the temperature, and when the temperature in the corresponding constant temperature system rises to a certain temperature away from the set temperature, the resistance is increased, the conduction angle of the thyristor VT is reduced, the voltage at two ends of the heating wire EH is reduced, the temperature raising speed is reduced, and the thermal inertia is reduced. When the temperature on the corresponding device reaches the set temperature, the heating wire EH stops heating. When the temperature is reduced, VT is triggered to be conducted again, the heating wire EH is electrified to heat, the temperature is increased, and the process is repeated, so that the temperature on the corresponding equipment is basically stable. The invention has the beneficial effects that when the corrugated medium is produced, the environmental temperature is controlled in a proper range, so that the environment pressure strength of the corrugated medium can be improved, and the occurrence of easy fracture caused by too low temperature can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a production process of corrugated base paper according to the present invention;
fig. 2 is a schematic circuit diagram of the temperature constancy system of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a temperature constant system in the production process of corrugated medium paper comprises a production workshop and production equipment corresponding to each process and installed inside the production workshop, wherein the production equipment comprises pulping equipment, deslagging equipment, screening equipment and additive equipment, corrugated medium paper is finally produced, and the temperature constant system is respectively installed on the pulping equipment, the deslagging equipment, the screening equipment and the additive equipment.
The temperature constant system comprises resistors R1-R9, potentiometers RP 1-RP 2, capacitors C1, electrolytic capacitors C2, diodes D1-D3, voltage stabilizing diodes DW, triodes BG 1-BG 2, thyristors VT, temperature sensor integrated circuits IC 1-IC 2, a relay J1 and a normally open contact J1-1 thereof, a relay J2 and a normally open contact J2-1 thereof, a heating wire EH, a power indicator lamp HL and a power switch SA; the models of the temperature sensor integrated circuits IC1 and IC2 are PC 616; the type of the diodes D1-D3 is IN 4007; the triodes BG1 and BG2 are NPN tube type, and the model is 8050; the voltage stabilizing value of the voltage stabilizing diode DW is 12V, and the power of the heating wire EH is 200W.
The power switch SA is connected with the input end of a power supply, the power indicator lamp HL is connected between the power switch SA and the ground, the normally open contact J2-1 of the relay J2, the heating wire EH and the thyristor VT are connected in series and then connected between the power switch SA and the ground, the cathode of the thyristor VT is grounded, the resistor R1 and the capacitor C1 are connected in parallel and then connected between the power switch SA and the anode of the diode D1, the cathode of the diode D1 is respectively connected with the anode of the capacitor C2, the cathode of the voltage stabilizing diode DW, one end of the resistor R9, the cathode of the diode D3, one end of the relay J2, one end of the resistor R5, the cathode of the diode D2, one end of the relay J1, one end of the resistor R2, the cathode of the capacitor C2 is grounded, the anode of the voltage stabilizing diode DW is grounded, the other end of the resistor R9 is connected in series with the resistor R8 and then connected with the gate of the thyristor VT, the anode of the, The other end of the resistor R2 is connected with a pin 3 of the temperature sensor integrated circuit IC1 and one end of the resistor R4 respectively, the other end of the resistor R4 is grounded after being connected with the potentiometer RP1 in series, the sliding end of the potentiometer RP1 is connected with a pin 2 of the temperature sensor integrated circuit IC1, the other end of the resistor R3 is connected with a pin 2 of the temperature sensor integrated circuit IC1, the base of the transistor BG1 is connected with a pin 1 of the temperature sensor integrated circuit IC1, and the emitter of the transistor BG1 and a pin 4 of the temperature sensor integrated circuit IC1 are grounded;
the anode of the diode D3 is connected with the other end of the relay J2 and then is respectively connected with one end of a resistor R6 and the collector of a triode BG2, the other end of the resistor R5 is respectively connected with a pin 3 of a temperature sensor integrated circuit IC2 and one end of a resistor R7, the other end of the resistor R7 is connected with a potentiometer RP2 in series and then is grounded, the sliding end of the potentiometer RP2 is connected with a pin 2 of the temperature sensor integrated circuit IC2, the other end of the resistor R6 is connected with a pin 2 of the temperature sensor integrated circuit IC2, the base of the triode BG2 is connected with a pin 1 of the temperature sensor integrated circuit IC2, and the emitter of the triode BG2 and the pin 4 of the temperature sensor integrated circuit IC2 are.
The resistance values of these elements in fig. 2 are well known and can be adjusted as required by those skilled in the art.
The working principle of the invention is as follows: when the pulping process of the invention is started, after the power switch SA is pressed, the voltage is reduced through the resistor R1 and the capacitor C1, the diode D1 rectifies, the electrolytic capacitor C2 filters, and the voltage is stabilized by the voltage stabilizing diode DW, so that the 12V direct current voltage is obtained and supplied to the temperature control circuit to work. A voltage division circuit consisting of a resistor R4 and a potentiometer RP1 converts a temperature signal of the temperature sensor integrated circuit IC1 into a voltage signal, and the potentiometer RP1 is changed to adjust the set temperature a of the incubator; similarly, a voltage division circuit consisting of the resistor R7 and the potentiometer RP2 converts the temperature signal of the temperature sensor integrated circuit IC2 into a voltage signal, and the potentiometer RP1 is changed to adjust the set temperature b of the incubator, wherein the set temperature a is less than the set temperature b (the set temperature b is the egg hatching temperature). After the power supply is switched on, the temperature in the incubator 1 is lower than a set temperature a, a pin 1 of the temperature sensor integrated circuit IC1 outputs a high level, the triode BG1 is switched on, the relay J1 is electrified and sucked, the normally open contact J1-1 is closed, and the resistor R8 is short-circuited; in a similar way, the pin 1 of the temperature sensor integrated circuit IC2 outputs a high level, the triode BG2 is conducted, the relay J2 is electrified and attracted, the normally open contact J2-1 is also closed, the heating wire EH is electrified and heated to rise, the temperature reaches a set temperature a along with the temperature rise in the thermostat, the pin 1 of the temperature sensor integrated circuit IC1 outputs a low level, the triode BG1 is cut off, the relay J1 is not attracted, the normally open contact J1-1 is disconnected, the resistor R8 is connected, the gate pole circuit resistor of the thyristor is increased, the conduction angle is reduced, the voltage of two ends of the heating wire EH is reduced, the heating speed is reduced, and the thermal inertia is reduced. When the temperature slowly rises to the set temperature b, the pin 1 of the temperature sensor integrated circuit IC2 outputs low level, the triode BG2 is cut off, the relay J2 does not attract, the normally open contact J2-1 is disconnected, the heating wire EH loses electricity to stop heating, and the temperature cannot rise much because the thermal inertia of the heating wire is reduced before. When the heating wire EH stops heating, the temperature of the pulping equipment begins to decrease, when the heating wire EH decreases to the set temperature b, the relay J2 is attracted again, the heating wire EH is reheated, the temperature is still decreased because the conduction angle of the thyristor VT is smaller, when the heating wire decreases to the set temperature a, the relay J1 is attracted, the resistor R8 is short-circuited, the gate pole resistance of the thyristor circuit is reduced, the conduction angle is increased, the heating power is increased, the temperature begins to increase again, and the process is circulated so as to maintain the temperature in the pulping process to be constant.
Similarly, when the deslagging, screening and additive processes of the invention are started, the same working principle as the pulping process is adopted, so as to maintain the temperature of the corresponding deslagging, screening and additive processes to be constant.
Claims (6)
1. The utility model provides a constancy of temperature system in corrugated medium production process, includes the workshop to and install the production facility that every in-process inside the workshop corresponds, the production facility is making beating equipment, slag removal equipment, screening equipment and additive equipment, produces corrugated medium at last, its characterized in that installs the constancy of temperature system respectively on making beating equipment, slag removal equipment, screening equipment and additive equipment.
2. The temperature stabilizing system in the corrugated medium production process according to claim 1, wherein the temperature stabilizing system comprises resistors R1-R9, potentiometers RP 1-RP 2, capacitors C1, electrolytic capacitors C2, diodes D1-D3, zener diodes DW, triodes BG 1-BG 2, thyristors VT, temperature sensor integrated circuits IC 1-IC 2, relays J1 and normally open contacts J1-1 thereof, relays J2 and normally open contacts J2-1 thereof, heating wires EH, power indicator lights HL, and power switches SA; the power switch SA is connected with the input end of a power supply, the power indicator lamp HL is connected between the power switch SA and the ground, the normally open contact J2-1 of the relay J2, the heating wire EH and the thyristor VT are connected in series and then connected between the power switch SA and the ground, the cathode of the thyristor VT is grounded, the resistor R1 and the capacitor C1 are connected in parallel and then connected between the power switch SA and the anode of the diode D1, the cathode of the diode D1 is respectively connected with the anode of the capacitor C2, the cathode of the voltage stabilizing diode DW, one end of the resistor R9, the cathode of the diode D3, one end of the relay J2, one end of the resistor R5, the cathode of the diode D2, one end of the relay J1, one end of the resistor R2, the cathode of the capacitor C2 is grounded, the anode of the voltage stabilizing diode DW is grounded, the other end of the resistor R9 is connected in series with the resistor R8 and then connected with the gate of the thyristor VT, the anode of the, The other end of the resistor R2 is connected with a pin 3 of the temperature sensor integrated circuit IC1 and one end of the resistor R4 respectively, the other end of the resistor R4 is grounded after being connected with the potentiometer RP1 in series, the sliding end of the potentiometer RP1 is connected with a pin 2 of the temperature sensor integrated circuit IC1, the other end of the resistor R3 is connected with a pin 2 of the temperature sensor integrated circuit IC1, the base of the transistor BG1 is connected with a pin 1 of the temperature sensor integrated circuit IC1, and the emitter of the transistor BG1 and a pin 4 of the temperature sensor integrated circuit IC1 are grounded;
the anode of the diode D3 is connected with the other end of the relay J2 and then is respectively connected with one end of a resistor R6 and the collector of a triode BG2, the other end of the resistor R5 is respectively connected with a pin 3 of a temperature sensor integrated circuit IC2 and one end of a resistor R7, the other end of the resistor R7 is connected with a potentiometer RP2 in series and then is grounded, the sliding end of the potentiometer RP2 is connected with a pin 2 of the temperature sensor integrated circuit IC2, the other end of the resistor R6 is connected with a pin 2 of the temperature sensor integrated circuit IC2, the base of the triode BG2 is connected with a pin 1 of the temperature sensor integrated circuit IC2, and the emitter of the triode BG2 and the pin 4 of the temperature sensor integrated circuit IC2 are.
3. The system for maintaining constant temperature in the production process of corrugated medium paper as claimed in claim 1, wherein the temperature sensor integrated circuits IC1 and IC2 are PC 616.
4. The temperature stabilizing system IN the production process of corrugated medium paper as claimed IN claim 1, wherein the diodes D1-D3 are IN 4007.
5. The system for keeping the temperature constant in the production process of the corrugated medium as claimed in claim 1, wherein the transistors BG1 and BG2 are NPN tube type, model 8050.
6. The system for stabilizing temperature in the production process of corrugated medium paper as claimed in claim 1, wherein the voltage stabilizing diode DW has a voltage stabilizing value of 12V, and the power of the heating wire EH is 200W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910763716.XA CN110618713A (en) | 2019-08-19 | 2019-08-19 | Temperature constant system in corrugated medium production process |
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| CN201910763716.XA CN110618713A (en) | 2019-08-19 | 2019-08-19 | Temperature constant system in corrugated medium production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327962A (en) * | 2020-10-19 | 2021-02-05 | 浙江大学 | Detection control circuit for intelligent metabook paper fermentation box |
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| US20110272842A1 (en) * | 2010-05-06 | 2011-11-10 | Chih-Heng Chen | Method for manufacturing and shaping environment-conservative plant fiber as substitute for wood, paper, and plastics |
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| CN204740511U (en) * | 2015-04-30 | 2015-11-04 | 苏州锟恩电子科技有限公司 | Thermostatic control circuit of birds, beasts and eggs hatching |
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Application publication date: 20191227 |