CN103230880A - Rapid nondestructive detection apparatus of vacuum degrees of containers, and detection method thereof - Google Patents
Rapid nondestructive detection apparatus of vacuum degrees of containers, and detection method thereof Download PDFInfo
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- CN103230880A CN103230880A CN2013101060236A CN201310106023A CN103230880A CN 103230880 A CN103230880 A CN 103230880A CN 2013101060236 A CN2013101060236 A CN 2013101060236A CN 201310106023 A CN201310106023 A CN 201310106023A CN 103230880 A CN103230880 A CN 103230880A
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Abstract
The invention discloses a rapid nondestructive detection apparatus of the vacuum degrees of containers. The apparatus comprises a conveyer, a detection module, a control processing module and a rejecting device; the conveyer is used for conveying a container to be detected; the detection module is used for enabling the container to be detected to emit an electromagnetic pulse signal, and picking a sound generated by the electromagnetic pulse signal; the control processing module is used for processing sound data to obtain the examination data of the container to be detected, and compares the examination data with qualified standard data to determine that whether the vacuum degree of the container to be detected is qualified or not; and the rejecting device is used for ejecting defective containers. The invention also provides a rapid nondestructive detection method of the vacuum degrees of the container. The apparatus and the method can realize the accurate, rapid and nondestructive detection of the vacuum degrees of the containers of canned and bottled food beverages in the production line, and the rejection of defective containers.
Description
Technical field
The present invention relates to a kind of container vacuum rapid non-destructive detecting device and detection method, relate in particular to degree detection device of vacuum and detection method on the food and drink production line of pop can, vial, glass bottle packaging.
Background technology
Existing canned bottled (pop can, vial, vial) food and drink is one of food and drink that can long preservation in the daily life, for guarantee that its inner food, beverage never degenerate in the longer-term storage process, the vacuum (malleation or negative pressure) in the used container must reach certain numerical value.The container of good seal will keep certain vacuum after exhaust, and its meaning is: prevent that 1. the variable color of container thing, oxidation from reducing nutritive loss; 2. slow down the container inner wall corrosion, avoid fat tin of container deformation and vacation; 3. the temperature that conforms and air pressure change; 4. suppress the breeding of container aerobic microorganism.Therefore, vacuum is the important indicator that detects the seal of vessel degree, guarantees its quality.
The method of the used container vacuum measurement of canned bottled food and drink has multiple, as manually beating inspection method, cover distortion ocular estimate, vacuum meter detection method, audible test method, optical method, electric vortex method, ultrasonic Detection Method, vacuum meter detection method and manually beating inspection method etc.
Manually beat the inspection method: be a kind of manual method, the hand-held woodenware of tester beats container, judges whether certain vacuum according to sound, and manually beating the inspection method is to rely on the experience that detects the worker to operate, and not only efficient is low but also the reliability extreme difference.
Cover distortion ocular estimate: this method shortcoming is the same with the artificial inspection method of beating, and is a kind of primitive method that should eliminate.
The vacuum meter detection method: be a kind of destructive detection method, a kind of destructive detection method, it is that a draw point is inserted internal tank, and the outer end of needle tubing links to each other with vacuum meter, observes throw of pointer direction and the reading of table, and it is qualified to judge whether.
Optical method (or claiming reflection method): collimated light beam is projeced on the container cover, owing to the different convergent point differences that make catoptrical converging light of the degree of deformation of container cover, by the size of photocell detection photoelectric current, and inappropriate container is rejected; But material is inhomogeneous and the measurand vibration all can bring measure error.
Audible test method: utilize mechanical force or electromagnetic force to make the cover vibration send certain sound wave, then by checkout gear sound wave is carried out spectrum analysis.Only be suitable for single container and detect, can not finish one group of container and detect simultaneously, and detection speed is slow, be subject to the workshop condition audio frequency and disturb, and it is bigger influenced by the cap surface thing, and practical application is restricted.
Electric vortex method: utilize the current vortex range measurement principle to measure the container cover elastic deformation amount and converse vacuum again, have factor affecting precision such as measure error correction and extraneous vibration.
In a word, the vacuum meter direct method of measurement, manually beat the low and reliability extreme difference of inspection method, cover distortion ocular estimate efficient; Audible test method, optical method use limited; Electric vortex method for the production of line measure automatically, error is big.Said method can't be used for high speed detection of dynamic on canned bottled food and drink factory encapsulation back or the preceding conveyer belt that dispatches from the factory.
Along with domestic growth in the living standard, the consumer is to the pay attention to day by day of quality, being extensive use of of automatic production line, make the container vacuum of canned bottled food and drink production industry detect the significantly raising that to satisfy productivity ratio, manufacturing enterprise often judges that because of vacuum distortion causes unnecessary the doing over again of finished product, and economic loss is bigger.
In sum, current shortage can be used for accurate, quick, the harmless checkout equipment of canned bottled food and drink container on the production line.
Summary of the invention
For solving above-mentioned middle problem and the defective that exists, the invention provides a kind of container vacuum rapid non-destructive detecting device and detection method.Described technical scheme is as follows:
A kind of container vacuum rapid non-destructive detecting device comprises:
Conveyer, detection module, control processing module and device for eliminating;
Described conveyer is for delivery of container to be checked;
Described detection module is used for making container to be checked send electromagnetic pulse signal, and picks up the sound that electromagnetic pulse signal produces;
Described control processing module for the treatment of voice data, obtains the check data of container to be checked, and whether described check data and criterion of acceptability data is qualified to recently judging container vacuum to be checked;
Described device for eliminating is used for rejecting defective container.
A kind of container vacuum fast non-destructive detection method comprises:
Carry container to be checked to detection module;
Detected signal is transferred to electromagnetic pulse generator;
Drive the electromagnetic pulse probe and send electromagnetic pulse to container to be checked, and make container to be checked produce sound;
Pick up the sound that container to be checked produces;
The voice data that picks up is handled, obtained the check data of container to be checked;
Check data and the contrast of criterion of acceptability data are judged whether container vacuum to be checked is qualified;
Reject defective container.
The beneficial effect of technical scheme provided by the invention is:
Can be on production line accurately, fast, the harmless canned bottled food and drink container vacuum of detection, reject defective work.
Description of drawings
Fig. 1 is container vacuum rapid non-destructive detecting device structure chart;
Fig. 2 is at production line upper container vacuum quick nondestructive testing process structural representation;
Fig. 3 is container vacuum fast non-destructive detection method flow chart.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2, the testing process structure on production line for container vacuum rapid non-destructive detecting device structure and this equipment, described equipment comprises: conveyer 1, detection module 3, control processing module 4 and device for eliminating 5; Described conveyer is for delivery of container 2 to be checked; Described detection module is used for making container to be checked send electromagnetic pulse signal, and picks up the sound that electromagnetic pulse signal produces; Described control processing module for the treatment of voice data, obtains the check data of container to be checked, and whether described check data and criterion of acceptability data is qualified to recently judging container vacuum to be checked; Described device for eliminating is used for rejecting defective container 6.
Above-mentioned conveyer with container to be checked be transported to detection module below.
Above-mentioned detection module comprises: optoelectronic switch, electromagnetic pulse generator, electromagnetic pulse probe and sound pickup model; Described
Whether optoelectronic switch detects container to be checked and arrives below the electromagnetic pulse probe, and detected signal is passed to electromagnetic pulse generator.
Electromagnetic pulse generator is made up of chip controls circuit and high-tension circuit, and wherein the chip controls circuit sends instruction according to required electromagnetic intensity and gives high-tension circuit; High-tension circuit is used for the instruction that the receiving chip control circuit sends, and exports different magnitudes of voltage.
The electromagnetic pulse probe is made up of different number of turn insulated coils, is used for sending electromagnetic pulse and impacts container top, and container top is sounded, and sends the electromagnetic pulse of 5000-5 ten thousand Hz and impacts container top, and container top is sounded.
The sound pickup model is made up of microphone and holding circuit, is used for the sound that send at the receiving vessel top.
Above-mentioned control processing module comprises: sound signal processing module, digital signal processing module and quality comparison module; Described
The sound signal processing module is made up of chip controls circuit circuit board, and the sound for the treatment of the sound pickup model picks up is about to the sound waveform digitlization, removes useless noise data; When removing useless noise data, the highest part of the sound intensity of intercepting 400-3000Hz is removed and is lower than 80 decibels voice data.
Digital signal processing module is made up of high-speed dsp chip controls circuit circuit board, the time domain data that is used for the acoustic processing resume module is come out changes into frequency domain data, seek amplitude H1, the H2 of two the highest crests of amplitude and frequency range K1, the K2 of these two crests, H1, H2 and K1, K2 are check data, and transfer data to the quality comparison module.
The quality comparison module judges relatively with check data and criterion of acceptability data whether container vacuum to be checked is qualified.Be the bound that H1, H2 and K1, K2 all do not exceed criterion of acceptability data H1 ', H2 ' and K1 ', K2 ', be certified products, otherwise be defective work.
Above-mentioned device for eliminating is made up of PLC controller and actuating unit, is used for the instruction that the combine digital processing module is sent.Result according to the quality comparison module draws rejects defective work by PLC controller and actuating unit.
Present embodiment also provides a kind of container vacuum fast non-destructive detection method, and as shown in Figure 3, this method comprises:
The tut data are handled and are comprised: with the sound waveform datumization, remove useless noise data; When removing useless noise data, the highest part of the sound intensity of intercepting 400-3000Hz is removed and is lower than 80 decibels voice data, the time domain data after obtaining handling; Convert time domain data to frequency domain data.
Above-described embodiment is applicable to that the container vacuum quick nondestructive on the production line detects.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a container vacuum rapid non-destructive detecting device is characterized in that described equipment comprises: conveyer, detection module, control processing module and device for eliminating;
Described conveyer is for delivery of container to be checked;
Described detection module is used for making container to be checked send electromagnetic pulse signal, and picks up the sound that electromagnetic pulse signal produces;
Described control processing module for the treatment of voice data, obtains the check data of container to be checked, and whether described check data and criterion of acceptability data is qualified to recently judging container vacuum to be checked;
Described device for eliminating is used for rejecting defective container.
2. container vacuum rapid non-destructive detecting device according to claim 1 is characterized in that described detection module comprises: optoelectronic switch, electromagnetic pulse generator, electromagnetic pulse probe and sound pickup model;
Described optoelectronic switch is used for the detected tank signal to be checked of transmission;
Described electromagnetic pulse generator is used for driving the electromagnetic pulse probe and sends electromagnetic pulse to container to be checked;
Described sound pickup model is used for picking up container to be checked and is subjected to electromagnetic pulse to impact the sound that produces.
3. container vacuum rapid non-destructive detecting device according to claim 1 is characterized in that, described control processing module comprises: sound signal processing module, digital signal processing module and quality comparison module;
Described sound signal processing module, the voice data of obtaining for the treatment of the sound pickup model;
Described digital signal processing module for the treatment of the data after the sound signal processing resume module, obtains the check data of container to be checked;
Described quality comparison module is used for check data and the contrast of criterion of acceptability data are judged whether container vacuum to be checked is qualified.
4. container vacuum rapid non-destructive detecting device according to claim 2 is characterized in that,
Described electromagnetic pulse generator is made up of chip controls circuit and high-tension circuit;
Described electromagnetic pulse probe is made up of different number of turn insulated coils, and sends the electromagnetic pulse of 5000-5 ten thousand Hz;
Described sound wave pickup model is made up of microphone and holding circuit.
5. container vacuum rapid non-destructive detecting device according to claim 3 is characterized in that,
Described sound signal processing module is made up of chip controls circuit circuit board;
Described digital signal processing module is made up of the integrated version of high-speed dsp chip controls circuit.
6. container vacuum rapid non-destructive detecting device according to claim 1 is characterized in that described device for eliminating is made up of PLC controller and actuating unit, is used for the instruction that the combine digital signal processing module sends.
7. according to any described container vacuum rapid non-destructive detecting device of claim 1-6, it is characterized in that described checkout equipment detects for the production of the container vacuum quick nondestructive on the line.
8. container vacuum fast non-destructive detection method is characterized in that described method comprises:
Carry container to be checked to detection module;
Detected signal is transferred to electromagnetic pulse generator;
Drive the electromagnetic pulse probe and send electromagnetic pulse to container to be checked, and make container to be checked produce sound;
Pick up the sound that container to be checked produces;
The voice data that picks up is handled, obtained the check data of container to be checked;
Check data and the contrast of criterion of acceptability data are judged whether container vacuum to be checked is qualified;
Reject defective container.
9. vacuum fast non-destructive detection method according to claim 8 is characterized in that, described voice data is handled and comprised:
With the sound waveform datumization, remove useless noise data; When removing useless noise data, the highest part of the sound intensity of intercepting 400-3000Hz is removed and is lower than 80 decibels voice data, the time domain data after obtaining handling;
Convert time domain data to frequency domain data, and frequency domain data is analyzed, seek amplitude H1, the H2 of two the highest crests of amplitude and frequency range K1, the K2 of these two crests, H1, H2 and K1, K2 are check data.
10. any described vacuum fast non-destructive detection method is characterized in that according to Claim 8-9, and described method detects for the production of the container vacuum quick nondestructive on the line.
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| CN201310106023.6A CN103230880B (en) | 2013-03-28 | 2013-03-28 | Rapid nondestructive detection apparatus of vacuum degrees of containers, and detection method thereof |
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| CN201310106023.6A CN103230880B (en) | 2013-03-28 | 2013-03-28 | Rapid nondestructive detection apparatus of vacuum degrees of containers, and detection method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597124A (en) * | 2014-12-05 | 2015-05-06 | 广东省自动化研究所 | Metal canned product quality on-line detection method based on sound frequency-spectrum fitting |
| CN104792863A (en) * | 2015-02-01 | 2015-07-22 | 运城学院 | Porcelain vase damage automatic detection device |
| CN104949995A (en) * | 2015-07-02 | 2015-09-30 | 上海齐宏检测技术有限公司 | Online detection device and detection method thereof |
| CN106768610A (en) * | 2016-12-19 | 2017-05-31 | 广州市真量纯科技有限公司 | A kind of workpiece vacuum automatic testing method |
| CN108580328A (en) * | 2018-03-23 | 2018-09-28 | 芜湖捷欧汽车部件有限公司 | A kind of vacuum tank detection sorting unit |
| CN108772312A (en) * | 2018-04-18 | 2018-11-09 | 苏州阡晨金属包装设备有限公司 | A kind of detection device in pop can production process |
| CN109733691A (en) * | 2018-12-27 | 2019-05-10 | 广州市真量纯科技有限公司 | A kind of workpiece priming by vacuum control method based on abnormality detection |
| WO2020113575A1 (en) * | 2018-12-07 | 2020-06-11 | 广东省智能制造研究所 | Sound classification method, device and medium based on semi-nonnegative materix factorization with constraint |
| CN111289188A (en) * | 2018-12-10 | 2020-06-16 | 广州敏达包装设备有限公司 | Non-contact vacuum detection method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104597124A (en) * | 2014-12-05 | 2015-05-06 | 广东省自动化研究所 | Metal canned product quality on-line detection method based on sound frequency-spectrum fitting |
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| CN104792863A (en) * | 2015-02-01 | 2015-07-22 | 运城学院 | Porcelain vase damage automatic detection device |
| CN104949995A (en) * | 2015-07-02 | 2015-09-30 | 上海齐宏检测技术有限公司 | Online detection device and detection method thereof |
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| WO2020113575A1 (en) * | 2018-12-07 | 2020-06-11 | 广东省智能制造研究所 | Sound classification method, device and medium based on semi-nonnegative materix factorization with constraint |
| CN111289188A (en) * | 2018-12-10 | 2020-06-16 | 广州敏达包装设备有限公司 | Non-contact vacuum detection method |
| CN111289188B (en) * | 2018-12-10 | 2022-04-19 | 广州敏达包装设备有限公司 | Non-contact vacuum detection method |
| CN109733691A (en) * | 2018-12-27 | 2019-05-10 | 广州市真量纯科技有限公司 | A kind of workpiece priming by vacuum control method based on abnormality detection |
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