CN109532027A - 3D printer soft-off control circuit and 3D printing equipment - Google Patents
3D printer soft-off control circuit and 3D printing equipment Download PDFInfo
- Publication number
- CN109532027A CN109532027A CN201811601911.4A CN201811601911A CN109532027A CN 109532027 A CN109532027 A CN 109532027A CN 201811601911 A CN201811601911 A CN 201811601911A CN 109532027 A CN109532027 A CN 109532027A
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- circuit
- control circuit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
A kind of 3D printer soft-off control circuit, it is connect with the 3D printing mechanism with driving motor, print head and hott bed, power interface, switching circuit, voltage conversion circuit, control circuit and motor-drive circuit are sequentially connected, and stand-by power supply circuit utilizes the power source charges of the access of power interface；Heat driven circuit and hott bed driving circuit are connect with the control circuit respectively, and are utilized respectively the power interface power supply；Power failure detection circuit is connect with the power interface and the control circuit, when the power failure detection circuit is configured to detect the power interface power down, when detecting the power interface power down, triggering utilizes the electricity record current print position for stating backup power source, critical data is saved, and then realizes that continuing after powering on beats function；And control the print head and remove print area, so as to preferably protect the model not printed, the cost of user is saved on certain procedures.
Description
Technical field
The invention belongs to electronic circuit technology field more particularly to a kind of 3D printer soft-off control circuit and 3D printings
Equipment.
Background technique
3D printer is a kind of cumulative manufacturing technology, i.e. a kind of machine of rapid prototyping technology, it is a kind of mathematical model
Based on file, with adhesive materials such as special wax material, powdery metal or plastics, by printing jointing material from level to level
To manufacture three-dimensional object.Three-dimensional printer is used to manufacture product at this stage.The mode successively printed constructs the skill of object
Art.The principle of 3D printer is that data and raw material are put into 3D printer, and machine can produce from level to level product according to program
Come.
Current 3D printer cannot handle powered-off fault situation, in the case where powered-off fault, can not handle crucial number
According to, it is even more impossible to complete necessary logical action, printed material is caused to be accumulated, it is continuous to beat poor effect.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of 3D printer soft-off control circuit and 3D printing equipment, purport
Powered-off fault is continuous beats effect solving the problem of cannot to handle present in traditional technical solution.
The first aspect of the embodiment of the present invention provides a kind of 3D printer soft-off control circuit, drives electricity with having
The 3D printing mechanism of machine, print head and hott bed connects, including power interface, stand-by power supply circuit, switching circuit, voltage transformation electricity
Road, control circuit, heat driven circuit, motor-drive circuit, hott bed driving circuit and power failure detection circuit；
The power interface, switching circuit, voltage conversion circuit, control circuit and motor-drive circuit are sequentially connected, institute
It states motor-drive circuit also to connect with the voltage conversion circuit, the stand-by power supply circuit and the power interface and described open
Close circuit connection；The stand-by power supply circuit utilizes the power source charges of the access of the power interface；The heat driven circuit
It is connect respectively with the control circuit with hott bed driving circuit, and is utilized respectively the power interface power supply；The outage detection
Circuit is connect with the power interface and the control circuit, and the power failure detection circuit, which is configured to detect the power interface, to be fallen
When electric, the control circuit is triggered using the electricity record current print position of the stand-by power supply circuit, and control described beat
It prints head and removes print area.
It in some embodiments, further include first diode, the anode of the first diode meets the power interface, institute
State the cathode and the switching circuit of first diode.
In some embodiments, the stand-by power supply circuit includes an energy storage device, first resistor and the second diode, institute
The anode for stating energy storage device connects the anode of second diode, the cathode ground connection of the energy storage device, second diode
Cathode connect the cathode of the first diode, the first resistor and second diodes in parallel.
In some embodiments, the power failure detection circuit includes second resistance and 3rd resistor, the second resistance
The first termination power interface, the outage detection end of the second termination control circuit of the second resistance, the third
The second end of the first termination second resistance of resistance, the second end ground connection of the 3rd resistor.
In some embodiments, the switching circuit includes switching tube, and the input terminal of the switching tube is electrically connected the electricity
The output end of source interface and the stand-by power supply circuit, the switching tube is electrically connected the voltage conversion circuit and the 3D printing
Mechanism, the control terminal of the switching tube are electrically connected the enabled control terminal of the control circuit.
It in some embodiments, further include third diode, the anode of the third diode connects the control circuit
Enabled control terminal, the cathode of the third diode connect the control terminal of the switching tube
It in some embodiments, further include on/off circuit, the on/off circuit and the power interface and the control
Circuit connection processed, the control circuit control the on-off of the switching circuit according to the switching signal of the on/off circuit.
In some embodiments, the on/off circuit includes runback bit-type switch, the 4th resistance, the 5th resistance and the
Four diodes, the input of the runback bit-type switch terminate the power interface, and the output of the runback bit-type switch terminates institute
The first end of the 4th resistance is stated, the second end of the 4th resistance passes through the 5th resistance eutral grounding, the second end of the 4th resistance
The switching on and shutting down test side of the control circuit is connect, the second end of the 4th resistance also meets the anode of the 4th diode, institute
The cathode for stating the 4th diode connects the control terminal of the switching tube.
It in some embodiments, further include zero-detection circuit, the zero-detection circuit includes and the driving motor
The limit switch and the 6th resistance being oppositely arranged, the 6th resistance first terminate the voltage conversion circuit, the 6th electricity
The second end of resistance is grounded by the limit switch, and the second end of the 6th resistance is also connect with the control circuit.
The second aspect of the embodiment of the present invention provides a kind of 3D printing equipment, including with driving motor, print head and
The 3D printing mechanism of hott bed and above-mentioned 3D printer soft-off control circuit.
When above-mentioned 3D printer soft-off control circuit detects the power interface power down, triggering utilizes and states backup power source
Electricity record current print position, save critical data, and then that realizes after powering on continuous beats function；And control the print head
Print area is removed, so as to preferably protect the model not printed, the cost of user is saved on certain procedures.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is 3D printer soft-off control circuit module schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the exemplary circuit schematic diagram of 3D printer soft-off control circuit shown in FIG. 1；
Fig. 3 is the circuit theory illustrated example of switching circuit in 3D printer soft-off control circuit shown in FIG. 1.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1,3D printing equipment provided in an embodiment of the present invention includes having driving motor, print head and hott bed
3D printing mechanism and 3D printer soft-off control circuit, 3D printer soft-off control circuit with have driving motor, printing
Head and hott bed 3D printing mechanism connection, 3D printer soft-off control circuit include power interface J1, stand-by power supply circuit 11,
Switching circuit 12, voltage conversion circuit 13, control circuit 14, motor-drive circuit 15, heat driven circuit 16, hott bed driving electricity
Road 17 and power failure detection circuit 18.
Power interface J1, switching circuit 12, voltage conversion circuit 13, control circuit 14 and motor-drive circuit 15 successively connect
It connects, motor-drive circuit 15 is also connect with voltage conversion circuit 13, stand-by power supply circuit 11 and power interface J1 and switching circuit
12 connections；Stand-by power supply circuit 11 utilizes the power source charges of the access of power interface J1；Heat driven circuit 16 and hott bed driving
Circuit 17 is connect with control circuit 14 respectively, and is utilized respectively power interface J1 power supply；Power failure detection circuit 18 and power interface
J1 and control circuit 14 connect, when power failure detection circuit 18 is configured to detection power interface J1 power down, 14 benefit of trigger control circuit
Current print position is recorded with the electricity of stand-by power supply circuit 11, saves critical data, and then realizes that continuing after powering on beats function；
It controls print head and removes print area, so as to preferably protect the model not printed, the cost of user is saved on certain procedures.
Referring to Fig. 2, in some embodiments, 3D printer soft-off control circuit 14 further includes first diode D1,
The anode of first diode D1 connects power interface J1, the cathode and switching circuit 12 of first diode D1.Stand-by power supply circuit 11
Including an energy storage device C1, first resistor R1 and the second diode D2, the anode of energy storage device C1 is meeting the second diode D2 just
Pole, the cathode ground connection of energy storage device C1, the cathode of the second diode D2 connect the cathode of first diode D1, first resistor R1 and the
Two diode D2 are in parallel.Energy storage device C1 is that super capacitor forms in series and parallel.First diode D1 and the second diode D2 is constituted
Power supply switch circuit, first resistor R1 are energy storage device C1 charging circuit.When external power supply is normal, first diode D1 conducting,
Second diode D2 cut-off, equipment are powered by external power supply, and are charged by first resistor R1 to energy storage device C1；External power supply
When power down, first diode D1 cut-off, heat driven circuit 16, the rapid power down of hott bed driving circuit 17 save energy storage device C1
Electricity；Second diode D2 conducting removes print area to 14 circuit of control circuit power supply critical data and control print head.Together
When, it can prevent energy storage device C1 electricity from consuming excessively, lead to brownout, too low voltage can make motor abnormal sound, internal electricity
The case where data corruption may also occur in road.
In some embodiments, power failure detection circuit 18 includes second resistance R2 and 3rd resistor R3, second resistance R2's
First termination power interface J1, the outage detection end of the second end connection control circuit 14 of second resistance R2, the of 3rd resistor R3
The second end of one termination second resistance R2, the second end ground connection of 3rd resistor R3.Second resistance R2 and 3rd resistor R3 composition
External power supply detection circuit, Real-time Feedback to control circuit 14.
In some embodiments, switching circuit 12 include switching tube, the input terminal electric connection of power supply interface J1 of switching tube and
Stand-by power supply circuit 11, the output end electrical connection voltage conversion circuit 13 and 3D printing mechanism of switching tube, the control terminal of switching tube
Be electrically connected the enabled control terminal of connection control circuit 14.Referring to Fig. 3, in the present embodiment, switching circuit 12 include a PMOS tube Q1 and
The source electrode of one NPN triode Q2, PMOS tube Q1, drain electrode are respectively the input, output end of switching tube, the grid of PMOS tube Q1 with
The collector of NPN triode Q2 connects, and the emitter ground connection of NPN triode Q2, the base stage of NPN triode Q2 is the control of switching tube
The enabled control terminal of connection control circuit 14 in end processed.Control circuit 14 includes microprocessor, such as single-chip microcontroller.In other embodiment party
In formula, NMOS tube, PNP triode replacement is can be used in PMOS tube Q1 and NPN triode Q2.
Referring to Fig. 2, in some embodiments, 3D printer soft-off control circuit 14 further includes third diode D3,
The cathode of the enabled control terminal of the positive connection control circuit 14 of third diode D3, third diode D3 connects the control of switching tube
End.
3D printer soft-off control circuit 14 further includes on/off circuit 19, on/off circuit 19 and power interface J1 electricity
Road and control circuit 14 connect, and control circuit 14 is according to the on-off of the switching signal control switch circuit 12 of on/off circuit 19.
In the present embodiment, on/off circuit 19 includes a runback bit-type switch K1, the 4th resistance R4, the 5th resistance R5 and the 4th diode
The input of D4, runback bit-type switch K1 terminates power interface J1, and the output of runback bit-type switch K1 terminates the of the 4th resistance R4
The second end of one end, the 4th resistance R4 is grounded by the 5th resistance R5, and the second end connection control circuit 14 of the 4th resistance R4 is opened
Shutdown test side, the second end of the 4th resistance R4 also connect the anode of the 4th diode D4, and the cathode of the 4th diode D4 connects switch
The control terminal of pipe.4th resistance R4 and the 5th resistance R5 constitutes key press detecting circuit, third diode D3 and the 4th diode D4
Constitute switching circuit 12 or door enable input circuit.
Equipment in the shutdown state, presses runback bit-type switch K1, and key press detecting circuit is opened through the 4th diode D4 control
Powered-down road 12 is connected, and control circuit 14 powers on rear output signal through 12 enable signal of third diode D3 latch switch circuit.If
For in open state, runback bit-type switch K1 is pressed, signal is inputed to control circuit 14, control circuit by key press detecting circuit
14 detect equal keys Self-resetting after signal, record current print position, save critical data, and then realize that continuing after powering on beats
Function, then output signal disconnects switching circuit 12 through third diode D3.
In some embodiments, 3D printer soft-off control circuit 14 further includes zero-detection circuit 20, zero point detection
Circuit 20 includes the limit switch K2 and the 6th resistance R6 being oppositely arranged with driving motor, and the 6th the first termination voltage of resistance R6 becomes
Change circuit 13, the second end of the 6th resistance R6 is grounded by limit switch K2, the second end of the 6th resistance R6 also with control circuit
14 connections.Clear point when zero-detection circuit 20 can make equipment normal operating, power down is continuous beat also can clear point, can find later
Breakpoint succession printing.
When above-mentioned 3D printer soft-off control circuit 14 and the detection power interface J1 power down of 3D printing equipment, triggering benefit
Current print position is recorded with the electricity for stating backup power source, saves critical data, and then realizes that continuing after powering on beats function；And it controls
Print head processed removes print area, so as to preferably protect the model not printed, the cost of user is saved on certain procedures.
In this way, optimizing power supply system, the energy of backup power source is enable sufficiently and rationally to be utilized, reduces energy loss,
It is natural to reduce volume.Control circuit 14 in special circumstances can automatic shutdown, it is therefore prevented that backup power source, which consumes excessively, to be caused to set
Standby abnormal sound and data exception.Print head is removed after power down, protects unfinished model, the guarantee of maximum program to the greatest extent
The quality of model.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (10)
1. a kind of 3D printer soft-off control circuit is connect with the 3D printing mechanism with driving motor, print head and hott bed,
It is characterized in that, the 3D printer soft-off control circuit includes power interface, stand-by power supply circuit, switching circuit, voltage
Translation circuit, control circuit, motor-drive circuit, heat driven circuit, hott bed driving circuit and power failure detection circuit；
The power interface, switching circuit, voltage conversion circuit, control circuit and motor-drive circuit are sequentially connected, the electricity
Drive circuit is also connect with the voltage conversion circuit, the stand-by power supply circuit and the power interface and switch electricity
Road connection；The stand-by power supply circuit utilizes the power source charges of the access of the power interface；The heat driven circuit and heat
Bed driving circuit is connect with the control circuit respectively, and is utilized respectively the power interface power supply；The power failure detection circuit
It is connect with the power interface and the control circuit, the power failure detection circuit is configured to detect the power interface power down
When, the control circuit is triggered using the electricity record current print position of the stand-by power supply circuit, and controls the printing
Head removes print area.
2. 3D printer soft-off control circuit as described in claim 1, which is characterized in that it further include first diode, institute
The anode for stating first diode connects the power interface, the cathode of the first diode and the switching circuit.
3. 3D printer soft-off control circuit as claimed in claim 2, which is characterized in that the stand-by power supply circuit includes
One energy storage device, first resistor and the second diode, the anode of the energy storage device connects the anode of second diode, described
The cathode of energy storage device is grounded, and the cathode of second diode connects the cathode of the first diode, the first resistor and
Second diodes in parallel.
4. 3D printer soft-off control circuit as claimed in claim 1,2 or 3, which is characterized in that the outage detection electricity
Road includes second resistance and 3rd resistor, the first termination power interface of the second resistance, and the of the second resistance
The outage detection end of the two termination control circuits, the second end of the first termination second resistance of the 3rd resistor, institute
State the second end ground connection of 3rd resistor.
5. 3D printer soft-off control circuit as claimed in claim 1,2 or 3, which is characterized in that the switching circuit packet
Switching tube is included, the input terminal of the switching tube is electrically connected the power interface and the stand-by power supply circuit, the switching tube
Output end is electrically connected the voltage conversion circuit and the 3D printing mechanism, and the control terminal of the switching tube is electrically connected the control
The enabled control terminal of circuit.
6. 3D printer soft-off control circuit as claimed in claim 5, which is characterized in that further include third diode, institute
The anode for stating third diode connects the enabled control terminal of the control circuit, and the cathode of the third diode connects the switching tube
Control terminal.
7. 3D printer soft-off control circuit as claimed in claim 5, which is characterized in that it further include on/off circuit, institute
It states on/off circuit to connect with the power interface and the control circuit, the control circuit is according to the on/off circuit
Switching signal controls the on-off of the switching circuit.
8. 3D printer soft-off control circuit as claimed in claim 7, which is characterized in that the on/off circuit includes one
The input of runback bit-type switch, the 4th resistance, the 5th resistance and the 4th diode, the runback bit-type switch terminates the power supply
The output of interface, the runback bit-type switch terminates the first end of the 4th resistance, and the second end of the 4th resistance passes through
5th resistance eutral grounding, the switching on and shutting down test side of the second termination control circuit of the 4th resistance, the 4th resistance
Second end also connects the anode of the 4th diode, and the cathode of the 4th diode connects the control terminal of the switching tube.
9. 3D printer soft-off control circuit as described in claim 1, which is characterized in that it further include zero-detection circuit,
The zero-detection circuit includes the limit switch being oppositely arranged with the driving motor and the 6th resistance, the 6th resistance
The one termination voltage conversion circuit, the second end of the 6th resistance are grounded by the limit switch, the 6th resistance
Second end also connect with the control circuit.
10. a kind of 3D printing equipment, which is characterized in that including with driving motor, print head and hott bed 3D printing mechanism and
The described in any item 3D printer soft-off control circuits of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811601911.4A CN109532027A (en) | 2018-12-26 | 2018-12-26 | 3D printer soft-off control circuit and 3D printing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811601911.4A CN109532027A (en) | 2018-12-26 | 2018-12-26 | 3D printer soft-off control circuit and 3D printing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN109532027A true CN109532027A (en) | 2019-03-29 |
Family
ID=65858363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811601911.4A Pending CN109532027A (en) | 2018-12-26 | 2018-12-26 | 3D printer soft-off control circuit and 3D printing equipment |
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| CN (1) | CN109532027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039587A (en) * | 2022-01-11 | 2022-02-11 | 深圳市微源半导体股份有限公司 | Shutdown control circuit, battery protection chip and electronic equipment |
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| CN114039587A (en) * | 2022-01-11 | 2022-02-11 | 深圳市微源半导体股份有限公司 | Shutdown control circuit, battery protection chip and electronic equipment |
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