CN207415984U - A kind of 3D printing device - Google Patents
A kind of 3D printing device Download PDFInfo
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- CN207415984U CN207415984U CN201721106837.XU CN201721106837U CN207415984U CN 207415984 U CN207415984 U CN 207415984U CN 201721106837 U CN201721106837 U CN 201721106837U CN 207415984 U CN207415984 U CN 207415984U
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Abstract
The utility model provides a kind of 3D printing device, wherein, described device includes printing head, Multi-shaft mechanical arm, temperature control system, workbench, cabinet and control unit；The printing head is movably arranged on by the Multi-shaft mechanical arm in the cabinet, and there are two the printing heads, is respectively metallic print nozzle and nonmetallic printing head；The temperature control system includes surface temperature control device, and the surface temperature control device is movably arranged on by the Multi-shaft mechanical arm in the cabinet；The workbench is arranged on the cabinet bottom；Described control unit is electrically connected respectively with the Multi-shaft mechanical arm and the temperature control system.A kind of 3D printing device provided by the utility model by setting temperature control system, reduces the temperature difference between printing head extruded material and target print position, adds printing combined strength bination, improve printing quality of item.
Description
Technical field
The utility model is related to 3D printing technique field more particularly to a kind of 3D printing devices.
Background technology
With the progress in epoch and the development of science and technology, the article of exquisite in workmanship, unique and non-volume production is increasingly subject to vast
Consumer groups are liked.Various we are required, want to print for 3D printer.3D printing technique, also known as increasing material manufacturing
Technology is designed a model as source with Computerized three-dimensional, is controlled by computer digit software program, molten using laser or heating
The modes such as melt by the successively accumulation molding of the materials such as metal or polymer, can be used for medical industry, scientific research, product model,
Architectural design, manufacturing industry and food etc., prospect is extensive.
Wherein, FDM (Fused Deposition Modeling) printing technique is the routine techniques of 3D printing technique field
Means.FDM printing techniques control heating nozzle makees X-Y plane movement, material is spraying according to the section profile information of product parts
Heating is fused into semi liquid state in head, squeezes out and coats on the table.The shaping of one layer cross section completes aftertable and declines certain height
Degree, then next layer of cladding is carried out, it so cycles, ultimately forms three-dimensional objects part.Based on above-mentioned principle, FDM printing techniques
Possess the advantages that formed precision is high, printer model hardness is good, multiple color, have been widely used.
However, during the actual job of FDM printing techniques, it is new due to squeezing out melted material construction in printing head
During one layer structure, molded last layer material has been basically completed curing, and surface temperature is reduced, can not achieve with new layer of material
It is good compound, cause Coating combination force difference, so often occurring what printout cracking even double-layer structure cannot be connected completely
Situation, therefore FDM 3D printing techniques and its quality of printing product still need to improve.
Utility model content
The utility model causes printing failure to solve the problems, such as that printing combined strength bination in the prior art is low, provides
A kind of 3D printing device.
The utility model proposes a kind of 3D printing device, including：Printing head, Multi-shaft mechanical arm, temperature control system, work are flat
Platform, cabinet and control unit；The printing head is movably arranged on by the Multi-shaft mechanical arm in the cabinet, the printing
There are two nozzles, is respectively metallic print nozzle and nonmetallic printing head；The temperature control system includes surface temperature control device, institute
Surface temperature control device is stated to be movably arranged in the cabinet by the Multi-shaft mechanical arm；The workbench is arranged on the machine
Bottom portion；Described control unit is electrically connected respectively with the Multi-shaft mechanical arm and the temperature control system.
Preferably, the interior installing liquid metal of the metallic print nozzle, it is Celsius 300 that the liquid metal includes fusing point
Metal or alloy below spending, the ingredient of the liquid metal include gallium, indium, tin, zinc, bismuth, lead, cadmium, mercury, sodium, potassium, magnesium, aluminium,
One or more in iron, cobalt, manganese, titanium, vanadium, boron, carbon and silicon, the liquid metal form include metal simple-substance, alloy and gold
One or more in the electrical-conductive nanometer fluid that metal nano-particle is mixed to form with fluid dispersion.
Preferably, installing nonmetallic materials in the nonmetallic printing head, the nonmetallic materials are organic polymer
Material and/or inorganic non-metallic material, the nonmetallic materials include ABS, PLA, PET, rubber, latex, silica gel, carbon fiber,
One or more in gypsum and ceramics.
Preferably, stepper motor is further included, the stepper motor is connected with the piston inside any printing head.
Preferably, the temperature control system further includes nozzle temperature control device, and the nozzle temperature control device is arranged on any described
On printing head, the nozzle temperature control device includes nozzle heating apparatus；It can also include nozzle refrigerating plant.
Preferably, the temperature control system further includes platform temperature control device, and the platform temperature control device is arranged on the work
On platform, the platform temperature control device includes platform heating device；It can also include platform refrigerating plant.
Preferably, the temperature control system further includes chassis temperature controlling device, and the chassis temperature controlling device is arranged on the cabinet
On, the chassis temperature controlling device includes cabinet heating apparatus；It can also include cabinet refrigerating plant.
Preferably, the temperature control system includes laser temperature control device, radio frequency temperature controller, ultrasonic wave temperature controller, semiconductor temperature-control
One or more in device and high-low pressure gas perfusion temperature controller.
Preferably, the temperature control system further includes nozzle temperature control device, platform temperature control device and chassis temperature controlling device, described
Temperature control system includes laser temperature control device, radio frequency temperature controller, ultrasonic wave temperature controller, semiconductor temperature-control device and high-low pressure gas perfusion temperature
Control the one or more in device；The nozzle temperature control device is arranged on any printing head, the nozzle temperature control device
Including nozzle heating apparatus and nozzle refrigerating plant；Piston inside any printing head is connected with stepper motor；It is described
Platform temperature control device is arranged on the workbench, and the platform temperature control device includes platform heating device and platform refrigeration dress
It puts；The chassis temperature controlling device is arranged on the cabinet, and the chassis temperature controlling device includes cabinet heating apparatus and cabinet system
Device for cooling.
A kind of 3D printing device provided by the utility model by setting temperature control system, reduces printing head extruded material
With the temperature difference between target print position, printing combined strength bination is added, improves printing quality of item.
Description of the drawings
Fig. 1 is a kind of structure diagram of 3D printing device of the utility model specific embodiment；
Fig. 2 is the printing head structure diagram of the utility model specific embodiment；
Reference sign：
1- printing heads；2- surfaces temperature control device；3- workbenches；
201- pistons；4- cabinets；5- Multi-shaft mechanical arms；
6- cabinet heating apparatus；7- cabinet refrigerating plants.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Fig. 1 is a kind of overall structure diagram of 3D printing device of the utility model specific embodiment, as shown in Figure 1,
A kind of 3D printing device, including：Printing head 1, Multi-shaft mechanical arm 5, temperature control system, workbench 3, cabinet 4 and control are single
Member；The printing head 1 is movably arranged on by the Multi-shaft mechanical arm 5 in the cabinet 4, and there are two the printing heads 1,
Respectively metallic print nozzle and nonmetallic printing head；The temperature control system includes surface temperature control device 2, the surface temperature control
Device 2 is movably arranged on by the Multi-shaft mechanical arm 5 in the cabinet 4；The workbench 3 is arranged on 4 bottom of cabinet
Portion；Described control unit is electrically connected respectively with the Multi-shaft mechanical arm 5 and the temperature control system.
Specifically, in order to solve the problems, such as that printing combined strength bination is low, the extruded material and target print of printing head are reduced
The temperature difference between position is, it is necessary to control the target print position temperature on the material that has printed.Due to printed material
It successively accumulates, the material printed below is due to heat dissipation of air etc., surface temperature and the extrusion of 1 extruded material of printing head
Temperature difference is larger, and traditional hott bed can not preferably realize the heating to upper layer of material.
For such case, in the utility model specific embodiment, the 3D printing device includes printing head 1, multiaxis
Mechanical arm 5, temperature control system, workbench 3, cabinet 4 and control unit.
Wherein, the cabinet 4 is used to isolate internal and external environment and disposes printing head 1, temperature control system and workbench 3 etc.
Device.In the utility model specific embodiment, in order to play the role of good temperature isolation, ensure that external environment does not interfere with
The normal operation of whole device, the cabinet 4 are made of temperature insulating material.
Further, the printing head 1 is movably arranged on by the Multi-shaft mechanical arm 5 in cabinet 4.Multi-shaft mechanical arm
5 are also known as multi-axis robot axis robot, are that by programming automatically control, repeatable, multivariant, freedom of motion
Degree builds up space right-angle relationship, multiduty operation machine.The behavior of its work is mainly completed along in X, Y, Z axis
Linear movement.
Compared with printing head in traditional 3D printing device, displacement and workbench upper and lower displacement form three in the plane
Dimension space realizes 3D printing, and Multi-shaft mechanical arm 5 is applied to a kind of 3D printing device of the utility model specific embodiment, and leads to
It crosses Multi-shaft mechanical arm 5 printing head 1 is movably arranged in the cabinet, any printing head 1 can be driven along X, Y, Z
Axis operation makes the successively stacking of printed material no longer be limited in gravity direction, but can be beaten in either direction
The stacking of material is printed, it is real by by printing objects surface measurement, path planning, control gap, meeting special technological requirement
The Material cladding printing of existing high intensity.
It is respectively metallic print nozzle and nonmetallic printing head in addition, there are two the printing heads 1, above-mentioned two
Printing head 1 can be used for the composite printing function of performing metal and nonmetallic materials.
Further, installing liquid metal material in the metallic print nozzle, is used to implement the printing of liquid metal.Institute
Stating liquid metal includes metal or alloy fusing point below 300 degrees Celsius, ingredient include gallium, indium, tin, zinc, bismuth, lead, cadmium,
One or more in mercury, sodium, potassium, magnesium, aluminium, iron, cobalt, manganese, titanium, vanadium, boron, carbon, silicon etc., form can be metal simple-substance,
The electrical-conductive nanometer fluid that alloy or metal nanoparticle are mixed to form with fluid dispersion, such as mercury, gallium, indium, tin list
Matter, gallium-indium alloy, gallium-indium-tin alloy, gallium tin alloy, gallium kirsite, gallium indium kirsite, gallium red brass, gallium indium red brass,
Gallium tin cadmium alloy, gallium Zn-Cd alloy, bismuth indium alloy, bismuth tin alloy, bismuth indium stannum alloy, bismuth indium kirsite, bismuth red brass, bismuth indium
One or more of red brass, leypewter, gun-metal, tin pltine, Tin Silver Copper Alloy, bismuth terne metal.
Installing nonmetallic materials, are used to implement nonmetallic printing in the nonmetallic printing head.The non-metallic material
Expect for high-molecular organic material and/or inorganic non-metallic material, the nonmetallic materials include ABS, PLA, PET, rubber, breast
One or more in glue, silica gel, carbon fiber, gypsum and ceramics.In the utility model specific embodiment, the nonmetallic materials
For ABS.
The temperature control system includes surface temperature control device 2, and the surface temperature control device 2 is lived by the Multi-shaft mechanical arm 5
It is dynamic to be arranged in the cabinet 4.Before any printing head 1 prints, surface temperature control device 2 is to printed material upper strata
Target print position is heated, and the surface temperature of printed material and the extrusion temperature of any printing head 1 are poor for reduction
Value when so that any printing head 1 is performed printing, can realize the good compound of upper layer of material and new layer of material.
Workbench 3 is arranged on 4 bottom of cabinet, for the bearing printing product during 3D printing.The work
Platform 3 is arranged in the print range of any printing head 1 and the heated perimeter of the surface temperature control device 2, Neng Goupei
Close 2 work compound of any printing head 1 and surface temperature control device.
Control unit is electrically connected respectively with the Multi-shaft mechanical arm 5 and temperature control system, for controlling the Multi-shaft mechanical arm 5
Printing head is driven to perform multivariant printing, and temperature control system is controlled to adjust temperature.
A kind of 3D printing device that the utility model specific embodiment provides by setting temperature control system, reduces printing spray
The temperature difference between the extruded material of head and target print position, adds printing combined strength bination, improves printing quality of item.
Based on above-mentioned specific embodiment, Fig. 2 is the printing head structure diagram of the utility model specific embodiment, is such as schemed
Shown in 2, a kind of 3D printing device further includes stepper motor, the stepper motor and the piston inside any printing head 1
201 connections.
Specifically, stepper motor is connected with the piston 201 set in printing head 1, the rotation forces piston of stepper motor
201 move downward, and the printed material of 1 internal reservoir of printing head is squeezed out at nozzle mouth.Stepper motor often rotates a list
Parallactic angle degree then promotes piston 201 to move down a unit distance, and printing head 1 is made to squeeze out the printed material of a unit quantity, and then
The extrusion capacity of printing head 1 is accurately controlled.
Such as the printed material capacity of printing head 1 is 1ml, then piston 201 moves down 2mm for 360 degree of stepper motor rotation.Together
When stepper motor be 64 subdivisions, umber of pulse 200, i.e. 64*200 pulse promotion piston 201 move down 2mm, each pulse promotion
Piston 201 moves down 0.00015625mm.The internal diameter of printing head 1 is 2.3mm, and the unit displacement distance of piston 201 is converted into
The extrusion capacity of printing head 1, it is known that the extrusion capacity of printed material is 0.002595406ml under a pulse, therefore stepper motor
Available for the extrusion capacity for accurately controlling any printing head 1.
Stepper motor is added in the utility model specific embodiment, for controlling printing head extrusion capacity, realizes and beats
The accurate control of material throughput is printed, improves 3D printing precision.
Based on any of the above-described specific embodiment, a kind of 3D printing device, the temperature control system further includes nozzle temperature control device,
The nozzle temperature control device is arranged on any printing head 1, and the nozzle temperature control device includes nozzle heating apparatus；Also
It can include nozzle refrigerating plant.
Specifically, printing head 1 is the critical component of 3D printing device, and the extrusion temperature for how controlling extruded material is direct
Affect the precision of 3D printing.Nozzle temperature control device on any printing head 1 is set, the nozzle temperature control device is controlled to make
Industry by extrusion temperature stabilization in certain temperature range, to ensure that printing precision disclosure satisfy that requirement.
The nozzle temperature control device is electrically connected with described control unit, and control unit is squeezed according to any printing head 1
The extrusion temperature for going out material is analyzed, and sends instructions to nozzle temperature control device, and the extrusion temperature of printing head 1 is adjusted
Control.
Further, the nozzle temperature control device includes nozzle heating apparatus, for heating and being fused into printed material
Semi liquid state provides condition for subsequent material from the extrusion of printing head 1.In addition, the nozzle temperature control device can also include nozzle
Refrigerating plant, the nozzle refrigerating plant are used to, when printing head 1 is heated and overshooted, cool down to the printing head 1, make
The extrusion temperature of printing head 1 is returned within the scope of certain temperature.
In the utility model specific embodiment, by setting nozzle temperature control device on printing head, realize to printing
The accurate control of the extrusion temperature of 1 extruded material of nozzle, improves 3D printing precision.
Based on any of the above-described specific embodiment, a kind of 3D printing device, described control unit is squeezed according to the printing head
Go out the extrusion temperature of material, the nozzle temperature control device operation is controlled using pid control algorithm.
Specifically, in order to realize the steady extruding of material, the line printed is continuous, do not break, not pilling and and other
The matching of temperature is, it is necessary to by the extrusion temperature stability contorting of printing head 1 in certain temperature range when Material cladding prints,
And according to different materials, set different temperature.
Wherein, control unit is on the basis of the default extrusion temperature scope of 1 extruded material of printing head, according to reality
Extrusion temperature, control the nozzle temperature control device operation using pid control algorithm, realize that stable extrusion temperature is adjusted.
In heating overshoot and temperature-rise period, control unit is regulated and controled by calculating the proportionate relationship of heating element and heated member,
After equalized temperature is reached, extraneous disturbance will not cause the fluctuation of the extrusion temperature of printing head 1 substantially.
In the utility model specific embodiment, control unit controls nozzle temperature control device using pid algorithm, constructs stabilization
Printing head 1 temperature control closed-loop system, realize the accurate control of the extrusion temperature to 1 extruded material of printing head.
Based on any of the above-described specific embodiment, a kind of 3D printing device, the temperature control system further includes platform temperature control device,
The platform temperature control device is arranged on the workbench, and the platform temperature control device includes platform heating device；It can also
Including platform refrigerating plant.
Specifically, in order to ensure that material is heated evenly, platform temperature control device is set on workbench 3, with the surface
The material temperature that 2 Collaborative Control of temperature control device has printed, to reduce the temperature of printed material and 1 extrusion temperature of printing head
Difference.The platform temperature control device is electrically connected with described control unit, control unit according to the material temperature that has printed and
Demand, control platform temperature control device adjust the temperature of workbench 3.
Wherein, platform temperature control device includes platform heating device, and the platform heating device helps to realize the equal of material
It is even heated, it is avoided to a certain extent since material uneven heating is even, product warpage especially caused by ABS material uneven heating
Problem.
In addition, the platform temperature control device can also include platform refrigerating plant, the platform refrigerating plant can make to beat
The material printed off cools rapidly, and the high-temperature material that printing head 1 newly squeezes out is avoided to melt the material of printing shaping.Example
Such as in metallic print nozzle carries out print procedure, platform refrigerating plant carries out the liquid metal material on workbench rapid
It cools, avoids the metal wire of the high temperature fluent metal material melts newly squeezed out printing shaping.
In the utility model specific embodiment, by setting platform temperature control device on workbench 3, realize work and put down
The accurate control of 3 temperature of platform, product warpage caused by avoiding uneven heating, improves 3D printing quality.
Based on any of the above-described specific embodiment, a kind of 3D printing device, the temperature control system further includes chassis temperature controlling device,
The chassis temperature controlling device is arranged on the cabinet, and the chassis temperature controlling device includes cabinet heating apparatus 6；It can also include
Cabinet refrigerating plant 7.
Specifically, the chassis temperature controlling device set on cabinet 5 is electrically connected with control unit, and control unit passes through controlling machine box
The regulation and control to box house environment temperature are realized in the operation of temperature control device.
Chassis temperature controlling device includes cabinet heating apparatus 6, with reference to 3D printing apparatus structure shown in FIG. 1, the utility model
Cabinet heating apparatus 6 is arranged on to the side of cabinet in specific embodiment, but not limited to this.The rise printing of cabinet heating apparatus 6
Environment temperature, and printing environment temperature stabilization is maintained at certain scope, reduce shadow of the variation to printing of ambient temperature
It rings.
Chassis temperature controlling device is on the basis of including cabinet heating apparatus 6, additionally it is possible to including cabinet refrigerating plant 7, reference
Cabinet refrigerating plant 7 is arranged on the top plate of cabinet in the utility model specific embodiment by Fig. 1, but not limited to this.The machine
Case refrigerating plant 7 carries out refrigerating operation, realizes the temperature of print space when ambient temperature is higher than the temperature for needing to set
Degree declines, and stablizes in certain temperature range.
The chassis temperature controlling device that the utility model specific embodiment provides, being capable of accurate printing environment temperature in controlling machine box
Degree, contributes to the raising of 3D printing quality of item.
Based on any of the above-described specific embodiment, a kind of 3D printing device, the temperature control system includes laser temperature control device, radio frequency
One or more in temperature controller, ultrasonic wave temperature controller, semiconductor temperature-control device and high-low pressure gas perfusion temperature controller.
Specifically, there are many realization methods of the temperature control system, such as laser, radio frequency, ultrasound, semiconductor refrigerating and height
Low-pressure gas perfusion etc..Wherein, belong to the infrared heating apparatus of laser temperature control device, can be realized and added by the heat radiation of infrared tube
Temperature operation, radio frequency temperature control device is then the quick rotation for causing material internal polar molecules by the electric field of quick alternation, friction
Heat generates fuel factor.
A variety of temperature control devices that the utility model specific embodiment provides so that the realization of temperature control system and application are cleverer
It is living.
Based on any of the above-described specific embodiment, a kind of 3D printing device, the temperature control system further include nozzle temperature control device,
Platform temperature control device and chassis temperature controlling device, the temperature control system include laser temperature control device, radio frequency temperature controller, ultrasonic wave temperature control
One or more in device, semiconductor temperature-control device and high-low pressure gas perfusion temperature controller；The nozzle temperature control device sets in office
On one printing head 1, the nozzle temperature control device includes nozzle heating apparatus and nozzle refrigerating plant；Any printing
Piston 201 inside nozzle 1 is connected with stepper motor；The platform temperature control device is arranged on the workbench 3, described flat
Platform temperature control device includes platform heating device and platform refrigerating plant；The chassis temperature controlling device is arranged on the cabinet 4, institute
Stating chassis temperature controlling device includes cabinet heating apparatus 6 and cabinet refrigerating plant 7.
Specifically, the utility model specific embodiment is used to implement liquid metal material and nonmetallic materials composite printing.
The 3D printing device includes two printing heads 1, is metallic print nozzle and nonmetallic printing head respectively,
Middle metallic print head loads liquid metal material, and nonmetallic printing head loads nonmetallic materials.Described two printing heads 1 are equal
Nozzle temperature control device is provided with, control unit is calculated according to the extrusion temperature of 1 extruded material of printing head using PID control
Method controls the nozzle temperature control device operation, controls closed-loop system with the temperature of the stable printing head 1 of structure, realizes printing spray
The accurate control of first 1 temperature, it is ensured that the extrusion temperature of printing head 1 is optimum temperature.
Meanwhile stepper motor is connected with the piston 201 set in printing head 1, stepper motor often rotates a unit angle
Degree, then promote piston 201 to move down a unit distance, and printing head 1 is made to squeeze out the printed material of a unit quantity, and then is fought each other
The extrusion capacity of print nozzle 1 is accurately controlled.
In addition, described two printing heads 1 are connected with Multi-shaft mechanical arm 5, control unit is driven by Multi-shaft mechanical arm 5
Printing head 1 completes multivariant printing, realizes the stacking of the printed material of either direction.
At the same time, the platform temperature control device set on the workbench 3 in the cabinet 4, including platform heating
Device and platform refrigerating plant, ensure that the thermally equivalent of material, and the regulation and control of the material temperature to have printed provide effectively
Technical solution.
After the completion of any 1 operation of printing head, before another 1 operation of printing head starts, this sentences non-gold
After the completion of belonging to printing head operation, exemplified by metallic print nozzle is when will start operation.The nozzle temperature control device, platform temperature control
The nozzle temperature control device heating of device, surface temperature control device 2 and chassis temperature controlling device coordinative operation, at this time metallic print nozzle,
Make the extrusion temperature stabilization of metallic print nozzle in optimum temperature；Chassis temperature controlling device work compound maintains printing environment temperature；
Platform temperature control device operation simultaneously, for the nonmetallic materials heating printed；In order to avoid platform temperature control device is to having beaten
The nonmetallic materials upper strata temperature control dynamics deficiency of print, 2 work compound of surface temperature control device, to the target print of metallic print nozzle
Position is heated, and reduces the temperature difference between metallic print nozzle extruded material and target print position.
After each part mentioned above temperature stabilization, metallic print nozzle carries out one layer of print job under the drive of Multi-shaft mechanical arm 5,
Liquid metal material is more securely combined in the nonmetallic materials printed.
The utility model specific embodiment provides the technical solution of liquid metal material and nonmetallic materials composite printing,
Printing combined strength bination is added, improves printing quality of item.
In FDM 3D printing technique operation process, printout cracking even double-layer structure often occur cannot be connected completely
Connect and print ABS thin slices warpage, the situation of deformation.This is because squeezing out melted material in printing head constructs a new layer structure
When, molded last layer material has been basically completed curing, and surface temperature reduces, and can not achieve with new layer of material good multiple
It closes, caused by causing Coating combination force difference or material uneven heating.Solve that printing combined strength bination is low, product warpage asks
For topic, it is necessary to reduce the temperature difference between printing head and target print position, guarantee prints product thermally equivalent.Based on the above situation,
The utility model provides a kind of 3D printing device.
In order to better understand with application the utility model proposes a kind of 3D printing device, the utility model carries out following
Example, and the utility model is not only limited to the example below.
Reference chart Isosorbide-5-Nitrae is the cabinet of the 3D printing device, and 4 bottom surface of cabinet is provided with workbench 3, and side sets organic
Case heating apparatus 6, top are provided with cabinet refrigerating plant 7, metallic print nozzle, nonmetallic printing head and surface temperature control device
It is movably arranged on by Multi-shaft mechanical arm 5 in cabinet 4.Wherein described metallic print nozzle is used for print liquid metal material, non-
Metallic print nozzle is used to print nonmetallic materials.Be respectively arranged in the metallic print nozzle and nonmetallic printing head with
The piston 201 of stepper motor connection, for accurately controlling the extrusion capacity of printed material.
Platform temperature control device is provided on the workbench 3.Platform temperature control device includes platform heating device and platform
Refrigerating plant.The metallic print nozzle and nonmetallic printing head are both provided with nozzle temperature control device, the nozzle temperature control dress
It puts including nozzle heating apparatus and nozzle refrigerating plant.
After the 3D printing device starts work, it is pre- first to confirm whether cabinet inside temperature reaches first for control unit first
If temperature, being not reaching to the first preset temperature, then cabinet heating apparatus 6 provides heating, once temperature is more than the first default temperature
Degree, cabinet refrigerating plant 7 can make in cabinet 4 printing environment temperature stabilization in the first preset temperature, deviation to cooling down in case
No more than 1 degree.
After ensureing that the temperature inside the box reaches the first preset temperature, control unit is to the platform temperature being arranged on workbench 3
Control device sends instruction, and platform heating device starts to heat workbench 3, once it is excessively high 3 temperature of workbench occur
When, control unit meeting quick response closes platform heating device, opens platform refrigerating plant, ensures that the temperature of workbench 3 can
Quickly to drop back to the second preset temperature.Second preset temperature can accordingly be adjusted according to unlike material, to ensure to beat
The optimization of India and China's print quality.Platform function of temperature control can keep 3 surface temperature stabilization of workbench default second after opening
Temperature, until control unit sends the temperature control of instruction power cut-off platform 3.
When workbench temperature reaches claimed range, control unit starts metallic print nozzle and nonmetallic printing head
The nozzle temperature control device of middle setting is heated to corresponding printing head.
If the printed material selected first for it is nonmetallic when, nozzle temperature control from control unit to nonmetallic printing head fill
Transmission instruction is put, and the nozzle temperature control device operation is controlled using pid control algorithm.Specifically, nozzle heating apparatus is controlled
Nonmetallic printing head is heated, when nonmetallic printing head is heated and overshooted, control unit controls nozzle refrigerating plant to non-
Metallic print nozzle cools down, and the extrusion temperature of nonmetallic printing head is made to be returned to nonmetallic preset temperature, nonmetallic pre-
If temperature can reach 200 degree or so, deviation is not more than 1 degree.
Nonmetallic printing head extrusion temperature stabilization after nonmetallic preset temperature, printing perform before, control
Unit obtains the target print position temperature of nonmetallic printing head, by target print position temperature compared with the 4th preset temperature
Compared with if target print position temperature is relatively low, control unit sends instructions to surface temperature control device 2, and surface temperature control device 2 is right
Target print position is heated, and the temperature of the target print position of nonmetallic printing head on the material printed is made to reach the 4th in advance
If temperature.
After the temperature of target print position reaches the 4th preset temperature, Multi-shaft mechanical arm 5 starts to perform zero bit manipulation, returns
After the completion of zero-bit, stepper motor rotates, and drives and pushes away nonmetallic printed material under the piston 201 in nonmetallic printing head, performs
The extrusion operation of accurate quantification, while Multi-shaft mechanical arm 5 is moved according to the motion planning path in system, until to meeting the tendency of
Dynamic rail mark is fully completed, and the nozzle temperature control device of subsequent nonmetallic printing head stops to nonmetallic printing head into trip temperature control
System.
After nonmetal structure part has been printed, nozzle temperature control device transmission of the control unit to metallic print nozzle refers to
Order, and control the nozzle temperature control device operation using pid control algorithm.Specifically, control nozzle heating apparatus beats metal
Print nozzle heating, metallic print nozzle heat overshoot when, control unit control nozzle refrigerating plant to metallic print nozzle into
Row cooling, makes the extrusion temperature of metallic print nozzle be returned to metal preset temperature, the metal preset temperature can reach 200 degree
Left and right, deviation are not more than 2 degree.
Metallic print nozzle extrusion temperature stabilization after metal preset temperature, printing perform before, control unit
The target print position temperature of metallic print nozzle is obtained, target print position temperature is compared with the 4th preset temperature, such as
Fruit target print position temperature is relatively low, then control unit sends instructions to surface temperature control device 2, and surface temperature control device 2 is to target
The nonmetallic materials of print position are heated, and make the target print position of metallic print nozzle in the nonmetallic materials printed
Temperature reach the 4th preset temperature.
After the temperature of target print position reaches the 4th preset temperature, Multi-shaft mechanical arm 5 starts to perform zero bit manipulation, returns
After the completion of zero-bit, stepper motor rotates, and drives and liquid metal material is pushed away under the piston 201 in metallic print nozzle, performs accurate
Quantitative extrusion operation, while Multi-shaft mechanical arm 5 is moved according to the motion planning path in system, until corresponding movement rail
Mark is fully completed, and the nozzle temperature control device of subsequent metallic print nozzle stops controlling metallic print nozzle into trip temperature.
In the utility model specific embodiment, nozzle temperature control device, 2 peace of surface temperature control device are regulated and controled by control unit
Platform temperature control device reduces the temperature difference between printing head and target print position, adds printing combined strength bination, improves printing system
Quality.
Finally, the device of the application is only preferable embodiment, is not intended to limit the scope of protection of the utility model.
Within the spirit and principle of the utility model, any modifications, equivalent replacements and improvements are made should be included in this reality
Within new protection domain.
Claims (9)
1. a kind of 3D printing device, which is characterized in that including：Printing head, Multi-shaft mechanical arm, temperature control system, workbench, machine
Case and control unit；
The printing head is movably arranged on by the Multi-shaft mechanical arm in the cabinet, and there are two the printing heads, point
It Wei not metallic print nozzle and nonmetallic printing head；
The temperature control system includes surface temperature control device, and the surface temperature control device is movably arranged on by the Multi-shaft mechanical arm
In the cabinet；
The workbench is arranged on the cabinet bottom；
Described control unit is electrically connected respectively with the Multi-shaft mechanical arm and the temperature control system.
2. 3D printing device according to claim 1, which is characterized in that installing liquid gold in the metallic print nozzle
Belong to, the liquid metal includes metal or alloy fusing point below 300 degrees Celsius.
3. 3D printing device according to claim 1, which is characterized in that installing is nonmetallic in the nonmetallic printing head
Material, the nonmetallic materials are high-molecular organic material and/or inorganic non-metallic material.
4. 3D printing device according to claim 1, which is characterized in that further include stepper motor, the stepper motor with
Piston connection inside any printing head.
5. 3D printing device according to claim 1, which is characterized in that the temperature control system further includes nozzle temperature control dress
It puts, the nozzle temperature control device is arranged on any printing head, and the nozzle temperature control device includes nozzle heating apparatus；
It can also include nozzle refrigerating plant.
6. 3D printing device according to claim 1, which is characterized in that the temperature control system further includes platform temperature control dress
It puts, the platform temperature control device is arranged on the workbench, and the platform temperature control device includes platform heating device；It can also
Enough include platform refrigerating plant.
7. 3D printing device according to claim 1, which is characterized in that the temperature control system further includes cabinet temperature control dress
It puts, the chassis temperature controlling device is arranged on the cabinet, and the chassis temperature controlling device includes cabinet heating apparatus；It can also wrap
Include cabinet refrigerating plant.
8. the 3D printing device according to any claim in claim 1 to 7, which is characterized in that the temperature control system
It is perfused including laser temperature control device, radio frequency temperature controller, ultrasonic wave temperature controller, semiconductor temperature-control device and high-low pressure gas in temperature controller
It is one or more.
9. 3D printing device according to claim 2, which is characterized in that
The temperature control system further includes nozzle temperature control device, platform temperature control device and chassis temperature controlling device, the temperature control system bag
Include one in laser temperature control device, radio frequency temperature controller, ultrasonic wave temperature controller, semiconductor temperature-control device and high-low pressure gas perfusion temperature controller
Kind is a variety of；
The nozzle temperature control device is arranged on any printing head, and the nozzle temperature control device includes nozzle heating apparatus
With nozzle refrigerating plant；Piston inside any printing head is connected with stepper motor；
The platform temperature control device is arranged on the workbench, and the platform temperature control device includes platform heating device peace
Platform refrigerating plant；
The chassis temperature controlling device is arranged on the cabinet, and the chassis temperature controlling device includes cabinet heating apparatus and cabinet system
Device for cooling.
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| CN201721106837.XU CN207415984U (en) | 2017-08-31 | 2017-08-31 | A kind of 3D printing device |
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| CN201721106837.XU CN207415984U (en) | 2017-08-31 | 2017-08-31 | A kind of 3D printing device |
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| CN207415984U true CN207415984U (en) | 2018-05-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471630A (en) * | 2017-08-31 | 2017-12-15 | 北京梦之墨科技有限公司 | A kind of 3D printing apparatus and method |
| CN109402372A (en) * | 2018-08-29 | 2019-03-01 | 中国人民解放军空军工程大学 | A kind of quick coating unit of absorption protective layer and method based on 3D printing technique |
| CN111086212A (en) * | 2019-12-25 | 2020-05-01 | 杭州喜马拉雅信息科技有限公司 | Compound 3D beats printer head |
| CN113474170A (en) * | 2019-03-08 | 2021-10-01 | 株式会社理光 | Device configured to model a three-dimensional modeled object, device configured to fly particles, and method of modeling a three-dimensional modeled object |
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2017
- 2017-08-31 CN CN201721106837.XU patent/CN207415984U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471630A (en) * | 2017-08-31 | 2017-12-15 | 北京梦之墨科技有限公司 | A kind of 3D printing apparatus and method |
| CN109402372A (en) * | 2018-08-29 | 2019-03-01 | 中国人民解放军空军工程大学 | A kind of quick coating unit of absorption protective layer and method based on 3D printing technique |
| CN113474170A (en) * | 2019-03-08 | 2021-10-01 | 株式会社理光 | Device configured to model a three-dimensional modeled object, device configured to fly particles, and method of modeling a three-dimensional modeled object |
| CN111086212A (en) * | 2019-12-25 | 2020-05-01 | 杭州喜马拉雅信息科技有限公司 | Compound 3D beats printer head |
| CN111086212B (en) * | 2019-12-25 | 2021-11-23 | 杭州喜马拉雅信息科技有限公司 | Compound 3D beats printer head |
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