Spring-Loaded Roller Tape Dispenser for Rounded Shaft Masking
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Solution Overview
Problem
Automotive vehicle seat structures with elongated rounded metal parts face challenges in masking or concealing these components to prevent paint, coating, or weld splatter contamination, as existing methods are time-consuming and difficult to apply consistently, especially on rounded surfaces.
Innovation Solution
A tape dispenser device with a pair of spools and a spring mechanism that forms a claw with rollers, allowing for efficient application and retraction of perforated tape to cover rounded surfaces, ensuring consistent coverage and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual masking methods are used on rounded surfaces, then tape can be applied to prevent contamination, but the process becomes time-consuming and difficult to apply consistently
Solution Approach 1:
The device allows the rounded shaft to automatically guide the tape application process. As the shaft passes through the device, the tape is automatically wrapped around it by the rollers and spring mechanism, eliminating the need for manual positioning and wrapping operations. The shaft itself serves as the guiding element that determines the exact placement and coverage of the tape.
Solution Approach 2:
The device incorporates movable rollers that can rotate and adjust their position dynamically. The spring-loaded mechanism allows the rollers to flex and adapt to the diameter of different shafts, enabling consistent tape application across varying rounded surfaces without requiring manual adjustment of each component.
2Manufacturing precision
If traditional masking methods are used, then coverage can be achieved, but the operation becomes difficult and labor-intensive
Solution Approach 1:
The rounded shaft automatically guides the tape through the device and around itself. The shaft's geometry determines the exact path and coverage of the tape, eliminating the need for operators to manually position or shape the masking material. The system uses the workpiece itself as the guiding mechanism.
Solution Approach 2:
The rollers act as intermediary elements between the tape supply and the shaft. These rollers facilitate the transfer and wrapping of tape around the shaft by rotating in response to the shaft's passage, providing a mechanical mediation that simplifies the operation while ensuring consistent coverage.
3Reliability
If tape is applied manually to rounded components, then masking can be achieved, but the process requires significant labor and time
Solution Approach 1:
The device transforms the manual process into an automated one where the shaft's passage through the device automatically triggers the tape application. The system serves itself by using the workpiece's movement to drive the masking operation, eliminating the need for separate manual wrapping operations.
Solution Approach 2:
The tape is pre-positioned on the supply spool and fed through the device in advance. The spring mechanism is pre-loaded to provide the necessary tension and wrapping force. When the shaft passes through, all the masking action is already prepared and ready to execute automatically, eliminating the need for real-time manual adjustments during the process.
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 device enables quick and consistent application of tape to rounded surfaces, preventing contamination and simplifying the masking process, thereby improving efficiency and reducing labor in preparing vehicle seat structures for painting.
Implementation Method 1
The spring is preferably arranged to form a claw having two distal ends biased towards each other. The distal ends may each include a roller rotatably attached thereto. The spring may be configured to open responsive to a force on the roller resulting from a shaft coming between the roller
Implementation Method 2
The distal ends may each include a roller rotatably attached thereto. The spring may be configured to open responsive to a force on the roller resulting from a shaft coming between the roller such that the rollers rotate to travel around the shaft to apply the tape
Data Source
AI summary
A tape dispenser is disclosed. The tape dispenser may include a pair of spools that are configured to carry tape and a spring disposed between the spools. The spring is preferably arranged to form a claw having two distal ends biased towards each other. The distal ends may each include a roller rotatably attached thereto. The spring may be configured to open responsive to a force on the roller resulting from a shaft coming between the rollers such that the rollers rotate to travel around the shaft to apply the tape.