CN105829882B - The check device and inspection method of sealed package product - Google Patents
The check device and inspection method of sealed package product Download PDFInfo
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- CN105829882B CN105829882B CN201480054552.9A CN201480054552A CN105829882B CN 105829882 B CN105829882 B CN 105829882B CN 201480054552 A CN201480054552 A CN 201480054552A CN 105829882 B CN105829882 B CN 105829882B
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- sealed package
- package product
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- gas
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/032—Analysing fluids by measuring attenuation of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/27—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the material relative to a stationary sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/048—Transmission, i.e. analysed material between transmitter and receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/102—Number of transducers one emitter, one receiver
Abstract
Whether there is or not ultrasonic sensor (11) and main control unit (18a) are equipped in the check device (10) of gas or foreign matter for the inside of inspection vacuum packaging product (20).There is ultrasonic sensor (11) signal to send probe (11a) and probe receiver (11b), vacuum packaging product (20) is located at signal and sends between probe (11a) and probe receiver (11b), receives the ultrasonic wave that signal transmission probe (11a) issues by probe receiver (11b) to detect vacuum packaging product (20).Main control unit (18a) detects the penetrance of ultrasonic wave when product (20) are vacuum-packed according to ultrasonic sensor (11) to determine to be vacuum-packed gas or foreign matter for whether having setting value or more in product (20).In addition, being provided with the mobile device (12) for keeping ultrasonic sensor (11) mobile relative to vacuum packaging product (20).
Description
Technical field
The present invention relates to the check devices and inspection method of a kind of sealed package product, check vacuum packaging product and liquid
The inside of the sealed packages product such as body packing articles whether entrained gas or foreign matter.
Background technique
Sealed package product used in previous, by being accommodated in battery or medical supplies etc. in container with vacuum state
Product is vacuum-packed in battery packages or medical package etc., or food is accommodated in container with the state for impregnating in a liquid
Flexible package punch product etc. is constituted.Such sealed package product, leaks in container, when inside enters the gases such as air, meeting
Lead to situations such as quality of storage item reduces, product itself is damaged, so to check being mixed into whether there is or not gas before listing
(for example, referring to patent document 1).
This inspection is carried out using the vacuum leak detection device with sound wave generating device and loudspeaker.In this feelings
Under condition, by being arranged the vacuum packaging product of plate between sound wave generating device and loudspeaker, measure by sound wave generating device
Occur and by loudspeaker detection sound press signal signal level, to determine whether vacuum leak.That is, in the inspection, very
Empty package product are had an effect between sound wave generating device and loudspeaker as acoustic material, further, in vacuum packaging product
In the case where vacuum leak occurs, increased using audio fruit is hidden caused by the presence by air.
Existing technical literature
Patent document
Patent document 1:(Japan) Japanese Laid-Open Patent Publication 10-206259 bulletin
Summary of the invention
But in above-mentioned previous method, have the following problems, that is, if the mixed gas of institute in vacuum packaging product
Can not equably exist in the range of sound wave reaches, can not just carry out stable detection.
The present invention makes in view of the above problems, and its purpose is to provide the check devices and inspection of a kind of sealed package product
Checking method can check that whether there is or not gases for the inside of sealed package product, and can accurately check for foreign matter.It needs
Illustrate, in the record of following each components of the invention, to facilitate the understanding of the present invention, by the correspondence of embodiment
The appended drawing reference at place is recorded in parantheses, but should not be the appended drawing reference of embodiment by constituent element limited interpretation of the invention
Shown in corresponding position structure.
In order to achieve the above object, the feature in structure of the invention is check device (10) inspection of sealed package product
The inside of sealed package product (20) is looked into whether there is or not gas or foreign matter, the check device of the sealed package product includes ultrasonic wave
Sensor (11) sends probe (11a), probe receiver (11b) with signal, and sealed package product is located at signal transmission
Between probe and probe receiver, issued ultrasonic wave of popping one's head in is sent by making probe receiver receive signal, to examine
Survey sealed package product；Decision mechanism (18a), ultrasonic wave when detecting sealed package product according to ultrasonic sensor are worn
Saturating rate determines the gas or foreign matter that whether there are setting value or more in sealed package product.
In the check device of sealed package product of the invention, the signal of ultrasonic sensor sends probe and signal connects
It receives probe and is configured to grip seal packing articles.Therefore, it is issued by probe receiver reception signal transmission probe super
The intensity (amplitude of penetrated wave) of sound wave, be able to detect sealed package product be located at signal send probe with probe receiver it
Between, and be able to detect the part that ultrasonic wave penetrates in sealed package product and whether there is gas or foreign matter.Ultrasonic wave has
The decaying when penetrating sealed package product, and compared to the case where there is no gas or foreign matters, in sealed package product
Inside there are the gases such as air or foreign matter in the case where be more difficult the property penetrated.Therefore, received according to probe receiver
The intensity of ultrasonic wave can determine in sealed package product with the presence or absence of gas or foreign matter.
In this case, as the ultrasonic wave part to be penetrated in sealed package product, from sealed package product
Characteristic etc. from the point of view of, the part retained is easy in entrained gas or foreign matter it can be anticipated that in the case where, can choose the portion
Point, it also can choose the whole face of the linear parts for crossing sealed package product or sealed package product.Also, to making ultrasonic wave
Benchmark as defined in the section sets penetrated is to judge quality, comprising: whether assert there are gas more than setting value or foreign matter,
That is, with the presence or absence of the penetrance part below of setting, alternatively, even if there is the penetrance part below of setting, the part
Number or area whether more than setting value etc. as defined in benchmark.
Feature in other structures of the check device of sealed package product of the invention is to have carrying device
(12), make sealed package product be located at signal to send between probe and probe receiver, and keep sealed package product opposite
It is mobile in ultrasonic sensor.According to the present invention, since the position of the ultrasonic sensor relative to sealed package product can be with
Change, can arbitrarily partially checking to sealed package product.In addition, by making sealed package product relative to configuration
Ultrasonic sensor in specified position is mobile, can continuously check multiple sealed package products.
Feature in the other structures of the check device of sealed package product of the invention is to have enclosed mechanism (23),
Before making ultrasonic wave penetrate sealed package product, enclosed mechanism by make sealed package product pressurize in defined gas or
Person's decompression, and it is easily accessible gas or foreign matter in sealed package product.According to the present invention, due to making sealed package product exist
Defined gas pressurized perhaps decompression and expanding can make gas or foreign matter be easily accessible inside, so in sealed package system
In the case that product leak, the leakage can be more clearly detected.It should be noted that in the present invention, passing through attraction
Expansion caused by the surface of sealed package product is also included in decompression.
Feature in the structure of the inspection method of sealed package product of the invention is to use the sealed package product
Check device, to check that whether there is or not the inspection method of gas or the sealed package product of foreign matter, packets for the inside of sealed package product
Include: sealed package product detecting step is popped one's head in and arranged opposite with signal transmission probe in the signal transmission for issuing ultrasonic wave, and
It receives between the probe receiver that signal sends the ultrasonic wave that probe issues, configures sealed package product, wear ultrasonic wave
Saturating sealed package product；Determination step determines according to the penetrance for the ultrasonic wave for penetrating sealed package product in sealed package system
Whether the gas or foreign matter of setting value or more are had in product.
According to the present invention, sealed package article configurations are sent between probe and probe receiver in signal.Therefore, root
The intensity that probe sends the received ultrasonic wave of probe receiver is sent according to by signal, is able to detect that sealed package product position
It is sent between probe and probe receiver in signal, and be able to detect the part that ultrasonic wave penetrates in sealed package product to be
It is no there are gas or foreign matter.It in this case, can by keeping sealed package product mobile relative to ultrasonic sensor
To arbitrarily partially checking for sealed package product.
Feature in the other structures of the inspection method of sealed package product of the invention is to cross ultrasonic sensor
It is scanned to sealed package product, ultrasonic wave is made to penetrate sealed package product, to determine in the line for crossing sealed package product
Whether the gas or foreign matter of setting value or more are had on shape part.Although the part for scanning ultrasonic sensor can be sealing
The arbitrary portion of packing articles, but if gas can be prejudged or foreign matter is possible to the part retained, pass through this
Part.According to the present invention, in the case where gas or foreign matter are entered in sealed package product, there is quite high probability true
Recognize its presence.
Feature in the other structures of the inspection method of sealed package product of the invention is, close keeping compartment of terrain to cross
Seal packing articles multiple linear parts on, be scanned ultrasonic sensor, penetrate ultrasonic wave, come determine cross it is close
The gas or foreign matter for whether having setting value or more in multiple linear parts of packing articles sealed.In this case, make ultrasound
The interval for the linear parts that wave sensor is scanned, although can be suitably set according to the purpose of inspection, minimum is set as,
In undesirable sealed package product existing bubble perhaps in foreign matter size problematic bubble or foreign matter diameter degree.
In accordance with the invention it is possible to carry out the inspection of higher precision.
Feature in the other structures of the inspection method of sealed package product of the invention is to make ultrasonic sensor to close
The whole face of envelope packing articles is scanned, and penetrates ultrasonic wave, to determine whether there is setting value or more in sealed package product
Gas or foreign matter.According to the present invention, due to being able to detect that small bubble or foreign matter, it is able to carry out full accuracy
It checks.
Detailed description of the invention
Fig. 1 is the structure for indicating to be vacuum-packed the outline of the check device of product used in an embodiment of the present invention
Figure.
Fig. 2 is to indicate that the explanatory diagram that product is put into the state pressurizeed in pressure vessel will be vacuum-packed.
Fig. 3 is the explanatory diagram for indicating to be vacuum-packed the state that product carries out up-down stretch on absorption layer.
Fig. 4 is the image for indicating to carry out vacuum packaging product the 2-D data of the result of whole face scanning.
Fig. 5 is the explanatory diagram for the state for indicating that the defined part to vacuum packaging product is checked.
Fig. 6 is the explanatory diagram for the state for indicating that the defined linear parts to vacuum packaging product are checked.
Fig. 7 is the curve graph for indicating the relationship of inspection result and threshold value.
Specific embodiment
Hereinafter, being illustrated using attached drawing to an embodiment of the invention.Fig. 1 indicates to utilize present embodiment
Check device 10 checks that vacuum packaging product 20 has No leakage, that is, checks in vacuum packaging product 20 whether be mixed into the gas such as air
The state of body or foreign matter.In the following description, upper and lower, front and rear, left and right all directions are based on the direction of Fig. 1, a left side of Fig. 1
Lower section is front, and upper right side is rear.Check device 10 has the setting device (not shown) of setting vacuum packaging product 20, surpasses
Sonic sensor 11, the mobile device 12 for keeping ultrasonic sensor 11 mobile, encoder 17a, 17b, control device 18, display dress
Set 19.
Peripheral part or quadrangle that device holds vacuum packaging product 20 are set, open by the part other than grip portion
In the state of support vacuum packaging product 20.Ultrasonic sensor 11 sends probe 11a and receiving by the signal of sending ultrasonic wave
The probe receiver 11b that signal sends the ultrasonic wave that probe 11a is issued is constituted.Signal sends probe 11a by applying electricity
The piezoelectric element vibrated when pressure is constituted, and is vibrated and being stretched, expanded repeatedly when the voltage as defined in applying to send out
Raw ultrasonic wave.The signal send probe 11a generate ultrasonic wave, the ultrasonic wave by 40KHZ~number MHZ frequency shock wave structure
At.
The structure of probe receiver 11b is identical as signal transmission probe 11a, receives ultrasonic wave and simultaneously vibrates.Also, signal
The displacement generated by the vibration is converted to voltage signal by receiving transducer 11b.Signal sends probe 11a and is located in setting device
The top of the part of support vacuum packaging product 20, probe receiver 11b configuration send the lower section of probe 11a, letter in signal
Number send probe 11a in issue ultrasonic wave face in probe receiver 11b reception the face of ultrasonic wave it is opposed.The signal is sent
Probe 11a and probe receiver 11b are supported in support portion (not shown) respectively with the state that can be moved in the up-down direction.
Mobile device 12 by moving horizontally portion 13 and vertically moving portion 16 and constitute, make to support signal send probe 11a and
The support portion of probe receiver 11b is forwards, backwards, while move left and right, so that signal is sent probe 11a and probe receiver
11b is respectively moved in the up-down direction.Move horizontally portion 13 makes support portion in front-rear direction by the operating by X-axis motor 14
The X-axis driving portion of upper movement and move support portion in the lateral direction together with X-axis driving portion by the operating of Y-axis motor 15
Y-axis driving portion constitute.Vertically move portion 16 makes signal send probe 11a in upper and lower by the operating by top motor 16a
The top driving portion that moves up and move probe receiver 11b in the up-down direction by the operating of lower motor 16b
Lower part driving portion constitute.
Encoder 17a is arranged near the rotary shaft 14a of X-axis motor 14, detects the rotation of rotary shaft 14a and according to this
Rotation angle generates pulse.Although not shown, illumination region and acceptance part are arranged opposite in encoder 17a, its it
Between, it is configured to, configured with the disk being mounted on rotary shaft 14a, it is interrupted that the light that generates illumination region is formed on the disk
Slit.Also, encoder 17a export pulse, the pulse have with detected by acceptance part, by disk generate light it is interrupted
Corresponding quantity.
Therefore, which can be acquired to the rotation speed of rotary shaft 14a divided by the time.In addition, by encoder 17a institute
The pulse of generation can also acquire the moving distance in the front-back direction of ultrasonic sensor 11.The knot of encoder 17b and encoder 17a
Structure is identical, is arranged near the rotary shaft 15a of Y-axis motor 15.The pulse generated by encoder 17b, can acquire rotation
The moving distance of the left and right directions of the rotation speed and ultrasonic sensor 11 of axis 15a.
Control device 18 is made of main process task portion 18a, motor control part 18b, ultrasonic wave control unit 18c.Main process task portion 18a
Have CPU, ROM, RAM and timer, by connection wiring, is connected to motor control part 18b, ultrasonic wave control unit 18c and aobvious
Showing device 19.It is stored with CPU program to be executed in ROM, CPU is stored in RAM and executes the various data used when program.
CPU passes through motor control part 18b and ultrasonic wave control unit according to program stored in ROM and the data being stored in RAM
18c, to control the operating for each device being equipped in check device 10.It should be noted that constituting this using main process task portion 18a
The decision mechanism of invention.
The command signal that motor control part 18b is issued according to main process task portion 18a generates the telecommunications for being used to drive each motor
Number, via controller 18d, the operating of X-axis motor 14, Y-axis motor 15, top motor 16a and lower motor 16b is controlled
System.In addition, operating of the ultrasonic wave control unit 18c according to the main process task portion 18a command signal control ultrasonic sensor 11 issued.
Ultrasonic wave control unit 18c generates the electric signal of the transmission waveform of setpoint frequency, amplitude and wavelength etc., will be corresponding with the electric signal
Exciting the signal of shock wave is generated as with driving signal.Signal sends probe 11a and is issued according to driving signal driving and surpassed as a result,
Sound wave.
In addition, the probe receiver 11b ultrasonic signal received is transformed to by ultrasonic wave control unit 18c after amplification
Digital signal.Also, main process task portion 18a can obtain the biography about ultrasonic wave by performing operation the digital signal
Broadcast the various information of distance and intensity.By executing the obtained inspection result of processing made by these devices repeatedly, with curve
The form of figure or image is shown in display device 19.In addition, while encoder 17a, 17b generate pulse, main process task portion 18a
It controls signal and sends probe 11a so that it generates ultrasonic wave.Therefore, the every progress a certain distance of ultrasonic sensor 11 is mobile,
Ultrasonic wave will intermittently be generated.Also, image represented by display device 19 is, the portion being examined in product 20 is vacuum-packed
Point with the image indicated and according to ultrasonic wave penetrance and dipping and heaving curve graph.It is examined in point image
The penetrance of the ultrasonic wave of each section is indicated by the depth of image.
Secondly, for checking whether the inside of vacuum packaging product 20 deposits using the check device 10 with this kind of structure
It is illustrated in the method for gas or foreign matter.In this case, before being checked, preferably by schematically table in Fig. 2
23 pairs of vacuum packaging products 20 of the pressure vessel shown carry out pressurized treatments.Vacuum packaging product 20 is made of medical package, the doctor
The incorporating section 21 for treating center portion medical supplies (not shown) as defined in storing of packaging is constituted, and is formed with engagement in peripheral part
Portion 22.Also, the vacuum packaging product 20 is put into pressure vessel 23, is pressurizeed in air or helium.As a result, when
When the container of vacuum packaging product 20 leaks, the inside of air or helium indentation vacuum packaging product 20.
In addition, the pressurized treatments without using pressure vessel 23, also can use absorption layer (not shown), such as Fig. 3 institute
Show, by the upper and lower surface of vacuum packaging product 20 respectively to up-down stretch, to make that the expansion of product 20 is vacuum-packed.By this
Mode, in the case where the container that product 20 is vacuum-packed leaks, air or foreign matter in atmosphere immerse vacuum packaging
The inside of product 20.Like this, by the setting of vacuum packaging product 20 on setting device, which carried out place
Reason, so that inside is easily accessible gas or foreign matter.
Secondly, operating X-axis motor 14 and Y-axis motor 15, ultrasonic sensor 11 is made to be located at vacuum packaging product 20
The corner (corner of the upper left of Fig. 1) of rear left.Then, operate top motor 16a and lower motor 16b, adjustment signal
Position of the probe 11a and probe receiver 11b relative to vacuum packaging product 20 is sent, to be located at position appropriate
(preferably closer to better).Also, X-axis motor 14 is operated, keeps ultrasonic sensor 11 mobile from rear towards front.This
When, according to the pulse that encoder 17a is generated, signal sends probe 11a and generates ultrasonic wave.
When ultrasonic sensor 11 reaches the corner (corner of the lower-left of Fig. 1) of the front left of vacuum packaging product 20
When, the operating of X-axis motor 14 stops, and Y-axis motor 15 carries out short-time running.The slightly sidesway to the right of ultrasonic sensor 11 as a result,
It is dynamic.Next, making X-axis motor 14 to opposite direction rotation just now, keep ultrasonic sensor 11 mobile from front direction rear.And
And when ultrasonic sensor 11 reaches the rear end of vacuum packaging product 20, make the slightly sidesway to the right of ultrasonic sensor 11 again
It is dynamic, and repeat aforesaid operations.The processing reaches the front of vacuum packaging product 20 or the right side at rear portion in ultrasonic sensor 11
It is executed before the corner of side.Period, signal send probe 11a and intermittently generate ultrasonic wave.Also, signal sends probe 11a institute
The ultrasonic wave of generation is received after penetrating vacuum packaging product 20 by probe receiver 11b.
When the scanning for the vacuum packaging product 20 that ultrasonic sensor 11 carries out is completed, image A shown in Fig. 4 is as knot
Fruit is shown in display device 19.Image A be by probe receiver 11b received ultrasonic pulse intensity, i.e., pair
The intensity image that should be constituted in the 2-D data of penetrance, is expressed as, and white part is the big part of penetrance, with face
Discoloration is black, and penetrance becomes smaller.In Fig. 4, peripheral part shown in appended drawing reference a is part corresponding with joint portion 22, attached drawing
Mark the existing part for partially corresponding to unidentified gas or foreign matter in incorporating section 21 shown in b.In addition, attached drawing mark
Remember c1, partially corresponds to shown in c2 and recognize the presence due to gas or foreign matter in incorporating section 21 and make to penetrate signal drop
Low part, wherein gas represented by appended drawing reference c1 or foreign matter are remaining during fabrication for vacuum packaging product 20
Perhaps gas or foreign matter represented by foreign matter appended drawing reference c2 are leakage due to vacuum packaging product 20 and mixed to air
Air or helium or foreign matter etc..
For the quality of product 20 is vacuum-packed, determined using image A.In this case, it presets and wears
The threshold value for the number of leaking information, and be the quantity of threshold value point below by undesirable reference value, in the image A obtained by scanning
In, whether decision threshold defined point below is more than undesirable a reference value.In the judgement of such case, both it can use
The entire quantity of threshold value point below also can use and adjoin each other and in below quantity of threshold value.In addition, being tied checking
The intensity of fruit will be practically used for as F (x, y) using the intensity for being redefined for non-defective unit as G (x, y)
These relationships can also be denoted as following formulas 1 as T (x, y) by the function of judgement.
Formula 1
T (x, y)=F (x, y)-G (x, y) ... (1)
Also, be more than | T (x, y) | threshold value point quantity all more than undesirable a reference value, or less than T (x, y)
Threshold value point quantity in the case where undesirable a reference value, alternatively, being more than | T (x, y) | adjacent threshold value point number
Amount all more than undesirable a reference value, or the adjacent threshold value less than T (x, y) point quantity more than undesirable a reference value
In the case where, determine that the vacuum packaging product 20 is bad.Also, in the case where being determined by correlation function, in order to confirm class
Like property, the formula 2 of following convolutionals also can be used.
Formula 2
In this case, threshold value as defined in setting is determined as when the quantity beyond the range is more than setting quantity
It is bad.Inspection method in this way, due to being able to detect that small bubble or foreign matter, so being able to carry out high-precision
It checks.In addition, being also able to confirm that existing gas in vacuum packaging product 20 by the image A indicated in range estimation display device 19
Body or foreign matter.
In above-mentioned inspection, although being scanned to the whole face of vacuum packaging product 20, in vacuum packaging product 20
In the case where leaking, if the position that gas or foreign matter retain is known in advance, be not necessarily to very strict inspection, then it is only right
Defined a part of vacuum packaging product 20, which is checked, just can determine quality.For example, being sent out in vacuum packaging product 20
In the case where raw leakage, can be contemplated in advance on part represented by the appended drawing reference c2 of image A in Fig. 4 can retain gas or
Person's foreign matter.
In this case, shown in fig. 5 that product 20 is vacuum-packed, for example, ultrasonic sensor 11 is made to be located at point d
(in part shown in the appended drawing reference c2 of image A a bit), and so that signal is sent the ultrasonic wave that probe 11a is generated and penetrate vacuum
Behind the part of the point d of packing articles 20, received by probe receiver 11b.In this case, transmitted intensity is also preset
Threshold value, the received ultrasonic wave of probe receiver 11b below threshold value i.e. be determined as defective products, more than threshold value i.e. be determined as
Non-defective unit.It should be noted that in vacuum packaging product 20 shown in Fig. 5, as the identical position image A shown in Fig. 4
On there are gas or foreign matters, be represented by dotted lines with the corresponding part appended drawing reference c1, c2 of Fig. 4.
In addition, vacuum packaging product 20 scans inspection strict in this way if it is being not necessarily to carry out such as whole face, but only
In the case where checking to any and is insufficient, only the linear part for crossing vacuum packaging product 20 can also be checked.
In this case, as shown in fig. 6, in vacuum packaging product 20, for example, passing ultrasonic wave along point of contact e and the straight line of point f
Sensor 11 is mobile, during which, so that signal is sent the ultrasonic wave that probe 11a is generated and penetrates vacuum packaging product 20, and received by signal
The 11b that pops one's head in is received.Its result is shown as curve graph shown in Fig. 7 in display device 19.The curve graph is by point of contact e and point f
Straight line on the depth of each point be replaced into the size of up and down direction and be indicated.
In Fig. 7, horizontal axis indicates locating in vacuum packaging product 20, and the longitudinal axis indicates the transmitted intensity of ultrasonic wave.
Also, when curve g is indicated between the point e to point f by the scanning vacuum packaging product 20 of ultrasonic sensor 11, signal, which receives, to be visited
The intensity of the head received ultrasonic pulse of 11b.In addition, straight line h indicates the threshold value of setting.The value of the left and right sides in curve g
Major part indicates to penetrate the transmitted intensity of the ultrasonic wave at joint portion 22, the part expression storage of value of the others greater than straight line h
There is no the part of gas or foreign matter and penetrate that there are the ultrasonic waves of the outer peripheral portion of the part of gas or foreign matter in portion 21
Transmitted intensity.Also, the part of the value in curve g less than straight line h indicates, penetrates in incorporating section 21 that there are gas or foreign matters
Part in except outer peripheral portion private side part ultrasonic wave transmitted intensity.
In this case, judge be vacuum-packed product 20 quality with it is above-mentioned whole face is scanned when as.At this
In the case of kind, and for threshold value, (quantity of straight line h) point below is passing through the song for scanning and obtaining by undesirable reference value
In line g, whether decision threshold point below is more than undesirable a reference value.The judgement of such case, both can use threshold value with
Under point entire quantity, also can use continuous and in below quantity of threshold value.In addition, the intensity of inspection result is bent
Line chart will be practically used for the function of judgement as T using the intensity for being redefined for non-defective unit as G (x) as F (x)
(x), which can be indicated by following formula 3.
Formula 3
T (x)=F (x)-G (x) ... (3)
Also, be more than | T (x) | curve graph in threshold value point quantity all more than undesirable a reference value, or less than T
(x) quantity of the point of threshold value is in the case where undesirable a reference value in curve graph, alternatively, being more than | T (x) | curve graph in connect
The quantity of the point of continuous threshold value more than undesirable a reference value, or the threshold value adjacent less than in the curve graph of T (x) point number
In the case that amount is more than undesirable a reference value, it is determined as bad.It is similar in order to confirm in the case where being determined by correlation function
Property, the formula 4 of following convolutionals also can be used.
Number 4
In this case, threshold value as defined in setting is determined as when the quantity beyond the range is more than setting quantity
It is bad.By this inspection method, gas or foreign matter in vacuum packaging product 20 can be confirmed with higher accuracy rate, and
It can simplify to check.In addition, being also able to confirm that vacuum packaging product by indicating curve g and straight line h in display device 19
Existing gas or foreign matter in 20.In addition, in order to improve the precision of the inspection, additionally it is possible to keep being spaced and scan multiple threadiness
Part.
As described above, in the check device 10 of present embodiment, the signal of ultrasonic sensor 11 send probe 11a and
Probe receiver 11b is configured as hold vacuum packaging product 20.Therefore, by signal send probe 11a send and by
The intensity of the received ultrasonic wave of probe receiver 11b is able to detect that vacuum packaging product 20 is located at signal and sends probe 11a
Between probe receiver 11b, also, the part penetrated by ultrasonic wave in vacuum packaging product 20 can also be detected whether
There are gas or foreign matters
In addition, due to having the mobile device 12 for keeping ultrasonic sensor 11 mobile, can be checked in check device 10
It is supported in the arbitrary part of the vacuum packaging product 20 of setting device.Also, it in the present embodiment, is made to vacuum packaging
Before product 20 are checked, vacuum packaging product 20 is pressurizeed in pressure vessel 23, or utilize absorption layer, stretching vacuum packet
The upper and lower surface of dress product 20 makes its expansion.Therefore, in the case where the transmission leakage of product 20 is vacuum-packed, since inside enters
Gas or foreign matter are readily detected the leakage.
In addition, check device and inspection method of the invention is not limited to the embodiment, it is able to carry out change appropriate
And implement.For example, in said embodiment, by the setting of vacuum packaging product 20 in setting device, and making ultrasonic sensor
11 can forwards, backwards, move left and right, but vacuum packaging product 20 can also be transported to by carrying device on the right side of Fig. 1
Left side.In such a case, it is possible to move back and forth ultrasonic sensor 11 forwards, backwards, make ultrasonic sensor 11 on one side
Each pair of vacuum packaging product 20 carries out primary linear scanning, and product 20 will just be vacuum-packed and intermittently move certain distance.
Thereby, it is possible to continuously be checked multiple vacuum packaging products 20.Further, it is possible to omit the Y-axis driving with Y-axis motor 15
Portion.
In addition, in said embodiment, although using sealed package product as vacuum packaging product 20, sealing packet
Dress product is also possible to the flexible package punch product being accommodated in storage item in the container filled with liquid.Thereby, it is possible to obtain with
The same function and effect of the embodiment.Also, selection and judgement quality for the inspection part of sealed package product
Method, setting appropriate can also be carried out according to use purpose of the sealed package product etc..
Claims (6)
1. a kind of check device of sealed package product, which is characterized in that
The check device of the sealed package product check the inside of sealed package product whether there is or not gas or foreign matter,
The check device of the sealed package product includes
Enclosed mechanism, the enclosed mechanism by making the sealed package product pressurize or depressurize in defined gas, and
It is easily accessible gas or foreign matter in the sealed package product,
Ultrasonic sensor sends probe, probe receiver with signal, and the sealed package product is located at the signal
It sends between probe and the probe receiver, the sealed package product of relative movement often moves a certain distance, by making
It states probe receiver and receives the ultrasonic wave discontinuously issued from signal transmission probe, to detect the sealed package product；
Decision mechanism, the penetrance of ultrasonic wave when detecting the sealed package product according to the ultrasonic sensor, sentences
The gas or foreign matter for whether having setting value or more are scheduled in the sealed package product.
2. the check device of sealed package product as described in claim 1, which is characterized in that
With carrying device, the carrying device makes the sealed package product be located at signal transmission probe and the signal
Between receiving transducer, and keep the sealed package product mobile relative to the ultrasonic sensor.
3. a kind of inspection method of sealed package product, which is characterized in that
The inspection method of the sealed package product is often to be moved a certain distance and issued using the sealed package product of relative movement
The signal of interrupted ultrasonic wave sends probe and receives the probe receiver of ultrasonic wave, checks the interior of the sealed package product
Portion whether there is or not the inspection method of gas or the sealed package product of foreign matter,
The inspection method of the sealed package product includes:
Enclosed step makes gas or different by making the sealed package product pressurize perhaps decompression in defined gas
Object is easily accessible in the sealed package product；
Sealed package product detecting step sends between probe and the probe receiver in the signal, configures described close
Packing articles are sealed, ultrasonic wave is made to penetrate the sealed package product；
Determination step determines according to the penetrance for the ultrasonic wave for penetrating the sealed package product in the sealed package product
Inside whether there are the gas or foreign matter of setting value or more.
4. the inspection method of sealed package product as claimed in claim 3, which is characterized in that
It is scanned the ultrasonic sensor with crossing the sealed package product, ultrasonic wave is made to penetrate the sealed package
Product, to determine whether there is the gas or foreign matter of setting value or more in the linear parts for crossing the sealed package product.
5. the inspection method of sealed package product as claimed in claim 3, which is characterized in that
In the multiple linear parts for keeping compartment of terrain to cross the sealed package product, sweep the ultrasonic sensor
It retouches, penetrates ultrasonic wave, to determine whether there is setting value or more in the multiple linear parts for crossing the sealed package product
Gas or foreign matter.
6. the inspection method of sealed package product as claimed in claim 3, which is characterized in that
It is scanned the ultrasonic sensor to the whole face of the sealed package product, penetrates ultrasonic wave, to determine
Whether the gas or foreign matter of setting value or more are had in the sealed package product.
Priority Applications (1)
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| CN201910455538.4A CN110261046B (en) | 2013-10-02 | 2014-09-26 | Inspection device and inspection method for sealed packaged product |
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| JP2013206899 | 2013-10-02 | ||
| JP2013-206899 | 2013-10-02 | ||
| PCT/JP2014/075679 WO2015050061A1 (en) | 2013-10-02 | 2014-09-26 | Inspection device and inspection method for sealed packed product |
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| CN201910455538.4A Division CN110261046B (en) | 2013-10-02 | 2014-09-26 | Inspection device and inspection method for sealed packaged product |
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| CN201480054552.9A Active CN105829882B (en) | 2013-10-02 | 2014-09-26 | The check device and inspection method of sealed package product |
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| KR (2) | KR101950158B1 (en) |
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| KR102141380B1 (en) * | 2017-02-09 | 2020-08-05 | 주식회사 엘지화학 | Nondestructive Inspection System for Aluminum Pouch Sealing Using Ultrasonic Wave |
| EP3660480A4 (en) * | 2017-07-28 | 2021-04-21 | Yamaha Fine Technologies Co., Ltd. | Wheeled tire, and method for producing wheeled tire |
| CN109506847A (en) * | 2017-09-15 | 2019-03-22 | 国网安徽省电力公司濉溪县供电公司 | Transformer-cabinet ultrasonic wave automatic leak-checking device |
| CN107899967A (en) * | 2017-12-29 | 2018-04-13 | 许江 | A kind of product encapsulation leakage detection method and its device |
| JP6397600B1 (en) * | 2018-05-23 | 2018-09-26 | 株式会社日立パワーソリューションズ | POSITION CONTROL DEVICE, POSITION CONTROL METHOD, AND ULTRASONIC VIDEO SYSTEM |
| JP7112726B2 (en) * | 2018-08-10 | 2022-08-04 | ヤマハファインテック株式会社 | Ultrasonic inspection device and ultrasonic inspection method |
| JP7190154B2 (en) * | 2018-08-10 | 2022-12-15 | ヤマハファインテック株式会社 | ultrasonic inspection equipment |
| JP2023067095A (en) * | 2021-10-29 | 2023-05-16 | ヤマハファインテック株式会社 | Inspection method and inspection device |
| CN116558733B (en) * | 2023-07-11 | 2023-09-29 | 湖南大学 | State detection method, system, electronic device and storage medium |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2015050061A1 (en) | 2015-04-09 |
| CN105829882A (en) | 2016-08-03 |
| KR20180031818A (en) | 2018-03-28 |
| KR20160063375A (en) | 2016-06-03 |
| KR101950158B1 (en) | 2019-02-19 |
| JPWO2015050061A1 (en) | 2017-03-09 |
| JP6359545B2 (en) | 2018-07-18 |
| CN110261046A (en) | 2019-09-20 |
| CN110261046B (en) | 2022-08-19 |
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