Laminated Core Punching Apparatus Synchronization Without Accumulator
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Solution Overview
Problem
Conventional laminated core punching apparatuses require an accumulator to synchronize the operation of rotor-punching and stator-punching press machines, leading to increased size and instability due to the need for speed adjustments and stoppage timing deviations, making it difficult to achieve high-speed operation without an accumulator.
Innovation Solution
The apparatus includes two rotor and two stator lamination stations with synchronized punching operations, an intermediate loop portion for adjusting strip-form steel plate length, and a loop guide portion that can ascend and descend to maintain loop stability, allowing for high-speed operation without an accumulator by ensuring continuous strip-form steel plate supply and synchronized machine operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an accumulator is used to synchronize rotor-punching and stator-punching press machines, then stoppage timing deviation is absorbed, but the apparatus size increases and operation stability deteriorates at high speeds
Solution Approach 1:
The patent removes the accumulator component entirely from the system. Instead of using an accumulator to absorb timing deviations, the invention synchronizes the rotor-punching and stator-punching press machines through direct mechanical coupling or coordinated control, eliminating the need for the accumulator and thus reducing apparatus size while maintaining synchronization reliability
Solution Approach 2:
The patent merges the timing synchronization function into the press machines themselves through mechanical coupling or integrated control systems. By combining the synchronization mechanism with the press machines directly, the system eliminates the separate accumulator component, reducing overall apparatus size while maintaining reliable synchronization
2Productivity
If the strip-form steel plate speed is increased for high-speed operation, then productivity improves, but running condition stability deteriorates
Solution Approach 1:
The patent employs dynamic speed control mechanisms that adjust the strip-form steel plate feed rate in real-time based on the punching cycle requirements. This dynamic adjustment allows the system to maintain high average speeds for improved productivity while ensuring stable running conditions during critical punching operations, resolving the contradiction between speed and stability
3Reliability
If the accumulator size is increased to store more strip-form steel plate, then stoppage timing deviation is better absorbed, but device complexity and size increase
Solution Approach 1:
The patent extracts and removes the accumulator component from the system entirely. By eliminating the accumulator, the invention simplifies the device structure while maintaining timing synchronization through direct mechanical coupling or coordinated control of the press machines, thus resolving the contradiction between timing deviation absorption and device complexity
Data Source
AI summary
A laminated core punching apparatus, configured such that a stator-punching press machine that has a molding die performing a partial punching gradually approaches the shape of the stator core piece. There is a punching die to punching out the stator core piece from a strip-form steel plate, and two stator lamination stations. A rotor-punching press machine and a stator-punching press machine are constructed to operate synchronously. An intermediate loop portion capable of causing a strip-form steel plate to hang down in a loop is provided in order to adjust a length of the strip-form steel plate between the two press machines, and a loop guide portion that guides a loop locus of the strip-form steel plate from above so that the strip-form steel plate does not invert is disposed above the intermediate loop portion to be capable of ascending and descending.