Bagged vacuum food air tightness automatic detection device

Abstract

The bagged vacuum food air tightness automatic detection device is applied to the technical field of food package sealing detection, the fixed sliding rail and the movable sliding rail are arranged, the adjusting piece is arranged on the movable sliding rail, the distance between the fixed sliding rail and the movable sliding rail can be adjusted, and the detection accuracy is improved. The detection parts are arranged on the fixed sliding rail and the movable sliding rail, the bagged vacuum food is adsorbed and fixed between the detection parts and then pulled towards the two sides for detection, and the bagged vacuum food is driven to move through the fixed sliding rail and the movable sliding rail, so that the practicability of the device is improved. According to the bagged vacuum food detection device, automatic detection and sorting of air leakage products are achieved in the moving process, the replacement part is arranged in the middle of the detection part, if the main suction cup covers the damaged place, the damaged bagged vacuum food cannot be detected out, the adsorption position can be changed through the replacement part, detection is conducted again, and detection is more comprehensive and accurate.

Description

Technical Field

[0001] This application relates to the technical field of food packaging seal detection, and particularly relates to an automatic detection device for the airtightness of bagged vacuum food. Background Art

[0002] Food vacuum packaging removes the air inside the package to create an oxygen-free environment, thereby inhibiting the growth and reproduction of microorganisms, achieving the effect of extending the shelf life of food, and can also effectively maintain the original flavor and nutrition of food, avoiding the decline in food quality caused by oxidation. At the same time, vacuum packaging can also reduce the volume of packaged food and can form the desired shape, facilitating storage and transportation.

[0003] After bagged food is vacuumized, during the processing process, the seal often fails due to loose sealing or bump scratches. Therefore, it is necessary to sort out these bagged foods that have lost vacuum to prevent unqualified products from entering the market. In the prior art, the airtightness detection of vacuum food mostly uses the water bath method or manual visual inspection. Such inspections all rely on the human eye for observation and then sorting, with low sorting efficiency and strong subjectivity. Only bagged foods with relatively serious air leakage and obvious bulges can be sorted out. However, some vacuum packages only have slight and fine holes and cracks, and the air leakage of such packages is not obvious. Therefore, it is difficult to observe through the water bath method and manual visual inspection method, resulting in the leakage sorting of bagged foods with air leakage, and unqualified products entering the market, which will have an adverse impact on food safety and brand reputation.

[0004] For this reason, we propose an automatic detection device for the airtightness of bagged vacuum food to solve the above problems. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of this application is to be able to identify slightly damaged vacuum bagged foods that are difficult to observe with the naked eye and achieve automatic sorting, improving the detection accuracy and sorting efficiency. Compared with the prior art, an automatic detection device for the airtightness of bagged vacuum food is provided.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions.

[0007] An automatic detection device for the airtightness of bagged vacuum food, including a workbench, a support frame fixedly installed on the workbench, a fixed slide rail fixedly installed on the support frame, a moving slide rail is also provided above the workbench, a plurality of sliders are slidably connected to both the fixed slide rail and the moving slide rail, a detection member is arranged on the slider, and the detection member includes a bracket, an installation box, a main moving block, a main suction cup, a first spring, a first electromagnet, a first permanent magnet, and a distance sensor;

[0008] The bracket is fixedly connected to the slider, the mounting box is fixedly connected to the top of the bracket, the main moving block is slidably connected to the mounting box, a plurality of main suction cups are provided and evenly mounted on the surface of the main moving block, the first spring and the first telescopic rod are fixedly connected between the main moving block and the mounting box, and the first spring is sleeved outside the first telescopic rod. The first electromagnet is fixedly installed on the mounting box, the first permanent magnet is fixedly installed on the main moving block, and the distance sensor is fixedly installed on the main moving block.

[0009] Further, a replacement part is provided in the middle of the detection part. The replacement part includes a secondary moving block, secondary suction cups, a second spring, a second telescopic rod, a second electromagnet, and a second permanent magnet.

[0010] The secondary moving block is slidably connected to the main moving block. A plurality of secondary suction cups are provided and evenly mounted on the surface of the secondary moving block. The second spring and the second telescopic rod are fixedly connected between the secondary moving block and the mounting box, and the second spring is sleeved outside the second telescopic rod. The second electromagnet is fixedly installed on the mounting box, and the second permanent magnet is fixedly installed on the secondary moving block.

[0011] Further, ventilation hoses are provided on both the main moving block and the secondary moving block. The ventilation hoses on the main moving block and the secondary moving block are respectively communicated with the main suction cups and the secondary suction cups. The other ends of the ventilation hoses penetrate through the mounting box and are connected to a micro air pump. The micro air pump is fixedly installed on the bracket.

[0012] Further, the plurality of sliders are evenly distributed. The detection parts on the fixed slide rail and the moving slide rail are arranged opposite to each other and correspond one by one. The fixed slide rail and the moving slide rail have the same height and are parallel to each other.

[0013] Further, an adjusting part is provided on the workbench. The adjusting part includes a mounting frame, a support rod, a threaded rod, a threaded hole, a mounting table, and a motor.

[0014] The mounting frame is fixedly connected to the workbench. A plurality of mounting frames are provided and every two of them form a group. The support rod is fixedly connected between the mounting frames. The support rod penetrates through the moving slide rail and is slidably connected to the moving slide rail. The threaded rod is rotatably connected between one group of mounting frames. The threaded hole is opened in the middle of the moving slide rail. The threaded rod is threadedly connected to the threaded hole. The mounting table is fixedly connected to one of the mounting frames connected to the threaded rod. The motor is fixedly installed on the mounting table. One end of the threaded rod penetrates through the mounting frame and is fixedly connected to the output shaft of the motor.

[0015] Further, two chutes are fixedly connected to the upper surface of the workbench. A waste collection box and a product collection box are respectively slidably connected to the two chutes. Handles are fixedly connected to both the waste collection box and the product collection box.

[0016] Further, displacement sensors are installed on the sides of the fixed slide rail and the movable slide rail that are close to each other, and the displacement sensors are located above the waste collection box.

[0017] Further, an angle sensor is provided on the top of the installation box, and the angle sensor, the distance sensor, and the displacement sensor are all connected to the first electromagnet, the second electromagnet, and the micro air pump through a controller.

[0018] Compared with the prior art, the advantages of the present application are as follows:

[0019] (1) By providing a detection member, during feeding, the first electromagnet is energized to attract the first permanent magnet, driving the main moving blocks and the main suction cups on both sides to move to both sides. Then, the vacuum-packed food to be detected is placed between the main suction cups. Next, the micro air pump is started to make the main suction cups generate suction force. The magnetic property of the first electromagnet changes to repel the first permanent magnet, thereby driving the main moving blocks and the main suction cups on both sides to move closer to the vacuum-packed food in the middle and adsorbing on both sides of the vacuum-packed food. Then, the magnetic property of the first electromagnet is changed again to attract the first permanent magnet, driving the main moving blocks and the main suction cups on both sides to move to both sides, so that the main suction cups drive the adsorbed vacuum-packed food packaging bag to be pulled to both sides. If the packaged food has air leakage, then the main suction cups will drive the packaging bag to move to both sides. If the packaging bag is intact, then the main suction cups cannot drive the packaging bag to move to both sides, thereby realizing the air leakage detection of the vacuum-packed food. Moreover, even if the vacuum-packed food only has a slight breakage, the main suction cups can still drive the packaging bag to move to both sides, so that the slightly damaged vacuum-packed food can be detected, making the detection more accurate.

[0020] (2) By providing a replacement member, if the main suction cups cover the damaged area, then the damaged vacuum-packed food cannot be detected. Therefore, when the main suction cups adsorb the packaging bag and pull it, and the detection distance sensor detects that the distance has not changed significantly, the detected signal will be transmitted to the processor and the second electromagnet will be controlled to be energized to repel the second permanent magnet, driving the auxiliary suction cups to adsorb on both sides of the packaging bag. Then, the first electromagnet is controlled to be powered off, and under the action of the first spring, the main suction cups are driven to reset and leave the packaging bag, so that the position adsorbed by the main suction cups is exposed. Then, the magnetic property of the first electromagnet changes to attract the first permanent magnet, so that the auxiliary suction cups drive the adsorbed vacuum-packed food packaging bag to be pulled to both sides, and the air leakage detection is carried out again, thereby realizing comprehensive detection, being able to avoid misjudgment, and making the detection more accurate.

[0021] (3) By setting a displacement sensor on the side where the fixed slide rail and the movable slide rail are close to each other, and placing it above the waste collection box. When the vacuum food packaging bag is damaged, since the pulling and moving of the packaging bag to both sides will drive the main moving block and the auxiliary moving block to move together, the positions of the main moving block and the auxiliary moving block will change. When the displacement sensor detects a change in the position of the main moving block, it will transmit the detected signal to the processor and control the electromagnet one, electromagnet two, and the micro air pump to disconnect through the controller, so that the damaged vacuum-packed food falls into the waste collection box, realizing automatic sorting.

[0022] (4) By setting an angle sensor on the top of the installation box. When the angle sensor detects that it rotates to the horizontal position above the product collection box, it will transmit the detected signal to the processor and control the electromagnet one, electromagnet two, and the micro air pump to disconnect through the controller, so that the qualified bagged food automatically falls into the product collection box. When the angle sensor rotates to the horizontal state on the other side, at this time the detection part is at the feeding position, and at this time the angle sensor will transmit the detected signal to the processor and control the electromagnet one and the micro air pump to work through the controller, adsorbing and detecting the bagged vacuum food.

[0023] (5) By setting an adjusting part, the distance between the movable slide rail and the fixed slide rail can be adjusted. Start the motor to drive the threaded rod to rotate, and drive the movable slide rail to move under the limiting action of the support rod, adjusting the distance between the movable slide rail and the fixed slide rail, so as to be able to adapt to vacuum-packed foods of different thicknesses and sizes, making the device more practical. Brief Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the present application;

[0025] Figure 2 is the structural schematic diagram of the fixed slide rail, movable slide rail and adjusting part of the present application;

[0026] Figure 3 is the structural schematic diagram of the detection part and replacement part of the present application;

[0027] Figure 4 is the partial cross-section of the detection part and replacement part of the present application Figure 1 ;

[0028] Figure 5 is the partial cross-section of the detection part and replacement part of the present application Figure 2 ;

[0029] Figure 6 is the present application Figure 1 The partial enlarged view of the structure at A in the figure.

[0030] Description of the reference numerals in the drawings:

[0031] 1. Workbench; 2. Support frame; 3. Fixed slide rail; 4. Movable slide rail; 5. Slide block; 6. Detection part; 601. Bracket; 602. Installation box; 603. Main moving block; 604. Main suction cup; 605. First spring; 606. First telescopic rod; 607. First electromagnet; 608. First permanent magnet; 609. Distance sensor; 7. Replacement part; 701. Sub-moving block; 702. Sub-suction cup; 703. Second spring; 704. Second telescopic rod; 705. Second electromagnet; 706. Second permanent magnet; 8. Ventilation hose; 9. Adjusting part; 901. Installation frame; 902. Support rod; 903. Threaded rod; 904. Threaded hole; 905. Installation table; 906. Motor; 10. Chute; 11. Waste collection box; 12. Product collection box; 13. Handle; 14. Displacement sensor; 15. Angle sensor; 16. Micro air pump. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Embodiment 1:

[0034] The present invention provides an automatic airtightness detection device for bagged vacuum food. Please refer to Figures 1-6, including a workbench 1, a support frame 2 is fixedly installed on the workbench 1, a fixed slide rail 3 is fixedly installed on the support frame 2, and a movable slide rail 4 is also arranged above the workbench 1 (the fixed slide rail 3 and the movable slide rail 4 are both electric slide rails, which is a prior art and will not be elaborated on here), and a plurality of sliders 5 are slidably connected to the fixed slide rail 3 and the movable slide rail 4, and the fixed slide rail 3 and the movable slide rail 4 can drive the slider 5 to make a circular motion, so that the new bagged vacuum food to be tested can be continuously placed between the detection parts 6 for testing, so that the detection is faster and more efficient, and the slider 5 is provided with a detection part 6, which absorbs and fixes the bagged vacuum food in the middle and then pulls it to both sides for testing, and drives the bagged vacuum food to move through the fixed slide rail 3 and the movable slide rail 4, so that the automatic sorting of the leaking product is realized during the movement. The detection member 6 includes a bracket 601, an installation box 602, a main moving block 603, a main suction cup 604, a spring 605, an electromagnet 607, a permanent magnet 608 and a distance sensor 609; the bracket 601 is fixedly connected to the slider 5, the installation box 602 is fixedly connected to the top of the bracket 601, the main moving block 603 is slidably connected to the installation box 602, the main suction cup 604 is provided with multiple and evenly installed on the surface of the main moving block 603, a spring 605 and a telescopic rod 606 are fixedly connected between the main moving block 603 and the installation box 602, and the spring 605 is sleeved on the outside of the telescopic rod 606, the electromagnet 607 is fixedly installed on the installation box 602, the permanent magnet 608 is fixedly installed on the main moving block 603, and the distance sensor 609 is fixedly installed on the main moving block 603.

[0035] During feeding, the electromagnet 607 is energized to attract the permanent magnet 608, driving the main moving blocks 603 and the main suction cup 604 on both sides to move to both sides, and then the vacuum bagged food to be tested is placed between the main suction cups 604, and then the micro air pump 16 is started to make the main suction cup 604 generate suction, and the magnetic change of the electromagnet 607 repels the permanent magnet 608, thereby driving the main moving blocks 603 and the main suction cup 604 on both sides to approach the vacuum bagged food in the middle and adsorb on both sides of the vacuum bagged food, and then the magnetic change of the electromagnet 607 again attracts the permanent magnet 608, driving the main moving blocks 603 and the main suction cup 604 on both sides to move to the vacuum bagged food in the middle. Block 603 and main suction cup 604 move to both sides, so that main suction cup 604 drives the sucked vacuum bag food packaging bag to be pulled to both sides. If the bag food leaks, main suction cup 604 drives the packaging bag to move to both sides. If the packaging bag is intact, main suction cup 604 cannot drive the packaging bag to move to both sides, thereby realizing leakage detection of bagged vacuum food. Moreover, even if the bagged vacuum food is only slightly damaged, main suction cup 604 can drive the packaging bag to move to both sides, thereby detecting the slightly damaged bagged vacuum food, making the detection more accurate.

[0036] A replacement part 7 is provided in the middle of the detection part 6. If the main suction cup 604 covers the damaged area, it will be impossible to detect the damaged vacuum-packed food in bags. At this time, the replacement part 7 adsorbs the packaging bag, causing the main suction cup 604 to leave the packaging bag, exposing the area adsorbed by the main suction cup 604 for re-detection, thereby making the detection more comprehensive and accurate. The replacement part 7 includes a secondary moving block 701, a secondary suction cup 702, a second spring 703, a second telescopic rod 704, an electromagnet two 705, and a permanent magnet two 706; the secondary moving block 701 is slidably connected to the main moving block 603, and multiple secondary suction cups 702 are provided and evenly installed on the surface of the secondary moving block 701. The second spring 703 and the second telescopic rod 704 are fixedly connected between the secondary moving block 701 and the installation box 602, and the second spring 703 is sleeved outside the second telescopic rod 704. The electromagnet two 705 is fixedly installed on the installation box 602, and the permanent magnet two 706 is fixedly installed on the secondary moving block 701. In the natural state, the outer surface of the secondary moving block 701 is located inside the main moving block 603, which can prevent the main suction cup 604 from being interfered by the secondary suction cup 702 during operation.

[0037] When the main suction cup 604 adsorbs the packaging bag and pulls it, and the detection distance sensor 609 detects that the distance has not changed significantly, it will transmit the detected signal to the processor and control the electromagnet two 705 to be energized to repel the permanent magnet two 706 through the controller, driving the secondary suction cups 702 to adsorb on both sides of the packaging bag. Then, control the electromagnet one 607 to be powered off, and drive the main suction cup 604 to reset and leave the packaging bag under the action of the first spring 605, exposing the position adsorbed by the main suction cup 604. Then, the magnetic property of the electromagnet one 607 changes to attract the permanent magnet one 608, causing the secondary suction cups 702 to drive the adsorbed vacuum-packed food packaging bag to be pulled to both sides for re-leakage detection, thereby realizing comprehensive detection, avoiding misjudgment, and making the detection more accurate.

[0038] Ventilation hoses 8 are provided on both the main moving block 603 and the secondary moving block 701. The ventilation hoses 8 on the main moving block 603 and the secondary moving block 701 are respectively connected to the main suction cup 604 and the secondary suction cup 702. The other ends of the ventilation hoses 8 penetrate through the installation box 602 and are connected to the micro air pump 16. The micro air pump 16 is fixedly installed on the support 601. The micro air pump 16 below the fixed slide rail 3 is located between the support frames 2, and the micro air pump 16 below the moving slide rail 4 is located between the installation frames 901, which can prevent the air pipeline from being wound around the support frames 2 and the installation frames 901 during rotation.

[0039] Multiple sliders 5 are evenly distributed. The detection parts 6 on the fixed slide rail 3 and the moving slide rail 4 are arranged opposite to each other and correspond one by one. The fixed slide rail 3 and the moving slide rail 4 have the same height and are parallel to each other.

[0040] An adjusting member 9 is provided on the workbench 1. The distance between the movable slide rail 4 and the fixed slide rail 3 can be adjusted through the adjusting member 9. The adjusting member 9 includes a mounting frame 901, a support rod 902, a threaded rod 903, a threaded hole 904, a mounting table 905 and a motor 906. The mounting frame 901 is fixedly connected to the workbench 1. There are multiple mounting frames 901 and they are grouped in pairs. The support rod 902 is fixedly connected between the mounting frames 901. The support rod 902 passes through the movable slide rail 4 and is slidably connected to the movable slide rail 4. The threaded rod 903 is rotatably connected between one group of mounting frames 901. The threaded hole 904 is opened in the middle of the movable slide rail 4. The threaded rod 903 is threadedly connected to the threaded hole 904. The mounting table 905 is fixedly connected to one of the mounting frames 901 connected to the threaded rod 903. The motor 906 is fixedly installed on the mounting table 905. One end of the threaded rod 903 passes through the mounting frame 901 and is fixedly connected to the output shaft of the motor 906.

[0041] Start the motor 906 to drive the threaded rod 903 to rotate. Under the limiting action of the support rod 902, drive the movable slide rail 4 to move, and adjust the distance between the movable slide rail 4 and the fixed slide rail 3, so as to be able to adapt to vacuum-packed foods of different thicknesses and sizes for detection, making the device more practical.

[0042] Two chutes 10 are fixedly connected to the upper surface of the workbench 1. A waste collection box 11 and a product collection box 12 are respectively slidably connected to the two chutes 10. Handles 13 are fixedly connected to both the waste collection box 11 and the product collection box 12.

[0043] By pulling the handle 13, the waste collection box 11 and the product collection box 12 can be pulled to move in the chute 10 to collect and unload unqualified products and qualified products.

[0044] Displacement sensors 14 are installed on both sides of the fixed slide rail 3 and the movable slide rail 4 that are close to each other. The displacement sensors 14 are located above the waste collection box 11.

[0045] When the vacuum food packaging bag is damaged, since the packaging bag is pulled and moved to both sides, it will drive the main moving block 603 and the auxiliary moving block 701 to move together. Therefore, the positions of the main moving block 603 and the auxiliary moving block 701 will change. When the displacement sensor 14 detects that the position of the main moving block 603 has changed, it will transmit the detected signal to the processor and control the electromagnet one 607, the electromagnet two 705 and the micro air pump 16 to disconnect through the controller, so that the damaged vacuum-packed food will fall into the waste collection box 11 to achieve automatic sorting.

[0046] An angle sensor 15 is provided at the top of the installation box 602. The angle sensor 15, the distance sensor 609 and the displacement sensor 14 are all connected to the electromagnet one 607, the electromagnet two 705 and the micro air pump 16 through the controller.

[0047] When the angle sensor 15 detects that it rotates to the horizontal position above the product collection box 12, the detected signal is transmitted to the processor, and the electromagnet 607, the electromagnet 705, and the micro air pump 16 are controlled to disconnect through the controller, so that the qualified bagged food automatically falls into the product collection box 12. When the angle sensor 15 rotates to the horizontal state on the other side, at this time, the detection part 6 is at the feeding position. At this time, the angle sensor 15 transmits the detected signal to the processor, and the electromagnet 607 and the micro air pump 16 are controlled to work through the controller to adsorb and detect the bagged vacuum food.

[0048] Working principle: Before detection, the motor 906 is started to drive the threaded rod 903 to rotate. Under the limiting action of the support rod 902, the moving slide rail 4 is driven to move, and the distance between the moving slide rail 4 and the fixed slide rail 3 is adjusted according to the thickness of the bagged vacuum food, so that the device adapts to the thickness size of the current bagged vacuum food and performs detection;

[0049] When the angle sensor 15 rotates to the horizontal state at the feeding position, at this time, the angle sensor 15 transmits the detected signal to the processor, and the electromagnet 607 and the micro air pump 16 are controlled to work through the controller. The electromagnet 607 is energized to attract the permanent magnet 608, driving the main moving blocks 603 and the main suction cups 604 on both sides to move to both sides. Then, the bagged vacuum food to be detected is placed between the main suction cups 604. Next, the micro air pump 16 is started to make the main suction cups 604 generate suction. The magnetic property of the electromagnet 607 changes to repel the permanent magnet 608, thereby driving the main moving blocks 603 and the main suction cups 604 on both sides to approach the vacuum bagged food in the middle and adsorb on both sides of the vacuum bagged food. Then, the magnetic property of the electromagnet 607 is changed again to attract the permanent magnet 608, driving the main moving blocks 603 and the main suction cups 604 on both sides to move to both sides, so that the main suction cups 604 drive the adsorbed vacuum bagged food packaging bag to be pulled to both sides. If the bagged food leaks air, then the main suction cup 604 will drive the packaging bag to move to both sides. If the packaging bag is intact, then the main suction cup 604 cannot drive the packaging bag to move to both sides, thereby realizing the air leakage detection of the bagged vacuum food. Moreover, even if the bagged vacuum food only has a slight breakage, the main suction cup 604 can also drive the packaging bag to move to both sides, so that the slightly damaged bagged vacuum food can be detected, making the detection more accurate;

[0050] If the main suction cup 604 covers the damaged area, it will be impossible to detect the damaged vacuum-packed food in bags. Therefore, when the main suction cup 604 adsorbs the packaging bag and pulls it, and the detection distance sensor 609 detects that the distance has not changed significantly, the detected signal will be transmitted to the processor and the electromagnet two 705 will be controlled to be energized through the controller to repel the permanent magnet two 706, driving the auxiliary suction cup 702 to adsorb on both sides of the packaging bag. Then, the electromagnet one 607 will be controlled to be powered off, and under the action of the spring one 605, the main suction cup 604 will be driven to reset and leave the packaging bag, exposing the position adsorbed by the main suction cup 604. Then, the magnetic property of the electromagnet one 607 will change to attract the permanent magnet one 608, causing the auxiliary suction cup 702 to drive the adsorbed vacuum-packed food packaging bag to be pulled to both sides, and leak detection will be performed again, so as to achieve comprehensive detection, avoid misjudgment, and make the detection more accurate;

[0051] When the vacuum food packaging bag is damaged, since the movement of the packaging bag being pulled to both sides will drive the main moving block 603 and the auxiliary moving block 701 to move together, the positions of the main moving block 603 and the auxiliary moving block 701 will change. When the displacement sensor 14 detects that the position of the main moving block 603 has changed, the detected signal will be transmitted to the processor and the electromagnet one 607, the electromagnet two 705 and the micro air pump 16 will be controlled to be disconnected through the controller, so that the damaged vacuum-packed food will fall into the waste collection box 11, realizing automatic sorting;

[0052] When the angle sensor 15 detects that it has rotated to the horizontal position above the product collection box 12, the detected signal will be transmitted to the processor and the electromagnet one 607, the electromagnet two 705 and the micro air pump 16 will be controlled to be disconnected through the controller, so that the qualified bagged food will automatically fall into the product collection box 12;

[0053] When the waste collection box 11 and the product collection box 12 are full, by pulling the handle 13, the waste collection box 11 and the product collection box 12 are pulled to move in the chute 10 to unload the unqualified products and qualified products.

[0054] As described above, only the preferred specific embodiment of the present application is provided, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution of the present application and its improved concept, makes equivalent replacement or change, and should be covered by the protection scope of the present application.

Claims

1. An automatic airtightness detection device for bagged vacuum food, comprising a workbench (1), characterized in that, A support frame (2) is fixedly installed on the workbench (1). A fixed slide rail (3) is fixedly installed on the support frame (2). Above the workbench (1), a movable slide rail (4) is further provided. A plurality of sliders (5) are slidably connected to both the fixed slide rail (3) and the movable slide rail (4). A detection member (6) is arranged on the slider (5). The detection member (6) includes a bracket (601), a mounting box (602), a main moving block (603), a main suction cup (604), a first spring (605), a first telescopic rod (606), a first electromagnet (607), a first permanent magnet (608), and a distance sensor (609). The bracket (601) is fixedly connected to the slider (5). The mounting box (602) is fixedly connected to the top of the bracket (601). The main moving block (603) is slidably connected to the mounting box (602). A plurality of main suction cups (604) are arranged and evenly installed on the surface of the main moving block (603). The first spring (605) and the first telescopic rod (606) are fixedly connected between the main moving block (603) and the mounting box (602), and the first spring (605) is sleeved outside the first telescopic rod (606). The first electromagnet (607) is fixedly installed on the mounting box (602). The first permanent magnet (608) is fixedly installed on the main moving block (603). The distance sensor (609) is fixedly installed on the main moving block (603).

2. The automatic airtightness detection device for bagged vacuum food according to claim 1, wherein, A replacement member (7) is arranged in the middle of the detection member (6). The replacement member (7) includes a secondary moving block (701), a secondary suction cup (702), a second spring (703), a second telescopic rod (704), a second electromagnet (705), and a second permanent magnet (706). The secondary moving block (701) is slidably connected to the main moving block (603). A plurality of secondary suction cups (702) are arranged and evenly installed on the surface of the secondary moving block (701). The second spring (703) and the second telescopic rod (704) are fixedly connected between the secondary moving block (701) and the mounting box (602), and the second spring (703) is sleeved outside the second telescopic rod (704). The second electromagnet (705) is fixedly installed on the mounting box (602). The second permanent magnet (706) is fixedly installed on the secondary moving block (701).

3. The automatic airtightness detection device for bagged vacuum food according to claim 2, characterized in that, Ventilation hoses (8) are arranged on both the main moving block (603) and the secondary moving block (701). The ventilation hoses (8) on the main moving block (603) and the secondary moving block (701) are respectively communicated with the main suction cup (604) and the secondary suction cup (702). The other ends of the ventilation hoses (8) penetrate through the mounting box (602) and are connected to a micro air pump (16). The micro air pump (16) is fixedly installed on the bracket (601).

4. The automatic airtightness detection device for bagged vacuum food according to claim 1, wherein, A plurality of the sliders (5) are evenly distributed. The detection members (6) on the fixed slide rail (3) and the movable slide rail (4) are arranged opposite to each other and correspond one by one. The fixed slide rail (3) and the movable slide rail (4) are of the same height and are parallel to each other.

5. The automatic airtightness detection device for bagged vacuum food according to claim 1, wherein, An adjusting member (9) is provided on the workbench (1), and the adjusting member (9) includes a mounting frame (901), a support rod (902), a threaded rod (903), a threaded hole (904), a mounting table (905) and a motor (906); The mounting frame (901) is fixedly connected to the workbench (1), there are a plurality of the mounting frames (901) and they are grouped in pairs, the support rod (902) is fixedly connected between the mounting frames (901), the support rod (902) penetrates through the moving slide rail (4) and is slidably connected to the moving slide rail (4), the threaded rod (903) is rotatably connected between one group of the mounting frames (901), the threaded hole (904) is opened in the middle of the moving slide rail (4), the threaded rod (903) is threadedly connected to the threaded hole (904), the mounting table (905) is fixedly connected to one of the mounting frames (901) connected to the threaded rod (903), the motor (906) is fixedly installed on the mounting table (905), and one end of the threaded rod (903) penetrates through the mounting frame (901) and is fixedly connected to the output shaft of the motor (906).

6. The automatic airtightness detection device for bagged vacuum food according to claim 1, characterized in that, Two chutes (10) are fixedly connected to the upper surface of the workbench (1), a waste collection box (11) and a product collection box (12) are respectively slidably connected to the two chutes (10), and handles (13) are fixedly connected to both the waste collection box (11) and the product collection box (12).

7. An automatic airtightness detection device for bagged vacuum food according to claim 6, characterized in that, Displacement sensors (14) are installed on one side of the fixed slide rail (3) and the moving slide rail (4) close to each other, and the displacement sensors (14) are located above the waste collection box (11).

8. An automatic airtightness detection device for bagged vacuum food according to claim 7, characterized in that, An angle sensor (15) is provided at the top of the installation box (602), and the angle sensor (15), the distance sensor (609) and the displacement sensor (14) are all connected to the electromagnet one (607), the electromagnet two (705) and the micro air pump (16) through a controller.

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