Composite packaging bag with locally reinforced handle holes and processing device

Abstract

The utility model provides a composite packaging bag with locally reinforced handle holes, the composite packaging bag comprises a bag body material and a handle hole reinforcing material, the handle hole reinforcing material is arranged at one end of the wide edge of the bag body material, the handle hole reinforcing material comprises two layers of heat sealing layer films and a core layer film between the two layers of heat sealing layer films, and the handle hole reinforcing material is of a folding structure; the processing device is used for processing the composite packaging bag with the handle holes locally reinforced and comprises a bag body material conveying part, a handle hole reinforcing material conveying part and a bag making heat sealing part, and the handle hole reinforcing material conveying part is arranged below the bag body material conveying part; therefore, the material cost is saved, the bearing capacity of the handle hole is improved, the machining efficiency is improved, and the machining cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing and manufacturing of soft plastic packaging products, in particular to a composite packaging bag with locally reinforced hand pulling hole and a processing device. BACKGROUND

[0002] At present, composite films and bags in soft plastic packaging have been widely used in the packaging field. Among the composite films and bags, there is a kind of composite packaging bag with a hand pulling hole, which is popular in the market and widely used because it is convenient to carry. The "composite" in the composite packaging bag with a hand pulling hole means that the packaging material is not composed of a single layer of material, but is bonded together by adhesive coating technology of two or more layers of films with different properties. The simplest and most typical composite film is bonded by "surface film" and "heat sealing layer film" through "glue layer". The "surface film" usually has excellent heat resistance and printing dimensional stability (such as polyester film, nylon film, etc.); the "heat sealing layer film" usually has excellent heat sealing performance (such as polyethylene film, polypropylene film, etc.). The heat sealing layer film can be melted into one body to produce heat sealing effect when heated. This property is not possessed by the "surface film". In this way, the composite film directly contacts the heat sealing knife of the bag making machine when heat sealing, but it will not stick to the heat sealing knife because of heating. Only the heat is conducted to the heat sealing layer film. In this way, the heat sealing of the composite film can be realized and the bag making process can be successfully completed.

[0003] Although the composite packaging bag with a hand pulling hole in the prior art can realize the functions of containing contents and being convenient to carry, it still has some problems and shortcomings. The main performance is that in the material selection and design of the existing technology of the composite packaging bag with a hand pulling hole, the material performance of the bag itself is sufficient for containing contents, but the top hand pulling hole is easy to break because people have to bear the dynamic quality of the entire packaging contents when carrying or walking, which leads to packaging failure or some adverse market feedback and even serious economic losses.

[0004] In order to overcome the above-mentioned disadvantages, the traditional solution is to greatly thicken the material of the whole bag or to additionally install a plastic handle at the hand hole. The solution of greatly thickening the material of the whole bag tends to greatly increase the cost and is not completely necessary because the material performance of the main body of the bag except the hand hole part is sufficient for containing the contents. The solution of additionally installing a plastic handle at the hand hole also greatly increases the cost, and in addition to the cost of the handle, additional labor cost for installing the handle is generally required, which is not conducive to the automatic production and rapid delivery of products. Due to the problems and defects of the composite packaging bag with a hand hole in the prior art, and the traditional solutions are not satisfactory.

[0005] Therefore, the prior art needs to be further improved and improved. Utility model content

[0006] The application provides a composite packaging bag with locally reinforced hand hole and a processing device to solve the problems of high processing cost, poor carrying capacity and difficult processing of the composite packaging bag in the prior art.

[0007] The technical scheme adopted by the application is:

[0008] The application provides a composite packaging bag with locally reinforced hand hole, which comprises a bag body material and a hand hole reinforcing material. The hand hole reinforcing material is arranged at one end of the wide edge of the bag body material. The hand hole reinforcing material comprises two heat-sealing layer films and a core layer film therebetween, and is in a folded structure.

[0009] The application also provides a processing device for a composite packaging bag with locally reinforced hand hole, which is used for processing the composite packaging bag with locally reinforced hand hole. The processing device comprises a bag body material conveying part, a hand hole reinforcing material conveying part and a bag-making heat-sealing part. The hand hole reinforcing material conveying part is arranged below the bag body material conveying part.

[0010] As a preferred embodiment of the application, the hand hole reinforcing material conveying part comprises a reinforcing material unwinding roll, a folding frame and a folder. The three are sequentially arranged. A constant tension motor is arranged on the side of the reinforcing material unwinding roll. The conveying line of the hand hole reinforcing material conveying part is provided with a plurality of guide rollers.

[0011] As a preferred embodiment of the application, the bag body material conveying part comprises a bag body material unwinding roll, a conveying frame and a double-layer guide roller. The three are sequentially connected. The double-layer guide roller comprises an upper guide roller and a lower guide roller. A folder is arranged between the upper guide roller and the lower guide roller.

[0012] As a preferred embodiment of the present application, a blade is arranged in the conveying frame, and the blade cuts the bag material into two pieces, and the upper and lower bag materials are conveyed along the upper guide roller and the lower guide roller, respectively.

[0013] As a preferred embodiment of the present application, the bag-making heat-sealing part comprises a device wall plate and a longitudinal heat-sealing knife, a hand hole puncher, a transverse heat-sealing knife, a traction roller and a forming knife arranged above the device wall plate, the longitudinal heat-sealing knife, the hand hole puncher, the transverse heat-sealing knife, the traction roller and the forming knife are arranged in sequence, and the longitudinal heat-sealing knife is arranged behind the double-layer guide roller.

[0014] As a preferred embodiment of the present application, the hand hole reinforcing material and the bag material are conveyed synchronously, and the hand hole reinforcing material is arranged below the hand hole puncher.

[0015] As a preferred embodiment of the present application, the longitudinal heat-sealing knife heat-seals the top edge or the bottom edge of the composite packaging bag, and the transverse heat-sealing knife heat-seals the two side edges of the composite packaging bag.

[0016] As a preferred embodiment of the present application, the forming knife cuts the composite packaging bag to the required size.

[0017] Due to the adoption of the above technical solutions, the present application has the following technical effects:

[0018] 1. The present application provides a composite packaging bag with locally reinforced hand hole, which separately arranges hand hole reinforcing material in the hand hole area to improve the anti-pulling performance of the hand hole, thereby improving the performance of the packaging bag and optimizing the consumer experience; and compared with the traditional improvement scheme of greatly increasing the overall material thickness of the bag to improve the anti-pulling performance of the hand hole, and the scheme of setting a separate plastic hand handle to improve the strength, since the present application adopts a local reinforcement scheme, the hand hole reinforcing material is only applied to the top heat-sealing area of the bag, so it is more targeted and saves materials, thereby avoiding the substantial increase in cost due to the overall material thickening of the bag.

[0019] 2. The present application also provides a processing device for a composite packaging bag with locally reinforced hand hole, which arranges a blade in the conveying frame of the bag material conveying part to cut the bag material into two pieces and form upper and lower pieces, realizes the forming of the bag body, and arranges a folder between the upper guide roller and the lower guide roller to ensure that the folded hand hole reinforcing material and the bag material are conveyed synchronously, which not only has a simple structure, but also has lower processing cost and higher processing efficiency compared with the packaging bag with a separate plastic hand handle. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are intended to provide further understanding of the present application, form a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 A general structure schematic diagram of a composite packaging bag with local reinforcement of hand pulling holes is provided in the present application;

[0022] Figure 2 A structure schematic diagram of the material of the composite packaging bag in the prior art is provided;

[0023] Figure 3 A forming schematic diagram of a composite packaging bag with local reinforcement of hand pulling holes is provided in the present application;

[0024] Figure 4 A general structure schematic diagram of a processing device of a composite packaging bag with local reinforcement of hand pulling holes is provided in the present application;

[0025] Figure 5 A structure schematic diagram of a hand pulling hole reinforcing material conveying part of a processing device of a composite packaging bag with local reinforcement of hand pulling holes is provided in the present application.

[0026] Reference signs:

[0027] 10 surface film; 11 adhesive layer; 12 heat sealing layer film; 13 side heat sealing area; 14 top heat sealing area; 15 hand pulling hole; 16 core layer film; 17 interlayer structure; 18 hand pulling hole reinforcing material; 19 bag body material;

[0028] 20 bag body material conveying part; 21 bag body material unwinding roll; 22 conveying frame; 23 double-layer guide roller; 231 upper guide roller; 232 lower guide roller;

[0029] 30 hand pulling hole reinforcing material conveying part; 31 reinforcing material unwinding roll; 32 folding frame; 33 folder; 34 constant tension motor; 35 guide roller;

[0030] 40 bag making heat sealing part; 41 equipment wall plate; 42 longitudinal heat sealing knife; 43 hand pulling hole puncher; 44 transverse heat sealing knife; 45 traction roller; 46 forming knife. DETAILED DESCRIPTION

[0031] In order to more clearly explain the overall concept of the present application, the following will be described in detail with reference to the drawings.

[0032] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0033] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0036] like Figures 1 to 5 As shown, this application provides a composite packaging bag with partial reinforcement of the handle hole 15. The composite packaging bag includes a bag body material 19 and a handle hole 15 reinforcement material 18. The handle hole 15 reinforcement material 18 is disposed at one end of the wide side of the bag body material 19. The handle hole 15 reinforcement material 18 includes two heat-sealing film layers 12 and a core film 16 between them, and has a folded structure.

[0037] Among them, such as Figure 1 As shown, compared to the structure in the prior art, the composite packaging bag of this application has a reinforcing material 18 for the handle hole 15 near the area of ​​the handle hole 15; from Figure 3As can be seen, the hand hole 15 reinforcing material 18 is a "sandwich" type structure, two layers of heat-sealable film surround the core layer film 16, and then folded by the processing device to form a more secure hand hole 15 reinforcing material 18, on the one hand, the uppermost and lowermost two layers of the hand hole 15 reinforcing material 18 are homogenous heat-sealable film, so that the heat-sealable material after being folded in the middle can realize effective heat-sealing of itself, and the uppermost and lowermost two layers of the interlayer structure 17 after being folded in the middle are still heat-sealable film, so that the hand hole 15 reinforcing material 18 after being folded in the middle can be heat-sealed as a whole between the front and back materials of the bag with hand hole 15, on the other hand, the core layer film 16 has good toughness to improve the strength during lifting.

[0038] Furthermore, as Figure 2 shown, the composite packaging bag in the prior art is generally formed by adhesive coating technology to bond two or more layers of film with different properties. The simplest and most typical composite film is formed by bonding the surface layer film 10 and the heat-sealable layer film 12 through the adhesive layer 11.

[0039] As can be understood, during the processing of the conventional composite bag, the typical features such as the side heat-seal area 13, the top heat-seal area 14, and the hand hole 15 with hollow in the top wider heat-seal area are generally formed, and since the heat-sealable layer film 12 has good heat-sealing performance (such as polyethylene film, polypropylene film, etc.), the heat-sealable layer film 12 of the present application can be similar to the heat-sealable layer film 12 material in the prior art, and for the core layer film 16 in the present application, a typical nylon film can be used to improve the toughness of the hand hole 15 area and ensure sufficient strength.

[0040] The present application also provides a processing device for a composite packaging bag with locally reinforced hand hole 15, which is used for processing the composite packaging bag with locally reinforced hand hole 15, and includes a bag body material 19 conveying part 20, a hand hole 15 reinforcing material 18 conveying part 30, and a bag-making heat-sealing part 40. The hand hole 15 reinforcing material 18 conveying part 30 is arranged below the bag body material 19 conveying part 20.

[0041] As shown in Figure 4 , the hand hole 15 reinforcing material 18 conveying part 30 includes a reinforcing material unwinding roll 31, a folding frame 32, and a folder 33, which are sequentially arranged. The reinforcing material unwinding roll 31 is provided with a constant tension motor 34 on the side, and the conveying line of the hand hole 15 reinforcing material 18 conveying part 30 is provided with a plurality of guide rollers 35.

[0042] In order to ensure the output effect, the guide rollers 35 are not uniformly spaced, as Figure 5As shown, the constant tension motor 34 can provide a stable unwinding tension to the hand hole 15 reinforcing material 18, the spacing and vertical height of the guide rollers 35 are not consistent, so that the folding material rack 32 can realize the turning of the reinforcing material in space, and the hand hole 15 reinforcing material 18 is folded through the folder 33.

[0043] Further, the bag body material 19 conveying part 20 includes a bag body material 19 unwinding roll 21, a conveying rack 22 and a double-layer guide roller 23, which are sequentially connected, and the double-layer guide roller 23 includes an upper guide roller 231 and a lower guide roller 232, and the folder 33 is arranged between the upper guide roller 231 and the lower guide roller 232. Among them, the conveying rack 22 is provided with a blade, which cuts the bag body material 19 into two pieces, and the upper and lower bag body materials 19 are conveyed along the upper guide roller 231 and the lower guide roller 232 respectively.

[0044] Specifically, in use, the bag body material 19 and the hand hole 15 reinforcing material 18 required in the production of bags are prepared in advance, and typical bag body material 19 is a composite roll of polyester film / polyethylene film, and typical hand hole 15 reinforcing material 18 is a composite roll with a "sandwich" structure of polyethylene film / nylon film / polyethylene film.

[0045] The bag body material 19 and the hand hole 15 reinforcing material 18 can be prepared by a composite device commonly used in the field of soft plastic packaging. In particular, the hand hole 15 reinforcing material 18 should also be cut to an appropriate width by a slitting machine after being compounded and before being made into bags. The so-called appropriate width should be equal to twice the height of the preset bag top heat sealing area 14.

[0046] After the material preparation and placement are completed, the bag body material 19 is placed in the bag body material 19 unwinding roll 21, and is conveyed to the conveying rack 22 through the guide roller 35. Since the conveying rack 22 is provided with a blade, it can cut the bag body material 19 in half and form upper and lower pieces; the upper and lower bag body materials 19 are respectively threaded through the upper guide roller 231 and the lower guide roller 232, and are sequentially threaded forward.

[0047] At the same time, the hand hole 15 reinforcing material 18 is placed in the reinforcing material unwinding roll 31, and is pulled out by the constant tension motor 34 with appropriate tension, and is sequentially threaded through each guide roller 35, and then changes the feeding direction of the reinforcing material through the folding material rack 32, and is threaded through each guide roller 35 to the folder 33, so as to realize the folding of the material and finally be introduced as a reinforcing interlayer between the two pieces of bag body material 19 at the upper guide roller 231 and the lower guide roller 232.

[0048] It can be understood that, for the positional relationship between the hand hole 15 reinforcing material 18 and the bag body material 19, the running speed can be set through a single-chip microcomputer or PLC program, and the carrying position can be set through the guide roller 35, so as to ensure that the hand hole 15 reinforcing material 18 is located at the area of the hand hole 15 of the bag body material 19.

[0049] In an optional embodiment, the span of the hand hole 15 reinforcing material 18 is 1.8-2.0 times the height of the top heat sealing area 14 of the composite packaging bag with hand hole 15, so as to ensure that the hand hole 15 reinforcing material 18 is similar to the height of the top heat sealing area 14 of the composite packaging bag after being folded.

[0050] Further, the bag-making heat sealing part 40 comprises an equipment wall plate 41, a longitudinal heat sealing knife 42, a hand hole 15 puncher 43, a transverse heat sealing knife 44, a traction roller 45 and a forming knife 46 arranged above the equipment wall plate 41, the longitudinal heat sealing knife 42, the hand hole 15 puncher 43, the transverse heat sealing knife 44, the traction roller 45 and the forming knife 46 are sequentially arranged, and the longitudinal heat sealing knife 42 is arranged behind the double-layer guide roller 23.

[0051] As shown in Figure 4 The equipment wall plate 41 can be arranged at a certain height to facilitate the arrangement of the hand hole 15 reinforcing material 18 conveying part 30, and a protective shell can be arranged around the hand hole 15 reinforcing material 18 conveying part 30 and the bag body material 19 conveying part 20 to ensure the safety and cleanliness of the processing environment and provide a safe working environment for the surrounding workers.

[0052] During the conveying process, the hand hole 15 reinforcing material 18 and the bag body material 19 should be conveyed synchronously under the action of the traction roller 45, and the hand hole 15 reinforcing material 18 is driven to be located below the hand hole 15 puncher 43, before this process, the temperature program of the longitudinal heat sealing knife 42 and the transverse heat sealing knife 44 is started, and the bag-making size, heat sealing size and bag-making rhythm are set in advance, after the setting is completed, the bag body material 19 and the hand hole 15 reinforcing material 18 are started to be conveyed forward, as shown in Figure 4 The longitudinal heat sealing knife 42 can realize the heat sealing of the top of the bag (it can be understood that, in order to facilitate the manufacturer of the required packaging bag to fill the goods into the bag, it is necessary to reserve a placing opening at the top or bottom of the bag, and after the manufacturer assembles, the placing opening is heat sealed by itself, in order to facilitate the opening of the packaging bag, a easy-to-tear opening can be arranged), the hand hole 15 puncher will impact the hollow hand hole 15 in the top heat sealed area, the bag-making transverse heat sealing knife 44 will realize the heat sealing of the two sides of the bag, and finally the forming knife 46 will position and cut the heat sealed material according to the preset bag-making rhythm, so as to finally obtain the composite packaging bag with local reinforcing structure at the hand hole 15.

[0053] It should be noted that the processing equipment of the present application should be provided with a controller, which can be provided with a PLC or a single-chip microcomputer, and the size of the bag body or other operation information can be manually or automatically preset to ensure the convenience of equipment operation.

[0054] The places not mentioned in the present application can be realized by using or referring to the existing technology.

[0055] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0056] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the scope of claims of the present application.

Claims

1. A composite bag reinforced locally at the handhold aperture, characterized in that, The composite packaging bag comprises a bag body material and a hand hole reinforcing material, the hand hole reinforcing material is arranged at one end of the wide side of the bag body material, the hand hole reinforcing material comprises two heat sealing layer films and a core layer film between the two heat sealing layer films, and is in a folded structure.

2. An apparatus for processing a composite packaging bag partially reinforced at a handhold hole for processing the composite packaging bag partially reinforced at the handhold hole according to claim 1, characterized by The processing device comprises a bag body material conveying part, a hand hole reinforcing material conveying part and a bag making heat sealing part, the hand hole reinforcing material conveying part is arranged below the bag body material conveying part.

3. A device for processing a composite bag with reinforced hand holes according to claim 2, characterized in that, The hand hole reinforcing material conveying part comprises a reinforcing material unwinding roll, a folding frame and a folder, which are sequentially arranged, a constant tension motor is arranged on the side of the reinforcing material unwinding roll, and a plurality of guide rollers are arranged on the conveying line of the hand hole reinforcing material conveying part.

4. A device for processing a composite bag with reinforced hand holes according to claim 3, characterized in that, The bag body material conveying part comprises a bag body material unwinding roll, a conveying frame and a double-layer guide roller, which are sequentially connected, the double-layer guide roller comprises an upper guide roller and a lower guide roller, and the folder is arranged between the upper guide roller and the lower guide roller.

5. A device for processing a composite bag with reinforced hand holes according to claim 4, characterized in that, A blade is arranged in the conveying frame, the blade cuts the bag body material into two pieces, and the upper and lower bag body materials are conveyed along the upper guide roller and the lower guide roller respectively.

6. A device for processing a composite bag with reinforced hand holes according to claim 5, characterized in that, The bag making heat sealing part comprises an equipment wall plate and a longitudinal heat sealing cutter arranged above the equipment wall plate, a hand hole puncher, a transverse heat sealing cutter, a traction roller and a forming cutter, the longitudinal heat sealing cutter, the hand hole puncher, the transverse heat sealing cutter, the traction roller and the forming cutter are sequentially arranged, the longitudinal heat sealing cutter is arranged behind the double-layer guide roller.

7. A device for processing a composite bag with reinforced hand holes according to claim 6, characterized in that, The hand hole reinforcing material and the bag body material are synchronously conveyed, and the hand hole reinforcing material is located below the hand hole puncher.

8. A device for processing a composite bag with reinforced hand holes according to claim 7, characterized in that, The longitudinal heat sealing cutter heat seals the top edge or the bottom edge of the composite packaging bag, and the transverse heat sealing cutter heat seals the two side edges of the composite packaging bag.

9. A device for processing a composite bag with reinforced hand holes according to claim 8, characterized in that, The forming cutter cuts the composite packaging bag to a required size.

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