Can Barrel Routing Layout for Continuous Plain Can Production

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Solution Overview

Problem

The existing can body manufacturing systems face productivity issues due to the need to stop the manufacturing line when changing settings on the printing machine, which delays the production of plain cans.

Innovation Solution

A can body manufacturing system that includes a can barrel forming apparatus, a printing apparatus, and a branch conveyor with a flow path switching unit, allowing for the simultaneous production of printed and plain cans by routing can barrels to either the printing apparatus or a bypass conveyor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the printing machine setting is changed to print for another product, then the printing apparatus can produce different printed cans, but the manufacturing line must be stopped, resulting in lower productivity

Engineering Contradiction:
Improveprinting machine adaptabilityVSAvoidmanufacturing line productivity
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The manufacturing line is segmented into two independent paths: a printed can manufacturing section with the printing apparatus and a plain can manufacturing section with the bypass inlet conveyor. This segmentation allows each path to operate independently, so when the printing apparatus stops for setting changes, the plain can manufacturing section can continue operating without interruption.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The branch conveyor with flow path switching unit acts as an intermediary between the can barrel forming apparatus and the two manufacturing sections. It dynamically routes can barrels to either the printing apparatus or the bypass inlet conveyor based on production requirements, enabling flexible switching between printed and plain can production without stopping the entire line.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If the printing apparatus is used for printed cans, then printed cans with protective finishing varnish can be produced, but the process requires additional equipment and time

Engineering Contradiction:
Improveprinting qualityVSAvoidmanufacturing system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The can barrel forming apparatus is designed to be universal and can supply can barrels to both the printed can manufacturing section and the plain can manufacturing section. The branch conveyor with flow path switching capability provides multi-functionality by routing can barrels to different destinations based on the desired product type, allowing one forming apparatus to serve dual purposes.

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

Solution Approach 2:

The branch conveyor incorporates a dynamic flow path switching unit that can change routing in real-time based on production demands. This dynamic capability allows the system to flexibly adjust between producing printed cans and plain cans without requiring separate dedicated forming apparatus for each product type.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4516422A1Can body manufacturing system and method for manufacturing can body
Publication Date: 2025.03.05 TOYO SEIKAN GRP HLDG LTD
  • EP4516422A1 patent drawingFigure 1
  • EP4516422A1 patent drawingFigure 2
  • EP4516422A1 patent drawingFigure 3

AI summary

A technical problem is to improve productivity of a manufacturing system. The problem is solved by a can body manufacturing system according to the present invention including a can barrel forming apparatus, a printing apparatus, and a branch conveyor, wherein the can barrel forming apparatus is an apparatus for forming can barrels, the printing apparatus is to perform printing on an outer surfaces of the can barrels and includes a printing apparatus inlet conveyor, the branch conveyor is arranged in a post-process of the can barrel forming apparatus and includes a flow path switching unit, a first branch of the branch conveyor is connected to the printing apparatus inlet conveyor connected to the printing apparatus and is connected to a printed can manufacturing section, a second branch of the branch conveyor is connected to a bypass inlet conveyor not passing through the printing apparatus and is connected to a plain can manufacturing section, and printed cans manufactured by the printed can manufacturing section and plain cans without being printed manufactured by the plain can manufacturing section are producible by switching the flow path switching unit.