CN209774865U - Dysmorphism polaroid cutting die - Google Patents

Abstract

The utility model relates to a polaroid production technical field, specifically, relate to a dysmorphism polaroid cutting die, including base plate and the protruding cutting edge on the base plate, be provided with special-shaped position on the cutting edge, special-shaped position is arc transition structure, the whole rectangle structure that is of cutting edge, the minor face longitudinal separation of cutting edge sets up, the horizontal concatenation setting in long limit of cutting edge, the concatenation department of cutting edge is arc transition structure, the horizontal concatenation of cutting edge of this cutting die, material utilization has improved 3% ~ 5% than the conventional art, and the concatenation department of cutting edge passes through the fillet transition, make the defective products of production restore through grinding, the economic benefits has been improved in the synthesis.

Description

Dysmorphism polaroid cutting die

Technical Field

the utility model relates to a polaroid production technical field specifically, relates to a dysmorphism polaroid cutting die.

Background

Need cut massive polaroid according to the overall dimension who sets for in the secondary operation process of polaroid, it is the most common mode to carry out die-cut through the cutting die, but current cutting die is because the right angled shape is set to more in the corner of dimensional shape, often the burr appears in actual processing to the polaroid that needs carry out heterotypic die-cut, produces too much deckle edge, and the incision is coarse, and the product yield is low, therefore needs a neotype cutting die to solve above-mentioned problem.

Chinese patent CN207874420U discloses a cutting die, comprising: the base plate, the cutting edge of protruding on the base plate, the cutting edge interval sets up, is equipped with heterotypic position on the cutting edge, and heterotypic position department is arc transition structure, and the cutting edge is whole to be the rectangle structure. Through set up the cutting edge of mutual interval on the base plate to and set up arc transition structure in the heterotypic position department of cutting edge, make the incision of polaroid clean, pleasing to the eye, no burr at die-cut in-process for the cutting die, to a great extent has improved the yield of die-cut product.

In the cutting die disclosed by the patent, a gap of 5mm is arranged between every two cutters, the gap of 5mm is abandoned as a waste material in the production process, and if the gap of 5mm is cancelled, the material utilization rate can be improved by 3% -5%, so that the production cost is greatly reduced.

However, in the prior art, the splicing between the cutters is still a big problem, and if the gap between the cutters is simply eliminated, about 20% of defective products are generated, and the grinding cannot be repaired.

SUMMERY OF THE UTILITY MODEL

the utility model provides a not enough to prior art, the utility model provides a dysmorphism polaroid cutting die, the horizontal concatenation of cutting edge of this cutting die has improved 3% ~ 5% material utilization than traditional technique to the concatenation department of cutting edge passes through the fillet transition, makes the defective products of production can restore through grinding, has improved economic benefits in the synthesis.

The utility model discloses a dysmorphism polaroid cutting die, including base plate and the protruding cutting edge on the base plate, be provided with special-shaped position on the cutting edge, special-shaped position is arc transition structure, and the cutting edge is whole to be the rectangle structure, and the minor face longitudinal separation of cutting edge sets up, and the horizontal concatenation setting in long limit of cutting edge, the concatenation department of cutting edge are arc transition structure.

Preferably, one end of the cutting edge is in a round corner rectangular structure, and the other end of the cutting edge is in a special-shaped structure with arc transition.

Preferably, the special-shaped structure is an isosceles obtuse triangle structure with rounded corners.

Preferably, the special-shaped structure is a concave structure with round corners.

Preferably, the arc transition structure at the splicing part of the cutting edges is a round angle, and the circle center of the round angle is positioned at the outer side of the cutting edges and is positioned in the middle of the two cutting edges.

Preferably, the radius of the circular arc of the fillet is 0.5 mm.

Preferably the blades are longitudinally spaced apart by a distance of 5 mm.

Preferably, the middle part of the blade is provided with an air vent.

Preferably, both ends of the exhaust hole are provided with chamfers.

Preferably, the base plate is provided with a plurality of groups of blades and exhaust holes.

Has the advantages that:

The base plate once only cuts out a large amount of polaroids through its convex multiunit cutting edge, and the air between base plate, cutting edge and the polaroid is discharged through exhaust hole during the cutting, and fillet rectangle structure is used for cutting out the fillet rectangle structure that the cell-phone screen needs, and special-shaped structure is used for cutting out the existing whole face and keeps the sea or one-eye structure that the screen needs, and the fillet is used for eliminating the stress concentration of cutting edge concatenation department, prevents the irreparable defect from appearing.

1. The cutting edges of the cutting die are transversely spliced, so that the material utilization rate is improved by 3-5% compared with the traditional technology;

2. The cutting die passes through the splicing part of the fillet transition cutting edge, so that the produced defective products can be repaired by grinding.

drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective view of a cutting die resulting from the direct splicing of prior art cutting tools;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a bottom view of the embodiment;

FIG. 4 is a perspective view of the embodiment;

FIG. 5 is a partial enlarged view of the embodiment shown in FIG. 4 at B;

FIG. 6 is a partial enlarged view of the embodiment of FIG. 4 at C;

description of reference numerals:

y shape concatenation mouth 1, base plate 2, cutting edge 3, fillet rectangle structure 3a, special-shaped structure 3b, fillet 3c, exhaust hole 4, chamfer 4 a.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to the cutting die produced by the direct splicing of the prior art cutters shown in fig. 1-2, the Y-shaped splicing openings 1 are produced at two ends of the splicing position of the cutting edge, and the stress produced by the cutters to the polaroid is concentrated at the position, so that about 20% of defective products are produced, cracks can be produced at the side of the Y-shaped splicing openings 1 of the defective products, and the defective products can not be repaired even if being ground, thereby greatly improving the production cost.

Referring to fig. 3 to 6, shown a dysmorphism polaroid cutting die, including base plate 2 and protruding cutting edge 3 on base plate 2, be provided with special-shaped position on the cutting edge 3, special-shaped position is arc transition structure, and cutting edge 3 wholly is the rectangle structure, and the minor face longitudinal separation of cutting edge 3 sets up, and the horizontal concatenation setting in long limit of cutting edge 3, the concatenation department of cutting edge 3 are arc transition structure.

In the prior art, the long sides and the short sides of the blades 3 are arranged at intervals, so that the blades 3 are prevented from influencing each other when cutting the polaroid, the rejection rate of the cut polaroid is high, the interval between the edges of the blades 3 is generally 5mm, and about 3% -5% of waste materials can be generated after the polaroid is cut;

However, the two long-edge cutting edges of the two cutting edges 3 are spliced into a whole, so that a part of intervals can be eliminated, waste materials can be reduced, and the production cost can be reduced;

However, when the cutting edges 3 are directly spliced, waste products which cannot be repaired are difficult to avoid, so that the spliced positions of the cutting edges 3 are arranged to be arc-shaped transition structures, stress concentration at the positions is reduced, even defective products can be repaired through grinding, and the defective products are changed into qualified products;

the cutting die after the improvement saves the use of materials, improves the defective product rate, but the produced defective products can be changed into qualified products through grinding, and comprehensively improves the economic benefit.

One end of the cutting edge 3 is a round corner rectangular structure 3a, and the other end of the cutting edge 3 is a special-shaped structure 3b with arc transition.

The rounded rectangle structure 3a is in a common mobile phone screen shape, and the arc transition special-shaped structure 3b is used for placing parts such as a front camera, a photosensitive sensor and the like.

The special-shaped structure 3b is an isosceles obtuse triangle structure with a fillet.

the notch is suitable for the one-eye full-face screen of part of mobile phones.

the special-shaped structure 3b is a concave structure with round corners.

The notch is suitable for the sea-staying full-face screen of part of mobile phones.

The arc transition structure of the splicing part of the cutting edges 3 is a fillet 3c, and the circle center of the fillet 3c is positioned at the outer side of the cutting edges 3 and in the middle of the two cutting edges 3.

the splicing part of the cutting edge 3 forms a Y shape, and the V-shaped acute angle at the upper end of the Y shape is changed into a smooth U shape through the fillet 3c, so that the stress concentration at the position can be reduced.

The radius of the circular arc of the fillet 3c is 0.5 mm.

The fillet 3c undersize can not reduce concentrated stress, and the fillet 3c oversize can lead to the cutting edge 3 to produce unnecessary shearing force on the polaroid, and the circular arc of 0.5mm radius is comparatively suitable size.

The cutting edges 3 are longitudinally spaced apart by a distance of 5 mm.

Because the round corner rectangular structure 3a is different from the special-shaped structure 3b, so the splicing can not be carried out, and in order to avoid producing defective products, the longitudinal spacing distance of the blade 3 is set to be 5mm of empirical data.

the middle part of the cutting edge 3 is provided with an exhaust hole 4.

When the blade 3 cuts the polarizer, the air between the blade 3 and the polarizer can be rapidly exhausted through the exhaust hole 4.

Both ends of the exhaust hole 4 are provided with chamfers 4 a.

The chamfer 4a enables air flow to be smoothly discharged from the exhaust hole 4, prevents air flow mutation caused by a sharp mutation structure at the end part of the exhaust hole 4, reduces impact of the air flow on the cutting die and prolongs the service life of the cutting die.

the base plate 2 is provided with a plurality of groups of blades 3 and exhaust holes 4.

The working principle is as follows:

Base plate 2 once only cuts out a large amount of polaroids through its convex multiunit cutting edge 3, base plate 2 during the cutting, air between cutting edge 3 and the polaroid is through exhausting hole 4 discharges, fillet rectangle structure 3a is used for surely going out the fillet rectangle structure that the cell-phone screen needs, dysmorphism structure 3b is used for surely going out the existing full face screen needs stay the sea or the one-eyed structure, fillet 3c is used for eliminating the stress concentration of 3 concatenation departments of cutting edge, the defect that can not be repaired prevents to appear, the horizontal concatenation of cutting edge has also improved the defective products rate when having improved material utilization, and the concatenation department of cutting edge passes through the fillet transition, make the defective products of production restore through grinding, the economic benefits has been improved in the synthesis.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a dysmorphism polaroid cutting die which characterized in that: including base plate (2) and protruding cutting edge (3) on base plate (2), be provided with special-shaped position on cutting edge (3), special-shaped position is arc transition structure, and cutting edge (3) wholly is the rectangle structure, and the minor face longitudinal separation of cutting edge (3) sets up, and the horizontal concatenation setting in long limit of cutting edge (3), the concatenation department of cutting edge (3) are arc transition structure.

2. The profiled polarizer cutting die of claim 1, wherein: one end of the cutting edge (3) is a rounded rectangle structure (3a), and the other end of the cutting edge (3) is a special-shaped structure (3b) with arc transition.

3. The profiled polarizer cutting die of claim 2, wherein: the special-shaped structure (3b) is an isosceles obtuse triangle structure with rounded corners.

4. The profiled polarizer cutting die of claim 2, wherein: the special-shaped structure (3b) is a concave structure with round corners.

5. The profiled polarizer cutting die of claim 1, wherein: the arc transition structure at the splicing part of the cutting edges (3) is a fillet (3c), and the circle center of the fillet (3c) is positioned at the outer side of the cutting edges (3) and in the middle of the two cutting edges (3).

6. The profiled polarizer cutting die of claim 5, wherein: the radius of the circular arc of the fillet (3c) is 0.5 mm.

7. The profiled polarizer cutting die of claim 1, wherein: the longitudinal spacing of the cutting edges (3) is 5 mm.

8. The profiled polarizer cutting die of claim 1, wherein: the middle part of the cutting edge (3) is provided with an exhaust hole (4).

9. The profiled polarizer cutting die of claim 8, wherein: chamfers (4a) are arranged at two ends of the exhaust hole (4).

10. the profiled polarizer cutting die of claim 1, wherein: the base plate (2) is provided with a plurality of groups of blades (3) and exhaust holes (4).