Bag Loading Apparatus Parallel Stacking Control
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Solution Overview
Problem
Existing bag loading apparatuses require longer times to stack bags due to the need for individual bag orientation changes, reducing productivity and increasing the time to achieve even bundle heights.
Innovation Solution
A bag loading apparatus with multiple loading units and a control system that allows for simultaneous transport and stacking of bags in multiple lines, with the control unit managing the orientation and placement of bags to achieve even heights without individual orientation changes, using a transport unit, loading units, and a discharge unit to form bundles with even thickness across the width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a sucker is used to suck and carry bags one by one from bag discharging conveyer to bag accumulating conveyer, then bags can be transported and stacked, but the time required to stack a plurality of bags becomes longer and productivity is reduced
Solution Approach 1:
The invention divides the bag stacking process into multiple parallel lines (first line and second line), each handled by dedicated loading units. This segmentation allows simultaneous processing of multiple bag streams, reducing total stacking time while maintaining even bundle heights.
Solution Approach 2:
Bags are loaded onto the discharge unit in advance before final stacking. The first loading unit loads bags onto the discharge unit, which then positions them for stacking under the second loading unit. This preliminary loading action eliminates the need for sequential one-by-one handling.
2Manufacturing precision
If the orientation of bags is changed when carrying by sucker, then bags with thicker bottom parts do not collapse when stacked, but time is required to change orientation which reduces productivity
Solution Approach 1:
The invention separates the bag handling into distinct lines where bags maintain their original orientation throughout the process. The first line handles bags with thicker bottom parts and the second line handles bags with thinner bottom parts, eliminating the need for orientation changes while achieving even bundle heights through strategic line assignment.
Solution Approach 2:
Instead of changing bag orientation to achieve even stacking, the invention inverts the approach by assigning different orientations to different lines and using the discharge unit to position bags for stacking. This inversion eliminates the time-consuming orientation change operation while maintaining stacking quality.
3Productivity
If multiple loading units are used to load bags from multiple lines simultaneously, then stacking time is reduced, but device complexity increases
Solution Approach 1:
The discharge unit serves multiple functions: it acts as a temporary holding area for bags from the first loading unit, positions bags for stacking under the second loading unit, and facilitates the transfer of bags between lines. This multi-functionality reduces the need for additional dedicated components, managing complexity while maintaining high productivity.
Data Source
AI summary
Provided is a bag loading apparatus including: a first loading unit configured to load bags of a first line; a second loading unit configured to load bags of a second line; a discharge unit; and a control unit, and the control unit controls the first loading unit to drop the plurality of bags of the first line from the first loading unit onto the discharge unit, controls the discharge unit to move the plurality of bags of the first line dropped onto the discharge unit to an area under the plurality of bags of the second line loaded on the second loading unit, and controls the second loading unit to drop the plurality of bags of the second line from the second loading unit-onto the plurality of bags of the first line.