CN105216326B - The production technology of 3D printing consumptive material PLA wire rods - Google Patents
The production technology of 3D printing consumptive material PLA wire rods Download PDFInfo
- Publication number
- CN105216326B CN105216326B CN201510698757.7A CN201510698757A CN105216326B CN 105216326 B CN105216326 B CN 105216326B CN 201510698757 A CN201510698757 A CN 201510698757A CN 105216326 B CN105216326 B CN 105216326B
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- Prior art keywords
- pla
- rotating speed
- plastic wire
- screw rod
- wire
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
- B29C48/9185—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling in the direction of the stream of the material
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/918—Thermal treatment of the stream of extruded material, e.g. cooling characterized by differential heating or cooling
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of production technology of 3D printing consumptive material PLA wire rods, comprise the following steps：(1) stock up, PLA particles are mixed with toughener；(2) baking material, PLA mixed materials are added to the hopper baking material of extruder；(3) extrude, heat up melting under screw rod rotation and the electrical heating of heater effect, and melt enters extrusion die extrusion plastic wire rod under the rotation forces of screw rod；(4) cool down, by the plastic wire after extrusion successively by being cooled down in cooling, natural cooling and cold water in natural cooling, warm water；(5) dry, the plastic wire after cooling is cooled down by hair dryer；(6) detect and adjust, whether circularity, the size that plastic wire section is detected by measuring device reach defined scope；(7) wind.The production technology of the 3D printing consumptive material PLA wire rods of the present invention can improve wire roundness precision and stability, avoid producing bubble, be advantageous to improve print quality.
Description
Technical field
The present invention relates to plastics forming technique field, more particularly to a kind of production technology of 3D printing consumptive material PLA wire rods.
Background technology
3D printer is as a kind of accelerated accumulation manufacturing technology, because it is without machining or mould, just can directly from
The object of any shape is generated in computer graphics data, so as to the production cycle of greatly shortened product, improves life
Yield, it is widely used in all trades and professions by people.
The quality of material used in 3D printer then directly determines the outward appearance and performance of product.3D printing plastics in the past
The production method of wire rod causes raw material to reach molten condition using melt extrusion technology, then passes through extruder head extrusion plastic line
Material, plastic wire is wrapped by winder after supercooling.Pass through 3D printing plastic wire made of above-mentioned production technology
Circularity precision it is poor, stability is poor.
The content of the invention
For above-mentioned state of the art, the technical problems to be solved by the invention are, there is provided a kind of circularity precision height,
The production technology of the high 3D printing consumptive material PLA wire rods of stability.
In order to solve the above-mentioned technical problem, the production technology of a kind of 3D printing consumptive material PLA wire rods provided by the present invention, bag
Include following steps：
By weight, it is former that PLA mixing is made after 94~96 parts of PLA particles are well mixed with 4~6 parts of toughener
Material；
By PLA mixed materials add extruder hopper, extruder hopper to PLA mixed materials in 45~60 DEG C of temperature
Spend lower baking material 1.5-2 hours；
PLA mixed materials after drying enter in extruder barrel, are acted in screw rod rotation and the electrical heating of heater
Lower heating melting, melt enter extrusion die extrusion plastic wire rod under the rotation forces of screw rod；Wherein, barrel edge charging
Direction is divided into the firstth area, the secondth area, the 3rd area and the 4th area, to firstth area, secondth area, the 3rd area and
4th area is separately heated to following design temperature：168 DEG C, 178 DEG C, 175 DEG C and 179 DEG C, the extrusion die is heated
To following design temperature：170 DEG C~173 DEG C；The rotating speed of the screw rod is 50~60r/min；
Plastic wire after extrusion is first passed through into natural cooling, then cooled down in 40 DEG C~45 DEG C warm water, is then passed through certainly
So cooling, is finally cooled down in 28 DEG C~30 DEG C cold water；
The plastic wire after cooling is cooled down by hair dryer, dried；
Whether circularity, the size that plastic wire section is detected by measuring device reach defined scope, if it is not, then logical
The rotating speed of screw rod and the rotating speed of hauling machine are overregulated to adjust the size of plastic wire, by the temperature for adjusting the extrusion die
To adjust the circularity of plastic wire；With
The qualified products come out from hauling machine are wound into by disk by winder.
In one of the embodiments, it is further comprising the steps of：
The charging aperture of the barrel is cooled down by cooling device.
In one of the embodiments, by the rotating speed of adjusting screw rod and the rotating speed of hauling machine to adjust the chi of plastic wire
It is very little to be specially：When size is more than setting, the rotating speed of screw rod is reduced, increases the rotating speed of hauling machine；When size is less than setting
When, increase the rotating speed of screw rod, reduce the rotating speed of hauling machine.
In one of the embodiments, the temperature for adjusting the extrusion die is specially to adjust the circularity of plastic wire：
When circularity is more than setting, the temperature of the extrusion die is reduced.
Compared with prior art, the production technology of 3D printing consumptive material PLA wire rods provided by the invention, by increasing in the feed
Add toughener, reduce PLA material fragility and improve shock resistance, when can prevent printing from pimple, broken string, improve printing matter
Amount；By carrying out baking material to PLA mixed materials, the moisture in raw material is removed, bubble is prevented, influences print quality；Barrel
It is divided into four areas and carries out temperature control, the temperature in the firstth area is relatively low, prevents temperature to be transferred to hopper feed opening and make the temperature mistake of feed opening
Height, feed opening being blocked, the temperature in the secondth area increase by 10 DEG C on the basis of the firstth area, can improve melting effect, and the 3rd area exists
3 DEG C are dropped on the basis of secondth area, the temperature in the 4th area increases by 4 DEG C on the basis of the 3rd area, raw material can be made fully to melt, carried
Height melting effect；The temperature of extrusion die is relatively low, the circularity for the extrusion of wire that can go bail for；Natural cooling is first passed through during cooling, then
Cooled down by warm water, then by natural cooling, finally cooled down in cold water, the plastic wire from extrusion die extrusion can be made
Avoid by the temperature that plunges, so as to cause wire rod deformation, influence circularity precision, finally influence printing effect.
To sum up, the production technology of 3D printing consumptive material PLA wire rods of the invention can improve wire roundness precision and stability,
Avoid producing bubble, be advantageous to improve print quality.
Beneficial effect possessed by additional technical feature of the present invention will be said in this specification specific embodiment part
It is bright.
Brief description of the drawings
Fig. 1 is the flow chart of the production technology of the 3D printing consumptive material PLA wire rods in the embodiment of the present invention.
Description of reference numerals：1st, extruder；11st, hopper；12nd, barrel；13rd, extrusion die；2nd, tank；21st, warm water tank；
22nd, cold rinse bank；23rd, guide roller；24th, reservoir；25th, cold water storage cistern；3rd, hair dryer；4th, measuring device；5th, hauling machine；6th, wind
Machine.
Embodiment
Below with reference to the accompanying drawings and the present invention is described in detail in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in following embodiment and embodiment can be mutually combined.
Fig. 1 is the flow chart of the production technology of the 3D printing consumptive material PLA wire rods in the embodiment of the present invention, as shown in figure 1,3D
The production technology of printing consumables PLA wire rods comprises the following steps：
(1) stock up.By weight, it is made after 92~95 parts of PLA particles are well mixed with 4~6 parts of toughener
PLA mixed materials.PLA uses model 4032D PLA material, and such a PLA material has high circulation, it is advantageously ensured that modeling
The circularity accuracy of stockline material.By increasing toughener in the feed, reduce PLA material fragility and improve shock resistance, can
Pimple, broken string, improve print quality from during preventing printing.
(2) baking material.PLA mixed materials are added to the hopper 11 of extruder 1, PLA mixed in the hopper 11 of extruder 1 former
Material baking material 1.5-2 hours at a temperature of 45~60 DEG C.By carrying out baking material to PLA mixed materials, the moisture in raw material is removed, is prevented
Bubble is only produced, influences print quality.
(3) extrude.PLA mixed materials after drying enter in the barrel 12 of extruder 1, in screw rod rotation and heater
The lower heating melting of electrical heating effect, melt enter the extrusion plastic wire rod of extrusion die 13 under the rotation forces of screw rod；Wherein, institute
State barrel 12 and be divided into the firstth area, the secondth area, the 3rd area and the 4th area along feedstock direction, to firstth area, described second
Area, the 3rd area and the 4th area are separately heated to following design temperature：168 DEG C, 178 DEG C, 175 DEG C and 179 DEG C, by institute
State extrusion die 13 and be heated to following design temperature：170 DEG C~173 DEG C, the temperature is adjusted according to actual conditions.The screw rod
Rotating speed is 50~60r/min, and the rotating speed of screw rod is adjusted according to actual conditions.Barrel is divided into four areas and carries out temperature control, the firstth area
Temperature is relatively low, prevents temperature to be transferred to hopper feed opening and make the temperature of feed opening too high, feed opening being blocked, the temperature in the secondth area exists
Increase by 10 DEG C on the basis of firstth area, melting effect can be improved, the 3rd area drops 3 DEG C on the basis of the secondth area, the 4th area
Temperature increases by 4 DEG C on the basis of the 3rd area, raw material can be made fully to melt, and improves melting effect；The temperature of extrusion die compared with
It is low, the circularity for the extrusion of wire that can go bail for.More preferably, the charging aperture of the barrel is cooled down by cooling device, prevented
The temperature of the feed opening of hopper 11 is too high, feed opening being blocked.
(4) cool down.Plastic wire after extrusion first passes through natural cooling, tentatively to cool, enters back into tank 2 and cools down.Such as
Shown in Fig. 1, tank 2 is separated into warm water tank 21 and cold rinse bank 22 by dividing plate, is that warm water tank 21 provides cooling water by reservoir 24,
Water temperature in reservoir 24 is 40 DEG C~45 DEG C, is that cold rinse bank 22 provides cooling water by cold water storage cistern 25, the water in cold water storage cistern 25
Temperature is 28 DEG C~30 DEG C, and guide roller 23 is provided with warm water tank 21 and cold rinse bank 22.The guide roller 23 of the end of warm water tank 21
Highly it is higher than the water surface, so, after warm water cooling, wire rod is drawn into the water surface and carries out natural cooling.Natural cooling is first passed through during cooling,
Cooled down by warm water, then by natural cooling, finally cooled down in cold water again, the plastic cord from extrusion die extrusion can be made
Material is avoided by the temperature that plunges, and so as to cause wire rod deformation, influences circularity precision.
(5) dry.The plastic wire after cooling is cooled down by hair dryer 3, dried.
(6) detect and adjust.Whether circularity, the size that plastic wire section is detected by measuring device 4 reach defined
Scope (1.75mm, 3.0mm, error ± 0.03mm), if it is not, then by the rotating speed of adjusting screw rod and the rotating speed of hauling machine 5 with
The size of plastic wire is adjusted, the circularity of plastic wire is adjusted by adjusting the temperature of the extrusion die 13.Pass through regulation
The rotating speed of screw rod and the rotating speed of hauling machine 5 are specially to adjust the size of plastic wire：When size is more than setting, spiral shell is reduced
The rotating speed of bar, increase the rotating speed of hauling machine 5；When size is less than setting, increase the rotating speed of screw rod, reduce turning for hauling machine 5
Speed.The temperature for adjusting the extrusion die 13 is specially to adjust the circularity of plastic wire：When circularity is more than setting, reduce
The temperature of the extrusion die 13.
(7) wind.The qualified products come out from hauling machine 5 are wound into disk by winder 6.
By the reachable ± 0.03mm of the circularity of 3D printing consumptive material PLA wire rods made from above-mentioned production technology, circularity precision is high,
And stability is good.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (4)
1. a kind of production technology of 3D printing consumptive material PLA wire rods, it is characterised in that comprise the following steps：
By weight, PLA mixed materials are made after 94~96 parts of PLA particles are well mixed with 4~6 parts of toughener；
By PLA mixed materials add extruder hopper, extruder hopper to PLA mixed materials at a temperature of 45~60 DEG C
Baking material 1.5-2 hours；
PLA mixed materials after drying enter in extruder barrel, are risen under screw rod rotation and the electrical heating of heater effect
Temperature melting, melt enter extrusion die extrusion plastic wire rod under the rotation forces of screw rod；Wherein, the barrel is along feedstock direction
The firstth area, the secondth area, the 3rd area and the 4th area are divided into, to firstth area, secondth area, the 3rd area and described
4th area is separately heated to following design temperature：168 DEG C, 178 DEG C, 175 DEG C and 179 DEG C, by the extrusion die be heated to
Lower design temperature：170 DEG C~173 DEG C；The rotating speed of the screw rod is 50~60r/min；
Plastic wire after extrusion is first passed through into natural cooling, then cooled down in 40 DEG C~45 DEG C warm water, then by naturally cold
But, finally cooled down in 28 DEG C~30 DEG C cold water；
The plastic wire after cooling is cooled down by hair dryer, dried；
Whether circularity, the size that plastic wire section is detected by measuring device reach defined scope, if it is not, then passing through tune
The rotating speed of screw rod and the rotating speed of hauling machine are saved to adjust the size of plastic wire, is adjusted by adjusting the temperature of the extrusion die
Save the circularity of plastic wire；With
The qualified products come out from hauling machine are wound into by disk by winder.
2. the production technology of 3D printing consumptive material PLA wire rods according to claim 1, it is characterised in that also including following step
Suddenly：
The charging aperture of the barrel is cooled down by cooling device.
3. the production technology of 3D printing consumptive material PLA wire rods according to claim 1, it is characterised in that pass through adjusting screw rod
Rotating speed and the rotating speed of hauling machine be specially to adjust the size of plastic wire：When size is more than setting, screw rod is reduced
Rotating speed, increase the rotating speed of hauling machine；When size is less than setting, increase the rotating speed of screw rod, reduce the rotating speed of hauling machine.
4. the production technology of 3D printing consumptive material PLA wire rods according to claim 1, it is characterised in that adjust the extrusion
The temperature of die head is specially to adjust the circularity of plastic wire：When circularity is more than setting, the temperature of the extrusion die is reduced
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698757.7A CN105216326B (en) | 2015-10-21 | 2015-10-21 | The production technology of 3D printing consumptive material PLA wire rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698757.7A CN105216326B (en) | 2015-10-21 | 2015-10-21 | The production technology of 3D printing consumptive material PLA wire rods |
Publications (2)
| Publication Number | Publication Date |
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| CN105216326A CN105216326A (en) | 2016-01-06 |
| CN105216326B true CN105216326B (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510698757.7A Expired - Fee Related CN105216326B (en) | 2015-10-21 | 2015-10-21 | The production technology of 3D printing consumptive material PLA wire rods |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393646B (en) * | 2016-11-28 | 2018-08-21 | 中国科学院宁波材料技术与工程研究所 | A kind of 3D printing high temperature consumptive material wire-drawing equipment |
| CN107139451B (en) * | 2017-06-14 | 2019-09-10 | 安徽三绿实业有限公司 | A kind of efficient process units of 3D printing consumptive material |
| EP3479992A1 (en) | 2017-11-01 | 2019-05-08 | Haute Ecole d'Ingénierie et de Gestion du Canton de Vaud (HEIG-VD) | Device and method for recycling plastic materials |
| CN111703043B (en) * | 2020-06-30 | 2021-04-27 | 哈尔滨坤程科技有限公司 | Carbon fiber PLA composite wire and preparation process thereof |
| CN113500759B (en) * | 2021-07-08 | 2023-04-18 | 同光(昆山)生物科技有限公司 | Preparation device and method of 3D printing wire with high bioceramic content |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441538A (en) * | 2014-07-11 | 2015-03-25 | 东莞市松湖塑料机械有限公司 | Continuous production method of 3D printing plastic wires |
| CN104725806A (en) * | 2015-04-01 | 2015-06-24 | 深圳市光华伟业实业有限公司 | Polylactic acid toughened material for 3D printing and preparation method thereof |
-
2015
- 2015-10-21 CN CN201510698757.7A patent/CN105216326B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441538A (en) * | 2014-07-11 | 2015-03-25 | 东莞市松湖塑料机械有限公司 | Continuous production method of 3D printing plastic wires |
| CN104725806A (en) * | 2015-04-01 | 2015-06-24 | 深圳市光华伟业实业有限公司 | Polylactic acid toughened material for 3D printing and preparation method thereof |
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| CN105216326A (en) | 2016-01-06 |
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