Movable Front Coring Cutter for Molded Product De-coring
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Solution Overview
Problem
Existing de-coring systems for molded products with retractable handles face issues with the correct ejection of the lower core due to obstruction by the front de-carrot, leading to production defects and manufacturing losses.
Innovation Solution
A de-coring system with a movable part articulated on the frame that moves from a clipping position for the upper core to a position releasing a passage opening for the lower core's ejection, facilitated by a second actuator controlling the handle de-carrot's movement from a disengaged to an ejection position, ensuring the lower core's proper evacuation without obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the front core remover is fixed in the deployed position to trim the upper core, then the upper core removal is effective, but the lower core ejection is obstructed
Solution Approach 1:
The front core remover is made movable between a deployed position for upper core trimming and a retracted position for lower core ejection. The device is actuated by a piston-cylinder mechanism that translates the front core remover along the handle axis, allowing it to dynamically change position based on the operational phase, thus resolving the contradiction between effective upper core removal and unobstructed lower core ejection.
2Productivity
If the handle core remover is actuated to eject the lower core, then the lower core can be removed, but it may collide with the front core remover
Solution Approach 1:
The system performs preliminary action by actuating the front core remover to the retracted position before the handle core remover begins its ejection stroke. The control system coordinates the timing so that the front core remover is positioned away from the ejection path in advance, eliminating the risk of collision and allowing the lower core to be safely ejected through the internal passage.
3Manufacturing precision
If a two-stage core removal process is used, then both upper and lower cores can be addressed, but the system complexity increases
Solution Approach 1:
The system merges two separate core removal functions into a single integrated device. The front core remover and handle core remover are combined in one assembly that can perform both upper core trimming (when deployed) and lower core ejection (when retracted). This integration reduces the need for separate devices and simplifies the overall system architecture while maintaining complete core removal capability.
Data Source
Figure 1~2b
Figure 3a~3b
AI summary
The invention relates to a coring system for a molded product with a retractable handle, comprising: - a device for holding the molded product in position; - a frame, and a first actuator for the relative translational movement of the frame with respect to the holding device. The frame carries a front coring cutter integral with the frame and suitable for detaching the upper core, and a handle coring cutter. According to the invention, the front coring cutter comprises a movable part (30) articulated on the frame, configured to move from a first position suitable for trimming the upper core during a first coring step of the upper core to a second position (P32) in which the movable part provides a passage opening (Op) for the lower core to pass through during a second coring step (E2) of the lower core.