CN202433143U - On-line vacuum degree detecting device for closed container - Google Patents
On-line vacuum degree detecting device for closed container Download PDFInfo
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- CN202433143U CN202433143U CN2011205173386U CN201120517338U CN202433143U CN 202433143 U CN202433143 U CN 202433143U CN 2011205173386 U CN2011205173386 U CN 2011205173386U CN 201120517338 U CN201120517338 U CN 201120517338U CN 202433143 U CN202433143 U CN 202433143U
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Abstract
The utility model discloses an on-line vacuum degree detecting device for a closed container. The on-line vacuum degree detecting device for the closed container comprises location trigger transducers, an encoder, a temperature transducer, an air pressure transducer, a micro-control unit and a rejection device. The location trigger transducers are arranged above a filling production line and along the positions of the middle and two sides of a container cover. By measuring the deflection of the container seal cover, non-stop on-line detection of the vacuum degree of the closed container is achieved, non-stop on-line rejection is achieved, the detection reliability is high, and the production efficiency is improved.
Description
Technical field
The utility model belongs to the test technique automatic field, especially relates to a kind of device of online detection closed container vacuum tightness.
Background technology
In recent years, along with living standards of the people improve and the constantly increase of going on a journey, travel, people's consumption idea constantly changes, and convenient, healthy with it, the easy characteristics that store of tinned food are firmly got liking of people.Because glass jar and metal can have better seal property, stronger resistance to pressure and higher recycling value, make it become the main container of vacuum-packed liquid food, beverage.The glass jar can body is cast by glass, and cover is processed for the tinplate punching press mostly, after product is accomplished can; Can often adopts vacuumizing method that container and content are placed sealed volume; With vacuum pump sealed volume is vacuumized, atmospheric density reduces in the volume, seals the back and obtains vacuum.Or the employing steam blow, the steam injection bottleneck with uniform temperature, certain pressure seals back steam condensation and forms certain vacuum.Glass bottle and jar is used the heating power degassing method always; Heating container and content reduce bottle interior atmospheric density before sealing, and seal while hot; Cooling back obtains vacuum, makes seal cavity that tank interior becomes a commercial sterilization with the quality that guarantees the tinned food beverage peculiar flavour when dispatching from the factory.Yet; Since the vacuum pump speed of exhaust descends, gas circuit is seriously leaked gas or pump-line filling, vacuum plant instrument malfunction, glass cap in damaged, the crimping of sealing rubber ring not exclusively or jar mouth is cracked etc. that situation causes product poorly sealed; Will make extraneous air get into tank body; The tank body bag that rises, product is rotten.In a single day defective product comes into the market, will the grievous injury consumer healthy, also can produce very big negative effect to manufacturing enterprise.Therefore, before the product export, need know the sealing of product through the vacuum tightness of testing product.
Before not having special inspecting equipment, whether manufacturer utilizes workman's eye-observation " fat tin ", and knocks through hand hammer and to listen the method for echo to judge whether product vacuum tightness reaches the requirement of certified products.Obvious this method randomness is more intense, and " fat tin " product can not got fat when just having dispatched from the factory, be after a while after product just can " fat tin ", the flase drop loss is all very high.Used the method for random sampling afterwards, and vacuum meter was inserted product internal measurement vacuum tightness portioned product is detected, but this method can be destroyed the sealing of product, can only be used for the sampling Detection of same batch products.Along with new technology, the Canning Technique of new method is constantly perfect, and line speed is more and more faster; Use classic method to detect; Not only detect q&r and have a greatly reduced quality, and the increase of recruitment cost also becomes the new burden of enterprise, reduced the competitiveness of product.Some can manufacturers are for guaranteeing product quality, from external introduction online detection instrument and device.For example the gas leak tester of U.S. taptone company production uses the high energy electromagnetic pulse to knock the cover or jar end, gathers echo and uses tailor-made algorithm to be judged by computing machine.But this method requires the can filling material not to be stained with to be bonded on the detection faces, and jar in a bottom clearance need guarantee within the specific limits could operate as normal, otherwise can't accurately detect.The general difference of the packed height that domestic canned pack is same batch is bigger, and production line vibration is more violent, especially when detecting the bigger product of viscosity such as mixed congee; Detection faces more or less can be stained with more sticking filling liquids; So be difficult to reach above detection requirement, it is bigger to add environmental impacts such as workshop temperature, noise, so; Detecting reliability is not high, can't promote the use of at home.
Summary of the invention
The purpose of the utility model is: avoid the problem of prior art existence, the device of the high online detection closed container vacuum tightness of a kind of detecting reliability is provided.
The technical scheme of the utility model is: comprise location triggered sensor, scrambler, temperature sensor, baroceptor, micro-control unit and flush trimmer; Location triggered sensor, temperature sensor, baroceptor, flush trimmer are arranged on the can production line; And be connected with micro-control unit; Above the can production line, position transducer is set along the centre and two side positions of container cover; Position transducer is connected with scrambler with micro-control unit, and micro-control unit carries out Calculation of Deflection.
The beneficial effect of the utility model is: the utility model can be applicable on the high-speed automated packing production equipment, through the deformation of measuring vessel capping amount of deflection, does not shut down the vacuum tightness of online detection vacuum-packed food beverage, and realizes not shutting down online rejecting.The utility model has improved production efficiency, has stopped because the situation of the omission false retrieval that factors such as artificial fatigue produce has alleviated laborer's working strength; Product quality is carried out Standardization Order, fundamentally improved the quality of product, can detect the not container of carbonated beverage, can or liquid food (comprising can, glass jar etc.) can vacuum tightness.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the functional block diagram of the utility model;
The sag curve synoptic diagram that Fig. 3 accomplishes for the utility model.
Embodiment
Can find out from structural representation of the utility model shown in Figure 1 and the functional structure schematic block diagram of Fig. 2; The utility model partly is made up of position transducer 2, location triggered sensor 1, scrambler 7, temperature sensor, baroceptor, rejecting sensor 5, flush trimmer 8, micro-control unit 6 etc.; Location triggered sensor 1, temperature sensor, baroceptor, rejecting sensor 5, flush trimmer 8 are arranged on the can production line 4, and are connected with micro-control unit 6 through circuit.The adjustable position transducer of height and position 2 is set above can production line 4, and position transducer 2 coverages are 5mm to the maximum, and precision is 8um; Response time is 1ms; Acquisition time is controlled in the 3ms, and subsidiary temperature sensor, links together with temperature sensor; Can achieve temperature compensation, the detection error control that will be brought by temperature variation is minimum.Position transducer 2 is arranged on the central area and the two ends of container cover; Gather the distance of to be detected each position of product and position transducer 2; But the height through the adjustment pick-up unit makes measuring-signal in our sensing range; Position transducer 2 is connected with scrambler 7 with micro-control unit 6, and micro-control unit 6 carries out Calculation of Deflection.
During detection, closed container to be measured 3 moves through conveying belt, accurately locatees successively through location triggered sensor 1, and through 7 pairs of containers 3 of scrambler.When sensor 2 belows, container cover front end in-position, begin matching coding device 7 and carry out continuously uninterrupted sampling, sampled value is for be relevant to the aanalogvoltage of capping distance through the generation ratio, till position transducer is passed through in the cover rear end.After gathering completion, temperature sensor measurement real-time working environment temperature is to reduce the influence of temperature to measurement result; The real-time atmospheric pressure value of baroceptor collection, with prevent undesired atmospheric pressure value to the generation of product pressure reduction than mistake.Micro-control unit 6 simulates the sag curve of container cover upper surface through the position transducer sampled value, and the real time temperature that obtains of comprehensively sampling and these two parameters of air pressure in real time, carries out the temperature and pressure compensation.Compensation finishes the back according to the predefined software program of system; According to the judgment rule that designs,, calculate the vacuum tightness of tested container to the product judgement of comparing; Confirm with this whether closing flaps is qualified, and sample waveform and judged result are sent to host computer show.Defective like fruit product, sensor 5 and flush trimmer 8 actions are rejected in 7 controls of matching coding device, reject defective container in specified location.
The sag curve synoptic diagram that Fig. 3 accomplishes for the utility model, the peak-peak of establishing the capping two ends that position transducer 2 collects is respectively a, b, the center section minimum value is c, then amount of deflection y is:
Know the product amount of deflection knowing the profile variation of product end cap through distance samples, and then know its sealing.Being the instance of vacuum container cover among the figure, is certified products, it is characterized by cover 9 integral body to the product inner recess, and its deflection value is for just on the occasion of, tank interior vacuum of space.
Claims (3)
1. the device of an online detection closed container vacuum tightness; Comprise location triggered sensor (1), scrambler (7), temperature sensor, baroceptor, micro-control unit (6) and flush trimmer (8); Location triggered sensor (1), temperature sensor, baroceptor, flush trimmer (8) are arranged on the can production line (4); And be connected with micro-control unit (6); It is characterized in that: in the top of can production line (4), along the centre and two side positions of container cover position transducer (2) is set, position transducer (2) is connected with scrambler (7) with micro-control unit (6), and micro-control unit (6) carries out Calculation of Deflection.
2. the device of online detection closed container vacuum tightness according to claim 1 is characterized in that: said position transducer (2) height and position scalable.
3. the device of online detection closed container vacuum tightness according to claim 1 is characterized in that: said position transducer (2) links together with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205173386U CN202433143U (en) | 2011-12-10 | 2011-12-10 | On-line vacuum degree detecting device for closed container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205173386U CN202433143U (en) | 2011-12-10 | 2011-12-10 | On-line vacuum degree detecting device for closed container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433143U true CN202433143U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205173386U Expired - Lifetime CN202433143U (en) | 2011-12-10 | 2011-12-10 | On-line vacuum degree detecting device for closed container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433143U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568343A (en) * | 2014-12-31 | 2015-04-29 | 广州市型腔模具制造有限公司 | Vacuum degree detection method for vacuum die-casting die |
| CN105372016A (en) * | 2015-11-17 | 2016-03-02 | 上海金啤包装检测科技有限公司 | Air leakage detection method, detection device and detection system |
| CN110792842A (en) * | 2019-10-21 | 2020-02-14 | 吴友宗 | Equipment for preventively maintaining regulating valve by utilizing echo characteristic |
-
2011
- 2011-12-10 CN CN2011205173386U patent/CN202433143U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568343A (en) * | 2014-12-31 | 2015-04-29 | 广州市型腔模具制造有限公司 | Vacuum degree detection method for vacuum die-casting die |
| CN104568343B (en) * | 2014-12-31 | 2018-03-09 | 广州市型腔模具制造有限公司 | A kind of vacuum die-casting mould vacuum detecting method |
| CN105372016A (en) * | 2015-11-17 | 2016-03-02 | 上海金啤包装检测科技有限公司 | Air leakage detection method, detection device and detection system |
| CN110792842A (en) * | 2019-10-21 | 2020-02-14 | 吴友宗 | Equipment for preventively maintaining regulating valve by utilizing echo characteristic |
| CN110792842B (en) * | 2019-10-21 | 2021-07-30 | 南京溧水高新产业股权投资有限公司 | Equipment for preventively maintaining regulating valve by utilizing echo characteristic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |