Acceleration Roller Positioning for Short Waste Part Transport
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Solution Overview
Problem
Existing devices for marking and removing defects in wooden workpieces have limited capacity due to the large distance between the acceleration roller and the separating device, which restricts the ability to efficiently handle short sawn-off parts.
Innovation Solution
The acceleration roller is positioned very close to the separating device, eliminating the need for a feed element between them, allowing short sawn-off parts to be immediately picked up and transported, thereby increasing throughput and handling capacity regardless of part length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a feed element is placed between the separating device and the acceleration roller, then the workpiece can be held during transport, but the distance between the acceleration roller and the separating device increases, reducing throughput
Solution Approach 1:
The feed element is extracted from the transport path between the separating device and the acceleration roller. By removing this intermediate component, the distance between the acceleration roller and separating device is minimized, allowing short workpiece parts to be immediately accelerated without waiting for feed roller transport, thereby maximizing throughput while the acceleration roller itself provides the necessary holding function during acceleration
2Ease of manufacture
If the acceleration roller is positioned far from the separating device, then there is space for feed elements, but short sawn-off parts cannot be immediately picked up and transported
Solution Approach 1:
The feed element is removed from the system in the critical zone between the separating device and acceleration roller. This extraction eliminates the time delay for short parts while the acceleration roller is positioned as close as possible to the separating device, enabling immediate pickup and acceleration of short sawn-off parts without compromising manufacturability
Solution Approach 2:
The acceleration roller is positioned to act immediately after separation, performing the acceleration function at the earliest possible moment. This preliminary action ensures that even very short parts are caught and accelerated without delay, preventing them from being lost or causing bottlenecks in the transport system
3Reliability
If the feed roller has a large diameter, then it can reliably transport workpieces, but the distance between the acceleration roller and separating device increases, limiting device capacity
Solution Approach 1:
The feed roller is removed from the critical transport path between the separating device and acceleration roller. This eliminates the constraint imposed by the feed roller's large diameter on the positioning of the acceleration roller, allowing the acceleration roller to be placed immediately behind the separating device for maximum device capacity
Solution Approach 2:
The transport device itself serves as the intermediary between the separating device and acceleration roller, eliminating the need for a feed roller in this critical zone. This allows the acceleration roller to be positioned optimally close to the separating device while maintaining reliable transport through the inherent design of the transport device
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 configuration enables high-throughput processing of all sawn-off parts, regardless of length, by ensuring immediate acceleration and reliable transportation, significantly enhancing the device's performance and efficiency.
Implementation Method 1
In the direction of transport of the workpieces behind the saw there is at least one acceleration roller with which the sawn workpiece part forming a good part is accelerated in the direction of transport
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Such devices (3) have a separating element (30) to which the workpieces (2) are fed by means of a transport device (6, 11, 12). A downstream transport device (15, 22) is located behind the separating device (3) to transport the sawn workpiece parts (2'). A feed roller is located between the acceleration roller (17, 18) and the separating device (30). To ensure that even short workpiece parts (2') are transported quickly, the acceleration roller (17, 18) is positioned downstream of the separating device (30) in such a way that there is no feed element between the acceleration roller (17, 18) and the separating device (30) that would engage and transport the sawn workpiece part (2'). The device is used for sorting out waste parts from workpieces on saws.