High-yield packaging carton production process

Through rigorous monitoring and inspection processes, including cardboard cutting, leveling, preheating, printing, sealing, trimming, and pattern inspection, the problem of low yield in traditional box-making processes has been solved, achieving high-yield cardboard box production.

CN121536034APending Publication Date: 2026-02-17HUIZHOU GUOPENG CULTURAL & CREATIVE CO LTD
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Patent Information

Application Number
CN202511758323.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-02-17

AI Technical Summary

Technical Problem

In traditional box-making processes, errors are unavoidable in paper box production, leading to a decrease in production yield and a failure to effectively detect and correct problems.

Method used

A rigorous monitoring and inspection process is adopted, including steps such as cardboard cutting, leveling, preheating, printing, sealing, trimming, pattern detection, and carton folding. The patterns are compared with high precision using an industrial camera to ensure that the similarity reaches more than 95% to be considered qualified.

Benefits of technology

This improved the yield rate of cardboard box production. Through rigorous monitoring and inspection processes, the accuracy and completeness of the cardboard box patterns and shapes were ensured, thereby enhancing product quality.

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Abstract

The invention relates to a high-yield packaging carton production process, which comprises the following steps: a carton plate leveling step: pressing and leveling a carton plate block; according to the step of paper plate block preheating, the flattened paper plate blocks are subjected to preheating treatment. According to the step of printing the paperboard block, patterns are printed on the surface layer of the preheated paperboard block. Through a cardboard block film sealing step, a protective film is attached to the cardboard block printed with the patterns so as to protect the patterns on the cardboard block. And through the step of cutting the cardboard blocks, the cardboard blocks subjected to film sealing treatment are cut to obtain the carton board capable of being folded into a carton. Whether the pattern on the paper box board is accurate and complete is detected through the paper box board detection step. And the detected paper box plate is folded to form the paper box through the paper box folding and forming step. Through a carton inspection step, whether the carton shape is deformed and whether the pattern on the carton is accurate and complete are inspected. The carton obtained through the high-yield packaging carton production process is high in yield.
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Description

Technical Field

[0001] This invention relates to the field of paper box manufacturing, and in particular to a high-yield packaging paper box production process. Background Technology

[0002] A cardboard box is a three-dimensional shape, composed of multiple facets that are moved, stacked, folded, and enclosed. In three-dimensional composition, facets divide space; cutting, rotating, and folding different facets creates different emotional expressions. The composition of a cardboard box's display surfaces requires attention to the connections between the display surface, sides, top, and bottom, as well as the placement of packaging information elements. Cardboard box packaging largely uses its exquisite design and decoration to promote and beautify products, enhancing their competitiveness. Because the shape and structural design of a cardboard box are often determined by the shape and characteristics of the packaged product, there are many styles and types, including rectangular, square, polygonal, irregularly shaped, and cylindrical boxes.

[0003] However, paper packaging products constitute the largest category of packaging industrial products. Cardboard boxes are the primary form of transport packaging, while paper cartons are widely used for sales packaging of various products such as food, pharmaceuticals, and electronics. Traditional box-making processes, such as the invention disclosed in application number CN201510952829.6 entitled "A Method for Manufacturing a Cardboard Box," inevitably introduce errors during the cardboard box manufacturing process and lack inspection, leading to a decrease in production yield. Summary of the Invention

[0004] Therefore, it is necessary to provide a high-yield packaging paper box production process to address the technical problems that inevitably arise during the traditional box-making process, and the lack of inspection of the cartons leads to a decrease in production yield.

[0005] A high-yield packaging paper box production process, the process comprising the following steps: Cardboard cutting steps: Cut the raw cardboard into pieces on a cutting machine to obtain the paperboard pieces needed to fold into paper boxes; Paperboard leveling steps: The paperboard is pressed and leveled on a leveling machine to ensure that the surface of the paperboard is flat. Paper board preheating steps: Preheat the flattened paper board; Paperboard printing steps: Printing is performed on the surface of the preheated paperboard. The paperboard sealing step involves attaching a protective film to the printed paperboard. Paperboard cutting steps: Cut the sealed paperboard into paperboards that can be folded into paper boxes; Cardboard board inspection steps: Check whether the pattern on the cardboard board is accurate and complete; Paper box folding and forming steps: Fold the inspected paperboard to form a paper box; Paper box inspection steps: Check whether the shape of the paper box is deformed, and check whether the pattern on the paper box is accurate and complete.

[0006] In one embodiment, the carton board inspection step involves inspecting whether the pattern on each part of the carton board is accurate and complete.

[0007] In one embodiment, an industrial camera is used to capture the pattern on each part of the cardboard board.

[0008] In one embodiment, the correct pattern on each part of the cardboard board is pre-stored in a database. The pattern on each part of the collected cardboard board is compared with the correct pattern in the database one by one. If the comparison results are all qualified, it means that the cardboard board has passed the inspection.

[0009] In one embodiment, the pattern on each part of the collected inspection cardboard is compared with the correct pattern in the database. If the similarity is greater than 95%, it is considered qualified; otherwise, it is considered unqualified.

[0010] In one embodiment, the paper box inspection step involves inspecting whether the patterns on each side of the paper box are accurate and complete.

[0011] In one embodiment, an industrial camera is used to capture patterns on each side of the cardboard box.

[0012] In one embodiment, the correct patterns on each side of the cardboard box are pre-stored in a database. The collected patterns on each side of the cardboard box are compared one by one with the correct patterns in the database. If the comparison results are all qualified, it indicates that the cardboard box is detected without error.

[0013] In one embodiment, the patterns on each side of the collected cardboard box are compared with the correct patterns in the database. If the similarity is greater than 95%, it is considered qualified; otherwise, it is considered unqualified.

[0014] In one embodiment, the protective film has anti-counterfeiting markings. In another embodiment, the protective film is a PET film during the protective film application step.

[0015] The above-mentioned high-yield packaging cardboard box production process is concise, sophisticated, and easy to control, with each step requiring meticulous attention. The process includes: Cardboard cutting: cutting the raw cardboard into pieces to obtain the paperboard sheets needed to fold into boxes; Cardboard flattening: flattening the paperboard sheets by pressing and pressing; Cardboard preheating: preheating the flattened paperboard sheets; Cardboard printing: printing patterns onto the surface of the preheated paperboard sheets; Cardboard sealing: applying a protective film to the printed paperboard sheets to protect the patterns; Cardboard cutting: cutting the sealed paperboard sheets to obtain cardboard box sheets that can be folded into boxes; Cardboard inspection: checking the accuracy and completeness of the patterns on the cardboard box sheets; Cardboard box folding and forming: folding the inspected cardboard box sheets into boxes; Cardboard box inspection: checking for shape deformation and the accuracy and completeness of the patterns on the boxes. The aforementioned high-yield packaging box production process involves strict monitoring and inspection of the box-making process, resulting in a high yield rate of cardboard boxes. Attached Figure Description

[0016] Figure 1 This is a flowchart illustrating a high-yield packaging box production process in one embodiment. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. To make the above-mentioned objectives, features, and advantages of this invention more apparent and understandable, the specific embodiments of this invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the invention. However, the invention can be implemented in many ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below. In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They 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 the invention.

[0018] 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this invention, unless otherwise explicitly 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 or an electrical 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Please see Figure 1 This invention provides a high-yield packaging paper box production process, the process comprising the following steps: Step 101: Cardboard Cutting Step: Cut the raw cardboard into pieces on a cutting machine to obtain the paperboard pieces needed to fold into paper boxes.

[0023] Among them, the raw material cardboard is the raw material for producing paper boxes, and it can be cut into multiple paper boards that need to be folded into paper boxes.

[0024] Specifically, the raw cardboard is cut into pieces on a cutting machine to obtain the paperboard sheets needed to fold into cardboard boxes. Further, the stacked raw cardboard is batch-cut into pieces on a cutting machine to obtain the paperboard sheets needed to fold into cardboard boxes.

[0025] Step 102: Paperboard leveling step: The paperboard is pressed and leveled on the leveling equipment to ensure that the surface of the paperboard is flat.

[0026] Among them, paperboard is the material required to fold into paper boxes.

[0027] Specifically, the cut paper boards are pressed and leveled on a leveling machine to ensure that the surface of the paper boards is flat, so as to facilitate subsequent printing.

[0028] Step 103: Paperboard Preheating Step: Preheat the flattened paperboard.

[0029] In this embodiment, the flattened paper board is preheated in a hot air blower. The preheating temperature is 30 to 35 degrees Celsius, and the preheating time is 5 to 10 minutes. Preheating allows the paper board to better bond with the ink, increasing the stability of printing quality.

[0030] Step 104: Paperboard Printing Step: Print the surface of the preheated paperboard.

[0031] Specifically, a printing press is used to print patterns onto the surface of the preheated paperboard.

[0032] Step 105: Paperboard sealing step, attaching a protective film to the printed paperboard.

[0033] The protective film is a PE film, which is inexpensive and has excellent anti-oxidation properties and chemical stability.

[0034] Specifically, a protective film is affixed to a printed paper block to protect the pattern and improve its antioxidant properties. In this embodiment, the protective film has anti-counterfeiting markings.

[0035] Step 106: Paperboard cutting step: Cut the sealed paperboard into paperboards that can be folded into paper boxes.

[0036] Specifically, a cutting machine cuts the laminated paperboard into cardboard boxes that can be folded into paper boxes. The cardboard boxes obtained after cutting can then be folded to form paper boxes.

[0037] Step 107: Cardboard board inspection steps: Check whether the pattern on the cardboard board is accurate and complete.

[0038] Specifically, in this embodiment, the accuracy and completeness of the pattern on each part of the cardboard board are checked.

[0039] Furthermore, an industrial camera is used to capture the pattern on each part of the cardboard board. The correct pattern on each part of the cardboard board is pre-stored in a database. The captured pattern on each part of the cardboard board is compared with the correct pattern in the database one by one. If the comparison results are all qualified, the cardboard board inspection is considered passed. The pattern on each part of the captured inspection cardboard board is compared with the correct pattern in the database. If the similarity is greater than 95%, it is considered qualified; otherwise, it is considered unqualified.

[0040] Step 108: Folding and forming the cardboard box: Fold the inspected cardboard board to form a cardboard box.

[0041] Specifically, folding equipment is used to fold the inspected cardboard boards into cardboard boxes.

[0042] Step 109: Paper box inspection steps: Check whether the shape of the paper box is deformed, and check whether the pattern on the paper box is accurate and complete.

[0043] Specifically, in this embodiment, the accuracy and completeness of the patterns on each side of the cardboard box are checked. Specifically, an industrial camera is used to capture the patterns on each side of the cardboard box. The correct patterns on each side of the cardboard box are pre-stored in a database. The captured patterns on each side of the cardboard box are compared one by one with the correct patterns in the database. If the comparison results are all qualified, it indicates that the cardboard box inspection is error-free. Further, the captured patterns on each side of the cardboard box are compared with the correct patterns in the database. If the similarity is greater than 95%, it is considered qualified; otherwise, it is judged as unqualified.

[0044] The above-mentioned high-yield packaging cardboard box production process is concise, sophisticated, and easy to control, with each step requiring meticulous attention. The process includes: Cardboard cutting: cutting the raw cardboard into pieces to obtain the paperboard sheets needed to fold into boxes; Cardboard flattening: flattening the paperboard sheets by pressing and pressing; Cardboard preheating: preheating the flattened paperboard sheets; Cardboard printing: printing patterns onto the surface of the preheated paperboard sheets; Cardboard sealing: applying a protective film to the printed paperboard sheets to protect the patterns; Cardboard cutting: cutting the sealed paperboard sheets to obtain cardboard box sheets that can be folded into boxes; Cardboard inspection: checking the accuracy and completeness of the patterns on the cardboard box sheets; Cardboard box folding and forming: folding the inspected cardboard box sheets into boxes; Cardboard box inspection: checking for shape deformation and the accuracy and completeness of the patterns on the boxes. The aforementioned high-yield packaging box production process involves strict monitoring and inspection of the box-making process, resulting in a high yield rate of cardboard boxes.

[0045] To protect the integrity of the pattern at the folded area of ​​the formed cardboard box, a flexible primer is first applied to the preheated area of ​​the cardboard box to be folded during the printing process. The flexible primer comprises the following components in parts by weight: 10 to 20 parts dipropylene glycol diacrylate, 12 to 18 parts trimethylolpropane formal acrylate, 14 to 26 parts trimethylolcyclohexyl acrylate, 20 to 40 parts polyurethane resin, 15 to 25 parts isooctyl p-dimethylaminobenzoate, and 14 to 26 parts p-hydroxyanisole, with the balance being water. The flexible primer composed of these components possesses excellent bending resistance and flexibility, effectively protecting the area of ​​the cardboard box to be folded.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A high yield carton production process, characterized by, The process comprises the following steps: Paperboard cutting step: cutting the raw paperboard on a cutting machine to obtain paperboard pieces needed for folding into cartons; Paperboard piece flattening step: flattening the paperboard pieces on a flattening device to ensure the surface of the paperboard pieces is flat; Paperboard piece preheating step: preheating the flattened paperboard pieces; Paperboard piece printing step: printing the surface layer of the preheated paperboard pieces; Paperboard piece film sealing step: attaching a protective film on the paperboard pieces printed with patterns; Paperboard piece cutting step: cutting the paperboard pieces sealed with the film to obtain carton boards that can be folded into cartons; Carton board inspection step: inspecting whether the patterns on the carton boards are accurate and complete; Carton folding step: folding the inspected carton boards into cartons; Carton inspection step: inspecting whether the shape of the cartons is deformed and whether the patterns on the cartons are accurate and complete.

2. The process according to claim 1, characterized in that, In the carton board inspection step, whether the patterns on each part of the carton board are accurate and complete is inspected.

3. The process of claim 2, wherein, An industrial camera is used to collect the patterns on each part of the carton board.

4. The process of claim 3, wherein, The correct patterns on each part of the carton board are pre-stored in a database, and the collected patterns on each part of the carton board are compared with the correct patterns in the database one by one. If the comparison results are all qualified, it means that the carton board passes the inspection.

5. The process of claim 4, wherein, The collected patterns on each part of the inspected carton board are compared with the correct patterns in the database. If the similarity of the comparison is greater than 95%, it is qualified, otherwise it is judged as unqualified.

6. The process of claim 1, wherein, In the carton inspection step, whether the patterns on each face of the carton are accurate and complete is inspected.

7. The process of claim 6, wherein, An industrial camera is used to collect the patterns on each face of the carton.

8. The process of claim 7, wherein, The correct patterns on each face of the carton are pre-stored in a database, and the collected patterns on each face of the carton are compared with the correct patterns in the database one by one. If the comparison results are all qualified, it means that the carton is detected without error.

9. The process of claim 8, wherein, The collected patterns on each face of the carton are compared with the correct patterns in the database. If the similarity of the comparison is greater than 95%, it is qualified, otherwise it is judged as unqualified.

10. The process of claim 1, wherein, The protective film has an anti-counterfeiting mark.

Citation Information

Patent Citations

  • A method of making a carton

    CN105563888B