阅读说明：本技术 用于饮料生产的气密性检测装置 (A gas tightness detection device for beverage production ) 是由 顾斌锋 于 2020-05-17 设计创作，主要内容包括：本发明公开了一种用于饮料生产的气密性检测装置,包括用于对啤酒瓶进行输送的输送线和用于驱动该装置在对啤酒瓶检测时随着啤酒瓶的转动而转动的第一驱动件,还包括多个用于对啤酒瓶进行气密性检测的检测装置、用于控制检测装置进行伸缩运动的电磁组件及用于剔除不合格的啤酒瓶的剔除装置；通过上述结构的设置,使得啤酒瓶可以通过上述各个装置实现主动检测气密性的效果,避免啤酒瓶的漏气而影响对啤酒的灌装和对啤酒的运输,有效的提高了对啤酒气密性检测的效率,同时可以在检测完毕后将不合格的啤酒瓶直接外输,且不影响合格的啤酒瓶的输送,十分的实用。(The invention discloses an air tightness detection device for beverage production, which comprises a conveying line for conveying beer bottles, a first driving piece for driving the device to rotate along with the rotation of the beer bottles during the detection of the beer bottles, a plurality of detection devices for detecting the air tightness of the beer bottles, an electromagnetic assembly for controlling the detection devices to do telescopic motion and a removing device for removing unqualified beer bottles, wherein the first driving piece is used for driving the device to rotate along with the rotation of the beer bottles; through the setting of above-mentioned structure for the beer bottle can realize the effect of initiative detection gas tightness through above-mentioned each device, avoids the gas leakage of beer bottle and influences the filling of beer and to the transportation of beer, the effectual efficiency that has improved the beer gas tightness and detect, can directly export unqualified beer bottle after finishing detecting simultaneously, and does not influence the transport of qualified beer bottle, practicality very.)

1. An air tightness detection device for beverage production comprises a conveying line for conveying beer bottles and a first driving piece (1) for driving the device to rotate along with the rotation of the beer bottles when the beer bottles are detected; the method is characterized in that: still include a plurality of detection device that are used for carrying out the gas tightness to the beer bottle and detect, be used for controlling detection device and carry out concertina movement's electromagnetic component and be used for rejecting unqualified beer bottle's removing devices.

2. A tightness detection device for the production of beverages according to claim 1, characterized in that: the detection device comprises a sealing block (21) for sealing the opening of the beer bottle, an air guide block (22) for inserting the beer bottle to guide air, an air conveying pipeline (23) for conveying air into the beer bottle and an air conveying pipeline (24) for allowing air with certain pressure to leak, wherein a second driving piece (25) for conveying air into the air conveying pipeline (23) is arranged at the air inlet of the air conveying pipeline (23).

3. A tightness detection device for the production of beverages according to claim 1, characterized in that: the electromagnetic assembly comprises a first winding set (31) for controlling the sealing block (21) to seal the beer bottle mouth and a first permanent magnet (32) for driving the sealing block (21) to seal the beer bottle mouth; the first winding set (31) is electrified, the distance between the first permanent magnet (32) and the first winding set (31) is enlarged, and the sealing block (21) seals the opening of the beer bottle.

4. A tightness detection device for the production of beverages according to claim 1, characterized in that: the removing device comprises an arc push plate (41) used for pushing a beer bottle, a moving block (42) used for controlling the arc push plate (41) to stretch and move, a second winding group (43) used for driving the arc push plate (41) to push the beer bottle and a first elastic piece (44) used for driving the moving block (42) to contract and move, and a second permanent magnet (45) matched with the second winding group (43) is arranged on the arc push plate (41).

5. A tightness detection device for the production of beverages according to claim 4, characterized in that: the transfer chain is including being used for carrying qualified beer bottle to assigned position's first conveyer belt (51), be used for carrying unqualified beer bottle to assigned position's second conveyer belt (52) and be used for leading spacing shell (53) to the beer bottle, be equipped with on second conveyer belt (52) and be used for the fixed slot (521) of placing the beer bottle, be equipped with on fixed slot (521) and be used for supplying the removal of beer bottle removal opening (522), be equipped with on spacing shell (53) and be used for supplying flexible groove (531) that arc ejector pad (41) removed.

6. The tightness detection device for the production of beverages according to claim 2, characterized in that: the beer bottle sealing device is characterized in that a second elastic piece (26) used for controlling the sealing block (21) to leave the beer bottle opening, a telescopic barrel (27) used for connecting and supporting the sealing block (21) and a fixed barrel (28) used for telescopic movement of the telescopic barrel (27) are arranged on the sealing block (21), a detection assembly used for detecting the air tightness of a beer bottle is arranged at one end of the air supply pipeline (24), and a control assembly used for controlling the gas flow in the beer bottle is arranged at the other end of the air supply pipeline (24).

7. A tightness detection device for the production of beverages according to claim 6, characterized in that: the detection assembly comprises a control piece (29) for controlling the removing device to remove unqualified beer bottles, a top rod (241) for driving the control piece (29) to open the removing device, a control block (242) for controlling the top rod (241) to move outwards from the air supply pipeline (24), a third elastic piece (243) for controlling the top rod (241) to be retracted into the air supply pipeline (24), and a limiting block (244) for blocking and limiting the top rod (241).

8. A tightness detection device for the production of beverages according to claim 6, characterized in that: the control assembly comprises a control plate (245) used for controlling the gas flow in the beer bottle, a fourth elastic piece (246) used for driving the control plate (245) to control the gas flow, a limiting part (247) used for guiding and limiting the movement of the control plate (245), a vent groove (248) used for allowing gas to flow into the air feed pipeline (24) from the beer bottle, and a supporting block (249) used for connecting and fixing the fourth elastic piece (246).

9. A tightness detection device for the production of beverages according to claim 1, characterized in that: the beer bottle air tightness detection device is characterized in that a first transmission piece (11) used for transmitting the device is arranged on an output shaft of the first transmission piece (1), the first transmission piece (11) is meshed with a second transmission piece (12) and is connected with a driving shaft (13) used for supporting the device in a meshed mode, the second transmission piece (12) is fixedly connected with the driving shaft (13) used for supporting the device in a supporting mode, and a driving disc (14) used for supporting the detection device to conduct air tightness detection on a beer bottle is fixedly arranged on the driving shaft (13).

Technical Field

The invention belongs to the technical field of beer production equipment, and particularly relates to an air tightness detection device for beverage production.

Background

Beer is the oldest alcoholic beverage in humans, and is the third beverage in the world after water and tea consumption; beer is introduced into China in the early twentieth century and belongs to foreign wine seeds, and a product quality online detection device for a beer filling production line is disclosed in a publication with the publication number of CN203464969U, can automatically detect the beer, has high detection speed and low omission factor, can avoid the defects of much interference in a bottle bottom area and complex image background when sediment is directly detected in the bottle bottom area, realizes image analysis clearly and accurately, and improves the detection precision and stability.

However, beer production needs to be filled, and before filling, the air tightness of beer bottles needs to be detected so as to avoid the influence of air leakage of the beer bottles on filling and preservation of beer.

Disclosure of Invention

The invention provides an efficient and reliable air tightness detection device for beverage production, aiming at overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: the air tightness detection device for beverage production comprises a conveying line for conveying beer bottles, a first driving piece, a plurality of detection devices, an electromagnetic assembly and a removing device, wherein the first driving piece is used for driving the device to rotate along with the rotation of the beer bottles when the beer bottles are detected; through the setting of above-mentioned structure for the beer bottle can realize the effect of initiative detection gas tightness through above-mentioned each device, avoids the gas leakage of beer bottle and influences the filling of beer and to the transportation of beer, the effectual efficiency that has improved the beer gas tightness and detect, can directly export unqualified beer bottle after finishing detecting simultaneously, and does not influence the transport of qualified beer bottle, practicality very.

The detection device comprises a sealing block for sealing the opening of the beer bottle, a gas guide block for inserting into the beer bottle to guide gas, a gas transmission pipeline for transmitting gas into the beer bottle and a gas transmission pipeline for allowing gas with certain pressure to leak out, wherein a second driving piece for transmitting gas into the gas transmission pipeline is arranged at the gas inlet of the gas transmission pipeline; through the setting of above-mentioned sealed piece for detection device can carry out effectual sealed processing to the beer bottleneck, guarantees the steady operation that the gas tightness detected, and the setting of gas transmission pipeline and gas supply pipeline, so that carry out the mobile detection of air current in the beer bottle, make the gas flow can realize detecting the gas tightness of beer bottle, avoided harmful substance's use, improved the security, the effectual efficiency that has improved the beer bottle gas tightness and detect.

The electromagnetic assembly comprises a first winding group for sealing the beer bottle mouth by the control sealing block and a first permanent magnet for driving the sealing block to seal the beer bottle mouth; the first winding group is electrified, the distance between the first permanent magnet and the first winding group is enlarged, and the sealing block seals the opening of the beer bottle; through the setting of above-mentioned structure for first wire winding group can be through the control of the cooperation realization with first permanent magnet to sealed piece, so that the sealed piece of drive accomplishes the sealed to the beer bottle, thereby can carry out the gas tightness to the beer bottle and detect, guarantee when carrying out the gas tightness to the beer bottle and detect the reliable and stable nature, improved drive efficiency simultaneously, make the gas tightness of beer bottle detect more accurate high-efficient.

The beer bottle removing device comprises an arc-shaped push plate, a moving block, a second winding group and a first elastic piece, wherein the arc-shaped push plate is used for pushing a beer bottle, the moving block is used for controlling the arc-shaped push plate to stretch and move, the second winding group is used for driving the arc-shaped push block to push the beer bottle, the first elastic piece is used for driving the moving block to contract and move, and a second permanent magnet matched with the second winding group is arranged on the arc-shaped push block; through the setting of above-mentioned arc push pedal for qualified beer bottle can move to appointed delivery track through the arc push pedal on, so that reject unqualified beer bottle and export it outward, and the setting of movable block, second wire winding group and second permanent magnet can control the promotion of arc push pedal to the beer bottle, guarantees to carry out accurate detection to qualified beer bottle, has improved the rejection success rate to the beer bottle.

The conveying line comprises a first conveying belt for conveying qualified beer bottles to a specified position, a second conveying belt for conveying unqualified beer bottles to the specified position and a limiting shell for guiding and limiting the beer bottles, wherein the second conveying belt is provided with a fixing groove for fixedly placing the beer bottles, the fixing groove is provided with a moving opening for moving the beer bottles, and the limiting shell is provided with a telescopic groove for moving the arc-shaped push block; through the setting of above-mentioned structure for the beer bottle can be through first conveyer belt and second conveyer belt, realizes sorting the effect of carrying separately qualified and unqualified beer bottle, so that after the gas tightness detects, can carry unqualified beer bottle to appointed place automatically, the effectual detection efficiency who improves the beer bottle.

The sealing block is provided with a second elastic piece for controlling the sealing block to leave the beer bottle mouth, a telescopic cylinder for connecting and supporting the sealing block and a fixed cylinder for the telescopic cylinder to move in a telescopic way, one end of the air supply pipeline is provided with a detection assembly for detecting the air tightness of the beer bottle, and the other end of the air supply pipeline is provided with a control assembly for controlling the gas flow in the beer bottle; through the setting of above-mentioned second elastic component for sealed piece can realize the effect of leaving the beer bottleneck automatically through the second elastic component after finishing detecting, has avoided the redrive of first wire winding group, has reduced the loss of the energy, has reduced the maintenance cost, and the setting of determine module and control assembly, assurance that can be stable is reliable and stable to the gas tightness detection of beer bottle.

The detection assembly comprises a control piece for controlling the removing device to remove unqualified beer bottles, a top rod for driving the control piece to open the removing device, a control block for controlling the top rod to move outwards from the air supply pipeline, a third elastic piece for controlling the top rod to be withdrawn into the air supply pipeline and a limiting block for limiting the top rod in a blocking way; through the setting of above-mentioned structure for the control can change through the atmospheric pressure in the beer bottle, realizes detecting the gas tightness of beer bottle, so that the motion through the ejector pin embodies the gas tightness to the beer bottle, and can realize the recovery to the ejector pin through third elastic component, so that next detection, effectual improvement to the efficiency that beer bottle gas tightness detected, and guaranteed the precision that detects beer bottle gas tightness.

The control assembly comprises a control plate for controlling the gas flow in the beer bottle, a fourth elastic piece for driving the control plate to control the gas flow, a limiting part for guiding and limiting the movement of the control plate, a vent groove for allowing gas to flow into the gas supply pipeline from the beer bottle and a supporting block for connecting and fixing the fourth elastic piece; through the setting of above-mentioned structure, the control panel can realize the control to the air current through the fourth elastic component, and when atmospheric pressure in the beer bottle reached the certain degree, the control block just can take place to remove for in gas can flow into the air supply pipe, in order to realize the drive to the ejector pin, detect out qualified beer bottle, carry qualified beer bottle to the appointed place, improved the accuracy that the gas tightness of beer bottle detected.

The output shaft of the first driving part is provided with a first driving part for driving the device, the first driving part is meshed with a second driving part, the second driving part is fixedly connected with a driving shaft for supporting the device, and the driving shaft is fixedly provided with a driving disc for supporting the detection device to perform air tightness detection on the beer bottle; through the arrangement of the structure, the first driving piece can be driven by the driving disc through the first driving piece and the second driving piece, the torque is reduced when the first driving piece drives the device, the maintenance cost is reduced, the driving efficiency of the first driving piece is improved, the stable work of the device is guaranteed, and the device is very practical.

The invention has the following advantages: this an airtightness detection device for beverage production passes through the setting of above-mentioned structure, can effectually realize the automatic effect that detects of gas tightness to the beer bottle, the effectual detection efficiency who improves the beer bottle, and can reject unqualified beer bottle automatically after detecting the gas tightness for qualified beer bottle separates with unqualified beer bottle, and the effectual letter sorting efficiency who improves the beer bottle has guaranteed accuracy and the reliable and stable nature that the gas tightness of beer bottle detected.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a first perspective sectional view of fig. 1.

Fig. 3 is a perspective view of a portion a in fig. 2.

Fig. 4 is a perspective view of a portion B in fig. 3.

Fig. 5 is a perspective view of the structure at C in fig. 3.

Fig. 6 is a perspective view of fig. 2 at D.

Fig. 7 is a second perspective sectional view of fig. 1.

Fig. 8 is a perspective view of fig. 7 at E.

Detailed Description

As shown in figures 1-8, an airtightness detection device for beverage production comprises a conveying line for conveying beer bottles, a first driving piece 1 for driving the device to rotate along with the rotation of the beer bottles when the beer bottles are detected, a plurality of detection devices for detecting the airtightness of the beer bottles, an electromagnetic assembly for controlling the detection devices to do telescopic motion, and a rejection device for rejecting unqualified beer bottles, through the arrangement of the structure, the beer bottles can realize the effect of actively detecting the airtightness through the devices, the influence of the air leakage of the beer bottles on the filling of beer and the transportation of beer is avoided, the efficiency of detecting the airtightness of beer is effectively improved, meanwhile, the unqualified beer bottles can be directly exported after the detection is finished, and the conveying of the qualified beer bottles is not influenced, the method is very practical; be equipped with on the output shaft of first driving piece 1 and be used for carrying out driven first driving piece 11 to the device, first driving piece 11 is connected with the meshing of a second driving piece 12, second driving piece 12 and a drive shaft 13 fixed connection who supports the device, set firmly on the drive shaft 13 and be used for supporting detection device and carry out the driving-disc 14 that the gas tightness detected to the beer bottle for first driving piece can realize the drive to the driving-disc through first driving piece and second driving piece, and the moment of torsion when having reduced first driving piece drive the device has reduced the maintenance cost, has improved the drive efficiency of first driving piece, has guaranteed the steady operation of device, and is very practical.

Above-mentioned first driving piece adopts the motor setting, for prior art, no longer give unnecessary details here, above-mentioned first driving piece and second driving medium adopt the gear setting, for prior art, no longer give unnecessary details here, when first driving piece is opened, the first driving piece of first driving piece drive begins to rotate, first driving piece drive second driving medium begins to rotate, the second driving medium drives the drive shaft and begins to take the pictures to rotate, the drive shaft drives the rolling disc and begins to rotate, and the rotation of rolling disc, then can drive detection device and rotate along with the transport of beer bottle, thereby carry out the gas tightness to the beer bottle one by one and detect, be equipped with a plurality of detection device on the rolling disc, just correspond with the beer bottle on the transfer chain.

The detection device comprises a sealing block 21 for sealing the opening of the beer bottle, an air guide block 22 for inserting into the beer bottle for guiding air, an air conveying pipeline 23 for conveying air into the beer bottle and an air conveying pipeline 24 for discharging air with certain pressure, a second driving piece 25 for conveying gas into the gas conveying pipeline 23 is arranged at the gas inlet of the gas conveying pipeline 23, through the arrangement of the sealing block, the detection device can effectively seal the beer bottle mouth, ensure the stable operation of air tightness detection, the arrangement of the gas transmission pipeline and the gas supply pipeline is convenient for the flow detection of the gas flow in the beer bottle, the air tightness detection of the beer bottle can be realized by the flowing of the air, the use of harmful substances is avoided, the safety is improved, and the air tightness detection efficiency of the beer bottle is effectively improved; the side, which is in contact with the beer bottle, of the sealing block is made of rubber materials, which is the prior art and is not described herein any more, and the second driving piece is provided with an air pump, which is the prior art and is not described herein any more; when the sealing block seals the opening of the beer bottle, the air guide block is inserted into the beer bottle, the second driving piece starts to introduce air, the air enters the beer bottle from the air conveying pipeline and accumulates in the beer bottle, and whether the air pressure in the beer bottle can reach a specified value or not is the standard for detecting the air tightness in the beer bottle.

The removing device comprises an arc-shaped push plate 41 used for pushing beer bottles, a moving block 42 used for controlling the arc-shaped push plate 41 to move in a telescopic mode, a second winding group 43 used for driving the arc-shaped push plate 41 to push the beer bottles and a first elastic piece 44 used for driving the moving block 42 to move in a contraction mode, a second permanent magnet 45 matched with the second winding group 43 is arranged on the arc-shaped push plate 41, through the arrangement of the arc-shaped push plate, the qualified beer bottles can move to a specified conveying track through the arc-shaped push plate, unqualified beer bottles can be removed and output conveniently, and due to the arrangement of the moving block, the second winding group and the second permanent magnet, the pushing of the arc-shaped push plate to the beer bottles can be controlled, accurate detection of the qualified beer bottles is guaranteed, and the removing success rate of the beer bottles is improved; the contact surface of the arc-shaped push plate and the beer bottle is made of rubber materials, and the first elastic part, the second elastic part, the third elastic part and the fourth elastic part in the embodiment are all made of spiral springs, so that the prior art is provided and the description is omitted; when the air pressure in the beer bottle reaches a specified value, the ejector rod can push the control piece, so that the control piece controls the second winding group to be electrified, a magnetic field opposite to the second permanent magnet is generated, the second permanent magnet can drive the arc-shaped push to extend out of the beer bottle, the beer bottle is pushed, the qualified beer bottle can be moved to the first conveying belt, and the beer bottle sorting is completed; and promote the back to the beer bottle, receive the effort when first elastic component contracts back, drive the camber ejector pad and return the normal position, prepare next promotion, be equipped with on the spacing shell and carry out the dashpot to the beer bottle that is promoted by the camber ejector pad, be equipped with the rubber cushion in the dashpot, when the beer bottle is promoted to first conveyer belt, just can touch in the dashpot, carry the effectual breakage of avoiding the beer bottle through first conveyer belt after that.

Be equipped with on the sealed piece 21 and be used for controlling sealed piece 21 to leave the second elastic component 26 of beer bottle mouth, be used for carrying out the flexible section of thick bamboo 27 that connects support to sealed piece 21 and in the fixed section of thick bamboo 28 that supplies flexible section of thick bamboo 27 to stretch out and draw back the removal, the one end of air supply pipeline 24 is equipped with the detection subassembly that is used for detecting the gas tightness of beer bottle, the other end of air supply pipeline 24 is equipped with the control assembly that is used for controlling the gas flow in the beer bottle, through the setting of above-mentioned second elastic component for sealed piece is detecting the back that finishes, can realize the effect of leaving the beer bottle mouth automatically through the second elastic component, has avoided the redriving of first wire winding group, has reduced the loss of energy, has reduced maintenance cost, and detection subassembly and control assembly's setting, and the assurance that can be stable to the gas tightness detection of beer bottle the electromagnetic component is including being used for controlling sealed piece 21 to carry out the first wire winding group 31 of confined beer bottle A first permanent magnet 32 of the port; first wire winding group 31 circular telegram, interval between first permanent magnet 32 and the first wire winding group 31 enlarges, sealed piece 21 seals the beer bottleneck, through the setting of above-mentioned structure for first wire winding group can be through the control to sealed piece with the cooperation realization of first permanent magnet, so that the sealed piece of drive accomplishes the sealed to the beer bottle, thereby can carry out the gas tightness to the beer bottle and detect, guarantee to carry out the gas tightness to the beer bottle and detect the reliable and stable nature of time measuring, improved drive efficiency simultaneously, make the gas tightness of beer bottle detect more accurate high-efficient.

When the beer bottle is positioned below the air guide block, the first winding group starts to be electrified, so that a magnetic field opposite to the first permanent magnet is generated, the first permanent magnet is repelled by the magnetic field, the sealing block is driven to move downwards, the air guide block enters the beer bottle, the sealing block stably props against the mouth of the beer bottle to form a sealing effect, and at the moment, the second elastic piece stretches, and the telescopic cylinder moves downwards in the fixed cylinder; after the air tightness detection is finished, the first winding set is powered off, the resilience force of the second elastic piece drives the sealing block to move upwards so as to be separated from the beer bottle, unqualified beer bottles can be removed conveniently, energy consumption can be saved, the flexibility of the sealing block when the sealing block is abutted against the beer bottle can be increased, and the beer bottle is prevented from being easily lost; after the sealing block is separated from the beer bottles, the arc-shaped push block can push qualified beer bottles to enter the first conveying belt to finish conveying.

The detection assembly comprises a control part 29 for controlling the rejection device to reject unqualified beer bottles, an ejector rod 241 for driving the control part 29 to open the rejection device, a control block 242 for controlling the ejector rod 241 to move outwards from the air supply pipeline 24, a third elastic part 243 for controlling the ejector rod 241 to be retracted into the air supply pipeline 24 and a limit block 244 for limiting the ejector rod 241 in a blocking manner, and through the arrangement of the structure, the control part can realize air tightness detection on the beer bottles through air pressure change in the beer bottles, so that air tightness of the beer bottles is reflected through movement of the ejector rod, and the ejector rod can be retracted through the third elastic part, so that next detection is facilitated, the air tightness detection efficiency of the beer bottles is effectively improved, and the air tightness detection accuracy of the beer bottles is guaranteed; the control piece is arranged by adopting a microswitch, which is the prior art and is not described herein any more, and the control piece is arranged by adopting a piston, which is the prior art and is not described herein any more; when the beer bottle is not damaged, gas can be filled into the gas supply pipeline, the control block is pushed to move, the control block moves to drive the ejector rod to extend out of the gas supply pipeline, the third elastic piece stretches until the ejector rod reaches the control piece, the control piece is pushed to start the removing device, the sealing block can leave the beer bottle opening firstly, then the removing device can control the arc-shaped pushing block to push the qualified beer bottle into the first conveying belt, the unqualified beer bottle cannot push the control piece, and the unqualified beer bottle can be conveyed to a specified position along the second conveying belt after the sealing block is separated.

The control assembly comprises a control plate 245 for controlling the gas flow in the beer bottle, a fourth elastic member 246 for driving the control plate 245 to control the gas flow, a limiting part 247 for guiding and limiting the movement of the control plate 245, a vent groove 248 for supplying gas from the beer bottle to the air supply pipeline 24 and a supporting block 249 for connecting and fixing the fourth elastic member 246, through the arrangement of the structure, the control plate can realize the control of the air flow through the fourth elastic member, when the air pressure in the beer bottle reaches a certain degree, the control block can move, so that the gas can flow into the air supply pipeline to realize the driving of the ejector rod, the qualified beer bottle is detected, the qualified beer bottle is conveyed to a designated place, and the accuracy of the air tightness detection of the beer bottle is improved; when the sealing block is sealed with the beer bottle, the second driving piece can introduce gas into the beer bottle through the gas transmission pipeline, so that the gas is filled in the beer bottle, if the beer bottle is damaged, the gas can leak out, the gas pressure in the beer bottle cannot reach a specified value, and the control plate cannot be jacked; if the beer bottle is intact, the gas can reach a specified value gradually in the beer bottle, the gas can push the control panel, so that the control panel moves upwards until the gas enters the gas supply pipeline from the vent groove, the ejector rod pushes the control piece, and the second driving piece stops conveying the gas, so that the beer bottle is qualified.

The conveying line comprises a first conveying belt 51 used for conveying qualified beer to a specified position, a second conveying belt 52 used for conveying unqualified beer bottles to the specified position and a limiting shell 53 used for guiding and limiting the beer bottles, a fixing groove 521 used for fixedly placing the beer bottles is arranged on the second conveying belt 52, a moving opening 522 used for moving the beer bottles is arranged on the fixing groove 521, a telescopic groove 531 used for moving the arc-shaped push block 41 is arranged on the limiting shell 53, and through the arrangement of the structure, the beer bottles can pass through the first conveying belt and the second conveying belt, so that the qualified and unqualified beer bottles can be sorted and conveyed respectively, the unqualified beer bottles can be conveyed to the specified place automatically after air tightness detection, and the detection efficiency of the beer bottles is improved effectively; the below of second conveyer belt is located to above-mentioned first conveyer belt, stretches out from the expansion tank when the arc ejector pad, when promoting qualified beer bottle, the beer bottle can be along removing the opening, falls on first conveyer belt, collides the dashpot in, then carries to the assigned position through first conveyer belt, and unqualified beer bottle then can carry to the assigned position along the second conveyer belt.