Overlapping Conveyor Belts for Crease-Free Hygiene Product Packaging
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Solution Overview
Problem
Conventional packaging systems for flat, flexible products like hygiene items face challenges in maintaining high throughput and preventing defects due to shifting during continuous wrapping with tubular film, leading to creases and system downtimes.
Innovation Solution
A conveyor device with overlapping lateral belts ensures continuous, frictional guidance of products through the packaging system, preventing shifting and ensuring tight, crease-free wrapping by maintaining mechanical grip during infeed, wrapping, and discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cell wheels or tubular bag machines are used for packaging, then packaging functionality is achieved, but system downtime occurs and throughput speed decreases
Solution Approach 1:
The patent implements a continuous linear conveyor system that eliminates the periodic stopping and starting inherent in cell wheel and tubular bag machine designs. Products are conveyed continuously through the packaging process without interruption, maintaining constant motion from infeed through wrapping to discharge, thereby eliminating system downtime and maximizing throughput speed.
Solution Approach 2:
The conveyor system employs dynamically adjustable components including variable speed motors and controllable conveyor belts that can adapt their speed and position in real-time. This dynamic control allows the system to maintain optimal throughput while accommodating different product sizes and packaging requirements without requiring system shutdowns.
2Productivity
If products are conveyed at high speed for high throughput, then productivity increases, but products shift during wrapping causing creases and defects
Solution Approach 1:
The patent incorporates feedback mechanisms including sensors and control systems that continuously monitor product position and conveyor speed. This feedback allows real-time adjustments to maintain precise product positioning during high-speed conveyance, preventing shifting and ensuring consistent wrapping quality without sacrificing throughput rate.
Solution Approach 2:
The system performs preliminary positioning and stabilization of products on the conveyor before they enter the wrapping zone. This preliminary action ensures products are correctly positioned and secured prior to high-speed wrapping, preventing shifts and creases during the wrapping process while maintaining overall high throughput.
3Manufacturing precision
If tubular film is wrapped tightly around product stacks to prevent movement, then wrapping quality improves, but friction increases making continuous wrapping difficult
Solution Approach 1:
The patent replaces the traditional high-friction mechanical wrapping approach with a low-friction linear conveyor system. Instead of relying on high friction between the film and product to prevent movement, the system uses precise conveyor control and product stabilization mechanisms to maintain positioning, thereby achieving tight wrapping quality with significantly reduced friction and energy consumption.
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
This design enhances throughput by maintaining uninterrupted product flow and prevents defects by ensuring continuous, frictional access and clamped guidance throughout the wrapping process, achieving high-quality packaging without creases or shifting issues.
Implementation Method 1
conveyor belts acting laterally on the products... ensuring continuous, frictional guidance of products through the packaging system... maintaining mechanical grip during infeed, wrapping, and discharge
Data Source
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AI summary
Packaging installation (1) for packaging flat, flexible products, in particular hygiene products, into packaging bags (28), having a tubular sheet material (16) which runs continuously around a forming shoe (18) and is intended for wrapping the products in the sheet-material tube (4) formed, having a conveying device for feeding, and introducing, the product stacks (8) into the sheet-material tube (4), and having downstream welding devices (20, 38) for welding the sheet-material tube (4) transversely and longitudinally, characterized in that the conveying device is configured as a belt conveyor with transporting belts (60) which act laterally on the products, wherein the transporting belts (60) consist of at least two individual belts (48), and wherein the individual belts are mounted in an overlapping state at at least one position within the packaging installation.