Hide Roller Finishing Machine with Adjustable Positioning Rollers
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Solution Overview
Problem
Existing roller finishing machines for hides experience significant variations in the longitudinal extension of the rubber-coated mat, leading to mechanical stress and reduced mat life, as well as difficulties in maintaining the mat centered during operation.
Innovation Solution
The machine employs a system of adjustable positioning rollers, hinged to a connection bar or rotating arms, actuated by hydraulic, pneumatic, or electrical elements, to maintain the longitudinal extension of the mat substantially constant, with variations of less than 1 mm, even as the geometry changes, ensuring consistent tension and centering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the roller position is adjusted to optimize finishing quality, then the coating quality improves, but the longitudinal extension of the mat varies significantly causing mechanical stress
Solution Approach 1:
The patent applies the dynamics principle by making the roller positioning system adjustable and dynamic rather than fixed. The roller can be positioned at different locations along the mat width, and the positioning mechanism allows for dynamic adjustment during operation. This dynamic capability enables optimization of coating quality for different hide types while the system adapts to minimize mat stress through controlled geometry changes.
Solution Approach 2:
The patent implements parameter changes by modifying the roller position parameter along the mat width to optimize coating quality. Additionally, the system controls the geometry variation parameter to remain within acceptable limits, ensuring that while the roller position changes for different finishing requirements, the resulting mat extension variation stays below 5mm, preventing excessive mechanical stress.
2Manufacturing precision
If the roller position is adjusted to optimize finishing quality, then the coating quality improves, but the mat experiences mechanical stress and reduced life
Solution Approach 1:
The patent implements parameter changes by modifying the roller position parameter along the mat width to optimize coating quality. Additionally, the system controls the geometry variation parameter to remain within acceptable limits, ensuring that while the roller position changes for different finishing requirements, the resulting mat extension variation stays below 5mm, preventing excessive mechanical stress.
Solution Approach 2:
The patent applies beforehand cushioning by pre-establishing geometric constraints and positioning limits for the roller system. By designing the positioning mechanism to inherently limit geometry variation and mat extension to acceptable ranges, the system prevents excessive stress accumulation before it can damage the mat, thereby extending mat life while maintaining coating quality optimization capability.
3Adaptability or versatility
If the mat geometry varies during operation, then the roller can be repositioned for different hide types, but the mat becomes difficult to keep centered
Solution Approach 1:
The patent applies the dynamics principle by making the roller positioning system adjustable and dynamic rather than fixed. The roller can be positioned at different locations along the mat width, and the positioning mechanism allows for dynamic adjustment during operation. This dynamic capability enables optimization of coating quality for different hide types while the system adapts to minimize mat stress through controlled geometry changes.
Solution Approach 2:
The patent implements parameter changes by modifying the roller position parameter along the mat width to optimize coating quality. Additionally, the system controls the geometry variation parameter to remain within acceptable limits, ensuring that while the roller position changes for different finishing requirements, the resulting mat extension variation stays below 5mm, preventing excessive mechanical stress.
Data Source
Figure 1
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AI summary
This invention relates to a machine for roller finishing of hides, which comprises a rubber-coated mat (1), which transports said hides (P), wherein an engraved roller (2) deposits a uniform liquid film (L) on the surface of the aforementioned, a contrast roller (4) being present, arranged below the engraved roller (2), a return roller (5) being also provided, arranged inside the volume delimited by the rubber-coated mat (1), at which the hides (P) are deposited on a subsequent conveyor means (6), said machine also providing means (20) for washing and drying the rubber-coated mat (1), a first positioning roller (7) being also provided, with adjustable positioning, the positioning variation of said first positioning roller (7) determining the variation of the contact area between the hides (P) and the engraved roller (2). Said machine provides that at least one of the rollers arranged inside the volume delimited by the rubber-coated mat (1) and in contact with the inner surface thereof, distinct from the contrast roller (4) and from the first positioning roller (7), is also equipped with means adapted to enable its adjustable positioning and is able to determine the variation of the geometry of the aforesaid mat (1).