Tattooing Apparatus Cam Mechanism Linear Needle Control
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Solution Overview
Problem
Conventional tattooing apparatuses face issues with ink leakage due to large ink holes, non-linear needle reciprocation causing skin damage and pain, and mechanical inefficiencies leading to vibration and precision problems.
Innovation Solution
A tattooing apparatus with a motor-driven cam unit converting rotational motion into linear reciprocation, a needle cartridge with an ink-storing portion and a slider system that prevents ink leakage, and a cam follower aligned with the needle for precise linear motion, minimizing vibration and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the ink hole has a large diameter to allow easy ink supply, then the ink-storing portion can be filled quickly, but the tattooing ink may flow over through the ink hole when the body portion is slightly inclined
Solution Approach 1:
A valve member is introduced as an intermediary component between the ink reservoir and the ink hole. The valve member includes a valve body with a valve hole and a movable valve element that controls ink flow. This mediator allows ink to be supplied when needed while preventing unintended leakage, resolving the contradiction between easy ink supply and preventing ink overflow.
2Extent of automation
If the tattooing needle is advanced by a motor and withdrawn by a spring, then the needle can reciprocate automatically, but when the spring loses elasticity due to long-term usage, the needle may not be withdrawn or takes time to withdraw
Solution Approach 1:
The spring-based mechanical withdrawal system is replaced with a motor-driven system. The motor includes a drive mechanism that can actively control both the advancement and withdrawal of the needle. This substitution eliminates the reliability issues associated with spring fatigue while maintaining automatic reciprocation, as the motor can consistently provide the necessary force for needle movement in both directions.
3Productivity
If the tattooing needle reciprocates in a non-linear direction, then the needle can be inserted and withdrawn automatically, but the advance trace and withdraw trace are different, causing skin damage and pain
Solution Approach 1:
The needle reciprocation mechanism is designed with dynamic control to ensure linear motion. The drive mechanism includes guide structures and positioning elements that constrain the needle to move strictly along a vertical axis during both advancement and withdrawal. This dynamic control ensures that the advance trace and withdraw trace coincide, preventing skin damage while maintaining automated high-speed operation.
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
Ensures precise, pain-reduced tattooing with reduced ink leakage and minimal vibration, allowing for efficient and accurate tattooing by maintaining consistent needle trace and ink supply.
Implementation Method 1
a cam unit to convert a rotational movement of the motor into a linear reciprocating movement
Data Source
AI summary
The present invention relates to a tattooing apparatus having a tattooing needle capable of automatically reciprocating in a linear direction. The tattooing apparatus according to the present invention includes a case, a motor disposed inside the case, a cam unit to convert rotation of the motor into linear reciprocation, a link connected to the cam unit and disposed inside the case to be linearly reciprocated by the cam unit, and a needle cartridge that is connected to a lower end of the case and has a tattooing needle to move according to the link and a tattooing ink to flow out along the tattooing needle.