Temperature-controlled hot stripping pliers and temperature control method thereof

Abstract

The application provides a temperature control hot stripping pliers and a temperature control method thereof. The temperature control hot stripping pliers comprises a temperature control device, a handle device is connected to the temperature control device, a control device is arranged in the temperature control device, the handle device comprises a plier handle, a wire slot is formed in the plier handle, a thermocouple wire and an enameled wire are arranged in the wire slot, one end of the thermocouple wire and one end of the enameled wire are placed in the same wire slot and extend to a terminal lug, the other end of the thermocouple wire is welded with the plier handle to form a thermocouple, the other end of the enameled wire is welded with a heating core assembly, the heating core assembly is installed in a heating core mounting hole formed in a jaw, the heating core assembly is connected with the control device, and the terminal lug is connected with the control device through a wire. The thermocouple of the application continuously collects the temperature of the jaw, based on a PID closed-loop temperature control algorithm, according to the difference between the real-time temperature and the pre-set hot stripping temperature, the output power is automatically adjusted in real time, the application has the advantages of fast heating speed, high temperature control precision, stable and reliable temperature during stripping, and the like.

Description

Technical Field

[0001] This application relates to the field of wire stripping equipment, specifically to a temperature-controlled thermal stripping pliers and its temperature control method. Background Technology

[0002] In the military electronics assembly industry, wire end processing mainly relies on manual operation with heat stripping tools, especially for chassis products, which require frequent handling of the heat stripping pliers handle. Currently, the temperature control principle of existing heat stripping pliers is to adjust the fixed output power of each setting to correspond to the handle temperature for unidirectional temperature control. This solution has the problems of slow temperature recovery each time it is handled, large temperature fluctuations due to load, poor temperature control accuracy, and greatly affects work efficiency and quality.

[0003] For example, application number CN202310385493.4 discloses a wire insulation heat stripping device, which includes a temperature control box comprising a housing, a power input port, a transformer, a voltage regulator, a delay module, a limit switch, a temperature control knob, a device base plate, a power switch, an output socket, and a handle bracket; the handle comprises a clamp handle L, a clamp handle R, a heat insulation plate L, a heat insulation plate R, a heat equalizing plate, a ceramic bracket, a heating wire, an enameled wire, an adapter plate, a positioner, high-temperature adhesive, a sheath, a connecting wire, and a handle plug; the output socket of the temperature control box is connected to the handle plug to supply power to heat the clamp handle teeth, and the heated teeth melt the wire insulation to achieve the heat stripping treatment of the wire insulation; this device performs unidirectional temperature control by adjusting the fixed output power of each gear to correspond to the handle temperature, which has the aforementioned technical problems.

[0004] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a temperature-controlled hot stripping pliers, including a temperature control device, a handle device connected to the temperature control device, and a control device disposed within the temperature control device. The handle device includes a plier handle with a groove for holding a thermocouple wire and an enameled wire. One end of the thermocouple wire and one end of the enameled wire extend into the same groove to a connecting piece. The other end of the thermocouple wire is welded to the plier handle to form a thermocouple, and the other end of the enameled wire is welded to a heating element assembly. The heating element assembly is installed in a heating element mounting hole on the pliers. The heating element assembly is connected to the control device, and the connecting piece is connected to the control device via a wire.

[0006] As a preferred embodiment, the temperature control device includes a housing, a handle bracket on the upper part of the housing, a pressure device on the handle bracket, the pressure device being connected to a control device, the control device being connected to a sleep module, the control device and the sleep module being disposed inside the housing, and the control device also being connected to a power module, a display, and buttons, the display and buttons being disposed on the outside of the housing.

[0007] As a preferred embodiment, the control device is further provided with an SD card slot, and the control device and the SD card slot are electrically connected via signal lines.

[0008] As a preferred embodiment, a ceramic tube is provided on the outside of the thermocouple wire and the enameled wire.

[0009] As a preferred embodiment, the groove is filled with high-temperature adhesive.

[0010] As a preferred embodiment, the outer side of the high-temperature adhesive is welded with a skin.

[0011] As a preferred embodiment, a heat insulation plate is installed on the outside of the clamp handle.

[0012] As a preferred embodiment, the heat insulation plate has an installation groove, and a heat equalization plate is installed in the installation groove.

[0013] As a preferred embodiment, the two thermocouple wires are connected to the connecting piece at ADC1 and ADC2, the two enameled wires are connected to the connecting piece at PWM1 and PWM2, and the clamp handle is integrated with or connected to the GND contact.

[0014] A method for controlling the temperature of temperature-controlled hot stripping pliers includes the following steps: S1: Preset the required hot stripping temperature; S2: The thermocouple continuously collects the real-time temperature of the dental orifice and transmits the collected temperature to the control device; S3: Based on the PID closed-loop temperature control algorithm, it automatically adjusts the output power in real time according to the difference between the real-time temperature and the preset hot stripping temperature to achieve real-time temperature control.

[0015] As a preferred option, it also includes: S4: If the controller is detected to be placed on the controller stand, check whether sleep mode is enabled. If yes, proceed to S5; otherwise, proceed to S7. S5: Confirm whether to set a sleep delay; otherwise, directly switch the temperature to the preset sleep temperature; if yes, proceed to S6. S6: Determine whether the unused time of the handle device has reached the set sleep delay. If yes, switch the temperature to the preset sleep temperature; otherwise, continue to execute S6. S7: Maintains the current controller temperature setting continuously; no automatic sleep mode.

[0016] As a preferred solution, when the controller is picked up or a button is pressed while in sleep mode, the system immediately exits sleep mode and restores the temperature to the set temperature before sleep mode.

[0017] As a preferred option, the temperature range of the dental cavity is 80℃ to 680℃.

[0018] This application uses a thermocouple to continuously collect the temperature of the wire teeth. Based on a PID closed-loop temperature control algorithm, it automatically adjusts the output power in real time according to the difference between the real-time temperature and the preset hot stripping temperature. This application uses signal feedback to heat the wire teeth at the top of the clamp handle. The heated teeth melt the wire insulation to achieve hot stripping of the wire insulation. This application features fast heating speed, high temperature control accuracy, and stable and reliable temperature during wire stripping. It is suitable for wire end processing in the manufacturing process of high-reliability equipment such as aerospace, weaponry, and ships. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the handle device at angle one of this application; Figure 2 This is a schematic diagram of the handle device at angle two of this application; Figure 3 This is a schematic diagram of the handle device at angle three of this application; Figure 4 yes Figure 3 A magnified view of part A in the middle; Figure 5 yes Figure 3 A magnified view of part B in the middle section; Figure 6 This is a schematic diagram of the handle device at angle four of this application; Figure 7 yes Figure 6 A magnified view of part C in the middle; Figure 8 This is a partial sectional view of the handle / handle assembly; Figure 9 This is a schematic diagram of the temperature control principle in this application; Figure 10 This is a structural schematic diagram of the entire application from one perspective; Figure 11 This is a structural schematic diagram from the second perspective of the overall application; Figure 12 This is the schematic diagram of the MOSFET control module; Figure 13 This is the schematic diagram of the control device; Figure 14 This is the schematic diagram of the power supply module; Figure 15 This is the schematic diagram of the monitor; Figure 16 This is a schematic diagram of the button. Figure 17 This is the schematic diagram of the hibernation module; Figure 18 This is the schematic diagram of the solder pads; Figure 19 This is a schematic diagram of an SD card slot; Figure 20 This is a schematic diagram of the pad interface; Figure 21 This is the schematic diagram of an isolated power supply module; Figure 22 This is a schematic diagram of a digital isolator; Figure 23 This is the schematic diagram of an RS485 interface; Figure 24 This is the schematic diagram of the buzzer module; Figure 25 This is the schematic diagram of the temperature compensation module; Figure label: 1. Clamp handle; 2. Heat insulation plate; 3. Mounting slot; 4. Heat distribution plate; 5. Wire groove; 6. Thermocouple wire; 7. Enameled wire; 8. Ceramic tube; 9. Connecting piece; 10. Thermocouple; 11. Heating core assembly; 12. Gear; 13. Heating core mounting hole; 14. Heating wire; 15. Skin; 16. Wire; 17. Housing; 18. Handle bracket; 19. Display; 20. Button; 21. RS485 interface; 22. SD card slot; 23. Handle connector. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the invention. Example 1

[0021] This invention provides a temperature-controlled hot stripping pliers, including a temperature control device and a handle device. The handle device is connected to the temperature control device via a wire 16 and a handle connector 23. The temperature control device contains a control device. The handle device includes a handle 1, with a heat insulation plate 2 mounted on the outer side of the handle 1. To facilitate gripping and increase friction, the heat insulation plate 2 has an installation groove 3, within which a heat-dissipating plate 4 is installed. The heat-dissipating plate 4 is made of aluminum, copper, or similar materials. The heat-dissipating plate 4 evenly distributes the heat conducted and radiated from the teeth 12 to the heat insulation plate 2, increasing the heat dissipation area and preventing temperature concentration in the finger area, which would affect the long-term stripping experience. Specifically, the handle 1 includes two handles 1, each with a wire groove 5. A thermocouple wire 6 and an enameled wire 7 are installed within the wire groove 5. A ceramic tube 8 is installed on clamp 7. One end of the thermocouple wire 6 and one end of the enameled wire 7 pass through the ceramic tube 8 and extend to the terminal block 9 in the same wire groove. The terminal block 9 is connected to the control device through the wire 16. The connection points between the two thermocouple wires 6 and the terminal block 9 are ADC1 and ADC2, respectively. The connection points between the two enameled wires 7 and the terminal block 9 are PWM1 and PWM2, respectively. The other end of the thermocouple wire 6 is welded to the clamp handle 1 to form a thermocouple 10, which is a non-standard thermocouple used to provide feedback on the temperature of the heating core assembly 11 to meet the closed-loop PID temperature control conditions. The clamp handle 1 integrates or connects to the GND contact. The other end of the enameled wire 7 is welded to the heating core assembly 11. The heating core assembly 11 is installed in the heating core mounting hole 13 opened on the teeth 12 at the top of the clamp handle 1 for heating the teeth 12. Figure 7 Only the enameled wire 7 is shown in the diagram; the thermocouple wire 6 is not shown. The heating element assembly 11 includes a heating wire 14 and a ceramic support. The thermocouple 10 is located on the side where the heating element assembly 11 is installed, and the heating element assembly is also connected to the control device. The control device uses a microcontroller, preferably an STM32F103RCT6. Pins 22 and 23 of the microcontroller are connected to pins TIM3-CH1 and TIM3-CH2 of the MOSFET control module. The MOSFET control module is isolated before being driven. The microcontroller controls the conduction and cutoff of the MOSFET to regulate the heating of the heating wire 14 by turning it on and off.

[0022] Preferably, after the thermocouple wire 6 and the enameled wire 7 are installed in the wire groove 5, it is filled with high-temperature adhesive; a skin 15 is welded to the outside of the high-temperature adhesive; that is, after the high-temperature adhesive is filled into the wire groove 5, the skin 15 is welded to cover the wire groove 5 to further protect the thermocouple wire 6 and the enameled wire 7.

[0023] In this application, the thermocouple wire 6 is first welded to the vicinity of the heating core mounting hole 13 of the clamp handle 1, then the thermocouple wire 6 is passed through the ceramic tube 8, and then the heating core assembly 11 after welding the enameled wire 7 is installed in the heating core mounting hole 13. The enameled wire 7 and the thermocouple wire 6 extend to the connecting piece 9 along the wire groove. After the wire groove 5 is filled with high temperature glue, the sheath 15 is welded to cover the wire groove 5.

[0024] In practical use, the clamp handle 1 is connected to the temperature control device via wire 16. After calibrating the non-standard thermocouple, the control device acquires the thermoelectric potential of the ADC1 and ADC2 contacts relative to the GND contact in real time and calculates the jaw (jaw) temperature based on the calibration coefficient. The control device compares the set temperature with the jaw 12 temperature of the clamp handle 1 in real time and adjusts the duty cycle of the PWM1 and PWM2 contacts respectively through the PID algorithm to achieve closed-loop temperature control of the heating wire 14. The above-mentioned software algorithms are all conventional existing technologies. This application aims to protect the structure. Example 2

[0025] This embodiment describes a temperature control device, which includes a housing 17. A handle bracket 18 is mounted on the upper part of the housing 17. The handle bracket 18 is used to hold the pliers handle 1. A pressure device is mounted on the handle bracket 18. The pressure device employs a pressure sensor or similar device found in the prior art. The pressure device is connected to a control device, which is connected to a sleep mode module. When the pliers handle 1 is placed on the handle bracket 18, the pressure device transmits a signal to the control device, which then activates the sleep mode module. When the sleep mode is set... When the clamp 1 is placed on the handle bracket 18, if it is not used and the set sleep delay is reached, the set temperature will automatically switch to the preset sleep temperature. The sleep delay time range is 1 second to 10 minutes, and the sleep temperature range is 80℃ to 300℃. Alternatively, the sleep delay can be omitted, and the temperature can be directly switched to the preset sleep temperature. In sleep mode, if the clamp 1 is picked up or a button is pressed, the system will immediately exit sleep mode and restore the set temperature before sleep mode. The PID controller will quickly respond to raise or lower the temperature. If no sleep mode is set, i.e., it is set to non-sleep mode, the current set temperature will be maintained without automatic sleep mode. More specifically, the microcontroller's pin 53 is connected to the sleep module's SLEEP-PIN pin.

[0026] The control device is located inside the housing 18 and is connected to the power module, display 19, and buttons 20. The display 19 can display in real-time the constant temperature, heating, and cooling status; the lock status; button tone status; real-time temperature; set temperature; quick temperature display; power bar; and backlight brightness at a set range of 0-100. Button tones are emitted through a buzzer module, whose BUZZER pin is connected to pin 28 of the microcontroller. The buzzer module can also emit sound to indicate when the temperature reaches the preset temperature or after a system update. The display 19 and buttons 20 are located on the outside of the housing 18. The microcontroller is connected to the power module, which supplies power to the microcontroller. Pins 18, 19, and 20 of the display 19 are connected to the SPI2-MOSI pin of the microcontroller, and pin 17 of the display 19 is connected to the SP1 pin of the microcontroller. The I2-SCK pin is connected; pin 13 of display 19 is connected to the LCD-DC pin of the microcontroller; pin 12 of display 19 is connected to the LCD-CS pin of the microcontroller; pin 25 of display 19 is connected to the MOSFET (Q3); the circuit output of the MOSFET is connected to the LCD-BL pin of the microcontroller; pins PC0-SW0, PC1-SW1, PC2-SW2, and PC3-SW3 of the microcontroller are connected to four buttons 20 respectively. Buttons 20 are respectively the option / parameter up, option / parameter down, setting / exit, and quick setting button; the option / parameter up and option / parameter down buttons are used to adjust the set temperature in the unlocked state; the quick setting button is used to enter or exit when in the setting panel, and to switch the temperature quickly when in the main page, allowing one-click switching between three preset temperatures; the setting / exit setting button: enters the setting page.

[0027] The settings page is the entry point for configuring the core parameters of the device. It supports full parameter customization and adjustment. In terms of operation, parameter values ​​can be modified by using the option / parameter up and option / parameter down buttons, and the settings / exit settings button can enter / exit single-option editing and return to the main page. The quick settings button can cycle through configuration options. All parameter modifications are saved and take effect immediately without additional confirmation steps. The page synchronously displays the currently edited options, parameter values, and selectable ranges, and the operation logic is simple and intuitive.

[0028] The control device is also equipped with an SD card slot. The control device and the SD card slot are electrically connected via signal lines. The SD card slot is used for offline system updates, which is very convenient. Specifically, the microcontroller is connected to the corresponding pads on the IO board through the SDIO-CMD, SDIO-CK, and SDIO-CD pins to achieve electrical connection with the power, ground, and signal network of the IO board. The SD card slot 22 is fixed to the IO board by pads, and its pins are connected to the microcontroller's peripheral interface via wiring, providing a physical channel for pluggable components to communicate or be powered by the microcontroller, ultimately realizing the microcontroller's read and write control of the SD card. In use, when the SD card is inserted into the SD card slot 22 while the device is powered off and contains matching system firmware, the upgrade program is automatically triggered after power-on. The display shows the upgrade status. During the upgrade process, the power supply and SD card status are continuously monitored. After the upgrade is completed, the buzzer module emits a "beep" prompt sound, automatically restarts the device, and loads the new firmware.

[0029] Preferably, for convenient communication, the temperature control device also includes an RS485 interface 21; specifically, pins 2 and 3 of the pad interface are connected to the corresponding UART3-TX and UART3-RX pins of the microcontroller through the IO board traces. The pad interface is electrically connected to the isolation power supply module and the digital isolator respectively to realize power supply and signal isolation transmission. Pins 6 and 7 of the digital isolator are connected to the TX3 and RX3 pins of the chip U29 to realize serial port to 485.

[0030] Thermocouple 10 collects temperature signals, which are then converted into differential signals by RS485 chip U29 and transmitted to the host or gateway via signal lines A and B. The host or gateway converts the received RS485 data into Ethernet, Wi-Fi, or 4G signals and uploads them to a cloud platform or computer monitoring software. Users can log in to the platform via mobile phone or computer to view real-time data, monitor status alarms, and remotely control the equipment. Example 3

[0031] This embodiment provides a temperature control method for temperature-controlled hot stripping pliers. Upon power-up, the system loads default / last saved parameters, including device address, baud rate, three quick preset temperatures, sleep temperature / delay, temperature adjustment step size, and lock status. The default MODBUS-RTU configuration is 9600, 8-bit, Even, 1-bit. Hardware modules are initialized, including ADC, RS485 communication, SD card detection, button input, and display driver modules. After completion, the main page is entered. The connection status of the hot stripping handle is detected; if there is no connection, a status prompt is given; if there is a connection, temperature acquisition is initiated, initially with low power output, gradually approaching the default set temperature. Specifically, the method includes the following steps: S1: Preset the required hot stripping temperature; the specific operation of setting the hot stripping temperature is to adjust the set temperature by pressing the increase / decrease buttons in the unlocked state. The temperature adjustment steps include 1℃, 2℃, 5℃, 10℃, 20℃ and 50℃. The main page can switch between 3 custom quick preset temperatures with one click. After switching, the PID will immediately respond to the new target temperature. S2: The thermocouple continuously collects the real-time temperature of tooth 12 and transmits the collected temperature to the control device; S3: Based on the PID closed-loop temperature control algorithm, the output power is automatically adjusted in real time according to the difference between the real-time temperature and the preset hot stripping temperature to complete the real-time temperature control; the power bar on the display 19 synchronously displays the current power, and the temperature control range is 80℃—680℃; It supports ±30℃ temperature compensation. Specifically, pin 24 of the microcontroller is connected to the DS18B20-DQ pin of the temperature compensation module. After the calibration value takes effect, both the real-time temperature and the set temperature are corrected according to the compensation value to ensure the accuracy of temperature control. It also supports switching of temperature units and switching between ℃ and F units. After switching, all temperature displays and parameter settings will be converted to the unit synchronously without changing the actual temperature control value.

[0032] Preferably, this embodiment also includes the following step: whether to set a sleep mode can be selected as needed. Enabling the sleep mode can prevent the handle device from maintaining a high temperature when not in use, which could lead to burns or other situations. S4: If it is detected that the clamp handle 1 is placed on the handle bracket 18, check whether the sleep mode is enabled. If yes, execute S5; otherwise, execute S7. S5: Confirm whether to set a sleep delay; otherwise, directly switch the temperature to the preset sleep temperature; if yes, execute S6; the sleep delay time range is 1 second to 10 minutes; the sleep temperature range is 80℃ to 300℃. S6: Determine whether the unused time of clamp 1 has reached the set sleep delay. If yes, switch the temperature to the preset sleep temperature; otherwise, continue to execute S6. S7: Maintains the current set temperature of clamp handle 1 without automatic sleep mode.

[0033] As a preferred solution, in order to achieve rapid temperature recovery, when the handle device is picked up or a button is pressed while in sleep mode, the device immediately exits sleep mode and returns to the set temperature before sleep mode.

[0034] In summary, by adopting the above technical solution, this application achieves heating of the jaws at the top of the clamp handle through signal feedback. The heated jaws melt the wire insulation to achieve thermal stripping of the wire insulation. Through the cooperation of thermocouples, heating core components, and control devices, the jaws can be heated rapidly, thereby improving work efficiency. This application has a fast heating speed, high temperature control accuracy, and stable and reliable temperature during wire stripping, making it suitable for wire end processing in the manufacturing process of high-reliability equipment such as aerospace, weaponry, and ships.

[0035] The structures and connections not described in detail in this invention are all prior art, and will not be described in detail here. The connections between the above-mentioned components are preferably fixed in a manner well-known in the prior art, such as screw connection or snap-fit ​​connection.

[0036] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0038] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A temperature-controlled hot stripping pliers, comprising a temperature control device, a handle device connected to the temperature control device, and a control device disposed within the temperature control device, characterized in that, The handle device includes a clamp handle (1), on which a wire groove (5) is provided. A thermocouple wire (6) and an enameled wire (7) are provided in the wire groove (5). One end of the thermocouple wire (6) and one end of the enameled wire (7) are placed in the same wire groove and extend to the connecting piece (9). The other end of the thermocouple wire (6) is welded to the clamp handle (1) to form a thermocouple (10). The other end of the enameled wire (7) is welded to the heating core assembly (11). The heating core assembly (11) is installed in the heating core mounting hole (13) opened on the jaw (12). The heating core assembly (11) is connected to the control device. The connecting piece (9) is connected to the control device through a wire (16).

2. The temperature-controlled hot stripping pliers according to claim 1, characterized in that, The temperature control device includes a housing (17), a handle bracket (18) is provided on the upper part of the housing (17), a pressure device is provided on the handle bracket (18), the pressure device is connected to the control device, the control device is connected to the sleep module, the control device and the sleep module are located inside the housing (17), the control device is also connected to the power module, the display (19) and the button (20), the display (19) and the button (20) are located on the outside of the housing (17).

3. The temperature-controlled hot stripping pliers according to claim 1, characterized in that, The control device is also extended to include an SD card slot, and the control device and the SD card slot are electrically connected via signal lines.

4. The handle device for temperature-controlled hot stripping pliers according to claim 1, characterized in that, A ceramic tube (8) is provided on the outside of the thermocouple wire (6) and the enameled wire (7).

5. The temperature-controlled hot stripping pliers according to claim 1, characterized in that, The groove (5) is filled with high-temperature adhesive.

6. The temperature-controlled hot stripping pliers according to claim 1, characterized in that, A heat insulation plate (2) is installed on the outside of the pliers (1).

7. The temperature-controlled hot stripping pliers according to claim 1, characterized in that, The two thermocouple wires (6) are connected to the terminal block (9) at the ADC1 and ADC2 points, respectively. The two enameled wires (7) are connected to the terminal block (9) at the PWM1 and PWM2 points, respectively. The clamp handle (1) is integrated with or connected to the GND point.

8. A temperature control method for a temperature-controlled hot stripping pliers according to any one of claims 1-7, comprising the following steps: S1: Preset the required hot stripping temperature; S2: Thermocouple (10) continuously collects the real-time temperature of the tooth (12) and transmits the collected temperature to the control device; S3: Based on the PID closed-loop temperature control algorithm, it automatically adjusts the output power in real time according to the difference between the real-time temperature and the preset hot stripping temperature to achieve real-time temperature control.

9. The temperature control method for a temperature-controlled hot stripping pliers according to claim 8, characterized in that, Also includes: S4: If the controller is detected to be placed on the controller holder (18), check whether the sleep mode is enabled. If yes, execute S5; otherwise, execute S7. S5: Confirm whether to set a sleep delay; otherwise, directly switch the temperature to the preset sleep temperature; if yes, proceed to S6. S6: Determine whether the unused time of the handle device has reached the set sleep delay. If yes, switch the temperature to the preset sleep temperature; otherwise, continue to execute S6. S7: Maintains the current controller temperature setting continuously; no automatic sleep mode.

10. The temperature control method for a temperature-controlled hot stripping pliers according to claim 8, characterized in that, When in sleep mode, if the handle is picked up or a button is pressed, the device immediately exits sleep mode and returns to the set temperature before sleep mode.

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