Dispersive Supply Device with Segmented Block Bodies
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Solution Overview
Problem
In combination weighing devices, articles with adhesiveness such as meat with bones often fail to flow from the dispersion table to the screw feeders due to the narrow front opening of the screw feeders, causing them to remain on the dispersion table and circle around.
Innovation Solution
A dispersive supply device with a conical dispersion table and radially arrayed screw feeders, featuring block bodies that alternately restrict and allow articles to enter the gap between conveying portions, ensuring reliable feeding by using first block bodies to prevent entry and second block bodies with inclined surfaces to facilitate entry into the conveying portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the front opening of the screw feeder is made narrow to prevent articles from falling between conveying portions, then articles shorter than the opening are properly contained, but articles longer than the opening cannot enter the conveying portion and remain on the dispersion table
Solution Approach 1:
The block body is divided into multiple segments along the radial direction, with each segment having a different height. This segmentation allows the structure to simultaneously provide restriction for short articles and passage for long articles, resolving the contradiction between containment and passage.
Solution Approach 2:
Different portions of the block body have different heights, creating local variations in the structure. The higher portions restrict short articles while the lower portions allow long articles to pass, addressing the contradiction through localized functional differences.
2Reliability
If guide blocks are used to cover gaps between screw feeders to prevent block meat from falling, then article drop is prevented, but the structure becomes more complex and long articles may ride on the guide blocks
Solution Approach 1:
The block body serves multiple functions simultaneously: it acts as a guide block to prevent article drop, provides segmentation to allow long articles to pass, and creates the necessary structural separation between conveying portions. This multi-functionality reduces the need for additional components.
3Device complexity
If the number of screw feeders is reduced and intervals are widened to simplify the structure, then device complexity is reduced, but gaps between feeders increase making articles more likely to fall
Solution Approach 1:
The block body acts as an intermediary structure between the scattered conveying portions. It fills the gaps created by reduced feeder numbers and wider intervals, providing a physical barrier that prevents article drop while maintaining the simplified configuration.
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 effectively prevents articles longer than the front opening from remaining on the dispersion table, ensuring reliable feeding from the dispersion portion to the conveying portions, enhancing the efficiency of the combination weighing process.
Implementation Method 1
a second block body configured to allow the articles supplied from the dispersion portion to enter the portion between the conveying portions, the second block body including an inclined surface that inclines toward the conveying portions on both sides from a ridge along the radial direction
Data Source
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AI summary
A dispersive supply device (1) includes a dispersion portion (10) configured to disperse articles (G) supplied from above toward a periphery, a plurality of conveying portions (20) radially arrayed around the dispersion portion (10) and configured to further convey the articles (G) supplied from the dispersion portion (10) in radial directions, and a plurality of block bodies (30) arranged between the adjacent conveying portions. The block bodies (30) include a first block body (31) configured to restrict the articles (G) supplied from the dispersion portion (10) from entering a portion between the conveying portions, and a second block body (32) configured to allow the articles (G) supplied from the dispersion portion (10) to enter the portion between the conveying portions. The first block body (31) and the second block body (32) are arranged alternately, or at intervals of the block bodies.