A cover plate manufacturing apparatus

Abstract

The utility model discloses a kind of cover plate manufacturing equipment, including workbench, conveyer belt, cutting mechanism, fine carving mechanism and film pasting mechanism. Among them, conveyer belt is located on workbench, is equipped with multiple processing stations to transmit glass;Cutting mechanism is installed in workbench front end, for cutting large piece of glass into blank;Fine carving mechanism is located behind cutting mechanism, film pasting mechanism is located behind fine carving mechanism, can automatically attach pyrolysis film to 2.5D surface of glass after fine carving, form sweep light protective layer.The application realizes the automation process of cutting, fine carving, film pasting by assembly line operation, effectively prevent camber surface excessive grinding, satisfy high-end quality demand, yield and precision significantly improve.

Description

Technical Field

[0001] This utility model relates to the technical field of cover plate processing, and in particular to a cover plate manufacturing equipment. Background Technology

[0002] In the manufacturing of 2.5D cover glass, surface polishing is a crucial step in determining the product's appearance quality and performance. Due to their unique curved edge structure, 2.5D cover glass offers superior visual appeal and ergonomics compared to flat cover glass, and is widely used in high-end display devices such as automotive electronics and smartphones.

[0003] Traditional 2.5D cover glass polishing processes primarily involve directly polishing the glass cover. Specifically, the existing process typically involves cutting large sheets of glass into blanks and then directly grinding and polishing the curved surfaces using a polishing machine. However, this process reveals significant drawbacks in actual production: due to the difficulty in precisely controlling the continuous grinding force of the abrasive on the curved surface during polishing, over-grinding occurs in the curved areas, causing the originally designed 2.5D curvature to "collapse," meaning the radius of curvature of the curved surface increases and the curvature at the R-corners deforms, failing to achieve a 1:1 match with the customer's design requirements. This problem results in a significant deficiency in existing technology: when using direct polishing surface treatment, the curvature effect of the 2.5D cover glass is poor, the yield is low, and it cannot meet high-end quality requirements; if a flat grinding process is added after polishing to repair the collapsed areas, it will increase process costs and further reduce the yield. To solve these problems, existing processes require customers to sign collapsibility limit samples for conditional mass production, which seriously affects product quality and production efficiency. Utility Model Content

[0004] This utility model aims to at least partially solve one of the problems in related technologies. Therefore, one of the objectives of this utility model is to provide a cover plate manufacturing equipment that solves the problem of arc surface collapse during the 2.5D cover plate polishing process, improves the yield and precision of cover plate processing, and meets the requirements of high-end quality.

[0005] A cover plate manufacturing apparatus, the cover plate manufacturing apparatus comprising:

[0006] Workbench;

[0007] A conveyor belt is provided on the workbench and has multiple spaced-apart processing stations. The conveyor belt is used to transport glass.

[0008] A cutting mechanism is installed at the front end of the worktable and is used to cut large pieces of glass into rough glass.

[0009] The precision carving mechanism is located on the workbench and behind the cutting mechanism, and performs precision carving on the rough glass.

[0010] A film-applying mechanism is provided on the workbench and located behind the engraving mechanism. The film-applying mechanism is used to apply a pyrolytic film to the 2.5D surface of the engraved glass.

[0011] Furthermore, the cutting mechanism includes a cutting module, a linear guide rail, and a drive module. The linear guide rail is mounted on the worktable, the cutting module is connected to the linear guide rail, and the drive module is connected to the cutting module.

[0012] Furthermore, the cutting module is a laser cutting head or a diamond cutting tool.

[0013] Furthermore, the engraving mechanism is a five-axis CNC engraving machine.

[0014] Furthermore, the film-applying mechanism includes a pyrolytic film unwinding assembly, a film-applying roller device, and a cutting device, which are arranged sequentially along the conveyor belt transmission direction.

[0015] Furthermore, the pyrolysis film unwinding assembly includes an unwinding roller and a tension controller, the tension controller being connected to the unwinding roller.

[0016] Furthermore, the conveyor belt also includes a vacuum adsorption module, which is disposed on the surface of the processing station and is used to adsorb and fix the glass.

[0017] Furthermore, the vacuum adsorption module includes adsorption holes and vacuum pipelines uniformly distributed on the surface of the processing station, and the vacuum pipelines are connected to a vacuum pump.

[0018] Furthermore, the workbench also includes multiple mounting plates arranged vertically, and the cutting mechanism, the engraving mechanism, and the film-applying mechanism are respectively mounted on different mounting plates.

[0019] Furthermore, the mounting plate is made of acrylic.

[0020] The technical solutions provided in this application have the following advantages compared with the prior art:

[0021] The production process of this application involves placing large sheets of glass on a conveyor belt, which then transports them to a cutting mechanism. The cutting mechanism cuts the glass into rough glass blanks according to preset dimensions. The rough glass blanks continue moving on the conveyor belt to a precision carving mechanism, where they are processed to form the required shape. The carved glass is then conveyed to a film-applying mechanism, which automatically applies a pyrolytic film. The glass with the applied pyrolytic film can then proceed to subsequent processes such as polishing and immersion decoction. This equipment achieves automatic transport of glass blanks via a conveyor belt, with the cutting mechanism cutting large sheets of glass into rough blanks, the precision carving mechanism processing the shape, and the film-applying mechanism applying a pyrolytic film to protect the 2.5D surface. This effectively solves the problem of curved surface collapse during the polishing process of 2.5D cover plates, improving the yield and precision of cover plate processing and meeting high-end quality requirements. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] In the attached image:

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the cover plate manufacturing equipment of this application.

[0026] Figure label:

[0027] 1. A cover plate manufacturing equipment; 10. Workbench; 11. Mounting plate; 20. Conveyor belt; 21. Processing station; 30. Cutting mechanism; 31. Cutting module; 32. Linear guide rail; 33. Drive module; 40. Engraving mechanism; 50. Film application mechanism; 51. Pyrolytic film unwinding assembly; 52. Film application roller device; 53. Cutting device. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] like Figure 1 As shown, the cover plate manufacturing equipment 1 provided in this application includes:

[0031] Workbench 10;

[0032] Conveyor belt 20, which is disposed on the workbench 10, has a plurality of spaced processing stations 21, and is used to transport glass;

[0033] A cutting mechanism 30 is installed at the front end of the worktable 10 and is used to cut large pieces of glass into rough glass.

[0034] The fine carving mechanism 40 is located on the workbench 10 and behind the cutting mechanism 30. The fine carving mechanism 40 performs fine carving on the rough glass.

[0035] The film application mechanism 50 is located on the worktable 10 and behind the fine carving mechanism 40. The film application mechanism 50 is used to apply a pyrolytic film to the finely carved 2.5D glass surface.

[0036] The workbench 10 serves as the basic support platform for the equipment, supporting various mechanisms and providing a stable processing environment.

[0037] Conveyor belt 20 is mounted on worktable 10 to transport glass blanks and enable automatic connection between various processing steps. Conveyor belt 20 is driven by a servo motor, which can precisely control the transmission speed and position to ensure accurate positioning of the glass blanks at each mechanism.

[0038] The cutting mechanism 30 is installed at the front end of the worktable 10 and is used to cut large pieces of glass into rough glass pieces that are 0.6 mm larger than the finished product. The cutting mechanism 30 can use laser cutting or diamond cutting tools and is equipped with a high-precision positioning system and a cutting parameter control system to ensure the accuracy of the cutting dimensions and the flatness of the cutting surface.

[0039] The fine carving mechanism 40 is located on the worktable 10 behind the cutting mechanism 30. It is used to perform fine carving on the cut glass blanks, removing excess material to achieve the desired finished dimensions. The fine carving mechanism 40 is a CNC fine carving machine with multi-axis linkage control. It can precisely carve the glass according to a preset processing program, ensuring the accuracy of the dimensions.

[0040] The film-applying mechanism 50 is located after the precision carving mechanism 40 and is used to apply a pyrolytic film to the 2.5D surface of the precision-carved glass, providing protection for areas that do not require polishing during the polishing process. The film-applying mechanism 50 includes a pyrolytic film unwinding device, a tension control system, a film-applying pressure roller, and a positioning system, enabling automatic unwinding, precise alignment, and uniform application of the pyrolytic film.

[0041] The workflow is as follows: A large sheet of glass is placed at the feed end of conveyor belt 20. The equipment is started, and conveyor belt 20 transports the glass to cutting mechanism 30. Cutting mechanism 30 cuts the glass according to a preset cutting program, resulting in a blank glass 0.6mm larger than the finished product. Conveyor belt 20 then transports the blank glass to engraving mechanism 40, which performs engraving on the blank glass according to the required dimensions of the finished product, removing excess material. After engraving, conveyor belt 20 transports the glass to film-applying mechanism 50. The film-applying mechanism 50's vision positioning system positions the glass, then automatically unwinds the pyrolytic film and applies it to the 2.5D surface of the glass using pressure rollers, protecting areas that do not require polishing. The film-applied glass is then transported by conveyor belt 20 to the subsequent polishing mechanism for curved surface polishing, and then enters a hot water immersion device for film removal, finally obtaining a 2.5D cover plate that meets the requirements.

[0042] Furthermore, the cutting mechanism 30 includes a cutting module 31, a linear guide rail 32, and a drive module 33. The linear guide rail 32 is mounted on the worktable 10, the cutting module 31 is connected to the linear guide rail 32, and the drive module 33 is driven and connected to the cutting module 31.

[0043] The linear guide rail 32 provides high-precision linear motion guidance for the cutting module 31, reducing motion deviation and ensuring the straightness and parallelism of the cutting trajectory. The drive module 33 (such as a motor) precisely controls the moving speed and position of the cutting module 31, enabling on-demand adjustment of cutting force and depth, avoiding glass chipping or dimensional deviations caused by mechanical shaking. This structure makes the cutting process more stable, and the dimensional accuracy error of the raw glass can be controlled within ±0.1mm, laying the foundation for subsequent fine carving processes.

[0044] Furthermore, the cutting module 31 is a laser cutting head or a diamond cutting tool.

[0045] The versatility of the cutting module 31 provides the equipment with flexible processing adaptability. The laser cutting head uses a high-energy laser beam to instantly melt or vaporize glass, resulting in a small heat-affected zone and a smooth, burr-free cut. It is suitable for cutting thin glass or complex irregularly shaped blanks, achieving a cutting accuracy of ±0.05mm, and avoids cracking caused by mechanical stress by not contacting the glass. Diamond tools cut glass through the physical cutting action of diamond particles, suitable for batch cutting of thick glass or large blanks. They offer lower cost, higher cutting efficiency, and can withstand larger cutting loads. These two options allow the equipment to be flexibly switched according to glass thickness, processing accuracy, and production capacity requirements, enhancing its versatility.

[0046] Furthermore, the engraving mechanism 40 is a five-axis CNC engraving machine.

[0047] The five-axis CNC engraving machine, through the linkage of three linear axes (X, Y, and Z) and two rotary axes (A and C), can precisely control the tool to process along the normal direction of the glass's curved surface, avoiding the contour errors of the curved surface caused by the fixed tool posture in traditional three-axis equipment. Its processing accuracy can reach ±0.02mm, achieving smooth transitions at radius (R-angle) angles, ensuring the curvature of the 2.5D surface closely matches the design drawings. This provides a standard shape basis for subsequent protective film application, fundamentally reducing the risk of collapse due to shape deviations.

[0048] Furthermore, the film-applying mechanism 50 includes a pyrolytic film unwinding assembly 51, a film-applying roller device 52, and a cutting device 53, which are arranged sequentially along the conveyor belt 20.

[0049] The pyrolytic film unwinding assembly 51 continuously supplies film material, while the film-applying roller device 52 applies uniform pressure to tightly adhere the pyrolytic film to the 2.5D surface of the glass, preventing bubbles and wrinkles. The cutting device 53 precisely cuts the film material after application, preventing excess film from affecting subsequent processes. The three components are linearly arranged along the transport direction and move synchronously with the conveyor belt 20, realizing a fully automated process of "unwinding → applying film → cutting," ensuring effective protection of curved surfaces by the pyrolytic film.

[0050] Furthermore, the pyrolysis film unwinding assembly 51 includes an unwinding roller and a tension controller, the tension controller being connected to the unwinding roller.

[0051] The tension controller monitors the tension changes of the pyrolytic film in real time and automatically adjusts the braking torque of the unwinding roller to keep the film tension within the optimal range. Constant tension prevents wrinkles caused by slack during unwinding or stretching and deformation due to excessive tension, ensuring the pyrolytic film adheres smoothly to the 2.5D glass surface. This improves application accuracy and protective effect, and guarantees uniform stress on the film during subsequent polishing processes.

[0052] Furthermore, the conveyor belt 20 also includes a vacuum adsorption module, which is disposed on the surface of the processing station 21 and is used to adsorb and fix the glass.

[0053] The vacuum adsorption module generates negative pressure through a vacuum pump, which is then conducted through vacuum pipelines to the adsorption holes on the surface of the processing station 21, forming a uniform adsorption force that firmly adheres the glass to the conveyor belt 20. This design effectively prevents the glass from shifting due to vibration or acceleration during transport, cutting, and precision carving, ensuring the positional accuracy of the glass in each process. Especially for thin glass, vacuum adsorption avoids breakage that may be caused by mechanical clamping, improving processing safety and yield.

[0054] Furthermore, the vacuum adsorption module includes adsorption holes and vacuum pipelines uniformly distributed on the surface of the processing station 21, and the vacuum pipelines are connected to a vacuum pump.

[0055] The adsorption holes on the surface of processing station 21 are evenly distributed in a matrix, ensuring consistent adsorption force across all areas of the glass surface and preventing glass warping due to insufficient local adsorption force. The vacuum pipeline uses 8-10mm diameter negative pressure resistant flexible tubing, connected to the vacuum pump via the shortest path to reduce negative pressure loss and ensure rapid conduction of adsorption force. This structural design allows the vacuum adsorption module to adapt to glass of different sizes, and the adsorption force remains stable and undiminished during equipment operation, ensuring positioning accuracy of the glass during high-speed transport.

[0056] Furthermore, the workbench 10 also includes a plurality of mounting plates 11 arranged in a vertical direction, and the cutting mechanism 30, the engraving mechanism 40 and the film-applying mechanism 50 are respectively mounted on different mounting plates 11.

[0057] Multiple vertical mounting plates 11 physically isolate the cutting, engraving, and film-applying mechanisms 50, preventing vibrations from the cutting mechanism 30 (such as high-frequency vibrations during diamond cutting) from being transmitted to the engraving mechanism 40 and affecting engraving accuracy. Each mechanism is independently mounted on a different mounting plate 11, facilitating later maintenance and replacement. For example, when replacing the cutting module 31, it is not necessary to disassemble the engraving mechanism 40, improving maintenance efficiency. In addition, the split layout allows the equipment to flexibly adjust the spacing and number of each mechanism according to production capacity requirements. For example, increasing the number of engraving mechanisms 40 to increase production capacity enhances the scalability of the equipment.

[0058] Furthermore, the mounting plate 11 is made of acrylic.

[0059] Acrylic (polymethyl methacrylate) is characterized by its low density and light weight, which reduces the overall load on the worktable 10 and decreases the energy consumption of the drive system. Its good insulation properties prevent static electricity buildup from causing poor glass adhesion or misalignment of the film material. Furthermore, acrylic has excellent processing performance, allowing for precise machining of mounting holes and flatness using CNC engraving machines, ensuring the verticality of the mounting plate 11 and the installation accuracy of the mechanism. In addition, acrylic is less expensive than metal sheets and is resistant to chemical corrosion, making it suitable for use in humid environments during glass processing (such as coolant splashes during polishing processes), extending the equipment's lifespan.

[0060] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A cover plate manufacturing equipment, characterized in that, include: Workbench; A conveyor belt is provided on the workbench and has multiple spaced-apart processing stations. The conveyor belt is used to transport glass. A cutting mechanism is installed at the front end of the worktable and is used to cut large pieces of glass into rough glass. The precision carving mechanism is located on the workbench and behind the cutting mechanism, and performs precision carving on the rough glass. A film-applying mechanism is provided on the workbench and located behind the engraving mechanism. The film-applying mechanism is used to apply a pyrolytic film to the 2.5D surface of the engraved glass.

2. The cover plate manufacturing equipment according to claim 1, characterized in that, The cutting mechanism includes a cutting module, a linear guide rail, and a drive module. The linear guide rail is mounted on the worktable, the cutting module is connected to the linear guide rail, and the drive module drives the cutting module.

3. The cover plate manufacturing equipment according to claim 2, characterized in that, The cutting module is a laser cutting head or a diamond cutting tool.

4. The cover plate manufacturing equipment according to claim 1, characterized in that, The engraving mechanism is a five-axis CNC engraving machine.

5. The cover plate manufacturing equipment according to claim 1, characterized in that, The film-applying mechanism includes a pyrolytic film unwinding assembly, a film-applying roller device, and a cutting device, which are arranged sequentially along the conveyor belt transmission direction.

6. The cover plate manufacturing equipment according to claim 5, characterized in that, The pyrolysis film unwinding assembly includes an unwinding roller and a tension controller, the tension controller being connected to the unwinding roller.

7. The cover plate manufacturing equipment according to claim 1, characterized in that, The conveyor belt also includes a vacuum adsorption module, which is located on the surface of the processing station and is used to adsorb and fix the glass.

8. The cover plate manufacturing equipment according to claim 7, characterized in that, The vacuum adsorption module includes adsorption holes and vacuum pipelines evenly distributed on the surface of the processing station, and the vacuum pipelines are connected to a vacuum pump.

9. The cover plate manufacturing equipment according to claim 1, characterized in that, The workbench also includes multiple mounting plates arranged vertically, and the cutting mechanism, the engraving mechanism and the film-applying mechanism are respectively mounted on different mounting plates.

10. A cover plate manufacturing equipment according to claim 9, characterized in that, The mounting plate is made of acrylic.

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