CN203945662U - A kind of extruder and controller thereof - Google Patents
A kind of extruder and controller thereof Download PDFInfo
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- CN203945662U CN203945662U CN201420238142.7U CN201420238142U CN203945662U CN 203945662 U CN203945662 U CN 203945662U CN 201420238142 U CN201420238142 U CN 201420238142U CN 203945662 U CN203945662 U CN 203945662U
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Abstract
The utility model provides a kind of extruder and controller thereof, adjusting speed accuracy is high, synchronous variable-speed harmony is good, long service life, good stability, discrete component used is less, trouble point is few, easy to maintenance, it comprises extruder, frequency converter, control described frequency converter and described extruder is carried out to the controller of speed governing, described controller comprises CPU control chip, electricly connect with described CPU control chip: power circuit, main frame pulse moder, subsidiary engine pulse moder, sync pulse encoding circuit, starting or stopping control circuit, voltage follower circuit, voltage input circuit, external equipment.
Description
Technical field
The utility model relates to extruder technology field, particularly a kind of extruder and controller thereof.
Background technology
To extruder industry, the startup that often relates to main and auxiliaries stops the problem with synchronous variable-speed, and requires to show in real time electric current and the rotating speed of main and auxiliaries.
Traditional way is by changing the magnitude of voltage of analog input, reach the object of adjusting rotary speed, yet due to the restriction of industry development, there are problems in it, such as easy to wear, service life is short, long-term use is stable not, and discrete component used is more, wiring trouble, increase trouble point, inconvenient maintenance.In addition, thus the traditional unstable generation of speed regulating method amplitude output signal output noise, adjusting speed accuracy is also not high enough, and synchronous coordination is poor.
Utility model content
For the problems referred to above, the utility model provides a kind of extruder, and adjusting speed accuracy is high, and synchronous variable-speed harmony is good, long service life, and good stability, discrete component used is less, and trouble point is few, easy to maintenance, and the utility model also provides its controller.
Technical solution adopted in the utility model is such:
An extruder, comprising:
The extruder that connects power supply, described extruder comprises extruder main frame, extruder subsidiary engine;
Frequency converter, described frequency converter electricly connects with described extruder main frame, extruder subsidiary engine respectively;
Control described frequency converter and described extruder is carried out to the controller of speed governing, described controller and described frequency converter electricly connect;
It is characterized in that: described controller comprises:
CPU control chip;
Electricly connect with described CPU control chip respectively:
Power circuit, for described CPU control chip provides operating voltage;
Pulse moder, described pulse moder comprises main frame pulse moder, subsidiary engine pulse moder, sync pulse encoding circuit, pulse moder output pulse code signal, the pulse code signal of CPU control chip identification pulse coding circuit output, for setting the given extruder rotary speed parameter that needs adjustment;
Starting or stopping control circuit, described starting or stopping control circuit is connected with frequency converter with pulse moder respectively, for by pulse coder, control frequency converter startup, stop;
Voltage follower circuit, described voltage follower circuit also electricly connects with described frequency converter, for the pulse code signal that described CPU control chip is received, be converted into voltage signal and pass to frequency converter, frequency converter receiver voltage signal, carries out frequency control to extruder;
Voltage input circuit, is connected with described frequency converter, for the actual motion electric current of feedback inverter;
External equipment.
It is further, and described external equipment comprises keyboard, LCD panel, and described LCD panel is for showing the frequency converter signal of described voltage input circuit output and the pulse code signal of described CPU control chip identification;
Described CPU control chip is 8051 single-chip microcomputers;
Described main frame pulse moder comprises pulse coder RP1, described pulse coder RP1 has 5 pins, pin 3 ground connection, pin 1, pin 2 is series resistance R32 respectively, connection+5V power supply after R33, pin 1 also connect with resistance R 35 and resistance C31 after ground connection, pin 2 also connect with resistance R 36 and resistance C32 after ground connection, pin 4 series resistance R31 and the rear connection+5V of K switch 1 power supply, pin 5 ground connection, there is left-hand rotation, turn right, the function of start and stop, when left-handed, while turning right the described pulse coder of operation, described pin 1, pin 2 generation+5V high level pulse output respectively, output signal passes to described CPU control chip, when left-handed operation, pin 1, pin 3 is first connected, pin 2, after pin 3 ends, connect, during right-handed operations, connection sequential is contrary, by sequential relationship judgement, be left-handed or dextrorotation, pin 4, connecting valve K1 between pin 5, for controlling the start and stop of frequency converter,
Described starting or stopping control circuit is outputting circuit for relay, and pulse coder is pressed, relay adhesive, and the contact adhesive of relay is controlled described frequency converter and is opened, and pulse coder is again pressed relay and is discharged, and the electric shock open circuit of relay is controlled described frequency converter and is stopped;
Described voltage follower circuit comprises voltage transitions chip, amplifier chip, and described voltage transitions chip receives the code signal that described CPU control chip is sent, and code signal is converted to voltage and uses amplifier chip amplification voltage signal;
Described voltage input circuit comprises voltage follow chip and divider resistance, be used for the voltage signal of the output of described frequency converter after divider resistance dividing potential drop, by voltage follow chip, undertaken entering described CPU control chip after impedance matching and sample, according to the size conversion of input signal, become actual running current and show on described LCD panel; Described voltage input circuit also comprises the sample resistance of series connection, for the current signal of the output of described frequency converter being become to voltage signal post-sampling, processes.
A kind of controller of extruder, it is characterized in that: it comprises CPU control chip, electricly connect with described CPU control chip: power circuit, main frame pulse moder, subsidiary engine pulse moder, sync pulse encoding circuit, starting or stopping control circuit, voltage follower circuit, voltage input circuit, external equipment.
It is further: described external equipment comprises keyboard and LCD panel; Described starting or stopping control circuit is outputting circuit for relay.
The beneficial effects of the utility model are: adopt the rotary speed parameter of pulse coder using pulse signal as the extruder of needs adjustment to pass to CPU control chip, the pulse code signal that CPU control chip receives is converted into voltage signal and passes to frequency converter, frequency converter receiver voltage signal, extruder is carried out to frequency control, by pulse coder, carry out speed governing, amplitude output signal is stable can not produce output noise, adjusting speed accuracy is high, synchronous variable-speed harmony is good, long service life, good stability, circuit is simple, discrete component used is less, trouble point is few, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the peripheral circuit schematic diagram of CPU control chip of the present utility model;
Fig. 3 is the schematic diagram of power circuit of the present utility model;
Fig. 4 is the circuit theory diagrams of main frame pulse moder of the present utility model;
Fig. 5 is the output circuit schematic diagram of relay circuit of the present utility model;
Fig. 6 is the circuit theory diagrams of 0-10v voltage follower circuit of the present utility model;
Fig. 7 is the circuit theory diagrams of input circuit of the present utility model;
Fig. 8 is 0-10v voltage input circuit schematic diagram of the present utility model;
Fig. 9 is 0-20mA current input circuit schematic diagram of the present utility model;
Figure 10 is LCD interface circuit theory diagrams of the present utility model;
Figure 11 is the structured flowchart of the controller of extruder of the present utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
See Fig. 1 to Figure 10, the utility model comprises:
The extruder 1 that connects power supply, extruder 1 comprises extruder main frame 2, extruder subsidiary engine 3;
Frequency converter 4, frequency converter 4 electricly connects with extruder main frame 2, extruder subsidiary engine 3 respectively;
Control the controller that frequency converter carries out speed governing to extruder 1, controller and frequency converter 4 electricly connect;
It is characterized in that: described controller comprises:
CPU control chip 5;
Electricly connect with CPU control chip 5 respectively:
Power circuit 6, for CPU control chip 5 provides operating voltage;
Pulse moder, pulse moder comprises main frame pulse moder 7, subsidiary engine pulse moder 8, sync pulse encoding circuit 9, pulse moder output pulse code signal, the pulse code signal of CPU control chip 5 identification pulse coding circuit outputs, for setting the given extruder rotary speed parameter that needs adjustment;
Starting or stopping control circuit 10, starting or stopping control circuit is connected with frequency converter 4 with pulse moder respectively, for by pulse coder, control frequency converter startup, stop;
Voltage follower circuit 11, voltage follower circuit 11 also electricly connects with frequency converter 3, is converted into voltage signal passes to frequency converter 3 for the pulse code signal that CPU control chip 5 is received, and frequency converter 3 receiver voltage signals, carry out frequency control to extruder 1;
Voltage input circuit 12, is connected with frequency converter 4, for the actual motion electric current of feedback inverter 4;
External equipment.
External equipment comprises keyboard 13, LCD panel 14, and LCD panel 14 is for showing the frequency converter signal of voltage input circuit 11 outputs and the pulse code signal of CPU control chip 4 identifications.
Starting or stopping control circuit 10 is outputting circuit for relay, and pulse coder is pressed, relay adhesive, and the contact adhesive of relay is controlled described frequency converter and is opened, and pulse coder is again pressed relay and is discharged, and the electric shock open circuit of relay is controlled described frequency converter and is stopped.
See Figure 11, a kind of controller of extruder, it comprises CPU control chip 5, electricly connect with CPU control chip 5: power circuit 6, main frame pulse moder 7, subsidiary engine pulse moder 8, sync pulse encoding circuit 9, starting or stopping control circuit 10, voltage follower circuit 11, voltage input circuit 12, external equipment, external equipment comprises keyboard 13 and LCD panel 14, and starting or stopping control circuit 10 is outputting circuit for relay.
The utility model adopts the rotary speed parameter of pulse coder using pulse signal as the extruder of needs adjustment to pass to CPU control chip, the pulse code signal that CPU control chip receives is converted into voltage signal and passes to frequency converter, and frequency converter receiver voltage signal, carries out frequency control to extruder, by pulse coder, carry out speed governing, adjusting speed accuracy is high, and synchronous variable-speed harmony is good, long service life, good stability, discrete component used is less, and trouble point is few, easy to maintenance; After adopting controller of the present invention, extruder speed adjustable range arrives stepless speed regulation within the scope of maximum speed zero, and efficiency is higher, and the temperature rise of motor controller is less; Extruder run duration, can there is not power device and control the wrong phenomenon that causes short circuit and burn controller, demonstration input and output voltage and electric current are realized FEEDBACK CONTROL, guaranteed the stable of process conditions, improve the precision of goods, reached the requirement of simple in structure, Digital Control, stepless speed regulation.
Below each described circuit of the present invention is elaborated in conjunction with the embodiments.
As Figure 11, the controller of extruder comprises CPU control chip 5, power circuit 6, main frame pulse moder 7, subsidiary engine pulse moder 8, sync pulse encoding circuit 9, starting or stopping control circuit 10, voltage follower circuit 11, voltage input circuit 12, keyboard 13 and LCD panel 14, respectively by+5 ,+12 electric power network is connected with control chip.
One, CPU control chip
CPU control chip 1 adopts 8051 single-chip microcomputers, its peripheral circuit schematic diagram as shown in Figure 2, there is the high speed of employing, low-power consumption, superpower jamproof feature, inner integrated MAX810 Special reset circuit, integrated 8 road 10-bit high speed A/D converters, integrated chip EEPROM, can preserve the parameter of the setting that frequency converter needs.
Two, power circuit
Power circuit 2 is used to described CPU control chip that operating voltage is provided, and its composition comprises fuse F1, thermistor, piezo-resistance RV1, transformer, voltage stabilizing chip, DC-DC power supply and power supply indicator, and its concrete connecting circuit is as shown in Figure 3.Fuse F1 is for the current protection of circuit, and when circuit total current is greater than the blow-out current value of fuse, blown fuse, prevents that the excessive circuit that causes of electric current from damaging.Piezo-resistance RV1, for overvoltage protection, prevents the interference of voltage ripple of power network to circuit.Common mode inductance L2 suppresses for EMI.Transformer U2 exchanges line voltage 220V to become direct current 24V.Again by system voltage 5V after transformer U1 conversion for 24V.
Three, pulse moder
Pulse moder 6 comprises main frame pulse moder 13, subsidiary engine pulse moder 14, sync pulse encoding circuit 15, main frame pulse moder 13 is connected with CPU control chip 1 by A1, B1, K1 end respectively, subsidiary engine pulse moder 14 is connected with CPU control chip 1 by A2, B2, K2 end respectively, and sync pulse encoding circuit 15 is connected with CPU control chip 1 by A3, B3, K3 end respectively.The circuit of subsidiary engine pulse moder 14, sync pulse encoding circuit 15 is identical with the circuit of main frame pulse moder 13, does not explain here.Its concrete connecting circuit of main frame pulse moder as shown in Figure 4, comprise pulse coder RP1, pulse coder RP1 has 5 pins, pin 3 ground connection, pin 1, pin 2 is series resistance R32 respectively, connection+5V power supply after R33, pin 1 also connect with resistance R 35 and resistance C31 after ground connection, pin 2 also connect with resistance R 36 and resistance C32 after ground connection, pin 4 series resistance R31 and be connected+5V power supply after relay switch K1, pin 5 ground connection, there is left-hand rotation, turn right, the function of start and stop, when left-handed, while turning right the described pulse coder of operation, pin 1, pin 2 generation+5V high level pulse output respectively, output signal passes to CPU control chip, when left-handed operation, pin 1, pin 3 is first connected, pin 2, after pin 3 ends, connect, during right-handed operations, connection sequential is contrary, by sequential relationship judgement, be left-handed or dextrorotation, pin 4, between pin 5, connect relay switch K1, pulse potential device RP1, can play the effect of left-hand rotation, right-hand rotation, start and stop, when rotary manipulation, according to direction of rotation not to, what between pin 1, pin 2, output signal can be used for parameter value adds, subtracts adjustment, when pressing turning handle, while making pin 4, pin 5 produce the output of relay switch K1 signal, for controlling stopping of frequency converter.
Four, starting or stopping control circuit
Starting or stopping control circuit adopts outputting circuit for relay, and its composition comprises optocoupler U4, relay K 1 and triode S1, and its concrete connecting circuit as shown in Figure 5.The output form of this circuit is relay K 1 output, when pulse coder is pressed, after the identification of CPU control chip, presses relay K 1 adhesive, contact OUTPUT1-1 and OUTPUT1-2 short circuit, thus can control the startup of frequency converter 2.After pulse coder is pressed again, relay K 1 discharges, contact OUTPUT1-1 and OUTPUT1-2 open circuit, thus control stopping of frequency converter.
Five, voltage follower circuit
Voltage follower circuit is 0-10v voltage follower circuit, and its composition comprises voltage transitions chip U10, amplifier chip U11A and overvoltage protection and resistance capacitance, and its concrete connecting circuit as shown in Figure 6.Voltage transitions chip U10 receives the code signal that cpu chip is sent, and this signal is converted to the 0-5V voltage of standard, amplifier chip U11A is the voltage signal to 0-10V by this 0-5V voltage amplification again, frequency converter is adjusted the rotating speed of motor according to the voltage signal size of 0-10V, thereby reaches the object of extruder speed governing.
Six, voltage input circuit
Voltage input circuit is 0-10v voltage input circuit, as shown in Figure 7,8, the 0-10v voltage input circuit that has comprised extruder main frame and extruder subsidiary engine, in order to show the actual motion electric current of extruder main frame and extruder subsidiary engine, need to process the output signal of frequency converter, in general, the signal that frequency converter can be exported a 0-10V voltage or 0-20MA electric current reacts the actual motion electric current of frequency converter.The voltage signal 0-10V of the frequency converter of extruder main frame passes through after resistance R 6, R11 dividing potential drop, obtain the signal of 0-2.5V, this signal is undertaken by voltage follow chip U6 that impedance matching is laggard to be entered host CPU and sample, thereby becomes actual running current and show on LCDs according to the size conversion of input signal.The same, the voltage signal 0-10V of the frequency converter of extruder subsidiary engine is by resistance R 7, R12 dividing potential drop.
For the current signal 0-20MA of frequency converter, as shown in Fig. 7,9, the voltage input circuit of extruder main frame, by series connection sample resistance, R18 is transformed into 0-2V voltage signal, and then carries out sampling processing; The voltage input circuit of extruder subsidiary engine, by series connection sample resistance, R19 is transformed into 0-2V voltage signal, and then carries out sampling processing.
Seven, LCD panel
LCD panel forms and comprises LCD1 and transistor drive circuit, and physical interface circuit theory diagrams as shown in figure 10, adopt liquid crystal display as man-machine interface, and liquid crystal is used the size of 192*64 dot matrix, can show character, Chinese character and relevant icon.
Claims (10)
1. an extruder, comprising:
The extruder that connects power supply, described extruder comprises extruder main frame, extruder subsidiary engine;
Frequency converter, described frequency converter electricly connects with described extruder main frame, extruder subsidiary engine respectively;
Control described frequency converter and described extruder is carried out to the controller of speed governing, described controller and described frequency converter electricly connect;
It is characterized in that: described controller comprises:
CPU control chip;
Electricly connect with described CPU control chip respectively:
Power circuit, for described CPU control chip provides operating voltage;
Pulse moder, described pulse moder comprises main frame pulse moder, subsidiary engine pulse moder, sync pulse encoding circuit, pulse moder output pulse code signal, the pulse code signal of CPU control chip identification pulse coding circuit output, for setting the given extruder rotary speed parameter that needs adjustment;
Starting or stopping control circuit, described starting or stopping control circuit is connected with frequency converter with pulse moder respectively, for by pulse coder, control frequency converter startup, stop;
Voltage follower circuit, described voltage follower circuit also electricly connects with described frequency converter, for the pulse code signal that described CPU control chip is received, be converted into voltage signal and pass to frequency converter, frequency converter receiver voltage signal, carries out frequency control to extruder;
Voltage input circuit, is connected with described frequency converter, for the actual motion electric current of feedback inverter;
External equipment.
2. a kind of extruder according to claim 1, it is characterized in that: described external equipment comprises keyboard, LCD panel, described LCD panel is for showing the frequency converter signal of described voltage input circuit output and the pulse code signal of described CPU control chip identification.
3. a kind of extruder according to claim 1, is characterized in that: described CPU control chip is 8051 single-chip microcomputers.
4. a kind of extruder according to claim 1, it is characterized in that: described main frame pulse moder comprises pulse coder RP1, described pulse coder RP1 has 5 pins, pin 3 ground connection, pin 1, pin 2 is series resistance R32 respectively, connection+5V power supply after R33, pin 1 also connect with resistance R 35 and resistance C31 after ground connection, pin 2 also connect with resistance R 36 and resistance C32 after ground connection, pin 4 series resistance R31 and the rear connection+5V of K switch 1 power supply, pin 5 ground connection, there is left-hand rotation, turn right, the function of start and stop, when left-handed, while turning right the described pulse coder of operation, described pin 1, pin 2 generation+5V high level pulse output respectively, output signal passes to described CPU control chip, when left-handed operation, pin 1, pin 3 is first connected, pin 2, after pin 3 ends, connect, during right-handed operations, connection sequential is contrary, by sequential relationship judgement, be left-handed or dextrorotation, pin 4, connecting valve K1 between pin 5, for controlling the start and stop of frequency converter.
5. a kind of extruder according to claim 1, it is characterized in that: described starting or stopping control circuit is outputting circuit for relay, pulse coder is pressed, relay adhesive, the contact adhesive of relay is controlled described frequency converter and is opened, pulse coder is again pressed relay and is discharged, and the electric shock open circuit of relay is controlled described frequency converter and stopped.
6. a kind of extruder according to claim 1, it is characterized in that: described voltage follower circuit comprises voltage transitions chip, amplifier chip, described voltage transitions chip receives the code signal that described CPU control chip is sent, and code signal is converted to voltage and uses amplifier chip amplification voltage signal.
7. a kind of extruder according to claim 2, it is characterized in that: described voltage input circuit comprises voltage follow chip and divider resistance, be used for the voltage signal of the output of described frequency converter after divider resistance dividing potential drop, by voltage follow chip, undertaken entering described CPU control chip after impedance matching and sample, according to the size conversion of input signal, become actual running current and show on described LCD panel; Described voltage input circuit also comprises the sample resistance of series connection, for the current signal of the output of described frequency converter being become to voltage signal post-sampling, processes.
8. the controller for extruder claimed in claim 1, it is characterized in that: it comprises CPU control chip, electricly connect with described CPU control chip: power circuit, main frame pulse moder, subsidiary engine pulse moder, sync pulse encoding circuit, starting or stopping control circuit, voltage follower circuit, voltage input circuit, external equipment.
9. the controller of a kind of extruder according to claim 8, is characterized in that: described external equipment comprises keyboard and LCD panel.
10. the controller of a kind of extruder according to claim 8, is characterized in that: described starting or stopping control circuit is outputting circuit for relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238142.7U CN203945662U (en) | 2014-05-12 | 2014-05-12 | A kind of extruder and controller thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420238142.7U CN203945662U (en) | 2014-05-12 | 2014-05-12 | A kind of extruder and controller thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203945662U true CN203945662U (en) | 2014-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420238142.7U Withdrawn - After Issue CN203945662U (en) | 2014-05-12 | 2014-05-12 | A kind of extruder and controller thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203945662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015339A (en) * | 2014-05-12 | 2014-09-03 | 无锡市博宇塑机有限公司 | Extruding machine and controller thereof |
-
2014
- 2014-05-12 CN CN201420238142.7U patent/CN203945662U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015339A (en) * | 2014-05-12 | 2014-09-03 | 无锡市博宇塑机有限公司 | Extruding machine and controller thereof |
| CN104015339B (en) * | 2014-05-12 | 2016-08-24 | 无锡市博宇塑机有限公司 | Extruder and controller thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |