CN103196615B - Container pressure fast nondestructive test device and test method - Google Patents
Container pressure fast nondestructive test device and test method Download PDFInfo
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- CN103196615B CN103196615B CN201310106021.7A CN201310106021A CN103196615B CN 103196615 B CN103196615 B CN 103196615B CN 201310106021 A CN201310106021 A CN 201310106021A CN 103196615 B CN103196615 B CN 103196615B
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Abstract
The invention discloses a container pressure fast nondestructive test device and test method. The device comprises a conveying device, a test module, a control processing module and a removing device. The test module comprises an optoelectronic switch, an eddy current generator and an eddy current sensor. The control processing module comprises a current signal processing module, a digital signal processing module and a quality comparison module. The test method comprises the following steps: conveying containers to be tested to the test module; transmitting tested signals to the eddy current generator; driving the eddy current sensor and transmitting current values; converting current signals into digital signals, converting converted data into distance between test points on the containers to be tested and the sensor, and obtaining testing data of the containers to be tested according to moving of the conveying device and the value of the distance between test points on the containers to be tested and the sensor; and comparing the testing data and qualified normal data for judging whether pressure of the containers to be tested is qualified. According to the container pressure fast nondestructive test device and test method, the pressure of canned and bottled food and beverage containers can be tested accurately, quickly and nondestructively on a production line, and unqualified products can be removed.
Description
Technical field
The present invention relates to a kind of container pressure rapid non-destructive detecting device and detection method, particularly relate to the container pressure rapid non-destructive detecting device on the food and drink production line of pop can, vial, glass bottle packaging and detection method.
Background technology
Canned bottled (pop can, vial, vial) food and drink is one of food and drink can preserved for a long time in daily life, for guaranteeing its inner food, beverage never degenerates in longer-term storage process, and the vacuum tightness (malleation or negative pressure) in container used must reach certain numerical value.After exhaust, the container of good seal will keep certain vacuum tightness (container pressure), and its meaning is: 1. prevent the variable color of container thing, oxidation minimizing nutritive loss; 2. slow down container inner wall corrosion, avoid container deformation and vacation is fat listens; 3. the temperature that conforms and air pressure change; 4. the breeding of container aerobic microorganism is suppressed.Therefore, vacuum tightness is inspection instrument seal degree, ensures the important indicator of its quality.
The method that canned bottled food and drink container pressure used is measured has multiple, as manually beaten inspection method, cover distortion ocular estimate, vacuum meter detection method, sound frequency testing, optical method, electric vortex method, ultrasonic Detection Method, vacuum meter detection method and manually beating inspection method etc.
Manually beat inspection method: be a kind of manual method, the hand-held woodenware of tester beats container, judges whether certain container pressure according to sound, and manually beating inspection method is rely on the experience detecting work to operate, and not only efficiency is low but also reliability extreme difference.
Cover distortion ocular estimate: the method shortcoming is the same with artificial inspection method of beating is a kind of primitive method that this is eliminated.
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 is connected with vacuum meter, and observe needle deflection direction and the reading of table, it is qualified to judge whether.
Optical method (or claiming reflection method): parallel beam is projeced in container cover, the degree of deformation due to container cover is different and make the convergent point of the converging light of reflected light different, by the size of photocell detection photocurrent, and rejects inappropriate container; But material is uneven and measurand vibration all can bring measuring error.
Sound frequency testing: utilize mechanical force or electromagnetic force that cover is vibrated and send certain sound wave, then by pick-up unit, spectrum analysis is carried out to sound wave.Only be suitable for single container to detect, one group of container can not be completed and detect simultaneously, and detection speed is slow, be subject to the interference of workshop condition audio frequency, and affect by cap surface thing comparatively large, practical application is restricted.
Electric vortex method: utilize current vortex range measurement principle to measure container cover elastic deformation amount and converse vacuum tightness again, there is the factors such as measuring error correction and extraneous vibration affects precision.
In a word, the vacuum meter direct method of measurement, manually beat inspection method, cover is out of shape the low and reliability extreme difference of ocular estimate efficiency; Sound frequency testing, optical method use limited; Electric vortex method is measured automatically for the production of line, error is large.Said method cannot high speed detection of dynamic on travelling belt after the encapsulation of canned bottled food and drink factory or before dispatching from the factory.
Along with the raising of domestic level, consumer is to the pay attention to day by day of quality, widely using of automatic production line, the container pressure of canned bottled food and drink production industry is made to detect the significantly raising that can not meet throughput rate, what because of vacuum tightness, manufacturing enterprise often judged that distortion causes finished product unnecessary does over again, and economic loss is larger.
In sum, current shortage can be used for accurate, quick, harmless detection method and the equipment of canned bottled food beverage containers on production line.
Summary of the invention
For solving above-mentioned middle Problems existing and defect, the invention provides a kind of can on a production line accurately, fast, harmless container pressure checkout equipment and detection method.Described technical scheme is as follows:
A kind of container pressure rapid non-destructive detecting device, comprising:
Conveyer, detection module, control treatment module and device for eliminating; Described
Conveyer, for transporting container to be checked on a production line;
Pick-up unit, comprises optoelectronic switch, current vortex generator and current vortex sensor; Described optoelectronic switch, for detecting tank signal to be checked and signal being transported to current vortex generator; Described current vortex generator, according to the signal enabling current vortex sensor received and output current value; Described current vortex sensor, for transmitting the current value received;
Control treatment module, comprises current signal processing module, digital signal processing module and quality preservation module; Described current signal processing module, is converted to digital signal by the current signal that current vortex sensor transmits, and by digital data transmission to digital signal processing module; The data reduction of acquisition is the distance on container to be checked between check point and sensor by described digital signal processing module, and obtains the check data of container to be checked according to the distance value in the movement of conveyer and container to be checked between check point and sensor; Described quality preservation module, carries out contrast for check data that digital signal processing module is obtained and criterion of acceptability data and judges that whether container pressure to be checked is qualified;
Device for eliminating, according to the comparative result that quality preservation module draws, rejects defective container.
A kind of container pressure fast non-destructive detection method, comprising:
Transmit container to be checked to detection module;
The signal detected is sent to current vortex generator;
Drive current vortex sensor, and carry current value;
Convert current signal to digital signal, and be the distance on container to be checked between check point and sensor by the data reduction after changing, obtain the check data of container to be checked according to the distance value in the movement of conveyer and container to be checked between check point and sensor;
Check data and criterion of acceptability data are carried out contrast and judges that whether container pressure to be checked is qualified.
The beneficial effect of technical scheme provided by the invention is:
The canned bottled food beverage containers pressure of detection that can be accurate, quick, harmless on a production line, rejects unacceptable product.
Accompanying drawing explanation
Fig. 1 is container pressure rapid non-destructive detecting device structural drawing;
Fig. 2 is container pressure Fast nondestructive evaluation process structure diagram on a production line;
Fig. 3 is container pressure fast non-destructive detection method process flow diagram.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail:
See Fig. 1 and Fig. 2, be container pressure rapid non-destructive detecting device structure and this equipment container pressure Fast nondestructive evaluation process structure diagram on a production line, comprise: conveyer 1, detection module 3, control treatment module 4 and device for eliminating 5; Described
Conveyer, for transporting container 2 to be checked on a production line;
Pick-up unit, comprises optoelectronic switch, current vortex generator and current vortex sensor; Described optoelectronic switch, for detecting tank signal to be checked and signal being transported to current vortex generator; Described current vortex generator, according to the signal enabling current vortex sensor received and output current value; Described current vortex sensor, for transmitting the current value received;
Control treatment module, comprises current signal processing module, digital signal processing module and quality preservation module; Described current signal processing module, is converted to digital signal by the current signal that current vortex sensor transmits, and by digital data transmission to digital signal processing module; The data reduction of acquisition is the distance on container to be checked between check point and sensor by described digital signal processing module, and obtains the check data of container to be checked according to the distance value in the movement of conveyer and container to be checked between check point and sensor; Described quality preservation module, carries out contrast for check data that digital signal processing module is obtained and criterion of acceptability data and judges that whether container pressure to be checked is qualified;
Device for eliminating, according to the comparative result that quality preservation module draws, rejects defective container.
Above-mentioned current vortex generator is made up of chip control circuit and low-voltage circuit; Current vortex sensor is by the polyphenylene sulfide injection molded of different number of turn insulated magnetic coil and high-low temperature resistant, resistance to chemical attack; Current signal processing module is made up of low-voltage circuit and chip protection circuit; Digital signal processing module is made up of high-speed chip control circuit circuit board.
Chip control circuit in above-mentioned current vortex generator, sends instruction to low-voltage circuit according to required electro permanent magnetic intensity; Low-voltage circuit, for the instruction that receiving chip control circuit sends, exports the current value of 0-10A.
Above-mentioned current vortex sensor is for receiving the 0-10A current value of check point feedback on container to be checked.
Current vortex sensor current signal is processed into digital signal by above-mentioned current signal processing module, and delivers to digital signal processing module.
Current processing resume module data out to be transferred on container to be checked to check point to the distance of sensor by above-mentioned digital signal processing module, and in conjunction with the accurate movement of conveyer, draw the distance value that each inspection instrument end face is no less than at 50, then calculate be separated by 2 lines and horizontal slope, calculated the check data of container to be checked by described slope.
Above-mentioned quality preservation module to compare with criterion of acceptability data according to the check data of container to be checked and judges that whether container pressure to be checked is qualified, and namely check data does not exceed the bound of criterion of acceptability data, is certified products, otherwise is unacceptable product.
Above-mentioned device for eliminating 5 is made up of PLC and actuating unit, according to the result that quality preservation module draws, rejects defective container 6 by PLC and actuating unit.
The present embodiment additionally provides a kind of container pressure fast non-destructive detection method, and as shown in Figure 3, the method comprises:
Step 301 transmits container to be checked to detection module;
The signal detected is sent to current vortex generator by step 302;
Step 303 drives current vortex sensor, and carries current value;
Step 304 converts current signal to digital signal, and be the distance on container to be checked between check point and sensor by the data reduction after changing, the check data of container to be checked is obtained according to the distance value in the movement of conveyer and container to be checked between check point and sensor;
Check data and criterion of acceptability data are carried out contrast and are judged that whether container pressure to be checked is qualified by step 305.
Above-mentioned check data is also according to the movement of described conveyer, obtain the distance value between each container top surface at least 50 check points and sensor respectively, and calculate be separated by two check point lines and horizontal slope, the check data of container to be checked is obtained by all slopes.
Above-described embodiment is applicable to the vacuum degree of vessel Fast nondestructive evaluation on production line.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a container pressure rapid non-destructive detecting device, is characterized in that, described equipment comprises conveyer, detection module, control treatment module and device for eliminating; Described
Conveyer, for transporting container to be checked on a production line;
Detection module, comprises optoelectronic switch, current vortex generator and current vortex sensor; Described optoelectronic switch, for detecting tank signal to be checked and signal being transported to current vortex generator; Described current vortex generator, according to the signal enabling current vortex sensor received and output current value; Described current vortex sensor, for transmitting the current value received;
Control treatment module, comprises current signal processing module, digital signal processing module and quality preservation module; Described current signal processing module, is converted to digital signal by the current signal that current vortex sensor transmits, and by digital data transmission to digital signal processing module; The data reduction of acquisition is the distance on container to be checked between check point and sensor by described digital signal processing module, and obtains the check data of container to be checked according to the distance value in the movement of conveyer and container to be checked between check point and sensor; Described quality preservation module, carries out contrast for check data that digital signal processing module is obtained and criterion of acceptability data and judges that whether container pressure to be checked is qualified;
Device for eliminating, according to the comparative result that quality preservation module draws, rejects defective container;
According to the movement of described conveyer, obtain the distance value between each container top surface at least 50 check points and sensor respectively, and calculate be separated by two check point lines and horizontal slope, obtained the check data of container to be checked by all slopes;
Current vortex generator is made up of chip control circuit and low-voltage circuit;
Current vortex sensor is by the polyphenylene sulfide injection molded of different number of turn insulated magnetic coil and high-low temperature resistant, resistance to chemical attack;
Current signal processing module is made up of low-voltage circuit and chip protection circuit;
Digital signal processing module is made up of high-speed chip control circuit circuit board;
Chip control circuit in above-mentioned current vortex generator, sends instruction to low-voltage circuit according to required electro permanent magnetic intensity; Low-voltage circuit, for the instruction that receiving chip control circuit sends, exports the current value of 0-10A;
Above-mentioned current vortex sensor is for receiving the 0-10A current value of check point feedback on container to be checked.
2. container pressure rapid non-destructive detecting device according to claim 1, is characterized in that, described device for eliminating is made up of PLC and actuating unit.
3. the container pressure rapid non-destructive detecting device according to claim 1 or 2 any one, is characterized in that, described checkout equipment is for the production of the container pressure Fast nondestructive evaluation on line.
4. a container pressure fast non-destructive detection method, the method utilizes the container pressure rapid non-destructive detecting device described in described claim 1-3 any one, it is characterized in that, described method comprises:
Transmit container to be checked to detection module;
The signal detected is sent to current vortex generator;
Drive current vortex sensor, and carry current value;
Convert current signal to digital signal, and be the distance on container to be checked between check point and sensor by the data reduction after changing, obtain the check data of container to be checked according to the distance value in the movement of conveyer and container to be checked between check point and sensor;
Check data and criterion of acceptability data are carried out contrast and judges that whether container pressure to be checked is qualified;
According to the movement of described conveyer, obtain the distance value between each container top surface at least 50 check points and sensor respectively, and calculate be separated by two check point lines and horizontal slope, obtained the check data of container to be checked by all slopes.
5. container pressure fast non-destructive detection method according to claim 4, is characterized in that, described detection method is for the production of the container pressure Fast nondestructive evaluation on line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310106021.7A CN103196615B (en) | 2013-03-28 | 2013-03-28 | Container pressure fast nondestructive test device and test method |
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| CN201310106021.7A CN103196615B (en) | 2013-03-28 | 2013-03-28 | Container pressure fast nondestructive test device and test method |
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| CN103196615A CN103196615A (en) | 2013-07-10 |
| CN103196615B true CN103196615B (en) | 2015-03-18 |
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| CN201310106021.7A Active CN103196615B (en) | 2013-03-28 | 2013-03-28 | Container pressure fast nondestructive test device and test method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106123764B (en) * | 2016-09-09 | 2018-12-28 | 河北工业大学 | A kind of multifunctional examining examining system based on eddy current displacement sensor |
Citations (3)
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| US3700101A (en) * | 1971-05-18 | 1972-10-24 | Aluminum Co Of America | Container inspection apparatus |
| CN2094055U (en) * | 1991-03-09 | 1992-01-22 | 林立 | Vacuum in cans measuring and controlling apparatus |
| CN203132762U (en) * | 2013-03-28 | 2013-08-14 | 广州坚诺机械设备有限公司 | Container-pressure rapid nondestructive detecting device used on production line |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63302337A (en) * | 1987-06-03 | 1988-12-09 | Ueno Hiroshi | Internal pressure inspecting instrument for hermetically sealed container |
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2013
- 2013-03-28 CN CN201310106021.7A patent/CN103196615B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700101A (en) * | 1971-05-18 | 1972-10-24 | Aluminum Co Of America | Container inspection apparatus |
| CN2094055U (en) * | 1991-03-09 | 1992-01-22 | 林立 | Vacuum in cans measuring and controlling apparatus |
| CN203132762U (en) * | 2013-03-28 | 2013-08-14 | 广州坚诺机械设备有限公司 | Container-pressure rapid nondestructive detecting device used on production line |
Non-Patent Citations (4)
| Title |
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| 两探头电涡流法食品罐头真空度无损检测;李文英;《食品与发酵工业》;20000820(第4期);第29-32页 * |
| 双探头电涡流传感器真空度无损检测系统研究;李莉;《中国优秀硕士学位论文全文数据库 信息科技辑》;20090515(第5期);I140-109 * |
| 双控头电涡流法食品罐头真空度测量仪;刘南平等;《传感技术学报》;20050326(第1期);第129-131页 * |
| 食品罐头真空度无损检测仪的研制;刘南平等;《传感器技术》;20041220;第23卷(第12期);第40-42页 * |
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