Container Positioning Detection for Bulk Packing Automation

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Solution Overview

Problem

Existing apparatuses for packing bulk materials into containers face challenges with positioning accuracy and reliability, leading to inefficiencies and increased operator workload due to complex bag supply and potential bag detachment during operation.

Innovation Solution

An apparatus with a detection device for positioning correction, a gripping device for reliable container handling, and a positioning device for aligning containers, utilizing distance measuring, optical, or contact detection methods to ensure accurate and efficient packing and closure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If adhesion claw pairs with suction cups are used to open and transfer bags, then bag supply and transfer can be automated, but the bags can easily fall off during operation, reducing throughput and requiring extra operator work

Engineering Contradiction:
Improveautomation of bag supply and transferVSAvoidreliability of bag gripping
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The gripping device is divided into multiple independent gripping elements (fingers or claws) that can individually engage with the container. Each gripping element can be independently actuated to provide distributed contact points, increasing the reliability of gripping while maintaining automation. This segmentation allows the system to maintain a secure hold even if individual gripping points experience variability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A detection device (such as a sensor or detector) is integrated into the gripping device to detect the position and status of the container. This feedback mechanism allows the control system to adjust gripping forces or positioning in real-time, preventing bag drop and ensuring reliable transfer. The feedback loop enables automated compensation for positioning variations without reducing throughput.

Inventive Principle:
Principle #23Feedback

2Reliability

If complex bag supply systems with multiple cup-shaped bag magazines are used, then reliable bag supply can be achieved, but the system becomes complex and uneconomical during operation

Engineering Contradiction:
Improvereliability of bag supplyVSAvoidcomplexity of bag supply system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The gripping device is designed to perform multiple functions: it grips the container, detects its position, and can actively position/align the container. This multi-functionality eliminates the need for separate complex bag supply magazines and positioning mechanisms, achieving reliable supply with a simpler, more economical single integrated device.

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

Solution Approach 2:

The detection device integrated into the gripping device enables the system to self-correct positioning errors. The gripping device automatically detects container position variations and adjusts its gripping or positioning action accordingly, eliminating the need for external complex supply systems with multiple magazines and manual intervention.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If positioning accuracy requirements are maintained at high levels, then reliable container closure can be achieved, but operator workload increases and throughput decreases

Engineering Contradiction:
Improvepositioning accuracy of containerVSAvoidthroughput of packing apparatus
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system replaces complex mechanical positioning mechanisms with an integrated detection and active positioning system. Sensors detect container position, and the gripping device actively adjusts positioning through controlled movement, eliminating the need for high-precision mechanical fixtures and manual alignment, thereby maintaining accuracy while increasing throughput.

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

Solution Approach 2:

The detection device detects container position early in the process, and the positioning device performs corrective alignment before the container reaches the filling and closing stations. This preliminary correction ensures that subsequent operations can proceed with standard precision requirements, maintaining manufacturing precision without requiring high positioning accuracy throughout the entire process, thus preserving throughput.

Inventive Principle:
Principle #10Preliminary action

4Measurement precision

If pneumatic or hydraulic lever joints are used to position bag opening claws, then predefined positioning can be achieved, but the system requires complex actuation mechanisms and reduces operational economy

Engineering Contradiction:
Improvepositioning precision of gripping deviceVSAvoidcomplexity of actuation mechanism
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex pneumatic or hydraulic lever joint mechanisms with a detection-based active positioning system. Sensors detect the actual position of the container, and the gripping device is controlled (likely through a simpler actuation system) to align with the detected position, achieving precise positioning without complex mechanical actuation mechanisms.

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

Solution Approach 2:

The detection device provides real-time feedback on container position, allowing the control system to adjust the gripping device positioning dynamically. This feedback-based positioning replaces the need for complex pre-programmed mechanical actuation sequences, achieving the same positioning precision with a simpler, more operationally economical system.

Inventive Principle:
Principle #23Feedback

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 solution enhances positioning accuracy and reliability, reducing operator effort and increasing throughput by allowing for more economical and efficient packing processes.

Implementation Method 1

The detection device is disposed on the gripping device. In addition, the apparatus has a positioning device for positioning the container as a function of the detected position

Methodology Applied
Scientific EffectDistance measuring: Time of Flight

Implementation Method 2

utilizing distance measuring, optical, or contact detection methods to ensure accurate and efficient packing and closure

Methodology Applied
Scientific EffectOptical detection: Optical Tweezers

Data Source

PatentUS9815580B2Apparatus and method for packing bulk material into a container
Publication Date: 2017.11.14 PREMIER TECH TECH LTD
  • US9815580B2 patent drawing
  • US9815580B2 patent drawing
  • US9815580B2 patent drawing

AI summary

The apparatus (1) according to the invention for packing bulk material into a container (2) comprises a provisioning device (3) for the container (2). The container (2) has a filling side with a filling opening arranged therein. The apparatus (1) further comprises a gripping device (4) for gripping of the substantially closed and empty container (2) by the provisioning device (3). The apparatus optionally comprises a conveying device (5) for conveying the container (2) to a packing device (6). The apparatus further optionally comprises a container-opening device (9) for opening the container (2). The gripping device (4) has a detection device (7) for detecting the position of the container on and/or in the provisioning device (3). The apparatus (1) additionally has a positioning device for positioning the container on the basis of said detected position.