Material Feeding Bag With Weak Welding Seal

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Solution Overview

Problem

Existing material feeding systems require manual scissors to open bags, leading to metal debris, operator contamination, and inefficient operation, which is cumbersome, time-consuming, and difficult to automate.

Innovation Solution

A material feeding bag design with a controllable lower port that eliminates the need for scissors, featuring an inner bag with a weak welding seal that opens automatically upon reaching the hopper entrance, ensuring safe and efficient material discharge without external contamination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual scissors are used to shear the bag, then the bag can be opened for material discharge, but metal debris is generated and operator contamination occurs

Engineering Contradiction:

Improvebag opening operationVSAvoidmetal debris and operator contamination

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent removes the scissors (metal cutting tool) from the system entirely and replaces it with a weak welding seal that can be opened without metal tools. The sealing structure is extracted and replaced with a tearable bonding structure that eliminates metal debris generation.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The weak welding seal is designed as a disposable, single-use sealing structure that is intentionally made weak so it can be easily torn open by hand without requiring durable metal tools. This disposable sealing approach eliminates the need for reusable scissors that generate debris.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Ease of operation

If manual operation with scissors is used, then the bag can be opened, but the operation process is cumbersome and time-consuming

Engineering Contradiction:

Improvebag opening operationVSAvoidoperation time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The bag is pre-sealed with a weak welding seal during manufacturing that is specifically designed to be easily torn open. This preliminary preparation of the sealing structure enables rapid opening without requiring complex manual operations or tools during the discharge process.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Instead of using a strong seal that requires cutting tools (scissors) to open, the patent inverts the approach by using a weak seal that opens easily by hand. The sealing strength is deliberately reduced to facilitate rapid manual opening without tools.

Inventive Principle:

Principle #13The other way round (Inversion)

3Productivity

If manual opening of the bag is required, then material discharge can occur, but automation is reduced and multiple operators are needed

Engineering Contradiction:

Improvematerial discharge efficiencyVSAvoidautomated material feeding

Core Design Contradiction:

ProductivityVSExtent of automation

Solution Approach 1:

The weak welding seal is designed to be self-opening, requiring no external tools or complex mechanisms. The seal tears open automatically when material pressure builds up or when lightly pulled, enabling automated or semi-automated discharge without requiring manual intervention with scissors.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The sealing structure transitions from a static strong seal to a dynamic weak seal that can easily change state from sealed to open. This dynamic sealing allows the bag to automatically transition between closed and open states based on material pressure or minimal external force, facilitating automated operation.

Inventive Principle:

Principle #15Dynamics

4Ease of manufacture

If scissors are used to open the bag, then the seal can be broken, but collision between scissors and device generates metal debris

Engineering Contradiction:

Improveseal breakingVSAvoidmetal debris from scissors collision

Core Design Contradiction:

Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent completely removes scissors and all metal cutting tools from the bag opening process. The sealing structure is replaced with a non-metallic, tearable weak welding seal that can be opened by hand or automatically without any metal tools that could collide with the device and generate debris.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The weak welding seal acts as an intermediary between the bag closure and the opening action. Instead of directly using metal scissors to cut through the seal, the weak seal mediates the opening process by allowing easy manual or automated tearing without requiring metal tool intervention.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9994391B2Material feeding bag

Publication Date: 2018.06.12 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

AI summary

The present disclosure provides a material feeding bag which comprises an inner bag. The inner bag has: an inner bag upper port portion, an inner bag main receiving portion and an inner bag lower port portion. The inner bag upper port portion has an upper port; the inner bag main receiving portion is connected to a lower end of the inner bag upper port portion along an axial direction; the inner bag lower port portion is connected to a lower end of the inner bag main receiving portion along the axial direction and has a lower port for controllable communication with an external hopper entrance. It doe not need to shear the material feeding bag by a scissors when materials is fed, so that it avoids generation of metal debris, and the mating and feeding material operation is fast and simple, and the working environment for an operator is improved.