CN109827534A - Length measuring system based on rotary encoder - Google Patents
Length measuring system based on rotary encoder Download PDFInfo
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- CN109827534A CN109827534A CN201711185001.8A CN201711185001A CN109827534A CN 109827534 A CN109827534 A CN 109827534A CN 201711185001 A CN201711185001 A CN 201711185001A CN 109827534 A CN109827534 A CN 109827534A
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Abstract
The present invention relates to length measurement technique field more particularly to a kind of length measuring systems based on rotary encoder.Including PLC；The PLC is connected with the thick school governor of control, cold rolling molding governor, plate shearing machine control and product conveying control respectively；The PLC controls thick school governor, cold rolling molding governor, plate shearing machine control and the operation of product conveying control；The PLC is connected with touch screen and two frequency multiplier circuits, and two frequency multiplier circuit is connected with rotary encoder, and the rotary encoder is set on measuring roller.After the present invention carries out two process of frequency multiplication to the two road pulse signals that rotary encoder exports, inputs using PLC as the length measuring system of control processor, substantially increase linear measure longimetry precision and interference rejection ability.
Description
Technical field
The present invention relates to length measurement technique field more particularly to a kind of length measuring systems based on rotary encoder.
Background technique
In recent years, with the rapid development of our country's economy, the motor vehicles such as agricultural tricycle, motor tricycle yield is increasingly
Greatly.Its compartment boxboard is to shape cutter using cold-rolling of steel plate, and made of needing to shear according to physical length, boxboard length is most
Important size index will become waste product as required precision is not achieved in boxboard sheared length, so boxboard shearing is automatic to survey length
Control is to be related to the most critical control technology of production equipment success operation.
Production equipment requires boxboard shear precision are as follows: when boxboard length is 2~6m, it is desirable that error in length are as follows:≤±
3mm.Cold roll forming cutter is the key equipment of automobile-used carriage production, it mainly by uncoiler, thick school machine, flush cutter,
The parts such as cold roll forming roller, measurement roller, plate shearing machine, transport platform are constituted.The carriage cold roll forming cutter control point is more, and length is surveyed
Accuracy of measurement requires high, production scene dispersion, and equipment dependability requirement is high, and the present invention is devised with the Siemens of model S7-300
Programmable controller (PLC) is the length measuring system of control core.
Summary of the invention
The present invention provides a kind of linear measure longimetry system based on rotary encoder aiming at defect of the existing technology
System.
To achieve the above object, the present invention adopts the following technical scheme that, including PLC；The PLC is slightly tuned up with control respectively
Fast device, cold rolling molding governor, plate shearing machine control and product conveying control are connected；The PLC controls thick school governor, is cold rolled to
The operation of type governor, plate shearing machine control and product conveying control；The PLC is connected with touch screen and two frequency multiplier circuits, described
Two frequency multiplier circuits are connected with rotary encoder, and the rotary encoder is set on measuring roller.
Preferably, the PLC selects S7-300 series of PLC；Complete uncoiling of steel plate, synchronous test sequence, steel plate length certainly
The control functions such as dynamic measurement and shearing, product conveying, fault diagnosis.
Preferably, thick school machine dragging steel plate charging, while the rotary encoder measurement steel plate coaxially connected with length-testing wheel
Its pulse output end is connected by length with the high-speed counter input terminal of PLC；When charging, rotary encoder is with measuring roller
Rotation, and issue counting pulse, PLC instruction according to set by optimization program, control cutter movement.
Preferably, the quantity and length for needing the compartment carriage produced can be set by touch screen, touched in production process
It touches the physical length of screen real-time display carriage and has produced the quantity of carriage；When plate is long close to when being sized, PLC issues control
Signal processed makes drive motor while braking, when end of braking, if actual plate it is long be equal to set plate grow (error as≤±
3mm), plate shearing machine is sheared, and after shearing, dragging motor starts simultaneously, and plate long counter restarts to count；If actual plate
Long (error is greater than ± 3mm) long not equal to setting plate, plate shearing machine is not sheared, and manual intervention is waited.
Preferably, in surveying long control process, PLC high speed counting module receives the rotary encoder pulse after frequency multiplication
Signal is compared with setting plate length, then issues corresponding control instruction to drive motor governor, to adjust dragging electricity
The speed and traffic direction of the motivation speed of service；When measurement plate is long long less than setting plate, the operation of motor forward direction；Work as actual plate
When long long greater than setting plate, motor inverted running, until feedback detected value is equal with setting value.
Beneficial effect of the present invention compared with prior art.
After the present invention carries out two process of frequency multiplication to the two road pulse signals that rotary encoder exports, input is control with PLC
The length measuring system of processor substantially increases linear measure longimetry precision and interference rejection ability.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of the following contents.
Fig. 1 invention's principle block diagram.
Bis- frequency multiplier circuit block diagram of Fig. 2.
Specific embodiment
As shown in Figs. 1-2, the present invention includes PLC；The PLC respectively with control thick school governor, cold rolling molding governor,
Plate shearing machine control and product conveying control are connected；The PLC controls thick school governor, cold rolling molding governor, plate shearing machine control
And the operation of product conveying control；The PLC is connected with touch screen and two frequency multiplier circuits, two frequency multiplier circuit and rotary coding
Device is connected, and the rotary encoder is set on measuring roller.
Further, the PLC selects S7-300 series of PLC；Complete uncoiling of steel plate, synchronous test sequence, steel plate length
The control functions such as automatic measurement and shearing, product conveying, fault diagnosis.
Further, thick school machine dragging steel plate charging, while steel plate is measured with the coaxially connected rotary encoder of length-testing wheel
Length, its pulse output end is connected with the high-speed counter input terminal of PLC；When charging, rotary encoder is with measuring roller one
Rotation is played, and issues counting pulse, PLC instruction according to set by optimization program, control cutter movement.
Further, the quantity and length of the compartment carriage that need to produce can be set by touch screen, in production process
The physical length of touch screen real-time display carriage and the quantity for having produced carriage；When plate is long close to when being sized, PLC is issued
Control signal, make drive motor while braking, when end of braking, if actual plate it is long be equal to set plate grow (error as≤±
3mm), plate shearing machine is sheared, and after shearing, dragging motor starts simultaneously, and plate long counter restarts to count；If actual plate
Long (error is greater than ± 3mm) long not equal to setting plate, plate shearing machine is not sheared, and manual intervention is waited.
Further, in surveying long control process, PLC high speed counting module receives the rotary encoder arteries and veins after frequency multiplication
Signal is rushed, is compared with setting plate length, then issues corresponding control instruction to drive motor governor, to adjust dragging
The speed and traffic direction of motor operating speed；When measurement plate is long long less than setting plate, the operation of motor forward direction；Work as reality
When plate is long long greater than setting plate, motor inverted running, until feedback detected value is equal with setting value.The present invention is to rotation
After two road pulse signals of encoder output carry out two process of frequency multiplication, input using PLC as the linear measure longimetry system of control processor
System, substantially increases linear measure longimetry precision and interference rejection ability.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (5)
1. the length measuring system based on rotary encoder, including PLC；It is characterized in that, the PLC is slightly tuned up with control respectively
Fast device, cold rolling molding governor, plate shearing machine control and product conveying control are connected；The PLC controls thick school governor, is cold rolled to
The operation of type governor, plate shearing machine control and product conveying control；The PLC is connected with touch screen and two frequency multiplier circuits, described
Two frequency multiplier circuits are connected with rotary encoder, and the rotary encoder is set on measuring roller.
2. the length measuring system according to claim 1 based on rotary encoder, it is characterised in that: the PLC is selected
S7-300 series of PLC；Complete uncoiling of steel plate, synchronous test sequence, steel plate length automatic measurement and shearing, product conveying, failure
The control functions such as diagnosis.
3. the length measuring system according to claim 1 based on rotary encoder, it is characterised in that: thick school machine drags steel
Plate charging, while the length of the rotary encoder measurement steel plate coaxially connected with length-testing wheel, by its pulse output end and PLC
High-speed counter input terminal is connected；When charging, rotary encoder is rotated together with measuring roller, and issues counting pulse, PLC root
According to instruction set by optimization program, control cutter movement.
4. the length measuring system according to claim 1 based on rotary encoder, it is characterised in that: can by touch screen
To set the quantity and length of the compartment carriage that need to produce, in production process the physical length of touch screen real-time display carriage and
The quantity of carriage is produced；When plate is long, close to when being sized, PLC issues control signal, makes drive motor while braking,
When end of braking, if the long setting plate that is equal to of actual plate is long, plate shearing machine shearing, after shearing, dragging motor starts simultaneously, plate
Long counter restarts to count；If actual plate is long long not equal to setting plate, plate shearing machine is not sheared, and waits manual intervention.
5. the length measuring system according to claim 1 based on rotary encoder, it is characterised in that: controlled surveying length
Cheng Zhong, PLC high speed counting module receive the rotary encoder pulse signal after frequency multiplication, are compared with setting plate length, so
Backward drive motor governor issues corresponding control instruction, to adjust speed and the operation side of the drive motor speed of service
To；When measurement plate is long long less than setting plate, the operation of motor forward direction；When actual plate is long long greater than setting plate, motor is anti-
To operation, until feedback detected value is equal with setting value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185001.8A CN109827534A (en) | 2017-11-23 | 2017-11-23 | Length measuring system based on rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185001.8A CN109827534A (en) | 2017-11-23 | 2017-11-23 | Length measuring system based on rotary encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109827534A true CN109827534A (en) | 2019-05-31 |
Family
ID=66858806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711185001.8A Pending CN109827534A (en) | 2017-11-23 | 2017-11-23 | Length measuring system based on rotary encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109827534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116851932A (en) * | 2023-06-25 | 2023-10-10 | 广州市西克传感器有限公司 | Steel plate length measurement system based on grating |
-
2017
- 2017-11-23 CN CN201711185001.8A patent/CN109827534A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116851932A (en) * | 2023-06-25 | 2023-10-10 | 广州市西克传感器有限公司 | Steel plate length measurement system based on grating |
| CN116851932B (en) * | 2023-06-25 | 2024-04-05 | 广东西克智能科技有限公司 | Steel plate length measurement system based on grating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190531 |
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| WD01 | Invention patent application deemed withdrawn after publication |