Adjustable Collar Forming Device for Elongated Workpieces
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Solution Overview
Problem
Existing bundling devices for elongate workpieces, such as wood, face issues with structural complexity, high cost, and aesthetic concerns due to the need for multiple collaring units and varying strap distances, which can lead to collisions and uneven appearances, especially with curved pieces and varying lengths.
Innovation Solution
A bundling device with adjustable bundle-forming units that can be adjusted in the longitudinal direction of the workpieces, allowing for optimal positioning and strapping regardless of length, featuring a lifting unit for layer support, a support unit with an adjustable tongue, and a hold-down device to prevent unintentional movement, enabling efficient bundling and strapping with a simpler design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large number of bundling units are arranged at fixed intervals, then workpieces of different lengths can be bundled, but the device becomes structurally complex and expensive
Solution Approach 1:
The bundling unit is made longitudinally adjustable along the workpieces, transforming a static fixed-position system into a dynamic reconfigurable one. This allows a single bundling unit to adapt to different workpiece lengths by moving to the appropriate position, eliminating the need for multiple fixed bundling units and thereby reducing structural complexity while maintaining versatility
Solution Approach 2:
The single adjustable bundling unit serves multiple functions by being able to position itself at different locations along workpieces of varying lengths. This universal bundling unit can perform the strapping function for any workpiece length within its adjustment range, replacing what would traditionally require multiple specialized bundling units
2Adaptability or versatility
If a large number of bundling units are used, then workpieces of different lengths can be bundled, but the positioning of ejection devices and strapping stations is restricted
Solution Approach 1:
The ejection devices and strapping stations are made longitudinally adjustable along with the bundling unit, allowing their positions to be dynamically reconfigured based on workpiece length. This ensures optimal positioning for ejection and strapping operations regardless of the number or length of workpieces being bundled
3Productivity
If the outer strapping has different distances to the two ends of the wooden parts, then bundling can be performed, but the appearance becomes aesthetically unappealing
Solution Approach 1:
The control unit receives information about workpiece length and automatically calculates and adjusts the longitudinal position of the bundling unit to achieve symmetric strapping placement. This feedback-controlled positioning ensures that the outer strapping is equidistant from both ends of the workpieces, producing an aesthetically pleasing appearance while maintaining efficient bundling operations
4Adaptability or versatility
If workpieces have large overhang beyond the outer lashing units, then long workpieces can be bundled, but curved wooden parts cause malfunctions due to collisions
Solution Approach 1:
The bundling unit's longitudinal position is dynamically adjusted based on workpiece length and curvature characteristics. This allows the system to optimize the overhang distance, reducing it to minimal levels that prevent collisions and malfunctions while still accommodating long workpieces. The adjustable position ensures that curved portions are properly supported and aligned during the strapping process
Data Source
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AI summary
The bundle forming device is designed for elongated workpieces (5), in particular wooden parts, and comprises at least two bundle forming units. These units include at least one transport device (4) for the workpieces (5) and at least one bundle forming station (39) with at least one support (63) for the bundle to be formed. At least one bundle forming unit is adjustable in the longitudinal direction of the workpieces (5). When bundling the elongated workpieces (5), at least two bundle forming units operate simultaneously side by side, each forming a bundle from the workpieces (5).