Bag Stacking Separation Device for High-Speed Production
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Solution Overview
Problem
Existing bag stacking devices are limited by slow feed rates, which become a bottleneck in high-speed paper bag production, and require excessive space and resources when attempting to increase speed.
Innovation Solution
A device with a separation mechanism that can rapidly insert above the stack to divide it into two, allowing for continuous production without interrupting the flow of new bags, using a combination of suction and mechanical holding devices to manage the separation and formation of stacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the feed rate of the bag-making machine is increased, then the production speed is improved, but the previous stack cannot maintain a sufficient distance at the beginning of the forming of the new stack
Solution Approach 1:
The collection point is divided into multiple collection points arranged in the direction of bag transport. Each collection point can independently form and remove stacks, allowing continuous stack formation while maintaining adequate spacing between stacks even at high feed rates
Solution Approach 2:
The device allows dynamic switching between single-stack and multi-stack formation modes. The control unit can activate additional collection points based on production requirements, enabling the system to adapt to varying speed and spacing requirements
2Productivity
If two collection facilities are provided to increase stack formation speed, then the productivity is improved, but the space requirements and cost increase significantly
Solution Approach 1:
Multiple collection points are arranged in the transport direction (longitudinal dimension) rather than side-by-side (lateral dimension). This utilizes the length of the transport path to accommodate multiple stacks, avoiding increased lateral space requirements while still enabling parallel stack formation
Solution Approach 2:
Multiple collection points share common infrastructure including the bag transport device, control unit, and removal mechanism. This merging of resources allows multiple stacks to be formed simultaneously without proportionally increasing space or cost
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-speed stack formation with minimal space requirements, maintaining production speed and quality by allowing seamless transition between stacks without interrupting the process.
Implementation Method 1
fixes an individual bag from above to the lower run of a suction tape by means of a negative pressure
Implementation Method 2
a separation device which can be inserted into or above the stack at the collection point to divide the stack into a first stack and a second stack
Implementation Method 3
the separation device comprises at least one holding device with which at least the lower bag of the second stack can be held
Data Source
AI summary
A device for forming stacks of bags, preferably bags of paper, which are individually supplied, includes at least a first transport device with which individual bags are taken up, a collection point to which the bags are fed by the transport device and in which a stack of bags can be produced, and a release device with which the bags are released from the transport device and dropped at the collection point. The device has at least one separation device, which can be inserted into or above the stack at the collection point, to divide the stack into a first and a second stack.