CN106273478A - A kind of temperature-controlled process of the thermal printing head of 3D print system - Google Patents
A kind of temperature-controlled process of the thermal printing head of 3D print system Download PDFInfo
- Publication number
- CN106273478A CN106273478A CN201610646115.7A CN201610646115A CN106273478A CN 106273478 A CN106273478 A CN 106273478A CN 201610646115 A CN201610646115 A CN 201610646115A CN 106273478 A CN106273478 A CN 106273478A
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- Prior art keywords
- temperature
- printing head
- thermal printing
- controlled process
- print system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Electronic Switches (AREA)
Abstract
The temperature-controlled process of the thermal printing head of a kind of 3D print system disclosed by the invention, the temperature using output low level to control thermal printing head during intensification rises, when the temperature of thermal printing head reaches preset temperature, switching voltage output device, uses chopper circuit output voltage to maintain thermal printing head temperature；And the chopped mode control mode that the present invention proposes, shorten the service life changing the coldest temperature instability caused of thermal printing head heat suddenly in very short time and thermal printing head, therefore there is clear advantage.
Description
Technical field
The present invention designs 3D printer field, particularly relates to the controlling party of the thermal printing head temperature of a kind of 3D print system
Formula, can optionally control the heating of thermal printing head.
Background technology
For the 3D printer of laser sintered principle compared by the 3D printer using fine hot melt principle, owing to not using
Laser generator and laser galvanometer, so becoming present aspect to have great advantage；Compare desktop FDM type 3D printer simultaneously and
Speech, its formed precision has again and the most significantly promotes, and therefore has the most wide market prospect.
But, fine hot melt principle 3D printer typically uses thermal printing head as pyrotoxin, the mark of thermal printing head
Quasi-control mode is Automatic level control, and the thermal printing head wherein used is low level heating, in fever time, gives and prints hair
Send low level, then printhead is brought rapidly up in fever time；To printhead high level, then printhead is lowered the temperature the most rapidly；
But this mode have certain defect, the mode of this fast cooling that is rapidly heated be unfavorable for printhead more accurately, stable
Ground heating, the most likely moment heating is too high, can reduce print head longevity, it is therefore desirable to find regulation thermal printing head heating
The control method of mode.
Summary of the invention
In view of this, needing to overcome drawbacks described above of the prior art, the present invention proposes and is intended to a certain degree
A kind of control method of the thermal printing head temperature of the 3D print system of upper solution Related Technical Issues.
The control method of the thermal printing head temperature of described a kind of 3D print system, its mode is that described temperature controls
Method uses output low level to control thermal printing head ascending temperature process, when the temperature of described thermal printing head reaches to preset temperature
When spending, described temperature-controlled process switching voltage output device, use output chopping voltage to maintain the temperature of described thermal printing head
Degree.
According in this patent background technology to described in prior art, the standard controlling party of currently used a kind of Automatic level control
Formula, in fever time, sends low level to printhead, then printhead is brought rapidly up in fever time, gives and print head height
Level, then printhead is lowered the temperature the most rapidly；This mode has certain defect, and the mode of this fast cooling that is rapidly heated is unfavorable
In printhead more accurately, stably generate heat, the most likely moment heating is too high, can reduce print head longevity；And the present invention
The two-part heating system proposed, change thermal printing head in very short time neglect heat neglect the coldest temperature that causes unstable and
The service life of thermal printing head shortens, and therefore has clear advantage.
It addition, according to the control method of the thermal printing head temperature of a kind of 3D print system disclosed by the invention also have as
Lower additional technical feature:
Further, described temperature-controlled process also includes:
Described low level output includes to the temperature control system being arranged on described thermal printing head, described temperature control system
Heater block, temperature sense parts, described heater block makes the temperature rapid increase of described thermal printing head, described temperature sense
The temperature of thermal printing head described in parts Real-time Feedback, when the temperature of described thermal printing head reaches described preset temperature, electricity
The way of output of voltage is switched over by pressure control module, stops described low level output, switches to output described copped wave electricity
Pressure, thus maintain temperature stabilization.
Further, to control the intensification of described thermal printing head pre-for the length by regulating the described low level output time
If value；
The length of time is controlled, can control low level output time flexibly, it is achieved thereby that beat according to temperature required
Print the more controllable of the hot temperature of hair.
Further, the output time length by adjusting described chopping voltage regulates holding time of predetermined temperature；
Chopping voltage is to locate out of need, utilizes electronic component that voltage waveform is partly ended, can be by original straight line
Power supply " cuts " the pulse of a piece a piece by circuit.
Further, described chopping voltage is PWM ripple；I.e. propose a chopper circuit controlled based on described PWM to control
System.
Further, the dutycycle by regulating described PWM ripple regulates the size of described predetermined temperature amplitude；
Described PWM is exactly pulse width modulation, and described dutycycle refers to the conduction time of pulse signal and the ratio of power cycles, logical
Cross variable regulation pulse width and realize holding time of preset temperature.
Further, described temperature sense parts are thermocouple sensor or thermal resistance sensor.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
Substantially with easy to understand, wherein:
Fig. 1 is the standard control mode schematic diagram of the voltage during thermal printing head temperature controls；
Fig. 2 be the thermal printing head temperature of a kind of 3D print system control method in export the chopper control mode of chopping voltage
Schematic diagram.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function；Below with reference to attached
The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the control of the thermal printing head temperature of a kind of 3D print system according to the present invention is described in detail
Method processed.
The standard control mode of voltage as shown in Figure 1, in figure, the increase of voltage V T in time does not change, and hot
The temperature of quick printhead (unit be DEG C) increase in time presents the most slowly rising and then suddenlys change the change risen.
As in figure 2 it is shown, the chopper control mode in voltage control method, fever time is divided into two time periods, the
One time period is used for making printhead be brought rapidly up；Second time period is used for keeping the heating temp of printhead, and along with time
Between the change of T making fluctuation by a small margin, mode is as follows:
Described temperature-controlled process uses output low level to control thermal printing head ascending temperature process, when described thermal printing head
Temperature when reaching preset temperature, described temperature-controlled process switching voltage output device, use output chopping voltage to maintain institute
State the temperature of thermal printing head.
According in this patent background technology to described in prior art, as it is shown in figure 1, currently used a kind of Automatic level control
Standard control mode, in fever time, sends low level to printhead, then printhead is brought rapidly up in fever time；
To printhead high level, then printhead is lowered the temperature the most rapidly；This mode has certain defect, this fast cooling that is rapidly heated
Mode be unfavorable for printhead more accurately, stably generate heat, the most likely moment heating is too high, can reduce the printhead longevity
Life；And the chopper control mode that the present invention proposes, change thermal printing head heat of neglecting in very short time and neglect the cold temperature caused
The service life of degree instability and thermal printing head shortens, and therefore has clear advantage.
It addition, according to the control method of the thermal printing head temperature of a kind of 3D print system disclosed by the invention also have as
Lower additional technical feature:
According to some embodiments of the present invention, described temperature-controlled process also includes:
Described low level output includes to the temperature control system being arranged on described thermal printing head, described temperature control system
Heater block, temperature sense parts, described heater block makes the temperature rapid increase of described thermal printing head, described temperature sense
The temperature of thermal printing head described in parts Real-time Feedback, when the temperature of described thermal printing head reaches described preset temperature, electricity
The way of output of voltage is switched over by pressure control module, stops described low level output, switches to output described copped wave electricity
Pressure, thus maintain temperature stabilization.
According to some embodiments of the present invention, described temperature sense parts are temperature sensor, can select according to actual needs
Select thermal resistance or thermocouple sensor.
According to some embodiments of the present invention, control described temperature-sensitive by the length regulating the described low level output time
The intensification preset value of printhead；
Described intensification preset value needs to determine according to actual selection, and the length of time is controlled, according to required
Temperature can control described low level output time flexibly, so that the temperature of printhead heating becomes more controllable.
According to some embodiments of the present invention, regulate pre-constant temperature by adjusting the time length exporting described chopping voltage
Holding time of degree；
Chopping voltage is in order at needs, utilizes electronic component that voltage waveform is partly ended, can be by original straight line
Power supply " cut " the pulse of a piece a piece by circuit, form the discrete square-wave voltage that we need.
According to some embodiments of the present invention, described copped wave road voltage is PWM ripple.
According to some embodiments of the present invention, regulate described predetermined temperature by the dutycycle regulating described PWM ripple
Amplitude size；
Described PWM is exactly pulse width modulation, and described dutycycle refers to the conduction time of pulse signal and the ratio of power cycles, logical
Cross variable regulation pulse width and change the size of dutycycle, it is achieved the cyclically-varying of the input voltage of temperature controller, from
And make the fluctuation within a narrow range in certain scope of required hot melting temperature, realize the lasting stability maintenance of preset temperature to a certain extent.
Any mention that " embodiment ", " embodiment ", " illustrative examples " etc. mean to combine what this embodiment described
Concrete component, structure or feature are contained at least one embodiment of the present invention；Schematic at this specification everywhere this
Statement is not necessarily referring to identical embodiment；And, when combining any embodiment, concrete component, structure or feature are described
Time, advocated, realize such component, structure or feature in conjunction with other embodiment and all fall within those skilled in the art
Within the scope of.
Although the multiple illustrative examples with reference to the present invention have carried out detailed retouching to the detailed description of the invention of the present invention
State, it must be understood that those skilled in the art can be designed that multiple other improvement and embodiment, these improve and implement
Example will fall within spirit and scope；Specifically, in the scope of aforementioned disclosure, accompanying drawing and claim
Within, rational modification and improvement can be made in terms of the layout of parts and/or sub-combination layout, without departing from
The spirit of the present invention；Except the modification in terms of parts and/or layout and improvement, its scope is by claims and equivalent thereof
Thing limits.
Claims (7)
1. the temperature-controlled process of the thermal printing head of a 3D print system, it is characterised in that described temperature-controlled process is adopted
The temperature ramp de of thermal printing head is controlled, when the temperature of described thermal printing head reaches preset temperature by output low level
Time, described temperature-controlled process switching voltage output device, use output chopping voltage to maintain the temperature of described thermal printing head.
The temperature-controlled process of the thermal printing head of 3D print system the most according to claim 1, it is characterised in that described
Temperature-controlled process also includes:
Described low level output includes to the temperature control system being arranged on described thermal printing head, described temperature control system
Heater block, temperature sense parts, described heater block makes the temperature rapid increase of described thermal printing head, described temperature sense
The temperature of thermal printing head described in parts Real-time Feedback, when the temperature of described thermal printing head reaches described preset temperature, electricity
The way of output of voltage is switched over by pressure control module, stops described low level output, switches to output described copped wave electricity
Pressure, thus maintain temperature stabilization.
The temperature-controlled process of the thermal printing head of 3D print system the most according to claim 1, it is characterised in that pass through
Regulate the length of described low level output time to control the size of the preset temperature of described thermal printing head.
The temperature-controlled process of the thermal printing head of 3D print system the most according to claim 1, it is characterised in that pass through
Adjust the output time length of described chopping voltage to regulate holding time of preset temperature.
The temperature-controlled process of the thermal printing head of 3D print system the most according to claim 1, it is characterised in that described
Chopping voltage is PWM ripple.
The temperature-controlled process of the thermal printing head of 3D print system the most according to claim 1, it is characterised in that described
Chopping voltage is PWM ripple, is regulated the amplitude size of described preset temperature by the dutycycle regulating described PWM ripple.
The temperature-controlled process of the thermal printing head of 3D print system the most according to claim 2, it is characterised in that described
Temperature sense parts are thermocouple sensor or thermal resistance sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646115.7A CN106273478A (en) | 2016-08-09 | 2016-08-09 | A kind of temperature-controlled process of the thermal printing head of 3D print system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646115.7A CN106273478A (en) | 2016-08-09 | 2016-08-09 | A kind of temperature-controlled process of the thermal printing head of 3D print system |
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|---|---|
| CN106273478A true CN106273478A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610646115.7A Pending CN106273478A (en) | 2016-08-09 | 2016-08-09 | A kind of temperature-controlled process of the thermal printing head of 3D print system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671545A (en) * | 2017-10-09 | 2018-02-09 | 南京航空航天大学 | A kind of complex parts increase and decrease material hybrid process method and platform based on 3+2+1 axles |
| CN109782668A (en) * | 2019-01-27 | 2019-05-21 | 惠州三华工业有限公司 | To the control circuit and short circuit protection system of needle type print head conduction time |
| CN112895431A (en) * | 2021-03-08 | 2021-06-04 | 深圳市创想三维科技有限公司 | Constant temperature control device and method for printing platform and 3D printer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211463A (en) * | 2010-03-31 | 2011-10-12 | 兄弟工业株式会社 | Thermal printer |
| CN204398329U (en) * | 2014-11-27 | 2015-06-17 | 成都瑞途电子有限公司 | A kind of nozzle temperature monitoring alarm for 3D printer |
| US9482586B2 (en) * | 2014-08-21 | 2016-11-01 | Xyzprinting, Inc. | Heating control apparatus and control method thereof |
-
2016
- 2016-08-09 CN CN201610646115.7A patent/CN106273478A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211463A (en) * | 2010-03-31 | 2011-10-12 | 兄弟工业株式会社 | Thermal printer |
| US9482586B2 (en) * | 2014-08-21 | 2016-11-01 | Xyzprinting, Inc. | Heating control apparatus and control method thereof |
| CN204398329U (en) * | 2014-11-27 | 2015-06-17 | 成都瑞途电子有限公司 | A kind of nozzle temperature monitoring alarm for 3D printer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671545A (en) * | 2017-10-09 | 2018-02-09 | 南京航空航天大学 | A kind of complex parts increase and decrease material hybrid process method and platform based on 3+2+1 axles |
| CN107671545B (en) * | 2017-10-09 | 2020-03-31 | 南京航空航天大学 | 3+2+ 1-axis-based complex part material-increasing and material-decreasing hybrid processing method and platform |
| CN109782668A (en) * | 2019-01-27 | 2019-05-21 | 惠州三华工业有限公司 | To the control circuit and short circuit protection system of needle type print head conduction time |
| CN112895431A (en) * | 2021-03-08 | 2021-06-04 | 深圳市创想三维科技有限公司 | Constant temperature control device and method for printing platform and 3D printer |
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Application publication date: 20170104 |