An air-filled sealing device for food processing

By integrating the inflation and sealing mechanisms, the problem of low inflation and sealing efficiency in existing devices has been solved, achieving a highly efficient inert gas inflation and sealing process, thus improving the efficiency and quality of food packaging.

CN224448306UActive Publication Date: 2026-07-03TIANJIN XINYU FOOD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN XINYU FOOD CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing sealing device's inflation and sealing mechanisms are not linked, resulting in low inflation and sealing efficiency.

Method used

A linkage inflation and sealing mechanism was designed. The inflation and sealing mechanism are operated synchronously by a motor-driven worm gear transmission system and a lead screw structure, so as to achieve linkage of inflation, sealing and air intake.

Benefits of technology

It improves the efficiency of gas filling and sealing, ensures the continuity of the inert gas filling and sealing process, avoids gas leakage, and improves the efficiency and quality of food packaging.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of food processing technology, and in particular to an inflatable sealing device for food processing. The device comprises a worktable, a sealing mechanism, an inflation / inflation mechanism, and a clamping mechanism. A support frame is fixed to the top surface of the worktable. The sealing mechanism is mounted on the support frame and is used for heat-sealing food packaging. The inflation / inflation mechanism is linked to the sealing mechanism and is used for inflating and absorbing air from the food packaging. The clamping mechanism is mounted on the worktable and is used to clamp the opening of the food packaging. This utility model provides an inflatable sealing device for food processing that solves the technical problem of the inability of the inflation / inflation mechanism and the sealing mechanism of existing sealing devices to work together, thus affecting the efficiency of the inflatable sealing process.
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Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to an air-filled sealing device for food processing. Background Technology

[0002] With the rapid development of the food industry, gas-filled packaging technology has become an important part of food processing due to its significant advantages in extending the shelf life of food and maintaining product freshness. Gas-filled sealing devices effectively inhibit microbial growth and oxidation reactions by injecting inert gas (such as nitrogen or carbon dioxide) into the packaging bag and sealing it. It is widely used in the packaging of perishable foods such as puffed foods, dairy products, and ready-to-eat meats.

[0003] When inflating and sealing a food bag, the air inside the bag must first be extracted, inert gas must be injected, the inflation mechanism must be removed from the bag, and finally the sealing mechanism must be used to seal the bag. Existing sealing devices do not have a linked inflation and sealing mechanism; that is, two parts need to be operated separately, resulting in low inflation efficiency. Utility Model Content

[0004] This invention provides an air-filled sealing device for food processing, which solves the technical problem that the air-filling and sealing mechanisms of existing sealing devices cannot be linked, thus affecting the air-filling and sealing efficiency.

[0005] To achieve this technical objective, the present invention adopts the following solution: an air-filled sealing device for food processing, comprising a worktable, a sealing mechanism, an air-filling mechanism, and a clamping mechanism;

[0006] A support frame is fixedly installed on the top surface of the workbench;

[0007] The sealing mechanism is mounted on the support frame and is used to heat seal the outer packaging of food.

[0008] The air-inhalation mechanism is linked to the sealing mechanism and is used to inflate and suffocate the outer packaging of food.

[0009] The clamping mechanism is set on the worktable and is used to clamp the opening of the food packaging.

[0010] Furthermore, the sealing mechanism includes a motor, a turbine, a worm gear, a first lead screw, a second lead screw, a first guide rod, a slider, and a heat sealing head;

[0011] The motor is fixed to the top of the support frame, and the output shaft of the motor passes through the top surface of the support frame and extends into the interior of the support frame;

[0012] The turbine and the motor's output shaft are coaxially and fixedly connected.

[0013] The worm gear is connected to the worm wheel drive;

[0014] The first lead screw and the second lead screw are coaxially fixedly connected to the end of the worm gear, respectively. The first lead screw and the second lead screw are respectively provided with a forward thread and a reverse thread. The first lead screw and the second lead screw are rotatably connected to the inner side wall of the support frame.

[0015] The first guide rod is arranged parallel to the worm gear, and the two ends of the first guide rod are fixedly connected to the inner side wall of the support frame respectively;

[0016] The slider is threadedly connected to the first lead screw or the second lead screw. The slider is slidably sleeved on the outside of the first guide rod, and a heat-sealed head is fixed at the bottom of the slider.

[0017] Furthermore, the inflation / inflation mechanism includes a screw, a lifting rod, and a limiting vertical rod;

[0018] The screw is coaxially and fixedly connected to the bottom of the motor output shaft;

[0019] The lifting rod is threaded onto the outside of the screw rod. The lifting rod has a hollow structure. The bottom of the lifting rod is equipped with an air intake head and an air inflation head. The side wall of the lifting rod is also provided with an air intake port and an air inflation port that are respectively connected to the air intake head and the air inflation head. The side wall of the lifting rod is provided with a limit groove.

[0020] The bottom of the limiting vertical rod is slidably locked in the limiting groove, and the top of the limiting vertical rod is fixedly connected to the top surface of the support frame.

[0021] Furthermore, the two clamping mechanisms are symmetrically arranged, and each clamping mechanism includes a vertical plate, a plug rod, a second guide rod, a fixed frame, a flexible clamping plate, and a spring;

[0022] The upright plate is fixedly connected to the top surface of the workbench;

[0023] The insertion rod is slidably inserted into the upright plate, and a limiting ring is fixed at the end of the insertion rod away from the other clamping mechanism;

[0024] The fixed frame is fixedly connected to the end of the insertion rod away from the limiting ring. The fixed frame is set horizontally. A second guide rod is fixed on the side of the fixed frame near the vertical plate. The second guide rod can slide through the vertical plate. A flexible clip is glued to the other side of the fixed frame.

[0025] The spring is sleeved on the insert rod, and the two ends of the spring abut against the upright plate and the fixed frame, respectively.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] The present invention discloses an air-filled sealing device for food processing, which is equipped with an air-filling mechanism linked to the sealing mechanism. When the sealing mechanism approaches the food bag to seal the food bag, the air-filling mechanism rises and is pulled out from the food bag; when the sealing mechanism moves away from the food bag, the air-filling mechanism can descend and insert into the food bag to inflate and absorb air into the food bag, thereby improving the efficiency of air-filled sealing. Attached Figure Description

[0028] Figure 1 A schematic diagram of an air-filled sealing device for food processing provided in an embodiment of this utility model;

[0029] Figure 2 for Figure 1 Enlarged view of part A:

[0030] Figure 3 Another schematic diagram of an air-filled sealing device for food processing provided in this embodiment of the present utility model;

[0031] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Workbench; 2. Sealing mechanism; 21. Motor; 22. Turbine; 23. Worm gear; 24. First lead screw; 25. Second lead screw; 26. First guide rod; 27. Slider; 28. Heat sealing head; 3. Inflation and suction mechanism; 31. Screw; 32. Lifting rod; 321. Suction head; 322. Inflation head; 323. Suction port; 324. Inflation port; 325. Slide groove; 33. Limiting vertical rod; 4. Clamping mechanism; 41. Vertical plate; 42. Insert rod; 43. Second guide rod; 44. Fixing frame; 45. Flexible clamp; 46. Spring; 47. Limiting ring; 5. Support frame. Detailed Implementation

[0034] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.

[0035] like Figures 1 to 4 As shown, the present invention provides an air-filled sealing device for food processing, comprising a workbench 1, a sealing mechanism 2, an air-filling mechanism 3, and a clamping mechanism 4. A support frame 5 is fixedly mounted on the top surface of the workbench 1, and the sealing mechanism 2 is mounted on the support frame 5 for heat sealing the outer packaging of food.

[0036] The sealing mechanism 2 includes a motor 21, a worm gear 22, a worm 23, a first lead screw 24, a second lead screw 25, a first guide rod 26, a slider 27, and a heat sealing head 28. The motor 21 is fixed to the top of the support frame 5, and its output shaft passes through the top surface of the support frame 5 and extends into the interior of the support frame 5. The worm gear 22 is coaxially and fixedly connected to the output shaft of the motor 21. The worm 23 is drive-connected to the worm gear 22. The first lead screw 24 and the second lead screw 25 are coaxially and fixedly connected to the ends of the worm 23, respectively. The first lead screw 24 and the second lead screw 25 are respectively provided with a forward thread and a reverse thread, and are rotatably connected to the inner wall of the support frame 5. The first guide rod 26 is arranged parallel to the worm 23, and its two ends are fixedly connected to the inner wall of the support frame 5. The slider 27 is threadedly connected to the first lead screw 24 or the second lead screw 25. The slider 27 is slidably sleeved on the outside of the first guide rod 26. A heat seal head 28 is fixedly provided at the bottom of the slider 27.

[0037] The air-inflation mechanism 3 is linked to the sealing mechanism 2 and is used to inflate and sufflate the outer packaging of food. The air-inflation mechanism 3 includes a screw 31, a lifting rod 32, and a limiting vertical rod 33. The screw 31 is coaxially and fixedly connected to the bottom of the output shaft of the motor 21. The lifting rod 32 is threaded onto the outside of the screw 31. The lifting rod 32 has a hollow structure. The bottom of the lifting rod 32 is provided with an air intake head 321 and an air inflation head 322. The side wall of the lifting rod 32 is also provided with an air intake port 323 and an air inflation port 324, which are respectively connected to the air intake head 321 and the air inflation head 322. The side wall of the lifting rod 32 is provided with a vertically extending limiting groove 325. The bottom of the limiting vertical rod 33 is slidably engaged in the limiting groove 325, and the top of the limiting vertical rod 33 is fixedly connected to the top surface of the support frame 5.

[0038] Clamping mechanism 4 is mounted on workbench 1 and is used to clamp the opening of food packaging. Two clamping mechanisms 4 are symmetrically arranged. Each clamping mechanism 4 includes a vertical plate 41, an insert rod 42, a second guide rod 43, a fixing frame 44, a flexible clamping piece 45, and a spring 46. The vertical plate 41 is fixedly connected to the top surface of workbench 1. The insert rod 42 is slidably inserted into the vertical plate 41, and a limiting ring 47 is fixedly provided at one end of the insert rod 42 away from the other clamping mechanism 4. The fixing frame 44 is fixedly connected to the end of the insert rod 42 away from the limiting ring 47. The fixing frame 44 is arranged laterally, and the second guide rod 43 is fixedly provided on the side of the fixing frame 44 near the vertical plate 41. The second guide rod 43 slidably passes through the vertical plate 41, and a flexible clamping piece 45 is bonded to the other side of the fixing frame 44. The spring 46 is sleeved on the insert rod 42, and both ends of the spring 46 abut against the vertical plate 41 and the fixing frame 44, respectively.

[0039] In use, motor 21 is started first. Motor 21 drives turbine 22 to rotate, turbine 22 drives worm gear 23 to rotate, and first lead screw 24 and second lead screw 25 rotate synchronously. The sliders 27 on the first lead screw 24 and second lead screw 25 move away from each other, causing the two heat sealing heads 28 to move away from each other. At the same time, motor 21 drives screw 31 to rotate. Since the limiting vertical rod 33 is inserted in the slide groove 325, the limiting vertical rod 33 can restrict the rotation of lifting rod 32, further causing lifting rod 32 to move downward. Lifting rod 32 drives air inflator 322 and air suction head 321 to move downward.

[0040] Then, connect the suction port 323 to the suction pump using a hose, and then connect the inflation port 324 to the inflation pump using another hose. Pull the limiting ring 47 to move the two flexible clips 45 away, and place the opening of the food bag containing the food over the outside of the bottom end of the lifting rod 32, then release the limiting ring 47. Under the restoring force of the spring 46, the flexible clips 45 press the opening of the food bag tightly, and there is a certain deformation at the inflation head 322 and the suction head 321.

[0041] First, the air is sucked out of the food bag using the suction head 321, and then the inflator head 322 fills the food bag with inert gas. After the food bag is filled with inert gas, the motor 21 is restarted and reversed. During this process, the lifting rod 32 rises, pulling the inflator head 322 and the suction head 321 out of the food bag. After the inflator head 322 and the suction head 321 leave the food bag, the two flexible clips 45 seal the opening of the food bag to prevent the inert gas from leaking out. At the same time, the two heat-sealing heads 28 move closer to each other until the opening of the food bag is heat-sealed.

[0042] The principle of the heat seal head 28 is to heat the food bag by using electrical energy, which is a common existing technology and is not limited in this application.

[0043] The flexible clips can be made of materials such as rubber or silicone, and this application does not impose any restrictions.

[0044] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. An aerated closure device for food processing, characterised in that, It includes a workbench (1), a sealing mechanism (2), an air filling and suction mechanism (3), and a clamping mechanism (4); The top surface of the workbench (1) is fixedly provided with a support frame (5); The sealing mechanism (2) is mounted on the support frame (5) and is used to heat seal the outer packaging of food. The air-inhalation mechanism (3) is linked to the sealing mechanism (2) and is used to inhale and inflate the outer packaging of the food. The clamping mechanism (4) is mounted on the workbench (1) and is used to clamp the opening of the food packaging.

2. An aerated closure device for food processing according to claim 1, wherein, The sealing mechanism (2) includes a motor (21), a turbine (22), a worm gear (23), a first lead screw (24), a second lead screw (25), a first guide rod (26), a slider (27), and a heat sealing head (28); The motor (21) is fixed to the top of the support frame (5), and the output shaft of the motor (21) passes through the top surface of the support frame (5) and extends into the interior of the support frame (5); The turbine (22) is coaxially and fixedly connected to the output shaft of the motor (21); The worm (23) is connected to the turbine (22) in a transmission connection; The first lead screw (24) and the second lead screw (25) are coaxially fixedly connected to the end of the worm (23), and the first lead screw (24) and the second lead screw (25) are respectively provided with a forward thread and a reverse thread. The first lead screw (24) and the second lead screw (25) are rotatably connected to the inner side wall of the support frame (5). The first guide rod (26) is arranged parallel to the worm gear (23), and the two ends of the first guide rod (26) are respectively fixedly connected to the inner sidewall of the support frame (5); The slider (27) is threadedly connected to the first lead screw (24) or the second lead screw (25). The slider (27) is slidably sleeved on the outside of the first guide rod (26). The heat seal head (28) is fixedly provided at the bottom of the slider (27).

3. An inflatable closure device for use in food processing according to claim 2, wherein The inflation / inhalation mechanism (3) includes a screw (31), a lifting rod (32), and a limiting vertical rod (33); The screw (31) is coaxially and fixedly connected to the bottom of the output shaft of the motor (21); The lifting rod (32) is threaded onto the outside of the screw (31). The lifting rod (32) has a hollow structure. The bottom of the lifting rod (32) is provided with an air intake head (321) and an air inflation head (322). The side wall of the lifting rod (32) is also provided with an air intake port (323) and an air inflation port (324) respectively communicating with the air intake head (321) and the air inflation head (322). The side wall of the lifting rod (32) is provided with a limiting groove (325). The bottom of the limiting vertical rod (33) is slidably engaged in the limiting groove (325), and the top of the limiting vertical rod (33) is fixedly connected to the top surface of the support frame (5).

4. An inflatable closure device for use in food processing according to claim 3, wherein The two clamping mechanisms (4) are symmetrically arranged. Each clamping mechanism (4) includes a vertical plate (41), a plug rod (42), a second guide rod (43), a fixed frame (44), a flexible clamping piece (45), and a spring (46). The upright plate (41) is fixedly connected to the top surface of the workbench (1); The insertion rod (42) is slidably inserted into the upright plate (41), and a limiting ring (47) is fixed at one end of the insertion rod (42) away from the other clamping mechanism (4); The fixed frame (44) is fixedly connected to the end of the insertion rod (42) away from the limiting ring (47). The fixed frame (44) is arranged horizontally. The second guide rod (43) is fixedly provided on the side of the fixed frame (44) close to the upright plate (41). The second guide rod (43) can slide through the upright plate (41). The flexible clip (45) is glued to the other side of the fixed frame (44). The spring (46) is sleeved on the insert rod (42), and the two ends of the spring (46) abut against the upright plate (41) and the fixed frame (44) respectively.