WO2010147325A2 - Leakage tester - Google Patents
Leakage tester Download PDFInfo
- Publication number
- WO2010147325A2 WO2010147325A2 PCT/KR2010/003636 KR2010003636W WO2010147325A2 WO 2010147325 A2 WO2010147325 A2 WO 2010147325A2 KR 2010003636 W KR2010003636 W KR 2010003636W WO 2010147325 A2 WO2010147325 A2 WO 2010147325A2
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- WO
- WIPO (PCT)
- Prior art keywords
- tester
- container
- pressure
- vacuum
- vacuum pump
- Prior art date
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Classifications
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3281—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
Definitions
- the present invention relates to an airtightness tester, and more particularly, to an airtightness tester capable of easily and stably testing the sealing or airtightness of various packaging containers of food or pharmaceutical products such as pouches, capsules, and vacuum packaging containers. will be.
- medicines and foods in the form of pills or capsules, as well as various electronic products are distributed in the market by packaging such as PTP packaging, PE bottles, and three-side packaging.
- sealed packaging is very important for distribution on the market.
- a sealed packaging is very important for its distribution.
- the conventional airtightness tester 100 includes a tester container 101, a discharge container 102, a plurality of pipes, and a tester main body 103 provided with a vacuum pump. After the sample liquid is injected into the tester container 101, the sealed package product, which is the test object, is put in the sample liquid. Then, by driving the vacuum pump of the tester body is installed pressure gauge, the air in the tester container 101 is first discharged through the pipe to the discharge container 102 side, the water in the air is discharged container It is accommodated in 102, and only air is discharged to the vacuum pump side so as to form the inside of the tester container 101 in a vacuum. As a result, the tester container 101 is formed in a vacuum, and the sealed packaged product is allowed to penetrate by whether the sample liquid of the tester container 101 penetrates into the sealed package product under test by the vacuum pressure in the tester container. Checking confidentiality.
- the conventional airtightness tester 100 has a problem in that the tester container 101 and the tester main body 103 are connected by a plurality of pipes, thus taking up a lot of space for the airtightness test. .
- the conventional airtightness tester 100 has the inconvenience that the user must manually adjust so that the pressure in the tester container 101 maintains a constant pressure while checking the pressure gauge.
- the sealed packaging product supplied into the tester container 101 may move to the upper side of the tester container 101 by buoyancy due to the sample liquid. There was a problem that it was difficult to safely check the confidentiality of the product.
- the present invention is to solve the above problems of the prior art, the object of the present invention is to configure the tester container and the tester body integrally without taking up a lot of space, to automatically maintain the pressure in the tester container to the desired vacuum pressure It is to provide an air tightness tester that can test the air tightness.
- the present invention is an airtightness tester that can be safely tested to ensure that the sealed packaging product, which is the test object, floats due to buoyancy due to the sample liquid in the tester container, so that the part to be checked for airtightness does not deviate from the sample liquid.
- another object of the present invention is to provide a gas tightness tester that can be applied to a variety of sealed packaging products of one size even with one airtightness tester.
- the airtightness tester is composed of a cylindrical tester container in which a sample liquid is accommodated, and a tester body which is integrally installed with the tester container at a lower part of the tester container.
- the tester container includes a container body for accommodating a sample liquid, a lid portion placed on the container body and having a sealing member installed on the bottom of the contact portion with the container body, and one end of which is open at the top of the container body, and the other end thereof
- a guide tube connected to the vacuum line of the tester body through the bottom surface of the container body, wherein the tester body drives a vacuum pump connected to the vacuum line and the vacuum pump to drive a vacuum pressure in the tester container.
- a control unit for controlling to a desired vacuum pressure.
- a pressing part connected to the bottom of the cover part is further installed on the lower side of the cover part, and the pressing part has a plurality of connection rods connected to the bottom surface of the cover part, and a diameter smaller than an inner diameter of the container body connected to the connection rods. It characterized in that it comprises a pressing plate formed with a plurality of through holes.
- the tester body is characterized in that it further comprises a pressure sensor installed in the vacuum line on the downstream side of the guide tube, and a solenoid valve provided between the pressure sensor and the vacuum pump.
- the control unit senses a signal applied from the pressure sensor until a preset pressure is reached, opens the solenoid valve and drives the vacuum pump, and after reaching the set pressure, the controller It is characterized in that the control to maintain a constant pressure inside the tester by opening and closing the solenoid valve by sensing the applied signal and driving the vacuum pump.
- the airtightness tester further includes a discharge pipe including a discharge pipe which penetrates the bottom of the container body and an upper portion of the tester body to protrude out of the tester body, and an open / close valve installed on the discharge pipe. It is characterized by.
- the present invention having the above-described configuration, there is an advantage in that the airtightness of the sealed packaging product can be tested without taking up a lot of space by integrally configuring the tester container and the tester body.
- the pressure in the tester container is automatically maintained at the desired vacuum pressure for a desired time, so that the airtightness can be easily tested without the inconvenience of having to manually adjust and maintain the pressure manually as in the conventional airtightness tester.
- the sealed packaged product to be opened by buoyancy due to the sample liquid in the tester container, so that the part to be checked for airtightness does not deviate from the sample liquid. It can be safely tested and can be applied to sealed packaging products of various sizes even with one airtight tester by the built-in container.
- FIG. 1 is a view showing a gas tightness tester according to the prior art.
- FIG. 2 is a perspective view showing an airtightness tester according to the present invention.
- FIG. 3 is an exploded perspective view of FIG. 2.
- FIG. 4 is a view showing a lid portion of the present invention.
- 5 and 6 are diagrams showing the airtightness tester of the present invention.
- FIG. 7 is a view showing the interior container of the present invention.
- FIG. 8 is a view showing an operating concept of the tester body of the present invention.
- Figure 2 is a perspective view showing an air tightness tester according to the present invention
- Figure 3 is an exploded perspective view of Figure 2
- Figure 4 is a view showing the cover
- Figures 5 and 6 show the air tightness tester of the present invention
- Figure 7 is 8 is a view showing a built-in container
- Figure 8 is a view showing the operating concept of the tester body.
- the airtightness tester 1 is composed of a tester container 10 and the tester body 20, the tester container 10 and the tester body 20 It is constructed integrally.
- a sample liquid is accommodated in the tester container 10 and is formed in a substantially cylindrical shape.
- the tester container 10 is composed of a container body 11, the cover portion 12 and the guide tube (14).
- the container body 11 in the present embodiment, but having a cylindrical shape as an example, but is not necessarily limited to this may be configured in a variety of shapes.
- the container body 11 has a bottom portion 11a abutting the upper surface of the tester body, which will be described later, a wall portion 11b formed to extend vertically upward from the bottom portion, and a hook formed to protrude outward from the upper end of the wall portion. It is comprised by the jaw part 11c.
- the cover part 12 is placed on the locking jaw part 11c.
- the bottom portion 11a and the locking jaw portion 11c are formed to have a thickness of about 20 mm, and a groove is formed at the outer peripheral end of the bottom portion 11a, and the wall portion 11b is inserted into the groove.
- the inner surface of the portion where the wall portion 11b and the bottom portion 11a are in contact with each other is coated with an adhesive to prevent leakage of the sample liquid contained in the container body 11.
- the cover part 12 is placed on the upper portion of the container body (11).
- the cover part 12 is formed of a disc having a thickness of about 20 mm and is configured to have a considerable size, so that buoyancy by the sample liquid contained in the container body 11 acts on the cover part 12 so that the cover part It is comprised so that (12) does not float.
- the upper portion of the disc is provided with a handle portion 12b which is installed vertically upwards, the bottom surface of the disc is provided with a sealing material 12a at a portion where the cover portion 12 and the engaging jaw portion 11c abut, When the cover portion 12 is placed on the upper portion of the container body 11 is configured to seal the inside of the container body (11).
- the sealing material 12a is made of a material such as rubber packing, for example.
- the container body 11 and the cover part 12 is made of a material having a strength and weight of a predetermined or more, and the airtightness of the sealed packaging product is tested through the container body 11 and the cover part 12.
- the airtightness is made of a transparent material so that the naked eye can be observed.
- the container body 11 and the cover part 12 are made of acrylic material.
- a guide tube 14 is installed inside the container body 11.
- One end of the guide tube 14 is open at the upper end of the container body (11). That is, one end of the guide tube 14 is opened directly below the bottom of the cover portion 12, the container body 11 without mixing the sample liquid in the sealed container body 11 containing the sample liquid It is configured to inhale air and discharge it through the vacuum line.
- the guide tube 14 is preferably formed to be biased to one side in the container body 11 so that the installation of the pressing portion 13 to be described later.
- the other end of the guide tube 14 penetrates the bottom portion 11a of the container body 11, is formed of an acrylic material of the same material as the container body 11 of the container body 11 It is formed integrally with the bottom portion 11a.
- a connecting tube 15 is formed at the other end of the guide tube 14, and the connecting tube 15 is connected to the vacuum line of the tester body 20.
- the pressing part 13 connected to the bottom of the cover part 12 is further provided on the lower side of the cover part 12.
- the pressing portion 13 is composed of a pressing plate 13a and a connecting rod 13b.
- the pressing plate 13a is formed in a substantially disk shape and is configured to have a diameter smaller than the inner diameter of the container body 11.
- a plurality of through holes 13c are formed in the pressing plate 13a, and when the large amount of sample liquid is injected into the container body 11, the pressing plate 13a is not buoyant by the sample liquid and the sample liquid is not. It is comprised so that it may pass through this through-hole 13c.
- the pressing plate 13a is attached to the bottom surface of the cover part 12 via a plurality of connecting rods 13b.
- the airtightness of an elongated sealed packaged product such as a PET bottle is tested by the configuration of the pressing part 13
- the airtightness of the sealed packaged product is floated by buoyancy due to the sample liquid in the tester container and the airtightness must be confirmed.
- the test site can be safely tested so that the site to be removed does not deviate from the sample solution.
- the tester body 20 is integrally installed at the lower portion of the tester container 10.
- the tester main body 20 is provided with a vacuum pump 21, a solenoid valve 22, a pressure sensor 23, a control unit 25, and a display panel 28.
- the display panel 28 is provided with a plurality of lamps and buttons, such as an ON / OFF lamp, a power lamp, a time adjusting button, a pressure adjusting button, and the plurality of lamps and buttons are electrically connected to the control unit 25. .
- the pressure sensor 23, the solenoid valve 22 and the vacuum pump 21 are arranged along the vacuum line 26, the vacuum line 26 is the downstream end of the guide tube (14) It is connected to the connecting pipe 15 installed in.
- the pressure sensor 23 senses the pressure in the container body 11 and applies a signal to the controller 25.
- the solenoid valve 22 installed between the pressure sensor 23 and the vacuum pump is automatically opened and closed in accordance with an electrical signal from the control unit 25.
- the controller 25 drives the vacuum pump to control the vacuum pressure in the tester container 10 to a desired vacuum pressure.
- the controller 25 detects a signal applied from the pressure sensor 25 until the preset pressure is reached, opens the solenoid valve 22, and The vacuum pump 21 is driven. Then, after reaching the set pressure, the controller 25 detects a signal applied from the pressure sensor 23 for a preset time, opens and closes the solenoid valve 22, and opens the vacuum pump 21. Drive.
- the controller 25 opens the solenoid valve 22 and drives the vacuum pump 21 to provide the container body 11.
- the air inside is discharged to the outside through the vacuum line 26 to increase the vacuum pressure in the container body 11, and when the preset pressure is reached, the solenoid valve 22 is closed and the vacuum pump 21 The operation of stopping the driving is repeated to control the pressure in the tester container 10 to be kept constant.
- the user can automatically maintain the pressure in the tester container 10 at the desired vacuum pressure for the desired time by controlling the control of the control unit 25 by simply setting the desired pressure and time in advance.
- the user can easily test the air tightness without the inconvenience of having to manually adjust and maintain the pressure while watching the pressure gauge.
- the suction line 27 is branched to the vacuum line 26.
- a suction solenoid valve 24 is installed in the suction line 27, and the suction solenoid valve 24 is electrically connected to the control unit 25. Since the inside of the tester container 10 in which the airtightness test is completed is maintained at a constant vacuum pressure, it is difficult to open and close the cover part 12. Therefore, after the preset time ends, the controller 25 opens the suction solenoid valve 24 to inject external air into the tester container 10 through the suction line 27. The vacuum state is released to facilitate opening and closing of the cover part 12.
- the airtightness tester 1 may further include a built-in container 30.
- the interior container 30 is formed in a smaller size than the container body (11).
- the interior container 30 is composed of a substantially cylindrical interior body part 31 having an open top and a disk-shaped interior cover part 32.
- a plurality of holes 31a are formed in the bottom surface of the built-in body part 31, and the built-in base part 31 is configured so as not to be disturbed by buoyancy due to the sample liquid.
- the handle hole 31b is formed in the upper side of 31, and it is comprised so that a user may grasp easily.
- the interior cover portion 32 has a diameter smaller than the inner diameter of the interior body portion is configured to be accommodated in the interior body portion 31.
- a plurality of holes 32a are formed in the built-in lid part 32, and a handle 32b is formed in an upper surface thereof.
- the sealed packaging products may float due to the buoyancy of the sample liquid. Therefore, in order to perform a sufficient airtightness test, the sample liquid must be filled to the lower surface of the pressing part 13, but the small amount of sample liquid can be applied to the sealed packaging product even with a small amount of sample liquid by the configuration of the inner container 30. Sufficient airtightness test is possible.
- the airtightness tester 1 further comprises a discharge portion (40).
- the discharge portion 40 is composed of a discharge pipe 41 and the on-off valve 42.
- the discharge pipe 41 penetrates the bottom portion 11a of the container body and the upper portion of the tester body 20 and protrudes out of the tester body 20.
- the discharge pipe 41 is connected to the open / close valve 42 on the outside of the tester body 20.
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Abstract
The present invention relates to a leakage tester for simple and stable test of the sealed state or leakage of various kinds of packing containers for food and medicine, such as pouches, capsules and vacuum packing containers. The leakage tester comprises: a cylindrical tester container having a container body for storing a sample liquid therein, a cover part, and a guide pipe, of which one end is open at the upper end of the container body and the other end passes through the bottom of the container body, thereby connecting the guide pipe to a vacuum line of a tester body; and the tester body formed integrally with the tester container, and having a vacuum pump connected to the vacuum line and a control unit for controlling the vacuum pressure in the tester container to be at a desired level by activating the vacuum pump. A solenoid valve is opened and the vacuum pump is activated by detection of a signal transmitted by a pressure sensor until the pressure in the tester container reaches a preset pressure level, and the solenoid valve is opened/closed and the vacuum pump is activated by detection of a signal transmitted by the pressure sensor for a predetermined time period, subsequent to reaching the preset pressure, thereby retaining the pressure in the tester container. As the tester container and the tester body are formed integrally with each other, the leakage tester can perform a leakage test on sealed packing products without occupying a large space. Further, since the pressure in the tester container can be retained automatically at a desired level of pressure for a desired time period, a leakage test can be performed in a simple manner without need of inconvenient manual control of the pressure.
Description
๋ณธ ๋ฐ๋ช
์ ๊ธฐ๋ฐ๋ ์ํ๊ธฐ์ ๊ดํ ๊ฒ์ผ๋ก์, ๋์ฑ ์์ธํ๊ฒ๋ ํ์ฐ์น๋ ์บก์, ์ง๊ณตํฌ์ฅ์ฉ๊ธฐ ๋ฑ ์ํ์ด๋ ์์ฝํ์ ๊ฐ์ข
ํฌ์ฅ์ฉ๊ธฐ์ ๋ํ์ฌ ๋ฐ๋ด์ฌ๋ถ ๋๋ ๊ธฐ๋ฐ๋๋ฅผ ๊ฐ๋จํ๊ณ ์์ ๋๊ฒ ์ํํ ์ ์๋ ๊ธฐ๋ฐ๋ ์ํ๊ธฐ์ ๊ดํ ๊ฒ์ด๋ค. The present invention relates to an airtightness tester, and more particularly, to an airtightness tester capable of easily and stably testing the sealing or airtightness of various packaging containers of food or pharmaceutical products such as pouches, capsules, and vacuum packaging containers. will be.
์ผ๋ฐ์ ์ผ๋ก, ์์ฝ์ด๋ ์บก์ ํํ๋ก ๋ ์์ฝํ์ด๋ ์ํ์ ๋ฌผ๋ก ๊ฐ์ข
์ ์์ ํ ๋ฑ์ PTPํฌ์ฅ์ด๋, PE ๋ณ, ์ผ๋ฉดํฌ์ฅ ๋ฑ์ ํฌ์ฅ์ ์ํด ์์ค์ ์ ํต๋๊ณ ์๋ค. In general, medicines and foods in the form of pills or capsules, as well as various electronic products, are distributed in the market by packaging such as PTP packaging, PE bottles, and three-side packaging.
ํนํ, ์์ฝํ์ด๋ ์ํ์ ๊ฒฝ์ฐ, ๊ณต๊ธฐ์์ ์ ์ด์ ์ํด ๋ถํจ๋๊ธฐ ์ฝ๊ธฐ ๋๋ฌธ์ ์์ค์ ์ ํต๋๊ธฐ ์ํด์๋ ๋ฐ๋ดํฌ์ฅ์ด ๋งค์ฐ ์ค์ํ๋ค. ๋ํ, ํ์ฐ์น ๋ฑ์ ์ก์ฒด ๋ฌผํ์ด ์์ฉ๋ ๊ฒฝ์ฐ ๊ทธ ์ ํต์ ์ํ์ฌ ๋ฐ๋ดํฌ์ฅ์ด ๋งค์ฐ ์ค์ํ๋ค. Especially in the case of medicines and foods, since they are easily rotted by contact with air, sealed packaging is very important for distribution on the market. In addition, when a liquid article is accommodated in a pouch or the like, a sealed packaging is very important for its distribution.
๋ฐ๋ผ์, ์์ ํ ๋ฐ์ ๊ฐ์ด, ๋ฐ๋ดํฌ์ฅ์ด ๋ ์ ํ์ ๊ฒฝ์ฐ, ๊ธฐ๋ฐ๋๋ฅผ ์ํํ์ฌ ๋ฐ๋ดํฌ์ฅ์ ์์ ์ฑ์ ๋ํ ์ํ์ ํ๊ณ ์๋ค. Therefore, as described above, in the case of a product that has been sealed packaging, the airtightness is tested to test the safety of the sealed packaging.
๋ 1์ ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ๋ํ๋ธ๋ค. ๋ 1์ ๋ํ๋ธ ๋ฐ์ ๊ฐ์ด, ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ(100)๋, ํ
์คํฐ ์ฉ๊ธฐ(101)์, ๋ฐฐ์ถ์ฉ๊ธฐ(102)์, ๋ณต์์ ํ์ดํ์, ์ง๊ณตํํ๊ฐ ์ค์น๋ ์ํ๊ธฐ ๋ณธ์ฒด(103)๋ก ๊ตฌ์ฑ๋์ด, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101)์ ์๋ฃ์ก์ ์ฃผ์
ํ ํ, ํผ์ํ์ฒด์ธ ๋ฐ๋ดํฌ์ฅ์ ํ์ ์๊ธฐ ์๋ฃ์ก์ ์ ๊ธฐ๋๋ก ๋ฃ๋๋ค. ๊ทธ๋ฐ ๋ค์, ์๋ ฅ๊ฒ์ด์ง๊ฐ ์ค์น๋ ์ํ๊ธฐ ๋ณธ์ฒด์ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ์ฌ, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101) ๋ด์ ๊ณต๊ธฐ๊ฐ ์๊ธฐ ํ์ดํ๋ฅผ ํตํด ์ผ์ฐจ๋ก ์๊ธฐ ๋ฐฐ์ถ์ฉ๊ธฐ(102)์ธก์ผ๋ก ๋ฐฐ์ถ๋ ํ, ์๊ธฐ ๊ณต๊ธฐ ๋ด์ ์๋ถ์ ์๊ธฐ ๋ฐฐ์ถ์ฉ๊ธฐ(102)์ ์์ฉ๋๊ณ , ๊ณต๊ธฐ๋ง์ด ์๊ธฐ ์ง๊ณตํํ์ธก์ผ๋ก ๋ฐฐ์ถ๋์ด ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101)๋ด๋ฅผ ์ง๊ณต์ผ๋ก ํ์ฑํ๋๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์ด๋ก์จ, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101)๋ฅผ ์ง๊ณต์ผ๋ก ํ์ฑํ์ฌ, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ๋ด์ ์ง๊ณต์์ ์ํด ํผ์ํ์ฒด์ธ ๋ฐ๋ดํฌ์ฅ์ ํ ๋ด๋ถ๋ก ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101)์ ์๋ฃ์ก์ด ์นจํฌํ๋์ง์ ์ฌ๋ถ์ ์ํด ๋ฐ๋ดํฌ์ฅ์ ํ์ ๊ธฐ๋ฐ๋๋ฅผ ํ์ธํ๊ณ ์๋ค. 1 shows a conventional airtightness tester. As shown in FIG. 1, the conventional airtightness tester 100 includes a tester container 101, a discharge container 102, a plurality of pipes, and a tester main body 103 provided with a vacuum pump. After the sample liquid is injected into the tester container 101, the sealed package product, which is the test object, is put in the sample liquid. Then, by driving the vacuum pump of the tester body is installed pressure gauge, the air in the tester container 101 is first discharged through the pipe to the discharge container 102 side, the water in the air is discharged container It is accommodated in 102, and only air is discharged to the vacuum pump side so as to form the inside of the tester container 101 in a vacuum. As a result, the tester container 101 is formed in a vacuum, and the sealed packaged product is allowed to penetrate by whether the sample liquid of the tester container 101 penetrates into the sealed package product under test by the vacuum pressure in the tester container. Checking confidentiality.
๊ทธ๋ฌ๋, ์๊ธฐ ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ(100)๋ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101)์ ์ํ๊ธฐ ๋ณธ์ฒด(103)๊ฐ ๋ณต์์ ํ์ดํ์ ์ํด ์ฐ๊ฒฐ๋์ด ์๊ธฐ ๋๋ฌธ์, ๊ธฐ๋ฐ๋์ ์ํ์ ์ํ ๊ณต๊ฐ์ ๋ง์ด ์ฐจ์งํ๋ค๊ณ ํ๋ ๋ฌธ์ ์ ์ด ์์๋ค. However, the conventional airtightness tester 100 has a problem in that the tester container 101 and the tester main body 103 are connected by a plurality of pipes, thus taking up a lot of space for the airtightness test. .
๋ํ, ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ(100)๋ ์ฌ์ฉ์๊ฐ ์๋ ฅ๊ฒ์ด์ง๋ฅผ ํ์ธํ๋ฉด์, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101) ๋ด์ ์๋ ฅ์ด ์ผ์ ํ ์๋ ฅ์ ์ ์งํ๋๋ก ์๋์ผ๋ก ์ผ์ผ์ด ์กฐ์ ํ์ฌ์ผ ํ๋ค๊ณ ํ๋ ๋ถํธํจ์ด ์์๋ค. In addition, the conventional airtightness tester 100 has the inconvenience that the user must manually adjust so that the pressure in the tester container 101 maintains a constant pressure while checking the pressure gauge.
๋ํ, ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ(100)์ ์์ด์๋, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101) ๋ด์ ๊ณต๊ธ๋ ๋ฐ๋ดํฌ์ฅ์ ํ์ด ์๊ธฐ ์๋ฃ์ก์ผ๋ก ์ธํ ๋ถ๋ ฅ์ ์ํด ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(101)์ ์๋ถ์ธก์ผ๋ก ์ด๋ํ ์ฐ๋ ค๊ฐ ์๊ธฐ ๋๋ฌธ์ ๋ฐ๋ดํฌ์ฅ์ ํ์ ๊ธฐ๋ฐ๋๋ฅผ ์์ ํ๊ฒ ํ์ธํ๊ธฐ ์ด๋ ต๋ค๊ณ ํ๋ ๋ฌธ์ ์ ์ด ์์๋ค. In the conventional airtightness tester 100, the sealed packaging product supplied into the tester container 101 may move to the upper side of the tester container 101 by buoyancy due to the sample liquid. There was a problem that it was difficult to safely check the confidentiality of the product.
๋ณธ ๋ฐ๋ช
์ ์์ ํ ์ข
๋๊ธฐ์ ์ ๋ฌธ์ ์ ์ ํด๊ฒฐํ๊ณ ์ ํ๋ ๊ฒ์ผ๋ก์, ๋ณธ ๋ฐ๋ช
์ ๋ชฉ์ ์ ํ
์คํฐ ์ฉ๊ธฐ์ ์ํ๊ธฐ ๋ณธ์ฒด๋ฅผ ์ผ์ฒด๋ก ๊ตฌ์ฑํ์ฌ ๋ง์ ๊ณต๊ฐ์ ์ฐจ์งํ์ง ์๊ณ , ํ
์คํฐ ์ฉ๊ธฐ๋ด์ ์๋ ฅ์ ์ํ๋ ์ง๊ณต์์ผ๋ก ์๋์ผ๋ก ์ ์งํ์ฌ ๊ฐ๋จํ๊ฒ ๊ธฐ๋ฐ๋๋ฅผ ์ํํ ์ ์๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ์ ๊ณตํ๋ ๊ฒ์ด๋ค. The present invention is to solve the above problems of the prior art, the object of the present invention is to configure the tester container and the tester body integrally without taking up a lot of space, to automatically maintain the pressure in the tester container to the desired vacuum pressure It is to provide an air tightness tester that can test the air tightness.
๋ํ, ๋ณธ ๋ฐ๋ช
์ ํผ์ํ์ฒด์ธ ๋ฐ๋ดํฌ์ฅ์ ํ์ด ํ
์คํฐ ์ฉ๊ธฐ๋ด์ ์๋ฃ์ก์ผ๋ก ์ธํ ๋ถ๋ ฅ์ ์ํด ๋จ๊ฑฐ๋ ํ์ฌ ๊ธฐ๋ฐ๋๋ฅผ ํ์ธํ์ฌ์ผ ํ ๋ถ์๊ฐ ์๊ธฐ ์๋ฃ์ก์ผ๋ก๋ถํฐ ๋ฒ์ด๋๋ ์ผ์ด ์๋๋ก ํ์ฌ ์์ ํ๊ฒ ์ํํ ์ ์๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ์ ๊ณตํ๋ ๊ฒ์ ๋ค๋ฅธ ๋ชฉ์ ์ผ๋ก ํ๋ค. In addition, the present invention is an airtightness tester that can be safely tested to ensure that the sealed packaging product, which is the test object, floats due to buoyancy due to the sample liquid in the tester container, so that the part to be checked for airtightness does not deviate from the sample liquid. To provide a different purpose.
๋ํ, ๋ณธ ๋ฐ๋ช
์ ํ๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ก๋ ๋ค์ํ ํฌ๊ธฐ์ ๋ฐ๋ดํฌ์ฅ์ ํ์ ์ ์ฉํ ์ ์๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ์ ๊ณตํ๋ ๊ฒ์ ๋ ๋ค๋ฅธ ๋ชฉ์ ์ผ๋ก ํ๋ค. In addition, another object of the present invention is to provide a gas tightness tester that can be applied to a variety of sealed packaging products of one size even with one airtightness tester.
์์ ํ ๋ชฉ์ ์ ๋ฌ์ฑํ๊ธฐ ์ํ์ฌ, ๋ณธ ๋ฐ๋ช
์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋, ์๋ฃ์ก์ด ์์ฉ๋๋ ์ํต ํ์์ ํ
์คํฐ ์ฉ๊ธฐ์, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ์ ํ๋ถ์์ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ์ ์ผ์ฒด๋ก ์ค์น๋๋ ํ
์คํฐ ๋ณธ์ฒด๋ก ๊ตฌ์ฑ๋๋ฉฐ, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ๋ ์๋ฃ์ก์ด ์์ฉ๋๋ ์ฉ๊ธฐ๋ณธ์ฒด์, ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ์นํ ๋์ฌ์ง๋ฉฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ง๋ฟ๋ ๋ถ๋ถ์ ์ ๋ฉด์๋ ๋ฐ๋ด์ฌ๊ฐ ์ค์น๋์ด ์๋ ๋ฎ๊ฐ๋ถ์, ์ผ๋๋จ์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ์๋จ์์ ๊ฐ๋ฐฉ๋๋ฉฐ ํ๋๋จ์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ์ ๋ฉด์ ๊ดํตํ์ฌ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด์ ์ง๊ณต๋ผ์ธ์ ์ฐ๊ฒฐ๋๋ ๊ฐ์ด๋๊ด์ ๊ตฌ๋นํ๋ฉฐ, ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด๋ ์๊ธฐ ์ง๊ณต๋ผ์ธ์ ์ฐ๊ฒฐ๋๋ ์ง๊ณตํํ์, ์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ์ฌ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ ๋ด์ ์ง๊ณต์์ ์ํ๋ ์ง๊ณต์์ผ๋ก ์ ์ดํ๋ ์ ์ด๋ถ๋ฅผ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ค. In order to achieve the above object, the airtightness tester according to the present invention is composed of a cylindrical tester container in which a sample liquid is accommodated, and a tester body which is integrally installed with the tester container at a lower part of the tester container. The tester container includes a container body for accommodating a sample liquid, a lid portion placed on the container body and having a sealing member installed on the bottom of the contact portion with the container body, and one end of which is open at the top of the container body, and the other end thereof A guide tube connected to the vacuum line of the tester body through the bottom surface of the container body, wherein the tester body drives a vacuum pump connected to the vacuum line and the vacuum pump to drive a vacuum pressure in the tester container. And a control unit for controlling to a desired vacuum pressure.
์๊ธฐ ๋ฎ๊ฐ๋ถ์ ํ๋ถ์ธก์๋ ์๊ธฐ ๋ฎ๊ฐ๋ถ์ ์ ๋ฉด์ ์ฐ๊ฒฐ๋๋ ๋๋ฆ๋ถ๊ฐ ๋์ฑ ์ค์น๋๋ฉฐ, ์๊ธฐ ๋๋ฆ๋ถ๋ ์๊ธฐ ๋ฎ๊ฐ๋ถ์ ์ ๋ฉด์ ์ฐ๊ฒฐ๋๋ ๋ณต์์ ์ฐ๊ฒฐ๋ก๋์, ์๊ธฐ ์ฐ๊ฒฐ๋ก๋์ ์ฐ๊ฒฐ๋๋ฉฐ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ด๊ฒฝ๋ณด๋ค ์์ ์ง๊ฒฝ์ ๊ฐ์ง๋ฉฐ ๋ณต์์ ๊ดํตํ์ด ํ์ฑ๋ ๋๋ฆํ์ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ค. A pressing part connected to the bottom of the cover part is further installed on the lower side of the cover part, and the pressing part has a plurality of connection rods connected to the bottom surface of the cover part, and a diameter smaller than an inner diameter of the container body connected to the connection rods. It characterized in that it comprises a pressing plate formed with a plurality of through holes.
์ฌ๊ธฐ์, ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด๋, ์๊ธฐ ๊ฐ์ด๋๊ด์ ํ๋ฅ์ธก์์ ์ง๊ณต๋ผ์ธ์ ์ค์น๋๋ ์๋ ฅ์ผ์์, ์๊ธฐ ์๋ ฅ์ผ์์ ์๊ธฐ ์ง๊ณตํํ ์ฌ์ด์ ์ค์น๋๋ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ๋ฅผ ๋์ฑ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ค. Here, the tester body is characterized in that it further comprises a pressure sensor installed in the vacuum line on the downstream side of the guide tube, and a solenoid valve provided between the pressure sensor and the vacuum pump.
์๊ธฐ ์ ์ด๋ถ๋, ๋ฏธ๋ฆฌ ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ ๋๊น์ง ์๊ธฐ ์๋ ฅ์ผ์๋ก๋ถํฐ ์ธ๊ฐ๋ ์ ํธ๋ฅผ ๊ฐ์งํ์ฌ ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ๋ฅผ ๊ฐ๋ฐฉํ๊ณ ์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ๋ฉฐ, ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ ํ์๋ ๋ฏธ๋ฆฌ ์ค์ ๋ ์๊ฐ ๋์์ ์๊ธฐ ์๋ ฅ์ผ์๋ก๋ถํฐ ์ธ๊ฐ๋ ์ ํธ๋ฅผ ๊ฐ์งํ์ฌ ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ๋ฅผ ๊ฐํํ๊ณ ์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ์ฌ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ ๋ด๋ถ์ ์๋ ฅ์ ์ผ์ ํ๊ฒ ์ ์งํ๋๋ก ์ ์ดํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ค. The control unit senses a signal applied from the pressure sensor until a preset pressure is reached, opens the solenoid valve and drives the vacuum pump, and after reaching the set pressure, the controller It is characterized in that the control to maintain a constant pressure inside the tester by opening and closing the solenoid valve by sensing the applied signal and driving the vacuum pump.
์๊ธฐ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋, ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ฐ๋ฅ๋ถ ๋ฐ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด์ ์๋ถ๋ฅผ ๊ดํตํ์ฌ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด์ ์ธ์ธก์ผ๋ก ๋์ถํ์ฑ๋๋ ๋ฐฐ์ถํ์ดํ์, ์๊ธฐ ๋ฐฐ์ถํ์ดํ์ ์ค์น๋๋ ๊ฐํ๋ฐธ๋ธ๋ก ๊ตฌ์ฑ๋๋ ๋ฐฐ์ถ๋ถ๋ฅผ ๋์ฑ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ค. The airtightness tester further includes a discharge pipe including a discharge pipe which penetrates the bottom of the container body and an upper portion of the tester body to protrude out of the tester body, and an open / close valve installed on the discharge pipe. It is characterized by.
์์ ํ ๊ตฌ์ฑ์ ๊ฐ์ง๋ ๋ณธ ๋ฐ๋ช
์ ์ํ๋ฉด, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ์ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด๋ฅผ ์ผ์ฒด๋ก ๊ตฌ์ฑํ์ฌ ๋ง์ ๊ณต๊ฐ์ ์ฐจ์งํ์ง ์๊ณ ๋ ๋ฐ๋ดํฌ์ฅ์ ํ์ ๊ธฐ๋ฐ๋๋ฅผ ์ํํ ์ ์๋ ์ด์ ์ด ์๋ค. According to the present invention having the above-described configuration, there is an advantage in that the airtightness of the sealed packaging product can be tested without taking up a lot of space by integrally configuring the tester container and the tester body.
๋ํ, ํ
์คํฐ ์ฉ๊ธฐ๋ด์ ์๋ ฅ์ ์ํ๋ ์๊ฐ๋์์ ์ํ๋ ์ง๊ณต์์ผ๋ก ์๋์ผ๋ก ์ ์งํ์ฌ ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ์์์ ๊ฐ์ด ์๋์ผ๋ก ์ผ์ผ์ด ์๋ ฅ์ ์กฐ์ ํ์ฌ ์ ์งํ์ฌ์ผ ํ๋ ๋ถํธํจ์ด ์์ด ๊ฐํธํ๊ฒ ๊ธฐ๋ฐ๋๋ฅผ ์ํํ ์ ์๋ค. In addition, the pressure in the tester container is automatically maintained at the desired vacuum pressure for a desired time, so that the airtightness can be easily tested without the inconvenience of having to manually adjust and maintain the pressure manually as in the conventional airtightness tester.
๋ํ, ๋ณธ ๋ฐ๋ช
์ ์ํ๋ฉด, ์๊ธฐ ๋๋ฆ๋ถ์ ๊ตฌ์ฑ์ ์ํ์ฌ ํผ์ํ์ฒด์ธ ๋ฐ๋ดํฌ์ฅ์ ํ์ด ํ
์คํฐ ์ฉ๊ธฐ๋ด์ ์๋ฃ์ก์ผ๋ก ์ธํ ๋ถ๋ ฅ์ ์ํด ๋จ๊ฑฐ๋ ํ์ฌ ๊ธฐ๋ฐ๋๋ฅผ ํ์ธํ์ฌ์ผ ํ ๋ถ์๊ฐ ์๊ธฐ ์๋ฃ์ก์ผ๋ก๋ถํฐ ๋ฒ์ด๋๋ ์ผ์ด ์๋๋ก ํ์ฌ ์์ ํ๊ฒ ์ํํ ์ ์๊ณ , ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ์ ์ํด ํ๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ก๋ ๋ค์ํ ํฌ๊ธฐ์ ๋ฐ๋ดํฌ์ฅ์ ํ์ ์ ์ฉํ ์ ์๋ค. In addition, according to the present invention, by the configuration of the pressing portion, the sealed packaged product to be opened by buoyancy due to the sample liquid in the tester container, so that the part to be checked for airtightness does not deviate from the sample liquid. It can be safely tested and can be applied to sealed packaging products of various sizes even with one airtight tester by the built-in container.
๋ 1์ ์ข
๋ ๊ธฐ์ ์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด์ด๋ค. 1 is a view showing a gas tightness tester according to the prior art.
๋ 2๋ ๋ณธ ๋ฐ๋ช
์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ๋ํ๋ด๋ ์ฌ์๋์ด๋ค. 2 is a perspective view showing an airtightness tester according to the present invention.
๋ 3์ ๋ 2์ ๋ถํด์ฌ์๋์ด๋ค. 3 is an exploded perspective view of FIG. 2.
๋ 4๋ ๋ณธ ๋ฐ๋ช
์ ๋ฎ๊ฐ๋ถ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด์ด๋ค.4 is a view showing a lid portion of the present invention.
๋ 5 ๋ฐ ๋ 6์ ๋ณธ ๋ฐ๋ช
์ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด์ด๋ค. 5 and 6 are diagrams showing the airtightness tester of the present invention.
๋ 7์ ๋ณธ ๋ฐ๋ช
์ ๋ด์ฅ์ฉ๊ธฐ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด์ด๋ค. 7 is a view showing the interior container of the present invention.
๋ 8์ ๋ณธ ๋ฐ๋ช
์ ํ
์คํฐ ๋ณธ์ฒด์ ์๋๊ฐ๋
์ ๋ํ๋ด๋ ๋๋ฉด์ด๋ค. 8 is a view showing an operating concept of the tester body of the present invention.
์ดํ, ์ฒจ๋ถ๋ ๋๋ฉด์ ์ฐธ์กฐํ์ฌ ๋ณธ ๋ฐ๋ช
์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ์ค์์๋ก์จ ์์ธํ๊ฒ ์ค๋ช
ํ๋ค. Hereinafter, with reference to the accompanying drawings, the air tightness tester according to the present invention will be described in detail.
๋ 2๋ ๋ณธ ๋ฐ๋ช
์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ๋ํ๋ด๋ ์ฌ์๋, ๋ 3์ ๋ 2์ ๋ถํด์ฌ์๋, ๋ 4๋ ๋ฎ๊ฐ๋ถ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด, ๋ 5 ๋ฐ ๋ 6์ ๋ณธ ๋ฐ๋ช
์ ๊ธฐ๋ฐ๋์ํ๊ธฐ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด, ๋ 7์ ๋ด์ฅ์ฉ๊ธฐ๋ฅผ ๋ํ๋ด๋ ๋๋ฉด, ๋ 8์ ํ
์คํฐ ๋ณธ์ฒด์ ์๋๊ฐ๋
์ ๋ํ๋ด๋ ๋๋ฉด์ด๋ค. Figure 2 is a perspective view showing an air tightness tester according to the present invention, Figure 3 is an exploded perspective view of Figure 2, Figure 4 is a view showing the cover, Figures 5 and 6 show the air tightness tester of the present invention, Figure 7 is 8 is a view showing a built-in container, Figure 8 is a view showing the operating concept of the tester body.
๋ 2 ๋ด์ง ๋ 8์ ๋ํ๋ธ ๋ฐ์ ๊ฐ์ด, ๋ณธ ๋ฐ๋ช
์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ(1)๋ ํ
์คํฐ ์ฉ๊ธฐ(10)์ ํ
์คํฐ ๋ณธ์ฒด(20)๋ก ๊ตฌ์ฑ๋๋ฉฐ, ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10)์ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด(20)๋ ์ผ์ฒด๋ก ๊ตฌ์ฑ๋๋ค. As shown in Figures 2 to 8, the airtightness tester 1 according to the present invention is composed of a tester container 10 and the tester body 20, the tester container 10 and the tester body 20 It is constructed integrally.
์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10)์๋ ์๋ฃ์ก์ด ์์ฉ๋๋ฉฐ, ๋๋ต ์ํตํ์์ผ๋ก ํ์ฑ๋์ด ์๋ค. ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10)๋ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋ฎ๊ฐ๋ถ(12)์ ๊ฐ์ด๋๊ด(14)์ผ๋ก ๊ตฌ์ฑ๋์ด ์๋ค. A sample liquid is accommodated in the tester container 10 and is formed in a substantially cylindrical shape. The tester container 10 is composed of a container body 11, the cover portion 12 and the guide tube (14).
์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)๋, ๋ณธ ์ค์์์ ์์ด์๋ ์ํต ํ์์ผ๋ก ํ์ฑ๋ ๊ฒ์ ์๋ก ํ์์ผ๋ ๋ฐ๋์ ์ด์ ํ์ ๋์ง ์๊ณ ๋ค์ํ ํ์์ผ๋ก ๊ตฌ์ฑ๋ ์ ์๋ค. ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)๋ ํ์ ํ๋ ํ
์คํฐ ๋ณธ์ฒด์ ์๋ถ๋ฉด์ ๋ง๋ฟ๋ ๋ฐ๋ฅ๋ถ(11a)์, ์๊ธฐ ๋ฐ๋ฅ๋ถ๋ก๋ถํฐ ์์ง ์๋ฐฉ์ผ๋ก ์ฐ์ฅํ์ฌ ํ์ฑ๋ ๋ฒฝ๋ถ(11b)์, ์๊ธฐ ๋ฒฝ๋ถ์ ์๋จ์์ ์ธ์ธก์ ํฅํ์ฌ ๋์ถ ํ์ฑ๋ ๊ฑธ๋ฆผํฑ๋ถ(11c)๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์๊ธฐ ๊ฑธ๋ฆผํฑ๋ถ(11c)์๋ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๊ฐ ์นํ ๋์ฌ์ง๋ค. The container body 11, in the present embodiment, but having a cylindrical shape as an example, but is not necessarily limited to this may be configured in a variety of shapes. The container body 11 has a bottom portion 11a abutting the upper surface of the tester body, which will be described later, a wall portion 11b formed to extend vertically upward from the bottom portion, and a hook formed to protrude outward from the upper end of the wall portion. It is comprised by the jaw part 11c. The cover part 12 is placed on the locking jaw part 11c.
์๊ธฐ ๋ฐ๋ฅ๋ถ(11a)์ ์๊ธฐ ๊ฑธ๋ฆผํฑ๋ถ(11c)๋ ๋๋ต 20mm์ ๋์ ๋๊ป๋ก ํ์ฑ๋๋ฉฐ, ์๊ธฐ ๋ฐ๋ฅ๋ถ(11a)์ ์ธ์ฃผ์ฐ ๋๋จ์๋ ํ์ด ํ์ฑ๋๊ณ , ์๊ธฐ ํ์ ์๊ธฐ ๋ฒฝ๋ถ(11b)๊ฐ ๋ผ์๋ฃ์ด์ง๋ฉฐ, ์๊ธฐ ๋ฒฝ๋ถ(11b)์ ์๊ธฐ ๋ฐ๋ฅ๋ถ(11a)๊ฐ ๋ง๋ฟ๋ ๋ถ๋ถ์ ๋ด์ธก๋ฉด์๋ ์ ์ฐฉ์ ๋ฅผ ๋ํฌํ์ฌ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์์ฉ๋ ์๋ฃ์ก์ด ๋์๋์ง ์๋๋ก ๊ตฌ์ฑํ๋ค. The bottom portion 11a and the locking jaw portion 11c are formed to have a thickness of about 20 mm, and a groove is formed at the outer peripheral end of the bottom portion 11a, and the wall portion 11b is inserted into the groove. The inner surface of the portion where the wall portion 11b and the bottom portion 11a are in contact with each other is coated with an adhesive to prevent leakage of the sample liquid contained in the container body 11.
์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์๋ถ์๋ ๋ฎ๊ฐ๋ถ(12)๊ฐ ์นํ ๋์ฌ์ง๋ค. ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋ ๋๋ต 20mm์ ๋์ ๋๊ป์ ์ํ์ผ๋ก ํ์ฑ๋์ด ์๋นํ ํฌ๊ธฐ์ ์ค๋์ ๊ฐ๋๋ก ๊ตฌ์ฑ๋์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์์ฉ๋ ์๋ฃ์ก์ ์ํ ๋ถ๋ ฅ์ด ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)์ ์์ฉํ์ฌ ๋ฎ๊ฐ๋ถ(12)๊ฐ ๋จ์ง ์๋๋ก ๊ตฌ์ฑ๋๋ค. ์๊ธฐ ์ํ์ ์๋ถ์๋ ์์ง ์๋ฐฉ์ผ๋ก ์ธ์ ์ค์น๋๋ ์์ก์ด๋ถ(12b)๊ฐ ๋ง๋ จ๋๊ณ , ์๊ธฐ ์ํ์ ์ ๋ฉด์๋ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)์ ์๊ธฐ ๊ฑธ๋ฆผํฑ๋ถ(11c)๊ฐ ๋ง๋ฟ๋ ๋ถ๋ถ์ ๋ฐ๋ด์ฌ(12a)๊ฐ ์ค์น๋์ด, ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋ฅผ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์๋ถ์ ์น์ด ๋์๋์ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋ด๋ถ๊ฐ ๋ฐ๋ด๋๋๋ก ๊ตฌ์ฑ๋๋ค. ์๊ธฐ ๋ฐ๋ด์ฌ(12a)๋ ์๋ฅผ ๋ค๋ฉด ๊ณ ๋ฌดํจํน ๋ฑ์ ์ฌ์ง๋ก ๊ตฌ์ฑ๋๋ค. The cover part 12 is placed on the upper portion of the container body (11). The cover part 12 is formed of a disc having a thickness of about 20 mm and is configured to have a considerable size, so that buoyancy by the sample liquid contained in the container body 11 acts on the cover part 12 so that the cover part It is comprised so that (12) does not float. The upper portion of the disc is provided with a handle portion 12b which is installed vertically upwards, the bottom surface of the disc is provided with a sealing material 12a at a portion where the cover portion 12 and the engaging jaw portion 11c abut, When the cover portion 12 is placed on the upper portion of the container body 11 is configured to seal the inside of the container body (11). The sealing material 12a is made of a material such as rubber packing, for example.
์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋, ์ผ์ ์ด์์ ๊ฐ๋์ ์ค๋์ ๊ฐ์ง๋ ์ฌ์ง๋ก ๊ตฌ์ฑ๋๋ฉฐ, ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋ฅผ ํตํ์ฌ ๋ฐ๋ดํฌ์ฅ์ ํ์ ๊ธฐ๋ฐ๋๋ฅผ ์ํํ ๋์ ๊ธฐ๋ฐ๋๋ฅผ ์ก์์ผ๋ก๋ ๊ด์ฐฐํ ์ ์๋๋ก ํฌ๋ช
ํ ์ฌ์ง๋ก ๊ตฌ์ฑ๋๋ ๊ฒ์ด ๋ฐ๋์งํ๋ฉฐ, ๋ณธ ์ค์์์ ์์ด์ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋ ์ํฌ๋ฆด ์ฌ์ง๋ก ๊ตฌ์ฑ๋๋ค. The container body 11 and the cover part 12 is made of a material having a strength and weight of a predetermined or more, and the airtightness of the sealed packaging product is tested through the container body 11 and the cover part 12. In this case, it is preferable that the airtightness is made of a transparent material so that the naked eye can be observed. In this embodiment, the container body 11 and the cover part 12 are made of acrylic material.
์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋ด๋ถ์ธก์๋ ๊ฐ์ด๋๊ด(14)์ด ์ค์น๋๋ค. ์๊ธฐ ๊ฐ์ด๋๊ด(14)์ ์ผ๋๋จ์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ์๋จ์์ ๊ฐ๋ฐฉ๋์ด ์๋ค. ์ฆ, ์๊ธฐ ๊ฐ์ด๋๊ด(14)์ ์ผ๋๋จ์ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)์ ์ ๋ฉด ๋ฐ๋ก ์๋์์ ๊ฐ๋ฐฉ๋์ด, ์๋ฃ์ก์ด ์์ฉ๋ ๋ฐํ๋ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด๋ถ์์ ์๋ฃ์ก์ด ์์ด์ง ์์ผ๋ฉด์ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๊ณต๊ธฐ๋ฅผ ํก์
ํ์ฌ ์ง๊ณต๋ผ์ธ์ ํตํด ๋ฐฐ์ถํ ์ ์๋๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ๋ํ, ์๊ธฐ ๊ฐ์ด๋๊ด(14)์ ํ์ ํ๋ ๋๋ฆ๋ถ(13)์ ์ค์น๊ฐ ๋ฐฉํด๋์ง ์๋๋ก ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ์ผ์ธก์ ์น์ฐ์ณ ํ์ฑ๋๋ ๊ฒ์ด ๋ฐ๋์งํ๋ค. A guide tube 14 is installed inside the container body 11. One end of the guide tube 14 is open at the upper end of the container body (11). That is, one end of the guide tube 14 is opened directly below the bottom of the cover portion 12, the container body 11 without mixing the sample liquid in the sealed container body 11 containing the sample liquid It is configured to inhale air and discharge it through the vacuum line. In addition, the guide tube 14 is preferably formed to be biased to one side in the container body 11 so that the installation of the pressing portion 13 to be described later.
ํํธ, ์๊ธฐ ๊ฐ์ด๋๊ด(14)์ ํ๋๋จ์ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋ฐ๋ฅ๋ถ(11a)๋ฅผ ๊ดํตํ๋ฉฐ, ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋์ผํ ์ฌ์ง์ธ ์ํฌ๋ฆด ์ฌ์ง๋ก ํ์ฑ๋์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋ฐ๋ฅ๋ถ(11a)์ ์ผ์ฒด๋ก ํ์ฑ๋๋ค. ์๊ธฐ ๊ฐ์ด๋๊ด(14)์ ํ๋๋จ์๋ ์ฐ๊ฒฐ๊ด(15)์ด ํ์ฑ๋๋ฉฐ ์๊ธฐ ์ฐ๊ฒฐ๊ด(15)์ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด(20)์ ์ง๊ณต๋ผ์ธ์ ์ฐ๊ฒฐ๋๋ค. On the other hand, the other end of the guide tube 14 penetrates the bottom portion 11a of the container body 11, is formed of an acrylic material of the same material as the container body 11 of the container body 11 It is formed integrally with the bottom portion 11a. A connecting tube 15 is formed at the other end of the guide tube 14, and the connecting tube 15 is connected to the vacuum line of the tester body 20.
์๊ธฐ ๋ฎ๊ฐ๋ถ(12)์ ํ๋ถ์ธก์๋ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)์ ์ ๋ฉด์ ์ฐ๊ฒฐ๋๋ ๋๋ฆ๋ถ(13)๊ฐ ๋์ฑ ์ค์น๋๋ค. ์๊ธฐ ๋๋ฆ๋ถ(13)๋, ๋๋ฆํ(13a)๊ณผ ์ฐ๊ฒฐ๋ก๋(13b)๋ก ๊ตฌ์ฑ๋๋ค. ์๊ธฐ ๋๋ฆํ(13a)์ ๋๋ต ์๋ฐ ํ์์ผ๋ก ํ์ฑ๋์ด ์๊ณ , ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)์ ๋ด๊ฒฝ๋ณด๋ค ์์ ์ง๊ฒฝ์ ๊ฐ์ง๋๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์๊ธฐ ๋๋ฆํ(13a)์๋ ๋ณต์์ ๊ดํตํ(13c)์ด ํ์ฑ๋์ด, ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด๋ถ์ ๋ง์ ์์ ์๋ฃ์ก์ ์ฃผ์
ํ ๋์ ์๊ธฐ ๋๋ฆํ(13a)์ด ์๋ฃ์ก์ ์ํด ๋ถ๋ ฅ์ ๋ฐ์ง ์๊ณ ์๋ฃ์ก์ด ์๊ธฐ ๊ดํตํ(13c)์ ํตํด ํต๊ณผํ ์ ์๋๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์๊ธฐ ๋๋ฆํ(13a)์ ๋ณต์์ ์ฐ๊ฒฐ๋ก๋(13b)๋ฅผ ํตํด ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)์ ์ ๋ฉด์ ๋ถ์ฐฉ๋๋ค. The pressing part 13 connected to the bottom of the cover part 12 is further provided on the lower side of the cover part 12. The pressing portion 13 is composed of a pressing plate 13a and a connecting rod 13b. The pressing plate 13a is formed in a substantially disk shape and is configured to have a diameter smaller than the inner diameter of the container body 11. A plurality of through holes 13c are formed in the pressing plate 13a, and when the large amount of sample liquid is injected into the container body 11, the pressing plate 13a is not buoyant by the sample liquid and the sample liquid is not. It is comprised so that it may pass through this through-hole 13c. The pressing plate 13a is attached to the bottom surface of the cover part 12 via a plurality of connecting rods 13b.
์๊ธฐ ๋๋ฆ๋ถ(13)์ ๊ตฌ์ฑ์ ์ํด, PET๋ณ๊ณผ ๊ฐ์ ๊ธฐ๋ค๋ ํ์์ ๋ฐ๋ดํฌ์ฅ์ ํ์ ๊ธฐ๋ฐ๋๋ฅผ ์ํํ ๋์, ๋ฐ๋ดํฌ์ฅ์ ํ์ด ํ
์คํฐ ์ฉ๊ธฐ๋ด์ ์๋ฃ์ก์ผ๋ก ์ธํ ๋ถ๋ ฅ์ ์ํด ๋จ๊ฑฐ๋ ํ์ฌ ๊ธฐ๋ฐ๋๋ฅผ ํ์ธํ์ฌ์ผ ํ ๋ถ์๊ฐ ์๊ธฐ ์๋ฃ์ก์ผ๋ก๋ถํฐ ๋ฒ์ด๋๋ ์ผ์ด ์๋๋ก ํ์ฌ ์์ ํ๊ฒ ์ํํ ์ ์๋ค. When the airtightness of an elongated sealed packaged product such as a PET bottle is tested by the configuration of the pressing part 13, the airtightness of the sealed packaged product is floated by buoyancy due to the sample liquid in the tester container and the airtightness must be confirmed. The test site can be safely tested so that the site to be removed does not deviate from the sample solution.
์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10)์ ํ๋ถ์๋ ํ
์คํฐ ๋ณธ์ฒด(20)๊ฐ ์ผ์ฒด๋ก ์ค์น๋๋ค. ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด(20)์๋ ์ง๊ณตํํ(21)์, ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)์, ์๋ ฅ์ผ์(23)์ ์ ์ด๋ถ(25)์, ํ์ํจ๋(28)์ด ์ค์น๋์ด ์๋ค. The tester body 20 is integrally installed at the lower portion of the tester container 10. The tester main body 20 is provided with a vacuum pump 21, a solenoid valve 22, a pressure sensor 23, a control unit 25, and a display panel 28.
์๊ธฐ ํ์ํจ๋(28)์๋ ON/OFF๋จํ, ํ์๋จํ, ์๊ฐ์กฐ์ ๋ฒํผ, ์๋ ฅ์กฐ์ ๋ฒํผ ๋ฑ ๋ณต์์ ๋จํ์ ๋ฒํผ์ด ์ค์น๋๋ฉฐ, ์๊ธฐ ๋ณต์์ ๋จํ์ ๋ฒํผ์ ์๊ธฐ ์ ์ด๋ถ(25)์ ์ ๊ธฐ์ ์ผ๋ก ์ฐ๊ฒฐ๋์ด ์๋ค. The display panel 28 is provided with a plurality of lamps and buttons, such as an ON / OFF lamp, a power lamp, a time adjusting button, a pressure adjusting button, and the plurality of lamps and buttons are electrically connected to the control unit 25. .
์๊ธฐ ์๋ ฅ์ผ์(23)์, ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)์ ์๊ธฐ ์ง๊ณตํํ(21)๋ ์ง๊ณต๋ผ์ธ(26)์ ๋ฐ๋ผ ๋ฐฐ์น๋์ด ์๊ณ , ์๊ธฐ ์ง๊ณต๋ผ์ธ(26)์ ์๊ธฐ ๊ฐ์ด๋๊ด(14)์ ํ๋ฅ์ธก ๋๋จ์ ์ค์น๋ ์๊ธฐ ์ฐ๊ฒฐ๊ด(15)์ ์ฐ๊ฒฐ๋์ด ์๋ค. The pressure sensor 23, the solenoid valve 22 and the vacuum pump 21 are arranged along the vacuum line 26, the vacuum line 26 is the downstream end of the guide tube (14) It is connected to the connecting pipe 15 installed in.
์๊ธฐ ์๋ ฅ์ผ์(23)๋ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ์๋ ฅ์ ๊ฐ์งํ์ฌ ์๊ธฐ ์ ์ด๋ถ(25)์ ์ ํธ๋ฅผ ์ธ๊ฐํ๋ค. ์๊ธฐ ์๋ ฅ์ผ์(23)์ ์๊ธฐ ์ง๊ณตํํ ์ฌ์ด์ ์ค์น๋๋ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)๋ ์๊ธฐ ์ ์ด๋ถ(25)๋ก๋ถํฐ์ ์ ๊ธฐ์ ์ ํธ์ ๋ฐ๋ผ ์๋์ผ๋ก ๊ฐํ๋๋ค. The pressure sensor 23 senses the pressure in the container body 11 and applies a signal to the controller 25. The solenoid valve 22 installed between the pressure sensor 23 and the vacuum pump is automatically opened and closed in accordance with an electrical signal from the control unit 25.
์๊ธฐ ์ ์ด๋ถ(25)๋ ์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ์ฌ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10) ๋ด์ ์ง๊ณต์์ ์ํ๋ ์ง๊ณต์์ผ๋ก ์ ์ดํ๋ค. ์ฌ์ฉ์๊ฐ ์ํ๋ ์๋ ฅ๊ณผ ์๊ฐ์ ๋ฏธ๋ฆฌ ์ค์ ํ์ฌ ๋๋ฉด, ์๊ธฐ ์ ์ด๋ถ(25)๋, ๋ฏธ๋ฆฌ ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ ๋๊น์ง ์๊ธฐ ์๋ ฅ์ผ์(25)๋ก๋ถํฐ ์ธ๊ฐ๋ ์ ํธ๋ฅผ ๊ฐ์งํ์ฌ ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)๋ฅผ ๊ฐ๋ฐฉํ๊ณ ์๊ธฐ ์ง๊ณตํํ(21)๋ฅผ ๊ตฌ๋ํ๋ค. ๊ทธ๋ฐ ๋ค์, ์๊ธฐ ์ ์ด๋ถ(25)๋, ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ ํ์๋ ๋ฏธ๋ฆฌ ์ค์ ๋ ์๊ฐ ๋์์ ์๊ธฐ ์๋ ฅ์ผ์(23)๋ก๋ถํฐ ์ธ๊ฐ๋ ์ ํธ๋ฅผ ๊ฐ์งํ์ฌ ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)๋ฅผ ๊ฐํํ๊ณ ์๊ธฐ ์ง๊ณตํํ(21)๋ฅผ ๊ตฌ๋ํ๋ค. ๋ฏธ๋ฆฌ ์ค์ ๋ ์๊ฐ๋์์ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ์๋ ฅ์ด ๋ฏธ๋ฆฌ ์ค์ ๋ ์๋ ฅ ์ดํ๋ก ๋จ์ด์ง ๋์๋ ์๊ธฐ ์ ์ด๋ถ(25)๋ ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)๋ฅผ ๊ฐ๋ฐฉํ๊ณ ์๊ธฐ ์ง๊ณตํํ(21)๋ฅผ ๊ตฌ๋ํ์ฌ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ๊ณต๊ธฐ๋ฅผ ์๊ธฐ ์ง๊ณต๋ผ์ธ(26)์ ํตํด ์ธ๋ถ๋ก ๋ฐฐ์ถ์์ผ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ์ง๊ณต์์ ์ฆ๊ฐ์ํค๊ณ , ๋ฏธ๋ฆฌ ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ๋ฉด ์๊ธฐ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(22)๋ฅผ ํ์ํ๊ณ ์๊ธฐ ์ง๊ณตํํ(21)์ ๊ตฌ๋์ ์ค๋จํ๋ ๋์์ ๋ฐ๋ณตํ์ฌ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10) ๋ด๋ถ์ ์๋ ฅ์ ์ผ์ ํ๊ฒ ์ ์งํ๋๋ก ์ ์ดํ๋ค. The controller 25 drives the vacuum pump to control the vacuum pressure in the tester container 10 to a desired vacuum pressure. When the user sets a desired pressure and time in advance, the controller 25 detects a signal applied from the pressure sensor 25 until the preset pressure is reached, opens the solenoid valve 22, and The vacuum pump 21 is driven. Then, after reaching the set pressure, the controller 25 detects a signal applied from the pressure sensor 23 for a preset time, opens and closes the solenoid valve 22, and opens the vacuum pump 21. Drive. When the pressure in the container body 11 falls below a predetermined pressure for a predetermined time, the controller 25 opens the solenoid valve 22 and drives the vacuum pump 21 to provide the container body 11. The air inside is discharged to the outside through the vacuum line 26 to increase the vacuum pressure in the container body 11, and when the preset pressure is reached, the solenoid valve 22 is closed and the vacuum pump 21 The operation of stopping the driving is repeated to control the pressure in the tester container 10 to be kept constant.
์์ ํ ๋ฐ์ ๊ฐ์ด, ์ฌ์ฉ์๋ ์ํ๋ ์๋ ฅ๊ณผ ์๊ฐ์ ๋ฏธ๋ฆฌ ์ค์ ํ์ฌ ๋๊ธฐ๋ง ํ๋ฉด, ์๊ธฐ ์ ์ด๋ถ(25)์ ์ปจํธ๋กค์ ์ํด ํ
์คํฐ ์ฉ๊ธฐ(10)๋ด์ ์๋ ฅ์ ์ํ๋ ์๊ฐ๋์์ ์ํ๋ ์ง๊ณต์์ผ๋ก ์๋์ผ๋ก ์ ์งํ ์ ์์ผ๋ฏ๋ก, ์ข
๋์ ๊ธฐ๋ฐ๋์ํ๊ธฐ์์์ ๊ฐ์ด ์ฌ์ฉ์๊ฐ ์๋ ฅ๊ฒ์ด์ง๋ฅผ ๋ณด๋ฉด์ ์๋์ผ๋ก ์ผ์ผ์ด ์๋ ฅ์ ์กฐ์ ํ์ฌ ์ ์งํ์ฌ์ผ ํ๋ ๋ถํธํจ์ด ์์ด ๊ฐํธํ๊ฒ ๊ธฐ๋ฐ๋๋ฅผ ์ํํ ์ ์๋ค. As described above, the user can automatically maintain the pressure in the tester container 10 at the desired vacuum pressure for the desired time by controlling the control of the control unit 25 by simply setting the desired pressure and time in advance. As in the air tightness tester, the user can easily test the air tightness without the inconvenience of having to manually adjust and maintain the pressure while watching the pressure gauge.
์๊ธฐ ์ง๊ณต๋ผ์ธ(26)์๋ ํก์
๋ผ์ธ(27)์ด ๋ถ๊ธฐ๋์ด ํ์ฑ๋์ด ์๋ค. ์๊ธฐ ํก์
๋ผ์ธ(27)์๋ ํก์
์ฉ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(24)๊ฐ ์ค์น๋์ด ์๊ณ , ์๊ธฐ ํก์
์ฉ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(24)๋ ์๊ธฐ ์ ์ด๋ถ(25)์ ์ ๊ธฐ์ ์ผ๋ก ์ฐ๊ฒฐ๋์ด ์๋ค. ๊ธฐ๋ฐ๋ ์ํ์ด ์๋ฃ๋ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10) ๋ด๋ถ๋ ์ผ์ ์ง๊ณต์์ผ๋ก ์ ์ง๋์ด ์๊ธฐ ๋๋ฌธ์ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋ฅผ ๊ฐํํ๊ธฐ ์ด๋ ต๋ค. ๋ฐ๋ผ์, ๋ฏธ๋ฆฌ ์ค์ ๋ ์๊ฐ์ด ์ข
๋ฃํ ํ์๋ ์๊ธฐ ์ ์ด๋ถ(25)๋ ์๊ธฐ ํก์
์ฉ ์๋ ๋
ธ์ด๋ ๋ฐธ๋ธ(24)๋ฅผ ๊ฐ๋ฐฉํ์ฌ, ์๊ธฐ ํก์
๋ผ์ธ(27)์ ํตํด ์ธ๋ถ์ ๊ณต๊ธฐ๋ฅผ ์๊ธฐ ํ
์คํฐ ์ฉ๊ธฐ(10) ๋ด๋ถ๋ก ์ฃผ์
ํ์ฌ ์ง๊ณต์ํ๋ฅผ ํด์ ํ์ฌ ์๊ธฐ ๋ฎ๊ฐ๋ถ(12)๋ฅผ ์ฉ์ดํ๊ฒ ๊ฐํํ ์ ์๋๋ก ํ๋ค. The suction line 27 is branched to the vacuum line 26. A suction solenoid valve 24 is installed in the suction line 27, and the suction solenoid valve 24 is electrically connected to the control unit 25. Since the inside of the tester container 10 in which the airtightness test is completed is maintained at a constant vacuum pressure, it is difficult to open and close the cover part 12. Therefore, after the preset time ends, the controller 25 opens the suction solenoid valve 24 to inject external air into the tester container 10 through the suction line 27. The vacuum state is released to facilitate opening and closing of the cover part 12.
๋ณธ ๋ฐ๋ช
์ ์ํ ๊ธฐ๋ฐ๋์ํ๊ธฐ(1)๋ ๋ด์ฅ์ฉ๊ธฐ(30)๋ฅผ ๋์ฑ ๊ตฌ๋นํ ์ ์๋ค. ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ(30)๋ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11)๋ณด๋ค ์์ ํฌ๊ธฐ๋ก ํ์ฑ๋์ด ์๋ค. ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ(30)๋ ์๋ถ๊ฐ ๊ฐ๋ฐฉ๋ ๋๋ต ์ํตํ์์ ๋ด์ฅ์ฉ๊ธฐ๋ณธ์ฒด๋ถ(31)์ ์ํํ์์ ๋ด์ฅ๋ฎ๊ฐ๋ถ(32)๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ๋ณธ์ฒด๋ถ(31)์ ๋ฐ๋ฅ๋ฉด์๋ ๋ณต์์ ๊ตฌ๋ฉ(31a)์ด ํ์ฑ๋์ด, ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ๋ณธ์ฒด๋ถ(31)๊ฐ ์๋ฃ์ก์ ์ํ ๋ถ๋ ฅ์ ๋ฐฉํด๋ฐ์ง ์๋๋ก ๊ตฌ์ฑ๋์ด ์๊ณ , ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ๋ณธ์ฒด๋ถ(31)์ ์๋ถ์ธก์๋ ์์ก์ด๊ตฌ๋ฉ(31b)์ด ํ์ฑ๋์ด, ์ฌ์ฉ์๊ฐ ํ์งํ๊ธฐ ์ฉ์ดํ๋๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์๊ธฐ ๋ด์ฅ๋ฎ๊ฐ๋ถ(32)๋ ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ๋ณธ์ฒด๋ถ์ ๋ด๊ฒฝ๋ณด๋ค ์์ ์ง๊ฒฝ์ ๊ฐ์ง๋ฉฐ ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ๋ณธ์ฒด๋ถ(31)์ ์์ฉ๋ ์ ์๋๋ก ๊ตฌ์ฑ๋๋ค. ์๊ธฐ ๋ด์ฅ๋ฎ๊ฐ๋ถ(32)์๋ ๋ณต์์ ๊ตฌ๋ฉ(32a)์ด ํ์ฑ๋์ด ์๊ณ , ์๋ถ๋ฉด์๋ ์์ก์ด(32b)๊ฐ ํ์ฑ๋์ด ์๋ค. The airtightness tester 1 according to the present invention may further include a built-in container 30. The interior container 30 is formed in a smaller size than the container body (11). The interior container 30 is composed of a substantially cylindrical interior body part 31 having an open top and a disk-shaped interior cover part 32. A plurality of holes 31a are formed in the bottom surface of the built-in body part 31, and the built-in base part 31 is configured so as not to be disturbed by buoyancy due to the sample liquid. The handle hole 31b is formed in the upper side of 31, and it is comprised so that a user may grasp easily. The interior cover portion 32 has a diameter smaller than the inner diameter of the interior body portion is configured to be accommodated in the interior body portion 31. A plurality of holes 32a are formed in the built-in lid part 32, and a handle 32b is formed in an upper surface thereof.
์์ฝ์ด๋ ์บก์ ํํ์ ์์ฝํ ๋ฑ ์์ ํฌ๊ธฐ์ ๋ฐ๋ดํฌ์ฅ์ ํ์ ๋ํ ๊ธฐ๋ฐ๋ ์ํ์ ํ๋ ๊ฒฝ์ฐ, ๋ฐ๋ดํฌ์ฅ์ ํ์ด ์๋ฃ์ก์ ๋ถ๋ ฅ์ ์ํด ๋จ๊ฑฐ๋ ํ ์ผ๋ ค๊ฐ ์๋ค. ๋ฐ๋ผ์, ์ถฉ๋ถํ ๊ธฐ๋ฐ๋์ํ์ ํ๊ธฐ ์ํ์ฌ, ์๊ธฐ ๋๋ฆ๋ถ(13)์ ํ๋ถ๋ฉด๊น์ง ์๋ฃ์ก์ ์ฑ์์ผ ํ์ง๋ง, ์๊ธฐ ๋ด์ฅ์ฉ๊ธฐ(30)์ ๊ตฌ์ฑ์ ์ํด ์์ ์์ ์๋ฃ์ก์ผ๋ก๋ ์์ ํฌ๊ธฐ์ ๋ฐ๋ดํฌ์ฅ์ ํ์ ๋ํ ์ถฉ๋ถํ ๊ธฐ๋ฐ๋์ํ์ด ๊ฐ๋ฅํ๊ฒ ๋๋ค. When the airtightness test on small-sized sealed packaging products such as pills or capsules is carried out, the sealed packaging products may float due to the buoyancy of the sample liquid. Therefore, in order to perform a sufficient airtightness test, the sample liquid must be filled to the lower surface of the pressing part 13, but the small amount of sample liquid can be applied to the sealed packaging product even with a small amount of sample liquid by the configuration of the inner container 30. Sufficient airtightness test is possible.
ํํธ, ๋ณธ ๋ฐ๋ช
์ ์ํ ์๊ธฐ ๊ธฐ๋ฐ๋์ํ๊ธฐ(1)๋ ๋ฐฐ์ถ๋ถ(40)๋ฅผ ๋์ฑ ๊ตฌ๋นํ๋ค. ์๊ธฐ ๋ฐฐ์ถ๋ถ(40)๋ ๋ฐฐ์ถํ์ดํ(41)์ ๊ฐํ๋ฐธ๋ธ(42)๋ก ๊ตฌ์ฑ๋์ด ์๋ค. ์๊ธฐ ๋ฐฐ์ถํ์ดํ(41)๋ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ฐ๋ฅ๋ถ(11a) ๋ฐ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด(20)์ ์๋ถ๋ฅผ ๊ดํตํ๊ณ , ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด(20)์ ์ธ์ธก์ผ๋ก ๋์ถ๋์ด ํ์ฑ๋๋ค. ์๊ธฐ ๋ฐฐ์ถํ์ดํ(41)๋ ์๊ธฐ ํ
์คํฐ ๋ณธ์ฒด(20)์ ์ธ์ธก์์ ์๊ธฐ ๊ฐํ๋ฐธ๋ธ(42)์ ์ฐ๊ฒฐ๋์ด ์๋ค. ๊ธฐ๋ฐ๋ ์ํ์ด ์๋ฃ๋ ํ์ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ์๋ฃ์ก์ ๊ต์ฒดํ๊ฑฐ๋ ์ ๊ฑฐํ ํ์๊ฐ ์์ ๋์๋ ์๊ธฐ ๊ฐํ๋ฐธ๋ธ(42)๋ฅผ ๊ฐ๋ฐฉํ์ฌ ์๊ธฐ ๋ฐฐ์ถํ์ดํ(41)๋ฅผ ํตํด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด(11) ๋ด์ ์๋ฃ์ก์ ๊ฐ๋จํ๊ณ ์ฉ์ดํ๊ฒ ์ ๊ฑฐํ ์ ์๋ค. On the other hand, the airtightness tester 1 according to the present invention further comprises a discharge portion (40). The discharge portion 40 is composed of a discharge pipe 41 and the on-off valve 42. The discharge pipe 41 penetrates the bottom portion 11a of the container body and the upper portion of the tester body 20 and protrudes out of the tester body 20. The discharge pipe 41 is connected to the open / close valve 42 on the outside of the tester body 20. When the sample liquid in the container body 11 needs to be replaced or removed after the airtightness test is completed, the sample liquid in the container body 11 is opened through the discharge pipe 41 by opening and closing the valve 42. Can be removed simply and easily.
๋ณธ ์ค์์๋ ๋ณธ ๋ฐ๋ช
์ ํฌํจ๋๋ ๊ธฐ์ ์ ์ฌ์์ ์ผ๋ถ๋ฅผ ๋ช
ํํ๊ฒ ๋ํ๋ธ ๊ฒ์ ๋ถ๊ณผํ๋ฉฐ, ๋ณธ ๋ฐ๋ช
์ ๋ช
์ธ์์ ํฌํจ๋ ๊ธฐ์ ์ ์ฌ์์ ๋ฒ์ ๋ด์์ ๋น์
์๊ฐ ์ฉ์ดํ๊ฒ ์ ์ถํ ์ ์๋ ๋ณํ ์์ ๊ตฌ์ฒด์ ์ธ ์ค์์๋ ๋ชจ๋ ๋ณธ ๋ฐ๋ช
์ ๊ธฐ์ ์ ์ฌ์์ ํฌํจ๋๋ ๊ฒ์ ์๋ช
ํ๋ค.The present embodiment merely shows a part of the technical idea included in the present invention, and modifications and specific embodiments which can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification of the present invention are all Obviously, it is included in the technical idea of the present invention.
Claims (5)
- ์๋ฃ์ก์ด ์์ฉ๋๋ ์ํต ํ์์ ํ ์คํฐ ์ฉ๊ธฐ์, ์๊ธฐ ํ ์คํฐ ์ฉ๊ธฐ์ ํ๋ถ์์ ์๊ธฐ ํ ์คํฐ ์ฉ๊ธฐ์ ์ผ์ฒด๋ก ์ค์น๋๋ ํ ์คํฐ ๋ณธ์ฒด๋ก ๊ตฌ์ฑ๋๋ฉฐ, A cylindrical tester container containing a sample liquid, and a tester body which is integrally installed with the tester container at a lower portion of the tester container,์๊ธฐ ํ ์คํฐ ์ฉ๊ธฐ๋, The tester container,์๋ฃ์ก์ด ์์ฉ๋๋ ์ฉ๊ธฐ๋ณธ์ฒด์, A container body in which the sample liquid is accommodated;์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ์นํ ๋์ฌ์ง๋ฉฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ง๋ฟ๋ ๋ถ๋ถ์ ์ ๋ฉด์๋ ๋ฐ๋ด์ฌ๊ฐ ์ค์น๋์ด ์๋ ๋ฎ๊ฐ๋ถ์, A cover part placed on the container body and having a sealing material on a bottom surface of the portion contacting the container body;์ผ๋๋จ์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ์๋จ์์ ๊ฐ๋ฐฉ๋๋ฉฐ ํ๋๋จ์ด ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ์ ๋ฉด์ ๊ดํตํ์ฌ ์๊ธฐ ํ ์คํฐ ๋ณธ์ฒด์ ์ง๊ณต๋ผ์ธ์ ์ฐ๊ฒฐ๋๋ ๊ฐ์ด๋๊ด์ ๊ตฌ๋นํ๋ฉฐ, One end is open at the upper end of the container body and the other end is provided with a guide tube connected to the vacuum line of the tester body through the bottom of the container body,์๊ธฐ ํ ์คํฐ ๋ณธ์ฒด๋ The tester body์๊ธฐ ์ง๊ณต๋ผ์ธ์ ์ฐ๊ฒฐ๋๋ ์ง๊ณตํํ์, A vacuum pump connected to the vacuum line,์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ์ฌ ์๊ธฐ ํ ์คํฐ ์ฉ๊ธฐ ๋ด์ ์ง๊ณต์์ ์ํ๋ ์ง๊ณต์์ผ๋ก ์ ์ดํ๋ ์ ์ด๋ถ๋ฅผ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ.And a control unit for driving the vacuum pump to control the vacuum pressure in the tester container to a desired vacuum pressure.
- ์ 1 ํญ์ ์์ด์, The method of claim 1,์๊ธฐ ๋ฎ๊ฐ๋ถ์ ํ๋ถ์ธก์๋ ์๊ธฐ ๋ฎ๊ฐ๋ถ์ ์ ๋ฉด์ ์ฐ๊ฒฐ๋๋ ๋๋ฆ๋ถ๊ฐ ๋์ฑ ์ค์น๋๋ฉฐ, On the lower side of the cover portion is further provided a pressing portion connected to the bottom of the cover portion,์๊ธฐ ๋๋ฆ๋ถ๋, ์๊ธฐ ๋ฎ๊ฐ๋ถ์ ์ ๋ฉด์ ์ฐ๊ฒฐ๋๋ ๋ณต์์ ์ฐ๊ฒฐ๋ก๋์, ์๊ธฐ ์ฐ๊ฒฐ๋ก๋์ ์ฐ๊ฒฐ๋๋ฉฐ ์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ด๊ฒฝ๋ณด๋ค ์์ ์ง๊ฒฝ์ ๊ฐ์ง๋ฉฐ ๋ณต์์ ๊ดํตํ์ด ํ์ฑ๋ ๋๋ฆํ์ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ. The pressing part, the airtightness tester comprising a plurality of connecting rods connected to the bottom surface of the cover portion, and a pressing plate connected to the connecting rod and having a diameter smaller than the inner diameter of the container body and having a plurality of through holes formed therein. .
- ์ 1 ํญ์ ์์ด์, The method of claim 1,์๊ธฐ ํ ์คํฐ ๋ณธ์ฒด๋, The tester body,์๊ธฐ ๊ฐ์ด๋๊ด์ ํ๋ฅ์ธก์์ ์ง๊ณต๋ผ์ธ์ ์ค์น๋๋ ์๋ ฅ์ผ์์, A pressure sensor installed in the vacuum line on the downstream side of the guide tube;์๊ธฐ ์๋ ฅ์ผ์์ ์๊ธฐ ์ง๊ณตํํ ์ฌ์ด์ ์ค์น๋๋ ์๋ ๋ ธ์ด๋ ๋ฐธ๋ธ๋ฅผ ๋์ฑ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ.The air tightness tester further comprises a solenoid valve installed between the pressure sensor and the vacuum pump.
- ์ 3 ํญ์ ์์ด์, The method of claim 3, wherein์๊ธฐ ์ ์ด๋ถ๋, The control unit,๋ฏธ๋ฆฌ ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ ๋๊น์ง ์๊ธฐ ์๋ ฅ์ผ์๋ก๋ถํฐ ์ธ๊ฐ๋ ์ ํธ๋ฅผ ๊ฐ์งํ์ฌ ์๊ธฐ ์๋ ๋ ธ์ด๋ ๋ฐธ๋ธ๋ฅผ ๊ฐ๋ฐฉํ๊ณ ์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ๋ฉฐ, ์ค์ ๋ ์๋ ฅ์ ๋๋ฌํ ํ์๋ ๋ฏธ๋ฆฌ ์ค์ ๋ ์๊ฐ ๋์์ ์๊ธฐ ์๋ ฅ์ผ์๋ก๋ถํฐ ์ธ๊ฐ๋ ์ ํธ๋ฅผ ๊ฐ์งํ์ฌ ์๊ธฐ ์๋ ๋ ธ์ด๋ ๋ฐธ๋ธ๋ฅผ ๊ฐํํ๊ณ ์๊ธฐ ์ง๊ณตํํ๋ฅผ ๊ตฌ๋ํ์ฌ ์๊ธฐ ํ ์คํฐ ์ฉ๊ธฐ ๋ด๋ถ์ ์๋ ฅ์ ์ผ์ ํ๊ฒ ์ ์งํ๋๋ก ์ ์ดํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ. It detects the signal applied from the pressure sensor until a predetermined pressure is reached, opens the solenoid valve and drives the vacuum pump. After reaching the set pressure, the signal applied from the pressure sensor is set for a preset time. Sensing and opening and closing the solenoid valve and driving the vacuum pump to control to maintain a constant pressure inside the tester container.
- ์ 1 ํญ์ ์์ด์, The method of claim 1,์๊ธฐ ์ฉ๊ธฐ๋ณธ์ฒด์ ๋ฐ๋ฅ๋ถ ๋ฐ ์๊ธฐ ํ ์คํฐ ๋ณธ์ฒด์ ์๋ถ๋ฅผ ๊ดํตํ์ฌ ์๊ธฐ ํ ์คํฐ ๋ณธ์ฒด์ ์ธ์ธก์ผ๋ก ๋์ถํ์ฑ๋๋ ๋ฐฐ์ถํ์ดํ์, ์๊ธฐ ๋ฐฐ์ถํ์ดํ์ ์ค์น๋๋ ๊ฐํ๋ฐธ๋ธ๋ก ๊ตฌ์ฑ๋๋ ๋ฐฐ์ถ๋ถ๋ฅผ ๋์ฑ ๊ตฌ๋นํ๋ ๊ฒ์ ํน์ง์ผ๋ก ํ๋ ๊ธฐ๋ฐ๋์ํ๊ธฐ. The airtightness diagram further includes a discharge pipe configured to penetrate the bottom of the container body and the upper portion of the tester body to protrude outwardly of the tester body, and an open / close valve installed on the discharge pipe. Testing machine.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020090054325A KR100933481B1 (en) | 2009-06-18 | 2009-06-18 | Leakage tester |
| KR10-2009-0054325 | 2009-06-18 |
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| WO2010147325A2 true WO2010147325A2 (en) | 2010-12-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11067471B2 (en) * | 2016-07-28 | 2021-07-20 | I.M.A. Industria Macchine Automatiche S.P.A. | Device and method for checking pouches for filling lines |
| CN114166430A (en) * | 2021-11-10 | 2022-03-11 | ๆตๆฑๆ ่ฟชๆฃฎ่ฏไธๆ้ๅ ฌๅธ | Bubble release type package integrity detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103759900A (en) * | 2014-01-14 | 2014-04-30 | ๆฑ่็็พๅ ่ฃ ็งๆๆ้ๅ ฌๅธ | Detection method for PVC medicine packaging materials |
| CN110361140A (en) * | 2019-08-16 | 2019-10-22 | ่ๅ ไบไนๅฎถๅบญ็จๅๆ้ๅ ฌๅธ | It is a kind of for detecting the sealing test instrument of glass |
| KR102586276B1 (en) * | 2021-09-06 | 2023-10-11 | ๊ตญ๋ฐฉ๊ธฐ์ ํ์ง์ | Portable packaging leakage tester |
| CN117890033B (en) * | 2024-03-15 | 2024-06-21 | ่ฟไบๆธฏ่ทปๅผบๆบๆขฐๅถ้ ๆ้ๅ ฌๅธ | Low-temperature rotary joint airtight test equipment for LNG loading arm |
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| JP2566114B2 (en) * | 1994-03-22 | 1996-12-25 | ๅฒก้ใใซใ่ฃฝ้ ๆ ชๅผไผ็คพ | Compressible fluid leakage measurement device |
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| KR0130417Y1 (en) * | 1996-06-14 | 1998-12-01 | ์ค์๋ฌ | Sealing test machine of packaging articles |
| JP2002323399A (en) * | 2001-04-26 | 2002-11-08 | Toyota Motor Corp | Leak flow measuring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11067471B2 (en) * | 2016-07-28 | 2021-07-20 | I.M.A. Industria Macchine Automatiche S.P.A. | Device and method for checking pouches for filling lines |
| CN114166430A (en) * | 2021-11-10 | 2022-03-11 | ๆตๆฑๆ ่ฟชๆฃฎ่ฏไธๆ้ๅ ฌๅธ | Bubble release type package integrity detection method |
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| KR100933481B1 (en) | 2009-12-23 |
| WO2010147325A3 (en) | 2011-03-24 |
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