CN212764686U - Extruder barrel temperature adjusting device - Google Patents

Abstract

The utility model provides an extruder barrel temperature regulation apparatus, includes host computer, programmable logic controller, analog output module, analog input module, pressure regulating module, extruder barrel thermal resistance, extruder barrel heating member. The upper computer is connected with the programmable logic controller through a communication cable, the programmable logic controller, the analog input module and the analog output module are integrally formed, the analog output module is connected with the pressure regulating module through a shielded cable, and the pressure regulating module is connected with the heating body of the extruder barrel through a heat-resistant cable. The thermal resistor of the extruder cylinder feeds back a temperature signal to the analog quantity input module, and the temperature feedback control is utilized to regulate the output of the heating body power of the extruder cylinder. The pressure regulating module is used for regulating the heating temperature of the extruder cylinder, so that the impact of instantaneous current on a heating body of the extruder cylinder is reduced, the service life of the heating body of the extruder cylinder is prolonged, and the energy consumption is reduced.

Description

Extruder barrel temperature adjusting device

Technical Field

The utility model relates to an extruder heating control field, in particular to lithium ion diaphragm trade extruder barrel temperature regulation apparatus.

Background

At present, the heating body heating technology is applied to the extruder in the lithium ion diaphragm industry, the product process of the diaphragm has very high requirements on temperature control precision, and the control of the temperature directly influences the performance of the product. The poor temperature control can easily cause the uneven plasticization of the diaphragm or increase black spots, and directly influence the performance and the qualification rate of the diaphragm. The traditional heating mode is to adopt a contactor switch for heating control or a solid relay with switching value for heating control of a heating body of a machine barrel of the extruder. In the control mode, the heating power cannot be adjusted, so that when the operation power of a heating body of the extruder barrel is constant, the temperature is linearly increased, and when the heating body is closed, the temperature is linearly decreased, the difficulty of temperature control is increased, and the direct result is that the startup time is increased. When the temperature of the extruder cylinder changes, the temperature adjusting system cannot quickly stabilize the temperature to a set value; and the instantaneous current generated when the solid relay of switching value is switched on and off is very large, so that the impact on a heating body of a machine barrel of the extruder is increased, the service life is greatly reduced, and the operation rate of equipment is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a accuse temperature ability reinforce, and can prolong extruder barrel heating member life, improve equipment operation rate's extruder barrel temperature regulation apparatus.

The technical scheme of the utility model is that: the utility model provides an extruder barrel temperature regulation apparatus, includes host computer, programmable logic controller, analog output module, analog input module, pressure regulating module, extruder barrel thermal resistance, extruder barrel heating member. The upper computer is connected with the programmable logic controller through a communication cable, the programmable logic controller, the analog quantity input module and the analog quantity output module are integrally formed, the analog quantity output module is connected with the pressure regulating module through a shielding cable, the pressure regulating module is connected with the heating body of the machine barrel of the extruder through a heat-resistant cable, and the analog quantity input module is connected with the thermal resistor of the machine barrel of the extruder through the heat-resistant cable. The actual temperature is fed back to the analog input module through the thermal resistor of the extruder barrel, and the power output of the pressure regulating module is regulated and controlled by utilizing temperature feedback.

As the utility model discloses preferred technical scheme, the pressure regulating module uses silicon controlled solid state relay to this silicon controlled solid state relay adopts analog quantity control's mode to adjust.

As the preferable technical proposal of the utility model, the heating body of the extruder cylinder is made of variable resistance material.

The temperature setting value of the extruder cylinder and the actual temperature value of the extruder cylinder in the extruder cylinder temperature adjusting device can be accurately reflected on the picture of an upper computer, the actual temperature value of the extruder cylinder is processed through a program in a programmable logic controller and an analog quantity signal is output, the heating power of a heating body of the extruder cylinder is controlled through controlling a silicon controlled solid state relay, and the temperature can be quickly responded and accurately adjusted even if the working condition environment changes. The extruder barrel is generally divided into 1-6 heating zones according to different process conditions of the diaphragm product. Because the pressure regulating module, the heating body of the extruder cylinder and the thermal resistance of the extruder cylinder are in one-to-one correspondence, each heating area can quickly respond without being influenced by other areas. The continuous and stable output of the heating body of the extruder cylinder forms a harmonious working environment, the impact of instantaneous current on the heating body of the extruder cylinder is reduced, and the service life of the heating body of the extruder cylinder is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a main circuit diagram of the present invention.

Fig. 3 is a communication diagram of the present invention.

Fig. 4 is a temperature feedback diagram of the present invention.

Fig. 5 is a heating control diagram of the present invention.

In the figure, 1, a circuit breaker, 2, a fuse core, 3, a voltage regulating module, 4, a heating body of a machine barrel of an extruder, 5, a thermal resistor of the machine barrel of the extruder, 6, an analog input module and 7, an analog output module are arranged.

Detailed Description

The following description of the present invention is made with reference to the accompanying drawings:

as shown in fig. 1, when the upper computer inputs the set temperature value of the extruder cylinder, the upper computer uploads the set temperature value of the extruder cylinder to the programmable logic controller. Meanwhile, the extruder cylinder thermal resistor transmits the actual temperature value of the extruder cylinder into the programmable logic controller through the analog input module to participate in operation together with the set temperature value of the extruder cylinder, and the programmable logic controller transmits the temperature compensation value to the pressure regulating module through the analog output module to regulate the power of a heating body of the extruder cylinder. Meanwhile, the temperature compensation value is continuously adjusted through negative feedback adjustment of the thermal resistor of the extruder cylinder, so that the actual temperature value of the extruder cylinder slowly approaches to the set temperature value of the extruder cylinder.

As shown in fig. 2, the heating body 4 of the extruder barrel is controlled by the pressure regulating module 3, and the main circuit is protected by the circuit breaker 1 and the fuse core 2 together to prevent the pressure regulating module 3 and the heating body 4 of the extruder barrel from being burnt by overcurrent.

As shown in fig. 3, the programmable logic controller, the analog output module and the analog input module are connected as a whole, and the upper computer is connected with the programmable logic controller for bidirectional communication through a communication cable.

As shown in fig. 4, the extruder barrel thermal resistor 5 is a three-wire thermal resistor, and is connected to the analog input block via a heat-resistant cable.

As shown in fig. 5, the analog quantity output module 7 is connected with the pressure regulating module 3 through a shielded cable, and the analog quantity output module 7 outputs an analog signal to control the pressure regulating module 3 to regulate the power of the heating body of the extruder cylinder.

The utility model discloses after using, the stable production of start 1 month to average power consumption and the barrel temperature statistics of analog quantity and switching value mode control extruder barrel heating member are as follows:

the precision of the analog quantity temperature control of the voltage regulating module is far higher than the precision of the temperature control of the switching value, and the temperature fluctuation is small; and the average power consumption is reduced by 17%.

The stable production at the start-up time is 1 month, the statistics of the rising quantity of the resistance value of the heating body of the machine barrel of the extruder and the damage quantity of the heating body of the machine barrel of the extruder are as follows:

control mode	Total number of heating elements of extruder cylinder	Number of resistance value rises of heating body of extruder barrel	Damaged number of heating members of extruder barrel
				Analog quantity	18	2	0
Switching value	18	6	3

The resistance value rising quantity and the damage quantity of the heating body of the machine barrel of the extruder during the analog quantity temperature control of the pressure regulating module are less than the switch quantity temperature control mode, so that the service life of the heating body of the machine barrel of the extruder is prolonged.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention, and any modification, equivalent replacement or change made by the technical solution and the inventive concept of the present invention within the technical scope of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides an extruder barrel temperature regulation apparatus which characterized in that: including host computer, programmable logic controller, analog output module, analog input module, pressure regulating module, extruder barrel thermal resistance, extruder barrel heating member, host computer and programmable logic controller pass through communication cable two-way and link to each other, programmable logic controller, analog output module and analog input module integrated into one piece, analog output module passes through the shielded cable and links to each other with the pressure regulating module, the pressure regulating module passes through heat-resisting cable and is connected with the extruder barrel heating member, analog input module passes through heat-resisting cable and is connected with extruder barrel thermal resistance.

2. The extruder barrel thermostat of claim 1 wherein said voltage regulation module uses thyristor solid state relays.

3. The extruder barrel thermostat of claim 2 wherein said thyristor solid state relay uses analog control.

4. The extruder barrel thermostat of claim 1 wherein said extruder barrel heater is a varistor type material.

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