Paint spraying and laser carving jig for multimedia word keys
By designing a multimedia keypad laser engraving fixture with a limiting seat and limiting cylinder structure, the problem of paint splattering during the painting process was solved, maintaining the light transmittance of the pattern and the quality of the product, and improving the mechanical performance and service life of the fixture.
Patent Information
- Application Number
- CN202422545906.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing multimedia keycaps have large openings at the bottom, which makes it easy for paint to splatter into the keycaps during the painting process, obscuring the laser-engraved pattern and reducing light transmittance and product quality.
A multimedia keypad spray painting and laser engraving fixture was designed, including a limiting base and a limiting cylinder. The limiting cylinder has a limiting groove that engages with the limiting protrusion of the keycap. The base and the limiting cylinder are an integral structure. The upper surface of the base covers the bottom surface of the keycap. The connecting strip is hollowed out to facilitate paint flow and enhance the structural strength.
It effectively prevents paint from splashing into the keycaps, maintains the translucency of the laser-engraved pattern, improves product quality, and facilitates the disassembly of multimedia keys and extends the lifespan of the fixture.
Smart Images

Figure CN223475314U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of spray painting and laser engraving fixtures, specifically relating to a spray painting and laser engraving fixture for multimedia keypads. Background Technology
[0002] Currently, some multimedia keyboards have large bottom openings. During the spray painting and laser engraving process, paint can easily splatter into the keycaps. If the paint adheres to the inner top surface opposite the laser-engraved pattern, it will obscure the pattern, reducing the light transmittance of the laser-engraved pattern and lowering the overall quality of the multimedia keyboards. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a multimedia keypad spray painting and laser engraving fixture.
[0004] To achieve the above objectives, this utility model discloses a multimedia keypad spray painting and laser engraving fixture, including a fixture body, on which a plurality of limiting seats for securing multimedia keypads are provided;
[0005] The limiting seat includes an integral base and a limiting cylinder. The base is mounted on the main body of the fixture, and the limiting cylinder is located at the center of the upper surface of the base. The surface of the upper surface of the base located outside the limiting cylinder is a contact surface, which is used to abut against the bottom surface of the multimedia key. The upper and lower ends of the inner cavity of the limiting cylinder are through, and two inner sidewalls with opposite positions inside the limiting cylinder are provided with limiting grooves. The limiting grooves are used to engage with the limiting protrusions of the keycaps.
[0006] Preferably, the projection of the upper surface of the base overlaps the projection of the bottom surface of the multimedia keypad.
[0007] Preferably, the projection of the upper surface of the base completely overlaps with the projection of the bottom surface of the multimedia keypad.
[0008] Preferably, the top of the inner wall of the limiting cylinder is inclined outward to form a guide slope.
[0009] Preferably, the main body of the fixture is hollowed out at the position opposite to the corresponding limiting seat;
[0010] A connecting strip is provided between the main body of the fixture and the base. The two ends of the connecting strip are connected to the main body of the fixture and the base respectively. There are multiple connecting strips, which are evenly distributed and have a hollowed-out space between adjacent connecting strips.
[0011] Preferably, there are four connecting strips, which are arranged symmetrically at the center.
[0012] Preferably, the lower surface of the fixture body is provided with multiple first reinforcing ribs and second reinforcing ribs, the first reinforcing ribs are provided between two adjacent rows of limiting seats, and the second reinforcing ribs are provided between two adjacent columns of limiting seats.
[0013] Preferably, the fixture body is rectangular, with positioning posts at the four corners of the upper surface and limiting sleeves at the four corners of the lower surface, the limiting sleeves being positioned and engaged with the positioning posts.
[0014] Preferably, the lower surface of the fixture body is provided with hand-held grooves on both sides.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] A limiting cylinder is located at the center of the upper surface of the base. The outer surface of the upper surface of the base, located on the outside of the limiting cylinder, serves as the abutment surface, which abuts against the bottom surface of the multimedia key. Two opposing inner sidewalls within the limiting cylinder have limiting grooves, which engage with the limiting protrusions of the keycaps. Thus, during the spray painting and laser engraving process, the keycap's locking mechanism engages with the limiting grooves of the fixture, securing the keycap to the fixture. After securing, the bottom surface of the multimedia key abuts against the top surface of the base of the fixture, effectively blocking the keycap opening. This prevents paint from splattering into the keycap during spray painting, avoiding paint obscuring the pattern and reducing the translucency of the laser engraved pattern, thus affecting the overall product quality of the multimedia keycap.
[0017] The upper and lower ends of the inner cavity of the limiting cylinder are through, so that after processing is completed, the multimedia keypad can be removed from the fixture from the bottom of the inner cavity of the limiting cylinder, which is convenient for disassembly.
[0018] The integrated structure of the base and the limiting cylinder improves its mechanical properties, structural strength, and service life of the fixture. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the multimedia keypad in Example 1;
[0020] Figure 2 for Figure 1 A three-dimensional structural diagram of a Chinese multimedia keypad from another perspective;
[0021] Figure 3 This is a three-dimensional structural diagram of the multimedia keypad spray painting and laser engraving fixture of Example 1;
[0022] Figure 4 for Figure 3 A three-dimensional structural diagram of a multimedia keypad spray painting and laser engraving fixture from another perspective;
[0023] Multimedia key 1; Keycap 11; Ear 12; Connecting block 13; Limiting protrusion 14;
[0024] Jig body 2;
[0025] Limiting seat 3; base 31; abutment surface 311; limiting cylinder 32; limiting groove 321; guide slope 322;
[0026] Connecting bar 4;
[0027] First reinforcing rib 5; Second reinforcing rib 6;
[0028] Positioning pin 7; limiting sleeve 8; hand-held groove 9. Detailed Implementation
[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0030] In this embodiment, with Figures 1-2 Taking the multimedia key 1 as an example, the multimedia key 1 includes a keycap 11 and an ear part 12 located at the bottom of the keycap. The keycap has two oppositely arranged connecting blocks 13, and each connecting block has a limiting protrusion 14.
[0031] The multimedia keypad spray painting and laser engraving fixture of this embodiment can be found in [reference needed]. Figures 3-4 The fixture includes a main body 2, which has multiple limiting seats 3 for engaging multimedia keycaps 1. Each limiting seat 3 includes an integral base 31 and a limiting cylinder 32. The base 31 is located on the main body 2, and the limiting cylinder 32 is located at the center of the upper surface of the base 31. The surface of the upper surface of the base 31 located outside the limiting cylinder 32 is a contact surface 311, which is used to engage with the bottom surface of the multimedia keycaps 1. The upper and lower ends of the inner cavity of the limiting cylinder 32 are through-holes, and two opposite inner sidewalls of the limiting cylinder 32 are provided with limiting grooves 321, which are used to engage with the limiting protrusions of the keycaps.
[0032] When the multimedia key 1 is undergoing spray painting and laser engraving, the locking block of the multimedia key 1 engages with the limiting groove 321 of the fixture, thereby fixing the multimedia key 1 onto the fixture. After fixing, the bottom surface of the multimedia key 1 abuts against the top surface of the base 31 of the fixture, which blocks the keycap opening of the multimedia key 1. This prevents paint from splashing into the keycap during the spray painting process, avoiding paint obscuring the pattern and reducing the light transmittance of the laser engraved pattern, thus affecting the product quality of the multimedia key 1. The upper and lower ends of the inner cavity of the limiting cylinder 32 are through-through, so that after processing, the multimedia key 1 can be removed from the fixture from the bottom of the inner cavity of the limiting cylinder 32, facilitating disassembly. The base 31 and the limiting cylinder 32 are integrated into one structure, which improves its mechanical properties, structural strength, and extends the service life of the fixture.
[0033] In this embodiment, the projection of the upper surface of the base 31 covers the projection of the bottom surface of the multimedia key 1. Thus, the multimedia key 1 can be completely shielded by the upper surface of the base 31, which further prevents paint from splashing into the keycap and improves the quality of the multimedia key 1. Preferably, the projection of the upper surface of the base 31 completely overlaps with the projection of the bottom surface of the multimedia key 1.
[0034] In this embodiment, the top of the inner wall of the limiting cylinder 32 is inclined outward to form a guide slope 322. The guide slope 322 can guide the limiting protrusion of the multimedia key 1 into the limiting groove 321, which is beneficial to improving the operation speed and convenience.
[0035] In this embodiment, a through hole is cut out on the fixture body 2 at the position opposite to the corresponding limiting seat 3. A connecting strip 4 is provided between the fixture body 2 and the base 31. The two ends of the connecting strip 4 are connected to the fixture body 2 and the base 31 respectively. There are multiple connecting strips 4, which are evenly distributed and have cutouts between adjacent connecting strips 4. By using multiple connecting strips 4 to connect the base 31 to the fixture body 2, the reliability of the connection of the base 31 is ensured. During the painting process, the paint can flow out from the gap between adjacent connecting strips 4, avoiding paint accumulation on the fixture and affecting the processing effect.
[0036] In this embodiment, there are four connecting strips 4, which are arranged symmetrically at the center, thus ensuring the connection stability and reliability of the base 31.
[0037] In this embodiment, the lower surface of the fixture body 2 is provided with multiple first reinforcing ribs 5 and second reinforcing ribs 6, the first reinforcing ribs are provided between two adjacent rows of limiting seats 3, and the second reinforcing ribs are provided between two adjacent columns of limiting seats 3, which can improve the structural strength of the fixture body 2.
[0038] In this embodiment, the fixture body 2 is rectangular, with positioning posts 7 at the four corners of the upper surface and limiting sleeves 8 at the four corners of the lower surface. The limiting sleeves are positioned and engaged with the positioning posts. When the fixture is not in use, multiple fixtures can be stacked and fixed by the engagement of the positioning posts and limiting sleeves. By placing the positioning posts on the upper surface of the fixture body 2 instead of the limiting sleeves, it is possible to prevent paint spraying inside the limiting sleeves, which would cause the paint to solidify inside the limiting sleeves and affect the subsequent stacking of the fixture bodies 2.
[0039] In this embodiment, hand-held grooves 9 are provided on both sides of the lower surface of the fixture body 2, which makes it convenient for workers to hold the fixture.
[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A multimedia keypad spray painting and laser engraving fixture, characterized in that: Includes a fixture body, on which multiple limiting seats for securing multimedia keypads are provided; The limiting seat includes an integral base and a limiting cylinder. The base is mounted on the main body of the fixture, and the limiting cylinder is located at the center of the upper surface of the base. The surface of the upper surface of the base located outside the limiting cylinder is a contact surface, which is used to abut against the bottom surface of the multimedia key. The upper and lower ends of the inner cavity of the limiting cylinder are through, and two inner sidewalls with opposite positions inside the limiting cylinder are provided with limiting grooves. The limiting grooves are used to engage with the limiting protrusions of the keycaps.
2. The multimedia keypad spray painting and laser engraving fixture according to claim 1, characterized in that: The projection of the upper surface of the base overlaps the projection of the bottom surface of the multimedia keypad.
3. The multimedia keypad spray painting and laser engraving fixture according to claim 2, characterized in that: The projection of the upper surface of the base completely overlaps with the projection of the bottom surface of the multimedia keypad.
4. The multimedia keypad spray painting and laser engraving fixture according to claim 1, characterized in that: The top of the inner wall of the limiting cylinder is inclined outward to form a guide slope.
5. The multimedia keypad spray painting and laser engraving fixture according to claim 1, characterized in that: The fixture body has a hollowed-out section at the position opposite to the corresponding limiting seat; A connecting strip is provided between the main body of the fixture and the base. The two ends of the connecting strip are connected to the main body of the fixture and the base respectively. There are multiple connecting strips, which are evenly distributed and have a hollowed-out space between adjacent connecting strips.
6. The multimedia keypad spray painting and laser engraving fixture according to claim 5, characterized in that: There are four connecting strips, which are arranged symmetrically at the center.
7. The multimedia keypad spray painting and laser engraving fixture according to claim 5, characterized in that: The lower surface of the fixture body is provided with multiple first reinforcing ribs and second reinforcing ribs. The first reinforcing ribs are provided between two adjacent rows of limiting seats, and the second reinforcing ribs are provided between two adjacent columns of limiting seats.
8. The multimedia keypad spray painting and laser engraving fixture according to claim 1, characterized in that: The fixture body is rectangular, with positioning posts at the four corners of the upper surface and limiting sleeves at the four corners of the lower surface. The limiting sleeves are positioned and engaged with the positioning posts.
9. The multimedia keypad spray painting and laser engraving fixture according to claim 1, characterized in that: The fixture body has hand-held grooves on both sides of its lower surface.