Novel dial plate capable of realizing micron-sized grains
By engraving fine textures on a steel plate mold and combining them with electroforming deposited copper, texture sheets are formed for the silver mirror base layer and the electroforming texture layer. This solves the technical problem of the difficulty in producing micron-level textures in existing technologies, improves the combination of product aesthetics and craftsmanship, and achieves high-resolution texture production for watch dials.
Patent Information
- Application Number
- CN202522282101.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-29
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-10-29
AI Technical Summary
Existing stamping and chemical etching processes are insufficient to produce extremely fine micron-level textures, resulting in less refined watch dial textures.
A new type of dial is created by combining a silver mirror base layer and an electroformed texture layer extracted from a plastic sheet. The texture sheet 20 is formed by combining the silver mirror base layer 21 and the electroformed texture layer 22. Fine textures are engraved on a steel plate mold and injection molded. Micron-level textures are formed by combining electroformed deposited copper.
It achieves the fine production of micron-level textures on the watch dial surface, enhancing the watch's aesthetics. The exquisite visual effect of the micron-level textures on the surface enhances the product's aesthetics and craftsmanship, highlighting the limitations of existing technology and realizing high-resolution texture production for the watch dial.
Smart Images
Figure CN223637900U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a watch dial, especially to a novel dial capable of realizing micron-level lines. BACKGROUND
[0002] As the face of a watch, a dial is far more than a simple time scale. It is a concentrated embodiment of function, aesthetics and technology. The patterns and textures on the dial directly determine the visual style and personality of the watch, and its manufacturing process is the core technical means to realize these designs. Currently, there are various manufacturing processes for patterns on the dial, among which stamping and chemical etching are two representative technologies.
[0003] Stamping process is an efficient and economical physical forming method. Its process can be compared to traditional seal stamping: first, a precision mold pre-engraved with the target pattern needs to be made. Then, under the action of great pressure, this hard mold is used to stamp the relatively soft metal blank, most commonly a yellow brass substrate that is easy to shape. The strong pressure causes the metal blank to deform plastically, and the concave-convex texture on the surface of the mold is accurately "transferred" to the surface of the dial, forming basic textures such as classic sun ray patterns and wheat patterns. The biggest advantage of stamping process is its excellent production efficiency and cost control ability. Once the mold is developed, mass production with high consistency can be achieved, which makes it the preferred process for large-scale production of high-end watch brands. However, the limitations of this technology are also obvious. Due to the physical constraints of the ductility limit of the metal material and the manufacturing precision of the mold, when facing extremely fine structures that require extremely high resolution, sharp corners or nearly vertical side walls, the patterns produced by stamping process have defects such as blurred edges or uneven depth, and cannot produce extremely fine lines and other microstructures.
[0004] For the chemical etching process, the principle is completely different. It belongs to a "subtractive" chemical processing method. Instead of deforming the metal by physical pressure, it forms patterns by selective corrosion. The process is roughly as follows: a layer of acid-resistant photoresist is coated on the clean metal dial surface, the designed pattern area is exposed through ultraviolet exposure and development, and then the dial is immersed in a specific chemical etching solution (such as ferric chloride solution). The etching solution will dissolve and corrode the exposed metal area, while the area protected by the photoresist remains unchanged, forming a recessed pattern. For the chemical etching process, it forms recesses by corroding the metal, and the etching depth is shallow and the uniformity control is difficult, so it also cannot produce extremely fine lines and other microstructures. In view of this, we have developed a novel dial capable of realizing micron-level lines, which can produce extremely fine lines and other microstructures. SUMMARY
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a new type of dial that can achieve micron-level texture.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel dial capable of achieving micron-level textures, comprising a base and a textured sheet attached to the upper surface of the base, wherein an adhesive layer is between the base and the textured sheet, and the textured sheet comprises a silver mirror base layer and an electroformed textured layer, wherein the electroformed textured layer is disposed on the upper surface of the silver mirror base layer.
[0007] To elaborate further, the thickness of the silver mirror substrate ranges from 0.8 to 1.2 μm.
[0008] To elaborate further, the thickness of the electroformed textured layer ranges from 80 to 100 μm.
[0009] To elaborate further, the material of the electroformed textured layer is copper.
[0010] To elaborate further, the thickness of the adhesive layer ranges from 30 to 50 μm.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a new type of dial that can achieve micron-level textures. The dial surface can display micron-level fine textures that cannot be generated by stamping or chemical etching processes, making it more delicate and exquisite. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the present invention.
[0013] Figure 2 This is a cross-sectional view of the structure of this utility model.
[0014] Figure 3 This is a diagram of a plastic sheet with fine texture.
[0015] Figure 4 This is a diagram showing the texture sheet being removed from the plastic sheet.
[0016] Figure 5 This is a schematic diagram of a texture patch being attached to the chassis.
[0017] The reference numerals are as follows: 10, chassis; 20, texture sheet; 21, silver mirror base layer; 22, electroformed texture layer; 30, glue layer; 40, plastic sheet; 41, fine texture. Detailed Implementation
[0018] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0019] Combined with appendix Figure 1 AppendixFigure 2 and attached Figure 5 As shown in the accompanying drawings, a new type of watch dial capable of realizing micron-level texture includes a bottom plate 10 and a texture sheet 20 attached to the upper surface of the bottom plate 10, and a glue layer 30 between the bottom plate 10 and the texture sheet 20, the thickness of the glue layer 30 being in the range of 30-50 μm. The texture sheet 20 includes a silver mirror base layer 21 and an electroformed texture layer 22, and the electroformed texture layer 22 is arranged on the upper surface of the silver mirror base layer 21.
[0020] The thickness of the silver mirror base layer 21 is in the range of 0.8-1.2 μm. The thickness of the electroformed texture layer 22 is in the range of 80-100 μm. The material of the electroformed texture layer 22 is copper.
[0021] The specific manufacturing process is as follows:
[0022] S1. Fine texture is manually carved on a steel plate mold, and then a plurality of plastic sheets 40 are injection molded through the steel plate mold, as shown in the accompanying drawings. The material of the plastic sheet 40 is ABS, and one side of the plastic sheet 40 contains fine texture 41. Figure 3
[0023] S2. The side of the plastic sheet 40 containing the fine texture 41 is simultaneously sprayed with hydrazine sulfate and silver ammine solution, so as to form the silver mirror base layer 21.
[0024] S3. Copper is electroformed and deposited on the silver mirror base layer 21 of the plastic sheet 40, so that the electroformed texture layer 22 is generated on the upper surface of the silver mirror base layer 21, and the silver mirror base layer 21 and the electroformed texture layer 22 combine to form the texture sheet 20.
[0025] S4. As shown in the accompanying drawings, the texture sheet 20 is peeled off from the plastic sheet 40. The thickness of the texture sheet 20 combined by the silver mirror base layer 21 and the electroformed texture layer 22 is moderate, which can avoid breakage when the texture sheet 20 is peeled off from the plastic sheet 40, and has certain ductility, which is convenient for subsequent other processing. Figure 4
[0026] S5. Glue is applied on the upper surface of the bottom plate 10, so as to form the glue layer 30 on the bottom plate 10.
[0027] S6. As shown in the accompanying drawings, the texture sheet 20 is attached to the upper surface of the bottom plate 10, and finally the edges of the bottom plate 10 are polished to eliminate the traces of misalignment between the texture sheet 20 and the bottom plate 10. Figure 5
[0028] The manufacturing process can repeatedly use the plastic sheet 40 to mass-produce the watch dial with micron-level lines, and can correspond to different shapes of fine lines by injection molding different plastic sheets, which not only has wide versatility, but also can realize mass production by putting multiple plastic sheets 40 made into silver mirror base layers 21 into an electroforming tank for electroforming deposition of copper, thereby greatly reducing the production cost.
[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
Claims
1. A new type of dial that enables micron-level texturing, characterized by: The application relates to a texture sheet (20) attached to the upper surface of a base plate (10), wherein a glue layer (30) is arranged between the base plate (10) and the texture sheet (20), and the texture sheet (20) comprises a silver mirror base layer (21) and an electroformed texture layer (22), wherein the electroformed texture layer (22) is arranged on the upper surface of the silver mirror base layer (21).
2. A new type of watch dial capable of realizing micron-level lines according to claim 1, characterized in that: The thickness of the silver mirror base layer (21) ranges from 0.8 to 1.2 microns.
3. The novel watch dial capable of realizing micron-level lines according to claim 1, characterized in that: The thickness of the electroformed texture layer (22) ranges from 80 to 100 microns.
4. A novel dial capable of achieving micro-level texture according to claim 3, characterized in that: The material of the electroformed texture layer (22) is copper.
5. The novel watch dial capable of realizing micron-level lines according to claim 1, characterized in that: The thickness of the glue layer (30) ranges from 30 to 50 microns.