Gluing process and device for paper mounting

Through the dot matrix glue point coating process and folding bonding technology, the problems of high glue cost and slow water immersion speed in the paper mounting process have been solved, and low-cost and efficient production of children's toys that meet safety standards has been achieved.

WO2025208684A1PCT designated stage Publication Date: 2025-10-09CHEN ZHIJIAN
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Patent Information

Application Number
PCT/CN2024/090725
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-04-01
Filing Date
2024-04-30
Publication Date
2025-10-09

AI Technical Summary

Technical Problem

In the existing paper mounting process, the glue coating cost is high and the water diffusion rate is slow, which makes it difficult to meet the safety testing requirements for children's toys.

Method used

A dot-matrix distributed glue point coating process is adopted, combined with fold line mounting and pressing to form a stacked paper material with folded and bonded glue points. A printing roller and transfer layer are used to form a glue point surface on the surface of the paper substrate, reducing the amount of glue used and increasing the water diffusion speed.

Benefits of technology

It significantly reduces production costs, improves production efficiency, meets the water immersion test requirements of children's toys, and ensures that the paper is not debonded or damaged within the specified time.

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Abstract

A gluing process and device for paper mounting. The process comprises the following steps: S1, obtaining a paper base material; S2, forming, on a surface of the paper base material, a glue dispensing surface composed of a plurality of glue dots which are distributed in an array of dots, so as to obtain a glue-dispensed paper; S3, forming folding lines on the surface of the glue-dispensed paper, and carrying out mounting and pressing along the folding lines, so as to obtain laminated paper that is folded and bonded by means of the glue dispensing surface. As a glue surface responsible for adhesion is configured to be composed of a plurality of glue dots, a whole-surface glue spreading process for paper in a conventional solution is eliminated, a large amount of raw material is saved on, the production cost is significantly reduced, and the diffusion speed of immersion water is increased, thereby further improving the production efficiency.
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Description

Gluing process and device for paper mounting Technical Field

[0001] The invention relates to the field of paper material processing, in particular to a gluing process and device for paper material mounting.

[0002] In the existing technology, paper packaging or toys are all made by combining multiple layers of sheet paper, which can ensure the strength and appearance of the finished product and further save costs. However, the requirements for children's toys are more stringent. The industry is concerned about the safety of children's use scenarios. Children's paper toys with a paper weight of more than 400 grams need to be subjected to a water immersion test. It can be understood that within the specified time, the children's paper toys need to meet the water immersion speed requirements, and need to show no degumming, no damage and be able to maintain integrity. In order to meet the test requirements, the existing technology uses screen printing to apply glue on one side of the paper, and then the paper is mounted and glued together. However, in actual use, the above method is found to have a high cost of raw materials for glue due to the need to completely apply glue on one side of the paper, and the diffusion rate of water in the immersion test is slow, which is not conducive to production. Therefore, a more reasonable gluing scheme is urgently needed to solve the above-mentioned shortcomings. Technical issues

[0003] The present invention provides a solution to the technical problem of high glue coating cost in the existing paper mounting process. Technical Solutions

[0004] The present invention provides a gluing process for paper mounting, comprising the following steps:

[0005] S1: obtaining a paper substrate;

[0006] S2: forming a glue-dotting surface composed of a plurality of glue points distributed in a dot matrix on the surface of the paper substrate to obtain a glue-dotting paper material;

[0007] S3: forming fold lines on the surface of the glue-dotted paper material, and performing mounting and pressing based on the fold lines to obtain a laminated paper material folded and bonded by the glue-dotted surface.

[0008] As an improvement to the present application, the shape of any of the glue points is circular.

[0009] As an improved solution of the present application, the diameter of the glue points is 2-4 mm, and the distance between any two glue points is 2-4 mm.

[0010] The present application also provides a gluing device for paper mounting, which is used to perform the above method, including: a machine platform, a rubber printing roller configured on the machine platform, the cylinder surface of the rubber printing roller is provided with a transfer layer with multiple convex points and the convex points are arranged in a matrix; the rubber printing roller is used to form the glue dot surface on the surface of the paper substrate.

[0011] As an improved solution of the present application, the transfer layer is attached to the cylinder surface of the rubber printing roller.

[0012] As an improved solution of the present application, the machine is further provided with a feeding trough for supplying glue to the rubber printing roller.

[0013] As an improved solution of the present application, the two ends of the machine form a feed end and a discharge end, and are equipped with a conveying module; the conveying module transports the paper profile from the feed end to the rubber printing roller for processing, and after the processing is completed, the stacked paper material is output from the discharge end.

[0014] As an improved solution of the present application, the feed end further includes a lifting plate and a feeder structure for transporting the paper substrate.

[0015] As an improved solution of the present application, the feeding module includes a chain pushing claw unit and a suction belt unit, and the chain pushing claw unit and the suction belt unit are relatively placed with the printing rubber roller as the center.

[0016] As an improvement to the present application, the machine is further provided with a folding knife located in the area of ​​the suction belt unit, and the folding knife structure folds the glue-dotted paper. Beneficial effects

[0017] Compared with the prior art, the present invention provides a gluing process and device for paper mounting, which includes the following steps: S1: obtaining a paper substrate; S2: forming a gluing surface composed of multiple glue points distributed in a dot matrix on the surface of the paper substrate to obtain a glued paper; S3: forming a fold line on the surface of the glued paper, and mounting and pressing based on the fold line to obtain a stacked paper folded and bonded by the gluing surface; by setting the glue surface responsible for bonding to be composed of multiple glue points, the traditional method of gluing the entire surface of the paper is avoided, a large amount of raw materials is saved, the production cost is greatly reduced, and the diffusion rate of water immersion is increased, thereby further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a flow chart of this application;

[0019] Figure 2 is a dispensing surface diagram of the present application;

[0020] Figure 3 is one of the comparative data report figures of this application;

[0021] FIG4 is the second comparative data report diagram of this application;

[0022] FIG5 is a top view of the device of the present application;

[0023] FIG6 is a perspective view of the device of the present application;

[0024] FIG. 7 is a three-dimensional view of the device of the present application from another angle.

[0025] The main component symbols are described as follows:

[0026] 1. Machine platform; 11. Feed end; 12. Discharge end; 2. Rubber printing roller; 21. Transfer layer; 3. Feed trough;

[0027] 4. Conveyor module; 41. Chain push claw unit; 42. Suction belt unit. Best Mode for Carrying Out the Invention

[0028] In the existing technology, paper packaging or toys are all made by combining multiple layers of sheet paper, which can ensure the strength and appearance of the finished product and further save costs. However, the requirements for children's toys are more stringent. The industry is concerned about the safety of children's use scenarios. Children's paper toys with a paper weight of more than 400 grams need to be subjected to a water immersion test. It can be understood that within the specified time, the children's paper toys need to meet the water immersion speed requirements, and need to show no degumming, no damage and be able to maintain integrity. In order to meet the test requirements, the existing technology uses screen printing to apply glue on one side of the paper, and then the paper is mounted and glued together. However, in actual use, the above method is found to have a high cost of raw materials for glue due to the need to completely apply glue on one side of the paper, and the diffusion rate of water in the immersion test is slow, which is not conducive to production. Therefore, a more reasonable gluing scheme is urgently needed to solve the above-mentioned shortcomings.

[0029] In order to solve the above-mentioned technical problems, the present application provides a gluing process for paper lamination. Please refer to Figures 1 and 2, the following steps: S1: obtaining a paper substrate; S2: forming a glue-dotting surface composed of a plurality of glue points distributed in a dot matrix on the surface of the paper substrate to obtain glue-dotting paper; S3: forming fold lines on the surface of the glue-dotting paper, and laminating and pressing based on the fold lines to obtain a stack of paper materials folded and bonded by the glue-dotting surface;

[0030] By setting the glue surface responsible for bonding to be composed of multiple glue points, and arranging the multiple glue points in a point vibration manner, and forming interconnected water diffusion channels between the multiple glue points, a fast wetting effect can be achieved in the immersion test; this solution avoids the traditional solution of gluing the entire surface of the paper, saving a lot of raw materials, greatly reducing production costs, and increasing the diffusion speed of immersion, further improving production efficiency. Modes for Carrying Out the Invention

[0031] In a more optimal solution, the shape of any glue point is circular. By designing the glue points to be circular, it is easy to process and form, thereby reducing the difficulty of the process; the diameter of the glue point is 2-4mm, and the spacing between any two glues is 2-4mm. The preferred solution is that the diameter of the glue point is 4mm, and the spacing between any two glues is 2mm; in the above spacing setting, the strength of the stacked paper sheets under horizontal and vertical tension can be guaranteed. It is worth noting that the diameter of the glue points in this application is the diameter of the dots in Figure 2; in order to further illustrate the effect of this solution, an experimental comparison is made between the traditional process of spreading glue and the process of this application. The specific comparison data are shown in Figures 2-3. It is not difficult to know from the content of the figures that the water absorption rate of the stacked paper products in this solution is 131-134% (119-121% in the traditional technology), and the average glue consumption of the stacked paper products is 23g / m² (45g / in the traditional technology). m²), the horizontal tensile force of stacked paper products is 2.0-2.4Lbs (2.2-2.6Lbs in traditional technology), and the vertical tensile force of stacked paper products is 2.4-2.8Lbs (2.6-3.2Lbs in traditional technology). Although the tensile effect in the tensile test is not as good as the solution of full glue in traditional technology, it can still reach a qualified level. At the same time, the use of glue raw materials is greatly saved. The saving method includes: machine 1, and a printing roller 2 configured on the machine 1. The cylinder surface of the printing roller 2 is provided with multiple convex points and a large amount of cost is saved. At the same time, the stacked paper can also pass the water immersion test better and faster, increasing product preparation efficiency.

[0032] The present application also provides a gluing device for paper mounting, please refer to Figures 5-7, which is used to execute the transfer layer 21 with the above-mentioned square convex dots arranged in a matrix; the printing glue roller 2 is used to form a gluing surface on the surface of the paper substrate; this solution forms a gluing surface on the paper substrate by the printing glue roller, thereby achieving the effect described in the above process; in a specific solution, the transfer layer is attached to the cylinder surface of the printing glue roller, and the transfer layer is assembled in a pasting manner, which can facilitate technicians to assemble transfer layers arranged in arrays of different specifications; and the shape of the convex dots matches the pattern on the gluing surface, for example, the cross-sectional shape of any convex dot is circular, and the diameter of the circle formed by the convex dot is 2-4 mm, and the distance between any two convex dots is 2-4 mm

[0033] In this embodiment, the machine 1 is further provided with a feeding trough 3 for supplying glue to the printing rubber roller. It is not difficult to understand that, during operation, the feeding trough contains glue, and the feeding trough 3 transports the glue to the printing rubber roller 2, and then, during the rolling process, a glue point surface can be formed on the paper substrate through the transfer layer 21. The feeding trough can ensure the supply of glue, and then ensure the stable operation of the glue point surface, and there will be no situation where a certain glue point fails to reach the expected amount of glue, thereby affecting the bonding performance.

[0034] In this embodiment, the two ends of the machine 1 form a feed end 11 and a discharge end 12, and are equipped with a conveying module 4; the conveying module 4 transports the paper profile from the feed end 11 to the printing roller 2 for processing to achieve the aforementioned S2 step, and after completion, it is further transported to the folding area, and after completion of folding and bonding, the stacked paper material is output from the discharge end; a pressing roller and a discharge table can also be added to the discharge end, and the pressing roller will further compact the stacked paper material after folding, further increase the bonding ability of the glue, and the stacked paper material can be stored through the discharge table to facilitate fixed-point transportation by technicians.

[0035] In this embodiment, the feed end 11 also includes a lifting plate (not shown) and a feeder structure (not shown) for transporting the paper substrate. Since the lifting plate and the feeder structure belong to the existing technology, their structure and specific principles are not described in detail. Preferably, the conveying module 4 includes a chain push claw unit 41 and a suction belt unit 42, and the chain push claw unit 41 and the suction belt unit 42 are relatively placed with the printing rubber roller 2 as the center. In actual production, the paper substrate is transported to the feeder mechanism via the lifting plate, and the cooperation of the feeder structure The chain push claw unit clamps the edge of the paper substrate, and the chain push claw unit transports the paper substrate according to the preset interval distance, thereby ensuring that the glue-inducing layer can process the surface of each paper substrate to form a glue-dot surface to form a glue-dot paper material. Subsequently, the glue-dot paper material is adsorbed by the suction belt unit, thereby facilitating subsequent folding to achieve mounting and bonding; naturally, a cutting roller can also be set adjacent to the printing roller, and the cutting roller cuts the fold line pre-made on the paper substrate, thereby forming a semi-threading line, which is convenient for subsequent folding according to mounting.

[0036] In a more optimal solution, the machine 1 is further provided with a folding knife (not shown) in the area of ​​the suction belt unit. The folding knife structure folds the glue-dot paper material. After at least one folding, the laminated paper material of the present application can be obtained. The folding knife belongs to the existing technology, so its structure and specific principles are not described in detail. Industrial Applicability

[0037] 1) By configuring the glue surface responsible for gluing to consist of multiple glue points, which are arranged in a point-vibration pattern and interconnected water diffusion channels are formed between the multiple glue points, a rapid wetting effect can be achieved in the water immersion test. This solution avoids the traditional process of applying glue to the entire surface of the paper, saving a large amount of raw materials, greatly reducing production costs, and increasing the diffusion rate of immersion, further improving production efficiency.

[0038] 2) The transfer layer is attached to the surface of the rubber roller. The transfer layer is assembled in an attached manner, which makes it easy for technicians to assemble transfer layers arranged in arrays of different specifications;

[0039] 3) The glued paper is adsorbed by the suction belt unit, which facilitates the subsequent partial folding of the paper substrate to achieve mounting and bonding.

Claims

1. A gluing process for paper mounting, characterized in that: The following steps are involved: S1: obtaining a paper substrate; S2: forming a glue-dotting surface composed of a plurality of glue points distributed in a dot matrix on the surface of the paper substrate to obtain a glue-dotting paper material; S3: forming fold lines on the surface of the glue-dotted paper material, and performing mounting and pressing based on the fold lines to obtain a laminated paper material folded and bonded by the glue-dotted surface.

2. The gluing process for paper mounting according to claim 1, characterized in that: The shape of any of the glue spots is circular.

3. The gluing process for paper mounting according to claim 2, characterized in that: The diameter of the glue points is 2-4 mm, and the distance between any two glue points is 2-4 mm.

4. A gluing device for paper mounting, characterized in that: Used to perform any of the methods described in claims 1-3, comprising: a machine, a rubber printing roller arranged on the machine, a transfer layer having a plurality of convex points on the cylinder surface of the rubber printing roller and the convex points arranged in a matrix; the rubber printing roller is used to form the glue dot surface on the surface of the paper substrate.

5. The gluing device for paper mounting according to claim 4, characterized in that: The transfer layer is attached to the cylinder surface of the rubber printing roller.

6. The gluing device for paper mounting according to claim 4, characterized in that: The machine is also provided with a feeding trough for supplying glue to the rubber printing roller.

7. The gluing device for paper mounting according to claim 4, characterized in that: The two ends of the machine form a feed end and a discharge end, and are equipped with a conveying module; the conveying module transports the paper profile from the feed end to the rubber roller for processing, and after the processing is completed, the stacked paper material is output from the discharge end.

8. The gluing device for paper mounting according to claim 7, characterized in that: The feeding end further includes a lifting plate and a feeder structure for transporting the paper substrate.

9. The gluing device for paper mounting according to claim 7, characterized in that: The feeding module comprises a chain pushing claw unit and a suction belt unit, and the chain pushing claw unit and the suction belt unit are relatively placed with the printing rubber roller as the center.

10. The gluing device for paper mounting according to claim 4, characterized in that: The machine is further provided with a folding knife located in the area of ​​the suction belt unit, and the folding knife structure folds the glue-dot paper.

Citation Information

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