CN114953816B - Operation control method and system of electric cutting mechanism - Google Patents
Operation control method and system of electric cutting mechanism Download PDFInfo
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- CN114953816B CN114953816B CN202210516964.6A CN202210516964A CN114953816B CN 114953816 B CN114953816 B CN 114953816B CN 202210516964 A CN202210516964 A CN 202210516964A CN 114953816 B CN114953816 B CN 114953816B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/002—Sharpeners for pencils or leads with continuous conveying means for the pencil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L23/00—Sharpeners for pencils or leads
- B43L23/008—Sharpeners for pencils or leads with rotating cutting bodies
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Abstract
The invention discloses an operation control method and system of an electric cutting mechanism, wherein the control process at least comprises the following steps: applying a first directional force to the entirety of the cutting blade set with a pencil inserted into the pencil sharpening channel of the cutting blade set; the cutting knife set contacts with the first action part to move towards the first direction, and approaches to and acts on the switch component; the switch component is triggered for the first time, and the motor rotates positively; the sharpened pencil point moves downwards, and the second action part is stressed to move towards the first direction side; the switch component is triggered again to stop or reversely rotate the motor; the electric pencil sharpener has the advantages that the single switch component is used for controlling different states of the same motor, the start and the end of the cutting action of the cutting knife set are realized, the circuit structure in the electric pencil sharpener is simplified, the running stability of a control system is improved, the failure rate of opening and closing the pencil sharpener is reduced, the cost is saved, the structure is compact, and the difficulty of switch and circuit installation is reduced.
Description
Technical Field
The invention relates to an electric pencil sharpener, in particular to an operation control method and system of an electric cutting mechanism.
Background
The existing electric pencil sharpener in the market can switch on the power switch to realize pencil sharpening when sharpening the pencil, and can take out the pencil when the power switch is switched off after sharpening the pencil.
The utility model discloses an electronic pencil sharpener of bulletin number CN206703798U, electronic pencil sharpener is equipped with switch and delay outage mechanism, the pencil that enters into the pencil jack touches switch and starts, after the cutting is accomplished, nib contact delay initiative tooth upwards jack-up back with the delay gear interlock of intermeshing position, in this process along with the hobbing cutter in the rolling tool continue to do planetary pencil motion of cutting, so the delay initiative tooth that is simultaneously jacked drives the delay gear and also do the rotation work of same direction, when the delay gear rotates to the fender needle on the delay gear jack-up A power contact piece's state along with the delay initiative tooth, the delay initiative tooth continues to rotate, 90 of this period rotation is delay time, A power contact piece and B power contact piece thoroughly disconnect this moment, realize the outage work of electronic pencil sharpener.
Therefore, the electric pencil sharpener of the above patent needs to be provided with two switches, one is a power switch responsible for starting the motor, and the other is a power-off switch for closing the motor.
The control circuit of two switch settings not only is easy because the mutual interference of two switches influences stability, and when one of them switch trouble, the circuit disconnection can't fixed point definitely the cause of failure, inconvenient maintenance. In addition, the two switches and the two circuits are inconvenient to install, and the requirement on the space position in the shell is high.
Disclosure of Invention
The invention aims to provide an operation control method and an operation control system for an electric cutting mechanism of an electric pencil sharpener, which are used for realizing the starting and the closing of the electric pencil sharpener by only adopting one switch.
The technical scheme adopted for solving the technical problems is as follows: an operation control method of an electric cutting mechanism, wherein the controlled object at least comprises:
a motor, a cutting knife set driven by the motor for cutting pencil and a switch component;
the control process at least comprises the following steps:
(a) Applying a first directional force to the entirety of a cutting blade set with a pencil inserted into a pencil sharpening channel of the cutting blade set;
(b) The cutting knife set moves towards the first direction and contacts with a first action part positioned at the first direction side of the cutting knife set;
(c) The first acting part is forced to move towards a first direction and approaches and acts on the switch component;
(d) The switch component is triggered for the first time, and the motor rotates positively;
(e) The sharpened pencil point moves down so that the pencil point pushes the second action part in the first direction;
(f) The second acting part is stressed to move to the first direction side until approaching to and acting on the switch component;
(g) The switch member is again activated to stop or reverse the motor.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the first and second active portions may act directly or indirectly on the switch member.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: and (3) automatically stopping the motor in the step (g) after reversing the rated time.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the trigger signal of the switch component is sent to the control circuit, and the control circuit processes the signal and then controls the motor to operate.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: after the switch component is triggered for the first time and the triggering is released, the motor rotates positively.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the first action part elastically moves to a first direction by the external force on the pencil conducted by the cutting knife group, and the switch component is triggered;
and when the external force is removed, the first acting part moves towards a second direction opposite to the first direction under the action of elastic force, and the switch component triggers release.
The technical scheme adopted for solving the technical problems is as follows: an operation control method of an electric cutting mechanism, wherein the controlled object at least comprises:
a motor, a cutting knife set driven by the motor for cutting pencil, a switch component and a control circuit;
the control process at least comprises the following steps:
(a) Applying a first directional force to the entirety of a cutting blade set with a pencil inserted into a pencil sharpening channel of the cutting blade set;
(b) The cutting knife set moves towards the first direction and contacts with a first action part positioned at the first direction side of the cutting knife set;
(c) The first acting part is forced to move towards a first direction and approaches and acts on the switch component;
(d) The switch component is triggered for the first time, signals are sent to the control circuit, and the control circuit processes and stores information;
(e) The first action part moves reversely, the triggering of the switch part is released, and the signal sending control circuit is processed and stored;
(f) The control circuit judges information and sends an instruction to the motor, and the motor rotates positively;
(g) The sharpened pencil point moves down so that the pencil point pushes the second action part in the first direction;
(h) The second acting part is stressed to move to the first direction side until approaching to and acting on the switch component;
(i) The switch component is triggered again, a signal is sent to the control circuit, and the control circuit stops or reversely rotates the motor.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: when the switch component is in a trigger state, the control circuit enables an alarm device to operate so as to prompt a user of the state of the switch component.
The technical scheme adopted for solving the technical problems is as follows: an operation control method of an electric cutting mechanism, wherein the controlled object at least comprises:
a motor, a cutting knife set driven by the motor for cutting pencil and a switch component;
the control process at least comprises the following steps:
(a) Pushing the second action part in the first direction by a pencil point inserted into a pencil sharpening channel of the cutter group;
(b) The second acting part is stressed to move to the first direction side until approaching to and acting on the switch component;
(c) The switch component is triggered and kept for the first time, and the motor does not run or reversely rotate.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the trigger signal of the switch component is sent to the control circuit, and the control circuit processes the signal and then controls the motor to operate.
The technical scheme adopted for solving the technical problems is as follows: the operation control system of the cutting mechanism of the electric pencil sharpener comprises a control circuit, a motor, a cutting knife set, an elastically floatable rotating shaft and a switch component;
the motor drives the cutting knife set to rotate through the rotating shaft;
the cutting knife set comprises a knife rest with a longitudinal cutting channel, a knife edge at the side of the cutting channel and a central movable piece positioned below the cutting channel;
the rotating shaft is hollow, a push rod capable of moving up and down is arranged in the rotating shaft, and the central moving part acts on the push rod downwards;
the pencil is inserted into the pencil sharpening channel of the tool rest and presents a first state and a second state;
in the first state, the pen point does not touch the central movable part, and the pencil presses down the cutting knife set so as to enable the rotating shaft to move downwards;
in the second state, the pen point touches the central movable part, and the pencil presses down the central movable part so as to enable the ejector rod to move downwards;
a switch component is arranged below the rotating shaft and is triggered by downward movement of the rotating shaft and the ejector rod respectively;
the control circuit is connected with the switch component and receives a trigger signal so as to control the motor to operate according to the trigger signal.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the rotating shaft moves downwards to trigger the switch component, and the motor rotates forwards; the ejector rod triggers the switch component, and the motor stops or rotates reversely.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the switch component is a micro switch or a Hall switch.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: a spring seat with a central through hole is arranged between the rotating shaft and the switch component, and a return spring is arranged between the spring seat and the switch component;
the rotating shaft is forced to move downwards, the spring seat is forced to move downwards, the return spring is compressed, and the pressing part at the lower end of the spring seat triggers the switch component;
the external force is removed, the reset spring is reset, the rotating shaft is elastically floated, and the switch component is triggered to be released;
the ejector rod is forced to move downwards and pass through the central through hole, and the lower end surface of the ejector rod is pressed and used for triggering the switch component.
The preferred technical scheme adopted by the invention for solving the technical problems is as follows: the pencil sharpener also comprises a pencil feeding component, wherein the pencil feeding component is arranged at the upstream of the cutting knife set, and a pencil insertion space is formed by a pencil feeding channel of the pencil feeding component and a cutting channel of the cutting knife set.
Compared with the prior art, the pencil sharpener has the advantages that in the pencil sharpening process, the two action parts, namely the first action part and the second action part, are respectively displaced due to different positions of the pencil entering the cutting channel, a single switch part is arranged on one side of the action part, and different states of the same motor are controlled through actions of different action parts, so that the start and end of the cutting action of the cutting knife set are realized, the circuit structure in the electric pencil sharpener is simplified, the operation stability of a control system is improved, the maintenance difficulty is reduced, the opening and closing failure rate of the pencil sharpener is reduced, and the pencil sharpener also has the effects of saving cost, compacting the structure and reducing the difficulty of switch and line installation.
Drawings
The invention will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the invention. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.
FIG. 1 is a first block diagram of an electric pencil sharpener according to a preferred embodiment of the present invention;
FIG. 2 is a second block diagram of the electric pencil sharpener according to the preferred embodiment of the present invention;
FIG. 3 is a partial block diagram of the operation control system of the cutting mechanism according to a preferred embodiment of the present invention;
FIG. 4 is a second partial block diagram of the operation control system of the cutting mechanism according to a preferred embodiment of the present invention;
FIG. 5 is a flowchart of a method for controlling operation of a cutting mechanism according to a preferred embodiment of the present invention;
FIG. 6 is a flow chart of a second method of controlling operation of a cutting mechanism according to a preferred embodiment of the present invention;
fig. 7 is a flowchart of a method of controlling the operation of the cutting mechanism according to a preferred embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative, exemplary, and should not be construed as limiting the scope of the invention.
It should be noted that: like reference numerals denote like items in the following figures, and thus once an item is defined in one figure, it may not be further defined and explained in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "front", "rear", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
As shown in fig. 1-4, the present embodiment provides an electric pencil sharpener that includes a housing and a pencil sharpening mechanism within the housing. Wherein the pencil sharpening mechanism comprises a motor 1 and a cutting blade set 3 for sharpening pencils. The power of the motor 1 is provided by a battery 10 within the housing. In the present embodiment, there is also provided an operation control system of the cutting mechanism of the electric pencil sharpener including the motor 1 and the cutting blade group 3. The control system further comprises a switching member 2 for controlling the operation of the motor 1. The cutting blade set 3 comprises at least a tool holder 3a having a cutting channel S and a cutting edge 3b at the side of the cutting channel. The motor 1 drives the cutting blade set 3 such that the cutting blade set 3 rotates to cut the pencil in the cutting path.
In the present embodiment, the switch member 2 is provided on one side of the cutting blade set 3 in the first direction, and the cutting blade set 3 includes two action portions having displacement capability, namely, a first action portion 31 and a second action portion 32. The two action parts can be respectively acted on by pencils inserted in different states of the cutting passage to perform the function of triggering the switch part 2. It should be emphasized that the two active parts may be directly active on the switch element 2, or may be spatially connected to the switch element 2, or may even indirectly act on the switch element 2 through force or other energy conduction by other elements.
When the pencil tip is in a blunt or non-blunt state, the penetration degree of the pencil in the cutting passage is limited, the pencil acts on the side wall of the cutting passage, so that the external force is applied to the whole of the cutter holder 3a, and the first acting portion 31 is positioned at the first direction side of the cutting blade set 3 and has the capability of conducting force with the cutter holder 3a of the cutting blade set 3, so that when the pencil applies force to the cutter holder 3a, the first acting portion 31 is also stressed to displace.
When the pencil point is in a state where the electric pencil sharpener can sharpen, the pencil enters into the deep of the sharpening passage, and the pencil point touches the second action portion 32 at the deepest position, and an external force is applied to the second action portion 32, so that the second action portion 32 is forced to displace.
As shown in fig. 5 to 6, the present embodiment provides a method of controlling the operation of the electric cutting mechanism based on the control of the same switch member 2 by the first action portion 31 and the second action portion 32, and both thereof.
The control process at least comprises the following steps:
(a) Applying a first directional force to the whole of the cutting blade set 3 by inserting a pencil into the cutting channel of the cutting blade set 3;
(b) The cutting blade group 3 moves in the first direction and contacts the first acting portion 31 located on the first direction side of the cutting blade group 3;
(c) The first acting portion 31 is forced to move in the first direction, approaching and acting on the switch member 2;
(d) The switch part 2 is triggered for the first time, and the motor 1 rotates positively;
(e) The sharpened pencil point is moved down so that the point pushes the second action portion 32 in the first direction;
(f) The second acting portion 32 moves to the first direction side by force until approaching and acting on the switch member 2;
(g) The switching member 2 is again activated to stop or reverse the rotation of the motor 1.
It should be understood that, by controlling different states of the same motor 1 by a single switch component 2, the start and end of the cutting action of the cutting knife set 3 are realized, the circuit structure in the electric pencil sharpener is simplified, the operation stability of the control system is improved, the failure rate of opening and closing the pencil sharpener is reduced, and the effects of saving cost, compacting the structure and reducing the difficulty of switch and circuit installation are achieved.
It is noted that in one of the more specific embodiments, as shown in fig. 5, the switching element 2 effects the on and off of the operating circuit of the motor 1. In this case, regardless of the initial state of the pencil tip entering the cutting passage, it first acts on the first acting portion 31, and the first acting portion 31 first triggers the switching member 2, so that the switching member 2 is in the first state to turn on the forward running circuit of the motor 1, and the motor 1 starts forward rotation.
If the nib of the pencil is in a blunt or non-blunt state in the initial state, after the pencil is inserted in place, the first acting portion 31 is moved, the motor 1 is started, the cutting blade set 3 rotates to sharpen the pencil, the sharpening process of the pencil proceeds further toward the first direction of the cutting path until the nib of the pencil acts on the second acting portion 32, and the second acting portion 32 triggers the switching member 2 again, so that the switching member 2 is in the second state to disconnect or switch the operating circuit of the motor 1 to the reverse operating circuit of the other motor 1, and thus the motor 1 stops operating or rotates reversely.
If the nib of the pencil is in a pointed state in the initial state, the first acting portion 31 is driven by the force of insertion at a point during insertion of the pencil, so that the motor 1 is also started first. However, since the pen point of the pencil is pointed, the pen point of the pencil is extended to the deepest position of the cutting passage within a short time after the motor 1 is operated, and acts on the second acting portion 32, and the second acting portion 32 triggers the switching member 2 again, so that the switching member 2 is in the second state to disconnect or switch the operating circuit of the motor 1 to the reverse operating circuit of the other motor 1, and thus the motor 1 is stopped to operate or reversely rotate.
That is, as shown in fig. 5, in this embodiment, the switching member 2 is first triggered, the motor 1 starts to perform the normal rotation, and the motor 1 always starts the normal rotation and then stops or rotates in the reverse direction.
In another embodiment, as shown in fig. 6, after the switch part 2 is first triggered and the trigger is released, the motor 1 is rotated in the forward direction. That is to say in this method, a control circuit is also included which is capable of processing the signals of the switching element 2.
After insertion of the pencil, the first action part 31 is moved, the switch part 2 is first triggered, and the control circuit receives the first signal of the switch part 2. Then, the first acting portion 31 is moved reversely by the directional force, the triggering of the switch member 2 is released, and the control circuit receives the second signal of the switch member 2. The directional force can be applied by means of an elastic element, i.e. an elastic element which, by deformation, can provide a force in the opposite direction after removal of the force, is provided in the force transmission path of the first acting portion 31 and the switch element 2.
It should be understood that, because of the presence of the elastic member, the first acting portion 31 is elastically moved in the first direction by the external force on the pencil conducted by the cutting blade set 3, the elastic member is compressed, and the switch member 2 is triggered; when the external force is removed, the elastic member is deformed, the first acting portion 31 moves in a second direction opposite to the first direction by the elastic force, and the switch member 2 is triggered to release.
So far, the control circuit analyzes and compares the first signal and the second signal, judges that the switch component 2 is triggered for the first time and the interlocking information of triggering release is obtained, and sends an instruction to enable the motor 1 to rotate positively, and if not, the motor is not rotated.
Thereafter, the motor 1 rotates the cutter 3 in the forward direction to sharpen the pencil, and the sharpening process of the pencil proceeds further toward the first direction of the cutting path until the tip of the pencil acts on the second acting portion 32, and the second acting portion 32 again activates the switching member 2, and the control circuit receives the third signal of the switching member 2. When the control circuit receives the third signal, the control circuit directly sends a command to stop or reversely rotate the motor 1. After which the pencil is removed upwards along the cutting path and the triggering signal of the switching element 2 is released.
To sum up: as shown in fig. 6, the process of controlling the operation control method of the electric cutting mechanism includes at least the steps of:
(a) Applying a first directional force to the whole of the cutting blade set 3 by inserting a pencil into the cutting channel of the cutting blade set 3;
(b) The cutting blade group 3 moves in the first direction and contacts the first acting portion 31 located on the first direction side of the cutting blade group 3;
(c) The first acting portion 31 is forced to move in the first direction, approaching and acting on the switch member 2;
(d) The switch part 2 is triggered for the first time, signals are sent to the control circuit, and the control circuit processes and stores information;
(e) The first action part 31 moves reversely, the trigger of the switch part 2 is released, and the signal transmission control circuit is processed and stored;
(f) The control circuit judges information and sends an instruction to the motor 1, and the motor 1 rotates positively;
(g) The sharpened pencil point is moved down so that the point pushes the second action portion 32 in the first direction;
(h) The second acting portion 32 moves to the first direction side by force until approaching and acting on the switch member 2;
(i) The switching element 2 is triggered again, sending a signal to the control circuit which stops or reverses the rotation of the motor 1.
In addition, as shown in fig. 7, in the initial state of the pencil, the nib of the pencil is in a pointed state, and after the pencil is directly inserted into the cutting passage, the nib directly acts on the second acting portion 32 to not act on the first member, so that the switch member 2 is triggered and the triggered state is maintained for a certain period of time, and in this process, the motor 1 does not rotate, and the cutting operation is not performed, so that the user can judge. In this case, if the pencil is directly removed, the trigger is touched, so that the motor 1 is not operated, and therefore, the motor should be assisted by combining other technical means, such as a reset key to restore the signal in the control circuit.
Based on this, the operation control system preferably further comprises an alarm device, such as an indicator light. When the switch part 2 is in the triggered state, the control circuit makes an indicator light to prompt the user of the state of the switch part 2. Through the observation to the pilot lamp, the state that the pencil mechanism was located can be better judged, the trouble is helped getting rid of.
It is further noted that the switch member 2 may be a micro switch or a hall switch. When a microswitch is employed, the first and second active portions 31, 32 contact the microswitch by themselves or other components in force-transmitting relation thereto to effect triggering and de-triggering. When the hall switch is adopted, the first acting part 31 and the second acting part 32 or other parts with force conduction relation with the first acting part and the second acting part are provided with magnetic elements at the positions close to the hall switch, and triggering and releasing triggering are realized in a way of approaching or separating.
In this embodiment, the switch component 2 adopts a micro switch, and the contact type trigger makes the operation stability of the system more reliable. When the trigger part of the micro switch is triggered by contact, the micro switch transmits a high-level signal to the control circuit, and when the contact is released, the micro switch transmits a low-level signal to the control circuit. Thereby realizing differential transmission of signals so as to facilitate the control circuit to process and send different instructions to the motor 1.
Preferably, as shown in fig. 1-2, after the pencil sharpening is completed, the motor 1 adopts a reverse rotation mode to realize automatic pencil withdrawal, thereby further improving the experience of the user. Here, the motor 1 is automatically stopped after reversing for a rated time. Not only the use safety is ensured, but also the energy loss is avoided. This nominal time varies depending on the design of the electric pencil sharpener itself, and it should be preferable to withdraw the pencil from the cutting channel.
In this embodiment, the electric pencil sharpener further includes a pencil feeding assembly 5, the pencil feeding assembly 5 is disposed upstream of the cutting blade set 3, and a pencil feeding channel of the pencil feeding assembly 5 and a cutting channel of the cutting blade set 3 form a pencil insertion space. The pencil feeding assembly 5 assists the insertion of the pencil and cooperates with the counter-rotating cutting blade set 3 to achieve the function of automatic pencil withdrawal.
As a specific implementation of the structure of the operation control system, a specific construction of the electric pencil sharpener is also provided in the present embodiment.
As shown in fig. 1 to 4, the operation control system of the cutting mechanism of the electric pencil sharpener comprises a control circuit, a motor 1, a cutting knife set 3, a rotatable shaft 6 which can elastically float and a switch part 2; the rotating shaft 6 is connected with the cutting knife set 3, and the motor 1 drives the cutting knife set 3 to rotate through the rotating shaft 6.
The cutting blade set 3 includes a blade holder 3a having a longitudinal cutting channel, a cutting-channel-side blade 3b, and a center movable member 32 located below the cutting channel. The rotating shaft 6 is hollow and internally provided with a push rod 8 which can move up and down, and the central moving part 32 is downwards and can act on the push rod 8. So that the jack 8 moves further down along the center hole of the rotation shaft 6.
The pencil is inserted into the cutting passage of the cutting blade set 3 and assumes a first state and a second state; in the first state, the nib does not touch the center movable member 32, and the pencil presses down the cutter group 3 to move the rotation shaft 6 downward; in the second state, the nib touches the center movable member 32, and the pencil presses down the center movable member 32 to move the jack 8 downward.
A switch component 2 is arranged below the rotating shaft 6, and the switch component 2 is respectively triggered by the downward movement of the rotating shaft 6 and the ejector rod 8; the control circuit is connected with the switch component 2 and receives the trigger signal to control the motor 1 to operate according to the trigger signal. The rotating shaft 6 moves down to trigger the switch component 2, and the motor 1 rotates forward; the ejector rod 8 triggers the switch member 2, and the motor 1 stops or rotates reversely.
As shown in fig. 1 to 4, the rotation shaft 6 is connected to the tool holder 3a by a spline structure, and a lower section of the tool holder 3a is provided with a hole which is in butt joint with the rotation shaft 6, and the center movable member 32 is provided in the hole. The end of the cutting passage of the holder 3a has a through hole for the nib to protrude to act on the center movable member 32.
As shown in fig. 3-4, a spring seat 7 with a central through hole is arranged between the rotating shaft 6 and the switch part 2, and a return spring 9 is arranged between the spring seat 7 and the switch part 2; the rotating shaft 6 moves downwards under the force, the spring seat 7 moves downwards under the force, the return spring 9 compresses, and the pressing part positioned at the lower end of the spring seat 7 triggers the switch part 2; external force is removed, the reset spring 9 resets, the rotating shaft 6 elastically floats upwards, and the switch part 2 triggers release; the ejector rod 8 is forced to move downwards and pass through the central through hole, and the lower end surface of the ejector rod 8 presses and triggers the switch component 2.
That is, in the specific structure of the operation control system of the cutting mechanism of the electric pencil sharpener provided in the present embodiment, the first acting portion 31 is the holder seat 31 of the holder 3a, but the holder seat 31 is in force conduction with the spring seat 7, and the holder seat 31 acts on the switch member 2 through the spring seat 7. The second acting portion 32 is a center movable member 32, and the center movable member 32 is in force conduction with the jack 8, and acts on the switch member 2 through the jack 8.
The above description is made in detail on the method and system for controlling the operation of the electric cutting mechanism provided by the invention, and specific examples are applied herein to illustrate the principles and embodiments of the invention, and the above examples are only used for assisting the invention and core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (9)
1. An operation control method of an electric cutting mechanism is characterized in that:
the controlled object includes at least:
a motor, a cutting knife set driven by the motor for cutting pencil and a switch component;
the control process at least comprises the following steps:
(a) Applying a first directional force to the entirety of a cutting blade set with a pencil inserted into a pencil sharpening channel of the cutting blade set;
(b) The cutting knife set moves towards the first direction and contacts with a first action part positioned at the first direction side of the cutting knife set;
(c) The first acting part is forced to move towards a first direction and approaches and acts on the switch component;
(d) After the switch component is triggered for the first time and the triggering is released, the motor rotates forwards; the first action part elastically moves to a first direction by the external force on the pencil conducted by the cutting knife group, and the switch component is triggered; when the external force is removed, the first acting part moves towards a second direction opposite to the first direction under the action of elastic force, and the switch component triggers release;
(e) The sharpened pencil point moves down so that the pencil point pushes the second action part in the first direction;
(f) The second acting part is stressed to move to the first direction side until approaching to and acting on the switch component;
(g) The switch member is again activated to stop or reverse the motor.
2. The operation control method of an electric cutting mechanism according to claim 1, wherein the first and second operating portions directly or indirectly operate the switching member.
3. The method of controlling operation of an electric cutting mechanism according to claim 1, wherein the motor in step (g) is automatically stopped after a reverse rated time.
4. The operation control method of the electric cutting mechanism according to claim 1, wherein the trigger signal of the switching member is sent to a control circuit, and the control circuit processes the signal to control the operation of the motor.
5. The method of claim 4, wherein the control circuit causes an alarm device to operate when the switch member is in the activated state to alert a user to the state of the switch member.
6. The operation control system of the cutting mechanism of the electric pencil sharpener is characterized by comprising a control circuit, a motor, a cutting knife set, an elastically floatable rotating shaft and a switch component;
the motor drives the cutting knife set to rotate through the rotating shaft;
the cutting knife set comprises a knife rest with a longitudinal cutting channel, a knife edge at the side of the cutting channel and a central movable piece positioned below the cutting channel;
the rotating shaft is hollow, a push rod capable of moving up and down is arranged in the rotating shaft, and the central moving part acts on the push rod downwards;
the pencil is inserted into the pencil sharpening channel of the tool rest and presents a first state and a second state;
in the first state, the pen point does not touch the central movable part, and the pencil presses down the cutting knife set so as to enable the rotating shaft to move downwards; in the second state, the pen point touches the central movable part, and the pencil presses down the central movable part so as to enable the ejector rod to move downwards;
a switch component is arranged below the rotating shaft and is triggered by downward movement of the rotating shaft and the ejector rod respectively; the control circuit is connected with the switch component and receives a trigger signal so as to control the motor to operate according to the trigger signal;
the rotating shaft moves down to trigger the switch component by external force and floats upwards to release the trigger after the external force is removed, and the motor rotates forwards;
the ejector rod moves downwards under acting force to trigger the switch component, and the motor stops or rotates reversely.
7. The operation control system of the cutting mechanism of the electric pencil sharpener of claim 6, wherein said switch member is a micro switch or a hall switch.
8. The operation control system of the cutting mechanism of the electric pencil sharpener of claim 6, wherein a spring seat with a central through hole is arranged between the rotation shaft and the switch component, and a return spring is arranged between the spring seat and the switch component;
the rotating shaft is forced to move downwards, the spring seat is forced to move downwards, the return spring is compressed, and the pressing part at the lower end of the spring seat triggers the switch component;
the external force is removed, the reset spring is reset, the rotating shaft is elastically floated, and the switch component is triggered to be released; the ejector rod is forced to move downwards and pass through the central through hole, and the lower end surface of the ejector rod is pressed and used for triggering the switch component.
9. The operation control system of the cutting mechanism of the electric pencil sharpener of claim 6, further comprising a pencil feeding assembly disposed upstream of the cutting blade assembly, the pencil feeding assembly pencil feeding channel and the cutting blade assembly cutting channel forming a pencil insertion space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210516964.6A CN114953816B (en) | 2022-05-12 | 2022-05-12 | Operation control method and system of electric cutting mechanism |
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| CN202210516964.6A CN114953816B (en) | 2022-05-12 | 2022-05-12 | Operation control method and system of electric cutting mechanism |
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| CN114953816B true CN114953816B (en) | 2023-06-16 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8353323B2 (en) * | 2009-06-29 | 2013-01-15 | Elmer's Products, Inc. | Sharpener with autostop feature |
| CN203752763U (en) * | 2014-04-01 | 2014-08-06 | 娄宗茂 | Electric pencil sharpener capable of achieving automatic stopping after sharpening |
| CN205523270U (en) * | 2016-02-04 | 2016-08-31 | 宁海县金益文具有限公司 | Electric pencil sharpener |
| CN207579409U (en) * | 2017-05-26 | 2018-07-06 | 宁波天天文具有限公司 | A kind of full-automatic pencil sharpener |
| CN109733100B (en) * | 2019-03-06 | 2023-10-24 | 三木控股集团有限公司 | Movement of electric pencil sharpener |
| CN110406295A (en) * | 2019-07-31 | 2019-11-05 | 宁波天天文具有限公司 | The transmission device of pencil sharpener |
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