Bagmaking Former Precision Assembly via Segmented Support

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Solution Overview

Problem

Existing bagmaking and packaging machines require complex and precise assembly processes to ensure the packaging material is formed in a cylindrical shape without creasing or becoming crooked, which complicates the positioning of the former and wraparound member.

Innovation Solution

A bagmaking and packaging machine design that includes a former with a collar member and a first tube member, where the collar member is connected to one end of the tube member, and a wraparound member with a second tube member and chute, both featuring mating portions that align with support members for precise positioning through simple assembly, using cutting techniques to form these components with high precision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding or screws are used to secure the former and wraparound member to the support member, then the assembly is strong and stable, but the positioning precision deteriorates and the assembly process becomes complicated

Engineering Contradiction:

Improveassembly strengthVSAvoidpositioning precision

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

The support member is divided into a first support member for the former and a second support member for the wraparound member. Each support member has a dedicated mating hole that receives a corresponding mating portion, allowing independent positioning and assembly of each component without interference from the other assembly operations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mating portions act as intermediary elements between the former/wraparound member and the support member. These mating portions are specifically designed to fit into the mating holes, providing both positioning and mechanical connection functions, thereby eliminating the need for complex welding or screwing operations while maintaining precision.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If welding or screws are used to secure the former and wraparound member to the support member, then the assembly is strong and stable, but the assembly process becomes complicated and time-consuming

Engineering Contradiction:

Improveassembly strengthVSAvoidassembly process complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inventive Principle:

Principle #24Intermediary (Mediator)

3Manufacturing precision

If the former and wraparound member are positioned with high precision, then the packaging material is formed without creasing or becoming crooked, but the assembly work becomes complicated

Engineering Contradiction:

Improvepositioning precisionVSAvoidassembly work complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Inventive Principle:

Principle #24Intermediary (Mediator)

4Manufacturing precision

If the central axis of the first mating hole coincides with the central axis of the second mating hole, then the former and wraparound member are mutually positioned with high precision, but the manufacturing complexity increases

Engineering Contradiction:

Improvemutual positioning precisionVSAvoidmanufacturing ease

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The first support member and second support member are positioned asymmetrically relative to each other, with the central axis of the first mating hole coinciding with the central axis of the second mating hole. This asymmetric arrangement ensures precise mutual positioning of the former and wraparound member while maintaining ease of manufacture through simple assembly operations.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentEP4303134A1Former, bagmaking and packaging machine, and method of manufacturing bagmaking and packaging machine

Publication Date: 2024.01.10 ISHIDA CO LTD

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AI summary

Problem It is a problem to provide a former that is positioned with high precision by simple assembly work, a bagmaking and packaging machine using the former, and a method of manufacturing the bagmaking and packaging machine. Solution A bagmaking and packaging machine 100 forms a packaging material F in a tubular shape and packages packaging articles A. The bagmaking and packaging machine 100 includes a former 20, a wraparound member 30, and a support member 40. The former 20 folds and guides the packaging material F. Around the wraparound member 30 is wrapped the packaging material F folded by the former 20. The support member 40 supports the former 20 and the wraparound member 30. The former 20 includes a collar member 21 that guides the packaging material F and a first tube member 22 for forming in a tubular shape the packaging material F guided by the collar member 21. The first tube member 22 has one end to which the collar member 21 is connected, and includes a first mating portion 22b that is mated with the support member 40.