CN205887364U - A kind of safety hot melt glue gun - Google Patents

Abstract

The utility model relates to a hot melt adhesive rifle technical field discloses a safe hot melt adhesive rifle, is applicable to a melting adhesive tape in order to export a melt adhesive solution, and contains a rifle casing, a melt adhesive propulsion unit, and a control assembly. The gun shell comprises a glue filling port for filling the adhesive tape and a glue outlet port for outputting the molten glue. The glue-melting propulsion unit comprises a trigger, a glue-pushing mechanism controlled by the trigger and a heater. This timing device is added to hot melt adhesive rifle, recycles the meter and advances the module and carry out the electricity with warning device and be connected and control to reach the purpose that reduces the structure redundancy, it is more convenient to control, and the integrated level is high, can effectively reduce production manufacturing cost.

Description

A kind of safety hot melt glue gun

technical field

The utility model belongs to the technical field of hot-melt glue guns, in particular to a safe hot-melt glue gun.

Background technique

Prior Art U.S. Patent Publication No. US6105824 discloses an automatic power-off hot-melt glue gun, which adopts a controller to control a heating element in the hot-melt glue gun for safety considerations, so as to avoid The hot melt glue gun is not used for a long time after it is powered on, and it is a dangerous situation that continues to heat up. Wherein, the controller includes an AC-to-DC circuit, a reset switch linked to a trigger, a time constant circuit which is connected in series with the reset switch and used to generate a timing voltage, and a reference voltage used to generate a reference voltage. A voltage circuit, an operational amplifier electrically connected to the time constant circuit and the reference voltage circuit, and a switching unit electrically connected to the output terminal of the operational amplifier. The operational amplifier receives the timing voltage and the reference voltage, and outputs a control signal proportional to the voltage difference between the timing voltage and the reference voltage, and the switching unit receives the control signal and switches to the current-allowing position according to the control signal and switch between current-free positions. When the trigger is triggered, the reset switch is switched to be turned on so that the time constant circuit is charged and the output voltage value is greater than the timing voltage of the reference voltage. The control signal output by the operational amplifier controls the switching unit to switch to the allowable voltage. The flow position is such that the output signal of the AC-to-DC circuit flows through the heating component and is converted into heat energy. After the trigger is triggered, the reset switch is switched to a non-conductive state so that the time constant circuit is discharged and a timing voltage whose voltage value gradually decreases with time is output, at the voltage value of the timing voltage and the reference voltage When they are equal, the control signal output by the operational amplifier controls the switching unit to switch to the current-forbidden position, so as to prevent the output signal of the AC-to-DC circuit from flowing through the heating assembly.

However, because the hot melt glue gun has a complex structure for better control of the trigger, the overall production cost of the hot melt glue gun is greatly increased.

Utility model content

In order to achieve the above purpose, the purpose of the utility model of the present invention is to provide a safe hot melt glue gun, which has a simple structure and low manufacturing cost.

Therefore, the safety hot-melt glue gun of the present invention is suitable for melting a glue strip to output a melt glue liquid, and specifically includes a gun housing, a melt glue propulsion unit and a control assembly.

The gun housing includes a gripping portion for holding, a glue filling port provided at one end of the gun housing for filling the rubber strip, and a port for outputting the melt glue at the other end of the gun housing. Glue outlet.

The melt glue pushing unit includes a trigger, a glue pushing mechanism controlled by the trigger, and a heater for heating the rubber strip. When the trigger is in the trigger position, the glue pushing mechanism is controlled to push the glue strip toward the glue outlet, When the trigger is at the release position, the rubber pushing mechanism is controlled to stop pushing the rubber strip.

The control assembly is accommodated in the gun casing, and the control assembly includes a timing device and a warning device electrically connected and controlled by the timing device.

The timing device starts counting when the heater starts to heat and forms a first delay time, and when the first delay time ends, the timing pattern control warning device sends out a warning signal.

The timing device also starts counting when the trigger is at the release position to form a second delay time longer than the first delay time, and when the trigger continues to be at the release position within the second delay time, the timing device ends at the second delay time The rear control warning device sends another warning signal.

The beneficial effect of the utility model is that: the hot melt glue gun is added with a timing device, and then the metering module is used to electrically connect with the warning device for control, thereby achieving the purpose of reducing structural redundancy, more convenient control, high integration, and Effectively reduce manufacturing costs.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Reference signs include:

10--rubber strip, 1--gun housing, 11--grip,

111--perforation, 12--glue filling port, 13--glue outlet,

2--melt glue propulsion unit, 21--trigger, 22--push glue mechanism,

23--heater, 3--control assembly, 31--timing device,

32---warning device, 321---sound effect warning device, 322---light effect warning device.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

Referring to FIG. 1 , the embodiment of the new safety hot melt glue gun is suitable for melting glue strips 10 to output melt glue liquid, and includes a gun housing 1 , a melt glue propulsion unit 2 , and a control assembly 3 .

The gun housing 1 includes a grip portion 11 for holding, a glue filling port 12 provided at the end of the gun housing 1 for filling the rubber strip 10 , and an opening at the other end of the gun housing 1 The grip portion 11 is provided with a perforation 111 for the glue outlet 13 for outputting the molten glue.

The melt glue propulsion unit 2 includes a trigger 21, a glue pushing mechanism 22 controlled by the trigger 21, and a heater 23 for heating the rubber strip 10. Push the rubber strip 10 in the direction of the opening 13, and control the rubber pushing mechanism 22 to stop pushing the rubber strip 10 when the trigger 21 is in the release position.

The control assembly 3 is accommodated in the grip portion 11 of the gun housing 1 and includes a timing device 31 and a warning device 32 electrically connected to and controlled by the timing device 31 . The warning device 32 has a sound effect warning device 321 and a light effect warning device 322 , and the light effect warning device 322 corresponds to the perforation 111 of the handle portion 11 for exposing the light emitted by the light effect warning device 322 . The sound effect warning device 321 and the light effect warning device 322 adopted in this embodiment are a buzzer and a light emitting diode respectively.

The hot melt glue gun is added with a timing device 31, and then the metering module 31 is electrically connected with the warning device 32 for control, so as to achieve the purpose of reducing structural redundancy, the control is more convenient, the integration is high, and the manufacturing cost can be effectively reduced .

This hot melt glue gun further discloses the control scheme, as the preferred control scheme of the timing device 31 is: the timing device 31 starts counting and forms the first delay time T1 when the heater 23 starts heating, when the first delay time T1 After the end, the timing device 31 controls the warning device 32 to send out a warning signal. Wherein, the first delay time T1 corresponds to the time required for the heater 23 to heat up to an optimum working temperature for melting the adhesive strip 10, and the optimum operating temperature corresponding to the commonly used adhesive strip 10 is between 180°C and Between 200°C. Therefore, the warning signal reminds the user that the hot melt glue gun is already in a state capable of outputting melt glue with sufficient adhesiveness.

The timing device 31 also starts counting when the trigger 21 is at the release position, forming a second delay time T2 longer than the first delay time T1, and when the trigger 21 continues to be at the release position within the second delay time T2, the The timing device 31 controls the warning device 32 to send another warning signal after the second delay time T2 ends. Therefore, the other warning signal reminds the user that the hot melt glue gun has not been used for the second delay time T2.

On the other hand, the timing device 31 stops timing when the trigger 21 is switched to the trigger position within the second delay time T2, and re-times the next second delay when the trigger 21 is reset to the release position. Time T2. In the timing process of the next second delay time T2, if the trigger 21 continues to be at the release position, the timing device 31 controls the warning device 32 to send the other trigger after the next second delay time T2 ends. A warning sign. By analogy, as long as the trigger 21 stays at the release position for longer than or equal to the second delay time T2, the warning device 32 will send out another warning signal to remind the user.

Through the above description, the above embodiment combined with the preferred control method has the following advantages:

1. The first delay time T1 is formed by timing the timing device 31 at the same time when the heater 23 starts heating, and when the first delay time T1 ends, the warning device 32 is controlled to send a warning signal to remind the user of the heater 23 has been heated up to a temperature suitable for melting the glue strip 10 to output melt glue with better adhesiveness, that is to say the hot melt glue gun is in a state suitable for use. And when the trigger 21 is at the release position, the timing device 31 controls the warning device 32 to send the other warning signal to indicate to the user that the hot melt glue gun has not been used for the second delay time T2, so as to achieve utilization The timing device and warning device are used to indicate the state of the hot melt glue gun and improve the safety of use.

2. Since the warning device 32 has the sound effect warning device 321 and the light effect warning device 322, the warning signal can be conveyed to the user simultaneously with both sound and light effects.

3. By using the timing device 31 in combination with the sound effect warning device 321 and the light effect warning device 322 implemented by buzzers and light emitting diodes, the purpose of safety reminder can be achieved in a low-cost manner.

4. Since the first delay time T1 corresponds to the time required for the heater 23 to heat up to the optimal working temperature for melting the rubber strip 10, the user receives the warning signal corresponding to the first delay time T1 , you can immediately use the melt glue with better adhesiveness to carry out the next operation.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (5)

1. a kind of safe thermosol gelgun is it is adaptable to melting adhesive tape is to export melten gel liquid it is characterised in that comprising:

Gun housing body, including for grip grip part, be opened in this gun housing body one end and for load adhesive tape filler mouth and It is opened in the other end of this gun housing body and for the gum exudation mouth for output melten gel liquid；

Melten gel propulsion unit, pushes away gluing mechanism including trigger, by what this trigger controlled, and for heating the heater of adhesive tape, when pulling Machine controls this to push away gluing mechanism towards the direction propulsion adhesive tape of gum exudation mouth when being located at trigger position, control when trigger is located at off-position This pushes away gluing mechanism and stops propulsion adhesive tape；And

Control assembly, be located in gun housing body, and include time set and electrical connection and the controlled warning being formed on this time set Device.

2. as claimed in claim 1 safe thermosol gelgun it is characterised in that: alarming device has audio attention device.

3. as claimed in claim 2 safe thermosol gelgun it is characterised in that: audio attention device be buzzer.

4. as claimed in claim 1 safe thermosol gelgun it is characterised in that: control assembly to be located in the gripping of this gun housing body Portion, this grip part is provided with a perforation, and this alarming device has a light efficiency attention device, and this light efficiency attention device is to should grip part Perforation.

5. as claimed in claim 4 safe thermosol gelgun it is characterised in that: this light efficiency attention device be a light emitting diode.