阅读说明：本技术 一种3d彩色纽扣的制作方法 (Manufacturing method of 3D colored button ) 是由 叶志杰 李华珍 于 2019-03-15 设计创作，主要内容包括：本发明公开了一种3D彩色纽扣的制作方法,包括在透明塑料片材的一面印刷彩色图案,通过吸塑工艺将透明塑料片材吸塑成型为仿形体,将仿形体放入下模体中,合紧上模体,向上、下模体的型腔内注入注塑胶料,注塑胶料在注射压力作用下向下打在仿形体的凹入的一面的底端,而后由下而上贴着模具型腔边壁注满腔体,从而让仿形体顺序贴紧胶料表面并实现自行卷边。本发明通过工艺改进,使制作出的3D彩色纽扣,外观完美无锐角,使用寿命长,耐划伤及洗涤,并具有生产工艺简单可靠,成本低廉的特点,具有良好的市场前景。(The invention discloses a method for manufacturing a 3D color button, which comprises the steps of printing a color pattern on one surface of a transparent plastic sheet, carrying out plastic suction molding on the transparent plastic sheet into a profile body through a plastic suction process, putting the profile body into a lower die body, tightly closing an upper die body, injecting plastic injection materials into cavities of the upper die body and the lower die body, downwards striking the plastic injection materials at the bottom end of the concave surface of the profile body under the action of injection pressure, and then fully injecting a cavity from bottom to top along the side wall of the cavity of the die, so that the profile body sequentially clings to the surface of a sizing material and realizes self-curling. Through process improvement, the manufactured 3D color button has the advantages of perfect appearance, no acute angle, long service life, scratch resistance and washing resistance, simple and reliable production process and low cost, and has good market prospect.)

1. A manufacturing method of a 3D color button is characterized by comprising the following steps: the method comprises the following steps:

printing a preset colorful pattern on one surface of a transparent plastic sheet;

forming the transparent plastic sheet into a simulated body which meets the preset shape requirement and is provided with a circular arc cavity by plastic suction through a plastic suction process, and enabling the colorful pattern to be positioned in the convex surface;

placing the convex surface of the profile modeling body downwards into a preset lower die body, wherein the lower die body is provided with a circular arc-shaped cavity with an upward opening, and the convex surface of the profile modeling body is in clearance fit with the cavity wall of the cavity of the lower die body; the upper edge of the profile body is higher than the cavity of the lower die body by a preset height dimension, and the surface area of the profile body is larger than that of the cavity of the lower die body;

the upper die body is matched on the lower die body, the upper die body is provided with a cavity with a downward opening, the peripheral dimension of the cavity of the upper die body is matched with that of the cavity of the lower die body, the side wall of the cavity of the upper die body is of an R-angle structure, and the depth of the cavity of the upper die body is smaller than the height dimension of the upper edge of the profile-imitating body higher than that of the cavity of the lower die body, so that after the profile-imitating body is matched with the upper die body and the lower die body, a bent edge is formed on the upper edge;

the injection plastic material is injected into the cavities of the upper die body and the lower die body from the middle of the upper die body, the injection plastic material is downwards hit at the bottom end of the concave side of the profile modeling body under the action of injection pressure, and then the cavity is fully injected by adhering to the side wall of the die cavity from bottom to top, so that the profile modeling body is sequentially adhered to the surface of the sizing material and the self-curling is realized.

2. The method for manufacturing the 3D colorful button according to claim 1, wherein the method comprises the following steps: further, the upper edge of the profile body is cut, so that the upper edge of the profile body is higher than a cavity of the lower die body by a preset height dimension.

3. The method for manufacturing the 3D colorful button according to claim 1, wherein the method comprises the following steps: furthermore, in the clearance fit between the convex surface of the profile modeling body and the cavity wall of the cavity of the lower die body, the bottommost end of the convex surface of the profile modeling body is in contact with the cavity wall of the cavity of the lower die body.

Technical Field

The invention relates to the technical field of button manufacturing, in particular to a manufacturing method of a 3D color button.

Background

The buttons are common clothing accessories, and the 3D colorful buttons which are exquisite and low in cost cannot be manufactured by the existing technical method and technology in the market at present due to various reasons such as appearance flaws, high cost, high manufacturing difficulty and the like, so that the buttons, particularly children buttons, are single in color, dull in appearance and lack of novelty.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a manufacturing method of a 3D color button, which is characterized by perfect appearance, no acute angle, long service life, scratch resistance and washing resistance, simple and reliable production process, low cost and good market prospect.

The technical scheme adopted by the invention for solving the technical problems is as follows: a manufacturing method of a 3D color button comprises the following steps:

printing a preset colorful pattern on one surface of a transparent plastic sheet;

forming the transparent plastic sheet into a simulated body which meets the preset shape requirement and is provided with a circular arc cavity by plastic suction through a plastic suction process, and enabling the colorful pattern to be positioned in the convex surface;

placing the convex surface of the profile modeling body downwards into a preset lower die body, wherein the lower die body is provided with a circular arc-shaped cavity with an upward opening, and the convex surface of the profile modeling body is in clearance fit with the cavity wall of the cavity of the lower die body; the upper edge of the profile body is higher than the cavity of the lower die body by a preset height dimension, and the surface area of the profile body is larger than that of the cavity of the lower die body;

the upper die body is matched on the lower die body, the upper die body is provided with a cavity with a downward opening, the peripheral dimension of the cavity of the upper die body is matched with that of the cavity of the lower die body, the side wall of the cavity of the upper die body is of an R-angle structure, and the depth of the cavity of the upper die body is smaller than the height dimension of the upper edge of the profile-imitating body higher than that of the cavity of the lower die body, so that after the profile-imitating body is matched with the upper die body and the lower die body, a bent edge is formed on the upper edge;

the injection plastic material is injected into the cavities of the upper die body and the lower die body from the middle of the upper die body, the injection plastic material is downwards hit at the bottom end of the concave side of the profile modeling body under the action of injection pressure, and then the cavity is fully injected by adhering to the side wall of the die cavity from bottom to top, so that the profile modeling body is sequentially adhered to the surface of the sizing material and the self-curling is realized.

Further, the upper edge of the profile body is cut, so that the upper edge of the profile body is higher than a cavity of the lower die body by a preset height dimension.

Furthermore, in the clearance fit between the convex surface of the profile modeling body and the cavity wall of the cavity of the lower die body, the bottommost end of the convex surface of the profile modeling body is in contact with the cavity wall of the cavity of the lower die body.

Compared with the prior art, the invention has the beneficial effects that:

the invention adopts the technical scheme that the convex surface of the profile-shaped body is in clearance fit with the cavity wall of the cavity of the lower die body, the upper edge of the profile-shaped body is higher than the cavity of the lower die body by a preset height dimension, and the surface area of the profile-shaped body is larger than that of the cavity of the lower die body; the upper edge of the profile modeling body is higher than the cavity of the lower die body, and when the upper die body is closed, the depth of the cavity of the upper die body is smaller than the height of the upper edge of the profile modeling body higher than the cavity of the lower die body, so that a bent edge is formed on the upper edge of the profile modeling body; meanwhile, the side wall of the cavity of the upper die body is designed to be of an R-angle structure, and plastic injection materials are injected into the cavities of the upper die body and the lower die body through the middle of the upper die body. According to the structure, the gap between the profile body and the cavity wall of the cavity of the lower die body is utilized, the profile body can be tensioned under the action of injection pressure during injection molding of the plastic material, and after injection molding is finished, the profile body shrinks and is tightly combined with a button blank formed by the injection molding material; the upper edge of the profile body is higher than the cavity of the lower die body, and the side wall of the cavity of the upper die body is designed into an R-angle structure, so that a back-off edge can be formed at the edge of the button blank body, the button blank body cannot be separated from the profile body, and the edge cutting is not needed; the injection molding materials are injected into the cavities of the upper die body and the lower die body from the middle of the upper die body, so that the injection pressure can be uniformly diffused along the middle to the periphery, and the combination uniformity of the copying body and the button blank is ensured; the manufactured 3D color button has the advantages of perfect appearance, no acute angle, long service life, scratch resistance and washing resistance, simple and reliable production process and low cost, is a breakthrough of the 3D color button process, and has good market prospect.

The invention is further explained in detail with the accompanying drawings and the embodiments; however, the manufacturing method of the 3D color button of the present invention is not limited to the embodiment.

Drawings

FIG. 1 is a cross-sectional structural view (not hatched) of a phantom according to an embodiment of the invention;

FIG. 2 is a schematic representation of a phantom according to an embodiment of the invention fitted in an upper and lower mold body (phantom lines not drawn);

FIG. 3 is a schematic view of injecting plastic injection material into the cavities of the upper and lower mold bodies according to the embodiment of the present invention (the phantom is not shown with hatching);

FIG. 4 is a cross-sectional structural view of a demolded button of an embodiment of the invention (phantom lines not drawn);

fig. 5 is a schematic external view of a molded button according to an embodiment of the present invention.

Detailed Description