Combination Weighing Apparatus Dynamic Acceleration Control
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Solution Overview
Problem
Conventional combination weighing apparatuses face inefficiencies in supplying articles to radial feeders, leading to suboptimal operation rates due to inadequate targeting and distribution.
Innovation Solution
A combination weighing apparatus featuring a distribution table that rotates about a shaft, radially arranged feeders, a drive unit, an acquisition unit to monitor distribution states, and a control unit that adjusts acceleration to direct articles efficiently to radial feeders based on acquired information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the distribution portion rotates at high speed intermittently, then the article can be distributed in the outer circumferential direction, but the article cannot be efficiently supplied to the radial feeder in a targeted manner
Solution Approach 1:
The distribution table rotation speed is dynamically adjusted based on real-time distribution state information. The control unit changes the rotation speed to apply appropriate acceleration to articles, enabling efficient targeted supply to radial feeders while maintaining high productivity. This dynamic adjustment resolves the contradiction between high-speed distribution and targeted supply efficiency.
Solution Approach 2:
The acquisition unit continuously monitors the distribution state of articles on the distribution table and in radial feeders, providing feedback to the control unit. This feedback mechanism enables the system to adjust the distribution table rotation speed in real-time, ensuring articles are efficiently supplied to feeders that need them while maintaining overall high-speed operation.
2Productivity
If the distribution table rotates continuously, then articles can be distributed, but articles cannot be efficiently directed to specific radial feeders based on distribution state
Solution Approach 1:
The system transitions from continuous rotation to dynamic rotation with variable acceleration. The control unit adjusts the distribution table rotation speed based on real-time distribution state, creating controlled acceleration phases that precisely position articles at radial feeders while maintaining continuous operational flow.
Solution Approach 2:
The rotation speed parameter of the distribution table is continuously adjusted based on distribution state information. By changing the rotation speed parameter dynamically, the system achieves precise article positioning at specific radial feeders while maintaining continuous distribution operation.
3Ease of operation
If the distribution table rotates at variable speeds, then articles can be targeted to radial feeders, but the system complexity increases
Solution Approach 1:
The control unit performs multiple functions: it receives distribution state information from the acquisition unit, processes this information to determine optimal distribution strategies, and controls the drive unit to adjust rotation speed. This multi-functionality reduces the need for separate dedicated components, managing system complexity while achieving targeted article supply.
Solution Approach 2:
The feedback loop integrates information acquisition, processing, and control execution within a unified system. The acquisition unit monitors distribution state, the control unit processes this information and generates control commands, and the drive unit executes speed adjustments. This integrated feedback system achieves targeted supply without requiring complex separate control mechanisms.
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 efficient article supply to radial feeders, increasing operation rates by optimizing the distribution and discharge of articles, thereby improving yield and reducing empty heads.
Implementation Method 1
a distribution table that rotates about a rotation shaft to distribute articles given from an outside in a radial direction
Implementation Method 2
the control unit controls the drive unit based on the information regarding the distribution state of the articles acquired by the acquisition unit to change an acceleration applied to the article on the distribution table
Data Source
AI summary
A combination weighing apparatus (1) includes: a distribution table (11) that rotates about a rotation shaft (X) to distribute articles (100) given from an outside in a radial direction; a plurality of radial feeders (20) that are arranged radially around the distribution table (11), receive the articles (100) discharged from the distribution table (11), and supply the articles (100) to corresponding hoppers, respectively; a drive unit (50) that is connected to the rotation shaft (X) and rotates the distribution table (11); an acquisition unit (51) that acquires information regarding a distribution state of the articles (100) in the distribution table (11) and the radial feeders (20); and a control unit (52) that controls the drive unit (50), wherein the control unit (52) controls the drive unit (50) based on the information regarding the distribution state of the articles (100) acquired by the acquisition unit (51) to change an acceleration applied to the article (100) on the distribution table (11) and move the article (100) on the distribution table (11) into a desired radial feeder (20).