Binding Device for Sun-Blind Lamella Packs

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Solution Overview

Problem

Existing machines for producing sun-blind lamellas face challenges in binding packs of varying lengths and quantities without re-setting, which can lead to disintegration during handling.

Innovation Solution

A binding device with a storage tank for binding tapes, leader pulleys, and pneumatic welding jaws that allows for automatic binding on the stacking frame, enabling secure packaging without adjustments, using a reel with double binding tapes and triple pulleys for smooth tape alignment and welding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If binding is performed after take-away from stacking frame, then binding quality is improved, but handling time and productivity are reduced

Engineering Contradiction:
Improvebinding qualityVSAvoidhandling time
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The binding device performs preliminary binding action on the stacking frame before the pack is taken away. The binding tapes are fed through the lamella pack and welded in position while the pack is still on the stacking frame, eliminating the need for post-take-away binding operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces a binding device as an intermediary system between the stacking frame and the take-away process. This device includes binding tape storage, feeding mechanisms, and welding jaws that operate independently to secure the pack during stacking, allowing subsequent handling without disintegration risks.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If binding device is designed for specific pack dimensions, then binding quality is improved, but adaptability to different pack sizes is reduced

Engineering Contradiction:
Improvebinding qualityVSAvoidadaptability to different pack sizes
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The binding device incorporates adjustable and movable components that can adapt to different pack dimensions. The binding tapes are fed dynamically through the pack, and the welding jaws can position themselves appropriately regardless of the specific number or length of lamellas in the pack.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The binding device is designed as a universal system that can handle packs of varying sizes and configurations. The same device structure and binding mechanism work effectively whether the pack contains few short lamellas or many long ones, eliminating the need for re-setting.

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

3Ease of manufacture

If binding device structure is simplified, then ease of manufacture is improved, but binding quality and reliability are reduced

Engineering Contradiction:
Improvedevice construction simplicityVSAvoidbinding quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The binding device employs self-aligning and self-adjusting mechanisms that eliminate the need for complex precision adjustments. The binding tapes automatically feed through the pack, and the welding jaws self-position to ensure proper binding without requiring elaborate calibration or complex mechanical linkages.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The device utilizes pneumatic cylinders to drive the welding jaws and control the binding tape feeding mechanism. This pneumatic actuation provides reliable, consistent force for welding and tape advancement while maintaining a relatively simple mechanical structure compared to purely mechanical drive systems.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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

Enables secure binding of sun-blind lamella packs of different lengths and quantities without re-setting, ensuring high-quality packaging and preventing disintegration during handling, with synchronized operation with the stacking frame.

Implementation Method 1

welding jaws (12) which are connected with pneumatic cylinders (16)

Methodology Applied
Scientific EffectPneumatic pressure: Pressure Increase

Data Source

PatentEP2141071B1Binding device
Publication Date: 2012.04.25 ZEBR
  • EP2141071B1 patent drawingFigure 1
  • EP2141071B1 patent drawingFigure 2

AI summary

The binding device for stacking frame of the machine for production of sun-blind lamellas, characterised by the fact that it includes a storage tank (9) for a pair of binding tapes (10) placed below the stacking unit (1) and one set of leaders (11) for each binding tape (10) placed on both sides of the guiding groove (6) of the lamella ledge (4) of the stacking unit (1) and a pair of mutually movable welding jaws (12) placed on the lamella ledge (4) of the stacking unit (1) below the lower of sun-blind lamellas (7) with lifted stacked pack of sun-blind lamellas (7).