Textile Lapping Machine Independent Comb and Presser Bar Drives
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Solution Overview
Problem
Textile lapping machines face challenges in efficiently pleating and laminating fibrous webs to achieve consistent thickness and density, particularly in producing wide, dimensionally stable products with varying fiber types and thicknesses.
Innovation Solution
A fibrous web pleating apparatus with a reciprocable comb assembly and presser bar system, driven independently by a common motor through chain or belt transmission, allowing adjustable stroke and angle for precise pleating and lapping, with the ability to handle fibrous webs of varying thickness and width, and featuring an apron feed device and inclined slide plate for efficient web alignment and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mechanical coupling is used to link the comb drive and presser bar drive, then the structure is simpler, but the ability to independently adjust stroke and handle varying web thickness is reduced
Solution Approach 1:
The drive mechanism is segmented into two independent drive systems - one for the comb assembly and one for the presser bar assembly. Each assembly has its own motor and transmission mechanism, allowing independent adjustment of stroke and speed to accommodate varying web thickness and pleating requirements without mechanical coupling constraints.
Solution Approach 2:
The system employs dynamic independent adjustment capabilities where the comb stroke and presser bar stroke can be varied independently during operation. This allows the machine to adapt to different web thicknesses (10-55 mm) and pleating patterns by dynamically modifying the stroke parameters of each assembly without requiring mechanical linkage between the drives.
2Use of energy by moving object
If a common motor with chain or belt transmission is used for both drives, then energy efficiency is improved, but the ability to independently control each assembly is reduced
Solution Approach 1:
Two separate drive assemblies are merged with a common motor through chain or belt transmission systems. This configuration allows both the comb assembly and presser bar assembly to be powered by a single motor source, improving energy efficiency and reducing overall power consumption while maintaining independent control capabilities through separate transmission paths and control mechanisms for each assembly.
Data Source
AI summary
A textile lapping machine has an inclined reciprocating comb which deposits a vertically descending fibrous web onto a mesh belt of an endless conveyor which travels through an oven. A reciprocating presser bar pushes the pleats formed by the comb into a shark unit which extends across the width of the mesh belt. The unit has a toothed plate which initially slows the pleated web and longitudinal fingers which overlie the conveyor and form a shallow lapping zone. A textile card delivers the fibrous web to the lapping zone and the oven fuses any low melt synthetic fibers in the web to the surrounding fibers to give a batt with a density of 80-2000 gsm. The comb path direction remains constant and the presser bar and shark unit are moved towards and away from the comb. The drives to the comb and presser bar are independent.