Core Puller Device Neutralizing Connection for Uniform Packing
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Solution Overview
Problem
Conventional core puller devices for block machines introduce one-sided force components during packing, leading to non-uniform material distribution and increased risk of density variations, height discrepancies, and surface cracks in shaped stones, which dampers fail to completely eliminate.
Innovation Solution
The core puller device temporarily neutralizes the operative connection between the sliding facility and core pullers, allowing them to move symmetrically within the stone mould, reducing one-sided force components and ensuring uniform vibration during packing, with adjustable clearance and abutments to facilitate efficient insertion and retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the core puller is firmly and permanently connected to the sliding facility for quick and safe insertion and removal, then the ease of operation is improved, but non-uniform packing and material distribution occur during the packing operation
Solution Approach 1:
The core puller device employs a dynamic connection system where the core puller can be temporarily attached to and detached from the sliding facility. This dynamic configuration allows the core puller to be firmly connected during insertion and removal operations for ease of operation, while being detachable during packing operations to eliminate harmful force components and achieve uniform material distribution.
2Reliability
If the core puller is permanently attached to the sliding facility, then the reliability of insertion and removal is improved, but harmful force components cause non-uniform packing and potential defects
Solution Approach 1:
The core puller device is segmented into separate functional components: the sliding facility for insertion/removal operations and the core puller for packing operations. This segmentation allows the core puller to be detached from the sliding facility during packing, eliminating the transmission of harmful one-sided force components while maintaining reliable insertion and removal capabilities when connected.
3Manufacturing precision
If dampers are added to the core puller device to reduce vibrations during packing, then the manufacturing precision is improved, but the complexity of the device increases
Solution Approach 1:
Instead of adding dampers to mitigate vibrations, the invention extracts the source of the problem by completely detaching the core puller from the sliding facility during packing operations. This eliminates the transmission of harmful force components and vibrations without adding any damping components, thereby improving packing uniformity while avoiding increased device complexity.
Data Source
AI summary
A core puller device for a block machine, a block machine with such a device as well as a method for the preparation of shaped stones in which at least one core puller arranged on the sliding facility of the core puller device is temporarily inserted into a stone mould of the block machine and retracted after a packing operation in the block machine are provided. Here, the core puller device is constructed or the method is configured such that the operative connection between the at least one core puller and the sliding facility of the core puller device is temporarily neutralized.