WO2020052076A1 - 电动胶枪及其控制方法 - Google Patents

电动胶枪及其控制方法 Download PDF

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Publication number
WO2020052076A1
WO2020052076A1 PCT/CN2018/117132 CN2018117132W WO2020052076A1 WO 2020052076 A1 WO2020052076 A1 WO 2020052076A1 CN 2018117132 W CN2018117132 W CN 2018117132W WO 2020052076 A1 WO2020052076 A1 WO 2020052076A1
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WO
WIPO (PCT)
Prior art keywords
glue gun
electric glue
motor
controller
electric
Prior art date
Application number
PCT/CN2018/117132
Other languages
English (en)
French (fr)
Inventor
任宇飞
付祥青
Original Assignee
南京德朔实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Priority to CN201880011661.0A priority Critical patent/CN110446559B/zh
Publication of WO2020052076A1 publication Critical patent/WO2020052076A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00Hand 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
    • B05C17/005Hand 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
    • B05C17/01Hand 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

Definitions

  • the present disclosure relates to an electric glue gun and a control method thereof.
  • Electric glue gun is a tool that can automatically glue or squeeze glue. It is widely used in building decoration, electronic appliances, automobile parts and other industries. Compared with the manual glue gun, the electric glue gun in the prior art has a high degree of automation and is relatively labor-saving. However, the existing electric glue gun has at least one defect. When the user releases the trigger to stop the glue work, the glue still continues to flow out or seep out of the nozzle of the glue gun, resulting in waste of the glue, and nozzle dirt, and additional time for cleaning the glue.
  • an object of the present disclosure is to provide an electric glue gun and a control method thereof that can prevent the gel from continuing to leak out of the nozzle after the motor stops driving.
  • An electric glue gun includes: a housing; a motor supported by the housing; a bracket extending from the housing, the bracket used to support a plastic bottle; a pushing mechanism supported by the housing and connected to the housing; A motor driven by the motor to squeeze out the gel in the plastic bottle; the push rod mechanism includes a push rod, the push rod is movable in a first direction and a second direction; an operating mechanism is supported by the housing And can be moved in at least one direction, the operating mechanism can be operated, and at least includes an operating state to stop driving the motor; a detecting section for detecting a load working event of the electric glue gun; a controller, and all The motor is connected to the operating mechanism, and the controller is configured to determine whether a load working event occurs in the electric glue gun according to a detection result of the detecting unit; When the operating mechanism is in the operating state in which the motor is stopped driving, the motor is controlled to reverse so that the push rod is retracted by a predetermined distance.
  • controller is configured to control the motor to prevent the ejection of the electric glue gun when a load working event does not occur, and when the operating mechanism is in the operating state in which the motor stops driving. go back.
  • the detection section is a detection circuit, and the detection circuit is independent of the controller
  • controller includes the detection section.
  • controller is further configured to brake the motor before the motor is reversed.
  • the detection unit includes a current detection circuit for detecting a current flowing to the motor, and an output end thereof is connected to the controller; the controller is further configured to combine the detection result of the current detection circuit with The preset current threshold is compared, and it is determined whether a load working event occurs in the electric glue gun according to the comparison result.
  • the controller determines that a load working event occurs in the electric glue gun.
  • the detection unit includes a pressure detection device for detecting the pressure in the plastic bottle, and an output end thereof is connected to the controller; the controller is configured to combine the detection result of the pressure detection device with the The preset pressure threshold is compared, and it is determined whether a load working event occurs in the electric glue gun according to the comparison result.
  • the controller determines that a load working event occurs in the electric glue gun.
  • the electric glue gun further includes a load working time determining unit for determining the load working time of the electric glue gun; and the controller is configured to adjust the position of the push rod according to the load working time of the electric glue gun. Back off distance.
  • the load working time of the electric glue gun has a positive correlation with the retreat distance of the push rod.
  • the electric glue gun has a speed adjustment mode
  • the controller is configured to control the motor to output different rotation speeds according to an operation amount of the operation mechanism when the electric glue gun is in the speed adjustment mode.
  • the electric glue gun also has a constant speed mode; the controller is configured to control the motor to output a fixed speed when the electric glue gun is in the constant speed mode.
  • the electric glue gun also has a jog mode, and the controller is configured to control the motor to run a second preset time every first preset time interval when the electric glue gun is in the jog mode. Set the duration.
  • the electric glue gun further includes: a touch switch, which is operatively triggered to switch the electric glue gun between the speed adjustment mode, the constant speed mode, and the jog mode.
  • the electric glue gun further includes a gearshift switch, and the gearshift switch is provided with multiple gear positions, and the motor has different maximum rotation speeds under the multiple gear positions.
  • the electric glue gun further includes a memory, and the memory is configured to store at least a state before the electric glue gun is powered off.
  • controller is further configured to: obtain a state before the electric glue gun is powered off; and control the motor to operate according to the state before the electric glue gun is powered off.
  • the state before the electric glue gun is powered off includes a motor speed and a speed mode
  • the speed mode includes a speed adjustment mode, a constant speed mode, or a jog mode.
  • a control method for an electric glue gun as described above comprising: obtaining a detection result of the detection section; determining whether the electric glue gun has a load working event according to the detection result of the detection section; Operating state; judging whether the operating mechanism is in an operating state to stop driving the motor according to the state of the operating mechanism; determining whether a load working event occurs in the electric glue gun and stopping the motor when the operating mechanism is in operation In the driving operation state, the motor is controlled to reverse so that the push rod is retracted by a predetermined distance.
  • Another method for controlling an electric glue gun as described above includes: obtaining a current flowing to the motor; and determining that a load working event occurs in the electric glue gun when the current flowing to the motor is greater than or equal to a preset current threshold. Obtaining the operating state of the operating mechanism; judging whether the operating mechanism is in an operating state that stops driving the motor according to the state of the operating mechanism; determining whether a load working event occurs in the electric glue gun and in the When the operating mechanism is in an operating state to stop driving of the motor, the motor is controlled to reverse so that the push rod is retracted by a predetermined distance.
  • Still another control method of the electric glue gun as described above comprising: acquiring and detecting a pressure in the plastic bottle;
  • control method further includes obtaining a load working time of the electric glue gun, and the predetermined distance of the push rod backing off has a positive correlation with the load working time of the electric glue gun.
  • Another electric glue gun includes: a housing; a motor supported by the housing; a pushing mechanism supported by the housing and connected to the motor, the pushing mechanism is used for installing a plastic bottle and extruding a gel; detecting A unit for detecting a load working event of the electric glue gun; a controller connected to the motor, the controller being configured to determine whether the electric glue gun has a load operation according to a detection result of the detecting unit; An event; after determining that a load working event has occurred in the electric glue gun and after the motor stops driving, controlling the motor to reverse to cause the pushing mechanism to retract a predetermined distance.
  • the detection section is a detection circuit independent of the controller or the controller includes the detection section.
  • the detection unit includes a current detection circuit for detecting a current flowing to the motor, and an output end thereof is connected to the controller; the controller is further configured to: detect a result of the current detection circuit Compare with a preset current threshold, and determine whether a load working event occurs in the electric glue gun according to the comparison result; when the current detection value of the current detection circuit is greater than or equal to a preset current threshold, the controller judges A load working event occurs in the electric glue gun.
  • the detection unit includes a pressure detection device for detecting the pressure in the plastic bottle, and an output end thereof is connected to the controller; the controller is configured to: detect a result of the pressure detection device Compare with a preset pressure threshold, and determine whether a load working event occurs in the electric glue gun according to the comparison result; when the pressure detection value of the pressure detection device is greater than or equal to a preset pressure threshold, the controller judges A load working event occurs in the electric glue gun.
  • the electric glue gun further includes a load working time determining unit for determining the load working time of the electric glue gun; and the controller is configured to adjust the pushing mechanism of the ejection mechanism according to the load working time of the electric glue gun. Back off distance.
  • the load working time of the electric glue gun has a positive correlation with the retracting distance of the pushing mechanism.
  • the electric glue gun has a speed adjustment mode
  • the controller is configured to control the motor to output different rotation speeds according to an operation amount of the operation mechanism when the electric glue gun is in the speed adjustment mode.
  • the electric glue gun has a speed regulating mode and / or a fixed speed mode; and the controller is configured to control the control unit according to an operation amount of the operating mechanism when the electric glue gun is in the speed regulating mode.
  • the motor outputs different speeds; the controller is further configured to control the motor to output a fixed speed when the electric glue gun is in the constant speed mode.
  • the electric glue gun has a speed adjustment mode and / or a fixed speed mode and / or a jog mode
  • the controller is configured to: when the electric glue gun is in the speed adjustment mode, according to the The operation amount of the operating mechanism controls the motor to output different speeds; when the electric glue gun is in the constant speed mode, the motor is controlled to output a fixed speed; when the electric glue gun is in the jog mode, control The motor runs a second preset duration every first preset duration.
  • the electric glue gun further includes a touch switch, and the touch switch is operable to switch the electric glue gun to the speed adjustment mode and / or the fixed speed mode and / or the jog mode.
  • a control method for an electric glue gun as described above comprising: obtaining a detection result of the detection section; determining whether the electric glue gun has a load working event according to the detection result of the detection section; and determining the electric glue After a load working event occurs on the gun and the motor stops driving, the motor is controlled to reverse so that the ejection mechanism is retracted by a predetermined distance.
  • Another method for controlling an electric glue gun as described above includes: obtaining a current flowing to the motor; and determining that a load working event occurs in the electric glue gun when the current flowing to the motor is greater than or equal to a preset current threshold. ; After determining that a load working event has occurred in the electric glue gun and stopping the driving of the motor, controlling the motor to reverse so that the pushing mechanism retracts a predetermined distance.
  • Another method for controlling the electric glue gun as described above includes: acquiring and detecting the pressure in the plastic bottle; and determining that the electric glue gun is loaded when the pressure in the plastic bottle is greater than or equal to a preset pressure. A work event; after determining that a load work event has occurred in the electric glue gun and controlling the motor to stop driving, the motor is controlled to reverse to cause the pushing mechanism to retract a predetermined distance.
  • control method further includes obtaining a load working time of the electric glue gun, and the predetermined distance for the pushing-out mechanism to retract is positively related to the load working time of the electric glue gun.
  • Another electric glue gun includes: a housing; a prime mover supported by the housing; and a pushing mechanism supported by the housing and connected to the prime mover.
  • the pushing mechanism is used for installing a plastic bottle and extruding a gel.
  • a detecting unit for detecting a load working event of the electric glue gun; a controller connected to the prime mover, the controller being configured to determine whether the electric glue gun is based on a detection result of the detecting unit A load work event occurs; after determining that the electric glue gun has a load work event and after the prime mover stops driving, the prime mover is controlled to cause the pushing mechanism to retract a predetermined distance.
  • the detection section is a detection circuit independent of the controller or the controller includes the detection section.
  • the detection unit includes a current detection circuit for detecting a current flowing to the prime mover, and an output end thereof is connected to the controller; the controller is further configured to: detect the current detection circuit The result is compared with a preset current threshold, and whether a load working event occurs in the electric glue gun according to the comparison result; when the current detection value of the current detection circuit is greater than or equal to a preset current threshold, the controller It is determined that a load working event occurs in the electric glue gun.
  • the detection unit includes a pressure detection device for detecting the pressure in the plastic bottle, and an output end thereof is connected to the controller; the controller is configured to: detect a result of the pressure detection device Compare with a preset pressure threshold, and determine whether a load working event occurs in the electric glue gun according to the comparison result; when the pressure detection value of the pressure detection device is greater than or equal to a preset pressure threshold, the controller judges A load working event occurs in the electric glue gun.
  • the electric glue gun further includes a load working time determining unit for determining the load working time of the electric glue gun; and the controller is configured to adjust the pushing mechanism of the ejection mechanism according to the load working time of the electric glue gun. Back off distance.
  • the load working time of the electric glue gun has a positive correlation with the retracting distance of the pushing mechanism.
  • the benefit of the present disclosure is that after the electric glue gun stops driving, the motor reverses a preset length of time, so that the pushing mechanism retracts a certain distance to prevent the glue from continuing to flow or leak out of the glue gun after the electric glue gun stops dispensing.
  • the electric glue gun of the present disclosure can effectively prevent the glue from overflowing after stopping the glue; further, by detecting whether a load work event has occurred in the electric glue gun (that is, whether glue work has been performed) ), Only when the load working event is detected, the pusher is retracted a certain distance so that the colloid will not overflow, and when no glue is detected, the pusher is not retracted, reducing unnecessary operations, and easy to operate. It also saves energy.
  • FIG. 1 is a perspective view of a state in which an electric glue gun is installed with a plastic bottle
  • FIG. 2 is a perspective view of the electric glue gun of FIG. 1 without a plastic bottle installed;
  • FIG. 3 is a plan view of the electric glue gun of FIG. 2;
  • FIG. 4 is a partial cross-sectional view of the electric glue gun of FIG. 2;
  • FIG. 5 is a partial enlarged view of the electric glue gun at A in FIG. 4; FIG.
  • FIG. 6 is a circuit schematic diagram of an electric glue gun according to a first embodiment
  • FIG. 7 is a flowchart of a method for controlling an electric glue gun according to a first embodiment
  • FIG. 8 is a circuit schematic diagram of an electric glue gun according to a second embodiment
  • FIG. 9 is a flowchart of a control method of an electric glue gun according to a second embodiment
  • FIG. 10 is a flowchart of a method for controlling an electric glue gun according to a third embodiment
  • FIG. 11 is a flowchart of a method for controlling an electric glue gun according to a fourth embodiment
  • FIG. 12 is a flowchart of a control method of an electric glue gun according to a fifth embodiment
  • FIG. 13 is a flowchart of a method for controlling an electric glue gun according to a sixth embodiment.
  • the electric glue gun 100 mainly includes: a prime mover, a housing 12, and a pushing mechanism 14.
  • a first accommodating cavity 121 is formed inside the housing 12, and the prime mover is disposed in the first accommodating cavity 121 of the housing 12.
  • the housing 12 is further formed with a handle 122 for an operator to hold.
  • the prime mover is a motor 11, and the motor includes a motor shaft 111 for driving the output shaft 145 to swing about the central axis.
  • the electric glue gun 100 further includes a speed changing device 13.
  • the speed changing device 13 is disposed in the first accommodation cavity 121 of the housing 12, and is located between the motor shaft 111 and the output shaft 145 of the motor 11. The rotation is transmitted to the output shaft 145.
  • the specific structure of the speed change device 13 is already well known in the art, and will not be described in detail.
  • the pushing mechanism 14 includes a second receiving cavity 141, a push rod 142, a transmission mechanism 143, and a locking mechanism 144.
  • the transmission mechanism 143 is connected to the output shaft 145 and is used to drive the push rod 142 to slide in the first linear direction 101 so as to extrude the colloid.
  • the transmission mechanism 143 is formed or connected with a push rod rotating member, the output shaft 145 drives the push rod rotating member to rotate, and the push rod 142 passes through the push rod rotating member and is driven with the rotation of the push rod 142 rotating member.
  • the second receiving cavity 141 is used for installing and fixing the plastic bottle 15, and the plastic bottle 15 contains a gel. When the push rod 142 slides to the bottom of the plastic bottle 15 and generates a squeezing force, the gel is squeezed out of the plastic bottle 15.
  • the locking mechanism 144 is connected between the push rod 142 and the transmission mechanism 143.
  • the push rod 142 can only move forward under the driving of the transmission mechanism 143;
  • the locking structure is unlocked, the push rod 142 can slide freely in the front-rear direction.
  • the setting of the locking mechanism 144 facilitates the user to easily replace the plastic bottle 15 and increases work continuity.
  • a head 142a is also provided on the front side of the push rod 142.
  • the head 142a may be a circle connected to one end of the push rod 142 or formed at one end of the push rod 142.
  • the tray may also have other shapes or structures that are convenient for squeezing the plastic bottle 15.
  • the push rod 142 is specifically a screw rod with external threads.
  • the screw rod is also formed with a flat position to prevent itself from rotating during the sliding process, that is, the external thread on the screw rod is discontinuous.
  • the body has a smooth plane along the first straight line direction 101, which interrupts the continuous structure of the external thread, so that when it is driven by the rotating member of the push rod 142, it only slides without rotating.
  • the electric glue gun 100 further includes an operation mechanism supported by the housing 12 and movable in at least one direction.
  • the operation mechanism can be operated and at least includes an operation state for stopping the motor.
  • the operating mechanism is a trigger 16 that can be pressed and released, which can start the motor when pressed to a certain stroke, and stop the motor from driving when the certain stroke is released.
  • the motor stop driving means that the controller stops outputting a signal to make the motor run. At this time, the motor may still be rotating due to inertia, but its speed gradually decreases until it finally stops rotating.
  • the electric glue gun 100 has a speed adjustment mode.
  • the speed adjustment mode the user can arbitrarily adjust the rotation speed of the motor 11 of the electric glue gun 100 according to needs, so that the electric glue gun 100 outputs different power.
  • the electric glue gun 100 is formed or connected with a speed adjustment device for adjusting the colloid extrusion rate, and the speed adjustment device is used to implement a speed adjustment mode.
  • the speed governing device includes a speed governor 17 which is connected in association with the trigger 16.
  • the trigger 16 is mounted on one side of the handle 122 and can rotate freely about a rotation axis within a range of an included angle between the pushing mechanism 14 and the handle 122.
  • the trigger 16 includes a grip portion 161 and a connection portion 162.
  • the holding portion 161 can be held by a user to start the electric glue gun 100;
  • the connecting portion 162 forms a connecting hole 162a, which is used to rotate and connect the trigger 16 to the rotating shaft.
  • the connecting portion 162 is further connected or formed with a first adjusting portion 162 b, and the governor 17 is connected to the first adjusting portion 162 b in a position close to the first adjusting portion 162 b of the electric glue gun 100.
  • the first adjusting portion 162b is a circular arc, and the circular arc is centered on the axis of the connecting shaft.
  • the speed governor 17 is specifically a rotary switch in structure. The user can control the output power of the electric glue gun 100 by adjusting the rotation angle of the speed governor 17.
  • the governor 17 is formed with a second adjusting portion 171.
  • the second adjusting portion 171 is specifically a circle of teeth formed around the outer surface of the governor 17. A plurality of teeth are evenly distributed on the first adjusting portion 162b.
  • the external teeth on 17 mesh.
  • the speed governor 17 is connected to the trigger 16.
  • the first adjusting portion 162b drives the rotation switch to rotate in the first direction.
  • the greater the output power of the gun 100 the faster the gel is squeezed out.
  • the output power of the electric glue gun 100 is the largest. It can be understood that the rotation angle of the trigger 16 and the electric glue
  • the output power of the gun 100 is in a positive linear relationship, that is, the larger the rotation angle of the trigger 16 is, the greater the output power of the electric glue gun 100 is.
  • the included angle between the trigger 16 and the handle 122 is 45 °, which can not only achieve user's more comfortable operation, but also enable the trigger 16 to adjust the output power of the electric glue gun 100 at a larger angle. It can be understood that the included angle between the trigger 16 and the handle 122 can also be set to other values, which is not limited herein.
  • the trigger mechanism is provided to realize different output speeds of the motor 11, so that the electric glue gun 100 can output different power, thereby meeting the requirements of different working conditions.
  • the electric glue gun 100 is further formed or connected with a response part 163 that allows a user to sense the output power.
  • the reaction portion 163 is an elastic member 163 a connected to the handle 122 and the trigger 16.
  • the handle 122 is formed or connected with a protrusion that can be sleeved by the elastic member 163a
  • the holding portion 161 of the trigger 16 is formed with a receiving slot into which the elastic member 163a can be inserted.
  • the reaction unit 163 is not limited to the above implementation form, and any person who can make the user perceive the output power of the electric glue gun 100 through the reaction force falls within the protection scope of the present disclosure.
  • the electric glue gun 100 also has a constant speed mode.
  • the motor 11 can rotate at a fixed speed without relying on the amount of trigger of the trigger 16, so that it can be adjusted to a better speed, and Work at this preferred speed to ensure better working results.
  • the electric glue gun 100 further includes a tact switch 20 that is operatively triggered to switch the electric glue gun 100 between a speed adjustment mode and a fixed speed mode.
  • a tact switch 20 that is operatively triggered to switch the electric glue gun 100 between a speed adjustment mode and a fixed speed mode.
  • the touch switch 20 can be triggered when the motor 11 is at the fixed speed.
  • the controller 18 can obtain the current state of the electric glue gun 100 According to the signal of the motor speed, the motor 11 can be continuously operated at the speed according to the signal, so that the electric glue gun 100 outputs a constant power.
  • the speed adjustment function of the trigger 16 is disabled.
  • the touch switch 20 can be triggered again, so that the motor 11 works at the rotation speed corresponding to the hooking amount of the trigger 16.
  • the electric glue gun 100 enters the speed adjustment mode. If you need to continue working at the current speed after readjustment, you can trigger the touch switch 20 again, so that the motor 11 continues to run at the current speed, the speed adjustment function of the trigger 16 fails, and the electric glue gun 100 enters the fixed speed. Speed mode. In this way, by triggering the touch switch 20, the electric glue gun 100 is switched between the constant speed mode and the speed adjustment mode.
  • the electric glue gun 100 further includes a switch state detecting device (not shown) for detecting a state or a state change of the touch switch 20.
  • the states include a first state and a second state.
  • the tact switch 20 is in the first state, the electric glue gun 100 is in a speed adjustment mode, and when the tact switch 20 is in the second state.
  • the electric glue gun 100 is in a constant speed mode.
  • the tact switch 20 is changed, the electric glue gun 100 is switched from one speed mode to another speed mode, and the speed mode includes a speed adjustment mode and a fixed speed mode.
  • the rotation speed of the motor 11 is determined according to the trigger amount of the trigger; in the constant speed mode, the motor 11 can maintain a fixed speed in a gear position, which can prevent the user from pressing and holding the trigger all the time, which is difficult and inconvenient, and may The user's hand shakes and causes the speed to be unstable.
  • the amount of glue is uniform. In some places with aesthetic requirements, for example, when sealing the glass of doors and windows, especially at the corners, no colloids can be pushed, which affects the appearance.
  • the electric glue gun of the present disclosure can meet the above requirements.
  • the electric glue gun further includes a jog mode, and the touch switch 20 is operatively triggered to switch the electric glue gun 100 between a speed adjustment mode, a constant speed mode, and a jog mode.
  • the motor 11 is controlled to output a rotation speed at a preset interval every interval, and the rotation speed is a fixed rotation speed.
  • the preset duration is selectively set by the user to meet the work requirements.
  • the jog mode of the electric glue gun 100 is used. In the jog mode, the glue gun 100 produces glue at predetermined intervals, and the intervals are printed on the advertisement leaflets or billboards.
  • the tact switch 20 has a third state.
  • the electric glue gun 100 is in a jog mode.
  • the tact switch 20 may only include a state where the tact switch is released and restored to the original state, and the speed mode of the electric glue gun is determined according to the number of times the tact switch is pressed and / or restored to the original state.
  • 1 time corresponds to the speed regulation mode
  • 2 times corresponds to the fixed mode
  • 3 times corresponds to the jog mode
  • 4 times corresponds to the speed regulation mode
  • 5 times corresponds to the fixed mode
  • 6 times corresponds to the jog mode
  • 7 corresponds to the speed regulation mode .. ....,And so on.
  • the electric glue gun 100 also includes a memory with a storage function, and the stored data will not be lost after the power is turned off.
  • the memory is disposed in the housing 12. In some specific implementation manners, the memory is electrically connected to the controller 61, and a memory located therein may also be integrated in the controller 61.
  • the memory can store the state of the electric glue gun 100 before the power is cut off.
  • the state includes the speed mode of the electric glue gun 100 before the power off and the rotation speed of the motor 11.
  • the speed mode includes the speed adjustment mode, the fixed speed Mode, jog mode.
  • the state of the electric glue gun 100 before power failure can be recorded, and when the electric glue gun 100 tool is restarted after the power is turned off, the electric glue gun 100 still runs in the state before the power failure.
  • the motor 11 runs at the same speed after the speed is adjusted, which can ensure a more consistent and better working effect of the electric glue gun 100, and can also prevent the electric glue gun 100 from being powered off. Trouble with speed again.
  • the electric glue gun 100 is further provided with a control mechanism for controlling the upper limit of the output power of the electric glue gun 100.
  • the control mechanism includes a shift switch 19, and the shift switch 19 is provided with multiple gears.
  • the motor 11 has different maximum speeds in the multiple gears.
  • the gearshift switch 19 is set with 6 gears, the first gear corresponds to the motor speed 0-4000rpm, the second gear corresponds to the motor speed 0-8000rpm ... the sixth gear corresponds to the motor speed 0-24000rpm.
  • the trigger is at At the same position, the corresponding motor speed is also different.
  • the shift switch 19 is a pull button, and the output power range of the electric glue gun 100 is adjusted by adjusting the pull button.
  • the pull button can be provided with multiple gears, which can realize the variable speed adjustment of the electric glue gun 100 in multiple gears, and each gear can set the maximum speed of the motor 11 to limit the electric glue gun 100 in various gears.
  • the maximum output power is lowered to prevent the operator from hooking the trigger 16 to an excessively large amount of output power or an undesirably high output power or speed.
  • the safety is good, and the operator is provided with a better user experience.
  • the setting of multiple gears corresponds to different speed ranges, so that users need to choose different speed ranges according to different needs, which is convenient for operation.
  • the electric glue gun 100 further includes a power supply source for supplying electric power to the electric glue gun 100.
  • the electric glue gun 100 is powered by a DC power supply. More specifically, the electric glue gun 100 is powered by a battery pack 10, and the battery pack 10 cooperates with a corresponding power circuit, such as a DC-DC conversion chip, for the motor 11 And circuit components on the board.
  • a power supply is not limited to the scenario in which the battery pack 10 is used, and the power can be supplied to each circuit element through the commercial power, AC power, and corresponding rectification, filtering, and voltage regulation circuits.
  • the electric glue gun 100 is powered by a battery pack 10, and the battery pack 10 is detachably mounted to the electric glue gun 100.
  • the battery pack 10 includes a case and a battery cell.
  • the battery cell is housed in a case for storing energy, which can be repeatedly charged and discharged.
  • the casing is formed with a connection interface for connecting and mating with the battery pack joint of the electric glue gun 100.
  • the operation of the electric glue gun 100 also depends on the circuit system.
  • the circuit system includes circuit components.
  • the circuit components are disposed on the circuit board 18, and the circuit board 18 is located in the housing 12.
  • the electric glue gun 100 as a first embodiment includes a controller 61, a power circuit 62, a governor 17, a current detection circuit 66, a load working time determination unit 67, and a battery pack 10.
  • the motor 11 The battery pack 10 is detachably mounted to the electric glue gun 100.
  • the controller 61 is configured to control an operation process of the electric glue gun 100.
  • the controller 61 includes a single-chip microcomputer or a microcontroller (MCU), an ARM chip (reduced instruction set, reduced instruction set computing) microprocessor, an advanced RISC machine, a DSP chip (general-purpose digital Signal processor).
  • the power supply circuit 62 is electrically connected to the controller 61, and is used to convert the electric power from the power supply into electric energy that can be used by the controller 31 and other circuit components.
  • the power supply source is the battery pack 10, and therefore, the power supply circuit 62 may include a DC-DC conversion chip.
  • the power supply is not limited to the scenario where the battery pack 10 is used.
  • the power can also be supplied to each circuit element through the mains and AC power, and the corresponding rectification, filtering, and voltage regulating circuits.
  • the circuit includes rectification, filtering, and voltage regulation circuits.
  • the electric glue gun 100 further includes a current switch 64 connected to the trigger 16 in series.
  • the current switch 64 is connected in series on the main circuit to allow or prohibit the current of the battery pack 10 from flowing to the electric glue gun 100.
  • One end of the current switch 64 is used to be electrically connected to the power terminal of the battery pack 10, and the other end is connected to the power circuit 62.
  • the current switch 64 is not turned on, the power supply circuit 62 is powered off, the power supply circuit 62 cannot supply power to the controller 61, the controller 61 does not work, and the electric glue gun 100 does not work; when the current switch 64 is turned on, the power supply circuit 62 has to After the controller 61 obtains power from the power supply circuit 33, it controls the motor 11 to work.
  • the current switch 64 when the trigger 16 is pressed to the first position, the current switch 64 is turned on and the motor 11 is started; when the current switch 64 is released to the second position, the motor 11 stops driving.
  • the current switch 64 is not provided in association with the trigger 16, but a trigger state detection device (not shown) is provided to detect the state of the trigger 16.
  • the trigger state detection device is electrically connected to the controller 61 to control
  • the trigger 61 controls the on / off of the current switch according to the state of the trigger detected by the trigger state detection device.
  • the controller 61 controls the current switch 64 to be turned on.
  • the controller 61 controls the current switch 64 to be turned off or not to be turned off.
  • the governor 17 is associated with the trigger 16 and is electrically connected to the controller 61.
  • the governor 17 When the trigger 16 is pressed for different strokes, the governor 17 is in a different state correspondingly, and the controller 61 controls the motor 11 to output different rotation speeds according to the different states of the governor 17.
  • the speed governor 17 includes a sliding rheostat, and the trigger 16 is connected to the mobile terminal of the sliding rheostat. When the trigger 16 is pressed for different strokes, the resistance value of the sliding rheostat connected to the circuit changes.
  • the changed resistance value can be converted into a voltage signal through a related circuit, so that the controller 61 can obtain the rotation speed of the motor 11 desired by the operator according to the voltage signal of the governor 17 and a pre-stored voltage-tachometer or voltage-speed formula.
  • the control signal output from the controller 61 controls the motor 11 to output the rotation speed desired by the operator.
  • the motor 11 is configured as a brushless motor.
  • the motor 11 may also be other motors, which is not limited herein.
  • the electric glue gun 100 further includes a driving circuit 63, and the driving circuit 63 is electrically connected to the controller 61 for controlling the operation of the motor 11.
  • the driving circuit 63 is electrically connected to the three-phase winding of the brushless motor to drive the rotor of the brushless motor.
  • the driving circuit 63 includes a switching element.
  • the driving circuit 63 shown in FIG. 6 includes switching elements VT1, VT2, VT3, VT4, VT5, and VT6.
  • the switching element VT1 and the switching element VT4 are connected to the first phase winding A, and the switching element VT3 and the switching element VT6 are connected to the second phase.
  • the winding B is connected, and the switching element VT5 and the switching element VT2 are connected to the third-phase winding C.
  • the switching elements VT1 to VT6 can be selected from field effect transistors and IGBT transistors.
  • the gate terminal of each switching element is electrically connected to the driving signal output terminal of the controller 61, and the drain or source of each switching element is electrically connected to the winding of the brushless motor 17.
  • the switching elements VT1-VT6 change the on state according to the driving signal output by the controller 61, thereby changing the voltage state of the battery pack 10 loaded on the windings of the brushless motor, and driving the brushless motor to operate.
  • This embodiment uses a brushless motor, which greatly reduces the size of the electric glue gun 100.
  • the structural complexity of the transmission mechanism 143 is greatly reduced, which further reduces
  • the space position occupied by the transmission mechanism 143 optimizes the overall size of the electric glue gun 100 as a whole, making the whole machine of the electric glue gun 100 lighter, more convenient for long-term operation by the user, and reducing the fatigue of the user's long-term operation.
  • the electric glue gun 100 of this embodiment When the controller 61 detects that the trigger is released, the control motor 11 is reversed for a certain period of time to make the push rod 142 move backward, which can effectively prevent the gel from overflowing after the trigger is released.
  • the control motor 11 When there is no gel in the electric glue gun 100 and it is running at no load (for example, in the case of cleaning the bottle), it is not necessary to retract the push rod 142 after the trigger is released. , Reduce unnecessary operations, simple operation can also save energy.
  • the electric glue gun 100 is further provided with a detecting section for detecting a load working event of the electric glue gun.
  • the output end of the detection section is electrically connected to the controller 61.
  • the controller 61 determines whether a load working event occurs in the electric glue gun according to the detection result of the detection section, determines whether a load working event occurs in the electric glue gun 100 and the operating mechanism is in
  • the control motor 11 is reversed so that the push rod is retracted by a predetermined distance so that the colloid will not overflow after stopping the glue application.
  • the operating mechanism is the trigger 16.
  • the corresponding trigger 16 is in a released state.
  • the detection unit may specifically be a current detection circuit 66 that detects whether the electric glue gun 100 is working under load by detecting a current flowing to the motor 11.
  • the current detection circuit 66 is electrically connected to the main circuit for detecting a current flowing to the windings of the motor 11.
  • the push rod 142 pushes the colloid to move, the push rod 142 will receive the reaction force of the colloid, the load of the motor 11 will be larger than that under no load, and the current at this time will be larger than the current under no load, so it can be detected by flowing to the motor.
  • a current of 11 is used to detect whether a load working event occurs in the electric glue gun 100.
  • the output terminal of the current detection circuit 66 is electrically connected to the controller 61.
  • the controller 61 determines whether a load working event occurs in the electric glue gun 100 according to the detection result of the current detection circuit 66, and determines whether the electric glue gun 100 has occurred. After a load working event and after the trigger 16 is released, the motor 11 is controlled to reverse a preset period of time.
  • the controller 61 compares the detected current value from the current detection circuit 66 with a preset current threshold, the preset current threshold corresponding to the inflection point of the current change, that is, the current when the load occurs. If the detection value is greater than the preset current threshold, it is determined that a load working event has occurred in the electric glue gun 100; otherwise, it is determined that no load working event has occurred in the electric glue gun 100. When the glue application time has not occurred, there is no need to control the motor 11 to reverse the push rod 142 Reverse.
  • the electric glue gun 100 further includes a trigger state detection device (not shown) for detecting whether the trigger 16 is in a pressed state or a released state.
  • the trigger state detection device is electrically connected to the controller 61 and sends the detection result to the control. ⁇ 61 ⁇ 61.
  • the controller 61 controls the motor 11 to control the motor 11 to reverse for a preset period of time.
  • the trigger state detection device may be a circuit composed of electronic components.
  • the trigger state detection device may be a trigger state detection circuit composed of a signal switch associated with the trigger 16.
  • the controller 61 determines the trigger state according to the state of the signal switch.
  • the state detection device may also be a trigger state detection circuit composed of a sliding rheostat associated with the trigger.
  • the controller 61 determines the trigger state according to a voltage signal converted from the resistance value of the sliding rheostat access circuit.
  • the trigger state detection device may also be A sensor that can sense the trigger status, such as a position sensor that detects where the trigger is located.
  • the trigger state detection device can also be shared with the above-mentioned speed governor 17. Since the speed governor 17 is connected to the trigger 16 and electrically connected to the controller 61, the speed governor 17 includes a sliding rheostat, and the trigger 16 The mobile terminal is connected. When the trigger 16 is pressed for different strokes, the resistance value of the sliding rheostat connected to the circuit changes.
  • the changed resistance value can be converted into different voltage signals by the related circuit.
  • the controller 61 is based on the voltage signal.
  • the state of the trigger 16 or the position of the trigger 16 can be determined. When the trigger is released or pressed, the voltage signal is different or the voltage signal changes differently. In this way, it is detected whether the trigger is in a pressed state or a released state.
  • the present disclosure also provides a control method of the electric glue gun 100.
  • the control method of the first embodiment of the electric glue gun 100 includes:
  • the motor is controlled to reverse so that the push rod is retracted by a predetermined distance.
  • the operating mechanism is the trigger 16. After the trigger 16 is released, the controller 61 stops outputting a signal to make the motor run, and the motor 11 stops driving.
  • the specific control method of the electric glue gun 100 is as follows:
  • S70 start electric glue gun
  • the current detection circuit 66 detects the current flowing to the motor in real time, and the controller 61 obtains the current flowing to the motor from the current detection circuit 66; at the same time, the trigger state detection device monitors the trigger state in real time, and the controller 61 detects the trigger state from the trigger state detection device.
  • the controller 61 compares the acquired motor current detection value with a preset current threshold to determine whether the current detection value is greater than or equal to the preset current threshold; the controller 61 determines the trigger 16 based on a detection signal of a trigger state detection device Whether it is in a released state, if it is judged that the current detection value is greater than or equal to a preset current threshold, it is judged that a load working event occurs in the electric glue gun 100; if it is judged that a load working event occurs in the electric glue gun 100 and the trigger is in a released state, go to step S73 , Otherwise go to step S71;
  • the controller 61 controls the motor 11 to reverse, and stops the motor from driving after reaching a preset time.
  • the preset duration may be a fixed value, which is preset by a user according to actual needs; the preset duration may also be a variable value. In this embodiment, the preset duration and the electric glue gun The working time of 100 load is determined, see below for details.
  • the detection unit may specifically be a pressure detection device 68, which detects a load operation event of the electric glue gun 100 by detecting the pressure in the plastic bottle 15.
  • the pressure detection device 68 is installed in, but not limited to, a plastic bottle.
  • the pressure detection device 68 may be a pressure sensor capable of sensing a change in pressure.
  • a pressure sensor may be installed at the front end of the push rod 142, which can sense whether the front end of the push rod 142 is in contact with the colloid and be pressured by the colloid.
  • the pressure detection device 68 can detect the pressure in the bottle to detect the electric glue. Whether the gun 100 is working.
  • the output end of the pressure detection device 68 is connected to the controller 61.
  • the controller 61 determines whether a load working event occurs in the electric glue gun 100 according to the detection result of the pressure detection device 68, and determines that the electric glue gun has a load working. After the event and after the trigger is released, the motor 11 is controlled to reverse the preset time.
  • the present disclosure also provides a control method of the second embodiment of the electric glue gun 100, including:
  • the motor is controlled to reverse so that the push rod is retracted by a predetermined distance.
  • the operating mechanism is the trigger 16. After the trigger 16 is released, the controller 61 stops outputting a signal to run the motor, and the motor 11 stops driving.
  • control method of the above-mentioned second embodiment of the electric glue gun 100 specifically includes content:
  • the pressure detecting device 68 detects the pressure in the plastic bottle 15 in real time.
  • the pressure detection device 68 is specifically a pressure sensor.
  • the pressure sensor is installed at the front end of the push rod 142. It can sense whether the front end of the push rod 142 is in contact with the colloid and receive the pressure of the colloid.
  • the controller 61 obtains the pressure of the pressure sensor from the pressure detection device 68. Detection value
  • the trigger state detection device monitors the trigger state in real time, and the controller 61 obtains the trigger state from the trigger state detection device.
  • S92 Determine whether the pressure detection value is greater than or equal to a preset pressure threshold and whether the trigger is in a released state;
  • the controller 61 compares the obtained pressure detection value with a preset pressure threshold to determine whether the current detection value is greater than or equal to the preset current threshold; the controller 61 determines whether the trigger 16 is based on a detection signal of a trigger state detection device In the released state, if it is judged that the pressure detection value is greater than or equal to the preset current threshold, it is judged that the electric glue gun 100 has a load working event; if it is judged that the electric glue gun 100 has a load working event and the trigger 16 is in the released state, go to Step S93, otherwise go to step S91.
  • the controller 61 controls the motor 11 to reverse, and stops the motor from driving after reaching a preset time.
  • the preset duration may be a fixed value, which is preset by a user according to actual needs; the preset duration may also be a variable value.
  • the preset duration is controlled by an electric glue gun 100 The working time of the load is determined, see below.
  • the detection unit may also detect whether the electric glue gun 100 is working under load according to the weight of the electric glue gun 100 under full load and no load. As long as other load detection devices capable of distinguishing the different conditions of the electric glue gun 100 from no-load and load are used to make the electric glue gun 100 retreat under different operating conditions or not, all fall within the protection scope of the present disclosure. .
  • the electric glue gun 100 further includes a load working time determining unit 67, configured to determine the load working time of the electric glue gun 100 (that is, the time during which the electric glue gun 100 is glued), and the controller 61 works according to the load.
  • the control motor 11 reverses the preset time.
  • the load working time of the electric glue gun 100 has a positive correlation with the preset time when the motor 11 is reversed. In this way, according to the load working time of the electric glue gun 100, the motor 11 reverses the time to dynamically adjust the reversing time of the push rod to different distances, and the distance of the push rod 142 is positively related to the load working time of the electric glue gun 100.
  • the push rod 142 is pushed back by a fixed distance, which may cause the glue rod 142 to fall back, and the glue may still drip, or the retracted distance is too long, which causes the push rod 142 or electric glue gun to loosen and push the rod 142 in time. Too many empty trips at the next boot, wasting time and energy.
  • an input terminal of the load working time determining unit 67 is electrically connected to the detection section, and an output terminal thereof is electrically connected to the controller 61.
  • the load operation time determination unit 67 determines the load operation time based on the detection result of the detection unit.
  • the load operation duration determination unit 67 determines the load operation duration according to a current change detected by the current detection circuit 66.
  • the load working duration determining unit 67 may specifically include a comparator and a timer or a counter.
  • the load working duration determining unit 67 obtains a current detection value of the current detection circuit 66, and the comparator of the load working duration determining unit 67 will The current detection value is compared with a preset current threshold value. When the current detection value is greater than or equal to the preset current threshold value, the timer or counter of the load working time determination unit 67 starts counting until the trigger is released to stop the timing.
  • the controller 61 obtains the load working time determined by the load working time determining unit 67, and determines a preset time of the motor reversal according to the load working time by a formula or a look-up table, and then controls the motor 11 to reverse the preset time .
  • the load operation duration determination unit 68 determines the load operation duration according to the pressure change detected by the pressure detection device 66.
  • the load working duration determining unit 67 may specifically include a comparator and a timer or a counter. The load working duration determining unit 67 obtains the pressure detection value of the pressure detecting device 68, and the comparator of the load working duration determining unit 67 will The aforementioned pressure detection value is compared with a preset pressure threshold value.
  • the timer or counter of the load working time determination unit 67 starts counting until the trigger 16 is released to stop Timing or counting, and the result of the timer or counter is sent to the controller 61 as the working time of the load.
  • the controller 61 obtains the load working duration 1 determined by the load working duration determining unit 67, and determines a preset duration of the motor reversal according to the load working duration through a formula or a look-up table, and then controls the motor 11 to reverse the preset duration.
  • the load working time determining unit 67 may be a separate module, or may be built in the controller 61, and use a comparator and a timer or a counter in the controller 61, which is not limited herein.
  • the controller 61 brakes the motor after the trigger 16 is released and before the motor 11 is reversed.
  • the braking method of the motor 11 may be a conventional braking method in the art. I won't go into details here.
  • a control method of a third embodiment of the electric glue gun 100 is as follows:
  • the current detection circuit 66 detects the current flowing to the motor in real time, and the controller 61 obtains the current flowing to the motor from the current detection circuit 66; at the same time, the trigger state detection device monitors the trigger state in real time, and the controller 61 detects the trigger state from the trigger state detection device.
  • S102 Determine whether the detected current value is greater than or equal to a preset current threshold and whether the trigger is in a released state;
  • the controller 61 compares the obtained current detection value with a preset current threshold to determine whether the current detection value is greater than or equal to the preset current threshold; the controller 61 determines whether the trigger 16 is based on a detection signal of a trigger state detection device In a released state. If it is determined that the current detection value is greater than or equal to the preset current threshold value, it is determined that a load working event has occurred in the electric glue gun 100; if it is determined that a load working event has occurred in the electric glue gun 100 and the trigger is released, go to step S103, otherwise go to step S101.
  • the load operation duration determination unit 67 determines the load operation duration based on the current change detected by the current detection circuit 66.
  • the load working duration determining unit 67 may specifically include a comparator and a timer or a counter.
  • the load working duration determining unit 67 obtains a current detection value of the current detection circuit 66, and when the current detection value is greater than or equal to a preset current threshold value At that time, the timer or counter of the load working time determination unit 67 starts counting until the trigger is released to stop the counting or counting, and the result of the timer or counter is sent to the controller 61 as the load working time.
  • the controller 61 acquires the load working duration determined by the load working duration determining unit 67.
  • S104 Determine the preset time for the motor to reverse.
  • the controller 61 determines, according to the working time of the load, a preset time of reversing the motor 11 through a formula or a look-up table.
  • the preset duration is positively related to the working duration of the load, that is, the longer the working duration of the load, the longer the preset duration of the motor reversal.
  • the reversal time of the motor 11 is dynamically adjusted, so that the retraction distance of the push rod 142 is positively related to the load working time of the electric glue gun 100, which can avoid the colloid overflow phenomenon or the push rod 142 retreating if the push rod 142 is insufficiently retracted. If the distance is too long, the push rod 142 or the glue gun becomes loose and the idle stroke of the push rod 142 is too much for the next boot, which wastes time and energy.
  • the controller 61 brakes the motor 11 after the trigger 16 is released and before the motor 11 is reversed.
  • the motor braking method may be a conventional braking method in the art, and is not limited herein.
  • the controller 61 controls the motor 11 to reverse, and stops the motor from driving after reaching a predetermined preset period of time for the motor to reverse.
  • control method of the fourth embodiment of the electric glue gun 100 is similar to the control method of the third embodiment of the electric glue gun 100 described above.
  • detection unit is a pressure detection device 68 instead of the pressure detection device 68.
  • Current detection circuit 66 The specific process is as follows:
  • the pressure detecting device 68 detects the pressure in the plastic bottle 15 in real time.
  • the pressure detection device 68 is specifically a pressure sensor.
  • the pressure sensor is installed at the front end of the push rod 142. It can sense whether the front end of the push rod 142 is in contact with the colloid and is pressured by the colloid.
  • the controller 61 obtains the pressure sensor from the pressure detection device 68 and detects that Pressure detection value;
  • the trigger state detection device monitors the trigger state in real time, and the controller 61 obtains the trigger state from the trigger state detection device.
  • S112 Determine whether the pressure detection value is greater than or equal to a preset pressure threshold and whether the trigger is in a released state;
  • the controller 61 compares the obtained pressure detection value with a preset pressure threshold to determine whether the current detection value is greater than or equal to the preset current threshold; the controller 61 determines whether the trigger 16 is based on a detection signal of a trigger state detection device In the released state, if it is judged that the pressure detection value is greater than or equal to the preset current threshold, it is judged that the electric glue gun 100 has a load working event; if it is judged that the electric glue gun 100 has a load working event and the trigger 16 is in the released state, go to Step S113, otherwise go to step S111.
  • the load operation duration determination unit 67 determines the load operation duration according to a current change detected by the current detection circuit 66.
  • the load working duration determining unit 67 may specifically include a comparator and a timer or a counter.
  • the load working duration determining unit 67 obtains a current detection value of the current detection circuit 66, and when the current detection value is greater than or equal to a preset current threshold value At that time, the timer or counter of the load working time determination unit 67 starts counting until the trigger is released to stop the counting or counting, and the result of the timer or counter is sent to the controller 61 as the load working time.
  • the controller 61 acquires the load working duration determined by the load working duration determining unit 67.
  • the controller 61 determines, according to the working time of the load, a preset time of reversing the motor 11 through a formula or a look-up table.
  • the preset duration is positively related to the working duration of the load, that is, the longer the working duration of the load, the longer the preset duration of the motor 11 reverse rotation.
  • the reversal time of the motor 11 is dynamically adjusted, so that the retraction distance of the push rod 142 is positively related to the load working time of the electric glue gun 100, which can avoid the colloid overflow phenomenon or the push rod 142 retreating if the push rod 142 is insufficiently retracted. If the distance is too long, the push rod 142 or the glue gun becomes loose and the idle stroke of the push rod 142 is too much for the next boot, which wastes time and energy.
  • the controller 61 brakes the motor 11 after the trigger 16 is released and before the motor 11 is reversed.
  • the motor braking method may be a conventional braking method in the art, and is not limited herein.
  • the controller 61 controls the motor 11 to reverse, and stops the motor from driving after reaching a predetermined preset period of time for the motor to reverse.
  • the electric glue gun 100 further includes a memory (not shown).
  • the memory may be built in the controller 61 or may be a separate memory chip.
  • the memory stores at least the state of the electric glue gun 100 before the power is turned off.
  • the state includes the speed mode and the speed of the motor before the electric glue gun 100 is powered off.
  • the speed mode includes the speed adjustment mode, the fixed speed Speed mode, jog mode.
  • a control method of the fifth embodiment of the electric glue gun 100 before the power is turned off, the speed mode and the motor rotation speed before the electric glue gun 100 is powered off are stored, and the speed mode includes the speed adjustment mode And fixed speed mode.
  • a control method of the fifth embodiment of the electric glue gun 100 is as follows:
  • the detection unit detects a load working event.
  • the detection unit may be the current detection circuit 66 or the pressure detection device 68 described above, and detects whether the electric glue gun 100 is under load or a load operation event by detecting the current flowing to the motor or the pressure in the plastic bottle;
  • the trigger state detection device monitors the trigger state in real time, and the controller 61 detects the trigger state from the trigger state detection device.
  • S122 Determine whether a load working event occurs and whether the trigger is in a released state
  • the controller 61 determines whether the electric glue gun 100 is under load or a load operation event occurs according to the detection result of the detection unit; the controller 61 determines whether the trigger 16 is in a released state according to a detection signal of the trigger state detection device. If it is determined that a load working event has occurred in the electric glue gun 100 and the trigger 16 is released, go to step S103, otherwise go to step S101.
  • the load working time determining unit 67 determines the load working time of the electric glue gun 100 according to a change in the parameter detected by the detection unit 100. For the current detection circuit 66, the load working time determining unit 67 determines the load based on the detected current change. Working time; for the pressure detecting device 68, the load working time determining unit 67 determines the working time of the load according to the detected pressure change in the plastic bottle 15.
  • the load working duration determining unit 67 may specifically include a comparator and a timer or a counter. Taking the detection unit including the current detection circuit 66 as an example, the load operation duration determination unit 67 obtains the current detection value of the current detection circuit 66. When the current detection value is greater than or equal to a preset current threshold, the timer of the load operation duration determination unit 67 or The counter starts counting until the trigger is released to stop timing or counting, and the result of the timer or counter is sent to the controller 61 as a load working time. The controller 61 acquires the load working duration determined by the load working duration determining unit 67.
  • the controller 61 determines, according to the working time of the load, a preset time of reversing the motor 11 through a formula or a look-up table.
  • the preset duration is positively related to the working duration of the load, that is, the longer the working duration of the load, the longer the preset duration of the motor 11 reverse rotation.
  • the reversal time of the motor 11 is dynamically adjusted, so that the retreat distance of the push rod 142 is positively related to the load working time of the electric glue gun 100, which can avoid the colloid overflow phenomenon or the push rod 142 return when the push rod 142 is insufficiently retracted.
  • the retracting distance is too long, which causes the push rod 142 or the glue gun to loosen, and the idle stroke of the push rod 142 in the next boot is too much, wasting time and energy.
  • the controller 61 brakes the motor 11 after the trigger 16 is released and before the motor 11 is reversed.
  • the motor braking method may be a conventional braking method in the art, and is not limited herein.
  • the controller 61 controls the motor 11 to reverse, and stops the motor 11 from driving after reaching a predetermined preset period of time for the motor reverse.
  • the state of the electric glue gun 100 is stored, the state includes a speed mode and a motor speed, and the speed mode includes a speed adjustment mode and a fixed speed mode.
  • the electric glue gun 100 is restored to the state before the power is turned off during the output stage of the startup, and then the first or second or third or third
  • the control method of the fourth or fifth embodiment controls the operation process of the electric glue gun 100.
  • the control method of the sixth embodiment of the electric glue gun 100 includes the following contents:
  • the electric glue gun When the tact switch is in the first state, the electric glue gun is caused to run according to the state before the last power-off until the tact switch is triggered to the second state, so that the electric glue gun 100 is operated according to the current setting state.
  • control method of the sixth embodiment of the electric glue gun 100 described above specifically includes the following contents:
  • step A after the electric glue gun 100 is started, the controller 61 reads from the memory the state of the electric glue gun 100 before the power was last turned off.
  • the state includes the speed mode of the electric glue gun 100 before the power is turned off and the motor speed.
  • the speed mode includes the speed adjustment mode and the fixed speed mode.
  • S132 Determine whether the electric glue gun 100 is in the speed adjustment mode before the last power failure
  • the controller 61 reads the state of the electric glue gun 100 from the memory before the last power failure, and determines whether the electric glue gun 100 is in the speed adjustment mode before the last power failure. If yes, go to step S133, otherwise go to Step S136.
  • the controller 61 When the controller 61 reads from the memory that the electric glue gun 100 was in the speed adjustment mode before the last power failure, the electric glue gun 100 is controlled to enter the speed adjustment mode, and the speed of the electric glue gun 100 is controlled by the trigger amount of the trigger.
  • step S136 determines whether the state of the tact switch 20 is triggered according to the detection result of the switch state detection device, if yes, it goes to step S136, otherwise it goes to step S135.
  • S135 Electric glue gun 100 speed out glue
  • the controller 61 determines that the touch switch 20 is not triggered, the controller 61 controls the electric glue gun to continue to be in a speed adjustment mode, and the speed of the electric glue gun 100 is controlled by the trigger amount of the trigger.
  • the controller 61 When the controller 61 reads from the memory that the electric glue gun 100 was in the constant speed mode before the last power failure, the electric glue gun 100 is controlled to enter the constant speed mode, and the electric glue gun 100 outputs a constant power. At this time, the controller 61 controls The motor 11 runs at the speed before the last power failure or the speed before the tact switch 20 is triggered.
  • the controller 61 controls the motor 11 to operate at the speed before the tact switch 20 is triggered.
  • the control motor runs at the speed before the last power failure.
  • step S133 When the controller 61 determines whether the state of the touch switch 20 is triggered according to the detection result of the switch state detection device, if yes, go to step S133, otherwise go to step S138.
  • the controller 61 controls the electric glue gun to continue to be in a constant speed mode, the electric glue gun 100 outputs a constant power, and the motor speed is according to the time before the last power failure or before the touch switch 20 is started The speed of operation is not controlled by the amount of trigger of the trigger 16.
  • the state before the electric glue gun 100 is powered off can be recorded, so that when the electric glue gun 100 tool is restarted after the power is turned off, the electric glue gun 100 can still run in the state before the power is turned off, so that for the same batch of work objects In other words, the motor 11 runs at the same speed after the speed is adjusted.
  • the electric glue gun 100 can work with the same output power, which can ensure a more consistent and better working effect, and can also prevent the electric glue gun 100 from breaking. The trouble of speed adjustment after power.
  • the present disclosure also provides an electric glue gun, which includes: a housing; a motor supported by the housing; a bracket extending from the housing, the bracket being used to support a plastic bottle; a pushing mechanism Supported by the housing and connected to a motor, which is driven by the motor to extrude the gel in the plastic bottle; the ejection mechanism includes a push rod that can move in a first direction and a second direction; An operating mechanism supported by the casing and movable in at least one direction, the operating mechanism being operable, and at least an operating state for stopping driving of the motor; and a detecting section for operatively detecting the electric glue gun A load working event; a controller connected to the motor and the operating mechanism, the controller being configured to determine whether the electric glue gun is an electric gun according to a detection result of the detecting unit and an operating state of the operating mechanism; In the first stop mode or the second stop mode; when the electric glue gun is in the first stop mode, controlling the motor to make the pusher move back a predetermined distance; when the electric glue gun is
  • the controller determines that the electric glue gun is in a first stop mode when the detection unit detects a load work event and when the operating mechanism is in the operating state that stops the motor from driving;
  • the detecting unit does not detect a load working event and the controller determines that the electric glue gun is in a second stop mode when the operating mechanism is in the operating state in which the motor stops driving.
  • the detection section is implemented in accordance with the detection section in the above embodiment.
  • the electric glue gun 100 may not include the above-mentioned operating mechanism located on the electric glue gun 100, that is, the signal for stopping the motor is not limited to input from an external user, but may also come from the electric glue gun 100
  • the internal electrical signal for example, the controller 61 needs to stop the glue application after detecting a change in a parameter or reaching a critical value. For example, if the electric glue gun 100 detects that the temperature of the battery pack is too high or is under-voltage, etc., the controller 61 stops outputting a signal to run the motor, and the motor stops driving.
  • the electric glue gun 100 of the present disclosure has at least the following beneficial effects:
  • the control motor When the electric glue gun detects that the trigger is released, the control motor reverses the preset time to make the pusher back a certain distance to prevent the glue from continuing to flow or leak out of the nozzle of the glue gun after the trigger is released and the glue is stopped. Waste of colloid and dirt of nozzle, the electric glue gun of the present disclosure can effectively prevent the colloid from overflowing after the trigger is released;
  • the pusher By detecting whether a load working event has occurred in the electric glue gun (that is, whether or not a gluing operation has been performed), the pusher is only retracted a certain distance when the load working event is detected so that the gel does not overflow, and when no gluing is detected When glue is applied, the push rod is not retracted, unnecessary operations are reduced, and simple operation can also save energy;
  • Adjust the distance of the push rod back according to the length of the glue so that the distance of the push rod is positively related to the length of the glue. This can avoid the retreat according to the fixed distance when the glue time is different. There may be glue dripping, or the retracting distance is too long, which will cause the glue gun to loosen and the idle stroke of the push rod in the next start-up will be too much, wasting time and energy;
  • the governor By setting the governor to achieve different power output of the electric glue gun, so as to meet the needs of different working conditions; at the same time, by setting the output power upper limit control mechanism, it can be set with multiple gears, can achieve electric glue gun in multiple Variable speed adjustment in gears, and each gear has an upper output power limit.
  • the motor has different maximum speeds in the multiple gears, to avoid users from triggering too much and causing undesirably excessive output power. And motor speed, convenient for user operation, good safety; at the same time, the setting of multiple gears corresponds to different speed regulation ranges, so that users can choose different speed regulation ranges according to different needs, which is convenient for operation;
  • the motor speed is determined according to the trigger amount of the trigger, which is convenient for the user.
  • the motor can maintain a fixed speed in a gear position. This can prevent the user from pressing and holding the trigger. And the user's hand shake may cause the speed to be unstable, so that the glue part is uniform, which affects the quality of work.
  • the motor output speed is preset for each interval and the electric glue gun is set for a predetermined interval. In order to avoid the continuous dispensing, reduce unnecessary waste;
  • the state of the electric glue gun before power failure can be recorded, so that when the electric glue gun tool is restarted after the power is turned off, the electric glue gun can still run in the state before the power failure.
  • the motor can run at the same speed, which can ensure a more consistent and better working effect of the electric glue gun, and can also avoid the trouble of speed adjustment after the electric glue gun is powered off.
  • the disclosure provides an electric glue gun and a control method thereof, which can prevent the glue from continuing to flow out of the nozzle after the electric glue gun stops glue application, which causes waste of the glue and pollution of the nozzle.

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Abstract

一种电动胶枪(100),包括:壳体(12);电机(11),由壳体(12)支撑;推出机构(14),由壳体(12)支撑并连接至电机(11),用于安装胶瓶(15)并挤出胶体;检测部(66,68),用于检测电动胶枪(100)的负载工作事件;控制器(61),与电机(11)连接,并且被配置为:根据检测部(66,68)的检测结果判断电动胶枪(100)是否发生负载工作事件;在判断电动胶枪(100)发生负载工作事件且在电机(11)停止驱动后,控制电机(11)反转以使推出机构(14)回退预定距离。公开了上述电动胶枪(100)的控制方法。所述电动胶枪(100)能够防止停止打胶后,胶体继续流出喷嘴,造成胶体浪费以及喷嘴污染。

Description

电动胶枪及其控制方法 技术领域
本公开涉及一种电动胶枪及其控制方法。
背景技术
电动胶枪是一种能够自动打胶或挤胶的工具,其广泛应用于建筑装饰、电子电器、汽车部件等行业。相对手动胶枪而言,现有技术中的电动胶枪,自动化程度高,相对较为省力。然而,现有的电动胶枪至少存在一个缺陷。当用户释放扳机以停止打胶工作后,胶体仍然继续流出或渗出胶枪的喷嘴,导致胶体的浪费,且产生喷嘴污垢,还会增加额外的清理胶体的时长。
发明内容
为解决现有技术的不足,本公开的目的在于提供一种可以防止电机停止驱动后胶体继续渗出喷嘴的电动胶枪及其控制方法。
为了实现上述目标,本公开采用如下的技术方案:
一种电动胶枪,包括:壳体;电机,由所述壳体支撑;支架,从所述壳体延伸,所述支架用于支撑胶瓶;推出机构,由所述壳体支撑并连接至电机,由所述电机驱动以挤出胶瓶中的胶体;所述推杆机构包括推杆,所述推杆可沿第一方向移动和第二方向移动;操作机构,由所述壳体支撑并至少可沿一个方向移动,所述操作机构可被操作,且至少包括使所述电机停止驱动的操作状态;检测部,用于检测所述电动胶枪的负载工作事件;控制器,与所述电机和所述操作机构连接,所述控制器被配置为:根据所述检测部的检测结果判断所述电动胶枪是否发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的所述操作状态时,控制所述电机反转以使所述推杆回退预定距离。
进一步地,所述控制器被配置为在所述电动胶枪未发生负载工作事件,在所述操作机构处于使所述电机停止驱动的所述操作状态时,控制所述电机使所述推出不回退。
进一步地,所述检测部为一个检测电路,所述检测电路独立于所述控制器
进一步地,所述控制器包括所述检测部。
进一步地,所述控制器还被配置为在所述电机反转之前制动所述电机。
进一步地,所述检测部包括电流检测电路,用于检测流向所述电机的电流,其输出端与所述控制器连接;所述控制器还被配置为将所述电流检测电路的检测结果与预设电流阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件。
进一步地,在所述电流检测电路的电流检测值大于或等于预设电流阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
进一步地,所述检测部包括压力检测装置,用于检测所述胶瓶中的压力,其输出端与所述控制器连接;所述控制器被配置为将所述压力检测装置的检测结果与预设压力阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件。
进一步地,在所述压力检测装置的压力检测值大于或等于预设压力阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
进一步地,所述电动胶枪还包括负载工作时长确定单元,用于确定所述电动胶枪负载工作时长;所述控制器被配置为根据所述电动胶枪负载工作时长调整所述推杆的回退距离。
进一步地,所述电动胶枪负载工作时长与所述推杆的回退距离呈正相关关系。
进一步地,所述电动胶枪具有调速模式,所述控制器被配置为在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速。
进一步地,所述电动胶枪还具有定速模式;所述控制器被配置为在所述电动胶枪处于所述定速模式时,控制所述电机输出固定转速。
进一步地,所述电动胶枪还具有点动模式,所述控制器被配置为在所述电动胶枪处于所述点动模式时,控制所述电机每间隔第一预设时长运行第二预设时长。
进一步地,所述电动胶枪还包括:轻触开关,可操作地被触发以使所述电动胶枪在所述调速模式、定速模式和点动模式之间切换。
进一步地,所述电动胶枪还包括调档开关,所调档开关设置有多个档位,所述电机在所述多个档位下具有不同的最高转速。
进一步地,所述电动胶枪还包括存储器,所述存储器用于至少存储所述电动胶枪断电前的状态。
进一步地,所述控制器还被配置为:获取所述电动胶枪断电前的状态;控制所述电机按照所述电动胶枪断电前的状态运行。
进一步地,所述电动胶枪断电前的状态包括电机转速和速度模式,所述速度模式包括调速模式、定速模式或点动模式。
一种如上所述的电动胶枪的控制方法,包括:获取所述检测部的检测结果;根据所述检测部的检测结果判断所述电动胶枪是否发负载工作事件;获取所述操作机构的操作状态;根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;在判断所述电动胶枪发生负载工作事件且在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。
另一种如上所述的电动胶枪的控制方法,包括:获取流向所述电机的电流;在流向所述电机的电流大于或等于预设电流阈值时,判断所述电动胶枪发生负载工作事件;获取所述操作机构的操作状态;根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。
再一种如上所述的电动胶枪的控制方法,包括:获取检测所述胶瓶中的压力;
在所述胶瓶中的压力大于或等于预设压力时,判断所述电动胶枪发生负载工作事件;获取所述操作机构的操作状态;根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的操作状态时,控 制所述电机反转以使所述推杆回退预定距离。
进一步地,上述控制方法还包括获取所述电动胶枪负载工作时长,所述推杆回退的预定距离与所述电动胶枪负载工作时长呈正相关关系。
另一种电动胶枪,包括:壳体;电机,由所述壳体支撑;推出机构,由所述壳体支撑并连接至电机,所述推出机构用于安装胶瓶并挤出胶体;检测部,用于检测所述电动胶枪的负载工作事件;控制器,与所述电机连接,所述控制器被配置为:根据所述检测部的检测结果判断所述电动胶枪是否发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
进一步地,所述检测部为一个独立于所述控制器的检测电路或所述控制器包括所述检测部。
进一步地,所述检测部包括电流检测电路,用于检测流向所述电机的电流,其输出端与所述控制器连接;所述控制器还被配置为:将所述电流检测电路的检测结果与预设电流阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述电流检测电路的电流检测值大于或等于预设电流阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
进一步地,所述检测部包括压力检测装置,用于检测所述胶瓶中的压力,其输出端与所述控制器连接;所述控制器被配置为:将所述压力检测装置的检测结果与预设压力阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述压力检测装置的压力检测值大于或等于预设压力阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
进一步地,所述电动胶枪还包括负载工作时长确定单元,用于确定所述电动胶枪负载工作时长;所述控制器被配置为根据所述电动胶枪负载工作时长调整所述推出机构的回退距离。
进一步地,所述电动胶枪负载工作时长与所述推出机构的回退距离呈正相关关系。
进一步地,所述电动胶枪具有调速模式,所述控制器被配置为在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同 转速。
进一步地,所述电动胶枪具有调速模式和/或定速模式;所述控制器被配置为在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速;所述控制器还被配置为在所述电动胶枪处于所述定速模式时,控制所述电机输出固定转速。
进一步地,所述电动胶枪具有调速模式和/或定速模式和/或点动模式,所述控制器被配置为:在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速;在所述电动胶枪处于所述定速模式时,控制所述电机输出固定转速;在所述电动胶枪处于所述点动模式时,控制所述电机每间隔第一预设时长运行第二预设时长。
进一步地,所述电动胶枪还包括轻触开关,所述轻触开关可被操作地使所述电动胶枪切换到所述调速模式和/或定速模式和/或点动模式。
一种如上所述的电动胶枪的控制方法,包括:获取所述检测部的检测结果;根据所述检测部的检测结果判断所述电动胶枪是否发负载工作事件;在判断所述电动胶枪发生负载工作事件且所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
另一种如上所述的电动胶枪的控制方法,包括:获取流向所述电机的电流;在流向所述电机的电流大于或等于预设电流阈值时,判断所述电动胶枪发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
再一种如上所述的电动胶枪的控制方法,包括:获取检测所述胶瓶中的压力;在所述胶瓶中的压力大于或等于预设压力时,判断所述电动胶枪发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
进一步地,所述控制方法还包括获取所述电动胶枪负载工作时长,所述推出机构回退的预定距离与所述电动胶枪负载工作时长呈正相关关系。
再一种电动胶枪,包括:壳体;原动机,由所述壳体支撑;推出机构,由所述壳体支撑并连接至原动机,所述推出机构用于安装胶瓶并挤出胶体;检测 部,用于检测所述电动胶枪的负载工作事件;控制器,与所述原动机连接,所述控制器被配置为:根据所述检测部的检测结果判断所述电动胶枪是否发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述原动机停止驱动后,控制所述原动机以使所述推出机构回退预定距离。
进一步地,所述检测部为一个独立于所述控制器的检测电路或所述控制器包括所述检测部。
进一步地,所述检测部包括电流检测电路,用于检测流向所述原动机的电流,其输出端与所述控制器连接;所述控制器还被配置为:将所述电流检测电路的检测结果与预设电流阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述电流检测电路的电流检测值大于或等于预设电流阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
进一步地,所述检测部包括压力检测装置,用于检测所述胶瓶中的压力,其输出端与所述控制器连接;所述控制器被配置为:将所述压力检测装置的检测结果与预设压力阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述压力检测装置的压力检测值大于或等于预设压力阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
进一步地,所述电动胶枪还包括负载工作时长确定单元,用于确定所述电动胶枪负载工作时长;所述控制器被配置为根据所述电动胶枪负载工作时长调整所述推出机构的回退距离。
进一步地,所述电动胶枪负载工作时长与所述推出机构的回退距离呈正相关关系。
本公开的有益之处在于:电动胶枪在电机停止驱动后,电机反转预设时长,以使推出机构回退一定距离,防止电动胶枪停止出胶后胶体仍然继续流出或渗出胶枪的喷嘴,造成胶体的浪费以及喷嘴污垢,本公开的电动胶枪可以有效避免停打胶后胶体溢出;进一步地,通过检测电动胶枪是否发生了负载工作事件(即,是否进行了打胶工作),在检测到发生负载工作事件时才使推杆回退一定距离使得胶体不会溢出,而在未检测到打胶时,则使推杆不回退,减少不必要的操作,简便操作的同时也能节约能源。
附图说明
图1是电动胶枪安装胶瓶状态下的立体图;
图2是图1中的电动胶枪未安装胶瓶的立体图;
图3是图2中的电动胶枪的平面图;
图4是图2中的电动胶枪的局部剖面图;
图5是图4中的电动胶枪的A处的局部放大图;
图6是第一种实施方式的电动胶枪的电路原理图;
图7是第一种实施方式的电动胶枪的控制方法流程图;
图8是第二种实施方式电动胶枪的电路原理图;
图9是第二种实施方式的电动胶枪的控制方法流程图;
图10是第三种实施方式的电动胶枪的控制方法流程图;
图11是第四种实施方式的电动胶枪的控制方法流程图;
图12是第五种实施方式的电动胶枪的控制方法流程图;
图13是第六种实施方式的电动胶枪的控制方法流程图。
具体实施方式
以下结合附图和具体实施例对本公开作具体的介绍。
参照图1至图4所示的电动胶枪100,其主要包括:原动机、壳体12、推出机构14。
壳体12内部形成有第一容纳腔121,原动机设置在壳体12的第一容纳腔121内,壳体12还形成有用于供操作者握持的把手122。在本实施例中,原动机为电机11,电机包括一个电机轴111,用于驱动输出轴145以中心轴线为轴摆动。
电动胶枪100还包括变速装置13,变速装置13设置在壳体12的第一容纳腔121内,位于电机11的电机轴111和输出轴145之间用于改变电机11输出的转动速率同时将转动传递至输出轴145。变速装置13的具体结构已经为本领 域熟知技术,具体不再赘述。
推出机构14包括:第二容纳腔141、推杆142、传动机构143和锁止机构144。传动机构143连接输出轴145,用于驱动推杆142沿第一直线方向101滑动,从而挤出胶体。传动机构143形成或连接有推杆旋转件,输出轴145驱动推杆旋转件转动,推杆142穿过推杆旋转件并随推杆142旋转件的转动被驱动。为清楚的说明本公开的技术方案,还定义了图4所示的:前侧和后侧。第二容纳腔141用于安装并固定胶瓶15,胶瓶15内装有胶体。当推杆142滑动至胶瓶15底部并产生挤压力时,胶体自胶瓶15内被挤出。
如图5至图6所示,锁止机构144连接至推杆142和传动机构143之间,当锁止结构被锁定时,推杆142仅能在传动机构143的驱动下向前运动;当锁止结构被解锁时,推杆142可以在前后方向自由滑动。锁止机构144的设置便于用户轻松更换胶瓶15,增加工作的连续性。为了使推杆142挤压胶瓶15时作用力均匀且连续,还在推杆142的前侧设置了顶头142a,该顶头142a可以是与推杆142一端连接或形成于推杆142一端的圆盘,也可以是便于挤压胶瓶15其他形状或结构。
在本实施方式中,推杆142具体是一根具有外螺纹的丝杆,丝杆还形成有防止其自身在滑动过程中转动的扁位,即丝杆上的外螺纹是非连续的,丝杆本体在沿第一直线方向101上存在一段光滑的平面,该平面阻断了外螺纹的连续结构,使得其在被推杆142旋转件驱动时仅发生滑动,而不会产生转动。
电动胶枪100还包括操作机构,其由所述壳体12支撑并至少可沿一个方向移动,所述操作机构可被操作,且至少包括使所述电机停止驱动的操作状态。在本实施方式中,所述操作机构为扳机16,其可被按压和释放,其在被按压至一定行程时可使电机启动,而在被释放一定行程时使电机停止驱动。在本公开中,电机停止驱动指的是控制器停止输出使电机运行的信号,但此时电机可能由于惯性作用仍然在转动,但其转速逐渐降低直至最后完全停止转动。
电动胶枪100具有一个调速模式。在调速模式状态下,用户可以根据需要任意调节电动胶枪100的电机11的转速,使得电动胶枪100的输出不同功率。如图4所示,电动胶枪100形成或连接有用于调节胶体挤出速率的调速装置,所述调速装置用于实现调速模式。在本实施方式中,调速装置包括调速器17, 所述调速器17与扳机16关联连接。
扳机16安装至把手122一侧,并能在推出机构14和把手122的夹角范围内围绕一转动轴自由转动。具体的,扳机16包括:握持部161和连接部162。其中,握持部161可供用户握持以启动电动胶枪100;连接部162形成一个连接孔162a,该连接孔162a用于将扳机16转动连接至转动轴上。
如图5所示,连接部162还连接或形成有第一调节部162b,调速器17在电动胶枪100靠近第一调节部162b的位置与第一调节部162b关联连接。其中,第一调节部162b具体为一段圆弧,该圆弧以连接轴的轴心为圆心。调速器17在结构上具体为一个转动开关,用户可以通过调节调速器17的转动角度来控制电动胶枪100的输出功率。调速器17形成有第二调节部171,第二调节部171具体为围绕调速器17外表面形成的一圈齿,第一调节部162b上均匀分布有多个齿,其与调速器17上的外齿啮合。调速器17与扳机16关联连接,在用户操作扳机16沿第一方向转动的过程中,第一调节部162b驱动转动开关沿第一方向转动,调速器17转动的角度越大,电动胶枪100的输出功率越大,胶体被挤出的速率越快;当扳机16沿第一方向转动到极限位置时,电动胶枪100的输出功率最大,可以理解,扳机16的转动角度与电动胶枪100的输出功率呈正向线性关系,即扳机16转动的角度越大,电动胶枪100的输出功率越大。优选地,扳机16与把手122的夹角为45°,不仅可以实现用户较操作的舒适性,同时也能实现扳机16以较大的角度调节电动胶枪100的输出功率。可以理解,扳机16与把手122的夹角也可以设定为其他值,在此不作限定。通过设置扳机机构实现电机11不同转速输出,从而使得电动胶枪100输出不同功率,从而满足不同工况的需求。
如图4所示,电动胶枪100还形成或连接有可供用户感知输出功率的反应部163。在本实施方式中,反应部163为一个连接至把手122和扳机16的弹性件163a。具体的,把手122形成或连接有一个可供弹性件163a套设的凸起,扳机16的握持部161形成有个可供弹性件163a插入的容纳槽。弹性件163a装配至扳机16与把手122之间时,其具备一个预紧力,该预紧力可以使扳机16相对于把手122具有一个固定的夹角。可以理解,对于螺旋弹簧而言,当作用于弹簧的作用力越大时,弹簧的形变越大,用户受到的反作用力也越大。用户在操作扳机16转动并靠近至把手122后的过程中,需要克服弹性件163a的弹性 力做功,用户可以根据弹性件163a的反作用力判断扳机16的转动角度,从而可以合理的根据自身的感觉控制电动胶枪100的输出功率。可以理解,反应部163不限于上述实现形式,凡是能通过反作用力使用户感知电动胶枪100的输出功率的,均落入本公开的保护范围内。
电动胶枪100还具有一个定速模式,当电动胶枪100处于定速模式时,电机11能够不依赖于扳机16的勾动量而可以转速固定转速,这样可以在调节到一个较佳转速,并以该较佳的转速进行工作,从而保证较佳的工作效果。同时,还能避免操作者长时长保持勾动扳机16的状态而疲劳以及可能由于操作者手部抖动造成电机11的转速不稳定而降低工作效果和工作质量。这样,即使操作者没有连续地勾动扳机也能使电机11保持固定的转速输出。
电动胶枪100还包括一个轻触开关20,可操作地被触发以使所述电动胶枪100在调速模式和定速模式之间切换。当操作者操作扳机16持续作业、且在需要在某个固定转速输出持续作业时,可以在电机11处于该固定转速时触发轻触开关20,此时,控制器18能够获取电动胶枪100当前的电机转速的信号,并能以依据该信号控制电机11以该转速持续运行,以使得电动胶枪100的输出恒定功率,此时,扳机16的调速功能失效。当操作者需要重新调节电机11的转速,使得电动胶枪100在调速模式下工作时,可再次触发轻触开关20,使得电机11按照扳机16的勾动量所对应的转速工作,电动胶枪100进入调速模式,如果需要按照重新调节后的当前转速持续工作,则可再次触发轻触开关20,使得电机11按照当前转速持续运行,扳机16的调速功能失效,电动胶枪100进入定速模式。这样,通过触发轻触开关20,使得电动胶枪100在定速模式和调速模式之间切换。作为可选地,电动胶枪100还包括开关状态检测装置(未示出),用于检测所述轻触开关20的状态或状态变化。在一些具体的实施方式中,所述状态包括第一状态和第二状态,在轻触开关20处于第一状态下,电动胶枪100处于调速模式,在轻触开关20处于第二状态下,电动胶枪100处于定速模式。在另一些具体的实施方式中,所述轻触开关20发生变化时,电动胶枪100从一种速度模式切换到另一种速度模式,所述速度模式包括调速模式和定速模式。
通过设置调速模式和定速模式,可满足用户不同的需求。在调速模式下根据扳机的勾动量确定电机11的转速;在定速模式下,电机11可以在一个档位 下维持固定速度,这样可以避免用户一直按着扳机较吃力且不方便,以及可能用户手出现抖动导致速度不稳定,并且在定速模式下,出胶量均匀,在一些有美观要求的场合,例如,门窗密封玻璃时,尤其是拐角处,不能有胶体推挤,影响美观。本公开的电动胶枪可以满足上述需求。
作为可选地,电动胶枪还包括点动模式,上述轻触开关20可操作地被触发以使所述电动胶枪100在调速模式、定速模式以及点动模式之间切换。在所述电动胶枪100处于所述点动模式时,控制所述电机11每间隔预设时长输出转速,所述转速为一个固定转速。所述的预设时长由用户选择性设置,以满足工作需求。例如,在广告宣传纸或宣传牌安装时,使用电动胶枪100的点动模式,在点动模式下,电动胶枪100每隔预设时长出胶,在广告宣传纸或宣传牌上打出间隔距离的胶体,这样既能将广告宣传纸或宣传牌安装到固定对象上,也能避免一直出胶,减少不必要的浪费。对应地,轻触开关20具有第三状态,在轻触开关20处于第三状态时,电动胶枪100处于点动模式。当然,轻触开关20还可以仅包括一个按压后松开恢复原状态的状态,根据轻触开关被按压和/或恢复原状态的次数,来确定电动胶枪处于何种速度模式。例如,1次对应调速模式、2次对应固定模式、3次对应点动模式、4次对应调速模式、5次对应固定模式、6次对应点动模式、7此对应调速模式......,依次类推。
电动胶枪100还包括具有存储功能的存储器,所述存储器在断电后存储的数据不会丢失。存储器设置在壳体12中,在一些具体的实施方式中,存储器与控制器61电连接,所处存储器也可以集成在所述控制器61中。所述存储器能够存储电动胶枪100在断电前的状态,所述状态包括断电前电动胶枪100所处速度模式以及电机11的转速,所述速度模式包括所述调速模式、定速模式、点动模式。通过设置的具有断电存储功能的存储器,可以记录电动胶枪100断电前的状态,可以实现在电动胶枪100工具断电后再次启动时,电动胶枪100仍然以断电前的状态运行,这样对于同一批工作对象而言,电机11以经过调速后的较佳的同一转速运行,能够保证电动胶枪100较一致和较佳的工作效果,还可以避免电动胶枪100断电后再调速的麻烦。
作为可选地,所述电动胶枪100还设有控制电动胶枪100输出功率上限的控制机构,该控制机构包括一个调档开关19,调档开关19设置有多个档位,所述电机11在所述多个档位下具有不同的最高转速。例如,调档开关19设置有6 个档位,1档对应电机转速0-4000rpm、2档对应电机转速0-8000rpm...6档对应电机转速0-24000rpm,在不同档位下,扳机处于相同位置时,对应地电机转速也不相同。在一些具体的实施方式中,所述调档开关19为拔钮,通过调节拔钮来调控电动胶枪100的输出功率档位。可以理解,拔钮可以设置有多个档位,可以实现电动胶枪100在多个档位下的变速调节,并且每个档位设置电机11的最高转速,限制电动胶枪100在各个档位下的最大输出功率,避免操作者勾动扳机16的操作量过大而出现不期望的过大的输出功率或转速,安全性好,为操作者提供较佳的用户体验。同时,多个档位的设置对应不同的调速范围,使得用户根据不同需求要选择不同调速范围,方便操作。
电动胶枪100还包括供电电源,供电电源用于为电动胶枪100提供电能。在一些实施例中,电动胶枪100使用直流电源供电,更具体地,电动胶枪100使用电池包10供电,电池包10配合相应的电源电路,如DC-DC转换芯片,为所述电机11以及电路板上的电路部件供电。本领域技术人员应当理解,供电电源并不限于使用电池包10的场景,还可通过市电、交流电源,配合相应的整流、滤波和调压电路,实现对各电路元件的供电。
在本实施例中,电动胶枪100使用电池包10供电,电池包10可拆卸的安装至电动胶枪100。电池包10包括壳体和电池芯。电池芯容纳在壳体中,用于存储能量,其能被反复充放电。壳体形成有连接界面,用于与电动胶枪100的电池包接合部连配合连接。
电动胶枪100的运行还依赖于电路系统,电路系统包括电路部件,电路部件设置于电路板18上,电路板18位于壳体12中。
参照图6,作为第一种实施方式的电动胶枪100,其电路系统包括:控制器61、电源电路62、调速器17、电流检测电路66、负载工作时长确定单元67以及电池包10、电机11。电池包10可拆卸地安装至电动胶枪100。
控制器61用于控制电动胶枪100的操作过程。可选的,所述控制器61包括单片机或微控制器(MCU),ARM芯片(高效能RISC(reduced instruction set computing,精简指令集计算)微处理器,Advanced RISC Machine),DSP芯片(通用数字信号处理器)中的任意一种或组合。
电源电路62与控制器61电连接,用于将来自供电电源的电能转换成可供 控制器31以及其他电路部件工作的电能。在本实施例中,供电电源为电池包10,因此,电源电路62可以包括DC-DC转换芯片。本领域技术人员应当理解,供电电源并不限于使用电池包10的场景,还可通过市电、交流电源,配合相应的整流、滤波和调压电路,实现对各电路元件的供电,此时电源电路包括整流、滤波和调压电路。
在一些实施方式中,电动胶枪100还包括电流开关64,电流开关64与扳机16关联连接,电流开关64串联连接在主回路上,允许或禁止电池包10的电流流向所述电动胶枪100。电流开关64一端用于与电池包10的电源端子电性连接,另一端与电源电路62连接。在电流开关64未接通时,电源电路62断电,电源电路62无法为控制器61供电,控制器61不工作,电动胶枪100不工作;在电流开关64接通时,电源电路62得电,控制器61从电源电路33获取电能后控制电机11工作。作为一种实施方式,当扳机16被按下至第一位置时,电流开关64接通,电机11启动;当电流开关64被释放至第二位置时,电机11停止驱动。在其他的一些实施例中,电流开关64与扳机16不关联设置,而是通过设置扳机状态检测装置(未示出)来检测扳机16的状态,扳机状态检测装置与控制器61电连接,控制器61根据扳机状态检测装置检测到的扳机的状态控制电流开关的接通或断开,当扳机16处于从初始状态到被按压时,控制器61控制电流开关64接通,当扳机16处于从被按压状态边为释放状态时,控制器61控制电流开关64断开或不断开。
调速器17与扳机16关联连接,且与控制器61电连接。在扳机16被按压不同行程时,对应地调速器17处于不同状态,控制器61根据调速器17的不同状态控制电机11输出不同的转速。作为一个具体的实施方式,调速器17包括一个滑动变阻器,扳机16与滑动变阻器的移动端子连接,当扳机16被按下不同行程时,滑动变阻器接入到电路中的阻值发生变化,该变化的阻值可通过相关电路转换成电压信号,这样控制器61根据调速器17的电压信号与预先存储的电压-转速表或电压-转速公式即可获得操作者期望的电机11的转速,从而控制器61输出地控制信号控制电机11输出操作者所期望的转速。
在本实施例中,为减小整机的尺寸,电机11设置为无刷电机,当然,电机11也可以采用其他电机,在此并不作限制。为了控制此电机的运行,电动胶枪100还包括驱动电路63,驱动电路63与控制器61电连接,用于控制电机11的 运行。驱动电路63电连接至所述无刷电机的三相绕组,用以驱动所述无刷电机的转子运转,所述驱动电路63包括开关元件。如图6所示的驱动电路63包括开关元件VT1、VT2、VT3、VT4、VT5、VT6,开关元件VT1和开关元件VT4与第一相绕组A连接,开关元件VT3和开关元件VT6与第二相绕组B连接,开关元件VT5和开关元件VT2与第三相绕组C连接。开关元件VT1~VT6可选用场效应管、IGBT晶体管等。各开关元件的栅极端分别与控制器61的驱动信号输出端电性连接,各个开关元件的漏极或源极与无刷电机17的绕组电连接。开关元件VT1-VT6依据控制器61输出的驱动信号改变接通状态,从而改变电池包10加载在无刷电机的绕组上的电压状态,驱动所述无刷电机运转。
本实施例采用无刷电机,极大地减小了电动胶枪100的尺寸,同时,通过将丝杆穿过传动机构143也极大了减小了传动机构143的结构复杂性,进一步减小了传动机构143占据的空间位置,从而从整体上优化了电动胶枪100的整机尺寸,使得电动胶枪100整机偏向轻巧化,更加方便用户长期操作,减小用户长期操作的疲劳感。
为了防止用户释放扳机16停止打胶工作后,胶体仍然继续流出或渗出胶枪的喷嘴,导致胶体的浪费,产生喷嘴污垢,增加额外的清理胶体的时长,本实施例的电动胶枪100的控制器61在检测到扳机被释放时,控制电机11反转一定时长,以使推杆142回退移动距离,可以有效避免扳机释放后胶体溢出。然而,这样会存在一个问题,在某些情况下,当电动胶枪100中没有胶体时而空载运行时(例如,清理胶瓶的情况下),不需要在扳机释放后使推杆142回退,减少不必要的操作,简便操作的同时也能节约能源。
为了解决上述问题,在本实施例中,电动胶枪100还设置有检测部,用于检测电动胶枪的负载工作事件。检测部的输出端与所述控制器61电连接,控制器61根据检测部的检测结果判断所述电动胶枪是否发生负载工作事件,在判断电动胶枪100发生负载工作事件且在操作机构处于使电机11停止驱动的操作状态时,控制电机11反转以使所述推杆回退预定距离,以使胶体在停止打胶后不会溢出。在本实施例中,操作机构为扳机16,作为一种实施方式,当操作机构处于使电机11停止驱动的操作状态时,对应的扳机16处于释放状态。
参照图6,作为第一种实施方式,所述的检测部具体地可以是电流检测电路 66,通过检测流向电机11的电流来检测电动胶枪100是否负载工作。具体地,电流检测电路66电连接至主回路上,用于检测流向电机11的绕组的电流。当推杆142推动胶体移动时,推杆142会受到胶体的反作用力,电机11的负载会比空载时大,此时的电流也会比空载时的电流大,因此可通过检测流向电机11的电流来检测电动胶枪100是否发生负载工作事件。电流检测电路66的输出端与控制器61电连接,控制器61根据所述电流检测电路66的检测结果判断所述电动胶枪100是否发生负载工作事件,并在判断所述电动胶枪100发生负载工作事件且在扳机16释放后,控制所述电机11反转预设时长。
具体地,控制器61将来自电流检测电路66将检测到的电流值与预设电流阈值进行比较,所述预设电流阈值对应于电流变化的拐点,也即是负载发生时的电流,如果电流检测值大于预设电流阈值,则判断电动胶枪100发生了负载工作事件,否则判断电动胶枪100未发生负载工作事件,在未发生打胶时长时,无需控制电机11反转使推杆142反转。
作为可选地,电动胶枪100还包括扳机状态检测装置(未示出),用于检测扳机16处于按压状态还是释放状态,扳机状态检测装置与控制器61电连接,将检测结果发送给控制器61。当检测部的检测到电动胶枪100发生负载工作事件,且当扳机状态检测装置检测到扳机16释放时,控制器61控制电机11控制所述电机11反转预设时长。扳机状态检测装置可以是电子元器件组成的电路,例如,扳机状态检测装置可以是与扳机16关联的信号开关所组成的扳机状态检测电路,控制器61根据信号开关的状态来判断扳机状态,扳机状态检测装置可以也可以是与扳机关联的滑动变阻器组成的扳机状态检测电路,控制器61根据滑动变阻器接入电路的阻值转化而来的电压信号来判断扳机状态,扳机状态检测装置还可以是能够感知扳机状态的传感器,例如检测扳机所处位置的位置传感器。当然,扳机状态检测装置还可以与上述调速器17共用,由于调速器17与扳机16关联连接,且与控制器61电连接,调速器17包括一个滑动变阻器,扳机16与滑动变阻器的移动端子连接,当扳机16被按下不同行程时,滑动变阻器接入到电路中的阻值发生变化,该变化的阻值可通过相关电路转换成不同的电压信号,控制器61根据该电压信号能够判断扳机16的状态或扳机16所处位置。当扳机被释放时或按压时,电压信号不同或电压信号的变化不同,通过这样的方式来检测扳机是处于按压状态还是释放状态。
本公开还提供了电动胶枪100的控制方法,电动胶枪100的第一种实施方式的控制方法包括:
获取流向所述电机的电流;
在流向所述电机的电流大于或等于预设电流阈值时,判断所述电动胶枪发生负载工作事件;
获取所述操作机构的操作状态;
根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;
在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。在本实施例中,操作机构为扳机16,扳机16在被释放后,控制器61停止输出使电机运行的信号,电机11停止驱动。
参照图7,上述电动胶枪100的具体的控制方法内容如下:
S70:启动电动胶枪;
将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100;
S71:获取电机电流以及扳机状态;
电流检测电路66实时检测流向电机的电流,控制器61从电流检测电路66的获取流向电机的电流;同时,扳机状态检测装置实时监测扳机状态,控制器61从扳机状态检测装置扳机状态。
S72:判断电流检测值是否大于或等于预设电流阈值以及扳机是否处于释放状态;
控制器61将获取的电机电流检测值与预设电流阈值进行比较,判断所述电流检测值是否大于或等于预设电流阈值;控制器61根据将检测到扳机状态检测装置的检测信号判断扳机16是否处于释放状态,如果判断电流检测值大于或等于预设电流阈值,则判断电动胶枪100发生负载工作事件;如果判断电动胶枪100发生负载工作事件且扳机处于释放状态,则转至步骤S73,否则转至步骤S71;
S73:控制所述电机反转预设时长;
控制器61控制电机11反转,并且在达到预设时长后使电机停止驱动。所述的预设时长可以是一个固定值,由用户根据实际需要预先设定;所述的预设时长也可以是一个变化值,在本实施例中,所述的预设时长与电动胶枪100负载工作时长确定,具体参见下文。
S74:结束。
参照图8,作为第二种实施方式,所述的检测部具体地可以是压力检测装置68,通过检测胶瓶15中的压力来检测电动胶枪100负载工作事件。具体地,压力检测装置68的安装于但不限于胶瓶中,压力检测装置68具体可以是能够感知压力变化的压力传感器。例如,压力传感器可以安装在推杆142的前端,其能够感知推杆142的前端是否接触胶体而受到胶体的压力,当电动胶枪100处于空载情况时,由于其胶瓶中没有装胶体,在这种情况下电动胶枪100工作时推杆142前端的压力传感器压力不同于电动胶枪100满载工作时的压力,因此,可以通过压力检测装置68检测胶瓶中的压力大小来检测电动胶枪100是否负载工作。压力检测装置68的输出端连接于控制器61,控制器61根据所述压力检测装置68的检测结果判断所述电动胶枪100是否发生负载工作事件,并在判断所述电动胶枪发生负载工作事件且在所述扳机释放后,控制所述电机11反转预设时长。
本公开还提供电动胶枪100的第二种实施方式的控制方法,包括:
获取检测所述胶瓶中的压力;
在所述胶瓶中的压力大于或等于预设压力时,判断所述电动胶枪发生负载工作事件;
获取所述操作机构的操作状态;
根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;
在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。在本实施例中,操作机构为扳机16,扳机16在被释放后,控制器61停止输出使 电机运行的信号,电机11停止驱动。
参照图9,具体地,上述电动胶枪100的第二种实施方式的控制方法具体包括内容:
S90:启动电动胶枪;
将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100;将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100;
S91:获取胶瓶中的压力检测值以及扳机状态;
压力检测装置68实时检测胶瓶15中的压力。压力检测装置68具体是一个压力传感器,压力传感器安装在推杆142的前端,其能够感知推杆142的前端是否接触胶体而受到胶体的压力,控制器61从压力检测装置68获取压力传感器的压力检测值;
同时,扳机状态检测装置实时监测扳机状态,控制器61从扳机状态检测装置获取扳机状态。
S92:判断压力检测值是否大于或等于预设压力阈值以及扳机是否处于释放状态;
控制器61将获得的压力检测值与预设压力阈值进行比较,判断所述电流检测值是否大于或等于预设电流阈值;控制器61根据将检测到扳机状态检测装置的检测信号判断扳机16是否处于释放状态,如果判断所述压力检测值大于或等于预设电流阈值,则判断电动胶枪100发生负载工作事件;如果判断电动胶枪100发生负载工作事件且扳机16处于释放状态,则转至步骤S93,否则转至步骤S91。
S93:控制电机反转预设时长;
控制器61控制电机11反转,并且在达到预设时长后使电机停止驱动。所述的预设时长可以是一个固定值,由用户根据实际需要预先设定;所述的预设时长也可以是一个变化值,在本实施例中,所述预设时长由电动胶枪100负载工作时长确定,具体参见下文。
S94:结束。
当然,上述检测部还可以根据满载和空载时电动胶枪100的重量来检测电动胶枪100是否负载工作。只要能够区分电动胶枪100空载和负载的不同工况的其他负载检测装置,以用于使电动胶枪100在不同工况下回退或不回退,均落在本公开的保护范围内。
在本实施例中,电动胶枪100还包括负载工作时长确定单元67,用于确定电动胶枪100负载工作时长(即电动胶枪100打胶的时长),控制器61根据所述负载工作时长控制电机11反转预设时长。所述电动胶枪100的负载工作时长与所述电机11反转的预设时长呈正相关关系。这样,根据电动胶枪100负载工作时长动态调整电机11反转时长使推杆回退不同距离,推杆142回退的距离与电动胶枪100负载工作时长正相关,这样可以避免打胶时长不同时,推杆142后推固定的距离,可能会导致推杆142回退距离不足仍然存在会滴胶的情况,或者回退距离过长而导致推杆142或电动胶枪松动以及时推杆142在下次开机所走的空行程过多,浪费时间和能源。
参照图6和图8,作为一种实施方式,负载工作时长确定单元67的输入端与检测部电连接,其输出端与控制器61电连接。负载工作时长确定单元67根据检测部的检测结果,确定负载工作时长。
参照图6,作为一种实施方式,检测部为电流检测电路66时,负载工作时长确定单元67根据电流检测电路66检测到的电流变化来确定负载工作时长。作为一种实施方式,负载工作时长确定单元67具体可以包括比较器以及计时器或计数器,负载工作时长确定单元67获取电流检测电路66的电流检测值,负载工作时长确定单元67的比较器将所述的电流检测值与预设电流阈值进行比较,当所述的电流检测值大于或等于预设电流阈值时,负载工作时长确定单元67的计时器或计数器开始计时,直至扳机被释放以停止计时或计数,所述计时器或计数器的结果作为负载工作时长发送给控制器61。控制器61获取所述负载工作时长确定单元67确定的负载工作时长,并根据所述负载工作时长通过公式或查表等方式确定电机反转的预设时长,进而控制电机11反转预设时长。
参照图8,作为另一种实施方式,检测部为压力检测装置68时,负载工作时长确定单元68根据压力检测装置66检测到的压力变化来确定负载工作时长。作为一种实施方式,负载工作时长确定单元67具体可以包括比较器以及计时器 或计数器,负载工作时长确定单元67获取压力检测装置68的压力检测值,负载工作时长确定单元67的比较器将所述的压力检测值与预设压力阈值进行比较,当所述的压力检测值大于或等于预设压力阈值时,负载工作时长确定单元67的计时器或计数器开始计时,直至扳机16被释放以停止计时或计数,所述计时器或计数器的结果作为负载工作时长发送给控制器61。控制器61获取所述负载工作时长确定单元67确定的负载工作时长1,并根据所述负载工作时长通过公式或查表等方式确定电机反转的预设时长,进而控制电机11反转预设时长。
所述的负载工作时长确定单元67可以是一个单独的模块,也可以内置于控制器61中,并使用控制器61中的比较器和计时器或计数器,在此并不作限制。
作为可选的实施方式,所述控制器61在所述扳机16释放后且在所述电机11反转前制动所述电机,电机11制动方法可以是本领域的常规的制动方法,在此并不做详细介绍。
参见图10,作为电动胶枪100的第三种实施方式的控制方法如下:
S100:启动电动胶枪;
将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100;
S101:获取电机电流以及扳机状态;
电流检测电路66实时检测流向电机的电流,控制器61从电流检测电路66的获取流向电机的电流;同时,扳机状态检测装置实时监测扳机状态,控制器61从扳机状态检测装置扳机状态。
S102:判断电流检测值是否大于或等于预设电流阈值以及扳机是否处于释放状态;
控制器61将获取的电流检测值与预设电流阈值进行比较,判断所述电流检测值是否大于或等于预设电流阈值;控制器61根据将检测到扳机状态检测装置的检测信号判断扳机16是否处于释放状态。如果判断电流检测值大于或等于预设电流阈值,则判断电动胶枪100发生负载工作事件;如果判断电动胶枪100发生负载工作事件且扳机处于释放状态,则转至步骤S103,否则转至步骤S101。
S103:获取电动胶枪负载工作时长;
上述负载工作时长确定单元67根据电流检测电路66检测到的电流变化来 确定负载工作时长。
作为一种实施方式,负载工作时长确定单元67具体可以包括比较器以及计时器或计数器,负载工作时长确定单元67获取电流检测电路66的电流检测值,当电流检测值大于或等于预设电流阈值时,负载工作时长确定单元67的计时器或计数器开始计时,直至扳机被释放以停止计时或计数,所述计时器或计数器的结果作为负载工作时长发送给控制器61。控制器61获取所述负载工作时长确定单元67确定的负载工作时长。
S104:确定电机反转预设时长;
控制器61根据所述负载工作时长通过公式或查表等方式确定电机11反转的预设时长。所述预设时长与所述负载工作时长正相关,即负载工作时长越长,则电机反转的预设时长就越长。通过这样的方式,动态调整电机11反转时长,使得推杆142回退距离与电动胶枪100负载工作时长正相关,可以避免推杆142回退不足仍然存在胶体溢出现象或者推杆142回退距离过长而导致推杆142或胶枪松动以及时推杆142在下次开机所走的空行程过多,浪费时间和能源。
S105:制动电机;
作为可选地,控制器61在扳机16释放后且在电机11反转前制动电机11,电机制动方法可以是本领域的常规的制动方法,在此并不做限制。
S106:电机反转预设时长;
控制器61控制电机11反转,并且在达到确定的电机反转预设时长后使电机停止驱动。
S107:断电停机。
参见图11,作为电动胶枪100的第四种实施方式的控制方法与上述电动胶枪100的第三种实施方式的控制方法类似,其区别仅在于,检测部具体为压力检测装置68而不是电流检测电路66。具体过程如下:
S110:启动电动胶枪;
将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100;将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100。
S111:获取胶瓶中的压力检测值以及扳机状态;
压力检测装置68实时检测胶瓶15中的压力。压力检测装置68具体是一个压力传感器,压力传感器安装在推杆142的前端,其能够感知推杆142的前端是否接触胶体而受到胶体的压力,控制器61从压力检测装置68获取压力传感器检测到的压力检测值;
同时,扳机状态检测装置实时监测扳机状态,控制器61从扳机状态检测装置获取扳机状态。
S112:判断压力检测值是否大于或等于预设压力阈值以及扳机是否处于释放状态;
控制器61将获得的压力检测值与预设压力阈值进行比较,判断所述电流检测值是否大于或等于预设电流阈值;控制器61根据将检测到扳机状态检测装置的检测信号判断扳机16是否处于释放状态,如果判断所述压力检测值大于或等于预设电流阈值,则判断电动胶枪100发生负载工作事件;如果判断电动胶枪100发生负载工作事件且扳机16处于释放状态,则转至步骤S113,否则转至步骤S111。
S113:获取电动胶枪负载工作时长;
上述负载工作时长确定单元67根据电流检测电路66检测到的电流变化来确定负载工作时长。
作为一种实施方式,负载工作时长确定单元67具体可以包括比较器以及计时器或计数器,负载工作时长确定单元67获取电流检测电路66的电流检测值,当电流检测值大于或等于预设电流阈值时,负载工作时长确定单元67的计时器或计数器开始计时,直至扳机被释放以停止计时或计数,所述计时器或计数器的结果作为负载工作时长发送给控制器61。控制器61获取所述负载工作时长确定单元67确定的负载工作时长。
S114:确定电机反转预设时长;
控制器61根据所述负载工作时长通过公式或查表等方式确定电机11反转的预设时长。所述预设时长与所述负载工作时长正相关,即负载工作时长越长,则电机11反转的预设时长就越长。通过这样的方式,动态调整电机11反转时 长,使得推杆142回退距离与电动胶枪100负载工作时长正相关,可以避免推杆142回退不足仍然存在胶体溢出现象或者推杆142回退距离过长而导致推杆142或胶枪松动以及时推杆142在下次开机所走的空行程过多,浪费时间和能源。
S115:制动电机;
作为可选地,控制器61在扳机16释放后且在电机11反转前制动电机11,电机制动方法可以是本领域的常规的制动方法,在此并不做限制。
S116:电机反转预设时长;
控制器61控制电机11反转,并且在达到确定的电机反转预设时长后使电机停止驱动。
S117:断电停机。
在本实施例中,电动胶枪100还包括存储器(未示出),所述的存储器可以内置于所述控制器61中,也可以是单独的一个存储芯片。所述的存储器至少存储电动胶枪100在断电前的状态,所述状态包括电动胶枪100断电前所述的速度模式和电机的转速,所述速度模式包括所述调速模式、定速模式、点动模式。
参照图12,作为电动胶枪100的第五种实施方式的控制方法,在断电前存储电动胶枪100断电前所述的速度模式和电机转速,所述速度模式包括所述调速模式和定速模式。作为电动胶枪100的第五种实施方式的控制方法如下:
S120:启动电动胶枪;
将电池包10安装至电动胶枪100,且按压扳机以启动电动胶枪100;
S121:获取负载工作事件检测结果以及扳机状态;
检测部检测负载工作事件,检测部可以是上述电流检测电路66或压力检测装置68,通过检测流向电机的电流或胶瓶中的压力来检测电动胶枪100是否负载工作或发生负载工作事件;同时,扳机状态检测装置实时监测扳机状态,控制器61从扳机状态检测装置扳机状态。
S122:判断是否发生负载工作事件以及扳机是否处于释放状态;
控制器61根据检测部检测结果判断电动胶枪100是否负载工作或发生负载工作事件;控制器61根据扳机状态检测装置的检测信号判断扳机16是否处于 释放状态。如果判断电动胶枪100发生负载工作事件且扳机16被释放,则转至步骤S103,否则转至步骤S101。
S123:获取电动胶枪负载工作时长;
上述负载工作时长确定单元67根据检测部100检测到的参量的变化来确定电动胶枪100负载工作时长,对于电流检测电路66而言,负载工作时长确定单元67根据检测到的电流变化来确定负载工作时长;对于压力检测装置68而言,负载工作时长确定单元67根据检测到的胶瓶15中的压力变化来确定负载工作时长。
在一些具体的实施例中,负载工作时长确定单元67具体可以包括比较器以及计时器或计数器。以检测部包括电流检测电路66为例,负载工作时长确定单元67获取电流检测电路66的电流检测值,当电流检测值大于或等于预设电流阈值时,负载工作时长确定单元67的计时器或计数器开始计时,直至扳机被释放以停止计时或计数,所述计时器或计数器的结果作为负载工作时长发送给控制器61。控制器61获取所述负载工作时长确定单元67确定的负载工作时长。
S124:确定电机反转预设时长;
控制器61根据所述负载工作时长通过公式或查表等方式确定电机11反转的预设时长。所述预设时长与所述负载工作时长正相关,即负载工作时长越长,则电机11反转的预设时长就越长。通过这样的方式,动态调整电机11反转时长,使得推杆142回退距离与电动胶枪100负载工作时长正相关,可以避免推杆142回退不足仍然存在胶体溢出现象或或者推杆142回退距离过长而导致推杆142或胶枪松动以及时推杆142在下次开机所走的空行程过多,浪费时间和能源。
S125:制动电机;
作为可选地,控制器61在扳机16释放后且在电机11反转前制动电机11,电机制动方法可以是本领域的常规的制动方法,在此并不做限制。
S126:电机反转预设时长;
控制器61控制电机11反转,并且在达到确定的电机反转预设时长后使电机11停止驱动。
S127:存储电动胶枪状态;
在电100动胶枪断电之前,存储电动胶枪100的状态,所述状态包括速度模式以及电机转速,所述速度模式包括调速模式和定速模式。
S128:断电停机。
参照图113,作为电动胶枪100的第六种实施方式的控制方法,在启动的输出阶段使电动胶枪100恢复断电前的状态,然后再按照上述第一或第二或第三或第四或第五实施方式的控制方法控制电动胶枪100的操作过程,所述的电动胶枪100的第六种实施方式的控制方法包括如下内容:
从存储器读取电动胶枪100断电前的状态;
获取所述轻触开关的状态;
当所述轻触开关为第一状态时,使电动胶枪按照上次断电前的状态运行直至轻触开关被触发为第二状态时,使电动胶枪100按照当前设置状态运行。
参照图13,上述电动胶枪100的第六种实施方式的控制方法具体包括如下内容:
S131:读取电动胶枪100上次断电前的状态;
上接步骤A,电动胶枪100启动后,控制器61从存储器读取电动胶枪100上次断电前的状态,所述状态包括电动胶枪100断电前速度模式和电机转速,所述速度模式包括所述调速模式和定速模式。
S132:判断上次断电前的状态电动胶枪100是否处于调速模式;
控制器61从存储器读取电动胶枪100上次断电前的状态,并判断上次断电前的状态电动胶枪100是否处于调速模式,如果是,则转至步骤S133,否则转至步骤S136。
S133:电动胶枪100进入调速模式;
当控制器61从存储器读取电动胶枪100上次断电前处于调速模式时,控制电动胶枪100进入调速模式,电动胶枪100的速度由扳机的勾动量来控制。
S134:判断轻触开关是否被触发;
当控制器61根据开关状态检测装置的检测结果,判断轻触开关20状态是 否被触发,如果是,则转至步骤S136,否则转至步骤S135。
S135:电动胶枪100调速出胶;
当控制61判断轻触开关20未被触发,控制器61控制电动胶枪继续处于调速模式,电动胶枪100的速度由扳机的勾动量来控制。
S136:电动胶枪100进入定速模式;
当控制器61从存储器读取电动胶枪100上次断电前处于定速模式时,则控制电动胶枪100进入定速模式,电动胶枪100的输出恒定功率,此时,控制器61控制电机11按照上次断电前的速度运转或轻触开关20被触发前的速度运转。
当轻触开关20已经被触发过后,则控制器61控制电机11按照轻触开关20被触发前的速度运转。
当轻触开关20未被触发时,则控制电机按照上次断电前的速度运转。
S137:判断轻触开关是否被触发;
当控制器61根据开关状态检测装置的检测结果,判断轻触开关20状态是否被触发,如果是,则转至步骤S133,否则转至步骤S138。
S138:电动胶枪100恒速出胶;
当控制61判断轻触开关20未被触发,控制器61控制电动胶枪继续处于定速模式,电动胶枪100的输出恒定功率,电机转速按照上次断电前或轻触开关20被出发前的速度运转,不受扳机16的勾动量控制。
S139:转至步骤B。
通过设置上述存储器,可以记录电动胶枪100断电前的状态,从而在电动胶枪100工具断电后再次启动时,电动胶枪100仍然可以断电前的状态运行,这样对于同一批工作对象而言,电机11以经过调速后的较佳的同一转速运行,电动胶枪100可以较佳的同一输出功率作业,能够保证较一致和较佳的工作效果,还可以避免电动胶枪100断电后再调速的麻烦。
本公开还提供一种电动胶枪,一种电动胶枪,包括:壳体;电机,由所述壳体支撑;支架,从所述壳体延伸,所述支架用于支撑胶瓶;推出机构,由所述壳体支撑并连接至电机,由所述电机驱动以挤出胶瓶中的胶体;所述推出机 构包括推杆,所述推杆可沿第一方向移动和第二方向移动;操作机构,由所述壳体支撑并至少可沿一个方向移动,所述操作机构可被操作,且至少包括使所述电机停止驱动的操作状态;检测部,可操作地检测所述电动胶枪的负载工作事件;控制器,与所述电机和所述操作机构连接,所述控制器被配置为:根据所述检测部的检测结果以及所述操作机构的操作状态判断所述电动胶枪是处于第一停机模式还是第二停机模式;在所述电动胶枪处于第一停机模式时,控制所述电机以使所述推杆回退预定距离;在所述电动胶枪处于第二停机模式时,控制所述电机以使所述推杆不回退。
进一步地,在所述检测部检测到负载工作事件并且在所述操作机构处于使所述电机停止驱动的所述操作状态时,所述控制器判断所述电动胶枪处于第一停机模式;在所述检测部未检测到负载工作事件并且在所述操作机构处于使所述电机停止驱动的所述操作状态时,所述控制器判断所述电动胶枪处于第二停机模式。所述检测部按照上述实施方式中的检测部实施。
需要说明的是,在本公开中电动胶枪100可以不包括上述位于电动胶枪100的操作机构,也就是说,使电机停止驱动的信号不限于来自外部用户输入,还可以来自电动胶枪100内部的电信号,例如,控制器61在检测到某一参数发生变化或达到临界值后,需要停止打胶工作。例如,电动胶枪100检测到电池包温度过高或出于欠压状态等,则控制器61停止输出使电机运行的信号,电机停止驱动。
综上所述,本公开的电动胶枪100至少具有以下有益效果:
电动胶枪在检测到扳机被释放时,控制电机反转预设时长,以使推杆回退一定距离,防止扳机被释放而停止出胶后胶体仍然继续流出或渗出胶枪的喷嘴,造成胶体的浪费以及喷嘴污垢,本公开的电动胶枪可以有效避免扳机释放后胶体溢出;
通过检测电动胶枪是否发生了负载工作事件(即,是否进行了打胶工作),在检测到发生负载工作事件时才使推杆回退一定距离使得胶体不会溢出,而在未检测到打胶时,则使推杆不回退,减少不必要的操作,简便操作的同时也能节约能源;
根据出胶时长调节推杆回退的距离,使推杆回退的距离与打胶时长正相关, 这样可以避免打胶时长不同时按照固定设置的距离的回退,可能导致回退距离不足仍然存在会滴胶的情况,或者回退距离过长而导致胶枪松动以及时推杆在下次开机所走的空行程过多,浪费时间和能源;
通过设置调速器实现电动胶枪不同功率的输出,从而满足不同工况的需求;同时,通过设置输出功率上限的控制机构,其可以设置有多个档位,可以实现电动胶枪在多个档位下的变速调节,并且每个档位设置输出功率上限,电机在所述多个档位下具有不同的最高转速,避免用户勾动扳机量过大而出现不期望的过大的输出功率和电机转速,方便用户操作,安全性好;同时,多个档位的设置对应不同的调速范围,使得用户根据不同需求要选择不同调速范围,方便操作;
通过设置调速模式、定速模式和点动模式,可满足用户不同的需求。在调速模式下根据扳机的勾动量确定电机转速,方便用户使用;在定速模式下,电机可以在一个档位下维持固定速度,这样,可以避免用户一直按着扳机较吃力且不方便,以及可能用户手出现抖动导致速度不稳定,以至于出胶部均匀,影响工作质量;在点动模式下,所述电机每间隔预设时长输出转速,电动胶枪间隔预设时长出胶,可以在避免一直出胶,减少不必要的浪费;
通过设置的具有断电存储功能的存储器,可以记录电动胶枪断电前的状态,从而在电动胶枪工具断电后再次启动时,电动胶枪仍然可以断电前的状态运行,这样对于同一批工作对象而言,电机可以同一转速运行,能够保证电动胶枪较一致和较佳的工作效果,还可以避免电动胶枪断电后再调速的麻烦。
以上显示和描述了本公开的基本原理、主要特征和优点。本行业的技术人员应该了解,上述实施例不以任何形式限制本公开,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本公开的保护范围内。
工业实用性
本公开提供了一种电动胶枪及其控制方法,可以实现电动胶枪停止打胶后,防止胶体继续流出喷嘴,造成胶体浪费以及喷嘴污染。

Claims (43)

  1. 一种电动胶枪,包括:
    壳体;
    电机,由所述壳体支撑;
    支架,从所述壳体延伸,所述支架用于支撑胶瓶;
    推出机构,由所述壳体支撑并连接至电机,由所述电机驱动以挤出胶瓶中的胶体;所述推杆机构包括推杆,所述推杆可沿第一方向移动和第二方向移动;
    操作机构,由所述壳体支撑并至少可沿一个方向移动,所述操作机构可被操作,且至少包括使所述电机停止驱动的操作状态;
    检测部,用于检测所述电动胶枪的负载工作事件;
    控制器,与所述电机和所述操作机构连接,所述控制器被配置为:根据所述检测部的检测结果判断所述电动胶枪是否发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述操作机构处于使所述电机停止驱动的所述操作状态时,控制所述电机反转以使所述推杆回退预定距离。
  2. 根据权利要求1所述的电动胶枪,其特征在于:所述控制器被配置为在所述电动胶枪未发生负载工作事件,在所述操作机构处于使所述电机停止驱动的所述操作状态时,控制所述电机使所述推出不回退。
  3. 根据权利要求1所述的电动胶枪,其特征在于:所述检测部为一个检测电路,所述检测电路独立于所述控制器。
  4. 根据权利要求1所述的电动胶枪,其特征在于:所述控制器包括所述检测部。
  5. 根据权利要求1所述的电动胶枪,其特征在于:所述控制器还被配置为在所述电机反转之前制动所述电机。
  6. 根据权利要求1所述的电动胶枪,其特征在于:所述检测部包括电流检测电路,用于检测流向所述电机的电流,其输出端与所述控制器连接;所述控制器还被配置为将所述电流检测电路的检测结果与预设电流阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件。
  7. 根据权利要求6所述的电动胶枪,其特征在于:在所述电流检测电路的电流检测值大于或等于预设电流阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
  8. 根据权利要求1所述的电动胶枪,其特征在于:所述检测部包括压力检测装置,用于检测所述胶瓶中的压力,其输出端与所述控制器连接;所述控制器被配置为将所述压力检测装置的检测结果与预设压力阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件。
  9. 根据权利要求8所述的电动胶枪,其特征在于:在所述压力检测装置的压力检测值大于或等于预设压力阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
  10. 根据权利要求1所述的电动胶枪,其特征在于:所述电动胶枪还包括负载工作时长确定单元,用于确定所述电动胶枪负载工作时长;所述控制器被配置为根据所述电动胶枪负载工作时长调整所述推杆的回退距离。
  11. 根据权利要求10所述的电动胶枪,其特征在于:所述电动胶枪负载工作时长与所述推杆的回退距离呈正相关关系。
  12. 根据权利要求1所述的电动胶枪,其特征在于:
    所述电动胶枪具有调速模式,所述控制器被配置为在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速。
  13. 根据权利要求12所述的电动胶枪,其特征在于:所述电动胶枪还具有定速模式;所述控制器被配置为在所述电动胶枪处于所述定速模式时,控制所述电机输出固定转速。
  14. 根据权利要求13所述的电动胶枪,其特征在于:所述电动胶枪还具有点动模式,所述控制器被配置为在所述电动胶枪处于所述点动模式时,控制所述电机每间隔第一预设时长运行第二预设时长。
  15. 根据权利要求14所述的电动胶枪,其特征在于:所述电动胶枪还包括:轻触开关,可操作地被触发以使所述电动胶枪在所述调速模式、定速模式和点动模式之间切换。
  16. 根据权利要求1所述的电动胶枪,其特征在于:所述电动胶枪还包括调档开关,所调档开关设置有多个档位,所述电机在所述多个档位下具有不同的最高转速。
  17. 根据权利要求1所述的电动胶枪,其特征在于:所述电动胶枪还包括存储器,所述存储器用于至少存储所述电动胶枪断电前的状态。
  18. 根据权利要求1所述的电动胶枪,其特征在于:所述控制器还被配置为:获取所述电动胶枪断电前的状态;控制所述电机按照所述电动胶枪断电前的状态运行。
  19. 根据权利要求18所述的电动胶枪,其特征在于:所述电动胶枪断电前的状态包括电机转速和速度模式,所述速度模式包括调速模式、定速模式或点动模式。
  20. 一种如权利要1所述的电动胶枪的控制方法,包括:
    获取所述检测部的检测结果;
    根据所述检测部的检测结果判断所述电动胶枪是否发负载工作事件;
    获取所述操作机构的操作状态;
    根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;
    在判断所述电动胶枪发生负载工作事件且在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。
  21. 一种如权利要1所述的电动胶枪的控制方法,包括:
    获取流向所述电机的电流;
    在流向所述电机的电流大于或等于预设电流阈值时,判断所述电动胶枪发生负载工作事件;
    获取所述操作机构的操作状态;
    根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;
    在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。
  22. 一种如权利要1所述的电动胶枪的控制方法,包括:
    获取检测所述胶瓶中的压力;
    在所述胶瓶中的压力大于或等于预设压力时,判断所述电动胶枪发生负载工作事件;
    获取所述操作机构的操作状态;
    根据所述操作机构的状态判断所述操作机构是否处于使所述电机停止驱动的操作状态;
    在判断所述电动胶枪发生负载工作事件且在在所述操作机构处于使所述电机停止驱动的操作状态时,控制所述电机反转以使所述推杆回退预定距离。
  23. 一种如权利要20至22任意一项所述的电动胶枪的控制方法,其特征在于:所述控制方法还包括获取所述电动胶枪负载工作时长,所述推杆回退的预定距离与所述电动胶枪负载工作时长呈正相关关系。
  24. 一种电动胶枪,包括:
    壳体;
    电机,由所述壳体支撑;
    推出机构,由所述壳体支撑并连接至电机,所述推出机构用于安装胶瓶并挤出胶体;
    检测部,用于检测所述电动胶枪的负载工作事件;
    控制器,与所述电机连接,所述控制器被配置为:根据所述检测部的检测结果判断所述电动胶枪是否发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
  25. 根据权利要求24所述的电动胶枪,其特征在于:所述检测部为一个独立于所述控制器的检测电路或所述控制器包括所述检测部。
  26. 根据权利要求24所述的电动胶枪,其特征在于:所述检测部包括电流检测电路,用于检测流向所述电机的电流,其输出端与所述控制器连接;所述控制器还被配置为:将所述电流检测电路的检测结果与预设电流阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述电流检测电路的电流检测值大于或等于预设电流阈值时,所述控制器判断所述电动胶 枪发生负载工作事件。
  27. 根据权利要求24所述的电动胶枪,其特征在于:所述检测部包括压力检测装置,用于检测所述胶瓶中的压力,其输出端与所述控制器连接;所述控制器被配置为:将所述压力检测装置的检测结果与预设压力阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述压力检测装置的压力检测值大于或等于预设压力阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
  28. 根据权利要求24所述的电动胶枪,其特征在于:所述电动胶枪还包括负载工作时长确定单元,用于确定所述电动胶枪负载工作时长;所述控制器被配置为根据所述电动胶枪负载工作时长调整所述推出机构的回退距离。
  29. 根据权利要求24所述的电动胶枪,其特征在于:所述电动胶枪负载工作时长与所述推出机构的回退距离呈正相关关系。
  30. 根据权利要求24所述的电动胶枪,其特征在于:所述电动胶枪具有调速模式,所述控制器被配置为在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速。
  31. 根据权利要求24所述的电动胶枪,其特征在于:所述电动胶枪具有调速模式和/或定速模式;所述控制器被配置为在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速;所述控制器还被配置为在所述电动胶枪处于所述定速模式时,控制所述电机输出固定转速。
  32. 根据权利要求24所述的电动胶枪,其特征在于:所述电动胶枪具有调速模式和/或定速模式和/或点动模式,所述控制器被配置为:在所述电动胶枪处于所述调速模式时,根据所述操作机构的操作量控制所述电机输出不同转速; 在所述电动胶枪处于所述定速模式时,控制所述电机输出固定转速;在所述电动胶枪处于所述点动模式时,控制所述电机每间隔第一预设时长运行第二预设时长。
  33. 根据权利要求31或32所述的电动胶枪,其特征在于:所述电动胶枪还包括轻触开关,所述轻触开关可被操作地使所述电动胶枪切换到所述调速模式和/或定速模式和/或点动模式。
  34. 一种如权利要24所述的电动胶枪的控制方法,包括:
    获取所述检测部的检测结果;
    根据所述检测部的检测结果判断所述电动胶枪是否发负载工作事件;
    在判断所述电动胶枪发生负载工作事件且所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
  35. 一种如权利要24所述的电动胶枪的控制方法,包括:
    获取流向所述电机的电流;
    在流向所述电机的电流大于或等于预设电流阈值时,判断所述电动胶枪发生负载工作事件;
    在判断所述电动胶枪发生负载工作事件且在所述电机停止驱动后,控制所述电机反转以使所述推出机构回退预定距离。
  36. 一种如权利要24所述的电动胶枪的控制方法,包括:
    获取检测所述胶瓶中的压力;
    在所述胶瓶中的压力大于或等于预设压力时,判断所述电动胶枪发生负载工作事件;
    在判断所述电动胶枪发生负载工作事件且在所述电机停止驱动后,控制所 述电机反转以使所述推出机构回退预定距离。
  37. 一种如权利要34至36任意一项所述的电动胶枪的控制方法,其特征在于:所述控制方法还包括获取所述电动胶枪负载工作时长,所述推出机构回退的预定距离与所述电动胶枪负载工作时长呈正相关关系。
  38. 一种电动胶枪,包括:
    壳体;
    原动机,由所述壳体支撑;
    推出机构,由所述壳体支撑并连接至原动机,所述推出机构用于安装胶瓶并挤出胶体;
    检测部,用于检测所述电动胶枪的负载工作事件;
    控制器,与所述原动机连接,所述控制器被配置为:根据所述检测部的检测结果判断所述电动胶枪是否发生负载工作事件;在判断所述电动胶枪发生负载工作事件且在所述原动机停止驱动后,控制所述原动机以使所述推出机构回退预定距离。
  39. 根据权利要求38所述的电动胶枪,其特征在于:所述检测部为一个独立于所述控制器的检测电路或所述控制器包括所述检测部。
  40. 根据权利要求38所述的电动胶枪,其特征在于:所述检测部包括电流检测电路,用于检测流向所述原动机的电流,其输出端与所述控制器连接;所述控制器还被配置为:将所述电流检测电路的检测结果与预设电流阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述电流检测电路的电流检测值大于或等于预设电流阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
  41. 根据权利要求38所述的电动胶枪,其特征在于:所述检测部包括压力检测装置,用于检测所述胶瓶中的压力,其输出端与所述控制器连接;所述控制器被配置为:将所述压力检测装置的检测结果与预设压力阈值进行比较,并根据所述比较结果判断所述电动胶枪是否发生负载工作事件;在所述压力检测装置的压力检测值大于或等于预设压力阈值时,所述控制器判断所述电动胶枪发生负载工作事件。
  42. 根据权利要求38所述的电动胶枪,其特征在于:所述电动胶枪还包括负载工作时长确定单元,用于确定所述电动胶枪负载工作时长;所述控制器被配置为根据所述电动胶枪负载工作时长调整所述推出机构的回退距离。
  43. 根据权利要求442所述的电动胶枪,其特征在于:所述电动胶枪负载工作时长与所述推出机构的回退距离呈正相关关系。
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