A grinding device for manufacturing plastic keycaps

By designing a dust collection hood, collection box, and atomizing nozzle in the plastic keycap polishing device, the problem of dust diffusion is solved, achieving efficient dust collection and ensuring a clean working environment and keycap quality.

CN224310290UActive Publication Date: 2026-06-02GUOLONG (DONGGUAN) TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUOLONG (DONGGUAN) TECHNOLOGY CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The current process of polishing plastic keycaps results in severe dust dispersion and low dust collection efficiency, which affects the working environment and the health of operators.

Method used

Design a polishing device for manufacturing plastic keycaps, equipped with a dust collection hood, a collection box and an air collection module, combined with an atomizing nozzle and a water mist barrier to form a surrounding water mist coverage, achieving efficient dust collection.

Benefits of technology

It effectively reduces dust diffusion, improves dust collection efficiency, ensures a clean working environment, protects the health of operators, and avoids the wetting effect of dust particles on the keycap surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a grinding device for manufacturing plastic keycaps, comprising a device body, a grinding wheel for grinding, and a dust-reducing component for reducing dust pollution. The dust-reducing component includes an absorption section and an atomizing section. The absorption section includes a dust collection hood surrounding the grinding wheel, a collection box mounted on the device body, and an air collection module mounted on the device body. This grinding device for manufacturing plastic keycaps, by incorporating the dust collection hood, collection box, and air collection module, ensures that the dust collection hood, mounted on the grinding wheel, immediately draws in the grinding debris and dust generated during grinding of the plastic keycaps, ultimately collecting them in the collection box. This prevents dust diffusion, effectively reduces dust pollution in the work area, and improves dust collection efficiency. Simultaneously, the inclusion of a water collection cylinder and atomizing nozzles forms a surrounding water mist barrier, further enhancing the dust collection effect.
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Description

Technical Field

[0001] This utility model relates to the field of plastic keycap manufacturing technology, specifically a grinding device for manufacturing plastic keycaps. Background Technology

[0002] Plastic keycaps are one of the core components of a keyboard. Their surface finish directly affects the user's feel and the product's aesthetics, playing a role in protecting the switches, providing a comfortable touch, and enhancing the appearance. They are usually made of various types of plastic materials, each with different properties that affect the overall performance and user experience of the keyboard. During the keycap manufacturing process, injection-molded keycaps usually need to be polished to remove burrs, parting lines, and other defects, and to improve surface smoothness.

[0003] In the existing technology, automated grinding equipment, such as fixed grinding wheels or polishing machines, is usually used in the grinding process of plastic keycaps. However, most of the existing equipment adopts an open structure, and the plastic dust generated during the grinding process is easy to spread. The spread of dust will affect the normal working environment. Even with a simple dust collection device, it is still difficult to completely collect micron-sized particles, which reduces the dust collection effect.

[0004] Therefore, a grinding device for manufacturing plastic keycaps is proposed to solve the aforementioned technical problem of low dust collection efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a grinding device for manufacturing plastic keycaps, which has the advantage of good dust collection effect and solves the problem of low dust collection efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for manufacturing plastic keycaps, comprising a device body, wherein a grinding wheel for grinding is provided on the device body, and a dust-reducing component for reducing dust pollution is provided on the device body.

[0007] The dust suppression assembly includes an absorption section and an atomizing section. The absorption section includes a dust collection hood disposed outside the grinding wheel, a collection box disposed on the device body, and an air collection module assembled on the device body.

[0008] Furthermore, the device body is provided with a worktable for placing plastic keycaps facing the grinding wheel, and the device body is provided with a drive unit connected to the grinding wheel for polishing the plastic keycaps.

[0009] Furthermore, a filter plate is detachably connected inside the collection box, and an elastic hose with its other end connected to the dust collection hood is connected to the side of the collection box away from the air collection module.

[0010] Furthermore, the air inlet of the gas collection module is connected to a connecting pipe whose other end is connected to the collection box.

[0011] Furthermore, the inner side of the dust collection hood is provided with several dust collection channels, which are connected to the flexible hose.

[0012] Furthermore, the atomizing unit includes two water collection cylinders symmetrically arranged on the device body. Several atomizing nozzles are arranged on the side of the water collection cylinder facing the workbench, and a water inlet pipe is connected to the water collection cylinder.

[0013] Furthermore, several atomizing nozzles are arranged in an array on the water collection cylinder, and the end of the water inlet pipe away from the water collection cylinder is connected to an external water pump.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. This grinding device for manufacturing plastic keycaps, by setting up a dust collection hood, a collection box, and an air collection module, allows the dust collection hood to be installed on the grinding wheel. When the grinding wheel grinds the plastic keycaps, the grinding debris and dust generated are sucked into the dust collection hood immediately and finally collected in the collection box, preventing the spread of dust, effectively reducing dust pollution in the work area, protecting the health of operators, and improving the efficiency of dust collection.

[0016] 2. The polishing device for manufacturing plastic keycaps forms a surrounding water mist barrier by setting up a water collection cylinder and an atomizing nozzle, achieving 360° coverage of the working area without dead angles. The dual water collection cylinder design ensures uniform distribution of water mist, effectively suppressing the diffusion of dust generated in different locations. It can effectively capture dust particles while avoiding excessive wetting that affects the surface quality of the keycaps, further improving the dust collection effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the dust suppression component in this utility model;

[0019] Figure 3 This is a cross-sectional view of the dust collection hood in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the collection box in this utility model;

[0021] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 100, device body; 200, grinding wheel; 300, dust suppression component; 301, dust collection hood; 302, collection box; 303, air collection module; 304, filter plate; 305, flexible hose; 306, water collection cylinder; 307, atomizing nozzle; 308, water inlet pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 A grinding device for manufacturing plastic keycaps in this embodiment includes a device body 100, a grinding wheel 200 for grinding is provided on the device body 100, and a dust reduction component 300 for reducing dust pollution is provided on the device body 100.

[0025] The dust collection assembly 300 includes an absorption section and an atomizing section. The absorption section includes a dust collection hood 301 disposed outside the grinding wheel 200, a collection box 302 disposed on the device body 100, and an air collection module 303 assembled on the device body 100.

[0026] Furthermore, a worktable for placing plastic keycaps is provided on the device body 100 facing the grinding wheel 200, and a drive unit is provided on the device body 100, which is connected to the grinding wheel 200 for polishing the plastic keycaps.

[0027] Preferably, the worktable adopts a rotatable design with an adjustable rotation angle of 0-360° and a rotation speed range of 5-50rpm. It is precisely controlled by a servo motor to adapt to the polishing needs of keycaps of different shapes. The worktable is a common piece of equipment in the field of plastic keycap manufacturing technology. At the same time, the usage method and working principle of the worktable are well known to those skilled in the field of plastic keycap manufacturing technology, and will not be elaborated on further in this article.

[0028] The drive unit includes a main drive motor connected to the grinding wheel 200. When the main drive motor is running, it drives the grinding wheel 200 to rotate at high speed to complete the grinding of the plastic keycaps.

[0029] It is known that the workbench surface is equipped with a contour clamp, which is made of elastic silicone material and has an embedded magnetic fixing unit, and can be used to fit plastic keycaps of different specifications with heights ranging from 5mm to 15mm.

[0030] Furthermore, the workbench surface is equipped with a contouring clamp made of elastic silicone material with embedded magnetic fixing units, which can accommodate plastic keycaps of different specifications with heights ranging from 5mm to 15mm.

[0031] When applying,

[0032] After the operator fixes the plastic keycap to be processed on the workbench, the drive unit is started to drive the grinding wheel 200 to rotate. The grinding wheel 200 performs precision grinding on the surface of the keycap while rotating at high speed. The dust generated during the grinding process is processed in real time by the dust suppression component 300. The air collection module 303 is started to generate negative pressure airflow, and the grinding dust is captured by the dust collection hood 301.

[0033] Please see Figure 2-4 In this embodiment, the dust collection component 300 includes an absorption section and an atomizing section. The absorption section includes a dust collection hood 301 disposed outside the grinding wheel 200, a collection box 302 disposed on the device body 100, and an air collection module 303 assembled on the device body 100.

[0034] The inside of the collection box 302 is detachably connected to a filter plate 304, and the side of the collection box 302 away from the air collection module 303 is connected to an elastic hose 305 whose other end is connected to the dust collection hood 301.

[0035] Furthermore, the filter plate 304 can trap dust particles ≥0.3μm, and at the same time prevent fine dust from entering the air collection module 303 and causing impeller wear.

[0036] The air inlet of the air collection module 303 is connected to a connecting pipe whose other end is connected to the collection box 302. Specifically, the air collection module 303 is connected to the control unit.

[0037] It is understood that the control unit controls the air collection module 303 to generate negative pressure airflow, so that dust is collected by the dust collection hood 301; the control unit and its working principle are well known to those skilled in the art, and will not be described in this embodiment.

[0038] The inner side of the dust collection hood 301 has several dust collection channels, which are connected to the flexible hose 305.

[0039] During application, the dust generated by the grinding wheel 200 diffuses outward under the action of centrifugal force. The air collection module 303 is activated to generate negative pressure airflow. The grinding dust is captured by the dust collection hood 301, and the dust airflow is transported through the elastic hose 305 and finally enters the collection box 302. The filter plate 304 can intercept dust particles ≥0.3μm, and at the same time, it can also prevent fine dust from entering the air collection module 303 and causing impeller wear. At this time, the dust collection is completed.

[0040] Please see Figure 2 and Figure 5In this embodiment, the atomizing unit includes two water collection cylinders 306 symmetrically arranged on the device body 100. Several atomizing nozzles 307 are arranged on the side of the water collection cylinder 306 facing the workbench. A water inlet pipe 308 is connected to the water collection cylinder 306.

[0041] Several atomizing nozzles 307 are arranged in an array on the water collection cylinder 306, and the end of the water inlet pipe 308 away from the water collection cylinder 306 is connected to an external water pump.

[0042] In application, an external water pump delivers water through the inlet pipe 308 to two symmetrically arranged water collection cylinders 306. The water flows through the distribution chamber inside the water collection cylinder 306 and is evenly distributed to each atomizing nozzle 307. The atomizing nozzle 307 produces ultra-fine water mist, forming a three-dimensional fog curtain. After the water mist combines with the dust, it can effectively prevent the dust from spreading and further improve the dust reduction effect.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A polishing device for manufacturing a plastic keycap, characterized by: The device includes a device body (100), on which a grinding wheel (200) for grinding is provided, and on which a dust-reducing component (300) for reducing dust pollution is provided; The dust suppression assembly (300) includes an absorption section and an atomizing section. The absorption section includes a dust collection hood (301) disposed outside the grinding wheel (200), a collection box (302) disposed on the device body (100), and an air collection module (303) assembled on the device body (100).

2. The polishing apparatus for manufacturing a plastic keycap according to claim 1, wherein: The device body (100) is provided with a worktable for placing plastic keycaps facing the grinding wheel (200). The device body (100) is provided with a drive unit, which is connected to the grinding wheel (200) and is used to polish the plastic keycaps.

3. The polishing apparatus for manufacturing a plastic keycap according to claim 1, wherein: The collection box (302) is detachably connected to a filter plate (304), and the side of the collection box (302) away from the gas collection module (303) is connected to an elastic hose (305) whose other end is connected to the dust collection hood (301).

4. The polishing apparatus for manufacturing a plastic keycap according to claim 1, wherein: The air inlet of the gas collection module (303) is connected to a connecting pipe whose other end is connected to the collection box (302).

5. The polishing apparatus for manufacturing a plastic keycap according to claim 1, wherein: The dust collection hood (301) has several dust collection channels on its inner side, and the dust collection channels are connected to the elastic hose (305).

6. The polishing device for manufacturing plastic keycaps according to claim 1, characterized in that: The atomizing section includes two water collection cylinders (306) symmetrically arranged on the device body (100). Several atomizing nozzles (307) are arranged on the side of the water collection cylinder (306) facing the workbench. A water inlet pipe (308) is connected to the water collection cylinder (306).

7. A polishing device for manufacturing plastic keycaps according to claim 6, characterized in that: Several atomizing nozzles (307) are arranged in an array on the water collection cylinder (306), and the end of the water inlet pipe (308) away from the water collection cylinder (306) is connected to an external water pump.