Yarn Cage Conveyor Closed-Loop Positioning With Mechanical Gripper

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Solution Overview

Problem

The existing yarn cage conveying methods in the textile dyeing industry face inefficiencies, safety concerns, and high labor costs due to open-loop control, instability, and the use of flexible steel cables, leading to inaccurate positioning, time-consuming operations, and potential accidents.

Innovation Solution

A yarn cage conveyor equipment with a closed-loop control system, comprising a first and second beam, a mechanical gripper with a telescoping mechanism and grab mechanism, a position detection unit, and motors, which enables precise positioning and automatic conveyance, reducing the need for manual steel cable handling and enhancing rigidity and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If open-loop control with manual operation is used, then the device complexity is low, but the positioning precision and operation speed are poor

Engineering Contradiction:
Improvepositioning precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements closed-loop control by introducing a position detection unit that continuously monitors the positions of the first and second beams and feeds this information back to the control device. The control device adjusts the motor movements based on this feedback to achieve precise positioning of the mechanical gripper, directly resolving the positioning precision issue while maintaining manageable system complexity through automated feedback mechanisms.

Inventive Principle:
Principle #23Feedback

2Stability of the object's composition

If steel cable is used for hanging yarn cage, then the device complexity is low, but the rigidity and stability are insufficient leading to collisions

Engineering Contradiction:
Improvesystem rigidityVSAvoidmechanical structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent removes the flexible steel cable from the system and replaces it with a rigid mechanical structure consisting of a first beam, second beam, and mechanical gripper. This extraction of the problematic flexible element eliminates the swinging and collision issues while the rigid beam structure provides the necessary stability and rigidity for safe yarn cage conveyance.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the simple steel cable hanging mechanism with a sophisticated mechanical gripper system actuated by cylinders. This mechanical substitution provides rigid, controllable, and stable support for the yarn cage, eliminating the instability and collision risks associated with flexible cable systems while enabling precise positioning control.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If manual connection of steel cable is used, then the device complexity is low, but the operation time is excessive and safety is poor

Engineering Contradiction:
Improveconveyance efficiencyVSAvoidautomation level
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements automated conveyance where the mechanical gripper automatically grasps the yarn cage and the control system automatically controls the beam movements and gripper actuation. This self-service automation eliminates manual intervention in the connection and conveyance process, dramatically improving productivity while the integrated control system manages the increased automation complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual steel cable connection process with an automated mechanical gripper system controlled by cylinders and a control device. This substitution automates the previously manual tasks of connecting and conveying the yarn cage, significantly reducing operation time and improving productivity while the control system handles the complexity of coordinated automated movements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 improves production efficiency, safety, and reduces labor costs by enabling accurate and automated yarn cage conveyance, minimizing collisions and accidents, and extending the lifespan of equipment through precise control and mechanical gripping.

Implementation Method 1

the telescoping mechanism comprises a first cylinder; the grab mechanism is connected with a piston rod of the first cylinder

Methodology Applied
Scientific EffectHydraulic or pneumatic pressure: Hydraulic Press

Implementation Method 2

the grab mechanism comprises: a second cylinder, a jaw and a base; the second cylinder is mounted on the base; the jaw comprises a first hinge part and a second hinge part

Methodology Applied
Scientific EffectMechanical force: Mechanical Force

Implementation Method 3

a position detection unit, which is used for detecting the positions of the first beam and the second beam

Methodology Applied
Scientific EffectElectromagnetic or optical detection:

Data Source

PatentEP2759497B1Sarong transportation apparatus
Publication Date: 2016.04.13 TAIAN COMPANION MACHINERY
  • EP2759497B1 patent drawingFigure 1
  • EP2759497B1 patent drawingFigure 2
  • EP2759497B1 patent drawingFigure 3

AI summary

The disclosure provides a yarn cage conveyor equipment, comprising: a first beam, which is arranged on a guide rail and can move along the guide rail; a second beam, which is moveably arranged on the first beam and can move along the first beam; a mechanical gripper, which is arranged on the second beam and comprises a telescoping mechanism and a grab mechanism connected with the telescoping mechanism; a position detection unit, which is used for detecting the positions of the first beam and the second beam; and a control device, which is used for controlling the movements of the first beam, the second beam and the mechanical gripper according to the position information detected by the position detection unit. The disclosure can realize the automatic conveyance of yarn cage through the control device and the mechanical gripper, thereby improving the production efficiency and safety of dyeing production and reducing labour cost.