CN110712365A - A small-size integration 3D printer for teaching and family - Google Patents

A small-size integration 3D printer for teaching and family Download PDF

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Publication number
CN110712365A
CN110712365A CN201910902427.3A CN201910902427A CN110712365A CN 110712365 A CN110712365 A CN 110712365A CN 201910902427 A CN201910902427 A CN 201910902427A CN 110712365 A CN110712365 A CN 110712365A
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CN
China
Prior art keywords
axis
printing
rod
moving mechanism
shell
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.)
Pending
Application number
CN201910902427.3A
Other languages
Chinese (zh)
Inventor
杜学文
杨泽日
潘炳
王子寅
张雨林
刘祥如
徐巧宁
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.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
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Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN201910902427.3A priority Critical patent/CN110712365A/en
Publication of CN110712365A publication Critical patent/CN110712365A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/10Processes of additive manufacturing
    • B29C64/106Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118Processes 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]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/227Driving means
    • B29C64/232Driving means for motion along the axis orthogonal to the plane of a layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/227Driving means
    • B29C64/236Driving means for motion in a direction within the plane of a layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/245Platforms or substrates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive 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
    • B29C64/20Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/295Heating elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE 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
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor

Abstract

A small-size integration 3D printer for teaching and family includes: a housing; the horizontal position adjusting device of the spray head comprises an X-axis horizontal moving mechanism and a Y-axis horizontal moving mechanism, wherein the X-axis horizontal moving mechanism is suspended at the top of the shell, and an X-axis moving part of the X-axis horizontal moving mechanism is slidably arranged on an X-axis fixing part; the Y-direction fixing part of the Y-axis horizontal moving mechanism is arranged on the X-direction moving part of the X-direction horizontal moving mechanism; a Y-direction moving part of the Y-axis horizontal moving mechanism is slidably arranged on the Y-direction fixing part; the material supply device comprises a melting conveying unit and a feeding unit; the lifting model bearing device comprises a printing platform and a Z-axis lifting device; and a print control device including a control panel and a print controller. The invention has the following beneficial effects: the module is clear, and the self-assembly is convenient; the printed product is safe and quick; the spray head moves flexibly, and the printing process is stable and reliable.

Description

A small-size integration 3D printer for teaching and family
Technical Field
The invention relates to a small-sized integrated 3D printer for teaching and families.
Background
The 3D printing technology is a novel high-tech forming technology which is continuously developed and advanced, and is a forming technology which uses a three-dimensional graph of a computer as a prototype, and fills and bonds metal, organic composite plastic, ceramic, powder and other consumables according to a formulated path by using modes such as laser, melting and the like. Compared with the traditional manufacturing industry, the 3D printing and forming technology can reduce the manufacturing difficulty to a certain extent, and does not need large-scale machine tool molds and the like, so that the production cost is reduced to a certain extent, and the production period is shortened. The 3D printing technology is a milestone for manufacturing, and some countries consider the 3D printing technology as a new industrial revolution, so that the 3D printing technology has great research significance nowadays and becomes a common concern at home and abroad.
At present, the 3D printing technology is mainly applied to the manufacturing industry, but the technology is not fully popularized and popularized in daily life, and cannot really walk into a common family to become the assistance force in life. And the common printer that exists in the existing market has the printing shower nozzle and easily blocks up, the transmission is steady scheduling problem inadequately, can cause inconvenience in daily use, influences the machining precision.
Disclosure of Invention
In order to overcome the current domestic 3D print head in market and be not nimble enough easily to block up, Z axle transmission is steady scheduling problem inadequately, provide a small-size integration 3D printer for teaching and family, this kind of 3D printer structure is simple and easy, and the stable performance is reliable, prints product safety swift, and 3D printer easily increases and decreases the module, makes things convenient for the dismouting, the daily use of the family of being convenient for.
The invention relates to a small-sized integrated 3D printer for teaching and family, which is characterized by comprising the following components:
the shell comprises a shell body and a baffle plate hinged on the shell body, the shell body is provided with a printing cavity for mounting and printing, the top of the shell body is provided with a skylight for observing the printing condition in the printing cavity, the side baffle plate of the shell body is provided with a taking and placing opening for taking and placing articles in the printing cavity, and the taking and placing opening is hinged with a stop door;
the horizontal position adjusting device of the spray head comprises an X-axis horizontal moving mechanism and a Y-axis horizontal moving mechanism, wherein the X-axis horizontal moving mechanism is suspended at the top of the shell, and an X-axis moving part of the X-axis horizontal moving mechanism is slidably arranged on an X-axis fixing part; the Y-direction fixing part of the Y-axis horizontal moving mechanism is arranged on the X-direction moving part of the X-direction horizontal moving mechanism, so that the Y-axis horizontal moving mechanism can move along the X-direction fixing part of the X-direction horizontal moving mechanism under the driving of the X-direction moving part; a Y-direction moving part of the Y-axis horizontal moving mechanism is slidably arranged on the Y-direction fixing part;
a material supply device which comprises a melting conveying unit for melting and spraying the wire rod to the model carrying device and a feeding unit for conveying the non-melting wire rod to the melting conveying unit, wherein the feeding unit is hung on the top cross beam of the shell, and a discharging part of the feeding unit conveys the non-melting wire rod to the melting conveying unit; the melting conveying unit is arranged on the Y-direction moving part, and a spray head of the melting conveying unit is aligned with the movable printing platform;
the lifting type model bearing device comprises a printing platform and a Z-axis lifting device, wherein the Z-axis lifting device is arranged between the spray head horizontal position adjusting device and the printing platform, and the top of the Z-axis lifting device is connected with the spray head horizontal position adjusting device in a sliding manner; the bottom of the Z-axis lifting device is in threaded connection with the printing platform, so that the printing platform is driven by the Z-axis lifting device to vertically lift along the Z-axis direction to adjust the distance between the printing platform and the melting and conveying unit;
the printing control device comprises a control panel and a printing controller, wherein the control panel is arranged on the front surface of the shell and used for adjusting printing parameters; the power transmission end of the printing controller is electrically connected with an external power supply, and the signal transmission port and the signal output end of the control panel of the printing controller are respectively in signal connection with the control end of the material supply device, the control end of the spray head horizontal position adjusting device and the control end of the lifting type model bearing device and are used for controlling the material supply device, the spray head horizontal position adjusting device and the lifting type model bearing device to work.
The shell comprises a frame and a baffle plate which is arranged outside the shell in a surrounding mode, the frame is a cubic frame consisting of four upright posts and eight cross rods, the transparent baffle plate covers the outside of the frame, a skylight is arranged on the transparent baffle plate at the top of the frame, a taking and placing opening is formed in one side baffle plate of the frame, and a baffle door is hinged to the taking and placing opening.
The X-axis horizontal moving mechanism comprises an X-axis stepping motor, a pair of X-direction track assemblies which serve as X-direction fixing parts and are arranged in parallel, and a pair of X-direction track limiting blocks which serve as X-direction moving parts and are respectively sleeved on the corresponding X-direction track assemblies, wherein the X-axis stepping motor is mounted at the top of the Z-axis lifting device and is connected with a first gear synchronous wheel belt of one set of X-direction track assemblies through a displacement limiting conveyor belt; the X-direction track assembly comprises a first connecting polished rod, a first fixing frame, first tooth synchronizing wheels and first tooth-shaped belts, the first connecting polished rod is horizontally suspended at the top of the shell through the first fixing frame, the end parts of the first connecting polished rod are respectively sleeved with the first tooth synchronizing wheels, two ends of each first tooth-shaped belt are tensioned through the two first tooth synchronizing wheels, and the first tooth-shaped belts are meshed with the first tooth synchronizing wheels, so that the first tooth-shaped belts are driven by the two first tooth synchronizing wheels to rotate circumferentially; an X-axis guide rail limiting block is fixedly arranged on the first toothed belt, a Y-axis horizontal moving mechanism is arranged between the two X-axis guide rail limiting blocks, and the length direction of the first toothed belt is defined to be the X direction.
The Y-axis horizontal moving mechanism comprises a Y-axis stepping motor, a pair of Y-direction track assemblies which are used as Y-direction fixing parts and are arranged in parallel, and a pair of Y-direction track limiting blocks which are used as Y-direction moving parts and are respectively sleeved on the corresponding Y-direction track assemblies, and the Y-axis stepping motor is suspended on the Y-direction track assemblies through an end cover and is connected with a second synchronous gear of one set of Y-direction track assemblies; the Y-direction track assembly comprises a second connecting polished rod, a second fixing frame, a second synchronous gear and a second toothed belt, the second connecting polished rod is horizontally suspended on the top of the shell through the second fixing frame, the end part of the second connecting polished rod is respectively sleeved with the second synchronous gear and a second sleeve, the second connecting polished rod and the first connecting polished rod are connected in a staggered mode to form a rectangular structure horizontally suspended on the top of the shell, the end parts of the connected first connecting polished rod and the second connecting polished rod are connected with each other through a group of mutually meshed synchronous gear sets, two ends of the second toothed belt are tensioned through the two second synchronous gears, and the second toothed belt is meshed with the second synchronous gears, so that the second toothed belt is driven by the two second synchronous gears to rotate circumferentially; a Y-direction guide rail limiting block is fixedly arranged on the second toothed belt, a first limiting polished rod is arranged between the two Y-direction guide rail limiting blocks serving as the Y-direction moving part, a sliding block used for installing a melting conveying module is assembled on the first limiting polished rod, the sliding block is sleeved on a second limiting polished rod, two end parts of the second limiting polished rod are fixedly connected with the Y-direction guide rail limiting blocks on the same side respectively, the second fixing frame is provided with two through hole parts, and the two through hole parts are provided with limiters; the second toothed belt is defined in the longitudinal direction as the Y direction.
The feeding unit comprises a first stepping motor and a wire rod conveying mechanism, the wire rod conveying mechanism is installed on the cross beam, the first stepping motor is fixedly connected with the wire rod conveying mechanism through a bolt, an output gear of the first stepping motor is meshed with a power input gear of the wire rod conveying mechanism and used for driving the power input gear on the wire rod conveying mechanism to rotate and convey the wire rods quantitatively, and the wire rods are conveyed to a heating block of the melting conveying module.
The melting and conveying unit comprises a first connecting ring, a heating block, a copper guide pipe, a spray head and a temperature detection block, wherein the heating block is fixedly arranged on a Y-direction moving part of the Y-axis horizontal moving mechanism and synchronously moves along with the Y-direction moving part; the heating block is sleeved outside the copper conduit, a first connecting ring is embedded at the upper part of the heating block, a temperature detection block is fixedly arranged at the lower part of the heating block, and a heating connecting end of the heating block is electrically connected with a corresponding signal connecting port of a heating circuit of the printing controller through a lead and is used for heating the copper conduit arranged in an inner cavity of the heating block; the upper end of the copper guide pipe is sleeved with a first connecting ring, the lower end of the copper guide pipe is communicated with a spray head to form a melting passage capable of melting and spraying the wire, and the spray head is aligned to the printing platform to spray the printing platform.
The Z-axis lifting device is respectively and symmetrically arranged on the outer sides of the upright posts on the two sides of the shell and comprises a polished rod fixing frame, a vertical guide rod, a fixing bolt, a sleeve, a motor fixing frame, a third stepping motor, a screw rod, a connecting ring and a coupler, wherein the third stepping motor is arranged on the motor fixing frame and is fixedly connected to the bottom of the shell frame through the fixing bolt; the lower end of the vertical guide rod is sleeved with a sleeve and is fixedly connected with the motor fixing frame through a fastening bolt, and the upper end of the vertical guide rod penetrates out of the through hole of the polished rod fixing frame; the through hole of the thin plate part of the polish rod fixing frame is provided with a fixing bolt which is fixedly arranged at the upper end of the upright post of the shell and used for limiting the limit position in the Z-axis direction.
The printing platform comprises a plate body and a printing base, wherein the printing base is fixedly connected with the motor fixing frame, the plate body is fixedly connected with the printing base through a bolt, and the surface of the bolt is sleeved with a spring and is placed between the plate body and the base.
The invention has the following beneficial effects: (1) the 3D printer has clear modules and is convenient to assemble by oneself; (2) the printed product is safe and quick; (3) the spray head moves flexibly, and the printing process is stable and reliable.
Drawings
Fig. 1a is one of the general structural diagrams of the embodiment of the present invention.
Fig. 1b is a second schematic structural diagram of the embodiment of the present invention.
Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present invention.
Fig. 3 is an exploded view of a material supply apparatus according to an embodiment of the present invention.
Fig. 4 is an exploded view of the horizontal position adjustment device of the sprinkler head according to the embodiment of the present invention.
Fig. 5 is an exploded view of the Z-axis motion driving device according to the embodiment of the present invention.
Fig. 6 is an exploded view of a mold carrier according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
With reference to the accompanying drawings:
embodiment 1a small-sized integrated 3D printer for teaching and home according to the present invention comprises:
the shell 1 comprises a shell and a baffle hinged on the shell, the shell is provided with a printing cavity for mounting and printing, the top of the shell is provided with a skylight for observing the printing condition in the printing cavity, the side baffle of the shell is provided with a pick-and-place opening for picking and placing articles in the printing cavity, and the pick-and-place opening is hinged with a stop door;
the horizontal position adjusting device 3 of the shower nozzle, including X axle horizontal movement mechanism 31 and Y axle horizontal movement mechanism 32, wherein X is hung on the top of the outer casing to the horizontal movement mechanism 31 of the X, the X of the horizontal movement mechanism 31 of the X axle moves the part to install on X to fix part slidably; the Y-direction fixed part of the Y-axis horizontal moving mechanism 32 is arranged on the X-direction moving part of the X-direction horizontal moving mechanism, so that the Y-axis horizontal moving mechanism can move along the X-direction fixed part of the X-direction horizontal moving mechanism under the driving of the X-direction moving part; a Y-direction moving part of the Y-axis horizontal moving mechanism is slidably arranged on the Y-direction fixing part;
a material supply device 2 including a melt-conveying unit 20 for melting and spraying the wire material to the mold carrier and a feeding unit 21 for feeding the non-melted wire material to the melt-conveying unit, the feeding unit 21 being hung on the top cross member of the housing 1, and a discharging portion of the feeding unit 21 feeding the non-melted wire material to the melt-conveying unit 20; the melting and conveying unit 20 is arranged on the Y-direction moving part, and a spray head of the melting and conveying unit is aligned with the movable printing platform;
the lifting type model bearing device 5 comprises a printing platform 51 and a Z-axis lifting device 4, wherein the Z-axis lifting device 4 is arranged between the spray head horizontal position adjusting device and the printing platform 51, and the top of the Z-axis lifting device 4 is in sliding connection with the spray head horizontal position adjusting device 3; the bottom of the Z-axis lifting device is connected with the printing platform, so that the printing platform is driven by the Z-axis lifting device to vertically lift along the Z-axis direction to adjust the distance between the printing platform and the melting and conveying unit;
the printing control device comprises a control panel and a printing controller, wherein the control panel is arranged on the front surface of the shell and used for adjusting printing parameters; the power transmission end of the printing controller is electrically connected with an external power supply, and the signal transmission port and the signal output end of the control panel of the printing controller are respectively in signal connection with the control end of the material supply device, the control end of the spray head horizontal position adjusting device and the control end of the lifting type model bearing device and are used for controlling the material supply device, the spray head horizontal position adjusting device and the lifting type model bearing device to work.
The shell comprises a frame and a baffle plate which is arranged outside the shell in a surrounding mode, the frame is a cubic frame consisting of four upright posts and eight cross rods, the transparent baffle plate covers the outside of the frame, a skylight is arranged on the transparent baffle plate at the top of the frame, a taking and placing opening is formed in one side baffle plate of the frame, and the taking and placing opening is hinged to a baffle door 11.
The X-axis horizontal moving mechanism 31 comprises an X-axis stepping motor 313, a pair of X-direction track assemblies serving as X-direction fixing portions and arranged in parallel, and a pair of X-direction track limiting blocks 304 serving as X-direction moving portions and respectively sleeved on the corresponding X-direction track assemblies, wherein the X-axis stepping motor 313 is suspended at the top of the Z-axis lifting device 4 through an end cover 309 and is connected with a first toothed synchronous wheel belt 306 of one set of the X-direction track assemblies through a displacement limiting conveyor belt 308; the X-direction track assembly comprises a first connecting polished rod 316, a first fixing frame 301, a first tooth synchronous wheel 303 and a first tooth-shaped belt 306, the first connecting polished rod 316 is horizontally suspended at the top of the shell through the first fixing frame 301, the end part of the first connecting polished rod 316 is respectively sleeved with the first tooth synchronous wheel 306 and the first sleeve 302, two ends of the first tooth-shaped belt 306 are tensioned through the two first tooth synchronous wheels, and the first tooth-shaped belt 306 is meshed with the first tooth synchronous wheel 303, so that the first tooth-shaped belt 306 is driven by the two first tooth synchronous wheels to rotate circumferentially; an X-axis guide rail limiting block is fixedly arranged on the first toothed belt 306, a Y-axis horizontal moving mechanism is arranged between the two X-axis guide rail limiting blocks, and the length direction of the first connecting light rod is defined to be the X direction.
The Y-axis horizontal moving mechanism 32 includes a Y-axis stepping motor 317, a pair of Y-direction track assemblies serving as Y-direction fixing portions and arranged in parallel, and a pair of Y-direction track limiting blocks 318 serving as Y-direction moving portions and respectively sleeved on the corresponding Y-direction track assemblies, and the Y-axis stepping motor is suspended on the Y-direction track assemblies through an end cover 324 and connected with a second synchronous gear of one set of the Y-direction track assemblies; the Y-direction track assembly comprises a second connecting polished rod 319, a second fixing frame 307, a second synchronous gear 320 and a second toothed belt 321, the second connecting polished rod 319 is horizontally suspended on the top of the shell through the second fixing frame 307, the end part of the second connecting polished rod 319 is respectively sleeved with the second synchronous gear 320 and a second sleeve 305, and the second connecting polished rod 319 and the first connecting polished rod 316 are connected in a staggered manner to form a rectangular structure horizontally suspended on the top of the shell; the two ends of the second toothed belt 321 are tensioned by the two second toothed synchronous gears 320, and the second toothed belt 321 is meshed with the second toothed synchronous gears 320, so that the second toothed belt 321 is driven by the two second toothed synchronous gears 320 to rotate circumferentially; a Y-direction guide rail limiting block 318 is fixedly arranged on the second toothed belt 321, a first limiting polished rod 315 is arranged between the two Y-direction guide rail limiting blocks serving as Y-direction moving parts, a sliding block 311 for installing a melting conveying module is assembled on the first limiting polished rod 315, two horizontally arranged through holes are arranged on the sliding block, horizontal central shafts of the two through holes are vertical to each other, and the first limiting polished rod 315 can be inserted into the first limiting polished rod as an X-direction through hole; the second through hole can be used as a Y-direction through hole and inserted into the second limiting polished rod, the two through holes are internally provided with through hole sleeves 201, the sliding block 311 is sleeved on the second limiting polished rod 322, two end parts of the second limiting polished rod 322 are fixedly connected with the Y-direction guide rail limiting blocks on the same side respectively, the second fixing frame 307 is provided with two through hole parts, and the two through hole parts are provided with limiting devices 312; the length direction of the second connecting light rod is defined as Y direction.
The feeding unit 21 comprises a first stepping motor 211 and a wire rod conveying mechanism 212, the wire rod conveying mechanism 212 is installed on the cross beam, the first stepping motor 211 is fixedly connected with the wire rod conveying mechanism through a bolt, an output gear of the first stepping motor 211 is meshed with a power input gear of the wire rod conveying mechanism and used for driving the power input gear on the wire rod conveying mechanism to rotate and convey the wire rod quantitatively, and the wire rod is conveyed to a heating block of the melting and conveying module.
The melting and conveying unit 20 comprises a first connecting ring 202, a heating block 203, a copper guide pipe, a spray head 206 and a temperature detection block 205, wherein the heating block 203 is fixedly arranged on a Y-direction moving part of the Y-axis horizontal moving mechanism and moves synchronously along with the Y-direction moving part; the heating block 203 is sleeved outside the copper conduit, the upper part is embedded with the first connecting ring 202, the lower part is fixedly provided with the temperature detection block 205, and the heating connecting end of the heating block 203 is electrically connected with the corresponding signal connecting port of the heating circuit of the printing controller through a lead and is used for heating the copper conduit arranged in the inner cavity of the heating block; the upper end of the copper guide pipe is sleeved with a first connecting ring, the lower end of the copper guide pipe is communicated with a spray head to form a melting passage capable of melting and spraying the wire, and the spray head is aligned to the printing platform to spray the printing platform.
The Z-axis lifting device 4 is respectively and symmetrically arranged on the outer sides of the upright posts on the two sides of the shell and comprises a polished rod fixing frame 401, a vertical guide rod 402, a fixing bolt 403, a sleeve 404, a motor fixing frame 405, a third stepping motor 406, a screw rod 407, a connecting ring 408 and a coupling 409, wherein the third stepping motor is arranged on the motor fixing frame 405 and is fixedly connected to the bottom of the shell frame through the fixing bolt, and an output shaft of the third stepping motor is fixedly connected with the lower end of the screw rod through the coupling; the upper end of the screw rod penetrates through a through hole on the polished rod fixing frame; the connecting ring is sleeved outside the screw rod, the screw rod and the connecting ring are in threaded connection to form a screw rod nut pair, and the connecting ring is fastened with the printing platform through a fixing bolt; the lower end of the vertical guide rod is sleeved with a sleeve 404 and is fixedly connected with the motor fixing frame through a fastening bolt, and the upper end of the vertical guide rod penetrates out of the through hole of the polish rod fixing frame; the through hole of the thin plate part of the polish rod fixing frame is provided with a fixing bolt which is fixedly arranged at the upper end of the upright post of the shell and used for limiting the limit position in the Z-axis direction.
The printing platform 51 comprises a plate body 501 and a printing base 502, the printing base is fixedly connected with a motor fixing frame, the plate body is fixedly connected with the printing base through a bolt, a spring is sleeved on the surface of the bolt, and the printing base is placed between the plate body and the base.
Embodiment 2 as shown in fig. 1 and 2, a small-sized integrated 3D printer for teaching and home use comprises a housing 1, a material supply device 2, a nozzle horizontal position adjusting device 3, a lifting model bearing device 5 and a printing control device, wherein the printer is in a cube shape and is convenient to place, the nozzle horizontal position adjusting device 3 is installed at the top of the cube printer, a feeding module of the material supply device is fixed on the outer surface of the printer, a melting conveying module is installed on the nozzle horizontal position adjusting device 3, and the device controls the X, Y-direction position of a material supply end. The Z-axis lifting device 4 of the lifting model bearing device is arranged on the inner side surface of the printer, and the printing platform 5 is arranged on the Z-axis lifting device 4 and controls the position in the Z direction. The lifting type model bearing device comprises a printing platform 5 and a Z-axis lifting device 4, a horizontal nozzle position adjusting device 3 is installed on a cross beam of the shell 1, the Z-axis lifting device 4 is symmetrically installed on two side faces of the shell 1, and the printing platform 5 is installed at the bottom of the Z-axis lifting device.
The shell is in a cube shape and comprises a shell body and a baffle hinged on the shell body, the shell body is provided with a printing cavity for mounting and printing, the top of the shell body is provided with a skylight for observing the printing condition in the printing cavity, the side baffle of the shell body is provided with a taking and placing opening for taking and placing articles in the printing cavity, and the taking and placing opening is hinged with a stop door; the casing includes the frame and encloses the baffle that keeps off in the casing outside, and the frame includes four stands and eight horizontal poles, and the left and right sides respectively has a crossbeam for installation polished rod mount 401. The eight faces of the cube are separated by transparent plastic baffles, so that the processing safety is ensured. When the device is used, the device is connected with an external power supply and respectively controls the heating of the spray nozzle 205, the rotation of the fan 206, the operation and the stop of each stepping motor and the like on the device, all the motors in the device adopt the stepping motors and can control the rotation angle to a certain degree so as to keep certain precision, realize quantitative rotation, guide the degree guided out by 3D model software into the printing controller, and select various operation functions, namely printable articles, on a control panel on the printing controller, the specific printing controller and 3D model design software have the currently disclosed technical scheme, and the principle and the algorithm of the device are not the technical characteristics of the invention so that the device is not described in detail.
As shown in fig. 1 and 3, the material supplying device includes two modules, namely a feeding module 21 and a melting and conveying module 20, the feeding module 21 includes a first stepping motor 211, the first stepping motor 211 is fixedly connected with a wire conveying mechanism 212 through a bolt and is fixed on a cross beam of the housing 1, the first stepping motor 211 rotates quantitatively to drive a gear on the wire conveying mechanism 212 to rotate and convey the wire quantitatively, so that the wire is conveyed to a heating block 203 of the melting and conveying module 20. In order to ensure the flexibility of the linear movement of the spray head, the melting and conveying module 20 is fixed at the intersection of the polished rods of the spray head horizontal position adjusting device 3, and slides on the two polished rods through the bearing sleeves of the spray head fixing frame 307 to realize the printing work in the direction of X, Y, the upper end of the heating block 203 is embedded with a copper conduit, the upper end of the copper conduit is sleeved with a connecting ring 202, the lower end of the heating block 203 is provided with a temperature detection block 205 and a spray head 206, the temperature detection block 205 detects the heating temperature, when the heating temperature reaches the set temperature, the spray head 206 extrudes the molten wire onto the printing platform 501, and the second fixing frame 307 is also provided with a fan for the heat dissipation of the spray.
As shown in fig. 4, the nozzle horizontal position adjusting device 3 uses an X-axis stepping motor and a Y-axis stepping motor as power elements, the X-axis stepping motor 313 and the Y-axis stepping motor respectively drive a first toothed belt 306 and a second toothed belt to transmit, and the first toothed belt 306 and the second toothed belt pass through a first toothed synchronizing wheel 303 and a second toothed synchronizing wheel, so that the first connecting polish rod and the second connecting polish rod can perform a rotary motion and drive an X-guide rail limiting block and a Y-guide rail limiting block through the first toothed belt 306 and the second toothed belt, so that the first connecting polish rod and the second connecting polish rod perform a linear reciprocating motion. At this time, the first and second connecting rods fixed to the X-and Y-guide rail stoppers linearly reciprocate in the direction X, Y, respectively, thereby driving the melt-transporting module 20 to rapidly move in the direction X, Y. The transmission mechanism allows the movement speed of the spray head in the direction X, Y to be the same. The model is relatively static in the printing process, the printing is realized only through the movement of the spray head, the overall movement is stable, and the positioning is accurate. The printer can realize quick and accurate printing. The nozzle fixing frame 307 is provided with two through hole parts, sliding blocks 311 are arranged in the two through hole parts to reduce friction of a polish rod of the nozzle fixing frame 307, and a limiting stopper 312 is positioned on the right side of the first fixing frame 504 and used for detecting the limit position of the X-axis in the negative direction.
As shown in fig. 5, the Z-axis lifting device 4 includes two third stepping motors 406 respectively mounted on two sides of the chassis and connected to the printing base 502 by a motor fixing frame 405. The third step motor is connected with the screw rod 407 through a coupler 409, and the linkage between the bearing device and the screw rod is realized through a connecting ring 408, so that when the screw rod rotates around a self central shaft under the driving of the third step motor, the connecting ring can axially lift along the screw rod to drive the printing platform to vertically lift. Two vertical guide rods 402 are matched with the printing platform through guide rod sleeves 404 and are limited and fixed through a polish rod fixing frame 401, and the stability and the guiding effect are improved. The polish rod holder 401 is fixed to a cross beam of the housing 1. The product adopts the design scheme of symmetrically arranging the double screw rods, so that the transmission is stable and reliable.
As shown in fig. 6, the lifting model carrying device 5 includes a printing platform 501 and a Z-axis lifting device, the printing platform 501 is connected with a printing base 502 through a bolt, a spring is sleeved on the surface of the bolt and placed between the printing platform 501 and the printing base 502, and the printing base 502 is provided with 6 pairs of holes for fixing the guide rod sleeve 402 and the connecting ring 408. The printing platform 501 mainly provides heat during printing and supports the printing model. This product adopts aluminium base board hot bed to replace traditional PCB board hot bed, compares traditional PCB board hot bed, and aluminium base board hot bed's intensity, heat conductivity are all better than the PCB board, and the bonding degree of fused consumptive material to aluminium base board hot bed is also higher moreover.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.

Claims (8)

1. A small-size integration 3D printer for teaching and family, its characterized in that includes:
the shell comprises a shell body and a baffle plate hinged on the shell body, the shell body is provided with a printing cavity for mounting and printing, the top of the shell body is provided with a skylight for observing the printing condition in the printing cavity, the side baffle plate of the shell body is provided with a taking and placing opening for taking and placing articles in the printing cavity, and the taking and placing opening is hinged with a stop door;
the horizontal position adjusting device of the spray head comprises an X-axis horizontal moving mechanism and a Y-axis horizontal moving mechanism, wherein the X-axis horizontal moving mechanism is suspended at the top of the shell, and an X-axis moving part of the X-axis horizontal moving mechanism is slidably arranged on an X-axis fixing part; the Y-direction fixing part of the Y-axis horizontal moving mechanism is arranged on the X-direction moving part of the X-direction horizontal moving mechanism, so that the Y-axis horizontal moving mechanism can move along the X-direction fixing part of the X-direction horizontal moving mechanism under the driving of the X-direction moving part; a Y-direction moving part of the Y-axis horizontal moving mechanism is slidably arranged on the Y-direction fixing part;
a material supply device which comprises a melting conveying unit for melting and spraying the wire rod to the model carrying device and a feeding unit for conveying the non-melting wire rod to the melting conveying unit, wherein the feeding unit is hung on the top cross beam of the shell, and a discharging part of the feeding unit conveys the non-melting wire rod to the melting conveying unit; the melting conveying unit is arranged on the Y-direction moving part, and a spray head of the melting conveying unit is aligned with the movable printing platform;
the lifting type model bearing device comprises a printing platform and a Z-axis lifting device, wherein the Z-axis lifting device is arranged between the spray head horizontal position adjusting device and the printing platform, and the top of the Z-axis lifting device is in threaded connection with the spray head horizontal position adjusting device; the bottom of the Z-axis lifting device is connected with the printing platform, so that the printing platform is driven by the Z-axis lifting device to vertically lift along the Z-axis direction to adjust the distance between the printing platform and the melting and conveying unit;
the printing control device comprises a control panel and a printing controller, wherein the control panel is arranged on the front surface of the shell and used for adjusting printing parameters; the power transmission end of the printing controller is electrically connected with an external power supply, and the signal transmission port and the signal output end of the control panel of the printing controller are respectively in signal connection with the control end of the material supply device, the control end of the spray head horizontal position adjusting device and the control end of the lifting type model bearing device and are used for controlling the material supply device, the spray head horizontal position adjusting device and the lifting type model bearing device to work.
2. A small-sized integrated 3D printer for teaching and home use as claimed in claim 1, wherein: the shell comprises a frame and a baffle plate which is arranged outside the shell in a surrounding mode, the frame is a cubic frame consisting of four upright posts and eight cross rods, the transparent baffle plate covers the outside of the frame, a skylight is arranged on the transparent baffle plate at the top of the frame, a taking and placing opening is formed in one side baffle plate of the frame, and a baffle door is hinged to the taking and placing opening.
3. A small-sized integrated 3D printer for teaching and home use as claimed in claim 1, wherein: the X-axis horizontal moving mechanism comprises an X-axis stepping motor, a pair of X-direction track assemblies which serve as X-direction fixing parts and are arranged in parallel, and a pair of X-direction track limiting blocks which serve as X-direction moving parts and are respectively sleeved on the corresponding X-direction track assemblies, wherein the X-axis stepping motor is mounted at the top of the Z-axis lifting device and is connected with a first gear synchronous wheel belt of one set of X-direction track assemblies through a displacement limiting conveyor belt; the X-direction track assembly comprises a first connecting polished rod, a first fixing frame, first tooth synchronizing wheels and first tooth-shaped belts, the first connecting polished rod is horizontally suspended at the top of the shell through the first fixing frame, the end parts of the first connecting polished rod are respectively sleeved with the first tooth synchronizing wheels, two ends of each first tooth-shaped belt are tensioned through the two first tooth synchronizing wheels, and the first tooth-shaped belts are meshed with the first tooth synchronizing wheels, so that the first tooth-shaped belts are driven by the two first tooth synchronizing wheels to rotate circumferentially; an X-axis horizontal moving mechanism is installed between the two X-axis guide rail limiting blocks, and the length direction of the first connecting light rod is defined to be the X direction.
4. A small-sized integrated 3D printer for teaching and home use as claimed in claim 2, wherein: the Y-axis horizontal moving mechanism comprises a Y-axis stepping motor, a pair of Y-direction track assemblies which are used as Y-direction fixing parts and are arranged in parallel, and a pair of Y-direction track limiting blocks which are used as Y-direction moving parts and are respectively sleeved on the corresponding Y-direction track assemblies, and the Y-axis stepping motor is suspended on the Y-direction track assemblies through an end cover and is connected with a second synchronous gear of one set of Y-direction track assemblies; the Y-direction track assembly comprises a second connecting polished rod, a second fixing frame, a second synchronous gear and a second toothed belt, the second connecting polished rod is horizontally suspended at the top of the shell through the second fixing frame, the end part of the second connecting polished rod is respectively sleeved with the second synchronous gear and a second sleeve, the second connecting polished rod and the first connecting polished rod are connected in a staggered mode to form a rectangular structure horizontally suspended at the top of the shell, two ends of the second toothed belt are tensioned through the two second synchronous gears, and the second toothed belt is meshed with the second synchronous gears, so that the second toothed belt is driven by the two second synchronous gears to rotate circumferentially; a Y-direction guide rail limiting block is fixedly arranged on the second toothed belt, a first limiting polished rod is arranged between the two Y-direction guide rail limiting blocks serving as the Y-direction moving part, a sliding block used for installing a melting conveying module is assembled on the first limiting polished rod, the sliding block is sleeved on a second limiting polished rod, two end parts of the second limiting polished rod are fixedly connected with the Y-direction guide rail limiting blocks on the same side respectively, the second fixing frame is provided with two through hole parts, and the two through hole parts are provided with limiters; the length direction of the second connecting light rod is defined as Y direction.
5. A small-sized integrated 3D printer for teaching and home use as claimed in claim 1, wherein: the feeding unit comprises a first stepping motor and a wire rod conveying mechanism, the wire rod conveying mechanism is installed on the cross beam, the first stepping motor is fixedly connected with the wire rod conveying mechanism through a bolt, an output gear of the first stepping motor is meshed with a power input gear of the wire rod conveying mechanism and used for driving the power input gear on the wire rod conveying mechanism to rotate and convey the wire rods quantitatively, and the wire rods are conveyed to a heating block of the melting conveying module.
6. A small-sized integrated 3D printer for teaching and home use as claimed in claim 1, wherein: the melting and conveying unit comprises a first connecting ring, a heating block, a copper guide pipe, a spray head and a temperature detection block, wherein the heating block is fixedly arranged on a Y-direction moving part of the Y-axis horizontal moving mechanism and synchronously moves along with the Y-direction moving part; the heating block is sleeved outside the copper conduit, a first connecting ring is embedded at the upper part of the heating block, a temperature detection block is fixedly arranged at the lower part of the heating block, and a heating connecting end of the heating block is electrically connected with a corresponding signal connecting port of a heating circuit of the printing controller through a lead and is used for heating the copper conduit arranged in an inner cavity of the heating block; the upper end of the copper guide pipe is sleeved with a first connecting ring, the lower end of the copper guide pipe is communicated with a spray head to form a melting passage capable of melting and spraying the wire, and the spray head is aligned to the printing platform to spray the printing platform.
7. A small-sized integrated 3D printer for teaching and home use as claimed in claim 2, wherein: the Z-axis lifting device is respectively and symmetrically arranged on the outer sides of the upright posts on the two sides of the shell and comprises a polished rod fixing frame, a vertical guide rod, a fixing bolt, a sleeve, a motor fixing frame, a third stepping motor, a screw rod, a connecting ring and a coupler, wherein the third stepping motor is arranged on the motor fixing frame and is fixedly connected to the bottom of the shell frame through the fixing bolt, and an output shaft of the third stepping motor is fixedly connected with the lower end of the screw rod through the coupler; the upper end of the screw rod penetrates through a through hole on the polished rod fixing frame; the connecting ring is sleeved outside the screw rod, the screw rod and the connecting ring are in threaded connection to form a screw rod nut pair, and the connecting ring is fastened with the printing platform through a fixing bolt; the lower end of the vertical guide rod is sleeved with a sleeve and is fixedly connected with the motor fixing frame through a fastening bolt, and the upper end of the vertical guide rod penetrates out of the through hole of the polished rod fixing frame; the through hole of the thin plate part of the polish rod fixing frame is provided with a fixing bolt which is fixedly arranged at the upper end of the upright post of the shell and used for limiting the limit position in the Z-axis direction.
8. A small-sized integrated 3D printer for teaching and home use as claimed in claim 7, wherein: the printing platform comprises a plate body and a printing base, wherein the printing base is fixedly connected with the motor fixing frame, the plate body is fixedly connected with the printing base through a bolt, and the surface of the bolt is sleeved with a spring and is placed between the plate body and the base.
CN201910902427.3A 2019-09-24 2019-09-24 A small-size integration 3D printer for teaching and family Pending CN110712365A (en)

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CN110712365A true CN110712365A (en) 2020-01-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111231320A (en) * 2020-03-02 2020-06-05 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 Novel 3D print platform
CN111231314A (en) * 2020-02-25 2020-06-05 重庆工业职业技术学院 Multistation 3D printer
CN111284763A (en) * 2020-03-07 2020-06-16 杜藏恩 Hardware fitting blanking and packaging equipment with movable direction adjusting piece
CN113085168A (en) * 2021-03-28 2021-07-09 吉林大学 Electronic component 3D printing device and method based on selective electrodeposition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111231314A (en) * 2020-02-25 2020-06-05 重庆工业职业技术学院 Multistation 3D printer
CN111231314B (en) * 2020-02-25 2022-01-14 重庆工业职业技术学院 Multistation 3D printer
CN111231320A (en) * 2020-03-02 2020-06-05 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 Novel 3D print platform
CN111284763A (en) * 2020-03-07 2020-06-16 杜藏恩 Hardware fitting blanking and packaging equipment with movable direction adjusting piece
CN113085168A (en) * 2021-03-28 2021-07-09 吉林大学 Electronic component 3D printing device and method based on selective electrodeposition

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