CN107899967A - A kind of product encapsulation leakage detection method and its device - Google Patents
A kind of product encapsulation leakage detection method and its device Download PDFInfo
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- CN107899967A CN107899967A CN201711473647.6A CN201711473647A CN107899967A CN 107899967 A CN107899967 A CN 107899967A CN 201711473647 A CN201711473647 A CN 201711473647A CN 107899967 A CN107899967 A CN 107899967A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3404—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of product encapsulation leakage detection method and device.This method comprises the following steps：Pre-set and the relevant every ultrasonic parameters of product to be measured；The position fine positioning to product to be measured is completed, and is sequentially completed the scanning that position is encapsulated to each product to be measured with the ultrasonic wave that product material to be measured matches using the velocity of sound, the ultrasonic signal that each product encapsulation position to be measured of collection reflects；According to pre-set every ultrasonic parameters, definite and each corresponding ultrasonic signal of product sealing surface to be measured, judges whether the encapsulation of each product to be measured is qualified according to default decision condition.Encapsulation position of the present invention without contact product and product, avoid damage to product, product packaging and product encapsulation position, and without equidistantly being handled product again so that product encapsulation leak detection is simpler, efficient, and adapts to the leak detection requirement of product high-speed production lines.
Description
Technical field
The present invention relates to a kind of product to encapsulate leakage detection method, also relates to corresponding product encapsulation leak detection dress
Put, belong to product packaging technical field.
Background technology
At present, many products on the market are all sold after packaging.Wherein, the method for packing of product includes straight
Connect and sealed product sealing part, or use and be packaged product using aluminium film, such as common bottled medicine or drink
Product and packed food etc..These products are required for carrying out leak detection after packaging, in order to the storage of product.
A kind of side of aluminium film encapsulation leak detection is disclosed in the Chinese patent application of Application No. 201410764695.0
Method.This method comprises the following steps：A. one screw bottle separating device is installed in the side of product conveyor first, in conveyer belt one end
The synchronous pressurizing unit of both sides installation, a measuring device is installed above synchronous pressurizing unit；B. product is transmitted through conveyer belt
To screw bottle separating device, screw bottle separating device equidistantly separates product；C. product enters in synchronous pressurizing unit, when product reaches
During to precalculated position, measuring device drops quickly to designated position, the aluminium film of measuring device bottom squeeze product；D. measuring device
Follow synchronous pressurizing unit synchronizing moving, and the pressure value of measuring device dynamic measurement product top aluminium film；E. measuring device is moved
Move to precalculated position, dynamic measurement terminates.
But above-mentioned detection method is easily destroyed product or aluminium film, and also easily product encapsulation situation is judged by accident.
Meanwhile in order to ensure to complete the leak detection process of each product, it is necessary to equidistantly handle product, therefore, it is impossible to realize
The leak detection of product high-speed production lines and even dress product (such as multiple cup drinks, which connect together, to be sold) detection, it is also difficult to
Ensure the homogeneity and stability of product leakage testing result.
The content of the invention
Primary technical problem to be solved by this invention is to provide a kind of product encapsulation leakage detection method.
Another technical problem to be solved by this invention is to provide a kind of product encapsulation leak detecting device.
To achieve these goals, the present invention uses following technical proposals：
First aspect according to embodiments of the present invention, there is provided a kind of product encapsulates leakage detection method, includes the following steps：
Pre-set and the relevant every ultrasonic parameters of product to be measured；
The position fine positioning to product to be measured is completed, and the ultrasonic wave that the use velocity of sound matches with product material to be measured is successively
Complete the scanning to each product encapsulation position to be measured, the ultrasonic wave letter that each product encapsulation position to be measured of collection reflects
Number；
According to pre-set every ultrasonic parameters, the corresponding ultrasonic wave letter of each product sealing surface to be measured is determined
Number, judge whether the encapsulation of each product to be measured is qualified according to default decision condition.
Wherein more preferably, pre-set includes following sub-step with the relevant every ultrasonic parameters of product to be measured：
According to the material character of the product to be measured, after the velocity of sound that the ultrasonic wave is set, zero setting is selected to enter calibration shape
State；
Couplant is applied in random test block, ultrasonic probe is coupled with random test block, it is complete when reaching preset value
Into calibration；
After the calibration for completing the ultrasonic probe, the ultrasonic probe is entered measuring state, measure random test block,
If the error of indication, which exceeds default measurement error, also to be needed to be calibrated again, untill the error of indication is in the range of measurement error.
Wherein more preferably, the ultrasonic probe transmitting ultrasonic wave, the ultrasonic wave is with each product to be measured
Continuous irradiation is moved to the product encapsulation position to be measured, while receives and is reflected back by each product encapsulation position to be measured
The ultrasonic signal come.
Wherein more preferably, each product to be measured gathered is encapsulated into the corresponding ultrasonic signal in position and generates image
Or curve, judge whether the encapsulation of each product to be measured is qualified；
Alternatively, each product to be measured gathered is encapsulated into the threshold value of the corresponding ultrasonic signal in position and default threshold
Value is compared, and judges whether the encapsulation of each product to be measured is qualified.
Second aspect according to embodiments of the present invention, there is provided a kind of product encapsulation leak detecting device, including transport module,
Detection module, signal acquisition module, reject module and computing module, the detection module, the signal acquisition module and described
Module is rejected to be connected with the computing module respectively；
The transport module is used to each product to be measured being transported to the detection module；
The detection module is used to be sequentially completed using ultrasonic wave encapsulates the scanning at position to each product to be measured, and obtains
The ultrasonic signal that each product encapsulation position to be measured reflects；
The signal acquisition module is used to gathering the ultrasonic signal that the detection module is sent, and by the ultrasound
Ripple signal is exported in digital form；
The computing module is used to receive the ultrasonic signal that the signal acquisition module is sent, according to production to be measured
The relevant every ultrasonic parameters of product, definite and each corresponding ultrasonic signal of product sealing surface to be measured, and according to default
Decision condition judge whether the encapsulation of each product to be measured qualified；
Wherein more preferably, the transport module is respectively arranged with the first positioning unit and the second positioning unit；Described first
Positioning unit, which is used for realization, is accurately positioned each product to be measured；Second positioning unit is used to orient encapsulation not in real time
The position of qualified product to be measured.
Wherein more preferably, the detection module is provided with ultrasonic probe, and the ultrasonic probe is collection transmitting and receives
Function is made of in the ultrasonic wave linear array probe of one, or the ultrasonic probe transmitting probe and receiving transducer.
Product encapsulation leakage detection method and device provided by the present invention encapsulate product position (sealing by ultrasonic wave
Position) scanned comprehensively, and the ultrasonic signal reflected according to each product of collection encapsulation position, analysis judge production
Whether product encapsulation is qualified.This product encapsulates encapsulation position of the leakage detection method without contact product and product, avoids damage to produce
Product, product packaging and product encapsulation position, and without equidistantly being handled product again so that product encapsulation leak detection is more
Add leak detection requirement that is simple, efficient, and adapting to product high-speed production lines.
Brief description of the drawings
Fig. 1 is the flow chart that product provided by the present invention encapsulates leakage detection method；
Fig. 2 is the structure diagram that product provided by the present invention encapsulates leak detecting device；
Fig. 3 is encapsulated in leakage detection method for product provided by the present invention, a kind of structure diagram of ultrasonic probe；
Fig. 4 is encapsulated in leakage detection method for product provided by the present invention, another structural representation of ultrasonic probe
Figure；
Fig. 5 is encapsulated in leakage detection method for product provided by the present invention, corresponding when the encapsulation of product is unqualified to be somebody's turn to do
The curve synoptic diagram that whole ultrasonic signals of the whole aluminium foil surface of product are generated；
Fig. 6 is encapsulated in leakage detection method for product provided by the present invention, corresponding production when the encapsulation of product is qualified
The curve synoptic diagram that whole ultrasonic signals of the whole aluminium foil surface of product are generated.
Embodiment
The technology contents of the present invention are described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, product encapsulation leakage detection method provided by the present invention mainly includes the following steps：Pre-set
With the relevant every ultrasonic parameters of product to be measured；The position fine positioning to product to be measured is completed, and using the velocity of sound and production to be measured
The ultrasonic wave that product material matches is sequentially completed the scanning to each product encapsulation position to be measured, each product encapsulation to be measured of collection
The ultrasonic signal that position reflects；According to pre-set every ultrasonic parameters, determine to seal with each product to be measured
The corresponding ultrasonic signal in face, judges whether the encapsulation of each product to be measured is qualified according in advance according to default decision condition
Set with the relevant every ultrasonic parameters of product to be measured；Underproof product will be encapsulated it is transported to predeterminated position and is picked
Remove.
The present invention also provides a kind of product to encapsulate leak detecting device.As shown in Fig. 2, the device includes transport module 1, inspection
Survey module 3, signal acquisition module 5, reject module (not shown) and computing module 6, detection module 3, signal acquisition module 5
And reject module and be connected respectively with computing module 6.
Wherein, transport module 1 is used to each product to be measured being transported to detection module 3.Specifically, will each production to be measured
Product 2 are placed on transport module 1, and the aluminium foil that each product 2 to be measured encapsulates position is face-up.In order to ensure each production to be measured
Product can accurately be transported to detection module 3, and the first positioning unit (not shown) can be set on transport module 1, lead to
Cross the first positioning unit and realize being accurately positioned to each product 2 to be measured.First positioning unit can be arranged on transport module 1
Entry position, when each product to be measured enters transport module 1, is accurately positioned each product 2 to be measured.
Detection module 3 is used to be sequentially completed the scanning for encapsulating each product to be measured at position using default ultrasonic wave, and
Obtain the ultrasonic signal that each product encapsulation position to be measured reflects.As shown in Fig. 2, detection module 3 is provided with ultrasonic wave
Probe 4.Bar shaped ultrasonic wave is launched by the ultrasonic probe 4, as the movement Continuous irradiation of product to be measured is to product encapsulation part
On the aluminium foil surface of position, while receive the whole ultrasonic signals reflected by each whole aluminium foil surface of product to be measured.
Signal acquisition module 5 is used for the ultrasonic signal that acquisition testing module 3 is sent, and by the ultrasonic signal with numeral
Form is exported.Specifically, the ultrasonic wave linear array probe 2 of detection module 3 is connected with signal acquisition module 5, passes through letter
Number acquisition module 5 gathers the ultrasonic wave reflected by each whole aluminium foil surface of product to be measured that ultrasonic wave linear array probe 2 receives
Signal.Wherein, signal acquisition module 5 can use data acquisition card, the data acquisition card include acquisition module, processing module and
Analog-to-digital conversion module, acquisition module are connected with processing module, and processing module is connected with analog-to-digital conversion module.Data acquisition card will be adopted
The ultrasonic signal of each whole aluminium foil surface of product to be measured of collection carries out Denoising disposal, and by whole ultrasonic waves after processing
The ultrasonic signal that signal is converted into digital form is exported.
Computing module 6 is used for the ultrasonic signal for receiving the transmission of signal acquisition module 5, according to relevant each with product to be measured
Item ultrasonic parameters, determine and each corresponding ultrasonic signal of product sealing surface to be measured, and according to default decision condition
Judge whether the encapsulation of each product to be measured is qualified.
Module is rejected to be used to encapsulate underproof product and be transported to predeterminated position to be rejected.When computing module 6 judges
When having the underproof product of encapsulation in product to be measured, the rejecting module positioned at 3 side of detection module can be controlled to be rejected.For
Underproof product will be encapsulated accurately it is transported to and reject module and rejected, can sets second to position on transport module 1
Unit, second positioning unit can use encoder.Encoder is connected with computing module 6, can be counted in real time by encoder
Calculate the position for encapsulating underproof product, consequently facilitating computing module 6 be precisely controlled reject module will encapsulate it is unqualified
Product rejected.
In the present invention, aluminium film refers to the film of single aluminum foil material composition, or the multiple material such as aluminium foil, plastics is compound
The composite membrane formed.Below exemplified by product to be packaged using aluminium film, leakage inspection is encapsulated to product provided by the present invention
Method and device is surveyed to be described in detail.
Step S1：Pre-set and the relevant every ultrasonic parameters of product to be measured；
Since this product encapsulation leakage detection method mainly utilizes ultrasonic wave to complete the test process to each product to be measured,
And ultrasonic wave is generated and transmitted by by ultrasonic probe 4 (as shown in Figure 2), therefore, it is necessary to ensure the super of ultrasonic probe transmitting
Sound wave matches with product to be measured, can just make the ultrasonic signal corresponding with product to be measured of subsequent acquisition more accurate.Specifically
Say, as shown in Fig. 2, can be connected ultrasonic probe 4 with computing module 6, be previously-completed by computing module 6 and ultrasonic wave is visited
First 4 parameters configuration, which can be the parameters (material, shape and dimensional parameters) and ultrasound of product to be detected
The parameters (control sequential parameter, launch angle parameter and receives frequency parameter etc.) of ripple.
In order to further ensure subsequent acquisition ultrasonic signal corresponding with product to be measured is more accurate, it is necessary to using calculating
Module 6 is modified the nonlinearity erron of ultrasonic probe 4.Specifically, according to the material of product to be measured, ultrasonic wave is set
The velocity of sound after, select zero setting enter align mode；Couplant is applied in random test block, by ultrasonic probe and random test block coupling
Close, calibration is completed when reaching preset value；After the calibration for completing ultrasonic probe, measuring state is made it into, measurement is random
Test block, if the error of indication exceeds default measurement error and also needs to be calibrated again, until the error of indication is in the range of measurement error
Untill.By above-mentioned steps, the error correction to ultrasonic probe is completed, to ensure the ultrasonic signal of subsequent acquisition more
Accurately.
Step S2：The position fine positioning to product to be measured is completed, and is matched using the velocity of sound with product material property to be measured
Ultrasonic wave be sequentially completed scanning to each product to be measured encapsulation position, each product encapsulation position to be measured of collection reflects
Ultrasonic signal；
Each product 2 to be measured can be transported to detection module by transport module, complete to treat to each by detection module
Survey the scanning process of product 2.Also, equidistant processing need not be done between each product 2 to be measured, as long as will not be produced between product
Lap.Specifically, as shown in Fig. 2, each product to be measured is placed on transport module 1, and it is each to be measured
The aluminium foil at product encapsulation position is face-up., can be with order to ensure that each product to be measured 2 can accurately be transported to detection module 3
First positioning unit (not shown) is set on transport module, is realized by the first positioning unit to each product to be measured
It is accurately positioned.First positioning unit can be arranged on the entry position of transport module 1, when each product 2 to be measured enters transmission
During module 1, each product 2 to be measured is accurately positioned.Wherein, transport module 1 can use conveyer belt.
As shown in Fig. 2, product is transmitted to detection module 3 by transport module 1, detection module 3 is provided with ultrasonic wave spy
First 4, the scanning to each product to be measured is completed by ultrasonic probe 4.As shown in figure 4, ultrasonic probe 4 is preferably to collect transmitting
With receive capabilities in the ultrasonic probe of one, more preferably ultrasonic wave linear array probe.Launched by the ultrasonic probe 4
Bar shaped ultrasonic wave, Continuous irradiation to product are encapsulated on the aluminium foil surface at position, while are received by each whole aluminium foil surface of product to be measured
The ultrasonic signal reflected.
As shown in figure 3, ultrasonic probe 4 can also be made of transmitting probe 401 and receiving transducer 402.Wherein, transmitting is visited
First 401 are arranged on detection module 3, and receiving transducer 402 is arranged on the lower section of transport module 1, and the position of receiving transducer 402 is just
To transmitting probe 401, bar shaped ultrasonic wave is launched by transmitting probe 401.Equally, transmitting probe 401 launch ultrasonic wave with
On the movement Continuous irradiation of product to be measured to the aluminium foil surface for encapsulating position, while receiving transducer 402 is received by each product to be measured
The ultrasonic signal that whole aluminium foil surface reflects.
In order to ensure that ultrasonic probe 4 can complete the continuous scanning to the whole aluminium foil surface of each product, ultrasonic wave is visited
The length of the bar shaped ultrasonic wave of first 4 transmitting should be not less than the longitudinal length of the whole aluminium foil surface of each product, that is, ensure ultrasonic wave
The position that the bar shaped ultrasonic wave covering of the transmitting of probe 4 is in contact with aluminium foil surface.
It should be noted that when using the ultra-thin materials of ultrasonic measurement aluminium film etc, it some times happens that one kind is known as
The error result of " double refraction ", its result are to show that reading is two times of actual (real) thickness.Another error result is referred to as
" pulse envelope, circulation jump ", it the result is that measured value is more than actual (real) thickness.To prevent this kind of error, this product encapsulation is let out
Measurement verification be repeated several times when implementing for leak detection method.Resolutely to be abandoned for the higher measurement result of dispersion, must
Will when replace measurement position and remeasured.
As shown in Fig. 2, the ultrasonic wave acquired in the whole aluminium foil surface of each product to be measured is gathered by signal acquisition module 5
Signal.Specifically, the ultrasonic probe 4 of detection module 3 is connected with signal acquisition module 5, is adopted by signal acquisition module 5
Collect the ultrasonic signal reflected by the whole aluminium foil surface of each product to be measured that ultrasonic probe 4 receives.Wherein, signal is adopted
Collection module 5 can use data acquisition card.The data acquisition card includes acquisition module, processing module and analog-to-digital conversion module, adopts
Collection module is connected with processing module, and processing module is connected with analog-to-digital conversion module.Data acquisition card is by each production to be measured of collection
The ultrasonic signal of the whole aluminium foil surface of product carries out Denoising disposal, and the ultrasonic signal after processing is converted into digital shape
The ultrasonic signal of formula is exported.
Step S3：According to pre-set every ultrasonic parameters, determine that each product sealing surface to be measured is corresponding super
Acoustic signals, judge whether the encapsulation of each product to be measured is qualified according to default decision condition.
In one embodiment of the invention, signal acquisition module 5 is connected with computing module 6, and each product to be measured is whole
The ultrasonic signal of a aluminium foil surface is transferred in computing module 6 in digital form.Computing module 6 is sentenced according to default decision condition
Whether the encapsulation of disconnected each product to be measured is qualified.
Below by different embodiments, how computing module 6 is analyzed and judges whether the encapsulation of each product to be measured closes
The process of lattice is described in detail.
In the first embodiment of detection method of the present invention, computing module 6 is according to pre-set and product to be measured
Relevant items ultrasonic parameters, determine the corresponding multiple ultrasonic signals of sealing surface of each product to be measured；According to default
Decision condition, judge whether the encapsulation of each product to be measured qualified.
Since the aluminium foil surface at the encapsulation position of each product includes sealing face and sealing surface.Wherein, sealing face refer to must be with
The corresponding face of product opening；Sealing surface refers to the face being in contact with product to be measured, i.e., will by sealing surface aluminium foil surface
The opening sealing of product.The ultrasonic signal for each whole aluminium foil surface of product to be measured that computing module 6 receives is included with sealing face
Corresponding multiple ultrasonic signals and with the corresponding multiple ultrasonic signals of sealing surface.Using with sealing face it is corresponding more
A ultrasonic signal each other should be identical, and with corresponding multiple ultrasonic signals in sealing face and corresponding more with sealing surface
A ultrasonic signal each other should be different technical characterstic, joined according to the every of pre-set product to be measured on computing module 6
Number, can be easily determined the corresponding ultrasonic signal of sealing surface of each product to be measured.
Specifically, according to the parameters of pre-set product to be measured on computing module 6, it may be determined that product to be measured
The corresponding multiple ultrasonic signals in sealing face and the corresponding multiple ultrasonic signals of sealing surface.When computing module 6 receives
During the ultrasonic signal of the whole aluminium foil surface of the product consistent with set product parameters to be measured, this can be filtered out quickly and treated
Survey the corresponding multiple ultrasonic signals of sealing surface of product.
If contain mutation in the corresponding multiple ultrasonic signals of sealing surface of each product to be measured screened
During ultrasonic signal (inconsistent with the corresponding multiple ultrasonic signals of sealing surface of normal each product), it may be determined that should
The sealing surface of product to be measured, which has, not to be sealed a little, that is, judges that the encapsulation of the product to be measured is unqualified.Therefore, it is pre- on computing module 6
If decision condition can be, in the corresponding multiple ultrasonic signals of sealing surface of each product to be measured, if containing ultrasound
When the threshold value of ripple signal exceedes predetermined threshold value, ultrasonic signal of the ultrasonic signal for mutation is judged.It is for example, it is assumed that normal
The threshold value of the corresponding each ultrasonic signal of sealing surface of each product to be measured is 1, then, in the sealing of each product to be measured
In the corresponding multiple ultrasonic signals in face, if having the threshold value of ultrasonic signal more than 1, judge the ultrasonic signal for mutation
Ultrasonic signal, so as to judge that the encapsulation of the product to be measured is unqualified.
In the second embodiment of detection method of the present invention, computing module 6 is according to pre-set and product to be measured
Relevant items ultrasonic parameters, by whole ultrasonic signal generation figures of each whole aluminium foil surface of product to be measured gathered
Picture；According to the corresponding image of whole ultrasonic signals with each whole aluminium foil surface of product to be measured generated, judge each
Whether the encapsulation of product to be measured is qualified.
The ultrasonic signal for each whole aluminium foil surface of product to be measured that computing module 6 receives includes corresponding with sealing face
Multiple ultrasonic signals and with the corresponding multiple ultrasonic signals of sealing surface.Due to sealing the corresponding multiple ultrasonic waves in face
Signal each other should be identical, and with the corresponding multiple ultrasonic signals in sealing face and with the corresponding multiple ultrasonic waves of sealing surface
Signal each other should be different.Therefore, according to the relevant every ultrasonic parameters of pre-set and product to be measured, computing module is worked as
6 when receiving the ultrasonic signal of the whole aluminium foil surface of the to be measured product consistent with set product parameters to be measured, using figure
As generation software, the ultrasonic signal of the whole aluminium foil surface of each product received can be generated image.
It is real for product with the corresponding image of ultrasonic signal of each whole aluminium foil surface of product to be measured by being generated
Object image, determines whether the sealing surface of the product has not sealing by observing and a little judges whether the encapsulation of the product is qualified.
In the 3rd embodiment of detection method of the present invention, computing module 6 is according to pre-set and product to be measured
Relevant items ultrasonic parameters, by the ultrasonic signal formation curve figure of each whole aluminium foil surface of product to be measured gathered；
According to the corresponding curve map of ultrasonic signal with each whole aluminium foil surface of product to be measured generated, each production to be measured is judged
Whether the encapsulation of product is qualified.
The ultrasonic signal for each whole aluminium foil surface of product to be measured that computing module 6 receives includes corresponding with sealing face
Multiple ultrasonic signals and with the corresponding multiple ultrasonic signals of sealing surface.Therefore, according to pre-set and product to be measured
Relevant items ultrasonic parameters, when computing module 6 receives the whole of the product consistent with set product parameters to be measured
, can be by the ultrasonic signal formation curve of each whole aluminium foil surface of product to be measured received during the ultrasonic signal of aluminium foil surface
Figure, as shown in Figure 5 and Figure 6 as.
As shown in figure 5, in the ultrasonic signal of the whole aluminium foil surface reflection of each product, the threshold of ultrasonic signal is had
It is worth the ultrasonic signal apparently higher than other ultrasonic signal threshold values, therefore can be determined that ultrasound of the ultrasonic signal for mutation
Ripple signal, so as to judge that the encapsulation of the product to be measured is unqualified.As shown in fig. 6, in the super of the whole aluminium foil surface reflection of each product
In acoustic signals, the threshold value of each ultrasonic signal is identical, so as to judge that the encapsulation of the product to be measured is qualified.
Step S4：Underproof product will be encapsulated it is transported to predeterminated position and is rejected.
When computing module 6, which judges to have in product to be measured, encapsulates underproof product, can control by detection module
The rejecting module of side is rejected.In order to accurately control will encapsulate underproof product be transported to reject module rejected, can
To set the second positioning unit on transport module, which can use encoder.Encoder and computing module 6
Connection, can calculate the position for encapsulating underproof product in real time by encoder, consequently facilitating computing module 6 is accurate
Control rejecting module will encapsulate underproof product and be rejected.
Product encapsulation leakage detection method and device provided by the present invention to product by encapsulating position (seal location)
Scanned comprehensively, and the ultrasonic signal reflected according to each product of collection encapsulation position, analysis judge that product seals
Whether dress is qualified.This product encapsulates encapsulation position of the leakage detection method without contact product and product, avoids damage to product, production
Product are packed and product encapsulation position, and without equidistantly being handled product again so that product encapsulation leak detection is simpler
It is single, efficient, and adapt to the leak detection requirement of product high-speed production lines.
Leakage detection method is encapsulated to product provided by the present invention above and device is described in detail.To ability
For the those skilled in the art in domain, any obviously change to what it was done on the premise of without departing substantially from true spirit
It is dynamic, it will all belong to the protection domain of patent right of the present invention.
Claims (8)
1. a kind of product encapsulates leakage detection method, it is characterised in that includes the following steps：
Pre-set and the relevant every ultrasonic parameters of product to be measured；
The position fine positioning to product to be measured is completed, and the ultrasonic wave to be matched using the velocity of sound with product material to be measured is sequentially completed
Scanning to each product encapsulation position to be measured, the ultrasonic signal that each product encapsulation position to be measured of collection reflects；
According to pre-set every ultrasonic parameters, each corresponding ultrasonic signal of product sealing surface to be measured, root are determined
Judge whether the encapsulation of each product to be measured is qualified according to default decision condition.
2. product encapsulation leakage detection method as claimed in claim 1, it is characterised in that pre-set related to product to be measured
Every ultrasonic parameters include following sub-step：
According to the material character of the product to be measured, after the velocity of sound that the ultrasonic wave is set, zero setting is selected to enter align mode；
Couplant is applied in random test block, ultrasonic probe is coupled with random test block, school is completed when reaching preset value
It is accurate；
After the calibration for completing the ultrasonic probe, the ultrasonic probe is entered measuring state, measure random test block, if showing
Value error, which exceeds default measurement error, also to be needed to be calibrated again, untill the error of indication is in the range of measurement error.
3. product as claimed in claim 2 encapsulates leakage detection method, it is characterised in that：
The ultrasonic probe launches ultrasonic wave, and the ultrasonic wave is as the movement Continuous irradiation of each product to be measured is to institute
State on product encapsulation position to be measured, while receive the ultrasonic signal reflected by each product encapsulation position to be measured.
4. product as claimed in claim 1 encapsulates leakage detection method, it is characterised in that：
The each product to be measured gathered is encapsulated into the corresponding ultrasonic signal generation image in position or curve, is judged each
Whether the encapsulation of product to be measured is qualified.
5. product as claimed in claim 1 encapsulates leakage detection method, it is characterised in that：
The threshold value that each product to be measured gathered is encapsulated to the corresponding ultrasonic signal in position is compared with predetermined threshold value
Compared with whether the encapsulation of each product to be measured of judgement is qualified.
6. a kind of product encapsulates leak detecting device, it is characterised in that including transport module, detection module, signal acquisition module,
Reject module and computing module, the detection module, the signal acquisition module and the rejecting module respectively with the calculating
Module connects；
The transport module is used to each product to be measured being transported to the detection module；
The detection module is used to be sequentially completed the scanning for encapsulating each product to be measured at position using ultrasonic wave, and obtains each
The ultrasonic signal that product encapsulation position to be measured reflects；The signal acquisition module is used to gather the detection module transmission
The ultrasonic signal, and the ultrasonic signal is exported in digital form；
The computing module is used to receive the ultrasonic signal that the signal acquisition module is sent, according to product phase to be measured
Every ultrasonic parameters of pass, determine and each corresponding ultrasonic signal of product sealing surface to be measured, and being sentenced according to default
Fixed condition judges whether the encapsulation of each product to be measured is qualified.
7. product as claimed in claim 6 encapsulates leak detecting device, it is characterised in that：
The transport module is respectively arranged with the first positioning unit and the second positioning unit；First positioning unit is used for realization
Each product to be measured is accurately positioned；Second positioning unit is used to orient the underproof product to be measured of encapsulation in real time
Position.
8. product as claimed in claim 6 encapsulates leak detecting device, it is characterised in that：
The detection module is provided with ultrasonic probe, and the ultrasonic probe is the ultrasound for integrating transmitting and receive capabilities
Ripple linear array probe, or the ultrasonic probe are made of transmitting probe and receiving transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711473647.6A CN107899967A (en) | 2017-12-29 | 2017-12-29 | A kind of product encapsulation leakage detection method and its device |
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| CN201711473647.6A CN107899967A (en) | 2017-12-29 | 2017-12-29 | A kind of product encapsulation leakage detection method and its device |
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| CN107899967A true CN107899967A (en) | 2018-04-13 |
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| CN201711473647.6A Pending CN107899967A (en) | 2017-12-29 | 2017-12-29 | A kind of product encapsulation leakage detection method and its device |
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| CN109733688A (en) * | 2019-01-10 | 2019-05-10 | 青海盐湖工业股份有限公司 | It is a kind of to encapsulate the method and system that packaging bag is compiled in modeling using ultrasonic welding machine |
| CN110053312A (en) * | 2019-03-19 | 2019-07-26 | 瑞弘精密工业股份有限公司 | The sealing detection device of packaging bag |
| CN113252255A (en) * | 2021-07-01 | 2021-08-13 | 北京力耘柯创医学研究院 | Special detecting system for soft bottle |
| CN113390958A (en) * | 2021-07-29 | 2021-09-14 | 北京中关村水木医疗科技有限公司 | Method and device for packaging medical test sample |
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