Concrete Mould Pressure Plate Alignment Using Tilting Lower Mould
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Solution Overview
Problem
Conventional molding machines face issues with damage to pressure plates due to improper alignment between the upper and lower mold parts, leading to potential collisions and wear, particularly in fine structures like indentations or chamfers.
Innovation Solution
A guide mechanism that allows the lower mold part to tilt relative to the upper mold part by up to 2°, providing a self-adjusting alignment that minimizes contact and wear by allowing a degree of freedom in movement, using guide elements like circular cylindrical pins and bushings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If rigid alignment between upper and lower mold parts is used, then manufacturing precision is improved, but device complexity increases and wear occurs in fine structures
Solution Approach 1:
The patent applies the dynamics principle by allowing the lower mold part to tilt dynamically within a controlled range (up to 2 degrees) relative to the upper mold part. This is achieved through a guide mechanism with cylindrical pins and bushings that provide rotational freedom while maintaining alignment. The system transitions from static rigid alignment to dynamic adaptive alignment, resolving the contradiction between precision and complexity.
Solution Approach 2:
The patent changes the alignment parameter from fixed zero-degree alignment to variable alignment within ±2 degrees. This parameter change allows the mold parts to self-adjust during operation, maintaining manufacturing precision while simplifying the alignment mechanism. The guide elements enable this parameter change through their geometric design.
2Manufacturing precision
If rigid alignment is enforced, then manufacturing precision is improved, but pressure plates suffer from collision and wear
Solution Approach 1:
The lower mold part is designed to tilt dynamically within a controlled range (up to 2 degrees) relative to the upper mold part through a guide mechanism with cylindrical pins and bushings. This dynamic adjustment prevents rigid collisions between pressure plates and mold surfaces, reducing wear and improving reliability while maintaining manufacturing precision.
Solution Approach 2:
The guide mechanism with cylindrical pins and bushings acts as a cushioning element that absorbs misalignment and prevents direct collision between pressure plates and mold surfaces. This beforehand cushioning protects the pressure plates from damage while allowing necessary movement.
3Manufacturing precision
If precise rigid alignment is used, then manufacturing precision is improved, but fine structures experience increased wear
Solution Approach 1:
The lower mold part can tilt dynamically within a controlled range (up to 2 degrees) relative to the upper mold part through guide elements consisting of cylindrical pins and bushings. This dynamic capability reduces contact stress and wear on fine structures like indentations and chamfers during operation, extending the service life of pressure plates while maintaining manufacturing precision.
Solution Approach 2:
The alignment parameter is changed from fixed to variable within ±2 degrees, allowing the system to adapt during operation. This parameter change reduces wear on fine structures by distributing contact forces more evenly, thereby extending the duration of action of the stationary objects.
Data Source
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AI summary
A device (VO) for the production of concrete moldings in a molding machine is specified, which comprises an upper mold part (FB) with at least one pressure ram (DS) for transmitting a force to at least one pressure plate (DP), the pressure plate (DP) being vertical direction can be inserted into an opening of a mold cavity in a lower mold part (FU), the lower mold part (FU) being surrounded by a frame (RA) which has guide means (FM) connected to the upper mold part (FB) and designed in such a way that the lower mold part (FU) can be tilted against the upper mold part (FB) from the vertical direction while the pressure plates (DP) engage in the openings of the mold cavity.