Cutting Equipment for Multi-Row Paper Strips with Variable Image Lengths

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Solution Overview

Problem

Current cutting equipment for continuous paper strips with images arranged in multiple rows is inefficient in handling images with varying lengths, leading to significant paper waste, especially when processing 'panoramic' images with a strong length-to-width ratio.

Innovation Solution

The equipment employs a longitudinal cutting mechanism, a transversal cutting mechanism, and individual feeding mechanisms, along with a buffer device and electronic control unit, to independently feed and align image sheets with different lengths, enabling simultaneous cutting and minimizing waste by compensating for varying row feeds and using machine-readable codes for precise cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If simultaneous cutting of multiple rows is used to increase productivity, then cutting speed is improved, but paper waste increases when images have different lengths

Engineering Contradiction:
Improvecutting speedVSAvoidpaper waste
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The cutting system is divided into multiple independent cutting units (first cutting unit, second cutting unit, third cutting unit) that can operate independently on different rows. Each cutting unit has its own cutting blade and control mechanism, allowing selective cutting of individual rows based on image length requirements while maintaining high-speed simultaneous cutting capability across multiple rows.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the operation of each cutting unit based on real-time detection of image lengths. The control unit enables or disables specific cutting units according to the detected image dimensions in each row, allowing the system to adapt to varying image lengths while maintaining overall high productivity through parallel processing of multiple rows.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If images of different lengths are processed in the same row sequence, then versatility is improved, but cutting precision becomes difficult to maintain

Engineering Contradiction:
Improveimage size variation handlingVSAvoidcutting alignment
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system incorporates detection units that read identification marks or codes on the paper strip to detect the length of images in each row. This feedback information is transmitted to the control unit, which then adjusts the cutting parameters and selects which cutting units to activate, ensuring precise cutting alignment even when images have different lengths across multiple rows.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system replaces mechanical measurement and alignment methods with optical/electronic detection of identification marks and computer-controlled cutting mechanisms. This substitution allows for precise positioning and cutting of images with varying lengths by using digital control signals rather than mechanical alignment, thereby maintaining cutting precision while handling versatile image dimensions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10259675B2Cutting equipment and method for continuous paper strips with images arranged along multiple rows
Publication Date: 2019.04.16 TECNAU
  • US10259675B2 patent drawing
  • US10259675B2 patent drawing
  • US10259675B2 patent drawing

AI summary

A cutting equipment for continuous paper strips having images arranged in sequence along multiple rows comprising a longitudinal cutting mechanism for separating the rows from the strips and a transversal cutting mechanism for separating image sheets from the rows and in which the image sheets have different longitudinal dimensions and possibility of random variations between row and row, The equipment further comprises individual feeding mechanisms for feeding, in an independent way, the rows with respect to the transversal cutting mechanism; a buffer device, of compensation for the different feeds of the rows, and an electronic control unit for actuating the feeding mechanisms and the transversal cutting mechanism so as to present the trailing edges of said image sheets in alignment for a simultaneous cutting by the transversal cutting mechanism and extracting one or more images from the cutting mechanism, after its actuation, as preparation of collecting.