CN212667002U

CN212667002U - Auxiliary tool for automatically pushing quantitative rubber head and automatically cutting rubber shape

Info

Publication number: CN212667002U
Application number: CN202021658070.3U
Authority: CN
Inventors: 李娟�; 黄辉; 李哲; 倪澳莲
Original assignee: Huaqiao University
Current assignee: Huaqiao University
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-03-09
Anticipated expiration: 2030-08-11

Abstract

The utility model provides an auxiliary tool for automatically pushing out quantitative rubber heads and automatically cutting rubber shapes, a rubber strip is fixed by a chuck and inserted into a fixing piece at the head part at the front end of a shell, and a hole site at the tail end of the rubber strip is connected with a front end convex cylinder of a plastic outer cylinder; the outer shell is surrounded with two external magnetic rotating casing shells which are respectively used for controlling the cutting and the stretching of the internal eraser; the cutting unit is positioned at the front end part of the multifunctional electric eraser, wherein the built-in magnetic rotor is controlled by the external magnetic rotating casing to rotate, and further the positions of the internal pressing part and the positive and negative magnetic blocks are controlled; the worm telescopic unit is positioned between the cutting unit and the motor main body; the motor rotating unit is located in the front of the lithium battery, pressure borne by the rubber is fed back to the elastic pressure ball during wiping, and the elastic pressure ball transmits pressure to the pressure sensor to enable the motor inner rotor to drive the outer gear to operate, so that the inner gear and the outer casing are driven to rotate.

Description

Auxiliary tool for automatically pushing quantitative rubber head and automatically cutting rubber shape

Technical Field

The utility model relates to an eraser device especially relates to the appurtenance who releases quantitative rubber head automatically and cut the rubber form independently.

Background

The electric eraser is a tool frequently used by people at present, the existing internal structure of the electric eraser generally comprises a motor, a battery and a rubber strip, and when the electric eraser is usually used, an external button is pressed by a hand, so that the motor rotates at a high speed to drive the eraser to rotate, and the function of borrowing force is achieved. Meanwhile, the eraser can be used for wiping wrong parts of painting and writing, and for children, the high-speed rotation saves strength and is more convenient when the eraser is used for wiping.

However, when the eraser is used, the eraser is used frequently and quickly and needs to be replaced continuously, and the existing eraser structure is that the chuck and the eraser are taken down together, and a new eraser is put into the chuck for reuse; the existing eraser is short in length, low in using frequency and frequent in replacement, and the middle part of the eraser is always blackened, so that the using effect is influenced, and the front end of the eraser needs to be cut by an external cutter.

Consequently, single electronic rubber can high-speed rotation and can not satisfy people's demand, and current electronic rubber structure is fairly simple, can realize that the function is also more single, can not realize rubber cutting, flexible and autogiration simultaneously, based on this, the utility model provides an automatic release ration rubber head and the design of the appurtenance of independently cutting the rubber form.

SUMMERY OF THE UTILITY MODEL

Utility model's aim at overcomes prior art not enough, provides the appurtenance who releases ration rubber head automatically and cut rubber form independently, can be used to drawing and write and clean to can realize cutting, change length and rotatory effect of cleaning the trinity to the rubber, improve the efficiency that the function realized greatly.

The utility model provides a technical scheme that its technical problem adopted is: the auxiliary tool for automatically pushing out quantitative rubber heads and automatically cutting rubber forms comprises: the device comprises a rubber strip, a shell, a cutting unit, a worm telescopic unit, a motor rotating unit and a rear charging interface;

the rubber strip is fixed by a chuck and inserted into a fixing piece at the head of the front end of the shell, and a hole position at the tail end of the rubber strip is connected with a protruding cylinder at the front end of the plastic outer cylinder;

the outer shell is surrounded with two external magnetic rotating casing shells which are respectively used for controlling the cutting and the stretching of the internal eraser;

the cutting unit is positioned at the front end of the multifunctional electric eraser and consists of a replaceable tool bit, a cylindrical slide bar, a first built-in magnetic rotor, a telescopic rod, a pressing part, a pressure sensor and positive and negative magnetic blocks, wherein the first built-in magnetic rotor is controlled by an external magnetic rotating casing to rotate so as to control the positions of the pressing part and the positive and negative magnetic blocks inside the first built-in magnetic rotor;

the worm telescopic unit is positioned between the cutting unit and the motor main body and consists of a worm, a plastic outer cylinder and a second built-in magnetic rotor, the external magnetic rotating casing rotates to drive the second built-in magnetic rotor to rotate, and then the worm rotates, the plastic outer cylinder stretches to drive the rubber strip to stretch;

the motor rotating unit is positioned at the front part of the lithium battery and consists of a motor, an external gear, an internal gear, an external casing, an elastic pressure ball and a pressure sensor, the pressure borne by the rubber is fed back to the elastic pressure ball during wiping, and the elastic pressure ball transmits the pressure to the pressure sensor to enable an internal rotor of the motor to drive the external gear to operate, so that the internal gear and the external casing are driven to rotate;

the rear charging interface is positioned at the tail end of the multifunctional electric eraser, is opposite to the head and the tail of the eraser head, and consists of a charging hole, a front-end circuit interface and a rear-end circuit interface.

In a preferred embodiment: the front end part of the shell can be rotatably taken out for replacing the cutter head; the lower part of the front end of the shell is provided with a movable button which moves back and forth to pour out the rubber scraps in the inner cavity of the shell.

In a preferred embodiment: the cutting unit is used for cutting by rotating the motor at a high speed, wherein a rotor in the motor, a central fixed cylinder and a rotating main body of the cutting unit are connected by 4 telescopic rods; the cutting unit rotating body is fixed in the front end fixing piece.

In a preferred embodiment: the pressing component is arranged in the internal magnetic rotor, the number of the pressing component is 2, the included angle formed by the extension lines of the pressing component is 120 degrees, and when the pressing component rotates to the vertical line, the telescopic rod is pressed to enable the cylindrical sliding strip to slide downwards.

In a preferred embodiment: the cylinder slide bar is positioned on the sliding groove of the rotating main body and used for driving the cutting plate and the internally connected sliding block to slide up and down in the fixing piece.

In a preferred embodiment: the replaceable cutter head in the cutting unit is fixed in the cutting plate; the positive magnetic block is positioned in the cutting plate and mutually attracts or repels the positive magnetic block and the negative magnetic block in the rotating main body.

In a preferred embodiment: when the motor rotating unit rotates, the elastic pressure ball acts on the elastic pressure ball inside the annular gear on the outer casing through the external pressure action of the rubber strip, the two connecting rods are driven to move through being pressed, the pressure is transmitted to the pressure sensor, and the pressure sensor controls the rotor inside the motor to rotate.

In a preferred embodiment: the motor is characterized in that the rotor inside the motor is connected with an external gear, the external gear is connected with an internal gear through a telescopic rod, and the internal gear is surrounded on an external casing and has the same central axis.

In a preferred embodiment: the rack inside the worm telescopic unit is positioned in the plastic outer cylinder and driven by the teeth on the worm to stretch, wherein the two connecting rods are connected with the plastic outer cylinder.

In a preferred embodiment: the charging hole is connected with an external power line for charging.

The utility model has the advantages that:

1. the utility model discloses an automatic release quantitative rubber head and the appurtenance who independently cuts rubber form are with the help of three main unit: the cutting unit, the worm telescopic unit and the motor rotating unit realize cutting, stretching and automatic rotation under pressure of the rubber strip, and are externally controlled by magnetic rotation, so that independent modules can be independently controlled.

2. The cutting unit can simultaneously satisfy two cutting states, namely, the cutting angle is changed by changing the rotating direction, and the structure can satisfy common large-range wiping and local detail wiping.

3. The purpose of cutting the rubber strip is to remove black dirt on the surface of the rubber strip, so that the using effect of the rubber is improved.

4. The extension length of the rubber is changed by manually rotating and extending the worm extension unit, so that the rubber can be better used.

5. The motor rotating unit automatically rotates, the motor is started by sensing the pressure on the rubber, the motor can simultaneously rotate when being wiped, and the part to be cleaned can be wiped off only by using little force.

6. The utility model discloses a multi-functional electronic eraser can be used to drawing and write and clean to can realize wiping the trinity effect to the eraser cutting, change length and rotation.

Drawings

FIG. 1 is a front view of the present invention showing an auxiliary tool for automatically ejecting a quantitative rubber head and automatically cutting the rubber;

FIG. 2 is a perspective view of the present invention showing an auxiliary tool for automatically ejecting a quantitative rubber head and automatically cutting the rubber;

fig. 3 is an overall exploded view of the auxiliary tool for automatically ejecting the quantitative rubber head and automatically cutting the rubber shape according to the present invention.

Fig. 4 is an exploded view of the cutting unit of the present invention.

Fig. 5 is an exploded view of the

rotating bodies

18 and 19 in the cutting unit of the present invention.

Fig. 6 is an exploded view of the motor rotating unit of the present invention.

Fig. 7 is an exploded view of the worm extension unit of the present invention.

Fig. 8 is an exploded view of the rear charging interface of the present invention.

Fig. 9 is an operation diagram of the cutting unit of the present invention.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements.

Referring to fig. 1 to 9, the present embodiment provides an electric auxiliary tool for automatically ejecting a quantitative rubber head and automatically cutting a rubber form, including: the device comprises a rubber strip 1, a shell 7, a cutting unit, a worm telescopic unit, a motor rotating unit and a rear charging interface;

the rubber strip 1 is fixed by a chuck 2 and inserted into a fixing piece 3 at the head of the front end of the shell, and a hole position at the tail end of the rubber strip is connected with a protruding cylinder at the front end of the plastic outer cylinder 38; two external magnetic rotating

casings

8 and 9 are encircled on the shell and are respectively used for controlling the cutting and the stretching of the internal eraser;

the cutting unit is positioned at the front end part of the multifunctional electric eraser and mainly comprises a replaceable tool bit 15, a cylindrical slide bar 17, first built-in

magnetic rotors

26 and 27, a telescopic rod 29, a pressing part 28, a pressure sensor 32 and positive and negative magnetic blocks 16 and 33, wherein the first built-in

magnetic rotors

26 and 27 are controlled by an external magnetic rotating casing 8 to rotate, so that the positions of the internal pressing part 28 and the positive and negative magnetic blocks 33 are controlled, and the functions of controlling different states of straight cutting and oblique cutting of the replaceable tool bit are achieved;

the worm telescopic unit is positioned between the cutting unit and the motor main body and mainly comprises a worm 46, a plastic outer cylinder 38 and a second built-in magnetic rotor 45, the external magnetic rotating casing 9 rotates to drive the second built-in magnetic rotor 45 to rotate, the worm 46 further rotates, the plastic outer cylinder 38 is telescopic to drive the rubber strip 1 to be telescopic;

the motor rotating unit is positioned at the front part of the lithium battery 11 and mainly comprises a motor 10, an external gear 42, an internal gear 40, an external casing 37, an elastic pressure ball 35 and a pressure sensor 44, the pressure borne by the rubber during wiping is fed back to the elastic pressure ball 35, the elastic pressure ball 35 transmits pressure to the pressure sensor 44, and an internal rotor 43 of the motor drives the external gear 42 to operate, so that the internal gear 40 and the external casing 37 are driven to rotate, and the function of rotating the rubber is achieved; the rearmounted interface that charges is located multi-functional electronic eraser end, and is relative with the rubber head end to end, comprises charging hole 49, front end circuit interface 50 and rear end circuit interface 51, and it is right to insert with the power cord the utility model discloses charge.

Further, the housing front end portion 4 is rotatably removable for replacing a cutter head; the lower part of the front end of the shell is provided with a movable button 6 which moves back and forth to pour out the rubber scraps in the inner cavity of the shell.

Further, the cutting unit is a motor high-speed rotation cutting in which a motor inner rotor 25, a central fixed cylinder 23 and cutting

unit rotating bodies

18 and 19 are connected by 4 telescopic rods 22; the cutting

unit rotating bodies

18 and 19 are fixed in the front end fixing member (front end fixing portion) 13 so as not to be detachable therefrom.

Furthermore, the pressing members 28 are located in the internal magnetic rotor 26, the number of the pressing members 28 is 2, the included angle formed by the extension lines of the pressing members is 120 degrees, and when the pressing members 28 rotate to the vertical line, the telescopic rods 29 are pressed to enable the cylindrical sliding strips to slide downwards.

Furthermore, the cylindrical slide bar 17 is located on the sliding slot of the rotating body 18, and is used for driving the cutting board 14 and the internally connected slide block 31 to slide up and down in the fixing member 30, and when the cutting board slides to the position above the pressure sensor 32, the sliding is stopped, and the rotor 25 in the motor is started to drive the

rotating bodies

18 and 19 to rotate.

Furthermore, a replaceable cutting head 15 in the cutting unit is fixed in the cutting plate 14 and can be taken out when the replaceable cutting head needs to be replaced; the positive pole magnetic block 16 is positioned in the cutting plate 14 and generates mutual attraction or repulsion with the positive pole magnetic block 33 and the negative pole magnetic block 33 in the rotating body 19 for changing the cutting state.

Furthermore, when the positive and negative magnetic blocks 33 rotate clockwise, the positive magnetic block on the vertical line is mutually exclusive with the positive magnetic block 16 in the cutting plate, and the replaceable cutter head 15 which rotates by 30 degrees is fixed by extending the telescopic rod 22 to rotate; when the cutting board rotates anticlockwise, the negative pole magnetic block on the vertical line is mutually attracted with the positive pole magnetic block 16 inside the cutting board, and therefore the cutting board only slides up and down.

Further, the cutting unit rotating body is rotated at a timing at which the arrival time is stopped; when the rotating body rotates, the telescopic rod 21 connected with the motor inner rotor 24 extends out to fix the external magnetic rotating casing 8, and when the rotation is finished, the motor inner rotor 24 drives the telescopic rod 21 to rotate the reverse external magnetic rotating casing 8, so that the cutting state is restored.

Further, when the motor rotating unit rotates, the external pressure of the rubber strip acts on the elastic pressure ball 35 inside the ring gear 34 on the outer casing 37, and the two connecting rods 36 are moved by being pressed, so that the pressure is transmitted to the pressure sensor 44, and the rotation of the motor inner rotor 43 is controlled by the pressure sensor.

Furthermore, the motor inner rotor 43 is connected to an outer gear 42, the outer gear 42 is connected to an inner gear 40 via a telescopic rod 41, and the inner gear 40 surrounds the outer casing 37 with a common central axis.

Furthermore, the rack 47 inside the worm telescopic unit is located inside the plastic outer cylinder 38 and driven by the teeth on the worm 46 to extend and retract, wherein two connecting rods 48 are connected with the plastic outer cylinder 38 for fixing.

Further, the rearmounted interface that charges is located the utility model discloses terminal, be connected with shell 7, be connected with external power source line by charging hole 49 on it and charge, the electric current conduction is given front-end circuit interface 50 during charging, and then the conduction is given rear-end circuit interface 51, is connected with the lithium cell.

The use method of the electric auxiliary tool for automatically pushing out the quantitative rubber head and automatically cutting the rubber shape comprises the following steps: the method comprises the following steps:

a1, rotating the external magnetic rotating casing 8, cutting the internal rubber strip 1, wherein the clockwise is beveling and the anticlockwise is tangent, the maximum rotating angle is 120 degrees, and the rubber strip can automatically return after being cut;

a2, rotating the external magnetic rotating casing 9 to make the rubber strip stretch back and forth;

a3, when the multifunctional electric eraser is used, the eraser strip 1 is used for wiping, the motor drives the eraser strip to automatically rotate, the wiping is stopped, and the rotation is stopped;

a4, pushing the button 6 at the lower part of the shell forward can move on the moving strip 5, and the multifunctional electric eraser can be shaken slightly for a plurality of times to pour out eraser crumbs;

and A5, aligning the charging port connected with the power line with the charging hole 49 of the rear charging port for charging.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. Automatic release quantitative rubber head and from appurtenance of cutting rubber form, its characterized in that includes: the device comprises a rubber strip, a shell, a cutting unit, a worm telescopic unit, a motor rotating unit and a rear charging interface;

the cutting unit is positioned at the front end of the multifunctional electric eraser and consists of a replaceable tool bit, a cylindrical slide bar, a first built-in magnetic rotor, a telescopic rod, a pressing part, a pressure sensor and positive and negative magnetic blocks, wherein the first built-in magnetic rotor is controlled by an external magnetic rotating casing to rotate so as to control the positions of the pressing part, the positive magnetic block and the negative magnetic block inside the first built-in magnetic rotor;

2. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the front end part of the shell can be rotatably taken out for replacing the cutter head; the lower part of the front end of the shell is provided with a movable button which moves back and forth to pour out the rubber scraps in the inner cavity of the shell.

3. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the cutting unit is used for cutting by rotating the motor at a high speed, wherein a rotor in the motor, a central fixed cylinder and a rotating main body of the cutting unit are connected by 4 telescopic rods; the cutting unit rotating body is fixed in the front end fixing piece.

4. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the pressing component is arranged in the internal magnetic rotor, the number of the pressing component is 2, the included angle formed by the extension lines of the pressing component is 120 degrees, and when the pressing component rotates to the vertical line, the telescopic rod is pressed to enable the cylindrical sliding strip to slide downwards.

5. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the cylinder slide bar is positioned on the sliding groove of the rotating main body and used for driving the cutting plate and the internally connected sliding block to slide up and down in the fixing piece.

6. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 5, wherein: the replaceable cutter head in the cutting unit is fixed in the cutting plate; the positive magnetic block is positioned in the cutting plate and mutually attracts or repels the positive magnetic block and the negative magnetic block in the rotating main body.

7. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the motor is characterized in that the rotor inside the motor is connected with an external gear, the external gear is connected with an internal gear through a telescopic rod, and the internal gear is surrounded on an external casing and has the same central axis.

8. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the rack inside the worm telescopic unit is positioned in the plastic outer cylinder and driven by the teeth on the worm to stretch, wherein the two connecting rods are connected with the plastic outer cylinder.

9. The auxiliary tool for automatically ejecting a quantitative eraser head and automatically cutting an eraser shape according to claim 1, wherein: the charging hole is connected with an external power line for charging.