Inflation device for O-shaped inflatable bag with double inflation ports

Abstract

The utility model discloses an inflating device for an O-shaped inflating bag with double inflating ports. The inflating device comprises a shell and two inflating components, the inflation assembly comprises an inflation pipe arranged at the upper end of the shell, two pairs of inflation pressing wheels and a pair of feeding pressing wheels, wherein the two pairs of inflation pressing wheels and the pair of feeding pressing wheels are sequentially arranged in the axial direction of the inflation pipe. A plurality of inflation holes are formed in the upper end of the inflation pipe and located between the two pairs of inflation pressing wheels. A cutting knife is arranged between the feeding pressing wheel and the inflation pressing wheel. A lateral air groove is formed in the side surface of the inflating pipe; one end of the cutting knife is located in the lateral air groove, and the other end of the cutting knife is arranged at the upper end of the shell. The two inflation assemblies inflate the O-shaped inflation bag with two independent inflation openings at the same time, the independent feeding pressing wheels are arranged in the follow-up direction of the two pairs of inflation pressing wheels and used for traction conveying, meanwhile, the cutting knife is arranged between the feeding pressing wheels and the inflation pressing wheels, and it is guaranteed that two packaging edges of the O-shaped inflation bag are evenly stressed and synchronously fed.

Description

Technical Field

[0001] This utility model belongs to the field of air packaging bag technology, and in particular relates to an inflation device for O-type air bags with double inflation ports. Background Technology

[0002] Inflatable bags, also known as cushioning air column bags or cylindrical inflatable bags, are a new type of packaging material filled with natural air. They play an important role in the transportation industry, especially in e-commerce, where merchants use inflatable bags to package goods to prevent them from being crushed. With the continuous development of e-commerce and the packaging industry, inflatable bags are gradually evolving towards three-dimensional designs, forming a three-dimensional packaging form after inflation. Based on their shape, they can be divided into Q-shaped, L-shaped, and U-shaped inflatable bags, among others. With the increasing demand for customization, an O-shaped inflatable bag for packaging surveillance cameras has emerged. This type of inflatable bag has openings at both ends, and the two opposite packaging walls are not connected, thus each packaging wall has an independent inflation port.

[0003] Chinese patent document CN104859951B discloses an inflator, specifically an inflator capable of automatically inflating cushioning packaging bags. The inflator employs the following technology: an inflator for automatically inflating cushioning packaging bags includes a support frame. A first pressure roller group and a second pressure roller group are arranged on one side of the support frame. The outer circumferential surfaces of the first upper pressure roller, the first lower pressure roller, the second upper pressure roller, and the second lower pressure roller are all concave arc surfaces. A guide inflation tube is arranged between the two pressure rollers of the first pressure roller group and the two pressure rollers of the second pressure roller group. The guide inflation tube has a small vent hole located between the first pressure roller group and the second pressure roller group. A blade is provided at the second pressure roller group.

[0004] The aforementioned patented solutions can only inflate cylindrical air bags with a single inflation port, and are not applicable to O-type air bags with two inflation ports. Even if two of the above patented solutions are stacked, because the end of the main inflation channel being cut is not clamped and is relatively soft, irregular wrinkles and bends will occur during the inflation process. When the blade is inserted between the blade and the second pressure roller for cutting, the two sides of the air bag roll (the uninflated sheet bag) will be subjected to uneven force. The continuous accumulation of slight deviations will cause the two sides of the roll to feed asynchronously, resulting in misalignment, which will further cause the roll to twist, leading to the interruption of the automation process. Utility Model Content

[0005] To overcome the technical problems of existing technologies that cannot inflate O-type air bags with dual inflation ports and cannot ensure synchronous feeding of both sides of the O-type air bag during inflation, one objective of this utility model is to provide an inflation device for O-type air bags with dual inflation ports. This device uses two inflation components to inflate the two packaging sides of the O-type air bag with independent inflation ports. A pair of feed rollers are positioned in the subsequent direction of the two pairs of inflation rollers for traction feeding. A cutting blade is positioned between the feed rollers and the inflation rollers. A lateral air groove is provided on the side of the inflation tube. The two ends of the cutting blade are respectively positioned on the lateral air groove and the housing. While stabilizing the cutting blade, the airflow from the lateral air groove blows towards the end of the main inflation channel, preventing folding and twisting, ensuring the O-type air bag enters between the feed rollers flat, and guaranteeing uniform and synchronous feeding of both packaging sides of the O-type air bag.

[0006] To achieve the above objectives, the present invention employs the following technical solution: an inflation device for a double-inflation-port O-type air bag, comprising a housing and two inflation components disposed on the upper end of the housing; each inflation component includes an inflation tube with one end disposed on the upper end of the housing, two pairs of inflation rollers and a pair of feed rollers sequentially disposed on the upper end of the housing along the axial direction of the inflation tube; the upper end of the inflation tube is provided with a plurality of inflation holes evenly distributed along the axial direction, the inflation holes being located between the two pairs of inflation rollers; wherein a cutting blade is horizontally disposed between the feed roller and the inflation roller; a lateral air groove communicating with the inflation tube is provided on the side of the inflation tube; one end of the cutting blade is located in the lateral air groove, and the other end is disposed on the upper end of the housing.

[0007] The O-shaped inflatable bag has two packaging edges with independent inflation ports, each passing through one of the two inflation components. The two inflation components are inflated through their respective inflation holes. The lateral air channels blow air laterally, straightening the curled and bent ends of the main inflation channel, which are then cut off by the cutting blade. The O-shaped inflatable bag is fed by two pairs of feeding rollers, providing tension. The tensioned areas of the two packaging edges are flat and wrinkle-free, ensuring even force distribution and synchronous feeding of both sides of the O-shaped inflatable bag.

[0008] Furthermore, two outer guide plates are symmetrically arranged at the upper end of the shell; an inner guide plate is arranged at the upper end of the shell between the two outer guide plates; a gap is formed between the outer guide plate and the inner guide plate to form a spacer groove; and two inflation tubes are respectively horizontally arranged at the bottom of the two spacer grooves.

[0009] Specifically, the outer guide plate is provided with two guide slopes at one end near the end of the inflation tube. One of the guide slopes is located at the upper end of the outer guide plate and slopes downward, while the other guide slope is located on the outer side wall of the outer guide plate and slopes towards the inflation tube. The end of the inflation tube extends out from the spacer groove.

[0010] Specifically, a tail plate is longitudinally provided on the upper end of the inner guide plate on the side away from the end of the inflation tube; the tail plate is located on the side of the feed roller away from the inflation roller.

[0011] The guide ramp and the spacer groove provide guidance and stability for the movement of the O-ring inflatable bag, ensuring that the two packaging edges are subjected to uniform force and the path is stable, thus guaranteeing smooth feeding of the two packaging edges. The tail plate keeps the inflated O-ring inflatable bag upright, preventing it from falling over and pulling on subsequent O-ring inflatable bags, causing them to twist, and also facilitating manual tearing and segmentation.

[0012] Furthermore, a chassis is provided on the lower part of the side wall of the housing near the end of the inflation tube; a roll shaft for placing O-type inflation bag roll material is longitudinally provided on the upper end of the chassis; a cooling fan is provided on one end of the housing facing the roll shaft; the cooling fan is located above the chassis.

[0013] The cooling fan dissipates heat from the inside of the housing while also blowing air outwards towards the roll of the O-shaped inflatable bag, which also facilitates the unwinding of the roll and the separation of the two packaging edges.

[0014] Furthermore, an inflation gear is coaxially arranged at the lower end of the inflation pressure roller; the two inflation gears of each pair of inflation pressure rollers are mutually connected, and an inflation sprocket is coaxially arranged at the lower end of one of the inflation gears; a feed gear is coaxially arranged at the lower end of the feed pressure roller; the two feed gears of each pair of feed pressure rollers are mutually connected, and a feed sprocket is coaxially arranged at the lower end of one of the feed gears; a motor that is connected to the inflation sprocket and the feed sprocket is arranged inside the housing.

[0015] Specifically, two tension sprockets are slidably connected inside the housing; the sliding direction of the tension sprockets is perpendicular to the length direction of the inflation tube; a chain is provided between each inflation sprocket, each feed sprocket, each tension sprocket, and the output shaft of the motor; the tension sprockets and the output shaft of the motor are located on the outer ring of the chain.

[0016] Furthermore, the upper end of the housing is provided with two bases; each of the bases is provided with two pressure blocks at its upper end; the inflation tube and the cutting blade are respectively clamped between the pressure blocks and the bases.

[0017] Specifically, a branch pipe is horizontally provided at one end of the inflation pipe near the base; the branch pipe is clamped between the adjacent base and the pressure block; the branch pipe is located between the cutting blade and the feed pressure roller.

[0018] The portion cut off by the cutting blade is then separated by the branch pipe to prevent it from getting stuck between the two feed rollers and causing uneven force on the two packaging edges.

[0019] Furthermore, an annular groove is coaxially provided in the middle of the outer periphery of the inflatable pressure roller; the inflation tube is located in the annular groove; the upper end of the feed pressure roller is flush with the upper end of the inflatable pressure roller; the axial length of the feed pressure roller is less than the axial length of the inflatable pressure roller.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The O-type air bag with two independent air inlets is inflated simultaneously by two inflation components. When the rolled material passes through the two inflation components, it is automatically inflated to form a three-dimensional O-type cushioning packaging bag.

[0022] 2. Set independent feed rollers in the subsequent direction of the two pairs of inflatable rollers for traction and conveying. At the same time, set the cutter between the feed rollers and the inflatable rollers to cut off the excess end of the main inflation channel, so that the O-type air bag entering between the feed rollers is flat and wrinkle-free, ensuring that the two packaging edges of the O-type air bag are evenly stressed and fed synchronously, preventing twisting that could interrupt the automation process.

[0023] 3. The spacer groove, guide ramp, and tail plate are set up to provide an accurate and stable conveying route for the O-type air bag, further ensuring the synchronous and stable feeding of the two packaging sides of the O-type air bag. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an exploded view of the components of this utility model;

[0026] Figure 3 This is a schematic diagram of the front structure of the inflatable component of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure on the back of the inflatable component of this utility model;

[0028] Figure 5 This is a schematic diagram of the cutting blade and base of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the outer guide plate and the inner guide plate of this utility model;

[0030] Figure 7 This is a schematic diagram of the feeding route for the O-type packaging bag of this utility model.

[0031] In the diagram: 11. Housing; 12. Chassis; 121. Roll shaft; 13. Upper mounting plate; 131. Adjustment groove; 14. Cooling fan; 15. Control panel; 2. Inflation assembly; 21. Inflation roller; 211. Annular groove; 212. Inflation gear; 22. Feed roller; 221. Feed gear; 23. Inflation pipe; 231. Conical head; 232. Inflation hole; 233. Lateral air groove; 23 4. Branch pipe; 24. Cutting blade; 25. Base; 26. Pressure block; 31. Outer guide plate; 311. First guide slope; 312. Second guide slope; 32. Inner guide plate; 33. Tail plate; 34. Spacing groove; 4. Roll material; 41. Packaging edge; 411. Film; 51. Motor; 52. Feed sprocket; 53. Motor sprocket; 54. Pneumatic sprocket; 55. Tensioning sprocket; 56. Chain. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] See Figures 1-7 An inflation device for a dual-inflation-port O-type air bag includes a housing 11, an upper mounting plate 13 disposed on the upper end of the housing 11, and a base 12 disposed on the lower end of the right side wall of the housing 11. A roll shaft 121 for holding the O-type air bag roll is longitudinally disposed on the upper end of the base 12; a cooling fan 14 is disposed on the right side wall of the housing 11; the cooling fan 14 is located above the base 12. An operation panel 15 is inclinedly disposed at the front end of the housing 11.

[0037] The O-shaped inflatable bag, once inflated, becomes a three-dimensional cushioning packaging bag with openings at both ends and an O-shaped cross-section, used for packaging cylindrical goods such as wine bottles or cameras. The roll of the O-shaped inflatable bag has two packaging edges 41, which are two parallel air column film bags that are not connected; that is, the inflation ports on the two packaging edges 41 are not connected. Therefore, two inflation components are required.

[0038] Two inflation components 2 are provided on the upper end of the upper mounting plate 13; each inflation component 2 includes an inflation pipe 23 with one end provided on the upper end of the upper mounting plate 13, two pairs of inflation rollers 21 and a pair of feed rollers 22 arranged sequentially along the axial direction of the inflation pipe 23 on the upper end of the upper mounting plate 13; the outer walls of each pair of inflation rollers 21 and each pair of feed rollers 22 abut against each other.

[0039] The upper end of the inflation tube 23 is provided with a plurality of inflation holes 232 evenly distributed along the axial direction, and the inflation holes 232 are located between two pairs of inflation rollers 21; the end of the inflation tube 23 is provided with a conical head 231, and the conical head 231 is located at the right end of the inflation tube; an annular groove 211 is coaxially provided in the middle of the outer periphery of the inflation roller 21; the inflation tube 23 is located in the annular groove 211; the lower part of the O-shaped inflation bag is pressed into the bottom of the annular groove 211 by the inflation tube 23.

[0040] A cutting blade 24 is horizontally arranged between the feed roller 22 and the inflation roller 21; a lateral air groove 233 communicating with the inflation pipe 23 is provided on the side of the inflation pipe 23; one end of the cutting blade 24 is located in the lateral air groove 233, and the other end is located on the upper end of the upper mounting plate 13; the cutting blade 24 is inclined relative to the inflation pipe 23.

[0041] The upper end of the feed roller 22 is flush with the upper end of the inflation roller 21; the axial length of the feed roller 22 is less than the axial length of the inflation roller 21.

[0042] The upper mounting plate 13 is provided with two bases 25 at its upper end; each base 25 is provided with two pressure blocks 26 at its upper end; the inflation pipe 23 is provided with a horizontal branch pipe 234 at one end near the base 25; the branch pipe 234 and the cutting blade 24 are located on the same side of the inflation pipe 23; the branch pipe 234 and the cutting blade 24 are respectively clamped between the pressure blocks 26 and the bases 25.

[0043] Two outer guide plates 31 are symmetrically arranged on the upper end of the upper mounting plate 13; an inner guide plate 32 is arranged between the two outer guide plates 31 on the upper mounting plate 13; a tail plate 33 is longitudinally arranged on the side of the upper end of the inner guide plate 32 away from the end of the inflation tube 23; the tail plate 33 is located on the side of the feed pressure roller 22 away from the inflation pressure roller 21. The lower part of the outer guide plate 31, the lower part of the inner guide plate 32, and the upper mounting plate 13 form a cavity for enclosing and accommodating the two inflation components 2.

[0044] A gap is formed between the outer guide plate 31 and the inner guide plate 32 to form a spacer groove 34; the two inflation tubes 23 are respectively horizontally arranged at the bottom of the two spacer grooves 34; the right end of the outer guide plate 31 is provided with two guide slopes, namely a first guide slope 311 located at the upper end of the outer guide plate 31 and inclined downward, and a second guide slope 312 located on the outer side wall of the outer guide plate 31 and inclined towards the inflation tube 23; the end of the inflation tube 23 passes through the spacer groove 34.

[0045] The lower end of the pneumatic pressure roller 21 is coaxially provided with an inflatable gear 212; the two inflatable gears 212 of each pair of pneumatic pressure rollers 21 are mutually connected, and the lower end of one of the inflatable gears 212 is coaxially provided with an inflatable sprocket 54; the lower end of the feed pressure roller 22 is coaxially provided with a feed gear 221; the two feed gears 221 of each pair of feed pressure rollers 22 are mutually connected, and the lower end of one of the feed gears 221 is coaxially provided with a feed sprocket 52.

[0046] A motor 51 is installed inside the housing 11; a motor sprocket 53 is coaxially mounted on the output shaft of the motor 51; two tension sprockets 55 are slidably connected inside the housing 11; the sliding direction of the tension sprockets 55 is perpendicular to the length direction of the inflation tube 23; two pairs of adjustment slots 131 are provided through the upper mounting plate 13; a rotating seat is slidably connected to the lower end of the adjustment slot 131, and the tension sprockets 55 are rotatably connected to the lower end of the rotating seat.

[0047] A chain 56 is provided between each of the pneumatic sprockets 54, each of the feed sprockets 52, each of the tension sprockets 55, and the motor sprocket 53; the tension sprockets 55 and the motor sprocket 53 are located on the outer ring of the chain 56.

[0048] Instructions for use: Place the rolled O-type air bag 4 onto the roll shaft 121, start the device, the vacuum pump will work continuously, and air will be released out through the air inlet 232 and the side air groove 233. The motor 51 drives the air pressure roller 21 and the feed pressure roller 22 to rotate through the chain 46.

[0049] like Figure 7 As shown, the roll 4 is pulled out and the two packaging edges 41 with independent inflation ports are separated. Then, the two films 411 of each packaging edge 41 are separated, with the inflation port of the air column located between the two films 411. The inflation tube 23 is placed between the two connected films 411, with the upper end of the inflation tube 23 close to the inflation port. The packaging edge 41 is inserted between the two inflation rollers 21. The inflation rollers 21 rotate to co-extrude and pull the roll 4 forward. The packaging edge 41 is inflated as it passes through the inflation hole 232.

[0050] Initially, manual assistance is used to feed the packaging edge 41, ensuring it passes sequentially through two inflatable pressure rollers 21 and a feed roller 22. The feeding of both packaging edges 41 is synchronized before automation. After passing through the two inflatable pressure rollers 21, the main inflation channel on a film 411, driven by airflow, smoothly sways outwards without bending or wrinkling as it passes through the lateral air groove 233. It is then cut off by the cutting blade 24. The O-ring packaging bag is then fully inflated after passing through the feed roller 22.

[0051] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An inflator for a dual port O-shaped airbag, characterized by: The application relates to a cutting and inflating device for an O-shaped inflatable bag, which comprises a casing and two inflating assemblies arranged on the upper end of the casing; the inflating assembly comprises an inflating pipe arranged at the upper end of the casing, two pairs of inflating pressure rollers arranged on the casing in sequence along the axial direction of the inflating pipe, and a feeding pressure roller; the upper end of the inflating pipe is provided with a plurality of inflating holes uniformly distributed along the axial direction, and the inflating holes are located between the two pairs of inflating pressure rollers; a cutting knife is horizontally arranged between the feeding pressure roller and the inflating pressure roller; the side surface of the inflating pipe is provided with a lateral air groove in communication with the inflating pipe; one end of the cutting knife is located in the lateral air groove, and the other end is arranged at the upper end of the casing.

2. An inflator as defined in claim 1, wherein: The upper end of the casing is symmetrically provided with two outer guide plates; the inner guide plate is arranged between the two outer guide plates at the upper end of the casing; the gap between the outer guide plate and the inner guide plate forms a spacing groove; the two inflating pipes are respectively horizontally arranged at the bottom of the two spacing grooves.

3. An inflator as defined in claim 2, wherein: One end of the outer guide plate close to the end of the inflating pipe is provided with two guide inclined surfaces; one of the guide inclined surfaces is inclined downward at the upper end of the outer guide plate, and the other guide inclined surface is inclined to the inflating pipe at the outer side wall of the outer guide plate; the end of the inflating pipe passes out of the spacing groove.

4. An inflator as defined in claim 2, wherein: The upper end of the inner guide plate is longitudinally provided with a tail plate away from one side of the end of the inflating pipe; the tail plate is located away from the side of the feeding pressure roller away from the inflating pressure roller.

5. An inflator as defined in any one of claims 1 to 4, wherein: The lower part of the side wall of the casing close to the end of the inflating pipe is provided with a bottom disc; the upper end of the bottom disc is longitudinally provided with a roll shaft for placing an O-shaped inflatable bag roll; the end of the casing towards the roll shaft is provided with a cooling fan; the cooling fan is located above the bottom disc.

6. An inflator as defined in any one of claims 1 to 4, wherein: The lower end of the inflating pressure roller is coaxially provided with an inflating gear; the two inflating gears of each pair of inflating pressure rollers are connected with each other in transmission, and the lower end of one of the inflating gears is coaxially provided with an inflating sprocket; The lower end of the feeding pressure roller is coaxially provided with a feeding gear; the two feeding gears of each pair of feeding pressure rollers are connected with each other in transmission, and the lower end of one of the feeding gears is coaxially provided with a feeding sprocket; the casing is provided with a motor connected in transmission with the inflating sprocket and the feeding sprocket.

7. An inflator as defined in claim 6, wherein: The casing is slidably connected with two tension sprockets; the sliding direction of the tension sprocket is perpendicular to the length direction of the inflating pipe; a chain is arranged between each inflating sprocket, each feeding sprocket, each tension sprocket and the output shaft of the motor; the tension sprocket and the output shaft of the motor are located at the outer ring of the chain.

8. An inflator as defined in any one of claims 1 to 4, wherein: The upper end of the casing is provided with two bases; the upper end of each base is respectively provided with two pressing blocks; the inflating pipe and the cutting knife are respectively clamped between the pressing blocks and the bases.

9. An inflator as defined in claim 8, wherein: The end of the inflating pipe close to the base is horizontally provided with a branch pipe; the branch pipe is clamped between the adjacent base and the pressing block; the branch pipe is located between the cutting knife and the feeding pressure roller.

10. An inflator as defined in any one of claims 1 to 4, wherein: The air-filled pressure wheel has an annular groove coaxially arranged in the middle of the outer periphery; the air-filled tube is located in the annular groove; the upper end of the feeding pressure wheel is flush with the upper end of the air-filled pressure wheel; the axial length of the feeding pressure wheel is less than the axial length of the air-filled pressure wheel.

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