Temperature constant system in production process of wear-resistant paper
阅读说明：本技术 一种耐磨纸生产过程中的温度恒定系统 (Temperature constant system in production process of wear-resistant paper ) 是由 程波 于 2019-08-19 设计创作，主要内容包括：一种耐磨纸生产过程中的温度恒定系统,通过在原料制备机、抄前浆池、高位箱、冲浆泵、阶梯扩散器、过斜网抄选机、压榨机、烘干机、切割成型机上安装温度恒定系统,如果对应设备上的温度低于设定值时,其对应的温度恒定系统内的加热丝EH加热升温,当对应设备的温度上升到距设定温度还有一段温度时,加热丝EH的两端电压降低,升温速度变慢。当对应设备上的温度达到设定温度时,加热丝EH停止加热。当温度下降后,加热丝EH通电加热,温度上升,周而复始,使得对应设备的温度基本稳定。本发明结构简单,在生产耐磨纸时,将环境温度控制在合适的范围,既可以提高耐磨纸的抗压强度,又可以降低由于温度过低造成的耐磨纸易断裂的情况发生。(A temperature constant system in the production process of wear-resistant paper is characterized in that the temperature constant system is arranged on a raw material preparation machine, a pulp before papermaking pool, a high-level box, a fan pump, a step diffuser, an inclined wire pulp selecting machine, a squeezer, a dryer and a cutting forming machine, if the temperature of corresponding equipment is lower than a set value, a heating wire EH in the corresponding temperature constant system is heated and heated, and when the temperature of the corresponding equipment is increased to a certain temperature away from the set temperature, the voltage at two ends of the heating wire EH is reduced, and the heating speed is slowed down. When the temperature on the corresponding device reaches the set temperature, the heating wire EH stops heating. When the temperature is reduced, the heating wire EH is electrified and heated, the temperature is raised and repeated, and the temperature of the corresponding equipment is basically stable. The invention has simple structure, controls the environment temperature in a proper range when producing the wear-resistant paper, can improve the compression strength of the wear-resistant paper and can reduce the occurrence of easy breakage of the wear-resistant paper caused by over-low temperature.)
1. The utility model provides a temperature constancy system in wear-resisting paper production process, includes the workshop to and install the production facility that corresponds in every in-process inside the workshop, the production process is: raw materials preparation process, mixed thick liquids process, cross inclined wire process of copying, squeeze process, stoving process, cutting process, its characterized in that, the production facility that production process corresponds is raw materials preparation machine, the thick liquid pond before copying, high-order case, fan pump, ladder diffuser, cross inclined wire machine of copying, squeezer, drying-machine, cutting make-up machine, installs the constancy of temperature system respectively on raw materials preparation machine, the thick liquid pond before copying, high-order case, fan pump, ladder diffuser, cross inclined wire machine of copying, squeezer, drying-machine, cutting make-up machine.
2. The temperature stabilizing system in the production process of wear-resistant paper as claimed in claim 1, wherein the temperature stabilizing system comprises resistors R1-R5, potentiometers RP 1-RP 3, thermistors Rt, electrolytic capacitors C1, capacitors C2, diodes D1-D2, voltage stabilizing diodes DW 1-DW 2, light emitting diodes LED 1-LED 2, triodes BG 1-BG 2, thyristors VT, integrated circuits IC 1-IC 2, relays J1 and normally closed contacts J1-1 thereof, relays J2 and normally closed contacts J2-1 thereof, heating wires EH, transformers B, rectifier stacks UR, and power switches SA;
an input coil of a transformer B is connected between a live wire and a zero wire of a 220V alternating current power supply through a power switch SA, a normally closed contact J2-1, a heating wire EH and a thyristor VT of a relay J2 are connected in series and then connected between the live wire and the zero wire of the 220V alternating current power supply, wherein a cathode of the thyristor VT is connected with the zero wire, an output coil of the transformer B is connected with 1 pin and 2 pins of a rectifier stack UR, 4 pins of the rectifier stack UR are grounded, 3 pins of the rectifier stack UR are connected with 1 pin of an integrated circuit IC1, an anode of an electrolytic capacitor C1 is connected with 3 pins of the rectifier stack UR, a cathode of the electrolytic capacitor is grounded, a resistor R1 and a light emitting diode LED1 are connected in series and then connected between 3 pins of the rectifier stack UR and the ground, a cathode of the light emitting diode LED 1; a resistor R2 is connected between the pin 3 of the integrated circuit IC1 and the pin 3 of the integrated circuit IC2, a resistor R5 is connected in parallel with a normally closed contact J1-1 of a relay J1 and then connected in series with a potentiometer RP3 and then connected between the pin 3 of the integrated circuit IC1 and the gate of the thyristor VT, a potentiometer RP1 is connected in series with a zener diode DW1 and then connected between the pin 3 of the integrated circuit IC1 and ground, wherein the anode of the zener diode DW1 is grounded, the potentiometer RP2 and the zener diode DW2 are connected in series and then connected between the pin 3 of the integrated circuit IC1 and ground, wherein the anode of the zener diode DW2 is grounded, a diode D2 and a relay J2 are connected in parallel and then connected between the pin 3 of the integrated circuit IC2 and the collector of the triode BG2, wherein the cathode of the diode D2 and the collector of the integrated circuit J2 are connected in parallel and then connected between the pin 3 of the triode BG2, and the collector of the integrated circuit IC2 is connected with the integrated circuit 2, pin 3 of integrated circuit IC1 to pin 8 of integrated circuit IC 2;
the thermistor Rt is connected between the pin 3 of the integrated circuit IC2 and the ground, the capacitor C2 is connected between the gate of the thyristor VT and the ground, the resistor R3 is connected between the pin 1 of the integrated circuit IC2 and the base of the triode BG1, the collector of the triode BG1 is connected with the anode of the diode D1, and the emitter is grounded; the resistor R4 is connected between the pin 7 of the integrated circuit IC2 and the base electrode of the triode BG2, the collector electrode of the triode BG2 is connected with the anode of the diode D2, the emitter electrode of the triode BG2 is connected with the anode of the light-emitting diode LED2, and the cathode of the light-emitting diode LED2 is grounded; the 2 pin of the integrated circuit IC2 is connected with the cathode of the voltage stabilizing diode DW1, the 3 pin and the 5 pin are connected with the thermistor Rt, the 4 pin is grounded, and the 6 pin is connected with the cathode of the voltage stabilizing diode DW 2.
3. The system for keeping temperature constant in the production process of wear-resistant paper, according to claim 2, is characterized in that the integrated circuit IC1 is of type 7812, and the integrated circuit IC2 is of type LM 358.
4. Temperature constancy system IN the production of wear-resistant paper according to claim 2, characterized IN that the diodes D1, D2 are of the type IN 4007.
5. The temperature constant system in the production process of the wear-resistant paper as claimed in claim 2, wherein the triodes BG1 and BG2 are NPN tube type with model number of 3DG 12.
6. The system for keeping constant the temperature in the production process of the wear-resistant paper as claimed in claim 2, wherein the model of the thyristor VT is KP 10-20.
7. The system for keeping the temperature constant in the production process of wear-resistant paper according to claim 2, wherein the voltage stabilizing diode DW1 has a voltage stabilizing value of 6V, and the voltage stabilizing diode DW2 has a voltage stabilizing value of 9V.
8. Temperature constancy system in the production of wear-resistant paper according to claim 2, characterized in that the power of the heating wire EH is 200W.
Technical Field
The invention relates to wear-resistant paper, in particular to a temperature constant system in the production process of wear-resistant paper, and belongs to the technical field of temperature control in wear-resistant paper production.
Background
The wear-resistant paper is special surface paper, is special paper for manufacturing thermosetting decorative laminated boards, is a decorative material with wide application, is widely used for furniture manufacturing, vehicles, ships, airplanes, floors, counters, interior decoration of buildings and the like, the market of the wear-resistant paper is very large, but because some factors cause the wear-resistant paper to fail to meet the technical index requirements in the production process, the yield is reduced, for example, due to temperature factors, if the environment temperature is too high when the wear-resistant paper is produced, the strength of the produced wear-resistant paper is not enough, namely the compressive strength is poor, if the environment temperature is too low when the wear-resistant paper is produced, the produced wear-resistant paper is too hard and easy to break, and the yield of the wear-resistant paper is reduced in both high-temperature environment and low-temperature environment.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a temperature constant system in the production process of wear-resistant paper, which has a simple structure, and can control the environment temperature in a proper range when the wear-resistant paper is produced, thereby not only improving the compressive strength of the wear-resistant paper, but also reducing the occurrence of the condition that the wear-resistant paper is easy to break due to too low temperature.
In order to achieve the above object, the present invention provides a temperature stabilizing system in a wear-resistant paper production process, comprising a production workshop and corresponding production equipment installed inside the production workshop, wherein the production process comprises: raw materials preparation process, mixed thick liquids process, cross inclined wire process of checking, squeeze process, drying process, cutting process, the production facility that production process corresponds is raw materials preparation machine, the thick liquid pond before checking, elevated tank, fan pump, ladder diffuser, cross inclined wire machine of checking, squeezer, drying-machine, cutting make-up machine, installs the constancy of temperature system respectively on raw materials preparation machine, the thick liquid pond before checking, elevated tank, fan pump, ladder diffuser, cross inclined wire machine of checking, squeezer, drying-machine, cutting make-up machine.
The temperature constant system comprises resistors R1-R5, potentiometers RP 1-
an input coil of a transformer B is connected between a live wire and a zero wire of a 220V alternating current power supply through a power switch SA, a normally closed contact J2-1, a heating wire EH and a thyristor VT of a relay J2 are connected in series and then connected between the live wire and the zero wire of the 220V alternating current power supply, wherein a cathode of the thyristor VT is connected with the zero wire, an output coil of the transformer B is connected with 1 pin and 2 pins of a rectifier stack UR, 4 pins of the rectifier stack UR are grounded, 3 pins of the rectifier stack UR are connected with 1 pin of an integrated circuit IC1, an anode of an electrolytic capacitor C1 is connected with 3 pins of the rectifier stack UR, a cathode of the electrolytic capacitor is grounded, a resistor R1 and a light emitting diode LED1 are connected in series and then connected between 3 pins of the rectifier stack UR and the ground, a cathode of the light
the thermistor Rt is connected between the
The model of the integrated circuit IC1 is 7812, and the model of the integrated circuit IC2 is LM 358.
The type of the diodes D1, D2 is IN 4007.
The triodes BG1 and BG2 are NPN tube type with model number of 3DG 12.
The model number of the thyristor VT is KP 10-20.
The zener diode DW1 has a regulated value of 6V and the zener diode DW2 has a regulated value of 9V.
The power of the heating wire EH is 200W.
Compared with the prior art, the constant temperature systems are respectively arranged on the raw material preparation machine, the pulp before copying pool, the high-level box, the fan pump, the step diffuser, the inclined wire copying machine, the squeezer, the dryer and the cutting forming machine, if the temperature of 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 of the corresponding equipment rises to a certain temperature away from the set temperature, the resistance is increased, the charging rate of the capacitor is reduced, the conduction angle of the thyristor VT is reduced, the voltage at two ends of the heating wire EH is reduced, the current is reduced, and the temperature raising speed is reduced. When the temperature on the corresponding device reaches the set temperature, the heating wire EH stops heating. When the temperature drops, the thyristor VT is triggered and conducted again, the heating wire EH is electrified and heated, the temperature rises, and the process is repeated, so that the temperature of the corresponding equipment is basically stable. The invention has the advantages of simple structure, and can control the environmental temperature in a proper range when producing the wear-resistant paper, thereby not only improving the compressive strength of the wear-resistant paper, but also reducing the occurrence of easy breakage of the wear-resistant paper caused by over-low temperature.
Drawings
FIG. 1 is a schematic structural diagram of a process for producing the wear-resistant paper of 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 stabilizing system in a wear-resistant paper production process comprises a production workshop and corresponding production equipment installed in each process inside the production workshop, wherein the production process comprises the following steps: raw materials preparation process, mixed thick liquids process, cross inclined wire process of checking, squeeze process, drying process, cutting process, the production facility that production process corresponds is raw materials preparation machine, the thick liquid pond before checking, elevated tank, fan pump, ladder diffuser, cross inclined wire machine of checking, squeezer, drying-machine, cutting make-up machine, installs the constancy of temperature system respectively on raw materials preparation machine, the thick liquid pond before checking, elevated tank, fan pump, ladder diffuser, cross inclined wire machine of checking, squeezer, drying-machine, cutting make-up machine.
The temperature constant system comprises resistors R1-R5, potentiometers RP 1-
An input coil of a transformer B is connected between a live wire and a zero wire of a 220V alternating current power supply through a power switch SA, a normally closed contact J2-1, a heating wire EH and a thyristor VT of a relay J2 are connected in series and then connected between the live wire and the zero wire of the 220V alternating current power supply, wherein a cathode of the thyristor VT is connected with the zero wire, an output coil of the transformer B is connected with 1 pin and 2 pins of a rectifier stack UR, 4 pins of the rectifier stack UR are grounded, 3 pins of the rectifier stack UR are connected with 1 pin of an integrated circuit IC1, an anode of an electrolytic capacitor C1 is connected with 3 pins of the rectifier stack UR, a cathode of the electrolytic capacitor is grounded, a resistor R1 and a light emitting diode LED1 are connected in series and then connected between 3 pins of the rectifier stack UR and the ground, a cathode of the light
the thermistor Rt is connected between the
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 a power switch SA is pressed, 220V mains supply is subjected to voltage reduction through a transformer B, rectification through a rectifier stack UR, filtering through an electrolytic capacitor C1 and voltage stabilization through a voltage stabilization integrated circuit IC1 to obtain 12V direct current voltage, and the 12V direct current voltage is supplied to a control circuit to work. If the temperature of the corresponding equipment is low at the beginning, the resistance value of the thermistor Rt is small, the voltages of the
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