Inflatable filling bag and roll film thereof

Abstract

The utility model relates to the field of inflatable filling bags, in particular to an inflatable filling bag and a roll film thereof, which comprise a bag body, an air chamber for filling air is formed in the bag body, one end of the bag body is provided with an air inlet channel for an inflating nozzle to penetrate through, and the air inlet channel is communicated and extends along two sides of the bag body. A through hole is formed in the end, extending towards the outer side of the bag body, of the air inlet channel, one end of the air inlet channel extends into the bag body and communicates with the air chamber through the air inlet, a limiting part is arranged at the end, close to the air inlet channel, of the bag body, and a limiting gap used for being matched with the air nozzle is formed between the limiting part and the air inlet channel. According to the utility model, through the arrangement of the limiting part and the limiting gap, the inflation transmission efficiency of the bag body is improved, so that the phenomenon that the surface of the bag body is punctured and damaged due to the shaking of the film bag body in the transmission process is reduced; and the reliability and the stability of the inflatable filling bag during inflation are improved.

Description

Technical Field

[0001] This utility model relates to the field of inflatable filling bags, specifically to an inflatable filling bag and its roll film. Background Technology

[0002] Inflatable filler bags, also known as air bags, paper air pillows, or inflatable roll film, are typically made of continuous bag bodies forming an inflatable roll film. Adjacent bags have die-cut tear lines between them. Inflatable filler bags are widely used in various fields requiring protective and cushioning packaging. These include, but are not limited to, packaging and transporting fragile or sensitive items such as electronic products, glass and ceramic products, and daily necessities. Furthermore, the materials used for these filler bags are not limited to various films or kraft paper combined with other film types. Their main function is to create a buffer chamber by inflating the bag, using the cushioning effect of air to absorb impacts during transportation, thereby protecting the contents.

[0003] However, the existing structural design of inflatable filling bags still has some obvious defects. Among them, the air inlet of the existing filling bag is directly connected to the internal gas containing chamber. This causes the filling bag to shake and shift during the inflation process using an inflator. It can also cause the air inlet of the filling bag to fold, which affects the passage of the air inlet and may even cause the air inlet to puncture the film. This can not only damage the filling bag, but also seriously affect the inflation efficiency and performance. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned defects and provide an inflatable filling bag and its roll film, so as to solve the technical problem that existing inflatable filling bags are prone to folding, breaking and damage during the inflation process of an inflator, thereby affecting inflation efficiency and use effect.

[0005] The objective of this utility model is achieved through the following means:

[0006] An inflatable filling bag includes a bag body, characterized in that: an air chamber for filling with gas is formed inside the bag body; an air inlet channel for inserting an inflation nozzle is provided at one end of the bag body; the air inlet channel extends along both sides of the bag body; a through hole is formed at the end of the air inlet channel extending outward from the bag body; one end of the air inlet channel extends into the bag body and communicates with the air chamber through an air inlet; the air inlet is connected to the air inlet channel and the air chamber; a limiting part is provided at the end of the bag body near the air inlet channel; the limiting part is formed at the end of the bag body near the air inlet channel; and a limiting gap is formed between the limiting part and the air inlet channel for matching the inflation nozzle, so that the limiting gap is used to limit and guide the inflation nozzle.

[0007] Furthermore, as described above, the bag body includes a first bag sheet and a second bag sheet disposed opposite to each other, and the first bag sheet and the second bag sheet are connected by heat sealing.

[0008] The first and second bag sheets, connected by heat sealing, form a double-layer structure, which significantly enhances the overall sealing, structural strength, and inflation smoothness of the bag, effectively preventing problems such as bag rupture, leakage, or film breakage caused by pressure changes during inflation.

[0009] Furthermore, as described above, a limiting part is formed between the first bag sheet and the second bag sheet by hot pressing.

[0010] The limiting part is directly formed on the end of the bag body through a hot-pressing process. The limiting gap formed between it and the air inlet channel is used to limit the inflation nozzle, preventing the air inlet from folding or the bag film from being punctured due to nozzle shaking or displacement during inflation. This structure ensures precise alignment between the inflation nozzle and the air inlet channel through physical limiting, avoiding inflation interruption and improving the stability and safety of the inflation operation.

[0011] Furthermore, as described above, the side of the bag body is heat-sealed to form a sealing end, which includes a first sealing edge, a second sealing edge, a third sealing edge, and a fourth sealing edge. The first sealing edge, the second sealing edge, and the third sealing edge are connected in sequence, and the fourth sealing edge is arranged opposite to the second sealing edge, and the fourth sealing edge forms a limiting guide edge for limiting the air nozzle.

[0012] The fourth sealing edge serves as a limiting guide edge, matching the outer contour of the air blowing device of the inflation machine. Through the pairing of the limiting part, it can accurately guide the insertion of the inflation nozzle, avoiding damage to the bag film due to nozzle misalignment, while reducing the difficulty of manual alignment and improving inflation efficiency.

[0013] Furthermore, as described above, the first sealing edge, the second sealing edge, and the third sealing edge are connected in sequence to form a "U" shape.

[0014] The "U"-shaped sealing edge structure (first, second, and third sealing edges) forms a three-dimensional sealing barrier through multiple heat seals.

[0015] A roll film includes two or more inflatable filling bags, with the sides of two adjacent inflatable filling bags connected by heat pressing, and a tear line is provided between two adjacent bags by die cutting.

[0016] The system includes several inflatable filling bags, which are wound together by a winding machine to form a roll of film. The tear line design allows multiple bags to be produced continuously in roll form. When in use, individual bags can be quickly torn apart along the preset tear line, maintaining the overall convenience of transporting and storing the roll film while avoiding material waste from individually packaging each bag.

[0017] This structure is compatible with automated inflation equipment, which inflates the air chambers via the inflation machine, enabling efficient and continuous operation, reducing manual intervention, and significantly improving operational convenience and production efficiency in mass production scenarios.

[0018] Furthermore, as described above, the air intake channels of the two adjacent inflatable filling bags are interconnected.

[0019] The beneficial effects of this utility model are as follows: By setting a limiting part on the bag body, a limiting gap is formed between the limiting part and the air inlet channel to limit and guide the air nozzle. When the bag body is transported and inflated by the inflator, the limiting part prevents the air nozzle from penetrating into the air chamber and prevents the bag body from shaking relative to each other. At the same time, the setting of the limiting gap improves the efficiency of bag inflation and transmission, thereby reducing the phenomenon of puncture damage to the bag surface caused by shaking during the transmission of the film bag, and improving the reliability and stability of inflation of the inflatable filling bag.

[0020] Multiple inflatable filling bags are wound together to form a roll film. As the film is continuously unwound by the inflator, the inflator's nozzles inflate the conveyed inflatable filling bags in sequence, thereby improving inflation efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the inflatable filling bag in this embodiment;

[0022] Figure 2 This is a schematic diagram of the roll film structure in this embodiment;

[0023] The reference numerals in the figure are as follows: 100-bag body, 101-air chamber, 102-air inlet channel, 103-through hole, 104-air inlet, 105-limiting part, 106-limiting gap, 107-first sealing edge, 108-second sealing edge, 109-third sealing edge, 110-fourth sealing edge, 111-tear line. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] In this embodiment, refer to Figures 1-2The invention specifically implements an inflatable filling bag, comprising a bag body 100, characterized in that: an air chamber 101 for filling with gas is formed inside the bag body 100; an air inlet channel 102 for inserting an inflation nozzle is provided at one end of the bag body 100; the air inlet channel 102 extends along both sides of the bag body 100; and a through hole 103 is formed at one end of the air inlet channel 102 extending outward from the bag body 100; and one end of the air inlet channel 102 extends inward from the bag body 100 and... The air inlet 104 is connected to the air chamber 101. The air inlet 104 is connected to the air intake channel 102 and the air chamber 101. A limiting part 105 is provided at the end of the bag body 100 near the air intake channel 102. The limiting part 105 is formed at the end of the bag body 100 near the air intake channel 102, and a limiting gap 106 is formed between the limiting part 105 and the air intake channel 102 for matching the air nozzle, so that the limiting gap 106 is used to limit and guide the air nozzle.

[0026] The bag body 100 includes a first bag piece and a second bag piece disposed opposite to each other, and the first bag piece and the second bag piece are connected by heat sealing. The first bag piece and the second bag piece connected by heat sealing form a double-layer structure, which significantly enhances the overall sealing performance and structural strength of the bag body 100, and effectively prevents the bag body 100 from rupturing or leaking air due to changes in air pressure during inflation.

[0027] In the specific implementation process, the material of the filling bag is not limited to various films or kraft paper combined with other films. In this embodiment, the bag body 100 is made of film.

[0028] A limiting part 105 is formed between the first bag sheet and the second bag sheet by hot pressing.

[0029] The limiting part 105 is directly formed on the end of the bag body 100 through a hot-pressing process, thereby forming a limiting gap 106 with the air inlet channel 102 to limit the inflation nozzle, preventing the air inlet 104 from folding, the film of the bag body 100 from being punctured, or the nozzle from passing through the tear line 111 due to the air nozzle shaking or displacement during inflation. This structure ensures precise alignment between the inflation nozzle and the air inlet channel 102 through physical limiting, avoiding inflation interruption and improving the stability and safety of the inflation operation.

[0030] The side of the bag body 100 is heat-sealed to form a sealing end, which includes a first sealing edge 107, a second sealing edge 108, a third sealing edge 109 and a fourth sealing edge 110. The first sealing edge 107, the second sealing edge 108 and the third sealing edge 109 are connected in sequence, and the fourth sealing edge 110 is arranged opposite to the second sealing edge 108, and the fourth sealing edge 110 forms a limiting guide edge for limiting the air nozzle.

[0031] The fourth sealing edge 110 serves as a limiting guide edge, matching the outer contour of the air blowing device of the air inflator. Through the pairing of the limiting part 105, it can accurately guide the insertion of the air nozzle, avoiding damage to the film of the bag 100 due to nozzle misalignment, while reducing the difficulty of manual alignment and improving inflation efficiency.

[0032] In the specific implementation process, the bag body 100 is heat-sealed to form an inflatable filling bag to be inflated. During the heat-sealing process, a first sealing edge 107, a second sealing edge 108, a third sealing edge 109, and a fourth sealing edge 110 are formed on the bag body 100. At the same time, an air inlet channel 102 and an air chamber 101 are formed inside the bag body 100. Under heat sealing, a limiting part 105 is formed between the air inlet channel 102 and the air chamber 101, which further improves the stability and reliability of the subsequent inflation and delivery process.

[0033] Alternatively, in other embodiments, the shape of the bag 100 may be polygonal or arc-shaped as required.

[0034] The first sealing edge 107, the second sealing edge 108, and the third sealing edge 109 are connected in sequence to form a "U" shape. The "U" shaped sealing edge structure (first, second, and third sealing edges 109) forms a three-dimensional sealing barrier through multiple heat seals.

[0035] Optionally, in some embodiments, the length of the limiting portion 105 can be heat-sealed as needed.

[0036] A roll film includes two or more inflatable filling bags, with the sides of two adjacent inflatable filling bags connected by heat pressing, and a tear line 111 is provided between two adjacent bag bodies 100 by die cutting.

[0037] Several inflatable filling bags are provided, and these bags are wound together by a winding machine to form a roll of film. The tear line 111 design allows multiple bags 100 to be produced continuously in the form of roll film. When in use, a single bag 100 can be quickly torn off along the preset tear line 111, which maintains the overall transportation and storage convenience of the roll film and avoids material waste from packaging individual bags 100 separately.

[0038] This structure is compatible with automated inflation equipment, which inflates the air chamber 101 through the inflation machine, enabling efficient and continuous operation, reducing manual intervention, and significantly improving the ease of operation and production efficiency in batch use scenarios.

[0039] The air inlet channels 102 of the two adjacent inflatable filling bags are interconnected.

[0040] The specific usage process in this embodiment is as follows:

[0041] Several inflatable filling bags are wound into a roll film, which is then placed on the unwinding roller of the inflator. The unwinding end of the roll film is inserted into the inflator, and the inflation nozzle of the inflator is inserted into the through hole 103 of the inflatable filling bag, thus entering the air inlet channel 102. The bag is then conveyed and unwound via the inflator's conveyor line. During the unwinding and conveying of the roll film, the inflatable filling bag guides and limits the inflation nozzle through the limiting gap 106. This prevents the inflation nozzle from penetrating the bag body 100 during inflation by the limiting part 105. The air inlet chamber 101 prevents relative shaking of the bag body 100. At the same time, the setting of the limiting part 105 and the limiting gap 106 improves the efficiency of the air inflation transmission of the bag body 100, thereby reducing the phenomenon of puncture damage to the surface of the bag body 100 caused by shaking during the transmission of the film bag body 100, and improving the reliability and stability of the inflatable filling bag for use. Through the film winding setting, under the continuous unwinding of the inflator, the air inflator nozzles of the inflator sequentially inflate the transmitted inflatable filling bags, improving the inflation efficiency.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An air-filled bag comprising a bag body, characterised in that: The inside of the bag body is formed with a gas chamber for filling gas, one end of the bag body is provided with an air inlet channel through which an air inlet nozzle can be arranged, the air inlet channel extends along both sides of the bag body, and the end of the air inlet channel extending to the outside of the bag body is formed with a through hole, the end of the air inlet channel extending to the inside of the bag body communicates with the gas chamber through an air inlet, the air inlet is in communication with the air inlet channel and the gas chamber, the end of the bag body close to the air inlet channel is provided with a limiting portion, the limiting portion is formed on the end of the bag body close to the air inlet channel, and a limiting gap for the air nozzle is formed between the limiting portion and the air inlet channel, so that the limiting gap is used for limiting and guiding the air nozzle.

2. An inflation bag according to claim 1, wherein: The bag body comprises a first bag sheet and a second bag sheet arranged opposite to each other, and the first bag sheet and the second bag sheet are connected by heat sealing.

3. An inflation bag according to claim 2, wherein: The limiting portion is formed between the first bag sheet and the second bag sheet by heat pressing.

4. An inflation bag according to any one of claims 1 to 3, wherein: The side edge of the bag body is formed with a sealing end by heat sealing, the sealing end comprises a first sealing edge, a second sealing edge, a third sealing edge and a fourth sealing edge, the first sealing edge, the second sealing edge and the third sealing edge are connected in sequence, the fourth sealing edge is arranged opposite to the second sealing edge, and the fourth sealing edge forms a limiting and guiding edge for limiting the air nozzle.

5. An inflation bag according to claim 4, wherein: The first sealing edge, the second sealing edge and the third sealing edge are connected in sequence to form a "U" shape.

6. A roll film characterized by, The air-filled bag comprises two or more air-filled bags according to any one of claims 1-5, and the side edges of adjacent two air-filled bags are connected by heat pressing, and the adjacent two bag bodies are provided with a tear line by die cutting.

7. The roll of film of claim 6, wherein: The air inlet channels of the adjacent two air-filled bags are in communication with each other.

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