Injection molding polishing protection clamp for ceramic watch cover

Abstract

The utility model discloses an injection molding polishing protection fixture for a ceramic watch cover, which comprises a polishing concave surface fixture bottom plate and a plurality of polishing mesons, a plurality of watch cover accommodating units are arranged on the polishing concave surface fixture bottom plate, and the lower part of the ceramic watch cover is placed in the watch cover accommodating units. The polishing meson comprises an integrally-formed ceramic watch cover containing part and a non-polishing area protection position formed above the ceramic watch cover containing part, the upper portion of the ceramic watch cover is contained in the ceramic watch cover containing part, and the non-polishing area protection position covers a non-polishing area on the upper surface of the ceramic watch cover. Through the design, the non-polished area of the ceramic watch cover is covered by the protection position, so that the ceramic watch cover is not damaged in the injection molding and polishing process; by replacing the polishing mesons of different sizes, it can be ensured that the protection position covers the non-polished areas of the ceramic watch covers of different sizes; therefore, the production efficiency is greatly improved, and the error rate and material waste in the production process can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of ceramic watch cover processing technology, and in particular to an injection molding and polishing protective fixture for ceramic watch covers. Background Technology

[0002] Injection molding finishing refers to the surface treatment of injection-molded products to remove surface defects, improve appearance, and enhance surface quality. During the injection molding finishing process, it is necessary to protect the product surface from scratches, pressure, or other damage.

[0003] Current technology achieves the injection molding and polishing of ceramic watch covers using a primitive, traditional engraving process. First, fiberglass sheets (primarily FR-4 fiberglass sheets, commonly used in polishing processes for glass, lenses, silicon wafers, hard drives, etc., also known as polishing jigs) are purchased. Then, the CNC machining department engraves the fiberglass sheet material into a concave fixture with a central cavity (111 cavities). The ceramic watch cover is then placed into the cavity and polished using a vertical polishing machine in the factory's precision grinding workshop. However, during the engraving process of the cavity / concave fixture, a large amount of fiberglass sheet scrap cannot be reused and must be scrapped, increasing operating costs. The engraving process is time-consuming and costly. Furthermore, during the engraving process, fiberglass powder generated during cutting floats inside the engraving machine, and these tiny particles affect the precision of the machine's lead screw. When the fiberboard concave fixture is used in the precision grinding workshop, the ceramic cover products have high hardness, while the fiberglass board has basically the same hardness. During the grinding process, the brush has a short service life and can only produce 20,000 pieces.

[0004] Therefore, a new solution is needed. Utility Model Content

[0005] The main purpose of this utility model is to provide an injection molding and polishing protective clamp for ceramic watch covers.

[0006] To achieve the above objectives, this utility model provides an injection molding polishing and protective fixture for ceramic watch covers, comprising a polishing concave fixture base plate and multiple polishing mediators. The polishing concave fixture base plate has multiple watch cover receiving units. The lower part of the ceramic watch cover is placed in the watch cover receiving unit. Each polishing mediator includes an integrally formed ceramic watch cover receiving part and a non-polished area protection position formed above the ceramic watch cover receiving part. The upper part of the ceramic watch cover is accommodated in the ceramic watch cover receiving part, and the non-polished area protection position covers the non-polished area of ​​the upper surface of the ceramic watch cover.

[0007] In the injection molding and polishing protective fixture for ceramic watch covers provided by this utility model, the watch cover receiving unit is a circular groove formed on the upper surface of the polishing concave fixture base plate. The depth of the circular groove is less than the height of the polishing concave fixture base plate, the height of the ceramic watch cover is greater than the depth of the circular groove, the diameter of the ceramic watch cover is less than the diameter of the circular groove, and the lower surface of the ceramic watch cover is placed on the upper surface of the circular groove.

[0008] In the injection molding and polishing protective fixture for ceramic watch covers provided by this utility model, the ceramic watch cover receiving part is a first hollow cylinder. The inner diameter of the first hollow cylinder is the same as the diameter of the ceramic watch cover, the outer diameter of the first hollow cylinder is larger than the diameter of the circular groove, and the height of the ceramic watch cover is equal to the sum of the depth of the circular groove and the height of the first hollow cylinder.

[0009] In the injection molding and polishing protective fixture for ceramic watch covers provided by this utility model, the non-polished area protection position is a second hollow cylinder. The outer diameter of the second hollow cylinder is equal to the outer diameter of the first hollow cylinder, and the inner diameter of the second hollow cylinder is smaller than the inner diameter of the first hollow cylinder.

[0010] In the injection-molded polishing protective fixture for ceramic watch covers provided by this utility model, the first hollow cylinder and the second hollow cylinder are integrally injection molded from polyamide plastic.

[0011] In the injection molding and polishing protective fixture for ceramic watch covers provided by this utility model, a plurality of positioning holes are also provided on the base plate of the polishing concave fixture. The positioning holes are formed on the lower surface of the circular groove and are concentrically arranged with the circular groove. The depth of the positioning holes and the depth of the circular groove are equal to the height of the base plate of the polishing concave fixture.

[0012] In the injection-molded polishing and protective fixture for ceramic watch covers provided by this utility model, the polishing concave fixture base plate, the plurality of watch cover receiving units, and the plurality of positioning holes are integrally injection molded from polyamide plastic.

[0013] The injection molding and polishing protective fixture for ceramic watch covers provided by this utility model has the following beneficial effects: In the injection molding and polishing protective fixture for ceramic watch covers provided by this utility model, the ceramic watch cover is placed in the watch cover receiving unit on the base plate of the polishing concave fixture, ensuring its stable position; then, the polishing medial is covered on the upper part of the ceramic watch cover, especially its non-polished area; through this design, the non-polished area of ​​the ceramic watch cover is protected and will not be damaged during the injection molding and polishing process; by changing the polishing medial of different sizes, it can be ensured that the protective area covers the non-polished area of ​​the ceramic watch cover, regardless of the specific size of the ceramic watch cover; thus, production efficiency is greatly improved, and the error rate and material waste in the production process can be effectively reduced; by adopting this injection molding and polishing protective fixture, the production and processing accuracy of ceramic watch covers is effectively guaranteed; whether in mass production or in the processing of ceramic watch covers of different specifications, precise protection can be achieved by simply changing the polishing medial of different sizes, thereby reducing quality problems caused by inappropriate protection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 The figure shown is an exploded view of an injection molding and polishing protective fixture for ceramic watch covers according to an embodiment of the present invention.

[0016] Figure 2 The figure shown is a cross-sectional view of the injection molding and polishing protective fixture for ceramic watch covers provided in an embodiment of the present invention during use.

[0017] Figure 3 As shown Figure 2 An enlarged view of part B shown. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate typical embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0020] Figure 1 The figure shown is an exploded view of an injection molding and polishing protective fixture for ceramic watch covers according to an embodiment of the present invention. Figure 2 The image shown is a cross-sectional view of the injection molding and polishing protective fixture for ceramic watch covers provided in an embodiment of this utility model during use. Figure 1-2 As shown, the present invention provides a protective fixture for injection molding and polishing of ceramic watch covers, comprising a polishing concave fixture base plate 100 and multiple polishing media 200. The polishing concave fixture base plate 100 has multiple watch cover receiving units 110, in which the lower part of the ceramic watch cover 300 is placed. The polishing concave fixture base plate is the foundation of the entire protective fixture, and multiple watch cover receiving units are designed on the base plate, each unit for accommodating the lower part of the ceramic watch cover. The lower part of the ceramic watch cover is precisely placed in these units, ensuring the stability of the ceramic watch cover. This ensures that the position of the ceramic watch cover does not shift during operation, especially during injection molding and polishing, thereby avoiding damage or processing errors caused by movement. Simultaneously, the multiple watch cover receiving units allow the fixture to handle multiple ceramic watch covers simultaneously, resulting in high production efficiency.

[0021] Specifically, in one embodiment of this utility model, the polishing medium 200 covers the upper unpolished area of ​​the ceramic watch cover 300, and its function is to protect the upper unpolished area of ​​the ceramic watch cover from damage. Figure 3 As shown Figure 2 An enlarged view of part B is shown. (See attached image.) Figure 3As shown, the polishing insert 200 includes an integrally formed ceramic watch cover receiving portion 210 and a non-polished area protection position 220 formed above the ceramic watch cover receiving portion 210. The upper part of the ceramic watch cover 300 is housed within the ceramic watch cover receiving portion 210, and the non-polished area protection position 220 covers the non-polished area of ​​the upper surface of the ceramic watch cover 300. The ceramic watch cover receiving portion is the main part of the polishing insert and is specifically designed to house the upper part of the ceramic watch cover 300. The upper surface of the ceramic watch cover 300 is accurately positioned in this portion, ensuring that the ceramic watch cover will not be damaged due to unstable positioning during the polishing process. The non-polished area protection position 220 is located above the ceramic watch cover receiving portion 210 and covers the non-polished area on the upper surface of the ceramic watch cover 300. Some areas on the upper surface of the ceramic watch cover may not require polishing (such as specific markings or areas), and these areas need to be protected to prevent unnecessary wear or damage during the polishing process. Different ceramic watch covers may have unpolished areas of different shapes and sizes. Therefore, in this embodiment, the unpolished area protection position 220 of the protective bushing can be adjusted in shape according to the specific requirements of the ceramic watch cover. By designing and replacing polishing bushings of different sizes and shapes, the unpolished areas of ceramic watch covers of different sizes can be precisely protected. This flexibility makes the protective fixture not only suitable for a single model of ceramic watch cover, but also widely applicable to the production and processing of ceramic watch covers of various specifications and types, greatly improving the versatility and operability of the equipment.

[0022] Further, in one embodiment of this utility model, the watch cover receiving unit 110 is a circular groove formed on the upper surface of the polishing concave fixture base plate 100. The depth of the circular groove is less than the height of the polishing concave fixture base plate 100, the height of the ceramic watch cover 300 is greater than the depth of the circular groove, the diameter of the ceramic watch cover 300 is smaller than the diameter of the circular groove, and the lower surface of the ceramic watch cover 300 rests on the upper surface of the circular groove. The polishing concave fixture base plate 100 has a circular groove for accommodating the ceramic watch cover. The depth of this groove is limited and less than the overall height of the base plate, so as to expose the part requiring injection molding and polishing while providing support. The height of the ceramic watch cover is greater than the depth of the groove, allowing the ceramic watch cover to protrude from the upper surface of the groove. Its diameter is smaller than the diameter of the groove, ensuring that the watch cover has sufficient space to be placed in the groove without completely filling the entire groove. This helps ensure proper fit between the ceramic watch cover and the base plate of the polishing concave fixture, guaranteeing its stability and preventing the edges of the watch cover from being impacted or scratched during the polishing process, thus reducing the risk of damage during processing.

[0023] Further, in one embodiment of this utility model, the ceramic watch cover receiving portion 210 is a first hollow cylinder. The inner diameter of the first hollow cylinder is the same as the diameter of the ceramic watch cover 300, and the outer diameter of the first hollow cylinder is larger than the diameter of the circular groove. The height of the ceramic watch cover 300 is equal to the sum of the depth of the circular groove and the height of the first hollow cylinder. The non-polished area protection position 220 is a second hollow cylinder. The outer diameter of the second hollow cylinder is equal to the outer diameter of the first hollow cylinder, and the inner diameter of the second hollow cylinder is smaller than the inner diameter of the first hollow cylinder. The polishing medium is composed of the ceramic watch cover receiving portion 210 and the non-polished area protection position 220. The ceramic watch cover receiving portion adopts a hollow cylindrical design, with an inner diameter the same as the diameter of the ceramic watch cover. The outer diameter is larger than the diameter of the groove, ensuring that the ceramic watch cover is accurately placed in the receiving portion and preventing the ceramic watch cover from moving or tilting. The height of the ceramic watch cover is equal to the sum of the recess depth and the height of the receiving section. This design ensures that the ceramic watch cover has sufficient space within the receiving section while being securely fixed in the correct position. This precisely matches the size of the watch cover, avoiding unstable fixing due to improper sizing. The protective area for the non-polished area uses a second hollow cylinder design, with an outer diameter the same as the receiving section of the ceramic watch cover and a slightly smaller inner diameter. This forms an effective protective barrier on the non-polished area of ​​the ceramic watch cover, preventing it from being contacted or damaged by polishing tools during the polishing process. By adjusting the design of the protective area, it can accommodate ceramic watch covers of different shapes and sizes, providing targeted protection and ensuring the integrity of each watch cover.

[0024] In this embodiment, the ceramic watch cover receiving portion is specifically designed to accommodate the upper surface of the ceramic watch cover, while the non-polished area protection portion is used to cover the non-polished areas of the ceramic watch cover, preventing them from being damaged. By designing the non-polished area protection portion, the polishing bushing ensures that certain areas of the watch cover will not be contacted by polishing tools, thereby protecting the surface of the watch cover from scratches or abrasion. This design allows the polishing bushing not only to be used for ceramic watch covers of a single size, but also to adjust its size according to different watch cover sizes, ensuring that the non-polished areas of each ceramic watch cover are properly protected.

[0025] Furthermore, in one embodiment of this utility model, a plurality of positioning holes 120 are also provided on the polishing concave fixture base plate 100. The positioning holes 120 are formed on the lower surface of the circular groove and are concentrically arranged with the circular groove. The depth of the positioning holes 120 and the depth of the circular groove are equal to the height of the polishing concave fixture base plate 100. The positioning holes are located on the surface of the base plate and are arranged around the lower surface of the circular groove. The concentric arrangement of these holes with the groove ensures that the ceramic cover remains in the correct position during processing, improving the stability and accuracy of the processing.

[0026] Furthermore, in one embodiment of this utility model, the first hollow cylinder and the second hollow cylinder are integrally injection molded from polyamide plastic. The polished concave fixture base plate 100, the plurality of cover receiving units 110, and the plurality of positioning holes 120 are integrally injection molded from polyamide plastic. The fixture and its components are integrally injection molded from polyamide plastic. Polyamide plastic has good wear resistance, strength, and heat resistance, making it suitable for long-term use during the manufacturing process, and it has sufficient stability. Polyamide plastic not only has high physical properties, but the injection molding process can also ensure the high precision and high consistency of the fixture, enabling the fixture to work stably in mass production. At the same time, it provides high strength and wear-resistant support, ensuring the long service life of the fixture; and ensuring that the fixture is not easily deformed during the manufacturing process, maintaining high precision.

[0027] In this embodiment of the invention, a one-piece injection molding technology using polyamide plastic is employed to produce the polishing concave fixture base plate and multiple polishing media. This injection molding process not only improves production efficiency but also further enhances product consistency and stability through precise control of injection molding process parameters. The process uses one-piece injection molding of polyamide plastic containing glass fiber. Glass fiber reinforced polyamide material possesses high mechanical strength and temperature resistance. Using polyamide plastic instead of traditional glass fiber sheets reduces process complexity while improving molding accuracy and production efficiency. Traditionally, glass fiber sheet concave fixtures require complex processing, but the injection molding process described in this application allows for direct production of the polishing concave fixture base plate and polishing media. This technology simplifies the production process and saves material and labor costs. Through injection molding, precise process parameter control during production ensures a more stable production cycle, further improving product consistency. Compared to traditional processing methods, injection molding offers advantages such as saving time, reducing material waste, and lowering labor costs. Precise injection molding not only improves production efficiency but also significantly reduces production costs, thereby creating greater economic benefits for the company. The stability of the molding process and parameter control ensure high efficiency in each production cycle, contributing to improved overall production efficiency and enhanced market competitiveness. This invention, through innovative injection molding technology, not only improves product quality and production efficiency but also provides a sustainable technological solution for enterprises to reduce costs and increase profits.

[0028] In actual operation, the ceramic watch cover 300 is placed in the watch cover receiving unit 110 on the base plate 100 of the polishing concave fixture, ensuring its stable position. Then, the polishing insert 200 is used to cover the upper part of the ceramic watch cover, especially its non-polished area. Through this design, the non-polished area of ​​the ceramic watch cover is covered by the protective cover 220 and will not be damaged during the injection molding polishing process. At the start of the polishing process, the machine polishes the ceramic watch cover, but because the non-polished areas are covered by the protective cover, these areas do not come into contact with the polishing tool, thus avoiding damage. This fixture design provides a solution for replacing polishing inserts of different sizes. Because the size, shape, and distribution of non-polished areas of ceramic watch covers vary, by replacing polishing inserts of different sizes, it can be ensured that the protective cover covers the non-polished areas of the ceramic watch cover, regardless of the specific size of the ceramic watch cover. This design greatly improves production efficiency and effectively reduces the error rate and material waste during the production process. By adopting this injection molding polishing protective fixture, the processing accuracy of the ceramic watch cover is effectively guaranteed. Whether in mass production or in the processing of ceramic watch covers of different specifications, precise protection can be achieved by simply changing the light-reflecting elements of different sizes, thereby reducing quality problems caused by inappropriate protection.

[0029] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0030] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspect lies in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0031] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0032] It should be noted that the above embodiments are illustrative of the present invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

Claims

1. A protective clamp for injection molding and polishing of ceramic watch covers, characterized in that, The device includes a polishing concave fixture base plate (100) and multiple polishing mediators (200). The polishing concave fixture base plate (100) has multiple watch cover receiving units (110). The lower part of the ceramic watch cover (300) is placed in the watch cover receiving unit (110). The polishing mediator (200) includes an integrally formed ceramic watch cover receiving part (210) and a non-polished area protection position (220) formed above the ceramic watch cover receiving part (210). The upper part of the ceramic watch cover (300) is accommodated in the ceramic watch cover receiving part (210). The non-polished area protection position (220) covers the non-polished area of ​​the upper surface of the ceramic watch cover (300).

2. The injection molding polishing protective fixture for ceramic watch covers as described in claim 1, characterized in that, The watch cover receiving unit (110) is a circular groove formed on the upper surface of the polishing concave fixture base plate (100). The depth of the circular groove is less than the height of the polishing concave fixture base plate (100). The height of the ceramic watch cover (300) is greater than the depth of the circular groove. The diameter of the ceramic watch cover (300) is less than the diameter of the circular groove. The lower surface of the ceramic watch cover (300) is placed on the upper surface of the circular groove.

3. The injection molding polishing protective fixture for ceramic watch covers as described in claim 2, characterized in that, The ceramic watch cover receiving portion (210) is a first hollow cylinder. The inner diameter of the first hollow cylinder is the same as the diameter of the ceramic watch cover (300). The outer diameter of the first hollow cylinder is greater than the diameter of the circular groove. The height of the ceramic watch cover (300) is equal to the sum of the depth of the circular groove and the height of the first hollow cylinder.

4. The injection molding polishing protective fixture for ceramic watch covers as described in claim 3, characterized in that, The non-polished area protection position (220) is a second hollow cylinder, the outer diameter of the second hollow cylinder is equal to the outer diameter of the first hollow cylinder, and the inner diameter of the second hollow cylinder is smaller than the inner diameter of the first hollow cylinder.

5. The injection molding polishing protective fixture for ceramic watch covers as described in claim 4, characterized in that, The first hollow cylinder and the second hollow cylinder are integrally injection molded from polyamide plastic.

6. The injection molding polishing protective fixture for ceramic watch covers as described in claim 2, characterized in that, A plurality of positioning holes (120) are also provided on the base plate (100) of the polishing concave fixture. The positioning holes (120) are formed on the lower surface of the circular groove and are concentric with the circular groove. The depth of the positioning holes (120) and the depth of the circular groove are equal to the height of the base plate (100) of the polishing concave fixture.

7. The injection molding polishing protective fixture for ceramic watch covers as described in claim 6, characterized in that, The polished concave fixture base plate (100), the plurality of cover receiving units (110), and the plurality of positioning holes (120) are integrally injection molded from polyamide plastic.

Images