A sealing detection device for bottled blueberry sampling inspection

Abstract

This invention relates to the field of bottled food testing technology, specifically to a sealing testing device for random inspection of bottled blueberries. The device includes an outer frame and an inner frame. A protective cover is fixedly connected to the top of the outer frame, and an extension frame and a vacuum pump are fixedly connected to the top of the inner frame. A neck tube is fixedly connected to the inner side of the extension frame, and a testing disc is installed on the inner side of the neck tube. A bottle holder is provided on the top of the testing disc. The testing disc includes a clamping tube, and a silicone sleeve is clamped to the inner side of the clamping tube. This invention provides a sealing testing device for random inspection of bottled blueberries, which avoids damage and contamination to qualified bottles caused by puncture or soaking operations, eliminates the need for drainage and drying processes, improves testing efficiency, adapts to multiple bottle sizes through silicone sleeve deformation, and ensures testing accuracy through impurity purging. Overall, it achieves non-destructive, efficient, and accurate sealing testing of bottled blueberries, and is suitable for batch sampling inspection.

Description

Technical Field

[0001] This invention relates to the field of bottled food testing technology, specifically to a sealing testing device for random sampling of bottled blueberries. Background Technology

[0002] As we all know, blueberries are rich in antioxidants such as anthocyanins and vitamin C. However, when exposed to oxygen, these components will oxidize, causing the fruit to darken in color, lose nutrients, and taste worse. Nitrogen filling is a necessary preservation method for long-term transportation and storage, which can significantly reduce the risk of spoilage. In addition, the airtightness of the bottle is usually tested after nitrogen filling to prevent the contents from leaking out or the external air from leaking out, which would cause the blueberries stored inside to oxidize and spoil.

[0003] The problem with existing technologies is that most of the existing methods for testing the sealing of bottled food are underwater bubbling, pressure drop or helium mass spectrometry leak detection, but most of them require puncturing, heating or soaking the bottle, which can easily lead to bottle contamination or difficulty in cleaning and recycling. Moreover, if the popular underwater detection method is used, the drainage and drying processes will also affect the detection efficiency.

[0004] Based on the problems mentioned above, we found that existing sealing testing equipment has difficulty avoiding these problems simultaneously. Therefore, we propose a sealing testing device for random inspection of bottled blueberries that is highly adaptable, has high testing efficiency, and will not damage or contaminate well-sealed bottled products. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a sealing detection device for random inspection of bottled blueberries, which has the advantages of strong adaptability, high detection efficiency, and no damage or contamination to well-sealed bottled products.

[0007] (II) Technical Solution

[0008] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a sealing detection device for random inspection of bottled blueberries, comprising an outer frame and an inner frame, wherein a protective cover is fixedly connected to the top of the outer frame, an extension frame and a vacuum pump are fixedly connected to the top of the inner frame, a neck tube is fixedly connected to the inner side of the extension frame, a detection plate is installed on the inner side of the neck tube, and a bottle rack is provided on the top of the detection plate;

[0009] The detection plate includes a clamping tube, a silicone soft sleeve is clamped to the inner side of the clamping tube, a base plate is provided on the inner side of the silicone soft sleeve, a limiting plate is provided on the outer side of the silicone soft sleeve, and a pulling frame is fixedly connected to the top of the limiting plate. The inner side of the pulling frame is fixedly connected to the top of the silicone soft sleeve.

[0010] The bottom of the clamp tube is fixedly connected to the neck tube, a pressure sensor and a pressure holding valve are installed on the inner side of the neck tube, and the bottom of the neck tube is fixedly connected to the input end of the vacuum pump.

[0011] Using the above technical solution, an external frame and an internal frame are used to install the detection structure and the product bottle fixing structure, respectively. An extension frame is used to install and support the neck tube. A bottle rack facilitates the fixing and movement of the product bottle. In use, the bottle body is clamped by the bottle rack with the bottle mouth facing downwards, and it is driven to move to the top of the detection plate, and then pressed down vertically. Because the pulling frame of the detection plate pulls the top part of the silicone sleeve, its top opening is relatively large. The bottle cap and part of the bottle body continue to fall along the silicone sleeve. The part not pulled by the pulling frame is interference-fitted with the bottle body and deforms and is stretched open when the bottle body passes through until the bottom of the bottle cap contacts the bottom plate. The bottom plate and the silicone sleeve at the bottom of the bottom plate are attached to the top of the limiting plate. At this time, the structure is in a stable state. Then, the vacuum pump is started to evacuate the inside of the silicone sleeve through the neck tube, so that air is drawn between the inside of the silicone sleeve and the bottle body and bottle cap. A stable negative pressure environment is established, and then the pressure-holding valve is closed to maintain the seal inside the silicone sleeve. Pressure changes inside the sleeve are recorded by a pressure sensor. If the pressure is stable and remains constant during the pressure-holding period, there is no leakage at the cap-bottle joint. If the pressure increases during the pressure-holding period, there is leakage at the cap-bottle joint, and gas or liquid inside the bottle flows into the sleeve through the gaps, causing pressure changes. This method quickly tests the sealing performance of bottled blueberries without causing puncture damage or contamination to bottles with good sealing properties. Since there is no contact with liquid throughout the process, there is no need for surface cleaning or drying. After testing, gas is directly pumped in using a vacuum pump to maintain normal pressure between the silicone sleeve and the bottle. The bottle rack then re-exports the bottle for subsequent sampling inspection, eliminating the need for draining processes. Furthermore, because the silicone sleeve allows for a certain degree of deformation, and the bottle rack can clamp and fix bottles of different sizes, it is suitable for most bottled blueberry products.

[0012] The present invention is further configured such that: the bottle rack includes a sub-support and three sets of base blocks, the inner side of the sub-support is rotatably connected to three sets of inner pull rods and three sets of outer pull rods, and the inner side of the three sets of base blocks is rotatably connected to the three inner pull rods respectively.

[0013] By adopting the above technical solution, a sub-support is set up in conjunction with three sets of inner pull rods, three sets of outer pull rods, and a base block. Each inner pull rod, outer pull rod, and base block forms a stable clamping structure. When the three sets of inner pull rods and outer pull rods rotate along the sub-support, the base blocks connected to them will move closer to each other to clamp and fix the bottle body inside.

[0014] The invention is further configured such that: the inner sides of the three sets of base blocks are respectively rotatably connected to three external pull rods, the bottom of the base blocks are fixedly connected to rubber claws, and the middle of the inner side of the bracket is fixedly connected to an electric cylinder.

[0015] By adopting the above technical solution, an electric cylinder is set to drive the clamping structure for fixation. The rubber grippers have high friction, making it difficult for the clamped bottle to slip off. At the same time, they have a certain deformation performance, so they are not likely to damage the bottle.

[0016] The present invention is further configured such that: a pressure claw is fixedly connected to the fixed end of the electric cylinder, a control frame is fixedly connected to the telescopic end of the electric cylinder, a transmission groove is provided on the inner side of the control frame, and the inner side of the transmission groove is rotatably connected to the top of the outer pull rod.

[0017] By adopting the above technical solution, a control frame is set up. During use, the electric cylinder pushes the control frame, and the top of the control frame is fixed, so the entire sub-support falls. During the falling process, the outer pull rod slides along the transmission groove and rotates along the sub-support at the same time. The inner pull rod is passively rotated along the sub-support under force. The rubber claws connected to the bottom block move closer to each other to clamp and fix the contacting bottle. By setting up pressure claws, the bottle body can be pressed down. When it contacts the detection plate for detection, the continuously pressing bottle frame may shift along the bottle body after the bottle body contacts the bottom plate until the pressure claws firmly press against the bottle body, making it less likely to shift or loosen, so as to facilitate the detection action.

[0018] The present invention is further configured such that: a linear guide rail is fixedly connected to the top of the inner side of the protective cover, a slider is movably connected to the outer side of the linear guide rail, a connecting bracket is fixedly connected to the bottom of the slider, a transmission frame is slidably connected to the inner side of the connecting bracket, and the bottom of the transmission frame and the top of the control frame are fixedly connected.

[0019] By adopting the above technical solution, by setting a linear guide rail in conjunction with a slider, it is easy to drive the connecting bracket to move horizontally along the slider. The connecting bracket and control frame inside the slider are fixed, so the movement of the slider can drive the entire bottle rack to move, so as to move it to the product bottle sample for clamping or remove it from the structure after testing.

[0020] The present invention is further configured such that: a servo motor is fixedly connected to the top of the inner side of the connecting bracket, a lead screw is fixedly connected to the telescopic end of the servo motor, the bottom of the lead screw is rotatably connected to the bottom of the connecting bracket, and the outer side of the lead screw is threadedly connected to the transmission frame.

[0021] By adopting the above technical solution, a servo motor is set to control the forward or reverse rotation of the lead screw, so as to drive the transmission frame connected to it to rise and fall vertically along the connecting bracket. The purpose is to control the lifting and lowering of the bottle rack to facilitate the actions of clamping, pressing down during inspection, and taking it out after inspection.

[0022] The present invention is further configured such that: a pin is provided on the outer side of the card tube, and the side of the pin near the card tube penetrates the card tube and the silicone soft sleeve.

[0023] By adopting the above technical solution, pins are used to fix the tube and the silicone sleeve, so as to prevent the silicone sleeve from loosening after continuous pressure or long-term use.

[0024] The present invention is further configured such that: a plurality of airflow grooves are provided on the inner side of the substrate, and a sub-frame is fixedly connected to the outer side of the pulling frame, and the bottom of the sub-frame is fixedly connected to the outer frame.

[0025] By adopting the above technical solution, when a negative pressure needs to be extracted from the inside of the silicone sleeve, the gas between the silicone sleeve, the bottle body, and the bottle cap will be extracted from the airflow channel by setting an airflow channel.

[0026] The present invention is further configured such that: a purge frame is fixedly connected to the inner side of the outer frame, a blower is fixedly connected to the inner side of the purge frame, and a purge pipe is fixedly connected to the output end of the blower.

[0027] By adopting the above technical solution, the product bottle can be purged before testing by setting up a purging frame in conjunction with a blower and a purging pipe, so that the surface is free of impurities and the protruding impurities can prevent gaps from forming between the bottle body and the silicone sleeve.

[0028] The present invention is further configured such that: the purge pipe is fixedly connected to the inner side of the top of the purge frame, and a branch pipe is fixedly connected to the inner side of the purge pipe.

[0029] By adopting the above technical solution, the purge pipe can be fixedly installed by setting the purge pipe inside the purge frame, and the branch pipe is used to guide the airflow, so as to make its purge effect better.

[0030] (III) Beneficial Effects

[0031] Compared with the prior art, the present invention provides a sealing detection device for random inspection of bottled blueberries, which has the following beneficial effects:

[0032] This sealing inspection device for bottled blueberries uses an external frame and an internal frame to install the inspection structure and the bottle fixing structure, respectively. An extension frame is used to install and support the neck tube. A bottle rack facilitates the fixing and movement of the product bottles. During use, the bottle body is clamped by the bottle rack with the bottle opening facing downwards, and the bottle is driven to the top of the inspection plate. Then, it is pressed vertically downwards. Because the pulling frame of the inspection plate pulls the top part of the silicone sleeve, its top opening is relatively large. The bottle cap and part of the bottle body continue to fall along the silicone sleeve. The part not pulled by the pulling frame is interference-fitted with the bottle body and deforms and is stretched open as the bottle body passes through until the bottom of the bottle cap contacts the bottom plate. The bottom plate and the silicone sleeve at the bottom of the bottom plate adhere to the top of the limiting plate. At this point, the structure is in a stable state. Then, the vacuum pump is activated, and air is evacuated from inside the silicone sleeve through the neck tube, causing the inside of the silicone sleeve and the bottle body to contact the bottle cap. A stable negative pressure environment is formed between the silicone sleeve and the bottle body. The pressure holding valve is then closed to keep the inside of the silicone sleeve sealed. Pressure changes inside the sleeve are recorded by a pressure sensor. If the pressure is stable and remains unchanged during the pressure holding period, there is no leakage at the joint between the bottle cap and the bottle body. If the pressure increases during the pressure holding period, there is a leak at the joint between the bottle cap and the bottle body. Gas or liquid inside the bottle flows into the sleeve through the gap, causing pressure changes. This method can quickly detect the sealing performance of bottled blueberries. At the same time, it will not cause puncture damage or contamination to bottles with good sealing performance. Since there is no contact with liquid throughout the process, there is no need to wipe or dry the surface. After the test is completed, gas is directly blown in by a vacuum pump to maintain normal pressure between the silicone sleeve and the bottle body. The bottle rack then transports the bottle back out of the structure for subsequent sampling inspection, eliminating the need for drainage and other processes. In addition, since the silicone sleeve allows a certain degree of deformation and the bottle rack can clamp and fix bottles of different sizes, it is suitable for most bottled blueberry products. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure in this invention;

[0034] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0035] Figure 3 This is a schematic diagram showing the location of the vacuum pump in this invention;

[0036] Figure 4 This is a schematic diagram of the neck tube connection in this invention;

[0037] Figure 5 This is a schematic diagram of the connecting bracket in this invention;

[0038] Figure 6 This is a schematic diagram of the internal structure of the detection disk in this invention;

[0039] Figure 7 This is a schematic diagram of the connection of the purging frame in this invention.

[0040] In the diagram: 1. Outer frame; 2. Inner frame; 3. Protective cover; 4. Extension frame; 5. Vacuum pump; 6. Neck tube; 7. Detection plate; 71. Pipe clamp; 72. Silicone soft sleeve; 73. Limiting plate; 74. Pulling frame; 75. Base plate; 8. Bottle rack; 81. Dividing bracket; 82. Inner pull rod; 83. Outer pull rod; 84. Base block; 85. Rubber gripper; 86. Electric cylinder; 87. Pressure gripper; 88. Control frame; 9. Pressure sensor; 10. Pressure holding valve; 11. Linear guide rail; 12. Slider; 13. Connecting bracket; 14. Transmission frame; 15. Servo motor; 16. Lead screw; 17. Pin; 18. Airflow groove; 19. Sub-frame; 20. Blowing frame; 21. Fan; 22. Blowing pipe. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] Please see Figures 1-7 A sealing inspection device for random inspection of bottled blueberries includes an outer frame 1 and an inner frame 2. A protective cover 3 is fixedly connected to the top of the outer frame 1. An extension frame 4 and a vacuum pump 5 are fixedly connected to the top of the inner frame 2. A neck tube 6 is fixedly connected to the inner side of the extension frame 4. A detection plate 7 is installed on the inner side of the neck tube 6. A bottle rack 8 is provided on the top of the detection plate 7.

[0044] The detection plate 7 includes a clamping tube 71, a silicone soft sleeve 72 is clamped to the inside of the clamping tube 71, a base plate 75 is provided on the inside of the silicone soft sleeve 72, a limiting plate 73 is provided on the outside of the silicone soft sleeve 72, and a pulling frame 74 is fixedly connected to the top of the limiting plate 73. The inside of the pulling frame 74 is fixedly connected to the top of the silicone soft sleeve 72.

[0045] The bottom of the clamp tube 71 is fixedly connected to the neck tube 6. A pressure sensor 9 and a pressure holding valve 10 are installed on the inner side of the neck tube 6. The bottom of the neck tube 6 is fixedly connected to the input end of the vacuum pump 5.

[0046] The outer frame 1 and inner frame 2 are used to install the detection structure and the product bottle fixing structure, respectively. An extension frame 4 is used to install and support the neck tube 6. A bottle holder 8 facilitates the fixing and movement of the product bottle. During use, the bottle holder 8 clamps the bottle body with the bottle mouth facing downwards and drives it to the top of the detection plate 7, then presses it down vertically. Because the pull frame 74 of the detection plate 7 pulls the top part of the silicone sleeve 72, ... Its top opening is relatively large. The bottle cap and part of the bottle body continue to fall along the silicone sleeve 72. The part not pulled by the puller 74 is interference-fitted with the bottle body. As the bottle body passes through, it deforms and is stretched open until the bottom of the bottle cap contacts the bottom plate 75. The bottom plate 75 and the silicone sleeve 72 at the bottom of the bottom plate 75 are attached to the top of the limiting plate 73. At this time, the structure is in a stable state. Then, the vacuum pump 5 is started, and air is evacuated from inside the silicone sleeve 72 through the neck tube 6, so that the inside of the silicone sleeve 72 and the bottle body are aligned. A stable negative pressure environment is formed between the caps. Then, the pressure holding valve 10 is closed to keep the inside of the silicone sleeve 72 sealed. The pressure sensor 9 records the pressure change inside the sleeve. If the pressure is stable and the pressure inside the sleeve remains unchanged during the pressure holding period, there is no leakage at the joint between the cap and the bottle body. If the pressure increases during the pressure holding period, there is leakage at the joint between the cap and the bottle body. Gas or liquid inside the bottle flows into the sleeve through the gap, causing pressure changes, which can quickly detect the sealing performance of bottled blueberries. At the same time, it will not cause puncture damage or contamination to bottles with good sealing performance. Since there is no contact with liquid throughout the process, there is no need to wipe or dry the surface. After the test is completed, gas is directly blown in by the vacuum pump 5 to maintain normal pressure between the silicone sleeve 72 and the bottle body. The bottle rack 8 then transports the bottle back out of the structure for subsequent sampling inspection, eliminating the need for drainage and other processes. At the same time, since the silicone sleeve 72 allows a certain degree of deformation, and the bottle rack 8 can clamp and fix product bottles of different sizes, it is suitable for most bottled blueberry products.

[0047] The clamping tube 71 has a pin 17 on its outer side. The side of the pin 17 near the clamping tube 71 passes through the clamping tube 71 and the silicone sleeve 72. The pin 17 is used to fix the clamping tube 71 and the silicone sleeve 72, preventing the silicone sleeve 72 from loosening after continuous pressure or long-term use. The inner side of the base film 75 has several airflow grooves 18. The outer side of the pulling frame 74 is fixedly connected to the sub-frame 19. The bottom of the sub-frame 19 is fixedly connected to the outer frame 1. By setting the airflow grooves 18, when it is necessary to extract negative pressure inside the silicone sleeve 72, the gas between the silicone sleeve 72, the bottle body, and the bottle cap will be extracted from the airflow grooves 18. The inner side of the outer frame 1... A purge frame 20 is fixedly connected to the side, and a blower 21 is fixedly connected to the inner side of the purge frame 20. A purge pipe 22 is fixedly connected to the output end of the blower 21. By setting the purge frame 20 in conjunction with the blower 21 and the purge pipe 22, the product bottle can be purged before testing to remove impurities from its surface and prevent impurities from causing gaps between the bottle body and the silicone sleeve 72. The purge pipe 22 is fixedly connected to the inner side of the top of the purge frame 20, and a branch pipe is fixedly connected to the inner side of the purge pipe 22. By setting the purge pipe 22 to be located inside the purge frame 20, the purge pipe 22 can be fixedly installed. The branch pipe is used to guide the airflow to improve the purge effect.

[0048] Working principle of this embodiment: Before testing, the purge rack 20 on the inner side of the outer frame 1 is activated. The airflow generated by the blower 21 blows the surface of the bottled blueberries through the purge pipe 22 and branch pipe to remove impurities and avoid subsequent sealing gaps. Then, the bottle rack 8 clamps the bottle body and moves the bottle body with the bottle mouth facing down to the top of the detection plate 7 and gradually presses it down. When the bottle body enters the silicone soft sleeve 72 of the detection plate 7, the top is opened by the pull frame 74 to facilitate insertion. The lower silicone soft sleeve 72 is tightly fitted with the bottle body to form a seal. The pin 17 fixes the clamping tube 71 and the silicone soft sleeve 72 to prevent loosening. The process continues until the bottom of the bottle cap contacts the base plate 75 and adheres to the limiting plate 73. Then, the vacuum pump 5 is activated, and air is drawn into the silicone sleeve 72 through the neck tube 6 and the airflow groove 18 of the base plate 75 to create a negative pressure environment. After the pressure holding valve 10 is closed, the pressure sensor 9 monitors the internal pressure change. If the pressure is stable, the seal is good; if the pressure rises, there is a leak. After the test is completed, the vacuum pump 5 blows in gas to restore normal pressure, and the bottle holder 8 lifts the bottle and moves it out of the test area. After the bottle is released, the equipment resets and waits for the next round of testing. The entire process achieves non-destructive, efficient, and adaptable sealing testing of blueberries in multi-size bottles.

[0049] Example 2

[0050] refer to Figures 1-6A sealing inspection device for random inspection of bottled blueberries also includes a bottle rack 8, wherein the bottle rack 8 includes a sub-support 81 and three sets of base blocks 84. The inner side of the sub-support 81 is rotatably connected to three sets of inner pull rods 82 and three sets of outer pull rods 83. The inner sides of the three sets of base blocks 84 are respectively rotatably connected to the three inner pull rods 82. By setting the sub-support 81 in conjunction with the three sets of inner pull rods 82, the three sets of outer pull rods 83, and the base blocks 84, each inner pull rod 82, outer pull rod 83, and base block 84 forms a stable clamping structure. When the inner pull rod 82 and outer pull rod 83 rotate along the sub-support 81, the base blocks 84 connected to them will move closer to each other to clamp and fix the bottle inside. The inner sides of the three sets of base blocks 84 are respectively rotatably connected to the three outer pull rods 83. Rubber claws 85 are fixedly connected to the bottom of the base blocks 84. An electric cylinder 86 is fixedly connected to the middle of the inner side of the sub-support 81. The electric cylinder 86 is used to drive the clamping structure for fixation. The rubber claws 85 have high friction, making it difficult for the clamped bottle to slip. The cylinder 86 is designed to detach the bottle while also exhibiting a certain degree of deformation resistance, making it less likely to damage the bottle. A pressure claw 87 is fixedly connected to the fixed end of the electric cylinder 86, and a control frame 88 is fixedly connected to the telescopic end of the electric cylinder 86. A transmission groove is formed on the inner side of the control frame 88, and the inner side of the transmission groove is rotatably connected to the top of the outer pull rod 83. By setting up the control frame 88, the electric cylinder 86 pushes the control frame 88 during use, and the top of the control frame 88 is fixed, thus causing the entire support bracket 81 to fall. During the falling process, the outer pull rod 83 slides along the transmission groove. Simultaneously, the inner pull rod 82 rotates along the sub-support 81 under force, and the rubber grippers 85 connected to the bottom block 84 move closer to each other to clamp and fix the contacting bottle. By setting the pressure claw 87, the bottle body can be pressed. When it contacts the detection plate 7 for detection, the continuously pressing bottle holder 8 may shift along the bottle body after the bottle body contacts the bottom plate 75 until the pressure claw 87 firmly presses against the bottle body, making it less likely to shift or loosen, so as to facilitate the detection action.

[0051] The top of the inner side of the protective cover 3 is fixedly connected to a linear guide rail 11, and a slider 12 is movably connected to the outer side of the linear guide rail 11. A connecting bracket 13 is fixedly connected to the bottom of the slider 12, and a transmission frame 14 is slidably connected to the inner side of the connecting bracket 13. The bottom of the transmission frame 14 is fixedly connected to the top of the control frame 88. By setting the linear guide rail 11 in conjunction with the slider 12, the connecting bracket 13 can be easily driven to move horizontally along the slider 12. The connecting bracket 13 and the control frame 88 are fixed to the inner side of the slider 12. Therefore, the movement of the slider 12 can drive the entire bottle rack 8 to move, so as to move it to the product bottle. After the sample is clamped or tested, it is removed from the structure. A servo motor 15 is fixedly connected to the top of the inner side of the connecting bracket 13. A lead screw 16 is fixedly connected to the telescopic end of the servo motor 15. The bottom of the lead screw 16 is rotatably connected to the bottom of the connecting bracket 13. The outer side of the lead screw 16 is threadedly connected to the transmission frame 14. By setting the servo motor 15, the lead screw 16 is controlled to rotate forward or backward, so as to drive the transmission frame 14, which is threadedly connected to it, to vertically lift and lower along the connecting bracket 13. The purpose is to control the lifting and lowering of the bottle rack 8 so as to facilitate the actions of clamping, pressing down during testing, and taking it out after testing.

[0052] The working principle of this embodiment is as follows: The bottle rack 8 is driven by the electric cylinder 86 to drive the control frame 88, which in turn drives the three sets of inner pull rods 82 and outer pull rods 83 to rotate along the sub-support 81, so that the rubber grippers 85 at the bottom of the base block 84 come closer to each other, realizing flexible clamping of blueberries in bottles of different sizes. The pressure claw 87 presses down to press against the bottle body during detection to prevent displacement. The linear guide rail 11 cooperates with the slider 12 to drive the connecting bracket 13 and the bottle rack 8 to move horizontally to the bottle to be inspected or to move out of the detection area. The servo motor 15 drives the lead screw 16 to control the transmission frame 14 to lift and lower, realizing the vertical movement of the bottle rack 8, completing the action cycle of clamping, pressing down for detection and removal. The whole process realizes non-destructive and precise positioning and transfer of bottled blueberries through mechanical linkage.

[0053] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. Those skilled in the art can make modifications to this embodiment without contributing any inventive step after reading this specification. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing inspection device for random inspection of bottled blueberries, comprising an outer frame (1) and an inner frame (2), characterized in that: The top of the outer frame (1) is fixedly connected to a protective cover (3), the top of the inner frame (2) is fixedly connected to an extension frame (4) and a vacuum pump (5), the inner side of the extension frame (4) is fixedly connected to a neck tube (6), the inner side of the neck tube (6) is equipped with a detection plate (7), and the top of the detection plate (7) is provided with a bottle rack (8) for fixing and moving product bottles. The detection plate (7) includes a clamping tube (71), a silicone soft sleeve (72) is clamped to the inner side of the clamping tube (71), a base plate (75) is provided on the inner side of the silicone soft sleeve, a limiting plate (73) is provided on the outer side of the silicone soft sleeve (72), and a pulling frame (74) is fixedly connected to the top of the limiting plate (73). The inner side of the pulling frame (74) is fixedly connected to the top of the silicone soft sleeve (72). The bottom of the clamp tube (71) is fixedly connected to the neck tube (6), and a pressure sensor (9) and a pressure holding valve (10) are installed on the inner side of the neck tube (6). The bottom of the neck tube (6) is fixedly connected to the input end of the vacuum pump (5). In use, the bottle body of the product bottle is held by the bottle holder (8) with the bottle mouth facing down, and the product bottle is driven to move to the top of the detection plate (7) and then pressed down vertically. Since the pulling frame (74) of the detection plate (7) pulls the top part of the silicone soft sleeve (72), the top opening of the silicone soft sleeve (72) is large. The bottle cap and part of the bottle body continue to fall along the silicone soft sleeve (72). The part of the silicone soft sleeve (72) that is not pulled by the pulling frame (74) is interference-fitted with the bottle body. When the bottle body passes through, it deforms and is stretched open until the bottom of the bottle cap contacts the bottom plate (75). The bottom plate (75) and the silicone soft sleeve (72) at the bottom of the bottom plate (75) are attached to the top of the limiting plate (73). At this time, the structure is in a stable state.

2. The sealing detection device for random inspection of bottled blueberries according to claim 1, characterized in that: The bottle rack (8) includes a sub-support (81) and three sets of base blocks (84). The inner side of the sub-support (81) is rotatably connected to three sets of inner pull rods (82) and three sets of outer pull rods (83). The inner side of the three sets of base blocks (84) is rotatably connected to the three inner pull rods (82) respectively.

3. The sealing detection device for random inspection of bottled blueberries according to claim 2, characterized in that: The inner sides of the three sets of base blocks (84) are rotatably connected to three external pull rods (83), and the bottom of the base block (84) is fixedly connected to a rubber gripper (85). The middle of the inner side of the sub-bracket (81) is fixedly connected to an electric cylinder (86).

4. The sealing detection device for random inspection of bottled blueberries according to claim 3, characterized in that: The electric cylinder (86) has a pressure claw (87) fixedly connected to its fixed end, and a control frame (88) fixedly connected to its telescopic end. The control frame (88) has a transmission groove on its inner side, and the inner side of the transmission groove is rotatably connected to the top of the outer pull rod (83).

5. A sealing detection device for random inspection of bottled blueberries according to claim 4, characterized in that: A linear guide rail (11) is fixedly connected to the top of the inner side of the protective cover (3). A slider (12) is movably connected to the outer side of the linear guide rail (11). A connecting bracket (13) is fixedly connected to the bottom of the slider (12). A transmission frame (14) is slidably connected to the inner side of the connecting bracket (13). The bottom of the transmission frame (14) is fixedly connected to the top of the control frame (88).

6. A sealing detection device for random inspection of bottled blueberries according to claim 5, characterized in that: A servo motor (15) is fixedly connected to the top of the inner side of the connecting bracket (13). A lead screw (16) is fixedly connected to the telescopic end of the servo motor (15). The bottom of the lead screw (16) is rotatably connected to the bottom of the connecting bracket (13). The outer side of the lead screw (16) is threadedly connected to the transmission frame (14).

7. The sealing detection device for random inspection of bottled blueberries according to claim 1, characterized in that: The outer side of the card tube (71) is provided with a pin (17), and the side of the pin (17) near the card tube (71) passes through the card tube (71) and the silicone soft sleeve (72).

8. A sealing detection device for random inspection of bottled blueberries according to claim 1, characterized in that: The inner side of the substrate (75) is provided with several airflow grooves (18), and the outer side of the pulling frame (74) is fixedly connected with a sub-frame (19). The bottom of the sub-frame (19) is fixedly connected to the outer frame (1).

9. A sealing detection device for random inspection of bottled blueberries according to claim 1, characterized in that: A purge frame (20) is fixedly connected to the inner side of the outer frame (1), a blower (21) is fixedly connected to the inner side of the purge frame (20), and a purge pipe (22) is fixedly connected to the output end of the blower (21).

10. A sealing detection device for random inspection of bottled blueberries according to claim 9, characterized in that: The purge pipe (22) is fixedly connected to the inner side of the top of the purge frame (20), and a branch pipe is fixedly connected to the inner side of the purge pipe (22).

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