CN100530472C - Ultrathin plastic key module and manufacturing method thereof - Google Patents

Abstract

The invention discloses a method for manufacturing an ultrathin plastic key module, which comprises the following steps: firstly, providing a thin plate; then, positioning the thin plate by an optical positioning module; then, machining the thin plate into a predetermined shape by Computer Numerical Control (CNC) equipment; finally, an elastic body is arranged at the lower end of the thin plate with the preset shape. Therefore, the ultra-thin key body is manufactured by positioning the optical positioning module and processing Computer Numerical Control (CNC) equipment. Not only the whole thickness of the key module is reduced, but also the object deformation, insufficient material, punching burrs and other abnormal phenomena can not be caused due to the limitations of machine and mold design in the manufacturing process of the ultrathin key body.

Description

Ultra-thin plastic key module and manufacturing method thereof

technical field

The present invention relates to an ultra-thin plastic button module and a manufacturing method thereof, especially to an ultra-thin plastic button module through the positioning of an optical positioning module and the processing of computer numerical control (Computer Numerical Control, CNC) equipment. Thin plastic key module and manufacturing method thereof.

Background technique

Please refer to FIG. 1 , which is a flow chart of the manufacturing method of the existing button module. It can be known from the flow chart that the manufacturing method of the existing button module includes: firstly, setting up a predetermined plastic mold (S100); then, using the plastic mold, forming a thin plate ( S102), wherein the thickness is generally greater than 1 mm; then, provide a fixture for positioning the thin plate (S104); process the appearance of the thin plate (S106), such as setting graphics, symbols on the front or back of the thin plate; then Next, punch the thin plate to form a plurality of key bodies (S108); finally, attach or arrange a plurality of elastic bodies on the lower ends of the corresponding key bodies (S110), so as to complete the production of the key module.

Existing molding methods of plastic button bodies are all carried out by injection molding. However, when plastic injection molding is used to make objects with a thickness of less than 1 mm, due to limitations in machine and mold design, etc., abnormalities such as object deformation, insufficient material, and punching burrs often occur. .

In addition, there are following disadvantages in existing production:

1. In injection molding manufacturing, it is necessary to design different plastic molds for thin plates of different thicknesses;

2. When positioning thin plates, another positioning fixture must be used for appearance processing; and

3. When stamping the thin plate at last, another stamping machine and stamping fixture must be used.

Therefore, it can be seen from the above that the above-mentioned existing key module and its usage method obviously have inconvenience and defects in actual use, and can be improved.

Contents of the invention

The technical problem to be solved by the present invention is to provide an ultra-thin plastic key module and a manufacturing method thereof, which can produce an ultra-thin key body through the positioning of the optical positioning module and the processing of computer numerical control (CNC) equipment . Not only can the overall thickness of the button module be reduced, but also during the production process of the ultra-thin button body, there will be no abnormalities such as deformation of the object, insufficient material, and punching burrs due to restrictions on machine and mold design.

In order to solve the above technical problems, according to one solution of the present invention, a method for manufacturing an ultra-thin plastic button module is provided, the steps of which include: firstly, providing a thin plate; then, positioning the thin plate by means of an optical positioning module; Then, by means of a computer numerical control (CNC) equipment, the thin plate is processed into a predetermined shape; finally, an elastic body is arranged at the lower end of the thin plate with the predetermined shape.

In order to solve the above technical problems, according to one solution of the present invention, an ultra-thin plastic key module is provided, which includes: a thin key body and an elastic body. The thin key body is shaped by computer numerical control (CNC) equipment, and the thin key body has a thickness less than or equal to 1 millimeter; and the elastic body is arranged at the lower end of the thin key body.

In order to better illustrate the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, however, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present invention.

Description of drawings

Fig. 1 is the flow chart of the manufacturing method of existing button module;

Fig. 2 is the flowchart of the first embodiment of the manufacturing method of the ultra-thin plastic key module of the present invention;

Fig. 3 is the flowchart of the second embodiment of the manufacturing method of the ultra-thin plastic button module of the present invention;

Fig. 4 is the flowchart of the third embodiment of the manufacturing method of the ultra-thin plastic key module of the present invention; and

Fig. 5 is a schematic diagram of the ultra-thin plastic key module of the present invention.

Among them, reference signs:

10-thin button body

20-Elastomer

D-less than 1 mm

Detailed ways

Please refer to FIG. 2 , which is a flow chart of the first embodiment of the manufacturing method of the ultra-thin plastic key module of the present invention. It can be seen from the flowchart that the present invention provides a method for manufacturing an ultra-thin plastic key module, the steps of which include: first, providing a thin plate (S200), wherein the thin plate is made of plastic material, and the thickness of the thin plate is less than or equal to 1 mm; Then, position the thin plate by means of an optical positioning module (S202), wherein the optical positioning module has a photosensitive coupling device (CCD) or complementary metal oxide semiconductor (CMOS) for positioning; then, by means of a computer numerical control (Computer Numerical Control, CNC) equipment to process the thin plate into a predetermined shape (S204).

Next, set a plurality of graphics or symbols on the back of the thin plate with a predetermined shape (S206), the setting method can be printing (coating) or coating (printing); finally, set an elastic body on the The lower end of the thin plate of a predetermined shape (S208). If the thin plate is of a predetermined single-group key body size, stamping is not required; if the thin plate is a multi-group key body, stamping is performed by the computer numerical control equipment (no need to replace processing equipment and positioning molds).

Please refer to FIG. 3 , which is a flow chart of the second embodiment of the manufacturing method of the ultra-thin plastic key module of the present invention. It can be seen from the flowchart that the steps S300 to S304 and S308 of the second embodiment are the same as the steps S200 to S204 and S208 of the first embodiment. The biggest difference is that after the step S304, it includes: using a laser engraving device to laser engrave the front side of the thin plate with a predetermined shape, so that the front side of the thin plate produces the required graphics or symbols (S306).

Please refer to FIG. 4 , which is a flow chart of the third embodiment of the manufacturing method of the ultra-thin plastic key module of the present invention. It can be known from the flowchart that steps S400 to S404 of the third embodiment are the same as steps S200 to S204 of the first embodiment. The biggest difference is that after step S404, it includes: using a laser engraving device to laser engrave the front side of the thin plate with a predetermined shape, so that the front side of the thin plate produces the required graphics or symbols (S406); then, paint Cloth a protective hard film on the front of the thin plate after laser engraving (S408); finally arrange an elastic body on the lower end of the thin plate with a predetermined shape (S410).

In addition, the control of the laser engraving depth of the thin plate by the laser engraving equipment is determined by adjusting the laser output power of the laser engraving equipment. And the laser engraving equipment controls the texture on the front of the thin plate, by adjusting the laser output power and path of the laser engraving equipment, to change the engraving line width, line distance and line type, and present the desired style and texture.

Please refer to FIG. 5 , which is a schematic diagram of the ultra-thin plastic button module of the present invention. It can be seen from the figure that the present invention provides an ultra-thin plastic key module, which includes: a thin key body 10 and an elastic body 20 disposed at the lower end of the thin key body 10 . Wherein the thin key body 10 is formed by computer numerical control (CNC) equipment, and the thin key body 10 has a thickness less than or equal to 1 mm (D).

In addition, the thin button body 10 is made of plastic material. And the back of the thin key body 10 is provided with a plurality of pictures or symbols by printing or coating; the front of the thin key body 10 is provided with a plurality of pictures or symbols by laser engraving.

To sum up, the present invention manufactures an ultra-thin key body through the positioning of the optical positioning module and the processing of the computer numerical control (CNC) equipment. Not only can the overall thickness of the button module be reduced, but also during the production process of the ultra-thin button body, there will be no abnormalities such as deformation of the object, insufficient material, and punching burrs due to restrictions on machine and mold design.

The above-mentioned content is only a preferred feasible embodiment of the present invention, and is not used to limit the scope of patent protection of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are all included in the same reason. within the protection scope of the present invention.

Claims (14)

1. A method for making an ultra-thin plastic button module, comprising the steps of: Provide a sheet with a thickness of 1 mm or less; positioning the sheet by means of an optical positioning module; machining said sheet into a predetermined shape by means of a computer numerical control device; and An elastic body is arranged at the lower end of the thin plate with a predetermined shape. 2. The manufacturing method of the ultra-thin plastic key module according to claim 1, wherein the optical positioning module has a photosensitive coupling element for positioning. 3. The manufacturing method of the ultra-thin plastic key module according to claim 1, wherein the optical positioning module has a complementary metal oxide semiconductor for positioning. 4. The manufacturing method of the ultra-thin plastic key module according to claim 1, characterized in that, after the processing step, further comprising: arranging a plurality of pictures or symbols on the back of the thin plate having a predetermined shape. 5. The manufacturing method of the ultra-thin plastic key module according to claim 4, wherein the graphic or symbol is arranged on the back of the thin plate with a predetermined shape by printing or coating. 6. The manufacturing method of the ultra-thin plastic key module according to claim 1, characterized in that, after the processing step, further comprising: using a laser engraving device to laser engrave the front side of the thin plate having a predetermined shape , so that the front of the thin plate produces the required graphics or symbols. 7. The manufacturing method of the ultra-thin plastic key module according to claim 1, characterized in that, after the processing step, further comprising: Using a laser engraving device to laser engrave the front side of the thin plate with a predetermined shape, so that the front side of the thin plate produces the required graphics or symbols; and A hard film for protection is coated on the front side of the thin plate after laser engraving. 8. The manufacturing method of the ultra-thin plastic key module according to claim 1, wherein the thin plate is made of plastic material. 9. The manufacturing method of the ultra-thin plastic key module according to claim 1, characterized in that the ultra-thin plastic key module obtained according to the method comprises: A sheet formed by computer numerical control equipment, said sheet having a thickness of 1 mm or less; and An elastic body is arranged at the lower end of the thin plate. 10. The manufacturing method of the ultra-thin plastic key module according to claim 9, wherein the thin plate is made of plastic material. 11. The manufacturing method of the ultra-thin plastic key module according to claim 9, wherein a plurality of pictures or symbols are arranged on the back of the thin plate. 12. The manufacturing method of the ultra-thin plastic key module according to claim 11, wherein the graphic or symbol is arranged on the back of the thin plate by printing or coating. 13. The manufacturing method of the ultra-thin plastic key module according to claim 9, wherein a plurality of pictures or symbols are arranged on the front of the thin plate. 14. The manufacturing method of the ultra-thin plastic key module according to claim 13, wherein the graphic or symbol is arranged on the front of the thin plate by laser engraving.

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