CN206140914U

CN206140914U - 3D printing pen

Info

Publication number: CN206140914U
Application number: CN201621180218.0U
Authority: CN
Inventors: 唐郁
Original assignee: GUANGZHOU YOUSU PLASTIC TECHNOLOGY Co Ltd
Current assignee: Guangzhou Yousu 3D Technology Co., Ltd
Priority date: 2016-10-27
Filing date: 2016-10-27
Publication date: 2017-05-03
Anticipated expiration: 2026-10-27

Abstract

The utility model discloses a 3D printing pen. This 3D printing pen is including heating head, fixing base, circuit board and the cap for brush. The heating head has feed inlet, discharge gate and discharging channel, and feed inlet and discharge gate all communicate in discharging channel, and the feed inlet is used for the intercommunication with feedway, is discharging channel's length 15 30mm. The fixing base has the draw -in groove, and the heating head has the one end card of feed inlet and establishes in the draw -in groove to make the heating head be connected with the fixing base. The circuit board is connected and is connected with heating head electricity on the fixing base and through connecting wire. The cap for brush includes casing and heat insulating strip, and the casing has holding chamber, first opening and second opening, and first opening all communicates in the holding chamber with the second opening, the heating head is established at the holding intracavity, and the tip of heating head is worn out the second opening and is stuck out in the casing, the inner wall in holding chamber is equipped with a plurality of heat insulating strips for the interval has between the outer wall of heating head and the inner wall in holding chamber. The not easy end cap of this 3D printing pen is not and easily scald the user.

Description

3D printing pen

Technical field

The utility model is related to 3D printing field, more particularly to a kind of 3D printing pen.

Background technology

In 3D printing field, the nib of pen is printed at wire vent (collodion silk), the preheating interval of collodion silk is short, when using conventional 5 volts when powering, the efficiency of heating surface is not high, nib cannot quick wire feed, easy plug.And heat the ceramic heat head of head to expose, High temperature easily scalds user.

Utility model content

Based on this, it is necessary to provide a kind of 3D printing pen for being not easy to plug and being not easy to scald user.

A kind of 3D printing pen, including：

Heating head, the heating head has charging aperture, discharging opening and tapping channel, the charging aperture and the discharging Mouth is communicated in the tapping channel, and the charging aperture is used to be connected with feeding device, and the length of the tapping channel is 15- 30mm；

Fixed seat, the fixed seat has draw-in groove, and there is the heating head one end of charging aperture to be fastened in the draw-in groove, So that the heating head is connected with the fixed seat；

Circuit board, the circuit board is connected in the fixed seat and electrically connects with the heating head；And

The cap for brush, the cap for brush includes housing and heat insulating strip, and the housing has accommodating cavity, the first opening and second opens Mouthful, first opening is communicated in the accommodating cavity with the described second opening, and the opening size of first opening is more described The size of the second opening is big；The heating head is located in the accommodating cavity, and the end of the heating head passes second opening And protrude from the housing；The inwall of the accommodating cavity is provided with multiple heat insulating strips so that the outer wall of the heating head and institute State and have between the inwall of accommodating cavity interval.

Wherein in one embodiment, also including collet, the collet be set in it is described heating head on, and it is described plus The end of hot head protrudes from the collet, and the cap for brush is set in the outside of the collet.

Wherein in one embodiment, the collet is by the glass fibre and 70% nylon that mass percent is 30% Make.

Wherein in one embodiment, also including connection siphunculus, it is solid with described that the connection siphunculus is located at the heating head Between reservation, one end of the connection siphunculus is communicated in the charging aperture, and the other end is fastened in the draw-in groove and for connecting The feeding device.

Wherein in one embodiment, there is the heating head one end of the charging aperture to have fixing groove, the charging Mouth is communicated in the fixing groove, and the one end of the connection siphunculus is fastened in the fixing groove.

Wherein in one embodiment, the internal diameter of the connection siphunculus is 1.5-2.5mm, and external diameter is 3.5-4.5mm, length For 20-25mm.

Wherein in one embodiment, the outer wall of the fixed seat has the fin of multiple protrusions, multiple radiatings Piece order is arranged, and has interval between the adjacent fin.

Wherein in one embodiment, the fixed seat is by the glass fibre and 70% nylon that mass percent is 30% Make.

Wherein in one embodiment, blocks are protected in the edge of second opening at least provided with two, when the heating head During in the accommodating cavity, the end of the heating head can protrude from the protection block.

Wherein in one embodiment, there are multiple louvres on the housing, the louvre is communicated in described accommodating Chamber.

Above-mentioned 3D printing pen, its heating head has charging aperture, discharging opening and tapping channel, charging aperture and discharging opening Tapping channel is communicated in, charging aperture is used to be connected with feeding device, the length of tapping channel is 15-30mm, can be electric in 5V Pressure effectively heating collodion silk, rationally, the efficiency of heating surface is high for the preheating zone of collodion silk, nib can quick wire feed, be difficult plug, effectively Avoid the plug wire problem of heating head.In addition, the cap for brush includes housing and heat insulating strip；Housing have accommodating cavity, first opening with And second opening, first opening with second opening be communicated in accommodating cavity, the inwall of accommodating cavity is provided with multiple heat insulating strips, works as heating When head is entered in accommodating cavity, there is interval between the outer wall and the inwall of accommodating cavity that heat head.By setting for above-mentioned heat insulating strip Put so that interval is formed between heating head and inwall, it is to avoid contact and cause between the heating head of high temperature and the inwall of housing Housing produces high temperature so that the above-mentioned 3D printing cap for brush is not easy to scald one's hand.

The cap for brush of above-mentioned 3D printing pen, is also provided with protecting the edge of block, the second opening to protect blocks at least provided with two, When heat head enter accommodating cavity in when, heat head end can protrude from protection block, by protect block setting effectively every From the direct exposed of heating cephalic par, contact of the end of heating head with user is efficiently avoid, being not easy to scald makes User.

Description of the drawings

Fig. 1 is an embodiment 3D printing schematic front view；

Fig. 2 is 3D printing schematic top plan view shown in Fig. 1；

Fig. 3 is 3D printing side cross sectional views shown in Fig. 1；

Fig. 4 is the cap for brush schematic front view of 3D printing pen shown in Fig. 1；

Fig. 5 is the schematic diagram of the first opening direction of the cap for brush shown in Fig. 4；

Fig. 6 is the schematic diagram of the second opening direction of the cap for brush shown in Fig. 4；

Schematic top plan view when Fig. 7 is the removing cap for brush of 3D printing pen shown in Fig. 2；

Schematic side view when Fig. 8 is the removing cap for brush of 3D printing pen shown in Fig. 7；

Fig. 9 is side cross sectional views when 3D printing pen shown in Fig. 8 removes the cap for brush.

Description of reference numerals

10th, 3D printing pen；100th, head is heated；110th, charging aperture；120th, discharging opening；130th, tapping channel；140th, fixing groove； 200th, collet；300th, fixed seat；310th, draw-in groove；320th, fin；400th, siphunculus is connected；500th, circuit board；600th, it is primary to lead Pin；610th, heating wire wire；700th, the cap for brush；710th, housing；711st, the first opening；712nd, the second opening；713rd, louvre；720、 Heat insulating strip；730th, block is protected；740th, buckle.

Specific embodiment

For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come in many different forms real It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model The understanding for opening content is more thorough comprehensive.

It should be noted that when element is referred to as " being fixed on " another element, it can directly on another element Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or may be simultaneously present centering elements.

Unless otherwise defined, all of technology used herein and scientific terminology are led with technology of the present utility model is belonged to The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein The purpose of description specific embodiment, it is not intended that in limiting the utility model.Term as used herein "and/or" includes The arbitrary and all of combination of one or more related Listed Items.

Referring to shown in Fig. 1 and Fig. 2, the present embodiment relate to a kind of 3D printing pen 10.The 3D printing pen 10 includes heating head 100th, collet 200, fixed seat 300, connection siphunculus 400, circuit board 500 and the cap for brush 700.

Referring to shown in Fig. 1 and Fig. 3, the heating 100 has charging aperture 110, discharging opening 120 and tapping channel 130, The charging aperture 110 and the discharging opening 120 are communicated in the tapping channel 130, and the charging aperture 110 is used for and feed Device is connected, and the length of the tapping channel 130 is 15-30mm.The heating 100 has one end of the charging aperture 110 With fixing groove 140, the charging aperture 110 is communicated in the connection siphunculus 400 and passes through fixing groove 140.

In the present embodiment, what above-mentioned heating 100 can adopt ceramic or high temperature resistant plastic material (can also be gold Category plus the composite wood of insulation) heating 100, with internal resistance, for the heating wire and NTC of 1.8-2 ohms, (internal resistance is in heating 100 47K ohms, precision is 1% temperature control thermistor) part.

Referring to shown in Fig. 1 and Fig. 3, the collet 200 is set in the company of the fixed seat 300 and the heating 100 Connect on the shell at place and away from ceramic head heating wire main body, heating 100 is fixed in the fixed seat 300, and the heating 100 end protrudes from the collet 200, and the cap for brush 700 is set in the outside of the collet 200.

Above-mentioned collet 200 can make collet 200 using exotic material.In the present embodiment, it is described heat-insulated Set 200 is made up of 30% glass fibre of mass ratio with 70% nylon, it is also possible to other high temperature resistants and the coefficient of heat conduction Low material is made.Collet 200 can meet general insulation requirement, and we can also fill out in the content space of collet 200 Fill nano heat-insulating insulation material or wrap up one layer on ceramic head 100 and send the heat-insulated soft felt of base, collet 200 is then put again, can To obtain more preferable effect of heat insulation.

Above-mentioned nano heat-insulating insulation material is the green wood being derived by the space technology for spacecraft insulation Material, with waterproof, fire prevention, anti-corrosion is wear-resisting, various advantages such as insulation, the newest nano ceramics technology of the materials application, heat-insulated Insulating efficiency is above-mentioned to send the heat-insulated soft felt of base to be the most ripe heat-insulated product of flexible ultra high efficiency of current technique in the world up to 90% Product, with remarkable heat-proof quality, extremely low thermal conductivity factor, low-expansion coefficient, low heat shrinkage.

Shown in Figure 9, the fixed seat 300 has draw-in groove 310, and the heating 100 has one end of charging aperture 110 It is fastened in the draw-in groove 310, so that the heating 100 is connected with the fixed seat 300.

Referring to shown in Fig. 1 and Fig. 8, the outer wall of the fixed seat 300 has the fin 320 of multiple protrusions, multiple described The order of fin 320 is arranged, and has interval between the adjacent fin 320.Fin 320 can be high temperature resistant plastic cement or Metal material, has connection siphunculus 400, it is possible to use carry out the heat transfer of self-heating 100 to 3D in the inwall of the fixed seat 300 The plastic cement wire rod for printing pen is preheated, and improves the efficiency of heating surface of leading portion heating 100.

Above-mentioned fixed seat 300 can be using high temperature resistant plastic cement or fixed seat 300 made by metal material.In the present embodiment In, the fixed seat 300 and fin 320 are made up of 30% glass fibre of mass ratio with 70% nylon.

Shown in Figure 9, the connection siphunculus 400 is located at the heating between 100 and the fixed seat 300, described One end of connection siphunculus 400 is fastened in the fixing groove 140 and is communicated in the charging aperture 110, and the other end is fastened on described In draw-in groove 310 and for connecting the feeding device.The internal diameter of the connection siphunculus 400 is 1.5-2.5mm, and external diameter is 3.5- 4.5mm, length is 20-25mm.In the present embodiment, the internal diameter of the connection siphunculus 400 is preferably 2mm, and external diameter is preferably 4mm, length is preferably 23.6mm.

Above-mentioned connection siphunculus 400 can adopt high temperature resistance super teflon tube.Teflon pipe is widely used in various harsh streams The conveying of body.Long-Time Service can be worked under cryogenic temperature and not crisp in the range of -80 DEG C -+280 DEG C using temperature range Change, do not melt at high temperature.Prominent non-stick resistance to bond is excellent, and inside pipe wall does not adhere to colloid and chemicals, therefore will not be Schmutzband is formed in pipe.Excellent electrical insulation capability Teflon is height non-polar material, with good dielectric properties, resistance Greatly, dielectric constant is 2.0 or so.

Referring to shown in Fig. 2 and Fig. 7, the circuit board 500 is connected in the fixed seat 300 and by connecting wire and institute The electrical connection of heating 100 is stated, connecting wire includes the primary lead foot 600 (thin copper wire) and 2 heating wires of 2 NTC temperature resistances Wire 610 (molybdenum filament).Circuit board 500 can be made using PCB.Primary lead foot 600 and heating wire wire 610 are four soft gold Category material is made, and primary lead foot 600 and heating wire wire 610 connect the heat generating components of heating 100 with circuit board 500, because For fixed seat 300 with heating head assembly 100 and collet 200 be permanent bayonet socket fixing assembling, assemble after its position have only One property, fixed seat 300 and circuit board 500 are non-steady fixing assemblings, can be have slight angle activity change, to coordinate nib Central campus pair；After collet 200 loads the cap for brush 700, the heat insulating strip 720 in the cap for brush can automatically by the discharging of hot 100 The front opening center of the 110 centering caps for brush of mouth.

Referring to shown in Fig. 1-Fig. 3, the above-mentioned cap for brush 700 (cap for brush 700 of 3D printing pen 10) is with including housing 710, heat-insulated Bar 720 and protection block 730.

Referring to shown in Fig. 2 and Fig. 3, in the present embodiment, the outer wall of the housing 710 is in arc surfaced.The housing 710 Outer wall is gradually narrowed by one end of the described first opening 711 to one end of the second opening 712 so that the accommodating cavity is in semielliptical Body.

The housing 710 has accommodating cavity, the first opening 711 and the second opening 712, first opening 711 and institute State the second opening 712 and be communicated in the accommodating cavity,

Referring to shown in Fig. 4 and Fig. 6, the opening size of first opening 711 is big compared with the size of the described second opening 712. First opening 711 is 712 relative and rounded with the described second opening, along the cross section of the housing 710, described the One opening 711 is homocentric with the described second opening 712.

The heating 100 is located in the accommodating cavity, and the end of the heating 100 passes second opening 712 And protrude from the housing 710.

It is shown in Figure 4, it is described second opening 712 edge at least provided with two it is described protection blocks 730, when the heating 100 when entering in the accommodating cavity, and the end of the heating 100 can protrude from the protection block 730.In the present embodiment In, the quantity of the protection block 730 is two, and two protection blocks 730 are oppositely arranged.It can be appreciated that the number of protection block 730 Measure to can also be multiple, such as three, four.Multiple protection blocks 730 are uniformly distributed in the end of heating 100.

Shown in Figure 4, the cap for brush 700 has at least two buckles 740 along the edge of the first opening 711, and buckle 740 is used In be connected with the body for printing pen so that the cap for brush 700 is connected on printing pen, now, heating 100, connection siphunculus 400, admittedly Reservation 300 and circuit board 500 are embedded inside the cap for brush 700, be will not fall off, you can realize the material extrusion of 3D printing pen.

The cap for brush 700 of above-mentioned 3D printing pen 10, be also provided with protect block 730, second opening 712 edge at least provided with Two protection blocks 730, when heating 100 is entered in accommodating cavity, the end of heating 100 can protrude from protection block 730, lead to The setting of overprotection block 730 has been effectively isolated the direct exposed of heating 100 end, efficiently avoid heating 100 Contact of the end with user, is not easy to scald user.

Shown in Figure 6, the inwall of the accommodating cavity is provided with multiple heat insulating strips 720 so that the heating 100 There is interval between the inwall of outer wall and the accommodating cavity.The heat insulating strip 720 is on the inwall of the accommodating cavity by described One end of two openings 712 to one end of the described first opening 711 extends.The heat insulating strip 720 uniformly divides in the accommodating cavity Cloth.

It is shown in Figure 4, there are multiple louvres 713 on the housing 710, the louvre 713 is communicated in the appearance Put chamber.

Above-mentioned 3D printing pen 10, the heating 100 that it has has charging aperture 110, discharging opening 120 and tapping channel 130, charging aperture 110 and discharging opening 120 are communicated in tapping channel 130, and tapping channel 130 is main heating region, temperature Can be controllable in 50 DEG C to 210 DEG C intervals, charging aperture 110 is used to be connected with feeding device, and the length of tapping channel 130 is 15-30mm, when the length of heating 100 is 15-30mm, effectively can heat collodion silk under 5V voltages, because there is length to be 20- Used as the preheated zone of heat transfer, collodion silk first passes through preheating zone to the connection siphunculus 400 of 25mm during wire feed, when hank knotting is entered After main heating region, be just easy to be melted, the efficiency of heating surface is very high, nib in continuous wire feed can quick wire feed, be difficult to block up Head, efficiently avoid the plug wire problem of heating 100.In addition, the cap for brush 700 includes housing 710 and heat insulating strip 720；Housing 710 have accommodating cavity, the first opening 711 and the second opening 712, and the first opening 711 is communicated in accommodating with the second opening 712 Chamber, the inwall of accommodating cavity is provided with multiple heat insulating strips 720, when heating 100 is entered in accommodating cavity, the outer wall of heating 100 with There is interval between the inwall of accommodating cavity.By the setting of above-mentioned heat insulating strip 720 so that heating shape between 100 and inwall At interval, it is to avoid the heating of high temperature contact between 100 and the inwall of housing 710 and causes the generation high temperature of housing 710 so that The above-mentioned cap for brush 700 of 3D printing pen 10 is not easy to scald one's hand.

Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.

Embodiment described above only expresses several embodiments of the present utility model, and its description is more concrete and detailed, But therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that common for this area For technical staff, without departing from the concept of the premise utility, some deformations and improvement can also be made, these all belong to In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be defined by claims.

Claims

1. a kind of 3D printing pen, it is characterised in that include：

Heating head, the heating head has charging aperture, discharging opening and tapping channel, and the charging aperture and the discharging opening are equal The tapping channel is communicated in, the charging aperture is used to be connected with feeding device, the length of the tapping channel is 15-30mm；

Fixed seat, the fixed seat has draw-in groove, and there is the heating head one end of charging aperture to be fastened in the draw-in groove, so that Obtain the heating head to be connected with the fixed seat；

The cap for brush, the cap for brush includes housing and heat insulating strip, and the housing has accommodating cavity, the first opening and the second opening, First opening is communicated in the accommodating cavity, the opening size more described second of first opening with the described second opening The size of opening is big；The heating head is located in the accommodating cavity, and the end of the heating head passes second opening and dashes forward For the housing；The inwall of the accommodating cavity is provided with multiple heat insulating strips so that the outer wall of the heating head and the appearance Put and have between the inwall in chamber interval.

2. 3D printing pen according to claim 1, it is characterised in that also including collet, the collet is set in institute State on heating head, and the end of the heating head protrudes from the collet, the cap for brush is set in the outside of the collet.

3. 3D printing pen according to claim 1 and 2, it is characterised in that also including connection siphunculus, the connection siphunculus sets Between the heating head and the fixed seat, one end of the connection siphunculus is communicated in the charging aperture, and the other end is fastened on In the draw-in groove and for connecting the feeding device.

4. 3D printing pen according to claim 3, it is characterised in that the heating head has one end tool of the charging aperture There is fixing groove, the charging aperture is communicated in the fixing groove, and the one end of the connection siphunculus is fastened in the fixing groove.

5. 3D printing pen according to claim 3, it is characterised in that the internal diameter of the connection siphunculus is 1.5-2.5mm, outward Footpath is 3.5-4.5mm, and length is 20-25mm.

6. 3D printing pen according to claim 1 and 2, it is characterised in that the outer wall of the fixed seat has multiple protrusions Fin, multiple fin orders arrange, and have interval between the adjacent fin.

7. 3D printing pen according to claim 1 and 2, it is characterised in that the edge of second opening is provided with least two Individual protection block, when the heating head is entered in the accommodating cavity, the end of the heating head can protrude from the protection block.

8. 3D printing pen according to claim 1 and 2, it is characterised in that there are multiple louvres on the housing, it is described Louvre is communicated in the accommodating cavity.