An anti-skid air column bag and a manufacturing process thereof

Abstract

The application discloses an anti-skid air column bag and a manufacturing process thereof, relates to the field of article packaging, and aims to solve the problem that an ice layer is formed on the surface of the air column bag during cold chain transportation, and it is inconvenient for people to exert force and grab the air column bag. Technical scheme points are as follows: the bag body is provided with a plurality of air cavities one arranged in an array, an air inlet channel is arranged on one side of the bag body, air valve membranes are arranged between the air inlet channel and the air cavities one to be in communication with each other, elastic sheets are fixedly connected to the surface of the bag body at the air cavities one, the surface of the elastic sheet is a plane in a natural state of the bag body, the air cavities one are inflated to make the elastic sheet bent and form a plurality of protrusions on the elastic sheet after the bag body is inflated, the elastic sheet is pushed out to form the protrusions after the air cavities one are filled with air and inflated, and the protrusions of the plurality of elastic sheets can increase the contact friction between the palm and the bag body during the carrying process, so that the bag body is prevented from sliding in the palm.

Description

Technical Field

[0001] This invention relates to the field of product packaging, and more specifically, to an anti-slip air column bag and its manufacturing process. Background Technology

[0002] Air column bags, also known as cushioning air column bags or inflatable bags, are a new type of patented packaging material that uses natural air to fill the packaging. They are currently the most economical and environmentally friendly cushioning packaging material. Air column bags utilize fully enclosed air columns for cushioning and protection, dispersing pressure and minimizing product loss during transportation.

[0003] Most air column bags are made of smooth plastic, which has good moisture-proof properties. However, during cold chain transportation, when the air column bag and the food inside are first placed in the freezer, the surface temperature of the air column bag is high, and moisture in the air easily liquefies on the surface of the air column bag. As the surface temperature of the air column bag gradually decreases in the freezer, the liquefied water freezes and eventually forms a smooth layer of ice on the surface of the air column bag. This makes it inconvenient for people to handle and grasp the air column bag.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an anti-slip air column bag and its manufacturing process. The bag features an elastic sheet on its surface that is flat and concealed before air injection, and then curls up after air injection to increase surface friction when people grip the bag.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an anti-slip air column bag, comprising a bag body, wherein the bag body has a plurality of air chambers arranged in an array, an air inlet channel is provided on one side of the bag body, and the air inlet channel and the air chambers are interconnected by air valve membranes, and an elastic sheet is fixedly connected to each air chamber on the surface of the bag body. In the natural state, the surface of the elastic sheet is flat, and when the bag body is inflated, the air chambers bulge, causing the elastic sheet to bend and form a plurality of protrusions on the elastic sheet.

[0007] By adopting the above technical solution, after air is filled into the air chamber 1 through the air inlet channel, the air chamber 1 will bulge. Since an air valve membrane is set between the air inlet channel and the air chamber, the gas can only enter in one direction and cannot escape from the air chamber 1. Several elastic sheets are fixedly connected to the outer surface of the bag corresponding to the position of the air chamber 1. After the air chamber 1 is filled with gas and expands, the elastic sheets are pushed outward to form protrusions. The protrusions of the elastic sheets can increase the contact friction between the palm and the bag during handling, preventing the bag from sliding in the palm. During normal storage, the elastic sheets can fit against the surface of the bag without affecting the normal storage of the bag and reducing the space occupied by the bag.

[0008] The present invention is further configured such that: a plurality of through grooves are provided on the elastic sheet, and the shape of the through grooves is a U-shaped.

[0009] By adopting the above technical solution, the elastic sheet can be divided into a plurality of protrusions through the through grooves, making the elastic sheet more prone to deformation. When stacking, the protrusions can be inserted from the through grooves of another bag body, making the connection between adjacent two bag bodies tighter, reducing the shaking of the bag body during transportation, and thus better protecting the product.

[0010] The present invention is further configured such that: a second air chamber is provided on the side of the bag body away from the air inlet passage, and the second air chamber is in mutual communication with the first air chamber, and an exhaust mechanism for exhausting the air in the first air chamber and the second air chamber is provided on the bag body.

[0011] By adopting the above technical solution, a second air chamber is provided on the side of the bag body away from the first air chamber, and the first air chamber is in communication with the second air chamber. When the gas enters from the air inlet passage, the first air chamber and the second air chamber are gradually filled. Through the exhaust mechanism provided on the bag body for exhausting gas, after the transportation is completed, the air can be released through the exhaust mechanism to relieve the item packaging, facilitating the recycling of the bag body.

[0012] The present invention is further configured such that: the exhaust mechanism includes an exhaust pipe and a seal for sealing the exhaust pipe. The exhaust pipe is fixedly connected to one end of the bag body away from the air inlet passage. The exhaust pipe is in mutual communication with the inside of the second air chamber, and the exhaust pipe extends out of the bag body. A plurality of exhaust holes are provided in the part of the exhaust pipe located inside the bag body, and the exhaust holes are in mutual communication with the second air chamber. An installation block is fixedly connected to one end of the exhaust pipe close to the second air chamber. The seal is arranged inside the exhaust pipe, and the seal is detachably connected to the exhaust holes.

[0013] By adopting the above technical solution, during inflation, the gas is filled into the inflation passage, so that the first air chamber and the second air chamber are filled with air in sequence. During the normal use of the bag body, the seal can block the exhaust holes, so that the bag body can be normally used. When deflation is required, the seal can be separated from the exhaust holes, so that the exhaust holes are opened, facilitating the release of the gas in the first air chamber and the second air chamber, making the bag body easy to recycle. When used again, only the seal is needed to block the exhaust holes, reducing the waste of resources.

[0014] The present invention is further configured such that: the seal includes a sealing block which is slidably connected inside the exhaust pipe. The sealing block abuts against the inner wall of the exhaust pipe. A operating rod is fixedly connected to the side of the sealing block away from the installation block. A groove is provided on the side of the sealing block close to the operating rod, and an air vent is provided on the side wall of the groove. A limiting block is fixedly connected to one end of the exhaust pipe close to the installation block. When the sealing block abuts against the limiting block, the air vent is in mutual communication with the exhaust holes.

[0015] By adopting the above technical solution, during normal inflation, the sealing block blocks the vent hole, preventing gas from escaping and ensuring the normal use of the bag. When deflation is required, the sealing block is pressed by the operating rod, causing it to abut against the limiting block. At this time, the vent and the vent hole are interconnected, allowing gas to escape from air chamber one and air chamber two through the vent, the vent hole, and the groove, thereby causing the bag to shrink and facilitating secondary inflation. This eliminates the need to damage the bag surface, allowing the bag to be reused and saving resources.

[0016] The present invention is further configured such that: a spring is provided between the sealing block and the mounting block, and the two ends of the spring abut against the inner top surfaces of the sealing block and the mounting block, respectively.

[0017] By adopting the above technical solution, the spring is set between the sealing block and the mounting block. When the sealing block is pressed, the sealing block can squeeze the spring, causing the spring to deform. When the sealing block is released, the spring returns to its original shape and can push the sealing block back to its original position, so that the sealing block can automatically restore itself.

[0018] The present invention is further configured such that: a sliding groove is provided on the inner wall of the exhaust pipe, a slider is fixedly connected to the side wall of the sealing block, the slider is slidably connected in the sliding groove, a connecting groove is provided on the exhaust pipe that communicates with the sliding groove, and the slider is detachably connected in the connecting groove.

[0019] By adopting the above technical solution, the slide is vertically set on the inner wall of the exhaust pipe. The slider drives the sealing block to slide inside the exhaust pipe, so that the sealing block can remain straight up or down during the sliding process. This prevents the relative position of the vent and the exhaust hole from deviating during the venting process, ensuring the speed of venting. During normal use of the bag, the slider can be moved in the connecting groove by rotating the operating rod, so that the slider is locked into the connecting groove. This prevents people from accidentally touching the operating rod and causing the vent and the exhaust hole to become connected, ensuring the stability of the bag during use.

[0020] The invention is further configured such that a screw cap is threaded onto the side of the exhaust pipe away from the bag body.

[0021] By adopting the above technical solution, the exhaust pipe can be sealed by screwing on the cap, so that the bag can maintain a stable seal during use and ensure that the bag will not leak air during use.

[0022] A manufacturing process for anti-slip air column bags, comprising the following steps:

[0023] S1: Mixing, which involves mixing polyester plastic granules and polyethylene granules;

[0024] S2: Extrusion molding, the mixed raw materials are melted, and then the plastic is extruded through the extrusion nozzle of the extruder and then cooled to solidify the plastic.

[0025] S3: Hot pressing, which divides the formed plastic film into an upper film and a lower film, and then fixes the valve film onto the upper film through a hot pressing process;

[0026] S4, anti-slip treatment, cut out an elastic sheet with the same shape as the upper film, cut several through grooves with three sides connected on the surface of the elastic sheet, and then bond the four sides of the elastic sheet to the surface of the upper film.

[0027] S5: Pressing, with the side of the upper film with the valve membrane fixed facing the lower film, then placing the exhaust pipe between the upper and lower films and away from the valve membrane, and finally heat-sealing the upper and lower films together to form a bag using a heat-sealing mold.

[0028] S6: Assembly: Simply tighten the cap along the direction of the exhaust pipe thread.

[0029] In summary, the present invention has the following beneficial effects:

[0030] Several elastic sheets are fixedly connected to the outer surface of the bag at a position corresponding to the air cavity. After the air cavity is filled with gas and inflates, the elastic sheets are pushed outward to form protrusions. The protrusions of the elastic sheets can increase the contact friction between the palm and the bag during handling, preventing the bag from sliding in the palm. During normal storage, the elastic sheets can fit against the surface of the bag without affecting the normal storage of the bag and reducing the space occupied by the bag. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0033] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0034] Figure 4 This is a schematic diagram of the exhaust pipe and exhaust mechanism in this invention. Figure 1 ;

[0035] Figure 5 This is a schematic diagram of the exhaust pipe and exhaust mechanism in this invention. Figure 2 .

[0036] In the diagram: 1. Bag body; 2. Air chamber one; 3. Air inlet channel; 4. Air valve diaphragm; 5. Elastic sheet; 6. Protrusion; 7. Through groove; 8. Air chamber two; 9. Exhaust pipe; 10. Exhaust hole; 11. Mounting block; 12. Sealing block; 13. Operating rod; 14. Groove; 15. Vent; 16. Limiting block; 17. Spring; 18. Slide groove; 19. Sliding block; 20. Connecting groove; 21. Screw cap. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] Anti-slip air column bags, such as Figures 1-5 As shown, the bag includes a bag body 1, which has several air chambers 2 arranged in an array. An air inlet channel 3 is provided on one side of the bag body 1. The air inlet channel 3 and the air chambers 2 are interconnected by an air valve diaphragm 4. Elastic sheets 5 are fixedly connected to the surface of the bag body 1 at the locations of the air chambers 2. In its natural state, the surface of the elastic sheets 5 is flat. When the bag body 1 is inflated, the air chambers 2 bulge, causing the elastic sheets 5 to bend and form several protrusions 6 on the elastic sheets 5. After air is injected into the air chambers 2 through the air inlet channel 3, the air chambers 2 bulge. Because the air inlet channel 3 and the air chambers 2... An air valve membrane 4 is installed between the air chambers, allowing gas to enter only in one direction and preventing it from escaping from the air chamber 2. Several elastic sheets 5 are fixedly connected to the outer surface of the bag body 1 at the position corresponding to the air chamber 2. After the air chamber 2 is filled with gas and expands, the elastic sheets 5 are pushed outward to form protrusions 6. The protrusions 6 of the elastic sheets 5 can increase the contact friction between the palm and the bag body 1 during handling, preventing the bag body 1 from sliding in the palm. During normal storage, the elastic sheets 5 can fit against the surface of the bag body 1 without affecting the normal storage of the bag body 1 and reducing the space occupied by the bag body 1.

[0039] The elastic sheet 5 has several through grooves 7, which are U-shaped. The through grooves 7 can divide the elastic sheet 5 into several protrusions 6, making the elastic sheet 5 easier to deform. When stacked, the protrusions 6 can be inserted from the through grooves 7 of another bag body 1, making the connection between the two adjacent bag bodies 1 tighter, reducing the shaking of the bag body 1 during transportation, and thus better protecting the product.

[0040] The bag body 1 has an air chamber 2 8 on the side away from the air inlet channel 3, and the air chamber 2 8 is interconnected with the air chamber 1. The bag body 1 is provided with an exhaust mechanism for discharging the air in the air chamber 1 2 and the air chamber 2 8. When gas enters from the air inlet channel 3, it gradually fills the air chamber 1 2 and the air chamber 2 8. After transportation, the packaging of the goods can be released by venting the gas through the exhaust mechanism on the bag body 1, which facilitates the recycling of the bag body 1.

[0041] The exhaust mechanism includes an exhaust pipe 9 and a sealing element for sealing the exhaust pipe 9. The exhaust pipe 9 is fixedly connected to the end of the bag body 1 away from the air inlet channel 3. The exhaust pipe 9 communicates with the interior of the second air chamber 8 and extends from inside the bag body 1. The portion of the exhaust pipe 9 inside the bag body 1 has several exhaust holes 10, which communicate with the second air chamber 8. A mounting block 11 is fixedly connected to the end of the exhaust pipe 9 near the second air chamber 8. The sealing element is disposed inside the exhaust pipe 9 and is detachably connected to the exhaust holes 10. When the bag is filled with air, gas is introduced through the inflation channel, filling air chamber 2 and air chamber 8 sequentially. During normal use of the bag 1, the sealing element can block the vent hole 10, allowing the bag 1 to be used normally. When it is necessary to release air, the sealing element can be separated from the vent hole 10, allowing the vent hole 10 to open and facilitating the release of gas from air chamber 2 and air chamber 8. This makes the bag 1 easy to recycle. When reused, the vent hole 10 can be blocked simply by using the sealing element, reducing resource waste.

[0042] The sealing element includes a sealing block 12, which is slidably connected inside the exhaust pipe 9. The sealing block 12 abuts against the inner wall of the exhaust pipe 9. An operating rod 13 is fixedly connected to the side of the sealing block 12 away from the mounting block 11. A groove 14 is formed on the side of the sealing block 12 near the operating rod 13, and a vent 15 is formed on the side wall of the groove 14. A limit block 16 is fixedly connected to the end of the exhaust pipe 9 near the mounting block 11. When the sealing block 12 abuts against the limit block 16, the vent 15 and the exhaust hole 10 are interconnected. During normal inflation, the sealing block... Block 12 blocks the vent 10, preventing gas from escaping and ensuring the normal use of the bag body 1. When air needs to be released, the sealing block 12 is pressed by the operating rod 13, causing the sealing block 12 to abut against the limiting block 16. At this time, the vent 15 and the vent 10 are interconnected, and the gas can be discharged from the air chamber 1 2 and the air chamber 2 8 through the vent 15, the vent 10, and the groove 14, thereby causing the bag body 1 to shrink and be easily refilled. There is no need to damage the surface of the bag body 1, allowing the bag body 1 to be reused and saving resources.

[0043] A spring 17 is provided between the sealing block 12 and the mounting block 11. The two ends of the spring 17 abut against the inner top surfaces of the sealing block 12 and the mounting block 11, respectively. The spring 17 is located between the sealing block 12 and the mounting block 11. When the sealing block 12 is pressed, the sealing block 12 can squeeze the spring 17, causing the spring 17 to deform. When the sealing block 12 is released, the spring 17 returns to its original shape and can push the sealing block 12 back to its original position, so that the sealing block 12 can automatically restore itself.

[0044] A groove 18 is provided on the inner wall of the exhaust pipe 9. A slider 19 is fixedly connected to the side wall of the sealing block 12. The slider 19 is slidably connected in the groove 18. A connecting groove 20 is provided on the exhaust pipe 9, which communicates with the groove 18. The slider 19 is detachably connected in the connecting groove 20. The groove 18 is vertically set in the exhaust pipe 9. The slider 19 drives the sealing block 12 to slide in the exhaust pipe 9, so that the sealing block 12 can remain straight up or down during the sliding process. This prevents the relative position of the vent 15 and the exhaust hole 10 from deviating during the air release process, ensuring the speed of air release. During normal use of the bag body 1, the slider 19 can be moved in the connecting groove 20 by rotating the operating rod 13, so that the slider 19 is locked in the connecting groove 20. This prevents people from accidentally touching the operating rod 13 and making the vent 15 and the exhaust hole 10 connected, ensuring the stability of the bag body 1 during use.

[0045] The exhaust pipe 9 is threaded with a cap 21 on the side away from the bag body 1. The cap 21 can be used to seal the exhaust pipe 9, so that the bag body 1 can maintain a stable seal during use and ensure that the bag body 1 will not leak air during use.

[0046] A manufacturing process for anti-slip air column bags, comprising the following steps:

[0047] S1: Mixing, which involves mixing polyester plastic granules and polyethylene granules;

[0048] S2: Extrusion molding, the mixed raw materials are melted, and then the plastic is extruded through the extrusion nozzle of the extruder and then cooled to solidify the plastic.

[0049] S3: Hot pressing, the formed plastic film is divided into an upper film and a lower film, and then the valve film 4 is fixed on the upper film by hot pressing process;

[0050] S4, anti-slip treatment, cut out an elastic sheet 5 that is consistent with the shape of the upper film, cut several through grooves 7 with three sides connected on the surface of the elastic sheet 5, and then bond the four sides of the elastic sheet 5 to the surface of the upper film.

[0051] S5: Pressing, with the side of the upper film with the valve membrane 4 fixed facing the lower film, then the exhaust pipe 9 is placed between the upper and lower films and away from the valve membrane 4, and finally the upper and lower films are heat-sealed together by the heat sealing mold to form the bag body 1.

[0052] S6: Assembly: Tighten the cap 21 along the thread direction of the exhaust pipe 9.

[0053] When manufacturing anti-slip air column bags, only one step of bonding elastic sheet 5 needs to be added before pressing the upper and lower films. Before bonding, the elastic sheet 5 is cut with a U-shaped groove 7 on its surface. After inflation, the elastic sheet 5 will separate at the groove 7, thus forming a protrusion 6, which increases the friction between the palm and the bag body 1. The whole production process is more convenient and the required cost is lower.

[0054] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A non-slip air column bag, comprising a bag body (1), characterized in that: There are a number of first air chambers (2) arranged in an array on the bag body (1). An air inlet channel (3) is provided on one side of the bag body (1). The air inlet channel (3) and the first air chambers (2) are mutually导通 through air valve membranes (4). Elastic sheets (5) are fixedly connected to the surface of the bag body (1) at the positions of the first air chambers (2). The surface of the elastic sheet (5) is flat in the natural state of the bag body (1). When the bag body (1) is inflated, the first air chambers (2) bulge, causing the elastic sheet (5) to bend and form a number of protrusions (6) on the elastic sheet (5); A number of through slots (7) are formed in the elastic sheet (5). The shape of the through slots (7) is U-shaped; The elastic sheet (5) can be divided into a number of protrusions (6) through the through slots (7), making the elastic sheet (5) more prone to deformation. When stacking, the protrusions (6) can be inserted through the through slots (7) of another bag body (1), making the connection between adjacent two bag bodies (1) more紧密; A second air chamber (8) is provided on the side of the bag body (1) away from the air inlet channel (3), and the second air chamber (8) is mutually导通 with the first air chamber (2). An exhaust mechanism for discharging the air in the first air chamber (2) and the second air chamber (8) is provided on the bag body (1); The exhaust mechanism includes an exhaust pipe (9) and a seal for sealing the exhaust pipe (9). The exhaust pipe (9) is fixedly connected to one end of the bag body (1) away from the air inlet channel (3). The exhaust pipe (9) is mutually导通 with the inside of the second air chamber (8), and the exhaust pipe (9) extends out of the bag body (1). A number of exhaust holes (10) are formed in the part of the exhaust pipe (9) located inside the bag body (1). The exhaust holes (10) are mutually导通 with the second air chamber (8). An installation block (11) is fixedly connected to one end of the exhaust pipe (9) close to the second air chamber (8). The seal is arranged inside the exhaust pipe (9), and the seal is detachably connected to the exhaust holes (10); The seal includes a seal block (12). The seal block (12) is slidably connected inside the exhaust pipe (9). The seal block (12) abuts against the inner wall of the exhaust pipe (9). An operating rod (13) is fixedly connected to the side of the seal block (12) away from the installation block (11). A groove (14) is formed on the side of the seal block (12) close to the operating rod (13). An air vent (15) is formed on the side wall of the groove (14). A limiting block (16) is fixedly connected to one end of the exhaust pipe (9) close to the installation block (11). When the seal block (12) abuts against the limiting block (16), the air vent (15) is mutually导通 with the exhaust holes (10); A spring (17) is arranged between the seal block (12) and the installation block (11). The two ends of the spring (17) respectively abut against the inner top surface of the seal block (12) and the installation block (11); The inner wall of the exhaust pipe (9) is provided with a sliding groove (18), and a slider (19) is fixedly connected to the side wall of the sealing block (12). The slider (19) is slidably connected in the sliding groove (18). The exhaust pipe (9) is provided with a connecting groove (20) that communicates with the sliding groove (18). The slider (19) is detachably connected in the connecting groove (20).

2. The anti-slip air column bag according to claim 1, characterized in that: The exhaust pipe (9) is threaded with a cap (21) on the side away from the bag body (1).

3. A manufacturing process for an anti-slip air column bag, used to manufacture the anti-slip air column bag as described in any one of claims 1-2, characterized in that: Includes the following steps, S1: Mixing, which involves mixing polyester plastic granules and polyethylene granules; S2: Extrusion molding, the mixed raw materials are melted, and then the plastic is extruded through the extrusion nozzle of the extruder and then cooled to solidify the plastic. S3: Hot pressing, the formed plastic film is divided into an upper film and a lower film, and then the valve film (4) is fixed on the upper film by hot pressing process; S4, anti-slip treatment, cut out an elastic sheet (5) that is consistent with the shape of the upper film, cut several through grooves (7) with three sides connected on the surface of the elastic sheet (5), and then bond the elastic sheet (5) to the surface of the upper film. S5: Pressing, the side of the upper film with the valve membrane (4) fixed is facing the lower film, then the exhaust pipe (9) is placed between the upper film and the lower film and away from the valve membrane (4), and finally the upper film and the lower film are heat-sealed together by the heat sealing mold to form a bag (1). S6: Assembly: Tighten the cap (21) along the thread direction of the exhaust pipe (9).

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