Mineral water bottle air leakage detection device

Abstract

The invention discloses an air leakage detection device for mineral water bottles. The air leakage detection device comprises a turntable testing mechanism, a conveying belt and a plurality of stations, the turntable testing mechanism intermittently rotates, and is divided into a sealing station, a pressurizing station, a detecting station and an unlocking station; the conveying belt conveys mineral water bottles to the rotating disc, the bottle clamping device clamps the bottles, the sealing clamping jaw seals bottle openings, and the pressure sensor monitors pressure changes in real time to judge the air leakage condition. After the unlocking device unseals, qualified products and unqualified products are conveyed respectively; according to the device, all the components work cooperatively, and efficient and accurate detection of the mineral water bottles is achieved; the device is high in adaptability, can detect mineral water bottles of different specifications, effectively solves the problems in the prior art, improves the detection efficiency and quality, and reduces the cost.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral water production, and particularly to a leak detection device for mineral water bottles. Background Art

[0002] In the past, the sealing detection of mineral water bottles mainly relied on the manual extrusion observation method. During the detection, each bottle was operated one by one, resulting in low efficiency and difficulty in meeting the requirements of large-scale production.

[0003] The clamping devices of existing automatic detection mechanisms often adopt a fixed-size design, which is difficult to adapt to different specifications of bottle mouths, resulting in poor sealing or damage caused by excessive extrusion of the bottle body. In addition, the detection results rely on manual observation of the inflation degree of the airbag or the reading of the pressure gauge, with strong subjectivity and insufficient accuracy, and are prone to misjudgment due to visual errors or operation differences. Although some automated devices have tried to improve, they have problems such as complex structure, high cost, or poor compatibility. Therefore, there is an urgent need for a leak detection device that is efficient, accurate, and highly adaptable to meet the needs of industrial detection. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and propose a leak detection device for mineral water bottles to solve the problems raised in the background art.

[0005] To achieve the above technical objectives, the technical solution of the present invention provides a leak detection device for mineral water bottles, including: a turntable testing mechanism and a conveyor belt. There are two conveyor belts respectively facing the inlet and outlet of the turntable testing mechanism. The turntable testing mechanism includes a frame, on which a cam divider driven by a motor is arranged. A positioning disk is arranged on the rotating shaft of the cam divider. A clamping frame is arranged on the upper surface of the positioning disk, and a plurality of bottle clamping devices are arranged on the lower surface. A pressure sensor is arranged on the bottle clamping device. A plurality of positioning grooves are arranged in a circumferential array on the outer side of the positioning disk, and the bottle clamping device is arranged below the positioning groove. A support ring coaxial with the positioning disk is arranged on the top of the clamping frame. A sealing jaw facing the positioning groove is arranged on the lower surface of the support ring, and a jaw cylinder for driving the sealing jaw is arranged on the upper surface.

[0006] Furthermore, the bottle clamping device includes two mirror-symmetrically arranged support plates and clamping plates. A transmission mechanism is fixedly connected between the two support plates through a support column. A driving gear and a locking mechanism connected to the transmission mechanism are arranged below the support plate. A clamping groove cooperating with the locking mechanism is arranged on the wheel shaft of the driving gear. An unlocking mechanism cooperating with the locking mechanism is arranged on the frame. The clamping plate is slidably connected to the side of the support plate. The pressure sensor is arranged on the adjacent surface of the two clamping plates. An arc-shaped rack meshing with the driving gear is arranged on the frame, and the driving gear drives the two clamping plates to approach each other through the transmission mechanism.

[0007] Furthermore, the locking mechanism includes a locking bracket fixedly arranged on the support plate. A locking seat is arranged on the locking bracket. A locking tongue along the radial direction of the driving gear is slidably arranged on the locking seat. A locking spring is arranged on the locking tongue. The locking spring keeps the locking tongue close to the wheel axle of the driving gear. An unlocking rod penetrating through the locking bracket is arranged below the locking seat. An inclined chute is arranged on the locking tongue. A push rod is arranged in the inclined chute. The unlocking rod is connected with the push rod. When the unlocking rod ascends, the locking tongue is driven by the push rod to move away from the wheel axle of the driving gear.

[0008] Furthermore, the transmission mechanism includes transmission gears respectively meshed with one ends of two clamping plates. A first intermediate gear and a second intermediate gear which are meshed with each other are arranged between the two transmission gears. The second intermediate gear is coaxially connected with the driving gear. The first intermediate gear is the same as the transmission gear. The first intermediate gear and the second intermediate gear are respectively meshed with the two transmission gears.

[0009] Furthermore, the sealing clamping jaw includes a telescopic rod and a clamping jaw seat. A plurality of clamping jaws are circumferentially arranged on the clamping jaw seat. The middle part of the clamping jaw is rotatably connected with the clamping jaw seat. A snap ring is arranged at the lower end. The upper end of the telescopic rod is connected with the piston rod of the clamping jaw cylinder. The lower end is hinged with the upper end of the clamping jaw. A sealing seat is arranged below the clamping jaw seat.

[0010] Furthermore, the sealing clamping jaw includes an outer cylinder fixedly connected with the support ring. A telescopic rod coaxial with the outer cylinder is arranged in the outer cylinder. The upper end of the telescopic rod is connected with the piston rod of the clamping jaw cylinder. The lower end freely slides in the clamping jaw seat. A plurality of clamping jaws are circumferentially arranged on the clamping jaw seat. The middle part of the clamping jaw is rotatably connected with the clamping jaw seat. A snap ring is arranged at the lower end. A sealing seat is arranged below the clamping jaw seat, and a buffer spring is arranged above it. Two ends of the buffer spring are respectively connected with the telescopic rod and the clamping jaw seat. A sliding sleeve is arranged on the telescopic rod. A conical push block is arranged at the lower end of the sliding sleeve. A limiting ring is arranged on the part of the sliding sleeve located in the outer cylinder. A plug is arranged at the bottom of the outer cylinder. A roller matched with the conical surface of the conical push block is arranged at the upper end of the clamping jaw.

[0011] Furthermore, the unlocking mechanism includes an unlocking cylinder and an unlocking column arranged in sequence along the rotation direction of the positioning disk, and the two are respectively opposite to two adjacent positioning grooves. A wedge block is arranged at the top of the unlocking column.

[0012] Furthermore, a guide rod is arranged between the two clamping plates. Two ends of the guide rod respectively penetrate through the two clamping plates and freely slide on them. A return spring is arranged on the guide rod between the two clamping plates. Two ends of the return spring respectively abut against the two clamping plates and are kept in a compressed state.

[0013] Compared with the prior art, the beneficial effects of the present invention include:

[0014] Through the coordinated cooperation of the turntable testing mechanism and the conveyor belt, the present invention realizes continuous and efficient detection of mineral water bottles; the intermittent rotation of the turntable testing mechanism enables precise operations such as sealing, pressurizing, detecting, and unlocking at each station, greatly improving the detection efficiency; the bottle clamping device and the sealing jaws can precisely clamp the mineral water bottle and effectively seal the bottle mouth, and cooperate with the pressure sensor to monitor the pressure change in real time, accurately judge the air leakage situation, and have high detection accuracy; compared with the previous manual detection, it effectively avoids human errors and improves the accuracy and stability of detection; compared with the existing automatic detection mechanism, it has stronger adaptability, can meet the detection requirements of different specifications of mineral water bottles, solves the problems of low detection efficiency and insufficient accuracy in the prior art, and meets the detection requirements of industrial large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a device for detecting air leakage of mineral water bottles provided by the present invention;

[0016] Figure 2 is a schematic diagram of the turntable testing mechanism of a device for detecting air leakage of mineral water bottles provided by the present invention;

[0017] Figure 3 is an exploded view of the bottle clamping device of a device for detecting air leakage of mineral water bottles provided by the present invention;

[0018] Figure 4 is a partial cross-sectional view of the bottle clamping device of a device for detecting air leakage of mineral water bottles provided by the present invention;

[0019] Figure 5 is an exploded view of the sealing jaws of a device for detecting air leakage of mineral water bottles provided by the present invention; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Referring to Figure 1 , the present invention provides a device for detecting air leakage of mineral water bottles, including a turntable testing mechanism and a conveyor belt 2. There are two conveyor belts 2, which are respectively opposite to the inlet and outlet of the turntable testing mechanism, and are used to transport the mineral water bottles 3 to be detected to the turntable testing mechanism for detection and output the detected mineral water bottles from the turntable testing mechanism.

[0022] Referring to Figure 2, the turntable test mechanism includes a frame 1, on which a cam divider 101 driven by a motor is provided. A positioning disk 4 is installed on the rotating shaft of the cam divider 101. The positioning disk 4 makes intermittent rotations under the drive of the cam divider 101, rotating one station each time, so as to detect the mineral water bottles on the positioning disk 4 one by one.

[0023] A clamping frame 5 is arranged on the upper surface of the positioning disk 4, and a number of bottle clamping devices 6 are arranged on the lower surface. A pressure sensor 605 is arranged on the bottle clamping device 6. A number of positioning grooves 401 are arranged in a circumferential array on the outer side of the positioning disk 4. The bottle clamping device 6 is arranged below the positioning groove 401 to accurately position the mineral water bottle. A support ring 501 coaxial with the positioning disk 4 is arranged at the top of the clamping frame 5. A sealing clamping jaw 8 opposite to the positioning groove 401 is arranged on the lower surface of the support ring 501, and a clamping jaw cylinder 7 for driving the sealing clamping jaw 8 is arranged on the upper surface.

[0024] When the mineral water bottle 3 is positioned in the positioning groove 401 during operation, the clamping jaw cylinder 7 drives the sealing clamping jaw 8 to move downward to clamp and seal the mouth of the mineral water bottle 3 for air leakage detection. Subsequently, the bottle clamping device 6 tightens and squeezes the outer wall of the mineral water bottle 3 to increase its internal pressure, and the pressure sensor 605 on the bottle clamping device 6 monitors the pressure change between the bottle clamping device 6 and the mineral water bottle 3, so as to judge whether the mineral water bottle 3 leaks air.

[0025] Refer to Figure 3 , the bottle clamping device 6 includes two mirror-image arranged support plates 601 and clamping plates 603. The two support plates 601 are fixedly connected by a support column 602. The clamping plate 603 is slidably connected to the side of the support plate 601. The pressure sensor 605 is arranged on the adjacent surface of the two clamping plates 603. A transmission gear 613 meshing with one end of each of the two clamping plates 603 is arranged between the two support plates 601. A first intermediate gear 614 and a second intermediate gear 615 meshing with each other are arranged between the two transmission gears 613. The first intermediate gear 614 and the second intermediate gear 615 are respectively meshed with the two transmission gears 613, and the first intermediate gear 614 is the same as the transmission gear 613.

[0026] A driving gear 604 is arranged below the support plate 601. The second intermediate gear 615 is coaxially connected to the driving gear 604. An arc-shaped rack 104 meshing with the driving gear 604 is arranged on the frame 1. When the positioning disc 4 rotates, the driving gear 604 meshes with the arc-shaped rack 104 to drive the two clamping plates 603 to approach each other and clamp the mineral water bottle. To realize the reset of the two clamping plates 603, a guide rod 616 is arranged between the two clamping plates 603. Both ends of the guide rod 616 penetrate through the two clamping plates 603 and slide freely thereon. A return spring 617 is arranged on the guide rod 616 between the two clamping plates 603. Both ends of the return spring 617 are abutted against the clamping plate 603 and kept in a compressed state.

[0027] To maintain the clamping state of the two clamping plates 603, a locking bracket 606 is arranged on the support plate 601 at the lower part. A locking seat 607 is arranged on the locking bracket 606. A locking tongue 609 along the radial direction of the driving gear 604 is slidably arranged on the locking seat 607. A locking spring 610 is arranged on the locking tongue 609. The locking spring 610 makes the locking tongue 609 keep approaching the axle of the driving gear 604. When the driving gear 604 rotates to a specified position, the locking tongue 609 is inserted into a card slot (not shown in the figure) on the axle of the driving gear 604 under the action of the locking spring 610 to lock the driving gear 604 and prevent the clamping plate 603 from loosening.

[0028] Refer to Figure 2 、 Figure 4 Below the locking seat 607, an unlocking rod 608 penetrating through the locking bracket 606 is arranged. An inclined chute 611 is arranged on the locking tongue 609. A push rod 612 is arranged in the inclined chute 611. The unlocking rod 608 is connected to the push rod 612. An unlocking cylinder 103 and an unlocking column 102 are sequentially arranged on the frame 1 along the rotation direction of the positioning disc 4, and the two are respectively opposite to two adjacent positioning grooves 401. A wedge block 105 is arranged at the top of the unlocking column 102. When the positioning disc 4 rotates to a specified position and if the mineral water bottle 3 leaks air, the piston rod of the unlocking cylinder 103 extends to push the unlocking rod 608 to rise and release the locking of the driving gear 604. If the mineral water bottle 3 is qualified, it continues to rotate to the next working station, and the wedge block 105 at the top of the unlocking column 102 is used to push the unlocking rod 608 to realize unlocking.

[0029] Refer to Figure 5, the sealing jaw 8 includes an outer cylinder 801 fixedly connected to the support ring 501. An expansion rod 802 coaxial with the outer cylinder 801 is arranged inside the outer cylinder 801; the upper end of the expansion rod 802 is connected to the piston rod of the jaw cylinder 7, and the lower end is kept sliding freely within the jaw seat 803. A number of jaws 804 are circumferentially arrayed on the jaw seat 803. The middle part of the jaw 804 is rotatably connected to the jaw seat 803, and a snap ring 805 is arranged at the lower end; a sealing seat 806 is arranged below the jaw seat 803, and a buffer spring 809 is arranged above. The two ends of the buffer spring 809 are respectively connected to the expansion rod 802 and the jaw seat 803. A sliding sleeve 807 is fixedly arranged on the expansion rod 802. A conical push block 808 is arranged at the lower end of the sliding sleeve 807. A limiting ring 811 is arranged on the part of the sliding sleeve 807 located inside the outer cylinder 801, and a plug 812 is arranged at the bottom of the outer cylinder 801.

[0030] A roller 810 that matches the conical surface of the conical push block 808 is arranged at the upper end of the jaw 804. When the jaw cylinder 7 drives the expansion rod 802 to move downward, the sealing seat 806 seals the bottle mouth. When the expansion rod 802 continues to move downward, the conical push block 808 contacts the roller 810, pushing the upper end of the jaw 804 to open outward. At the same time, the buffer spring 809 is compressed, and the snap ring 805 clamps and fixes the bottle neck part (below the threaded section) of the mineral water bottle 3 to maintain a good sealing effect.

[0031] For the convenience of understanding the present invention, the following is combined with Figure 1 - Figure 5 to explain the working principle of this solution in detail:

[0032] The conveyor belt 2 conveys the mineral water bottles to be detected to the feeding port of the turntable testing mechanism. After the mineral water bottle 3 enters the positioning groove 401, the sealing jaw 8 descends to seal the bottle mouth of the mineral water bottle. As the positioning disk 4 rotates, the bottle clamping device 6 tightens and squeezes the outer wall of the mineral water bottle 3 to increase its internal pressure. During the detection process, the pressure sensor 605 monitors the pressure of the clamping plate 603 on the mineral water bottle in real time to determine whether there is air leakage. When the positioning disk 4 rotates to the unlocking cylinder 103 station, if the mineral water bottle 3 leaks air, the piston rod of the unlocking cylinder 103 extends, pushing the unlocking rod 608 to rise, releasing the lock on the driving gear 604, and the unqualified products fall into the recycling mechanism; if the mineral water bottle 3 is qualified, it continues to rotate to the next station, and the wedge block 105 at the top of the unlocking column 102 pushes the unlocking rod 608 to achieve unlocking; finally, the conveyor belt 2 conveys the qualified mineral water bottles 3 out from the discharging port of the turntable testing mechanism. Through the rotation of the turntable testing mechanism, the whole device realizes continuous and efficient detection of multiple mineral water bottles, effectively solving the problems of low efficiency of previous manual detection, poor adaptability and insufficient precision of existing automatic detection mechanisms, and meeting the industrial detection requirements.

[0033] The specific embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An air leakage detection device for mineral water bottles, comprising a turntable testing mechanism and a conveyor belt. There are two conveyor belts respectively facing the inlet and outlet of the turntable testing mechanism. It is characterized in that: The turntable testing mechanism includes a frame, on which a cam divider driven by a motor is arranged. A positioning disk is arranged on the rotating shaft of the cam divider. A clamping frame is arranged on the upper surface of the positioning disk, and a plurality of bottle clamping devices are arranged on the lower surface. A pressure sensor is arranged on the bottle clamping device. A plurality of positioning grooves are arranged in a circumferential array on the outer side of the positioning disk. The bottle clamping device is arranged below the positioning groove. A support ring coaxial with the positioning disk is arranged at the top of the clamping frame. A sealing clamping jaw facing the positioning groove is arranged on the lower surface of the support ring, and a clamping jaw cylinder for driving the sealing clamping jaw is arranged on the upper surface.

2. The air leakage detection device for a mineral water bottle according to claim 1, wherein: The bottle clamping device includes two mirror-image arranged support plates and clamping plates. A transmission mechanism is fixedly connected between the two support plates through a support column. A driving gear and a locking mechanism connected to the transmission mechanism are arranged below the support plate. A clamping groove matched with the locking mechanism is arranged on the wheel shaft of the driving gear. An unlocking mechanism matched with the locking mechanism is arranged on the frame. The clamping plate is slidably connected to the side edge of the support plate. The pressure sensor is arranged on one adjacent surface of the two clamping plates. An arc-shaped rack meshed with the driving gear is arranged on the frame. The driving gear drives the two clamping plates to approach each other through the transmission mechanism.

3. The air leakage detection device for a mineral water bottle according to claim 2, characterized in that: The locking mechanism includes a locking bracket fixedly arranged on the support plate. A locking seat is arranged on the locking bracket. A locking tongue along the radial direction of the driving gear is slidably arranged on the locking seat. A locking spring is arranged on the locking tongue. The locking spring keeps the locking tongue close to the wheel shaft of the driving gear. An unlocking rod penetrating through the locking bracket is arranged below the locking seat. An inclined chute is arranged on the locking tongue, and a push rod is arranged in the inclined chute. The unlocking rod is connected with the push rod. When the unlocking rod rises, the locking tongue is driven to move away from the wheel shaft of the driving gear through the push rod.

4. A mineral water bottle air leakage detection device according to claim 2 or 3, characterized in that: The transmission mechanism includes transmission gears respectively meshed with one end of the two clamping plates. A first intermediate gear and a second intermediate gear which are meshed with each other are arranged between the two transmission gears. The second intermediate gear is coaxially connected with the driving gear. The first intermediate gear is the same as the transmission gear. The first intermediate gear and the second intermediate gear are respectively meshed with the two transmission gears.

5. A mineral water bottle air leakage detection device according to claim 4, characterized in that: The sealing clamping jaw includes a telescopic rod and a clamping jaw seat. A plurality of clamping jaws are arranged in a circumferential array on the clamping jaw seat. The middle part of the clamping jaw is rotatably connected with the clamping jaw seat, and a clamping ring is arranged at the lower end. The upper end of the telescopic rod is connected with the piston rod of the clamping jaw cylinder, and the lower end is hinged with the upper end of the clamping jaw. A sealing seat is arranged below the clamping jaw seat.

6. The air leakage detection device for mineral water bottles according to claim 4, wherein: The sealing jaw includes an outer cylinder fixedly connected to the support ring. An expansion rod coaxial with the outer cylinder is arranged inside the outer cylinder. The upper end of the expansion rod is connected to the piston rod of the jaw cylinder, and the lower end is kept sliding freely within the jaw seat. A number of jaws are circumferentially arrayed on the jaw seat. The middle part of the jaw is rotatably connected to the jaw seat, and a snap ring is arranged at the lower end. A sealing seat is arranged below the jaw seat, and a buffer spring is arranged above. Two ends of the buffer spring are respectively connected to the expansion rod and the jaw seat. A sliding sleeve is arranged on the expansion rod, and a conical push block is arranged at the lower end of the sliding sleeve. A limiting ring is arranged on the part of the sliding sleeve located inside the outer cylinder. A plug is arranged at the bottom of the outer cylinder. A roller that matches the conical surface of the conical push block is arranged at the upper end of the jaw.

7. A mineral water bottle air leakage detection device according to claim 5 or 6, characterized in that: The unlocking mechanism includes an unlocking cylinder and an unlocking column arranged in sequence along the rotation direction of the positioning disc, and the two are respectively opposite to two adjacent positioning grooves. A wedge block is arranged at the top of the unlocking column.

8. An air leakage detection device for mineral water bottles according to claim 7, characterized in that: A guide rod is arranged between the two clamping plates. Two ends of the guide rod respectively penetrate through the two clamping plates and slide freely thereon. A return spring is arranged on the guide rod between the two clamping plates. Two ends of the return spring respectively abut against the two clamping plates and remain in a compressed state.

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