CN111905986A - Hot melt glue gun - Google Patents
Hot melt glue gun Download PDFInfo
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- CN111905986A CN111905986A CN202010851393.2A CN202010851393A CN111905986A CN 111905986 A CN111905986 A CN 111905986A CN 202010851393 A CN202010851393 A CN 202010851393A CN 111905986 A CN111905986 A CN 111905986A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/0103—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like with electrically actuated piston or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00503—Details of the outlet element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material
- B05C17/00526—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material the material being supplied to the apparatus in a solid state, e.g. rod, and melted before application
- B05C17/0053—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material the material being supplied to the apparatus in a solid state, e.g. rod, and melted before application the driving means for the material being manual, mechanical or electrical
- B05C17/00533—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material the material being supplied to the apparatus in a solid state, e.g. rod, and melted before application the driving means for the material being manual, mechanical or electrical comprising a piston
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material
- B05C17/00546—Details of the heating means
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Coating Apparatus (AREA)
Abstract
The invention relates to the technical field of hot melt glue guns. The hot melt glue gun is characterized in that a left shell and a right shell are mutually covered to form a shell body with a cylinder body and a handle, a circuit board and a storage battery are installed in the handle, a power switch button and a driving switch button are installed outside the handle, and a charging interface is also installed outside the handle; a driving structure for driving the glue stick to move towards the front end or the rear end of the cylinder body at a constant speed is arranged in the cylinder body, and a glue discharging structure which heats and melts the glue stick and discharges glue and has a temperature detection function is also arranged in the cylinder body; the driving structure comprises a motor; the glue outlet structure comprises a heater and a temperature sensor; the cylinder body is also provided with a glue stick hole; the power switch key, the driving switch key, the storage battery, the charging interface, the driving structure and the glue outlet structure are electrically connected with the circuit board; the circuit board is provided with a control circuit. The hot melt glue gun provided by the invention has the advantages of convenience in use, small operation force, uniform glue discharging, easiness in controlling the position of the glue discharging port during use, energy conservation, safety, economization and the like.
Description
Technical Field
The invention relates to the technical field of hot melt glue guns, in particular to a hot melt glue gun.
Background
The hot melt glue gun can be used for coating the glue stick on the adhered object after the glue stick is melted, and the adhered object is adhered after the melted glue is dried. Most of the glue discharging modes of the existing hot melt glue guns are manual glue discharging, and the manual glue discharging mode is that an operator presses a button or other driving structures by hands to drive a glue rod to move forwards so as to discharge glue. The hot melt glue gun adopting manual glue discharging has the following disadvantages: the operation is inconvenient, the pressing force is large, the glue discharging is not uniform, the position of the glue discharging port is easy to move, and the glue is easy to overflow after the operation is stopped.
Disclosure of Invention
The invention aims to provide the hot melt glue gun which is convenient to operate, small in operation force, uniform in glue discharging, easy to control the position of a glue discharging opening and difficult to overflow glue.
Therefore, the invention adopts the following technical scheme:
the hot melt glue gun comprises a shell body which is formed by mutually covering a left shell and a right shell and is provided with a cylinder body and a handle, and is characterized in that,
a circuit board and a storage battery are arranged in the handle,
a power switch button, a driving switch button and a charging interface are arranged outside the handle;
the glue discharging device comprises a cylinder body, a glue discharging structure and a glue discharging structure, wherein the cylinder body is internally provided with a driving structure which is positioned at the middle end of the cylinder body and used for driving a glue stick to move towards the front end or the rear end of the cylinder body at a constant speed, and the glue discharging structure is positioned at the front end of the cylinder body, is used for heating and melting the glue stick and discharging glue and has a temperature detection function;
the drive structure comprises a motor;
the glue outlet structure comprises a heater and a temperature sensor;
a glue stick hole which is provided with an opening at the tail end of the cylinder body, penetrates through the driving structure and is communicated with the glue outlet structure is also arranged in the cylinder body;
the power switch key, the driving switch key, the storage battery, the charging interface, the driving structure and the glue discharging structure are all electrically connected with the circuit board;
the circuit board is provided with a control circuit.
The hot melt glue gun provided by the invention has the advantages of convenience in use, small operation force, uniform glue discharging, easiness in controlling the position of the glue discharging port during use, energy conservation, safety, economization and the like.
Drawings
FIG. 1 is a schematic view of a first perspective three-dimensional structure of a hot melt gun according to an embodiment;
FIG. 2 is a first exploded view of the hot melt gun according to an embodiment;
FIG. 3 is a schematic diagram of a second disassembled structure with a first view angle of the hot melt gun according to the embodiment;
FIG. 4 is a schematic diagram of a second disassembled structure at a first viewing angle for inserting a glue stick into a hot melt glue gun according to an embodiment;
FIG. 5 is a schematic cross-sectional view of a hot melt gun according to an embodiment;
FIG. 6 is a schematic view of a first perspective three-dimensional structure of a driving structure of a hot melt gun according to an embodiment;
FIG. 7 is a second perspective view of a driving structure of a hot melt gun according to an embodiment;
FIG. 8 is a first perspective first exploded view of an adhesive dispensing structure of the hot melt adhesive gun according to an embodiment;
FIG. 9 is a schematic view of a first-view second-disassembled structure of a glue discharging structure of the hot melt glue gun according to the embodiment;
FIG. 10 is a schematic block diagram of the circuit implementing the provided hot melt gun;
FIG. 11 is a schematic diagram of a battery charging circuit embodying the provided hot melt glue gun;
FIG. 12 is a schematic diagram of an LDO power conversion circuit implementing the provided hot melt glue gun;
FIG. 13 is a schematic diagram of a motor drive protection circuit for implementing the hot melt gun;
FIG. 14 is a schematic circuit diagram of a battery voltage detection circuit implementing the provided hot melt glue gun;
FIG. 15 is a schematic circuit diagram of a control circuit for a heater of the hot melt glue gun;
FIG. 16 is a schematic circuit diagram of a temperature sensing circuit for implementing the hot melt gun;
fig. 17 is a schematic diagram of a main control circuit of the hot melt gun.
In the figure:
the number of the housings 1 is such that,
a left shell 11 and a right shell 12,
a cylinder body 131 and a handle 132,
a power switch key 21 and a drive switch key 22;
the drive structure (4) is arranged such that,
a motor 41 and a driving screw rod 42,
a first driven gear 431, a first driving rotation shaft 432,
the reverse-rotation gear 44 is provided with a reverse-rotation gear,
a second driven gear 451, a second driving rotation shaft 452,
a first positioning rotating shaft 461, a second positioning rotating shaft 462,
a first fixing plate 471 and a second fixing plate 472;
the glue outlet structure (5) is provided with a glue outlet structure,
a heat insulation nozzle sleeve 51, a first heat insulation sleeve 52, a hot nozzle 53, a nozzle part 531, a body part 532, a heater 54, a temperature sensor 55 and a second heat insulation sleeve 56;
and (6) a glue stick.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
Reference is made to fig. 1-9.
The hot melt glue gun of the present embodiment comprises a housing 1 formed by a left shell 11 and a right shell 12 covering each other and having a barrel 131 and a handle 132,
the circuit board 31 and the storage battery 32 are installed in the handle 132,
a power switch key 21 and a driving switch key 22 are arranged outside the handle 132, and a charging interface 33 is also arranged;
a driving structure 4 which is positioned at the middle end of the cylinder body 131 and used for driving the glue stick 6 to move towards the front end or the rear end of the cylinder body 131 at a constant speed is arranged in the cylinder body 131, and a glue discharging structure 5 which is positioned at the front end of the cylinder body 131, heats and melts the glue stick 6 and discharges glue and has a temperature detection function is also arranged;
the drive structure 4 comprises an electric motor 41;
the glue discharging structure 5 comprises a heater 54 and a temperature sensor 55;
a glue stick hole 14 which is provided with an opening at the tail end of the cylinder body 131, penetrates through the driving structure 4 and is communicated with the glue outlet structure 5 is also arranged in the cylinder body 131;
the power switch key 21, the driving switch key 22, the storage battery 32, the charging interface 33, the driving structure 4 and the glue discharging structure 5 are all electrically connected with the circuit board 31;
the circuit board 31 is provided with a control circuit.
The working principle and the using mode of the hot melt glue gun are explained as follows:
the power supply of the hot melt adhesive gun can be turned on or off through the power switch key 21, and the storage battery 32 of the hot melt adhesive gun can be charged through the charging interface 33.
The glue stick 6 is inserted into the glue stick hole, the power supply of the hot melt glue gun is turned on, and when the driving switch button 22 is pressed, the circuit board 31 controls the driving structure 4 and the glue discharging structure 5 to start working. The driving structure 4 moves the glue stick 6 towards the front end of the cylinder body 131 at a constant speed and stops working after moving to the glue discharging structure 5, and at the moment, the glue discharging structure 5 is continuously heated; when the glue outlet structure 5 detects that the temperature reaches the set value, the glue of the part of the glue stick 6 positioned on the glue outlet structure 5 is melted, and the driving structure 4 starts to work again to move the glue stick 6 forwards so as to extrude the melted glue.
When the driving switch button 22 is continuously pressed, and when the hot melt adhesive gun starts to discharge adhesive and the adhesive stick 6 is not used up, the driving structure 4 always drives the adhesive stick to move forward at a constant speed, and simultaneously the adhesive discharge structure 5 always heats at a constant temperature, so that the hot melt adhesive gun can continuously and uniformly discharge adhesive.
By last, the user can realize automatic even play glue through continuously pressing drive switch button 22 when using this hot melt adhesive rifle, from this, this hot melt adhesive rifle convenient to use, operating force are little, go out to glue even, easily control out the jiao kou position during the use.
In addition, after the glue stick 6 is used up, the glue discharging structure 5 detects that the temperature is too high, and at this time, the circuit board 31 controls the driving structure 4 and the glue discharging structure 5 to stop working, so that the hot melt glue gun has the advantages of energy conservation and safety.
In addition, when the drive switch button 22 stops to press and glue stick 4 and not use up, circuit board 31 can control drive structure 4 and can be with gluing the stick toward returning back a section distance, thereby prevent out glue structure 5 and continue to go out glue and will go out glue structure 5 glue toward retrieving a bit through this mode to avoid out glue structure 5 to overflow and glue, from this, this hot melt glue rifle still possesses the advantage of saving.
In conclusion, the hot melt adhesive gun provided by the embodiment has the advantages of convenience in use, small operation force, uniform adhesive discharging, easiness in controlling the position of the adhesive discharging port during use, energy conservation, safety, economization and the like.
Further, the driving structure 4 includes a motor 41, a driving screw 42, a first driven gear 431, a first driving rotating shaft 432, a reversing gear 44, a second driven gear 451, a second driving rotating shaft 452, a first positioning rotating shaft 461, a second positioning rotating shaft 462, a first fixing plate 471 and a second fixing plate 472;
the first fixing plate 471, the second fixing plate 472 and the motor 41 are all fixedly installed in the barrel 131;
two ends of the first positioning rotating shaft 461 and the second positioning rotating shaft 462 are respectively fixedly connected to the first fixing plate 471 and the second fixing plate 472 through bearings;
the first ends of the first driving rotating shaft 432 and the second driving rotating shaft 452 are fixedly connected to the first fixing plate 471 through bearings and exposed out of the first fixing plate 471, and the second ends are fixedly connected to the second fixing plate 472 through bearings;
the first driven gear 431 is fixedly connected to one end of the first driving rotating shaft 432 exposed out of the first fixing plate 471,
the second driven gear 451 is fixedly connected to one end of the second driving shaft 452 exposed to the first fixing plate 471,
the counter gear 44 is fixedly mounted on the first fixing plate 471 through a bearing;
the driving screw 42 is fixedly mounted on the output shaft of the motor 41;
the drive screw 42, the first driven gear 431, the counter gear 44, and the second driven gear 451 are sequentially engaged;
the first driving shaft 432 and the second driving shaft 452 are located at one side of the glue stick hole 14,
the first positioning rotating shaft 461 and the second positioning rotating shaft 462 are located at the other side of the glue stick hole 14 and respectively correspond to the first driving rotating shaft 432 and the second driving rotating shaft 452;
the motor 41 is electrically connected to the circuit board 31.
The working principle of the drive structure 4 is explained below:
the control circuit 31 controls the motor 41 to work, and when the motor 41 works, the motor 41 drives the driving screw 42 to rotate, so as to drive the first driven gear 431, the reverse gear 44 and the second driven gear 451 to rotate in sequence, and further drive the first driving rotating shaft 432 and the second driving rotating shaft 452 to rotate.
When the driving switch button 22 is continuously pressed, the motor 41 continuously rotates forward, and at this time, when the glue stick 6 abuts between the first driving rotating shaft 432 and the first positioning rotating shaft 461, the glue stick is driven by the first driving rotating shaft 432 to move forward at a constant speed, and then moves between the second driving rotating shaft 452 and the second positioning rotating shaft 462, and is driven by the first driving rotating shaft 432 and the second driving rotating shaft 452 to move forward at a constant speed to the glue discharging structure 5.
When the driving switch 22 stops pressing, the motor 41 rotates reversely by a certain angle, and at this time, the first driving rotating shaft 432 and the second driving rotating shaft 452 drive the glue stick 6 to move back by a certain distance.
This drive structure 4 has adopted first drive pivot 432, second drive pivot 452, first location pivot 461, second location pivot 462, totally two sets of drives, the location pivot to form two application of force points to gluing stick 6, can make the moving speed of gluing stick 6 more stable, move and link up and the direction of movement more accurate.
Further, the first positioning rotating shaft 461 and the second positioning rotating shaft 462 are cylindrical;
the diameters of the first driving shaft 432 and the second driving shaft 452 in the middle of the section between the first fixing plate 471 and the second fixing plate 472 are smaller than the diameters of the two ends, and the outer side surfaces are arc-shaped.
The first positioning rotating shaft 461, the second positioning rotating shaft 462, the first driving rotating shaft 432 and the second driving rotating shaft 452 are structurally arranged, so that the rubber rod 6 can be more stably fixed and driven.
Further, the maximum distance between the first driving rotating shaft 432 and the first positioning rotating shaft 461 is 85-90% of the diameter of the glue stick 6;
the maximum distance between the second driving rotating shaft 452 and the second positioning rotating shaft 462 is 85-90% of the diameter of the glue stick 6.
The maximum distance between the first driving rotating shaft 432 and the first positioning rotating shaft 461, i.e. the distance between the position where the diameter of the first driving rotating shaft 432 is minimum and the first positioning rotating shaft 461, can more stably fix and drive the glue stick 6.
The maximum distance between the second driving shaft 452 and the second positioning shaft 462 is the same.
Further, the glue outlet structure 5 comprises a heat insulation nozzle sleeve 51, a first heat insulation sleeve 52, a hot nozzle 53, a heater 54, a temperature sensor 55 and a second heat insulation sleeve 56;
the heat insulation nozzle sleeve 51 is sleeved on the front end of the first heat insulation sleeve 52 and exposed out of the front end of the cylinder body 131,
the hot nozzle 53 includes a conical nozzle portion 531 and a cylindrical body portion 532 at a rear end of the nozzle portion 531,
the heater 54 is annular and is sleeved on a section of the body 532 close to the mouth 531,
the second insulating sleeve 56 is attached to the rear end of the body portion 532,
the temperature sensor 55 is arranged on the outer surface of the body 532 and close to the rear end of the heater 54;
the hot nozzle 53, the heater 54, the temperature sensor 55 and the second heat insulation sleeve 56 are all sleeved in the first heat insulation sleeve 52, and the front end of the nozzle 531 is exposed out of the heat insulation nozzle sleeve 51;
the heater 54 and the temperature sensor 55 are electrically connected to the circuit board 31.
In the glue discharging structure 5, the annular heater 54 is adopted, and the heater 54 is sleeved on a section of the body 532 of the hot nozzle 53 close to the mouth 531, so that on one hand, the heat transfer is more effective, and on the other hand, the heating position is more forward, thereby accelerating the first glue discharging speed;
in addition, the glue outlet structure 5 is simple in structure, and can be assembled without screws and only needs to be adhered and fixed by glue, so that the production is convenient, and the cost can be reduced.
Further, the heat insulation nozzle sleeve 51 is a silica gel heat insulation nozzle sleeve 51, the first heat insulation sleeve 52 is a PPS hard glue heat insulation sleeve 52, the hot nozzle 53 is a brass alloy hot nozzle 53, the heater 54 is a ceramic heater 54, and the second heat insulation sleeve 56 is a silica gel heat insulation sleeve 56.
Reference is made to fig. 10-17 in conjunction with fig. 1-9.
In fig. 10, the line with the arrow is a power connection and the arrow is a power transmission direction, and the line without the arrow is a signal connection.
Further, the control circuit comprises a battery charging circuit 81, an LDO power conversion circuit 82, a motor drive protection circuit 83, a battery voltage detection circuit 84, a heater control circuit 85, a temperature detection circuit 86, and a main control circuit 87;
the battery charging circuit 81, the LDO power conversion circuit 82, the motor driving protection circuit 83, the battery voltage detection circuit 84 and the heater control circuit 85 are respectively electrically connected with the storage battery 32,
the battery charging circuit 81, the temperature detection circuit 86 and the main control circuit 87 are respectively electrically connected with the LDO power conversion circuit 82,
the battery charging circuit 81, the motor driving protection circuit 83, the battery voltage detection circuit 84, the heater control circuit 85 and the temperature detection circuit 86 are respectively electrically connected with the main control circuit 87,
the motor drive protection circuit 83 is electrically connected to the motor 41,
the heater control circuit 85 is electrically connected to the heater 54,
the temperature detection circuit 86 is electrically connected to the temperature sensor 55.
The following description is made of the operating principle of the control circuit provided in this embodiment:
the input end of the battery charging circuit 81 is connected with a power adapter, the power of the power adapter is converted and then charged into the storage battery 32, and the storage battery 32 respectively supplies power for the LDO power conversion circuit 82, the motor drive protection circuit 83, the battery voltage detection circuit 84 and the heater control circuit 85;
the LDO power conversion circuit 82 converts the power of the storage battery 32 and supplies power to the battery charging circuit 81, the temperature detection circuit 86 and the main control circuit 87;
the motor driving protection circuit 83 drives the motor 41 to operate and performs related circuit protection such as overcurrent and locked rotor on the motor 41, the heater control circuit 85 controls the operation of the heater 54, and the temperature detection circuit 86 receives a temperature signal detected by the temperature sensor 55;
the main control circuit 87 may monitor the state of charge of the battery charging circuit 81 so that the user may be informed of the state of charge of the battery 32;
the main control circuit 87 can receive an operation instruction of a user so as to control the motor to drive the protection circuit 83 to work and further control the motor 41 to rotate forwards or backwards, so that the glue stick 6 can be driven to move towards the front end or the rear end of the cylinder body 131 at a constant speed;
the main control circuit 87 can receive the voltage signal of the storage battery 32 detected by the battery voltage detection circuit 84, and send the voltage information of the storage battery 32 to the user through the detected voltage signal so as to inform the user of the electric quantity condition of the storage battery 32;
the main control circuit 87 can control the operation of the heater control circuit 85 to further control the heating or stop heating and heating power of the heater 54, so that the glue stick 6 can be heated and melted according to the actual use condition;
the main control circuit 87 can receive the temperature signal received by the temperature detection circuit 86 to further control the operation state of the heater control circuit 85.
By last, this control circuit can control the automatic even play of hot melt adhesive rifle and glue, and then the hot melt adhesive rifle that is provided with this control circuit has convenient to use, the operating force is little, go out to glue even, easily control during the use and go out gluey mouthful position, glue is difficult for spilling over, energy-conservation, safety, saving etc. advantages.
Further, the battery charging circuit 81 includes a TYPE-C interface J1, a capacitor C3, a resistor R11, an N-channel enhanced MOS transistor Q7 of a DTS3402 model, a resistor R7, a resistor R8, a resistor R9, a power chip U12 of a TCS4060 model, a resistor R10, a capacitor C4, a capacitor C5, a battery interface J3, a resistor R17, and a resistor R18;
the B1 pin and the A12 pin of the TYPE-C interface J1 are grounded;
a pin 4 of a power chip U12 is connected with a pin A4, a pin B9, a pin B4 and a pin A9 of a TYPE-C interface J1, the pin 4 is grounded through a capacitor C3, the pin 4 is connected with a pin 1 through a resistor R7, the pin 1 is grounded through a resistor R8 and a resistor R9 in sequence, the pin 2 is grounded, the pin 5 is grounded through a resistor R10, and the pin 3 is grounded through a capacitor C4 and a capacitor C5 respectively;
the G pole of the MOS transistor Q7 is connected between the resistor R8 and the resistor R9, the D pole is connected with the output end of the LDO power conversion circuit 82 through the resistor R11, the D pole is connected with the battery charging state monitoring end of the main control circuit 87, and the S pole is grounded;
a4 pin, B9 pin, B4 pin and A9 pin of the TYPE-C interface J1 are grounded sequentially through a resistor R17 and a resistor R18, and the connection end of the resistor R17 and the resistor R18 is connected with the external power supply detection end of the main control circuit 87;
the pin 1 of the battery interface J3 is connected to the pin 3 of the power chip U12 and to the positive electrode of the battery 32, and the pin 2 is connected to the ground and to the negative electrode of the battery 32.
The battery charging circuit 81 is connected with an external power supply through a TYPE-C interface J1, when the TYPE-C interface J1 is connected with the external power supply, a power chip U12 can detect the voltage of the storage battery 32, when the voltage of the storage battery 32 is detected to be lower than a preset value, the power chip U12 starts to work to charge the storage battery, and when the voltage of the storage battery 32 is detected to reach the preset value, the charging is stopped.
When the TYPE-C interface J1 is connected to an external power supply, the external power supply detection terminal of the main control circuit 87 can detect the connection of the external power supply, and the battery charging state monitoring terminal can monitor the charging state of the storage battery 32.
In this embodiment, the battery charging circuit 81 further includes a surge protection circuit composed of a capacitor C10 and a zener diode Z1, the anode of the battery 32 is grounded through the capacitor C10, and the cathode of the zener diode Z1 is grounded to the anode and the anode of the battery 32.
Further, the LDO power conversion circuit 82 includes a power conversion chip U2 with model number XC6206P302MR, a capacitor C6, a capacitor C7, and a capacitor C8;
the pin 3 of the power conversion chip U2 is grounded through the capacitor C6 and the capacitor C7, the pin 3 is connected to the anode of the battery 32, the pin 1 is grounded, the pin 2 is grounded through the capacitor C8, and the pin 2 is used as the output end of the LDO power conversion circuit 82.
Since the temperature detection circuit 86 and the main control circuit 87 need to stably supply power, the power of the battery 32 is converted into a stable power to supply power by the LDO power conversion circuit 82 in this embodiment, and in addition, the main control circuit 87 needs to accurately monitor the charging state of the battery charging circuit 81, so the LDO power conversion circuit 82 needs to provide a stable power for the charging state detection circuit part of the battery charging circuit 81. Therefore, the present embodiment realizes stable power supply by the LDO power conversion circuit 82.
Further, the motor driving protection circuit 83 includes a motor driving chip U3 with model number HT7K1201, a resistor R1, a resistor R2, and a capacitor C11;
the 5 feet of the motor driving chip U3 are connected with the anode of the storage battery 32, the 4 feet and the 3 feet are respectively connected with the first output control end of the direct current motor and the second output control end of the direct current motor of the main control circuit 87, the 4 feet and the 3 feet are respectively grounded through a resistor R1 and a resistor R2, the 2 feet are grounded, a capacitor C11 is connected between the 1 foot and the 6 feet, and the 1 foot and the 6 feet are respectively connected with the two poles of the motor 41.
The motor driving chip U3 receives the control signal output by the main control circuit 87 through the 4-pin and 3-pin, and then outputs current through the 6-pin and 1-pin to control the motor 41 to rotate forward or backward, and related circuit protection such as overcurrent and locked rotation can be performed on the motor 41 by means of the protection function of the motor driving chip U3.
Further, the battery voltage detection circuit 84 includes a resistor R14, a resistor R15;
the positive electrode of the battery 32 is grounded through a resistor R14 and a resistor R15 in sequence,
the connection end of the resistor R14 and the resistor R15 is connected with the battery voltage detection end of the main control circuit 87.
The battery voltage detection circuit 84 transmits the detected battery voltage signal to the main control circuit 87, and the main control circuit 87 sends the detected voltage signal to the user to inform the user of the power condition of the storage battery 32.
Further, the heater control circuit 85 includes an N-channel enhancement type MOS transistor Q8 with model VS36101D, a resistor R12, and a resistor R13;
the S pole of the MOS transistor Q8 is grounded through a resistor R12, and the G pole is connected with the control end of the heater of the main control circuit 87 through a resistor R13;
the positive electrode of the heater 54 is connected to the positive electrode of the battery 32, and the negative electrode is connected to the D electrode of the MOS transistor Q8.
The heater control end of the main control circuit 87 controls the working state of the MOS transistor Q8 by outputting a PWM control signal to control the heater 54 to generate heat or stop generating heat and the heating power, so that the glue stick 6 can be heated and melted according to the actual use condition.
Further, the temperature detection circuit 86 includes a resistor R16;
the NTC terminal of the temperature sensor 55 is connected to the output terminal of the LDO power conversion circuit 82 through a resistor R16, the NTC terminal is connected to the temperature detection terminal of the main control circuit 87, and the GND terminal is grounded.
The temperature detection circuit 86 can transmit the temperature signal of the heater 54 detected by the temperature sensor 55 to the main control circuit 87, so that the main control circuit 87 can more accurately, safely and effectively control the working state of the heater control circuit 85, for example, when the temperature signal detected by the temperature sensor 55 is lower than a preset value, the main control circuit 87 controls the heater control circuit 85 to further control the heater 54 to increase the heating power so as to speed up melting the glue stick 6, and when the detected temperature signal is higher than the preset value, the main control circuit 87 controls the heater control circuit 85 to further control the heater 54 to reduce the heating power or control the heater control circuit 85 to stop working.
Further, the main control circuit 87 comprises a single chip microcomputer U1 with model number HT66F018, a capacitor C2, a capacitor C1, a resistor R21, a capacitor C9, a light emitting diode LED1, a light emitting diode LED2, a resistor R19, a resistor R20, a switch KEY1 and a switch KEY 2;
the 1 pin of the singlechip U1 is grounded,
the battery charging state monitoring terminal of the 4-pin main control circuit 87 is connected with a battery charging circuit (81),
the 9 pins are used as the heater control end of the main control circuit 87 and are connected with the heater control circuit 85,
the battery voltage detection end of the 10 pins serving as the main control circuit 87 is connected with the battery voltage detection circuit 84, the 11 pins are grounded through a resistor R21 and a capacitor C9 in sequence,
the external power detection terminal of the 12-pin main control circuit 87 is connected with the battery charging circuit 81,
the pin 13 is used as a temperature detection terminal of the main control circuit 87 and is connected with the temperature detection circuit 86,
the pins 14 and 15 are respectively used as the second output control end of the direct current motor of the main control circuit 87, the first output control end of the direct current motor is connected with the motor drive protection circuit 83,
the pin 16 is connected to the output end of the LDO power conversion circuit 82, and the pin 16 is grounded through a capacitor C2 and a capacitor C1, respectively.
In the main control circuit 87, the 2 pin and the 3 pin of the singlechip U1 are used for respectively controlling the light emitting states of the light emitting diode LED1 and the light emitting diode LED2 so as to send information such as the on-off state, the battery charging state, the battery electric quantity information, the running condition of the motor 41 and the like of the hot melt adhesive gun to a user; the 6-pin and 8-pin respectively receive the on signals of the switch KEY1 and the switch KEY2 so as to receive the operation information of the user, thereby performing related operations such as power on and off, charging, operation of the motor 41, heating of the heater 54, and the like.
Wherein the switch KEY2 is controlled by the power switch KEY 21, and the switch KEY1 is controlled by the driving switch KEY 22.
The above is illustrative of the present invention.
Claims (14)
1. A hot melt glue gun comprises a shell (1) which is formed by mutually covering a left shell (11) and a right shell (12) and is provided with a cylinder body (131) and a handle (132), and is characterized in that,
a circuit board (31) and a storage battery (32) are arranged in the handle (132),
a power switch key (21), a driving switch key (22) and a charging interface (33) are arranged outside the handle (132);
a driving structure (4) which is positioned at the middle end of the cylinder body (131) and is used for driving the glue stick (6) to move towards the front end or the rear end of the cylinder body (131) at a constant speed is arranged in the cylinder body (131), and a glue discharging structure (5) which is positioned at the front end of the cylinder body (131) and is used for heating and melting the glue stick (6) and discharging glue and has a temperature detection function is also arranged;
the drive structure (4) comprises a motor (41);
the glue outlet structure (5) comprises a heater (54) and a temperature sensor (55);
a glue stick hole (14) which is provided with an opening at the tail end of the cylinder body (131), penetrates through the driving structure (4) and is communicated with the glue outlet structure (5) is also arranged in the cylinder body (131);
the power switch key (21), the driving switch key (22), the storage battery (32), the charging interface (33), the driving structure (4) and the glue outlet structure (5) are all electrically connected with the circuit board (31);
the circuit board (31) is provided with a control circuit.
2. The hot melt adhesive gun according to claim 1, wherein the driving structure (4) comprises a motor (41), a driving screw (42), a first driven gear (431), a first driving shaft (432), a reversing gear (44), a second driven gear (451), a second driving shaft (452), a first positioning shaft (461), a second positioning shaft (462), a first fixing plate (471) and a second fixing plate (472);
the first fixing plate (471), the second fixing plate (472) and the motor (41) are all fixedly arranged in the cylinder body (131);
two ends of the first positioning rotating shaft (461) and the second positioning rotating shaft (462) are respectively and fixedly connected to the first fixing plate (471) and the second fixing plate (472) through bearings;
first ends of the first driving rotating shaft (432) and the second driving rotating shaft (452) are fixedly connected to the first fixing plate (471) through bearings and exposed out of the first fixing plate (471), and second ends of the first driving rotating shaft and the second driving rotating shaft are fixedly connected to the second fixing plate (472) through bearings;
the first driven gear (431) is fixedly connected to one end of the first driving rotating shaft (432) exposed out of the first fixing plate (471),
the second driven gear (451) is fixedly connected to one end of the second driving rotating shaft (452) exposed out of the first fixing plate (471),
the counter gear (44) is fixedly arranged on the first fixing plate (471) through a bearing;
the driving screw rod (42) is fixedly arranged on an output shaft of the motor (41);
the drive screw (42), the first driven gear (431), the counter gear (44), and the second driven gear (451) are sequentially engaged;
the first driving rotating shaft (432) and the second driving rotating shaft (452) are positioned at one side of the glue stick hole (14),
the first positioning rotating shaft (461) and the second positioning rotating shaft (462) are positioned at the other side of the glue stick hole (14) and respectively correspond to the first driving rotating shaft (432) and the second driving rotating shaft (452);
the motor (41) is electrically connected with the circuit board (31).
3. The hot melt glue gun according to claim 2, characterized in that said first positioning spindle (461), said second positioning spindle (462) are cylindrical;
the diameters of the first driving rotating shaft (432) and the second driving rotating shaft (452) in the middle of a section between the first fixing plate (471) and the second fixing plate (472) are smaller than those of the two ends, and the outer side surface of the first driving rotating shaft and the second driving rotating shaft is arc-shaped.
4. The hot melt glue gun as recited in claim 3,
the maximum distance between the first driving rotating shaft (432) and the first positioning rotating shaft (461) is 85-90% of the diameter of the glue stick (6);
the maximum distance between the second driving rotating shaft (452) and the second positioning rotating shaft (462) is 85-90% of the diameter of the glue stick (6).
5. The hot melt adhesive gun according to claim 1, wherein the adhesive dispensing structure (5) comprises a heat insulating nozzle sleeve (51), a first heat insulating sleeve (52), a hot nozzle (53), a heater (54), a temperature sensor (55) and a second heat insulating sleeve (56);
the heat insulation mouth sleeve (51) is sleeved at the front end of the first heat insulation sleeve (52) and exposed out of the front end of the cylinder body (131),
the hot nozzle (53) comprises a conical mouth (531) and a cylindrical body (532) located at the rear end of the mouth (531),
the heater (54) is annular and is sleeved on a section of the body part (532) close to the mouth part (531),
the second heat insulation sleeve (56) is connected to the rear end connected to the body part (532),
the temperature sensor (55) is arranged on the outer surface of the body part (532) and is close to the rear end of the heater (54);
the hot nozzle (53), the heater (54), the temperature sensor (55) and the second heat insulation sleeve (56) are all sleeved in the first heat insulation sleeve (52), and the front end of the nozzle part (531) is exposed out of the heat insulation nozzle sleeve (51);
the heater (54) and the temperature sensor (55) are respectively electrically connected with the circuit board (31).
6. A hot melt glue gun according to claim 5, characterized in that said heat insulating nozzle sleeve (51) is a silica gel heat insulating nozzle sleeve (51), said first heat insulating sleeve (52) is a PPS hard glue heat insulating sleeve (52), said hot nozzle (53) is a brass alloy hot nozzle (53), said heater (54) is a ceramic heater (54), and said second heat insulating sleeve (56) is a silica gel heat insulating sleeve (56).
7. The hot melt adhesive gun according to claim 1, wherein the control circuit comprises a battery charging circuit (81), an LDO power conversion circuit (82), a motor drive protection circuit (83), a battery voltage detection circuit (84), a heater control circuit (85), a temperature detection circuit (86), and a main control circuit (87);
the battery charging circuit (81), the LDO power conversion circuit (82), the motor driving protection circuit (83), the battery voltage detection circuit (84) and the heater control circuit (85) are respectively and electrically connected with the storage battery (32),
the battery charging circuit (81), the temperature detection circuit (86) and the main control circuit (87) are respectively and electrically connected with the LDO power supply conversion circuit (82),
the battery charging circuit (81), the motor driving protection circuit (83), the battery voltage detection circuit (84), the heater control circuit (85) and the temperature detection circuit (86) are respectively and electrically connected with the main control circuit (87),
the motor drive protection circuit (83) is electrically connected to the motor (41),
the heater control circuit (85) is electrically connected to the heater (54),
the temperature detection circuit (86) is electrically connected to the temperature sensor (55).
8. The hot melt adhesive gun according to claim 7, wherein the battery charging circuit (81) comprises a TYPE-C interface J1, a capacitor C3, a resistor R11, an N-channel enhanced MOS transistor Q7 of TYPE DTS3402, a resistor R7, a resistor R8, a resistor R9, a power chip U12 of TYPE TCS4060, a resistor R10, a capacitor C4, a capacitor C5, a battery interface J3, a resistor R17, a resistor R18;
the B1 pin and the A12 pin of the TYPE-C interface J1 are grounded;
the 4 pins of the power chip U12 are connected with the A4 pin, the B9 pin, the B4 pin and the A9 pin of the TYPE-C interface J1, the 4 pins are grounded through a capacitor C3, the 4 pins are connected with the 1 pin through a resistor R7, the 1 pin is grounded through the resistor R8 and the resistor R9 in sequence, the 2 pin is grounded, the 5 pin is grounded through the resistor R10, and the 3 pins are grounded through the capacitor C4 and the capacitor C5 respectively;
the G pole of the MOS transistor Q7 is connected between the resistor R8 and the resistor R9, the D pole is connected with the output end of the LDO power supply conversion circuit (82) through the resistor R11, the D pole is connected with the battery charging state monitoring end of the main control circuit (87), and the S pole is grounded;
a4 pin, B9 pin, B4 pin and A9 pin of the TYPE-C interface J1 are sequentially grounded through the resistor R17 and the resistor R18, and the connection end of the resistor R17 and the resistor R18 is connected with the external power supply detection end of the main control circuit (87);
the pin 1 of the battery interface J3 is connected with the pin 3 of the power chip U12 and with the positive pole of the storage battery (32), and the pin 2 is connected with the ground and with the negative pole of the storage battery (32).
9. The hot melt adhesive gun according to claim 7, wherein the LDO power conversion circuit (82) comprises a power conversion chip U2 of type XC6206P302MR, a capacitor C6, a capacitor C7, a capacitor C8;
and the pin 3 of the power conversion chip U2 is grounded through the capacitor C6 and the capacitor C7 respectively, the pin 3 is connected with the anode of the storage battery (32), the pin 1 is grounded, the pin 2 is grounded through the capacitor C8, and the pin 2 is used as the output end of the LDO power conversion circuit (82).
10. The hot melt adhesive gun according to claim 7, wherein the motor driving protection circuit (83) comprises a motor driving chip U3 of type HT7K1201, a resistor R1, a resistor R2, a capacitor C11;
the 5 feet of the motor driving chip U3 are connected with the anode of the storage battery (32), the 4 feet and the 3 feet are respectively connected with the first output control end of the direct current motor of the main control circuit (87) and the second output control end of the direct current motor, the 4 feet and the 3 feet are respectively connected with the resistor R1, the resistor R2 and the 2 feet are grounded, the 1 foot and the 6 feet are connected with the capacitor C11, and the 1 foot and the 6 feet are respectively connected with the two poles of the motor (41).
11. The hot melt glue gun according to claim 7, wherein said battery voltage detection circuit (84) includes a resistor R14, a resistor R15;
the positive electrode of the storage battery (32) is grounded through the resistor R14 and the resistor R15 in sequence,
the connection end of the resistor R14 and the resistor R15 is connected with the battery voltage detection end of the main control circuit (87).
12. The hot melt glue gun according to claim 7, wherein said heater control circuit (85) comprises N-channel enhancement MOS transistor Q8, resistor R12, resistor R13, model VS 36101D;
the S pole of the MOS transistor Q8 is grounded through the resistor R12, and the G pole is connected with the heater control end of the main control circuit (87) through the resistor R13;
the positive electrode of the heater (54) is connected with the positive electrode of the storage battery (32), and the negative electrode is connected with the D electrode of the MOS tube Q8.
13. The hot melt glue gun according to claim 7, wherein said temperature detection circuit (86) comprises a resistor R16;
the NTC end of the temperature sensor (55) is connected with the output end of the LDO power supply conversion circuit (82) through the resistor R16, the NTC end is connected with the temperature detection end of the main control circuit (87), and the GND end is grounded.
14. The hot melt adhesive gun according to claim 7, wherein the main control circuit comprises a single chip microcomputer U1 with model number HT66F018, a capacitor C2, a capacitor C1, a resistor R21, a capacitor C9, a light emitting diode LED1, a light emitting diode LED2, a resistor R19, a resistor R20, a switch KEY1 and a switch KEY 2;
the 1 pin of the single chip microcomputer U1 is grounded,
pin 2 is connected with the cathode of the light emitting diode LED1 through the resistor R19,
the pin 3 is connected with the cathode of the light-emitting diode LED2 through the resistor R20,
the 4 pins are used as the battery charging state monitoring terminal of the main control circuit (87) and are connected with the battery charging circuit (81),
pin 6 is grounded as a motor switch control pin through the switch KEY1,
pin 8 is connected to ground as a power switch control pin through the switch KEY2,
the pin 9 is used as the control end of the heater of the main control circuit (87) and is connected with the heater control circuit (85),
the 10 pin is taken as the battery voltage detection end of the main control circuit (87) and is connected with the battery voltage detection circuit (84), the 11 pin is grounded through the resistor R21 and the capacitor C9 in sequence,
pin 11 is connected with the output end of the LDO power supply conversion circuit (82) through the resistor R21,
the 12 pins are used as the external power supply detection end of the main control circuit (87) to be connected with the battery charging circuit (81),
the pin 13 is used as the temperature detection end of the main control circuit (87) and is connected with the temperature detection circuit (86),
the 14 pin and the 15 pin are respectively used as a second output control end of the direct current motor of the main control circuit (87), the first output control end of the direct current motor is connected with the motor drive protection circuit (83),
the pin 16 is connected with the output end of the LDO power supply conversion circuit (82), and the pin 16 is grounded through the capacitor C2 and the capacitor C1 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851393.2A CN111905986A (en) | 2020-08-21 | 2020-08-21 | Hot melt glue gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851393.2A CN111905986A (en) | 2020-08-21 | 2020-08-21 | Hot melt glue gun |
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| Publication Number | Publication Date |
|---|---|
| CN111905986A true CN111905986A (en) | 2020-11-10 |
Family
ID=73279737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010851393.2A Pending CN111905986A (en) | 2020-08-21 | 2020-08-21 | Hot melt glue gun |
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| CN (1) | CN111905986A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210515A (en) * | 2021-12-20 | 2022-03-22 | 苏州小易科技有限公司 | Wireless lithium battery mini hot melt adhesive pen |
| WO2023001322A1 (en) * | 2021-07-19 | 2023-01-26 | 浙江齐享科技有限公司 | Glue gun |
-
2020
- 2020-08-21 CN CN202010851393.2A patent/CN111905986A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023001322A1 (en) * | 2021-07-19 | 2023-01-26 | 浙江齐享科技有限公司 | Glue gun |
| CN114210515A (en) * | 2021-12-20 | 2022-03-22 | 苏州小易科技有限公司 | Wireless lithium battery mini hot melt adhesive pen |
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