阅读说明：本技术 一种混色3d打印线材的制备方法 (Preparation method of color-mixed 3D printing wire ) 是由 郑兰斌 宗泽 李思文 吕晨 吴志华 艾晓蕾 孙文明 唐思婷 吴贫 卞晨 桂鑫 于 2020-11-20 设计创作，主要内容包括：本发明公开了一种混色3D打印线材的制备方法,按照重量份数,混色打印线材的原材料包括高聚物85-90份、填充剂0-8份、色母或色粉2-5份、增韧剂0-3份与润滑剂0-3份；打印线材的原材料纯料包括高聚物85-90份、填充剂0-8份、增韧剂0-3份、润滑剂0-3份；本发明公开了打印技术中常规打印耗材的成分与这些成分在需要制作不同颜色的耗材配制过程中的步骤,通过在制备过程中控制色母等颜料的添加方式与在材料调配的过程中对原材料纯料的添加量记性控制防止发生颜色兼容等问题,从而获得颜色多样且观感鲜明的打印用线材；在线材加工挤出的过程中添加冷却步骤,并在冷却后对线材的直径进行测定,从而避免因挤出机控制问题与冷却问题影响影响线材的成型问题。(The invention discloses a preparation method of a mixed color 3D printing wire rod, wherein the raw materials of the mixed color printing wire rod comprise, by weight, 85-90 parts of a high polymer, 0-8 parts of a filler, 2-5 parts of a color master or a toner, 0-3 parts of a toughening agent and 0-3 parts of a lubricant; the raw material pure material of the printing wire comprises 85-90 parts of high polymer, 0-8 parts of filler, 0-3 parts of toughening agent and 0-3 parts of lubricant; the invention discloses components of conventional printing consumables in the printing technology and steps of the components in a consumable preparation process needing to manufacture different colors, and the problems of color compatibility and the like are prevented by controlling the adding mode of pigments such as color master and the like in the preparation process and the adding quantity memorability control of raw material pure materials in the material preparation process, so that printing wires with various colors and bright appearance are obtained; the cooling step is added in the wire processing and extruding process, and the diameter of the wire is measured after cooling, so that the problem that the forming of the wire is influenced by the control problem and the cooling problem of the extruder is solved.)

1. A preparation method of a color-mixed 3D printing wire is characterized by comprising the following steps: the raw materials of the mixed color printing wire comprise, by weight, 85-90 parts of high polymer, 0-8 parts of filler, 2-5 parts of color master or toner, 0-3 parts of toughening agent and 0-3 parts of lubricant; the raw material pure material of the printing wire comprises 85-90 parts of high polymer, 0-8 parts of filler, 0-3 parts of toughening agent and 0-3 parts of lubricant;

the preparation of the color-mixed 3D printing wire rod comprises the following steps:

s1, weighing and preparing the components of the formula according to the weight components in the formula, preparing at least two different color masterbatches and toner, and preparing a pure printing wire raw material without adding the color masterbatches or the toner;

s2, modulating the color to be prepared through color master or toner, and uniformly stirring the pigment through a stirring device to ensure that the color is uniformly distributed to obtain a mixed color pigment;

s3, feeding the mixed color pigment and other raw materials of the mixed color printing wire rod through a 3D printing wire rod production line respectively, adding 10-15% of pure raw materials of the printing wire rod for transition, and then performing mixed extrusion through a double-screw extruder;

s4, after the wire is extruded by the double-screw extruder, the temperature of the wire is high, the wire is pulled by the tractor, and the wire is cooled by the low-temperature cooling tank and solidified and molded;

and S5, after the wire is extruded, cured and molded, infrared thermal contraction treatment is carried out, and the manufactured mixed color 3D printing wire is wound through a winding machine, so that the whole production process of the mixed color 3D printing wire is completed.

2. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: the raw materials of the mixed color printing wire comprise 85 parts of high polymer, 0 part of filler, 2 parts of color master or toner, 0 part of toughening agent and 0 part of lubricant according to parts by weight; the pure material of the printing wire comprises 85 parts of high polymer, 0 part of filler, 0 part of toughening agent and 0 part of lubricant.

3. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: according to the parts by weight, the raw materials of the mixed color printing wire comprise 90 parts of high polymer, 8 parts of filler, 5 parts of color master or toner, 3 parts of toughening agent and 3 parts of lubricant; the pure material of the printing wire comprises 90 parts of high polymer, 8 parts of filler, 3 parts of toughening agent and 3 parts of lubricant.

4. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: the raw materials of the mixed color printing wire comprise 87 parts by weight of high polymer, 4 parts by weight of filler, 4 parts by weight of color master batch or toner, 2 parts by weight of toughening agent and 2 parts by weight of lubricant; the pure material of the printing wire comprises 87 parts of high polymer, 4 parts of filler, 2 parts of toughening agent and 2 parts of lubricant.

5. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: the color of the color master batch or the color powder is at least two colors of red, orange, yellow, green, cyan, blue, purple, gray, pink, black, white and brown.

6. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: the high polymer is one or more than two of polylactic acid, ABS plastic, PA plastic, TPU plastic, PETG plastic, PC plastic or polycaprolactone;

the filler is one or two of carbon fiber, glass fiber, plant fiber, metal powder, inorganic powder and the like; the toughening agent is the same type as the high polymer or a universal type plastic toughening agent;

the lubricant is one or a mixture of more than two of stearic acid amide, oleic acid amide, erucic acid amide, zinc stearate, macromolecular composite ester of metal soap, ethylene bis-stearic acid amide, polyethylene wax and silicone lubricant.

7. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: the raw materials of the mixed color printing wire comprise functional additives, the functional additives comprise a flame-retardant auxiliary agent, a filler, a plasticizer and a stabilizer, the flame-retardant auxiliary agent is one or two of phosphate and aluminum hydroxide, and the plasticizer is a phosphate plasticizer.

8. The preparation method of the color-mixed 3D printing wire rod as claimed in claim 1, wherein the preparation method comprises the following steps: after the 3D printing wire rod is extruded by the double-screw extruder and then is cooled at low temperature, the diameter of the wire rod can be changed, after the step S4, the laser diameter measuring instrument is arranged to measure and calibrate the diameter of the wire rod, and the measurement result is used as the adjusting basis of the size of the extrusion opening of the screw extruder.

Technical Field

The invention belongs to the technical field of 3D printing, and particularly relates to a preparation method of a color-mixed 3D printing wire.

Background

The 3D printing technology is a new fast forming technology at present, and is a technology for constructing an object by using materials such as powder materials, silk materials, paste materials and the like and by a layer-by-layer printing mode on the basis of a digital model file. With the development and application of 3D printing technology, materials become one of the key factors that limit the future trend of 3D printing technology, and to some extent, the development of materials determines whether 3D printing can be applied more widely. At present, 3D printing materials mainly comprise high polymer materials, metal materials, inorganic non-metal materials, food materials and the like. The common printer used in daily life can print planar articles designed by a computer, the working principle of the 3D printer is basically the same as that of the common printer, only the printing materials are different, the printing materials of the common printer are ink and paper, the 3D printer is filled with different printing materials such as metal, ceramic, plastic, sand and the like, the printing materials are actual raw materials, after the printer is connected with the computer, the printing materials can be stacked layer by layer through computer control, and finally, a blueprint on the computer is changed into an actual object. Colloquially, a 3D printer is a device that can "print" out real 3D objects, such as printing a robot, printing a toy car, printing various models, even food, and so on. The generic name "printer" refers to the technical principle of a common printer, since the process of layered processing is very similar to inkjet printing. This printing technique is called a 3D stereoscopic printing technique.

The wide application of 3D printing in the fields of mold manufacturing, product prototype and the like replaces the traditional processing technology, and the technology gradually gets wide attention and uses in the fields of medicine, bioengineering, building, clothing aviation and the like along with the continuous expansion of the 3D printing technology. The 3D printing technology is mainly Selective Laser Sintering (SLS), stereo light curing (SLA), Fused Deposition Modeling (FDM), etc., wherein FDM is the most common and the most mature type at present, and the principle is to laminate an additive product by using a high molecular polymer in a molten state and performing extrusion molding by a nozzle. The 3D printing technology has been greatly developed in recent years in China and also has received extensive attention, but the development of the 3D printing technology is not only the manufacture of 3D printing equipment, but also the development of 3D printing materials.

The method is a technology for constructing an object by printing layer by using a bondable material such as powdered metal or plastic on the basis of a digital model file. At present, in 3D printing, consumables with single color are generally used, so that the color effect of a printed product is single, and the visual effect is relatively poor; in addition, the diameter of the wire rod may change in the wire rod extruding and cooling processes, so that the printing use of the subsequent wire rod is influenced, and therefore the preparation method of the color-mixed 3D printing wire rod is provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art, discloses the components of the conventional printing consumables in the printing technology and the steps of the components in the consumable preparation process of different colors, and prevents the problems of color compatibility and the like by controlling the adding mode of pigments such as color master and the like in the preparation process and controlling the adding quantity memorability of raw material pure materials in the material preparation process, thereby obtaining printing wires with various colors and clear impression; the method is characterized in that a cooling step is added in the wire processing and extruding process, and the diameter of the wire is measured after cooling, so that the problem that the forming of the wire is influenced by the control problem and the cooling problem of an extruder is solved, and the preparation method of the color-mixed 3D printing wire is provided.

In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a mixed color 3D printing wire rod comprises the following steps of raw materials, by weight, 85-90 parts of a high polymer, 0-8 parts of a filler, 2-5 parts of a color master or a toner, 0-3 parts of a toughening agent and 0-3 parts of a lubricant; the raw material pure material of the printing wire comprises 85-90 parts of high polymer, 0-8 parts of filler, 0-3 parts of toughening agent and 0-3 parts of lubricant;

the preparation of the color-mixed 3D printing wire rod comprises the following steps:

s1, weighing and preparing the components of the formula according to the weight components in the formula, preparing at least two different color masterbatches and toner, and preparing a pure printing wire raw material without adding the color masterbatches or the toner;

s2, modulating the color to be prepared through color master or toner, and uniformly stirring the pigment through a stirring device to ensure that the color is uniformly distributed to obtain a mixed color pigment;

s3, feeding the mixed color pigment and other raw materials of the mixed color printing wire rod through a 3D printing wire rod production line respectively, adding 10-15% of pure raw materials of the printing wire rod for transition, and then performing mixed extrusion through a double-screw extruder;

s4, after the wire is extruded by the double-screw extruder, the temperature of the wire is high, the wire is pulled by the tractor, and the wire is cooled by the low-temperature cooling tank and solidified and molded;

and S5, after the wire is extruded, cured and molded, infrared thermal contraction treatment is carried out, and the manufactured mixed color 3D printing wire is wound through a winding machine, so that the whole production process of the mixed color 3D printing wire is completed.

Preferably, the raw materials of the mixed color printing wire comprise 85 parts of high polymer, 0 part of filler, 2 parts of color master or toner, 0 part of flexibilizer and 0 part of lubricant according to the parts by weight; the pure material of the printing wire comprises 85 parts of high polymer, 0 part of filler, 0 part of toughening agent and 0 part of lubricant.

Preferably, the raw materials of the mixed color printing wire comprise 90 parts of high polymer, 8 parts of filler, 5 parts of color master or toner, 3 parts of flexibilizer and 3 parts of lubricant according to the parts by weight; the pure material of the printing wire comprises 90 parts of high polymer, 8 parts of filler, 3 parts of toughening agent and 3 parts of lubricant.

Preferably, the raw materials of the mixed-color printing wire comprise 87 parts by weight of high polymer, 4 parts by weight of filler, 4 parts by weight of color master batch or toner, 2 parts by weight of flexibilizer and 2 parts by weight of lubricant; the pure material of the printing wire comprises 87 parts of high polymer, 4 parts of filler, 2 parts of toughening agent and 2 parts of lubricant.

Preferably, the color of the color master or the color powder is at least two colors of red, orange, yellow, green, cyan, blue, purple, gray, pink, black, white and brown.

Preferably, the high polymer is one or a mixture of more than two of polylactic acid, ABS plastic, PA plastic, TPU plastic, PETG plastic, PC plastic or polycaprolactone and the like;

the filler is one or two of carbon fiber, glass fiber, plant fiber, metal powder, inorganic powder and the like; the toughening agent is the same type as the high polymer or a universal type plastic toughening agent;

the lubricant is one or a mixture of more than two of stearic acid amide, oleic acid amide, erucic acid amide, zinc stearate, macromolecular composite ester of metal soap, ethylene bis-stearic acid amide, polyethylene wax and silicone lubricant.

Preferably, the raw material of the mixed color printing wire comprises a functional additive, the functional additive comprises a flame retardant auxiliary agent, a filler, a plasticizer and a stabilizer, the flame retardant auxiliary agent is one or two of phosphate and aluminum hydroxide, and the plasticizer is a phosphate plasticizer.

Preferably, the diameter of the 3D printing wire is changed after the 3D printing wire is extruded through the twin-screw extruder and then cooled at low temperature, and after step S4, the laser diameter gauge is set to measure and calibrate the diameter of the wire, and the measurement result is used as the basis for adjusting the size of the extrusion opening of the screw extruder.

The invention has the technical effects and advantages that: compared with the prior art, the invention discloses the components of conventional printing consumables in the printing technology and the steps of the components in the consumable preparation process of different colors, and the problems of color compatibility and the like are prevented by controlling the adding mode of pigments such as color master and the like in the preparation process and controlling the adding quantity memorability of raw material pure materials in the material preparation process, so that printing wires with various colors and bright appearance are obtained; the cooling step is added in the wire processing and extruding process, and the diameter of the wire is measured after cooling, so that the problem that the forming of the wire is influenced by the control problem and the cooling problem of the extruder is solved.

Drawings

Fig. 1 is a process flow diagram of a preparation method of the color-mixed 3D printing wire of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

A preparation method of a mixed color 3D printing wire rod comprises the following steps of raw materials, by weight, 85-90 parts of a high polymer, 0-8 parts of a filler, 2-5 parts of a color master or a toner, 0-3 parts of a toughening agent and 0-3 parts of a lubricant; the raw material pure material of the printing wire comprises 85-90 parts of high polymer, 0-8 parts of filler, 0-3 parts of toughening agent and 0-3 parts of lubricant;

the preparation of the color-mixed 3D printing wire rod comprises the following steps:

s1, weighing and preparing the components of the formula according to the weight components in the formula, preparing at least two different color masterbatches and toner, and preparing a pure printing wire raw material without adding the color masterbatches or the toner;

s2, modulating the color to be prepared through color master or toner, and uniformly stirring the pigment through a stirring device to ensure that the color is uniformly distributed to obtain a mixed color pigment;

s3, feeding the mixed color pigment and other raw materials of the mixed color printing wire rod through a 3D printing wire rod production line respectively, adding 10-15% of pure raw materials of the printing wire rod for transition, and then performing mixed extrusion through a double-screw extruder; the invention discloses components of conventional printing consumables in the printing technology and steps of the components in a consumable preparation process needing to manufacture different colors, and the problems of color compatibility and the like are prevented by controlling the adding mode of pigments such as color master and the like in the preparation process and the adding quantity memorability control of raw material pure materials in the material preparation process, so that printing wires with various colors and bright appearance are obtained;

s4, after the wire is extruded by the double-screw extruder, the temperature of the wire is high, the wire is pulled by the tractor, and the wire is cooled by the low-temperature cooling tank and solidified and molded;

and S5, after the wire is extruded, cured and molded, infrared thermal contraction treatment is carried out, and the manufactured mixed color 3D printing wire is wound through a winding machine, so that the whole production process of the mixed color 3D printing wire is completed. The cooling step is added in the wire processing and extruding process, and the diameter of the wire is measured after cooling, so that the problem that the forming of the wire is influenced by the control problem and the cooling problem of the extruder is solved.

Through the measurement calibration process that adds the wire rod diameter to the size after the accessible wire rod is measured adjusts the extrusion outlet size of screw extruder and the cooling method of cooling bath, thereby obtains the wire rod that satisfies 3D printing process.

Furthermore, according to the parts by weight, the raw materials of the mixed color printing wire comprise 85 parts of high polymer, 0 part of filler, 2 parts of color master batch or toner, 0 part of flexibilizer and 0 part of lubricant; the pure material of the printing wire comprises 85 parts of high polymer, 0 part of filler, 0 part of toughening agent and 0 part of lubricant.

Furthermore, the raw materials of the mixed color printing wire comprise 90 parts by weight of high polymer, 8 parts by weight of filler, 5 parts by weight of color master batch or toner, 3 parts by weight of flexibilizer and 3 parts by weight of lubricant; the pure material of the printing wire comprises 90 parts of high polymer, 8 parts of filler, 3 parts of toughening agent and 3 parts of lubricant.

Further, according to the parts by weight, the raw materials of the mixed color printing wire comprise 87 parts of high polymer, 4 parts of filler, 4 parts of color master batch or toner, 2 parts of flexibilizer and 2 parts of lubricant; the pure material of the printing wire comprises 87 parts of high polymer, 4 parts of filler, 2 parts of toughening agent and 2 parts of lubricant.

Further, the color of the color master batch or the color powder is at least two colors of red, orange, yellow, green, cyan, blue, purple, gray, pink, black, white and brown.

Further, the high polymer is one or a mixture of more than two of polylactic acid, ABS plastic, PA plastic, TPU plastic, PETG plastic, PC plastic or polycaprolactone and the like;

the filler is one or two of carbon fiber, glass fiber, plant fiber, metal powder, inorganic powder and the like; the toughening agent is the same type as the high polymer or a universal type plastic toughening agent;

the lubricant is one or a mixture of more than two of stearic acid amide, oleic acid amide, erucic acid amide, zinc stearate, macromolecular composite ester of metal soap, ethylene bis-stearic acid amide, polyethylene wax and silicone lubricant.

Furthermore, the raw materials of the mixed-color printing wire comprise functional additives, the functional additives comprise a flame-retardant auxiliary agent, a filler, a plasticizer and a stabilizer, the flame-retardant auxiliary agent is one or two of phosphate and aluminum hydroxide, and the plasticizer is a phosphate plasticizer.

Further, the diameter of the 3D printing wire rod is changed after the wire rod is extruded by the twin-screw extruder and then cooled at low temperature, the laser diameter measuring instrument is arranged to measure and calibrate the diameter of the wire rod after the step S4, and the measurement result is used as the basis for adjusting the size of the extrusion opening of the screw extruder.

In summary, compared with the prior art, the invention discloses the components of conventional printing consumables in the printing technology and the steps of the components in the consumable preparation process of different colors, and the problems of color compatibility and the like are prevented by controlling the adding mode of pigments such as color master and the like in the preparation process and controlling the adding quantity memorability of raw material pure materials in the material preparation process, so that the printing wire with various colors and bright appearance is obtained; the cooling step is added in the wire processing and extruding process, and the diameter of the wire is measured after cooling, so that the problem that the forming of the wire is influenced by the control problem and the cooling problem of the extruder is solved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.