CN216486076U - Turning machine operation pulse modulation device based on singlechip - Google Patents
Turning machine operation pulse modulation device based on singlechip Download PDFInfo
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- CN216486076U CN216486076U CN202123224801.0U CN202123224801U CN216486076U CN 216486076 U CN216486076 U CN 216486076U CN 202123224801 U CN202123224801 U CN 202123224801U CN 216486076 U CN216486076 U CN 216486076U
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Abstract
The utility model relates to a turner operation pulse modulation device based on a single chip microcomputer, wherein a pulse modulation device is arranged between a PLC control system and a speed measurement sensor, and the pulse modulation device comprises a control unit, a collection unit, a drive unit and an input unit; the control unit comprises an MCU chip acquisition unit, a roller signal acquisition circuit and a pulse acquisition circuit, wherein the pulse acquisition circuit is used for acquiring signals of a speed measurement sensor, the input end of the pulse acquisition circuit is connected with the output end of the speed measurement sensor, the output end of the pulse acquisition circuit is connected with the input pin of the MCU chip, the input unit comprises a dial switch group, and the output end of the MCU chip, which is connected with the input pin of the MCU chip, of the dial switch group is connected with a PLC control system through a driving unit. The utility model discloses an input unit input adjustment parameter utilizes the control unit to adjust speed sensor count pulse, and the count pulse transmission after will modulating again reaches PLC control system, realizes turning over throwing machine working distance and can adjust reduction in production cost simultaneously according to actual environmental protection.
Description
Technical Field
The utility model relates to a turn over throwing machine control field, concretely relates to turn over throwing machine operation pulse modulation device based on singlechip.
Background
The operation distance of the turner is set by a manufacturer according to daily throughput when the turner operates, so that the PLC needs to operate according to the counting pulse of the distance measuring sensor, but the original daily throughput cannot meet the operation requirement along with the factors of environmental protection pressure increase, field expansion and the like, the cost of purchasing equipment is high, and a field needs to be opened up.
If the operating distance of the turner is increased through program modification, the turner needs to make an appointment with a merchant, most turners are imported overseas, and the turner is expensive and time-consuming in debugging due to technical limitation, so that normal work is influenced.
Disclosure of Invention
The utility model provides a solve above-mentioned problem, provide a turn over throwing machine operation pulse modulation device based on singlechip, set up the control unit, the acquisition unit, drive unit and input unit, utilize the control unit to adjust the sensor count pulse that tests the speed through input unit input regulation parameter, with the count pulse transmission after the modulation to PLC control system again, realize turning over throwing machine working distance and can adjust according to the actual environmental protection circumstances, reduction in production cost simultaneously.
In order to realize the purpose, the technical scheme of the utility model is that:
a single-chip microcomputer-based turner operation pulse modulation device comprises a left part, a right part and a roller of a turner, a PLC control system for controlling the left part, the right part and the roller of the turner to operate and two speed measurement sensors connected with the PLC control system, wherein the two speed measurement sensors are respectively arranged at the left part and the right part, the PLC control system calculates the operation distance of the turner according to the counting pulse of the speed measurement sensors, a pulse modulation device is arranged between the PLC control system and the speed measurement sensors, and the pulse modulation device comprises a control unit, an acquisition unit, a driving unit and an input unit;
the control unit comprises an MCU chip;
the acquisition unit comprises a roller signal acquisition circuit and a pulse acquisition circuit for acquiring signals of the speed measurement sensor, the input end of the pulse acquisition circuit is connected with the output end of the speed measurement sensor, and the output end of the pulse acquisition circuit is connected with an input pin of the MCU chip;
the input unit comprises a dial switch group, and the dial switch group is connected with an input pin of the MCU chip;
the output end of the MCU chip is connected with the PLC control system through a driving unit;
the MCU chip, the pulse acquisition circuit and the driving unit correspond to the left part and the right part in two.
Furthermore, the pulse acquisition circuit comprises an LM319 operational amplifier circuit, wherein the in-phase end of the LM319 operational amplifier circuit is connected with the output end of the speed measurement sensor, and the output end of the LM319 operational amplifier circuit is connected with the IO pin of the MCU chip.
Further, the roller signal acquisition circuit comprises an ML358 operational amplifier circuit and a single-pole double-throw relay, the in-phase end of the ML358 operational amplifier circuit is connected with a normally open contact of an electromagnetic valve of the roller, the output end of the ML358 operational amplifier circuit is connected with a coil of the single-pole double-throw relay, one group of contacts of the single-pole double-throw relay is connected with the output end of the driving unit, and the other group of contacts is used for directly connecting the acquired speed measurement sensor signal into the PLC control system.
Furthermore, the driving unit comprises an optical coupler element, an input end of the optical coupler element is connected with an IO pin of the MCU chip, and an output end of the optical coupler element is connected with a contact of the single-pole double-throw relay.
Furthermore, the dial switch group comprises four dial switches, the four dial switches simulate binary digital signals and input pulse modulation instructions to the MCU chip, and the output end of the MCU chip is connected with a display unit.
Further, the display unit comprises three light emitting diodes, and the three light emitting diodes are used for displaying preset values of binary digital signals.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model is provided with a control unit, a collection unit, a drive unit and an input unit; the control unit comprises an MCU chip; the acquisition unit comprises a roller signal acquisition circuit and a pulse acquisition circuit for acquiring signals of the speed measurement sensor, the input end of the pulse acquisition circuit is connected with the output end of the speed measurement sensor, and the output end of the pulse acquisition circuit is connected with an input pin of the MCU chip; the input unit comprises a dial switch group, and the dial switch group is connected with an input pin of the MCU chip; the output end of the MCU chip is connected with the PLC control system through a driving unit; the MCU chip, the pulse acquisition circuit and the driving unit correspond to the left part and the right part in two.
During operation, the left part and the right part move the two speed measuring sensors to respectively operate, the counting pulse is transmitted to the MCU chip, meanwhile, the MCU chip also reads an input instruction of the dial switch group, the MCU chip corrects the counting pulse according to the input instruction of the dial switch group and outputs the modulated counting pulse to the PLC control system, and the PLC control system calculates the operating distance of the turner according to the modulated counting pulse due to the change of the counting pulse, so that the operating distance of the turner is matched with the actual condition.
Drawings
Fig. 1 is the utility model discloses an electric schematic diagram of turning machine operation pulse modulation device based on singlechip.
The reference numbers in the drawings are as follows: 1 is the tacho sensor, 2 is the MCU chip, and 3 are pulse acquisition circuit, and 4 are cylinder signal acquisition circuit, and 5 are dial switch group, and 6 are single-pole double-throw relay, 7 are optical coupling element, and 8 are display element.
Detailed Description
The invention will be further explained with reference to the drawings and the detailed description below:
example 1
As shown in fig. 1, a turning machine operation pulse modulation device based on a single chip microcomputer comprises a left part, a right part and a roller of the turning machine, a PLC control system for controlling the left part, the right part and the roller of the turning machine to operate, and two speed measurement sensors 1 connected with the PLC control system, wherein the two speed measurement sensors 1 are respectively arranged on the left part and the right part, the PLC control system counts pulses according to the speed measurement sensors 1 to calculate the operation distance of the turning machine, a pulse modulation device is arranged between the PLC control system and the speed measurement sensors 1, and the pulse modulation device comprises a control unit, an acquisition unit, a driving unit and an input unit;
the control unit comprises an MCU chip 2;
the acquisition unit comprises a roller signal acquisition circuit 4 and a pulse acquisition circuit 3 for acquiring signals of the speed measuring sensor 1, wherein the input end of the pulse acquisition circuit 3 is connected with the output end of the speed measuring sensor 1, and the output end of the pulse acquisition circuit 3 is connected with an input pin of the MCU chip 2;
the input unit comprises a dial switch group 5, and the dial switch group 5 is connected with an input pin of the MCU chip 2;
the output end of the MCU chip 2 is connected with the PLC control system through a driving unit;
the MCU chip 2, the pulse acquisition circuit 3 and the driving unit correspond to the left part and the right part in two.
For simplifying the circuit structure, the pulse acquisition circuit 3 comprises an LM319 operational amplifier circuit, wherein the in-phase end of the LM319 operational amplifier circuit is connected with the output end of the speed measurement sensor 1, and the output end of the LM319 operational amplifier circuit is connected with the IO pin of the MCU chip 2.
In order to switch the operation state of the equipment and ensure that the equipment does not participate in modulation work when the turner is in a non-operation state, the roller signal acquisition circuit 4 comprises an ML358 operational amplifier circuit and a single-pole double-throw relay 6, the in-phase end of the ML358 operational amplifier circuit is connected with a normally open contact of an electromagnetic valve of a roller, the output end of the ML358 operational amplifier circuit is connected with a coil of the single-pole double-throw relay 6, one group of contacts of the single-pole double-throw relay 6 is connected with the output end of a driving unit, and the other group of contacts are used for directly connecting the acquired speed measurement sensor 1 signal into a PLC control system.
As an implementation manner, the driving unit includes an optical coupler element 7, an input end of the optical coupler element 7 is connected with an IO pin of the MCU chip 2, and an output end of the optical coupler element 7 is connected with a contact of the single-pole double-throw relay 6.
In order to send a control command manually, the dial switch group 5 comprises four dial switches, the four dial switches simulate binary digital signals to input a pulse modulation command to the MCU chip 2, and the output end of the MCU chip 2 is connected with a display unit 8.
For the convenience of observation, the display unit 8 includes three light emitting diodes, and the three light emitting diodes are used for displaying preset values of binary digital signals.
In this embodiment, the MCU chip 2 is specifically an AT89C51 single chip microcomputer;
when the turner operates, the roller must participate in the work, and if the roller is not started, the stop and the walking action of the turner are both in a non-operation state; the left part and the right part of the turner are respectively provided with a speed sensor 1, one speed sensor 1 is used for detecting the operation speed of the turner, the operation distance of the turner can be calculated through a PLC control system, and the other speed sensor 1 is used as compensation equipment and is used for measuring and calculating whether the current turner operates in a straight line or not through the PLC control system in combination with the speed sensor 1;
when the roller does not start the coil of the single-pole double-throw relay 6, the contact of the single-pole double-throw relay 6 leads the output end of the speed measuring sensor 1 to be connected with the PLC control system;
when the roller is started, the roller electromagnetic valve is firstly electrified for operation, the roller is electrified, a coil of the single-pole double-throw relay 6 is electrified at the same time, a contact of the single-pole double-throw relay 6 is switched to be connected with the driving unit, and the pulse modulation device is connected into the loop;
an input signal of the speed measuring sensor 1 is transmitted to the MCU chip 2 through the LM319 operational amplifier circuit, and the dial switch group 5 is manually adjusted, so that the counting pulse modulation of the speed measuring sensor 1 is realized through a program in the MCU chip 2;
setting four dial switches to dial up to 1 and dial down to 0, inputting different modulation signals to the MCU chip 2 through binary representation, and dividing the counting pulse modulation operation into a plurality of gears corresponding to the program in the MCU chip 2;
if the MCU chip 2 receives that the binary instruction is '0010', the MCU chip 2 performs 9.1% proportional modulation on the received counting pulse of the speed measuring sensor 1, and the modulation signal is transmitted to the PLC control system through the driving unit;
because the modulated pulse interval is enlarged, the PLC control system calculates the operating distance of the turner according to the modulated counting pulse, the original operating distance is prolonged, otherwise, the operating distance of the turner can be shortened;
therefore, the change of the operating distance of the turner is realized, and the operating distance of the turner is matched with the actual workload.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (6)
1. A turner operation pulse modulation device based on a single chip microcomputer comprises a left part, a right part and a roller of a turner, a PLC control system used for controlling the left part, the right part and the roller of the turner to operate and a speed measurement sensor (1) connected with the PLC control system, wherein the number of the speed measurement sensors (1) is two, the two speed measurement sensors are respectively arranged at the left part and the right part, the PLC control system calculates the operation distance of the turner according to the counting pulse of the speed measurement sensor (1), and the turner operation pulse modulation device is characterized in that the pulse modulation device comprises a control unit, an acquisition unit, a driving unit and an input unit, and is arranged between the PLC control system and the speed measurement sensor (1);
the control unit comprises an MCU chip (2);
the acquisition unit comprises a roller signal acquisition circuit (4) and a pulse acquisition circuit (3) for acquiring signals of the speed measurement sensor (1), the input end of the pulse acquisition circuit (3) is connected with the output end of the speed measurement sensor (1), and the output end of the pulse acquisition circuit (3) is connected with an input pin of the MCU chip (2);
the input unit comprises a dial switch group (5), and the dial switch group (5) is connected with an input pin of the MCU chip (2);
the output end of the MCU chip (2) is connected with the PLC control system through a driving unit;
the MCU chip (2), the pulse acquisition circuit (3) and the driving unit correspond to the left part and the right part in two.
2. The single-chip microcomputer-based pulse modulation device for the operation of the turning and throwing machine is characterized in that the pulse acquisition circuit (3) comprises an LM319 operational amplifier circuit, the in-phase end of the LM319 operational amplifier circuit is connected with the output end of the speed measurement sensor (1), and the output end of the LM319 operational amplifier circuit is connected with the IO pin of the MCU chip (2).
3. The single-chip microcomputer-based pulse modulation device for the operation of the turner is characterized in that the roller signal acquisition circuit (4) comprises an ML358 operational amplifier circuit and a single-pole double-throw relay (6), the in-phase end of the ML358 operational amplifier circuit is connected with a normally open contact of an electromagnetic valve of a roller, the output end of the ML358 operational amplifier circuit is connected with a coil of the single-pole double-throw relay (6), one group of contacts of the single-pole double-throw relay (6) is connected with the output end of a driving unit, and the other group of contacts are used for directly connecting the acquired speed measurement sensor (1) signal into a PLC control system.
4. The single-chip microcomputer-based pulse modulation device for operation of the turning and throwing machine is characterized in that the driving unit comprises an optical coupling element (7), the input end of the optical coupling element (7) is connected with the IO pin of the MCU chip (2), and the output end of the optical coupling element (7) is connected with the contact of the single-pole double-throw relay (6).
5. The pulse modulation device for the operation of the turning and throwing machine based on the single chip microcomputer according to claim 1, wherein the dial switch group (5) comprises four dial switches, the four dial switches simulate binary digital signals and input pulse modulation instructions to the MCU chip (2), and the output end of the MCU chip (2) is connected with a display unit (8).
6. The pulse modulation device for the operation of the turning machine based on the single chip microcomputer according to claim 5, wherein the display unit (8) comprises three light emitting diodes, and the three light emitting diodes are used for displaying preset values of binary digital signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123224801.0U CN216486076U (en) | 2021-12-21 | 2021-12-21 | Turning machine operation pulse modulation device based on singlechip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123224801.0U CN216486076U (en) | 2021-12-21 | 2021-12-21 | Turning machine operation pulse modulation device based on singlechip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216486076U true CN216486076U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123224801.0U Active CN216486076U (en) | 2021-12-21 | 2021-12-21 | Turning machine operation pulse modulation device based on singlechip |
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| Country | Link |
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| CN (1) | CN216486076U (en) |
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2021
- 2021-12-21 CN CN202123224801.0U patent/CN216486076U/en active Active
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