Plastic Bag Inlet Opening With Air Injection Against Static Adhesion
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Solution Overview
Problem
Existing plastic bag opening devices face challenges in completely opening the inlet due to frictional force and static electricity, leading to reduced capacity utilization and potential packaging failures.
Innovation Solution
A plastic bag opening device that uses an elevating member to lift the bag and an air blower to inject air into the inlet, combined with a rotating and movable mechanism to expand the opening, ensuring complete opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only adsorption pads are used to open the plastic bag inlet, then the device structure remains simple, but the inlet cannot be completely opened due to friction and static electricity
Solution Approach 1:
An air blower is introduced as an intermediary device to inject air between the adsorption pads and the plastic bag inlet. This air injection creates a cushion effect that reduces friction and static electricity adhesion, enabling the inlet to open completely while maintaining the simplicity of the adsorption pad structure.
Solution Approach 2:
The invention utilizes pneumatic principles by employing an air blower to generate and inject compressed air into the inlet region. This pneumatic action overcomes the frictional and electrostatic forces preventing opening, achieving reliable inlet opening without complicating the mechanical structure.
2Ease of operation
If adsorption pads alone are used, then the device is simple to operate, but capacity utilization decreases and packaging failures occur
Solution Approach 1:
The air blower serves as a mediator that enhances the opening effectiveness without requiring complex operational procedures. By automatically injecting air to reduce friction and static adhesion, it ensures complete inlet opening, thereby increasing capacity utilization and preventing packaging failures while maintaining ease of operation.
Solution Approach 2:
The invention changes the physical parameters within the inlet region by introducing pressurized air. This parameter change (air pressure and flow) reduces friction and static electricity effects, enabling reliable opening and improving productivity without affecting operational simplicity.
3Use of energy by moving object
If no air injection is used, then energy consumption is low, but the inlet remains difficult to open due to friction and static electricity
Solution Approach 1:
The air blower utilizes pneumatic energy to inject compressed air into the inlet region. This pneumatic action effectively counteracts friction and static electricity forces with minimal energy input, achieving reliable opening while maintaining low energy consumption compared to mechanical alternatives.
Solution Approach 2:
The invention replaces potential mechanical opening mechanisms with a pneumatic field approach. By using air injection to create separation between the adsorption pads and the bag material, it eliminates the need for complex mechanical systems while consuming minimal energy and effectively overcoming friction and static electricity.
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
The device effectively opens the plastic bag inlet, enhancing capacity utilization and preventing packaging defects by overcoming friction and static electricity issues.
Implementation Method 1
an air blower that injects air toward the inlet of the plastic bag adsorbed to the elevating member so that the inlet of the plastic bag is opened to be widened
Implementation Method 2
the inlet of the plastic bag is difficult to open because of frictional force and static electricity
Implementation Method 3
the inlet of the plastic bag is difficult to open because of frictional force and static electricity
Implementation Method 4
an elevating member that lifts the plastic bag in a state in which one surface of the plastic bag is adsorbed
Data Source
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AI summary
The present invention relates to a plastic bag opening device, which opens an inlet of a plastic bag having a pocket shape, including: an elevating member that lifts the plastic bag in a state in which one surface of the plastic bag is adsorbed; and an air blower that injects air toward the inlet of the plastic bag adsorbed to the elevating member so that the inlet of the plastic bag is opened to be widened. Accordingly, the inlet of the plastic bag may be completely opened.