CN209273980U

CN209273980U - A kind of 3D printer spray head

Info

Publication number: CN209273980U
Application number: CN201920025120.5U
Authority: CN
Inventors: 张志峰; 涂雯
Original assignee: Shanghai Qinchi Mdt Infotech Ltd
Current assignee: Shanghai Qinchi Mdt Infotech Ltd
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2019-08-20
Anticipated expiration: 2029-01-08

Abstract

The utility model relates to a kind of 3D printer spray heads, including print platform, two sides are provided with fixed station at the top of the print platform, guide-track groove is offered at the top of the fixed station, guide-track groove inner cavity one end is fixedly installed with the first stepper motor, first stepper motor output shaft is fixedly connected with threaded rod, movable plate is provided at the top of the guide-track groove, the movable plate bottom is connect by nut with threaded rod, transverse slat is fixedly installed between at the top of the movable plate, electric telescopic rod is symmetrically installed at the top of the transverse slat, the electric telescopic rod mobile terminal is fixedly connected with lifter plate through transverse slat, the lifter plate intracavity bottom is provided with fixed plate, the fixed plate side is provided with movable block, it is adjusted convenient for the position to spray head, spray head can carry out the effect of pre-fusion mixing to two different materials simultaneously, increase The type of printed material improves the performance of material, increases heat dissipation effect when nozzle printing, improves the efficiency of printing.

Description

A kind of 3D printer spray head

Technical field

The utility model relates to a kind of 3D printer spray heads, belong to 3D printer technical field.

Background technique

3D printing, i.e. one kind of rapid shaping technique, 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, the technology is in jewelry, footwear, work Industry design, building, engineering and construction, automobile, aerospace, dentistry and medical industries, education, GIS-Geographic Information System, building work Journey, gun and other field are all applied, and 3D printing technique basic principle is all layered manufacturing, by rapid prototyping machine in X- The cross sectional shape of workpiece is formed in Y plane by scanning form, and discontinuously makees the displacement of slice thickness, most end form in Z coordinate At three dimensional articles, it is flat that rapid shaping technique currently on the market is divided into 3DP technology, FDM melt-laminated molding technology, SLA solid Version printing technology, SLS precinct laser sintering etc., general spray head heating melting effect is bad currently on the market, and heat dissipation effect is not Obviously, printed material is caused to melt in stainless steel trunnion, to influence the normal work of 3D printer, and the temperature of spray head It is easy excessively high and causes to damage.

Utility model content

The purpose of this utility model is to provide a kind of 3D printer spray heads, move spray head longitudinally by guide-track groove It is dynamic, it can move up and down spray head by electric telescopic rod, move spray head laterally by second stepper motor and fixed plate It is dynamic, it is adjusted convenient for the position to spray head, while spray head can carry out the effect of pre-fusion mixing to two different materials, The type for increasing printed material improves the performance of material, provides a possibility that more and higher practical for 3D printing Property, vane rotation is stirred by minitype motor driving, enables two kinds of materials to be sufficiently mixed uniform effect, avoids because of material Material combine it is insufficient caused by final product quality problem, being used cooperatively for piece and cooling fan is checked by radiating, so that heat dissipation effect Fruit is more preferable, prevents printed material from melting in trunnion and influences the normal work of 3D printer, improve the efficiency of printing, with solution Certainly the problems mentioned above in the background art.

To achieve the above object, the utility model provides the following technical solutions:

A kind of 3D printer spray head, including print platform, print platform top two sides are provided with fixed station, described Guide-track groove is offered at the top of fixed station, guide-track groove inner cavity one end is fixedly installed with the first stepper motor, first stepping Motor output shaft is fixedly connected with threaded rod, is provided with movable plate at the top of the guide-track groove, the movable plate bottom passes through nut It is connect with threaded rod, is fixedly installed transverse slat between the movable plate top, is symmetrically installed with electric expansion at the top of the transverse slat Bar, the electric telescopic rod mobile terminal are fixedly connected with lifter plate through transverse slat, and the lifter plate intracavity bottom is provided with fixation Plate, the fixed plate side are provided with movable block, and the movable block inner cavity is fixedly installed with second stepper motor, the lifter plate Inner cavity top is fixedly installed fixed link, is sheathed on the outside of fixed link at the top of the movable block, and the movable block bottom is through liter Drop plate is fixedly connected with mounting plate, and the mounting plate bottom is fixedly installed with head body, and the head body inner cavity fixation is set It is equipped with partition, is symmetrically arranged with trunnion at the top of the partition, the trunnion inner cavity is provided with feed pipe, and the partition bottom is set It is equipped with melting tube, the feed pipe is connected to through partition with melting tube, and the trunnion two sides are evenly arranged with heat dissipation and check piece, described Heat dissipation checks piece two sides and is provided with cooling fan, and the cooling fan is fixedly mounted on head body inner wall, consolidates between the trunnion Dingan County is equipped with micromotor, and the micromotor is fixedly connected with shaft through partition, and stirring rotation is provided on the outside of the shaft Leaf, the melting tube outside are provided with thermally conductive sheet, are provided with heating plate on the outside of the thermally conductive sheet, the melting bottom of the tube offers Discharge bucket, the discharge bucket bottom offer spout, are provided with shield, the shield top on the outside of the discharge bucket, spout Portion is connect with head body bottom.

Further, placement plate is connected with by spring at the top of the print platform, and the placement plate is located at spray head sheet Below body.

Further, the threaded rod both ends are fixedly mounted in guide-track groove by bearing, the threaded rod two sides setting There is guide rod, the guide rod is fixedly connected with guide-track groove inner wall, and the nut is sheathed on the outside of guide rod.

Further, the lifter plate two sides are provided with sliding rail, and sliding slot, the sliding rail insertion are offered on the movable plate In the sliding slot.

Further, gear bar is fixedly installed at the top of the fixed plate, the second stepper motor output shaft is through shifting Motion block is fixedly connected with gear ring, and the gear ring engages connection with gear bar.

Further, it is fixedly installed reinforcing rod between the trunnion, connects at the top of the reinforcing rod bottom and micromotor It connects.

Further, it is located to radiate to check on the trunnion and offers heat release hole between piece, in the head body and dissipates Air-heater opposite position offers through-hole, and Air Filter is provided in through-hole.

Further, the shield surface offers ventilation hole.

The beneficial effects of the utility model are: a kind of 3D printer spray head involved in the utility model, passes through setting Guide-track groove drives threaded rod rotation by the first stepper motor, makes nut drive movable plate mobile, to realize the longitudinal direction of spray head It is mobile, by the way that electric telescopic rod is arranged, drives lifter plate to move up and down, to realize moving up and down for spray head, moved by setting Motion block, second stepper motor drive gear ring rotation, make movable block that spray head be driven to realize with the gear bar cooperation in fixed plate horizontal To movement, accurately adjusted convenient for the position to spray head, it, can be to two kinds not by two feed pipes of setting and melting tube Same material carries out the effect of pre-fusion mixing, increases the type of printed material, improves the performance of material, mention for 3D printing A possibility that more and higher practicability have been supplied, printed material is prevented so that heat dissipation effect is more preferable by setting cooling fan The normal work that 3D printer is melted and influenced in trunnion is stirred by minitype motor driving and is revolved by the way that micromotor is arranged Leaf rotation, enable two kinds of materials to be sufficiently mixed uniform effect, avoid because material combine it is insufficient caused by finished product Quality problems.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel specific embodiment is used to explain the utility model together, does not constitute limitations of the present invention.

Fig. 1 is a kind of overall structure diagram of 3D printer spray head of the utility model；

Fig. 2 is a kind of guide rail slot structure schematic diagram of 3D printer spray head of the utility model；

Fig. 3 is a kind of cross-sectional view of 3D printer spray head of the utility model；

Fig. 4 is a kind of lifter plate sectional view of 3D printer spray head of the utility model；

Fig. 5 is a kind of nozzle structure schematic diagram of 3D printer spray head of the utility model；

Figure label: 1, print platform；2, fixed station；3, guide-track groove；4, the first stepper motor；5, threaded rod；6, mobile Plate；7, nut；8, transverse slat；9, electric telescopic rod；10, lifter plate；11, fixed plate；12, movable block；13, second stepper motor； 14, fixed link；15, mounting plate；16, head body；17, partition；18, trunnion；19, feed pipe；20, melting tube；21, heat dissipation is checked Piece；22, cooling fan；23, micromotor；24, shaft；25, vane is stirred；26, thermally conductive sheet；27, heating plate；28, discharge bucket； 29, spout；30, shield；31, placement plate；32, guide rod；33, sliding rail；34, sliding slot；35, gear bar；36, gear ring；37, Reinforcing rod.

Specific embodiment

It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.

Fig. 1-Fig. 5 is please referred to, the utility model provides a kind of technical solution

A kind of 3D printer spray head, including print platform 1, the 1 top two sides of print platform are provided with fixed station 2, Guide-track groove 3 is offered at the top of the fixed station 2, described 3 inner cavity one end of guide-track groove is fixedly installed with the first stepper motor 4, described First stepper motor, 4 output shaft is fixedly connected with threaded rod 5, and movable plate 6, the movable plate 6 are provided at the top of the guide-track groove 3 Bottom is connect by nut 7 with threaded rod 5, drives threaded rod 5 to rotate by the first stepper motor 4, nut 7 is made to drive movable plate 6 is mobile, to realize the longitudinal movement of spray head, transverse slat 8,8 top of transverse slat are fixedly installed between 6 top of movable plate It is symmetrically installed with electric telescopic rod 9,9 mobile terminal of electric telescopic rod is fixedly connected with lifter plate 10 through transverse slat 8, electronic to stretch Contracting bar 9 drives lifter plate 10 to move up and down, to realize moving up and down for spray head, 10 intracavity bottom of lifter plate is provided with solid Fixed board 11,11 side of fixed plate are provided with movable block 12, and 12 inner cavity of movable block is fixedly installed with second stepper motor 13, second stepper motor 13 drives gear ring 36 to rotate, and so that movable block 12 is driven spray head with the cooperation of gear bar 35 in fixed plate It realizes transverse shifting, is accurately adjusted convenient for the position to spray head, 10 inner cavity top of lifter plate is fixedly installed solid Fixed pole 14 is sheathed on 14 outside of fixed link at the top of the movable block 12, guarantees the stability when movable block 12 is mobile, increase and adjust Accuracy when section, 12 bottom of movable block are fixedly connected with mounting plate 15,15 bottom of mounting plate through lifter plate 10 It is fixedly installed with head body 16,16 inner cavity of head body is fixedly installed partition 17, and 17 top of partition is symmetrically set Be equipped with trunnion 18,18 inner cavity of trunnion is provided with feed pipe 19, and 17 bottom of partition is provided with melting tube 20, it is described into Expects pipe 19 is connected to through partition 17 with melting tube 20, and two different materials can be carried out with the effect of pre-fusion mixing, increased The type of printed material, improves the performance of material, provides a possibility that more and higher practicability, institute for 3D printing It states 18 two sides of trunnion and is evenly arranged with heat dissipation and check piece 21, the heat dissipation checks 21 two sides of piece and is provided with cooling fan 22, the heat dissipation Blower 22 is fixedly mounted on 16 inner wall of head body so that heat dissipation effect is more preferable, prevent printed material melted in trunnion 18 and The normal work for influencing 3D printer is fixedly installed with micromotor 23, institute between the trunnion 18 by the way that micromotor is arranged It states micromotor 23 and is fixedly connected with shaft 24 through partition 17, stirring vane 25 is provided on the outside of the shaft 24, it is described molten Melt and be provided with thermally conductive sheet 26 on the outside of pipe 20, heating plate 27 is provided on the outside of the thermally conductive sheet 26, heating plate 27 is in melting tube 20 Material carry out heating melting, then by micromotor 23 drive stirring vane 25 rotate, two kinds of materials are sufficiently mixed Close uniform effect, avoid because material combine it is insufficient caused by final product quality problem, 20 bottom of melting tube opens up There is discharge bucket 28,28 bottom of discharge bucket offers spout 29, is provided with shield on the outside of the discharge bucket 28, spout 29 30,30 top of shield is connect with 16 bottom of head body, protects to spout 29, spray head is avoided to be damaged.

More specifically, placement plate 31 is connected with by spring at the top of the print platform 1, and the placement plate 31 is located at 16 lower section of head body, when spray head carries out print job, avoiding colliding with placement plate 31 causes spray head to damage, the spiral shell 5 both ends of rasp bar are fixedly mounted in guide-track groove 3 by bearing, and 5 two sides of threaded rod are provided with guide rod 32, the guide rod 32 are fixedly connected with 3 inner wall of guide-track groove, and the nut 7 is sheathed on 32 outside of guide rod, and 10 two sides of lifter plate are provided with Sliding rail 33 offers sliding slot 34 on the movable plate 6, and the sliding rail 33 is inserted into the sliding slot 34, guarantees that spray head is carrying out position The accuracy and stationarity when adjusting are set, gear bar 35, the second stepper motor are fixedly installed at the top of the fixed plate 11 13 output shafts are fixedly connected with gear ring 36 through movable block 12, and the gear ring 36 engages connection, second step with gear bar 35 It drives gear ring 36 to rotate into motor 13, makes movable block 12 that spray head be driven to realize laterally with the cooperation of gear bar 35 in fixed plate 11 It is mobile, it is fixedly installed reinforcing rod 37 between the trunnion 18, is connected at the top of 37 bottom of reinforcing rod and micromotor 23, it can To guarantee the stability of printed material injection, is checked on the trunnion 18 positioned at heat dissipation and offer heat release hole between piece 21, institute It states and offers through-hole with 22 opposite position of cooling fan in head body 16, and be provided with Air Filter in through-hole, so that heat dissipation Effect is more preferable, prevents printed material from melting and influencing the normal work of 3D printer, 30 surface of shield in trunnion 18 Ventilation hole is offered, the high temperature of nozzle is evaporated, avoids temperature is excessively high spray head is caused to damage.

Utility model works principle: it in printing, drives threaded rod 5 to rotate by the first stepper motor 4, makes nut 7 Drive movable plate 6 mobile, electric telescopic rod 9 drives lifter plate 10 to move up and down, and second stepper motor 13 drives gear ring 36 to revolve Turn, makes movable block 12 that spray head be driven to realize transverse shifting with the cooperation of gear bar 35 in fixed plate 11, realize spray head in printing It is required that movement, material enters melting tube 20 by feed pipe 19 when printing, passes through micromotor 23 and stirring vane 25 is driven to revolve Turn, two kinds of materials is enabled to be sufficiently mixed uniform effect, checks being used cooperatively for piece 21 and cooling fan 22 by radiating, make It is more preferable to obtain heat dissipation effect, prevents printed material from melting and influencing the normal work of 3D printer in trunnion 18, guarantees that spray head can Print with safety, improves the efficiency of printing.

The above are the preferable embodiment of the utility model, the utility model those skilled in the art can also be to upper It states embodiment to change and modify, therefore, the utility model is not limited to above-mentioned specific embodiment, all abilities Field technique personnel made any conspicuous improvement, replacement or modification on the basis of the utility model belong to practical Novel protection scope.

Claims

1. a kind of 3D printer spray head, including print platform (1), it is characterised in that: two sides are set at the top of the print platform (1) It is equipped with fixed station (2), is offered guide-track groove (3) at the top of the fixed station (2), described guide-track groove (3) inner cavity one end is fixedly mounted Have the first stepper motor (4), the first stepper motor (4) output shaft is fixedly connected with threaded rod (5), the guide-track groove (3) Top is provided with movable plate (6), and movable plate (6) bottom is connect by nut (7) with threaded rod (5), the movable plate (6) It is fixedly installed between top transverse slat (8), is symmetrically installed with electric telescopic rod (9), the electric expansion at the top of the transverse slat (8) Bar (9) mobile terminal is fixedly connected with lifter plate (10) through transverse slat (8), and lifter plate (10) intracavity bottom is provided with fixed plate (11), fixed plate (11) side is provided with movable block (12), and movable block (12) inner cavity is fixedly installed with the second stepping Motor (13), lifter plate (10) inner cavity top are fixedly installed fixed link (14), are sheathed at the top of the movable block (12) On the outside of fixed link (14), movable block (12) bottom is fixedly connected with mounting plate (15), the installation through lifter plate (10) Plate (15) bottom is fixedly installed with head body (16), and head body (16) inner cavity is fixedly installed partition (17), described It is symmetrically arranged with trunnion (18) at the top of partition (17), trunnion (18) inner cavity is provided with feed pipe (19), the partition (17) bottom is provided with melting tube (20), and the feed pipe (19) is connected to through partition (17) with melting tube (20), the trunnion (18) two sides are evenly arranged with heat dissipation and check piece (21), and the heat dissipation is checked piece (21) two sides and is provided with cooling fan (22), described to dissipate Air-heater (22) is fixedly mounted on head body (16) inner wall, is fixedly installed with micromotor (23) between the trunnion (18), The micromotor (23) is fixedly connected with shaft (24) through partition (17), is provided with stirring vane on the outside of the shaft (24) (25), it is provided with thermally conductive sheet (26) on the outside of the melting tube (20), is provided with heating plate (27), institute on the outside of the thermally conductive sheet (26) It states melting tube (20) bottom to offer discharge bucket (28), discharge bucket (28) bottom offers spout (29), the discharge bucket (28), it is provided with shield (30) on the outside of spout (29), is connect at the top of the shield (30) with head body (16) bottom.

2. a kind of 3D printer spray head according to claim 1, it is characterised in that: logical at the top of the print platform (1) It crosses spring to be connected with placement plate (31), and the placement plate (31) is located at below head body (16).

3. a kind of 3D printer spray head according to claim 1, it is characterised in that: threaded rod (5) both ends pass through Bearing is fixedly mounted in guide-track groove (3), and threaded rod (5) two sides are provided with guide rod (32), the guide rod (32) with Guide-track groove (3) inner wall is fixedly connected, and the nut (7) is sheathed on the outside of guide rod (32).

4. a kind of 3D printer spray head according to claim 1, it is characterised in that: lifter plate (10) the two sides setting Have sliding rail (33), offered sliding slot (34) on the movable plate (6), the sliding rail (33) is inserted into the sliding slot (34).

5. a kind of 3D printer spray head according to claim 1, it is characterised in that: fixed at the top of the fixed plate (11) It is provided with gear bar (35), second stepper motor (13) output shaft is fixedly connected with gear ring through movable block (12) (36), the gear ring (36) engages connection with gear bar (35).

6. a kind of 3D printer spray head according to claim 1, it is characterised in that: fixation is set between the trunnion (18) It is equipped with reinforcing rod (37), is connect at the top of reinforcing rod (37) bottom and micromotor (23).

7. a kind of 3D printer spray head according to claim 1, it is characterised in that: be located at heat dissipation on the trunnion (18) It checks and offers heat release hole between piece (21), offer on the head body (16) with cooling fan (22) opposite position logical Hole, and Air Filter is provided in through-hole.

8. a kind of 3D printer spray head according to claim 1, it is characterised in that: shield (30) surface opens up There is ventilation hole.