Packaging bag processing leakage-proof detection device

By designing a packaging bag processing leak detection device and using a cable tie machine and air pump system to test the sealing of packaging bags, the problem of testing packaging bags of different sizes was solved and fast and accurate sealing detection was achieved.

CN223361710UActive Publication Date: 2025-09-19ZHIJIANG CHUTIAN PLASTIC CO LTD
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Patent Information

Application Number
CN202422824589.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-09-19
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

It is inconvenient to perform leakage detection on fertilizer packaging bags of different sizes in the prior art.

Method used

A packaging bag processing leakage detection device is designed. The packaging bag is fastened with a cable tie machine, and gas is injected into the air bag by an air pump to expand the air bag and squeeze the open end of the packaging bag. Combined with a pressure plate, it is detected whether the packaging bag is leaking, thereby realizing the sealing detection of packaging bags of different sizes.

Benefits of technology

It realizes fast and effective sealing detection of packaging bags of different sizes, and improves detection efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223361710U_ABST
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Abstract

The utility model relates to the technical field of chemical fertilizer packaging bags, in particular to a packaging bag processing leakage-proof detection device which comprises a workbench, a base is fixedly installed at the bottom of the workbench, a connecting frame is detachably installed in the base through bolts, and a second air pump is fixedly installed in the connecting frame. An air injection nozzle is fixedly installed in the upper end of the connecting frame and connected with the second air pump through a guide pipe, a sealing gasket is fixedly installed on the surface of the outer side of the connecting frame, the interior of the sealing gasket is made of a rubber structure, and the outer side of the sealing gasket is wrapped with a binding belt. The packaging bag processing leakage-proof detection device can detect the air tightness of the packaging bag and is worthy of popularization.
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Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer packaging bags, in particular to a packaging bag processing anti-leakage detection device. Background Art

[0002] During the processing of fertilizer bags, to ensure the preservation of the fertilizer, they must have good sealing properties. Therefore, a leak detection device is required to test the airtightness of the fertilizer bags. Since the sizes of bags used for different types of fertilizers may vary, leak detection is not convenient for bags of different sizes. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcoming in the prior art that it is inconvenient to perform leakage detection on packaging bags of different sizes, and to propose a packaging bag processing leakage detection device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A packaging bag processing leakage detection device is designed, including a workbench, a base is fixedly installed at the bottom of the workbench, a connecting frame is detachably installed inside the base by bolts, a second air pump is fixedly installed inside the connecting frame, an air injection nozzle is fixedly installed inside the upper end of the connecting frame, the air injection nozzle is connected to the second air pump through a conduit, a sealing gasket is fixedly installed on the outer surface of the connecting frame, the interior of the sealing gasket is made of a rubber structure, and the outside of the sealing gasket is wrapped with a cable tie.

[0006] Preferably, an air bag is fixedly mounted on the inner side of the upper end of the base, a first air pump is fixedly mounted on the outer side of the base, and the air bag is connected to the first air pump via a conduit.

[0007] Preferably, a groove is provided on the outer surface of the connecting frame, a flexible ring is fixedly installed inside the groove, and the inside of the flexible ring is made of sponge.

[0008] Preferably, the number of the flexible rings is the same as that of the cable ties, and at least two of each are provided.

[0009] Preferably, the flexible ring is coaxially arranged with the cable tie, and the height of the flexible ring along the axial direction is greater than the height of the cable tie along the axial direction.

[0010] Preferably, an elastic portion is fixedly installed inside the sealing gasket, and the elastic portion is located between the flexible ring and the cable tie.

[0011] Preferably, a telescopic rod is fixedly installed on the top of the workbench, and a pressure plate is fixedly installed on the lower end of the telescopic rod.

[0012] The utility model proposes a packaging bag processing leakage detection device, which has the beneficial effect that: during the operation of the packaging bag processing leakage detection device, the cable tie can be tied to the outside of the packaging bag by the cable tie machine, so that the packaging bag can be tightly tied to the outside of the sealing gasket, and packaging bags of different sizes can be tightened. The cable tie can be tightened to squeeze the flexible ring by the elastic part, and the flexible ring can be deformed by being squeezed, so that the contact between the packaging bag and the sealing gasket can be closer. Gas can be injected into the airbag by the first air pump, and the inflated airbag can tightly squeeze the open end of the packaging bag, which can further improve the sealing between the open end of the packaging bag and the sealing gasket. The second air pump can inject air into the packaging bag through the air injection nozzle to make the packaging bag completely inflated. The leakage prevention effect can be detected by observing whether the packaging bag is deflated by pressing the pressure plate, thereby reducing the detection time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of a packaging bag processing leak detection device proposed by the utility model;

[0014] Figure 2 This is a structural schematic diagram of a connecting frame in a packaging bag processing leak detection device proposed by the present invention;

[0015] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0016] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0017] In the figure: 1. workbench; 2. base; 3. connecting frame; 4. groove; 5. flexible ring; 6. sealing gasket; 7. elastic part; 8. cable tie; 9. airbag; 10. first air pump; 11. second air pump; 12. air injection nozzle; 13. telescopic rod; 14. pressure plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1: Reference Figure 1-4A packaging bag processing leak detection device includes a workbench 1. A base 2 is fixedly mounted at the bottom of the workbench 1. A connecting frame 3 is detachably mounted inside the base 2 via bolts. The connecting frame 3 is easily disassembled from the base 2, allowing for convenient maintenance and inspection of the interior of the connecting frame 3. A second air pump 11 is fixedly mounted inside the connecting frame 3. A gas injection nozzle 12 is fixedly mounted on the upper end of the connecting frame 3. The gas injection nozzle 12 is connected to the second air pump 11 via a conduit. When the second air pump 11 is activated, gas can be injected into the interior of the packaging bag through the gas injection nozzle 12, thereby enabling the airtightness of the interior of the packaging bag to be tested.

[0020] A sealing gasket 6 is fixedly installed on the outer surface of the connecting frame 3. The interior of the sealing gasket 6 is made of a rubber structure. The packaging bag is set on the outside of the sealing gasket 6. The outside of the sealing gasket 6 is wrapped with a cable tie 8. The cable tie 8 can be a latch-type nylon cable tie. The cable tie 8 is wrapped on the outside of the packaging bag. The excess opening of the packaging bag can be folded and the cable tie 8 can also be used to tighten it. Packaging bags of different sizes can be tightened. When the cable tie 8 is tightened, the packaging bag will be tightened to the outside of the sealing gasket 6. Under the tightening action of the cable tie 8, the packaging bag will be in close contact with the sealing gasket 6. The sealing gasket 6 will be deformed, which can ensure that the opening of the packaging bag maintains good sealing.

[0021] An airbag 9 is fixedly installed on the inner side of the upper end of the base 2, and a first air pump 10 is fixedly installed on the outside of the base 2. The airbag 9 and the first air pump 10 are connected through a catheter. When the first air pump 10 is started, air can be blown into the airbag 9 through the catheter, and the airbag 9 will expand. The expanded airbag 9 will wrap the open end of the packaging bag, which can improve the surface sealing between the open end of the packaging bag and the sealing gasket 6.

[0022] A groove 4 is provided on the outer surface of the connecting frame 3, and the groove 4 is arranged around the connecting frame 3. A flexible ring 5 is fixedly installed inside the groove 4. The inside of the flexible ring 5 is made of sponge. The number of flexible rings 5 ​​is the same as that of the cable tie 8 and at least two are provided. The flexible ring 5 is not connected to the cable tie 8. The flexible ring 5 and the cable tie 8 are coaxially arranged. The height of the flexible ring 5 along the axial direction is greater than the height of the cable tie 8 along the axial direction. The sealing gasket 6 is provided with an elastic part 7 fixedly installed inside, and the elastic part 7 is located between the flexible ring 5 and the cable tie 8. The elastic part 7 is an elastic structure. When the cable tie 8 is tightened on the outside of the sealing gasket 6, the cable tie 8 will squeeze the sealing gasket 6 and the elastic part 7. The elastic part 7 will be deformed by the squeezing, and the cable tie 8 will tighten the flexible ring 5 through the elastic part 7, and the flexible ring 5 will be squeezed and concave. Since the width of the elastic part 7 is smaller than the width of the cable tie 8, when the cable tie 8 is tightened on the outside of the elastic part 7, the cable tie 8 can not only completely wrap the elastic part 7, but also the cable tie 8 will be in close contact with the sealing gasket 6, which can ensure the sealing between the cable tie 8 and the sealing gasket 6, thereby improving the sealing between the packaging bag and the sealing gasket 6. By providing multiple groups of cable ties 8, sealing gaskets 6 and elastic parts 7, the sealing between the sealing gasket 6 and the packaging bag can be further improved.

[0023] A telescopic rod 13 is fixedly installed on the top of the workbench 1, and a pressure plate 14 is fixedly installed at the lower end of the telescopic rod 13. Starting the telescopic rod 13 can drive the pressure plate 14 to move up and down. When gas rushes into the packaging bag and it is completely inflated, the pressure plate 14 moves down to squeeze the packaging bag, which can detect the range of pressure that the packaging bag can withstand after being sealed. Moreover, if the inside of the packaging bag is in an unsealed state, the packaging bag will become deflated after the pressure plate 14 squeezes the packaging bag for a period of time, which can speed up the air tightness detection.

[0024] Working principle: During the operation of the packaging bag processing and leak-proof detection device, the open end of the packaging bag is put on the outside of the connecting frame 3, and the cable tie 8 is first tied to the outside of the packaging bag through the cable tie machine, so that the packaging bag is tightly tied to the outside of the sealing gasket 6. Packaging bags of different sizes can be tightened. The cable tie 8 will squeeze the flexible ring 5 through the tightening elastic part 7. The flexible ring 5 will be deformed by the squeezing, making the contact between the packaging bag and the sealing gasket 6 tighter. Then the first air pump 10 is started to inject gas into the airbag 9, and the airbag 9 will expand. The expanded airbag will tightly squeeze the open end of the packaging bag, which can further improve the sealing effect at the open end of the packaging bag. The second air pump 11 is started, and the second air pump 11 will inject air into the packaging bag through the air injection nozzle 12. The packaging bag will expand until it is completely inflated. At this time, the air pressure inside the packaging bag is kept unchanged, and the telescopic rod 13 is started to drive the pressure plate 14 to move downward. The pressure plate 14 moves downward to press the packaging bag. When the pressure plate 14 always maintains a certain pressure to press the packaging bag, if there is air leakage inside the packaging bag, the packaging bag will gradually deflate. If there is no air leakage inside the packaging bag, the packaging bag will not deflate. The pressing of the pressure plate 14 can reduce the time of leak prevention detection and make it more convenient to observe the detection results.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A packaging bag processing leak detection device, comprising a workbench (1), characterized in that: A base (2) is fixedly mounted on the bottom of the workbench (1); a connecting frame (3) is detachably mounted inside the base (2) via bolts; a second air pump (11) is fixedly mounted inside the connecting frame (3); an air injection nozzle (12) is fixedly mounted inside the upper end of the connecting frame (3); the air injection nozzle (12) is connected to the second air pump (11) via a conduit; a sealing gasket (6) is fixedly mounted on the outer surface of the connecting frame (3); the interior of the sealing gasket (6) is made of a rubber structure, and the outer side of the sealing gasket (6) is wrapped with a cable tie (8).

2. The packaging bag processing leak detection device according to claim 1, characterized in that: An air bag (9) is fixedly mounted on the inner side of the upper end of the base (2), and a first air pump (10) is fixedly mounted on the outside of the base (2). The air bag (9) and the first air pump (10) are connected via a conduit.

3. The packaging bag processing leakage detection device according to claim 1, characterized in that: A groove (4) is provided on the outer surface of the connecting frame (3), a flexible ring (5) is fixedly installed inside the groove (4), and the inside of the flexible ring (5) is made of sponge.

4. The packaging bag processing leakage detection device according to claim 3, characterized in that: The number of the flexible rings (5) is the same as that of the cable ties (8), and at least two of each are provided.

5. The packaging bag processing leak detection device according to claim 4, characterized in that: The flexible ring (5) and the cable tie (8) are coaxially arranged, and the height of the flexible ring (5) in the axial direction is greater than the height of the cable tie (8) in the axial direction.

6. The packaging bag processing leak detection device according to claim 5, characterized in that: An elastic portion (7) is fixedly installed inside the sealing gasket (6), and the elastic portion (7) is located between the flexible ring (5) and the cable tie (8).

7. The packaging bag processing leak detection device according to claim 1, characterized in that: A telescopic rod (13) is fixedly mounted on the top of the workbench (1), and a pressing plate (14) is fixedly mounted on the lower end of the telescopic rod (13).