A nine-square positioning method

Abstract

This invention provides a nine-grid positioning method, including an upper die unit and a lower die positioned below the upper die unit. The upper die unit includes a base; an aluminum base is embedded in the base, with its lower surface flush with the lower surface of the base. The aluminum base has an aluminum base positioning structure with equally spaced positioning holes. A copper die is installed below the aluminum base by screws, and the copper die has a copper die positioning structure with equally spaced positioning holes. The difference between the horizontal or vertical distance between the centers of adjacent aluminum base positioning holes and the horizontal or vertical distance between the centers of adjacent copper die positioning holes is the expansion or contraction distance of the material to be die-cut. This invention employs a nine-grid aluminum base positioning structure and a nine-grid copper die positioning structure on the copper die, adapting to expansion and contraction changes in different directions, solving the image shift of paper caused by environmental factors, improving die-cutting accuracy, and effectively ensuring the die-cutting effect.

Description

Technical Field

[0001] This invention relates to the field of die-cutting, and more particularly to the field of paper die-cutting, specifically a nine-square positioning method. Background Technology

[0002] Paper undergoes slight dimensional changes under varying ambient temperatures. While these changes do not affect practical use, they can impact die-cutting precision, causing image misalignment, inaccurate die-cutting, increased waste, and higher costs. Paper tends to shrink when temperature and humidity are low, and stretch when temperature and humidity are high, especially corrugated paper, which shrinks the most. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a nine-square positioning method to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, the present invention provides a nine-square positioning method, including an upper mold unit and a lower mold 2 disposed below the upper mold unit;

[0005] The upper mold unit includes:

[0006] Base 1;

[0007] An aluminum base 3 is embedded in a base 1. The lower surface of the aluminum base 3 is flush with the lower surface of the base 1. An aluminum base positioning structure 5 is provided on the aluminum base 3, which consists of aluminum base positioning holes 4 arranged in an equally spaced array.

[0008] A copper mold 6 is installed below an aluminum base 3 by screws. The copper mold 6 has a copper mold positioning structure 8 with copper mold positioning holes 7 arranged in an equally spaced array.

[0009] During initial installation, the aluminum base positioning hole 4 at the center of the aluminum base positioning structure 5 and the copper mold positioning hole 7 at the center of the copper mold positioning structure 8 are on the same vertical center line.

[0010] The difference between the horizontal or vertical distance between the centers of adjacent aluminum base positioning holes 4 and the horizontal or vertical distance between the centers of adjacent copper mold positioning holes 7 is the expansion or contraction distance of the material to be die-cut.

[0011] According to the preferred embodiment, the copper mold positioning structure 8 has three layers: upper, middle and lower, and each layer has three copper mold positioning holes 7.

[0012] According to the preferred embodiment, the aluminum base positioning structure 5 has three layers: upper, middle and lower, and each layer has three aluminum base positioning holes 4.

[0013] According to the preferred embodiment, the copper mold positioning structure 8 has nine copper mold positioning holes 7 arranged in a grid pattern, and correspondingly, the aluminum base positioning structure 5 has nine aluminum base positioning holes 4 arranged in a grid pattern.

[0014] According to the preferred embodiment, the distance between adjacent aluminum base positioning holes 4 and adjacent copper mold positioning holes 7 is 0.5-2mm.

[0015] According to the preferred embodiment, the aluminum base positioning structure 5 and the copper mold positioning structure 8 are symmetrically arranged on the left and right sides of the aluminum base 3 and the copper mold 6, respectively.

[0016] According to the preferred embodiment, the upper and lower sides of the copper mold 6 are also provided with corresponding lower mold positioning holes 9 for the lower mold 2, and a pair of lower mold positioning holes 9 are arranged diagonally opposite each other.

[0017] According to the preferred embodiment, anti-drop pin holes 10 are provided on the sides of the copper mold 6 and the aluminum base 3.

[0018] A nine-square grid positioning method includes the following steps:

[0019] Step S1: Install the aluminum base 3 inside the base 1. The aluminum base 3 has an aluminum base positioning structure 5. The aluminum base positioning structure 5 has 9 aluminum base positioning holes 4 arranged in a nine-square grid with equal spacing. The spacing between the aluminum base positioning holes 4 is the spacing between the copper mold positioning holes 7 plus or minus the expansion or contraction distance of the material to be die-cut.

[0020] Step S2: According to the direction of the pattern of the material to be die-cut, align the copper mold positioning holes 7 with the corresponding nine-square grid positioning holes 4 on the copper mold positioning structure 8 with the positioning holes 4 on the top aluminum base, and fix them in place with positioning pins.

[0021] According to the preferred embodiment, when the image shifts to the left, the copper mold positioning hole 7 located in the left column is aligned with the aluminum base positioning hole 4 in the top left column and installed by positioning pin.

[0022] When the image shifts to the right, the copper mold positioning hole 7 in the right column is aligned with the aluminum base positioning hole 4 in the top right column and installed by positioning pin.

[0023] When the image shifts upward, the copper mold positioning holes 7 in the upper row are aligned with the aluminum base positioning holes 4 in the upper row and installed by positioning pins.

[0024] When the image shifts downwards, the copper mold positioning holes 7 in the lower row align with the aluminum base positioning holes 4 in the upper lower row and are installed using positioning pins.

[0025] According to the preferred embodiment, when the image shifts to the left and up at the same time, the copper mold positioning hole 7 located at the upper left is aligned with the aluminum base positioning hole 4 at the upper left of the top and installed by positioning pin.

[0026] When the image shifts to the right and up simultaneously, the copper mold positioning hole 7 located at the upper right is aligned with the aluminum base positioning hole 4 at the upper right of the top and installed by positioning pin.

[0027] When the image shifts to the left and down at the same time, the copper mold positioning hole 7 located at the lower left is aligned with the aluminum base positioning hole 4 at the lower left of the top and installed by positioning pin.

[0028] When the image shifts to the right and down simultaneously, the copper mold positioning hole 7 located at the lower right is aligned with the aluminum base positioning hole 4 at the lower right of the top and installed using a positioning pin.

[0029] According to the preferred embodiment, during the initial installation, the copper mold positioning hole 7 located in the center is aligned with the aluminum base positioning hole 4 at the top center and installed by positioning pins, while the copper mold 6 is installed with the aluminum base 3 by bolts passing through it.

[0030] According to the preferred embodiment, the base 1 is made of 18mm multi-layered substrate board.

[0031] This invention employs an aluminum base positioning structure with a nine-grid layout on an aluminum base and a copper mold positioning structure with a nine-grid layout on a copper mold. This adapts to expansion and contraction in different directions, solves the problem of image shift in paper caused by environmental factors, improves die-cutting accuracy, and effectively ensures the die-cutting effect.

[0032] The preferred embodiments of the invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the invention. Attached Figure Description

[0033] Figure 1 The diagram shown is a structural schematic of the present invention.

[0034] Figure 2 This is a top view of the aluminum base in this invention;

[0035] Figure 3 The diagram shown is a structural diagram of the aluminum base in this invention;

[0036] Figure 4 This is a top view of the copper mold in this invention;

[0037] Figure 5 The diagram shown is a structural diagram of the copper mold in this invention.

[0038] Label Explanation

[0039] 1. Base; 2. Lower mold; 3. Aluminum base; 4. Aluminum base positioning hole; 5. Aluminum base positioning structure; 6. Copper mold; 7. Copper mold positioning hole; 8. Copper mold positioning structure; 9. Lower mold positioning hole; 10. Anti-drop pin hole. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this invention may have fewer components, other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0042] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0043] This invention proposes a nine-square positioning method for use in paper die-cutting processes. This invention does not limit the type of paper, but the nine-square positioning method is particularly suitable for coated paper, offset paper, and corrugated paper.

[0044] In general, the nine-square positioning method proposed in this invention mainly includes a base 1, an aluminum base 3, a copper mold 6, and a lower mold 2, which is a resin film. See also... Figure 1 It shows the arrangement of base 1, aluminum base 3, copper mold 6, and lower mold 2.

[0045] To address the issue of image movement caused by paper shrinking or stretching due to environmental factors, which affects the die-cutting effect, the technical solution provided in this embodiment uses a resin film for the lower die 2 to support the die-cut substrate, and the upper die unit is positioned in front of or above the lower die 2 during die-cutting.

[0046] Specifically, within the upper mold unit, the aluminum base 3 is embedded within the base 1, and the copper mold 6 is installed below the aluminum base 3 by screws. The lower surface of the aluminum base 3 is flush with the lower surface of the base 1. Since the installation between the copper mold 6 and the aluminum base 3 requires both positioning and adaptation to the image offset of the substrate, an aluminum base positioning structure 5 is provided on the aluminum base 3, consisting of aluminum base positioning holes 4 arranged in an equally spaced array. A copper mold positioning structure 8 is provided on the copper mold 6, consisting of copper mold positioning holes 7 arranged in an equally spaced array. The aluminum base positioning structure 5 and the copper mold positioning structure 8 ensure adaptation to the image offset in different directions. The aluminum base positioning structure 5 and the copper mold positioning structure 8 have three layers (top, middle, and bottom) and three layers (left, middle, and right) with equal spacing, forming a nine-square grid. Furthermore, to ensure the installation stability of the copper mold 6, the aluminum base positioning structure 5 and the copper mold positioning structure 8 are symmetrically arranged on the left and right sides of the aluminum base 3 and the copper mold 6, respectively.

[0047] The spacing 'a' between adjacent copper mold positioning holes 7 is the diameter of the positioning pin and the distance to prevent the base 1 from bending. Typically, the positioning pin is 4mm in diameter, and the base 1 is made of 18mm thick multi-layered plywood. Considering that the plywood material is prone to breakage if the holes are too close together, the spacing between adjacent copper mold positioning holes 7 is 2mm, and the spacing 'a' between the centers of adjacent copper mold positioning holes 7 is 6mm. If the base 1 is made of aluminum plate, the spacing between adjacent copper mold positioning holes 7 is 0.5mm.

[0048] Considering the shrinkage or expansion of paper due to environmental factors, the distance between the centers of the adjacent aluminum base positioning holes 4 is a+x, where x needs to be obtained statistically based on the data value of the die-cut substrate during shrinkage or expansion.

[0049] As mentioned above, when using it, the value of x is obtained based on the data value of the shrinkage or expansion of the die-cut substrate before die-cutting. Correspondingly, the distance between the centers of the adjacent aluminum base positioning holes 4 is a+x.

[0050] When installing the die-cutting tool, step S1: install the aluminum base 3 inside the base 1, and align it by using the anti-drop pin hole 10 provided on the side.

[0051] Step S2.1: During the initial installation, align the copper mold positioning hole 7 in the center with the aluminum base positioning hole 4 in the top center and install it using the positioning pin. Install the copper mold 6 and aluminum base 3 around the perimeter using bolts passing through them. Install the lower mold 2 on the other side and perform positioning calibration. After confirming that there are no errors, proceed to the next step. If there are any problems, make adjustments.

[0052] Step S2.2:

[0053] When the image shifts to the left, the copper mold positioning hole 7 in the left column is aligned with the aluminum base positioning hole 4 in the top left column and installed by positioning pin.

[0054] When the image shifts to the right, the copper mold positioning hole 7 in the right column is aligned with the aluminum base positioning hole 4 in the top right column and installed by positioning pin.

[0055] When the image shifts upward, the copper mold positioning holes 7 in the upper row are aligned with the aluminum base positioning holes 4 in the upper row and installed by positioning pins.

[0056] When the image shifts downwards, the copper mold positioning holes 7 in the lower row are aligned with the aluminum base positioning holes 4 in the upper lower row and installed by positioning pins.

[0057] When the image shifts to the left and up at the same time, the copper mold positioning hole 7 located at the upper left is aligned with the aluminum base positioning hole 4 at the upper left of the top and installed by positioning pin.

[0058] When the image shifts to the right and up simultaneously, the copper mold positioning hole 7 located at the upper right is aligned with the aluminum base positioning hole 4 at the upper right of the top and installed by positioning pin.

[0059] When the image shifts to the left and down at the same time, the copper mold positioning hole 7 located at the lower left is aligned with the aluminum base positioning hole 4 at the lower left of the top and installed by positioning pin.

[0060] When the image shifts to the right and down at the same time, the copper mold positioning hole 7 located at the lower right is aligned with the aluminum base positioning hole 4 at the lower right of the top and installed by positioning pin.

[0061] Step S3: Die-cut the material to be die-cut.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A nine-square positioning method, characterized in that, include: The upper mold unit and the lower mold (2) located below the upper mold unit; The upper mold unit includes: Base (1); An aluminum base (3) is embedded in a base (1). The lower surface of the aluminum base (3) is flush with the lower surface of the base (1). An aluminum base positioning structure (5) is provided on the aluminum base (3) by means of aluminum base positioning holes (4) arranged in an equally spaced array. A copper mold (6) is installed below an aluminum base (3) by screws. A copper mold positioning structure (8) is formed on the copper mold (6) by copper mold positioning holes (7) arranged in an equally spaced array. During initial installation, the aluminum base positioning hole (4) at the center of the aluminum base positioning structure (5) and the copper mold positioning hole (7) at the center of the copper mold positioning structure (8) are on the same vertical center line; The difference between the horizontal or vertical distance between the centers of adjacent aluminum base positioning holes (4) and the horizontal or vertical distance between the centers of adjacent copper mold positioning holes (7) is the expansion or contraction distance of the material to be die-cut; The copper mold positioning structure (8) has three layers: upper, middle and lower, and each layer has three copper mold positioning holes (7). The aluminum base positioning structure (5) has three layers: upper, middle and lower, and each layer has three aluminum base positioning holes (4). The aluminum base positioning structure (5) and the copper mold positioning structure (8) are symmetrically arranged on the left and right sides of the aluminum base (3) and the copper mold (6), respectively. The spacing a between adjacent copper mold positioning holes (7) is the diameter of the positioning pin and the distance to prevent the base (1) from bending; Due to the shrinkage or expansion of the paper caused by environmental factors, the distance between the centers of the adjacent aluminum base positioning holes (4) is a+x, where x is the data value of the shrinkage or expansion of the die-cut substrate.

2. The nine-square positioning method according to claim 1, characterized in that, The distance between the adjacent aluminum base positioning hole (4) and the adjacent copper mold positioning hole (7) is 0.5-2mm.

3. The nine-square positioning method according to claim 1, characterized in that, The copper mold (6) is also provided with lower mold positioning holes (9) corresponding to the lower mold (2) on its upper and lower sides, and a pair of lower mold positioning holes (9) are arranged diagonally opposite each other.

4. A nine-square positioning method, characterized in that, Includes the following steps: Step S1: Install the aluminum base (3) inside the base (1). The aluminum base (3) is provided with an aluminum base positioning structure (5). The aluminum base positioning structure (5) is provided with a nine-square grid of equally spaced aluminum base positioning holes (4). The spacing between the aluminum base positioning holes (4) is the spacing between the copper mold positioning holes (7) plus or minus the expansion or contraction distance of the material to be die-cut. Step S2: According to the direction of the pattern of the material to be die-cut, align the copper mold positioning holes (7) with the positioning holes (4) of the top aluminum base with the corresponding nine-square grid on the copper mold positioning structure (8), and fix them in place with positioning pins.

5. The nine-square positioning method according to claim 4, characterized in that, In step S2: When the image shifts to the left, the copper mold positioning hole (7) in the left column is aligned with the aluminum base positioning hole (4) in the top left column and installed by positioning pin. When the image shifts to the right, the copper mold positioning hole (7) in the right column is aligned with the aluminum base positioning hole (4) in the top right column and installed by positioning pin. When the image shifts upward, the copper mold positioning holes (7) in the upper row are aligned with the aluminum base positioning holes (4) in the upper row and installed by positioning pins. When the image shifts downwards, the copper mold positioning holes (7) in the lower row are aligned with the aluminum base positioning holes (4) in the upper lower row and installed by positioning pins.

6. The nine-square positioning method according to claim 5, characterized in that, In step S2: When the image shifts to the left and up at the same time, the copper mold positioning hole (7) located at the upper left is aligned with the aluminum base positioning hole (4) at the upper left and installed by the positioning pin. When the image shifts to the right and up at the same time, the copper mold positioning hole (7) located on the upper right is aligned with the aluminum base positioning hole (4) on the upper right and installed by the positioning pin; When the image shifts to the left and down at the same time, the copper mold positioning hole (7) located at the lower left is aligned with the aluminum base positioning hole (4) at the lower left of the top and installed by the positioning pin. When the image shifts to the right and down simultaneously, the copper mold positioning hole (7) located at the lower right is aligned with the aluminum base positioning hole (4) at the lower right of the top and installed by the positioning pin.

7. The nine-square positioning method according to claim 6, characterized in that, During the initial installation in step S2, the copper mold positioning hole (7) located in the center is aligned with the aluminum base positioning hole (4) at the top center and installed by positioning pins. Bolts are used to pass through the copper mold (6) and install it to the aluminum base (3) around the perimeter.

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