Belt Guide Means for Wound Cotton Wool Ball Apparatus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lap roll winding devices face issues with belt lateral displacement during the winding process, leading to edge damage and unclean winding due to the belt drifting off the deflection rollers, especially when transitioning from tensioned to relaxed states, and vice versa.
Innovation Solution
The introduction of additional guide means that hold the belt in a stable position transversely to its longitudinal direction, using movable guide elements and pressure rollers synchronized with the pivoting deflection rollers to maintain central alignment between the belt and winding disks, preventing edge contact and ensuring precise lateral positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the belt is made rigid to maintain stability during winding, then the belt stability during winding is improved, but the belt lateral displacement in relaxed state increases
Solution Approach 1:
The patent applies dynamics by making the guide means movable rather than fixed. The guide means can move between a first position during winding to guide the belt centrally, and a second position during relaxation to prevent lateral displacement. This dynamic adjustment allows the system to adapt to different operational states, resolving the contradiction between belt stability during winding and prevention of lateral displacement in relaxed state.
Solution Approach 2:
The patent applies preliminary action by positioning the guide means in advance before the winding process starts. The guide means is pre-positioned to guide the belt into central alignment before the belt is tensioned during winding, preventing lateral displacement issues from arising in the first place during the winding operation.
2Area of stationary object
If the belt edges are kept close to winding disks to maintain compact winding, then the winding compactness is improved, but the belt edge damage increases
Solution Approach 1:
The patent applies the intermediary principle by introducing guide means as a mediator between the belt and the winding disks. The guide means prevents direct contact between the belt edges and the winding disks, acting as a protective intermediary that allows the belt to be positioned centrally without causing edge damage while maintaining compact winding geometry.
Solution Approach 2:
The patent applies preliminary action by centrally positioning the belt through the guide means before the winding process begins. This pre-positioning ensures that the belt starts in the correct central location, preventing lateral displacement that would cause edge contact with winding disks and subsequent damage, while still allowing compact winding to occur.
3Manufacturing precision
If profiled deflection rollers are used to guide the belt laterally, then the lateral positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent applies dynamics by replacing complex static profiled deflection rollers with simpler movable guide means. The guide means can be positioned dynamically using actuators (such as cylinders or motors) to achieve the required lateral positioning accuracy without requiring complex profiled roller geometries, thereby reducing manufacturing complexity while maintaining precision.
Solution Approach 2:
The patent applies mechanics substitution by replacing the mechanical profiled deflection roller system with an alternative system using movable guide means actuated by controlled mechanisms (such as hydraulic or electric actuators). This substitution achieves the same lateral positioning function with potentially simpler components and reduced manufacturing complexity.
Data Source
Figure 1~1a
Figure 2~3a
AI summary
The invention relates to an apparatus for producing a wound cotton wool ball, comprising a revolving endless belt (R) which is tensioned by way of a tensioning apparatus (3) and is guided about a core (H) over several deflection rollers (R1 - R6) in order to form the wound cotton wool ball (WW) in a loop (S), wherein the core is held between two winding disks (W1, W2) protruding beyond the core in the radial direction and mounted in a machine frame (MS), and at least one of the deflection rollers (R2) is mounted movably transversely to the axis of rotation thereof by way of pivot means (8) so as to dispense the finished wound cotton wool ball. In order to prevent the belt edges (Rs) of the belt (R) from running onto the lateral winding disks (W1, W2) when starting a new winding process, it is proposed to provide additional means (15, 16; 18, 19; 21, 22; 31, 32; 38; 39; 44, 45; 51, 52), which hold the belt (R) in one position, viewed transversely to the longitudinal direction thereof, in the relaxed state thereof, or prior to renewed tensioning of the belt return it into a position which it had previously in the tensioned state during the winding process on the deflection rollers (R1 - R6).