CN109648845A

CN109648845A - A kind of multifunctional intellectual 3D printer printing high-temperature engineering plastics

Info

Publication number: CN109648845A
Application number: CN201811554710.3A
Authority: CN
Inventors: 张文义
Original assignee: Wuhu Aisandi Electronic Technology Co Ltd
Current assignee: Wuhu Aisandi Electronic Technology Co Ltd
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2019-04-19

Abstract

The present invention provides a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics, including shell, XY Axle mould group is equipped in shell, Z axis mould group, print platform, roll supplies racks and extruder, extruder includes the big aluminium block that radiates, there are two stepper motors for installation on the big aluminium block of heat dissipation, extrusion gear is installed on stepper motor, it is fixed below the big aluminium block that radiates that there are two thermally conductive red copper blocks, the trunnion for running through thermally conductive red copper block is provided in each thermally conductive red copper block, trunnion is fixed on the big aluminium block of heat dissipation, the small aluminium block of heating is fixed on each trunnion, small aluminium block is heated to be located at below thermally conductive red copper block, a nozzle is installed on each small aluminium block of heating, an inductance approach switch is also equipped on big aluminium block radiating.Intelligence 3D printer structure provided by the present invention, overall structure advantages of simple are easily assembled, and extruder overall construction design is reasonable, and handling consumptive material is simple, and nozzle is less prone to clogging.

Description

A kind of multifunctional intellectual 3D printer printing high-temperature engineering plastics

Technical field

The invention mainly relates to 3D printer correlative technology field, specifically a kind of multi-functional and high temperature work such as printing PEEK The intelligent 3D printer of engineering plastics.

Background technique

A kind of machine of three-dimensional printer, that is, rapid shaping technique, is based on a digital model file, with powder The adhesive materials such as last metal or plastics construct the technology of object by layer-by-layer printing, and the three-dimensional of the prior art beats Print machine is broadly divided into fuse and is manufactured (FFF), selective laser sintering (SLS), at stereolithography (SLA) and digital light It manages (DLP).

Three-dimensional printer structure of the prior art based on FFF is generally complex, is unfavorable for assembly assembling, usual printer Using long-range wire feed or short range wire feed as structure is squeezed out, long-range wire feed print head is very light, but loads and unloads consumptive material trouble, printing The soft material such as TPU cannot achieve normal print work, and short range wire feed print head is very heavy, but handling consumptive material is simple, and printing TPU holds Easily；Usual spray head will carry out encountering when printing high-temperature material, be easy plug, the reason is that heat dissipation is not good caused enough, it is most of Using water cooling and this air-cooled 2 modes, but water cooling is excessively high to installation requirement, air-cooled then simple, if but air-cooled temperature too It is high then can not radiate.In addition to the above-mentioned problems, place is usually also had the following deficiencies:

1, when printing the high-temperature materials such as PEEK, if will lead to mould without enough room temperatures and stationary temperature Type shrinks, and is easy to appear alice, or even can print failure.

2, consumptive material can be usually encountered in print procedure to be finished, but machine also is continuing to work without material jet printing, It is imperfect to result in model printing, it is often necessary to reinstall a roll of new consumptive material and be printed.

3, in the structure of supplies racks, most of direct screws or a plastic tube as support frame, but by Then fricting movement results in wire feeding motor and pulls consumptive material very painstaking, extrusion centripetal force influenced, to print The model come inevitably can high-minded tomography or defect.

4, most of using steering engine or close to switch on automatic leveling, steering engine inevitably can in long-term rotary course Error is occurred, to influence the precision of leveling.In addition close to switch most people during design structure usually It is close to switch apart from printing nozzle farther out, thus not be the point that nozzle is aligned close to the point being aligned is switched, because of structure problem, So causing leveling inaccurate.

5, in terms of print platform fixation, it is easy to cause platform displacement, to influence the model quality of printing.

6, most of to use an aluminium platform or glass platforms in terms of platform, using close to switch to aluminium platform into When row automatic leveling, the sensitivity close to switch does not have the good of iron, and the plane for causing automatic leveling to come out is inaccurate, to affect The bottom quality of printing, when using capacitive approach switch, excessive close to volume of switch due to capacitor, resulting in printer has The stamp with the size of effect becomes smaller, so that the shape needs for having influenced machine become much larger.

Summary of the invention

For the deficiency for solving current technology, it is high to provide a kind of printing from practical application for the present invention combination prior art The multifunctional intellectual 3D printer of warm engineering plastics, the technical issues of can effectively solve the problem that in the presence of background technique.

Technical scheme is as follows:

A kind of multifunctional intellectual 3D printer printing high-temperature engineering plastics, including shell, the shell is interior to be equipped with XY axis Mould group, print platform, rolls supplies racks and extruder at Z axis mould group, and the extruder includes the big aluminium block that radiates, big in heat dissipation Installation is equipped with extrusion gear on stepper motor, also installs respectively on two stepper motors there are two stepper motor on aluminium block Have left handle and right handle, be respectively and fixedly provided with V-groove bearing on left handle and right handle, it is fixed below the big aluminium block of radiating there are two Thermally conductive red copper block, the trunnion for running through thermally conductive red copper block is provided in each thermally conductive red copper block, and the trunnion is fixed on heat dissipation On big aluminium block, it is fixed with the small aluminium block of heating on each trunnion, heats small aluminium block and is located at below thermally conductive red copper block, Mei Gejia A nozzle is installed on the small aluminium block of heat, is also equipped with an inductance approach switch, the inductance on the big aluminium block of heat dissipation Formula is located between two nozzles close to switch, and equipped with radiator fan, rear end is equipped with airstream deflector, the wind-guiding for big aluminium block front end of radiating Air blower is fixedly installed on device.

The rolling supplies racks include supplies support, are equipped with long screw in supplies support, circle is equipped on long screw Pipe, the tube ends are supported by flange bearing and by being located at gasket, nut locking on the outside of flange bearing, on round tube Wire pushing roller is installed.

The print platform includes bracket, has spring groove on the bracket, is placed with spring, spring in the spring groove Aluminum substrate is arranged in top, is separately installed with a glass clamp in aluminum substrate four corners, aluminum substrate is sequentially arranged above glass plate, plating Zine plate or stainless steel plate, PC printed films or TPU printed films.

The XY Axle mould group includes X-axis mould group and Y-axis mould group, and wherein X-axis mould group includes left fixing piece, right fixing piece, a left side Two optical axises are equipped between fixing piece and right fixing piece, two optical axises, which are equipped with, to be slidably matched with optical axis for installing extruder Sliding seat is provided with synchronizing wheel on left fixing piece, right fixing piece, passes through synchronous band connection between two synchronizing wheels, wherein The stepper motor of driving synchronizing wheel rotation is also equipped on right fixing piece.

The Z axis mould group includes upper and lower two aluminium block fixing seats, has two straight optical axis between two aluminium block fixing seats, There is screw rod, screw rod bottom end is fastened on the stepper motor in aluminium block fixing seat, pacifies on screw rod between two straight optical axis Equipped with the nut being threadedly engaged with it, it is fixed with lifter plate on nut, the lifter plate and straight optical axis are slidably matched, on lifter plate Print platform is installed.

Three sides of the shell, a top surface all have opening, and the opening installation heat-resisting version of PC is to make shell be formed One full-closed structure.

The interior of shell is equipped with 2 ptc heaters, for controlling interior of shell temperature.

Consumptive material part is provided with fracture detection switch in the interior of shell.

Beneficial effects of the present invention:

1, intelligent 3D printer structure provided by the present invention, overall structure advantages of simple are easily assembled, and extruder is whole Body is reasonable in design, and handling consumptive material is simple, can print most materials easily, and extruder structure integral heat sink effect is good, The case where being less prone to plug；Inductance approach switch is set between two nozzles of extruder, and leveling precision is high, and leveling is quick It is convenient.

2, machine of the present invention integrally uses the totally-enclosed printing model of four observables, and configures room thermostat to control Fracture detection switch is arranged inside machine, can find fracture situation in time for the temperature for printing cavity.

3, supplies racks of the invention support an intermediate round tube as drive rod, front and back using 2 flange bearings in left and right Make to be screwed, overall structure is simple, movement is flexible, can guarantee that the model printed is not in disconnected compared to traditional structure Layer or other defects as caused by supplies racks.

4, the firm stabilization of print platform structure of the invention, and keep the induction of close switch at spray head sensitiveer, thus Guarantee preferably leveling precision.

5, the motion structure design of three axis direction of X-axis Y-axis Z axis of the present invention rationally, can guarantee 3D printer in three-dimensional side To flexible motion.

Detailed description of the invention

Attached drawing 1 is general structure schematic diagram of the present invention；

Attached drawing 2 is the overall fractionation structural representation of the present invention；

Attached drawing 3 is X-axis mould group fractionation structural representation of the present invention；

Attached drawing 4 is print platform fractionation structural representation of the present invention；

Attached drawing 5 is Z axis mould group fractionation structural representation of the present invention；

Attached drawing 6 is that the present invention rolls supplies racks fractionation structural representation；

Attached drawing 7 is extruder fractionation structural representation of the present invention.

Label shown in attached drawing:

1-1, front door PC refractory plate；1-2, left side PC refractory plate；1-3, top PC refractory plate；1-4, shell；1-5, right side PC refractory plate；

2-1, Y-axis mould group；2-2, Z axis mould group；2-3, X-axis mould group；2-4, fracture detection switch；2-5, supplies racks are rolled； 2-6, print platform；2-7, metal plate；2-8, safety door inductor；2-9, ptc heater；

3-1, extruder；3-2, sliding seat；3-3, synchronizing wheel；3-4, right fixing piece；3-5, stepper motor；3-6, optical axis； 3-7, synchronous belt；3-8, bearing；3-9, synchronizing wheel；3-10, left fixing piece；3-11, bearing；3-12, optical axis；

4-1, galvanized sheet or stainless steel plate；4-2, glass；4-3, glass clamp；4-4, aluminum substrate；4-5, platform baffle；4-6, Spring groove；4-7, damping spring；

5-1, aluminium block fixing seat；5-2, straight optical axis；5-3, screw rod；5-4, nut；5-5, lifter plate；5-6, bracket；5- 7, flange bearing；5-8, aluminium block fixing seat；5-9, stepper motor；

6-1, long screw；6-2, nut；6-3, gasket；6-4, flange bearing；6-5, round tube；6-6, wire pushing roller；6-7, Supplies support；

7-1, chain supporting frame；7-2,35 stepper motors；7-3, V-groove bearing；7-4, gear is squeezed out；7-5, the big aluminium block of heat dissipation； 7-6, thermally conductive red copper block；7-7, screw；7-8, airstream deflector；7-9, trunnion；7-10, nozzle；7-11, the small aluminium block of heating；7-12, spray Mouth protective cover；7-13, wind-guiding fan retaining bracket；7-14, left handle；7-15, right handle；7-16, air blower；7-17, inductance type Close to switch；7-18, radiator fan.

Specific embodiment

With reference to the drawings and specific embodiments, the invention will be further described.It should be understood that these embodiments are merely to illustrate The present invention rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, this field Technical staff can make various changes or modifications the present invention, and such equivalent forms equally fall within range defined herein.

It is overall structure of the present invention and extruder structure schematic diagram, wherein integral module device cloth as shown in Fig. 1,2,7 Office is as follows:

1, X-axis mould group 2-3, Y-axis mould 2-1 group are mounted in hole location corresponding to metal plate 2-7 shell, then by Z axis mould In hole location corresponding to the metal plate 2-7 shell that group 2-2 is mounted on, then print platform 2-6 is mounted on to the branch of Z axis mould group 2-2 On frame 5-6, it is mounted on mounting hole corresponding to metal plate 2-7 shell followed by by 2 fracture detection switch 2-4, subsequently 2 rolling supplies racks 2-5 are mounted in hole location corresponding to metal plate 2-7 shell, are installed followed by by safety door inductor 2-8 In the hole location corresponding to metal plate 2-7 shell front door, finally 2 ptc heater 2-9 are mounted on corresponding to metal plate 2-7 shell Hole location on.Safety door inductor 2-8 when door one is opened can automatic alarm, and stop print job, heater 2-9 energy The temperature of enough control printing cavitys, guarantees printing effect.An IP Camera can be configured in the right back of machine, observable is beaten Print state and listen to whether have abnormal sound；A power-fail memory function module can be configured in the automatically controlled the inside of machine, in incoming call, It can continue de-energized to start to print.

Miniature double end extruder structure with automatic leveling and heat dissipation of the invention, specific structure and assembly method are such as Under:

2 nozzle 7-10 are fixed on 2 small aluminium block 7-11 of heating, 2 trunnion 7-9 are then fixed on 2 heating On small aluminium block 7-11, then 2 trunnion 7-9 are inserted in respectively on 2 thermally conductive red copper block 7-6, then distinguish 4 screw 7-7 It penetrates on 2 thermally conductive red copper block 7-6 and by screw locking, is fixed on it below big aluminium block 7-5 of heat dissipation.Then by trunnion 7-9 It is fixed on the corresponding hole the big aluminium block 7-5 of heat dissipation, 2 V-groove bearing 7-3 is then fixed on to the left handle and 7-16 of 7-15 On right handle in corresponding hole location, the right handle of the left handle of 7-15 and 7-16 is separately fixed on 2 35 stepper motor 7-2 In corresponding hole location, then 2 extrusion gear 7-4 are fixed on 2 35 stepper motor 7-2.Then by 2 35 stepper motors 7-2 is fixed in the corresponding hole location in the heat dissipation side big aluminium block 7-5, scattered followed by 2 wind-guiding fan retaining bracket 7-14 are fixed on In the corresponding hole location of hot aluminium block 7-5 greatly, it is corresponding that 2 radiator fan 7-18 are then fixed on 2 thermally conductive fan retaining bracket 7-13 Hole location on, then inductance approach switch 7-17 is fixed in the corresponding hole location of the big aluminium block 7-5 of heat dissipation, then by air blower 7-16 is fixed in the corresponding hole location of airstream deflector 7-8, and airstream deflector 7-8 is finally fixed on the corresponding hole location of the big aluminium block 7-5 of heat dissipation On, finally spray head protective cover 7-13 is fixed in the corresponding hole location of the big aluminium block 7-5 of heat dissipation, and hauling-chain frame 7-1 is fixed on It radiates in the corresponding hole location of big aluminium block 7-5.

An inductance approach switch 7-17 is set in two the intermediate of nozzle 7-10, apart from nozzle X axis coordinate 20.15mm, apart from Y axis coordinate 10.15mm, XY coordinate allows distance within the scope of positive and negative 5mm, and distance is closer, leveling point precision More preferably；Use the small size stepper motor of 35 series as power is squeezed out, reduces the weight of spray head entirety；Thermally conductive red copper dissipates block 7- 6 encase trunnion 7-9 and are tightly attached on the big aluminium block 7-5 of heat dissipation, and isolation is heated small aluminium block 7-11 hot gas and up run.So that this extruder With good heat sinking function and levelling function, the blocking of spray head is avoided, guarantees printing effect.

As shown in Figure 1, this printer uses full-enclosed structure, wherein the side shell 1-4 opening installs right side PC respectively Refractory plate 1-5, left side PC refractory plate 1-2, front door PC refractory plate 1-1, top PC refractory plate 1-3, it is internal.Machine integrally uses four The totally-enclosed printing model of door observable can make operating personnel observe printing situation in time.

As shown in figure 3, X-axis modular structure of the invention and assembly method are specific as follows: 2 optical axis 3-6 are respectively penetrated In the hole of sliding seat 3-2, then left fixing piece 3-10 is fixed on the left of 2 optical axis 3-6, then puts on stepper motor 3-5 Synchronizing wheel 3-3 is simultaneously mounted on right fixing piece 3-4, is finally fixed on the right side of 2 optical axis 3-6, is inserted in followed by by optical axis 3-12 Then synchronizing wheel 3-9 is inserted in bearing 3-8 and bearing 3-13 again, be then attached in the U-type groove of left fixing piece 3-10, finally will Synchronous belt 3-7 is inserted in the tooth form of synchronizing wheel 3-9 respectively in the tooth form of synchronizing wheel 3-3, and extruder is finally mounted on sliding Seat 3-2 is corresponded in hole location.

As shown in figure 4, print platform structure of the invention and assembly method are specific as follows:

4 glass clamp 4-3 are separately fixed on aluminum substrate 4-4, then by glass 4-2 and galvanized sheet or stainless steel (iron) plate 4-1 is clung by 3M468 double-sided adhesive, and PC printed films 4-8 is then sticked to galvanized sheet or stainless steel (iron) plate 4-1 Upper surface on, be then affixed on 4 glass clamp 4-3.4 damping spring 4-7 are subsequently mounted on to the spring groove of bracket In 4-6, finally entire platform is fixed on 2 bracket 5-6.It is mounted on bracket 5-6 i.e. followed by by platform baffle 4-5 It can.Fixed clip is installed at platform 4, using the clip of microminiature, is fixed in the use of 2, rear, 2, front moving rotary, Duty space is small, the firm stabilization of structure, above aluminum substrate tile a glass, above glass tile a galvanized sheet or Stainless steel (iron) plate, in galvanized sheet or the printed films of stainless steel (iron) plate one PC material of tiling or TPU material, inductance type Sensitiveer close to the induction of switch iron material, precision is more preferable.

As shown in figure 5, Z axis modular structure of the invention and assembly method are specific as follows:

2 flange bearing 5-7 are inserted in the bearing hole location of 2 bracket 5-6 respectively, are then inserted in the axis of lifter plate 5-5 again In bearing bore, and fixation is installed, then stepper motor 5-9 is fixed on aluminium block fixing seat 5-8, screw rod 5-2 is then inserted in spiral shell In female 5-4, then nut 5-4 is fixed in screw rod 5-2 nut bore, penetrates 2 followed by by screw rod 5-2 and straight optical axis 5-3 Inside the bearing hole of a linear bearing 5-7, screw rod 5-2 and straight optical axis 5-3 are finally inserted in aluminium block fixing seat 5-1 and aluminium respectively Block fixing seat 5-8, is finally fixed.

As shown in fig. 6, rolling supplies racks structure of the invention and assembly method are specific as follows:

M8*100 long screw 6-1 is penetrated in the hole of supplies support 6-7, is then lockked, is penetrated by M8 nut 6-2 Teflon gasket 6-3, then flange bearing 6-4 is penetrated, then penetrate round tube 6-5, then wear flange bearing 6-4, then penetrate Teflon pad Piece 6-3 is finally lockked with M8 stop nut 6-2, finally wire pushing roller 6-6 is placed on the wire feed frame mechanism of rolling, It carries out rolling examination drawing.Supplies racks support an intermediate round tube as drive rod using 2 flange bearings in left and right, and front and back uses spiral shell Silk is fixed, guarantees the flexibility of wire pushing roller movement, improves product print quality.

Claims

1. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics, including shell, the shell is interior to be equipped with XY Axle mould Group, print platform, rolls supplies racks and extruder at Z axis mould group, it is characterised in that: and the extruder includes the big aluminium block that radiates, In installation of radiating on big aluminium block there are two stepper motor, extrusion gear is installed on stepper motor, on two stepper motors also It is separately installed with left handle and right handle, is respectively and fixedly provided with V-groove bearing on left handle and right handle, it is solid below the big aluminium block that radiates It is fixed there are two thermally conductive red copper block, be provided with the trunnion for running through thermally conductive red copper block in each thermally conductive red copper block, the trunnion is solid It is scheduled on the big aluminium block of heat dissipation, the small aluminium block of heating is fixed on each trunnion, small aluminium block is heated and is located under thermally conductive red copper block Side is equipped with a nozzle on the small aluminium block of each heating, and an inductance type is also equipped on the big aluminium block of heat dissipation close to opening It closes, which is located between two nozzles, and equipped with radiator fan, rear end is equipped with wind-guiding for big aluminium block front end of radiating Device is fixedly installed with air blower on the airstream deflector.

2. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: institute Stating and rolling supplies racks includes supplies support, is equipped with long screw in supplies support, round tube, the round tube are equipped on long screw Both ends are supported by flange bearing and by being located at gasket, nut locking on the outside of flange bearing, and wire feed rolling is installed on round tube Wheel.

3. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: institute Stating print platform includes bracket, has spring groove on the bracket, and spring is placed in the spring groove, aluminium is arranged above spring Substrate is separately installed with a glass clamp in aluminum substrate four corners, and aluminum substrate is sequentially arranged above glass plate, galvanized sheet or stainless Steel plate, PC printed films or TPU printed films.

4. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: institute Stating XY Axle mould group includes X-axis mould group and Y-axis mould group, and wherein X-axis mould group includes left fixing piece, right fixing piece, left fixing piece and the right side Two optical axises are equipped between fixing piece, two optical axises are equipped with the sliding seat being slidably matched with optical axis for installing extruder, It is provided with synchronizing wheel on left fixing piece, right fixing piece, passes through synchronous band connection between two synchronizing wheels, wherein on right fixing piece It is also equipped with the stepper motor of driving synchronizing wheel rotation.

5. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: institute Stating Z axis mould group includes upper and lower two aluminium block fixing seats, has two straight optical axis, two line lights between two aluminium block fixing seats There is screw rod, screw rod bottom end is fastened on the stepper motor in aluminium block fixing seat, is equipped on screw rod and its spiral shell between axis The nut of line cooperation, is fixed with lifter plate on nut, and the lifter plate and straight optical axis are slidably matched, and installation printing is flat on lifter plate Platform.

6. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: institute State three sides of shell, a top surface all has opening, opening installation the heat-resisting version of PC to make shell formed a totally-enclosed knot Structure.

7. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: institute It states interior of shell and 2 ptc heaters is installed, for controlling interior of shell temperature.

8. a kind of multifunctional intellectual 3D printer for printing high-temperature engineering plastics as described in claim 1, it is characterised in that: The interior of shell is provided with fracture detection switch close to consumptive material part.