CN107772654B

CN107772654B - Skin nail and processing technology thereof

Info

Publication number: CN107772654B
Application number: CN201711068571.9A
Authority: CN
Inventors: 许晓鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2024-02-02
Anticipated expiration: 2037-11-03
Also published as: CN107772654A

Abstract

The invention discloses a crown screw, which comprises a screw column, a radially enlarged screw head arranged at the end part of the screw column, a strip-shaped tooth arranged at the middle section of the screw column, a plurality of connecting pieces cut by a plurality of round notches arranged at the edge of the screw head along the circumferential direction, wherein the connecting pieces comprise an upper surface, a lower surface, a first end part and a second end part at the two ends of the upper surface and the lower surface, the first end part is bent towards the upper surface, the second end part is bent towards the lower surface, the plurality of curved connecting pieces are formed by cutting a plurality of round notches on the screw head, and the plurality of curved connecting pieces are distributed along the circumferential direction to form a spiral shape.

Description

Tianpi nail and processing technology thereof

Technical Field

The invention relates to a skin nail, in particular to a skin nail and a processing technology thereof.

Background

The high-heeled shoes are necessary equipment for female friends, and can be straight, elegant and more gasous when being worn, and can not be separated in the office or life; in order to prevent the abrasion of the heels of the high-heeled shoes and increase the comfort of the high-heeled shoes, the heels of the high-heeled shoes are generally provided with the top coats, so that the user can feel more comfortable when walking, and the noise can be reduced; the heel lift is typically attached to the heel by a heel lift peg, the skin nail on the market at present mainly comprises a nail head and a nail column, the nail head is a disc-shaped nail head, and the phenomenon of loosening easily occurs because the left and right nails of the heel are not stressed in the using process; because of the variety of heel constructions, the top hat nails are not necessarily vertical at each time when driven into the high-heeled shoes, if the situation of non-verticality occurs, the crown screw needs to be twisted by pliers, and the connection between the screw head and the crown is not firm, the space between the two can be loosened (namely, the top cover can rotate relative to the top cover nail), so that when the baby is worn, the top cover rotates, the user is uncomfortable to wear, and the foot of the user is seriously damaged.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a crown screw, which is formed into a spiral shape through a plurality of curved surface connecting pieces of a screw head, has a spiral screw head and crown to form an inclined plane biting force, and does not cause disconnection between the crown and the screw head during twisting.

The invention is realized by the following technical scheme: the utility model provides a crown block, includes the nail post, set up in the radial grow's of the tip of nail post the middle section position of nail post is equipped with the bar tooth the edge of nail post is equipped with a plurality of connection piece that cuts through a plurality of circle breach along the circumferencial direction, the connection piece includes upper surface and lower surface and first tip and the second tip at upper surface and lower surface both ends, first tip is crooked to the upper surface direction, the second tip is crooked to the lower surface direction.

Preferably, the two sides of the connecting sheet are concave parts, and a round notch is formed between two adjacent concave parts.

Preferably, the upper surface and the lower surface of the connecting sheet are both curved.

Preferably, one end of the nail column is integrally formed with the nail head, and the other end of the nail column is provided with a cone part.

The processing technology of the crown screw comprises the following steps:

A. cold heading: firstly, a screw thread is punched out of a smooth blank through a cold header, the smooth blank is a plane nail head, and the lower end of the plane nail head is an integrally formed nail column;

B. punching: then, putting a die provided with a plurality of ejector pins on the punch press for matching, putting the optical blank in the die, and equally dividing a plurality of round holes along the circumferential direction by the edge of the nail cap;

C. punching an opening: b, putting a die provided with a plurality of cuts on the punch to match, putting the optical blank with the round holes obtained in the step B in the die, aligning the punch of the punch to the position outside the round holes, and punching and breaking to form round notches and connecting sheets;

D. press deformation: and finally, putting a die provided with a plurality of propeller-shaped grooves and convex grooves on the punch press for matching, putting the round notch optical blank obtained in the step C on the die, and punching the connecting sheet into a twisting effect through the matching of the punch press and the die, namely, the connecting sheet is in a curved surface shape.

Compared with the prior art, the invention has the following advantages: the nail head is provided with the plurality of curved surface connecting pieces which are formed by cutting the plurality of round notches, the plurality of curved surface connecting pieces are distributed along the circumferential direction to form a spiral shape, when the nail head is used, the casting body and the nail head are integrally molded by injection, and when the crown screw is twisted, the nail head and the casting body mutually form inclined plane force, so that the crown screw is twisted more tightly, and the crown is not cut off, thereby causing loosening problem.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of the present invention.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; or may be directly connected, or may be indirectly connected through an intermediate medium, or may be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, the crown screw of the present embodiment includes a screw post 1, a radially enlarged screw head 2 disposed at an end of the screw post 1, one end of the screw post 1 is integrally formed with the screw head 2, the other end has a taper portion 3, the taper portion 3 may be replaced by a cylinder or a tip portion, the taper portion may be processed according to production requirements, a strip-shaped tooth 4 is disposed at a middle position of the screw post 1, four connecting pieces 6 cut by four circular notches 5 are disposed at an edge of the screw head 2 along a circumferential direction, the number of the circular notches 5 is equal to that of the connecting pieces 6, the connecting pieces 6 include a curved upper surface 7 and a curved lower surface 8, and a first end portion 9 and a second end portion 10 at both ends of the upper surface 7 and the lower surface 8, the first end portion 9 is curved toward the upper surface, the second end portion 10 is curved toward the lower surface, when the whole connecting sheet 6 is in a twisted state, a plurality of curved surface connecting sheets are distributed along the circumferential direction to form a spiral shape, so that the inclined plane force formed by the screw head and the heel lift can be ensured, the concave parts 11 are arranged on two sides of the connecting sheet 6, the round notch 5 is formed between two adjacent concave parts, and when the connecting sheet is used, injection molding is performed on the screw head, a casting body (heel lift) and the screw head are integrated, when the heel lift is twisted, the screw head and the casting body (heel lift) form the inclined plane force mutually, the heel lift is not perpendicular to the high-heeled shoe, the heel lift is clamped by pliers to twist, the inclined plane force formed by the screw head and the casting body mutually is more twisted and tighter when the screw head is twisted, the screw head is not cut off with the casting body (heel lift), so that the connection between the screw head and the casting body (heel lift) is improved to be more fastened, the use is safer.

The processing technology of the crown nail comprises the following steps:

A. cold heading: firstly, a screw thread is punched out of a smooth blank through a cold header, the smooth blank is a plane nail head, and the lower end of the plane nail head is an integrally formed nail column.

B. Punching: then, a die provided with a plurality of ejector pins is placed on the punch press to match, the optical blank is placed in the die, and a plurality of round holes are formed in the circumferential direction by the edge of the nail cap in an equal division mode.

C. Punching an opening: and the die provided with a plurality of cuts is placed on the punch to be matched, the blank with the round hole obtained in the step B is placed in the die, and the punch of the punch is aligned to the position deviating from the outer side of the round hole to punch the notch, so that a round notch and a connecting sheet are formed.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a day skin nail, includes the nail post, set up in the radial grow's of the tip of nail post pin fin the middle section position of nail post is equipped with bar tooth, its characterized in that: the edge of pin fin is equipped with a plurality of connection piece that cuts through a plurality of circle breach along the circumferencial direction, the connection piece includes upper surface and lower surface, and the first tip and the second tip at upper surface and lower surface both ends, first tip is crooked to the upper surface direction, the second tip is crooked to the lower surface direction to make the connection piece take the form of distortion, a plurality of curved surface connection pieces distribute along the circumferencial direction and constitute the spiral.

2. A crown molding as set forth in claim 1, wherein: the two sides of the connecting sheet are concave parts, and a round notch is formed between two adjacent concave parts.

3. A crown molding as set forth in claim 1, wherein: the upper surface and the lower surface of the connecting sheet are both curved.

4. A crown molding as set forth in claim 1, wherein: one end of the nail column and the nail head are integrally formed, and the other end of the nail column is provided with a cone part.

5. The processing technology of the crown block according to claim 1, comprising the following steps: