Novel environment-friendly paper protection bag manufacturing equipment

Abstract

The novel environment-friendly paper protection bag manufacturing equipment comprises plane manufacturing equipment for manufacturing a plane structure, the plane manufacturing equipment comprises an inner layer unwinding module, an outer layer unwinding module and an inner core layer unwinding module which are used for unwinding, and paper materials unwound by the plane manufacturing equipment are sequentially stacked from inside to outside and located on a working platform to be conveyed in the conveying direction; the tension adjusting device is used for adjusting tension; the stretching module is used for stretching the die cutting paper into a net-shaped three-dimensional structure; the first glue applying modules are used for applying glue to the bonding positions of all the layers of paper materials, so that the multiple layers of paper materials are connected together; and the first pressing module is used for pressing the gluing position to which the glue is applied, so that a plane structure is formed. The technical problem that an existing manufacturing device cannot complete manufacturing of a protection bag with an inner core layer is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging of express delivery, postal logistics, in particular to a new type of paper protective bag manufacturing equipment. BACKGROUND

[0002] In the field of packaging, postal express delivery, paper packaging bags are widely used, and paper packaging bags have the advantages of low cost and recyclability. The paper packaging bags currently used on the market have a buffer protection layer, which protects the contents inside. Common buffer protection layers include paper filler, plastic bubble film, and inflatable bubble, but these fillers more or less pollute the environment, for example, paper filler causes air dust pollution during production, and plastic bubble film or inflatable bubble is not easy to separate and recycle after use, and is not easy to degrade after being discarded.

[0003] Therefore, a new protective bag with an inner core layer is developed, which is made of paper material. The protective bag needs special equipment to produce during production. SUMMARY

[0004] The present application aims to provide a new type of paper protective bag manufacturing equipment, which aims to solve the technical problem of the existing manufacturing equipment that cannot complete the production of protective bags with an inner core layer.

[0005] The present application provides a new type of paper protective bag manufacturing equipment for manufacturing protective bags, which is made of a planar structure, the planar structure includes an inner layer, an outer layer, and an inner core layer sandwiched between the inner layer and the outer layer for buffering, the inner core layer includes at least one layer of gasket, the gasket is formed into a net-like three-dimensional structure by stretching the die-cut paper after die-cutting from the paper material; The manufacturing equipment includes a planar manufacturing equipment for manufacturing a planar structure, the planar manufacturing equipment includes: A rack, the rack includes a workbench arranged along a conveying direction; An inner layer unwinding module and an outer layer unwinding module for unwinding are arranged on the rack, and at least one inner core layer unwinding module is arranged between the inner layer unwinding module and the outer layer unwinding module, the inner core layer unwinding module is used for unwinding The die-cut paper, the inner layer unwinding module, the inner core layer unwinding module and the outer layer unwinding module are arranged in sequence along the conveying direction, the paper material unwound by them is stacked from inside to outside, and is conveyed on the workbench to the conveying direction; A first tension adjusting device is arranged between the inner layer unwinding module and the working platform, a second tension adjusting device is arranged between the inner core layer unwinding module and the working platform, and a third tension adjusting device is arranged between the outer layer unwinding module and the working platform. The first, second and third tension adjusting devices are respectively used to adjust the tension of the inner layer paper, the die-cut paper and the outer layer paper. A stretching module is arranged at the rear end of the second tension adjusting device. The stretching module is used to stretch the die-cut paper into the net-like three-dimensional structure, form the cushion and deliver to the working platform. A plurality of first sizing modules are arranged on the rack and face the working platform. The inner layer paper, the cushion and the outer layer paper correspond to at least one of the first sizing modules respectively. The first sizing modules are used to size the bonding position of each layer of paper, so as to connect the multiple layers of paper together. A first pressing module is arranged at the rear end of the third tension adjusting module. The first pressing module is used to press the sized bonding position, so as to form the planar structure.

[0006] The manufacturing device includes two planar manufacturing devices. The planar structures manufactured by the two planar manufacturing devices are stacked together along the conveying direction and are conveyed synchronously. The manufacturing device further includes: A second sizing module is used to size the edge surface of any one of the planar structures, so as to bond the planar structure to the edge of another planar structure. A second pressing module is used to press the sized position of the two planar structures. A cutting module is used to cut the two pressed planar structures together into a plurality of bag units. A glue folding module is used to glue one side edge of the bag unit and fold it.

[0007] ​​In the manufacturing equipment of this invention, firstly, the inner layer, inner core layer, and outer layer paper are stacked together sequentially from the inside out. Each layer is individually glued before stacking. After stacking, they are pressed together by a first pressing module located at the rear end of the work platform, thereby forming a planar structure with an inner core layer. This planar structure constitutes a protective bag. Specifically, after the planar structure overlaps with another already manufactured planar structure, glue is applied to the surface of one of the planar structures, and the glued areas are pressed, cut, and folded to form a protective bag with two bonded planar structures. During the production of the inner core layer, the die-cut paper from the inner core layer unwinding module is first conveyed to the stretching module in an unstretched state. After being stretched in the stretching module, a mesh-like three-dimensional structure is formed as a pad. This pad is then used as a clamp between the inner core layer paper and the inner and outer layers, and conveyed together to the work platform to form a planar structure. The inner core layer with the three-dimensional mesh pad provides better protection.

[0008] Furthermore, the equipment can be customized to set the number of padding layers in the inner core layer according to the needs of the planar structure, and can be equipped with multiple inner core layer unwinding modules of any number, making it highly adaptable.

[0009] After the first gluing module of the equipment applies the glue, the glued position is pressed by the first pressing module. Then, the second gluing module applies the glue to the planar structure at the same gluing position, and the second pressing module presses the glued position again. This ensures multiple gluing and pressing at the same gluing position, resulting in a protective bag with high strength, not easy to break, and of high quality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the planar structure of the present invention; Figure 2 This is a schematic diagram of the die-cutting paper of the present invention; Figure 3 This is a schematic diagram of the padding structure after the die-cut paper is stretched according to the present invention; Figure 4 This is a schematic diagram of the overall structure of the protective bag manufacturing equipment of the present invention; Figure 5 and Figure 6 This is a schematic diagram of the planar fabrication equipment of the present invention; Figure 7 This is a schematic diagram of the structure of the first tension adjustment device of the present invention; Figure 8 This is a schematic diagram of the stretching module structure of the present invention; Figure 9 This is a schematic diagram of the structure of the first adhesive application module of the present invention; Figure 10 This is a schematic diagram of the first pressing module structure of the present invention; Figure 11This is a schematic diagram of part of the protective bag manufacturing equipment of the present invention; Figure 12 This is a schematic diagram of the cutting module structure of the present invention; Figure 13 This is a schematic diagram of the adhesive coating and folding module structure of the present invention. Detailed Implementation

[0011] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings: Please refer to Figures 1 to 3 This invention discloses a novel environmentally friendly paper protective bag manufacturing equipment 100. This equipment 100 is used to manufacture protective bags, which are formed from a planar structure 10a. The planar structure 10a includes an inner layer 11a, an outer layer 13a, and an inner core layer 12a sandwiched between the inner layer 11a and the outer layer 13a to provide cushioning. The inner core layer 12a includes at least one padding layer 121a, which is a mesh-like three-dimensional structure formed by stretching die-cut paper 14a after die-cutting.

[0012] See Figure 4 The fabrication equipment 100 includes two planar fabrication devices 200, which are arranged opposite to each other. The planar fabrication devices 200 are used to fabricate planar structures 10a.

[0013] See Figure 5 and Figure 6 Specifically, the planar fabrication equipment 200 includes a frame 21, which includes a work platform 211 arranged along the conveying direction. In a preferred embodiment of the present invention, the frame 21 is designed with upper and lower layers, wherein the upper layer can be equipped with peripheral devices and the lower layer is the work platform 211, which makes the equipment compact, occupies little space, and saves resources.

[0014] The planar fabrication equipment 200 also includes: an inner unwinding module 221, an inner core unwinding module 223, an outer unwinding module 222, a first tension adjusting device 231, a second tension adjusting device 232, a third tension adjusting device 233, and a stretching module 24.

[0015] Specifically, the inner unwinding module 221, the inner core unwinding module 223, and the outer unwinding module 222 are all disposed on the upper structure of the frame 21. The inner core unwinding module 223 is disposed between the inner unwinding module 221 and the outer unwinding module 222, and is mainly used for unwinding the die-cut paper 14a. The inner unwinding module 221, the inner core unwinding module 223, and the outer unwinding module 222 are arranged sequentially along the conveying direction, and the unwound paper is stacked sequentially from the inside to the outside, that is, stacked together on top of the working platform 211. The stacked unwound paper is conveyed on the working platform 211 in the conveying direction.

[0016] The first tension adjusting device 231, the second tension adjusting device 232, and the third tension adjusting device 233 are respectively used to adjust the tension of the inner paper, the die-cut paper 14a, and the outer paper to prevent the conveyed paper from wrinkling or folding.

[0017] The first tension adjustment device 231 is disposed between the inner unwinding module 221 and the working platform 211; the second tension adjustment device 232 is disposed between the inner core unwinding module 223 and the working platform 211; and the third tension adjustment device 233 is disposed between the outer unwinding module 222 and the working platform 211.

[0018] See Figure 7 Furthermore, the first tension adjusting device 231 is the same as the third tension adjusting device 233, which includes a swing arm 2310 with one end positioned on the frame 21 and rotating relative to the frame 21, a plurality of rotating rollers 2311 disposed on the swing arm 2310, and a rotating rod 2312 positioned on the frame 21 and capable of rotation. The unwound inner layer paper and the outer layer paper are respectively inserted between the plurality of rotating rods 2312 and the plurality of rotating rollers 2311, thereby realizing adaptive tension adjustment.

[0019] Furthermore, the second tension adjusting device 232 adjusts the tension of the die-cut paper 14a unwound from the inner core layer 12a, so that the die-cut paper 14a is in an unstretched state before passing through the stretching module 24. The second tension adjusting device 232 includes a slide rail, a slider mounted on the slide rail, a connecting roller positioned on the slider and rotating thereon, and a servo motor that drives the slider to slide on the slide rail, through which the die-cut paper 14a passes. In this embodiment, the servo motor automatically controls the sliding of the slider during the feeding of the die-cut paper 14a. When the slider slides slightly, it drives the connecting roller on the slider to move, intelligently adjusting the tension. At this time, the tension clamped on the die-cut paper 14a should be less than the minimum tension value required for the die-cut paper 14a to be stretched.

[0020] like Figure 8 The stretching module 24 is located at the rear end of the second tension adjustment device 232. The stretching module 24 is used to stretch the die-cut paper 14a into the mesh three-dimensional structure, form the pad 121a, and transport it to the working platform 211.

[0021] Further, the stretching module 24 includes a transition roller 241 and a differential roller 242, wherein the transition roller 241 is disposed at the rear end of the second tension adjusting device 232 for receiving unstretched die-cut paper 14a; the differential roller 242 is disposed between the transition roller 241 and the working platform 211, and the rotational speed of the differential roller 242 is greater than that of the transition roller 241, thereby stretching the die-cut paper 14a passing through the transition roller 241 into the mesh three-dimensional structure before entering the differential roller 242, thereby forming the pad 121a.

[0022] In this embodiment, the tension on the die-cut paper 14a caused by the speed difference between the differential roller 242 and the transition roller 241 is greater than the minimum tension required for the die-cut paper 14a to be stretched into a mesh-like three-dimensional structure, thereby stretching the die-cut paper 14a. The stretched die-cut paper 14a forms a pad 121a, which enters the working platform 211 after passing through the stretching module 24 and is located between the inner layer 11a and the outer layer 13a, and is conveyed together.

[0023] See Figure 9 and Figure 10 The device further includes multiple first gluing modules 25 and first pressing modules 26. The first gluing modules 25 are disposed on the frame 21 and face the working platform 211. The inner paper, the pad 121a and the outer paper each correspond to at least one first gluing module 25. The first gluing modules 25 are used to apply glue to the bonding position of each layer of paper, thereby connecting multiple layers of paper together.

[0024] Further, the first gluing module 25 includes: a support 251 positioned on the frame 21 and reciprocating relative to the work platform 211 along the conveying direction; two horizontal nozzles 252 and a vertical nozzle 253 mounted on the support 251, the two horizontal nozzles 252 being located on both sides of the support 251 respectively; the horizontal nozzles 252 are used to apply glue to the paper on the work platform 211 in the vertical conveying direction, and the vertical nozzles 253 apply glue to the centerline of the paper on the work platform 211 in the conveying direction.

[0025] In this embodiment, the inner layer 11a, inner core layer 12a, and outer layer 13a are conveyed together in a step-by-step manner. After one step of conveying stops, the support 251 moves from the starting point of the edge of the working platform 211 in a vertical conveying direction to the other edge of the working platform 211. At the same time, the two horizontal nozzles 252 spray glue during the movement, thereby spraying two parallel rows of glue spraying tracks on the inner layer 11a, inner core layer 12a, and outer layer 13a. Then, the conveying continues in a step-by-step manner. During the step-by-step process, the vertical nozzles 253 open and spray glue along the center line of the conveying direction. The first glue application module 25 causes the paper material to form an "H"-shaped glue application track, and the glue application tracks of the inner layer 11a, inner core layer 12a, and outer layer paper material overlap.

[0026] The first pressing module 26 is located at the rear end of the third tension adjusting device 233 and is used to press the adhesive application position to form a planar structure 10a.

[0027] Further, the first pressing module 26 includes a plurality of horizontal hot pressing units 261 and at least one vertical hot pressing unit 262; the plurality of horizontal hot pressing units 261 are spaced apart on the working platform 211, and the spacing between two adjacent horizontal hot pressing units 261 is the same as the spacing between the two horizontal nozzles 252; the horizontal hot pressing units 261 are used to press the position where the horizontal nozzles 252 apply adhesive, that is, to press the two vertical lines of the "H"; the vertical hot pressing units 262 are used to press the center line position where the vertical nozzles 253 apply adhesive, that is, to press the middle horizontal line position of the "H".

[0028] At this point, the planar structure 10a produced by the planar fabrication equipment 200 is complete. Specifically, when two planar structures 10a are used to form a protective bag, they are stacked together along the conveying direction and conveyed synchronously. Afterwards, adhesive is applied to at least one edge surface of the conveyed planar structures 10a, they are pressed together, cut to form a bag unit, and then adhesive is applied to the bottom edge of the bag unit. The bag is then folded and folded to form a protective bag. (See reference...) Figure 11 The manufacturing equipment 100 further includes: a second gluing module 12, a second pressing module 13, a cutting module 14, and a gluing and folding module 15.

[0029] Specifically, the second adhesive application module 12 is used to apply adhesive to the edge surface of any one of the planar structures 10a, thereby bonding the edge of the planar structure 10a to the edge of the other planar structure 10a. In this embodiment, the position of adhesive application is exactly the same as the position of adhesive application on the planar structure 10a by the first adhesive application module 25, and the structure of the second adhesive application module 12 is also exactly the same as that of the first adhesive application module 25.

[0030] The second pressing module 13 is used to press the two planar structures 10a at the glue application positions; the second pressing module 13 has the same structure and pressing position on the planar structure 10a as the first pressing module 26.

[0031] After being pressed together by the second pressing module 13, the two planar structures 10a form multiple continuously connected "H"-shaped strip structures. The two planar structures 10a are connected together at the two vertical sides and one horizontal side of the "H" shape, forming a double bag body with one end open and the bottom connected together. The bottom of the connection is the horizontal line of the "H", and the opening positions are the upper and lower ends of the "H" respectively. Then, the two pressed planar structures 10a are cut together by the cutting module 14 to form multiple bag units.

[0032] At this point, the bag unit is composed of multiple separate individual bags, with each individual bag, namely the "H"-shaped double bag, being cut along the center horizontal line.

[0033] like Figure 12 Specifically, the cutting module 14 includes a horizontal cutting blade 141 and a vertical cutting blade 142. The horizontal cutting blade 141 is used to cut at the glue application position in the vertical conveying direction; the vertical cutting blade 142 is used to cut at the glue application position at the center line of the conveying direction.

[0034] See Figure 13 Furthermore, the adhesive-applying and folding module 15 is used to apply adhesive to one side of the bag body unit and fold and press it to form the bottom of the protective bag.

[0035] In this embodiment, the glue is applied to the bag unit in a horizontal "H" shape. After applying the glue, the bag unit is folded and pressed to both sides along the center line of the work platform 211 to form a protective bag. The glue application and folding module 15 includes a glue application unit 151 and a folding and pressing unit 152. The glue application unit 151 is used to apply glue to the bottom edge surface of the bag unit located at the center line. The folding and pressing unit 152 folds and presses the bottom edge of the glued area applied by the glue application unit 151.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A novel environmentally friendly paper protective bag manufacturing equipment, used for producing protective bags, characterized in that, The protective bag is made of a planar structure, which includes an inner layer, an outer layer, and an inner core layer sandwiched between the inner and outer layers to provide cushioning. The inner core layer includes at least one padding layer, which is a mesh-like three-dimensional structure formed by stretching the die-cut paper after die-cutting. The fabrication equipment includes a planar fabrication device for fabricating planar structures, the planar fabrication device comprising: A frame, wherein the frame is arranged in upper and lower layers, including a working platform arranged along the conveying direction; The upper layer of the frame includes an inner unwinding module and an outer unwinding module for unwinding, and at least one inner core unwinding module disposed between the inner and outer unwinding modules. The inner core unwinding module is used to unwind the die-cut paper. The inner unwinding module, the inner core unwinding module, and the outer unwinding module are arranged sequentially along the conveying direction and unwind in a step-by-step manner. The unwound paper is stacked sequentially from the inside to the outside and is conveyed in the conveying direction on the working platform. A first tension adjusting device is disposed between the inner unwinding module and the working platform, a second tension adjusting device is disposed between the inner core unwinding module and the working platform, and a third tension adjusting device is disposed between the outer unwinding module and the working platform. The first tension adjusting device, the second tension adjusting device, and the third tension adjusting device are respectively used to adjust the tension of the inner paper, the die-cut paper, and the outer paper. A stretching module located at the rear end of the second tension adjustment device is used to stretch the die-cut paper into the mesh-like three-dimensional structure, forming the pad and conveying it to the working platform. The tension of the second tension adjustment module clamping the die-cut paper at the front end of the stretching module is less than the minimum tension required for the die-cut paper to be stretched into the pad; the tension of the stretching module clamping the die-cut paper is greater than the minimum tension required for the die-cut paper to be stretched into the pad; the length of the die-cut paper unwound by the inner core unwinding module in one step time is less than the length of the pad fed by the rear end of the stretching module in one step time; the length of the pad fed by the rear end of the stretching module in one step time is equal to the lengths fed by the inner layer and the outer layer in one step time. Multiple first gluing modules are provided, which are mounted on the frame and face the work platform. The inner paper, the padding, and the outer paper each correspond to at least one first gluing module. The first gluing module is used to apply glue to the bonding position of each layer of paper, thereby connecting multiple layers of paper together. The gluing position includes gluing at intervals perpendicular to the conveying direction. A first pressing module is disposed at the rear end of the third tension adjustment module. The first pressing module is used to press the adhesive application position to form the planar structure. The first pressing module includes a plurality of transverse hot pressing units. The plurality of transverse hot pressing units are spaced apart on the working platform and are used to press the adhesive application position of the first adhesive application module.

2. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The manufacturing equipment includes: Two planar fabrication devices are arranged opposite each other. Planar structures fabricated by the two planar fabrication devices are stacked together along the conveying direction and conveyed synchronously. The manufacturing equipment also includes: The second adhesive application module is used to apply adhesive to any one of the planar structures, thereby bonding the planar structure to the other planar structure. The second pressing module is used to press the adhesive application positions of the two planar structures. The cutting module is used to cut the two planar structures together after pressing into multiple bag units.

3. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 2, characterized in that, The manufacturing equipment also includes: An adhesive-applying and folding module is used to apply adhesive to one side of the bag unit and fold and press it to form the bottom of the protective bag.

4. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The first tension adjustment device is the same as the third tension adjustment device, which includes a swing arm with one end positioned on the frame and rotating relative to the frame, a plurality of rotating rollers disposed on the swing arm, and a rotating rod positioned on the frame and capable of rotation. The unwound inner layer paper and the outer layer paper are respectively inserted between the plurality of rotating rods and the plurality of rotating rollers, thereby realizing adaptive tension adjustment.

5. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The second tension adjustment device adjusts the force of the die-cut paper unwound from the inner core layer so that the die-cut paper is in an unstretched state before passing through the stretching module; the second tension adjustment device includes a slide rail, a slider mounted on the slide rail, a connecting roller positioned on the slider and rotating thereon, and a servo motor that drives the slider to slide on the slide rail, through which the die-cut paper passes.

6. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The stretching module includes: A transition roller, which is located at the rear end of the second tension adjustment device, is used to receive unstretched die-cut paper; A differential roller is disposed between the transition roller and the working platform. The differential roller rotates at a higher speed than the transition roller, thereby stretching the die-cut paper passing through the transition roller into the mesh-like three-dimensional structure before entering the differential roller, thus forming the pad.

7. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, First adhesive application module include: A support positioned on the frame and reciprocating relative to the work platform along the conveying direction; Two horizontal nozzles and a vertical nozzle are mounted on the bracket, with the two horizontal nozzles located on both sides of the bracket. The horizontal nozzles are used to apply glue to the paper on the work platform in the vertical conveying direction, and the vertical nozzles apply glue to the center line of the paper conveying direction on the work platform. The first sizing module causes the paper to form an "H" shaped sizing trajectory, with the sizing trajectories of the inner layer, the inner core layer, and the outer layer overlapping.

8. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The first pressing module includes multiple horizontal hot pressing units and at least one vertical hot pressing unit; the multiple horizontal hot pressing units are spaced apart from each other. On the work platform, the interval between two adjacent horizontal hot pressing units is the same as the distance between two horizontal nozzles; the horizontal hot pressing unit is used to press the position of the horizontal nozzle for applying adhesive; the vertical hot pressing unit is used to press the centerline position of the vertical nozzle for applying adhesive.

9. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The cutting module includes a horizontal cutting blade and a vertical cutting blade. The horizontal cutting blade is used to cut at the glue application position in the vertical conveying direction; the vertical cutting blade is used to cut at the glue application position at the center line of the conveying direction.

10. The novel environmentally friendly paper protective bag manufacturing equipment as described in claim 1, characterized in that, The glue-applying and folding module includes a glue-applying unit and a folding and pressing unit. The glue-applying unit is used to apply glue to the bottom edge surface of the bag body unit located at the center line. The folding and pressing unit folds and presses the bottom edge coated by the glue-applying unit.

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