Rotary Slide Transfer Layout for Compact Multi-Stage Fine Blanking

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Solution Overview

Problem

Existing devices for fine-cutting and normal punching of metal tape blanks are excessively large due to the limited space arrangement of machining tools, making them inefficient for multi-stage processing.

Innovation Solution

The use of at least two spaced, driven rotary valves with transfer openings on both sides of the metal strip, featuring cutting motion webs that allow for a larger number of cutting and machining tools to be positioned in a compact space, enabling the processing of both two-dimensional and three-dimensional workpieces without increasing the device's size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple cutting and machining tools are arranged in a conventional linear sequence, then the device can perform multi-stage processing, but the device size becomes excessively large

Engineering Contradiction:
Improvemulti-stage processing capabilityVSAvoiddevice footprint
Core Design Contradiction:
ProductivityVSArea of stationary object

Solution Approach 1:

The patent transitions from a linear one-dimensional arrangement of tools to a two-dimensional radial arrangement around a central rotary slide. Multiple cutting and machining tools are positioned at different angular positions around the rotary slide, allowing simultaneous access to blanks from multiple directions without increasing the device's linear footprint. This dimensional change enables compact integration of numerous tools while maintaining multi-stage processing capability.

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

2Area of stationary object

If the device size is reduced to accommodate more tools, then the overall footprint decreases, but the number of tools that can be positioned becomes limited

Engineering Contradiction:
Improvedevice footprintVSAvoidnumber of tools
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

By arranging tools radially around the rotary slide in a circular pattern rather than linearly, the patent maximizes the use of available space. The rotary slide's rotation enables tools positioned at various angular positions to access the blank sequentially, effectively increasing the number of tools that can be accommodated within a compact circular footprint without increasing linear dimensions.

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

Solution Approach 2:

The rotary slide serves as a universal platform that can accommodate multiple different types of cutting and machining tools at different positions. The same rotary slide structure supports various tool configurations, allowing the device to perform multiple processing operations (cutting, drilling, shaping, etc.) using a single integrated mechanism rather than requiring separate dedicated mechanisms for each operation.

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

Data Source

PatentEP3797893B1Device for the fine cutting / normal stamping of blanks made from a metal strip and for the multi-stage machining of the blanks by means of cutting and machining tools
Publication Date: 2022.03.02 METEOR UMFORMTECHN
  • EP3797893B1 patent drawingFigure 1
  • EP3797893B1 patent drawingFigure 2
  • EP3797893B1 patent drawingFigure 3

AI summary

Described and illustrated is a device for fine blanking/normal punching of blanks from a metal strip and for multi-stage processing of the blanks using cutting and processing tools, wherein the punched blanks are fed to the various processing tools on both sides of the metal strip by rotary slides having at least one transfer opening, wherein at least two spaced-apart, driven rotary slides with a plurality of transfer openings are arranged on both sides of the metal strip, wherein two transfer openings of different rotary slides have intersecting paths of motion, the intersection of the paths of motion corresponding to the transfer position of the processed blank/workpiece.