CN114377921A - Electric glue gun - Google Patents
Electric glue gun Download PDFInfo
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- CN114377921A CN114377921A CN202011107373.0A CN202011107373A CN114377921A CN 114377921 A CN114377921 A CN 114377921A CN 202011107373 A CN202011107373 A CN 202011107373A CN 114377921 A CN114377921 A CN 114377921A
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- Prior art keywords
- push rod
- speed
- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/0103—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like with electrically actuated piston or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/0116—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like characterised by the piston driving means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses an electric glue gun, comprising: a housing; a glue container supported at the front end of the housing; the power mechanism comprises a motor for providing power for the tool; the transmission mechanism comprises a push rod assembly connected with the glue container, and the push rod assembly is driven by the power mechanism to move; the control mechanism is electrically connected with the motor to control the motor to operate; the transmission mechanism further comprises a speed change component which is in transmission connection with the push rod component and the motor, and the speed change component has different transmission states which enable the push rod component to output different speeds; the electronic rifle of gluing still includes state switching mechanism, includes: a control switch operable to change a state of the control switch, the control switch being electrically connected to the control mechanism, the control mechanism controlling the motor to shift a rotational direction and the transmission assembly to switch the transmission state when the state of the control switch is changed.
Description
Technical Field
The invention relates to an electric tool, in particular to an electric glue gun.
Background
The electric glue gun is generally set to rotate by a motor to drive a screw rod, the screw rod is supported in a screw rod nut to rotate and moves linearly relative to the screw rod nut, so that glue is extruded from a binder in a glue container, and a push rod is generally manually driven to retreat and reset after glue is applied, or the motor is controlled to reversely rotate and reset. However, in the existing electric glue gun, the output speed of the push rod cannot be adjusted, and the advancing speed is slow for meeting the glue beating requirement, so that the retreating speed of the glue gun is also slow when the glue gun retreats and resets, a user needs to wait for a long time to realize the complete reset of the push rod, and the use experience of the user cannot be influenced by the quick reset.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an electric glue gun capable of adjusting the speed according to the use state.
In order to achieve the above object, the present invention adopts the following technical solutions:
an electric glue gun comprising:
a housing;
a glue container supported at the front end of the housing;
the power mechanism comprises a motor for providing power for the tool;
the transmission mechanism comprises a push rod assembly connected with the glue container, and the push rod assembly is driven by the power mechanism to move;
the control mechanism is electrically connected with the motor to control the motor to operate;
the transmission mechanism further comprises a speed change component which is in transmission connection with the push rod component and the motor, and the speed change component has different transmission states which enable the push rod component to output different speeds;
the electronic rifle of gluing still includes state switching mechanism, includes:
a control switch operable to change a state of the control switch, the control switch being electrically connected to the control mechanism; when the state of the control switch is changed, the control mechanism controls the motor to change the rotating direction and the speed change assembly to switch the transmission state.
Further, the transmission assembly includes a first transmission state causing the push rod assembly to output a first speed and a second transmission state outputting a second speed, the second speed being higher than the first speed;
when the control switch is triggered, the control mechanism controls the motor to rotate reversely and the speed change component is switched to the second transmission state.
Further, the transmission assembly includes a first transmission state causing the push rod assembly to output a first speed and a second transmission state outputting a second speed, the second speed being higher than the first speed;
when the contact of the control switch is released, the control mechanism controls the motor to rotate reversely and the speed change component is switched to the second transmission state.
Further, the state switching mechanism further comprises an operating member operable by a user to drive the control switch to change states.
Further, the state switching mechanism further includes a biasing force member that applies a biasing force to the operating member so as to be in an initial position.
Further, the transmission assembly includes:
a housing;
the planetary gear train is arranged in the shell around a central axis and comprises at least one movable gear ring and a locking piece which can be locked with the movable gear ring, the movable gear ring can move to a locking position along a direction parallel to the central axis, and the locking piece locks the movable gear ring positioned at the locking position to limit the rotation of the movable gear ring;
the state switching mechanism further comprises a switching piece for switching the position of the movable gear ring, and the switching piece is in transmission connection with the operating piece and the movable gear ring.
Further, the switch includes:
the switching part penetrates through the shell and is connected with the movable piece;
a driven part connected with the operating part;
and a rotation support portion located between the switching portion and the driven portion, the rotation support portion being rotatably connected to the housing.
Further, the speed change assembly is a control circuit board which is electrically connected with the control switch and the motor respectively, and the control circuit board adjusts the running speed of the motor when the state of the control switch is changed.
Furthermore, electronic gluey rifle still includes stop gear, stop gear with control mechanism electricity is connected in order to restrict the forward extreme position and the extreme position of retreating of push rod subassembly.
Further, stop gear includes:
the first limiting assembly comprises a first Hall element arranged at the front end of the shell and a first magnetic part arranged at the front part of the push rod assembly;
the second limiting assembly comprises a second Hall element arranged at the rear end of the shell and a second magnetic part arranged at the rear part of the push rod assembly;
the first Hall element and the second Hall element are respectively and electrically connected with the control mechanism.
Furthermore, the push rod assembly comprises a push rod in transmission connection with the transmission mechanism, and the first magnetic part and the second magnetic part are magnetic rings sleeved on the push rod or magnetic blocks embedded in the push rod.
The invention has the advantages that:
the electric glue gun can simultaneously control the motor to rotate reversely by operating the operating piece, and the speed change component is switched to a second transmission state at a high speed, in other words, the moving direction and the moving speed of the push rod component can be simultaneously changed by the operating action of the operating piece. The low-speed glue injection device is simple in operation and reasonable in arrangement, realizes low-speed glue injection and high-speed retreat, can meet the normal glue injection requirement and realize quick reset of the push rod when reset, and is favorable for improving the use experience of users.
Drawings
FIG. 1 is a front view of the electric glue gun of the present invention;
FIG. 2 is a rear view of the electric glue gun of FIG. 1;
FIG. 3 is a front view of the electric glue gun of FIG. 1 after the housing has been opened;
FIG. 4 is a schematic view of the transmission mechanism and the state switching mechanism in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural view of the shift assembly of FIG. 4;
FIG. 6 is a schematic illustration of the shift assembly illustrated in FIG. 5 in a first transmission state;
FIG. 7 is a schematic view of the transmission mechanism and the state switching mechanism in accordance with another embodiment of the present invention;
FIG. 8 is a schematic view of the shift assembly shown in FIG. 7 in a first transmission state;
fig. 9 is a schematic structural view of the limiting mechanism of the present invention.
Description of reference numerals:
100-glue gun; 110-a housing;
200-an output mechanism; 210-a glue container;
300-a power mechanism;
400-a control mechanism;
510-a screw rod; 520-a push plate; 530-a transmission assembly; 5301-a central axis; 531-movable gear ring; 5311-a tooth; 5312-an annular groove; 532-a locking member; 533-first ring gear;
540-a housing;
610-a control switch; 611-a trigger;
620-an operating member;
630-a switch; 631-a driven part; 632-a switching section; 633-a rotation support;
711-a first hall element; 712-a first magnetic element; 721-a second hall element; 722-a second magnetic element;
800-a battery pack;
900-switching assembly.
Detailed Description
Fig. 1-3 show an electric glue gun 100 of the present invention for hand-held gluing. The glue gun 100 includes a housing 110, an output mechanism 200, a power mechanism 300, a control mechanism 400, and a transmission mechanism.
Referring to fig. 1, the output mechanism 200 is disposed at the front end of the housing 110, the transmission mechanism is in transmission connection with the motor 300 and the output mechanism 200, the output mechanism 200 includes a glue container 210, and the glue container 210 stores a binder therein. The power mechanism 300 provides power to the electric glue gun 100, and the power mechanism 300 according to the embodiment of the present invention is specifically a motor.
Referring to fig. 4, the transmission mechanism includes a push rod assembly, the push rod assembly in this embodiment includes a lead screw 510 and a push plate 520, wherein the lead screw 510 extends in a front-back direction, the lead screw 510 is connected with the output mechanism 200, specifically, the push plate 520 is fixedly disposed at a front end of the lead screw 510, the push plate 520 moves back and forth along with the axial direction of the lead screw 510, and the push rod assembly performs a forward movement when a glue-applying operation is normally performed; when the push rod needs to be reset and the glue container needs to be replaced, the push rod assembly retreats to the initial position.
As shown in fig. 4, the transmission mechanism in this embodiment of the present invention is drivingly connected to the motor and the push rod assembly, wherein the speed changing assembly 530 has different transmission states for enabling the push rod assembly to output different speeds, and specifically, the speed changing assembly includes a first transmission state and a second transmission state, wherein in the first transmission state, the speed changing assembly 530 drives the push rod assembly to output a first speed, and in the second transmission state, the speed changing assembly 530 drives the push rod assembly to output a second speed, and the second speed is higher than the first speed; in other words, the speed change assembly 530 can change the output speed of the push rod assembly by changing its transmission state.
As shown in fig. 4-5, the speed change assembly 530 is embodied as a gear box, which comprises a housing 540 and a planetary gear train arranged in the housing 540, wherein the planetary gear train in this embodiment is arranged in the housing 540 around a central axis 5301, the planetary gear train comprises at least one movable gear ring 531 and a locking member 532 lockable therewith, wherein the movable gear ring 531 is operable to move in a direction parallel to the central axis 5301 to a locking position shown in fig. 6, the locking member 532 is locked to the movable gear ring 531 in the locking position to restrict rotation of the movable gear ring 531, and when the movable gear ring 531 is in the locking position shown, the speed change assembly 530 is in a first transmission state, i.e. the push rod assembly moves at a low speed.
Specifically, the planetary gear train includes a first planetary gear train including a first ring gear 533 and a plurality of planetary gears provided in the first ring gear to be engaged therewith, a second planetary gear train including a movable ring gear 531 and a plurality of planetary gears engaged therewith, in other words, the movable ring gear 531 constitutes an inner gear ring of the second planetary gear train, and a third planetary gear train, wherein as shown in fig. 6; the third planetary gear train also includes a third inner gear ring and a plurality of planet gears, wherein in the present embodiment, a plurality of tooth portions 5311 are disposed at an axial end portion of the movable gear ring 531 close to the first inner gear ring 533, and correspondingly, the locking member 532 includes a plurality of locking teeth formed at an axial end portion of the first inner gear ring 533 close to the movable gear ring 531; axial gaps allowing the tooth portions 5311 to be inserted are formed among the locking teeth, the tooth portions 5311 are locked with the locking teeth after entering the gaps, and therefore the rotation of the movable gear ring 531 around the central axis 5301 is limited, namely when the movable gear ring 531 is located at the locking position, the gear ring in the second layer is in a fixed state, at the moment, the second planetary gear train performs a speed reduction function, the speed change assembly 530 is in the first transmission state, and the push rod assembly is in low-speed operation; when the movable gear ring 531 moves to the left side in fig. 6 and is separated from the locking position, the movable gear ring 531 and the first gear ring 533 are unlocked, the movable gear ring 531 is in a free rotation state, the second planetary gear train is disabled at this time, no speed reduction is performed, the speed change assembly 530 is in a second transmission state, and the push rod assembly is in high-speed operation.
As shown in fig. 4-6, the electric glue gun further comprises a state switching mechanism for switching the state of the transmission assembly, wherein the state switching mechanism comprises a control switch 610, an operating member 620 and a switching member 630, wherein the operating member 620 comprises a first position and a second position for sliding movement along the housing 110, the second position is located in front of the first position, and wherein the left side along the axis 5301 in fig. 6 is front and the right side is back. The switching member 630 is drivingly connected to the operating member 620 and the movable ring gear 531, and is used to convert the movement of the operating member 620 into position switching of the movable ring gear 531.
Referring to fig. 5, the switching member 630 is a U-shaped bracket, and includes a middle connecting arm and two end arms respectively connected to two sides of the connecting arm, wherein the middle of the connecting arm is clamped in the clamping slot inside the operating member 620 to form a driven part 631, and the driven part 631 can move along with the operating member 620; since the end portions of the both end arms are connected to the movable ring gear 531 after passing through the housing 540, the free end portions of the both end arms constitute the switching portions 632 for switching the position of the movable ring gear 531, respectively, and the driven portion 631 is positioned between the pair of switching portions 632. Each end arm is further provided with a rotation support portion 633, as shown in fig. 5, the rotation support portion 633 in this embodiment is a bent portion on the end arm, or may also be a protrusion extending from the end arm; the rotation support 633 is located between the switching part 632 and the driven part 631, and the rotation support 633 is used for being rotatably connected with the housing 540 to support the rotation of the switching member 630. Specifically, referring to fig. 4, the housing 540 is provided with an opening for allowing the switch portion 632 to enter, and the outer circumferential surface of the housing 540 is further provided with a groove provided corresponding to the rotation support portion 633, as shown in fig. 6, the movable ring gear 531 is provided with an annular groove 5312 for allowing the switch portion 632 of the end arm to enter and engage therewith, and the annular groove 5312 is an annular groove extending along the outer circumference of the movable ring gear 531.
The operating member 620 is operable by a user to activate or deactivate the control switch 610, thereby changing the state of the control switch 610, and when the state of the control switch 610 is changed, the control mechanism 400 controls the motor to change the rotational direction while the speed changing assembly 530 switches its transmission state. Wherein the speed change assembly 530 includes a first transmission state causing the push rod assembly to output a first speed and a second transmission state causing the push rod assembly to output a second speed, the second speed being higher than the first speed.
Wherein the control switch 610 is a signal switch, and when the state of the signal switch is changed, it sends a control signal to the control mechanism 400, and the control mechanism 400 controls the motor to rotate reversely, thereby triggering the backward movement of the push rod assembly. Referring to fig. 5-8, the control switch 610 has a triggerable trigger 611, which may be a spring or a contact, wherein the change of state of the signal switch in the present invention includes changing the trigger 611 from a free release state to a pressed trigger state or changing the trigger from the pressed state to a released state.
The state switching mechanism further includes a biasing member, specifically a spring, for applying a biasing force to the operating member 620 so as to be in an initial position, where the initial position refers to a position where the operating member 620 does not trigger the control switch 610, that is, a position where the operating member 620 is not operated.
When the control switch 610 is not operated, the movable gear ring 531 keeps locked by the first gear ring 533, at this time, the movable gear ring 531 is in a fixed state, the second planetary gear train is decelerated and works, the deceleration assembly 530 is in the first transmission state, and the push rod assembly outputs the first speed.
As shown in fig. 4 to 6, the control switch 610 in this embodiment is disposed at the rear side of the operating member 620, or may be disposed on the path of the operating member 620 retreating, when the control switch 610 is not operated, the movable ring gear 531 keeps locked by the first ring gear 533, the movable ring gear 531 is in a fixed state, the second planetary gear train decelerates to function, the deceleration assembly 530 is in the first transmission state, and the push rod assembly outputs the first speed.
When the operating member 620 is operated to back the trigger operating member 620, the control mechanism 400 is configured to control the motor to rotate in reverse when receiving the trigger signal of the control switch 610; meanwhile, as the operating element 620 moves backwards, the driven part 631 of the switching element 630 moves backwards along with the operating element 620, so that the switching part 632 of the switching element 630 moves forwards, the movable gear ring 531 is driven to move in a direction away from the first gear ring 533, and finally the locking of the locking element 532 on the first gear ring 533 to the movable gear ring 531 is released, the movable gear ring 531 can freely rotate without speed reduction, and thus the gear shift assembly 530 is switched to the second transmission state and the push rod assembly outputs the second speed.
The biasing member (not shown in the drawings) in this embodiment applies a biasing force to the operating member 620 to bring the operating member 620 to an initial position, and it will be understood that the spring constituting the biasing member 620 has one end fixedly connected to the housing and the other end fixedly connected to the operating member 620, wherein the operating member 620 includes a first position at the front (left side in fig. 6) and a second position at the rear (right side in fig. 6), and the initial position in this embodiment refers to the first position of the operating member 620 when the operating member 620 is not operated, i.e., the first position in fig. 6.
As shown in fig. 2 and 6, the operating member 620 in the present embodiment is a toggle button that can be toggled back and forth along the side surface of the housing 110, the control switch 610 is a signal switch that has a trigger 611 that can be triggered, and the operating member 620 is configured to directly trigger the control switch 610 during movement, but it is also possible to provide other linkage mechanisms, such as a link mechanism, that can trigger the control switch 610 in linkage with the movement of the operating member.
7-8, in another alternative embodiment, the control switch 610 is disposed at the front side of the operation member 620, or may be disposed on the path of the operation member 620, in this embodiment, the operation member 620 is a toggle button that can be toggled back and forth along the bottom of the housing 110, and similarly, when the operation member 620 is operated to retract, the control switch 610 is turned off, and the control mechanism 400 is configured to receive a signal that the control switch 610 is released, and control the motor to rotate reversely; meanwhile, as the operating element 620 moves backwards, the driven part 631 of the switching element 630 moves backwards along with the operating element 620, so that the switching part 632 of the switching element 630 moves forwards, the movable gear ring 531 is driven to move in a direction away from the first gear ring 533, and finally the locking of the locking element 532 on the first gear ring 533 to the movable gear ring 531 is released, the movable gear ring 531 can freely rotate without speed reduction, and thus the gear shift assembly 530 is switched to the second transmission state and the push rod assembly outputs the second speed.
In this embodiment, the motor rotation speed has a maximum rotation speed, and when the motor is moving forward, the motor rotation speed is set to be less than the maximum rotation speed, and when the motor is moving backward, the motor rotation speed is set to be backward at the maximum rotation speed, for example, the maximum rotation speed of the motor is 25000RPM, the motor rotation speed when the screw rod is moving forward can be set to 10000RPM, and the motor rotation speed when the screw rod is backward can be set to 25000 RPM. The above data are for example only and the motor speed is not limited to the above range.
The biasing member (not shown) in this embodiment applies a biasing force to the operating member 620 to bring the operating member 620 to an initial position, it being understood that the spring forming the biasing member 620 is fixedly connected to the housing at one end and to the operating member 620 at the other end, wherein the operating member 620 includes a first position at the front and a second position at the rear, the initial position in this embodiment referring to the second position where the operating member 620 is located at the rear and the operating member 620 is located at the first position as shown in fig. 8.
Referring to fig. 3, the electric glue gun according to the embodiment of the present invention further includes a battery pack 800 and a switch assembly 900, wherein the battery pack 800 is used to provide power to the motor. The switch assembly 900 in the embodiment of the present invention is a knob switch, the switch assembly 900 is connected to the power mechanism 300 through the control mechanism 400, and the knob can control the power mechanism 300 to be turned on or off through the control mechanism 400.
As shown in fig. 9, the electric glue gun of the present invention further includes a limiting mechanism electrically connected to the control mechanism to limit the forward limit position and the backward limit position of the push rod assembly and prevent the push rod assembly from moving forward or backward excessively, wherein the limiting mechanism includes a first limiting assembly and a second limiting assembly.
Specifically, referring to fig. 9, a first limit assembly for limiting the backward limit position of the push rod assembly includes a first hall element 711 and a first magnetic member 712. The first hall element 711 is a first hall plate disposed at the front end of the casing 110 and electrically connected to the control mechanism 400, and the first magnetic member 712 is disposed at the front end of the push rod, wherein the first magnetic member 712 may be a magnetic ring sleeved on the lead screw 510 or a magnetic block embedded in the lead screw 510.
The second limiting assembly is used for limiting the forward limit position of the push rod assembly, the second limiting assembly includes a second hall element 721 and a second magnetic member 722, the second hall element 721 is disposed at the rear end of the casing 110 and electrically connected to the control mechanism 400, in this embodiment, the second hall element 721 is directly disposed on the control mechanism 400, of course, a hall plate electrically connected to the control mechanism 400 may be separately disposed, and the second magnetic member 722 is disposed at the rear end of the push rod, wherein the second magnetic member 722 may also be a magnetic ring sleeved on the lead screw 510, or a magnetic block embedded in the lead screw 510.
When the screw 510 retreats to the position where the first magnetic part 712 approaches the first hall element 711, the first hall element 711 sends a detection signal to the control mechanism 400, and when the detection signal reaches a first preset threshold value, it is determined that the retreating limit position is reached, the control mechanism 400 controls the motor to stop rotating, thereby preventing the screw 510 from retreating excessively; similarly, when the lead screw 510 advances until the second magnetic member 722 approaches the second hall element 721, the second hall element 721 sends a detection signal to the control mechanism 400, and when the detection signal reaches a second preset threshold, it is determined that the forward limit position is reached, the control mechanism 400 controls the motor to stop rotating, thereby preventing the lead screw 510 from excessively advancing.
The electric glue gun of the invention can simultaneously control the reverse rotation of the motor and the switching of the state of the speed changing component by operating the operating component, in other words, the switching of the moving direction and the moving speed of the push rod component can be simultaneously changed by the operating action of the operating component 620. The low-speed glue injection device is simple in operation and reasonable in arrangement, realizes low-speed glue injection and high-speed retreat, can meet the normal glue injection requirement and enable the push rod to reset rapidly when not in work, and is favorable for improving the use experience of users.
Of course, as another embodiment of the present invention, the switching member 630 and the speed changing assembly 530 may not be provided, in this case, the speed changing assembly employs a control circuit board, the speed adjusting control circuit board may be configured as one of the modules on the control mechanism, or a separate control circuit board electrically connected to the control mechanism may be separately provided, and similarly, the operating member 620 and the control switch 610 may be provided, the operation of the operating member 620 may change the state of the control switch 610, the state of the control switch 610 may be changed by sending a control signal for adjusting the speed to the control mechanism, and the control mechanism may control the motor to change the steering direction and the rotation speed, wherein the state change means is changed from being released to being pressed or from being pressed to being released. In this embodiment, the direction and the rotation speed of the motor can be changed by means of the speed-regulating motor and the speed-regulating control circuit without structural change, but the speed-regulating range of the output speed of the push rod assembly in this embodiment is smaller than that in the two embodiments, namely, the push rod assembly can be adjusted only within the allowable rotation speed range of the motor.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (11)
1. An electric glue gun comprising:
a housing;
a glue container supported at the front end of the housing;
the power mechanism comprises a motor for providing power for the tool;
the transmission mechanism comprises a push rod assembly connected with the glue container, and the push rod assembly is driven by the power mechanism to move;
the control mechanism is electrically connected with the motor to control the motor to operate;
it is characterized in that the preparation method is characterized in that,
the transmission mechanism further comprises a speed change component which is in transmission connection with the push rod component and the motor, and the speed change component has different transmission states which enable the push rod component to output different speeds;
the electronic rifle of gluing still includes state switching mechanism, includes:
a control switch operable to change a state of the control switch, the control switch being electrically connected to the control mechanism; when the state of the control switch is changed, the control mechanism controls the motor to change the rotating direction and the speed change assembly to switch the transmission state.
2. The electric glue gun of claim 1, wherein the shift assembly includes a first transmission state causing the push rod assembly to output a first speed and a second transmission state outputting a second speed, the second speed being higher than the first speed;
when the control switch is triggered, the control mechanism controls the motor to rotate reversely and the speed change component is switched to the second transmission state.
3. The electric glue gun of claim 1, wherein the shift assembly includes a first transmission state causing the push rod assembly to output a first speed and a second transmission state outputting a second speed, the second speed being higher than the first speed;
when the contact of the control switch is released, the control mechanism controls the motor to rotate reversely and the speed change component is switched to the second transmission state.
4. The electric glue gun of claim 2 or 3,
the state switching mechanism further comprises an operating member operable by a user to drive the control switch to change states.
5. The electric glue gun of claim 4,
the state switching mechanism further includes a biasing force member that applies a biasing force to the operating member to bring it to an initial position.
6. The electric glue gun of claim 2 or 3,
the speed change assembly includes:
a housing;
the planetary gear train is arranged in the shell around a central axis and comprises at least one movable gear ring and a locking piece which can be locked with the movable gear ring, the movable gear ring can move to a locking position along a direction parallel to the central axis, and the locking piece locks the movable gear ring positioned at the locking position to limit the rotation of the movable gear ring;
the state switching mechanism further comprises a switching piece for switching the position of the movable gear ring, and the switching piece is in transmission connection with the operating piece and the movable gear ring.
7. The electric glue gun of claim 6, wherein the switch comprises:
the switching part penetrates through the shell and is connected with the movable piece;
a driven part connected with the operating part;
and a rotation support portion located between the switching portion and the driven portion, the rotation support portion being rotatably connected to the housing.
8. The electric glue gun of claim 1, wherein the speed change assembly is a control circuit board electrically connected to the control switch and the motor, respectively, and the control circuit board adjusts the operating speed of the motor when the state of the control switch changes.
9. The electric glue gun of claim 1, further comprising a limit mechanism electrically connected to the control mechanism to limit the forward and rearward limit positions of the push rod assembly.
10. The electric glue gun of claim 9, wherein the stop mechanism comprises:
the first limiting assembly comprises a first Hall element arranged at the front end of the shell and a first magnetic part arranged at the front part of the push rod assembly;
the second limiting assembly comprises a second Hall element arranged at the rear end of the shell and a second magnetic part arranged at the rear part of the push rod assembly;
the first Hall element and the second Hall element are respectively and electrically connected with the control mechanism.
11. The electric glue gun as claimed in claim 10, wherein the push rod assembly includes a push rod in transmission connection with the transmission mechanism, and the first and second magnetic members are magnetic rings sleeved on the push rod or magnetic blocks embedded in the push rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107373.0A CN114377921A (en) | 2020-10-16 | 2020-10-16 | Electric glue gun |
| US17/381,723 US11919136B2 (en) | 2020-07-28 | 2021-07-21 | Power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107373.0A CN114377921A (en) | 2020-10-16 | 2020-10-16 | Electric glue gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114377921A true CN114377921A (en) | 2022-04-22 |
Family
ID=81193675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011107373.0A Pending CN114377921A (en) | 2020-07-28 | 2020-10-16 | Electric glue gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114377921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713467A (en) * | 2022-04-25 | 2022-07-08 | 联伟汽车零部件(重庆)有限公司 | Self-rotating centering glue squeezing gun |
-
2020
- 2020-10-16 CN CN202011107373.0A patent/CN114377921A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713467A (en) * | 2022-04-25 | 2022-07-08 | 联伟汽车零部件(重庆)有限公司 | Self-rotating centering glue squeezing gun |
| CN114713467B (en) * | 2022-04-25 | 2024-01-12 | 联伟汽车零部件(重庆)有限公司 | Self-rotation centering glue extruding gun |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Applicant after: Nanjing Quanfeng Technology Co.,Ltd. Address before: No. 529, Jiangjun Avenue, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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