A cross-cutting knife, a die-cutting mold, and a packaging box

Abstract

This utility model relates to the field of die-cutting tool technology and discloses a cross-cutting blade for cutting the intersection of cutting lines on cardboard. It includes a blade body formed by two intersecting blades, the blade body having a cylindrical structure with a cross-shaped cross-section. The top of the blade body is a cutting edge, the cutting surface of which extends from the intersection to the end of the blade body. Connecting portions extend outward from both sides of the end of the blade body, and these connecting portions are used to connect the blades. This solution achieves cutting of the intersection cutting lines on cardboard through the cross-shaped blade body. The blade body is a one-piece structure with a continuous, uninterrupted cutting surface, thus enabling continuous cutting of the intersection cutting lines and obtaining a smooth, continuous cutting surface. The cutting can be completed in one pass, eliminating the need to tear off the adhesive joint. The blade body can be connected to other straight-shaped blades through the connecting portions for combined use.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting tool technology, and in particular to a cross-engraving knife, a die-cutting mold, and a packaging box. Background Technology

[0002] Die-cutting dies are molds used in the production of products. They are typically used for die-cutting the product's shape, where the dies are assembled to form the die-cut shape according to the product's shape. When cutting intersecting lines, especially cross-shaped lines, the dies need to be designed with a cross-shaped structure. However, cross-shaped dies are difficult to form in one piece; usually, several blades are combined to obtain a cross-shaped die. Conventional cross-shaped dies place multiple long blades in a base plate, with tiny gaps between the blades at the intersections. Therefore, the material cannot be cut through at the intersections; instead, the material is separated by external force due to the insufficient strength of the bonded points after cutting. This method results in a less smooth and continuous cut surface, and the yield rate needs improvement.

[0003] Chinese patent CN202022716304.1 discloses a seamless splicing structure for die-cutting blades, including a first blade and a second blade. The first blade has a contact portion on its sidewall near the blade edge, and the second blade has a splicing portion at its end near the blade edge. The splicing portion is inserted into the contact portion to complete the seamless splicing of the die-cutting blades. This invention achieves seamless splicing of the first and second blades by combining the contact portion on the first blade with the splicing portion on the second blade. The seamless splicing includes the connection of an end protrusion on the second blade with the first blade, thus preventing the end protrusion from deforming and wearing away, increasing the number of times the die-cutting template blades can cut products, improving production efficiency, and reducing blade consumable costs. However, this structure can only solve the connection of blades on one side and cannot achieve the connection of blades in a cross shape formed by connecting both ends.

[0004] This invention overcomes the shortcomings of the prior art by providing a cross-engraving blade, a die-cutting mold, and a packaging box, which can achieve the connection of cross blades. Utility Model Content

[0005] The main purpose of this utility model is to provide a cross-cutting knife for cutting the intersection of cutting lines on cardboard. It includes a knife body formed by two blades crossing each other. The knife body has a cylindrical structure and a cross-shaped cross section. The top of the knife body is a cutting edge. The cutting surface of the cutting edge extends from the intersection of the knife body to the end of the knife body. Connecting parts extend outward from both sides of the end of the knife body. The connecting parts are used to connect the blades.

[0006] Optionally, the width of the connecting part is greater than the width of the end of the blade body, and the middle part of the connecting part is provided with a mounting groove. The width of the mounting groove is the same as the width of the end of the blade body, and the bottom of the mounting groove is located on the same plane as the end of the blade body.

[0007] Optionally, the bottom of the mounting groove extends into positioning grooves on both sides, the positioning grooves and the mounting groove are perpendicularly arranged, and the positioning grooves and the mounting grooves are at the same height.

[0008] Optionally, the blade is installed in the mounting groove, the blade is fixed in the positioning groove, the blade is aligned with the cutting edge, the blade and the cutting edge are in close contact, the height of the blade matches the height of the cutting edge, and the cutting surface of the blade and the cutting surface of the cutting edge are smoothly transitioned.

[0009] Optionally, the height of the cutting blade is higher than the connecting portion, and there is a predetermined distance between the bottom of the cutting blade and the connecting portion.

[0010] Optionally, the blade body is a cross-shaped blade body, the included angle between adjacent ends of the blade body is 90 degrees, and the length of each end is equal.

[0011] Optionally, the blade body is made of alloy steel or aluminum alloy.

[0012] This utility model also provides a die-cutting die, including the aforementioned cross-engraving blade, and a base plate, wherein the base plate is provided with the cross-engraving blade.

[0013] This utility model also provides a packaging box, including a box body, which is obtained by cutting with the die-cutting die, and the intersection of the cut lines of the box body is obtained by cutting with a cross engraving knife, and the cut surface of the cardboard is a smooth and continuous surface.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The cross-cutting knife provided by this utility model cuts through the intersection lines of cardboard using a cross-shaped blade body. The blade body is a one-piece molded structure with a continuous, uninterrupted cutting surface, allowing for continuous cutting of intersection lines and producing a smooth, continuous cut surface. This allows for a single, complete cut, eliminating the need to tear off adhesive joints. The blade body can be connected to other straight-shaped blades via a connecting part, enabling combined use of the blades. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 This is a schematic diagram of an embodiment of the cross-engraving knife of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of an embodiment of the cross-engraving knife of this utility model. Figure 2 ;

[0019] Figure 3 This is a top view of an embodiment of the cross-engraving knife of this utility model;

[0020] Figure 4 This is a physical image of an embodiment of the cross-engraving tool of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-engraving knife embodiment and blade combination of this utility model.

[0022] Figure label:

[0023] 10-Blade body; 11-Cutting blade; 12-End; 13-Connecting part; 131-Mounting groove; 132-Positioning groove. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0025] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0026] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1-3 The diagram shown is a schematic representation of an embodiment of the cross-engraving tool provided by this utility model.

[0028] Please refer to Figure 1-3 This embodiment is used to cut the intersection of the cutting lines of cardboard. It includes a blade body 10 formed by two blades crossing each other. The blade body 10 has a columnar structure, specifically a structure of two square columns crossing each other. The cross section of the blade body 10 is cross-shaped.

[0029] The top of the blade body 10 is a cutting edge 11. The cutting surface of the cutting edge 11 extends from the intersection of the blade body 10 to the end 12 of the blade body 10. Connecting parts 13 extend outward from both sides of the end 12 of the blade body 10. The connecting parts 13 are used to connect the blades. The blades are connected to achieve the combination of the blades to realize the die cutting of cardboard of different shapes.

[0030] In one embodiment, the width of the connecting portion 13 is greater than the width of the end 12 of the blade body 10. A mounting groove 131 is provided in the middle of the connecting portion 13. The width of the mounting groove 131 is the same as the width of the end 12 of the blade body 10, so that the width of the blade is equal to that of a single blade of the blade body 10, thus maintaining the continuity of the overall blade side. The bottom of the mounting groove 131 (groove bottom) is located on the same plane as the end 12 of the blade body 10, so that after the blade is inserted into the mounting groove 131, the blade is in close contact with the blade body, with no gap between them.

[0031] Furthermore, positioning grooves 132 extend from the bottom of the mounting groove 131 to both sides. The positioning grooves 132 and the mounting groove 131 are perpendicularly arranged, and the heights of the positioning grooves 132 and the mounting groove 131 are equal. The positioning grooves 132 are used for mounting, positioning, and fixing the blade, preventing the blade from shifting laterally along the mounting groove 131.

[0032] Specifically, the blade is installed in the mounting slot 132, and the positioning slot 132 fixes the blade. The blade is aligned with the cutting edge 11, and the blade and cutting edge 11 are in close contact. The height of the blade matches the height of the cutting edge 11, and the cutting surface of the blade and the cutting surface of the cutting edge 11 are smoothly transitioned. After the blade is installed in the mounting slot 132, the blade and the cutting edge 11 of the blade body 10 are aligned in both the horizontal and vertical directions, and the outer surfaces of the blade and the cutting edge 11 of the blade body are also aligned. The two are in close contact without gaps, and visually they form a single structure to ensure that the cut surface obtained from cutting the material is a continuous and smooth surface.

[0033] In one embodiment, the cutting edge 11 is higher than the connecting portion 13, and the height of the blade after insertion into the mounting groove 131 is also higher than the height of the mounting groove 131. Furthermore, there is a predetermined distance between the bottom of the cutting edge 11 and the connecting portion 13. Specifically, both the cutting edge 11 and the blade extend a certain distance from the upper surface of the connecting portion 13 to prevent interference between the connecting portion and the cutting material during cutting. The distance between the bottom of the cutting edge 11 and the connecting portion 13 ensures the connection strength of the cutting edge 11 itself.

[0034] The overall structure of the cutter body 10, including the cutting edge 11, end 12, mounting groove 131 and positioning groove 132, can be integrally machined by lathe or milling machine, resulting in high structural strength, long service life and convenient manufacturing.

[0035] In one embodiment, the blade body 10 is a cross-shaped blade body, and the included angle between adjacent ends 12 of the blade body 10 is 90 degrees, with each end 12 having an equal length. The illustrations of this embodiment use a cross-shaped blade body for explanation.

[0036] In one embodiment, the blade body 10 is made of alloy steel or aluminum alloy.

[0037] This utility model also provides an embodiment of a die-cutting die, including the aforementioned cross-engraving blade and a base plate. The base plate is provided with the cross-engraving blade and is used to install and fix the blade and the cross-engraving blade. The specific structure and installation method can be referred to the relevant content in the applicant's prior patent application (patent number: 202322470808.3, patent name: an adjustable sandwich die), which will not be repeated here.

[0038] This utility model also provides a packaging box embodiment, including a box body, which is obtained by cutting with the above-mentioned die-cutting knife. The intersection of the cut lines of the box body is obtained by cutting with a cross engraving knife, and the cut surface of the cardboard is a smooth and continuous surface.

[0039] In summary, the embodiments provided by this utility model achieve cutting of intersecting slit lines on cardboard through a cross-structured blade. The blade is a one-piece molded structure with a continuous, uninterrupted cutting surface, thus enabling continuous cutting of intersecting slit lines and obtaining a smooth, continuous cutting surface. This allows for a single-pass cutting, eliminating the need to tear off adhesive joints. The blade can be connected to other straight-shaped blades via a connecting part, enabling combined use of the blades.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cross-engraving tool, characterized in that, The cutting edge for cutting cardboard includes a blade body formed by two blades intersecting and integrally formed. The blade body has a cylindrical structure and an intersecting cross-section. The top of the blade body is a cutting edge. The cutting surface of the cutting edge extends from the intersection of the blade bodies to the end of the blade body. Connecting portions extend outward from both sides of the end of the blade body, and the connecting portions are used to connect the blades.

2. The cross-engraving knife according to claim 1, wherein The width of the connecting part is greater than the width of the end of the blade body. The middle part of the connecting part is provided with a mounting groove. The width of the mounting groove is the same as the width of the end of the blade body. The bottom of the mounting groove is located on the same plane as the end of the blade body.

3. The cross engraving tool of claim 2, wherein, The bottom of the mounting groove extends into positioning grooves on both sides. The positioning grooves are perpendicular to the mounting groove, and the positioning grooves and the mounting groove are at the same height.

4. The cross engraving tool of claim 3, wherein The blade is installed in the mounting slot, the blade is fixed in the positioning slot, the blade is aligned with the cutting edge, the blade and the cutting edge are in close contact, the height of the blade matches the height of the cutting edge, and the cutting surface of the blade and the cutting surface of the cutting edge are smoothly transitioned.

5. The cross engraving tool of claim 1 wherein, The cutting edge is higher than the connecting part, and there is a predetermined distance between the bottom of the cutting edge and the connecting part.

6. The cross-carriage knife of claim 1, wherein, The blade body is cross-shaped, with an included angle of 90 degrees between adjacent ends, and each end is of equal length.

7. The cross-carriage knife of claim 1 wherein, The blade body is made of alloy steel or aluminum alloy.

8. A die-cutting die, characterized in that, The device includes a cross-engraving tool as described in any one of claims 1-7, and also includes a base plate on which the cross-engraving tool is provided.

9. A package, characterized in that The box body is obtained by die cutting using the die-cutting tool described in claim 8. The intersection of the cut lines of the box body is obtained by cross engraving, and the cut surface of the cardboard is a smooth and continuous surface.

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