Packaging Machine Conveyor Drive and Bottom Tapping Mechanism
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Solution Overview
Problem
Conventional packaging machines require substantial time to shape large-sized packaging bags to a predetermined thickness, leading to reduced production efficiency.
Innovation Solution
A packaging machine equipped with a conveyor drive mechanism and a bottom tapping mechanism that synchronizes the movement of side conveyors and a receiving plate to press and tap the packaging bag, ensuring consistent thickness without extending the time required for shaping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the conventional shaping device with vibrators and presser plates is used, then small-sized packaging bags (1-10 kg) can be shaped to predetermined thickness without variations, but large-sized packaging bags (20 kg) require substantial shaping time that reduces production efficiency
Solution Approach 1:
The side conveyors are made movable rather than fixed, allowing them to dynamically adjust their position and pressing force. The conveyors can move forward and backward in synchronization with the packaging bag movement, enabling adaptive shaping that works for both small and large bags without requiring extended shaping time
Solution Approach 2:
The shaping mechanism transitions from vertical pressing (presser plates moving up and down) to horizontal pressing (side conveyors moving forward and backward). This dimensional change allows the shaping force to be applied more effectively across large-sized bags, achieving uniform thickness without substantially increasing shaping time
2Manufacturing precision
If the receiving plate is moved upward to support the bottom of the packaging bag during shaping, then the packaging bag can be shaped vertically, but the shaping process requires substantial time for large-sized bags
Solution Approach 1:
The side conveyors operate continuously during the shaping process, moving forward to press the bag and backward to reset, maintaining continuous shaping action throughout the bag's passage through the shaping zone. This continuous action achieves uniform thickness more efficiently than intermittent pressing
Solution Approach 2:
The side conveyors begin pressing the packaging bag early in the shaping zone, before the bag reaches the main shaping area. This preliminary action pre-compresses the bag material, reducing the time required for final thickness adjustment and enabling faster overall shaping
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 the shaping of large-sized packaging bags to a predetermined thickness without reducing production efficiency, by increasing the time required for shaping without affecting preceding or following steps.
Implementation Method 1
The side conveyors are capable of pressing the packaging bag filled with the article, from both sides of the packaging bag, when moved forward
Implementation Method 2
The receiving plate is moved up and down so that a bottom of the packaging bag is tapped, when the packaging bag filled with the article is stopped
Data Source
AI summary
A packaging machine includes a shaping device including a conveyor drive mechanism and a bottom tapping mechanism and shaping a packaging bag filled with article so that the bag has a predetermined thickness. The conveyor drive mechanism includes a pair of side conveyors movable forward and backward. The conveyors are capable of pressing the bag filled with the article when moved forward. The conveyors are configured to be run in parallel to the moving direction of the bag substantially in synchronization with movement of the bag. The tapping mechanism includes a receiving plate disposed over the filling step and one or more steps following the filling step. The receiving plate is moved up and down so that the bag bottom is tapped, when the bag filled with the article is stopped between the filling step and one or more steps following the filling step.