Fruit freeze-drying packaging bag sealing test device

Abstract

The invention belongs to the technical field of food packaging bags, and particularly discloses a fruit freeze-drying packaging bag sealing test device which comprises a storage frame, a first handle is fixedly connected to the top of the storage frame, a water injection opening is formed in the storage frame, a plurality of perforated plates are fixedly connected to the storage frame, and a storage assembly is arranged at the tops of the perforated plates. A plurality of packaging bags can be tested at a time, the testing efficiency is remarkably improved, a user does not need to observe by naked eyes in the testing process, the testing process is simplified, the operation experience of the user is optimized, the packaging bags are always located in a storage box in the testing process, the packaging bags are kept immersed in water in the whole process, adaptation to the packaging bags with different sizes and different weights is completed, and the testing efficiency is improved. Only the bubbles in the observation part are analyzed, no other sundries exist, black and white image processing is simpler than color image processing, the algorithm complexity can be effectively reduced, the AI processing speed and accuracy are improved, and AI automatic analysis and screening are more convenient.

Description

Technical Field

[0001] The invention belongs to the field of food packaging bags, and specifically discloses a sealing test device for freeze-dried fruit packaging bags. Background Art

[0002] During the production process of freeze-dried fruit, moisture is removed, but a porous and loose structure is left. This structure is similar to a sponge, with a large specific surface area and can absorb a large amount of moisture. When exposed to the outdoors, water vapor molecules in the air will be absorbed by these pores, causing the freeze-dried fruit to become moist. For example, there are many tiny pores on the surface of freeze-dried strawberries. When these pores come into contact with humid air, they are like small "traps" that capture water vapor molecules. Therefore, in order to facilitate the preservation and storage of freeze-dried fruit, the sealing of the packaging bags that contain and protect freeze-dried fruit is tested.

[0003] An existing detection method is to place the packaging bag in a transparent container filled with water and then seal the container, then use an air pump to vacuum the container, and judge by the naked eye whether there are bubbles in the packaging bag in the water, and judge the sealing effect by the change in the shape of the packaging bag. However, the number of packaging bags that can be tested at one time using the above method is limited. When there are too many packaging bags, they will squeeze each other in the water, and it is difficult for users to judge by the naked eye whether bubbles are generated, so there is room for improvement. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a sealing test device for freeze-dried fruit packaging bags to solve the problems of low testing efficiency and difficult observation in the prior art.

[0005] To achieve the above purpose, the present invention provides a sealing test device for a frozen-dried fruit packaging bag, comprising a storage frame, a first handle fixedly connected to the top of the storage frame, a water injection port provided on the storage frame, a plurality of porous plates fixedly connected to the storage frame, a storage assembly provided on the top of the porous plates, a closed box provided on the outside of the storage frame, and the storage frame slides and is inserted into the closed box, a first sealing member fixedly connected to one side of the storage frame, a sealing plate fixedly connected to the inside of the closed box, and the sealing plate and the storage frame are slidably connected, a sealing cover fixedly installed on the top of the closed box, an air port provided on the sealing cover, a water outlet fixedly connected to the bottom of the closed box, a support block fixedly connected to the inside of the water outlet, and the support block abuts against the bottom of the storage frame, a support seat fixedly connected to the bottom of the closed box, and a projection recording assembly provided on the closed box; The projection recording component is used for recording and shooting the shadow left by the light passing through the bubble.

[0006] In the above technical solution, preferably, the projection recording assembly includes a second protrusion chamber and a first protrusion chamber which are respectively fixedly connected on both sides of the closed box and are both arranged in a conical structure, a camera assembly is fixedly installed on the first protrusion chamber, a lighting assembly is fixedly installed on the second protrusion chamber, and a projection screen is fixedly connected to one side of the closed box close to the camera assembly.

[0007] In the above technical solution, preferably, the storage assembly includes a storage box fixedly connected to the porous plate, a second sealing member is fixedly connected to the outer wall of the storage box, a limiting plate is fixedly connected to the top of the storage box, a movable frame is slidably connected inside the storage box, a baffle is fixedly connected to one side of the movable frame, a matching plate is fixedly connected to one side of the storage box, and an observation portion is fixedly connected to the top of the storage box.

[0008] In the above technical solution, preferably, a fixed frame is fixedly connected to the outer wall of the observation part, an observation hole corresponding to the observation part is opened on the outer wall of the fixed frame, connecting holes are symmetrically opened on the observation part, liquid holes are symmetrically opened on the outer walls of the storage box and the movable frame, a connecting pipe is fixedly connected between the storage boxes, and evenly distributed filling blocks are fixedly connected inside the fixed frame.

[0009] In the above technical solution, preferably, the bottom of the porous plate is fixedly connected to a closing guide plate, and the outer wall of the fixed frame is symmetrically provided with drainage holes.

[0010] In the above technical solution, preferably, both sides of the storage component are fixedly connected with water outlet chambers, a plug hole is opened on the water outlet chamber, a plug plate is inserted in the plug hole and slidably connected, and the plug plate penetrates the inserted porous plate and the storage frame and extends to the top of the storage frame.

[0011] In the above technical solution, preferably, a connecting plate is provided on one side of the storage assembly, and the connecting plate is fixedly connected to the outer wall of the movable frame, a third handle is fixedly connected to one side of the connecting plate, and a damping spring rod is symmetrically provided between the outer wall of the connecting plate and the storage assembly.

[0012] In the above technical solution, preferably, a pair of high-density boards are fixedly connected to the inner wall of the observation portion.

[0013] Compared with the prior art, the present invention has the following beneficial effects: When light passes through bubbles in water, refraction occurs. Due to the different refractive indices of the air in the bubble and the surrounding water, the refraction angle of the light at the edge of the bubble is different, causing the propagation path of the light to change, making the brightness of the bubble and the outside of the bubble different, thus forming a shadow. During the vacuuming process, the camera component only needs to intercept several nodes for shooting and upload them to the multimedia platform. The user can intuitively see which observation part has bubbles floating in it through comparison, and then determine the leaking packaging bag. After adopting the above design, it can test multiple packaging bags at a time, and the test efficiency is significantly improved. During the test, the user does not need to observe with the naked eye, which simplifies the test process. The user's operating experience is optimized. During the process, the packaging bag is always located in the storage box and kept immersed in water throughout the process, so as to adapt to packaging bags of different sizes and weights. Only the bubbles in the observation part are analyzed, and there is no other debris. In addition, black and white image processing is simpler than color image processing, which can effectively reduce the complexity of the algorithm, improve the AI ​​processing speed and accuracy, and facilitate AI to perform automatic analysis and screening. In summary, the present invention not only provides a technical solution with different technical concepts, represents the development trend of new technologies, but also has obvious positive technical effects in terms of test efficiency, operating experience, accuracy, data processing and environmental protection compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the closed box structure of the present invention; Figure 3 It is a side view of the closed box structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the storage frame of the present invention in a closed box; Figure 5 It is a schematic diagram of the position structure of the lighting assembly of the present invention; Figure 6 A top view of the storage frame structure of the present invention; Figure 7 It is a schematic diagram of the internal structure of the closed box of the present invention; Figure 8 It is a schematic diagram of the internal structure of the storage box of the present invention; Fig. 9 It is a schematic diagram of the storage component structure of the present invention.

[0015] In the figure: 1. storage frame; 2. storage component; 3. porous plate; 4. first sealing member; 5. plug-in plate; 6. closing box; 7. cover; 8. support seat; 9. first protruding chamber; 10. second protruding chamber; 11. lighting component; 12. camera component; 13. projection screen; 14. first handle; 15. cover plate; 16. water outlet; 17. support block; 18. storage box; 19. movable frame; 20. baffle; 21. liquid hole; 22. observation part; 23. high-density board; 24. limit plate; 25. connecting hole; 26. connecting plate; 27. third handle; 28. second sealing member; 29. ​​fixed frame; 30. observation hole; 31. connecting pipe; 32. damping spring rod; 33. water outlet chamber; 34. plug-in hole; 35. drain hole; 36. matching plate; 37. filling block; 38. air port; 39. water injection port. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1-Figure 9The device for testing the sealing of a frozen-dried fruit packaging bag shown in the figure comprises a storage frame 1, a first handle 14 is fixedly connected to the top of the storage frame 1, a water injection port 39 is arranged on the storage frame 1, a plurality of porous plates 3 are fixedly connected to the storage frame 1, a storage assembly 2 is arranged on the top of the porous plates 3, a closed box 6 is arranged outside the storage frame 1, and the storage frame 1 is slidably inserted into the closed box 6, a first sealing member 4 is fixedly connected to one side of the storage frame 1, a sealing plate 15 is fixedly connected inside the closed box 6, and the sealing plate 15 is slidably connected to the storage frame 1, a sealing cover 7 is fixedly installed on the top of the closed box 6, an air port 38 is arranged on the sealing cover 7, a water outlet 16 is fixedly connected to the bottom of the closed box 6, a support block 17 is fixedly connected inside the water outlet 16, and the support block 17 is connected to the bottom of the storage frame 1 The two parts are abutted against each other, a support seat 8 is fixedly connected to the bottom of the closed box 6, a projection recording assembly is arranged on the closed box 6, the projection recording assembly is used to shoot and record the shadow left by the shooting light passing through the bubble, the projection recording assembly includes a second protruding chamber 10 and a first protruding chamber 9 which are respectively fixedly connected to the two sides of the closed box 6 and are both arranged in a conical structure, a camera assembly 12 is fixedly installed on the first protruding chamber 9, a lighting assembly 11 is fixedly installed on the second protruding chamber 10, a projection screen 13 is fixedly connected to one side of the closed box 6 close to the camera assembly 12, the storage assembly 2 includes a storage box 18 fixedly connected to the porous plate 3, a second sealing member 28 is fixedly connected to the outer wall of the storage box 18, a limiting plate 24 is fixedly connected to the top of the storage box 18, and a light source 24 is fixedly installed in the storage box 18. A movable frame 19 is slidably connected, a baffle 20 is fixedly connected to one side of the movable frame 19, a matching plate 36 is fixedly connected to one side of the storage box 18, an observation portion 22 is fixedly connected to the top of the storage box 18, a closing guide plate is fixedly connected to the bottom of the porous plate 3, drainage holes 35 are symmetrically opened on the outer wall of the fixed frame 29, a fixed frame 29 is fixedly connected to the outer wall of the observation portion 22, an observation hole 30 corresponding to the observation portion 22 is opened on the outer wall of the fixed frame 29, and a connecting hole 25 is symmetrically opened on the observation portion 22, liquid holes 21 are symmetrically opened on the outer walls of the storage box 18 and the movable frame 19, a connecting pipe 31 is fixedly connected between the storage boxes 18, and uniformly distributed filling blocks 37 are fixedly connected inside the fixed frame 29, and the storage frame 1 is set to an open structure, and its side has The opening allows the user to pull out the movable frame 19 in the storage box 18, so as to put the packaging bag containing the frozen-dried fruit into it. After filling all the storage boxes 18, the movable frame 19 is pushed back into the storage box 18 to complete the internal closure of the storage box 18. Then the user lifts the entire storage frame 1 through the first handle 14 and puts it into the closed box 6. During the process, the sealing plate 15 fits one side of the storage frame 1 and closes the opening to complete the closure of the storage frame 1. At this time, the user injects water into the storage frame 1 through the water injection port 39. The water will preferentially flow into the storage assembly 2 of the first layer and flow into the storage box 18 through the observation portion 22. Through the connection between the connecting pipe 31 and the fixed frame 29, the storage box 18 and the observation portion 22 are connected to each other, so that water can pass through.The water levels in all the storage boxes 18 and the observation part 22 are kept consistent. After the first layer is full of water, the water will spread outward through the drainage holes 35 and flow through the porous plate 3 into the storage box 18 of the next layer. Because the bottom of the porous plate 3 is provided with a closing guide plate for gathering water flow, it is ensured that the water can enter the observation part 22 of the next layer. The storage frame 1 and the water outlet 16 are in a connected state and are provided with holes for water flow. Therefore, after all the storage boxes 18 are filled at one time, the water in the fixed frame 29 at the bottom layer will flow out through the drainage holes 35 and pass through the porous plate 3. 3 and the water outlet 16 flow out of the closed box 6. At this time, the user stops the water supply and closes the water outlet 16, and then uses the air pump to connect the air port 38 to evacuate the closed box 6. During the process, the lighting component 11 emits light and passes through the storage frame 1 to the projection screen 13. When the light passes through the bubbles in the water, refraction occurs. Due to the different refractive indices of the air in the bubble and the surrounding water, the refraction angle of the light at the edge of the bubble is different, resulting in a change in the propagation path of the light, making the light in the bubble and outside the bubble different, thereby forming a shadow. During the emptying process, the camera component 12 only needs to intercept several nodes for shooting and upload them to the multimedia platform. The user can intuitively see which observation part 22 has bubbles floating in it by comparison, and then judge the leaking packaging bag. After adopting the above design, it can test multiple packaging bags at a time, and the test efficiency is significantly improved. During the test, the user does not need to observe with the naked eye, which simplifies the test process and optimizes the user's operating experience. During the process, the packaging bag is always located in the storage box 18, and it is kept immersed in water throughout the process to complete the adaptation to packaging bags of different sizes and weights, and only the bubbles in the observation part 22 are analyzed, without other debris, and the black and white image processing is simpler than the color image, which can effectively reduce the algorithm complexity, improve the AI ​​processing speed and accuracy, and facilitate AI to perform automatic analysis and screening. In summary, the present invention not only provides a technical solution with different technical concepts, represents the development trend of new technologies, but also has obvious positive technical effects compared with the prior art in terms of test efficiency, operating experience, accuracy, data processing and environmental protection. ,

[0019] Both sides of the storage component 2 are fixedly connected with a water outlet chamber 33, and a plug hole 34 is opened on the water outlet chamber 33. A plug plate 5 is inserted and slidably connected in the plug hole 34, and the plug plate 5 penetrates the inserted porous plate 3 and the storage frame 1 and extends to the top of the storage frame 1. After use, the plug plate 5 is pulled out, and the water in the storage box 18 will flow out to the inside of the storage frame 1 through the plug hole 34. This part of the water will flow down layer by layer through the porous plate 3, and then flow out of the inside of the closed box 6 through the water outlet part 16, completing the rapid emptying of the test water in the storage box 18.

[0020] A connecting plate 26 is provided on one side of the storage component 2, and the connecting plate 26 is fixedly connected to the outer wall of the movable frame 19. A third handle 27 is fixedly connected to one side of the connecting plate 26. Damping spring rods 32 are symmetrically provided between the outer wall of the connecting plate 26 and the storage component 2. Through this design, pulling the third handle 27 can drive all the movable frames 19 to slide out of the interior of the storage box 18, which is more convenient for loading and taking. At the same time, after the loading and taking is completed, loosening the third handle 27 can make the movable frame 19 automatically retract into the interior of the storage box 18, and under the elastic force of the damping spring rod 32, it is tightly pressed against the outer wall of the storage box 18 to complete the sealing.

[0021] A pair of high-density boards 23 are fixedly connected to the inner wall of the observation portion 22 . The color of the high-density boards 23 reflected on the projection screen 13 is different from that of the observation portion 22 , so two vertical lines can be formed to facilitate calibration of the area of ​​the observation portion 22 .

[0022] Working principle: The storage frame 1 is configured as an open structure with an opening on its side for the user to pull out the movable frame 19 in the storage box 18 to facilitate placing the packaging bag containing the frozen-dried fruit therein. After filling all the storage boxes 18, the movable frame 19 is pushed back into the interior of the storage box 18 to complete the internal closure of the storage box 18. The user then lifts the entire storage frame 1 through the first handle 14 and places it into the closed box 6. During the process, the sealing plate 15 fits one side of the storage frame 1 and closes the opening to complete the closure of the storage frame 1. At this time, the user injects water into the interior of the storage frame 1 through the water injection port 39. The water will preferentially flow into the storage assembly 2 of the first layer and into the storage box 18 through the observation portion 22. Through the connection between the connecting pipe 31 and the fixed frame 29, the storage box 18 and The observation parts 22 are all connected to each other, and water is supplied through them to keep the water levels in all the storage boxes 18 and the observation parts 22 consistent. After the first layer is full of water, the water will spread outward through the drainage holes 35 and pass through the porous plate 3 to flow into the storage box 18 of the next layer. Because the bottom of the porous plate 3 is provided with a closing guide plate for gathering the water flow, it is ensured that the water can enter the observation part 22 of the next layer. The fixed frame 1 and the water outlet 16 are in a connected state and are provided with holes for water flow. Therefore, after all the storage boxes 18 are filled at one time, the water inside the fixed frame 29 located at the bottom layer will flow out through the drainage holes 35, pass through the porous plate 3 and the water outlet 16 and flow out of the closed box 6. At this time, the user stops the water supply and closes the water outlet 16, and then connects the air port 38 to the closed box 6 through the air pump. The closed box 6 is evacuated, and during the process, the lighting component 11 emits light, which passes through the storage frame 1 to the projection screen 13. When the light passes through the bubbles in the water, refraction occurs. Since the refractive index of the air in the bubble and the surrounding water is different, the refraction angle of the light at the edge of the bubble is different, which causes the propagation path of the light to change, making the light in the bubble and the outside of the bubble different, thus forming a shadow. During the vacuuming process, the camera component 12 only needs to intercept a few nodes for shooting and upload them to the multimedia platform. The user can intuitively see which observation part 22 has bubbles floating in it through comparison, and then determine the leaking packaging bag. After adopting the above design, it can test multiple packaging bags at a time, and the test efficiency is significantly improved. No need during the test The user observes with the naked eye, which simplifies the test process and optimizes the user's operating experience. During the process, the packaging bag is always located in the storage box 18 and kept immersed in water throughout the process, so as to adapt to packaging bags of different sizes and weights. Only the bubbles in the observation part 22 are analyzed, and there is no other debris. In addition, black and white image processing is simpler than color image processing, which can effectively reduce the complexity of the algorithm, improve the AI ​​processing speed and accuracy, and facilitate AI to perform automatic analysis and screening. In summary, the present invention not only provides a technical solution with different technical concepts, represents the development trend of new technologies, but also has obvious positive technical effects in terms of test efficiency, operating experience, accuracy, data processing and environmental protection compared to the prior art.

[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A sealing test device for a freeze-dried fruit packaging bag, comprising a storage frame (1), a first handle (14) being fixedly connected to the top of the storage frame (1), characterized in that: The storage frame (1) is provided with a water injection port (39), the storage frame (1) is fixedly connected to a plurality of porous plates (3), the top of the porous plates (3) is provided with a storage assembly (2), a closed box (6) is provided outside the storage frame (1), and the storage frame (1) is slidably inserted into the closed box (6), a first sealing member (4) is fixedly connected to one side of the storage frame (1), a sealing plate (15) is fixedly connected to the closed box (6), and the sealing plate (15) is connected to the storage frame (1). The closed box (6) and the storage frame (1) are slidably connected to each other; a cover (7) is fixedly mounted on the top of the closed box (6); an air port (38) is provided on the cover (7); a water outlet (16) is fixedly connected to the bottom of the closed box (6); a support block (17) is fixedly connected inside the water outlet (16); the support block (17) abuts against the bottom of the storage frame (1); a support seat (8) is fixedly connected to the bottom of the closed box (6); and a projection recording component is provided on the closed box (6); The projection recording component is used for recording and shooting the shadow left by the light passing through the bubble.

2. A freeze-dried fruit packaging bag sealing test device according to claim 1, characterized in that: The projection recording assembly comprises a second protruding chamber (10) and a first protruding chamber (9) which are respectively fixedly connected to each other on both sides of a closed box (6) and are both arranged in a conical structure; a camera assembly (12) is fixedly mounted on the first protruding chamber (9); a lighting assembly (11) is fixedly mounted on the second protruding chamber (10); and a projection screen (13) is fixedly connected to one side of the closed box (6) close to the camera assembly (12).

3. A freeze-dried fruit packaging bag sealing test device according to claim 1, characterized in that: The storage assembly (2) comprises a storage box (18) fixedly connected to the porous plate (3), a second sealing member (28) fixedly connected to the outer wall of the storage box (18), a limit plate (24) fixedly connected to the top of the storage box (18), a movable frame (19) slidably connected inside the storage box (18), a baffle (20) fixedly connected to one side of the movable frame (19), a matching plate (36) fixedly connected to one side of the storage box (18), and an observation portion (22) fixedly connected to the top of the storage box (18).

4. A sealing test device for freeze-dried fruit packaging bags according to claim 3, characterized in that: A fixed frame (29) is fixedly connected to the outer wall of the observation portion (22); an observation hole (30) corresponding to the observation portion (22) is provided on the outer wall of the fixed frame (29); connecting holes (25) are symmetrically provided on the observation portion (22); liquid holes (21) are symmetrically provided on the outer walls of the storage box (18) and the movable frame (19); a connecting pipe (31) is fixedly connected between the storage boxes (18); and uniformly distributed filling blocks (37) are fixedly connected inside the fixed frame (29).

5. A sealing test device for freeze-dried fruit packaging bags according to claim 4, characterized in that: The bottom of the porous plate (3) is fixedly connected to a closing guide plate, and the outer wall of the fixed frame (29) is symmetrically provided with drainage holes (35).

6. A sealing test device for freeze-dried fruit packaging bags according to claim 3, characterized in that: Both sides of the storage assembly (2) are fixedly connected to a water outlet chamber (33), the water outlet chamber (33) is provided with a plug hole (34), a plug plate (5) is inserted into the plug hole (34) and slidably connected, and the plug plate (5) penetrates the inserted porous plate (3) and the storage frame (1) and extends to the top of the storage frame (1).

7. A sealing test device for freeze-dried fruit packaging bags according to claim 3, characterized in that: A connecting plate (26) is provided on one side of the storage assembly (2), and the connecting plate (26) is fixedly connected to the outer wall of the movable frame (19), a third handle (27) is fixedly connected to one side of the connecting plate (26), and damping spring rods (32) are symmetrically provided between the outer wall of the connecting plate (26) and the storage assembly (2).

8. The sealing test device for freeze-dried fruit packaging bag according to claim 3, characterized in that: A pair of high-density boards (23) are fixedly connected to the inner wall of the observation portion (22).

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