Strapping Device Pivoting Arms Belt Frame Elimination
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Solution Overview
Problem
Existing strapping devices face challenges with inserting strapping belts into belt frames, particularly with materials of low flexural stiffness, leading to errors and wear, and are limited to processing only thin materials due to friction issues.
Innovation Solution
A strapping device with pivoting arms that adjust to enclose articles, using a handling device with clamping mechanisms to tension and connect strapping belts, allowing for the use of flexible materials and varying widths, and incorporating a fixing device for secure connections through heat-sealing, ultrasonic welding, or crimping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a belt frame is used for strapping, then the strapping belt can be guided around the group of articles, but inserting the strapping belt into the belt frame is prone to errors with low flexural stiffness materials and causes friction-induced wear
Solution Approach 1:
The patent removes the belt frame component entirely from the strapping system. Instead of guiding the strapping belt through a frame structure, the invention uses a clamp that directly applies tension to the belt ends, eliminating the insertion errors and friction wear associated with belt frames.
Solution Approach 2:
The patent introduces a clamp as an intermediary device between the strapping belt and the articles. The clamp grips the belt ends and applies tension directly, serving as a mediator that eliminates the need for belt frame insertion while ensuring proper belt tensioning and positioning.
2Extent of automation
If a belt frame is used for strapping, then the strapping process can be automated, but friction of the strapping belts within the belt frame results in undesirable wear and limits material thickness
Solution Approach 1:
By removing the belt frame from the system, the patent eliminates the source of friction that causes belt wear. The clamp-based tensioning mechanism allows the belt to pass through without contacting friction surfaces, thereby extending belt service life while maintaining full automation.
Solution Approach 2:
The patent replaces the mechanical belt frame guidance system with a clamp-based tensioning system. This substitution eliminates friction-induced wear by using a different mechanical approach that does not require the belt to slide through frame structures, thereby extending belt durability.
3Force
If a belt frame is used for strapping, then the strapping belt can be tensioned and secured, but only relatively thin materials can be processed due to friction limitations
Solution Approach 1:
The patent removes the belt frame that limited material thickness processing. The clamp-based system can accommodate belts of various thicknesses and stiffness levels without friction constraints, enabling processing of both thin and thick materials with the same mechanism.
Solution Approach 2:
The clamp-based tensioning mechanism is designed to be universal, accommodating strapping belts of varying thicknesses and material properties. The clamp adjusts its grip to handle different belt specifications, making the system versatile for processing both thin and thick materials without friction-induced limitations.
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 device enables cost-effective and error-resistant production of strapped packages with high performance, capable of processing materials of high stiffness and thickness, and accommodating different belt widths and article arrangements.
Implementation Method 1
secured and cut and then sealed by heating
Implementation Method 2
secured and cut and then sealed by heating
Implementation Method 3
The two free belt ends are thereby brought closer to one another and preferably arranged in a partially overlapping or at least abutting manner and connected to one another
Data Source
AI summary
The invention relates to a strapping device and a method for producing strapped packages, which combine at least two articles by means of at least one strap. The strapping device is paired with a device for providing two or more grouped articles. and the strapping device comprises a handling device (10) with two pivoting arms (11, 12) which can be adjusted relative to each other and each of which is equipped with clamping devices (14, 15) for fixing the belt ends (27) of a strapping belt (26) or a strapping blank (28) in a clamped manner. The pivoting arms (11, 12) can surround the grouped articles for the purpose of strapping same, thereby pivoting the first pivoting arm (11) and the second pivoting arm (12). The strapping device additionally comprises a fixing device for connecting the two belt ends (27) of the strapping belt (26) or the strapping blank (28).