Grinding Machine Manual Infeed Mechanism for Spinning Cylinders
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Solution Overview
Problem
Existing grinding machines for spinning cylinders require trained personnel and complex control systems, making them unsuitable for smaller spinning mills and untrained operators, as they are costly and difficult to operate intuitively.
Innovation Solution
A grinding device with a manually actuated infeed system using an eccentric drive and hand levers, allowing the swivel arm to move relative to a stationary carriage, enabling intuitive operation by non-technical personnel while maintaining precise grinding results, with features like a gas pressure spring for locking positions and a stop to limit infeed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a complex control system is used to achieve precise grinding results, then manufacturing precision is improved, but device complexity increases and ease of operation deteriorates
Solution Approach 1:
The grinding machine enables the operator to perform the function of the complex control system through direct manual manipulation. The hand lever with visual feedback allows the operator to intuitively control the infeed, eliminating the need for sophisticated automated control systems while maintaining grinding precision.
Solution Approach 2:
The patent replaces complex electronic control systems with a simple mechanical hand lever mechanism. The mechanical linkage provides direct, intuitive control over the infeed process, substituting automated control technology with a straightforward mechanical operation that is easier to understand and use.
2Manufacturing precision
If automated control technology is implemented to achieve precise grinding, then manufacturing precision is improved, but ease of operation deteriorates for untrained personnel
Solution Approach 1:
The hand lever incorporates visual feedback through color changes or visual indicators that show the operator the current infeed status and grinding progress. This visual information makes the operation intuitive and self-explanatory, allowing untrained personnel to achieve consistent grinding results without complex control systems.
Solution Approach 2:
The device provides self-guiding visual cues that enable the operator to automatically achieve the correct grinding parameters without external control systems or specialized training. The visual feedback loop allows the operator to self-correct and maintain precise grinding independently.
3Productivity
If the carriage is moved continuously during grinding to advance the workpiece, then productivity is improved, but manufacturing precision deteriorates due to positioning errors
Solution Approach 1:
The grinding process is segmented into two independent functions: the carriage provides coarse positioning and support, while the hand lever provides fine, controlled infeed movement. This segmentation allows the high-precision infeed to be decoupled from the carriage positioning, eliminating the transmission of positioning errors to the grinding process.
Solution Approach 2:
The hand lever acts as an intermediary mechanism between the operator and the workpiece infeed. It provides a stable, vibration-free connection that delivers precise incremental movements independent of carriage motion, serving as a mediator that isolates the grinding process from carriage positioning inaccuracies.
4Device complexity
If a manually operated infeed device is used instead of automated control, then device complexity is reduced and ease of operation is improved, but manufacturing precision may deteriorate
Solution Approach 1:
Visual feedback indicators on the hand lever provide real-time information about the infeed status and grinding progress, enabling the operator to maintain consistent grinding quality through intuitive visual cues rather than complex control systems.
Solution Approach 2:
The hand lever incorporates visual feedback mechanisms that provide continuous information to the operator about the grinding process state. This feedback loop enables manual operators to achieve consistent precision by allowing them to see and adjust their operation in real-time without automated control.
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
Enables easy and intuitive operation by untrained workers, achieving high-quality grinding results comparable to fully automatic machines, with the ability to grind spinning cylinders to a consistent final size and preventing over-abrasion.
Implementation Method 1
a gas pressure spring, which positions the arm in its mounting position and in its grinding position
Implementation Method 2
an eccentric drive is proposed for realizing the infeed device
Implementation Method 3
a rotating grinding roller
Implementation Method 4
the grinding roller...grinding surface
Data Source
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AI summary
The machine has a pivot arm (15) supported at a carriage (2), and movable between a loading position and a grinding position, where the carriage linearly movable relative to a grinding roller (3). A feed device (30) is actuatable at a grinding surface of the grinding roller in accordance with progression of a grinding process. The pivot arm is moveable relative to the carriage by the feed device. A spindle drive (7) and a hand wheel (8) are actuatable independent of the feed device, for manual adjustment of the carriage into a desired linear position relative to the grinding roller.