CN105216326A - The production technology of 3D printing consumables PLA wire rod - Google Patents
The production technology of 3D printing consumables PLA wire rod Download PDFInfo
- Publication number
- CN105216326A CN105216326A CN201510698757.7A CN201510698757A CN105216326A CN 105216326 A CN105216326 A CN 105216326A CN 201510698757 A CN201510698757 A CN 201510698757A CN 105216326 A CN105216326 A CN 105216326A
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- pla
- rotating speed
- plastic wire
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- production technology
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Classifications
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- 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 consumables PLA wire rod, comprise the following steps: (1) gets the raw materials ready, PLA particle is mixed with flexibilizer; (2) dry material, hopper PLA mixed material being added extruder dries material; (3) extrude, screw rod rotate and heater electrical heating effect under to heat up melting, melt enters extrusion die extrusion plastic wire rod under the rotation forces of screw rod; (4) cool, by the plastic wire after extruding successively through naturally cooling, cooling in warm water, naturally cool and cool in cold water; (5) dry, by hair dryer, cooled plastic wire is cooled; (6) detect and regulate, by the scope that measuring device detects the circularity in plastic wire cross section, whether size reaches regulation; (7) rolling.The production technology of 3D printing consumables PLA wire rod of the present invention can improve wire roundness precision and stability, avoids producing bubble, is conducive to improving print quality.
Description
Technical field
The present invention relates to plastics forming technique field, particularly relate to a kind of production technology of 3D printing consumables PLA wire rod.
Background technology
3D printer is as a kind of accelerated accumulation manufacturing technology, because it is without the need to machining or mould, the object of any shape just directly can be generated from computer graphics data, thus the production cycle of greatly shortened product, improve productivity ratio, be widely used in all trades and professions by people.
The quality of the material that 3D printer uses then directly determines outward appearance and the performance of product.The production method that 3D in the past prints plastic wire utilizes melt extrusion technology to make raw material reach molten condition, then by extruder head extrusion plastic wire rod, after supercooling, carries out package by winder to plastic wire.The circularity precision that the 3D made by above-mentioned production technology prints plastic wire is poor, poor stability.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, provides the production technology of the 3D printing consumables PLA wire rod that a kind of circularity precision is high, stability is high.
In order to solve the problems of the technologies described above, the production technology of a kind of 3D printing consumables PLA wire rod provided by the present invention, comprises the steps:
By weight, the PLA particle of 94 ~ 96 parts is mixed rear obtained PLA mixed material with the flexibilizer of 4 ~ 6 parts;
PLA mixed material is added the hopper of extruder, at the hopper of extruder, material 1.5-2 hour is dried at 45 ~ 60 DEG C of temperature to PLA mixed material;
PLA mixed material after oven dry enters in extruder barrel, screw rod rotate and heater electrical heating effect under to heat up melting, melt enters extrusion die extrusion plastic wire rod under the rotation forces of screw rod; Wherein, described barrel is divided into the firstth district, the secondth district, the 3rd district and the 4th district successively along feedstock direction, following design temperature is heated to respectively to described firstth district, described secondth district, described 3rd district and described 4th district: 168 DEG C, 178 DEG C, 175 DEG C and 179 DEG C, described extrusion die is heated to following design temperature: 170 DEG C ~ 173 DEG C; The rotating speed of described screw rod is 50 ~ 60r/min;
By the plastic wire after extruding first through naturally cooling, then cooling in 40 DEG C ~ 45 DEG C warm water, then through naturally cooling, finally cooling in 28 DEG C ~ 30 DEG C cold water;
By hair dryer, cooled plastic wire is cooled, dry;
By the scope that measuring device detects the circularity in plastic wire cross section, whether size reaches regulation, if not, then by the rotating speed of adjusting screw(rod) and the rotating speed of hauling machine to regulate the size of plastic wire, by regulating the temperature of described extrusion die to regulate the circularity of plastic wire; With
Dish is wound into by from hauling machine qualified products out by winder.
Wherein in an embodiment, further comprising the steps of:
Cooled by the charging aperture of cooling device to described barrel.
Wherein in an embodiment, be specially to regulate the size of plastic wire by the rotating speed of adjusting screw(rod) and the rotating speed of hauling machine: when size is greater than setting, reduce the rotating speed of screw rod, 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.
Wherein in an embodiment, the temperature of described extrusion die is regulated to be specially to regulate the circularity of plastic wire: when circularity is greater than setting, to reduce the temperature of described extrusion die.
Compared with prior art, the production technology of 3D printing consumables PLA wire rod provided by the invention, by increasing flexibilizer in the feed, reducing PLA material fragility and improving shock resistance, can prevent from playing pimple, broken string when printing, improve print quality; By carrying out baking material to PLA mixed material, remove the moisture in raw material, prevent bubble, affect print quality; Barrel is divided into four districts to carry out temperature control, the temperature in the firstth district is lower, preventing temperature to be passed to hopper feed opening makes the temperature of feed opening too high, feed opening being blocked, the temperature in the secondth district increases by 10 DEG C on the basis in the firstth district, can improve melting effect, 3rd district falls 3 DEG C on the basis in the secondth district, the temperature in the 4th district increases by 4 DEG C on the basis in the 3rd district, can make the abundant melting of raw material, improves melting effect; The temperature of extrusion die is lower, can go bail for and extrude the circularity of wire rod; First through naturally cooling during cooling, then cooled by warm water, then through naturally cooling, finally cool in cold water, the plastic wire extruded from extrusion die can be made to avoid through quench, thus cause wire rod to be out of shape, affect circularity precision, finally affect printing effect.
To sum up, the production technology of 3D printing consumables PLA wire rod of the present invention can improve wire roundness precision and stability, avoids producing bubble, is conducive to improving print quality.
The beneficial effect that additional technical feature of the present invention has will be described in this description detailed description of the invention part.
Accompanying drawing explanation
Fig. 1 is the flow chart of the production technology of 3D printing consumables PLA wire rod in the embodiment of the present invention.
Description of reference numerals: 1, extruder; 11, hopper; 12, barrel; 13, extrusion die; 2, tank; 21, warm water tank; 22, cold rinse bank; 23, guide roller; 24, reservoir; 25, cold water storage cistern; 3, hair dryer; 4, measuring device; 5, hauling machine; 6, winder.
Detailed description of the invention
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
Fig. 1 is the flow chart of the production technology of 3D printing consumables PLA wire rod in the embodiment of the present invention, and as shown in Figure 1, the production technology of 3D printing consumables PLA wire rod comprises the following steps:
(1) get the raw materials ready.By weight, the PLA particle of 92 ~ 95 parts is mixed rear obtained PLA mixed material with the flexibilizer of 4 ~ 6 parts.PLA adopts model to be the PLA material of 4032D, and this kind of PLA material has high circulation, is conducive to the circularity accuracy guaranteeing plastic wire.By increasing flexibilizer in the feed, reducing PLA material fragility and improving shock resistance, can prevent from playing pimple, broken string when printing, improve print quality.
(2) material is dried.PLA mixed material is added the hopper 11 of extruder 1, at 45 ~ 60 DEG C of temperature, dry material 1.5-2 hour at hopper 11 pairs of PLA mixed materials of extruder 1.By carrying out baking material to PLA mixed material, remove the moisture in raw material, prevent bubble, affect print quality.
(3) extrude.PLA mixed material after oven dry enters in extruder 1 barrel 12, screw rod rotate and heater electrical heating effect under to heat up melting, melt enters extrusion die 13 extrusion plastic wire rod under the rotation forces of screw rod; Wherein, described barrel 12 is divided into the firstth district, the secondth district, the 3rd district and the 4th district successively along feedstock direction, following design temperature is heated to respectively to described firstth district, described secondth district, described 3rd district and described 4th district: 168 DEG C, 178 DEG C, 175 DEG C and 179 DEG C, described extrusion die 13 is heated to following design temperature: 170 DEG C ~ 173 DEG C, this temperature regulates according to actual conditions.The rotating speed of described screw rod is 50 ~ 60r/min, and the rotating speed of screw rod regulates according to actual conditions.Barrel is divided into four districts to carry out temperature control, the temperature in the firstth district is lower, preventing temperature to be passed to hopper feed opening makes the temperature of feed opening too high, feed opening being blocked, the temperature in the secondth district increases by 10 DEG C on the basis in the firstth district, can improve melting effect, 3rd district falls 3 DEG C on the basis in the secondth district, the temperature in the 4th district increases by 4 DEG C on the basis in the 3rd district, can make the abundant melting of raw material, improves melting effect; The temperature of extrusion die is lower, can go bail for and extrude the circularity of wire rod.More preferably, cooled by the charging aperture of cooling device to described barrel, prevent the temperature of hopper 11 feed opening too high, feed opening being blocked.
(4) cool.Plastic wire after extruding, first through naturally cooling, tentatively to lower the temperature, then entering tank 2 and cools.As shown in Figure 1, tank 2 becomes warm water tank 21 and cold rinse bank 22 by baffle for separating, by reservoir 24 for warm water tank 21 provides cooling water, water temperature in reservoir 24 is 40 DEG C ~ 45 DEG C, by cold water storage cistern 25 for cold rinse bank 22 provides cooling water, water temperature in cold water storage cistern 25 is 28 DEG C ~ 30 DEG C, is provided with guide roller 23 in warm water tank 21 and cold rinse bank 22.Wire rod, higher than the water surface, like this, after warm water cooling, is drawn the water surface and is carried out nature cooling by the height of the guide roller 23 of warm water tank 21 end.First through naturally cooling during cooling, then being cooled by warm water, then through naturally cooling, finally cooling in cold water, the plastic wire extruded from extrusion die can be made to avoid through quench, thus cause wire rod to be out of shape, affect circularity precision.
(5) dry.By hair dryer 3, cooled plastic wire is cooled, dry.
(6) detect and regulate.By the scope (1.75mm that measuring device 4 detects the circularity in plastic wire cross section, whether size reaches regulation, 3.0mm, error ± 0.03mm), if not, then by the rotating speed of adjusting screw(rod) and the rotating speed of hauling machine 5 to regulate the size of plastic wire, by regulating the temperature of described extrusion die 13 to regulate the circularity of plastic wire.Be specially to regulate the size of plastic wire by the rotating speed of adjusting screw(rod) and the rotating speed of hauling machine 5: when size is greater than setting, reduce the rotating speed of screw rod, increase the rotating speed of hauling machine 5; When size is less than setting, increase the rotating speed of screw rod, reduce the rotating speed of hauling machine 5.The temperature of described extrusion die 13 is regulated to be specially to regulate the circularity of plastic wire: when circularity is greater than setting, to reduce the temperature of described extrusion die 13.
(7) rolling.Dish is wound into by winder 6 by from hauling machine 5 qualified products out.
The circularity of the 3D printing consumables PLA wire rod obtained by above-mentioned production technology can reach ± 0.03mm, and circularity precision is high, and good stability.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (4)
1. a production technology for 3D printing consumables PLA wire rod, is characterized in that, comprise the steps:
By weight, the PLA particle of 94 ~ 96 parts is mixed rear obtained PLA mixed material with the flexibilizer of 4 ~ 6 parts;
PLA mixed material is added the hopper of extruder, at the hopper of extruder, material 1.5-2 hour is dried at 45 ~ 60 DEG C of temperature to PLA mixed material;
PLA mixed material after oven dry enters in extruder barrel, screw rod rotate and heater electrical heating effect under to heat up melting, melt enters extrusion die extrusion plastic wire rod under the rotation forces of screw rod; Wherein, described barrel is divided into the firstth district, the secondth district, the 3rd district and the 4th district successively along feedstock direction, following design temperature is heated to respectively to described firstth district, described secondth district, described 3rd district and described 4th district: 168 DEG C, 178 DEG C, 175 DEG C and 179 DEG C, described extrusion die is heated to following design temperature: 170 DEG C ~ 173 DEG C; The rotating speed of described screw rod is 50 ~ 60r/min;
By the plastic wire after extruding first through naturally cooling, then cooling in 40 DEG C ~ 45 DEG C warm water, then through naturally cooling, finally cooling in 28 DEG C ~ 30 DEG C cold water;
By hair dryer, cooled plastic wire is cooled, dry;
By the scope that measuring device detects the circularity in plastic wire cross section, whether size reaches regulation, if not, then by the rotating speed of adjusting screw(rod) and the rotating speed of hauling machine to regulate the size of plastic wire, by regulating the temperature of described extrusion die to regulate the circularity of plastic wire; With
Dish is wound into by from hauling machine qualified products out by winder.
2. the production technology of 3D printing consumables PLA wire rod according to claim 1, is characterized in that, further comprising the steps of:
Cooled by the charging aperture of cooling device to described barrel.
3. the production technology of 3D printing consumables PLA wire rod according to claim 1, it is characterized in that, be specially to regulate the size of plastic wire by the rotating speed of adjusting screw(rod) and the rotating speed of hauling machine: when size is greater than setting, reduce the rotating speed of screw rod, 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 consumables PLA wire rod according to claim 1, is characterized in that, regulates the temperature of described extrusion die to be specially to regulate the circularity of plastic wire: when circularity is greater than setting, to reduce the temperature of described extrusion die.
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 |
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| 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 |
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| CN105216326A true CN105216326A (en) | 2016-01-06 |
| CN105216326B CN105216326B (en) | 2017-11-24 |
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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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393646A (en) * | 2016-11-28 | 2017-02-15 | 中国科学院宁波材料技术与工程研究所 | High-temperature consumable wire drawing equipment for 3D printing |
| CN107139451A (en) * | 2017-06-14 | 2017-09-08 | 安徽三绿电子科技有限公司 | 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 |
| CN111703043A (en) * | 2020-06-30 | 2020-09-25 | 哈尔滨坤程科技有限公司 | Carbon fiber PLA composite wire and preparation process thereof |
| CN113500759A (en) * | 2021-07-08 | 2021-10-15 | 同光(昆山)生物科技有限公司 | Preparation device and method of high-bioceramic-content 3D printing wire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393646A (en) * | 2016-11-28 | 2017-02-15 | 中国科学院宁波材料技术与工程研究所 | High-temperature consumable wire drawing equipment for 3D printing |
| CN107139451A (en) * | 2017-06-14 | 2017-09-08 | 安徽三绿电子科技有限公司 | A kind of efficient process units of 3D printing consumptive material |
| 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 |
| CN111703043A (en) * | 2020-06-30 | 2020-09-25 | 哈尔滨坤程科技有限公司 | Carbon fiber PLA composite wire and preparation process thereof |
| 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 |
| CN113500759A (en) * | 2021-07-08 | 2021-10-15 | 同光(昆山)生物科技有限公司 | Preparation device and method of high-bioceramic-content 3D printing wire |
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|---|---|
| CN105216326B (en) | 2017-11-24 |
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