Coloring equipment for corrugated paper processing

By combining the guide frame and the swivel frame, along with the anti-slip design of the feeding belt, the problem of wrinkling during the coloring process of corrugated cardboard is solved, achieving uniform coloring of the gap area on the surface of a single-layer cardboard and improving the coloring effect.

CN223867038UActive Publication Date: 2026-02-03CHONGQING LIYONG PAPER PACKAGING CO LTD
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Patent Information

Application Number
CN202520547211.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-03
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

When coloring existing corrugated paper processing equipment, single-layer cardboard is prone to wrinkling, making it difficult for the coloring brush to effectively coat the wrinkles and gaps, thus affecting the coloring effect.

Method used

The paperboard is processed into a coloring surface unfolding guide unit, which includes a guide frame, a rotating frame, and a coloring nozzle. Through the guide structure composed of an inclined upper guide surface, an arc guide surface, and a coloring plane, combined with the anti-slip convex pieces and anti-slip adhesive dots of the feeding belt, the paperboard is ensured to remain stably unfolded during the coloring process, achieving uniform spraying.

Benefits of technology

It effectively prevents cardboard from wrinkling, ensures good coloring in the gaps on the surface of single-layer cardboard, and improves coloring uniformity and effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coloring device for corrugated paper processing, which comprises a feeding frame, a feeding roller, a feeding belt and a U-shaped frame, in the using process, in the conveying and surface coloring process, anti-skid lugs and anti-skid glue points on the surface of the feeding belt can limit the movement of a single-layer corrugated board, so that the single-layer corrugated board is not prone to falling off in the coloring and conveying process, and the single-layer corrugated board is not prone to falling off. When the paperboard is conveyed by the feeding belt to move to the area of the guide frame, due to the fact that the surface of the guide frame is composed of the inclined upper guide face, the arc-shaped guide face and the coloring plane, when the single-layer paperboard passes through the inclined upper guide face, the arc-shaped guide face and the coloring plane, the single-layer paperboard can be stretched and unfolded, and the single-layer paperboard can be effectively colored. In this way, coloring material liquid sprayed out of the independent spraying bins can be fully sprayed and colored on the surface of the single-layer corrugated board through the coloring sprayers installed in the independent spraying frame areas on the outer surface of the rotating frame, and the coloring effect of the gap areas on the surface of the single-layer corrugated board is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated paper processing and coloring technology, specifically to a coloring device for corrugated paper processing. Background Technology

[0002] Corrugated paper is made from linerboard and corrugated rollers. It is generally divided into single-wall corrugated paperboard and double-wall corrugated paperboard. Corrugated paperboard can be processed into product packaging such as cartons. Merchants often print colors on the surface of the paperboard to distinguish the special functions of their products. The colored patterns can be used as product function promotion.

[0003] The base paper is usually made of kraft paper or recycled pulp. The corrugated core is formed into a corrugated structure by corrugating rollers. A high-temperature steam generator is used to soften the pulp, enhance its flexibility, and accelerate the curing of the glue, thereby improving the bonding efficiency. The base paper and the corrugated core are combined through processes such as gluing, bonding, and drying to form a multi-layer structure (such as three-layer or five-layer boards). Some companies use intelligent equipment to achieve fully automated production. For example, Dongfang Precision's intelligent corrugated paper packaging equipment can cover the entire processing chain.

[0004] Corrugated paper processing is a process in which base paper and corrugated core are bonded together using mechanical equipment to form a sheet-like material with a cushioning structure. Its core lies in using corrugated rollers to press the paper into a corrugated shape, which is then bonded to other layers of paper using gluing technology, ultimately producing corrugated cardboard or cartons.

[0005] In the prior art, publication number "CN220665812U" discloses a coloring device for corrugated paper processing. Addressing the problems of inconvenient adjustment and insufficient color uniformity in existing coloring devices, which significantly reduce the coloring effect, the following solution is proposed: It includes a base plate, with two supports symmetrically fixedly installed at the bottom of the base plate, and two fixed frames symmetrically fixedly installed at the top of the base plate. Rotating rods are rotatably installed on both fixed frames, and material rollers are fixedly installed on both rotating rods. An auxiliary plate is fixedly installed on the top of the base plate, and a mounting frame is fixedly installed on the top of the mounting frame. A top plate is slidably installed on the top plate, with two material boxes symmetrically slidably installed. Discharge pipes are fixedly installed at the bottom of both material boxes, and pumps are fixedly installed on both discharge pipes. Coloring brushes are fixedly installed at the bottom of both discharge pipes. This invention is convenient to adjust during use and provides uniform coloring, greatly improving the coloring effect.

[0006] However, existing technologies still have significant shortcomings, such as:

[0007] In the aforementioned device and the prior art, when applying color coating to the surface of cardboard, the single-layer cardboard is relatively soft and is prone to wrinkling during surface coating, making it difficult for the coloring brush to effectively coat the wrinkles and thus affecting the color coating effect of the single-layer cardboard. Utility Model Content

[0008] The purpose of this invention is to provide a coloring device for corrugated paper processing to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a coloring device for corrugated paper processing, comprising a feeding frame, feeding rollers, a feeding belt and a U-shaped frame, wherein the feeding rollers are configured in multiple groups, some of the feeding rollers are mounted on the surface of the feeding frame, and the feeding belt is sleeved on the surface of the multiple groups of feeding rollers;

[0010] A paper processing and coloring surface unfolding guide unit is disposed in the guide frame area and is used to stretch and unfold the corrugated paper during coloring to achieve uniform color spraying.

[0011] Preferably, the paper processing and coloring surface unfolding guide unit includes a guide part, the guide part includes a guide frame, the guide frame is disposed on the surface of the feeding frame, a portion of the feeding roller is installed inside the guide frame, the feeding belt is also sleeved on the surface of the portion of the feeding roller, an inclined upper guide surface is provided on one side of the guide frame, a coloring plane is provided on the top of the guide frame, and the inclined upper guide surface and the coloring plane are connected by an arc-shaped guide surface.

[0012] Preferably, the paper processing and coloring surface unfolding guide unit further includes a coloring part, the coloring part includes a rotating frame, the rotating frame is circular, and independent spray frames are arranged in a ring on the outer surface of the rotating frame. The surface of the independent spray frames is provided with through holes, and an independent spray chamber is embedded in the top of the independent spray frame. A coloring nozzle is connected to the bottom of the independent spray chamber, and the bottom spray hole area of ​​the coloring nozzle passes through the through hole.

[0013] Preferably, the top of the U-shaped frame is provided with a lifting part, the lifting part includes a hydraulic telescopic rod, the moving end of the hydraulic telescopic rod is equipped with a vertical guide rod, and the bottom of the vertical guide rod is fixed to the top of the swivel frame.

[0014] Preferably, an arc-shaped splash guard is installed on the inner side of the U-shaped frame near the area of ​​the guide frame, and the guide frame is installed on the surface of the arc-shaped splash guard.

[0015] Preferably, the inner side of the arc-shaped splash-proof shell is provided with a concave adsorption surface.

[0016] Preferably, the surface of the feeding belt is provided with anti-slip protrusions, the anti-slip protrusion array is configured in multiple groups, and anti-slip adhesive dots are installed on the surface of the anti-slip protrusions.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] As the cardboard moves to the guide frame area under the conveyor belt, the guide frame surface consists of three sections: an inclined upper guide surface, an arc guide surface, and a coloring plane. When the single-layer cardboard passes through the inclined upper guide surface, the arc guide surface, and the coloring plane, the single-layer cardboard will be stretched and unfolded. This allows the coloring nozzles in the independent spray frame area installed on the outer surface of the rotating frame to fully spray the coloring liquid sprayed from the independent spray chamber onto the surface of the single-layer corrugated cardboard, ensuring the coloring effect in the gap areas of the single-layer cardboard surface. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0020] Figure 2 This is a schematic diagram of the independent spray chamber in this utility model;

[0021] Figure 3 This is a schematic diagram of the swivel frame part in this utility model;

[0022] Figure 4 This is a schematic diagram of the anti-slip protrusions and anti-slip adhesive dots in this utility model.

[0023] In the diagram: 1. Feeding rack; 11. Feeding roller; 12. Feeding belt; 121. Inclined upper guide surface; 122. Arc-shaped guide surface; 123. Coloring plane; 13. Anti-slip convex piece; 131. Anti-slip adhesive dot;

[0024] 2. Support; 3. U-shaped frame;

[0025] 4. Hydraulic telescopic rod; 41. Vertical guide rod;

[0026] 5. Rotary spray frame; 51. Independent spray frame;

[0027] 6. Independent spray chamber; 61. Coloring spray head;

[0028] 7. Arc-shaped splash-proof shell; 71. Concave adsorption surface;

[0029] 8. Guide frame. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-4 This utility model provides a technical solution:

[0032] Example 1: A coloring device for corrugated paper processing: including a feeding frame 1, feeding rollers 11, feeding belts 12 and U-shaped frame 3, the feeding rollers 11 are configured in multiple groups, some of the feeding rollers 11 are installed on the surface of the feeding frame 1, and the feeding belts 12 are sleeved on the surface of multiple groups of feeding rollers 11.

[0033] The surface of the feeding belt 12 is provided with anti-slip tabs 13, and the anti-slip tabs 13 are arranged in multiple arrays. Anti-slip adhesive dots 131 are installed on the surface of the anti-slip tabs 13.

[0034] The paper processing and coloring surface unfolding guide unit is set in the guide frame 8 area. It is used to stretch and unfold the corrugated paper during coloring to achieve uniform color spraying.

[0035] The paper processing and coloring surface unfolding guide unit includes a guide part, which includes a guide frame 8. The guide frame 8 is disposed on the surface of the feeding frame 1. A portion of the feeding rollers 11 are installed inside the guide frame 8, and the feeding belt 12 is also sleeved on the surface of the portion of the feeding rollers 11. An inclined upper guide surface 121 is provided on one side of the guide frame 8, and a coloring plane 123 is provided on the top of the guide frame 8. The inclined upper guide surface 121 and the coloring plane 123 are connected by an arc-shaped guide surface 122.

[0036] The paper processing and coloring surface unfolding guide unit also includes a coloring section, which includes a rotating frame 5. The rotating frame 5 is circular, and independent spray frames 51 are arranged in a ring on the outer surface of the rotating frame 5. The surface of the independent spray frames 51 is provided with through holes. An independent spray chamber 6 is embedded in the top of the independent spray frame 51. A coloring nozzle 61 is connected to the bottom of the independent spray chamber 6. The bottom spray hole area of ​​the coloring nozzle 61 passes through the through holes.

[0037] In this embodiment, the coloring nozzle 61 in the independent spray frame 51 area on the outer surface of the rotating frame 5 can fully spray the coloring liquid sprayed from the independent spray chamber 6 onto the surface of the single-layer corrugated cardboard, ensuring the coloring effect in the gap area of ​​the single-layer cardboard surface.

[0038] The top of the U-shaped frame 3 is equipped with a lifting part, which includes a hydraulic telescopic rod 4. The moving end of the hydraulic telescopic rod 4 is equipped with a vertical guide rod 41, and the bottom of the vertical guide rod 41 is fixed to the top of the swivel frame 5.

[0039] An arc-shaped splash guard 7 is installed on the inner side of the U-shaped frame 3 near the guide frame 8, and the guide frame 8 is installed on the surface of the arc-shaped splash guard 7.

[0040] The inner side of the arc-shaped splash-proof shell 7 is provided with a concave adsorption surface 71.

[0041] In this embodiment, the anti-slip convex strips 13 and anti-slip adhesive dots 131 on the surface of the feeding belt 12 restrict the movement of the single-layer corrugated cardboard, so that the cardboard remains stable during the coloring and conveying process, ensuring effective coloring at all positions on the surface of the cardboard.

[0042] Working principle: During the use of this device, the operator introduces the single-layer corrugated cardboard from one end of the feeding rack 1. Before introducing, the single-layer corrugated cardboard is placed and calibrated so that it is parallel to the feeding rack 1. The feeding belt 12 sleeved on the surface of the feeding roller 11 can feed and transport the single-layer corrugated cardboard. During the conveying and surface coloring process, the anti-slip convex strips 13 and anti-slip adhesive dots 131 on the surface of the feeding belt 12 will restrict the movement of the single-layer corrugated cardboard, so that the cardboard remains stable during the coloring and conveying process, ensuring effective coloring of all positions on the cardboard surface.

[0043] When the cardboard moves to the guide frame 8 area under the conveyor belt 12, the surface of the guide frame 8 is composed of three sections: the inclined upper guide surface 121, the arc guide surface 122, and the coloring plane 123. When the single-layer cardboard passes through the inclined upper guide surface 121, the arc guide surface 122, and the coloring plane 123, the single-layer cardboard will be stretched and unfolded. This allows the coloring nozzle 61 in the independent spray frame 51 area installed on the outer surface of the rotary frame 5 to fully spray the coloring liquid sprayed from the independent spray chamber 6 onto the surface of the single-layer corrugated cardboard, ensuring the coloring effect in the gap area of ​​the single-layer cardboard surface.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coloring device for corrugated paper processing, characterized in that: It includes a feeding frame (1), feeding rollers (11), feeding belts (12) and a U-shaped frame (3). The feeding rollers (11) are configured in multiple groups, and some of the feeding rollers (11) are installed on the surface of the feeding frame (1). The feeding belts (12) are sleeved on the surfaces of the multiple groups of feeding rollers (11). A paper processing and coloring surface unfolding guide unit is set in the guide frame (8) area and is used to stretch and unfold the corrugated paper during coloring to achieve uniform color spraying.

2. The coloring equipment for corrugated paper processing according to claim 1, characterized in that: The paper processing and coloring surface unfolding guide unit includes a guide part, the guide part includes a guide frame (8), the guide frame (8) is disposed on the surface of the feeding frame (1), a portion of the feeding roller (11) is installed inside the guide frame (8), the feeding belt (12) is also sleeved on the surface of the portion of the feeding roller (11), an inclined upper guide surface (121) is provided on one side of the guide frame (8), and a coloring plane (123) is provided on the top of the guide frame (8). The inclined upper guide surface (121) and the coloring plane (123) are connected by an arc-shaped guide surface (122).

3. The coloring equipment for corrugated paper processing according to claim 2, characterized in that: The paper processing and coloring surface unfolding guide unit also includes a coloring part, which includes a rotating frame (5). The rotating frame (5) is circular, and independent spray frames (51) are arranged in a ring on the outer surface of the rotating frame (5). The surface of the independent spray frames (51) is provided with through holes. An independent spray chamber (6) is embedded in the top of the independent spray frame (51). A coloring nozzle (61) is connected to the bottom of the independent spray chamber (6). The bottom spray hole area of ​​the coloring nozzle (61) passes through the through hole.

4. The coloring equipment for corrugated paper processing according to claim 3, characterized in that: The top of the U-shaped frame (3) is provided with a lifting part, which includes a hydraulic telescopic rod (4). The moving end of the hydraulic telescopic rod (4) is equipped with a vertical guide rod (41), and the bottom of the vertical guide rod (41) is fixed to the top of the swivel frame (5).

5. The coloring equipment for corrugated paper processing according to claim 4, characterized in that: An arc-shaped splash shield (7) is installed on the inner side of the U-shaped frame (3) near the area of ​​the guide frame (8), and the guide frame (8) is installed on the surface of the arc-shaped splash shield (7).

6. The coloring equipment for corrugated paper processing according to claim 5, characterized in that: The inner side of the arc-shaped splash shield (7) is provided with a concave adsorption surface (71).

7. The coloring equipment for corrugated paper processing according to claim 1, characterized in that: The surface of the feeding belt (12) is provided with anti-slip tabs (13), the anti-slip tabs (13) are arranged in multiple groups, and anti-slip adhesive dots (131) are installed on the surface of the anti-slip tabs (13).

Citation Information

Patent Citations

  • Coloring equipment for corrugated paper processing

    CN220665812U