Warp Knitting Bar Assembly Quick-Release Socket Mechanism

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Solution Overview

Problem

The existing methods for replacing knitting elements on a warp knitting machine are complex, time-consuming, and require skilled personnel, with a high risk of screws falling off and causing damage due to the need to loosen and reinsert them into new sockets along a long bar.

Innovation Solution

A carrier element arrangement is introduced, allowing the active element socket to be easily detached and replaced by loosening a clamping element that remains connected to the bar, with a U-shaped recess and anti-twist mechanism to prevent deformation and loss, facilitated by a spring-loaded O-ring and stop for precise alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a screw-nut combination is used to attach active element sockets to the bar, then the sockets can be securely fastened, but the replacement process becomes complex and time-consuming

Engineering Contradiction:
Improvesecure fasteningVSAvoidreplacement time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The bar is divided into modular sections with standardized attachment points. The active element sockets are designed as separate, interchangeable components that can be quickly attached and detached from the bar segments, enabling rapid replacement without complex assembly procedures.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The screw-nut combination is extracted and replaced with a simplified quick-release mechanism. The active element sockets are designed to be directly mounted on the bar using integrated fastening features, eliminating the need for separate screws and nuts that require time-consuming installation and removal.

Inventive Principle:
Principle #2Taking out (Extraction)

2Adaptability or versatility

If screws are repeatedly loosened and reinserted during active element replacement, then new sockets can be attached, but the risk of screw loss and machine damage increases

Engineering Contradiction:
Improvereplacement flexibilityVSAvoidscrew loss risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The fastening function is merged into the active element socket design itself. The sockets incorporate integrated attachment features that combine the mounting and securing functions into a single component, eliminating separate screws that could be lost during the replacement process.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A specialized quick-release mechanism acts as an intermediary between the active element socket and the bar. This mediator component enables rapid attachment and detachment while ensuring that no small parts are separated from the assembly, preventing loss and potential machine damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If multiple active element sockets are arranged along a long bar, then the knitting machine can function, but the complexity of maintenance and servicing increases

Engineering Contradiction:
Improveknitting capacityVSAvoidmaintenance complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

All active element sockets along the bar are designed with universal, standardized attachment mechanisms. This uniformity allows the same replacement procedure to be applied to any socket on the bar, significantly reducing maintenance complexity despite the large number of components.

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

Solution Approach 2:

The active element sockets are pre-assembled with their attachment mechanisms before being installed on the bar. This preliminary preparation ensures that during maintenance, only the socket itself needs to be replaced without requiring complex disassembly or adjustment procedures.

Inventive Principle:
Principle #10Preliminary action

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

This design simplifies the replacement process, reduces the risk of errors and damage, and allows for efficient handling of long bars with minimal operator effort, enabling quick and accurate installation of new sockets without disturbing neighboring elements.

Implementation Method 1

spring-loaded O-ring

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3683343B1Knitting implement bar assembly of a warp knitting machine
Publication Date: 2022.05.18 KARL MAYER STOLL R&D GMBH
  • EP3683343B1 patent drawingFigure 1~4

AI summary

A working element-bar assembly (1) of a warp knitting machine is described, comprising a bar (2) and several working element sockets (3), each of which has several working elements (4). The working element sockets (3) bear against the bar (2) with a bar contact surface and are detachably attached to the bar (2). Maintenance and servicing of such a working element-bar assembly are to be simplified. For this purpose, at least one working element socket (3) is provided with a recess (6) open on one side, in which a clamping element (10) connected to the bar (2) is arranged, acting on the working element socket (3) from a side opposite the bar contact surface.