Mobile Phone Case White Printing With Shielded Spray Range
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Solution Overview
Problem
Existing mobile phone case spraying devices lack effective protective measures to limit and isolate the paint spraying range, leading to paint being sprayed onto larger areas of other components, increasing cleaning difficulty and reducing the effectiveness of printing patterns due to color similarity.
Innovation Solution
A mobile phone case with a white printing area and a printing device featuring a shielding assembly with protective covers and a triple-nozzle tube system, which includes a replacement assembly for easy nozzle replacement, ensuring precise and controlled paint application and minimizing contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If protective measures are added to limit paint spraying range, then paint spillage is reduced, but device complexity increases
Solution Approach 1:
A shielding assembly is introduced as an intermediary component between the spray gun and surrounding components. This assembly includes a shield body positioned between the spray gun and other parts, effectively blocking paint from reaching unwanted areas while maintaining a relatively simple overall device structure.
Solution Approach 2:
The shielding function is extracted as a separate, removable assembly that can be independently installed and maintained. This allows the protective function to be added without permanently complicating the core spraying mechanism, and the shield can be removed or adjusted when not needed.
2Ease of manufacture
If shielding assembly is added to protect components, then cleaning difficulty is reduced, but device complexity increases
Solution Approach 1:
The shielding assembly serves as a protective intermediary that prevents paint contamination of surrounding components. By containing the spray within a defined area, it dramatically reduces cleaning requirements and effort, while the shield itself can be easily removed or cleaned as a separate component.
Solution Approach 2:
The shielding assembly converts the potentially harmful spread of paint into a contained, controlled spraying process. The shield redirects or blocks paint that would otherwise contaminate surrounding areas, turning a problematic spray pattern into a beneficial containment feature that simplifies cleaning.
3Manufacturing precision
If white printing area is created, then pattern printing effectiveness is improved, but manufacturing process complexity increases
Solution Approach 1:
A white background layer is applied to the mobile phone case before the pattern printing process. This preliminary action creates a high-contrast foundation that significantly improves the visibility and effectiveness of subsequent pattern printing, while the white background material can be applied through the existing spraying mechanism without adding complex equipment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively limits paint spray to the mobile phone case surface, enhances pattern fidelity, and simplifies nozzle replacement, improving cleaning efficiency and production quality.
Implementation Method 1
a bottom of the workbench is fixedly connected to a motor, an output end of the motor is fixedly connected to a gear, one side of the sliding block is fixedly connected to a rack, and the rack is meshed with the gear
Implementation Method 2
a bottom of the workbench is fixedly connected to a motor, an output end of the motor is fixedly connected to a gear, one side of the sliding block is fixedly connected to a rack, and the rack is meshed with the gear
Implementation Method 3
a bottom of either of the baffles is fixedly connected to a spring
Implementation Method 4
a triple-nozzle tube is arranged at a bottom of the conveying tube
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is a mobile phone case (26) with a white printing area and a printing device for same, including a mobile phone case and a workbench (1). A top of the mobile phone case is fixedly connected to a spraying panel (27). An inner wall of the workbench (1) is fixedly connected to a placement table, the placement table provides a placement area for the mobile phone case, a shielding assembly (13) is arranged inside the workbench (1), a top of the workbench is fixedly connected to a raw material box (2), the raw material box (2) is internally fixedly connected to a conveying tube (4), a triple-nozzle tube (16) is arranged at a bottom of the conveying tube (4), and an outer wall of the triple-nozzle tube is provided with a replacement assembly. Protective covers (13) on both sides limit and isolate a spraying range of an outer wall of the mobile phone case.