CN114636697A - Nozzle detection device and method for detecting nozzle by using same - Google Patents
Nozzle detection device and method for detecting nozzle by using same Download PDFInfo
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- CN114636697A CN114636697A CN202011468653.4A CN202011468653A CN114636697A CN 114636697 A CN114636697 A CN 114636697A CN 202011468653 A CN202011468653 A CN 202011468653A CN 114636697 A CN114636697 A CN 114636697A
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- 238000001514 detection method Methods 0.000 title claims abstract description 82
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- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000012417 linear regression Methods 0.000 claims description 10
- 238000007405 data analysis Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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Abstract
The invention provides a nozzle detection device, which comprises a computer unit, a detection unit, a feeding mechanism, a support unit and a material taking mechanism, wherein the computer unit, the detection unit, the feeding mechanism and the material taking mechanism are detachably and fixedly connected onto the support unit; the detection unit comprises a detection subunit and a support frame, the detection subunit is installed on the support unit through the support frame and comprises a first camera, a second camera and a rotary table, the feeding mechanism conveys the nozzle to be detected to the rotary table, the first camera and the second camera upload various data of the nozzle to be detected to the computer unit, and the computer unit analyzes and processes the data and judges whether the nozzle to be detected is qualified according to conditions.
Description
Technical Field
The present invention relates to a detection device and a detection method, and more particularly, to a nozzle detection device and a method for detecting a nozzle using the same.
Background
In the prior art, the detection of the nozzle is generally carried out by measuring the concentricity of an inner hole, the average value of the diameter of an orifice and the ovality of the orifice of the nozzle through a connaissance camera, and analyzing and determining whether the nozzle is qualified or not through the connaissance camera according to the three values.
However, the precision of the detection mode is not high, and the mainstream nozzles in the existing market all comprise a Venturi Z-shaped orifice plate structure, so that the atomization effect is better when the nozzles spray liquid by adopting the Venturi Z-shaped orifice plate structure. The method for detecting the nozzle in the current market adopts the method, and the method cannot effectively ensure whether the atomization effect of the nozzle is qualified or not because the method lacks the detection of a Venturi Z-shaped orifice plate in the nozzle. And meanwhile, a visual control interface is lacked, so that the monitoring of the state and the operation data of the equipment cannot be realized.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a nozzle detecting device, including: the device comprises a computer unit, a detection unit, a feeding mechanism, a supporting unit and a material taking mechanism, wherein the computer unit, the detection unit, the feeding mechanism and the material taking mechanism are detachably and fixedly connected onto the supporting unit; the supporting unit spatially encloses the nozzle detection device into a first chamber and a second chamber.
Further, the computer unit, the detection unit and the feeding mechanism are disposed in the first chamber; the material taking mechanism is arranged in the second cavity, the feeding mechanism is communicated with the material taking mechanism, and when the nozzle is conveyed to the detection unit through the feeding mechanism for detection, the detected nozzle flows into the material taking mechanism.
Further, the detecting unit at least comprises a detecting subunit and a supporting member, wherein the detecting subunit is detachably and fixedly connected to the supporting member, and the supporting member is detachably and fixedly connected to the supporting unit, so that the detecting subunit is fixed at a preset position.
Furthermore, the detection subunit is connected with the computer unit in an electric signal connection mode, so that data acquired by the detection subunit are uploaded to the computer unit for data analysis.
Further, the detection subunit comprises a first camera, a second camera and a turntable, wherein the first camera and the second camera are in electrical signal connection with the computer unit, so that data collected by the first camera and the second camera are uploaded to the computer unit for data analysis.
Further, the turntable of the detection subunit is in electrical signal connection with the computer unit, and the computer unit controls the rotation of the turntable.
Furthermore, the number of the detection subunits is 2, the number of the first camera and the number of the second camera are respectively 2, and the first camera, the second camera and the turntable are oppositely arranged, so that the first camera and the second camera can conveniently acquire various data of the nozzles after the nozzles are conveyed to the turntable by the feeding mechanism.
Further, the support unit includes a support frame and a support leg, wherein the computer unit, the detecting unit, the feeding mechanism and the taking mechanism are detachably fixed on the support frame, and the support leg is disposed at the bottom of the support frame to support the whole support frame.
Furthermore, the computer unit is provided with at least one display screen, so that the data collected by the detection unit are uploaded to the computer unit and the result is displayed on the display screen of the computer unit after calculation.
The nozzle detection device provided by the invention has the advantages of simple structure, low manufacturing cost, high detection precision, capability of visually displaying a detection result, convenience for operation of workers and improvement of working efficiency.
The invention also provides a method for detecting the nozzle by using the nozzle detection device, which comprises the following steps:
a. the feeding mechanism conveys the nozzle to be detected to the detection unit;
b. the computer unit controls the turntable of the detection unit to rotate in a preset direction;
c. the first camera and the second camera of the detection unit respectively collect various pre-collected data of the nozzles on the turntable;
d. the first camera and the second camera upload various data of the collected nozzle to the computer unit for analysis and processing;
a. the computer unit uses a machine-learned linear regression model to process and analyze various collected data of the nozzles, after a detection result is obtained, the computer unit controls the material taking mechanism to divide the nozzles into different containers according to the detection result, and then controls the turntable to perform next nozzle detection.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.
Drawings
Fig. 1 is a schematic structural diagram of a nozzle detection device according to the present invention.
Fig. 2 is a schematic structural diagram of a nozzle detection device according to the present invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Referring to fig. 1 and 2, a schematic structural diagram of a nozzle detecting device according to the present invention is shown. The nozzle detection device 00 comprises a computer unit 10, a detection unit 20, a feeding mechanism 30, a supporting unit 40 and a material taking mechanism 50, wherein the computer unit 10, the detection unit 20, the feeding mechanism 30 and the material taking mechanism 50 are detachably and fixedly connected on the supporting unit 40; the supporting unit 40 spatially encloses the nozzle detection device 00 into a first chamber 60 and a second chamber 70.
The computer unit 10, the detection unit 20 and the feeding mechanism 30 are placed in the first chamber 60; the material taking mechanism 50 is disposed in the second chamber 70, the feeding mechanism 30 is in communication with the material taking mechanism 50, and when the nozzle is conveyed to the detecting unit 20 through the feeding mechanism 30 for detection, the detected nozzle flows into the material taking mechanism 50.
The detecting unit 20 at least comprises a detecting subunit 201 and a supporting member 202, wherein the detecting subunit 201 is detachably and fixedly connected to the supporting member 202, and the supporting member 202 is detachably and fixedly connected to the supporting member 40, so that the detecting subunit is fixed at a predetermined position.
The detecting subunit 201 is connected to the computer unit 10 by means of electrical signal connection, so that data collected by the detecting subunit 201 are uploaded to the computer unit 10 for data analysis.
The detection subunit 201 includes a first camera 2011, a second camera 2012 and a turntable 2013, wherein the first camera 2011 and the second camera 2012 are electrically connected to the computer unit 10, so that the data collected by the first camera 2011 and the second camera 2012 are uploaded to the computer unit 10 for data analysis.
The turntable 2013 of the detection subunit 201 is electrically connected with the computer unit 10, and the computer unit 10 controls the rotation of the turntable 2013. After the nozzles are transported to the turntable 2013 by the feeding mechanism 30, the computer unit 10 controls the rotation of the turntable 2013 so that the turntable 2013 rotates in a predetermined direction for a certain range, and at this time, the first camera 2011 and the second camera 2012 of the detection subunit 201 upload the numerical values of the respective forms of the nozzles on the turntable 2013 to the computer unit 10 for analysis. The first camera 2011 and the second camera 2012 collect data such as the size of the inner hole of the nozzle, the concentricity of a plurality of inner holes, the elliptical deformation data of the orifice, the numerical value of the venturi Z hole and the like which rotate on the turntable 2013.
It is understood by those skilled in the art that the number of the detecting sub-units 201 is not limited, and may be determined according to the requirement, and preferably, in the nozzle detecting device provided by the present invention, the number of the detecting sub-units 201 is 2. Therefore, the present invention provides a nozzle detection apparatus 00 having 2 first cameras 2011, 2 second cameras 2012, and 2 turntables 2013. It should be noted that the first camera 2011, the second camera 2012 and the turntable 2013 are oppositely arranged, so that the first camera 2011 and the second camera 2012 can conveniently acquire various data of the nozzle after the nozzle is conveyed to the turntable 2013 by the feeding mechanism 30.
It should be understood by those skilled in the art that the types of the first camera 2011 and the second camera 2012 in the nozzle detection apparatus provided by the present invention are not limited as long as the first camera 2011 and the second camera 2012 can complete the collection of various data of the nozzles. Preferably, in the nozzle detection apparatus provided by the present invention, the first camera 2011 is a conraday camera, and the second camera 2012 is a kirschner camera.
The support unit 40 of a nozzle detecting device 00 provided by the present invention comprises a support frame 401 and a support leg 402, wherein the computer unit 10, the detecting unit 20, the feeding mechanism 30 and the material taking mechanism 50 are detachably fixed on the support frame 401, and the support leg 402 is arranged at the bottom of the support frame 401 to support the whole support frame 401. It should be understood by those skilled in the art that the structure of the support frame 401 and the support leg 402 is not limited.
The computer unit 10 of the nozzle detection device 00 provided by the invention comprises at least one display screen, so that data acquired by the detection unit 20 are uploaded to the computer unit 10, and a result is displayed on the display screen of the computer unit 10 after calculation, thereby realizing the visualization function of the nozzle detection device provided by the invention, and a user can intuitively observe the operation state of the whole device and whether the nozzle is detected to be qualified.
The nozzle detection device provided by the invention has the advantages of simple structure, low manufacturing cost, high detection precision, capability of visually displaying a detection result, convenience for operation of workers and improvement on working efficiency.
The invention also provides a method for detecting the nozzle by using the nozzle detection device, which comprises the following steps:
a. the feeding mechanism 30 conveys the nozzle to be detected to the detection unit 20;
b. the computer unit 10 controls the rotation of the turntable 2013 of the detection unit 20 in a preset direction;
c. the first camera 2011 and the second camera 2013 of the detection unit 20 respectively collect each item of data pre-collected by the nozzles on the turntable 2013;
d. the first camera 2011 and the second camera 2012 upload the acquired data of the nozzles to the computer unit 10 for analysis;
e. the computer unit 10 processes and analyzes various collected data of the nozzles by using a machine-learned linear regression model, and after a detection result is obtained, the computer unit 10 controls the material taking mechanism 50 to divide the nozzles into different containers according to the detection result, and then the computer unit 10 controls the turntable 2013 to perform next nozzle detection.
The linear regression model provided in a detection method using the nozzle detection device according to the present invention refers to a regression analysis for modeling the relationship between one or more independent variables and dependent variables using the least square function of a linear regression equation. The case of only one independent variable is called simple regression, and the case of more than one independent variable is called multivariate linear regression. In the nozzle detection, because the independent variable of the nozzle comprises a plurality of inner hole concentricity, an orifice diameter average value, orifice ellipticity, a Venturi Z orifice plate and the like, and the dependent variable is whether the nozzle is qualified or not, the multivariate linear regression is used accurately.
Given a random sample (Yi, Xi1, …, Xip), i ═ 1 … n, a linear regression model assumes that the relationship between the regression values Yi and the regression quantities Xi1, …, Xip has other variables in addition to the effect of X.
Yi＝β0+β1Xi1+β2Xi2+…+βm Xim+εi，i＝1…n
Expressed in a matrix as:
Y＝Xβ+ε
the purpose of linear regression is to estimate the parameters of the model in order to achieve the best fit to the data, i.e. to minimize the sum of squared errors. We can estimate the coefficient β using the least squares method, i.e.
In the nozzle detection, X is a plurality of regressions such as inner hole concentricity, an average value of orifice diameters, orifice ovality, a Venturi Z-shaped orifice plate and the like, Y is whether the nozzle is qualified or not, wherein 1 is used for representing that the nozzle is qualified, and 0 is used for representing that the nozzle is unqualified. We first calculated the estimation coefficient β by linear regression using 30000 training samples, so we have established a linear equation between Y and X. During each nozzle detection, parameters such as the inner hole concentricity, the orifice diameter average value, the orifice ellipticity, the Venturi Z-shaped orifice plate and the like of the nozzle, which are acquired from the camera, are substituted into a linear equation as X, and Y is solved, so that whether the nozzle is qualified or not can be known.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. A nozzle detection apparatus, comprising: the device comprises a computer unit, a detection unit, a feeding mechanism, a supporting unit and a material taking mechanism, wherein the computer unit, the detection unit, the feeding mechanism and the material taking mechanism are detachably and fixedly connected onto the supporting unit; the supporting unit spatially encloses the nozzle detection device into a first chamber and a second chamber.
2. A nozzle testing device according to claim 1, wherein said computer unit, said testing unit and said feeding mechanism are disposed in said first chamber; the material taking mechanism is arranged in the second cavity, the feeding mechanism is communicated with the material taking mechanism, and when the nozzle is conveyed to the detection unit through the feeding mechanism for detection, the detected nozzle flows into the material taking mechanism.
3. A nozzle testing device according to claim 2, wherein said testing unit comprises at least a testing subunit and a supporting member, wherein said testing subunit is detachably and fixedly connected to said supporting member, and said supporting member is detachably and fixedly connected to said supporting unit, so that said testing subunit is fixed at a predetermined position.
4. A nozzle testing device according to claim 3, wherein said testing sub-unit is connected to said computer unit by means of electrical signal connections, such that data collected by said testing sub-unit is uploaded to said computer unit for data analysis.
5. A nozzle testing device according to claim 4, wherein said testing sub-unit comprises a first camera, a second camera and a turntable, wherein said first camera and said second camera are electrically connected to said computer unit, such that data collected by said first camera and said second camera is uploaded to said computer unit for data analysis.
6. A nozzle detection device as claimed in claim 5, wherein the turntable of said detection subunit is in electrical communication with said computer unit, and said computer unit controls the rotation of said turntable.
7. A nozzle testing device according to claim 6, wherein the number of said testing sub-units is 2, the number of said first camera and said second camera is 2, and said first camera, said second camera and said turntable are arranged oppositely, so that said first camera and said second camera can conveniently collect data of the nozzle after the nozzle is conveyed to said turntable by said feeding mechanism.
8. A nozzle testing device according to claim 7, wherein said support unit comprises a frame and a support leg, wherein said computer unit, said testing unit, said feeding mechanism and said taking mechanism are detachably fixed to said frame, and said support leg is disposed at the bottom of said frame for supporting the entire frame.
9. A nozzle testing device according to any of claims 1-9, wherein said computer unit has at least one display screen, such that data collected by said testing unit is uploaded to said computer unit and calculated to display the result on the display screen of said computer unit.
10. A method of inspecting nozzles using the nozzle inspecting apparatus as set forth in claim 9, comprising the steps of:
a. the feeding mechanism conveys the nozzle to be detected to the detection unit;
b. the computer unit controls the turntable of the detection unit to rotate in a preset direction;
c. the first camera and the second camera of the detection unit respectively collect various pre-collected data of the nozzles on the turntable;
d. the first camera and the second camera upload various data of the collected nozzle to the computer unit for analysis and processing;
e. the computer unit uses a machine-learned linear regression model to process and analyze various collected data of the nozzles, after a detection result is obtained, the computer unit controls the material taking mechanism to divide the nozzles into different containers according to the detection result, and then controls the turntable to perform next nozzle detection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468653.4A CN114636697A (en) | 2020-12-16 | 2020-12-16 | Nozzle detection device and method for detecting nozzle by using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011468653.4A CN114636697A (en) | 2020-12-16 | 2020-12-16 | Nozzle detection device and method for detecting nozzle by using same |
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| Publication Number | Publication Date |
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| CN114636697A true CN114636697A (en) | 2022-06-17 |
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| CN202011468653.4A Pending CN114636697A (en) | 2020-12-16 | 2020-12-16 | Nozzle detection device and method for detecting nozzle by using same |
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- 2020-12-16 CN CN202011468653.4A patent/CN114636697A/en active Pending
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