Conveying Device for Parisons with Movable Intermediate Element
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Solution Overview
Problem
Conveying devices with inclined running rails experience malfunctions and production interruptions when handling lighter and smaller parisons for hollow objects, such as plastic bottles, due to jamming and tilting issues, which are not effectively addressed by existing solutions like rigid guide rails or vibration.
Innovation Solution
Incorporating a movable intermediate element in the guide rail that protrudes between the running rails and guide rail, with a force component acting towards the intermediate space to prevent jamming and correct the position of parisons, utilizing gravity or spring elements to generate the necessary force for this purpose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid guide rail is located above the running rails to guide the parisons, then the number of malfunctions with traditional parisons is reduced, but lighter and smaller parisons jam between the running rails and the guide rail, causing frequent interruptions
Solution Approach 1:
The patent replaces the rigid, fixed guide rail with a movable intermediate element that can dynamically adjust its position. This element is displaceable in the guide rail and can move vertically to accommodate parisons of different weights and dimensions, preventing jamming while maintaining guiding function. The dynamic adaptability allows the system to handle both traditional and lighter/smaller parisons effectively.
Solution Approach 2:
The intermediate element's position parameter is made variable rather than fixed. By allowing the intermediate element to displace vertically within the guide rail, the system can adapt to different parison characteristics (weight, size, shape). This parameter change enables the conveying device to maintain reliable operation with diverse parison types without causing jams or interruptions.
2Ease of manufacture
If the running rails are inclined to allow parisons to slide by gravity, then the conveying process is simplified, but lighter parisons cannot return to their normal position after tilting or jamming, requiring manual intervention
Solution Approach 1:
The movable intermediate element provides automatic position correction for tilted or jammed parisons. When a parison tilts or jams, the intermediate element displaces and applies a restoring force that pushes the parison back to its normal conveying position. This self-correcting mechanism eliminates the need for manual intervention and maintains continuous automatic operation, while the inclined running rails preserve the simple gravity-based conveying approach.
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 reliably prevents parison jamming and tilting, minimizing interruptions in transportation by ensuring parisons are returned to their normal position, thus maintaining continuous production flow without manual intervention.
Implementation Method 1
said force component being generated by a spring element
Implementation Method 2
the parisons slide from the upper end to the lower end of the running rails by the effect of gravity
Data Source
AI summary
A conveying device for cylindrical members, such as parisons (1) for hollow objects, has running rails (8, 9) which are inclined in the direction of travel of the parisons (1). A neck (3) of the parisons (1) which is part of a head (2) lies on the running rails (8, 9). A guide rail (11) which is located at a certain distance from the head (2) of the parisons (1) is fixedly arranged above the running rails (8, 9). A movable intermediate element (12) is retained and guided within the running rail (11). A force component (16) directed against the head (2) of the parisons (1) acts on the intermediate element (12).