An aluminum foil composite film packaging bag with high barrier performance

Abstract

The utility model relates to aluminium foil composite film packing bag high barrier technical field discloses a kind of aluminium foil composite film packing bags with high barrier property, including bag body, the top of bag body is fixedly connected with sealing piece in front and back side, the right side of front sealing piece is provided with flow control mechanism, the left side of bag body is fixedly connected with fixed mechanism in upper middle part;The flow control mechanism includes cylinder, the bottom of cylinder is connected with the top right side of corresponding sealing piece, rotating column is rotatably connected in the inside of cylinder, the top left side of rotating column is evenly provided with material conveying hole, the inner wall top left side of cylinder is fixedly connected with barrier plate one.

Description

Technical Field

[0001] This utility model relates to the field of high barrier technology for aluminum foil composite film packaging bags, and in particular to an aluminum foil composite film packaging bag with high barrier performance. Background Technology

[0002] Aluminum foil composite film packaging bags are flexible packaging containers made of multiple layers of different materials. Their core feature is the inclusion of an aluminum foil layer as a key barrier structure. Through the synergistic effect of multiple materials, they achieve efficient barrier against gases, moisture, light, and odors, thereby protecting the quality and stability of the contents.

[0003] As the food, pharmaceutical, and chemical industries increasingly demand higher standards for product shelf life, safety, and storage conditions, traditional packaging materials, with their poor barrier properties, are unable to block oxygen, moisture, and light, leading to easy oxidation, moisture absorption, and spoilage of the contents. Therefore, there is a need for aluminum foil composite film packaging bags with high barrier properties to extend the shelf life or storage period of the contents through the synergistic effect of multiple layers of materials.

[0004] Early aluminum foil packaging consisted of a simple bond between aluminum foil and a single-layer plastic film. The aluminum foil acted as a barrier layer, relying on its continuous metallic structure to block the penetration of gases and light. The single-layer plastic film provided basic flexibility and heat-sealing functionality. However, due to the low bonding strength between the aluminum foil and the plastic film, delamination was common during stretching or bending, compromising the integrity of the barrier layer. To address this issue, a multi-layered gradient composite structure was adopted, where each layer worked synergistically to achieve different effects and improve overall performance. However, in practical use, the single, straight opening of the bag, lacking flow control components, resulted in issues with excessive or insufficient powder being poured out. Furthermore, the excess contents could easily cause secondary contamination when poured back, failing to meet user needs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an aluminum foil composite film packaging bag with high barrier performance, which aims to improve the problem in the prior art where the bag opening is a single flat opening without flow control components, resulting in excessive or insufficient pouring during pouring.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum foil composite film packaging bag with high barrier performance, comprising a bag body, a sealing sheet fixedly connected to the top front and rear sides of the bag body, a flow control mechanism provided on the right side of the sealing sheet on the front side, and a fixing mechanism fixedly connected to the upper middle part of the left and right sides of the bag body.

[0007] The flow control mechanism includes a cylinder, the bottom of which is connected to the top right side of the corresponding sealing plate. A rotating column is rotatably connected inside the cylinder, and feeding holes are provided on the top left and right sides of the rotating column. A first baffle plate is fixedly connected to the top left side of the inner wall of the cylinder, and a second baffle plate is fixedly connected to the bottom right side of the inner wall of the cylinder. A rotating ring is rotatably connected to the top of the outer wall of the cylinder. A connecting pin is fixedly connected to the top of the rotating column, and a connecting rod is fixedly connected to the top of the connecting pin. The front and rear ends of the connecting rod are fixedly connected to the front and rear sides of the top of the inner wall of the rotating ring, respectively. A sealing assembly is provided at the top of the cylinder.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes two connecting blocks. The adjacent sides of the two connecting blocks are fixedly connected to the upper middle part of the left and right sides of the bag body, respectively. Rotating plates are rotatably connected to the front and rear sides of the two connecting blocks. One side of the multiple rotating plates is fixedly connected to the left and right sides of the bag body, respectively. Rotating rods are rotatably connected to the top rear side of the two front rotating plates. Fixing blocks are fixedly connected to the front ends of the opposite sides of the two rotating rods. Limiting pins are provided on the top of the two fixing blocks. The bottom ends of the two limiting pins pass through the top of the corresponding fixing blocks. Support fixing holes are provided on the top front side of the two rear rotating plates. Folding fixing holes are provided on the top rear side of the two rear rotating plates.

[0010] As a further description of the above technical solution:

[0011] The sealing assembly includes a cylinder cap, the lower part of the inner wall of the cylinder cap being threadedly connected to the upper part of the outer wall of the cylinder, and a sealing ring being fixedly connected to the top of the inner wall of the cylinder cap.

[0012] As a further description of the above technical solution:

[0013] The top of each of the two limiting pins is fixedly connected with a pull ring, and the bottom of each of the two limiting pins engages with the interior of the corresponding support fixing hole and folding fixing hole, respectively.

[0014] As a further description of the above technical solution:

[0015] An embedding strip is fixedly connected to the rear side of the front sealing sheet, and an embedding groove is provided on the front side of the rear sealing sheet.

[0016] As a further description of the above technical solution:

[0017] Both sealing pieces have grooves on the upper middle part of the opposite side, and the same slider is slidably connected to the left side of the inner wall of the two grooves.

[0018] As a further description of the above technical solution:

[0019] The top width of the two sealing pieces matches the inner width of the slider, and the rear side of the insert strip engages with the inside of the insert groove.

[0020] As a further description of the above technical solution:

[0021] Each of the four corners on the front side of the bag is fixedly connected with a locking block, and each of the four corners on the rear side of the bag is provided with a locking slot.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when the bag is tilted, the powder flows towards the cylinder due to gravity. The bottom of the feed hole on one side avoids the second baffle plate, and the powder flows into the feed hole to complete the filling. At the same time, the top of the feed hole is blocked by the first baffle plate. When the rotating column is rotated 90 degrees, the top of the feed hole filled with powder avoids the first baffle plate, and the bottom is blocked by the second baffle plate. The powder is discharged from the feed hole, while the feed hole on the other side is filled simultaneously. The feed holes alternately complete the feeding and discharging cycle, realizing precise flow control and avoiding the problem of flow control failure of a single straight opening.

[0024] 2. In this utility model, when it is necessary to keep the bag opening open, the two rotating plates are rotated to 180 degrees. The rotating plates on both sides extend horizontally and support the edge of the bag opening. The rotation of the rotating plates is restricted by the engagement of the limiting pin and the support fixing hole, thus forming support and counteracting the soft contraction force of the bag body to prevent the bag opening from collapsing. When it is necessary to close the bag opening, the rotating plates on the front and rear sides are folded together, and the limiting pin engages with the folding fixing hole to keep the rotating plates in a folded state. The restraint effect of the rotating plates prevents the bag opening from opening accidentally. Attached Figure Description

[0025] Figure 1 This is a perspective view of an aluminum foil composite film packaging bag with high barrier properties proposed in this utility model;

[0026] Figure 2 This is a front view of an aluminum foil composite film packaging bag with high barrier properties proposed in this utility model;

[0027] Figure 3 A dissected view of the cylinder of an aluminum foil composite film packaging bag with high barrier properties proposed in this utility model;

[0028] Figure 4 A cross-sectional view of the cap of an aluminum foil composite film packaging bag with high barrier properties proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a rotating plate for an aluminum foil composite film packaging bag with high barrier properties proposed in this utility model.

[0030] Figure 6 This is a split view of the sealing sheet of an aluminum foil composite film packaging bag with high barrier properties proposed in this utility model.

[0031] Legend:

[0032] 1. Bag body; 2. Sealing plate; 3. Flow control mechanism; 301. Cylinder; 302. Rotating column; 303. Feeding hole; 304. Barrier plate one; 305. Barrier plate two; 306. Rotating ring; 307. Connecting pin; 308. Connecting rod; 309. Sealing assembly; 3091. Cylinder cover; 3092. Sealing ring; 4. Fixing mechanism; 401. Connecting block; 402. Rotating plate; 403. Rotating rod; 404. Fixing block; 405. Limiting pin; 406. Support fixing hole; 407. Folding fixing hole; 5. Embedding strip; 6. Embedding groove; 7. Slide groove; 8. Sliding block; 9. Locking block; 10. Locking groove; 11. Pull ring. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: an aluminum foil composite film packaging bag with high barrier performance, including a bag body 1. The bag body 1 forms a sealed cavity to store the contents and prevent the intrusion of external oxygen, water vapor and light. Sealing pieces 2 are fixedly connected to the top and front sides of the bag body 1. The front and rear sealing pieces 2 are connected to the top of the bag body 1 by heat sealing process to form an open basic structure. A flow control mechanism 3 is provided on the right side of the front sealing piece 2. Fixing mechanisms 4 are fixedly connected to the upper middle part of the left and right sides of the bag body 1.

[0035] The flow control mechanism 3 includes a cylinder 301. The bottom of the cylinder 301 is connected to the top right side of the corresponding sealing plate 2. The top of the cylinder 301 is threaded to the cylinder cover 3091. The inner wall provides rotational support for the rotating column 302. An annular groove 10 is provided on the top of the outer wall for installing a rotating ring 306. The rotating column 302 is rotatably connected inside the cylinder 301. The rotating column 302 realizes feeding and discharging circulation through rotation. The top left and right sides of the rotating column 302 are provided with conveying holes 303. By rotating the rotating column 302 ninety degrees, quantitative output is realized. The two conveying holes 303 work alternately to ensure continuous and stable flow control. The top left side of the inner wall of the cylinder 301 A first baffle plate 304 is fixedly connected, and a second baffle plate 305 is fixedly connected to the bottom right side of the inner wall of the cylinder 301. The first baffle plate 304 and the second baffle plate 305 are symmetrically arranged. By alternately blocking the inlet and outlet of the feed hole 303, the directional flow control of the powder is realized. A rotating ring 306 is rotatably connected to the top of the outer wall of the cylinder 301. A connecting pin 307 is fixedly connected to the top of the rotating column 302. A connecting rod 308 is fixedly connected to the top of the connecting pin 307. The connecting pin 307 and the connecting rod 308 form a transmission component. The front and rear ends of the connecting rod 308 are fixedly connected to the front and rear sides of the top of the inner wall of the rotating ring 306, respectively. A sealing component 309 is provided on the top of the cylinder 301.

[0036] The sealing assembly 309 includes a cylindrical cover 3091. The lower part of the inner wall of the cylindrical cover 3091 is threadedly connected to the upper part of the outer wall of the cylinder 301. A sealing ring 3092 is fixedly connected to the top of the inner wall of the cylindrical cover 3091 to fill the gap between the cylindrical covers 3091 and achieve dustproof and waterproof sealing.

[0037] Specifically, when it is necessary to empty the powder from the bag, the rotating ring 306 at the top of the outer wall of the cylinder 301 is rotated. The rotating ring 306 drives the connecting pin 307 to rotate synchronously through the connecting rod 308, thereby causing the rotating column 302 inside the cylinder 301 to rotate. The feed hole 303 of the rotating column 302 is misaligned with the first baffle plate 304 and the second baffle plate 305. The first baffle plate 304 blocks the top of the feed hole 303, and the second baffle plate 305 blocks the bottom of the feed hole 303, thus preventing the powder from entering the feed hole 303. When the bag body 1 is tilted, the powder flows towards the cylinder 301 due to gravity. Rotating the rotating ring 306 causes the rotating column 302 to rotate 90 degrees. At this time, the bottom of the feed hole 303 avoids the second baffle plate 305, and the powder can flow into the feed hole 303 to complete the filling. At the same time, the top of the feed hole 303 is blocked. The first baffle plate 304 blocks the powder from being discharged prematurely. After rotating 90 degrees, the top of the powder feeding hole 303 avoids the first baffle plate 304, and the bottom is blocked by the second baffle plate 305. The powder is discharged from the feeding hole 303, while the other feeding hole 303 is filled simultaneously. Through the continuous rotation of the rotating ring 306, the feeding hole 303 alternately completes the feeding and discharging cycle. The amount discharged each time is determined by the volume of the feeding hole 303, which realizes precise flow control and effectively solves the problem of flow control failure caused by a single flat opening. In the non-use state, the cap 3091 of the sealing component 309 is tightly locked to the cylinder 301 by threads, and the sealing ring 3092 at the top of the inner wall is tightly fitted to the top of the rotating ring 306 to form a closed space to prevent the powder in the bag from being contaminated by the external environment.

[0038] Reference Figure 1 , Figure 2 and Figure 5 The fixing mechanism 4 includes two connecting blocks 401, which provide wear-resistant support for the rotation axis of the rotating plate 402. The adjacent sides of the two connecting blocks 401 are fixedly connected to the upper middle part of the left and right sides of the bag body 1, respectively. The front and rear sides of the two connecting blocks 401 are rotatably connected to the rotating plate 402. One side of the multiple rotating plates 402 is fixedly connected to the left and right sides of the bag body 1, respectively. The rotating plates 402 provide lateral support for the edge of the bag opening. The top and rear sides of the two front rotating plates 402 are rotatably connected to rotating rods 403. Rotating the rotating rods 403 can drive the fixing block 404 to move, thus realizing the connection between the limit pin 405 and the support. The fixed hole 406 and the folding fixing hole 407 are precisely aligned. The front ends of the two rotating rods 403 on opposite sides are fixedly connected to the fixing blocks 404. The top of the two fixing blocks 404 is provided with limit pins 405. The bottom ends of the two limit pins 405 pass through the top of the corresponding fixing blocks 404. The front top of the two rear rotating plates 402 are provided with support fixing holes 406. The support fixing holes 406 correspond to the unfolded state of the rotating plates 402. The rear top of the two rear rotating plates 402 are provided with folding fixing holes 407. The support fixing holes 406 correspond to the folded and fitted state of the rotating plates 402.

[0039] The top of each of the two limit pins 405 is fixedly connected with a pull ring 11. The pull ring 11 provides a force point for manually pulling out the limit pin 405. The bottom of the two limit pins 405 respectively engages with the interior of the corresponding support fixing hole 406 and folding fixing hole 407.

[0040] Specifically, the rotational connection is achieved through connecting block 401, which allows for angle adjustment. When it is necessary to keep the bag opening open, the rotating plates on both sides are rotated to the 180-degree unfolded position, causing the rotating plate 402 to extend horizontally and support the edge of the bag opening. By rotating the rotating rod 403, the fixing block 404 swings accordingly, aligning the limiting pin 405 with the support fixing hole 406 of the rear rotating plate 402. Pressing the limiting pin 405 so that its bottom end is inserted into the hole, the tight fit between the limiting pin 405 and the support fixing hole 406 restricts the rotation of the rotating plate 402. At this time, the rotating plates 402 on both sides... 2. A rigid support structure is formed to counteract the soft contraction force of the bag body 1, prevent the bag opening from collapsing, and facilitate the retrieval of items inside the bag. When it is necessary to close the bag opening, the limit pin 405 is pulled out by the pull ring 11 to release the lock. The rotating plate 402 is rotated to fold and close with the bag opening. After the front and rear rotating plates 402 are folded together, the rotating rod 403 is rotated again to align the limit pin 405 with the folding fixing hole 407 of the rear rotating plate 402. The limit pin 405 is inserted to complete the locking, keeping the rotating plate 402 in a folded state. The restraint of the rotating plate 402 prevents the bag opening from opening.

[0041] Reference Figure 1 , Figure 2 and Figure 6 An embedding strip 5 is fixedly connected to the rear side of the front sealing piece 2, and an embedding groove 6 is opened on the front side of the rear sealing piece 2. The embedding strip 5 and the embedding groove 6 engage to seal the sealing pieces 2 on both sides. A sliding groove 7 is opened on the upper middle part of the opposite side of the two sealing pieces 2. The same slider 8 is slidably connected to the left side of the inner wall of the two sliding grooves 7. The slider 8 can easily engage the embedding strip 5 with the embedding groove 6. The top width of the two sealing pieces 2 matches the inner width of the slider 8. The rear side of the embedding strip 5 engages with the inside of the embedding groove 6. A locking block 9 is fixedly connected to the four corners of the front side of the bag body 1, and a locking groove 10 is opened at the four corners of the rear side of the bag body 1. The locking block 9 of different bags 1 engages with the corresponding locking groove 10 to play a fixing role and prevent slippage.

[0042] Specifically, the slider 8 slides along the groove 7, and the top width of the two sealing pieces 2 matches the inner width of the slider 8, so that the slider 8 squeezes the two sealing pieces 2 when it moves, causing the insert strip 5 to be squeezed into the insert groove 6, thereby sealing the connection between the two sealing pieces 2. When multiple bags 1 are stacked, the card block 9 is engaged with the corresponding card groove 10 to form a positioning, preventing the bags 1 from slipping when stacked.

[0043] Working principle: When not in use, the cap 3091 of the sealing assembly 309 is locked to the cylinder 301 by threads, and the sealing ring 3092 on the top of the inner wall is tightly fitted to the top of the rotating ring 306, forming a sealed space to prevent the powder inside the bag from being contaminated by the outside. When it is necessary to pour out the powder, unscrew the cap 3091 and rotate the rotating ring 306 on the top of the outer wall of the cylinder 301. The rotating ring 306 drives the connecting pin 307 to rotate synchronously through the connecting rod 308, thereby causing the rotating column 302 inside the cylinder 301 to rotate. The feed hole 303 of the rotating column 302 is misaligned with the first barrier plate 304 and the second barrier plate 305. The first barrier plate 304 blocks the top of the feed hole 303, and the second barrier plate 305 blocks the bottom of the feed hole 303, preventing the powder from entering the feed hole 303. When the bag body 1 is tilted... The powder flows towards the cylinder 301 due to gravity. The rotating ring 306 rotates the rotating column 302 by 90 degrees. At this time, the bottom of the feeding hole 303 on one side avoids the second baffle plate 305, and the powder flows into the feeding hole 303 to complete the filling. At the same time, the top of the feeding hole 303 is blocked by the first baffle plate 304 to prevent premature discharge. After rotating 90 degrees, the top of the feeding hole 303 filled with powder avoids the first baffle plate 304, and the bottom is blocked by the second baffle plate 305. The powder is discharged from the feeding hole 303, while the feeding hole 303 on the other side is filled at the same time. Through the continuous rotation of the rotating ring 306, the feeding hole 303 alternately completes the feeding and discharging cycle. The discharge amount each time is fixed by the volume of the feeding hole 303, realizing precise flow control and solving the problem of flow control failure of a single flat opening.

[0044] Furthermore, the rotating plate 402 is rotatably connected via the connecting block 401, allowing the angle to be adjusted around the connecting block 401. When it is necessary to keep the bag opening open, rotate both rotating plates 402 to the 180-degree unfolded position. At this time, the rotating plates 402 on both sides remain horizontally extended, providing support for the edge of the bag opening. Rotate the rotating rod 403 to make the fixing block 404 swing with the rotating rod 403, align the limiting pin 405 with the support fixing hole 406 of the rear rotating plate 402, and press the limiting pin 405 so that its bottom end is inserted into the hole. The tight engagement between the limiting pin 405 and the support fixing hole 406 restricts the rotation of the rotating plate 402. At this time, the two rotating plates 402 form a rigid support structure to counteract the soft contraction force of the bag body 1 itself, prevent the bag opening from collapsing, and facilitate the retrieval of items inside the bag. When it is necessary to close the bag opening, the limit pin 405 is pulled out by the pull ring 11 to release the lock, and the rotating plate 402 is rotated to fold and close with the bag opening. After the front and rear rotating plates 402 are folded together, the rotating rod 403 is rotated again to make the limit pin 405 align with the folding fixing hole 407 of the rear rotating plate 402. The limit pin 405 is inserted to complete the locking, so that the rotating plate 402 is kept in the folded state. The restraint of the rotating plate 402 prevents the bag opening from opening accidentally.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-barrier aluminum foil composite film packaging bag, comprising a bag body (1), characterized in that: The top and front sides of the bag body (1) are fixedly connected with sealing pieces (2), and the right side of the sealing piece (2) on the front side is provided with a flow control mechanism (3). The upper middle part of the left and right sides of the bag body (1) is fixedly connected with a fixing mechanism (4). The flow control mechanism (3) includes a cylinder (301), the bottom of which is connected to the top right side of the corresponding sealing plate (2). A rotating column (302) is rotatably connected inside the cylinder (301). A feeding hole (303) is provided on both the left and right sides of the top of the rotating column (302). A baffle plate (304) is fixedly connected to the top left side of the inner wall of the cylinder (301), and a baffle plate (304) is fixedly connected to the bottom right side of the inner wall of the cylinder (301). A second baffle plate (305) is connected to the top of the outer wall of the cylinder (301), a rotating ring (306) is rotatably connected to the top of the rotating column (302), a connecting pin (307) is fixedly connected to the top of the connecting pin (307), a connecting rod (308) is fixedly connected to the top of the connecting pin (307), the front and rear ends of the connecting rod (308) are fixedly connected to the front and rear sides of the top of the inner wall of the rotating ring (306) respectively, and a sealing assembly (309) is provided on the top of the cylinder (301).

2. The aluminum foil composite film packaging bag with high barrier properties according to claim 1, characterized in that: The fixing mechanism (4) includes two connecting blocks (401). The adjacent sides of the two connecting blocks (401) are fixedly connected to the upper middle part of the left and right sides of the bag body (1). The front and rear sides of the two connecting blocks (401) are rotatably connected to rotating plates (402). One side of the multiple rotating plates (402) is fixedly connected to the left and right sides of the bag body (1). The top rear side of the two front rotating plates (402) is rotatably connected to rotating rods (403). The front ends of the opposite sides of the two rotating rods (403) are fixedly connected to fixing blocks (404). The top of the two fixing blocks (404) is provided with limit pins (405). The bottom ends of the two limit pins (405) pass through the top of the corresponding fixing blocks (404). The top front side of the two rear rotating plates (402) is provided with support fixing holes (406). The top rear side of the two rear rotating plates (402) is provided with folding fixing holes (407).

3. The aluminum foil composite film packaging bag with high barrier properties according to claim 1, characterized in that: The sealing assembly (309) includes a cap (3091), the lower part of the inner wall of the cap (3091) is threadedly connected to the upper part of the outer wall of the cylinder (301), and a sealing ring (3092) is fixedly connected to the top of the inner wall of the cap (3091).

4. The aluminum foil composite film packaging bag with high barrier properties according to claim 2, characterized in that: The top of each of the two limiting pins (405) is fixedly connected with a pull ring (11), and the bottom of each of the two limiting pins (405) engages with the interior of the corresponding support fixing hole (406) and folding fixing hole (407).

5. The aluminum foil composite film packaging bag with high barrier properties according to claim 1, characterized in that: An embedding strip (5) is fixedly connected to the rear side of the front sealing piece (2), and an embedding groove (6) is opened on the front side of the rear sealing piece (2).

6. The aluminum foil composite film packaging bag with high barrier properties according to claim 1, characterized in that: The two sealing pieces (2) are provided with grooves (7) on the upper middle part of the opposite side, and the same slider (8) is slidably connected to the left side of the inner wall of the two grooves (7).

7. The aluminum foil composite film packaging bag with high barrier properties according to claim 5, characterized in that: The top width of the two sealing pieces (2) matches the inner width of the slider (8), and the rear side of the insert strip (5) engages with the inside of the insert groove (6).

8. The aluminum foil composite film packaging bag with high barrier properties according to claim 1, characterized in that: Each of the four corners on the front side of the bag body (1) is fixedly connected with a card block (9), and each of the four corners on the rear side of the bag body (1) is provided with a card slot (10).

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