Adjustable Pressure Pieces for Perpendicular Hose Cutting
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Solution Overview
Problem
Conventional hose cutting machines struggle to produce ideal, perpendicular cuts in hoses used for hydraulic applications, especially when hoses are reinforced with steel wire, leading to suboptimal geometry and cleanliness of the cut, which can result in reduced reliability and potential failures.
Innovation Solution
The hose cutting machine incorporates adjustably attached pressure pieces that allow for targeted asymmetry of hose contact surfaces relative to the parting plane, enabling angular and parallel adjustments to compensate for deviations in hose dimensions and reinforcement materials, ensuring a more precise cut.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional hose cutting machines with fixed pressure pieces are used, then the device structure is simple, but the cutting precision and quality deteriorate when cutting reinforced hoses
Solution Approach 1:
The pressure pieces are made adjustable rather than fixed, allowing the hose contact surfaces to be positioned at different locations relative to the parting plane. This dynamic adjustment capability enables the cutting machine to adapt to different hose types and achieve ideal cutting quality while maintaining reasonable device structure.
Solution Approach 2:
The position parameters of the pressure pieces are made variable, allowing adjustment of the hose contact surface locations. By changing these parameters, the machine can compensate for deviations caused by different hose reinforcements and achieve consistent cutting precision across various hose types.
2Manufacturing precision
If symmetric pressure pieces are used, then the device structure is simple, but the cutting quality deteriorates due to inability to compensate for hose variations
Solution Approach 1:
The pressure pieces are designed with asymmetric adjustability, where at least one pressure piece can be positioned at a different location relative to the parting plane compared to the other. This asymmetric configuration allows compensation for hose variations and achieves ideal cutting quality, particularly for reinforced hoses with steel wire inserts.
Solution Approach 2:
Different pressure pieces or different regions of the same pressure piece can be positioned differently relative to the parting plane, creating local quality variations that are tailored to specific hose types and reinforcement patterns, thereby optimizing cutting quality for each application.
3Reliability
If fixed hose contact surfaces are used, then the device is easy to operate, but the reliability of hydraulic lines deteriorates due to poor cut quality
Solution Approach 1:
The pressure pieces incorporate adjustable mechanisms that allow operators to modify the hose contact surface positions according to specific hose requirements. This dynamic adjustment capability ensures reliable cutting quality for different hose types while maintaining ease of operation through intuitive adjustment interfaces.
Solution Approach 2:
The adjustable pressure piece system allows operators to self-adjust the device for different hose types without requiring complex tooling or specialized procedures. The adjustment mechanisms are designed to be user-friendly, enabling operators to achieve ideal cutting quality independently.
Data Source
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AI summary
The invention relates to a machine for cutting tubes, comprising a support table, at least two tube rests protruding from said table and arranged at a distance from one another, and a separating device arranged between same. The support table has a substantially flat tube-supporting surface, and the separating device has a cutting knife and a tube feed (7) which can move parallel to the separating plane and has two thrust pieces (9) arranged on both sides of the separating plane, each having a tube contact surface (10). In addition, at least one first of the thrust pieces (9) has a thrust piece attachment (12) adjustably attached to a carrier (11) and having the associated tube contact surfaces (10). In an alternative embodiment of the invention, a tube feed that can moved in parallel to the separating plane can comprise a feed block, on which two thrust pieces (9') are formed, arranged on both sides of the separating plane and each having a tube contact surface (10'), wherein the feed block (8') is adjustably mounted in such a way that the position of the two tube contact surfaces (10') can be changed relative to the separating plane.