Pivoting Discharge Flap for Variable-Length Pipe Section Unloading

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Solution Overview

Problem

Existing pipe processing machines lack the ability to unload pipe sections of different lengths without requiring significant modifications to the unloading device.

Innovation Solution

The unloading device incorporates adjustable unloading flaps that can be folded into an unloading position parallel to the pipe guide axis, allowing for controlled unloading of both short and long pipe sections, and includes a support mechanism that can pivot or move along the height axis to support the pipe during processing, ensuring precise cutting and easy unloading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed unloading device configuration is used, then the device structure is simple, but it cannot accommodate pipe sections of different lengths

Engineering Contradiction:
Improveability to handle different pipe lengthsVSAvoidunloading device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The unloading flap is made movable rather than fixed, allowing it to pivot between a retracted position (for short pipes) and an extended support position (for long pipes). This dynamic adjustment enables the same device structure to adapt to different pipe lengths without requiring retooling or complex reconfiguration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The unloading flap serves multiple functions: it acts as a guide surface for short pipe sections and as an extended support structure for long pipe sections. This multi-functionality allows a single device component to handle various pipe lengths, improving versatility without proportionally increasing device complexity.

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

2Manufacturing precision

If the unloading flap is positioned to support long pipe sections, then long pipes can be processed with precision, but short pipe sections cannot be properly unloaded

Engineering Contradiction:
Improvecutting precision for long pipesVSAvoidcompatibility with short pipe sections
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The unloading flap's position is dynamically adjusted based on pipe length. For long pipes requiring precision support, the flap pivots to the extended support position. For short pipes, the flap rotates to the retracted position, clearing the unloading path. This dynamic positioning resolves the conflict between needing support for precision and requiring clear path for unloading.

Inventive Principle:
Principle #15Dynamics

3Ease of operation

If the unloading flap is positioned to clear short pipe sections, then short pipes can be unloaded easily, but long pipe sections lack sufficient support during processing

Engineering Contradiction:
Improveunloading ease for short pipesVSAvoidprocessing precision for long pipes
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system dynamically repositions the unloading flap based on the pipe length being processed. When short pipes are being unloaded, the flap rotates to clear the path, enabling easy operation. When long pipes require processing, the flap pivots to the support position, providing necessary structural support for precision cutting.

Inventive Principle:
Principle #15Dynamics

4Manufacturing precision

If a support means is added to support the pipe, then processing precision increases, but the device complexity increases

Engineering Contradiction:
Improveprocessing precisionVSAvoidunloading device structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The unloading flap is designed to serve dual purposes: it functions as the primary unloading surface for all pipe lengths and simultaneously serves as a support means when extended. This multi-functionality provides the necessary support for processing precision without adding separate, dedicated support structures that would increase device complexity.

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

Solution Approach 2:

The support function is merged with the unloading flap itself rather than being a separate component. The flap's structural design allows it to provide support when positioned appropriately, combining the support function and unloading function into a single integrated component, thereby improving precision without proportionally increasing complexity.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4003639B1Discharge device for discharging a pipe section, pipe machining apparatus and method for discharging a pipe section
Publication Date: 2024.05.15 TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
  • EP4003639B1 patent drawingFigure 1
  • EP4003639B1 patent drawingFigure 2
  • EP4003639B1 patent drawingFigure 3

AI summary

The invention relates to a discharge device (30) for discharging a pipe section (3) which has been machined from a pipe (2) by means of a machining apparatus (20), the discharge device (30) having a pipe guiding axis (X) along which the pipe (2) is guided lengthwise as it comes from the machining device (20). A discharge flap (32.1, 32.2) is provided which can be hinged out of a falling position into a discharge position about a hinge axis (A) of the discharge flap (32.1, 32.2) running parallel to the pipe guiding axis (X), the at least one discharge flap (32.1, 32.2) being designed in such a way that in the falling position the pipe section (3) can fall past the at least one discharge flap (32.1, 32.2) and in the discharge position the pipe section (3) can be discharged.