Machining Center Vertical Conveyor Loading Unloading

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Solution Overview

Problem

Current machining centers face inefficiencies in loading and unloading operations, leading to prolonged processing times and reduced productivity when handling elongated workpieces such as furniture components, due to the need for extensive movement of workpiece-holding slides and manual unloading of machined parts.

Innovation Solution

The implementation of a machining center design featuring a workpiece-holding slide with adjustable clamping elements and separate conveyors for loading and unloading, where the loading and unloading operations occur simultaneously by positioning the conveyors at different heights, allowing for concurrent transfer of new and finished workpieces, thereby reducing the time required for these operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the workpiece-holding slide moves extensively between loading and unloading positions, then workpieces can be loaded and unloaded, but processing time increases and productivity decreases

Engineering Contradiction:
Improveloading and unloading operationVSAvoidprocessing time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent introduces a vertical dimension by positioning the loading conveyor at a first height and the unloading conveyor at a second height. This allows loading and unloading operations to occur simultaneously at different vertical levels, eliminating the need for the workpiece-holding slide to travel extensively between loading and unloading positions, thereby reducing processing time while maintaining operational ease.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If manual unloading of machined parts is used, then workpieces can be removed, but productivity is reduced

Engineering Contradiction:
Improveunloading operationVSAvoidproductivity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent implements an automatic unloading system where the unloading conveyor at the second height automatically removes machined workpieces from the workpiece-holding slide. This self-service mechanism eliminates manual intervention, thereby increasing productivity while maintaining ease of operation through automated workpiece removal.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

By positioning the unloading conveyor at a different height and enabling simultaneous loading and unloading operations, the system maintains continuous useful action. While the workpiece-holding slide is loading new workpieces at the first height, it simultaneously unloads machined workpieces at the second height, eliminating idle time and maximizing productivity.

Inventive Principle:
Principle #20Continuity of useful action

3Device complexity

If loading and unloading operations are performed sequentially, then operations are simple, but cycle time increases

Engineering Contradiction:
Improveconveyor arrangementVSAvoidcycle time
Core Design Contradiction:
Device complexityVSDuration of action of moving object

Solution Approach 1:

The patent resolves the contradiction between device complexity and cycle time by utilizing the vertical dimension. The loading conveyor operates at a first height while the unloading conveyor operates at a second height, allowing simultaneous operations without complex horizontal arrangements. This dimensional approach enables parallel processing, reducing cycle time while keeping the device structure relatively simple.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2991811B1Machining center
Publication Date: 2020.03.18 PAOLINO BACCI SRL
  • EP2991811B1 patent drawingFigure 1A
  • EP2991811B1 patent drawingFigure 1B~1C
  • EP2991811B1 patent drawingFigure 2

AI summary

The machining center comprises at least one operating head (5) movable according to a plurality of numerically controlled axes (A, C, X, Z) and at least one workpiece-holding slide (17) movable between a working area and an area where the workpieces to be machined (P1) are loaded on the workpiece-holding slide and machined workpieces (P2) are unloaded from the workpiece-holding slide, and vice versa. Moreover, an insertion system is provided for inserting the workpieces to be machined on the workpiece-holding slide (17), the insertion system being associated with a loading conveyor (31) extending from an area (41) receiving the workpiece to be machined (P1) towards the area (29) of loading the workpieces to be machined on the workpiece-holding slide (17) and unloading the machined workpieces (P2) from the workpiece-holding slide, where the workpieces to be machined are transferred from the loading conveyor to the workpiece-holding slide. At an height different than the height of the insertion system of the workpieces to be machined (P1) there is arranged a removal system for removing the machined workpieces (P2) from the workpiece-holding slide (17), this removal system being associated with an unloading conveyor (33) extending from the area (29) where workpieces to be machined are loaded on the workpiece-holding slide (17) and machined workpieces are unloaded from the workpiece-holding slide (17) towards a gathering area (43) of the machined workpieces (P2), the machined workpieces being transferred from the workpiece-holding slide to the unloading conveyor in said area where workpieces to be machined are loaded on the workpiece-holding slide and machined workpieces are unloaded from the workpiece-holding slide.