CN110315746A - Small draw ratio extrusion screw rod and extrusion device - Google Patents
Small draw ratio extrusion screw rod and extrusion device Download PDFInfo
- Publication number
- CN110315746A CN110315746A CN201910716058.9A CN201910716058A CN110315746A CN 110315746 A CN110315746 A CN 110315746A CN 201910716058 A CN201910716058 A CN 201910716058A CN 110315746 A CN110315746 A CN 110315746A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- draw ratio
- extrusion screw
- extrusion
- small draw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 66
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims description 49
- 238000001816 cooling Methods 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000010146 3D printing Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 description 15
- 229920001169 thermoplastic Polymers 0.000 description 15
- 239000004416 thermosoftening plastic Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000012815 thermoplastic material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000011257 shell material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive 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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/295—Heating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The present invention provides a kind of small draw ratio extrusion screw rods, including extrusion screw rod ontology, the extrusion screw rod ontology includes the gripping section being sequentially connected and compression extruding zone, the outer surface of the compression extruding zone is equipped with thread-like groove, and the groove depth of the thread-like groove close to gripping section one end to far from gripping section one end by being gradually reduced.The beneficial effects of the present invention are: provide a kind of compact-sized, light-weight small draw ratio extrusion screw rod, the screw rod is while ensure that screw rod intensity itself, material can be loaded into screw flight shape groove easily and realize material transportation, it is light using the extrusion equipment overall weight of the screw rod, precision is high, load the 3D printing mode small, especially suitable extruder is moved with XYZ axis.
Description
Technical field
The present invention relates to 3D printing equipment technical field, a kind of small draw ratio extrusion screw rod and extrusion device are referred in particular to.
Background technique
3D printer is squeezed the thermoplastic material of molten condition by nozzle by heating thermoplastic material and through extrusion screw rod
Out, thermoplastic material filament is formed, successively building component realizes 3D printing since bottom.
The size of existing thermoplastic granulates is that 3-5mm needs in order to smoothly squeeze out the granular materials of this size
Outer screw diameter it is big, draw ratio also causes greatly volume also big, correspondingly also can be very heavy, be unfavorable for print head and follow printing device
The 3D mode of X, Y, Z axis movement.
It needs to reform the prior art.
Summary of the invention
The technical problems to be solved by the present invention are: providing, one kind is structurally reasonable, major diameter is smaller, the extrusion of lighter weight
Screw rod and extrusion device.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of small draw ratio extrusion screw rod, including
Extrusion screw rod ontology, the extrusion screw rod ontology include the gripping section being sequentially connected, feed end and compression extruding zone, the charging
End and the outer surface of compression extruding zone are equipped with thread-like groove, and the groove depth of the thread-like groove is by feed end close to gripping section
The end of one end to compression extruding zone is gradually reduced.
Further, the groove depth of the thread-like groove close to gripping section one end to distal end by uniformly reducing, the screw thread
Groove depth of the shape groove close to gripping section one end is 2.5-1mm, and groove depth of the thread-like groove close to distal end is 1-0.5mm.
Further, blender installation position is equipped between the gripping section and feed end.
Further, the outer diameter of the feed zone and compression extruding zone is isometrical, the feed zone and compression extruding zone
Outer diameter is 8-6mm.
Further, the outer diameter of the feed zone is 12-6mm, and the outer diameter of the compression extruding zone is 8-4mm.
The invention further relates to a kind of extrusion equipment, including small draw ratio extrusion screw rod, funnel described in above-mentioned any one,
Feed zone barrel, heating cylinder and nozzle, the funnel lower end are connect with feed zone barrel, feed zone barrel lower end with plus
The connection of hot material cylinder, the lower end of the heating cylinder are connect with nozzle, and the small draw ratio extrusion screw rod gos deep into the heating cylinder,
The small draw ratio extrusion screw rod can be rotated relative to the heating cylinder.
Further, the heating cylinder is from top to bottom successively arranged pan feeding section, compression section and bringing-up section, the pan feeding section
Inside funnel-form with a narrow upper and lower width, the compression extruding zone of the internal diameter of the compression section and the small draw ratio extrusion screw rod
Outer diameter adaptation, the outside of the pan feeding section are equipped with the first heating coil, and the outside of the bringing-up section is equipped with the second heating coil.
Further, the small draw ratio screw rod is equipped with blender, and the blender is set to the small draw ratio spiral shell
Between the gripping section and feed zone of bar.
Further, the outside of the nozzle is equipped with air guide hole, and the air guide hole passes through cooling air channel and cooling fan phase
Even.
Further, the discharge port diameter of the nozzle is 0.2-1.2mm.
The beneficial effects of the present invention are: provide a kind of compact-sized, light-weight small draw ratio extrusion screw rod, the spiral shell
Material can be loaded into screw flight shape groove easily while ensure that screw rod intensity itself and realize material fortune by bar
Defeated, light using the extrusion equipment overall weight of the screw rod, precision is high, loads the 3D small, especially suitable extruder is moved with XYZ axis
Printing model.
Detailed description of the invention
Specific structure of the invention is described in detail with reference to the accompanying drawing:
Fig. 1 is the structural schematic diagram of small draw ratio extrusion screw rod of the invention；
Fig. 2 is the structural schematic diagram of the extrusion device of the invention using small draw ratio extrusion screw rod；
Fig. 3 is the schematic diagram of the section structure of the extrusion device of the invention using small draw ratio extrusion screw rod；
10- extrusion screw rod ontology；11- gripping section；12- feed zone；13- compresses extruding zone；14- thread-like groove；
21- funnel；22- feed zone barrel；23- heating cylinder；24- nozzle；25- barrel thermal insulation board；26- blender；
The first heating coil of 31-；The second heating coil of 32-；41- driving motor；42- shaft coupling.
Specific embodiment
In order to describe the technical content, the structural feature, the achieved object and the effect of this invention in detail, below in conjunction with embodiment
And attached drawing is cooperated to be explained in detail.
Embodiment 1
Referring to Fig. 1, a kind of small draw ratio extrusion screw rod, including extrusion screw rod ontology 10, the extrusion screw rod ontology 10
Including the gripping section 11, feed zone 12 and compression extruding zone 13 being sequentially connected, the feed zone 12 is outer with compression extruding zone 13
Diameter can be equal, can also be unequal, and when outer diameter is equal, outer diameter can be 8-6mm, preferably 8mm.The feed zone 12 and pressure
The outer surface of contracting extruding zone 13 is equipped with thread-like groove 14, the groove depth of the thread-like groove 14 by close to gripping section one end to
It is gradually reduced far from gripping section one end, wherein the groove depth of the thread-like groove is by close to gripping section one end to separate gripping section one
End uniformly reduces, and groove depth of the thread-like groove close to gripping section one end is 1.5mm, and the thread-like groove is far from gripping section
The groove depth of one end is 0.5mm, is especially suitable for diameter in the pan feeding of the thermoplastic granulates material of 0.5-1mm, cooperates heating cylinder, can be with
It allows the thermoplastic granulates material of molten condition to keep certain compression ratio, allows the thermoplastic granulates material of molten condition by certain pressure
It conveys forwards.
It results in blockage to guarantee that thermoplastic granulates material will not be overstock on the top of heating cylinder, in the clamping of diameter progressive screw
Blender is additionally provided between section and feed zone.
When the outer diameter of feed zone and compression extruding zone is unequal, the outer diameter of feed zone is 12-6mm, and the compression squeezes out
The outer diameter of section is 8-4mm, also can be filled into thermoplastic granulates material well and carry out compression extrusion to thermoplastic granulates material.
Embodiment 2
Please refer to Fig. 2 and Fig. 3, the invention further relates to a kind of extrusion equipment, including above-mentioned small draw ratio extrusion screw rod,
The lower end of funnel 21, feed zone barrel 22, heating cylinder 23 and nozzle 24, the funnel 21 is connect with feed zone barrel 22, is
Guarantee that thermoplastic granulates material will not just melted by heat be agglomerated in advance in funnel 21 or feed zone barrel 22, can not normally enter and add
The phenomenon that bringing-up section of hot material cylinder, generation bridge formation fracture, barrel thermal insulation board 25 is additionally provided between funnel 21 and feed zone barrel 22,
The feed zone barrel 22 is also made of insulated heat material, and the heat transfer of heating cylinder can be further prevented to feed zone material
Cylinder 22 or funnel 21, the lower end of the feed zone barrel 22 are connect with heating cylinder 23, the lower end of the heating cylinder 23 and spray
Mouth 24 connects.
Upward, feed end 12 and compression extruding zone 13 go deep into institute to the gripping section 11 of the small draw ratio extrusion screw rod facing downward
Heating cylinder 23 is stated, the heating cylinder 23 is from top to bottom successively arranged pan feeding compression section, heating extruding zone, the pan feeding compression
The inside funnel-form with a narrow upper and lower width of section, the internal diameter of the heating extruding zone and the extruding zone of the small draw ratio extrusion screw rod
Outer diameter adaptation, the outside of the pan feeding compression section is equipped with the first heating coil 31, and the outside of the heating extruding zone is equipped with the
Two heating coils 32, two groups of heating coils of setting are that thermoplastic granulates material crosses heat fusing and leads to arch formation in order to prevent, it is upper plus
The temperature of hot arc needs the melting temperature of slightly below material, it is therefore desirable to the first heating coil 31 of smaller power, and in order to protect
Conveying effect is demonstrate,proved, then in the second heating coil 32 of the outside setting relatively high power of heating extruding zone, heating temperature is thermoplastic
The melting temperature of property particulate material, in order to guarantee that heating effect, the first heating coil 31 and the second heating coil 32 are respectively equipped with survey
Galvanic couple is warmed, the heating temperature of the first heating coil 31 and the second heating coil 32 can be precisely controlled through external temperature controller.
The compression extruding zone 13 of the small draw ratio extrusion screw rod is corresponding to be located in heating cylinder 23, in the top of funnel 21
Equipped with driving motor 41, the drive shaft of the driving motor 41 passes through the clamping of shaft coupling 42 and the small draw ratio extrusion screw rod
Section 11 connects, and driving motor 41 drives the small draw ratio extrusion screw rod can the relatively described heating cylinder 23 in heating cylinder 23
Rotation.
It results in blockage to guarantee that thermoplastic granulates material will not be overstock on the top of heating cylinder, the small draw ratio squeezes out
Screw rod is equipped with blender 26, and the blender 26 is set to the gripping section 11 and feed zone 12 of the small draw ratio extrusion screw rod
Between, blender 26, which can be played, stirs the effect for dissipating and conveying downwards for material, and blender 26 is located in feed zone barrel, preferably
, blender is stirring blade.
In order to guarantee to squeeze out the extrusion effect of silk, the discharge port diameter of the nozzle 24 is preferably 0.2-1.2mm.
Desired solidification temperature is reached in order to guarantee that extrusion silk is capable of fast cooling, the outside of the nozzle is equipped with wind-guiding
Mouthful, the air guide hole is connected by cooling air channel with cooling fan.
It, can be by the thermoplastic granulates material fragmentation of conventional partial size 2-5mm at described in order to preferably feed
The partial size of 0.5-2.0mm can also directly be prepared into the partial size of the 0.5-2.0mm, work when preparing thermoplastic granulates material
When making, diameter is loaded into for 0.5-2mm thermoplastic granulates material by funnel, thermoplasticity by the timing automatic feeder of distal end connection
Pellet enters the feed zone barrel of insulated heat material by funnel, in self weight and the work of the paddle of small draw ratio extrusion screw rod
Under, thermoplastic granulates material enters the pan feeding compression section of heating cylinder, is enclosed herein by the first fever on the outside of pan feeding compression section
Heating, becomes the material of molten condition, subsequently into the thread-like groove of the compression extruding zone of small draw ratio extrusion screw rod, drives
Dynamic motor drives small draw ratio extrusion screw rod rotation, and the material of molten condition is compressed and keeps certain pressure to far from folder with this
Hold the conveying of section one end, and then the second heating coil for being heated extruding zone further heats, and finally enters nozzle chamber, then by
Nozzle flows out to form extrusion silk.
Cooling fan, from the annular air guide hole blowout on the outside of nozzle, carries out fast cooling to silk is squeezed out by cooling air channel,
To guarantee to squeeze out the precision of silk.
As can be seen from the above description, the beneficial effects of the present invention are: provide a kind of compact-sized, light-weight small major diameter
Than extrusion screw rod, which it is recessed can be loaded into screw flight shape for material easily while ensure that screw rod intensity itself
Material transportation is realized in slot, light using the extrusion equipment overall weight of the screw rod, precision is high, loads small, especially suitable extruder
The 3D printing mode moved with XYZ axis.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of small draw ratio extrusion screw rod, it is characterised in that: including extrusion screw rod ontology, the extrusion screw rod ontology include according to
The outer surface of secondary connected gripping section, feed end and compression extruding zone, the feed end and compression extruding zone is equipped with shape of threads
The groove depth of groove, the thread-like groove is gradually reduced by feed end close to the end of gripping section one end to compression extruding zone.
2. small draw ratio extrusion screw rod as described in claim 1, it is characterised in that: the groove depth of the thread-like groove is by close
Gripping section one end uniformly reduces to distal end, and groove depth of the thread-like groove close to gripping section one end is 2.5-1mm, the screw thread
Groove depth of the shape groove close to distal end is 1-0.5mm.
3. small draw ratio extrusion screw rod as claimed in claim 2, it is characterised in that: be equipped between the gripping section and feed end
Blender installation position.
4. small draw ratio extrusion screw rod as claimed in claim 3, it is characterised in that: the feed zone is outer with compression extruding zone
Diameter be it is isometrical, the feed zone and compression extruding zone outer diameter be 8-6mm.
5. small draw ratio extrusion screw rod as claimed in claim 3, it is characterised in that: the outer diameter of the feed zone is 12-6mm,
The outer diameter of the compression extruding zone is 8-4mm.
6. a kind of extrusion equipment, it is characterised in that: including small draw ratio extrusion screw rod described in claim 1-5 any one,
Funnel, feed zone barrel, heating cylinder and nozzle, the funnel lower end are connect with feed zone barrel, under the feed zone barrel
End is connect with heating cylinder, and the lower end of the heating cylinder is connect with nozzle, and the small draw ratio extrusion screw rod is deeply described to be added
Hot material cylinder, the small draw ratio extrusion screw rod can be rotated relative to the heating cylinder.
7. extrusion equipment as claimed in claim 6, it is characterised in that: the heating cylinder is from top to bottom successively arranged pan feeding
Section, compression section and bringing-up section, the inside funnel-form with a narrow upper and lower width of the pan feeding section, the internal diameter of the compression section with it is described small
The outer diameter adaptation of the compression extruding zone of draw ratio extrusion screw rod, the outside of the pan feeding section is equipped with the first heating coil, described to add
The outside of hot arc is equipped with the second heating coil.
8. extrusion equipment as claimed in claim 7, it is characterised in that: the small draw ratio screw rod is equipped with blender, described
Blender is set between the gripping section and feed zone of the small draw ratio screw rod.
9. extrusion equipment as claimed in claim 8, it is characterised in that: the outside of the nozzle is equipped with air guide hole, the wind-guiding
Mouth is connected by cooling air channel with cooling fan.
10. extrusion equipment as claimed in claim 9, it is characterised in that: the discharge port diameter of the nozzle is 0.2-1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716058.9A CN110315746A (en) | 2019-08-05 | 2019-08-05 | Small draw ratio extrusion screw rod and extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716058.9A CN110315746A (en) | 2019-08-05 | 2019-08-05 | Small draw ratio extrusion screw rod and extrusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110315746A true CN110315746A (en) | 2019-10-11 |
Family
ID=68125350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716058.9A Pending CN110315746A (en) | 2019-08-05 | 2019-08-05 | Small draw ratio extrusion screw rod and extrusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110315746A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021074129A1 (en) * | 2019-10-17 | 2021-04-22 | Basf Se | A process for producing a three-dimensional (3d) object employing granulates |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU49781A1 (en) * | 1964-11-06 | 1966-01-05 | ||
| GB1270168A (en) * | 1968-07-02 | 1972-04-12 | Barmag Barmer Maschf | Screw extruder |
| US4832889A (en) * | 1988-01-04 | 1989-05-23 | Mobil Oil Corporation | Vaulted screw/grooved barrel extrusion machine, method and system |
| EP0112290B1 (en) * | 1982-12-21 | 1989-09-27 | Maillefer S.A. | Screw extruder for plastic material |
| US5823668A (en) * | 1997-05-29 | 1998-10-20 | Spirex Corporation | Extruder and extrusion screw therefor |
| CN106217867A (en) * | 2016-07-20 | 2016-12-14 | 西北工业大学 | A kind of screw increases material and manufactures shower nozzle |
| CN208215971U (en) * | 2018-04-25 | 2018-12-11 | 常州市圣耀塑胶科技有限公司 | A kind of extruder screw |
| CN109705555A (en) * | 2019-01-02 | 2019-05-03 | 林素治 | Barrier properties for gases degradable plastic masterbatch, conical double screw extruder, injection molding production and processing assembly line |
| CN210362493U (en) * | 2019-08-05 | 2020-04-21 | 深圳市畅形增材科技有限公司 | Small length-diameter ratio extrusion screw and extrusion device |
-
2019
- 2019-08-05 CN CN201910716058.9A patent/CN110315746A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU49781A1 (en) * | 1964-11-06 | 1966-01-05 | ||
| GB1270168A (en) * | 1968-07-02 | 1972-04-12 | Barmag Barmer Maschf | Screw extruder |
| EP0112290B1 (en) * | 1982-12-21 | 1989-09-27 | Maillefer S.A. | Screw extruder for plastic material |
| US4832889A (en) * | 1988-01-04 | 1989-05-23 | Mobil Oil Corporation | Vaulted screw/grooved barrel extrusion machine, method and system |
| US5823668A (en) * | 1997-05-29 | 1998-10-20 | Spirex Corporation | Extruder and extrusion screw therefor |
| CN106217867A (en) * | 2016-07-20 | 2016-12-14 | 西北工业大学 | A kind of screw increases material and manufactures shower nozzle |
| CN208215971U (en) * | 2018-04-25 | 2018-12-11 | 常州市圣耀塑胶科技有限公司 | A kind of extruder screw |
| CN109705555A (en) * | 2019-01-02 | 2019-05-03 | 林素治 | Barrier properties for gases degradable plastic masterbatch, conical double screw extruder, injection molding production and processing assembly line |
| CN210362493U (en) * | 2019-08-05 | 2020-04-21 | 深圳市畅形增材科技有限公司 | Small length-diameter ratio extrusion screw and extrusion device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021074129A1 (en) * | 2019-10-17 | 2021-04-22 | Basf Se | A process for producing a three-dimensional (3d) object employing granulates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106573405B (en) | By for the particle and/or liquid flow-conditioning with the 3D printer handpiece of particle and/or liquid | |
| CN110315746A (en) | Small draw ratio extrusion screw rod and extrusion device | |
| CN104099675A (en) | Electrostatic spinning device available for 3D (three-dimensional) printing | |
| CN106863774A (en) | A kind of colour mixture prints miniature extrusion shower nozzle | |
| CN104760282A (en) | Three-dimensional printer | |
| CN106808692B (en) | Anti-clogging 3D printing ejecting device | |
| CN106853685A (en) | The shower nozzle heat abstractor of 3D printer | |
| CN110126236A (en) | Diameter progressive screw and the thermoplastic granulates material molten extrusion device for using diameter progressive screw | |
| CN108436089A (en) | A kind of gradient-heated ejecting device for fusion sediment type metal 3D printing | |
| CN204687359U (en) | A kind of three-dimensional printer | |
| CN107139479B (en) | The working method of the blender of melting extrusion formula colour 3D printing head | |
| CN204701149U (en) | A kind of 3 D-printing head | |
| CN108788157A (en) | A kind of increasing material manufacturing device and method | |
| CN204217792U (en) | Food printer heating system and the food printer printed for chocolate | |
| CN109397686A (en) | A kind of mixing extruder head for 3 D-printing | |
| CN206030553U (en) | Hot mouth of second grade heating and adopt this hot mouth increase material formula 3D printer with hot -blast structure | |
| CN110253884A (en) | Compound extruded 3D printing spray head and 3D printer | |
| CN210453801U (en) | Reducing screw and thermoplastic particle material melt extrusion device adopting same | |
| CN211360559U (en) | Flame-retardant heat-insulation riser | |
| CN110815811A (en) | Novel Dragon Hotend printing head for 3D printer | |
| CN104382214A (en) | Food printing forming machine | |
| CN208148503U (en) | One kind being used for fusion sediment type metal 3D printing ejecting device | |
| CN201143561Y (en) | Die casting machine charging barrel and die casting machine including the charging barrel | |
| CN211558778U (en) | Heating type food 3D printing extruding device in side-opening door | |
| CN107351340A (en) | A kind of horizontal injection press for preheating efficiency high |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |