Packing Apparatus Dynamic Pressing Force Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cardboard boxes with low strength, such as thin or reused ones, are prone to deformation or damage when traditional packing apparatuses apply pressing force to affix sealing tape, leading to sealing errors if the force is reduced to prevent damage.
Innovation Solution
A packing apparatus with a sealing mechanism that includes a timing sensing section and a pressing force control section, which reduces the pressing force after initiating tape affixation on the cardboard box, using an elastic member and actuator to control the pressing force, and a guide to prevent deformation, ensuring accurate tape affixation without damaging the box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressing member exerts pressing force on the cardboard box to affix the tape, then the tape is caused to be in intimate contact with the cardboard box, but the cardboard box may be deformed or damaged
Solution Approach 1:
The pressing force control section dynamically adjusts the pressing force based on real-time feedback from the timing sensing section. The pressing force is reduced after tape affixation is initiated, transforming the static pressing force into a dynamic, time-varying force that adapts to the affixation process stages.
Solution Approach 2:
The timing sensing section detects when tape affixation is initiated and provides feedback to the pressing force control section, which then adjusts the pressing force accordingly. This feedback loop ensures the pressing force is optimized at different stages of the affixation process.
2Strength
If the magnitude of the pressing force exerted by the pressing member on the cardboard box is reduced to prevent deformation or damage, then the cardboard box is protected, but the tape may not be successfully affixed on the cardboard box
Solution Approach 1:
The pressing force is applied in a periodic manner with different magnitudes at different stages: initially at a higher magnitude to ensure tape affixation, then reduced to a lower magnitude to prevent box damage. This periodic variation in pressing force magnitude resolves the contradiction between affixation reliability and box protection.
Solution Approach 2:
The timing sensing section detects the initiation of tape affixation in advance, allowing the pressing force control section to proactively adjust the pressing force magnitude before damage can occur. This preliminary detection and adjustment ensures both successful affixation and box protection.
3Reliability
If the pressing force is maintained at a high level to ensure tape affixation, then sealing errors are prevented, but the cardboard box may be deformed or damaged
Solution Approach 1:
The pressing force transitions from a static high level to a dynamic, time-varying force that is initially high to ensure sealing reliability, then reduced to minimize harmful effects on the cardboard box. This dynamic adjustment eliminates the need to maintain high pressing force throughout the entire process.
Solution Approach 2:
The high pressing force is applied only briefly during the critical tape affixation phase, then quickly reduced. This rushing through the high-force phase minimizes the duration of harmful effects while ensuring successful sealing.
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 solution effectively suppresses sealing errors and prevents cardboard box deformation by adjusting the pressing force and using a guide to maintain the box's shape during tape affixation.
Implementation Method 1
an elastic member to exert elastic force thereon to cause the pressing member to produce pressing force
Data Source
AI summary
A packing apparatus includes a sealing mechanism, a timing sensing section, and a control section. The sealing mechanism affixes tape continuously on portions of a cardboard box transported with major flaps thereof folded. The sealing mechanism includes an affixing roller to press the tape against a first side surface and the major flaps. The timing sensing section senses the timing at which the affixing of the tape on the first side surface is initiated. The control section controls pressing force exerted by the affixing roller, based on a result of the sensing performed by the timing sensing section, in such a way that the pressing force is reduced after the affixing of the tape on the first side surface is initiated.