Control device for small packet transparent paper ironing heater

Abstract

The utility model discloses a control device for a packet transparent paper ironing heater. The control device comprises a CPU controller, an analog signal processing module, a signal acquisition module, a voltage-frequency conversion module, a thermocouple, a digital signal output module, a signal transmission module, an intelligent solid-state relay, a thermal resistor and a human-computer interaction interface. According to the utility model, the problem of inaccurate temperature control in the operation process of the packaging unit is well solved, and the ironing effect of the heater can be effectively improved, so that the packaging quality of cigarette packets can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco packaging machines, and particularly relates to a control device for a small packet transparent paper ironing heater. Background Art

[0002] On the current automatic tobacco packaging production line, the small packet transparent paper ironing and heating device all adopts an independent external PLC control system, which is separated from the device's own system, resulting in a large temperature control deviation and affecting the production efficiency of the unit and the packaging quality of cigarette packets. Content of the Utility Model

[0003] The utility model precisely aims to avoid the deficiencies of the above-mentioned prior art, and provides a control device for a small packet transparent paper ironing heater of a cigarette packaging machine, with the expectation of achieving accurate and stable temperature control of the external small packet transparent paper ironing and heating device of the packaging machine through an integrated temperature control system integrated into the device's own system.

[0004] The utility model adopts the following technical solutions to solve the technical problems:

[0005] The control device for a small packet transparent paper ironing heater of the utility model is characterized in that it includes a CPU controller, an analog signal processing module, a signal acquisition module, a voltage-frequency conversion module, a thermocouple, a digital signal output module, a signal transmission module, an intelligent solid-state relay, a thermal resistor, and a human-machine interface;

[0006] The thermocouple and the thermal resistor are installed on the body of the ironing heater;

[0007] The output signal of the thermocouple is connected to the input interface of the voltage-frequency conversion module, and is used to transmit the temperature signal of the ironing heater collected in real time to the voltage-frequency conversion module for frequency conversion, and obtain a frequency signal;

[0008] The output signal of the voltage-frequency conversion module is connected to the input terminal of the signal acquisition module, and is used to transmit the converted frequency signal;

[0009] The signal acquisition module is connected to the analog signal processing module, and is used to send the frequency signal to the analog signal processing module for analog-to-digital conversion, and obtain the real-time temperature value;

[0010] The analog signal processing module is connected to the CPU controller through the GD-LAN bus, and is used to transmit the real-time temperature value to the CPU controller. The CPU controller controls and adjusts the temperature of the ironing heater, and sends corresponding control instructions to the digital signal output module to reach the desired temperature value;

[0011] The CPU controller is connected to the human-machine interface through a coaxial cable and is used to display various temperature values during the temperature control adjustment process;

[0012] The digital signal output module is connected to the CPU controller through the GD-LAN bus and is used to receive the control instructions issued by the CPU controller;

[0013] The signal transmission module is connected to the digital signal output module and is used to convert the control instructions into high and low level signals for output;

[0014] The input enable terminal of the intelligent solid-state relay is connected to the output terminal of the signal transmission module and is used to receive the high and low level signals to control the on and off of the intelligent solid-state relay;

[0015] The power output terminal of the intelligent solid-state relay is connected to the thermal resistor and is used to control the on or off of the working power supply of the thermal resistor to realize the heating or stop heating of the ironing heater.

[0016] The present utility model has the following advantages compared with the prior art:

[0017] The present utility model can well solve the problem of inaccurate temperature control during the operation of the packaging unit, effectively improve the ironing effect of the heater, and thus improve the cigarette packet packaging quality. Description of the Drawings

[0018] Figure 1 is the functional diagram of the control system of the present utility model; Detailed Embodiment

[0019] The following is a detailed description of the embodiments of the present utility model. The embodiments are implemented on the premise of the technical solution of the present utility model, and the detailed implementation manners and specific operation processes are given. However, the protection scope of the present utility model is not limited to the following embodiments.

[0020] In this embodiment, the hardware design function of a control device for a small packet transparent paper ironing heater of a cigarette packaging machine is as Figure 1 shown, and includes: a CPU controller, an analog signal processing module, a signal acquisition module, a voltage-frequency conversion module, a thermocouple, a digital signal output module, a signal transmission module, an intelligent solid-state relay, a thermal resistor, and a human-machine interface.

[0021] Both the thermocouple and the thermal resistor are installed on the body of the ironing heater.

[0022] Connect the output signals of the six thermocouples deployed in the upper left, middle left, lower left, upper right, middle right, and lower right channels to the input interface of the voltage-frequency conversion module, which is used to transmit the temperature signals of the ironing heater collected in real time to the voltage-frequency conversion module for frequency conversion. That is, convert the voltage signal of the thermocouple into a frequency signal output with a corresponding proportional relationship. In this example, 0℃ - 750℃ corresponds to 0V - 0.0423V, and 0V - 0.0423V corresponds to 1kHz - 2kHz. The conversion of the voltage signal into a frequency signal for transmission is more stable and accurate, avoiding the detection error caused by the voltage drop generated when the voltage signal passes through a long-distance line. Moreover, the frequency signal has strong anti-interference ability and stable transmission and is not easily affected by the transmission line, ensuring the accuracy of temperature measurement.

[0023] Connect the output frequency signal of the voltage-frequency conversion module to the input terminal of the signal acquisition module for transmitting the converted frequency signal;

[0024] Connect the pins of the signal acquisition module to the analog signal processing module, which is used to send the frequency signal to the analog signal processing module for analog-to-digital conversion processing to obtain the real-time temperature value.

[0025] Connect the analog signal processing module to the CPU controller through the GD-LAN bus, which is used to transmit the real-time temperature value to the CPU controller. The CPU controller performs temperature control and adjustment, and sends corresponding control instructions to the digital signal output module to reach the desired temperature value.

[0026] Connect the CPU controller to the human-machine interface through a coaxial cable for displaying temperature-related parameters.

[0027] Connect the digital signal output module to the CPU controller through the GD-LAN bus for receiving the instruction results issued by the CPU controller. When the CPU controller determines that heating is required, it immediately sets the state of the corresponding output point of the digital signal output module; when the CPU controller determines that heating is not required, it immediately resets the state of the corresponding output point of the digital signal output module.

[0028] Connect the signal transmission module to the digital signal output module, which is used to convert the digital signal instructions of the digital signal output module into high and low level signals for output. After the digital quantity signal output module receives the output set command of the CPU controller, it outputs a high level signal at this point. After the digital quantity signal output module receives the output reset command of the CPU controller, it outputs a low level signal at this point.

[0029] The input enabling terminal of the intelligent solid-state relay is connected to the output terminal of the signal transmission module, which is used to control the on / off of the intelligent solid-state relay according to the high and low level signals of the signal transmission module. When the signal transmission module outputs a high level, the intelligent solid-state relay enters the enabling state and its output terminal conducts; when the signal transmission module outputs a low level, the intelligent solid-state relay does not enter the enabling state and its output terminal disconnects.

[0030] The thermal resistor is connected to the power output terminal of the intelligent solid-state relay, which is used to turn on or off the working power supply of the thermal resistor to achieve the heating or stop heating of the ironing heater. In this embodiment, the rated working voltage of the thermal resistors in the upper left, lower left, upper right, and lower right channels is AC 110V, and the power is 250W. The rated working voltage of the thermal resistors in the middle left and middle right channels is AC 110V, and the power is 350W. The intelligent solid-state relay is a dedicated solid-state relay for the G.D packaging unit, and its function is to control the on / off of the AC 110V power supply of the heater to supply power to the thermal resistor. When the intelligent solid-state relay is in the enabling state, it conducts the power supply of the heater, making the heater in a continuous heating state. When the temperature reaches the set temperature value, the power supply of the heater is disconnected, and the heater stops heating, completing the heating control process of the heater.

[0031] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control device for a small package of transparent paper ironing heater, characterized in that: Including CPU controller, analog signal processing module, signal acquisition module, voltage-frequency conversion module, thermocouple, digital signal output module, signal transmission module, intelligent solid-state relay, thermal resistor, and human-computer interaction interface; The thermocouple and the thermal resistor are mounted on the body of the ironing heater; The output signal of the thermocouple is connected to the input interface of the voltage-frequency conversion module, so as to transmit the temperature signal of the ironing heater collected in real time to the voltage-frequency conversion module for frequency conversion and obtain a frequency signal; The output signal of the voltage-frequency conversion module is connected to the input terminal of the signal acquisition module for transmitting the converted frequency signal; The signal acquisition module is connected to the analog signal processing module and is used to send the frequency signal to the analog signal processing module for analog-to-digital conversion and obtain a real-time temperature value; The analog signal processing module is connected to the CPU controller via the GD-LAN bus, and is used to transmit the real-time temperature value to the CPU controller, and the CPU controller controls and adjusts the temperature of the ironing heater, and sends corresponding control instructions to the digital signal output module to achieve the desired temperature value; The CPU controller is connected to the human-computer interaction interface via a coaxial cable and is used to display various temperature values ​​during the temperature control and adjustment process; The digital signal output module is connected to the CPU controller via the GD-LAN bus and is used to receive control instructions issued by the CPU controller; The signal transmission module is connected to the digital signal output module and is used to convert the control instruction into high and low level signal outputs; The input enable terminal of the intelligent solid-state relay is connected to the output terminal of the signal transmission module, and is used to receive the high and low level signals to control the on and off of the intelligent solid-state relay; The power output end of the intelligent solid-state relay is connected to the thermal resistor and is used to control the working power of the thermal resistor to be turned on or off, so as to realize heating or stopping heating of the ironing heater.

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