CN220075589U - 3D printing pen - Google Patents

Abstract

The utility model discloses a 3D printing pen which comprises a pen body, a controller and an internal component positioned in the pen body, wherein the controller is positioned outside the pen body and is relatively independent of the pen body. The utility model has the advantages that the controller is peeled off from the pen body, the conventional hand and the conventional finger for holding the 3D printing pen are released, the user can concentrate on the drawing process by the conventional hand, the cooperation process of the two hands is realized by fully utilizing the non-conventional hand or the non-holding finger (such as ring finger or little finger) of the conventional hand, and the utility model is more suitable for drawing for a long time and accurately.

Description

3D printing pen

Technical Field

The utility model relates to a 3D printing pen.

Background

The 3D printing pen is deeply favored by manual lovers since the advent of the prior art, the control buttons of the common 3D printing pen are arranged on the pen body, when a user needs to control the feeding speed and the temperature or start and close, the user can only use the conventional hand to operate the buttons while holding the pen, and the finger mainly used for holding the pen is usually the finger used for operating the buttons, so that the creator is easy to fatigue and certain inconvenience can be brought due to complete dependence on the conventional hand and the conventional finger in the drawing process needing accurate drawing and long time.

In chinese patent application publication No. CN106536152a, a 3D printer pen is disclosed, which comprises at least two buttons, the additional component of which is part of the barrel (body) and is located at the proximal open first end, i.e. the control button is arranged on the body. U.S. patent publication No. US11,446,852B2 discloses a hand-held 3D printer pen with buttons for control at the first and second ends of the pen body, respectively, i.e., control buttons are provided on the pen body. The control buttons of the 3D printing pen are not only positioned on the pen body, but also are positioned at positions which can be reached by fingers holding the pen basically.

Disclosure of Invention

The present utility model is directed to a 3D printer pen with a controller independent of the pen body, so as to overcome the above-mentioned drawbacks in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the 3D printing pen comprises a pen body, a controller and an internal component positioned in the pen body, wherein the controller is positioned outside the pen body and is relatively independent of the pen body.

Preferably, the internal assembly comprises a printed circuit board, and the controller is connected with the printed circuit board in a wired manner.

Further, the controller is connected with the printed circuit board through a first wire.

Further, the controller has a wire receiving assembly for receiving the first wire.

Further, the pen body is provided with a wire accommodating assembly for accommodating the first wire.

As another preferred mode, the internal component comprises a printed circuit board, and the controller is connected with the internal component in a wireless mode.

Further, the controller and the pen body are provided with movable connecting components.

Further, the movable connecting component is a magnetic component.

Further, the movable connecting component is a plug-in component.

Further, the movable connecting component is a clamping component.

As another preferred mode, the internal components include a printed circuit board and other internal components, and the controller includes a control board, and a key connected to the control board, the key controlling the other internal components through the printed circuit board.

Further, the other internal components include at least a power supply component, a drive component, and a heating component.

Further, the other internal components further include a heat dissipating component.

As another preferred mode, the pen body comprises a first inner shell, the outer surface of the first inner shell is provided with a wire groove, the inner assembly comprises a printed circuit board and a heating assembly, the heating assembly is connected with the printed circuit board through a third wire, and the third wire is arranged in the wire groove.

Further, the back of the wire groove forms a feeding channel, and the feeding channel is positioned inside the first inner shell.

Further, the feed channel comprises a straight channel.

Further, the feed channel includes straight channels and curved channels.

Compared with the prior art, the utility model has the advantages that the controller is peeled off from the pen body, the conventional hand and the conventional finger for holding the 3D printing pen are released, the conventional hand can be used for focusing on the drawing process by the user, and the non-conventional hand or the non-holding finger (such as ring finger or little finger) of the conventional hand is fully utilized to realize the cooperation process of the two hands, so that the utility model is more suitable for drawing for a long time and accurately.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the 3D printer pen of the present utility model.

Fig. 2 is a schematic diagram of a part of the internal structure of a controller of the 3D printing pen according to the present utility model.

Fig. 3 is a schematic front projection view of a pen body of the 3D printing pen of the present utility model.

Fig. 4 is a cross-sectional view taken along A-A' of fig. 3.

Fig. 5 is a partial enlarged view of fig. 4.

Fig. 6 is an exploded structure view of an inner case of the 3D printing pen of the present utility model.

Reference numerals illustrate:

100-a shell, 110-a pen tip outer shell, 120-a first inner shell, 121-an end part, 122-a wire guide groove, 123-a first straight channel, 124-a first bent channel, 125-a first outlet, 126-a first mounting groove, 130-a second inner shell, 133-a second straight channel, 134-a second bent channel, 136-a second mounting groove, 140-a discharging component and 141-a discharging channel;

200-internal components, 210-printed circuit boards, 220-power components, 230-drive components, 231-speed change members, 232-motors 233-drive members, 240-heating components;

400-cap, 401-first hole, 402-second hole, 410-transition channel;

500-a controller, 510-a control board, 520-keys, 530-a first communication module;

800-wire.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Reference is made to fig. 1-6. The 3D printing pen of the present utility model includes a pen body, an internal component 200 located inside the pen body, and a controller 500 located outside the pen body relatively independent of the pen body, the internal component 200 including a printed circuit board 210, a power supply component 220 electrically connected to the printed circuit board 210, a driving component 230, and a heating component 240, respectively, the power supply component 220 being used to supply power to the other components and mechanisms. The controller 500 is connected with the pen body in a wired or wireless manner. When connected in a wired manner, both ends of the first wire (not shown) are respectively connected with the controller 500 and the printed circuit board 210 positioned inside the pen body; when connected wirelessly, the controller 500 and the printed circuit board 210 are connected by contactless communication means (e.g., bluetooth, NFC, etc.). The controller 500 and the printed circuit board 210 have a non-contact type communication device for implementing the above communication scheme, and as shown in fig. 2, the controller 500 includes a control board 510, and a key 520 and a first communication module 530 connected to the control board 510, and the printed circuit board 210 has a second communication module (not shown) capable of implementing communication with the first communication module 530, both of which constitute the above non-contact type communication device.

According to actual needs, the functions, the number, the positions and the arrangement sequence of the keys 520 can be set, and the keys 520 at least have the control functions of opening, closing, accelerating (feeding), decelerating (feeding), heating and the like, and particularly can also have the control functions of material returning, cooling, resetting and the like, so that the keys can be realized by a person skilled in the art without creative labor, and are not repeated herein.

In one embodiment, the controller 500 is connected to the pen body in a wired or wireless manner, so that the controller 500 and the pen body are provided with a magnetic component or other movable connection component (such as a plug component or a clamping component) for facilitating storage of the controller 500, and the controller 500 and the pen body can be conveniently stored together with the pen body in a non-use state without easy loss. In another embodiment, the controller 500 is connected to the pen body in a wired manner, and the controller 500 or the pen body has a wire receiving assembly (e.g., a self-retracting assembly) to prevent the wire from being twisted and knotted or broken due to improper storage.

In one embodiment, the pen body has a housing 100. The housing 100 is connected with the cap 400. The cap 400 has a first hole 401 for introducing the wire 800 into a passage inside the housing 100, and a second hole 402 as a power jack for introducing the power wire into the printed circuit board 210 inside the housing 100. In one embodiment, in order to provide a sufficient installation space for the printed circuit board 210 within the limited space inside the housing 100, the first hole 401 and the second hole 402 are located at both sides of the central axis of the housing 100, respectively, and the feed channel connected to the first hole 401 is not located on the central axis. For smooth transition engagement with the feed channel, the cap 400 further has a transit channel 410 in communication with the first hole 401, and the transit channel 410 may be abutted, detachably connected or fixedly connected with the feed channel; in order to allow the wire 800 to pass through unimpeded, the inner diameter of the transit passage 410 is equal to or slightly smaller than the inner diameter of the feed passage, but both the inner diameter of the transit passage 410 and the inner diameter of the feed passage are larger than the diameter of the wire 800.

The housing 100 includes a nib outer housing 110, a first inner housing 120 and a second inner housing 130 that are connected to each other, and the first inner housing 120 and the second inner housing 130 are detachably connected or fixedly connected, such as a snap fit, a clamp connection, an interference fit, a screw connection, etc. The end 121 of the first inner housing 120 is connected to the nib outer housing 110, and in one embodiment, the end 121 of the first inner housing 120 is located inside the nib outer housing 110. The housing 100 also includes a discharge assembly 140, the discharge assembly 140 having a discharge passage 141 for guiding the heated melted wire 800 out of the pen body for printing. The discharge passage 141 communicates with a feed passage, which communicates with the first hole 401.

In one embodiment, the feed channel comprises a straight channel and a curved channel connected to each other, the straight channel being constituted by a first straight channel 123 located inside the first inner shell 120 and a second straight channel 133 located inside the second inner shell 130, the curved channel being constituted by a first curved channel 124 located inside the first inner shell 120 and a second curved channel 134 located inside the second inner shell 130. In another embodiment, the feed channel has only a straight channel, depending on the location of the feed inlet (first hole 401) and the discharge channel 141, if both are located on the center axis of the pen body, the feed channel has only a straight channel, otherwise it is also necessary to connect the straight channel and the discharge channel 141 by a section of bend. In the various figures of the utility model, neither the inlet nor the outlet channel 141 is located on the central axis of the pen body, so as to leave more room for the internal components and to arrange them in a more optimal combination. In other embodiments, this may be achieved by a straight channel that is disposed obliquely.

A driving assembly 230 is provided on the straight passage, and the driving assembly 230 includes a speed change member 231, a driving member 233, and a motor 232 for the speed change member 231, which are connected to each other. In one embodiment, the driving member 233 includes a driving gear and a driven gear, and the driving gear is rotatably connected to the speed change member 231 and driven by the speed change member 231 to achieve the effects of forward rotation, reverse rotation, acceleration, deceleration, etc. The speed change member 231 is driven by the motor 232, and the wire 800 is held by the driving gear and the driven gear when passing through the driving gear and the driven gear, to continue to advance (in the direction of the pen tip), stop, accelerate, decelerate, or retreat. In one embodiment, the speed change member 231 is a gear box. The motor 232 is connected to the printed circuit board 210 via a second conductor (not shown). In one embodiment, the driving member 233 is located somewhere in the middle of the straight passage, and in another embodiment, the driving member 233 is located at one end of the straight passage.

In one embodiment, heating assembly 240 includes an electrically connected heater chip and third wire, with the heater chip being located between end 121 and outfeed assembly 140 and wrapping around some or all of outfeed assembly 140. The heating sheet is connected to the printed circuit board 210 through a third wire (not shown). In one embodiment, one end of the third wire is electrically connected to the heater chip, and the other end of the third wire passes through the first outlet 125 on the housing 100, enters the first end of the wire groove 122 on the back of the feed channel, and passes through the second end of the wire groove 122 to be electrically connected to the printed circuit board 210, so that most of the third wire can be far away from the inner assembly 200 without being physically disturbed by the inner assembly 200, thereby enhancing the stability of power supply to the heater chip. In one embodiment, as shown in FIG. 6, the feed channel back is machined directly into the wire channel 122 for ease of machining. In other embodiments, the wire groove 122 may be located at other locations outside the first inner housing 120. In other embodiments, the heating assembly may be other heating components suitable for implementation, and will not be described herein.

In one embodiment, the housing 100 has an external sleeve on the outside to encase and protect the housing 100, and also serves to shield the wire grooves 122 and prevent dust and foreign matter from entering.

The housing 100 has a first mounting location therein for mounting the integrated circuit board 210, and in one embodiment, the first inner housing 120 has a first mounting slot 126 and the second inner housing 130 has a second mounting slot 136, the first and second mounting slots 126 and 136 being secured from opposite sides of the integrated circuit board 210, respectively.

When the 3D printing pen is used, a user can hold the 3D printing pen by using a dominant hand (finger), and can control an external controller by using a non-dominant hand or a non-holding finger of the dominant hand, so that the stability and the continuity of holding the 3D printing pen are not affected while the control is implemented, and the 3D printing pen can be suitable for long-time and fine drawing.

Claims (10)

1.3D prints pen, including pen body, controller and the inside subassembly that is located the pen body inside, its characterized in that: the controller is located outside the pen body and is relatively independent of the pen body.

2. The 3D printer pen of claim 1, wherein: the internal assembly comprises a printed circuit board, and the controller is connected with the printed circuit board in a wired mode.

3. The 3D printer pen of claim 2, wherein: the controller is connected with the printed circuit board through a first wire.

4. A 3D printer pen according to claim 3, characterized in that: the pen comprises a pen body and a controller, wherein the pen body is provided with a first wire, and the controller is provided with a second wire.

5. The 3D printer pen of claim 1, wherein: the internal components comprise a printed circuit board, and the controller is connected with the internal components in a wireless mode.

6. The 3D printer pen of claim 5, wherein: the controller and the pen body are provided with movable connecting components.

7. The 3D printer pen of claim 1, wherein: the internal components comprise a printed circuit board and other internal components, the controller comprises a control board and keys connected with the control board, and the keys control the other internal components through the printed circuit board.

8. The 3D printer pen of claim 7, wherein: the other internal components include at least a power supply component, a drive component, and a heating component.

9. The 3D printer pen of claim 1, wherein: the pen body comprises a first inner shell, the outer surface of the first inner shell is provided with a wire groove, the inner assembly comprises a printed circuit board and a heating assembly, the heating assembly is connected with the printed circuit board through a third wire, and the third wire is arranged in the wire groove.

10. The 3D printer pen of claim 9, wherein: the back of the wire groove forms a feeding channel, and the feeding channel is positioned inside the first inner shell.