CN213261338U

CN213261338U - Creasing line cutter for plastic packing box

Info

Publication number: CN213261338U
Application number: CN202021494963.9U
Authority: CN
Inventors: 余平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-05-25
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a creasing line cutter of a plastic packaging box, belonging to the field of creasing line cutters and comprising a cutter body, wherein the cutter body is a strip-shaped plate-shaped body, and one end of the cutter body along the length direction is provided with a creasing line blade part; the section of the edge part of the indentation line is trapezoidal; a plurality of bulges distributed at intervals are arranged on the end surface of the indentation line edge part along the length direction to form a tooth-shaped edge part distributed at intervals in a convex-concave manner; the shape of the bulge is triangular, and the peak tip of the triangle is in arc transition. The indentation line cutting part of the indentation line cutter is provided with the convex-concave alternative tooth-shaped cutting part, so that the width of the indentation line end of the cutter is reduced, the downward pressing resistance of the cutter is reduced, and the processing is more convenient.

Description

Creasing line cutter for plastic packing box

Technical Field

The utility model belongs to the creasing line cutter field, in particular to a creasing line cutter of a plastic packaging box.

Background

The existing plastic packing box has a crease line which is extruded by a straight stamping cutter without a blade part and has a certain depth, and due to the thin and crisp particularity of the plastic sheet, when the plastic sheet is processed, the stamping cutter needs to apply moderate pressure when stamping the crease line, the crease line is easy to break when the pressure is too large, and the crease line is not easy to fold when the pressure is too small. When plastic sheets with different materials and different thicknesses are punched with crease lines, the pressing pressure needs to be readjusted, so that a certain rejection rate is often generated, and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the purpose of the present disclosure is to provide a creasing line cutter of a plastic packaging box, which solves the problem that the pressure applied by the creasing line cutter needs to be strictly controlled when a creasing line is punched in the prior art.

The purpose of the disclosure can be realized by the following technical scheme:

the creasing line cutter of the plastic packaging box comprises a cutter body, wherein the cutter body is a strip-shaped plate, and one end of the cutter body along the length direction is provided with a creasing line cutting part.

The section of the edge part of the indentation line is trapezoidal.

The end surface of the indentation line edge part along the length direction is provided with a plurality of bulges distributed at intervals to form a tooth-shaped edge part distributed at intervals in a convex-concave manner.

The shape of the bulge is triangular, and the peak tip of the triangle is in arc transition.

Further, the cross-sectional shape of the indentation edge portion may be an isosceles trapezoid or a non-isosceles trapezoid, and preferably an isosceles trapezoid.

Furthermore, the included angle between the extension lines of the two bevel edges of the indentation line edge part is an acute angle.

Furthermore, the included angle between the extension lines of the two oblique edges of the indentation edge part is 30-60 degrees.

Furthermore, the included angle between the extension lines of the two oblique edges of the indentation edge part is 55 degrees.

Further, the distance between the protrusions may be equal or unequal.

Furthermore, the distance between every two protrusions is 0.10-0.35 mm.

Further, the distance between the protrusions is 0.25 mm.

Furthermore, the height of each bulge is 0.1 mm-0.15 mm.

The beneficial effect of this disclosure:

the indentation line cutting part of the indentation line cutter is provided with the convex-concave alternative tooth-shaped cutting part, and the width of the indentation line end of the cutter is reduced, so that the resistance of pressing the cutter is reduced, and the processing is more convenient.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

As shown in fig. 1, the creasing line cutter of the plastic packaging box comprises a cutter body 1, wherein the cutter body 1 is a strip-shaped plate body, and one end of the cutter body 1 along the length direction is provided with a creasing line edge part 11;

the section of the indentation line edge part 11 is trapezoidal, the section of the indentation line edge part 11 can be isosceles trapezoid or non-isosceles trapezoid, preferably isosceles trapezoid, and the included angle between the extension lines of the two

oblique sides

111 and 112 of the indentation line edge part 11 is an acute angle;

the included angle between the extension lines of the two

bevel edges

111 and 112 of the cutting edge part 11 of the indentation line can be selected to be 30-60 degrees, and in the range of the angle, the resistance of the cutter in pressing the indentation line can be reduced, excessive stamping force does not need to be applied, and the processing is facilitated;

the included angle between the extension lines of the two

oblique sides

111, 112 of the indentation line edge 11 can be selected to be 55 degrees, and under the included angle, the indentation line pressed by the indentation line edge 11 has fine lines, good flexibility and easy folding.

The end surface of the indentation line edge part 11 along the length direction is provided with a plurality of bulges 12 which are distributed at intervals to form a tooth-shaped edge part which is distributed at intervals in a convex-concave manner, so that the fracture resistance of an indentation line pressed by the indentation line edge part 11 can be improved, the pressed indentation line is not easy to fracture, and the packaging box is ensured to have enough strength;

the distance between the protrusions 12 may be equal or unequal;

the shape of each protrusion 12 is a polygon, wherein the shape of each protrusion 12 can be a triangle, and the vertex tip of the triangle is in arc transition, so that the damage to the top end of the pressed indentation line is avoided, and the folding is facilitated.

The thickness of a plastic sheet for manufacturing the packing box is usually 0.17-1.2 mm, embossed lines with alternate convex and concave are processed on the plastic sheet, and grooves on a line pressing cutter cannot be too deep to cause perforation or reduce the strength of the embossed lines, and cannot be too shallow to influence the flexibility and convenience when the packing box is folded;

because the indentation line edge part 11 of the indentation line cutter is provided with the convex-concave alternative tooth-shaped edge part, the width of the indentation line end of the cutter is reduced, the resistance of the cutter in pressing is reduced, the processing is more convenient, and the plastic sheet has no deformation and no damage in the processing process.

When the crease line is made on the plastic sheet, the plastic sheet can not be damaged and can not be deformed, the stamping equipment for installing the crease line cutter is easy to adjust, the precision requirement on the stamping depth is relatively low, the error of the precision can not lead to the fracture of the whole crease line, even if some bumps are fractured due to the bumps and the concave points formed on the plastic sheet, other concave points are still connected with each other, the crease line is ensured to have outstanding fracture resistance, the manufacturing process of the packaging box is made, the rejection rate of products is greatly reduced, and the production cost is saved.

The packaging box is formed by folding each side piece of the box piece according to each crease line, each crease line is a crease line with alternate convex and concave formed by two triangles in a plurality of convex parts and a plurality of concave parts, each crease line extruded by the crease line cutter disclosed by the invention is a crease line with alternate convex and concave with 0.10-0.35 mm in width, the width of each crease line is preferably 0.25mm, and the width of each crease line is the distance between every two bulges 12 of the crease line cutter;

the depth of the concave part of the crease line can be determined and adjusted according to the thickness of the packaging box sheet, the depth of the concave part of the crease line is 0.1 mm-0.15 mm, the depth of the concave part of the crease line is the height of each bulge 12 of the crease line cutter, and the convex part of the crease line is proportional to the depth of the concave part and the density of the plastic sheet material to be pressed.

Because the width of the line pressing end of the line pressing tool is reduced, the width of the pressed line pressing end is also greatly reduced, the width of the line pressing end is only about one fourth of the width of the traditional line pressing end, the pressed line pressing end of the line pressing tool is not only fine and attractive, but also good in flexibility, not prone to fracture and easy to fold, the attractiveness of the packaging box is effectively improved, the end face of the cutting part of the line pressing tool is of a convex-concave alternate structure, the processing process is easy to control, the pressed line pressing end cannot fracture, and the packaging box is guaranteed to have enough strength.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing illustrates and describes the general principles, principal features, and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims.

Claims

1. The creasing line cutter for the plastic packaging box comprises a cutter body (1) and is characterized in that the cutter body (1) is a strip-shaped plate-shaped body, and one end of the cutter body (1) along the length direction is provided with a creasing line edge part (11);

the section of the indentation line edge part (11) is trapezoidal;

a plurality of bulges (12) distributed at intervals are arranged on the end surface of the indentation line edge part (11) along the length direction to form a tooth-shaped edge part distributed at intervals of convex and concave;

the shape of the bulge (12) is triangular, and the apex tip of the triangle is in arc transition.

2. Creasing tool for plastic packages according to claim 1, characterised in that the cross-sectional shape of the creasing edge portion (11) may be isosceles or non-isosceles, preferably isosceles.

3. Creasing tool for plastic packaging boxes according to claim 1, characterised in that the angle between the extension of the two oblique edges (111, 112) of the creasing edge portion (11) is acute.

4. Creasing blade for plastic packages according to claim 3, wherein the angle between the extension of the two oblique edges (111, 112) of the creasing blade (11) is 30-60 degrees.

5. Creasing blade for plastic packages according to claim 4, wherein the angle between the extension of the two oblique edges (111, 112) of the creasing blade (11) is 55 °.

6. Creasing tool for plastic packaging boxes according to claim 1, characterised in that the spacing between the protrusions (12) may or may not be equidistant.

7. Creasing tool for plastic packaging boxes according to claim 1, wherein the distance between the protrusions (12) is 0.10-0.35 mm.

8. Creasing cutter for plastic packages according to claim 7, wherein the spacing between the protrusions (12) is 0.25 mm.

9. Creasing tool for plastic packaging boxes according to claim 1, wherein the height of each protrusion (12) is between 0.1mm and 0.15 mm.