Cutting Device Segmented Guide Mechanism Reduces Load

Solution Overview

Problem

Existing cutting devices apply a large load to the cutting blade movement means, necessitating high rigidity and increased size, which is inefficient and costly.

Innovation Solution

A cutting device configuration where the cutting mechanism moves vertically along a guide, with a drive device moving the guide horizontally to position the cutting mechanism, allowing the cutting blade to press down and cut the object without applying a large load to the drive device, thus eliminating the need for increased rigidity and size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the entire cutting device excluding the reception base moves to perform cutting, then cutting function is achieved, but large load is applied to the cutting blade movement means requiring high rigidity and increased size

Engineering Contradiction:

Improvecutting functionVSAvoiddevice size

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The cutting device is segmented into a stationary body and a movable cutting mechanism. The cutting mechanism including the blade is separated from the main device body, allowing it to move independently along guides while the reception base remains stationary. This segmentation enables the cutting function without requiring the entire device to move, thus avoiding the need for high rigidity and large size in the movement means.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of moving the entire cutting device to perform cutting, the invention inverts the approach by keeping the reception base stationary and moving only the cutting mechanism along fixed guides. This inversion eliminates the need for the device to move its own weight, significantly reducing the load on movement means and allowing for more compact design.

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If the entire cutting device excluding the reception base moves to perform cutting, then cutting function is achieved, but large load is applied to the cutting blade movement means requiring high rigidity

Engineering Contradiction:

Improvecutting functionVSAvoidrigidity of movement means

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The cutting device is segmented into a stationary body and a movable cutting mechanism. The cutting mechanism including the blade is separated from the main device body, allowing it to move independently along guides while the reception base remains stationary. This segmentation enables the cutting function without requiring the entire device to move, thus avoiding the need for high rigidity and large size in the movement means.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of moving the entire cutting device to perform cutting, the invention inverts the approach by keeping the reception base stationary and moving only the cutting mechanism along fixed guides. This inversion eliminates the need for the device to move its own weight, significantly reducing the load on movement means and allowing for more compact design.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS11090827B2Cutting device

Publication Date: 2021.08.17 MURATA MFG CO LTD

AI summary

A cutting device includes a guide extending in a vertical direction, a cutting mechanism that includes a cutting blade and that moves in the vertical direction along the guide, a drive device that moves the cutting mechanism in a horizontal direction by moving the guide in the horizontal direction, a pressing device that presses the cutting mechanism from above, and a reception base on which a cutting object is placed and that receives the cutting blade during the cutting movement. During cutting of the cutting object, the cutting mechanism pressed by the pressing device is moved downward along the guide and cuts the cutting object placed on the reception base with the cutting blade.