A die for cutting off the waste of a die-cutting of a non-coated paper

Abstract

The utility model discloses a kind of knife dies for eliminating filmless paper die cutting scrap edge, comprising: die holder, the die holder is opened with multiple forming areas, the forming area is provided with ring cutter, the inside of the ring cutter is provided with and the first elastic member matched with ring knife cutting shape, outside is provided with second elastic member, the first elastic member and second elastic member are used to pop out blanking after ring cutter cutting. By dividing the blade angle into two sections, the knife die life is ensured, and the blade position is avoided to squeeze the material, the edge of the part is improved, the die cutting knife edge is not uneven, the sufficient blade height ensures the vertical pressure during cutting, and sufficient buffer is provided for the paper to avoid wrinkles.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting technology, and in particular to a die-cutting mold for eliminating the chipped edges of uncoated paper. Background Technology

[0002] With increasingly stringent environmental protection requirements, paper packaging is gradually phasing out the lamination process. As the paper surface loses the protective barrier of the film, some paper may flake at the edges during the die-cutting process, resulting in unsightly die-cut edges.

[0003] As paper packaging gradually eliminates the lamination process, the paper surface loses the protective barrier of the film, and some paper will flake at the edges during the die-cutting process, resulting in unsightly die-cutting cuts.

[0004] Therefore, a die-cutting tool that eliminates the chipped edges of non-film paper is still needed to solve the above problems. Utility Model Content

[0005] This utility model provides a die for eliminating the chipped edges of non-film paper during die cutting, thus solving the above-mentioned problems.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A die for eliminating shredded edges in die-cutting of non-film paper includes:

[0008] A mold base is provided with multiple forming areas. A ring cutter is provided on the forming area. A first elastic element matching the cutting shape of the ring cutter is provided on the inner side of the ring cutter, and a second elastic element is provided on the outer side. The first and second elastic elements are used to eject the blank after the ring cutter cuts it out.

[0009] In one embodiment, an annular guide slope is formed on the outer ring of the first elastic element, the annular guide slope being used to guide the target material to fall off.

[0010] In one embodiment, the angle between the annular guide slope and the perpendicular to the horizontal plane is 21 degrees.

[0011] In one embodiment, the cutting edge of the circumferential cutter forms a continuous first and second inclined plane on its outer side, the angle between the first inclined plane and the perpendicular line of the horizontal plane is 13-20 degrees, and the angle between the second inclined plane and the perpendicular line of the horizontal plane is 2-10 degrees.

[0012] In one embodiment, the second elastic element is connected to the second annular groove on the outside of the circumferential cutter, and the vertical distance from the tip of the circumferential cutter to the second annular groove is 2-3 times the thickness of the paper to be cut.

[0013] In one embodiment, the first elastic element is connected within the first annular groove of the mold base, and the vertical distance between the bottom of the first annular groove and the bottom of the second annular groove is 6.7 mm.

[0014] In one embodiment, the first elastic element and the second elastic element are 0.7 mm away from the edge of the ring-shaped blade.

[0015] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0016] By dividing the blade angle into two segments, the die-cutting life is guaranteed, while material squeezing at the blade edge is avoided, improving edge fragmentation of parts and uneven die-cutting edges. Sufficient blade height ensures vertical downward pressure during cutting, providing adequate cushioning for the paper to prevent wrinkles. Especially for stiff paper, it avoids rough, delaminating, or tilted cuts, ensuring a smooth cut surface. In addition, the first and second elastic elements on both the inner and outer sides can quickly eject waste and useful material, preventing waste from being entangled. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of the entire embodiment of this utility model;

[0019] Figure 3 This is a cross-sectional view of an embodiment of the present utility model;

[0020] Figure 4 yes Figure 3 A magnified view of part A.

[0021] In the figure: 1. Mold base; 2. Ring cutter; 3. First elastic element; 4. Second elastic element; 5. Annular guide slope; 61. First inclined surface; 62. Second inclined surface; 7. Second annular groove; 8. First annular groove. Detailed Implementation

[0022] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0023] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0024] Reference Figure 1-4 This utility model provides a die for eliminating shredded edges when cutting non-film paper, comprising:

[0025] A die base 1 has multiple forming zones, each containing a ring cutter 2. The inner side of the ring cutter 2 has a first elastic element 3 matching the cutting shape of the ring cutter, and the outer side has a second elastic element 4. The first and second elastic elements 3 and 4 eject the material cut by the ring cutter 2. The cutting shape of the ring cutter matches the shape of the paper product, which is rigid cardboard. The die base 1 is typically mounted on the punch or punch seat of a stamping machine; no further limitations are specified here. During die cutting, the outer top surfaces of the first and second elastic elements 3 and 4 can first contact the sides of the paper, providing auxiliary elastic contact and enabling rapid material ejection. The high-hardness inner elastic elements tightly compress the paper at the cut edge before die cutting, preventing the paper from loosening and tearing during die cutting, thus avoiding chipped edges and achieving a neat cut.

[0026] In one implementation, an annular guide slope 5 is formed on the outer side of the first elastic member 3. The annular guide slope 5 is used to guide the target material to fall off. When the cutting action occurs, the waste material on the outer side of the guide slope formed on the outer side of the first elastic member 3 will be pushed out at the moment of cutting, which can decisively and quickly separate the waste material and the product, reducing the probability of uneven edges.

[0027] In one embodiment, the angle between the annular guide slope 5 and the perpendicular line to the horizontal plane is 21 degrees. Experiments have shown that when the slope and the vertical line form a 21-degree angle, this annular blade angle reduces cutting force and friction, thereby increasing cutting speed and extending blade life.

[0028] In one embodiment, the cutting edge of the annular cutter 2 forms a continuous first inclined surface 61 and a second inclined surface 62 on its inner side. The angle between the first inclined surface 61 and the perpendicular line to the horizontal plane is 13-20 degrees, and the angle between the second inclined surface 62 and the perpendicular line to the horizontal plane is 2-10 degrees. Two angles are formed on the inner annular surface. During die-cutting, the first inclined surface 61 reduces the squeezing of the inner paper edge during the die-cutting process, thereby preventing wrinkles from forming on the paper. With the paper in a flat state, the direct vertical cutting force can quickly cut the paper. The larger angle ensures that the die-cutting life is not reduced. The smaller angle of the second section ensures that thicker paper slides smoothly without jamming. By setting the cutting edge in a two-section design, the die-cutting life can be improved while avoiding material squeezing at the cutting edge, thus improving the flatness of the die edge after die-cutting.

[0029] In one embodiment, the second elastic element 4 is connected within the second annular groove 7 on the outer side of the ring cutter 2, and the vertical distance from the tip of the ring cutter 2 to the second annular groove 7 is 2-3 times the thickness of the paper to be cut. The blade length is 2-3 times the thickness of the paper, and this 2-3 times thickness design provides space for compression of the elastic element. For thicker cardstock, the elastic element can be fully compressed; for thinner paper, the elastic element still provides sufficient rebound force.

[0030] In one embodiment, the first elastic element 3 is connected within the first annular groove 8 of the mold base 1, and the vertical distance between the bottom of the first annular groove 8 and the bottom of the second annular groove 7 is 6.7 mm. The relatively deep embedment of the first elastic element 3 ensures a large degree of elastic compression during compression, providing sufficient elastic force for rapid and stable paper ejection. The blade tip is the tip of the annular blade, which will not be explained again below.

[0031] The first elastic element 3 and the second elastic element 4 are 0.7 mm away from the edge of the annular cutter. During the downward die-cutting process, the first elastic element 3 and the second elastic element 4 abut against both sides of the edge of the cutter. The first elastic element 3 and the second elastic element 4 can elastically abut against the surface of the paper first. When the cutter falls, the paper is fixed in position, and the cutter can stably cut the paper. This reduces the squeezing of the inner edge of the paper during the die-cutting process.

[0032] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A die cutter for eliminating die cut trim from a no- film paper sheet, characterized by, include: A mold base is provided with multiple forming areas. A ring cutter is provided on the forming area. A first elastic element matching the cutting shape of the ring cutter is provided on the inner side of the ring cutter, and a second elastic element is provided on the outer side. The first and second elastic elements are used to eject the blank after the ring cutter cuts it out.

2. The die-cutting mold according to claim 1, characterized in that, An annular guide slope is formed on the outer side of the first elastic element, which is used to guide the target material to fall off.

3. The die-cutting mold according to claim 2, characterized in that, The angle between the annular guide slope and the perpendicular line to the horizontal plane is 21 degrees.

4. The die-cutting mold according to claim 1, characterized in that, The circumferential cutter has a continuous first and second inclined surface formed on its inner side from the cutting edge. The angle between the first inclined surface and the perpendicular line of the horizontal plane is 13-20 degrees, and the angle between the second inclined surface and the perpendicular line of the horizontal plane is 2-10 degrees.

5. The die-cutting mold according to claim 1, characterized in that, The second elastic element is connected to the second annular groove on the outside of the ring cutter, and the vertical distance from the tip of the ring cutter to the second annular groove is 2-3 times the thickness of the paper to be cut.

6. The die-cutting mold according to claim 5, characterized in that, The first elastic element is connected in the first annular groove of the mold base, and the vertical distance between the bottom of the first annular groove and the bottom of the second annular groove is 6.7 mm.

7. The die-cutting mold according to claim 5, characterized in that, The tops of the first and second elastic elements are 0.7 mm away from the edge of the ring-shaped blade.

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