CN108995213A - A kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow - Google Patents

A kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow Download PDF

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Publication number
CN108995213A
CN108995213A CN201811108668.2A CN201811108668A CN108995213A CN 108995213 A CN108995213 A CN 108995213A CN 201811108668 A CN201811108668 A CN 201811108668A CN 108995213 A CN108995213 A CN 108995213A
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CN
China
Prior art keywords
heater box
nozzle body
piston
lateral wall
fixed
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Pending
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CN201811108668.2A
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Chinese (zh)
Inventor
王刚
蔡颖军
肖平
章宁娟
桂凯旋
郭跃东
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Anhui Polytechnic University
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Anhui Polytechnic University
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Application filed by Anhui Polytechnic University filed Critical Anhui Polytechnic University
Priority to CN201811108668.2A priority Critical patent/CN108995213A/en
Publication of CN108995213A publication Critical patent/CN108995213A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205Means for applying layers
    • B29C64/209Heads; Nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Nozzles (AREA)
  • Coating Apparatus (AREA)

Abstract

The invention discloses a kind of adjustable self-priming anti-wire drawing 3D printing spray heads of flow, including stock chest, conveying pipeline, motor, nozzle body, heater box and fixed plate, the inside of the heater box is equipped with heating room, the inside of the heater box lateral wall is disposed with heating tube in the shape of a spiral, side at the top of the heater box is welded with the fixed plate perpendicular with heater box, the fixed plate lateral wall is welded with stock chest close to the top of heater box side, the middle position of the storing trench bottom is equipped with discharge nozzle, the side of the discharge nozzle lateral wall is connected with conveying pipeline, and conveying pipeline extends to heating chamber far from one end of discharge nozzle.The present invention on the inside of third piston by being fixed with the magnet block opposite with electromagnetism ferromagnetism, third piston can be attracted in order to generate magnetic force using electromagnet after nozzle body stops spraying of material, the inside of dashpot is set to generate negative pressure, to be drawn to the material remained at discharge port position, anti-wire drawing.

Description

A kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow
Technical field
The present invention relates to 3D printing technique field, specially a kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow.
Background technique
3D printing, that is, rapid shaping technique one kind, it is one kind based on digital model file, with powdered gold Belong to or the adhesive materials such as plastics, constructs the technology of object by layer-by-layer printing, 3D printing is usually using number Technologic material printer is often used for modeling in fields such as mold manufacture, industrial designs come what is realized, after be gradually available for one The direct manufacture of a little products has had using components made of the printing of this technology.
The realization of 3D printing technique depends on 3D printer, and the technology contents of existing 3D printer mainly have: input is soft Part data command manipulates 3D printer, and Filamentous heat-fusible materials heating and melting solidifies after being squeezed out by printing head, It sprays, is deposited on print job deck plate or preceding layer oneself cured material, temperature is low from spray head after hot melt material fusing Start to solidify after solidification temperature, final finished is formed by the layer upon layer of material.
Currently, existing 3D printing spray head is not easy to automatic sucking material during use, it is often necessary to utilize spray Head uses after carrying out heating fusing to material, and since material is larger in spray head inner flow velocity, material heats inside spray head It is even to be easy uneven heating, and since spray head is easy to distribute material heat, is easy that material is made to be easy to produce in the inside of spray head Raw solidification, results in blockage to the inside of spray head, injection flow size is single, is not easy to that flow is adjusted, and supplies consumption It is not easy to be replenished in time, is easy that wire drawing occurs during stopping using spray head, influence the using effect of spray head.
Summary of the invention
The purpose of the present invention is to provide a kind of adjustable self-priming anti-wire drawing 3D printing spray heads of flow, to solve above-mentioned back The existing 3D printing spray head proposed in scape technology is not easy to automatic sucking material during use, and material uneven heating is even, It is easy that material is made to be easy to produce solidification in the inside of spray head, results in blockage to the inside of spray head, injection flow size is single, and object Material consumption is not easy to be replenished in time, and is easy that wire drawing occurs during stopping using spray head, the using effect for influencing spray head is asked Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of adjustable self-priming anti-wire drawing 3D of flow is beaten Spray head, including stock chest, conveying pipeline, motor, nozzle body, heater box and fixed plate are printed, the inside of the heater box, which is equipped with, to be added Hot cell, the inside of the heater box lateral wall are disposed with heating tube in the shape of a spiral, the side at the top of the heater box be welded with The perpendicular fixed plate of heater box, the fixed plate lateral wall are welded with stock chest, the storage close to the top of heater box side The middle position of hopper bottom is equipped with discharge nozzle, and the side of the discharge nozzle lateral wall is connected with conveying pipeline, and conveying pipeline is remote The one end for separating out expects pipe extends to heating chamber, and the inside of the discharge nozzle is interspersed with the first motion bar, first activity One end of bar is fixed with the first piston matched with discharge nozzle inner sidewall, and the other end of the first motion bar extends to discharge nozzle Bottom end, be welded with support plate on the fixed plate lateral wall immediately below the stock chest, electricity be installed at the top of the support plate Machine, the output end of the motor is fixed with the first cam, and the first cam is equipped with far from the outside of motor one end by bearing First connecting rod is fixed with shaft on the fixed plate lateral wall between the support plate and stock chest, and the shaft passes through belt Wheel mechanism is connected with the output end of motor, and the shaft is fixed with the second cam far from one end of fixed plate, and described second is convex Take turns the outside far from shaft one end and the second connecting rod be equipped with by bearing, and the one end of the second connecting rod far from the second cam and First motion bar is hinged, and the middle position on the inside of the heater box is equipped with mounting groove, the heating at the installation groove location Nozzle body is installed on the inside of case, and is welded with connecting plate between nozzle body and heater box, one inside the nozzle body Side is equipped with suction slot, and blow tank is equipped with inside the nozzle body of suction slot side, and the inside of the suction slot is equipped with second Piston, the middle position at the top of the second piston are fixed with the second motion bar, and second motion bar is far from second piston One end extend to nozzle body top and be hinged with first connecting rod, the nozzle body lateral wall of the second piston side On be connected with the first feed pipe, first feed pipe is connected with suction slot, and the first feed pipe far from nozzle body one End is connected with the side of heater box lateral wall bottom end, and the is connected on the nozzle body lateral wall of the second piston other side Two feed pipes, the one end of second feed pipe far from nozzle body are connected with the first feed pipe, second feed pipe It is internal to be all disposed with blocking ball with the second feed pipe inside the first feed pipe of nozzle body side, and the first feed pipe with The inside of second feed pipe is all equipped with the annular protrusion matched with blocking ball, the suction slot of the second piston two sides and discharging It is all equipped with conduit between slot, and check valve is all installed on the conduit of two sides, the nozzle body lateral wall at the discharging groove location On be evenly arranged sub-feed tube, solenoid valve is all installed on the sub-feed tube, and the one end of sub-feed tube far from nozzle body with plus Hot tank is connected, it is described discharging groove location at nozzle body lateral wall bottom end side be equipped with dashpot, the dashpot with go out Hopper is connected, and one end inside the dashpot is fixed with electromagnet, dashpot of the electromagnet close to blow tank side Inside is equipped with third piston, reset spring is fixed between the third piston and electromagnet, and the inside of third piston is fixed There is the magnet block opposite with electromagnetism ferromagnetism, controller is fixed at the top of the nozzle body, the heating tube, electricity are mechanical, electrical Magnet valve is all electrically connected with the controller by conducting wire with electromagnet.
Preferably, the heater box is annular in shape, and the heater box interior on the outside of heating tube is equipped with thermal insulation layer.
Preferably, the sub-feed tube radical connected between the nozzle body and heater box is 3-5 root.
Preferably, the nozzle body bottom at the discharging groove location is equipped with discharge port.
Compared with prior art, the beneficial effects of the present invention are:
(1): by being connected separately with the first charging between the nozzle body lateral wall and heater box of second piston two sides Pipe and the second feed pipe, and drive second piston to be gone up and down using motor, and drive inside discharge nozzle simultaneously using motor First piston is gone up and down, not only can in order to drive second piston in the reciprocal elevating movement in the inside of suction slot using motor, The internal suction material of suction slot is used automatically using the first feed pipe and the second feed pipe, in the process of second piston lifting It is middle complete the material inside sucking suction slot squeeze be delivered to the inside of blow tank and spray, and can turn in motor First piston reciprocal elevating movement is driven while dynamic, unfused material is added to inside heater box and melts by energy saving Change, keeps the balance of heater box materials inside, keep continuing working for spray head.
(2): being evenly arranged by the nozzle body lateral wall side at discharging groove location and be connected with heater box Sub-feed tube, and solenoid valve is all installed on sub-feed tube, it can be opened in order to control solenoid valve during spraying material Or closing opens or closes sub-feed tube, convenient for the inside that a part of material is delivered to heater box is recycled benefit using sub-feed tube With, reduce blow tank inside pressure, so that the mass flow size that discharge port ejects be adjusted.
(3): by the installation groove location that is fixed on nozzle body on the inside of heater box, and in the inside of heater box side wall It, can be in order to utilize thermal insulation layer to reduce the loss of heater box heat, energy saving equipped with thermal insulation layer, and can be heated in order to utilize The heat of case keeps the temperature of nozzle body, avoids nozzle body temperature reduction that materials inside blocking is made to influence to use, Realize the recycling of heat.
(4): by being equipped with the dashpot being connected with blow tank in the side of nozzle body lateral wall, and in dashpot It is fixed with reset spring between the third piston and electromagnet in portion, it not only can be in order to the process sprayed in material using dashpot Pressure inside middle buffering blow tank, and third is driven using reset spring in the gap that second piston back and forth goes up and down pressing materials Piston reset is sprayed dashpot materials inside by discharge port, keeps the continuity of material injection at discharge port position.
(5):, can be in order in spray head by being fixed with the magnet block opposite with electromagnetism ferromagnetism on the inside of third piston Main body attracts third piston using electromagnet generation magnetic force after stopping spraying of material, generates the inside of dashpot negative Pressure, to be drawn to the material remained at discharge port position, anti-wire drawing.
Detailed description of the invention
Fig. 1 faces schematic diagram of internal structure for of the invention;
Fig. 2 is heater box and nozzle body schematic diagram of internal structure of the invention;
Fig. 3 is nozzle body schematic diagram of internal structure of the invention;
Fig. 4 is heater box schematic diagram of internal structure of the invention;
Fig. 5 is motor driving structure schematic diagram of the invention;
Fig. 6 is the second feed pipe and blocking spherical structure schematic diagram of the invention.
In figure: 1, stock chest;2, the first motion bar;3, conveying pipeline;4, motor;5, first connecting rod;6, the second motion bar; 7, nozzle body;8, room is heated;9, heater box;10, heating tube;11, thermal insulation layer;12, connecting plate;13, solenoid valve;14, sub-material Pipe;15, support plate;16, the first cam;17, fixed plate;18, the second cam;19, the second connecting rod;20, discharge nozzle;21, One piston;22, conduit;23, controller;24, the second feed pipe;25, ball is blocked;26, the first feed pipe;27, suction slot;28, Second piston;29, check valve;30, discharge port;31, blow tank;32, third piston;33, reset spring;34, electromagnet;35, Dashpot;36, mounting groove;37, shaft;38, magnet block;39, annular protrusion.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-6 is please referred to, a kind of embodiment provided by the invention: a kind of adjustable self-priming anti-wire drawing 3D printing spray of flow Head, including stock chest 1, conveying pipeline 3, motor 4, nozzle body 7, heater box 9 and fixed plate 17, the inside of heater box 9, which is equipped with, to be added Hot cell 8, the inside of 9 lateral wall of heater box are disposed with heating tube 10 in the shape of a spiral, and heater box 9 is annular in shape, 10 outside of heating tube 9 interior of heater box be equipped with thermal insulation layer 11, the side at the top of heater box 9 is welded with the fixed plate perpendicular with heater box 9 17,17 lateral wall of fixed plate is welded with stock chest 1 close to the top of 9 side of heater box, and the middle position of 1 bottom of stock chest is set There is discharge nozzle 20, the side of 20 lateral wall of discharge nozzle is connected with conveying pipeline 3, and conveying pipeline 3 extends far from one end of discharge nozzle 20 To heating room 8, the inside of discharge nozzle 20 is interspersed with the first motion bar 2, and one end of the first motion bar 2 is fixed with and discharge nozzle The first piston 21 that 20 inner sidewalls match, and the other end of the first motion bar 2 extends to the bottom end of discharge nozzle 20, stock chest 1 Support plate 15 is welded on 17 lateral wall of fixed plate of underface, the top of support plate 15 is equipped with motor 4, the output of motor 4 End is fixed with the first cam 16, and the first cam 16 is equipped with first connecting rod 5 by bearing far from the outside of 4 one end of motor, Shaft 37 is fixed on 17 lateral wall of fixed plate between support plate 15 and stock chest 1, shaft 37 passes through pulley mechanism and electricity The output end of machine 4 is connected, and shaft 37 is fixed with the second cam 18 far from one end of fixed plate 17, and the second cam 18 is far from shaft The outside of 37 one end is equipped with the second connecting rod 19 by bearing, and the one end of the second connecting rod 19 far from the second cam 18 and the One motion bar 2 is hinged, and the middle position of the inside of heater box 9 is equipped with mounting groove 36, in the heater box 9 at 36 position of mounting groove Side is equipped with nozzle body 7, and connecting plate 12 is welded between nozzle body 7 and heater box 9, the side inside nozzle body 7 Equipped with suction slot 27, blow tank 31, the nozzle body at 31 position of blow tank are equipped with inside the nozzle body 7 of 27 side of suction slot 7 bottoms are equipped with discharge port 30, and the inside of suction slot 27 is equipped with second piston 28, and the middle position at 28 top of second piston is fixed There is the second motion bar 6, the second motion bar 6 extends to 7 top of nozzle body far from one end of second piston 28 and connect with first Bar 5 is hinged, and is connected with the first feed pipe 26 on 7 lateral wall of nozzle body of 28 side of second piston, the first feed pipe 26 with Suction slot 27 is connected, and the one end of the first feed pipe 26 far from nozzle body 7 is connected with the side of 9 lateral wall bottom end of heater box It connects, the second feed pipe 24 is connected on 7 lateral wall of nozzle body of 28 other side of second piston, the second feed pipe 24 is far from spray head One end of main body 7 is connected with the first feed pipe 26, and the inside of the second feed pipe 24 and the second feed pipe 24 are close to nozzle body 7 Blocking ball 25 is all disposed with inside first feed pipe 26 of side, and the inside of the first feed pipe 26 and the second feed pipe 24 is all set There is the annular protrusion 39 matched with blocking ball 25, is all equipped with and leads between the suction slot 27 and blow tank 31 of 28 two sides of second piston Pipe 22, and check valve 29 is all installed on two sides conduit 22, it is evenly arranged on 7 lateral wall of nozzle body at 31 position of blow tank There is sub-feed tube 14,14 radical of sub-feed tube connected between nozzle body 7 and heater box 9 is 3-5 root, is all equipped on sub-feed tube 14 Solenoid valve 13, and the one end of sub-feed tube 14 far from nozzle body 7 is connected with heater box 9, the spray head master at 31 position of blow tank 7 lateral wall bottom end side of body is equipped with dashpot 35, and dashpot 35 is connected with blow tank 31, and one end inside dashpot 35 is fixed Have an electromagnet 34, electromagnet 34 is equipped with third piston 32 inside the dashpot 35 of 31 side of blow tank, third piston 32 with Reset spring 33 is fixed between electromagnet 34, and the inside of third piston 32 is fixed with and the magnetic opposite magnet of electromagnet 34 Block 38, the top of nozzle body 7 are fixed with controller 23, and heating tube 10, motor 4, solenoid valve 23 are with electromagnet 34 all by leading Line is electrically connected with controller 23.
Working principle: when it is desired to be used, external power supply controlled using, controller 23 heating tube 10 and is powered on pair 9 materials inside of heater box is heated, and controller 23 controls motor 4 and is powered on, and ejects as needed from discharge port 30 The size of mass flow controls solenoid valve 13 using controller 23 and opens or closes, adjusts the opening and closing of sub-feed tube 14, During use, the rotation of motor 4 drives the rotation of the first cam 16, and the second motion bar 6 is driven under the action of first connecting rod 5 It is back and forth gone up and down, to make second piston 28 carry out reciprocal elevating movement in the inside of suction slot 27, in second piston 28 During rising, due to being equipped with blocking ball 25 in the inside of the second feed pipe 24, second piston 28 is to being positioned above suction slot Material inside 27 is squeezed, blocking ball 25 due to the pressure that is generated in self gravity and extrusion process tightly with annular protrusion 39 is inconsistent, is closed the second feed pipe 24, and material is sprayed by the conduit 22 of top to the inside of blow tank 31, and due to leading Check valve 29 is all installed, material will not be back to the suction slot of 28 lower section of second piston by underlying conduit 22 on pipe 22 Inside 27, since the inside of blow tank 31 is there are pressure in course of injection, material a part is ejected by discharge port 30, a part Enter the inside of heater box 9 by open sub-feed tube 14, reduce the flow that material is ejected by discharge port 30, and another part into The inside for entering dashpot 35 squeezes third piston 32, and while second piston 28 rises, makes suction below Negative pressure is generated inside slot 27, due to being equipped with check valve 29, the suction slot of 28 lower section of second piston on underlying conduit 22 Material inside 27 26 pairs of the first feed pipes of inner utilization heating room 8 is drawn, and drives second piston 28 to decline in motor 4 During, eject material by underlying conduit 22, and carried out by inside of second feed pipe 22 to suction slot 27 Material is supplemented, realize the self-priming to material and is ejected, and moves to 27 inner tip of suction slot or bottom end in second piston 28 During, to extruding is no longer generated inside blow tank 31, pressure keeps balance, makes the under the action of reset spring 33 at this time Three pistons 32 reset, and the material inside dashpot 35 is squeezed out and is ejected by discharge port 30, keep nozzle body 7 to discharge continuous Property, and during motor 4 rotates, it drives the second cam 18 to rotate using pulley mechanism, first piston 21 is made to discharge 20 inside elevating movement of pipe, it is intermittent that conveying pipeline 3 is made to be connected with discharge nozzle 20, so that material is entered heater box 9 by conveying pipeline 3 Inside, and when nozzle body 7 is stopped using, controller 23 controls electromagnet 34 and is powered, and attracts third piston 32, makes The inside of dashpot 35 generates negative pressure, draws to the material at 30 position of discharge port, avoids residual material wire drawing.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

Claims (4)

1. a kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow, including stock chest (1), conveying pipeline (3), motor (4), spray Head main body (7), heater box (9) and fixed plate (17), it is characterised in that: the inside of the heater box (9) is equipped with heating room (8), The inside of heater box (9) lateral wall is disposed with heating tube (10) in the shape of a spiral, the side welding at the top of the heater box (9) Have and is welded with heater box (9) perpendicular fixed plate (17), fixed plate (17) lateral wall close to the top of heater box (9) side It is connected to stock chest (1), the middle position of stock chest (1) bottom is equipped with discharge nozzle (20), on the outside of the discharge nozzle (20) The side of wall is connected with conveying pipeline (3), and conveying pipeline (3) extends to heating room (8) inside, institute far from the one end of discharge nozzle (20) The inside for stating discharge nozzle (20) is interspersed with the first motion bar (2), and one end of first motion bar (2) is fixed with and discharge nozzle (20) first piston (21) that inner sidewall matches, and the other end of the first motion bar (2) extends to the bottom end of discharge nozzle (20), It is welded with support plate (15) on fixed plate (17) lateral wall immediately below the stock chest (1), the top of the support plate (15) It is equipped with motor (4), the output end of the motor (4) is fixed with the first cam (16), and the first cam (16) is far from motor (4) The outside of one end is equipped with first connecting rod (5) by bearing, the fixed plate between the support plate (15) and stock chest (1) (17) it being fixed on lateral wall shaft (37), the shaft (37) is connected by pulley mechanism with the output end of motor (4), The shaft (37) is fixed with the second cam (18) far from the one end of fixed plate (17), and second cam (18) is far from shaft (37) outside of one end is equipped with the second connecting rod (19) by bearing, and the second connecting rod (19) is far from the second cam (18) One end is hinged with the first motion bar (2), and the middle position on the inside of the heater box (9) is equipped with mounting groove (36), the peace It is equipped with nozzle body (7) on the inside of heater box (9) at tankage (36) position, and is welded between nozzle body (7) and heater box (9) It is connected to connecting plate (12), the internal side of the nozzle body (7) is equipped with suction slot (27), the spray of suction slot (27) side Blow tank (31) are equipped with inside head main body (7), the inside of the suction slot (27) is equipped with second piston (28), the second piston (28) middle position at the top of is fixed with the second motion bar (6), and the one of second motion bar (6) separate second piston (28) End extends to nozzle body (7) top and is hinged with first connecting rod (5), the nozzle body of second piston (28) side (7) be connected on lateral wall the first feed pipe (26), first feed pipe (26) is connected with suction slot (27), and first into Expects pipe (26) is connected far from the one end of nozzle body (7) with the side of heater box (9) lateral wall bottom end, the second piston (28) it is connected with the second feed pipe (24) on nozzle body (7) lateral wall of the other side, second feed pipe (24) is far from spray One end of head main body (7) is connected with the first feed pipe (26), the inside of second feed pipe (24) and the second feed pipe (24) blocking ball (25), and the first feed pipe are all disposed with inside first feed pipe (26) of nozzle body (7) side (26) annular protrusion (39) matched with blocking ball (25), the second piston are all equipped with the inside of the second feed pipe (24) (28) conduit (22) all are equipped between the suction slot (27) and blow tank (31) of two sides, and list is all installed on two sides conduit (22) To valve (29), it has been evenly arranged sub-feed tube (14) on nozzle body (7) lateral wall at blow tank (31) position, described point It is all equipped in expects pipe (14) solenoid valve (13), and sub-feed tube (14) is connected far from the one end of nozzle body (7) with heater box (9) It connects, nozzle body (7) the lateral wall bottom end side at blow tank (31) position is equipped with dashpot (35), the dashpot (35) it is connected with blow tank (31), the internal one end of the dashpot (35) is fixed with electromagnet (34), the electromagnet (34) third piston (32), the third piston (32) and electromagnetism are equipped with inside the dashpot (35) of blow tank (31) side It is fixed with reset spring (33), and is fixed on the inside of third piston (32) magnetic opposite with electromagnet (34) between iron (34) Magnet block (38) is fixed with controller (23) at the top of the nozzle body (7), the heating tube (10), motor (4), electromagnetism Valve (23) is all electrically connected by conducting wire with controller (23) with electromagnet (34).
2. the adjustable self-priming anti-wire drawing 3D printing spray head of a kind of flow according to claim 1, it is characterised in that: described Heater box (9) is annular in shape, and heater box (9) interior on the outside of heating tube (10) is equipped with thermal insulation layer (11).
3. the adjustable self-priming anti-wire drawing 3D printing spray head of a kind of flow according to claim 1, it is characterised in that: described Sub-feed tube (14) radical connected between nozzle body (7) and heater box (9) is 3-5 root.
4. the adjustable self-priming anti-wire drawing 3D printing spray head of a kind of flow according to claim 1, it is characterised in that: described Nozzle body (7) bottom at blow tank (31) position is equipped with discharge port (30).
CN201811108668.2A 2018-09-21 2018-09-21 A kind of adjustable self-priming anti-wire drawing 3D printing spray head of flow Pending CN108995213A (en)

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CN112428582A (en) * 2020-10-30 2021-03-02 王勇 3D printer pumpback prevents drawing wire subassembly based on fused deposition
CN113019800A (en) * 2021-03-03 2021-06-25 宿州市尖端木业有限公司 Floor gluing auxiliary device for gluing two sides of floor and avoiding accumulation
CN115486471A (en) * 2022-10-10 2022-12-20 河北同福健康产业有限公司 Automatic pastry production equipment
CN116177708A (en) * 2023-01-17 2023-05-30 福建省龙氟新材料有限公司 Waste water collecting tank for hydrogen fluoride production

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CN204560926U (en) * 2015-03-19 2015-08-19 杭州铭展网络科技有限公司 The continuous feeding system of viscous state material 3D printer
CN105499577A (en) * 2016-01-01 2016-04-20 三峡大学 3D printing head for molten metal and printing method
CN105818389A (en) * 2016-05-07 2016-08-03 浙江大学 Self-sucking biological 3D printing nozzle device and method thereof
CN107031044A (en) * 2016-11-23 2017-08-11 扬州大学 Pneumatic piston 3D printing shower nozzle
CN207077765U (en) * 2017-08-23 2018-03-09 四川建筑职业技术学院 A kind of anti-wire drawing 3D printing shower nozzle using suction structure in electromagnetic type cavity
CN207607113U (en) * 2017-08-30 2018-07-13 南宁壶兰科技有限公司 A kind of SLA types 3D printer

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CN112428582A (en) * 2020-10-30 2021-03-02 王勇 3D printer pumpback prevents drawing wire subassembly based on fused deposition
CN113019800A (en) * 2021-03-03 2021-06-25 宿州市尖端木业有限公司 Floor gluing auxiliary device for gluing two sides of floor and avoiding accumulation
CN115486471A (en) * 2022-10-10 2022-12-20 河北同福健康产业有限公司 Automatic pastry production equipment
CN116177708A (en) * 2023-01-17 2023-05-30 福建省龙氟新材料有限公司 Waste water collecting tank for hydrogen fluoride production
CN116177708B (en) * 2023-01-17 2024-01-26 福建省龙氟新材料有限公司 Waste water collecting tank for hydrogen fluoride production

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