CN207415983U - 3D printer hott bed and 3D printer - Google Patents
3D printer hott bed and 3D printer Download PDFInfo
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- CN207415983U CN207415983U CN201721067056.4U CN201721067056U CN207415983U CN 207415983 U CN207415983 U CN 207415983U CN 201721067056 U CN201721067056 U CN 201721067056U CN 207415983 U CN207415983 U CN 207415983U
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Abstract
The utility model provides a kind of 3D printer hott bed and 3D printer, wherein, 3D printer hott bed, including：Substrate；Multiple heating modules, stagger setting is on substrate, to be heated to the different zones of substrate；Drive module is electrically connected with multiple heating modules, is heated with respectively driving each heating module according to the drive signal received；Controller is connected with drive module by signal wire or wireless communication unit, to transmit drive signal to drive module.By the technical solution of the utility model, can heating region be adjusted flexibly according to the shape in actual initial print region, and heating power is adjusted according to the temperature feedback of print area in time, the temperature equalization on hott bed surface and temperature controlled flexibility are improved, meanwhile, save energy consumption.
Description
Technical field
The utility model is related to 3D printing technique fields, are beaten in particular to a kind of 3D printer hott bed and a kind of 3D
Print machine.
Background technology
Hott bed is the main function components of fusion sediment method (Fused Deposition Modeling-FDM) 3D printer
One of, it is both the physical platform of carrying print object and the effective object of embryo deposit effect.In order to which 3D printer is allowed to squeeze out
The high-temperature molten mass-energy that head spues forms thin and smooth initial print face on hott bed and ensures the printing surface and hott bed table
Face is securely binded, and 3D printer is generally controlled for hott bed using heated at constant temperature, this is because high-temperature molten-state 3D printing substance
As directly spued to the print platform of low temperature cold conditions, not only cannot reliably bind, the change dramatically of temperature still results in initially
Buckling deformation occurs for printing surface, so as to influence the normal startup of print routine.
In correlation technique, in 3D printer the heated at constant temperature of hott bed generally using electrothermal tube, heating wire as heater element,
It is heated hott bed as an entirety, and thermostatic control is realized as feedback element using thermo-sensitive resistor or thermocouple, deposited
In following technological deficiency：
(1) temperature is unbalanced, due to the installation point very little of thermo-sensitive resistor, thermocouple, and the area of plane of hott bed and transverse direction
Thermal resistance is very big so that Regulation of Constant Temperature is only fed back using partial points temperature as control, causes hott bed surface temperature distribution uneven.
(2) energy consumption is big, even if the initial print face type of print object is smaller, also hott bed is integrally heated, causes to heat
Energy consumption is big.
(3) temperature control very flexible, hott bed different zones are according to whether there is its different heat sink strip of the factors such as printed matter
Part is also different, and single heating element can not be directed to local temperature deviation, local heating power is adjusted.Particularly when temperature sensitive
When resistance, the installation of TC point are located at outside initial print region, initial print face will be caused to cannot get effective temperature feedback, into
And influence 3D printing effect.
Utility model content
The utility model is intended at least solve one of technical problem present in the prior art or correlation technique.
For this purpose, one of the utility model is designed to provide a kind of 3D printer hott bed.
Another of the utility model is designed to provide a kind of 3D printer.
To achieve these goals, the technical solution of the first aspect of the utility model provides a kind of 3D printer heat
Bed, including：Substrate；Multiple heating modules, stagger setting is on substrate, to be heated to the different zones of substrate；Drive module, with
Multiple heating modules are electrically connected, and are heated with respectively driving each heating module according to the drive signal received；Controller,
It is connected with drive module by signal wire or wireless communication unit, to transmit drive signal to drive module.
In the technical scheme, multiple heating modules by stagger setting on substrate, can realize to substrate not
It with the heating in region, is advantageously implemented and heating region is adjusted flexibly, pass through the driving mould being electrically connected with each heating module
Block respectively drives each heating module according to the drive signal received and heats, and each heating module can independent control and tune
Section, is advantageously implemented and heating region is adjusted flexibly, and improves the specific aim of 3D printer hott bed heating, is improving hott bed surface work
While making the temperature equalization in region, energy consumption is also saved, by passing through signal wire or wireless communication unit with drive module
The controller of connection transmits drive signal to drive module, to realize shape and the printing according to actual initial print region
The temperature feedback in region adjusts heating power in time, further improves the temperature equalization on hott bed surface and temperature controlled spirit
Activity, and then 3D printing effect is improved, meanwhile, save energy consumption.
In the above-mentioned technical solutions, it is preferable that heating module, including：Heating resistance element, one end of heating resistance element
Be connected to the designated position of substrate, to access power supply, the other end of heating resistance element is extended to outside the edge of substrate, with drive
Dynamic model block is electrically connected.
In the technical scheme, heat is generated by heated mould heating resistance element in the block, realizes 3D printer heat
The heating of bed, wherein, one end of heating resistance element is connected to the designated position of substrate, to access power supply, heating resistance element
The other end extend to outside the edge of substrate, to be electrically connected with drive module, power supply can be provided to heating resistance element, and real
Now to the computer heating control of heating resistance element.
Wherein, a heating module can set a heating resistance element, can also set the heating electricity of multiple series connection
Resistance element, different heated moulds heating resistance element in the block is unrelated, can realize the control respectively of different heating modules
System.
In any of the above-described technical solution, it is preferable that heating module, including：Resistive film, resistive film are laid on substrate
On, the periphery of resistive film is equipped with insulating layer, and one end of resistive film is connected to the designated position of substrate, to access power supply, resistive film
The other end extend to outside the edge of substrate, to be electrically connected with drive module.
In the technical scheme, heat is generated by the heated mould resistive film in the block being laid on substrate, realizes 3D
The heating of printer hott bed, wherein, the periphery of resistive film is equipped with insulating layer so that the resistive film of different heating module is mutually not related to
Connection can realize the independent control of different heating module, and the designated position of substrate is connected to by one end of resistive film, with access
Power supply, the other end of resistive film is extended to outside the edge of substrate, to be electrically connected with drive module, can provide electricity to resistive film
Source, and realize the computer heating control to resistive film.
Specifically, insulating layer is prepared on substrate, then makes resistive film by the way of vapor deposition, corrosion, resistive film
High-resistivity alloy, such as nickel-cadmium, Aludirome can be used in material.
In any of the above-described technical solution, it is preferable that multiple heating modules are set on substrate in array distribution.
In the technical scheme, set by multiple heating modules on substrate in array distribution, be conducive to further carry
The temperature equalization on high 3D printer hott bed surface, is advantageously implemented and heating region is adjusted flexibly.
Wherein, the density of array distribution is bigger, is partitioned into that the heating region with temperature independent control ability is smaller, and 3D is beaten
The Temperature Distribution control on print machine hott bed surface is more flexible.
In addition, multiple heating modules can also be adjusted according to the concrete shape of 3D printer hott bed working face.
In any of the above-described technical solution, it is preferable that drive module, including：Multiple switch unit, with multiple heated moulds
Block corresponds electrical connection；Driving unit is electrically connected with multiple switch unit, with according to drive signal, control is every respectively
The conducting and cut-off of a switch unit, driving unit, including：Data sink is electrically connected with the controller, to receive driving letter
Number, and generate numerical signal；Address decoder is electrically connected with the controller, and to receive drive signal, and generates channel selecting letter
Number；Multiple data registers are connected respectively with address decoder, data sink, are corresponded to being write according to channel selecting signal
Numerical signal；Multiple signal generators connect one to one with multiple data registers, and multiple signal generators are opened with multiple
It closes unit to connect one to one, to generate pulse signal according to numerical signal, and is delivered to the switch unit being correspondingly connected with.
In the technical scheme, the multiple switch unit being electrically connected with multiple heating modules one-to-one corresponding, Ke Yishi are passed through
It now to the control respectively of multiple heating modules, is advantageously implemented and heating region is adjusted flexibly, by distinguishing with multiple switch unit
The driving unit of electrical connection according to drive signal, can control the conducting and cut-off of each switch unit respectively, can be according to beating
The temperature feedback in print region adjusts the heating power of each heating module respectively, further improves the temperature equalization on hott bed surface
With temperature controlled flexibility, while reduce unnecessary energy consumption, by the data sink being electrically connected with the controller,
Drive signal is received, and generates numerical signal, by the address decoder being electrically connected with the controller, receiving drive signal,
And channel selecting signal is generated, the parsing to drive signal is realized, is advantageously implemented the corresponding heating module of control with correspondence
Heating power heating, by the multiple data registers being connected respectively with address decoder, data sink, selected according to passage
It selects signal and writes corresponding numerical signal, then occurred by the multiple signals to connect one to one with multiple data registers
Numerical signal is converted into pulse signal, and is transported to the switch unit being correspondingly connected with by device, realizes the corresponding heated mould of control
Block is heated with corresponding heating power, is adjusted heating power in time according to the temperature feedback of print area, is further improved heat
The temperature equalization on bed surface and temperature controlled flexibility, while reduce the heating energy consumption of non-print area.
Specifically, drive signal includes coded address and duty cycle numerical value, and each switch unit has uniquely
Drive signal is parsed and identified by coded address, data sink and address decoder, and is transported to corresponding to the logical of coded address
In road.
In any of the above-described technical solution, it is preferable that switch unit is N-channel enhanced power field-effect tube and/or P
Channel depletion type power field effect pipe.
In the technical scheme, N-channel enhanced power field-effect tube and/or P-channel depletion type power field effect are passed through
Pipe can be realized through the duty cycle of the pulse signal of control input to switch unit to adjust heating work(as switch unit
Rate is advantageously implemented and adjusts heating power in time according to the temperature feedback of print area, improves the temperature equalization on hott bed surface
Property and temperature controlled flexibility.
Wherein, when using N-channel enhanced power field-effect tube, heating module common-anode, N-channel enhanced power field
Effect pipe and the cathode of each heating module connect one to one, when using P-channel depletion type power field effect pipe, heating
Module common cathode, P-channel depletion type power field effect pipe and the anode of each heating module connect one to one.
In any of the above-described technical solution, it is preferable that further include：Current acquisition module is connected in series in substrate and electricity
Between source, current acquisition module is connected with controller, and controller is input to the total current signal for gathering multiple heating modules.
In the technical scheme, by the current acquisition module being connected in series between substrate and power supply, acquisition is multiple to be added
The total current signal of thermal modules is realized the temperature feedback of print area to controller, is conducive to controller and adjusts heating in time
Power further improves the temperature equalization on hott bed surface and temperature controlled flexibility.
Specifically, according to supply voltage and the total current signal of multiple heating modules, it may be determined that in heated condition
Then the resistance value of heating module can determine temperature, then by temperature with setting according to the resistance v. temperature change curve to prestore
Fixed temperature value is compared, and generates corresponding drive signal, is realized and is adjusted heating in time according to the temperature feedback of print area
Power, while printing effect is improved, to reduce printing energy consumption.
In any of the above-described technical solution, it is preferable that current acquisition module is current transformer and/or current sample electricity
Resistance.
In the technical scheme, current acquisition module, a side are used as by current transformer and/or current sampling resistor
Face sets simplicity, and occupied space is smaller, and on the other hand, current signal acquisition accuracy rate is higher.
In any of the above-described technical solution, it is preferable that substrate is aluminum substrate, aluminium alloy base plate or glass substrate；Signal
Line is RS485 buses or RS232 buses；Wireless communication unit is Wi-Fi units and/or bluetooth unit and/or NFC unit.
In the technical scheme, substrate is used as by aluminum substrate, aluminium alloy base plate or glass substrate, heat conductivility is preferable,
Save energy consumption, signal wire be used as by RS485 buses or RS232 buses, by Wi-Fi units and/or bluetooth unit and/or
For NFC unit as wireless communication unit, signal transmission effect is preferable, is advantageously implemented from controller to drive module and transmits driving
Signal.
The technical solution of the second aspect of the utility model provides a kind of 3D printer, including：Above-mentioned the utility model
First aspect technical solution propose any one 3D printer hott bed.
In the technical scheme, 3D printer includes the technical solution proposition of the first aspect of above-mentioned the utility model
The 3D printer hott bed of any one, thus with it is above-mentioned the utility model proposes the whole of 3D printer hott bed of any one have
Beneficial effect, details are not described herein.
The additional aspect and advantage of the utility model will provide in following description section, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 shows the structure diagram of the 3D printer hott bed of one embodiment according to the present utility model；
Fig. 2 shows the structure diagram of the 3D printer hott bed of another embodiment according to the present utility model；
Fig. 3 shows the structural representation of the drive module of the 3D printer hott bed of one embodiment according to the present utility model
Figure；
Fig. 4 shows the structure diagram of the driving unit in Fig. 3,
Wherein, the correspondence in Fig. 1 to Fig. 4 between reference numeral and component is：
102 substrates, 104 heating modules, 106 drive modules, 1062 switch units, 1064 driving units, 1065 data connect
Receipts device, 1066 address decoders, 1067 data registers, 1068 signal generators, 108 controllers, 110 current acquisition modules,
112 power supplys.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be implemented using other different from other modes described here, therefore, the scope of protection of the utility model is simultaneously
From the limitation of following public specific embodiment.
Embodiment 1
As shown in Figure 1 to Figure 3, the embodiment of the first aspect of the utility model of embodiment according to the present utility model
A kind of 3D printer hott bed is provided, including：Substrate 102；Multiple heating modules 104, stagger setting is on substrate 102, with right
The different zones heating of substrate 102；Drive module 106 is electrically connected with multiple heating modules 104, is received with basis
Drive signal respectively drives each heating module 104 and heats；Controller 108 passes through signal wire or channel radio with drive module 106
Unit connection is interrogated, to transmit drive signal to drive module 106.
In this embodiment, multiple heating modules 104 by stagger setting on substrate 102, can realize to substrate
The heating of 102 different zones, is advantageously implemented and heating region is adjusted flexibly, by being electrically connected respectively with each heating module 104
The drive module 106 connect respectively drives each heating module 104 according to the drive signal received and heats, each heating module
104 can independent control and adjusting, be advantageously implemented and heating region be adjusted flexibly, improve 3D printer hott bed heating be directed to
Property, while the temperature equalization of hott bed surface working region is improved, energy consumption is also saved, by logical with drive module 106
Signal wire or the controller 108 of wireless communication unit connection are crossed, drive signal is transmitted to drive module 106, to realize according to reality
The shape in border initial print region and the temperature feedback of print area adjust heating power in time, further improve hott bed
The temperature equalization on surface and temperature controlled flexibility, and then 3D printing effect is improved, meanwhile, save energy consumption.
Embodiment 2
Heating module 104, including：Heating resistance element, one end of heating resistance element are connected to the specific bit of substrate 102
It puts, to access power supply 112, the other end of heating resistance element is extended to outside the edge of substrate 102, with electric with drive module 106
Connection.
In this embodiment, heat is generated by the heating resistance element in heating module 104, realizes 3D printer heat
The heating of bed, wherein, one end of heating resistance element is connected to the designated position of substrate 102, to access power supply 112, heating electricity
The other end of resistance element is extended to outside the edge of substrate 102, can be to heating resistance element to be electrically connected with drive module 106
Power supply 112 is provided, and realizes the computer heating control to heating resistance element.
Wherein, a heating module 104 can set a heating resistance element, can also set the heating of multiple series connection
Resistive element, the heating resistance element in different heating modules 104 is unrelated, can realize different heating modules 104
Control respectively.
Embodiment 3
Heating module 104, including：Resistive film, resistive film are laid on substrate 102, and the periphery of resistive film is equipped with insulation
Layer, one end of resistive film are connected to the designated position of substrate 102, and to access power supply 112, the other end of resistive film extends to substrate
Outside 102 edge, to be electrically connected with drive module 106.
In this embodiment, heat is generated by the resistive film of laying on substrate 102 in heating module 104, it is real
The heating of existing 3D printer hott bed, wherein, the periphery of resistive film is equipped with insulating layer so that the resistive film of different heating module 104
It is unrelated, it can realize the independent control of different heating module 104, the finger of substrate 102 is connected to by one end of resistive film
Positioning is put, and to access power supply 112, the other end of resistive film is extended to outside the edge of substrate 102, to be electrically connected with drive module 106
It connects, power supply 112 can be provided resistive film, and realizes the computer heating control to resistive film.
Specifically, insulating layer is prepared on substrate 102, then makes resistive film, resistive film by the way of vapor deposition, corrosion
Material high-resistivity alloy, such as nickel-cadmium, Aludirome can be used.
As shown in Figure 1 to Figure 3, in any of the above-described embodiment, it is preferable that multiple heating modules 104 are on substrate 102
It is set in array distribution.
In this embodiment, set, be conducive into one in array distribution on substrate 102 by multiple heating modules 104
Step improves the temperature equalization on 3D printer hott bed surface, is advantageously implemented and heating region is adjusted flexibly.
Wherein, the density of array distribution is bigger, is partitioned into that the heating region with temperature independent control ability is smaller, and 3D is beaten
The Temperature Distribution control on print machine hott bed surface is more flexible.
In addition, multiple heating modules 104 can also be adjusted according to the concrete shape of 3D printer hott bed working face.
As shown in Figure 3 and Figure 4, in any of the above-described embodiment, it is preferable that drive module 106, including：Multiple switch
Unit 1062 is electrically connected with multiple heating modules 104 one-to-one corresponding；Driving unit 1064 is distinguished with multiple switch unit 1062
Electrical connection, according to drive signal, to control the conducting and cut-off of each switch unit 1062 respectively, driving unit 1064, including：
Data sink 1065 is electrically connected with controller 108, to receive drive signal, and generates numerical signal；Address decoder
1066, it is electrically connected with controller 108, to receive drive signal, and generates channel selecting signal；Multiple data registers 1067,
It is connected respectively with address decoder 1066, data sink 1065, to write corresponding numerical signal according to channel selecting signal；
Multiple signal generators 1068 connect one to one with multiple data registers 1067, multiple signal generators 1068 with it is multiple
Switch unit 1062 connects one to one, and to generate pulse signal according to numerical signal, and is delivered to the switch list being correspondingly connected with
Member 1062.
It in this embodiment, can by the multiple switch unit 1062 being electrically connected with multiple heating modules 104 one-to-one corresponding
To realize control respectively to multiple heating modules 104, be advantageously implemented and heating region be adjusted flexibly, by with multiple switch list
The driving unit 1064 that member 1062 is electrically connected, can control leading for each switch unit 1062 respectively according to drive signal
Logical and cut-off, can adjust the heating power of each heating module 104 respectively according to the temperature feedback of print area, further carry
The temperature equalization on high hott bed surface and temperature controlled flexibility, while reduce unnecessary energy consumption, by with control
The data sink 1065 that device 108 processed is electrically connected, to receive drive signal, and generates numerical signal, by electric with controller 108
The address decoder 1066 of connection to receive drive signal, and generates channel selecting signal, realizes the solution to drive signal
Analysis is advantageously implemented the corresponding heating module 104 of control and is heated with corresponding heating power, by respectively with address decoder
1066th, multiple data registers 1067 that data sink 1065 connects write corresponding numerical value according to channel selecting signal and believe
Number, then by the multiple signal generators 1068 to connect one to one with multiple data registers 1067, numerical signal is turned
It changes pulse signal into, and is transported to the switch unit 1062 being correspondingly connected with, realize the corresponding heating module 104 of control with correspondence
Heating power heating, heating power is adjusted according to the temperature feedback of print area in time, further improves hott bed surface
Temperature equalization and temperature controlled flexibility, while reduce the heating energy consumption of non-print area.
Specifically, drive signal includes coded address and duty cycle numerical value, and each switch unit 1062 has only
Drive signal is parsed and identified, and is transported to and correspond to by one coded address, data sink 1065 and address decoder 1066
In the passage of coded address.
In any of the above-described embodiment, it is preferable that switch unit 1062 for N-channel enhanced power field-effect tube and/
Or P-channel depletion type power field effect pipe.
In this embodiment, N-channel enhanced power field-effect tube and/or P-channel depletion type power field effect pipe are passed through
As switch unit 1062, it can realize and be added by control input to the duty cycle of the pulse signal of switch unit 1062 to adjust
Thermal power is advantageously implemented and adjusts heating power in time according to the temperature feedback of print area, improves the temperature on hott bed surface
Harmonious and temperature controlled flexibility.
Wherein, when using N-channel enhanced power field-effect tube, 104 common-anode of heating module, the enhanced work(of N-channel
Rate field-effect tube and the cathode of each heating module 104 connect one to one, when using P-channel depletion type power field effect pipe
When, 104 common cathode of heating module, P-channel depletion type power field effect pipe and the anode of each heating module 104 correspond
Connection.
As shown in Fig. 2, in any of the above-described embodiment, it is preferable that further include：Current acquisition module 110, is connected in series
Between substrate 102 and power supply 112, current acquisition module 110 is connected with controller 108, to gather multiple heating modules 104
Total current signal is input to controller 108.
In this embodiment, the current acquisition module 110 being connected in series between substrate 102 and power supply 112, acquisition are passed through
The total current signal of multiple heating modules 104, realizes the temperature feedback of print area to controller 108, is conducive to controller
108 adjust heating power in time, further improve the temperature equalization on hott bed surface and temperature controlled flexibility.
Specifically, according to 112 voltage of power supply and the total current signal of multiple heating modules 104, it may be determined that in heating
Then the resistance value of the heating module 104 of state can determine temperature, then according to the resistance v. temperature change curve to prestore
By temperature compared with the temperature value set, generate corresponding drive signal, realize according to the temperature feedback of print area and
When adjust heating power, with while printing effect is improved, reduce printing energy consumption.
In any of the above-described embodiment, it is preferable that current acquisition module 110 is current transformer and/or current sample
Resistance.
In this embodiment, current acquisition module 110, a side are used as by current transformer and/or current sampling resistor
Face sets simplicity, and occupied space is smaller, and on the other hand, current signal acquisition accuracy rate is higher.
In any of the above-described embodiment, it is preferable that substrate 102 is aluminum substrate, aluminium alloy base plate or glass substrate；Signal
Line is RS485 buses or RS232 buses；Wireless communication unit is Wi-Fi units and/or bluetooth unit and/or NFC unit.
In this embodiment, substrate 102 is used as by aluminum substrate, aluminium alloy base plate or glass substrate, heat conductivility is preferable,
Save energy consumption, signal wire be used as by RS485 buses or RS232 buses, by Wi-Fi units and/or bluetooth unit and/or
For NFC unit as wireless communication unit, signal transmission effect is preferable, is advantageously implemented from controller 108 to drive module 106 and passes
Defeated drive signal.
Embodiment 4
The 3D printer that embodiment according to the present utility model provides, including：The embodiment of above-mentioned the utility model proposes
Any one 3D printer hott bed.
In this embodiment, 3D printer includes the 3D printing of any one of the embodiment proposition of above-mentioned the utility model
Machine hott bed, thus with it is above-mentioned the utility model proposes any one 3D printer hott bed whole advantageous effects, herein not
It repeats again.
Embodiment 5
The 3D printer hott bed of one embodiment according to the present utility model, as shown in Figure 1, the surface of substrate 102 is uniform
3 rows, 3 row heating modules 104 are distributed with, a terminal of heating module 104 is directly connected with substrate 102, heating module 104
Another terminal is drawn out to the outside of substrate 102, and substrate 102 has positive terminal, positive terminal and current acquisition mould
Block 110 is connected after connecting with the anode of power supply 112, as shown in Fig. 2, current acquisition module 110 is connected with controller 108, control
Device 108 is connected by wire connection terminal with driving unit 1064, driving unit 1064 and the door of each N-channel enhancement mode FET
Pole connects respectively, as shown in figure 3, another terminal of heating module 104 is drawn out to the outside of substrate 102, is connected to N-channel increasing
The drain electrode of strong type field-effect tube, the drain electrode of N-channel enhancement mode FET are connected to one also by sustained diode 1, D2 etc.
Bus rod, is then attached to the anode of power supply 112, and the source electrode of N-channel enhancement mode FET is connected to another confluence
Busbar is then attached to the cathode of power supply 112, as shown in figure 4, the inside of driving unit 1064 have data sink 1065,
Location decoder 1066, the channel selecting signal that address decoder 1066 exports are respectively connected to data register 1067, J1-J9,
Data receipt unit is connected to data register 1067, J1-J9, data register 1067, J1-J9, difference by data/address bus
With signal generator 1068, X1-X9 connections, 1068 output pulse signal of signal generator to the outside of driving unit 1064, and
It is connected one by one with the gate pole of N-channel enhancement mode FET.
The technical solution of the utility model is described in detail above in association with attached drawing, the utility model proposes a kind of 3D printings
Machine hott bed and 3D printer, can be according to actual first by stagger setting in the control respectively of multiple heating modules on substrate
The shape of beginning print area is adjusted flexibly heating region, and adjusts heating power in time according to the temperature feedback of print area, carries
The high temperature equalization on hott bed surface and temperature controlled flexibility, meanwhile, save energy consumption.
In the utility model, term " first ", " second ", " the 3rd " are only used for the purpose of description, and it is not intended that
Instruction implies relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
The terms such as dress ", " connected ", " connection ", " fixation " should all be interpreted broadly, for example, " connection " can be fixedly connected, it can also
It is to be detachably connected or be integrally connected；" connected " can be directly connected, and can also be indirectly connected by intermediary.It is right
For those of ordinary skill in the art, it can understand that above-mentioned term is specific in the utility model as the case may be
Meaning.
In the description of the utility model, it is to be understood that the fingers such as term " on ", " under ", "left", "right", "front", "rear"
The orientation or position relationship shown be based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and
Simplify description rather than instruction or imply that signified device or unit there must be specific direction, with specific azimuth configuration
And operation, it is thus impossible to be interpreted as the limitation to the utility model.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the particular features, structures, materials, or characteristics that the embodiment or example describe is contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In combine in an appropriate manner.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of 3D printer hott bed, which is characterized in that including：
Substrate；
Multiple heating modules, stagger setting is on the substrate, to be heated to the different zones of the substrate；
Drive module is electrically connected with the multiple heating module, each to be respectively driven according to the drive signal received
Heating module heats；
Controller is connected with the drive module by signal wire or wireless communication unit, to transmit institute to the drive module
State drive signal；
The controller is connected by wire connection terminal with driving unit, the driving unit and the enhanced field-effect of each N-channel
The gate pole of pipe connects respectively.
2. 3D printer hott bed according to claim 1, which is characterized in that the heating module, including：
Heating resistance element, one end of the heating resistance element are connected to the designated position of the substrate, to access power supply, institute
The other end for stating heating resistance element is extended to outside the edge of the substrate, to be electrically connected with the drive module.
3. 3D printer hott bed according to claim 1, which is characterized in that the heating module, including：
Resistive film, the resistive film are laid on the substrate, and the periphery of the resistive film is equipped with insulating layer, the resistive film
One end is connected to the designated position of the substrate, and to access power supply, the other end of the resistive film extends to the side of the substrate
Outside edge, to be electrically connected with the drive module.
4. 3D printer hott bed according to any one of claim 1 to 3, which is characterized in that
The multiple heating module is set on the substrate in array distribution.
5. 3D printer hott bed according to any one of claim 1 to 3, which is characterized in that the drive module, bag
It includes：
Multiple switch unit is electrically connected with the multiple heating module one-to-one corresponding；
The driving unit is electrically connected with the multiple switch unit, with according to the drive signal, control is each respectively
The conducting and cut-off of switch unit,
The driving unit, including：
Data sink is electrically connected with the controller, to receive the drive signal, and generates numerical signal；
Address decoder is electrically connected with the controller, to receive the drive signal, and generates channel selecting signal；
Multiple data registers are connected respectively with described address decoder, the data sink, with according to the channel selecting
Signal writes corresponding numerical signal；
Multiple signal generators connect one to one with the multiple data register, the multiple signal generator with it is described
Multiple switch unit connects one to one, and to generate pulse signal according to the numerical signal, and is delivered to opening of being correspondingly connected with
Close unit.
6. 3D printer hott bed according to claim 5, which is characterized in that
The switch unit is the N-channel enhanced power field-effect tube and/or P-channel depletion type power field effect pipe.
7. 3D printer hott bed according to any one of claim 1 to 3, which is characterized in that further include：
Current acquisition module is connected in series between the substrate and power supply, and the current acquisition module connects with the controller
It connects, the controller is input to the total current signal for gathering the multiple heating module.
8. 3D printer hott bed according to claim 7, which is characterized in that
The current acquisition module is current transformer and/or current sampling resistor.
9. 3D printer hott bed according to any one of claim 1 to 3, which is characterized in that
The substrate is aluminum substrate, aluminium alloy base plate or glass substrate；
The signal wire is RS485 buses or RS232 buses；
The wireless communication unit is Wi-Fi units and/or bluetooth unit and/or NFC unit.
10. a kind of 3D printer, which is characterized in that including：
3D printer hott bed as claimed in any one of claims 1-9 wherein.
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| CN201721067056.4U CN207415983U (en) | 2017-08-24 | 2017-08-24 | 3D printer hott bed and 3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859106A (en) * | 2018-08-20 | 2018-11-23 | 广东华领智能制造有限公司 | A kind of hott bed for technical grade large size increasing material manufacturing equipment |
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2017
- 2017-08-24 CN CN201721067056.4U patent/CN207415983U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108859106A (en) * | 2018-08-20 | 2018-11-23 | 广东华领智能制造有限公司 | A kind of hott bed for technical grade large size increasing material manufacturing equipment |
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