Rotating Lower Plate Blanking Press for Efficient Mold Cleaning
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Solution Overview
Problem
Existing blanking press cleaning methods are inefficient, particularly for large rough pieces, as they fail to effectively remove residues from mold cavities and require significant downtime and additional space, with existing solutions either not ensuring optimal cleaning or increasing machine footprint and downtime.
Innovation Solution
A blanking press with a lower plate that rotates about a horizontal axis within the working region, allowing for an overturned configuration for enhanced cleaning without increasing machine footprint, using a motor-reducer system and balancing elements to manage high loads and facilitate intermediate positions, and incorporating blowing elements for effective residue removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If blowing air or pressurized fluids is used to clean the lower half-mold, then cleaning is performed quickly, but optimal cleaning is not achieved especially when blanked rough pieces are large
Solution Approach 1:
The lower plate is made movable through rotation about a horizontal axis, transitioning from a static position during blanking to a tilted position during cleaning. This dynamic reconfiguration allows gravity to assist the blowing elements in removing residues from mold cavities, achieving both quick and effective cleaning without increasing machine footprint.
2Reliability
If the lower plate is moved outside the blanking press for cleaning, then cleaning effectiveness is improved, but machine footprint increases
Solution Approach 1:
Instead of moving the lower plate horizontally outside the press, the invention utilizes vertical dimension by tilting the lower plate about a horizontal axis. This rotational movement repositions the mold cavities to facilitate gravity-assisted cleaning while keeping the entire mechanism within the existing machine footprint.
3Reliability
If the lower plate is translated outside and inside the blanking press, then cleaning access is improved, but machine downtime increases
Solution Approach 1:
The lower plate is tilted to the cleaning position immediately after the blanking operation completes, without requiring translation outside the press. This preliminary repositioning enables cleaning to begin without delay, and the plate returns to the working position directly after cleaning, minimizing machine downtime while ensuring effective cleaning access.
4Ease of operation
If common rotation systems with hydraulic or pneumatic cylinders are used to tilt the lower plate, then rotation is achieved, but intermediate positions between working and tilted cannot be maintained
Solution Approach 1:
The rotation system incorporates a positioning mechanism that allows the lower plate to be held at various intermediate angles between the horizontal working position and the tilted cleaning position. This enables flexible operation where the plate can be stopped at any angle during the tilting process, providing adaptability for different cleaning requirements and improving ease of 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
The solution enables efficient cleaning of mold residues within the same footprint, reducing machine downtime and allowing simultaneous piece extraction, with the ability to manage high loads and maintain durability, while preventing residue dispersal within the press.
Implementation Method 1
a common solution is to clean the lower half-mold by blowing air or pressurized fluids
Data Source
Figure 1~2
Figure 3~4
Figure 5a
AI summary
A blanking press (1) comprises a frame (3), a lower plate (12) whereupon the lower half-mold (22) is accommodated and an upper plate (11) whereupon the upper half-mold (21) is accommodated. The lower plate (12) is movable in rotation about a horizontal axis (X-X) contained within the working region (L).