Simultaneous Cutting System for Lightweight Concrete Cakes

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Solution Overview

Problem

Existing cutting methods for lightweight concrete cakes, particularly porous or foamed concrete, face challenges in achieving short cycle times due to limitations in transverse and longitudinal cutting processes, leading to inefficiencies in production.

Innovation Solution

A cutting system with a transverse cutting device and a longitudinal cutting device, utilizing wide, U-profiled longitudinal strips and transport shafts that lift off the hardening grate, allowing for simultaneous transverse and longitudinal cutting, and featuring impact devices to close cross-sectional gaps before longitudinal cutting, enabling decoupling of cutting processes for reduced cycle times.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If sequential transverse and longitudinal cutting is used, then cutting precision is maintained, but production cycle time increases

Engineering Contradiction:
Improvecutting precisionVSAvoidproduction cycle time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The cutting system is segmented into two independent cutting units: a transverse cutting device and a longitudinal cutting device. Each device operates independently on its own cutting table, allowing simultaneous execution of transverse and longitudinal cutting operations without interfering with each other's precision requirements.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from sequential cutting in one dimension at a time to parallel cutting operations in two dimensions simultaneously. The transverse cutting device works on the transverse dimension while the longitudinal cutting device works on the longitudinal dimension at the same time, effectively utilizing both spatial dimensions for parallel processing.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Manufacturing precision

If impact devices are used to close cross-sectional gaps, then longitudinal cutting quality improves, but device complexity increases

Engineering Contradiction:
Improvelongitudinal cutting qualityVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The transverse cutting table serves multiple functions: it acts as both the cutting surface for transverse cutting operations and as the support structure (replacement for impact devices) during longitudinal cutting. This multi-functionality eliminates the need for separate impact devices while maintaining longitudinal cutting quality.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the function of impact devices into the transverse cutting table structure. The transverse cutting table is designed to provide both cutting functionality and gap-closing support functionality, combining what were previously separate components into a single integrated structure.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If transport shafts lift off the hardening grate, then cutting accessibility improves, but device complexity increases

Engineering Contradiction:
Improvecutting accessibilityVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The transport shafts are designed with dynamic movement capability, allowing them to be lifted off the hardening grate when needed. This dynamic adjustment provides flexible accessibility for cutting operations while maintaining the transport function when the shafts are in position, adapting the system state based on operational requirements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3050688B1Cutting method and cutting system for longitudinal and transverse cutting of cut-resistant lightweight concrete cakes, in particular porous or foam concrete cakes, and method and device for producing lightweight concrete moulds, in particular porous or foam concrete moulds
Publication Date: 2019.11.27 XELLA BAUSTOFFE
  • EP3050688B1 patent drawingFigure 1
  • EP3050688B1 patent drawingFigure 2
  • EP3050688B1 patent drawingFigure 3

AI summary

The present invention relates to a cutting method and a cutting system (6) for transverse and longitudinal cutting of a green or plastic or cut-resistant lightweight concrete cake (8), in particular a porous or foam concrete cake, into lightweight concrete molded bodies (50), in particular porous or foam concrete molded bodies, as well as a method and a device for producing lightweight concrete molded bodies (50), in particular porous or foam concrete molded bodies.