CN207657201U

CN207657201U - A kind of 3D printing extruder

Info

Publication number: CN207657201U
Application number: CN201721479140.7U
Authority: CN
Inventors: 任苗
Original assignee: Chengdu Zhiqi Technology Co Ltd
Current assignee: Dalian Additive Material Manufacturing Intellectural Property Operation Center Co ltd
Priority date: 2017-11-08
Filing date: 2017-11-08
Publication date: 2018-07-27
Anticipated expiration: 2027-11-08

Abstract

The utility model discloses a kind of 3D printing extruders, including motor, the lower section of the motor is equipped with second base, the upper surface of the second base is connected with the lower surface of motor, the left side outer wall of the motor is equipped with shaft joint, the inner wall of the shaft joint is connected with the outer wall of motor, and the inner wall of the shaft joint is equipped with first rotating shaft.The 3D printing extruder, pass through first base, cooperation between upright bar and holder, under the action of fixed seat, keep the connection of extruder compacter, work is more stablized, so as to avoid conventional extruder, the quantity of material of extrusion is uneven, in first rotating shaft, under the action of second shaft and third shaft, avoid the shortcomings that transfer roller is blocked or fractureed in spray gun, under the action of motor, the rotating forward or reversion of regulation motor can be passed through, the rate of material foundation is set to accelerate or slow down, to overcome the shortcomings that conventional extruder cannot adjust rate of extrusion, it is suitble to promote and apply.

Description

A kind of 3D printing extruder

Technical field

The utility model is related to 3D printing technique field, specially a kind of 3D printing extruder.

Background technology

3D printer, i.e. a kind of machine of rapid prototyping technology, it be one kind based on digital model file, with spy The adhesive materials such as different wax material, powdery metal or plastic construct the technology of object by layer-by-layer printing, are beaten in 3D Consumptive material extruder is needed to provide consumptive material to printing in print machine print procedure, the extruder of general 3D printer is all directly by step Stepper motor drives metal wire squeeze wheel, wire squeeze wheel outer ring to have the dead turn of dentation, consumptive material to be passed through between wire squeeze wheel and thread pressing wheel, can It will not skid when to ensure wire squeeze, ensure that extrusion effect, but existing extruder still has some defects, existing Have in technology, such as application No. is 201520699817.2 utility model patent include holder, which is characterized in that the holder Upper setting silk pressing lever, the silk pressing lever top are provided with feed inlet, consumptive material detection switch, institute are provided on the feed inlet It states consumptive material detection switch to connect with buzzer, the nozzle connection of the feed inlet and discharging, the connection of the feed inlet and nozzle Place is equipped with thread pressing wheel and wire squeeze wheel, and the thread pressing wheel is connect with wire squeeze wheel, and the wire squeeze wheel is connected by bearing and first gear It connects, the first gear is connect with second gear, and the second gear is connect with stepper motor, and temperature is equipped on the nozzle Sensor and PID temperature control, the utility model is although simple in structure, but there are many deficiencies and defect, in existing equipment In, the design existing defects of thread pressing wheel, thread pressing wheel and wire squeeze wheel cannot adjust the falling speed of first gear and second gear, In addition by the way of gear extrusion, easily material is made to fracture, causes spray nozzle clogging, in view of these situations, to avoid above-mentioned technology Problem, it is necessory to provide a kind of 3D printing extruder to overcome the defect in the prior art.

Utility model content

The purpose of this utility model is to provide a kind of 3D printing extruders, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions：A kind of D printings extruder, including motor, institute The lower section for stating motor is equipped with second base, and the upper surface of the second base is connected with the lower surface of motor, a left side for the motor Side outer wall is equipped with shaft joint, and the inner wall of the shaft joint is connected with the outer wall of motor, and the inner wall of the shaft joint is equipped with first turn Axis, the outer wall of the first rotating shaft are connected with the inner wall of shaft joint, and the left side outer wall of the first rotating shaft is equipped with first gear, institute The inner wall for stating first gear is connected with first rotating shaft outer wall, and the outside of the first gear is equipped with babinet, the first rotating shaft Outer wall is connected with the inner wall of babinet overlap joint, and the top of the first gear is equipped with second gear, the lower surface of the second gear It engages and is connected with the upper surface of first gear, the inner wall of the second gear is equipped with the second shaft, the outer wall of second shaft It is connected with the inner wall of second gear, the outer wall of second shaft is equipped with third gear, the inner wall and second of the third gear The outer wall of shaft is connected, and the top of the third gear is equipped with the 4th gear, lower surface and the third gear of the 4th gear Upper surface engagement be connected, the inner wall of the 4th gear is equipped with third shaft, the outer wall and the 4th gear of the third shaft Inner wall be connected, the outer wall of the third shaft is connected with the inner wall of babinet overlap joint, and the left side outer wall of the third shaft is socketed There are compressed spring, the inner wall of the compressed spring to be connected with the outer wall of third shaft overlap joint, the outside of the compressed spring is equipped with The top of transfer roller, the transfer roller is equipped with feeding port, and the outer right wall of the transfer roller is connected with the left side outer wall of third shaft, described The left side of transfer roller is equipped with nozzle, and the outside of the nozzle is equipped with spray gun, and the inner wall of the spray gun is connected with the outer wall of nozzle, described The outer wall of feeding port is connected with the inner wall of spray gun, and the outside of the spray gun is equipped with outer cover, the inner wall of the outer cover and spray gun it is interior Wall is connected, and the lower surface of the outer cover is equipped with holder, and the upper surface of the holder is connected with the lower surface of outer cover, the holder Lower section is equipped with upright bar, and the upper surface of the upright bar is connected with the lower surface of holder, and the lower section of the upright bar is equipped with fixed seat, described The upper surface of fixed seat is connected with the lower surface of upright bar, and the lower section of the fixed seat is equipped with first base, the first base Upper surface is connected with the lower surface of upright bar.

Preferably, the inner wall of the second base is equipped with hook-type reinforcing bar, and the outer wall of the hook-type reinforcing bar runs through second base, Connection reinforcing bar is equipped between the inner wall of the hook-type reinforcing bar, the outer wall of the connection reinforcing bar is connected with the inner wall of hook-type reinforcing bar, institute The inner wall for stating connection reinforcing bar is equipped with side plate, and the inner wall of the side plate is connected with the outer wall for connecting reinforcing bar, is set on the left of the side plate There are supporting plate, the upper surface of the supporting plate to be connected with the lower surface of second base, hollow is equipped between the outer wall of the hook-type reinforcing bar The inner wall of reinforcing bar, the hollow reinforcing bar is connected with the outer wall of hook-type reinforcing bar, and the upper surface of the second base is equipped with setting-up piece, The lower surface of the setting-up piece is connected with the upper surface of second base.

Preferably, the upper surface of the motor is equipped with Lift hook, the lower surface of the Lift hook and the upper surface phase of motor Even.

Preferably, the outside of the first rotating shaft is equipped with cushion block, the upper surface of the cushion block and the lower surface of first rotating shaft It is connected.

Preferably, the upper surface of the second base is equipped with fixing bolt, the lower surface of the fixing bolt and the second bottom The upper surface of seat is connected.

Compared with prior art, the utility model has the beneficial effects that：The 3D printing extruder by first base, is stood Cooperation between bar and holder keeps the connection of extruder compacter under the action of fixed seat, and work is more stablized, to Conventional extruder is avoided, the quantity of material of extrusion is uneven, squeezes not tight disadvantage, and it is unstable to overcome conventional extruder connection Deficiency, by the cooperation between first gear, second gear, third gear and the 4th gear, first rotating shaft, the second shaft and Under the action of third shaft, so that material is transported and uniformly squeezed out by transfer roller, gear set plays the role of deceleration, to overcome The shortcomings that conventional extruder cannot control rate of extrusion, by the cooperation between spray gun, nozzle and transfer roller, in compressed spring Under effect, enable to push on the inside of the lateral phase of transfer roller, spray gun failure avoided when either blocking transfer roller blocked in spray gun or The shortcomings that fractureing can be such that the rate of material foundation accelerates under the action of motor by the rotating forward or reversion of regulation motor Or slow down, to overcome the shortcomings that conventional extruder cannot adjust rate of extrusion, it is suitble to promote and apply.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the structural schematic diagram of the utility model babinet；

Fig. 3 is the structural schematic diagram of the utility model supporting plate.

In figure：1, spray gun, 2, first base, 3, second base, 4, motor, 5, Lift hook, 6, shaft joint, 7, fixed seat, 8, upright bar, 9, cushion block, 10, first gear, 11, first rotating shaft, 12, feeding port, 13, transfer roller, 14, nozzle, 15, holder, 16, outer Lid, 17, compressed spring, the 18, the 4th gear, 19, third shaft, 20, third gear, the 21, second shaft, 22, second gear, 23, babinet, 24, fixing bolt, 25, hook-type reinforcing bar, 26, setting-up piece, 27, supporting plate, 28, side plate, 29, hollow reinforcing bar, 30, even Connect reinforcing bar.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of 3D printing extruder, including motor 4, electricity Machine 4 is AC servo motor, and the rate for adjusting material extrusion, the model SF-0-9L of motor 4, the lower section of motor 4 is equipped with The material of second base 3, second base 3 is stainless steel, is used to support babinet 23, and the inner wall of second base 3 is equipped with hook-type The material of reinforcing bar 25, hook-type reinforcing bar 25 is stainless steel, for second base 3 to be fixed, the outer wall of hook-type reinforcing bar 25 Connection reinforcing bar 30 is equipped between second base 3, the inner wall of hook-type reinforcing bar 25, the material of connection reinforcing bar 30 is stainless steel Matter, for being reinforced to second base 3, the outer wall of connection reinforcing bar 30 is connected with the inner wall of hook-type reinforcing bar 25, connects reinforcing bar 30 Inner wall be equipped with side plate 28, the material of side plate 28 is stainless steel, for connecting second base 3, the inner wall of side plate 28 and company The outer wall for connecing reinforcing bar 30 is connected, and the left side of side plate 28 is equipped with supporting plate 27, and the material of supporting plate 27 is stainless steel, for babinet 23 connection is reinforced, and the upper surface of supporting plate 27 is connected with the lower surface of second base 3, is set between the outer wall of hook-type reinforcing bar 25 There is hollow reinforcing bar 29, hollow reinforcing bar 29 is for connecting hook-type reinforcing bar 25, the outer wall of the inner wall and hook-type reinforcing bar 25 of hollow reinforcing bar 29 It is connected, the upper surface of second base 3 is equipped with setting-up piece 26, and setting-up piece 26 is used to increase frictional force, and connection is made more to stablize, The lower surface of setting-up piece 26 is connected with the upper surface of second base 3, and the upper surface of second base 3 is equipped with fixing bolt 24, Gu Determine bolt 24 for connecting and fixing first base 2 and second base 3, the lower surface of fixing bolt 24 is upper with second base 3 Surface is connected, and the upper surface of second base 3 is connected with the lower surface of motor 4, and the upper surface of motor 4 is equipped with Lift hook 5, Lift hook 5 material is stainless steel, is used when for lifting extruder, and the lower surface of Lift hook 5 is connected with the upper surface of motor 4, The left side outer wall of motor 4 is equipped with shaft joint 6, and the material of shaft joint 6 is stainless steel, for driving first rotating shaft 11 to rotate, The inner wall of shaft joint 6 is connected with the outer wall of motor 4, and the inner wall of shaft joint 6 is equipped with first rotating shaft 11, and the material of first rotating shaft 11 is Stainless steel, for driving first gear 10 to rotate, the outside of first rotating shaft 11 is equipped with cushion block 9, and cushion block 9 is used to support first The upper surface of shaft 11, cushion block 9 is connected with the lower surface of first rotating shaft 11, the inner wall of the outer wall and shaft joint 6 of first rotating shaft 11 It is connected, the left side outer wall of first rotating shaft 11 is equipped with first gear 10, and the material of first gear 10 is stainless steel, for driving Second gear 22 rotates, and the inner wall of first gear 10 is connected with 11 outer wall of first rotating shaft, and the outside of first gear 10 is equipped with babinet 23, babinet 23 is used to gear set carrying out closed protective, and the outer wall of first rotating shaft 11 is connected with the inner wall of babinet 23 overlap joint, and first The top of gear 10 is equipped with second gear 22, and the material of second gear 22 is stainless steel, for installing and fixing first turn Axis 11, the lower surface of second gear 22 is engaged with the upper surface of first gear 10 to be connected, and the inner wall of second gear 22 is equipped with second Shaft 21, the material of the second shaft 21 is stainless steel, for driving third gear 20 to rotate, the outer wall of the second shaft 21 with The inner wall of second gear 22 is connected, and the outer wall of the second shaft 21 is equipped with third gear 20, and the material of third gear 20 is stainless steel Material, for driving the rotation of the 4th gear 18, the inner wall of third gear 20 to be connected with the outer wall of the second shaft 21, third gear 20 Top be equipped with the 4th gear 18, the material of the 4th gear 18 is stainless steel, for driving third shaft 19 to rotate, the 4th The lower surface of gear 18 is engaged with the upper surface of third gear 20 to be connected, and the inner wall of the 4th gear 18 is equipped with third shaft 19, the The outer wall of three shafts 19 is connected with the inner wall of the 4th gear 18, and the outer wall of third shaft 19 is connected with the inner wall of babinet 23 overlap joint, The left side outer wall of third shaft 19 is socketed with compressed spring 17, and the coefficient of elasticity of compressed spring 17 is 3N/CM, for preventing transfer roller 13 fracture in rotation, and the inner wall of compressed spring 17 is connected with the outer wall of third shaft 19 overlap joint, and the outside of compressed spring 17 is set There is transfer roller 13, the material of transfer roller 13 is stainless steel, and for squeezing out material, the top of transfer roller 13 is equipped with feeding port 12, throws Material mouth 12 is for launching material, and the outer right wall of transfer roller 13 is connected with the left side outer wall of third shaft 19, and the left side of transfer roller 13 is set There is nozzle 14, nozzle 14 is for exporting material, and the outside of nozzle 14 is equipped with spray gun 1, and spray gun 1 is for installing transfer roller 13, spray gun 1 Inner wall be connected with the outer wall of nozzle 14, for making the connection of nozzle 14 more stablize, the outer wall of feeding port 12 is interior with spray gun 1 Wall is connected, and for making the connection of feeding port 12 more stablize, the outside of spray gun 1 is equipped with outer cover 16, and the material of outer cover 16 is stainless Steel material, for closing transfer roller 13, the inner wall of outer cover 16 is connected with the inner wall of spray gun 1, for making the connection of outer cover 16 more Stablize, the lower surface of outer cover 16 is equipped with holder 15, and the material of holder 15 is stainless steel, is used to support spray gun 1, holder 15 Upper surface is connected with the lower surface of outer cover 16, and for making the connection of holder 15 more stablize, the lower section of holder 15 is equipped with upright bar 8, The material of upright bar 8 is stainless steel, is used to support spray gun 1, the upper surface of upright bar 8 is connected with the lower surface of holder 15, is used for The connection of upright bar 8 is set more to stablize, the lower section of upright bar 8 is equipped with fixed seat 7, and the material of fixed seat 7 is stainless steel, for connecting Upright bar 8 is connect and fixes, the upper surface of fixed seat 7 is connected with the lower surface of upright bar 8, for making the connection of upright bar 8 more stablize, Gu The lower section of reservation 7 is equipped with first base 2, and the material of second base 2 is stainless steel, is used for mounting-fixing base 7, first base 2 upper surface is connected with the lower surface of upright bar 8, for making the connection of second base 2 more stablize.

When carrying out material extrusion using the 3D printing extruder, it should be noted that the place that cannot be painted after installing before assembly Paint the paint of resistance to oil red, first gear 10, the 18 palpus smear test of second gear 22, third gear 19 and the 4th gear, contact rate The high direction of gear is no less than 45%, and facewidth direction is no less than 60%, must keep certain backlash (0.260-0.600), the After one shaft 11, first rotating shaft 21 and third shaft 19 are assembled, brisk flexible, first rotating shaft 11,21 and of first rotating shaft are answered in rotation The axial gap of third shaft 19 is 0.08-0.15, and babinet 23, spray gun 1, motor 4 and being sealed for shaft joint 6 locate equal oiling, case Body 23, outer cover 16, first gear 10, second gear 22, the mating surface of third gear 19 and the 4th gear 18 will be coated and be received, and One gear 10, second gear 22, third gear 19 and the 4th gear 18 and first rotating shaft 11, first rotating shaft 21 and third shaft 19 Must check whether transfer roller 13 and third shaft 19 concentric with one heart, when assembly, it is minimum at single side sideshake not less than actual gap 15%, first rotating shaft 11 keeps concentric with motor 4, assembly after unevenness be no more than 2.5mm, transfer roller 13 must do sky after assembly Turn experiment, is checked by technical standard idle running requirements, paint generally light gray, when being required such as user, by user's requirement, When there is no problem for test, material is put into feeding port 12, connects the external power supply of motor 4, and motor 4 drives first rotating shaft 11 It is rotated with first gear 10, first gear 10 drives second gear 22, the second shaft 21 and third gear 20 to rotate, third gear 20 drive the 4th gear 18 and third shaft 19 to rotate, and third shaft 19 drives transfer roller 13 to rotate, the scraper on transfer roller 13, rotation Material is squeezed out, work is completed.

In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than Indicate or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot It is construed as a limitation of the present invention.

In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral； It can be mechanical connection, can also be electrical connection；It can be directly connected, can also indirectly connected through an intermediary, it can be with It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of 3D printing extruder, including motor (4), it is characterised in that：The lower section of the motor (4) is equipped with second base (3), the upper surface of the second base (3) is connected with the lower surface of motor (4), and the left side outer wall of the motor (4), which is equipped with, to be connected The inner wall of axis device (6), the shaft joint (6) is connected with the outer wall of motor (4), and the inner wall of the shaft joint (6) is equipped with first turn The outer wall of axis (11), the first rotating shaft (11) is connected with the inner wall of shaft joint (6), the left side outer wall of the first rotating shaft (11) Equipped with first gear (10), the inner wall of the first gear (10) is connected with first rotating shaft (11) outer wall, the first gear (10) outside is equipped with babinet (23), and the outer wall of the first rotating shaft (11) is overlapped with the inner wall of babinet (23) to be connected, and described the The top of one gear (10) is equipped with second gear (22), the upper table of the lower surface and first gear (10) of the second gear (22) Face engagement is connected, and the inner wall of the second gear (22) is equipped with the second shaft (21), the outer wall of second shaft (21) and the The inner wall of two gears (22) is connected, and the outer wall of second shaft (21) is equipped with third gear (20), the third gear (20) Inner wall be connected with the outer wall of the second shaft (21), the top of the third gear (20) is equipped with the 4th gear (18), described the The lower surface of four gears (18) is engaged with the upper surface of third gear (20) to be connected, and the inner wall of the 4th gear (18) is equipped with the The outer wall of three shafts (19), the third shaft (19) is connected with the inner wall of the 4th gear (18), the third shaft (19) Outer wall is connected with the inner wall of babinet (23) overlap joint, and the left side outer wall of the third shaft (19) is socketed with compressed spring (17), institute The inner wall for stating compressed spring (17) is connected with the outer wall of third shaft (19) overlap joint, and the outside of the compressed spring (17), which is equipped with, to be turned The top of roller (13), the transfer roller (13) is equipped with feeding port (12), outer right wall and the third shaft (19) of the transfer roller (13) Left side outer wall be connected, the left side of the transfer roller (13) is equipped with nozzle (14), and the outside of the nozzle (14) is equipped with spray gun (1), The inner wall of the spray gun (1) is connected with the outer wall of nozzle (14), the inner wall phase of the outer wall and spray gun (1) of the feeding port (12) Even, the outside of the spray gun (1) is equipped with outer cover (16), and the inner wall of the outer cover (16) is connected with the inner wall of spray gun (1), described outer The lower surface for covering (16) is equipped with holder (15), and the upper surface of the holder (15) is connected with the lower surface of outer cover (16), the branch The lower section of frame (15) is equipped with upright bar (8), and the upper surface of the upright bar (8) is connected with the lower surface of holder (15), the upright bar (8) Lower section be equipped with fixed seat (7), the upper surface of the fixed seat (7) is connected with the lower surface of upright bar (8), the fixed seat (7) Lower section be equipped with first base (2), the upper surface of the first base (2) is connected with the lower surface of upright bar (8).

2. a kind of 3D printing extruder according to claim 1, it is characterised in that：The inner wall of the second base (3) is set Have a hook-type reinforcing bar (25), the outer wall of the hook-type reinforcing bar (25) runs through second base (3), the inner wall of the hook-type reinforcing bar (25) it Between be equipped with connection reinforcing bar (30), it is described connection reinforcing bar (30) outer wall be connected with the inner wall of hook-type reinforcing bar (25), the connection steel The inner wall of muscle (30) is equipped with side plate (28), and the inner wall of the side plate (28) is connected with the outer wall for connecting reinforcing bar (30), the side plate (28) left side is equipped with supporting plate (27), and the upper surface of the supporting plate (27) is connected with the lower surface of second base (3), the hook-type Hollow reinforcing bar (29), the outer wall of the inner wall and hook-type reinforcing bar (25) of the hollow reinforcing bar (29) are equipped between the outer wall of reinforcing bar (25) It is connected, the upper surface of the second base (3) is equipped with setting-up piece (26), lower surface and the second bottom of the setting-up piece (26) The upper surface of seat (3) is connected.

3. a kind of 3D printing extruder according to claim 1, it is characterised in that：The upper surface of the motor (4) is equipped with The lower surface of Lift hook (5), the Lift hook (5) is connected with the upper surface of motor (4).

4. a kind of 3D printing extruder according to claim 1, it is characterised in that：It is set on the outside of the first rotating shaft (11) There are cushion block (9), the upper surface of the cushion block (9) to be connected with the lower surface of first rotating shaft (11).

5. a kind of 3D printing extruder according to claim 1, it is characterised in that：The upper surface of the second base (3) Equipped with fixing bolt (24), the lower surface of the fixing bolt (24) is connected with the upper surface of second base (3).