Die-cutting knife board for color printing corrugated board

By using creasing steel wires and gluing lines of specific specifications on the color-printed corrugated cardboard die-cutting blade, combined with ventilation grooves and ejection components, the problem of unstable die-cutting of corrugated cardboard was solved, achieving higher quality production results and cost savings.

CN224103113UActive Publication Date: 2026-04-10SUZHOU NEW CENTURY COLOR PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In existing technologies, the forming process where the corrugated direction is perpendicular to the direction of the die-cutting steel wire is unstable during color box die cutting, which can easily lead to problems such as box clogging and edge overflow, affecting production quality.

Method used

Using a 1.42*22.9mm gluing line and a 0.71*22.9mm creasing steel line, combined with a ventilation groove and ejection assembly, it ensures that the air is discharged evenly during the die-cutting process of the corrugated cardboard, avoiding uneven stress. The elastic pad and push block structure are used to separate the corrugated cardboard from the die-cutting plate.

Benefits of technology

It improves the forming stability of color-printed corrugated cardboard, avoids printing marks, improves production quality, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224103113U_ABST
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Abstract

The utility model discloses a die-cutting knife board for a color printing corrugated board, which comprises a board body, a mounting groove is arranged on the outer wall of the top of the board body, an indentation steel wire, a box pasting wire and a die-cutting knife wire which are connected with one another are fixed on the inner wall of the mounting groove, the box pasting wire adopts a pressing wire with the specification of 1.42 * 22.9 mm, the indentation steel wire adopts a pressing wire with the specification of 0.71 * 22.9 mm, and the die-cutting knife wire adopts a die-cutting knife wire with the specification of 1.42 * 22.9 mm. Elastic filler strips are fixedly adhered to the outer wall of the plate body, the elastic filler strips are arranged along the outer walls of the two sides of the die-cutting knife line, a plurality of vent grooves are formed in the outer wall of the plate body, and a plurality of push-out assemblies are arranged on the outer wall of the plate body; according to the utility model, the box pasting line is arranged to be two mutually parallel indentation steel wires or one indentation steel wire, the box pasting line adopts the pressing line with the specification of 1.42 * 22.9 mm, and the indentation steel wire adopts the pressing line with the specification of 0.71 * 22.9 mm, so that the forming is stable, and the production quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to die cutting knife plate technical field, especially to a die cutting knife plate for color printing corrugated paperboard. BACKGROUND

[0002] Die cutting is a cutting process of printing and packaging products in the later processing, after installing and clamping the die cutting knife template in the fixed frame of the die cutting machine, positioning is pushed into the die cutting machine. By setting a certain pressure and speed of the die cutting machine, using the shaped die cutting knife template, the process of pressing the printing and packaging products into concave-convex, groove marks or cutting, for example, can achieve the effect of forming a packaging carton.

[0003] Through the search, the patent with the patent publication number CN212919728U discloses a die cutting plate for fluorescent tube packaging carton, which comprises a plate body, a die cutting knife and an indentation strip. The patent sets the edge of the indentation strip extruding the corrugated paperboard as an arc surface, which can reduce the shearing force on the corrugated paperboard and avoid its rupture. However, when producing single-B corrugated color boxes, there are two types: one is parallel to the die cutting knife plate steel line direction, and the other is perpendicular to the die cutting knife plate steel line direction. For the color boxes with the corrugated direction perpendicular to the die cutting knife plate steel line direction, since the directions are perpendicular, the corrugation cannot be changed, which can ensure the forming effect. For the color boxes with the corrugated direction parallel to the die cutting knife plate steel line direction, since during die cutting, the place pressed by the steel line cannot be guaranteed to be on the corrugation or in the groove of the corrugation at the same time, which causes unstable forming after die cutting and easily causes problems such as box sticking and edge rising, affecting the production quality. UTILITARIAN CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a die cutting knife plate for color printing corrugated paperboard.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A die cutting knife plate for color printing corrugated paperboard, comprising a plate body, an installation groove is formed in the top outer wall of the plate body, a indentation steel line, a box sticking line and a die cutting knife line connected with each other are fixed to the inner wall of the installation groove, the box sticking line adopts a pressing line with a specification of 1.42*22.9mm, and the indentation steel line adopts a pressing line with a specification of 0.71*22.9mm.

[0007] As a further scheme of the utility model: the box sticking line is composed of two mutually parallel pressing lines.

[0008] As a further scheme of the utility model: the box sticking line is composed of one pressing line.

[0009] As a further scheme of the utility model: the plate body one end outer wall is equipped with handle hole, the plate body outer wall is pasted and is equipped with elastic gasket, and the elastic gatcher is arranged along the both sides of die cutting knife line, the plate body outer wall is equipped with multiple ventilation grooves, and the ventilation grooves are located below the indentation steel line, paste box line and die cutting knife line.

[0010] As a further scheme of the utility model: the ventilation groove both ends are located at the both sides of indentation steel line, paste box line and die cutting knife line.

[0011] As a further scheme of the utility model: the plate body outer wall is equipped with multiple push-out assemblies, and the push-out assembly includes multiple telescopic rods and mounting holes.

[0012] As a further scheme of the utility model: the mounting hole is equipped on the plate body outer wall, the multiple telescopic rods are fixed on the inner wall of mounting hole, and one end of the multiple telescopic rods is fixedly connected with a push block.

[0013] As a further scheme of the utility model: the side wall of multiple telescopic rods is sleeved with a spring, and the both ends of the spring are connected with the push block and the plate body.

[0014] Compared with the prior art, the utility model provides a die cutting knife plate for color printing corrugated paperboard, which has the following beneficial effects:

[0015] 1. The utility model discloses a paste box line is set as two parallel indentation steel lines or one indentation steel line, and the paste box line adopts the indentation line with the specification of 1.42*22.9mm, and the indentation steel line adopts the indentation line with the specification of 0.71*22.9mm, so that the forming is stable, and the production quality is improved.

[0016] 2. The utility model discloses a ventilation groove, in the die cutting indentation process, the space surrounded by the elastic gasket, die cutting knife line, plate body and corrugated paperboard rapidly accumulates a large amount of air, the air is discharged outward from the ventilation groove, and the corrugated paperboard is prevented from being affected by the gas to cause uneven stress and produce marks.

[0017] 3. The utility model discloses a push-out assembly, which can push the corrugated paperboard away from the elastic gasket and die cutting knife line, so that the corrugated paperboard is better separated from the die cutting knife plate.

[0018] The part not involved in the device is same as or can be realized by the prior art, and the utility model has the advantages of simple structure and convenient operation. ACCURACY

[0019] Figure 1 The utility model proposes a whole structure schematic view of a die cutting knife plate for color printing corrugated paperboard;

[0020] Figure 2This is a partial structural schematic diagram of a die-cutting blade for color printing corrugated cardboard proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a die-cutting blade ejection assembly for color-printed corrugated cardboard proposed in this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of Embodiment 2 of a die-cutting blade for color-printed corrugated cardboard proposed in this utility model.

[0023] In the diagram: 1. Plate; 2. Handle hole; 3. Indentation steel line; 4. Glue box line; 5. Elastic pad; 6. Die-cutting blade line; 7. Ventilation groove; 8. Ejection assembly; 9. Push block; 10. Multi-section telescopic rod; 11. Spring; 12. Mounting hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation 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.

[0026] Example 1

[0027] A die-cutting blade for color-printed corrugated cardboard, such as Figures 1 to 3 As shown, the device includes a plate 1. A mounting groove is formed on the outer top wall of the plate 1. An indentation steel wire 3, a gluing wire 4, and a die-cutting wire 6 are fixed to the inner wall of the mounting groove and are interconnected. The gluing wire 4 consists of two parallel pressure wires. The pressure wires are a mature existing technology, and their basic structure is well-known to those skilled in the art, so it will not be described in detail here. The gluing wire 4 uses a pressure wire with a specification of 1.42*22.9mm, and the indentation steel wire 3 uses a pressure wire with a specification of 0.71*22.9mm. The gluing line 4 is formed and matched with the reverse indentation line with a specification of 4PT-2.7-3.2, and the outer wall of the reverse indentation line is covered with an explosion-proof sticker. The outer wall of the plate 1 is fixed with an elastic pad 5, which is set along the outer walls of both sides of the die-cutting line 6. The outer wall of the plate 1 is provided with multiple ventilation grooves 7, which are located below the indentation steel line 3, the gluing line 4, and the die-cutting line 6, and the two ends of the ventilation grooves 7 are respectively located on both sides of the indentation steel line 3, the gluing line 4, and the die-cutting line 6.

[0028] The outer wall of the plate 1 is provided with multiple push-out components 8. Each push-out component 8 includes multiple telescopic rods 10 and mounting holes 12. The mounting holes 12 are opened on the outer wall of the plate 1. The multiple telescopic rods 10 are fixed to the inner wall of the mounting holes 12. A push block 9 is fixedly connected to one end of the multiple telescopic rods 10. A spring 11 is sleeved on the side wall of the multiple telescopic rods 10. The two ends of the spring 11 are respectively connected to the push block 9 and the plate 1. A handle hole 2 is opened on the outer wall of one end of the plate 1.

[0029] During assembly, mounting grooves are made on board 1 according to the design, and ventilation grooves 7 are made on the basis of the mounting grooves. The creasing steel wire 3, gluing line 4, and die-cutting line 6 are fixed sequentially to the mounting grooves according to the design. Elastic pads 5 are glued on, and the elastic pads 5 are tightly attached to the side wall of the die-cutting line 6 to fix the die-cutting line 6. The assembled die plate is placed on the die-cutting machine, with the reverse creasing line and gluing line 4 positioned opposite each other to perform die-cutting and creasing on the corrugated cardboard. The formation of the gluing line is achieved through the cooperation of the reverse creasing line and the gluing line 4, and ventilation is provided. The explosion-proof stickers applied to the anti-crease lines prevent the lines at the box gluing point from bursting. During the die-cutting and creasing process, as the board 1 moves toward the corrugated cardboard, a large amount of air quickly accumulates in the space between the elastic pad 5, the die-cutting line 6, the board 1, and the corrugated cardboard. The air is discharged outward from the ventilation groove 7. At the same time, the push block 9 is squeezed, the multi-section telescopic rod 10 retracts, and the spring 11 is compressed and deformed. After the die-cutting is completed, the board 1 moves away from the corrugated cardboard, and the spring 11 pushes the push block 9 to reset, pushing the corrugated cardboard away from the elastic pad 5 and the die-cutting line 6.

[0030] By setting the gluing line 4 as two parallel indentation steel lines 3, the molding is stable and the production quality is improved.

[0031] By providing ventilation grooves 7, during the die-cutting and creasing process, a large amount of air quickly accumulates in the space formed by the elastic pads 5 and the die-cutting line 6, the board body 1, and the corrugated cardboard. The air is discharged outward from the ventilation grooves 7, preventing the corrugated cardboard from being affected by gas and causing uneven stress and resulting in marks.

[0032] By incorporating the ejector component 8, the corrugated cardboard can be pushed away from the elastic pad 5 and the die-cutting line 6, allowing the corrugated cardboard to better disengage from the die-cutting plate.

[0033] Example 2

[0034] A die-cutting blade for color-printed corrugated cardboard. This embodiment is based on Embodiment 1 and makes the following improvements, such as... Figure 4 As shown, the gluing line 4 is composed of a pressing line. The gluing line 4 is formed and matched with a 0.8*4.0mm embossing line. The embossing line is a mature existing technology, so it will not be described in detail here.

[0035] Compared with two parallel pressing lines, one pressing line is easier to install, and the use of explosion-proof stickers is reduced, thereby saving cost.

[0036] By replacing two parallel pressing lines with one pressing line, and cooperating with a 0.8*4.0mm pressing line, the pressing line is full and does not burst, installation is easier, and the use of explosion-proof stickers is reduced, thereby saving cost.

[0037] Working principle: when assembling, installation grooves are opened on the plate body 1 according to the design, and ventilation grooves 7 are opened on the basis of the installation grooves, the pressing line 3, the paste box line 4 and the die cutting knife line 6 are fixed in the installation grooves according to the design, the elastic pad strip 5 is pasted, the elastic pad strip 5 is tightly attached to the side wall of the die cutting knife line 6 for fixing the die cutting knife line 6, the assembled knife plate is placed in the die cutting machine, the reverse pressing line or the pressing line is arranged opposite to the paste box line 4, and the corrugated paper is die cut and pressed, the paste box line mark is formed through the cooperation of the reverse pressing line or the pressing line and the paste box line 4, during the die cutting and pressing process, because the plate body 1 moves towards the corrugated paper, the space surrounded by the plate body 1, the corrugated paper, the elastic pad strip 5 and the die cutting knife line 6 rapidly accumulates a large amount of air, the air is discharged outward from the ventilation grooves 7, at the same time, the push block 9 is extruded, the plurality of telescopic rods 10 are contracted, the spring 11 is compressed and deformed, after the die cutting is completed, the plate body 1 moves away from the corrugated paper, the spring 11 drives the push block 9 to reset, and drives the corrugated paper to separate from the elastic pad strip 5 and the die cutting knife line 6.

[0038] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A die-cutting blade for color-printed corrugated cardboard, comprising a plate body (1), characterized in that, The top outer wall of the plate (1) is provided with an installation groove. The inner wall of the installation groove is fixed with an indentation steel wire (3), a gluing wire (4) and a die-cutting wire (6) that are connected to each other. The gluing wire (4) is a 1.42*22.9mm wire, and the indentation steel wire (3) is a 0.71*22.9mm wire.

2. The die-cutting blade for color-printed corrugated cardboard according to claim 1, characterized in that, The gluing line (4) consists of two parallel pressing lines.

3. The die-cutting blade for color-printed corrugated cardboard according to claim 1, characterized in that, The gluing line (4) consists of a single pressing line.

4. The die-cutting blade for color-printed corrugated cardboard according to claim 1, characterized in that, The outer wall of one end of the plate (1) is provided with a handle hole (2). An elastic pad (5) is glued and fixed to the outer wall of the plate (1). The elastic pad (5) is arranged on both sides of the die-cutting line (6). The outer wall of the plate (1) is provided with multiple ventilation grooves (7). The ventilation grooves (7) are located below the indentation steel line (3), the gluing line (4) and the die-cutting line (6).

5. A die-cutting blade for color-printed corrugated cardboard according to claim 4, characterized in that, The ventilation groove (7) is located on both sides of the indentation steel wire (3), the glue box line (4) and the die-cutting blade line (6), respectively.

6. A die-cutting blade for color-printed corrugated cardboard according to claim 1, characterized in that, The outer wall of the plate (1) is provided with a plurality of push-out components (8), each of which includes a multi-section telescopic rod (10) and a mounting hole (12).

7. A die-cutting blade for color-printed corrugated cardboard according to claim 6, characterized in that, The mounting hole (12) is opened on the outer wall of the plate (1), and the multi-section telescopic rod (10) is fixed on the inner wall of the mounting hole (12). One end of the multi-section telescopic rod (10) is fixedly connected to a push block (9).

8. A die-cutting blade for color-printed corrugated cardboard according to claim 7, characterized in that, The multi-section telescopic rod (10) is fitted with a spring (11) on its side wall, and the two ends of the spring (11) are connected to the push block (9) and the plate (1) respectively.

Citation Information

Patent Citations

  • Die-cutting plate for fluorescent tube packaging carton

    CN212919728U