CN112326157A - Negative pressure type air tightness detection device for food packaging - Google Patents
Negative pressure type air tightness detection device for food packaging Download PDFInfo
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- CN112326157A CN112326157A CN202011196123.9A CN202011196123A CN112326157A CN 112326157 A CN112326157 A CN 112326157A CN 202011196123 A CN202011196123 A CN 202011196123A CN 112326157 A CN112326157 A CN 112326157A
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- 238000001514 detection method Methods 0.000 title claims abstract description 138
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 53
- 235000013305 food Nutrition 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 abstract description 2
- 230000002950 deficient Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 8
- 230000032258 transport Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 235000021485 packed food Nutrition 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- G01M3/329—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 for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a negative pressure type air tightness detection device for food packaging, which relates to the technical field of food detection devices and comprises a detection table and two conveyor belts, wherein the two conveyor belts are respectively positioned at two sides of the detection table, a manipulator is arranged between the two conveyor belts and the detection table, a defective frame is arranged at the rear side of the detection table, a detection mechanism is arranged on the detection table and comprises a telescopic cylinder, a detection cylinder and an annular deep groove, the telescopic cylinder is arranged right above the detection table through a support, and an output end of the telescopic cylinder is coaxially and fixedly connected with the detection cylinder. The packing bag airtight detection of adaptation on the assembly line has improved airtight detection's efficiency greatly.
Description
Technical Field
The invention relates to the technical field of food detection devices, in particular to a negative-pressure type air tightness detection device for food packaging.
Background
When food safety detection is performed on packaged food, the air tightness of the packaging bag is an important detection item. If the air tightness of the packaging bag is poor, the food in the packaging bag is easy to deteriorate rapidly, so that the health of eating personnel is influenced and the loss of a food processing factory is caused.
In the prior art, when the air tightness of the packaging bag is detected, generally, a sealing device filled with water is vacuumized, the packaging bag is pressed into the water for air tightness detection, and the air tightness of the packaging bag is judged by observing the outward dissipation condition of the air in the packaging bag; this kind of detection mode detection efficiency is lower, can't satisfy the detection demand on the assembly line, and relate to the detection of watertight and can make to the wrapping bag surface attached moisture that is detected, the detection on the assembly line that is not applicable to equally, only can be used for the sampling of a small number of samples to detect, but detect less accurate prediction batch wrapping bag gas tightness of sample, it is very hard to waste time and energy then to detect the sample more, leads to the airtight detection of the food package bag on the unable effective adaptation assembly line of current airtight detection device.
Disclosure of Invention
The invention provides a negative-pressure type air tightness detection device for food packages, and aims to solve the problem that the air tightness detection device in the traditional technology cannot be effectively adapted to air tightness detection of food packages on a production line.
In order to achieve the purpose, the invention adopts the following technical scheme:
a negative pressure type air tightness detection device for food packaging comprises a detection table and two conveyor belts, wherein the two conveyor belts are respectively positioned on two sides of the detection table, a manipulator is arranged between the two conveyor belts and the detection table, a defective frame is arranged on the rear side of the detection table, a detection mechanism is arranged on the detection table and comprises a telescopic cylinder, a detection cylinder and an annular deep groove, the telescopic cylinder is arranged right above the detection table through a support, the output end of the telescopic cylinder is coaxially and fixedly connected with the detection cylinder, the annular deep groove is formed in the detection table, the bottom of the detection cylinder is communicated with the annular deep groove and is in sealing sliding fit with the annular deep groove, a detection cavity is formed between the detection cylinder and the upper surface of the detection table, a solenoid valve and a barometer are respectively arranged on two sides of the top of the detection cylinder, the solenoid valve is communicated with the detection cavity, the input end of the barometer, the control system is arranged in the detection platform and is electrically connected with the two manipulators and the telescopic cylinder.
Preferably, two the manipulator all adopts prior art and be respectively for transporting manipulator and letter sorting manipulator, wherein transport the manipulator and transport the wrapping bag on the conveyer belt to detecting the bench, and the letter sorting manipulator transports the wrapping bag that detects on the bench to next conveyer belt or delivers into in the unqualified frame.
Preferably, the control system receives a movement end signal of the transfer manipulator and controls the working states of the telescopic cylinder and the electromagnetic valve, and receives an air pressure signal of the air pressure gauge and controls the movement mode of the sorting manipulator.
Preferably, be provided with fixed establishment in examining the test table, fixed establishment includes a plurality of suction holes, ventilation pipe, exhaust fan and start-stop switch, and is a plurality of the suction hole is all seted up and is examined bench and one end and detect the chamber intercommunication, and the other end all communicates with the ventilation pipe, install the exhaust fan in the ventilation pipe and keep away from suction hole one end and annular deep groove intercommunication, exhaust fan electric connection has start-stop switch, start-stop switch installs and closes or open at annular deep groove entrance and along with detecting a section of thick bamboo business turn over annular deep groove.
Compared with the prior art, the invention has the following beneficial effects:
1. when the food packaging bag to be detected is subjected to airtight detection, the detection cylinder moves downwards, is sealed and inserted into the annular deep groove on the detection table, the electromagnetic valve is switched on in the process to enable the internal air pressure and the external air pressure to be consistent, the electromagnetic valve is switched off when the detection cylinder moves upwards, the internal air pressure of the detection cavity formed by the detection cylinder and the detection table is sealed and expanded at the moment and is reduced and stabilized on the preset air pressure, if the packaging bag leaks, the internal air pressure of the packaging bag is dissipated into the detection cavity, the air pressure in the detection cavity is increased, the barometer detects the signal, and the control system controls the sorting manipulator to discard the unqualified packaging bag to an unqualified frame, so that the airtight detection of the unqualified packaging bag is completed.
2. According to the invention, the packaging bag is detected by adopting the negative pressure formed in the sealed space, compared with extrusion type airtight detection, the packaging bag cannot be shielded by the two extrusion parts in contact with the packaging bag, so that the packaging bag can be detected completely without dead angles, the leakage position is prevented from being positioned at the contact part of the packaging bag and the extrusion parts, and the accuracy of the airtight detection of the packaging bag is further improved; and this kind of mode is compared in that extrusion formula airtight detects and only can detect inflatable food package bag, can also carry out effective detection to non-inflatable's wrapping bag, and application scope is wider.
3. When the air tightness detection is carried out, the detection cylinder is inserted into the annular deep groove, the opening and closing switch is triggered to close the exhaust fan, when the detection cylinder leaves the annular deep groove, the exhaust fan is opened after leaving the opening and closing switch, when the exhaust fan is opened, air is sucked from the air suction hole and then is sprayed out of the annular deep groove through the ventilation pipe, so that negative pressure is formed at the air suction hole to form negative pressure fixation on a packaging bag to be packaged, the packaging bag is favorably fixed by a packaging bag transferred by a transfer manipulator, the packaging bag is prevented from being separated from a detection table due to the influence of external wind power, meanwhile, the air sprayed out of the annular deep groove forms an annular air curtain, the influence of external component force on an air curtain inner packaging bag is weakened, the fixation effect on the packaging bag is further improved, and the.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the air flow during operation of the securing mechanism of the present invention;
FIG. 3 is a schematic view of the end of stroke state of the telescopic cylinder according to the present invention;
FIG. 4 is a schematic view of the detection state of the detection mechanism of the present invention.
In the figure: the device comprises a detection table 1, a conveyor belt 2, a detection mechanism 3, a telescopic cylinder 4, a detection cylinder 5, an electromagnetic valve 51, a barometer 52, a control system 53, an annular deep groove 6, an air vent 61, a detection cavity 7, a fixing mechanism 8, an air suction hole 81, a ventilation pipe 82, an exhaust fan 83 and an on-off switch 84.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a food package negative pressure formula airtight detection device, including examining test table 1 and two conveyer belts 2, two conveyer belts 2 are located respectively examine test table 1 both sides and examine test table 1 between all be provided with the manipulator, two conveyer belts 2 are used for conveying to wait to detect and detect the food package bag, examine test table 1 rear side and be provided with the unqualified frame, place airtight unqualified wrapping bag.
Two manipulators all adopt prior art and are respectively for transporting manipulator and letter sorting manipulator, wherein transport the wrapping bag of manipulator on with conveyer belt 2 and transport to detecting platform 1 on, the wrapping bag that the letter sorting manipulator will detect on the platform 1 transports to next conveyer belt 2 or delivers into in the unqualified frame.
Detect and be provided with detection mechanism 3 on the platform 1, detection mechanism 3 includes telescopic cylinder 4, detection section of thick bamboo 5 and annular deep trouth 6, and telescopic cylinder 4 passes through the support mounting and detects directly over the platform 1, and the coaxial fixedly connected with of output detects section of thick bamboo 5, and telescopic cylinder 4 works, and its output drives detection section of thick bamboo 5 back-and-forth movement.
Detect and seted up annular deep trouth 6 on the platform 1, detect a 5 bottoms link up and with the sealed sliding fit of annular deep trouth 6, detect a 5 and detect 1 upper surface formation of platform and detect chamber 7, when detecting a 5 downstream and inserting annular deep trouth 6, detect 7 spaces in chamber and reduce, otherwise increase.
The electromagnetic valve 51 and the barometer 52 are respectively installed on two sides of the top of the detection barrel 5, the electromagnetic valve 51 is communicated with the detection cavity 7 and the outside, the input end of the barometer 52 is communicated with the detection cavity 7, the electromagnetic valve 51 controls the tightness of the detection cavity 7, and the barometer 52 measures the air pressure in the detection cavity 7.
The electromagnetic valve 51 and the barometer 52 are both electrically connected with a control system 53, the control system 53 is arranged in the detection table 1 and is electrically connected with the two mechanical arms and the telescopic cylinder 4, the control system 53 is not marked in the drawing, the control system 53 receives a movement end signal of the transfer mechanical arm, controls the detection mechanism to start working, namely controls the working states of the telescopic cylinder 4 and the electromagnetic valve 51, receives an air pressure signal of the barometer 52 and controls the movement mode of the sorting mechanical arm.
Detect and be provided with fixed establishment 8 in the platform 1, fixed establishment 8 includes a plurality of suction holes 81, the ventilation pipe 82, exhaust fan 83 and on-off switch 84, a plurality of suction holes 81 are all seted up on detecting platform 1 and one end detects chamber 7 intercommunication, the other end all communicates with ventilation pipe 82, install exhaust fan 83 in the ventilation pipe 82 and keep away from suction hole 81 one end and annular deep trouth 6 intercommunication, exhaust fan 83 electric connection has on-off switch 84, on-off switch 84 is installed at annular deep trouth 6 entrance and is closed or open along with detecting cylinder 5 business turn over annular deep trouth 6, exhaust fan 83 during operation, from a plurality of suction holes 81 department absorbed air and from annular deep trouth 6 outside blowout, thereby it is fixed to the wrapping bag formation negative pressure on a plurality of suction holes 81. The normal operation of the detection process is facilitated.
The principles of the present invention are now described as follows:
when the food packaging bags to be detected are subjected to airtightness detection, the conveying manipulator conveys the packaging bags on the conveyor belt 2 to the detection table 1 and returns to the original positions, at the moment, the control system 53 detects a movement end signal of the conveying manipulator, controls the telescopic cylinder 4 above the detection table 1 to start a process and simultaneously controls the electromagnetic valve 51 on the detection cylinder 5 to be conducted, the output end of the telescopic cylinder 4 moves downwards to drive the detection cylinder 5 to move downwards to be inserted into the annular deep groove 6 on the detection table 1 in a sealing manner, and the detection cylinder 5 continues to move downwards and stops above the packaging bags;
then the control system 53 controls the telescopic cylinder 4 to start a return stroke and simultaneously controls the electromagnetic valve 51 to be closed, the detection cylinder 5 moves upwards along the annular deep groove 6 and stays at a preset height without being separated from the annular deep groove 6, at the moment, the air pressure inside a detection cavity 7 formed by the detection cylinder 5 and the detection platform 1 is sealed and expanded, is reduced and is stabilized at the preset air pressure, the barometer 52 on the detection cylinder 5 detects the air pressure, if the air pressure is kept near the preset negative pressure, the packaging bag does not leak, and the sorting manipulator transports the packaging bag to the next conveyor belt 2 after the electromagnetic valve 51 is switched on and the telescopic cylinder 4 finishes the return stroke;
if the air pressure is higher than the preset negative pressure, namely the air in the packaging bag is leaked and escapes into the detection cavity 7, the sorting mechanical arm transfers the unqualified packaging bag into the unqualified frame, so that the air tightness detection of the unqualified packaging bag is completed, the detection method is simple and easy to implement, does not need watertight assistance, is adaptive to the air tightness detection of the packaging bag on a production line, and greatly improves the air tightness detection efficiency;
compared with extrusion type airtight detection, the device adopts a method for detecting the packaging bag by forming negative pressure in the sealed space, and the packaging bag cannot be shielded by two extrusion parts in contact with the packaging bag, so that the packaging bag can be detected completely without dead angles, the leakage position is prevented from being positioned at the contact part of the packaging bag and the extrusion parts, and the accuracy of the airtight detection of the packaging bag is improved; compared with extrusion type airtight detection, the mode can only detect inflatable food packaging bags and can also effectively detect non-inflatable packaging bags, and the application range is wider;
before and after the air tightness detection, when the detection cylinder 5 is inserted into the annular deep groove 6, an on-off switch 84 arranged on the annular deep groove 6 is triggered to close an exhaust fan 83 in a ventilation pipe 82 in the detection table 1, when the detection cylinder 5 leaves the annular deep groove 6, the leave on-off switch 84 turns on the exhaust fan 83, when the exhaust fan 83 is turned on, air is sucked from the air suction hole 81 on the detection table 1, passes through the ventilation pipe 82 and is then sprayed out from the annular deep groove 6, thereby forming negative pressure at the air suction hole 81 to fix the packaging bag to be packaged thereon, being beneficial to forming fixing effect on the packaging bag transferred by the transfer manipulator, preventing the packaging bag from being separated from the detection platform under the influence of external wind, meanwhile, the air sprayed out of the annular deep groove 6 forms an annular air curtain, the influence of external component force on an air curtain inner packaging bag is weakened, the fixing effect on the packaging bag is further improved, and the stable proceeding of an air tightness detection flow on a production line is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A negative-pressure type airtight detection device for food packaging comprises a detection table (1) and two conveyor belts (2), wherein the two conveyor belts (2) are respectively positioned at two sides of the detection table (1) and are provided with manipulators between the detection table (1), and the rear side of the detection table (1) is provided with an unqualified frame, the airtight detection device is characterized in that a detection mechanism (3) is arranged on the detection table (1), the detection mechanism (3) comprises a telescopic cylinder (4), a detection cylinder (5) and an annular deep groove (6), the telescopic cylinder (4) is arranged right above the detection table (1) through a support, the output end of the telescopic cylinder is coaxially and fixedly connected with the detection cylinder (5), the detection table (1) is provided with the annular deep groove (6), the bottom of the detection cylinder (5) is communicated and is in sealed sliding fit with the annular deep groove (6), and the detection cylinder (5) and the upper surface of the detection table (1) form a detection cavity (7), detect a section of thick bamboo (5) top both sides and install solenoid valve (51) and barometer (52) respectively, solenoid valve (51) intercommunication detects chamber (7) and external world, barometer (52) input and detection chamber (7) intercommunication, the equal electric connection of solenoid valve (51) and barometer (52) has control system (53), place in control system (53) in detecting platform (1) and with two manipulators and telescopic cylinder (4) electric connection.
2. The food package negative-pressure type airtightness detection apparatus according to claim 1, wherein the two manipulators are both of the prior art and are respectively a transfer manipulator and a sorting manipulator, wherein the transfer manipulator transfers the package bag on the conveyor belt (2) to the detection table (1), and the sorting manipulator transfers the package bag on the detection table (1) to the next conveyor belt (2) or delivers the package bag into the unqualified frame.
3. The food package negative pressure type airtightness detection apparatus according to claim 2, wherein the control system (53) receives a movement end signal of the transfer robot and controls the operation states of the telescopic cylinder (4) and the solenoid valve (51), and receives an air pressure signal of the air pressure gauge (52) and controls the movement mode of the sorting robot.
4. The food packaging negative pressure type airtightness detection device according to claim 1, wherein a fixing mechanism (8) is provided in the detection table (1), the fixing mechanism (8) comprises a plurality of air suction holes (81), a ventilation pipe (82), an exhaust fan (83) and an on-off switch (84), the air suction holes (81) are all opened on the detection table (1) and one end of the air suction holes is communicated with the detection chamber (7), the other end of the air suction holes is communicated with the ventilation pipe (82), the exhaust fan (83) is installed in the ventilation pipe (82) and one end of the air suction holes (81) is far away from the communication with the annular deep groove (6), the exhaust fan (83) is electrically connected with the on-off switch (84), and the on-off switch (84) is installed at the inlet of the annular deep groove (6) and is closed or opened along with the detection barrel (5) in and out of the annular deep groove (6).
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CN202011196123.9A CN112326157A (en) | 2020-10-30 | 2020-10-30 | Negative pressure type air tightness detection device for food packaging |
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CN202011196123.9A CN112326157A (en) | 2020-10-30 | 2020-10-30 | Negative pressure type air tightness detection device for food packaging |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113358831A (en) * | 2021-06-03 | 2021-09-07 | 广州市燊华鸣食品有限公司 | Portable intelligent food heavy metal detection system and detection method |
CN113376155A (en) * | 2021-06-03 | 2021-09-10 | 广州市燊华鸣食品有限公司 | Intelligent food detection system and detection method thereof |
CN113682764A (en) * | 2021-07-31 | 2021-11-23 | 上海特丫特智能科技有限公司 | Online vacuum packaging air tightness detection device |
CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
CN113932994A (en) * | 2021-09-22 | 2022-01-14 | 上海瓴爵机电设备有限公司 | Higher engine gas tightness short-term test equipment of accuracy |
WO2023057173A1 (en) * | 2021-10-04 | 2023-04-13 | Inficon Gmbh | Leak detection in a viscous flow |
CN117129147A (en) * | 2023-10-26 | 2023-11-28 | 常州思瑞科信息科技有限公司 | Online leakage detection equipment for liquid bag and ampoule bottle |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113358831A (en) * | 2021-06-03 | 2021-09-07 | 广州市燊华鸣食品有限公司 | Portable intelligent food heavy metal detection system and detection method |
CN113376155A (en) * | 2021-06-03 | 2021-09-10 | 广州市燊华鸣食品有限公司 | Intelligent food detection system and detection method thereof |
CN113376155B (en) * | 2021-06-03 | 2022-12-09 | 深圳凯吉星农产品检测认证有限公司 | Intelligent food detection system and detection method thereof |
CN113682764A (en) * | 2021-07-31 | 2021-11-23 | 上海特丫特智能科技有限公司 | Online vacuum packaging air tightness detection device |
CN113932994A (en) * | 2021-09-22 | 2022-01-14 | 上海瓴爵机电设备有限公司 | Higher engine gas tightness short-term test equipment of accuracy |
CN113932994B (en) * | 2021-09-22 | 2024-04-12 | 上海瓴爵机电设备有限公司 | Engine air tightness rapid detection equipment with higher accuracy |
WO2023057173A1 (en) * | 2021-10-04 | 2023-04-13 | Inficon Gmbh | Leak detection in a viscous flow |
CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
CN113758638B (en) * | 2021-10-12 | 2022-07-29 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
CN117129147A (en) * | 2023-10-26 | 2023-11-28 | 常州思瑞科信息科技有限公司 | Online leakage detection equipment for liquid bag and ampoule bottle |
CN117129147B (en) * | 2023-10-26 | 2024-01-02 | 常州思瑞科信息科技有限公司 | Online leakage detection equipment for liquid bag and ampoule bottle |
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