Drag Finishing Machine Liquid Agent Control
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Solution Overview
Problem
Existing drag and/or dip finishing machines face challenges in efficiently managing the liquid machining agent during wet machining, leading to contamination, sticky deposits, and the need for frequent agent exchange, especially when using plastics granules, which complicates the process and requires machine interruptions for agent evacuation and quantity control.
Innovation Solution
A drag and/or dip finishing machine design featuring a chamber around the container's periphery with a liquid discharge unit allows for continuous or intermittent exchange of the machining agent without interrupting the process, using fluidic connections and centrifugal forces to control the agent's quantity, and includes a feed device for adding fresh agent and a cleaning system for recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the container is rotationally driven to enable continuous machining, then productivity is improved, but controlling the liquid machining agent quantity becomes difficult leading to contamination and sticky deposits
Solution Approach 1:
The container is divided into a working chamber for machining and a storage chamber for liquid machining agent, allowing independent control of each function. The working chamber can be rotated for continuous machining while the storage chamber remains stationary for controlled agent dispensing, preventing contamination and sticky deposits.
Solution Approach 2:
A controlled connection channel with a valve is introduced as an intermediary between the storage chamber and working chamber. This valve acts as a mediator to regulate the flow of liquid machining agent, enabling precise quantity control and preventing excess agent from causing contamination and sticky deposits during continuous rotational machining.
2Manufacturing precision
If the machining agent is exchanged frequently to reduce contamination, then machining quality is improved, but machine interruptions increase reducing productivity
Solution Approach 1:
The system enables continuous machining by providing a controlled supply of fresh liquid machining agent during the machining process. The valve-controlled connection allows the working chamber to receive fresh agent continuously or intermittently without stopping the rotation, maintaining machining quality while avoiding interruptions that would reduce productivity.
3Duration of action of moving object
If the container volume is increased to hold sufficient machining agent, then duration of action is improved, but device complexity and space requirements increase
Solution Approach 1:
The container is segmented into two functional chambers: a working chamber for active machining and a storage chamber for holding liquid machining agent. This segmentation allows the storage chamber to be sized appropriately for the required duration of action without making the entire container excessively large or complex, as each chamber serves a specific purpose.
Solution Approach 2:
The storage chamber serves multiple functions: storing liquid machining agent, controlling its flow to the working chamber, and maintaining a reservoir for extended machining cycles. This multi-functionality extends the duration of action without requiring a single large complex container, as the segmented design allows efficient space utilization.
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 continuous surface machining with controlled liquid agent quantities, reducing contamination and sticky deposits, allowing for seamless agent exchange and regulation without machine interruptions, improving machining efficiency and reducing maintenance time.
Implementation Method 1
at least on a lower portion of this same, the chamber being equipped with a liquid discharge unit in order to be able to discharge the machining agent from the chamber in the event of an excess of machining agent in the container
Data Source
AI summary
A drag and/or dip finishing machine has at least one workpiece holder for the releasable fastening of the workpieces to be machined and a container, disposed beneath the workpiece holder, for accommodating the grinding and/or polishing granules, wherein the workpiece holder and the container are movable relative to each other in that at least the container is rotationally driven. The container has a chamber, which extends around the whole of the periphery thereof and is fluidically connected to the inside, accommodating the grinding and/or polishing granules, of the container, at least on a lower portion thereof, the chamber being equipped with a liquid discharge unit in order to be able to discharge the machining agent from the chamber in the event of an excess of machining agent in the container.