Take-up Roller Hydrostatic Bearing Vibration Damping
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Solution Overview
Problem
Devices for winding large paper webs experience undesirable vibrations during the winding process, leading to noise and degradation of the wound roll quality, and existing solutions for vibration damping are either expensive or require significant space.
Innovation Solution
A compact bearing device with hydrostatic support featuring curved bearing pockets arranged at intersecting angles for comprehensive vibration damping, combined with a pressure accumulator and adjustable throttle for adaptive damping, ensuring consistent performance across varying roll diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a take-up apparatus is not integrated with the weaving machine, then the weaving machine structure remains simple, but the weaving efficiency is low due to manual take-up operations
Solution Approach 1:
The take-up apparatus is integrated with the weaving machine by mounting the take-up roller on the rear beam of the weaving machine. The drive mechanism uses the weaving machine's existing components (rear beam, pitman, crank mechanism) to power the take-up roller, combining two functions into one system. This integration automates the take-up operation while utilizing the existing structural framework of the weaving machine.
2Adaptability or versatility
If the take-up roller diameter is fixed, then the manufacturing is simple, but the cloth roll diameter cannot be adjusted for different production requirements
Solution Approach 1:
The take-up roller is divided into two separate rollers that can be positioned at different distances from each other. By adjusting the spacing between the first and second take-up rollers, the effective diameter of the cloth roll can be varied. This segmentation allows the system to handle different cloth roll diameter requirements without requiring a completely different roller design.
Solution Approach 2:
The take-up roller system incorporates adjustable positioning mechanisms that allow the rollers to be moved along the rear beam. This dynamic adjustment capability enables the operator to change the cloth roll diameter according to different production requirements, making the system adaptable rather than fixed.
3Productivity
If the take-up apparatus is manually operated, then the device complexity is low, but the labor intensity is high and weaving efficiency is reduced
Solution Approach 1:
The drive mechanism is designed to utilize existing components of the weaving machine (rear beam, pitman, crank mechanism) to power the take-up roller. This multi-functional approach allows the same mechanical components to serve both the weaving operation and the take-up operation, reducing the need for separate dedicated drive components and minimizing the increase in device complexity.
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 reduces vibrations, maintains the roller's position, and allows for universal orientation, enhancing the quality of the wound roll while minimizing space and cost, ensuring consistent performance from initial to final winding diameter.
Implementation Method 1
the bearing having a hydrostatic support having at least one bearing pocket that is fed with hydraulic fluid
Implementation Method 2
the roller rests on hydraulic fluid that continuously flows through a fluid gap that arises at the boundary of the bearing pocket
Data Source
Figure 1~3
AI summary
The invention relates to an apparatus for rolling up a length of material onto a winding roll (1) comprising at least one roller (2, 3), on which the winding roll (1) rests during winding and which rotates during winding, the roller (2, 3) being supported at each roller end (5) by a bearing (9) in a bearing device (4), and wherein the bearing (9) has a hydrostatic support having at least one bearing pocket (6) which is supplied with hydraulic fluid. In this case, a space-saving and simply designed construction is made possible in that the bearing pocket (6) extends perpendicular to the roller axis and is curved about a portion of the respective roller end (5).