Food bag sealing device

By designing a food bag sealing device, an automated air extraction and sealing process is achieved using an air extraction device and sealing strip. This solves the problems of inconvenience in manual air extraction and air retention inside food bags in existing technologies, ensuring that air inside the food bag is effectively extracted and preventing food spoilage.

CN224045554UActive Publication Date: 2026-03-27JIANGSU HEPUFU HOUSEHOLD ITEMS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing small food bag sealing machines require manual air removal before sealing, which is inconvenient to operate and can easily cause food to spoil due to air trapped inside the bags.

Method used

A food bag sealing device was designed, comprising a sealing machine, an air extraction device, and a sealing strip. The air extraction device extracts air from the food bag using a cylinder and an air pump, and then heat seals it using the sealing strip.

Benefits of technology

It automates the process of venting and sealing food bags, preventing the accumulation of large amounts of air inside the bags and thus preventing food spoilage.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a food bag sealing device, and relates to the technical field of food packaging, the food bag sealing device comprises a sealing machine, the sealing machine is placed on a table top to provide support for the whole, one side of the sealing machine is provided with an opening, two connecting lines are fixedly connected in the sealing machine, one end of each connecting line is connected with a packaging strip, and the other end of each connecting line is connected with a sealing cover. Wherein the two packaging strips can conduct heat sealing on a food bag, the air extracting device is installed in the sealing machine and can extract air in the packaging bag, the air extracting device comprises an air cylinder, the air cylinder is fixedly connected to the interior of the sealing machine, the output end of the air cylinder is fixedly connected with an air extracting pump, and the air extracting pump is fixedly connected with the sealing machine. According to the food packaging machine, the effect of exhausting air in the packaging bag is achieved through the air exhausting device, and the situation that a large amount of air is stored in the food bag, and consequently food goes bad is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to food packaging technical field especially relates to a food bag sealing device. BACKGROUND

[0002] Food bag sealing machine is used for sealing food bag to make food in food bag can be sealed and kept, which usually includes large food bag sealing machine and small food bag sealing machine; since small food bag sealing machine is convenient to move and carry, it is used in family, workshop and other places.

[0003] The existing technology food bag is packaged, and a large amount of air exists in the inside of the food bag, which is not conducive to the storage of food, and often needs manual pressing to exhaust the food bag, and then the food bag can be sealed, which is not convenient when sealing. UTILITY MODEL CONTENTS

[0004] The utility model discloses a food bag sealing device to solve the shortcoming in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a food bag sealing device, including sealing machine, the sealing machine is placed on the desktop and provides support to the whole, the opening is set up in the one side of sealing machine, two The connecting line is fixedly connected in the inside of sealing machine, one end of connecting line is connected with the encapsulation strip, and the two encapsulation strips can heat seal the food bag, the air extraction device is installed in the inside of sealing machine, and the air extraction device can extract the air in the inside of the encapsulation bag.

[0006] The effect reached by the above-mentioned components is that when the food bag is sealed, the staff inserts the food bag into the opening of the sealing machine, the air extraction device extracts the air in the food bag, and then the connecting line heats the encapsulation strip, and the encapsulation strip heat seals the food bag.

[0007] Preferably, the air extraction device includes a cylinder, the cylinder is fixedly connected in the inside of the sealing machine, the output end of the cylinder is fixedly connected with the air extraction pump, and the air extraction pump is fixedly connected with the air extraction pipe at the air inlet end, wherein the air extraction pipe is located in the middle of the two encapsulation strips and can pass through the opening.

[0008] The effect reached by the above-mentioned components is that when the food bag is sealed, the staff inserts the food bag into the opening of the sealing machine, the air extraction device extracts the air in the food bag, and then the connecting line heats the encapsulation strip, and the encapsulation strip heat seals the food bag.

[0009] Preferably, the cross section of the air extraction pipe is duckbill-shaped, wherein the flat end of the air extraction pipe is away from the air extraction pump.

[0010] The effect achieved by the above component is that the duckbill-shaped air extraction pipe is convenient to remove from the packaging bag, improving the practicability of the air extraction pipe.

[0011] Preferably, one end of the air extraction pump is fixedly connected with an exhaust pipe, one end of the exhaust pipe is located outside the sealing machine, and the exhaust pipe is a collapsible wave pipe.

[0012] The effect achieved by the above component is that the exhaust pipe is convenient for the air extraction pump to exhaust gas from the sealing machine.

[0013] Preferably, the circular surface of the connecting line is sleeved with a fixing ring, and the fixing ring is fixedly connected with the sealing machine by means of a supporting rod.

[0014] The effect achieved by the above component is that the fixing ring achieves the effect of limiting the connecting line, avoiding the disengagement of the connecting line from the sealing machine.

[0015] Preferably, the air extraction device further comprises a screw rod, wherein the circular surface of the screw rod is provided with mutually symmetrical reverse threads, the screw rod is threadedly connected with two sealing strips, a plurality of slave gears are rotatably connected inside the sealing machine, one of the slave gears is fixedly connected with the screw rod, one side of the slave gear is fixedly connected with a main gear, the supporting plate is fixedly connected to one side of the air extraction pump, the other end of the supporting plate is fixedly connected with a rack, and the rack is meshed with the main gear.

[0016] The effect achieved by the above component is that when the air cylinder moves with the air extraction pump, the supporting plate and the rack move together with the air extraction pump, the rack rotates with the main gear and the slave gear, the screw rod rotates, and the screw rod moves the two sealing strips close to each other. When the air extraction pipe is extracted from the packaging bag, the two sealing strips are just moved to the surface of the packaging bag, and the sealing strips heat seal the packaging bag.

[0017] Preferably, one end of the two sealing strips is slidably inserted with the same limiting rod, and the two ends of the limiting rod are fixedly connected with the inner wall of the sealing machine.

[0018] The effect achieved by the above component is that the limiting rod achieves the effect of limiting the sealing strip, avoiding the shaking of the sealing strip.

[0019] Preferably, one side of the supporting plate is fixedly connected with a triangular plate, and one side of the triangular plate is fixedly connected with the air extraction pump.

[0020] The effect achieved by the above component is that the triangular plate improves the contact area between the supporting plate and the air extraction pump, thereby improving the stability of the supporting plate.

[0021] In summary, the beneficial effects of the utility model are:

[0022] When the packaging bag is heat sealed, the air extraction pipe is inserted into the inside of the packaging bag, the air extraction pump is opened, the air extraction pump extracts the air in the inside of the packaging bag through the air extraction pipe, then the air cylinder is opened, the air cylinder moves together with the air extraction pump and the air extraction pipe, the air extraction pipe is moved out of the packaging bag, and the two sealing strips heat seal the packaging bag, so that the air extraction effect of the packaging bag is achieved through the air extraction device, the inside of the food bag is prevented from storing a large amount of air, and the food is prevented from deteriorating. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is a sectional view of the utility model; Figure 1

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the air extraction device of the utility model;

[0026] Figure 4 It is an enlarged view of A of the utility model; Figure 3

[0027] Figure 5 It is another schematic diagram of the three-dimensional structure of the utility model; Figure 3

[0028] Legend: 1, sealing machine; 2, opening; 3, connecting line; 4, sealing strip; 5, air extraction device; 51, air cylinder; 52, air extraction pump; 53, air extraction pipe; 54, exhaust pipe; 55, fixing ring; 56, support plate; 57, rack; 58, main gear; 59, pinion; 510, screw rod; 511, limiting rod; 512, triangular plate. DETAILED DESCRIPTION

[0029] Referring to the drawings, the embodiment discloses a food bag sealing device, which comprises a sealing machine 1, the sealing machine 1 is placed on a desktop to provide support for the whole, and an opening 2 is formed in one side of the sealing machine 1; two connecting lines 3 are fixedly connected in the inside of the sealing machine 1, one end of the connecting line 3 is connected with a sealing strip 4, and the two sealing strips 4 can heat seal food bags; and an air extraction device 5 is installed in the inside of the sealing machine 1, and the air extraction device 5 can extract air in the inside of the sealing bag. Figures 1-5 When the food bag is sealed, the staff inserts the food bag into the opening 2 of the sealing machine 1, the air extraction device 5 extracts the air in the inside of the food bag, then the sealing strip 4 is heated through the connecting line 3, and the food bag is heat sealed by the sealing strip 4. ​​​

[0030] Referring to Figures 1-5 As shown in the drawings, the air extraction device 5 comprises a cylinder 51 fixedly connected to the inside of the sealing machine 1, the output end of the cylinder 51 is fixedly connected with an air extraction pump 52, the air inlet end of the air extraction pump 52 is fixedly connected with an air extraction pipe 53, wherein the air extraction pipe 53 is located in the middle of the two packaging strips 4 and can pass through the opening 2. When the packaging bag is heat sealed, the air extraction pipe 53 is inserted into the inside of the packaging bag, the air extraction pump 52 is turned on, the air extraction pump 52 extracts the air in the inside of the packaging bag through the air extraction pipe 53, then the cylinder 51 is turned on, the cylinder 51 moves together with the air extraction pump 52 and the air extraction pipe 53, the air extraction pipe 53 is removed from the packaging bag, the two packaging strips 4 heat seal the packaging bag, and the air extraction device 5 achieves the effect of air extraction of the packaging bag, avoiding the case that a large amount of air is stored in the inside of the food bag, so that the food deteriorates.

[0031] Referring to Figures 1-5 As shown in the drawings, the cross section of the air extraction pipe 53 is duckbill-shaped, wherein the flat mouth end of the air extraction pipe 53 is away from the air extraction pump 52. By setting the duckbill-shaped air extraction pipe 53, the air extraction pipe 53 is convenient to remove from the packaging bag, and the practicability of the air extraction pipe 53 is improved. One end of the air extraction pump 52 is fixedly connected with an exhaust pipe 54, one end of the exhaust pipe 54 is located on the outside of the sealing machine 1, wherein the exhaust pipe 54 is a collapsible wave pipe. By setting the exhaust pipe 54, the air extraction pump 52 is convenient to exhaust the gas out of the sealing machine 1. The circular arc surface of the connecting line 3 is sleeved with a fixed ring 55, wherein the fixed ring 55 is fixedly connected with the sealing machine 1 by means of a supporting rod. By setting the fixed ring 55, the effect of limiting the connecting line 3 is achieved, avoiding the case that the connecting line 3 is separated from the sealing machine 1.

[0032] Referring to Figures 1-5 As shown in the drawings, the air extraction device 5 further comprises a screw rod 510, wherein the circular arc surface of the screw rod 510 is provided with mutually symmetrical reverse threads, the screw rod 510 is threadedly connected with the two packaging strips 4; a plurality of pinion gears 59 are rotationally connected to the inside of the sealing machine 1, wherein the plurality of pinion gears 59 are mutually meshed, one of the pinion gears 59 is fixedly connected with the screw rod 510, and one side of the pinion gear 59 is fixedly connected with a main gear 58; a support plate 56 is fixedly connected to one side of the air extraction pump 52, and the other end of the support plate 56 is fixedly connected with a rack 57, wherein the rack 57 is meshed with the main gear 58. When the cylinder 51 moves together with the air extraction pump 52, the support plate 56 and the rack 57 move together with the air extraction pump 52, the rack 57 rotates together with the main gear 58 and the pinion gears 59, the screw rod 510 rotates, and the screw rod 510 moves the two packaging strips 4 closer to each other, when the air extraction pipe 53 is extracted from the packaging bag, the two packaging strips 4 are just moved to the surface of the packaging bag, and the packaging strips 4 heat seal the packaging bag.

[0033] Referring to Figures 1-5As shown, one end of the two packaging strips 4 is slidingly provided with the same limiting rod 511, and the two ends of the limiting rod 511 are fixedly connected with the inner wall of the sealing machine 1. By arranging the limiting rod 511, the packaging strip 4 is limited, and the packaging strip 4 is prevented from shaking. One side of the supporting plate 56 is fixedly connected with the triangular plate 512, and one side of the triangular plate 512 is fixedly connected with the air pump 52. By arranging the triangular plate 512, the contact area between the supporting plate 56 and the air pump 52 is increased, and the stability of the supporting plate 56 is improved.

[0034] Working principle: when sealing the food bag, the worker inserts the food bag into the opening 2 of the sealing machine 1, the air pipe 53 is inserted into the inside of the packaging bag, the air pump 52 is opened, the air pump 52 removes the air in the packaging bag through the air pipe 53, the exhaust pipe 54 exhausts the air from the sealing machine 1, then the air cylinder 51 is opened, the air cylinder 51 moves together with the air pump 52 and the air pipe 53, the supporting plate 56 and the rack 57 move together with the air pump 52, the rack 57 rotates together with the main gear 58 and the pinion 59, the screw rod 510 rotates, the screw rod 510 moves the two packaging strips 4 close to each other, the limiting rods 511 at both ends of the packaging strips 4 achieve the stability of the movement of the packaging strips 4, when the air pipe 53 is pulled out of the packaging bag, the two packaging strips 4 are just moved to the surface of the packaging bag, then the packaging strips 4 are heated through the connecting line 3, the packaging strips 4 heat seal the food bag, the duck-billed air pipe 53 is removed from the packaging bag, and the two packaging strips 4 heat seal the packaging bag, and the air in the packaging bag is removed through the air extraction device 5, so that the food bag is prevented from storing a large amount of air, thereby preventing the food from deteriorating.

Claims

1. A food bag closure device, characterized by: The utility model provides a sealing machine, the sealing machine (1) is placed on the desktop and provides support as a whole, and the opening (2) is arranged on one side of the sealing machine (1); Two connecting lines (3) are fixedly connected in the sealing machine (1), one end of the connecting line (3) is connected with the packaging strip (4), and the two packaging strips (4) can heat seal the food bag; The air extraction device (5) is installed in the sealing machine (1), and the air extraction device (5) can extract the air in the packaging bag.

2. A food bag closure device according to claim 1, wherein: The air extraction device (5) comprises a cylinder (51) fixedly connected in the sealing machine (1), an air extraction pump (52) fixedly connected to the output end of the cylinder (51), an air extraction pipe (53) fixedly connected to the air inlet end of the air extraction pump (52), wherein the air extraction pipe (53) is located in the middle of the two packaging strips (4) and can pass through the opening (2).

3. A food bag closure device according to claim 2, wherein: The cross section of the air extraction pipe (53) is duckbill-shaped, and the flat end of the air extraction pipe (53) is away from the air extraction pump (52).

4. A food bag closure device according to claim 2, wherein: One end of the air extraction pump (52) is fixedly connected with an exhaust pipe (54), one end of the exhaust pipe (54) is located outside the sealing machine (1), and the exhaust pipe (54) is a collapsible wave pipe.

5. A food bag closure device according to claim 2, wherein: The circular arc surface of the connecting line (3) is sleeved with a fixing ring (55), and the fixing ring (55) is fixedly connected to the sealing machine (1) by means of a supporting rod.

6. A food bag closure device according to claim 2, wherein: The air extraction device (5) further comprises a screw rod (510), wherein the circular arc surface of the screw rod (510) is provided with mutually symmetrical reverse threads, and the screw rod (510) is threadedly connected with the two packaging strips (4); A plurality of slave gears (59) are rotatably connected in the sealing machine (1), wherein the plurality of slave gears (59) are meshed with each other, one of the slave gears (59) is fixedly connected with the screw rod (510), and one of the slave gears (59) is fixedly connected with a main gear (58) on one side; A supporting plate (56) is fixedly connected to one side of the air extraction pump (52), and the other end of the supporting plate (56) is fixedly connected with a rack (57), wherein the rack (57) is meshed with the main gear (58).

7. A food bag closure device according to claim 6, wherein: One end of the two packaging strips (4) is slidably inserted with the same limiting rod (511), and the two ends of the limiting rod (511) are fixedly connected with the inner wall of the sealing machine (1).

8. A food bag closure device according to claim 6, wherein: One side of the supporting plate (56) is fixedly connected with a triangular plate (512), and one side of the triangular plate (512) is fixedly connected with the air extraction pump (52).