A temperature control system for a packaging machine cabinet

Abstract

This utility model discloses a temperature control system for a packaging machine cabinet. The system includes a temperature sensing unit and a temperature control unit. The temperature sensing unit is housed within the cabinet, and its temperature signal output is electrically connected to the temperature signal receiving terminal of the packaging machine controller. The temperature control unit includes a first section located between the cabinet and the cigarette pack conveying channel. This first section includes an air outlet, which is also located within the cabinet. The temperature control signal output of the packaging machine controller is electrically connected to the temperature control signal receiving terminal of the temperature control unit. The temperature control unit controls the air outlet to output air at a preset temperature and flow rate based on the temperature control signal received from the temperature control signal receiving terminal. This utility model provides more accurate temperature detection, facilitating timely and effective temperature control by the temperature control unit, thus improving both temperature detection accuracy and temperature control efficiency.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a temperature control system for the electrical cabinet of a packaging machine. Background Technology

[0002] Traditional C800 cabinet air conditioners use a mechanical control system. A metal sensor deforms in response to temperature changes within the cabinet. When the deformation reaches a set position, the air conditioner compressor is activated, initiating cooling. When the temperature drops below the set value, the metal sensor returns to its original shape, deactivating the compressor and stopping cooling. The operating temperature is set by adjusting the physical position of the metal sensor. This method results in low accuracy in temperature detection and low efficiency in temperature control. Utility Model Content

[0003] This invention provides a temperature control system for a packaging machine cabinet to solve the problems of inaccurate temperature detection and low temperature control efficiency in the prior art.

[0004] A temperature control system for a packaging machine cabinet according to the present invention includes: a temperature sensing unit and a temperature control unit;

[0005] The temperature sensing unit is installed in the electrical cabinet and the temperature signal output terminal of the temperature sensing unit is electrically connected to the temperature signal receiving terminal of the packaging machine controller.

[0006] The temperature control unit includes a first section; the first section is located between the electrical cabinet and the cigarette pack conveying channel; the first section includes an air outlet, which is located in the electrical cabinet;

[0007] The temperature control signal output terminal of the packaging machine controller is electrically connected to the temperature control signal receiving terminal of the temperature control unit.

[0008] The temperature control unit is used to control the air outlet to output air at a preset temperature and preset flow rate based on the temperature control signal received by the temperature control signal receiver.

[0009] Optionally, the electrical cabinet includes a heating area; the temperature control unit also includes air ducts.

[0010] One end of the air duct is connected to the air outlet, and the other end is connected to the heat-generating area.

[0011] Optionally, the heating area includes at least a first heating area and a second heating area; the heating power of the first heating area is greater than the heating power of the second heating area.

[0012] The air supply pipeline includes a first air supply pipeline and a second air supply pipeline; the cross-sectional area of ​​the first air supply pipeline is larger than that of the second air supply pipeline.

[0013] One end of the first air supply duct is connected to the air outlet, and the other end is connected to the first heating area;

[0014] One end of the second air duct is connected to the air outlet, and the other end is connected to the second heating zone.

[0015] Optionally, the temperature sensing unit is placed in the area of ​​highest heat generation.

[0016] Optionally, the temperature control signal includes a first temperature signal and a second temperature signal; the first temperature signal is lower than the second temperature signal.

[0017] The packaging machine controller includes a differential unit, a first comparison unit, and a second comparison unit.

[0018] The temperature control signal output terminal includes a first temperature signal output terminal and a second temperature signal output terminal, both of which are electrically connected to the temperature control signal receiving terminal.

[0019] The differential unit includes a temperature signal receiving terminal, a preset temperature signal receiving terminal, and an actual temperature difference output terminal; the first comparison unit includes a first difference input terminal, a first preset difference input terminal, and a first temperature signal output terminal; the second comparison unit includes a second difference input terminal, a second preset difference input terminal, and a second temperature signal output terminal.

[0020] The actual temperature difference output terminal is electrically connected to the first difference input terminal and the second difference input terminal, respectively.

[0021] Optionally, the flow control output of the packaging machine controller is electrically connected to the flow control input of the temperature control unit.

[0022] Optionally, the packaging machine controller includes a third comparison unit; the third comparison unit includes a speed signal receiver, a preset speed receiver, and a temperature control signal output.

[0023] The speed signal receiver is electrically connected to the speed signal output of the tobacco pack conveying channel.

[0024] Optionally, the door closing signal output terminal of the electrical cabinet is electrically connected to the door closing signal input terminal of the packaging machine controller;

[0025] The temperature control system also includes a power supply and a relay; the power supply is electrically connected to the first contact of the relay, and the temperature control unit is electrically connected to the second contact of the relay; the control terminal of the relay is electrically connected to the door closing signal input terminal.

[0026] Optionally, the temperature control system may also include an audible and visual alarm and a display screen;

[0027] The audible and visual alarm is electrically connected to the packaging machine controller;

[0028] The display screen is electrically connected to the packaging machine controller.

[0029] Optionally, the temperature control unit also includes a second section; the second section is embedded in the electrical cabinet.

[0030] The technical solution of this utility model is to set a temperature control unit and a temperature sensing unit in the temperature control system, so that the temperature signal detected by the temperature sensing unit in real time is transmitted to the temperature control unit. The temperature sensing unit is installed inside the electrical cabinet, which makes the temperature detection more accurate, thereby facilitating the temperature control unit to control the temperature of the electrical cabinet in a timely and effective manner, improving the accuracy of temperature detection and the efficiency of temperature control.

[0031] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the first angle temperature control system provided according to an embodiment of the present utility model;

[0034] Figure 2 This is a connection diagram of the first temperature control system provided according to an embodiment of the present utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the first angle temperature control unit provided according to an embodiment of the present utility model;

[0036] Figure 4 This is a schematic diagram of the structure of the first angle temperature control unit provided according to an embodiment of the present utility model;

[0037] Figure 5 This is a schematic diagram of the structure of the second angle temperature control system provided according to an embodiment of the present utility model;

[0038] Figure 6 This is a connection diagram of the second temperature control system provided according to an embodiment of the present utility model;

[0039] Figure 7 This is a connection diagram of a third temperature control system provided according to an embodiment of the present utility model. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] Figure 1 This is a schematic diagram of the structure of the first angle temperature control system provided according to an embodiment of the present invention. Figure 2 This is a connection diagram of the first temperature control system provided according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of the first angle temperature control unit provided according to an embodiment of the present invention. Figure 4 This is a structural schematic diagram of the second angle temperature control unit provided according to an embodiment of the present utility model. (Combined with...) Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the temperature control system of the packaging machine cabinet includes:

[0043] Temperature sensing unit 1 and temperature control unit 2;

[0044] Temperature sensing unit 1 is installed in electrical cabinet 3 and the temperature signal output terminal of temperature sensing unit 1 is electrically connected to the temperature signal receiving terminal of packaging machine controller 4.

[0045] The temperature control unit 2 includes a first part 21; the first part 21 is located between the electrical cabinet 3 and the cigarette pack conveying channel 5; the first part 21 includes an air outlet 211, which is located in the electrical cabinet 3;

[0046] The temperature control signal output terminal of the packaging machine controller 4 is electrically connected to the temperature control signal receiving terminal of the temperature control unit 2.

[0047] The temperature control unit 2 is used to control the air outlet 211 to discharge air at a preset temperature and preset flow rate according to the temperature control signal received by the temperature control signal receiver.

[0048] The temperature sensing unit 1 is used to detect the real-time temperature in the electrical cabinet 3, and therefore is installed in the electrical cabinet 3. In some embodiments, the temperature sensing unit 1 can be a PT100 resistance temperature detector (RTD), which allows the temperature in the electrical cabinet 3 to be acquired in real time, facilitating temperature adjustment of the electrical cabinet 3. The temperature signal output terminal of the temperature sensing unit 1 is electrically connected to the temperature signal receiving terminal of the packaging machine controller 4, and the temperature signal measured by the temperature sensing unit 1 is input into the packaging machine controller 4.

[0049] The temperature control unit 2 can be used to regulate the temperature in the electrical cabinet 3 to prevent the cabinet 3 from overheating and damaging electrical components. To ensure the temperature control effect of the temperature control unit 2 while facilitating its setup, the temperature control unit 2 includes a first part 21 and a second part 22. The first part 21 is located between the electrical cabinet 3 and the cigarette pack conveying channel 5, and the second part 22, including an air outlet 211, is located in the electrical cabinet 3. This ensures that the temperature control unit 2 does not occupy too much space inside the electrical cabinet 3 while maintaining the temperature control effect.

[0050] Specifically, the temperature signal output terminal is electrically connected to the temperature signal receiving terminal, and the temperature control signal output terminal is electrically connected to the temperature control signal receiving terminal of the temperature control unit 2. The temperature control unit 2 receives the temperature signal from the temperature sensing unit 1 and outputs a temperature control signal according to the temperature signal, thereby controlling the air outlet 211 to output air at a preset temperature and preset flow rate.

[0051] It is understandable that the preset temperature and preset flow rate are related to the magnitude of the temperature signal, with the aim of quickly reducing the temperature in cabinet 3.

[0052] The technical solution of this utility model embodiment is to set a temperature control unit and a temperature sensing unit in the temperature control system, so that the temperature signal detected by the temperature sensing unit in real time is transmitted to the temperature control unit. The temperature sensing unit is installed inside the electrical cabinet, which makes the temperature detection more accurate, thereby facilitating the temperature control unit to control the temperature of the electrical cabinet in a timely and effective manner, improving the accuracy of temperature detection and the efficiency of temperature control.

[0053] Optional, Figure 5 This is a schematic diagram of the structure of the second angle temperature control system provided according to an embodiment of the present invention, as shown below. Figure 5 As shown, the electrical cabinet 3 includes a heating area 30; the temperature control unit 2 also includes an air duct 23.

[0054] One end of the air duct 23 is connected to the air outlet 211, and the other end is connected to the heat-generating area 30.

[0055] Since the electrical cabinet 3 contains different types of electrical components, the location of these electrical components is the heat-generating area 30. In order to quickly and specifically cool the heat-generating area 30, an air supply duct 23 is installed between the air outlet 211 and the heat-generating area 30 to directly deliver the cooled air from the air outlet 211 to the corresponding heat-generating area 30 for quick and specific cooling.

[0056] The technical solution of this utility model embodiment improves the cooling efficiency by setting an air supply pipe 23 between the heating area 30 and the air outlet 211, so that the cooling air output from the air outlet 211 can be directly delivered to the corresponding heating area 30.

[0057] Optional, continue to refer to Figure 5 As shown, the heating area 30 includes at least a first heating area 31 and a second heating area 32; the heating power of the first heating area 31 is greater than the heating power of the second heating area 32.

[0058] The air supply duct 23 includes a first air supply duct 231 and a second air supply duct 232; the cross-sectional area of ​​the first air supply duct 231 is larger than the cross-sectional area of ​​the second air supply duct 232.

[0059] One end of the first air supply duct 231 is connected to the air outlet 211, and the other end is connected to the first heating zone 31;

[0060] One end of the second air duct 232 is connected to the air outlet 211, and the other end is connected to the second heating zone 32.

[0061] Since different types of electrical components have different heating powers, the electrical cabinet 3 includes at least two heating zones 30 with different heating powers: a first heating zone 31 and a second heating zone 32. The heating power of the first heating zone 31 is greater than that of the second heating zone 32. Due to the different heating powers, air ducts 23 with different cross-sectional areas are used. This ensures that the heating zone 30 with higher heating power receives more cooling air per unit time than the heating zone 30 with lower heating power, thereby providing targeted cooling for the heating zones 30 with different heating powers and improving cooling efficiency.

[0062] Understandably, with a fixed airflow at the air outlet 211, the larger the cross-sectional area of ​​the air duct 23, the more cooling air the heating zone 30 receives. Setting the cross-sectional area of ​​the first air duct 231 to be larger than that of the second air duct 232 allows different heating zones 30 to be cooled in a targeted manner according to their heating power, thereby improving the cooling efficiency of the electrical cabinet 3.

[0063] Similarly, when the electrical cabinet 3 includes multiple heating areas 30 with different heating powers, air ducts 23 with different cross-sectional areas can also be set according to the heating power. This embodiment of the utility model does not limit this.

[0064] Optional, continue to refer to Figure 1 As shown, the temperature sensing unit 1 is located in the heating area 30 where the heating power is the greatest.

[0065] Specifically, the temperature sensing unit 1 is set to the heating area 30 with the highest heating power, and the temperature signal with the highest heating power is detected to see if it exceeds the threshold. When the temperature of the heating area 30 with the highest heating power exceeds the threshold, the temperature control unit 2 is activated to perform cooling.

[0066] It is understandable that placing the temperature sensing unit 1 in the heating area 30 with the highest heat generation power can detect the temperature signal exceeding the threshold in a timely manner, thereby avoiding the problem of rapid temperature rise of the electrical cabinet 3 causing damage to electrical components and achieving timely temperature control.

[0067] Optional, Figure 6 This is a connection diagram of the second temperature control system provided according to an embodiment of the present invention, as shown below. Figure 6 As shown, the temperature control signal includes a first temperature signal and a second temperature signal; the first temperature signal is lower than the second temperature signal.

[0068] The packaging machine controller includes a differential unit 41, a first comparison unit 42, and a second comparison unit 43.

[0069] The temperature control signal output terminal includes a first temperature signal output terminal 423 and a second temperature signal output terminal 433, both of which are electrically connected to the temperature control signal receiving terminal.

[0070] The differential unit 41 includes a temperature signal receiving terminal 411, a preset temperature signal receiving terminal 412, and an actual temperature difference output terminal 413; the first comparison unit 42 includes a first difference input terminal 421, a first preset difference input terminal 422, and a first temperature signal output terminal 423; the second comparison unit 43 includes a second difference input terminal 431, a second preset difference input terminal 432, and a second temperature signal output terminal 433.

[0071] The actual temperature difference output terminal 413 is electrically connected to the first difference input terminal 421 and the second difference input terminal 431, respectively.

[0072] The differential unit 41 has a temperature signal receiving end 411 for receiving temperature signals and a preset temperature signal receiving end 412 for receiving preset temperature signals, which can be pre-set threshold temperature signals for comparison with real-time temperature signals. The differential unit 41 performs differential processing on the temperature signal and the preset temperature signal and outputs the actual temperature difference signal to the first comparison unit 42 and the second comparison unit 43.

[0073] The actual temperature difference output terminal 413 is electrically connected to the first difference input terminal 421 and the second difference input terminal 431, respectively inputting the actual temperature difference signal into the first comparison unit 42 and the second comparison unit 43. The first preset difference input terminal 422 can be used to input a first preset temperature difference signal, and the second preset difference input terminal 432 can be used to input a second preset temperature difference signal. The first preset temperature difference signal and the second preset temperature difference signal can be two temperature signals of different magnitudes. By comparing the actual temperature difference signal with the first preset temperature difference signal and the second preset temperature difference signal respectively, a first temperature signal or a second temperature signal is output.

[0074] For example, the temperature signal received by the temperature signal receiver 411 is 50°C, and the preset temperature signal input by the preset temperature signal receiver 412 is 20°C. After processing by the differential unit 41, the actual temperature difference output terminal 413 outputs an actual temperature difference signal of 30°C to the first difference input terminal 421 and the second difference input terminal 431. The first preset temperature difference input terminal 422 inputs a first preset temperature difference signal of 20°C, and the second preset temperature difference input terminal 432 inputs a second preset temperature difference signal of 10°C. The first comparison unit 42 compares the actual temperature difference signal of 30°C with the first preset temperature difference signal of 20°C, and outputs a first temperature signal to the temperature control signal receiver to control the air outlet 211 to output air at the first temperature. When the second comparison unit 43 compares the actual temperature difference signal with the second preset temperature difference signal of 10°C, it outputs a second temperature signal to the temperature control signal receiver to control the air outlet 211 to output air at the second temperature. This embodiment of the utility model only uses the example of the actual temperature difference signal being greater than the first preset temperature difference signal, and is not limited thereto.

[0075] In some embodiments, the flow control output terminal of the packaging machine controller 4 is electrically connected to the flow control input terminal of the temperature control unit 2, so that the packaging machine controller 4 can also adjust the preset flow rate of the temperature control unit 2 according to the temperature signal, thereby adjusting the cooling rate.

[0076] The technical solution of this utility model embodiment, by setting a differential unit, a first comparison unit and a second comparison unit in the packaging machine controller, achieves the purpose of temperature control in stages based on the actual temperature difference. When the difference between the temperature signal and the preset temperature signal is too large, a lower first temperature is output, and when the difference between the temperature signal and the preset temperature signal is too small, a higher second temperature is output, thus balancing the efficiency of temperature control and the energy consumption of the temperature control system.

[0077] Optional, continue to refer to Figure 6 As shown, the packaging machine controller 4 includes a third comparison unit 44; the third comparison unit 44 includes a speed signal receiving terminal 441, a preset speed receiving terminal 442, and a temperature control signal output terminal;

[0078] The speed signal receiver 441 is electrically connected to the speed signal output terminal of the tobacco pack conveying channel 5.

[0079] When the conveying speed of the cigarette pack conveying channel 5 is greater, the heating efficiency of the corresponding electrical components in the electrical cabinet 3 will increase. Therefore, by setting the third comparison unit 44, the outlet temperature of the air outlet 211 can be adjusted according to the conveying speed of the cigarette pack conveying channel 5, thereby achieving rapid cooling.

[0080] Specifically, the speed signal receiver 441 is electrically connected to the speed signal output terminal of the cigarette pack conveying channel 5, and can receive the conveying speed signal of the cigarette pack conveying channel 5. The preset speed receiver 442 can be used to input a preset speed signal. When the transmitted speed signal is greater than the preset speed signal, it indicates that the heating power is too high and cooling is required. The temperature control unit 2 then controls the air outlet 211 to output air at a preset temperature and preset flow rate. When the transmitted speed signal is less than or equal to the preset speed signal, it indicates that the heating power will not affect the electrical components in the electrical cabinet 3, and no output signal is required.

[0081] Optional, Figure 7 This is a connection diagram of the third temperature control system provided according to an embodiment of the present utility model, as shown below. Figure 7 As shown, the door closing signal output terminal 331 of the electrical cabinet 3 is electrically connected to the door closing signal input terminal 451 of the packaging machine controller 4;

[0082] The temperature control system also includes a power supply 61 and a relay 62; the power supply 61 is electrically connected to the first contact of the relay 62, and the temperature control unit 2 is electrically connected to the second contact of the relay 62; the control terminal of the relay 62 is electrically connected to the door closing signal input terminal 451.

[0083] The power supply 61 powers the temperature control unit 2. The power supply 61 is electrically connected to the first contact of the relay 62, and the temperature control unit 2 is electrically connected to the second contact of the relay 62. The relay 62 controls the switching on and off of the circuit between the power supply 61 and the temperature control unit 2. The control terminal of the relay 62 is electrically connected to the door closing signal input terminal 451, and the door closing signal output terminal 331 of the electrical cabinet 3 is electrically connected to the door closing signal input terminal 451 of the packaging machine controller 4. This allows the packaging machine controller 4 to control whether the temperature control unit 2 is powered on and whether it can operate normally based on whether the door of the electrical cabinet 3 is closed.

[0084] For example, when the door of the electrical cabinet 3 is closed, the door closing signal output terminal 331 inputs a high-level signal to the door closing signal input terminal 451, and the door closing signal input terminal 451 inputs a high-level signal to the door closing signal input terminal 451, thereby controlling the first contact and the second contact to conduct, and the temperature control unit 2 works normally; when the door of the electrical cabinet 3 is open, the door closing signal output terminal 331 inputs a low-level signal to the door closing signal input terminal 451, and the door closing signal input terminal 451 inputs a low-level signal to the door closing signal input terminal 451, thereby controlling the first contact and the second contact to disconnect, and the temperature control unit 2 cannot work.

[0085] The technical solution of this utility model embodiment is to set a relay to electrically connect the door closing signal output terminal and the door closing signal input terminal, and the control terminal of the relay to the door closing signal input terminal, so that the packaging machine controller can select whether to start the temperature control unit according to the opening and closing of the cabinet door, thus ensuring the safety of the temperature control system.

[0086] Optional, continue to refer to Figure 1 and Figure 7 As shown, the temperature control system also includes an audible and visual alarm 71 and a display screen 72;

[0087] The audible and visual alarm 71 is electrically connected to the packaging machine controller 4;

[0088] The display screen 72 is electrically connected to the packaging machine controller 4.

[0089] The audible and visual alarm 71 can be used to trigger an audible and visual alarm when the temperature signal exceeds a threshold. The display screen 72 can be used to display the temperature in the electrical cabinet 3 in real time.

[0090] For example, the packaging machine controller 4 displays the temperature data of the electrical cabinet 3 on the display screen 72. Once the temperature of the electrical cabinet 3 exceeds the set alarm value, the packaging machine controller 4 controls the packaging machine to stop and displays the red message "Electrical cabinet 3 temperature over-temperature" on the display screen 72.

[0091] In some embodiments, the temperature control unit 2 further includes a diagnostic unit 81, which can be used to detect internal faults in the temperature control unit 2. The diagnostic unit 81 is electrically connected to the packaging machine controller 4. When the temperature control unit 2 malfunctions, the diagnostic unit 81 can send a fault signal to the packaging machine controller 4. The audible and visual alarm 71 can output an alarm signal, and the display screen 72 can output a fault signal to prompt the staff to handle the fault.

[0092] In some embodiments, the packaging machine controller 4 is also connected to the host computer 82, which can be used to monitor the operating status of the temperature control system and set parameters such as the working mode, set temperature, and temperature control hysteresis of the temperature control unit 2.

[0093] Optional, continue to refer to Figure 3 and Figure 4 As shown, the temperature control unit 2 also includes a second part 22, which is embedded in the electrical cabinet 3.

[0094] Since the space between the packaging machine control unit, the electrical cabinet 3 and the cigarette pack conveying channel 5 is small, the temperature control unit 2 also includes a second part 22, which is embedded in the electrical cabinet 3 to fix the position of the temperature control unit 2.

[0095] For example, the gap between the cigarette pack conveying channel 5 and the electrical cabinet 3 is fixed at only 120mm. Therefore, only the temperature control unit 2, including the second section 22, can be installed. The compressor can be placed in the second section 22, and the temperature control unit 2 is fixed by embedding the second section 22 into the electrical cabinet 3. During operation, air is discharged through the air outlet 211 to reduce the temperature in the electrical cabinet 3.

[0096] In some embodiments, the temperature control unit 2 also includes a temperature display screen and a button panel. The working mode, temperature, temperature control hysteresis and other parameters of the air conditioner can be set remotely through the packaging machine controller 4, or the parameters can be set using the temperature display screen and the button panel.

[0097] The technical solution of this utility model embodiment solves the problem that the temperature control unit cannot be installed because the distance between the electrical cabinet and the cigarette pack conveying channel is too close. By setting a second part and embedding the second part in the electrical cabinet, the temperature control unit can be fixedly installed.

[0098] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A temperature control system for a packaging machine cabinet, characterized in that, include: Temperature sensing unit and temperature control unit; The temperature sensing unit is installed in the electrical cabinet and the temperature signal output terminal of the temperature sensing unit is electrically connected to the temperature signal receiving terminal of the packaging machine controller. The temperature control unit includes a first section; the first section is disposed between the electrical cabinet and the cigarette pack conveying channel; the first section includes an air outlet, which is disposed in the electrical cabinet; The temperature control signal output terminal of the packaging machine controller is electrically connected to the temperature control signal receiving terminal of the temperature control unit. The temperature control unit is used to control the air outlet to discharge air at a preset temperature and preset flow rate according to the temperature control signal received by the temperature control signal receiver.

2. The temperature control system according to claim 1, characterized in that, The electrical cabinet includes a heating area; the temperature control unit also includes an air supply duct. One end of the air duct is connected to the air outlet, and the other end is connected to the heating area.

3. The temperature control system according to claim 2, characterized in that, The heating area includes at least a first heating area and a second heating area; the heating power of the first heating area is greater than the heating power of the second heating area. The air supply pipeline includes a first air supply pipeline and a second air supply pipeline; the cross-sectional area of ​​the first air supply pipeline is larger than the cross-sectional area of ​​the second air supply pipeline; One end of the first air supply duct is connected to the air outlet, and the other end is connected to the first heating area; One end of the second air duct is connected to the air outlet, and the other end is connected to the second heating area.

4. The temperature control system according to claim 2, characterized in that, The temperature sensing unit is located in the heating area where the heating power is the greatest.

5. The temperature control system according to claim 1, characterized in that, The temperature control signal includes a first temperature signal and a second temperature signal; the first temperature signal is lower than the second temperature signal. The packaging machine controller includes a differential unit, a first comparison unit, and a second comparison unit. The temperature control signal output terminal includes an output terminal for the first temperature signal and an output terminal for the second temperature signal, both of which are electrically connected to the temperature control signal receiving terminal. The differential unit includes a temperature signal receiving terminal, a preset temperature signal receiving terminal, and an actual temperature difference output terminal; the first comparison unit includes a first difference input terminal, a first preset difference input terminal, and an output terminal of the first temperature signal; the second comparison unit includes a second difference input terminal, a second preset difference input terminal, and an output terminal of the second temperature signal. The actual temperature difference output terminal is electrically connected to the first difference input terminal and the second difference input terminal, respectively.

6. The temperature control system according to claim 5, characterized in that, The flow control output terminal of the packaging machine controller is electrically connected to the flow control input terminal of the temperature control unit.

7. The temperature control system according to claim 1, characterized in that, The packaging machine controller includes a third comparison unit; the third comparison unit includes a speed signal receiving terminal, a preset speed receiving terminal, and a temperature control signal output terminal; The speed signal receiving end is electrically connected to the speed signal output end of the cigarette pack conveying channel.

8. The temperature control system according to claim 1, characterized in that, The door closing signal output terminal of the electrical cabinet is electrically connected to the door closing signal input terminal of the packaging machine controller; The temperature control system also includes a power supply and a relay; the power supply is electrically connected to the first contact of the relay, and the temperature control unit is electrically connected to the second contact of the relay; the control terminal of the relay is electrically connected to the door closing signal input terminal.

9. The temperature control system according to claim 1, characterized in that, The temperature control system also includes an audible and visual alarm and a display screen; The audible and visual alarm is electrically connected to the packaging machine controller; The display screen is electrically connected to the packaging machine controller.

10. The temperature control system according to claim 1, characterized in that, The temperature control unit also includes a second part; the second part is embedded in the electrical cabinet.

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