Bale Wrapper Rocker Table Design
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Solution Overview
Problem
Existing bale wrapping machines face issues with slow-moving wrapping tables, structural complexity, high manufacturing and maintenance costs, and space requirements, particularly in wet and muddy environments.
Innovation Solution
A bale wrapper with a movable wrapping table supported by rockers and support rails, utilizing a hydraulic actuator for efficient movement between receiving and wrapping stations, and featuring a simple, reliable design to reduce operational delays and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a chain-driven mechanism or separate hydraulic cylinders are used to move the wrapping table, then the wrapping table can be moved between stations, but the motion speed is slow causing operational delays
Solution Approach 1:
The patent uses a single hydraulic cylinder to move the wrapping table between receiving and wrapping stations. The hydraulic actuation provides fast, powerful motion that overcomes the slow speed limitation of chain-driven mechanisms while reducing operational delays through rapid table positioning.
2Reliability
If guide tracks and chain-driven mechanisms are used to move the wrapping table, then the table can be positioned between stations, but the structure becomes complex and susceptible to malfunctions in wet and muddy environments
Solution Approach 1:
The patent eliminates guide tracks and chain-driven mechanisms entirely, using only a hydraulic cylinder to move the wrapping table. This extraction of problematic components simplifies the structure and removes the susceptibility to malfunctions in wet and muddy environments while maintaining the essential function of table positioning.
3Stability of the object's composition
If a massive frame is used to support the wrapping apparatus, then the structure is stable, but the space requirement becomes too large for use in moving combination machines
Solution Approach 1:
The patent uses a rocker mechanism that allows the wrapping table to move dynamically between receiving and wrapping stations. This dynamic design replaces the need for a massive static frame, reducing the overall space requirement while maintaining stability during wrapping operations through the rocker's pivoting action.
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
The solution enhances the operational efficiency and reliability of the bale wrapping process, reducing delays and costs while accommodating space constraints, especially in challenging environmental conditions.
Implementation Method 1
The wrapping table is supported by its front edge to the frame with at least one rocker
Implementation Method 2
the first support members comprise support wheels moving along the support surface of the support rail
Implementation Method 3
an actuator for moving the wrapping table between the receiving station and the wrapping station
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e~2
AI summary
The bale wrapper has a frame and a wrapping table (24) which is moveable in relation to the frame, which wrapping table is supported by its front edge to the frame with at least one rocker (26a, 26b). The bale wrapper has a receiving station (12), whereto the wrapping table can be moved to receive a bale, a wrapping station (14), whereto the wrapping table can be moved for the duration of the wrapping of the protective film, an actuator (42) for moving the wrapping table (24) between the receiving station and the wrapping station and a wrapping device for wrapping protective film around the bale. The frame comprises at least one support rail (16a, 16b), which has a longitudinal direction, and the wrapping table has support members (28, 29), with which the wrapping table is supported to said support rail to be moveable in the longitudinal direction of the support rail.