CN111016166A - Multi-functional 3D printer of double-end - Google Patents

Multi-functional 3D printer of double-end Download PDF

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Publication number
CN111016166A
CN111016166A CN201911306149.1A CN201911306149A CN111016166A CN 111016166 A CN111016166 A CN 111016166A CN 201911306149 A CN201911306149 A CN 201911306149A CN 111016166 A CN111016166 A CN 111016166A
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CN
China
Prior art keywords
axis
printing
printing head
synchronous belt
moving mechanism
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Pending
Application number
CN201911306149.1A
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Chinese (zh)
Inventor
杨金林
吴昊
茹李波
蔡高参
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Zhejiang Sci Tech University ZSTU
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Zhejiang Sci Tech University ZSTU
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Priority to CN201911306149.1A priority Critical patent/CN111016166A/en
Publication of CN111016166A publication Critical patent/CN111016166A/en
Pending legal-status Critical Current

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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/227—Driving means
    • B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
    • 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
    • B29C64/227—Driving means
    • B29C64/236—Driving means for motion in a direction within the plane of a layer
    • 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
    • B29C64/245—Platforms or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/295—Heating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)

Abstract

A double-head multifunctional 3D printer comprises a rack, a printing head, a printing platform, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and two extruders, wherein the printing head is arranged on the rack; the main printing head and the auxiliary printing head realize synchronous printing in the X-axis direction, the Y-axis direction and the Z-axis direction through the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism. The invention provides a double-head multifunctional 3D printer which is ingenious in structural design, high in precision, wide in forming range and provided with a high-strength aluminum alloy frame.

Description

Multi-functional 3D printer of double-end
Technical Field
The invention relates to the technical field of 3D printing, in particular to a double-head multifunctional 3D printer.
Background
The 3D printing technique is a rapid prototyping technique that builds objects by layer-by-layer printing using bondable materials such as powdered metal or plastic based on digital model files. Any personalized product is directly printed by using a digital technical material printer in a model-free state, so that the research and development period of a new product can be effectively shortened, and the success rate of research and development is improved. 1, most 3D printers on the market are single nozzles, the single-nozzle printer can only print one type of material, and the printing color is single and the efficiency is poor; 2. the double/multi-head printer is not flexible enough, the operation process is too complicated, and the problem of material rubbing easily occurs in the printing process, so that the printing precision is too low; 3. the structure of the steel plate is adopted, the whole printer frame is made by connecting the steel plates, the integral surface is poor in aesthetic property and inconvenient to process; 4. overall structure is unstable, and it is poor to print the precision, and it is not accurate to print a size, and the roughness unevenness in surface appears rocking the phenomenon and forms great influence to the periphery when printing.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the double-head multifunctional 3D printer which is ingenious in structural design, high in precision, wide in forming range and provided with the high-strength aluminum alloy frame.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a double-head multifunctional 3D printer comprises a rack, a printing head, a printing platform, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and two extruders, wherein the printing head is arranged on the rack; the bottom of the printing platform is uniformly provided with carbon fiber-silica gel heating wires, and the two extruders are arranged at the upper edge of the rack and are respectively connected with the main printing head and the auxiliary printing head through material connecting pipes;
the main printing head and the auxiliary printing head realize synchronous printing in the X-axis direction, the Y-axis direction and the Z-axis direction through the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism.
Furthermore, the Z-axis moving mechanism comprises two ball screws, four Z-axis optical axes, two L-shaped connecting pieces, a Z-axis synchronous belt and a Z-axis stepping motor, the front side and the rear side of the printing platform are respectively provided with one ball screw, each ball screw is provided with a nut seat, each nut seat is internally provided with one ball screw nut, the left side and the right side of each ball screw are respectively provided with one Z-axis optical axis, each Z-axis optical axis is provided with a linear bearing, and the front side and the rear side of the printing platform are respectively installed on the nut seat and the linear bearing on one corresponding side through one L-shaped connecting piece; the lower extreme of every ball all is equipped with a first Z axle synchronous pulley, Z axle step motor's motor shaft is equipped with second Z axle synchronous pulley, Z axle step motor passes through the motor frame and installs in the frame, still be equipped with a leading wheel in the frame, this leading wheel is located between first Z axle synchronous pulley and the second Z axle synchronous pulley, passes through Z axle synchronous belt connection between second Z axle synchronous pulley and first Z axle synchronous pulley and the leading wheel.
The Y-axis moving mechanism comprises two Y-axis transmission shafts, two Y-axis optical axes, a Y-axis synchronous belt and a Y-axis stepping motor, wherein the two Y-axis transmission shafts are respectively rotatably arranged on the frames at the front side and the rear side of the printing head, the Y-axis stepping motor is arranged on the frame, an output shaft of the Y-axis stepping motor is provided with a first Y-axis synchronous belt wheel, one end of one Y-axis transmission shaft is provided with a second Y-axis synchronous belt wheel, the first Y-axis synchronous belt wheel is connected with the second Y-axis synchronous belt wheel through the synchronous belt, the other end of one Y-axis transmission shaft is provided with a third Y-axis synchronous belt wheel, the other end of the other Y-axis transmission shaft is provided with a Y-axis idle wheel, and the third Y-; the two Y-axis optical shafts are positioned below the two Y-axis transmission shafts and are arranged on the machine frames on the left side and the right side of the printing head.
Furthermore, the X-axis moving mechanism comprises an X-axis linear guide rail, an X-axis synchronous belt and an X-axis stepping motor, the left end and the right end of the X-axis linear guide rail are respectively arranged on two Y-axis optical axes in a manner of moving back and forth through a linear bearing, and the X-axis linear guide rail is fixedly connected with the lower side of the Y-axis synchronous belt through a synchronous belt bracket;
the X-axis stepping motor is installed on the left end of the X-axis linear guide rail, an X-axis synchronous belt wheel is arranged on an output shaft of the X-axis stepping motor, an X-axis idle wheel is arranged on the right end of the X-axis linear guide rail, and the X-axis synchronous belt wheel is connected with the X-axis idle wheel through an X-axis synchronous belt.
Each printing head comprises a printing head support, a printing head body and a belt pressing plate, the printing head body is installed on the printing head support, a material inlet is formed in the top of the printing support, a pneumatic head connected with an extruder is arranged at the material inlet, a sliding block is arranged on the rear side of the printing head support, and the sliding block is installed on the X-axis linear guide rail and forms a left-right sliding pair with the X-axis linear guide rail; the belt pressing plate and the printing head support form a clamping plate structure used for clamping an X-axis synchronous belt, and a manual nut used for disengaging the belt pressing plate and the synchronous belt is further arranged on the printing head support of the auxiliary printing head.
Still further, still be equipped with the platform gusset on the bottom of print platform.
The invention has the following beneficial effects: (1) the large aluminum profile outer frame is used for fixing, the lead screw and the belt are used for transmission, and the optical axis and the linear rail are positioned, so that the structural stability and the printing precision of the equipment are improved; (2) providing a moving strategy in XYZ three directions by adopting a mode of connecting a stepping motor with a toothed belt; (3) the coordination of the main printing head and the auxiliary printing head is realized by adopting a parallel double-nozzle structure, and three modes of single-head monochrome printing, double-head monochrome printing and double-head monochrome printing are switched randomly; (4) the maximum molding range of 400 × 400mm makes the composite material suitable for designers, engineers, educators and other professionals, and can be applied to various fields such as toy models, education industry, art design, assembly prototype, tool fixtures, building models and the like.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
Fig. 2 is a side view of the present invention, which includes the main portions of the Z-axis moving mechanism and the Y-axis moving mechanism.
Fig. 3 is a bottom view of the present invention including a portion of the Z-axis moving mechanism.
Fig. 4 is an upper view of the present invention, including the X-axis moving mechanism and the main portions of the main and sub print heads.
FIG. 5 is a partial view of the present invention including portions of an extruder and a printhead.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, a double-head multifunctional 3D printer includes a frame 1, a printing head mounted on the frame 1, a printing platform 5, an X-axis moving mechanism 2 for moving the printing head along an X-axis direction, a Y-axis moving mechanism 3 for moving the printing head along a Y-axis direction, a Z-axis moving mechanism 4 for moving the printing platform along a Z-axis direction, and two extruders 6, where the two printing heads are respectively a main printing head 8 and an auxiliary printing head 7, the auxiliary printing head 7 has the same structure as the main printing head 8, the two printing heads are both mounted on the X-axis moving mechanism, the X-axis moving mechanism is mounted on the Y-axis moving mechanism, and the printing platform 5 is located below the printing head and mounted on the Z-axis moving mechanism; the bottom of the printing platform 5 is uniformly distributed with carbon fiber-silica gel heating wires, and the two extruders are arranged at the upper edge of the frame and are respectively connected with the main printing head 8 and the auxiliary printing head 7 through material connecting pipes;
the main printing head 8 and the auxiliary printing head 7 realize synchronous printing in the X-axis direction, the Y-axis direction and the Z-axis direction through an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism.
The frame comprises 3030 aluminum profiles 9, a bottom plate 41 and an aluminum profile pressing plate 12, the whole frame of the frame is surrounded by 3030 aluminum profiles 9, the bottom plate 41 is arranged at the bottom of the frame, the aluminum profile pressing plate 12 is arranged on the outer side of a corner, 3030 corner connectors 10 are arranged on the inner side of the upper side corner, and 3060 corner connectors 11 are arranged on the inner side of the lower side corner.
The printing platform 5 adopts the aluminum plate 56, and the carbon fiber-silica gel heating wires are arranged below the printing platform 5 and are uniformly distributed, and the high-temperature-resistant adhesive tape is attached to the carbon fiber-silica gel heating wires. The bottom of the printing platform 5 is also provided with a platform rib plate 42.
As shown in fig. 2 and 3, the Z-axis moving mechanism includes two ball screws 17, four Z-axis optical axes 14, two L-shaped connecting members, a Z-axis synchronous belt 39 and a Z-axis stepping motor 22, the ball screws 17 are respectively disposed on the front and rear sides of the printing platform, a nut seat 19 is disposed on each ball screw 17, a ball screw nut 18 is disposed in each nut seat 19, the Z-axis optical axis 14 is disposed on the left and right sides of each ball screw 17, a linear bearing 15 is disposed on each Z-axis optical axis 14, and the front and rear sides of the printing platform are respectively mounted on the nut seat 19 and the linear bearing 15 on the corresponding side through one L-shaped connecting member 21; the lower end of each ball screw 17 is provided with a first Z-axis synchronous pulley 20, a motor shaft of the Z-axis stepping motor 22 is provided with a second Z-axis synchronous pulley 38, the Z-axis stepping motor 22 is mounted on the rack through a motor frame, the rack is further provided with a guide wheel 40, the guide wheel 40 is located between the first Z-axis synchronous pulley 20 and the second Z-axis synchronous pulley 38, and the second Z-axis synchronous pulley 38 is connected with the first Z-axis synchronous pulley 20 and the guide wheel 40 through a Z-axis synchronous belt 39. The upper end and the lower end of each ball screw 17 are mounted on the machine frame through screw supports 16, and the Z-axis optical axis 14 is mounted on the machine frame through an optical axis support 13. The ball screw 17 and the screw support 16 thereof are symmetrically arranged at the centers of the left side and the right side of the rack, and the ball screw nut 18 and the nut seat 19 thereof are concentrically matched with the ball screw 17 and form an up-down sliding pair with the ball screw 17; the Z-axis optical axis 14 and the optical axis support 13 thereof are symmetrically arranged at the left side and the right side of the ball screw 17 and the support 16 thereof; the linear bearing 15 is concentrically matched with the Z-axis optical axis 14 and forms an up-and-down sliding pair with the Z-axis optical axis 14; the L-shaped connecting piece 21 is fixed with the nut seats 19 and the linear bearings 15 on the left side and the right side; the first Z-axis synchronous belt pulley 20 is sleeved at the bottoms of the ball screws 17 on the left side and the right side; the stepping motor is installed on the front side of the front ball screw 17.
As shown in fig. 2 and 4, the mechanism for driving the horizontal movement of the print head includes an X-axis moving mechanism 2 and a Y-axis moving mechanism 3. The X-axis moving mechanism 2 comprises an X-axis stepping motor 46, an X-axis linear guide rail 48, an X-axis synchronous wheel 62, an X-axis idle wheel 37 and an X-axis synchronous belt, wherein the X-axis linear guide rail 48 is transversely arranged on the aluminum profile 9, the left end and the right end of the X-axis linear guide rail 48 are respectively arranged on two Y-axis optical axes 33 in a manner of being capable of moving back and forth through a linear bearing, and meanwhile, the X-axis linear guide rail 48 is fixedly connected with the lower side of the Y-axis synchronous belt 30 through a synchronous belt bracket 35; the X-axis stepping motor 46 is installed at the left end of the X-axis linear guide rail 48 through a motor support 47, the X-axis synchronizing wheel 62 is located behind the X-axis stepping motor 46 and installed on an output shaft of the stepping motor 46, the X-axis idle wheel 37 is installed at the right end of the X-axis linear guide rail 48 through an idle wheel support 36, and the X-axis idle wheel 37 is connected with the X-axis synchronizing wheel 62 through an X-axis synchronous belt.
The Y-axis moving mechanism 3 comprises two Y-axis transmission shafts 45, two Y-axis optical axes 33, a Y-axis synchronous belt 30 and a Y-axis stepping motor 23, the two Y-axis transmission shafts 45 are respectively rotatably mounted on the frames on the front side and the rear side of the printing head, the Y-axis stepping motor 23 is mounted on the frame, an output shaft of the Y-axis stepping motor is provided with a first Y-axis synchronous belt wheel 25, one end of one Y-axis transmission shaft is provided with a second Y-axis synchronous belt wheel 27, the first Y-axis synchronous belt wheel 27 is connected with the second Y-axis synchronous belt wheel 25 through a synchronous belt 26, the other end of one Y-axis transmission shaft is provided with a third Y-axis synchronous belt wheel 43, the other end of the other Y-axis transmission shaft is provided with a Y-axis idle wheel 31, and the third Y-; the two Y-axis optical axes 33 are located below the two Y-axis drive shafts 45 and are disposed on the frame on the left and right sides of the print head. The front end and the rear end of the Y-axis optical axis 33 are respectively installed on the frame through a support 34, the two ends of a transmission shaft 45 are respectively rotatably installed on the frame through a bearing with a seat 44, and the Y-axis idle wheel 31 is installed on the other transmission shaft through an idle wheel bracket 32. The support plate 29 is installed outside the second Y-axis synchronous pulley 27 and is installed on the frame through the spacer 28, and the Y-axis stepping motor 23 is installed on the frame through the motor bracket 24.
As shown in fig. 5, the main print head 8 and the sub print head 7 above the print platform 5 have the same structure, and each print head includes a print head support 50, a belt pressing plate 60, a print head cooling fan 51 for cooling the print head, a print head cooling fan 52 for cooling the print head, a print head radiator 59, a heating block 58 and a print head 57, the print head cooling fan 51, the print head cooling fan 52, the print head radiator 59, the heating block 58 and the print head 57 constitute a print head body, the top of the print support 50 is provided with a material inlet, an air-operated head 55 connected with the extruder is arranged at the material inlet, and the air-operated head 55 is connected with the extruder through a material connecting pipe. The printing nozzle 57 is installed on the lower end of the throat, the printing head radiator 59 is installed on the printing head bracket 50 and surrounds the throat, the upper end of the throat is communicated with the material inlet, the heating block 58 is positioned below the printing head radiator 59 and sleeved on the throat, the printing head cooling fan 51 is installed on the left side of the printing head bracket 50, the air outlet of the printing head cooling fan is arranged towards the printing head radiator 59, and the printing piece cooling fan 52 is installed on the front side of the printing head bracket 50, and the air outlet of the printing piece cooling fan is arranged downwards; the rear side of the print head bracket 50 is provided with a slide block 49, and the slide block 49 is installed on the X-axis linear guide rail 48 and forms a left-right sliding pair with the X-axis linear guide rail 48.
The belt pressing plate 60 and the printing head support 50 form a clamping plate structure used for clamping an X-axis synchronous belt, the belt pressing plate 60 of the main printing head 8 is locked on the X-axis synchronous belt through a locking bolt 54, a manual nut 54 used for disengaging between the belt pressing plate 60 and the synchronous belt is further arranged on the printing head support 50 of the auxiliary printing head 7, the manual nut 54 is located behind a material inlet, the manual nut 54 is matched and connected with a clamping screw 61, the clamping screw 61 is installed on the printing head support, after the distance between the auxiliary printing head 7 and the main printing head 8 is adjusted, the belt pressing plate 60 of the auxiliary printing head 7 is locked on the X-axis synchronous belt through screwing the manual nut 54, synchronous printing of the auxiliary printing head 7 and the main printing head 8 is achieved, and printing precision and synchronization degree are improved.
The extruder 6 is arranged at the rear side of the frame and comprises an extruding device 65, an extruder motor 63 and an extruder pneumatic head 64, materials are sent to the printing head through a material connecting pipe at the upper part, the common wheel type feeding mechanism is distinguished, and the printing speed, the material density and the like can be improved by using an extruding module.
The Z-axis stepping motor 22 lifts the printing platform 5 in a toothed belt transmission mode, and the toothed belt transmission improves the running stability and the printing accuracy of the mechanism. The X stepping motor 46 and the Y stepping motor 23 drive the main printhead 8 and the sub printhead 7 to perform horizontal movement in a horizontal plane by means of belt transmission. The dual printheads are respectively provided with a printhead cooling fan 51 and a printhead heat sink 59 for dissipating heat to the printheads, so that the printing process is smoother and safer.
The auxiliary printing head 7 and the main printing head 8 adopt a parallel linkage mechanism, the size and the model of each spray head can be selected, and the application range is wide.
The large aluminum profile outer frame is adopted for fixing, the lead screw and the belt are used for transmission, and the optical axis and the linear rail are positioned, so that the structural stability and the printing precision of the equipment are improved; providing a moving strategy in XYZ three directions by adopting a mode of connecting a direct current motor with a toothed belt; the innovation of the double-head parallel structure and the common design of the feeder enable the equipment to use ABS or PLA materials with various colors, can realize multiple functions of single-head monochromatic printing, single-head double-color printing, double-head monochromatic printing, mixed color printing and the like, greatly improve the printing efficiency, increase the process value of printed products and save the equipment cost; the maximum molding range of 400 × 400mm makes the composite material suitable for designers, engineers, educators and other professionals, and can be applied to various fields such as toy models, education industry, art design, assembly prototype, tool fixtures, building models and the like.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (6)

1. The utility model provides a multi-functional 3D printer of double-end which characterized in that: the printing device comprises a rack, a printing head, a printing platform, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and two extruders, wherein the printing head is arranged on the rack; the bottom of the printing platform is uniformly provided with carbon fiber-silica gel heating wires, and the two extruders are arranged at the upper edge of the rack and are respectively connected with the main printing head and the auxiliary printing head through material connecting pipes;
the main printing head and the auxiliary printing head realize synchronous printing in the X-axis direction, the Y-axis direction and the Z-axis direction through the X-axis moving mechanism, the Y-axis moving mechanism and the Z-axis moving mechanism.
2. The dual head multifunction 3D printer of claim 1, wherein: the Z-axis moving mechanism comprises two ball screws, four Z-axis optical axes, two L-shaped connecting pieces, a Z-axis synchronous belt and a Z-axis stepping motor, wherein the front side and the rear side of the printing platform are respectively provided with one ball screw, each ball screw is provided with a nut seat, each nut seat is internally provided with one ball screw nut, the left side and the right side of each ball screw are respectively provided with one Z-axis optical axis, each Z-axis optical axis is provided with a linear bearing, and the front side and the rear side of the printing platform are respectively arranged on the nut seat and the linear bearing on one corresponding side through one L-shaped connecting piece; the lower extreme of every ball all is equipped with a first Z axle synchronous pulley, Z axle step motor's motor shaft is equipped with second Z axle synchronous pulley, Z axle step motor passes through the motor frame and installs in the frame, still be equipped with a leading wheel in the frame, this leading wheel is located between first Z axle synchronous pulley and the second Z axle synchronous pulley, passes through Z axle synchronous belt connection between second Z axle synchronous pulley and first Z axle synchronous pulley and the leading wheel.
3. The dual head multifunction 3D printer of claim 2, wherein: the Y-axis moving mechanism comprises two Y-axis transmission shafts, two Y-axis optical axes, a Y-axis synchronous belt and a Y-axis stepping motor, the two Y-axis transmission shafts are respectively rotatably arranged on the machine frames on the front side and the rear side of the printing head, the Y-axis stepping motor is arranged on the machine frame, an output shaft of the Y-axis stepping motor is provided with a first Y-axis synchronous belt wheel, one end of one Y-axis transmission shaft is provided with a second Y-axis synchronous belt wheel, the first Y-axis synchronous belt wheel is connected with the second Y-axis synchronous belt wheel through the synchronous belt, the other end of one Y-axis transmission shaft is provided with a third Y-axis synchronous belt wheel, the other end of the other Y-axis transmission shaft is provided with a Y-axis idle wheel; the two Y-axis optical shafts are positioned below the two Y-axis transmission shafts and are arranged on the machine frames on the left side and the right side of the printing head.
4. The dual head multifunction 3D printer of claim 3, wherein: the X-axis moving mechanism comprises an X-axis linear guide rail, an X-axis synchronous belt and an X-axis stepping motor, the left end and the right end of the X-axis linear guide rail are respectively arranged on two Y-axis optical axes in a back-and-forth moving mode through a linear bearing, and meanwhile, the X-axis linear guide rail is fixedly connected with the lower side of the Y-axis synchronous belt through a synchronous belt support;
the X-axis stepping motor is installed on the left end of the X-axis linear guide rail, an X-axis synchronous belt wheel is arranged on an output shaft of the X-axis stepping motor, an X-axis idle wheel is arranged on the right end of the X-axis linear guide rail, and the X-axis synchronous belt wheel is connected with the X-axis idle wheel through an X-axis synchronous belt.
5. The dual head multifunction 3D printer of claim 4, wherein: each printing head comprises a printing head support, a printing head body and a belt pressing plate, the printing head body is installed on the printing head support, a material inlet is formed in the top of the printing support, a pneumatic head connected with an extruder is arranged at the material inlet, a sliding block is arranged on the rear side of the printing head support, and the sliding block is installed on an X-axis linear guide rail and forms a left-right sliding pair with the X-axis linear guide rail; the belt pressing plate and the printing head support form a clamping plate structure used for clamping an X-axis synchronous belt, and a manual nut used for disengaging the belt pressing plate and the synchronous belt is further arranged on the printing head support of the auxiliary printing head.
6. The dual head multifunction 3D printer of claim 5, wherein: and a platform rib plate is also arranged at the bottom of the printing platform.
CN201911306149.1A 2019-12-18 2019-12-18 Multi-functional 3D printer of double-end Pending CN111016166A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022105032A1 (en) * 2020-11-20 2022-05-27 深圳市创想三维科技有限公司 Z-axis device for 3d printer and 3d printer
CN114603874A (en) * 2022-03-21 2022-06-10 西南科技大学 Fused deposition modeling system and method
RU2800191C1 (en) * 2022-11-30 2023-07-19 Василий Рафаилович Даутов 3d printer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022105032A1 (en) * 2020-11-20 2022-05-27 深圳市创想三维科技有限公司 Z-axis device for 3d printer and 3d printer
CN114603874A (en) * 2022-03-21 2022-06-10 西南科技大学 Fused deposition modeling system and method
RU2800191C1 (en) * 2022-11-30 2023-07-19 Василий Рафаилович Даутов 3d printer

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