Strip Cutting Support Pivoting for Precise Conveyor Deposition

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Solution Overview

Problem

Existing cutting devices for strip materials, such as steel or textile cords, face challenges in achieving high precision when depositing cut sections onto a conveyor belt due to a relatively large distance between the lower blade and the removal belt, leading to limited accuracy for subsequent processing steps.

Innovation Solution

A cutting device with a two-part support component, where the first component section is pivotable about a first axis between a horizontal and an angled position, and the second component section is pivotable about a second axis, allowing independent pivoting to minimize the fall height of cut material sections by adjusting the position of the upper run of the conveyor belt relative to the cutting edge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a single support component is used to hold the conveyor belt, then the structure is simple, but the ability to independently adjust different sections of the belt is limited, reducing precision in material placement

Engineering Contradiction:
Improveprecision of material placementVSAvoidcomplexity of support component
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The support component is divided into a first component section and a second component section, which can be independently pivoted about different axes. This segmentation allows each section to be adjusted independently to optimize the belt position relative to the cutting edge, thereby improving material placement precision while maintaining manageable structural complexity through modular design

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If the upper run of the conveyor belt is positioned closer to the cutting edge to reduce fall height, then material placement accuracy improves, but the risk of contact between the belt and upper blade increases

Engineering Contradiction:
Improveaccuracy of depositing material sectionsVSAvoidcontact between belt and upper blade
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The support component is designed to be dynamically adjustable, allowing the upper run of the conveyor belt to be positioned at different angles and heights. During operation, the belt can be raised to a first angle to reduce fall height and improve placement accuracy, then lowered to a second angle to prevent contact with the upper blade, thus dynamically resolving the contradiction between precision and safety

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the support component is positioned at a fixed angle to the horizontal, then the structure is simple, but the ability to adapt to different cutting positions is limited

Engineering Contradiction:
Improveadaptability to different cutting positionsVSAvoidcomplexity of adjusting device
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The support component incorporates pivoting mechanisms that allow it to assume different angular positions relative to the horizontal. The first component section can be pivoted about a first axis, and the second component section can be pivoted about a second axis, enabling the system to adapt to various cutting positions and configurations while maintaining a relatively simple mechanical structure

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustable support component serves multiple functions: it can position the conveyor belt at optimal angles for different cutting operations, adjust the distance between the belt and cutting edge, and prevent belt-blade contact. This multi-functionality increases adaptability without proportionally increasing device complexity

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

Data Source

PatentEP3613572B1Cutting device for cutting strip material and method for operating a cutting device
Publication Date: 2021.05.26 FISCHER TIRETECH GERMANY GMBH
  • EP3613572B1 patent drawingFigure 1~2
  • EP3613572B1 patent drawingFigure 3
  • EP3613572B1 patent drawingFigure 4~5

AI summary

The invention relates to a cutting device (10) for cutting strip material (38), wherein the cutting device (10) comprises a knife arrangement (12) comprising a movable upper knife (14), a stationary lower knife (16), and a drive device (62) for moving the upper knife (14). An adjustment device (22) is arranged in the area of ​​the knife arrangement (12) and has a support component (40) arranged below the strip (18), the support component (40) holding the strip (18). The support component (40) has a first component section (42) associated with the rear cutting area (58) and a second component section (44) associated with the front cutting area (56), wherein the first component section (42) is pivotable about a first axis (28) between a position at the first angle (11) to the horizontal and a substantially horizontal position.The second component section (44) is pivotable relative to the first component section (42) about a second axis (50).