CN106092000A - A kind of ultrasonic sensor for packing machine - Google Patents
A kind of ultrasonic sensor for packing machine Download PDFInfo
- Publication number
- CN106092000A CN106092000A CN201610568061.7A CN201610568061A CN106092000A CN 106092000 A CN106092000 A CN 106092000A CN 201610568061 A CN201610568061 A CN 201610568061A CN 106092000 A CN106092000 A CN 106092000A
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- Prior art keywords
- ultrasonic
- packing machine
- displacement sensor
- value
- sensor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
Abstract
The invention provides a kind of ultrasonic sensor for packing machine, be arranged on above flour bag, ultrasonic sensor range selects 500 millimeters of scopes, and dead zone location is 0 50 millimeters.Present invention also offers a kind of measured value for the ultrasonic sensor of packing machine and determine method, making ultrasonic displacement sensor is Y with the distance of flour bag, it is X that ultrasonic displacement sensor inputs to the digital quantity of PLC control system, X is collection value, range finding according to ultrasonic displacement sensor for linear, set up the functional relation of Y Yu X be Y=KX+B wherein, X is independent variable, Y is dependent variable, and Y is the linear function of X；K, B are parameter value.The ultrasonic sensor for packing machine of the present invention efficiently avoid above drawback, can stably realize bag face altimetric compensation and unnecessary warning will not occur, and operative employee, without considering bag face compensation problem, achieves simple operation to greatest extent.
Description
Technical field
The present invention relates to packing machine field, a kind of ultrasonic sensor for packing machine.
Background technology
Packing machine is generally used for packing all kinds of cereal product, such as flour, rice etc., and the feed bin in packing machine is the most artificial
The flour bag height placed may be different, or in the course of the work, are likely to be due to pump part flour bag artificially, so can be real
Time ground detection flour bag height and carry out suitable control, be one of the difficult point of packing machine Automated condtrol.
If depending merely on artificial compensation's flour bag height, having a following defect: 1, artificial compensation's process is loaded down with trivial details, and once operator forgets
Remember that some operation will stop production by equipment；2, artificial compensation's value is difficult to search out, namely cannot arrange correct compensation numerical value, can only
It is to guess without foundation to carry out again producing checking, so unnecessary equipment alarm can be caused；3, taking out flour bag system artificially cannot
Perception, causes and compensates unsuccessfully.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of ultrasound wave for packing machine and pass
Sensor, is arranged on above flour bag, and ultrasonic sensor range selects 500 millimeters of scopes, and dead zone location is 0-50 millimeter.
Present invention also offers a kind of measured value for the ultrasonic sensor of packing machine and determine method, make ultrasound wave position
Displacement sensor is Y with the distance of flour bag, and it is that X, X are for gathering that ultrasonic displacement sensor inputs to the digital quantity of PLC control system
Value,
Range finding according to ultrasonic displacement sensor is for linear, and the functional relation setting up Y with X is
Y=KX+B
Wherein, X is independent variable, and Y is dependent variable, and Y is the linear function of X.K, B are parameter value；
First determining the theoretical value of slope K, measurement scope 60-500mm of ultrasonic displacement sensor, PLC control system is adopted
A/D module be 0-10V, resolution is 0-250；
Thus, theoretical value K=(the 500-60)/250=1.76 of slope K；
Again determine the theoretical value of intercept B；
Determine according to dead zone location, B=60
Therefore, the linear function relational expression theory relation of Y Yu X is Y=1.76X+60.
Further, the method averaged is used to adjust the numerical value of K and B.
Further, by repeatedly manual change's bag face height, and by the degree of contrast of the height of tape measure Yu calculating,
Tuning function relational expression:
After adjusted, use K=1.76, B=62.
The ultrasonic sensor for packing machine of the present invention efficiently avoid above drawback, can stably realize bag
Face altimetric compensation and unnecessary warning will not occur, operative employee, without considering bag face compensation problem, realizes to greatest extent
Simple operation.
Accompanying drawing explanation
Fig. 1 is ultrasonic displacement sensor range finding schematic diagram.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
In packing machine normally produces, the flour bag in feed bin can ceaselessly be pumped, and bag face height is gradually reduced.In order to protect
Barrier flour bag captures structure (vacuum cup) can stably grab flour bag, so must assure that a bag face height is maintained at one every time
Fixed altitude range.It is to say, if bag face height is too low, vacuum cup will be unable to touch flour bag, and causes flour bag to grab
Take failure.
The ultrasonic sensor for packing machine of the present invention can measure a bag face present level exactly；Mensuration obtains flour bag
After present level, execution structure (servosystem) drives flour bag to move up and down and compensates.
Owing to this packing machine is for flour processing industry, flour dust is relatively big, so light wave measurement sensor is not suitable for
Flour processing industry.
The ultrasonic sensor range for packing machine of the present invention selects 500 millimeters of scopes, and dead zone location is 0-50 millimeter, peace
It is contained in above flour bag.
As it is shown in figure 1, making ultrasonic displacement sensor is variable Y with the distance of flour bag, unit is mm.Owing to ultrasound wave passes
The digital quantity that sensor measurement obtains is not concrete distance, obtains flour bag height after needing to convert.
The digital quantity making ultrasonic displacement sensor input to PLC control system be X, X be collection value.
So, being linear according to the range finding of ultrasonic displacement sensor, the functional relation setting up Y with X is
Y=KX+B
Wherein, X is independent variable, and Y is dependent variable, and Y is the linear function of X.K, B are parameter value.
First the theoretical value of slope K is determined.According to sample data, measurement scope 60-of ultrasonic displacement sensor
500mm, the A/D module that PLC system is used is 0-10V, and resolution is 0-250.
Thus, theoretical value K=(the 500-60)/250=1.76 of slope K
Again determine the theoretical value of intercept B.
Determine according to dead zone location, B=60
Therefore, the linear function relational expression theory relation of Y Yu X is Y=1.76X+60
Mathematical model is perfect, i.e. can be debugged by great many of experiments and adjust mathematical model, to set up actual functional relation.
Because due to the external influence interference producing wiring, its theoretical value has certain deviation with actual, it is necessary to by experiment to letter
Number relational expression is adjusted.
The method averaged can be used to be adjusted the numerical value of K and B.
Such as by repeatedly manual change's bag face height, and by the degree of contrast of the height of tape measure Yu calculating, adjust
Functional relation.
After adjusted, the K=1.76 of employing, B=62 can meet manufacturing technique requirent.
Claims (4)
1., for a ultrasonic sensor for packing machine, it is arranged on above flour bag, it is characterised in that: ultrasonic sensor range
Selecting 500 millimeters of scopes, dead zone location is 0-50 millimeter.
2. the measured value for the ultrasonic sensor of packing machine as claimed in claim 1 determines a method, and its feature exists
In:
Making ultrasonic displacement sensor is Y with the distance of flour bag, and ultrasonic displacement sensor inputs to the numeral of PLC control system
Amount is collection value for X, X,
Range finding according to ultrasonic displacement sensor is for linear, and the functional relation setting up Y with X is
Y=KX+B
Wherein, X is independent variable, and Y is dependent variable, and Y is the linear function of X；K, B are parameter value；
First determining the theoretical value of slope K, measurement scope 60-500mm of ultrasonic displacement sensor, PLC control system is adopted
A/D module be 0-10V, resolution is 0-250；
Thus, theoretical value K=(the 500-60)/250=1.76 of slope K；
Again determine the theoretical value of intercept B；
Determine according to dead zone location, B=60
Therefore, the linear function relational expression theory relation of Y Yu X is Y=1.76X+60.
3. measured value as claimed in claim 2 determines method, it is characterised in that: use the method averaged to adjust K's and B
Numerical value.
4. measured value as claimed in claim 3 determines method, it is characterised in that: by repeatedly manual change's bag face height, and
By the degree of contrast of the height of tape measure Yu calculating, Tuning function relational expression:
After adjusted, use K=1.76, B=62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610568061.7A CN106092000A (en) | 2016-07-19 | 2016-07-19 | A kind of ultrasonic sensor for packing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610568061.7A CN106092000A (en) | 2016-07-19 | 2016-07-19 | A kind of ultrasonic sensor for packing machine |
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| Publication Number | Publication Date |
|---|---|
| CN106092000A true CN106092000A (en) | 2016-11-09 |
Family
ID=57221147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610568061.7A Pending CN106092000A (en) | 2016-07-19 | 2016-07-19 | A kind of ultrasonic sensor for packing machine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000009837A (en) * | 1998-06-26 | 2000-01-14 | Nkk Corp | Ultrasonic distance measurement method |
| WO2004105998A1 (en) * | 2003-05-28 | 2004-12-09 | Puchegger U. Beisteiner Parkett Gross U. Einzelhandels Ges.M.B.H. | Floor sanding machine |
| CN201034572Y (en) * | 2007-03-30 | 2008-03-12 | 齐齐哈尔轨道交通装备有限责任公司 | Car coupler altitude measurement instrument |
| CN103322949A (en) * | 2013-05-31 | 2013-09-25 | 陈宗立 | Device capable of detecting workpiece height |
-
2016
- 2016-07-19 CN CN201610568061.7A patent/CN106092000A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000009837A (en) * | 1998-06-26 | 2000-01-14 | Nkk Corp | Ultrasonic distance measurement method |
| WO2004105998A1 (en) * | 2003-05-28 | 2004-12-09 | Puchegger U. Beisteiner Parkett Gross U. Einzelhandels Ges.M.B.H. | Floor sanding machine |
| CN201034572Y (en) * | 2007-03-30 | 2008-03-12 | 齐齐哈尔轨道交通装备有限责任公司 | Car coupler altitude measurement instrument |
| CN103322949A (en) * | 2013-05-31 | 2013-09-25 | 陈宗立 | Device capable of detecting workpiece height |
Non-Patent Citations (1)
| Title |
|---|
| 吴有明: "一种超声波传感器精确测高控制的设计及实现", 《南宁职业技术学院学报》 * |
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Application publication date: 20161109 |