A method for temperature control of a hot melt glue gun

Abstract

A temperature control method for a hot melt glue gun includes the following steps: (1) The system is powered on, and the control module controls the electric heating module to start preheating; (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt glue based on the signal detected by the temperature detection module; (3) The control module determines whether the user has triggered the glue dispensing action based on the signal detected by the trigger module; (4) The control module determines whether the user has picked up the glue based on the signal detected by the handheld detection module. If so, the control module controls the electric heating module to heat up and returns to step (3); (5) The control module determines whether the timer has reached the first set time. If so, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt glue to enter a dormant state. This temperature control method for the hot melt glue gun is not only energy-saving and power-saving, but also shortens the user's waiting time.

Description

Technical Field

[0001] This invention relates to the field of hot melt glue gun technology, and more specifically to a temperature control method for hot melt glue guns. Background Technology

[0002] A hot melt glue gun works by pushing a glue stick into the gun body, where an electric heating module heats the glue stick. Once liquefied, the glue stick is ejected from the dispensing nozzle. Continuous pushing of the glue stick causes it to be gradually heated and liquefied, resulting in a continuous flow of glue. Hot melt glue guns are generally divided into two types: electric and manual. Electric hot melt glue guns use electronic buttons to drive a motor, which automatically controls the glue stick dispensing. Manual hot melt glue guns, on the other hand, require pulling a trigger to manually dispense the glue.

[0003] Chinese invention patent application CN 107096695 A discloses a temperature control method for a hot melt glue gun. The hot melt glue gun is a manual type, with a trigger linked to a trigger switch. When the trigger drives the glue stick to dispense glue, it also activates the trigger switch. The temperature control method operates the electric heating module in a high-temperature heating mode during the preheating phase and in a low-temperature heating mode during the standby phase. The operating status of the electric heating module during standby is controlled by the trigger switch. If the trigger switch remains inactive for a set time after standby, the standby ends and the gun automatically shuts off. If the trigger switch is activated within the set time after standby, the control module switches the electric heating module to the high-temperature heating mode, causing the glue stick in the melting chamber to melt rapidly and dispense glue. This temperature control method uses a high-temperature heating mode during the preheating phase, improving the heating response speed of the glue gun during operation, and a low-temperature heating mode during the standby phase, resulting in greater energy savings.

[0004] However, the existing temperature control methods for hot melt glue guns still have the following technical problems: Since the electric heating module works in a low-temperature heating mode during standby, the temperature of the glue stick is relatively low. When the trigger switch is activated, it is necessary to wait for the glue stick to heat up to the set temperature before the glue can be dispensed. This undoubtedly increases the user's waiting time, the response speed is not fast enough, and the user experience is poor. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a temperature control method for a hot melt glue gun that not only saves energy and electricity but also shortens the user's waiting time.

[0006] The technical solution of this invention is: a temperature control method for a hot melt glue gun, the hot melt glue gun including a control module, and an electric heating module, a temperature detection module, a handheld detection module, and a trigger module electrically connected to the control module. The temperature detection module is used to detect the temperature of the electric heating module, the handheld detection module is used to detect the user's holding action, and the trigger module is used to detect the user's glue dispensing action. It includes the following steps:

[0007] (1) The system is powered on, and the control module controls the electric heating module to start preheating and proceeds to step (2);

[0008] (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive based on the signal detected by the temperature detection module. If yes, proceed to step (3); otherwise, continue preheating and repeat this step.

[0009] (3) The control module determines whether the user has triggered the dispensing action based on the signal detected by the trigger module. If not, the timing starts and the process proceeds to step (4). If yes, the dispensing is performed. The control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive.

[0010] (4) The control module determines whether the user has picked up the device based on the signal detected by the handheld detection module. If not, proceed to step (5). If yes, the control module controls the electric heating module to heat up and returns to step (3).

[0011] (5) The control module determines whether the timing has reached the first set time. If not, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (4). If yes, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive to enter a dormant state and returns to step (4). The softening temperature of the hot melt adhesive is lower than the liquefaction temperature of the hot melt adhesive.

[0012] By using the above method, the present invention has the following advantages:

[0013] The temperature control method of this invention for a hot melt glue gun utilizes a handheld detection module and a trigger module to detect the user's usage status. The electric heating module operates in different energy consumption modes depending on the usage status. When the user picks up the hot melt glue gun, triggering the holding action, the electric heating module begins heating to liquefy the hot melt glue. When the user presses the electronic button or wrench to trigger the dispensing action, the electric heating module continuously maintains heating to the hot melt glue liquefaction temperature range. In standby mode, the electric heating module only outputs the low-temperature softening temperature of the hot melt glue, thus reducing system energy consumption and achieving energy saving. Furthermore, the automatic preheating of the electric heating module after power-on allows the machine to be used shortly after power-on, shortening user waiting time. In addition, by adding a handheld detection module, the time difference between the user's holding action and the dispensing action can be used for preheating, further shortening user waiting time. Therefore, this temperature control method not only saves energy but also reduces user waiting time.

[0014] Preferably, in step (1), during preheating, the control module controls the electric heating module to rise from room temperature to the liquefaction temperature range of the hot melt adhesive within 30-60 seconds. This setting ensures both system reliability and stability at startup, while also guaranteeing rapid heating.

[0015] Preferably, in step (3), after the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive, step (6) is further entered: the control module determines whether it has received a dispensing stop signal based on the signal detected by the trigger module. If yes, dispensing ends, timing begins, and step (4) is entered; otherwise, step (6) is repeated. This setting allows the next dispensing action to proceed smoothly after the current dispensing action is completed.

[0016] Preferably, in step (5), after the control module determines that the timer has reached the first set time and before entering the sleep state, the control module further determines whether the timer has reached the second set time. If the second set time is greater than the first set time, the control module automatically shuts down the system; otherwise, the control module controls the temperature of the electric heating module to maintain it within the softening temperature range of the hot melt adhesive to enter the sleep state. This setting allows the system to shut down directly if no lifting or dispensing action is detected for a longer period than the first set time, further reducing energy consumption.

[0017] Preferably, the first set time is 10-60 seconds, and the second set time is 5-15 minutes. This setting can further optimize the system and conform to the actual usage habits of users.

[0018] Preferably, in step (2), after the control module determines that the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive and before proceeding to step (3), the control module also controls the duty cycle of the electric heating module's on-time via PWM to maintain the temperature of the electric heating module. This setting can maintain the temperature of the electric heating module while reducing energy consumption.

[0019] Preferably, in step (5), after the control module determines that the timing has reached the first set time, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive, and reduces the duty cycle of the electric heating module's power-on time. This setting can further reduce the power consumption during the sleep phase.

[0020] Preferably, in step (4), after the control module determines that the user has made a picking motion and before returning to step (3), the control module further determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt adhesive. If so, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive; if not, the control module controls the electric heating module to heat at full power. This setting can quickly raise the temperature of the electric heating module by heating at full power when the temperature has not reached the liquefaction temperature range of the hot melt adhesive after the picking motion is detected, thereby further shortening the user's waiting time.

[0021] Preferably, the hot melt glue gun is an electric hot melt glue gun, which also includes a motor electrically connected to the control module. The motor is used to drive the glue stick to dispense glue. In step (3), after the control module determines that the user has triggered the glue dispensing action, the control module also determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt glue. If so, the control module controls the motor to dispense glue at a first set speed and controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt glue, and then proceeds to step (6). If not, the control module controls the motor to dispense glue at a second set speed and controls the electric heating module to heat at full power, and then returns to this step to re-determine whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt glue. The first set speed is greater than the second set speed. This setting, when the temperature of the electric heating module has not yet risen to the liquefaction temperature range of the hot melt glue, appropriately slows down the feeding speed of the glue stick, thus ensuring the performance of the product and shortening the user's waiting time.

[0022] Preferably, the second set speed is one-third of the first set speed. This setting can further optimize the system and ensure its high reliability. Attached image description:

[0023] Figure 1 This is a flowchart of the temperature control method for the hot melt glue gun in Example 1;

[0024] Figure 2 This is a flowchart of the temperature control method for the hot melt glue gun in Example 2;

[0025] Figure 3 This is a flowchart of the temperature control method for the hot melt glue gun in Example 3;

[0026] Figure 4 This is a flowchart of the temperature control method for the hot melt glue gun in Example 4; Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1:

[0029] This embodiment provides a temperature control method for a hot melt glue gun. The hot melt glue gun includes a control module, and an electric heating module, a temperature detection module, a handheld detection module, and a trigger module electrically connected to the control module. The temperature detection module is used to detect the temperature of the electric heating module, the handheld detection module is used to detect the user's holding action, and the trigger module is used to detect the user's glue dispensing action. When the hot melt glue gun is an electric type, the trigger module can be an electronic button; when the hot melt glue gun is a manual type, the trigger module can be a trigger switch that is linked to a trigger. It includes the following steps:

[0030] (1) The system is powered on, and the control module controls the electric heating module to start preheating and proceeds to step (2);

[0031] (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive based on the signal detected by the temperature detection module. If yes, proceed to step (3); otherwise, continue preheating and repeat this step.

[0032] (3) The control module determines whether the user has triggered the dispensing action based on the signal detected by the trigger module. If not, the timing starts and the process proceeds to step (4). If yes, the dispensing is performed. The control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive.

[0033] (4) The control module determines whether the user has picked up the device based on the signal detected by the handheld detection module. If not, proceed to step (5). If yes, the control module controls the electric heating module to heat up and returns to step (3).

[0034] (5) The control module determines whether the timing has reached the first set time. If not, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (4). If yes, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive to enter a dormant state and returns to step (4). The softening temperature of the hot melt adhesive is lower than the liquefaction temperature of the hot melt adhesive.

[0035] Preferably, in step (1), during preheating, the control module controls the electric heating module to rise from room temperature to the liquefaction temperature range of the hot melt adhesive within 30-60 seconds. This setting ensures both system reliability and stability at startup, while also guaranteeing rapid heating.

[0036] In this embodiment, the liquefaction temperature range of the hot melt adhesive is 140±3℃, and the softening temperature range of the hot melt adhesive is 40-80℃. The handheld detection module adopts a capacitive touch button, which is installed on the back of the handle held by the hand. It can also use pressure, magnetic field, distance sensing and other methods to detect whether it is held. Similar solutions can be replaced by resistive pressure buttons, inductive pressure buttons, infrared distance sensors, gyroscopes, etc.

[0037] Example 2:

[0038] This embodiment provides a temperature control method for a hot melt glue gun. The hot melt glue gun includes a control module, and an electric heating module, a temperature detection module, a handheld detection module, and a trigger module electrically connected to the control module. The temperature detection module is used to detect the temperature of the electric heating module, the handheld detection module is used to detect the user's holding action, and the trigger module is used to detect the user's glue dispensing action. When the hot melt glue gun is an electric type, the trigger module can be an electronic button; when the hot melt glue gun is a manual type, the trigger module can be a trigger switch that is linked to a trigger. It includes the following steps:

[0039] (1) The system is powered on, and the control module controls the electric heating module to start preheating and proceeds to step (2);

[0040] (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive based on the signal detected by the temperature detection module. If yes, proceed to step (3); otherwise, continue preheating and repeat this step.

[0041] (3) The control module determines whether the user has triggered the dispensing action based on the signal detected by the trigger module. If not, the timing starts and the process proceeds to step (4). If yes, the dispensing is performed. The control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive.

[0042] (4) The control module determines whether the user has picked up the device based on the signal detected by the handheld detection module. If not, proceed to step (5). If yes, the control module controls the electric heating module to heat up and returns to step (3).

[0043] (5) The control module determines whether the timing has reached the first set time. If not, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (4). If yes, the control module also determines whether the timing has reached the second set time. The second set time is greater than the first set time. If yes, the control module controls the system to automatically shut down. If not, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive to enter a dormant state and returns to step (4). The softening temperature of the hot melt adhesive is lower than the liquefaction temperature of the hot melt adhesive.

[0044] Preferably, in step (1), during preheating, the control module controls the electric heating module to rise from room temperature to the liquefaction temperature range of the hot melt adhesive within 30-60 seconds. This setting ensures both system reliability and stability at startup, while also guaranteeing rapid heating.

[0045] Preferably, the first set time is 10-60 seconds, and the second set time is 5-15 minutes. This setting can further optimize the system and conform to the actual usage habits of users.

[0046] In this embodiment, the liquefaction temperature range of the hot melt adhesive is 140±3℃, and the softening temperature range of the hot melt adhesive is 40-80℃; the first set time is 15s, and the second set time is 10min; the handheld detection module adopts a capacitive touch button, which is installed on the back of the handle held by the hand. It can also use pressure, magnetic field, distance sensing, etc. to detect whether it is held. Similar solutions can be replaced by resistive pressure buttons, inductive pressure buttons, infrared distance sensors, gyroscopes, etc.

[0047] Example 3:

[0048] This embodiment provides a temperature control method for a hot melt glue gun. The hot melt glue gun includes a control module, and an electric heating module, a temperature detection module, a handheld detection module, and a trigger module electrically connected to the control module. The temperature detection module is used to detect the temperature of the electric heating module, the handheld detection module is used to detect the user's holding action, and the trigger module is used to detect the user's glue dispensing action. When the hot melt glue gun is an electric type, the trigger module can be an electronic button; when the hot melt glue gun is a manual type, the trigger module can be a trigger switch that is linked to a trigger. It includes the following steps:

[0049] (1) The system is powered on, and the control module controls the electric heating module to start preheating and proceeds to step (2);

[0050] (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive based on the signal detected by the temperature detection module. If yes, the control module controls the duty cycle of the electric heating module through PWM to maintain the temperature of the electric heating module and proceeds to step (3). If no, the preheating continues and this step is repeated. The duty cycle of the electric heating module is controlled by PWM. The PWM signal output by the control module is used to make a part of the time in one cycle be the power-on time and another part of the time be the non-power-on time. The duty cycle of the electric heating module refers to the proportion of the power-on time in one cycle.

[0051] (3) The control module determines whether the user has triggered the dispensing action based on the signal detected by the trigger module. If not, the timing starts and the process proceeds to step (4). If yes, the dispensing is performed. The control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and proceeds to step (6).

[0052] (4) The control module determines whether the user has picked up the device based on the signal detected by the handheld detection module. If not, proceed to step (5). If yes, the control module also determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt adhesive. If yes, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (3). If not, the control module controls the electric heating module to heat at full power and returns to step (3).

[0053] (5) The control module determines whether the timing has reached the first set time. If not, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (4). If yes, the control module also determines whether the timing has reached the second set time. The second set time is greater than the first set time. If yes, the control module controls the system to automatically shut down. If not, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive and reduces the duty cycle of the electric heating module to enter a sleep state and returns to step (4). The softening temperature of the hot melt adhesive is lower than the liquefaction temperature of the hot melt adhesive.

[0054] (6) The control module determines whether it has received a glue dispensing stop signal based on the signal detected by the trigger module. If yes, the glue dispensing ends, the timing starts and the process proceeds to step (4). If no, the process is repeated.

[0055] Preferably, in step (1), during preheating, the control module controls the electric heating module to rise from room temperature to the liquefaction temperature range of the hot melt adhesive within 30-60 seconds. This setting ensures both system reliability and stability at startup, while also guaranteeing rapid heating.

[0056] Preferably, the first set time is 10-60 seconds, and the second set time is 5-15 minutes. This setting can further optimize the system and conform to the actual usage habits of users.

[0057] In this embodiment, the liquefaction temperature range of the hot melt adhesive is 140±3℃, and the softening temperature range of the hot melt adhesive is 40-80℃; the first set time is 15s, and the second set time is 10min; the handheld detection module adopts a capacitive touch button, which is installed on the back of the handle held by the hand. It can also use pressure, magnetic field, distance sensing, etc. to detect whether it is held. Similar solutions can be replaced by resistive pressure buttons, inductive pressure buttons, infrared distance sensors, gyroscopes, etc.

[0058] Example 4:

[0059] This embodiment provides a temperature control method for a hot melt glue gun. The hot melt glue gun is an electric hot melt glue gun, which includes a control module, an electric heating module, a temperature detection module, a handheld detection module, a trigger module, and a motor module electrically connected to the control module. The temperature detection module is used to detect the temperature of the electric heating module. The handheld detection module is used to detect the user's holding action. The trigger module is an electronic button used to detect the user's glue dispensing action. The motor module is used to drive the glue stick to dispense glue. It includes the following steps:

[0060] (1) The system is powered on, and the control module controls the electric heating module to start preheating and proceeds to step (2);

[0061] (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive based on the signal detected by the temperature detection module. If yes, the control module controls the duty cycle of the power-on time of the electric heating module through PWM to maintain the temperature of the electric heating module and proceeds to step (3). If no, the preheating continues and this step is repeated.

[0062] (3) The control module determines whether the user has triggered the dispensing action based on the signal detected by the trigger module. If not, the timing starts and the process proceeds to step (4). If yes, the control module determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt adhesive. If yes, the control module controls the motor to dispense adhesive at the first set speed and controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive. Then the process proceeds to step (6). If no, the control module controls the motor to dispense adhesive at the second set speed and controls the electric heating module to heat at full power. Then the process returns to this step to re-determine whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt adhesive. The first set speed is greater than the second set speed.

[0063] (4) The control module determines whether the user has picked up the device based on the signal detected by the handheld detection module. If not, proceed to step (5). If yes, the control module also determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt adhesive. If yes, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (3). If not, the control module controls the electric heating module to heat at full power and returns to step (3).

[0064] (5) The control module determines whether the timing has reached the first set time. If not, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (4). If yes, the control module also determines whether the timing has reached the second set time. The second set time is greater than the first set time. If yes, the control module controls the system to automatically shut down. If not, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive and reduces the duty cycle of the electric heating module to enter a sleep state and returns to step (4). The softening temperature of the hot melt adhesive is lower than the liquefaction temperature of the hot melt adhesive.

[0065] (6) The control module determines whether it has received a glue dispensing stop signal based on the signal detected by the trigger module. If yes, the glue dispensing ends, the timing starts and the process proceeds to step (4). If no, the process is repeated.

[0066] Preferably, in step (1), during preheating, the control module controls the electric heating module to rise from room temperature to the liquefaction temperature range of the hot melt adhesive within 30-60 seconds. This setting ensures both system reliability and stability at startup, while also guaranteeing rapid heating.

[0067] Preferably, the first set time is 10-60 seconds, and the second set time is 5-15 minutes. This setting can further optimize the system and conform to the actual usage habits of users.

[0068] Preferably, the second set speed is one-third of the first set speed. This setting can further optimize the system and ensure its high reliability.

[0069] In this embodiment, the liquefaction temperature range of the hot melt adhesive is 140±3℃, and the softening temperature range of the hot melt adhesive is 40-80℃; the first set time is 15s, and the second set time is 10min; the handheld detection module adopts a capacitive touch button, which is installed on the back of the handle held by the hand. It can also use pressure, magnetic field, distance sensing, etc. to detect whether it is held. Similar solutions can be replaced by resistive pressure buttons, inductive pressure buttons, infrared distance sensors, gyroscopes, etc.

Claims

1. A temperature control method for a hot melt glue gun, the hot melt glue gun comprising a control module, an electric heating module, a temperature detection module, a handheld detection module, and a trigger module electrically connected to the control module, wherein the temperature detection module is used to detect the temperature of the electric heating module, the handheld detection module is used to detect the user's holding action, and the trigger module is used to detect the user's glue dispensing action, characterized in that: It includes the following steps: (1) The system is powered on, and the control module controls the electric heating module to start preheating and proceeds to step (2). (2) The control module determines whether the temperature of the electric heating module has risen to the liquefaction temperature range of the hot melt adhesive based on the signal detected by the temperature detection module. If yes, the control module controls the duty cycle of the power-on time of the electric heating module through PWM to maintain the temperature of the electric heating module, and then proceeds to step (3). If no, the preheating continues and this step is repeated. (3) The control module determines whether the user has triggered the dispensing action based on the signal detected by the trigger module. If not, the timing starts and the process proceeds to step (4). If yes, the dispensing is performed. The control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and proceeds to step (6). (4) The control module determines whether the user has picked up the device based on the signal detected by the handheld detection module. If not, proceed to step (5). If yes, the control module controls the electric heating module to heat up and returns to step (3). (5) The control module determines whether the timing has reached the first set time. If not, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive and returns to step (4). If yes, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive to enter the sleep state and returns to step (4). The softening temperature of the hot melt adhesive is lower than the liquefaction temperature of the hot melt adhesive. (6) The control module determines whether it has received a glue dispensing stop signal based on the signal detected by the trigger module. If yes, the glue dispensing ends, the timing starts and the process proceeds to step (4). If no, step (6) is repeated.

2. The temperature control method for a hot melt glue gun according to claim 1, characterized in that: In step (1), during preheating, the control module controls the electric heating module to rise from room temperature to the liquefaction temperature range of the hot melt adhesive within 30-60 seconds.

3. The temperature control method for a hot melt glue gun according to claim 1, characterized in that: In step (5), after the control module determines that the timer has reached the first set time and before entering the sleep state, the control module also determines whether the timer has reached the second set time. If the second set time is greater than the first set time, the control module controls the system to automatically shut down. If not, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive so as to enter the sleep state.

4. The temperature control method for a hot melt glue gun according to claim 3, characterized in that: The first set time is 10-60 seconds, and the second set time is 5-15 minutes.

5. The temperature control method for a hot melt glue gun according to claim 1, characterized in that: In step (5), after the control module determines that the timing has reached the first set time, the control module controls the temperature of the electric heating module to be maintained within the softening temperature range of the hot melt adhesive, and reduces the duty cycle of the electric heating module's power-on time.

6. The temperature control method for a hot melt glue gun according to claim 1, characterized in that: In step (4), after the control module determines that the user has a holding action and before returning to step (3), the control module also determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt adhesive. If so, the control module controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt adhesive. If not, the control module controls the electric heating module to heat at full power.

7. The temperature control method for a hot melt glue gun according to claim 1, characterized in that: The hot melt glue gun is an electric hot melt glue gun. The electric hot melt glue gun also includes a motor electrically connected to the control module. The motor is used to drive the glue stick to dispense glue. In step (3), after the control module determines that the user has triggered the glue dispensing action, the control module also determines whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt glue. If so, the control module controls the motor to dispense glue at a first set speed and controls the temperature of the electric heating module to be maintained within the liquefaction temperature range of the hot melt glue, and then proceeds to step (6). If not, the control module controls the motor to dispense glue at a second set speed and controls the electric heating module to heat at full power, and then returns to this step to re-determine whether the temperature of the electric heating module is within the liquefaction temperature range of the hot melt glue. The first set speed is greater than the second set speed.

8. The temperature control method for a hot melt glue gun according to claim 7, characterized in that: The second set speed is 1 / 3 of the first set speed.

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