Leveling mechanism before folding of carton box

By designing a leveling mechanism that combines an air pump and a curved nozzle with components such as a turbine and pulleys, the problem of wrinkles and tears caused by the cardboard boxes tilting during transport was solved, thus achieving stable transport of the cardboard boxes.

CN224490271UActive Publication Date: 2026-07-14HUAXIN FOSHAN COLOR PRINTING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAXIN FOSHAN COLOR PRINTING
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing leveling mechanisms cannot effectively prevent the problem of cardboard boxes wrinkling or tearing due to creases during transportation.

Method used

A leveling mechanism including an air pump, connecting pipe and curved air nozzle was designed. It uses airflow to press down the warped part of the carton. With the help of an auxiliary leveling mechanism, it uses components such as turbines, pulleys and helical gears to stably transport the carton and prevent the edges of the carton from warping.

Benefits of technology

It effectively prevents cardboard boxes from warping during transport, avoiding wrinkles and tears, and improving the stability and quality of cardboard box transport.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224490271U_ABST
    Figure CN224490271U_ABST
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Abstract

This utility model discloses a leveling mechanism for paper boxes before folding, including a frame. A conveying assembly is fixedly connected to the top of the frame. A flattening assembly is provided on the right side of the top of the conveying assembly. An L-shaped plate is fixedly connected to the front of the frame. An air pump is fixedly connected to the right side of the top of the L-shaped plate. The output end of the air pump is connected to a connecting pipe. The side of the connecting pipe away from the air pump extends to the top of the conveying assembly. A curved air nozzle is connected to the bottom of the connecting pipe. The curved air nozzle is used in conjunction with the conveying assembly. An auxiliary flattening mechanism is provided on the surface of the connecting pipe. The auxiliary flattening mechanism includes a turbine movably connected to the surface of the connecting pipe. A pulley is fixedly connected to the surface of the turbine. This leveling mechanism for paper boxes before folding uses a curved air nozzle to press down on the paper box, effectively preventing wrinkles or even tears in the paper box.
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Description

Technical Field

[0001] This utility model relates to the field of paper box processing technology, specifically to a leveling mechanism for paper boxes before folding. Background Technology

[0002] Paper boxes are widely used packaging containers, typically made of cardboard, paper, or other paper materials. They come in various shapes, sizes, and uses, and are essential tools for protecting, storing, transporting, and selling goods. The design and manufacturing process of paper boxes can be very flexible. Folding paper boxes are usually made by folding a single sheet of cardboard without the need for glue or nails. They are commonly used to package small items such as candy, medicine, and cosmetics. Folding paper boxes are simple in design and easy to recycle and reuse. The main function of a leveling mechanism is to flatten uneven cardboard through a series of mechanical operations to achieve the required flatness.

[0003] Before folding, the cardboard box needs to be conveyed by a conveyor. During the conveying process, the cardboard box will lift up due to the creases at both ends. If the cardboard box continues to be fed, it will collide with the top pressure plate, and wrinkles or even tears will appear after the paper continues to be fed.

[0004] Therefore, the leveling mechanism needs to be redesigned to effectively prevent the cardboard box from wrinkling or even tearing. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a leveling mechanism for paper boxes before folding, which has the advantage of pressing down the tilted paper box with air pressure. This solves the problem that during the conveying process, the paper box will tilt due to creases at both ends. If the tilted paper box continues to be fed, it will collide with the top pressure plate, and wrinkles or even tears will appear after the paper continues to be fed.

[0006] A paper box folding and leveling mechanism according to a first aspect of the present invention includes a frame, a conveying assembly fixedly connected to the top of the frame, a flattening assembly disposed on the right side of the top of the conveying assembly, an L-shaped plate fixedly connected to the front of the frame, an air pump fixedly connected to the right side of the top of the L-shaped plate, a connecting pipe connected to the output end of the air pump, the connecting pipe extending to the top of the conveying assembly on the side away from the air pump, a bent air nozzle connected to the bottom of the connecting pipe, the bent air nozzle being used in conjunction with the conveying assembly, and an auxiliary flattening mechanism disposed on the surface of the connecting pipe.

[0007] A paper box leveling mechanism according to an embodiment of the present invention has at least the following beneficial effects: The leveling mechanism of the present invention, by setting up an air pump, connecting pipe, and curved air nozzle, uses the curved air nozzle to spray air to press down the paper box, preventing the paper box from tilting up and continuing to be conveyed by the conveyor. This prevents the tilted paper box from continuing to be fed with paper, which would cause it to collide with the top pressure plate, resulting in wrinkles or even tears. The present invention, through the setting of an auxiliary leveling mechanism, uses a rotating flexible plate to press down the tilted edge of the paper box, working together with the curved air nozzle to hold the tilted edge down, further preventing the paper box from tilting up during the paper feeding process of the conveyor assembly.

[0008] According to some embodiments of the present invention, the auxiliary flattening mechanism includes a turbine movably connected to the surface of the connecting pipe, a pulley 1 fixedly connected to the surface of the turbine, a connecting belt pulsatingly connected to the surface of the pulley 1, a rotating rod 1 movably connected to the left side of the top of the L-shaped plate via a bearing, a pulley 2 sleeved on the top of the surface of the rotating rod 1, and the side of the connecting belt away from the pulley 1 pulsatingly connected to the surface of the pulley 2.

[0009] According to some embodiments of the present invention, a helical gear is fixedly connected to the top of the rotating rod one, a rotating rod two is movably connected to the rear side of the top of the conveying assembly via a bearing, a helical gear two is fixedly connected to one side of the rotating rod two, the bottom of the helical gear two meshes with the helical gear one, a rotating wheel is sleeved on the surface of the rotating rod two, a flexible plate is fixedly connected to the surface of the rotating wheel, and the bottom of the flexible plate contacts the conveying assembly.

[0010] According to some embodiments of the present invention, a limiting block is rotatably positioned at the bottom of one surface of the rotating rod, and the back of the limiting block is fixedly connected to the L-shaped plate.

[0011] According to some embodiments of the present invention, the top and bottom of the limiting block are fixedly connected with triangular blocks, and the back of the triangular blocks are fixedly connected with an L-shaped plate.

[0012] According to some embodiments of the present invention, the surface of the connecting strip is provided with a limiting recess, and the back of the limiting recess is fixedly connected to the L-shaped plate.

[0013] According to some embodiments of the present invention, inclined plates are fixedly connected to both sides of the back of the L-shaped plate, and the top of the inclined plates is fixedly connected to the frame.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural diagram of the auxiliary flattening mechanism of this utility model;

[0018] Figure 3 This is a structural diagram of the turbine of this utility model;

[0019] Figure 4 This is a side view of the L-shaped plate and inclined plate of this utility model.

[0020] In the diagram: 100, frame; 200, conveying assembly; 300, flattening assembly; 400, L-shaped plate; 500, air pump; 600, connecting pipe; 700, bent air nozzle; 800, auxiliary flattening mechanism; 810, turbine; 811, pulley one; 812, connecting belt; 813, rotating rod one; 814, pulley two; 815, helical gear one; 816, rotating rod two; 817, helical gear two; 818, rotating wheel; 819, flexible plate; 900, limiting block; 1000, triangular block; 1100, limiting concave plate; 1200, inclined plate. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Reference Figures 1 to 4 A leveling mechanism for paper boxes before folding includes a frame 100. A conveying assembly 200 is fixedly connected to the top of the frame 100. The conveying assembly 200 consists of a frame, a conveyor belt, rollers, and a drive device. A flattening assembly 300 is provided on the right side of the top of the conveying assembly 200. An L-shaped plate 400 is fixedly connected to the front of the frame 100. An air pump 500 is fixedly connected to the right side of the top of the L-shaped plate 400. The output end of the air pump 500 is connected to a connecting pipe 600. The side of the connecting pipe 600 away from the air pump 500 extends to the top of the conveying assembly 200. A bent air nozzle 700 is connected to the bottom of the connecting pipe 600. The bent air nozzle 700 is used in conjunction with the conveying assembly 200. An auxiliary flattening mechanism 800 is provided on the surface of the connecting pipe 600.

[0026] Reference Figure 2 The auxiliary flattening mechanism 800 includes a turbine 810 movably connected to the surface of the connecting pipe 600. The turbine 810 is rotatably connected to the connecting pipe 600, and the rotatable connection is sealed with a sealing ring. The turbine 810 consists of a sleeve, a central shaft, and a fan blade. One end of the fan blade is fixedly connected to the inner wall of the sleeve. The central shaft is located at the center inside the sleeve, and the other end of the fan blade is fixedly connected to the central shaft. A pulley 811 is fixedly connected to the surface of the turbine 810. A connecting belt 812 is drivenly connected to the surface of the pulley 811. A rotating rod 813 is movably connected to the top left side of the L-shaped plate 400 via a bearing. A pulley 814 is sleeved on the top of the surface of the rotating rod 813. The side of the connecting belt 812 away from the pulley 811 is drivenly connected to the surface of the pulley 814.

[0027] In some embodiments, the auxiliary flattening mechanism 800, together with the curved air nozzle 700, can press down the warped edges of the carton, thereby increasing the quality of the carton conveying.

[0028] Reference Figure 2 A helical gear 815 is fixedly connected to the top of the rotating rod 813. A rotating rod 816 is movably connected to the rear side of the top of the conveying assembly 200 via a bearing. A helical gear 817 is fixedly connected to the front of the rotating rod 816. The bottom of the helical gear 817 meshes with the helical gear 815. A rotating wheel 818 is sleeved on the surface of the rotating rod 816. A flexible plate 819 is fixedly connected to the surface of the rotating wheel 818. The bottom of the flexible plate 819 contacts the conveying assembly 200.

[0029] In some embodiments, the arrangement of helical gear 815, rotating rod 816, helical gear 817, rotating wheel 818 and flexible plate 819 enables the rotating rod 813 to rotate more stably, while ensuring the conveying of the paper box.

[0030] Reference Figure 2 The bottom of the rotating rod 813 surface has a limiting block 900 that rotates, and the back of the limiting block 900 is fixedly connected to the L-shaped plate 400.

[0031] In some embodiments, the setting of the limiting block 900 enables the rotating rod 813 to rotate more stably, preventing the rotating rod 813 from tilting.

[0032] Reference Figure 2 Triangular blocks 1000 are fixedly connected to the top and bottom of the limiting block 900, and the back of the triangular block 1000 is fixedly connected to the L-shaped plate 400.

[0033] In some embodiments, the triangular block 1000 enables the limiting block 900 to be more securely connected to the L-shaped plate 400, preventing separation between the two.

[0034] Reference Figure 1 The surface of the connecting strip 812 is provided with a limiting recess 1100, and the back of the limiting recess 1100 is fixedly connected to the L-shaped plate 400.

[0035] In some embodiments, the limiting recess 1100 enables the connecting belt 812 to move more stably, thereby increasing the operational stability of the connecting belt 812.

[0036] Reference Figure 4 Both sides of the back of the L-shaped plate 400 are fixedly connected to inclined plates 1200, and the top of the inclined plates 1200 is fixedly connected to the frame 100.

[0037] In some embodiments, the inclined plate 1200 enables the L-shaped plate 400 to be more securely connected to the frame 100, increasing the tightness between the two.

[0038] The working principle and usage process of this utility model are as follows: First, the user places the cardboard box at the feed inlet of the conveying assembly 200, then starts the air pump 500. The air pressure inside the air pump 500 blows towards the turbine 810, causing the turbine 810 to rotate. The turbine 810 drives the pulley 1 811 to rotate, and the pulley 1 811 drives the pulley 2 814 to rotate via the connecting belt 812. The pulley 2 814 drives the rotating rod 1 813 to rotate, and the rotating rod 1 813 drives the helical gear 1 815 to rotate. The helical gear 1 815 drives the helical gear... The rotation of gear 817 drives the rotation of rod 816, which in turn drives the rotation of wheel 818. Wheel 818 then drives flexible plate 819 to rotate, causing the flexible plate 819 to flatten the raised part of the cardboard box before folding. Then, air from pump 500 is delivered through connecting pipe 600 and blown again through curved nozzle 700 onto the raised part of the cardboard box before folding. The flattening component 300 then flattens the box again, achieving the effect of pressing the raised cardboard box down with air pressure.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A leveling mechanism for paper boxes before folding, characterized in that, The device includes a frame (100), a conveying assembly (200) fixedly connected to the top of the frame (100), a flattening assembly (300) provided on the right side of the top of the conveying assembly (200), an L-shaped plate (400) fixedly connected to the front of the frame (100), an air pump (500) fixedly connected to the right side of the top of the L-shaped plate (400), a connecting pipe (600) connected to the output end of the air pump (500), the connecting pipe (600) extending to the top of the conveying assembly (200) on the side away from the air pump (500), a bent air nozzle (700) connected to the bottom of the connecting pipe (600), the bent air nozzle (700) used in conjunction with the conveying assembly (200), and an auxiliary flattening mechanism (800) provided on the surface of the connecting pipe (600).

2. The leveling mechanism before folding a paper box according to claim 1, characterized in that: The auxiliary flattening mechanism (800) includes a turbine (810) movably connected to the surface of the connecting pipe (600). A pulley (811) is fixedly connected to the surface of the turbine (810). A connecting belt (812) is drivenly connected to the surface of the pulley (811). A rotating rod (813) is movably connected to the left side of the top of the L-shaped plate (400) via a bearing. A pulley (814) is sleeved on the top of the surface of the rotating rod (813). The side of the connecting belt (812) away from the pulley (811) is drivenly connected to the surface of the pulley (814).

3. The leveling mechanism before folding a paper box according to claim 2, characterized in that: The top of the rotating rod (813) is fixedly connected to a helical gear (815). The rear side of the top of the conveying assembly (200) is movably connected to a rotating rod (816) via a bearing. One side of the rotating rod (816) is fixedly connected to a helical gear (817). The bottom of the helical gear (817) meshes with the helical gear (815). A rotating wheel (818) is sleeved on the surface of the rotating rod (816). A flexible plate (819) is fixedly connected to the surface of the rotating wheel (818). The bottom of the flexible plate (819) is in contact with the conveying assembly (200).

4. The leveling mechanism before folding a paper box according to claim 2, characterized in that: The bottom of the surface of the rotating rod (813) is rotated by a limiting block (900), and the back of the limiting block (900) is fixedly connected to the L-shaped plate (400).

5. The leveling mechanism before folding a paper box according to claim 4, characterized in that: The top and bottom of the limiting block (900) are fixedly connected to a triangular block (1000), and the back of the triangular block (1000) is fixedly connected to the L-shaped plate (400).

6. The leveling mechanism before folding a paper box according to claim 2, characterized in that: The surface of the connecting strip (812) is provided with a limiting recess (1100), and the back of the limiting recess (1100) is fixedly connected to the L-shaped plate (400).

7. The leveling mechanism before folding a paper box according to claim 1, characterized in that: Both sides of the back of the L-shaped plate (400) are fixedly connected to inclined plates (1200), and the top of the inclined plates (1200) is fixedly connected to the frame (100).