Adjustable Eccentric Packing Machine Stroke Mechanism
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Solution Overview
Problem
Traditional packing machines with a band-compressing stroke are not adjustable, leading to inadequate tightening of packing bands or excessive tension, which cannot accommodate varying thicknesses effectively.
Innovation Solution
The packing machine incorporates a compressing base with a pulley and an eccentric shaft, along with an adjusting board and polygonal bar, allowing for adjustable band-compressing stroke by altering the eccentric distance, enabling precise adjustment for different packing band thicknesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the band-compressing stroke is fixed in traditional packing machines, then the structure is simple, but it cannot accommodate different thicknesses of packing bands and clasps
Solution Approach 1:
The patent applies the dynamics principle by making the band-compressing stroke adjustable rather than fixed. The compressing base includes an adjusting board with multiple positioning holes that allow the eccentric shaft to be positioned at different distances from the rotation axis, enabling dynamic adjustment of the compression stroke to match different band and clasp thicknesses.
Solution Approach 2:
The patent implements parameter changes by modifying the eccentric distance parameter. The adjusting board provides multiple preset positions for the eccentric shaft, each corresponding to a different eccentric distance. By changing this parameter, the band-compressing stroke is adjusted to accommodate varying thicknesses without requiring complete redesign of the compression mechanism.
2Adaptability or versatility
If the band-compressing stroke is too large, then thick bands can be accommodated, but the packing band may be broken due to excessive tension
Solution Approach 1:
The adjustable stroke mechanism allows the system to dynamically adapt the compression distance to the actual thickness of the band and clasp combination. By positioning the eccentric shaft at the appropriate distance on the adjusting board, the compression stroke is optimized to provide sufficient force for thick bands while preventing excessive tension that would cause breakage.
Solution Approach 2:
The eccentric distance parameter is adjusted to match the thickness of the packing materials. For thicker bands and clasps, a larger eccentric distance provides a longer compression stroke. For thinner materials, a smaller eccentric distance reduces the stroke length, preventing over-compression and band breakage.
3Object-affected harmful factors
If the band-compressing stroke is too small, then band breakage is prevented, but the clasp cannot tighten the packing band effectively
Solution Approach 1:
The adjustable stroke mechanism enables the compression distance to be dynamically matched to the requirements of different packing configurations. By selecting the appropriate eccentric shaft position on the adjusting board, sufficient compression force is applied to ensure effective tightening by the clasp without applying excessive force that would break the band.
Solution Approach 2:
The eccentric distance parameter is optimized to provide the minimum necessary compression stroke for effective tightening. By adjusting this parameter, the system ensures that the clasp can adequately tighten the packing band while avoiding compression distances that would be insufficient for thick materials or excessive for thin materials.
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
This solution allows for easy adjustment of the band-compressing stroke, ensuring optimal packing strength by accommodating various band thicknesses, preventing band breakage and ensuring consistent tightening.
Implementation Method 1
The eccentric shaft fitted with the compressing bar is provided with a polygonal bar projected axially at its bottom... the eccentric shaft can be turned relatively to alter the band-compressing stroke
Data Source
AI summary
A packing machine with an adjustable band-compressing stroke includes a compressing base provided with an accommodating chamber for installing a pulley, and a compressing device. A shaft passes through the pulley and two penetrating holes bored in two sides of the accommodating chamber. A compressing block is set under the pulley. The compressing device is composed of a compressing handle, a compressing bar, an eccentric shaft fitted in the compressing bar and having a polygonal bar on its bottom, and an adjusting board having a polygonal hole and an arc-like hole. The polygonal bar is engaged with the polygonal hole to enable the adjusting board to turn the eccentric shaft for altering the band-compressing stroke.