Conveyor-driven fabric dyeing machine including an axle distance adjustment device
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Solution Overview
Problem
Conventional fabric dyeing machines face issues with conveyor belt tightness due to wear and abrasion, leading to improper operation and movement, as existing solutions lack adjustable axle distances and effective sealing mechanisms.
Innovation Solution
An axle distance adjustment device with position-adjustable bearing seats and hollow bearing seat bases, equipped with seal elements and horizontal rails, allows for adjustable axle distances between rollers to maintain optimal conveyor belt tension and prevent liquid or pressure leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the conveyor belt length is fixed and rollers are immobile, then the structure is simple and easy to manufacture, but the conveyor belt becomes excessively tight or loose due to wear and abrasion
Solution Approach 1:
The patent applies the dynamics principle by making the roller position adjustable rather than fixed. The bearing seat can move along the guide rail to change the distance between rollers, allowing the conveyor belt tension to be adjusted as the belt wears over time. This transforms a static structure into a dynamic one that can adapt to changing conditions.
Solution Approach 2:
The patent changes the parameter of roller position (distance between axles) to maintain optimal conveyor belt tension. By adjusting the position of the bearing seat along the guide rail, the system can compensate for belt elongation due to wear, thereby maintaining reliable operation without requiring complete belt replacement or complex tensioning mechanisms.
2Reliability
If skilled persons or supporting measures are used to adjust chain length and control tightness, then conveyor belt reliability improves, but device complexity and operational difficulty increase
Solution Approach 1:
The adjustable bearing seat mounted on a guide rail provides a simple dynamic mechanism that allows operators to easily reposition rollers along the rail to maintain proper belt tension. This simple mechanical adjustment system avoids complex chain length adjustment mechanisms or multiple supporting structures, maintaining ease of operation while improving reliability.
3Reliability
If the bearing seat is made movable to adjust axle distance, then conveyor belt tightness can be maintained, but sealing effectiveness may be compromised
Solution Approach 1:
The patent introduces a seal element as an intermediary between the movable bearing seat and the fixed structure. This seal element prevents liquid and pressure leakage while allowing the bearing seat to move along the guide rail for axle distance adjustment. The seal acts as a mediator that enables both movement and sealing functions simultaneously.
Solution Approach 2:
The seal element is a simple, easily replaceable component that provides effective sealing at low cost. Rather than designing a complex sealed movable joint, the patent uses a straightforward seal element that can be replaced when worn, maintaining sealing effectiveness without compromising the adjustability function.
4Manufacturing precision
If guide rails are added to ensure horizontal movement of the sliding plate, then adjustment precision improves, but device complexity increases
Solution Approach 1:
The guide rail provides a simple yet effective constraint that ensures the bearing seat moves only in the horizontal direction along the rail. This single-degree-of-freedom guidance mechanism is much simpler than alternative guiding structures and provides sufficient precision for axle distance adjustment without adding significant complexity to the overall system.
Data Source
Figure 1
Figure 1A
Figure 2
AI summary
An axle distance adjustment device is provided for a conveyor-driven fabric dyeing machine M and includes a conveyor belt 11 in the form of an endless loop arranged inside a machine body 1 and a fixed roller 12B and a movable roller 12A respectively arranged at two ends of the conveyor belt 11. The fixed roller 12B has a rotary axle 122 having two ends mounted through bearings to bearing seats mounted on sidewalls of the machine body 1. The movable roller 12A has a rotary axle 121 having two ends mounted through bearings to position-adjustable bearing seats 31, which are coupled to hollow bearing seat bases 32 mounted to the sidewalls of the machine body 1. The position-adjustable bearing seats 31 are attachable to the hollow bearing seat bases 32 at different locations so that an axle distance between the rotary axle 122 of the fixed roller 12B and the rotary axle 121 of the movable roller 12A is changed for adjustment of tightness of the conveyor belt 11.