CN110193932B - Colorful 3D printing device - Google Patents

Colorful 3D printing device Download PDF

Info

Publication number
CN110193932B
CN110193932B CN201910570742.0A CN201910570742A CN110193932B CN 110193932 B CN110193932 B CN 110193932B CN 201910570742 A CN201910570742 A CN 201910570742A CN 110193932 B CN110193932 B CN 110193932B
Authority
CN
China
Prior art keywords
color
thimble
printing
roller
melt
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.)
Active
Application number
CN201910570742.0A
Other languages
Chinese (zh)
Other versions
CN110193932A (en
Inventor
陈宏波
周怡宏
韩雯雯
汪传生
杨卫民
焦冬梅
刘海超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao University of Science and Technology
Original Assignee
Qingdao University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao University of Science and Technology filed Critical Qingdao University of Science and Technology
Priority to CN201910570742.0A priority Critical patent/CN110193932B/en
Publication of CN110193932A publication Critical patent/CN110193932A/en
Application granted granted Critical
Publication of CN110193932B publication Critical patent/CN110193932B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B29C64/264—Arrangements for irradiation
    • B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • B29C64/336—Feeding of two or more materials
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)

Abstract

The invention belongs to the technical field of 3D printing equipment, and relates to a color 3D printing device, which comprises a main body structure, wherein the main body structure comprises an outer shell, a sliding rail, a lifting sliding block, a conductive receiving plate, a high-voltage static generator, a servo motor, a driving gear, a fixed shaft, a bearing, a color mixing rotating cage, a driven gear and a thimble assembly, wherein the servo motor drives the driving gear to rotate, the driving gear drives the color mixing rotating cage to rotate through meshed connection with the driven gear, the conversion of flexible ropes dipping different color raw materials is realized, the micro motor drives a driving roller to rotate, the driving roller drives the driven roller to rotate through connection of the flexible ropes, the thimble downwards extends out of the flexible ropes to form a bulge, induced charges formed by melt/solution on the bulge in a high-voltage electrostatic field are concentrated, so that the melt/solution is excited to form jet flow, the jet flow falls down to solidify or the solvent volatilizes to solidify and adhere together to form solid with a certain shape, the thimble upwards lifts, the bulge disappears, and the jet flow disappears, and 3D printing is realized.

Description

Colorful 3D printing device
Technical field:
the invention belongs to the technical field of 3D printing equipment, and particularly relates to a color 3D printing device which can realize fine and rapid printing of color products.
The background technology is as follows:
3D printing is a rapid prototyping technology, also called additive manufacturing technology, which is a technology for constructing parts by using polymer materials, metals, ceramics and other bondable materials in a layer-by-layer printing mode based on three-dimensional digital modeling, and is widely applied to the fields of construction, medicine, mechanical manufacturing, aerospace and the like. Currently, the 3D printing technology mainly includes two processes of Fused Deposition Modeling (FDM) and Stereolithography (SLA): the principle of Fused Deposition Modeling (FDM) is that the hot-melt, thermoplastic and adhesive characteristics of materials are utilized to perform the stacking modeling of printing models layer by layer, and the Fused Deposition Modeling (FDM) has the advantages of multiple materials, high strength and low cost, but the Fused Deposition Modeling (FDM) can not meet the processing requirements of products with complex structures in terms of product precision; the principle of stereo light curing forming (SLA) is to focus ultraviolet laser with specific wavelength and intensity on the surface of liquid photosensitive resin material to solidify the material from point to line and from line to surface sequentially, and then to laminate the material layer by layer to form a three-dimensional entity. The stereo light curing forming (SLA) has harsh environmental requirements, high equipment cost and high use and maintenance cost, and is limited by material strength and heat resistance.
Current 3D printing techniques are limited to a single material, can only print three-dimensional objects of one color, and cannot simultaneously present multiple colors on one object. Printing multicolor products means that the materials of the printer need to be replaced, and the printer must be stopped to replace the materials, which brings about the problem of connection precision, has lower efficiency, and cannot meet the requirement of 3D printing of high-precision multicolor products.
The electrostatic spinning technology is a process method for preparing polymer melt or solution into superfine fibers by utilizing high-voltage static electricity, has the advantages of simple equipment, easy operation, multiple applicable substance types and the like, and becomes one of the most main preparation modes of polymer continuous nanofiber materials. With development of nanotechnology, as a simple and effective novel processing technology capable of producing nanofibers, the electrostatic spinning technology plays a great role in the fields of biomedical materials, filtration and protection, catalysis, energy, photoelectricity, food engineering, cosmetics and the like.
The electrostatic spinning method can prepare continuous fibers from nanometer to micrometer, combines a 3D printing technology with the continuous fibers, realizes the rapid preparation of high-precision products of various color materials, and plays a great positive role in the fields of biomedical materials, food engineering, cosmetics, archaeology and the like. For example, a fast full-color 3D printer disclosed in chinese patent 201821602408.6 includes a housing and a control platform disposed on the housing, one end of the housing is provided with a feed box, a quantitative feeder is disposed at a lower portion of the feed box, a spreading mechanism is disposed at a top of the housing, a printing component is disposed at one side of the spreading mechanism, the printing component includes a print head rail bracket, a photo-curing full-color inkjet print head is disposed on the print head rail bracket and can slide along the print head rail bracket, UV photo-curing lamps are disposed at two sides of a bottom of the photo-curing full-color inkjet print head, two ends of the spreading mechanism and the print head rail bracket can slide along running rails disposed at two sides of a top of the housing, a forming cylinder body is disposed in the housing and can slide along guide rails disposed at two sides of an inner bottom of the housing, a powder bed at an upper end of the forming cylinder is disposed at a top of the forming cylinder body, and a discharge port and a sand cleaning device is disposed at an outer side of the discharge port of the housing; the color 3D printer for uniform color mixing printing disclosed in China patent 201810177124.5 comprises a support main body, a feeding control device arranged at the upper end of the support main body and used for controlling the flow direction of raw materials, and a rotating main body arranged at the lower end of the support main body and capable of rotating around the axis of the rotating main body, wherein a plurality of extrusion heads which are uniformly arranged at intervals along the circumferential direction of the rotating main body are arranged at the lower end of the rotating main body, interfaces which are the same in number as the extrusion heads and are communicated with the extrusion heads in a one-to-one correspondence manner are arranged on the contact end surface of the rotating seat main body and the support main body, a plurality of single-color melt channels for receiving the raw materials provided by the feeding control device are arranged on the support main body, and one interface is communicated with one of the single-color melt channels; the feeding control device is arranged to be capable of switching between a color mixing guiding state and a color mixing guiding state, and when the feeding control device is in the color mixing guiding state, the feeding control device receives a plurality of solid raw materials and can guide the plurality of solid raw materials to sequentially penetrate into corresponding monochromatic melt channels; when the feeding control device is in a mixed color guiding state, the feeding control device receives a plurality of solid raw materials, guides the solid raw materials into the mixing mechanism and generates molten state mixture, and guides the molten state mixture to enter one of the single-color melt channels; the feeding control device comprises a frame body, wherein a material conveying hole for guiding solid raw materials to enter is formed in the frame body, a guide groove for guiding the frame body to move along the horizontal direction is formed in the upper end of the support main body, single-color melt flow channels and mixed color feeding channels which are positioned in the guide groove and are arranged at intervals along the guide direction of the guide groove are formed in the support main body, the frame body is connected to the guide switching mechanism, and the power output by the guide switching mechanism can realize the feeding control device to move along the guide direction of the guide groove and switch between a cross color guide state and a mixed color guide state; in the cross color guiding state, the material conveying holes guide the solid raw materials to enter the monochromatic melt flow channel; in the mixed color guiding state, the material conveying holes guide the solid raw materials to enter the mixed color feeding channel; the discharging end of the color mixing feeding channel is connected with the mixing mechanism; the feeding control device further comprises a tightening mechanism arranged on the frame body, the tightening mechanism corresponds to the solid raw material and is used for pushing the solid raw material to feed, the tightening mechanism comprises a deflector rod and a clamping wheel body, the deflector rod is of an L-shaped structure and consists of a long rod section and a short rod section which are perpendicular to each other, a rotating shaft is arranged at the vertical connection position of the long rod section and the short rod section, the deflector rod can deflect around the rotating shaft, the central axis direction of the rotating shaft is perpendicular to the feeding direction of the solid raw material, the free end part of the short rod section is movably provided with a clamping wheel body capable of rotating around the axis of the short rod section, the clamping wheel body corresponds to the power wheel body and forms a clamping area between the clamping wheel body and the power wheel body, and the solid raw material is introduced into the feeding control device and passes through the clamping area between the clamping wheel body and the power wheel body; the tightening mechanism also comprises an elastic reset piece which pushes the deflector rod to deflect and realize that the clamping wheel body approaches towards the direction of the power wheel body; and printing color substitutes of human organs and identification of functions of different areas of a human engineering tissue scaffold in the medical field, color printing products in the cosmetic field, color restoration of cultural relics in the archaeological field and the like. Therefore, there is an urgent need to develop a color 3D printing technology device to meet the color fine printing requirement in the 3D printing field.
The invention comprises the following steps:
the invention aims to overcome the defects in the prior art, and develops a color 3D printing device, which can realize the accurate deposition of single jet flows of different colors on a two-dimensional plane so as to prepare a three-dimensional color product with adjustable fineness.
In order to achieve the above purpose, the main body structure of the color 3D printing device provided by the invention comprises an outer shell, a sliding rail, a lifting sliding block, a conductive receiving plate, a high-voltage electrostatic generator, a servo motor, a driving gear, a fixed shaft, a bearing, a color mixing rotating cage, a driven gear and a thimble assembly; the outer shell is formed by enclosing an upper wall plate, a lower wall plate, a left wall plate, a right wall plate, a front door plate and a rear wall plate, a sliding rail is arranged on the upper surface of the lower wall plate, a lifting sliding block is arranged in the sliding rail, a conductive receiving plate is electrically connected with a high-voltage electrostatic generator, a servo motor is arranged on the right wall plate and is coaxially connected with a driving gear in a plug-in mode, a fixed shaft is arranged between the left wall plate and the right wall plate, bearings are sleeved at the left end and the right end of the fixed shaft, a color mixing rotating cage is respectively connected with the two bearings and then sleeved on the fixed shaft, a driven gear is sleeved at the periphery of the right side of the color mixing rotating cage, the driving gear is in meshed connection with the driven gear, and a thimble assembly is sleeved between the two bearings on the fixed shaft; the top surface of the lifting sliding block is connected with the conductive receiving plate in a plug-in mode.
The main structure of the color mixing rotating cage comprises a left color mixing roller, a right color mixing roller, a connecting rod, a miniature motor, a driving roller, a mounting platform, a driven roller, a left charging basket, a right charging basket and a flexible rope; the left color mixing roller and the right color mixing roller of the regular hexagon structure are connected and fixed into a whole through six connecting rods which are arranged at equal intervals, six micro motors are arranged on the left side surface of the left color mixing roller at equal angles by taking the center of the left color mixing roller as the center of a circle, the micro motors are coaxially connected with the driving roller in a plug-in mode, six mounting platforms are arranged on the right side surface of the right color mixing roller at equal angles by taking the center of the right color mixing roller as the center of a circle, driven rollers are arranged on the mounting platforms, six left charging barrels are arranged on the left color mixing roller at equal intervals, six right charging barrels are arranged on the right color mixing roller at equal intervals, and flexible ropes encircle the periphery of the driving roller and the driven rollers and penetrate through the left charging barrels and the right charging barrels; the left charging bucket and the right charging bucket are arranged in a mirror image mode, and the main structures are the same and comprise a shell, a charging hole, a heating plate, a guide wheel, a left extrusion roller and a right extrusion roller; the top of the shell is provided with a feeding hole and a discharging hole, the left side and the right side of the outside of the shell are provided with heating plates, and a guide wheel, a left extrusion roller and a right extrusion roller which are arranged in pairs are arranged at the position where the flexible rope in the shell enters and exits the shell; the main body structure of the thimble assembly comprises a thimble moving slide block, a thimble and a pulley; the thimble moving slide block is sleeved on the fixed shaft, the lower end of the thimble moving slide block is connected with the thimble in a plug-in mode, the lower end of the thimble is provided with a pulley, and the thimble is grounded.
The shell body has insulation and heat preservation functions; the servo motor can rotate forward and backward; the color mixing rotating cage has the function of adjusting the color of the current printing melt/solution; the flexible rope is elastic; the left charging basket and the right charging basket have the integrated functions of heating, coating and recycling feed liquid; the heating plate is a stainless steel mica heating plate; the thimble moving slide block can transversely move on the fixed shaft, and the thimble can longitudinally move in the thimble moving slide block.
When the color 3D printing device is used, firstly, the device is connected with a computer, the computer converts a three-dimensional model of a product into a multi-layer two-dimensional plane, then the two-dimensional plane is converted into points, color coordinates corresponding to the points are converted into electric signals and transmitted to a conductive receiving plate, a servo motor, a thimble moving slide block and a thimble, polymer materials or solution with set colors are respectively added into a left charging bucket, a high-voltage electrostatic generator is started, the servo motor operates, a color mixing rotating cage is driven to rotate to the required set colors through a driving gear and a driven gear, the thimble descends and lifts, the generation and disappearance of jet flow at a bulge position of the flexible rope ejected by the thimble are realized, the jet flow is controlled to fall, cool, solidify or volatilize, solidify and bond the jet flow together, one-side molding is realized through a set path distribution, and after one-side molding is finished, the conductive receiving plate moves downwards and prints layer by layer, and finally the whole product is molded; when printing, the polymer material or solution with set color is thrown into the left charging basket, the heating plate heats and melts the polymer material into melt and heats and preserves the temperature of the melt or solution, the servo motor drives the driving gear 8 to rotate, the driving gear drives the color mixing rotating cage to rotate to the set position through the driven gear, the left charging basket and the right charging basket with to deposit color are positioned at the bottom horizontal position, the micro motor drives the driving roller to rotate, the driving roller drives the driven roller to rotate through the connection of the flexible rope, the flexible rope penetrates through the left charging basket to dip the melt/solution, the conductive receiving plate reaches the preset position, the thimble moves to the set horizontal position through the thimble, the thimble moves downwards, the flexible rope is protruded by the thimble, the color melt/solution dipped by the protrusion forms jet under the action of a high-voltage electric field between the conductive receiving plate and the thimble, the jet cools and solidifies or volatilizes and solidifies the solvent, the formed solid is deposited and stuck on the conductive receiving plate, the melt/solution remained on the flexible rope is extruded and concentrated in the right charging basket under the rotating action of the left extrusion roller and the right extrusion roller after entering the right charging basket, the flexible rope is printed with other set colors in the right charging basket, the same process with the set color, the preset color printing is formed by the preset color printing point, the printing plane is realized by the preset printing plane, and the printing plane is controlled by the printing plane is formed by the set point and the printing plane; the thimble is lifted upwards, the flexible rope is restored to a straight state due to elasticity, the bulge disappears, the jet flow disappears, printing is stopped, the process is repeated for a plurality of times, and finally, a product with the set color precision requirement is obtained by printing; when the volume of the melt/solution in the right charging basket exceeds a set value, the micro motor rotates in the opposite direction, the driving roller rotates in the opposite direction, the driven roller rotates in the opposite direction under the driving of the flexible rope, the flexible rope dips the melt/solution from the right charging basket for printing, and the residual melt/solution on the flexible rope is trapped in the left charging basket; the left charging basket and the right charging basket can be respectively and independently charged.
The color 3D printing device controls the horizontal jet flow deposition position by controlling the transverse movement of the ejector pin and the front-back movement of the conductive receiving plate, performs a deposition process of a set color jet flow on a plane, realizes the deposition of different component color jet flows on a two-dimensional plane by a plurality of independent deposition processes, further realizes the integral printing of the set two-dimensional plane, and then performs layer-by-layer printing by controlling the up-down movement of the conductive receiving plate, and finally forms the whole color product; the rotation of the color mixing rotating cage is controlled to select the set flexible ropes dipped with different colors, the on-off of jet flow is realized through the lifting of the ejector pin, and the deposition position of the jet flow is controlled through the movement of the ejector pin on the flexible ropes; the protrusion of the flexible rope is adjusted to dip the melt/solution by the extending distance of the thimble, the extending distance of the thimble is long, the protrusion dips the melt/solution more, the extending distance of the thimble is short, and the protrusion dips the melt/solution less, so that the diameter of jet flow is controlled, and the purposes of fine control of local precision of products and color proportion control are achieved; the moving speed of the flexible rope is controlled by adjusting the rotating speed of the micro motor, so that the thickness of the flexible rope dipped in the melt/solution is controlled, and the integral printing precision of the product is controlled.
The number of the colors of the printed products of the color 3D printing device is selected according to the requirements, and the purpose of increasing or reducing the colors of the products is achieved by adjusting the number of corresponding micro motors, driving rollers, driven rollers, left charging barrels, right charging barrels and flexible ropes.
Compared with the prior art, the servo motor drives the driving gear to rotate, the driving gear drives the mixing rotating cage to rotate through meshed connection with the driven gear, conversion of flexible ropes dipping different color raw materials is achieved, the micro motor drives the driving roller to rotate, the driving roller drives the driven roller to rotate through connection of the flexible ropes, the moving speed of the flexible ropes is controlled through adjusting the rotating speed of the micro motor, the thickness of melt/solution dipped by the flexible ropes is determined, the ejector pins extend downwards to form protrusions on the flexible ropes, induced charges formed by the melt/solution on the protrusions in a high-voltage electrostatic field are concentrated, so that the melt/solution is excited to form jet flow, the jet flow falls down to cool and solidify or the solvent volatilizes and solidifies and is adhered together, a solid with a certain shape is formed, the ejector pins lift upwards, the protrusions disappear, the jet flow disappears, the formation of 3D printing points is achieved, jet flow deposition control in the X and Y directions is achieved through parallel movement of the ejector pins on the flexible ropes and the translation of the conductive receiving plates, deposition control in the Z directions is achieved, and color products are stacked one by one surface; the device has the advantages of simple structure, easy operation, recycling and reutilizing unprinted melt/solution, energy conservation and environmental protection, and accurate control of the height of a specific longitudinal sectioning plane and the position before and after transverse sectioning of jet deposition, thereby realizing 3D printing with controllable color precision.
Description of the drawings:
fig. 1 is a schematic diagram of the principle of the main structure of the present invention.
Fig. 2 is a front view of the body structure of the present invention.
Fig. 3 is a schematic diagram of the main structure of the color mixing rotating cage according to the invention.
Fig. 4 is a schematic layout of a flexible cord according to the present invention.
Fig. 5 is a schematic diagram of the main structure of the left barrel according to the present invention.
Fig. 6 is a schematic main body structure diagram of a right barrel according to the present invention.
FIG. 7 is a schematic diagram of the principle of the body structure of the thimble assembly according to the present invention.
Fig. 8 is a schematic diagram of the working principle of the thimble according to the present invention.
The specific embodiment is as follows:
the invention will now be described in further detail by way of examples with reference to the accompanying drawings.
Example 1:
the main body structure of the color 3D printing device comprises an outer shell 1, a sliding rail 2, a lifting sliding block 3, a conductive receiving plate 4, a high-voltage electrostatic generator 5, a servo motor 6, a driving gear 7, a fixed shaft 8, a bearing 9, a color mixing rotating cage 10, a driven gear 11 and a thimble assembly 12; the shell body 1 is enclosed by upper wallboard, lower wallboard, left wallboard, right wallboard, preceding door plant and back wallboard and closes and constitute, be provided with slide rail 2 on the upper surface of lower wallboard, be provided with lift slider 3 in the slide rail 2, the top surface of lift slider 3 is connected with electrically conductive take-up sheet 4 grafting, electrically conductive take-up sheet 4 is connected with high-voltage electrostatic generator 5 electricity, be provided with servo motor 6 on the right wallboard, servo motor 6 is connected with the coaxial grafting of driving gear 7, be provided with fixed axle 8 between left wallboard and the right wallboard, both ends all cover are equipped with bearing 9 about fixed axle 8, the cover is established on fixed axle 8 after the mixing of colors rotating cage 10 is connected with two bearing 9 respectively, the peripheral cover in right side of mixing of rotating cage 10 is equipped with driven gear 11, driving gear 7 and driven gear 11 meshing are connected, still the cover is equipped with thimble subassembly 12 between two bearing 9 on the fixed axle 8.
The main structure of the color mixing rotating cage 10 related to the embodiment comprises a left color mixing roller 101, a right color mixing roller 102, a connecting rod 103, a micro motor 104, a driving roller 105, a mounting platform 106, a driven roller 107, a left charging bucket 108, a right charging bucket 109 and a flexible rope 110; the left color mixing roller 101 and the right color mixing roller 102 of the regular hexagon structure are connected and fixed into a whole through six connecting rods 103 which are arranged at equal intervals, six micro motors 104 are arranged on the left side surface of the left color mixing roller 101 at equal angles by taking the center of the left color mixing roller 101 as a circle center, the micro motors 104 are coaxially connected with the driving roller 105 in a plug-in mode, six mounting platforms 106 are arranged on the right side surface of the right color mixing roller 102 at equal angles by taking the center of the right color mixing roller 102 as a circle center, driven rollers 107 are arranged on the mounting platforms 106, six left charging barrels 108 are arranged on the left color mixing roller 101 at equal intervals, six right charging barrels 109 are arranged on the right color mixing roller 102 at equal intervals, and flexible ropes 110 encircle the periphery of the driving roller 105 and the driven rollers 107 and penetrate through the left charging barrels 108 and the right charging barrels 109.
The left barrel 108 and the right barrel 109 related to the embodiment are arranged in a mirror image mode, and have the same main structure, and each main structure comprises a shell 1081, a feeding and discharging hole 1082, a heating plate 1083, a guide wheel 1084, a left extrusion roller 1085 and a right extrusion roller 1086; the top of the casing 1081 is provided with a feeding and discharging hole 1082, the left and right sides of the outside of the casing 1081 are provided with heating plates 1083, and a guiding wheel 1084, a left squeezing roller 1085 and a right squeezing roller 1086 which are arranged in pairs are arranged at the position where the flexible rope 110 in the casing 1081 passes in and out of the casing 1081.
The main structure of the thimble assembly 12 according to the present embodiment includes a thimble moving slider 121, a thimble 122, and a pulley 123; the thimble moving slide block 121 is sleeved on the fixed shaft 8, the lower end of the thimble moving slide block 121 is connected with the thimble 122 in a plug-in mode, a pulley 123 is arranged at the lower end of the thimble 122, and the thimble 122 is grounded.
The outer case 1 according to the present embodiment has insulation and heat preservation functions; the servo motor 6 can rotate positively and negatively; the toning cage 10 has the effect of adjusting the color of the current printing melt/solution; the flexible cord 110 is a cord having elasticity; the left charging basket 108 and the right charging basket 109 have the integrated functions of heating, coating and recycling feed liquid; the heating plate 1083 is a stainless steel mica heating plate; the ejector pin moving slider 121 is capable of moving laterally on the fixed shaft 8, and the ejector pin 122 is capable of moving longitudinally in the ejector pin moving slider 121.
When the color 3D printing device according to the embodiment is used, firstly, the device is connected with a computer, the computer converts a three-dimensional model of a product into a multi-layer two-dimensional plane, then the two-dimensional plane is converted into points, color coordinates corresponding to the points are converted into electric signals and transmitted to the conductive receiving plate 4, the servo motor 6, the thimble moving slide block 121 and the thimble 122, polymer materials or solution with set colors are respectively added into the left charging bucket 108, the high-voltage electrostatic generator 5 is started, the servo motor 6 operates and drives the color mixing rotating cage 10 to rotate to the required set colors through the driving gear 7 and the driven gear 11, the thimble 122 descends and lifts, the generation and disappearance of jet flow at the protruding part of the flexible rope 110, which is ejected by the thimble 122, are controlled, the jet flow is cooled, solidified or solvent volatilizes, solidified and bonded together, one-side forming is realized, after one-side forming is finished, the conductive receiving plate 4 is moved downwards, and the whole product is printed layer by layer, and finally formed.
When the color 3D printing device according to this embodiment prints, a polymer material or a solution with a set color is thrown into the left barrel 108, the heating plate 1083 heats and melts the polymer material into a melt and heats and insulates the melt or the solution, the servo motor 6 drives the driving gear 8 to rotate, the driving gear 7 drives the color mixing rotating cage 10 to rotate to a set position through the driven gear 11, the left barrel 108 and the right barrel 109 which are to deposit the color are positioned at a bottom horizontal position, the micro motor 104 drives the driving roller 105 to rotate, the driving roller 105 drives the driven roller 107 to rotate through the connection of the flexible rope 110, the flexible rope 110 dips the melt/solution through the left barrel 108, the conductive receiving plate 4 reaches a preset position, the thimble 122 moves to a set transverse position through the thimble moving sliding block 121, the thimble 122 moves downwards, the flexible rope 110 is ejected out of the bulge by the ejector pin 122, the color melt/solution dipped by the bulge forms jet flow under the action of a high-voltage electric field between the conductive receiving plate 4 and the ejector pin 122, the jet flow is cooled, solidified or solvent volatilized, deposited and adhered on the formed solid on the conductive receiving plate 4, in the continuous running process of the flexible rope 110, the residual melt/solution on the flexible rope 110 is extruded and concentrated in the right charging bucket 109 under the rotation action of the left extrusion roller 1085 and the right extrusion roller 1086 after entering the right charging bucket 109, the printing process of other set colors is the same as the process, the combination of color jet flow deposition of a plurality of dots with set colors is formed, the purpose of printing a preset plane is realized, and then the conductive receiving plate 4 is controlled to move downwards from top to bottom by the lifting slide block 3 for printing surface by surface; the thimble 122 is lifted upwards, the flexible rope 110 is restored to a straight state due to elasticity, the bulge disappears, the jet flow disappears, printing is stopped, the process is repeated for a plurality of times, and finally, the product with the set color precision requirement is obtained by printing; when the volume of the melt/solution in the right barrel 109 exceeds a set value, the micro motor 104 rotates in the opposite direction, the driving roller 105 rotates in the opposite direction, the driven roller 107 rotates in the opposite direction under the driving of the flexible rope 110, the flexible rope 110 dips the melt/solution from the right barrel 109 for printing, and the residual melt/solution on the flexible rope 110 is trapped in the left barrel 108; the left barrel 108 and the right barrel 109 can be fed separately.
The color 3D printing device according to the embodiment controls the horizontal jet deposition position by controlling the lateral movement of the ejector pin 122 and the front-back movement of the conductive receiving plate 4, performs the deposition process of one set color jet on the plane, realizes the deposition of different component color jets on the two-dimensional plane by multiple independent deposition processes, further realizes the integral printing of the set two-dimensional plane, and finally forms the whole color product by controlling the up-down movement of the conductive receiving plate 4, printing layer by layer.
The color 3D printing device according to the present embodiment selects the set flexible ropes 110 dipped with different colors by controlling the rotation of the color mixing rotating cage 10, realizes the on-off of the jet flow by lifting the ejector pins 122, and controls the deposition position of the jet flow by moving the ejector pins 122 on the flexible ropes 110.
The color 3D printing device according to the embodiment adjusts the quantity of the melt/solution dipped by the protrusion of the flexible rope 110 through the extending distance of the thimble 122, the extending distance of the thimble 122 is long, the protrusion dips more melt/solution, the extending distance of the thimble 122 is short, the protrusion dips less melt/solution, thereby controlling the diameter of jet flow and achieving the purposes of fine control of local precision of products and color proportion control.
The color 3D printing apparatus according to the present embodiment controls the moving speed of the flexible rope 110 by adjusting the rotating speed of the micro motor 104, so as to control the thickness of the flexible rope 110 dipped with the melt/solution, thereby controlling the overall printing accuracy of the product.

Claims (8)

1. The main structure of the color 3D printing device comprises an outer shell, a sliding rail, a lifting sliding block, a conductive receiving plate, a high-voltage static generator, a servo motor, a driving gear, a fixed shaft, a bearing, a color mixing rotating cage, a driven gear and a thimble assembly; the outer shell is formed by enclosing an upper wall plate, a lower wall plate, a left wall plate, a right wall plate, a front door plate and a rear wall plate, a sliding rail is arranged on the upper surface of the lower wall plate, a lifting sliding block is arranged in the sliding rail, a conductive receiving plate is electrically connected with a high-voltage electrostatic generator, a servo motor is arranged on the right wall plate, the servo motor is coaxially connected with a driving gear in a plug-in mode, a fixed shaft is arranged between the left wall plate and the right wall plate, bearings are sleeved at the left end and the right end of the fixed shaft, a color mixing rotating cage is respectively connected with the two bearings and then sleeved on the fixed shaft, a driven gear is sleeved at the periphery of the right side of the color mixing rotating cage, the driving gear is in meshed connection with the driven gear, and a thimble assembly is sleeved between the two bearings on the fixed shaft, and the left charging barrel and the right charging barrel are arranged in a mirror image mode, and the outer shell is characterized in that the main body structure is identical and comprises a shell, a charging hole, a heating plate, a guide wheel, a left extrusion roller and a right extrusion roller; the top of the shell is provided with a feeding and discharging hole, the left side and the right side of the outside of the shell are provided with heating plates, a flexible rope in the shell is provided with a guide wheel, a left extrusion roller and a right extrusion roller which are arranged in pairs, and the main structure of the color mixing rotating cage comprises a left color mixing roller, a right color mixing roller, a connecting rod, a miniature motor, a driving roller, a mounting platform, a driven roller, a left charging basket, a right charging basket and a flexible rope; the left color mixing roller and the right color mixing roller of the regular hexagon structure are connected and fixed into a whole through six connecting rods which are arranged at equal intervals, six micro motors are arranged on the left side face of the left color mixing roller at equal angles by taking the center of the left color mixing roller as a circle center, the micro motors are coaxially connected with the driving roller in a plug-in mode, six mounting platforms are arranged on the right side face of the right color mixing roller at equal angles by taking the center of the right color mixing roller as a circle center, driven rollers are arranged on the mounting platforms, six left charging barrels are arranged on the left color mixing roller at equal intervals, six right charging barrels are arranged on the right color mixing roller at equal intervals, and flexible ropes encircle the periphery of the driving roller and the driven rollers and penetrate through the left charging barrels and the right charging barrels.
2. The color 3D printing apparatus of claim 1 wherein the top surface of the lifting slider is in plug-in connection with the conductive receiving plate.
3. The color 3D printing apparatus of claim 2 wherein the body structure of the ejector pin assembly comprises an ejector pin moving slide, an ejector pin and a pulley; the thimble moving slide block is sleeved on the fixed shaft, the lower end of the thimble moving slide block is connected with the thimble in a plug-in mode, the lower end of the thimble is provided with a pulley, and the thimble is grounded.
4. A color 3D printing apparatus according to claim 3 wherein the outer housing has insulation and heat preservation functions; the servo motor can rotate forward and backward; the color mixing rotating cage has the function of adjusting the color of the current printing melt/solution; the flexible rope is elastic; the left charging basket and the right charging basket have the integrated functions of heating, coating and recycling feed liquid; the heating plate is a stainless steel mica heating plate; the thimble moving slide block can transversely move on the fixed shaft, and the thimble can longitudinally move in the thimble moving slide block.
5. The color 3D printing device according to claim 3, wherein when in use, the device is connected with a computer, the computer converts a three-dimensional model of a product into a multi-layer two-dimensional plane, then converts the two-dimensional plane into points, converts color coordinates corresponding to the points into electric signals, transmits the electric signals to a conductive receiving plate, a servo motor, a thimble moving slide block and a thimble, respectively adds polymer materials or solution with set colors into a left charging bucket, starts a high-voltage electrostatic generator, runs the servo motor, drives a color mixing rotating cage to rotate to a required set color through a driving gear and a driven gear, lowers and lifts the thimble, realizes the generation and disappearance of jet flow at a bulge position of the flexible rope ejected by the thimble, controls the jet flow deposition position, drops, cools, solidifies or volatilizes and solidifies a solvent, is adhered together, realizes one-side molding through a set path distribution, prints layer by layer after one-side molding, and finally molds the whole product.
6. The color 3D printing device according to claim 3, wherein during printing, polymer materials or solution with set colors are thrown into a left charging barrel, a heating plate heats and melts the polymer materials into melt and heats and insulates the melt or the solution, a servo motor drives a driving gear to rotate, the driving gear drives a color mixing rotating cage to rotate to a set position through a driven gear, the left charging barrel and the right charging barrel which are to deposit colors are positioned at the bottom horizontal position, a micro motor drives a driving roller to rotate, the driving roller drives a driven roller to rotate through connection of a flexible rope, the flexible rope dips into the melt/solution through the left charging barrel, a conductive receiving plate reaches a preset position, a thimble moves to a set transverse position through a thimble moving sliding block, the thimble moves downwards, the flexible rope is ejected out of the protrusion by the thimble, the color melt/solution which is dipped by the protrusion forms jet under the action of a high-voltage electric field between the conductive receiving plate and the thimble, the jet is cooled and solidified or solvent volatilizes and solidified, the melt/solution remained on the flexible rope is deposited and adhered on a formed solid on the conductive receiving plate, in the continuous running process of the flexible rope, after the left charging barrel and the right charging barrel are extruded under the rotating action of the left extrusion roller and the right charging barrel, the left extrusion roller and the right charging barrel are in the same as the set color, the preset color is formed by the set printing plane, and the other printing plane is formed by the set printing plane, and the printing purpose is realized; the thimble is lifted upwards, the flexible rope is restored to a straight state due to elasticity, the bulge disappears, the jet flow disappears, printing is stopped, the process is repeated for a plurality of times, and finally, a product with the set color precision requirement is obtained by printing; when the volume of the melt/solution in the right charging basket exceeds a set value, the micro motor rotates in the opposite direction, the driving roller rotates in the opposite direction, the driven roller rotates in the opposite direction under the driving of the flexible rope, the flexible rope dips the melt/solution from the right charging basket for printing, and the residual melt/solution on the flexible rope is trapped in the left charging basket; the left charging basket and the right charging basket can be respectively and independently charged.
7. The color 3D printing device according to claim 3, wherein the horizontal jet deposition position is controlled by controlling the transverse movement of the ejector pin and the forward and backward movement of the conductive receiving plate, the deposition process of one set color jet on the plane is performed, the deposition of different component color jets on the two-dimensional plane is realized through a plurality of independent deposition processes, the integral printing of the set two-dimensional plane is further realized, the up and down movement of the conductive receiving plate is controlled, the layer by layer printing is performed, and finally the whole color product is formed; the rotation of the color mixing rotating cage is controlled to select the set flexible ropes dipped with different colors, the on-off of jet flow is realized through the lifting of the ejector pin, and the deposition position of the jet flow is controlled through the movement of the ejector pin on the flexible ropes; the protrusion of the flexible rope is adjusted to dip the melt/solution by the extending distance of the thimble, the extending distance of the thimble is long, the protrusion dips the melt/solution more, the extending distance of the thimble is short, and the protrusion dips the melt/solution less, so that the diameter of jet flow is controlled, and the purposes of fine control of local precision of products and color proportion control are achieved; the moving speed of the flexible rope is controlled by adjusting the rotating speed of the micro motor, so that the thickness of the flexible rope dipped in the melt/solution is controlled, and the integral printing precision of the product is controlled.
8. A color 3D printing apparatus according to claim 3 wherein the number of colors of the printed product is selected according to the need by adjusting the number of corresponding micro-motors, driving rollers, driven rollers, left barrel, right barrel and flexible cords to achieve the purpose of increasing or decreasing the color of the product.
CN201910570742.0A 2019-06-28 2019-06-28 Colorful 3D printing device Active CN110193932B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910570742.0A CN110193932B (en) 2019-06-28 2019-06-28 Colorful 3D printing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910570742.0A CN110193932B (en) 2019-06-28 2019-06-28 Colorful 3D printing device

Publications (2)

Publication Number Publication Date
CN110193932A CN110193932A (en) 2019-09-03
CN110193932B true CN110193932B (en) 2023-12-29

Family

ID=67755252

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910570742.0A Active CN110193932B (en) 2019-06-28 2019-06-28 Colorful 3D printing device

Country Status (1)

Country Link
CN (1) CN110193932B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104401007A (en) * 2014-10-15 2015-03-11 合肥海闻自动化设备有限公司 Three-dimensional color inkjet additive printer
CN104708822A (en) * 2015-02-13 2015-06-17 济南爱华达新材料有限公司 Novel multifunctional numerical control 3D printing equipment and using method
CN206614795U (en) * 2017-02-23 2017-11-07 四川锐讯网络科技有限公司 A kind of 3D printer
CN107538744A (en) * 2017-08-28 2018-01-05 六安永贞匠道机电科技有限公司 The colour contamination and batch mixing Method of printing of colored 3D printer
KR20190006051A (en) * 2019-01-08 2019-01-16 전남대학교산학협력단 Multi-axis three dimensional printer having exchangeable extruder-integrated printer head
CN109304465A (en) * 2018-10-30 2019-02-05 吴天宋 The hammering intensifying device of workpiece during a kind of metal increasing material manufacturing
CN210132763U (en) * 2019-06-28 2020-03-10 青岛科技大学 Color 3D printing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104401007A (en) * 2014-10-15 2015-03-11 合肥海闻自动化设备有限公司 Three-dimensional color inkjet additive printer
CN104708822A (en) * 2015-02-13 2015-06-17 济南爱华达新材料有限公司 Novel multifunctional numerical control 3D printing equipment and using method
CN206614795U (en) * 2017-02-23 2017-11-07 四川锐讯网络科技有限公司 A kind of 3D printer
CN107538744A (en) * 2017-08-28 2018-01-05 六安永贞匠道机电科技有限公司 The colour contamination and batch mixing Method of printing of colored 3D printer
CN109304465A (en) * 2018-10-30 2019-02-05 吴天宋 The hammering intensifying device of workpiece during a kind of metal increasing material manufacturing
KR20190006051A (en) * 2019-01-08 2019-01-16 전남대학교산학협력단 Multi-axis three dimensional printer having exchangeable extruder-integrated printer head
CN210132763U (en) * 2019-06-28 2020-03-10 青岛科技大学 Color 3D printing device

Also Published As

Publication number Publication date
CN110193932A (en) 2019-09-03

Similar Documents

Publication Publication Date Title
CN105643936A (en) Three-dimensional full-color printer
CN205310839U (en) Full -color 3D printer
KR101641709B1 (en) multi color 3D printer
KR20180099652A (en) Multilayer processing apparatus, system, and method
CN103568322A (en) Spray coating type light-curing three-dimensional printer
CN109466061B (en) Multi-material 3D printing equipment based on electro-hydraulic power coupling jet printing
CN104786496A (en) Inkjet type hot-melt extrusion full-color 3D (3-dimentional) printer
CN107009614B (en) The Method of printing of a kind of 3D product and for the 3D printer in this method
CN106975750A (en) A kind of lf deposition modeling device and its operation method
CN105172136A (en) Method for carrying out rapid printing through color three-dimensional printing device
CN211762249U (en) Multi-material 3D printing equipment
CN107215103B (en) A kind of 3D rendering production method and the 3D rendering printer based on the method
CN106564183A (en) 3D printing device capable of realizing high-voltage electrostatic driving
CN108688148A (en) A kind of 3D printing device and Method of printing based on Static Spinning principle
CN106541570B (en) A kind of rapid molding device of inside and outside composite construction product
CN106238256A (en) Automatic ink-jet toning system and painting methods for 3D printer model post processing
CN107263863A (en) DLP three-dimensional printers and its Method of printing
CN108527846A (en) Independent double nozzle 3D printers
CN110193932B (en) Colorful 3D printing device
CN210132763U (en) Color 3D printing device
CN110181809B (en) Rapid 3D printing device for surface forming based on electrostatic spinning method
CN106313565A (en) Multifunctional composite printing device
CN212857633U (en) 3D sand mold printer
CN206689426U (en) A kind of lf deposition modeling device
CN210126284U (en) Quick 3D printing device of face shaping based on electrostatic spinning method

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
GR01 Patent grant
GR01 Patent grant