Nailing Machine Cross-Clamp Pattern for Spool Flange Assembly

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Solution Overview

Problem

Existing nailing machines for assembling wooden spool flanges are cumbersome, difficult to adjust for various diameters, require lengthy format changes, and are costly due to bulky structures and complex compaction mechanisms, necessitating continuous strip compaction during rotation.

Innovation Solution

A nailing machine with a cross-like pattern of nailing clamps oriented at right angles, allowing for simultaneous compaction and nailing without requiring continuous strip compaction during rotation, featuring a simplified design with automated adjustments for rapid format changes and reduced production time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a bulky structure with compaction elements is used to maintain continuous strip compaction during rotation, then nailing reliability is improved, but device complexity and manufacturing cost increase

Engineering Contradiction:
Improvenailing reliabilityVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The compaction elements perform their compaction action on the strips before the nailing operation begins. The strips are pre-compacted into the flange while stationary, eliminating the need for continuous compaction during rotation. This preliminary action ensures reliable nailing without requiring complex rotating compaction mechanisms.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If a bulky structure is used to support rotating compaction elements, then compaction effectiveness is maintained, but the machine's adaptability to various flange diameters deteriorates

Engineering Contradiction:
Improvecompaction effectivenessVSAvoidadaptability to various diameters
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The compaction elements are designed to be adjustable and adaptable to different flange diameters. Rather than a fixed bulky structure, the compaction mechanism can be repositioned or reconfigured to accommodate various sizes, maintaining compaction effectiveness across different flange formats while improving versatility.

Inventive Principle:
Principle #15Dynamics

3Reliability

If continuous rotation with compaction action is used, then nailing completeness is improved, but assembly time increases

Engineering Contradiction:
Improvenailing completenessVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By performing compaction before rotation and nailing begins, the process eliminates the time-consuming requirement of maintaining continuous compaction during rotation. The preliminary compaction ensures complete nailing while significantly reducing total assembly time, as the rotation phase only requires nailing without concurrent compaction action.

Inventive Principle:
Principle #10Preliminary action

4Stability of the object's composition

If a complex framework is used to support nailing clamps and compaction elements, then structural stability is improved, but ease of manufacture deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidease of manufacture
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The machine structure is divided into separate, modular components: a stable framework for supporting nailing clamps, and separate adjustable compaction elements. This segmentation allows each component to be manufactured and adjusted independently, simplifying the overall manufacturing process while maintaining the structural stability needed for precise nailing operations.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2952308B1Nailing machine, particularly for assembling flanges of wooden spools for winding electrical cables, steel cables, ropes, fiber optic cables or wire-like elements in general
Publication Date: 2017.09.13 CORALI
  • EP2952308B1 patent drawingFigure 1
  • EP2952308B1 patent drawingFigure 2
  • EP2952308B1 patent drawingFigure 3

AI summary

A nailing machine, particularly for assembling flanges of wooden spools for winding electrical cables, steel cables, ropes, fiber optic cables or wire-like elements in general, comprising: - a station (2) for composing a flange of a spool to be assembled (3); - a nailing station (4); - means (5) for supporting the flange to be assembled (3) on a substantially horizontal plane; - means (6) for the advancement of the flange to be assembled (3) from the composition station (2) to the nailing station (4) along an advancement direction (7), the flange to be assembled (3) being composed of two layers of strips (8a, 8b) in which the strips (8a) of one layer are oriented at right angles to the advancement direction (7) and the strips (8b) of the other layer are oriented parallel to the advancement direction (7); - means (9) for compacting the strips (8a, 8b) of the two layers respectively along a direction that is parallel to the advancement direction (7) and along a direction that is perpendicular to the advancement direction (7); - nailing means (10), arranged at the nailing station (4); - means (11) for rotating the flange to be assembled (3) about its own axis, which is oriented substantially vertically, the means being arranged at the nailing station (4); the nailing means (10) comprise at least two rows (12a, 12b, 13a, 13b) of nailing clamps (14), which are oriented at right angles to each other, respectively at least one first row (12a, 12b) of nailing clamps (14) that is oriented parallel to the advancement direction (7) and at least one second row (13a, 13b) of nailing clamps (14) that is oriented at right angles to the advancement direction (7).