Packaging Machine Elevator Crease Reduction Mechanism
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Solution Overview
Problem
Existing packaging machines for rolls, especially at high production speeds, often result in creases and defects in wrapping sheets due to aerodynamic effects and impact, leading to poor-quality packages.
Innovation Solution
A packaging machine with an elevator and lateral walls, equipped with contact and rubbing members such as brushes or rubber profiles, and integral plates to reduce creases by flattening and guiding the wrapping sheet during the wrapping process, ensuring high-quality packaging even at high speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the elevator moves the roll at high speed to increase productivity, then production speed increases, but creases and defects form in the wrapping sheet due to aerodynamic effects and impact
Solution Approach 1:
A contact and rubbing member (brush or rubber profile) is introduced as an intermediary element between the wrapping sheet and the elevator. This member transfers a flattening action to the wrapping sheet, eliminating creases and defects caused by high-speed movement and aerodynamic effects, thus enabling high productivity without sacrificing wrapping quality
Solution Approach 2:
The contact and rubbing member applies a preliminary flattening action to the wrapping sheet during the elevator movement, counteracting the harmful aerodynamic effects and impact that would otherwise cause creases. This preventive action ensures the wrapping sheet remains smooth and defect-free even at high production speeds
2Loss of substance
If thin wrapping materials are used to reduce cost and pollution, then material cost and environmental impact decrease, but the wrapping sheet becomes more susceptible to creases and defects
Solution Approach 1:
The contact and rubbing member serves as a protective intermediary that compensates for the reduced durability of thin wrapping materials. By continuously applying a flattening action during the wrapping process, it prevents creases and defects from forming, allowing the use of thinner, more economical materials without compromising package quality
Solution Approach 2:
The invention changes the physical state of the wrapping sheet by applying mechanical flattening action through the contact and rubbing member. This parameter change (from creased to smooth state) occurs during the wrapping process, enabling the use of thin materials that would otherwise be too prone to deformation
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 effectively reduces creases and defects in wrapping sheets, enabling the production of high-quality packages at increased speeds using thin, less expensive, and less polluting materials.
Implementation Method 1
the contact and rubbing member rubs on the wrapping sheet, or more precisely on a flap thereof, eliminating or at least partly flattening the creases that may have formed during the step in which the wrapping sheet is partially wrapped around the roll
Data Source
AI summary
The machine includes a device for spreading a wrapping sheet and an elevator, adapted to move a roll to be wrapped with respect to the wrapping sheet, so as to wrap the wrapping sheet around the roll as a result of the movement between the wrapping sheet and the roll. The machine further includes members adapted to reduce the formation of creases in the wrapping sheet during the movement of the roll with respect to the wrapping sheet.