KR20210068271A - Multi 3D Pen - Google Patents

Abstract

A multi-3D pen according to the present invention includes: a case which is penetrated in an axial direction to form a receiving unit; a plurality of filaments having different colors and provided in the receiving unit; a heater unit provided in the receiving unit to melt the filaments; and a driving unit moving at least one of the filaments to the heater unit. Accordingly, the multi-3D pen provides filaments of various colors or can provide filaments of different colors by mixing the same, controls the speed of filaments provided to a user, can mix colors can by adjusting a temperature at which the filaments fuse, and can provide information related to handwriting being used to the user by detecting user's handwriting.

Description

Multi 3D Pen {Multi 3D Pen}

The present invention relates to a multi 3D pen, and more particularly, to a multi 3D pen capable of providing various colors by providing any one of a plurality of filaments or by mixing two or more colors.

In general, 3D printing technology is capable of freely forming a solid material in a three-dimensional shape by injecting and curing materials such as polymer materials, plastics, and metallic powder, and is an additive manufacturing method using real models, prototypes, and tools. and to shape parts and the like.

Meanwhile, with the development of 3D printing technology, development of 3D pens that can draw pictures or form models in 3D in addition to 3D printers are being actively developed. Most of these conventional 3D pens have a problem of injecting a filament through a single nozzle, so if you want to use a filament of a different color, you need to replace the filament.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi- 3D pen capable of saving time by reducing the hassle that occurs during filament replacement and providing information related to the cursive being used by the user.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a multi- 3D pen according to an embodiment of the present invention includes a case through which an accommodating part is formed through axial direction, a plurality of filaments having different colors and provided in the accommodating part, and the filament and a drive unit for moving at least one of the heater unit and the filament provided in the receiving unit to melt the heater unit.

In addition, the case includes an input part communicating with the accommodating part and the outside of the case, and a through part facing the inlet and communicating with the accommodating part and the outside of the case, and between the input part and the through part. A bracket for supporting the driving unit may be further included.

In addition, the case may further include a manipulation unit for adhering the filament to the driving unit to push the filament into the through portion.

In addition, the driving unit may include a motor and a worm gear connected to a rotation shaft of the motor, and the filament in close contact with the worm gear may move toward the through portion by the rotational force of the worm gear.

In addition, the manipulation unit is provided to correspond to the filament, is fastened to a surface in contact with the bracket, and moves in parallel with the bracket to bring the worm into close contact with the worm gear.

In addition, a flow path through which the filament moves is formed and includes a nozzle part moving in the axial direction of the case by the bracket, and the nozzle part includes a filament inlet formed to correspond to the filament so that the filament is inserted, and the through part A part protruding through the outside of the case, and a filament outlet for discharging the filament, and the filament between the inlet and the filament outlet may include a mixing unit in which the filament is mixed.

In addition, it may further include a sensor unit for measuring the speed of providing the filament and the temperature of the melting heater unit.

In addition, it further includes a display unit attached to the case to visualize and provide status information, control the driving unit based on the information measured by the sensor unit, and select a setting selected by the user according to the information provided through the display unit. It may include a control unit to control.

In addition, the bracket may further include a linear motor, hooked on one side of the linear motor to bring the filament into close contact with the worm gear, and move the filament into the through-hole by the rotational force of the worm gear.

According to the multi 3D pen of the present invention, there are one or more of the following effects.

First, according to the multi- 3D pen of the present invention, there is an effect of providing filaments of various colors or providing by mixing filaments of different colors with each other.

Second, according to the multi- 3D pen of the present invention, there is an effect of controlling the speed of the filament provided to the user, and adjusting the temperature for fusing the filaments to mix colors.

Third, according to the multi- 3D pen of the present invention, there is an effect of detecting the user's cursive and providing information related to the cursive being used to the user.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a front view showing a multi- 3D pen according to an embodiment of the present invention;
2 and 3 are cross-sectional views showing the operation of FIG. 1;
4 and 5 are cross-sectional views showing another embodiment of FIG. 2;
6 is a plan view illustrating FIGS. 4 and 5 .

Prior to describing the present invention in detail below, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention, which is limited only by the appended claims. shall. All technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art, unless otherwise stated.

Throughout this specification and claims, unless stated otherwise, the term comprise, comprises, comprising is meant to include the stated object, step or group of objects, and steps, and any other object. It is not used in the sense of excluding steps or groups of objects or groups of steps.

On the other hand, various embodiments of the present invention may be combined with any other embodiments unless clearly indicated to the contrary. Any feature indicated as particularly preferred or advantageous may be combined with any other feature and features indicated as preferred or advantageous. Hereinafter, embodiments of the present invention and effects thereof will be described with reference to the accompanying drawings.

Figure 1 is a front view showing a multi- 3D pen according to an embodiment of the present invention, Figures 2 and 3 are cross-sectional views showing the operation of Figure 1, Figures 4 and 5 are cross-sectional views showing another embodiment of Figure 2 , FIG. 6 is a plan view showing FIGS. 4 and 5 .

A preferred multi 3D pen may be changed by a person skilled in the art, and in one embodiment of the present invention, it is a multi 3D pen.

1 is a front view illustrating a multi- 3D pen according to an embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views illustrating the operation of FIG. 1 .

When describing the multi- 3D pen according to an embodiment of the present invention with reference to FIGS. 1 to 3 , the round bar-shaped case 10 and the filament 5 provided inside the case 10, the filament 5 The case 10 includes a driving unit 20 coupled to the case 10 to discharge to the outside, and an operation unit 30 for adhering the filament 5 to the driving unit 20 . Filament 5 is a first filament (5a) having a different color, a second filament (5b), a third filament (5c) is provided in the case (10).

The case 10 may be made of plastic, aluminum, or the like having a round bar shape with a hollow inside, and preferably made of a material resistant to heat. The case 10 is penetrated in the axial direction to form a receiving portion 12 having a hollow inside. The case 10 is formed with an input unit 14 that communicates with the receiving unit 12 and the case 10 to the outside, and is opposed to the input unit 14 to communicate with the receiving unit 12 and the case 10 to the outside. A through portion 16 is formed. Meanwhile, in the case 10 , a scanning unit for detecting the user's handwriting is provided in the through unit 16 , and the handwriting detected by the scanning unit, which will be described later, is transmitted to the control unit.

For example, in the case 10 , the filament 5 is inserted into the receiving portion 14 through the input portion 12 , and the filament 5 is discharged through the through portion 16 . The case 10 is provided with a drive unit 50 to transfer the filament 5 to the through portion 16 between the input unit 14 and the through portion 16, and a cutout portion ( 11) is formed.

The cutout 11 may be provided close to the side into which the filament 5 is inserted in the longitudinal direction of the case 10 . In addition, a guide groove 11a of a predetermined length is provided on the sidewall of the cutout 11 in the longitudinal direction of the cutout 11 , so that the manipulation unit 30 can be guided. In addition, the case 10 is provided with a release button 40 that blocks the filament 5 when providing the filament 5 by pressing the operation unit 30 . The release button 40 is connected to the control unit, and when the release button 40 is pressed, the control unit releases the operation unit 30 to block the filament 5 provided to the user.

The display unit 20 may be attached to the outside of the case 10 and output status information of the multi- 3D pen 1 received from the control unit. The display unit 20 receives and outputs information from the control unit to control the setting of the color of the filament 5 and the driving unit 50 provided to the user. Information output through the display unit 20 may be set by the user through the input unit. In addition, the display unit 20 outputs a state in which the speed and temperature of the driving unit 50 can be adjusted by the user and a cursive body detected by the scanning unit. The display unit 20 transmits information measured by the sensor unit, the scan unit, etc. to the control unit, and when the control unit transmits the information to the display unit 20 , the user determines the speed of the motor to be described later based on the information output on the display unit 20 . It is possible to control the etc., and to adjust the temperature for melting the filament (5). For example, when the user specifies a color, the control unit controls the driving unit 50 by calculating the mixing ratio of each filament 5 in the control unit to determine the supply amount. The case 10 may further include a manipulation unit 30 for adhering the filament 5 to the driving unit 50 to push the filament 5 into the through-hole 16 .

The operation unit 30 is installed in the case 10 , and can be operated by a user from the outside of the case 10 . The manipulation unit 30 may move the position of the filament 5 to be closely attached to the worm gear 56 . For example, the operation unit 30 includes a button unit 32 and a first elastic member 34 for elastically supporting the button unit 32 , and further includes a second elastic member 36 for supporting the driving unit 50 . include The button unit 32 has a button protrusion (32a) for pressing the filament (5a) is formed to protrude. The driving unit 50 is disposed between the first elastic member 34 and the second elastic member 36 . Accordingly, when the button unit 32 is pressed, the filament 5a is brought into close contact with the worm gear 56 .

The driving unit 50 moves to the nozzle unit 60 when at least one or more of the filaments are in close contact. The driving unit 50 is provided inside the case 10 , and is disposed between the first elastic member 34 and the second elastic member 36 . Here, the driving unit 50 operates based on the rack-and-pinion driving. for example, The driving unit 50 includes a bracket 52 supporting the case 10 , a motor 54 installed in the bracket 52 , and a worm gear 56 connected to a rotation shaft of the motor 54 . The filament 5 in close contact with the worm gear 56 may move toward the through portion 16 by the rotational force of the worm gear 56 .

The bracket 52 is installed in the case 10 so that the motor 54 to which the worm gear 56 is connected is disposed toward the inlet 14 . The bracket 52 is provided in a shape according to the inner diameter of the case 10, is disposed between the first elastic member 34 and the second elastic member 36, and when the button unit 32 is pressed, the first elastic member A force is transmitted from the member 34 to press the second elastic member 36 . In addition, when the button unit 32 is pressed, the bracket 52 slides at a predetermined interval in the case 10 to transmit the pressing force to the nozzle unit 60, and includes a pressing protrusion 58 formed to extend toward the nozzle unit 60. do. In the pressing protrusion 58 , when the user applies force to the button unit 32 , the bracket 52 slides toward the nozzle unit 60 , so that the pressing protrusion 58 presses the nozzle unit 60 .

The nozzle part 60 is provided in the interior of the case 10 close to the through-hole 16 . The nozzle unit 60 is made of a material that does not melt at the temperature at which the filament 5 is melted so as to transfer heat from the heater unit 70 to the filament 5 . The nozzle unit 60 has a flow path through which the filament 5 moves and can be moved in the axial direction of the case 10 by the bracket 52 . The nozzle unit 60 partially protrudes to the outside of the case 10 through the filament inlet 62 formed to correspond to the filament 5 and the through-hole 16 so that the filament 5 is inserted, and the filament (5) A mixing zone (M) in which different filaments (5a, 5b, 5c) are mixed may be provided between the filament outlet (64) and the filament inlet (62) and the filament outlet (64) for discharging. In addition, the filament inlet 62 and the filament outlet 64 are communicated by a flow path through which the filament 5 moves. The nozzle unit 60 moves in the axial direction of the case 10 pressed by the pressing protrusion 58 . Moreover, when the elastic body 66 is provided between the nozzle part 60 and the through part 16, and the operation part 30 is cancelled|released, the elastic body 66 returns to normal.

The heater part 70 is supported by the case 10 between the bracket 52 and the through part 16 in the receiving part 12 so as to melt the filament 5 . The heater unit 70 generates heat to a predetermined temperature to melt the filament 5 . The heater unit 70 may intensively apply heat to the mixing unit M. The heater unit 70 may be connected to the control unit to control the temperature. The heater unit 70 can be adjusted according to the desired temperature set according to the user or the temperature sensed by the sensor unit, so that the colors of the filaments 5 can be mixed.

Meanwhile, between the heater unit 70 and the case 10 , a heat insulating member made of an insulating material is disposed between the heater unit 70 and the case 10 to block the heat generated by the heater unit 70 from being transferred to the case 10 . By further including (80), it is possible to lower the heat transferred to the case (10). In addition, A heat discharging hole is formed in proximity to the through-hole 16 , so that heat generated while melting can be discharged to the outside of the case 10 . On the other hand, the heat discharge hole is formed close to the through-hole 16, or cold air pushes out the hot air by the theory of thermal circulation, so that the cold air is located at the bottom and the hot air moves to the upper side to dissipate the heat inside the case ( 10) It can be discharged outside.

The sensor unit frequently measures the speed of providing the filament 5 and the temperature inside the melting heater unit 70 and/or the case 10 . The case 10 may further include an input unit for the user to selectively set the information visualized on the display unit 20 through the control unit.

4 and 5 are cross-sectional views illustrating another embodiment of FIG. 2 , and FIG. 6 is a plan view illustrating FIGS. 4 and 5 .

Another embodiment of the present invention will be described with reference to FIGS. 4 to 6 , the driving unit 150 is formed in a hook shape so that when the user operates through the display unit, the filament 5 is brought into close contact with the worm gear 156 . For example, the driving unit 150 includes a bracket 152 provided inside the case 10, a linear motor 154 sliding parallel to the bracket 152, and a worm gear 156 mounted on the motor (not shown). is installed on the bracket 152 . When the user sets the predetermined filaments 5a and 5b through the display unit 20, the filaments 5a and 5b are moved to the worm gear 156 as shown in FIGS. 6(a) to 6(b). It is fastened to the surface in contact with the bracket 152 and moves in parallel with the bracket 152 to bring the filament 5 into close contact with the worm gear 156 . In this way, in a state in which the filaments 5a and 5b are in close contact with the worm gear 156, when the user operates the recovery button, the linear motor 154 is restored to the original state and the adhesion state is released to prevent the provision of the filaments 5a and 5b stop

Accordingly, according to the multi- 3D pen of the present invention, it is possible to provide filaments of various colors or provide a mixture of filaments of different colors, control the speed of the filaments provided to the user, and the temperature at which the filaments fuse can be adjusted to mix colors, and it has the effect of detecting the user's handwriting and providing information related to the handwriting being used to the user.

Features, structures, effects, etc. exemplified in each of the above-described embodiments may be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

10: case
20: display
30: control panel
40: drive unit
50: nozzle unit

Claims (9)

A case through which the receiving portion is formed in the axial direction;
a plurality of filaments having different colors and provided in the receiving unit;
a heater unit provided in the receiving unit to melt the filament; and
A multi- 3D pen comprising a driving unit for moving at least one of the filaments to the heater unit.
According to claim 1,
The case is
and an input part communicating with the accommodating part and the outside of the case, and a through part facing the inlet and communicating with the accommodating part and the outside of the case,
The multi- 3D pen further comprising a bracket for supporting the driving part between the input part and the through part.
3. The method of claim 2,
The case is
Multi- 3D pen further comprising a manipulation unit for adhering the filament to the driving unit so as to push the filament into the through-hole.
4. The method of claim 3,
The drive unit,
motor and
It includes a worm gear connected to the rotation shaft of the motor,
A multi- 3D pen for moving the filament in close contact with the worm gear toward the through portion by the rotational force of the worm gear.
4. The method of claim 3,
The operation unit,
A multi- 3D pen provided to correspond to the filament and fastened to a surface in contact with the bracket to move in parallel with the bracket to bring the filament into close contact with the worm gear.
3. The method of claim 2,
and a nozzle part having a flow path through which the filament moves and moving in the axial direction of the case by the bracket,
The nozzle unit,
a filament inlet formed to correspond to the filament so that the filament is inserted;
a filament outlet partially protruding to the outside of the case through the through-hole, and discharging the filament;
A multi- 3D pen comprising a mixing unit in which the filament is mixed between the filament inlet and the filament outlet.
5. The method of claim 4,
The multi- 3D pen further comprising a sensor unit for measuring the speed of providing the filament and the temperature of the melting heater unit.
8. The method of claim 7,
Further comprising a display unit attached to the case to provide visualization of the state information,
and a controller for controlling the driving unit based on the information measured by the sensor unit, and controlling a setting selected by a user according to information provided through the display unit.
5. The method of claim 4,
In the bracket,
Further comprising a linear motor,
A multi- 3D pen that is caught on one side of the linear motor to bring the filament into close contact with the worm gear, and move the filament into the through-hole by the rotational force of the worm gear.

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