KR20170061951A - A apparatus for inspecting pet bottle and the method therefor - Google Patents

A apparatus for inspecting pet bottle and the method therefor Download PDF

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Publication number
KR20170061951A
KR20170061951A KR1020150167176A KR20150167176A KR20170061951A KR 20170061951 A KR20170061951 A KR 20170061951A KR 1020150167176 A KR1020150167176 A KR 1020150167176A KR 20150167176 A KR20150167176 A KR 20150167176A KR 20170061951 A KR20170061951 A KR 20170061951A
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KR
South Korea
Prior art keywords
pet bottle
unit
gas injection
inspection
pressure value
Prior art date
Application number
KR1020150167176A
Other languages
Korean (ko)
Inventor
이학원
장영주
박중석
Original Assignee
아레텍 주식회사
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Priority to KR1020150167176A priority Critical patent/KR20170061951A/en
Publication of KR20170061951A publication Critical patent/KR20170061951A/en

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/3404—Sorting according to other particular properties according to properties of containers or receptacles, e.g. rigidity, leaks, fill-level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G29/00—Rotary conveyors, e.g. rotating discs, arms, star-wheels or cones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/80—Turntables carrying articles or materials to be transferred, e.g. combined with ploughs or scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/84—Star-shaped wheels or devices having endless travelling belts or chains, the wheels or devices being equipped with article-engaging elements
    • B65G47/846—Star-shaped wheels or wheels equipped with article-engaging elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/88—Separating or stopping elements, e.g. fingers
    • 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
    • G01M3/3209—Details, e.g. container closure devices
    • 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
    • G01M3/3218—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 for flexible or elastic containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0235—Containers
    • B65G2201/0244—Bottles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00—Indexing codes relating to the kind or type of conveyors
    • B65G2812/14—Turntables

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to a PET bottle leak inspection apparatus and inspection method capable of automatically inspecting leakage occurrence of a manufactured PET bottle by dividing into two steps and separately inspecting defective products, The apparatus comprises: a PET bottle supply unit for sequentially supplying PET bottles; An index unit installed adjacent to the PET bottle supply unit and rotating the PET bottle supplied by the PET bottle supply unit along a predetermined circular orbit; A plurality of circularly arranged toner cartridges are arranged on the upper side of the index unit so as to rotate along the same orbit as the rotary motion trajectory of the PET bottle rotated by the index unit and connected to the inlet of the PET bottle rotated by the index unit, A plurality of gas injection modules for injecting gas; A module installation panel in which the plurality of gas injection modules are installed along a circular track; A module elevator installed between the module installation panel and the gas injection module and driving the gas injection module in a vertical direction; A panel rotating part for rotating the module installation panel at the same speed as the index part; When the gas injection module is coupled with the PET bottle, it is determined whether injection of a certain pressure of gas and reaching the normal pressure value within the first inspection time and whether the normal pressure value is maintained during the second inspection time after reaching the normal pressure value An inspection control unit for inspecting the inspection object; And a PET bottle discharging unit disposed adjacent to the index unit and discharging the PET bottle after passing through the index unit.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a PET bottle leak detection device,

The present invention relates to a PET bottle leak inspection apparatus, and more particularly, to a PET bottle leak inspection apparatus and a PET bottle leak inspection apparatus which can automatically detect whether leakage of a manufactured PET bottle occurs in two stages, ≪ / RTI >

PET bottles are simple containers that are used extensively in modern society. Generally, it is used to contain liquid contents, and since it can be recycled after use, its use is getting wider.

As described above, such a PET bottle contains liquid contents, and when leakage occurs during the manufacturing process, the contents may flow out to the outside during use. Therefore, defective products that leak when the PET bottle is manufactured should be separated and discarded in order to prevent the occurrence of subsequent problems.

Therefore, it is required to develop a technology that can check the leakage of PET bottles during the manufacture of PET bottles. However, the conventional leak inspection apparatus is not suitable for the leak inspection of PET bottles, as shown in Korean Patent No. 10-1402994, and is operated automatically at the same speed in a line where a plurality of PET bottles are produced in a continuous process in an automated line There is a problem that the function of checking the leak of the PET bottle is not provided.

Disclosure of Invention Technical Problem [8] The present invention provides a PET bottle leak inspection apparatus and inspection method that can automatically detect leakage of a manufactured PET bottle by dividing the bottle into two stages, and separately inspect the defective product.

According to an aspect of the present invention, there is provided a PET bottle leak inspecting apparatus comprising: a PET bottle dispenser for sequentially supplying PET bottles; An index unit installed adjacent to the PET bottle supply unit and rotating the PET bottle supplied by the PET bottle supply unit along a predetermined circular orbit; A plurality of circularly arranged toner cartridges are arranged on the upper side of the index unit so as to rotate along the same orbit as the rotary motion trajectory of the PET bottle rotated by the index unit and connected to the inlet of the PET bottle rotated by the index unit, A plurality of gas injection modules for injecting gas; A module installation panel in which the plurality of gas injection modules are installed along a circular track; A module elevator installed between the module installation panel and the gas injection module and driving the gas injection module in a vertical direction; A panel rotating part for rotating the module installation panel at the same speed as the index part; When the gas injection module is coupled with the PET bottle, it is determined whether injection of a certain pressure of gas and reaching the normal pressure value within the first inspection time and whether the normal pressure value is maintained during the second inspection time after reaching the normal pressure value An inspection control unit for inspecting the inspection object; And a PET bottle discharging unit disposed adjacent to the index unit and discharging the PET bottle after passing through the index unit.

The PET bottle leak inspection apparatus of the present invention may further include a product separating unit installed in the PET bottle discharging unit for separating and discharging a PET bottle determined as a good product by the inspection control unit and a product determined as a defective product.

In addition, the PET bottle leak inspection apparatus of the present invention may further include a display unit for displaying a result of inspection of the PET bottle inspected by the inspection control unit.

The present invention also provides a process for preparing a gas injection module, comprising: 1) combining a gas injection module with a PET bottle inlet; 2) injecting gas into the PET bottle at a constant pressure using the gas injection module; 3) determining whether the pressure inside the PET bottle reaches a normal pressure value within a first inspection time; 4) determining whether the normal pressure value is maintained for the second inspection time when the normal pressure value is reached within the first inspection time in the step 3); 5) determining whether the normal pressure value is maintained for the second inspection time, And discharging the PET bottle.

In the first step of the present invention, it is preferable that the PET bottle and the gas injection module are coupled while rotating the same circular orbit at the same speed.

Further, in the step 5) of the present invention, when the normal pressure value is not reached within the first inspection time in the step 3), or when the normal pressure value is not maintained during the second inspection time in the step 4) It is preferable to discharge it as a defective product.

According to the present invention, it is possible to reliably check the occurrence of leaks in PET bottles by confirming the normal pressure value reaching time and the retention time with respect to PET bottles in two steps. In particular, And it has a technical effect that can be automatically discharged for defective products.

1 is a perspective view showing a structure of a PET bottle leak inspection apparatus according to an embodiment of the present invention.
2 is a plan view showing a structure of a PET bottle leak inspection apparatus according to an embodiment of the present invention.
3 is a front view showing a structure of a PET bottle leak inspection apparatus according to an embodiment of the present invention.
4 is a perspective view illustrating a structure of a gas injection module and a panel rotating unit according to an embodiment of the present invention.
5 is a graph showing the relationship between pressure and time injected into a PET bottle in a PET bottle inspection method according to an embodiment of the present invention.
6 is a front view showing the structure of a PET bottle leak inspection apparatus in a state where a cover according to an embodiment of the present invention is installed.
7 is a process diagram of a PET bottle leak inspection method according to an embodiment of the present invention.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, the PET bottle leak inspection apparatus 100 according to the present embodiment includes a PET bottle supply unit 110, an index unit 120, a gas injection module 130, a module lift unit 140, A rotation unit 150, an inspection control unit (not shown in the figure), and a PET bottle discharging unit 160.

1 and 2, the PET bottle supply unit 110 includes PET bottles 1 provided in front of the PET bottle leak inspection apparatus 100 and continuously supplied from the outside at a constant speed to the index unit 120) in sequence. Of course, the PET bottle supply unit 110 may further include a buffer unit 112 for correcting a difference between the PET bottle movement speed in the index unit 120 and a speed supplied from the outside.

1 and 2, the index unit 120 is installed adjacent to the PET bottle supply unit 110, and the PET bottle 1 supplied by the PET bottle supply unit 110 is rotated in a predetermined circular orbit And is a component that rotates and moves along. That is, the PET bottles continuously supplied by the index unit 120 are subjected to a leakage inspection process while moving through process positions.

Accordingly, the index unit 120 includes a circular panel 122, a PET bottle insertion groove 124 formed at regular intervals to insert PET bottles along the outer periphery of the panel, and a rotation motor (not shown) for rotating the panel. And the like.

3, the gas injection module 130 is disposed on the upper side of the index part 120 along the same track as the rotational movement orbit of the PET bottle 1 rotated by the index part 120 A plurality of circles arranged to rotate so as to be rotatable, and is a component for injecting gas into the PET bottle by engaging with an inlet of the PET bottle 1 rotated by the index part 120. 4, the gas injection module 130 includes a plurality of gas injection modules arranged in a circular shape at equal intervals from the PET bottle insertion grooves 124 of the panel 122, The gas injection module is coupled with one PET bottle and injects the gas into the PET bottle as it moves.

Therefore, the lower portion of the gas injection module 130 has a structure capable of watering the inlet of the PET bottle 1, and has various structures that can inject gas supplied into the PET bottle, .

Next, the module mounting panel 170 is a component in which the plurality of gas injection modules 130 are installed along a circular track, as shown in FIG. In the present embodiment, the module mounting panel 170 is formed in a circular shape as a whole, and a connecting portion 172 connected to a gas supplying portion (not shown in the drawing) is formed at the center and a gas injecting module 130 is coupled A module mounting hole 174 is formed along the circular orbit.

4, the module elevating unit 140 is installed between the module mounting panel 170 and the gas injecting module 130, and drives the gas injecting module 130 in the vertical direction . 3, the gas injection module 130 coupled with the PET bottle is moved downward to be connected to the inlet of the PET bottle 1, and a gas injection module (130) ascends upward and is separated from the PET bottle which has been inspected.

4, the panel rotating unit 150 rotates the module mounting panel 170 at the same speed as that of the index unit 120. As shown in FIG. In this case, the panel rotating unit 150 has a structure in which the supply lines 132 for supplying gas from the gas supply unit to the respective gas injection modules can supply the gas without twisting, despite the continuous rotation.

Next, when the gas injection module 130 is coupled with the PET bottle 1, the inspection control unit (not shown) injects gas of a predetermined pressure and determines whether the normal pressure value is reached within the first inspection time, Value is reached and maintains the normal pressure value during the second check time.

Here, the 'first check time' refers to the time (T1) taken for the internal pressure of the PET bottle to reach a predetermined normal pressure value, as shown in FIG. 5, As shown in FIG.

As shown in FIG. 5, the 'second check time' refers to a time (T2) in which the pressure value is maintained without injection of the external gas while the gas is injected and the normal pressure value is reached. Inspection time is also predetermined by checking using normal PET bottles.

As a result, in the present embodiment, when the PET bottle to be inspected is moved to the inspection start position by the rotation of the index unit 120, the inspection control unit descends the gas injection module 130 to be coupled to the PET bottle 1. Then, the gas injection module 130 is operated to inject a gas of a predetermined pressure into the PET bottle 1, and it is inspected whether or not the normal pressure value is reached within the first inspection time. If the normal pressure value is reached within the first inspection time, it is determined that the product is a non-defective product.

And continuously checks whether or not the normal pressure value is maintained during the second inspection time after reaching the normal pressure value for the PET bottle determined as the regular product. If the inspection result shows that the normal pressure value is maintained during the second inspection time, it is determined that the product is a regular product, otherwise, it is determined to be a defective product.

1, the PET bottle discharging unit 160 is disposed adjacent to the discharging position of the index unit 120 and discharges PET bottles after passing through the index unit 120 Lt; / RTI > The PET bottle discharging unit 160 discharges the tested PET bottles to the outside according to the process speed of the continuous process like the PET bottle supplying unit 110. The PET bottle discharging unit 160 receives the PET bottles continuously discharged from the index unit 120, It is possible to have various structures that can be used.

Meanwhile, the PET bottle leak inspection apparatus 100 according to the present embodiment may further include a product separation unit (not shown). The product separating unit is a component installed in the PET bottle discharging unit 160 and separates and discharges a PET bottle determined as a good product by the inspection control unit and a product determined as a defective product. Therefore, when a PET bottle determined to be a defective product enters the PET bottle discharging unit 160, the product separating unit separates the defective PET bottle from the good product by separating and discharging the defective PET bottle at an appropriate position.

Next, the PET bottle leak inspection apparatus 100 according to the present embodiment may further include a display unit 180. The display unit 180 is a component for displaying inspection results of PET bottles inspected by the inspection control unit and may be installed in an interface unit for a user to operate the apparatus. Of course, the display unit may be separately provided.

Hereinafter, a method for checking the leak of a PET bottle according to the present embodiment will be described.

The PET bottle leak inspection method according to the present embodiment starts with the step S100 of coupling the PET bottle to the gas injection module 130, as shown in FIG. In this step, PET bottles continuously supplied from the outside are sequentially combined with the gas injection module 130.

In step S00, gas is injected into the PET bottle at a constant pressure using the gas injection module 130. This step may be performed while moving the gas injection module 130 and the PET bottle together in a circular orbit.

Next, the process of determining whether the pressure inside the PET bottle reaches the normal pressure value within the first inspection time T1 is performed (S300). In this step, it is determined whether or not the internal pressure value of the test subject bottle reaches the normal pressure value within the first inspection time T1 determined in advance by the normal product, and it is judged whether the product is good or not.

Next, when the normal pressure value is reached within the first check time T1 in the previous step S300, a step S400 of determining whether the normal pressure value is maintained for the second check time T2 is performed. In this step, it is determined whether or not the internal pressure of the PET bottle to be inspected maintains the normal pressure value during the second inspection time (T2) determined by measuring with the normal product, and it is judged whether the product is secondarily good or not.

Finally, the step of discharging the tested PET bottles into a good product and a defective product is performed (S500). If it is determined in step S300 that the normal pressure value has not been reached within the first inspection time or that the normal pressure value is not maintained during the second inspection time in step S400, And discharge it as a defective product.

100: a PET bottle leak inspection device according to an embodiment of the present invention
110: PET bottle dispenser 120: Index part
130: gas injection module 140: module elevating part
150: panel rotating part 160: PET bottle discharging part

Claims (6)

A PET bottle supply unit for sequentially supplying PET bottles;
An index unit installed adjacent to the PET bottle supply unit and rotating the PET bottle supplied by the PET bottle supply unit along a predetermined circular orbit;
A plurality of circularly arranged toner cartridges are arranged on the upper side of the index unit so as to rotate along the same orbit as the rotary motion trajectory of the PET bottle rotated by the index unit and connected to the inlet of the PET bottle rotated by the index unit, A plurality of gas injection modules for injecting gas;
A module installation panel in which the plurality of gas injection modules are installed along a circular track;
A module elevator installed between the module installation panel and the gas injection module and driving the gas injection module in the vertical direction;
A panel rotating part for rotating the module installation panel at the same speed as the index part;
When the gas injection module is coupled with the PET bottle, it is determined whether injection of a certain pressure of gas and reaching the normal pressure value within the first inspection time and whether the normal pressure value is maintained during the second inspection time after reaching the normal pressure value An inspection control unit for inspecting the inspection object;
And a PET bottle discharging unit disposed adjacent to the index unit and discharging the PET bottle after passing through the index unit. The method according to claim 1,
Further comprising a product separating unit installed in the PET bottle discharging unit for separating and discharging a PET bottle determined as a good product by the inspection control unit and a product determined as a defective product. The method according to claim 1,
Further comprising a display unit for displaying an inspection result on the PET bottle inspected by the inspection control unit. 1) coupling a gas injection module to a PET bottle inlet;
2) injecting gas into the PET bottle at a constant pressure using the gas injection module;
3) determining whether the pressure inside the PET bottle reaches a normal pressure value within a first inspection time;
4) determining whether the normal pressure value is maintained for the second check time when the normal pressure value is reached within the first check time in the step 3)
5) Separating the tested PET bottles into good and defective products and discharging them. 5. The method of claim 4, wherein in step (1)
Wherein the PET bottle and the gas injection module are coupled while rotating the same circular orbit at the same speed. 5. The method of claim 4, wherein in step 5)
When the normal pressure value is not reached within the first inspection time in the step 3) or the normal pressure value is not maintained during the second inspection time in the step 4), it is determined to be a defective product and discharged as a defective product Leak inspection method.
KR1020150167176A 2015-11-27 2015-11-27 A apparatus for inspecting pet bottle and the method therefor KR20170061951A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108393277A (en) * 2018-01-19 2018-08-14 广东汇伟塑胶股份有限公司 A kind of sorting mechanism and screening control method of screening gas leakage plastic bottle
CN110449375A (en) * 2019-09-05 2019-11-15 湖南人文科技学院 A kind of leakage detection apparatus for ampoule bottle air-leakage test
KR102095977B1 (en) 2018-10-16 2020-04-02 주식회사 에스디비 Apparatus for inspecting pet bottle leak
KR102095975B1 (en) 2018-10-16 2020-04-02 주식회사 에스디비 Apparatus for inspecting pet bottle leak
KR102119384B1 (en) * 2020-03-31 2020-06-05 주식회사 토모 Rotary conveyor used in facilities that automatically manufacture water purifiers
KR20210121620A (en) * 2020-03-31 2021-10-08 주식회사 토모 Safety clutch for rotary conveyor used in facilities that automatically manufacture water purifiers
KR20210148596A (en) * 2020-06-01 2021-12-08 (주)신일기계 Water bottle inspection system and method capable of odor and crack test

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108393277A (en) * 2018-01-19 2018-08-14 广东汇伟塑胶股份有限公司 A kind of sorting mechanism and screening control method of screening gas leakage plastic bottle
KR102095977B1 (en) 2018-10-16 2020-04-02 주식회사 에스디비 Apparatus for inspecting pet bottle leak
KR102095975B1 (en) 2018-10-16 2020-04-02 주식회사 에스디비 Apparatus for inspecting pet bottle leak
CN110449375A (en) * 2019-09-05 2019-11-15 湖南人文科技学院 A kind of leakage detection apparatus for ampoule bottle air-leakage test
CN110449375B (en) * 2019-09-05 2021-07-06 湖南人文科技学院 Leak detection device for detecting air tightness of ampoule bottle
KR102119384B1 (en) * 2020-03-31 2020-06-05 주식회사 토모 Rotary conveyor used in facilities that automatically manufacture water purifiers
KR20210121620A (en) * 2020-03-31 2021-10-08 주식회사 토모 Safety clutch for rotary conveyor used in facilities that automatically manufacture water purifiers
KR20210148596A (en) * 2020-06-01 2021-12-08 (주)신일기계 Water bottle inspection system and method capable of odor and crack test

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