Automatic Gathering Pre-shape Machine for Plastic Films

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Solution Overview

Problem

Manual gathering of pre-shaped plastic films from molding devices is prone to scratches and is time-consuming, leading to yield loss and inefficiency, especially when handling large quantities.

Innovation Solution

An automatic gathering pre-shape machine with a rotating table, hot air generator, and a gathering device featuring a barrel with airflow and shelves to lift and guide plastic films, preventing damage and facilitating efficient collection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual gathering of pre-shaped plastic films is performed, then the plastic films can be collected from the molding device, but the plastic films are scratched and damaged due to personnel carelessness

Engineering Contradiction:
Improveplastic film integrityVSAvoidpersonnel scratch
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the manual mechanical gathering process with an automated airflow-based system. The air blowing device uses controlled airflow to transport pre-shaped plastic films from the molding device to the gathering location, eliminating direct mechanical contact by personnel and preventing scratches and damage to the plastic films.

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

Solution Approach 2:

The patent introduces air as an intermediary medium to transfer the pre-shaped plastic films. Instead of personnel directly handling the films, compressed air serves as a contactless mediator that propels the films through the gathering device, ensuring no physical damage occurs during the gathering process.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If manual gathering of pre-shaped plastic films is performed, then the plastic films can be collected, but the process is time-consuming and tedious

Engineering Contradiction:
Improvepre-shaping process efficiencyVSAvoidgathering time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent implements an automated self-service gathering system where the air blowing device automatically draws pre-shaped plastic films from the molding device and delivers them to the designated location without requiring manual intervention. The system operates autonomously, significantly reducing gathering time and improving overall productivity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent establishes a continuous gathering process where the air blowing device maintains constant airflow to continuously transport plastic films as they are formed. This eliminates the intermittent, step-by-step nature of manual gathering, allowing for uninterrupted and efficient collection of pre-shaped films throughout the production cycle.

Inventive Principle:
Principle #20Continuity of useful action

3Productivity

If manual gathering of pre-shaped plastic films is performed, then the plastic films can be removed from the molding device, but yield loss occurs due to personnel scratch

Engineering Contradiction:
Improvefilm removal efficiencyVSAvoidyield loss
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The patent replaces manual mechanical removal with an automated airflow-based removal system. The air blowing device uses controlled air currents to lift and transport pre-shaped plastic films from the molding device, eliminating the need for personnel to physically handle and remove the films, thereby preventing scratches and reducing yield loss.

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

Solution Approach 2:

The patent introduces air as a contactless intermediary to facilitate film removal. Instead of personnel directly touching and removing the plastic films from the molding device, compressed air serves as a mediator that gently propels the films away, ensuring no physical damage occurs during the removal process and maximizing yield.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The machine automatically gathers pre-shaped plastic films without human intervention, reducing damage and accelerating the pre-shaping process while minimizing yield loss.

Implementation Method 1

The air generator is mounted in the inner end of the barrel and generates airflow flowing toward the outer end of the barrel

Methodology Applied
Scientific EffectAirflow: Fluid Spray

Implementation Method 2

The hot air generator is mounted adjacent to the rotating table and has multiple nozzles corresponding to and spraying hot air to the rotating table

Methodology Applied
Scientific EffectHot air heating: Convection

Data Source

PatentUS7845933B2Automatic gathering pre-shape machine
Publication Date: 2010.12.07 NEW SOLID INT CORP
  • US7845933B2 patent drawing
  • US7845933B2 patent drawing
  • US7845933B2 patent drawing

AI summary

An automatic gathering pre-shape machine has a main body and a gathering device. The main body can make plastic films formed into a circular shape with an annular flange formed around a top edge of the film. The gathering device allows a pre-shaped plastic film be blown toward an outer end of the barrel to hit a block wall and drop and mount around a tip portion of corresponding shelf to be gathered. Consequently, the plastic film may easily and automatically be gathered from the main body. Therefore, the plastic films can be kept from being damaged and the pre-shaping process is accelerated.