Deburring Machine Pressure Belt Segmented Roller
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Solution Overview
Problem
Existing deburring machines face challenges in achieving a large flexibility range with sufficient counter-pressure for burr removal, while also being easy to handle and cost-effective, as they often require frequent changes of contact rollers and sanding sheets to accommodate different workpiece requirements, leading to high expenses and complexity.
Innovation Solution
The deburring machine incorporates a circulating pressure belt in addition to the grinding belt, allowing for adjustable counter-pressure and hardness without changing the contact roller, using a pressure belt that can be tensioned independently to prevent damage from sharp burrs and accommodate varying workpiece irregularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a hard contact roller covering (50° Shore to 70° Shore) is used, then high counter-pressure and burr removal efficiency are achieved, but the flexibility to accommodate workpiece irregularities and thermal warping is reduced
Solution Approach 1:
The contact roller system is segmented into two independent functional layers: a hard wearing surface layer (grinding belt) and a soft flexible underlying layer (cover). This segmentation allows each layer to perform its specialized function - the hard surface provides burr removal while the soft layer provides flexibility and shock absorption.
Solution Approach 2:
The contact roller uses a composite structure combining a hard outer covering (Shore 50-70) for burr removal with a soft inner layer (Shore 30-50) for flexibility. This composite material approach resolves the contradiction by integrating both hard and soft properties in a single roller system.
2Adaptability or versatility
If a soft contact roller covering (30° Shore to 40° Shore) is used, then flexibility and workpiece contour following are improved, but counter-pressure and burr removal effectiveness are reduced
Solution Approach 1:
The contact roller system is segmented into two independent functional layers: a hard wearing surface layer (grinding belt) and a soft flexible underlying layer (cover). This segmentation allows each layer to perform its specialized function - the hard surface provides burr removal while the soft layer provides flexibility and shock absorption.
Solution Approach 2:
The contact roller uses a composite structure combining a hard outer covering (Shore 50-70) for burr removal with a soft inner layer (Shore 30-50) for flexibility. This composite material approach resolves the contradiction by integrating both hard and soft properties in a single roller system.
3Use of energy by moving object
If the grinding belt is tensioned tightly to prevent slippage, then power transmission efficiency is improved, but wear on the grinding belt and thermal load on the workpiece increase
Solution Approach 1:
The soft underlying layer (Shore 30-50) acts as a cushioning element between the hard grinding belt and the workpiece. This beforehand cushioning reduces the impact and friction forces, thereby reducing grinding belt wear and thermal load while maintaining adequate power transmission.
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 enables effective burr removal with a softer covering, increased resilience, and reduced wear on the grinding belt, allowing for efficient processing of diverse workpieces without the need for frequent contact roller changes, thus enhancing flexibility and reducing operational costs.
Implementation Method 1
the flexibility of the hard surface is low... Because the known vulcanization processes do not permit softer hardnesses, the rubber linings are often grooved in a spiral or diamond shape in order to make the covering of the contact roller softer
Implementation Method 2
The endlessly revolving grinding belt is stretched so tightly that there is no, or at least no slippage worth mentioning, between the contact roller and the grinding belt
Implementation Method 3
an endlessly revolving grinding belt is provided around this contact roller, on the outside of which the actual grinding means is attached
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a deburring machine for deburring metal workpieces, comprising an endlessly circulating abrasive belt (7), a contact roller (3) for pressing the abrasive belt (7) onto the workpiece (2), and a tension roller (8) for tensioning the abrasive belt (7), wherein the contact roller (3) is surrounded by a flexible covering (4). Such a deburring machine, offering a large compliance range while maintaining sufficient counter-pressure at the burr for deburring and being much easier to handle, is achieved by providing an endless pressure belt (5) circulating around the contact roller (3) and a second roller (9) between the contact roller (3) and the abrasive belt (7).