Rope Warping Machine Pressure Drum Dynamics

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Solution Overview

Problem

Existing rope warping machines face issues with rope damage due to increasing pressure from the bobbin's weight and friction, requiring more powerful motors and space, and struggle with maintaining constant pressure during the winding process.

Innovation Solution

A compact rope warping machine design featuring a cylindrically shaped bobbin and pressure drum with a linear contact surface, where the pressure drum is rotationally mounted to follow the increasing warp thickness, using a pneumatic drive system to maintain constant pressure and prevent rope damage, and a guiding device to manage the pressure drum's movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stress or pressure

If the bobbin weight increases to maintain constant pressure during winding, then the pressure control improves, but the rope damage increases due to excessive friction

Engineering Contradiction:

Improvepressure controlVSAvoidrope damage

Core Design Contradiction:

Stress or pressureVSObject-affected harmful factors

Solution Approach 1:

The pressure drum is made movable along the radial direction instead of being stationary, allowing it to dynamically adjust its position as the bobbin diameter increases during winding. This dynamic adjustment maintains constant contact pressure without requiring increasing bobbin weight, thereby preventing rope damage from excessive friction.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the parameter of pressure drum position (radial displacement) to compensate for the increasing bobbin diameter. By adjusting the pressure drum's radial position rather than increasing bobbin weight, the system maintains optimal contact pressure while avoiding harmful friction effects on the rope.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If the drums are arranged horizontally with offset axes to provide contact, then the structure is simple, but the space requirement increases significantly

Engineering Contradiction:

Improvestructure simplicityVSAvoidspace requirement

Core Design Contradiction:

Device complexityVSArea of stationary object

Solution Approach 1:

The pressure drum arrangement transitions from horizontal offset axes to a vertical configuration where both drums share the same vertical axis height. The pressure drums are positioned above and below the bobbin respectively, utilizing the vertical dimension to achieve the required offset functionality without increasing horizontal space consumption.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Stress or pressure

If the bobbin is made movable to compensate for increasing warp thickness, then the pressure distribution improves, but the device complexity increases due to guiding device requirements

Engineering Contradiction:

Improvepressure distributionVSAvoidguiding device complexity

Core Design Contradiction:

Stress or pressureVSDevice complexity

Solution Approach 1:

Instead of making the heavy bobbin movable to compensate for warp thickness, the invention inverts the approach by making the lighter pressure drums movable along the radial direction. This reversal maintains even pressure distribution while significantly reducing the complexity and power requirements of the guiding mechanism.

Inventive Principle:

Principle #13The other way round (Inversion)

4Force

If the motor power is increased to counteract increasing friction, then the driving force is sufficient, but the energy consumption and cost increase

Engineering Contradiction:

Improvedriving forceVSAvoidenergy consumption

Core Design Contradiction:

ForceVSUse of energy by moving object

Solution Approach 1:

The pressure drums are made dynamically adjustable along the radial direction, allowing them to follow the increasing bobbin diameter during winding. This dynamic adjustment maintains constant contact pressure and friction levels throughout the winding process, eliminating the need for increasingly powerful motors and reducing overall energy consumption.

Inventive Principle:

Principle #15Dynamics

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 minimizes rope damage, reduces the need for high-powered motors, and ensures a compact and efficient warping process by maintaining constant pressure on the bobbin, preventing excessive friction and wear.

Implementation Method 1

using a pneumatic drive system to maintain constant pressure

Methodology Applied

Scientific EffectPneumatic drive: Pressure Increase

Implementation Method 2

the pressure drum contacts the bobbin and particularly applies a predefined pressure to the rope wound onto the bobbin

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS11982025B2Warping machine for a rope and corresponding method

Publication Date: 2024.05.14 CALIK DENIM TEKSTIL SAN VE TIC AS

AI summary

The invention relates to a warping machine (1) for a rope (3) made of a plurality of yarns (5), comprising a support structure (25), a bobbin (9) onto which said rope is warped, wherein said bobbin is mounted on the support structure for rotating around a rotational bobbin axis (R1) of the bobbin, and a pressure drum (31) rotatably mounted on the support structure for rotating around a rotational drum axis (R2) for applying pressure onto the rope warped onto the bobbin, wherein said rotational bobbin axis is supported stationary with regard to said support structure and said rotational drum axis is translationally movably mounted on the support structure so that the pressure drum follows an increasing warp thickness on the bobbin.