Metering Roller Layout for Multi-Row Powder Dose Filling
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Solution Overview
Problem
Conventional roller feeders are limited to filling one row of target containers per cycle, requiring additional equipment and space for high-capacity filling machines, especially when dealing with powders that are difficult to dose.
Innovation Solution
A roller feeder design where at least two metering openings are combined into a common section, allowing simultaneous filling of multiple rows of target containers with a single operating cycle, utilizing a rotary drive for pulsed rotation and aligned metering openings to ensure precise filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional roller feeder with single-row metering openings is used, then the device complexity is low, but the productivity is limited to one row per cycle requiring additional equipment for high-capacity filling
Solution Approach 1:
The roller is segmented into multiple independent metering sections around its circumference, with each section containing metering openings arranged in multiple rows. This segmentation allows each section to independently fill different rows of target containers simultaneously, achieving multi-row filling capability without requiring multiple separate fillers.
Solution Approach 2:
The invention transitions from a single-row arrangement to a multi-row arrangement by utilizing the circumferential dimension of the roller. Metering openings are distributed around the circumference in multiple rows, allowing the single roller to service multiple rows of target containers in one rotating cycle, effectively adding a dimensional aspect to the filling operation.
2Productivity
If multiple roller fillers are arranged to fill multiple rows simultaneously, then the productivity increases, but the installation space requirement increases significantly
Solution Approach 1:
Multiple filling functions that would traditionally require separate roller fillers are merged into a single roller device. The roller integrates multiple metering sections with multi-row metering openings, combining the capabilities of multiple independent fillers into one compact unit, thereby reducing installation space while maintaining high productivity.
Solution Approach 2:
The single roller feeder is designed to perform multiple filling functions simultaneously by incorporating metering openings arranged in multiple rows. This universal design allows one device to replace multiple specialized fillers, achieving multi-row filling capability without proportionally increasing installation space.
3Productivity
If metering openings are arranged in multiple rows on a single roller, then the productivity increases, but the manufacturing precision requirement increases to ensure accurate alignment
Solution Approach 1:
The roller is divided into distinct metering sections with clearly defined circumferential positions. Each section's metering openings are precisely positioned relative to the roller's rotational axis and to each other, creating modular units that are easier to manufacture and align accurately compared to a monolithic multi-row design.
4Manufacturing precision
If a single roller filler is used for single-row filling, then the manufacturing precision is easier to maintain, but the productivity is limited and requires additional equipment for high-capacity operations
Solution Approach 1:
The roller is segmented into multiple metering sections with metering openings arranged in multiple rows around the circumference. This segmentation allows the system to maintain the simplicity and precision of single-row metering while achieving multi-row filling capacity, effectively scaling productivity without proportionally increasing manufacturing complexity.
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
Enables high-capacity filling without additional space or time, ensuring precise and homogeneous filling of multiple rows of target containers with improved process reliability and accuracy.
Implementation Method 1
the powdered product is drawn from the supply into the row of metering openings, for example, under the influence of a vacuum
Implementation Method 2
the powdered product is drawn from the supply into the row of metering openings, for example, under the influence of a vacuum
Implementation Method 3
the previously created metered quantities are ejected from the metering openings, for example, by means of positive pressure
Data Source
Figure 1
AI summary
The invention relates to a roller feeder (3) for generating individual doses (2) of a powdered product (1). The roller feeder (3) comprises a product reservoir (4) arranged in a filling position (I), a metering roller (5), and a rotary drive (M) for the metering roller (5). The metering roller (5) has metering openings (7, 7') distributed around its circumference. At least two metering openings (7, 7') spaced apart from each other in a circumferential direction (U) of the metering roller (5) are combined to form a common metering section (12). The rotary drive (M) is designed for a timed rotation of the metering roller (5) about a rotary axis (19) such that a single metering section (12) with the associated metering openings (7, 7') cyclically comes to be in at least the filling position (I) and in an ejection position (III).