Conductive Roll Contact Detection for Grinding Gap Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for determining the zero point for a movable roll in grinding equipment are inaccurate and hazardous, particularly for inexperienced operators, and can lead to roll wear and damage.
Innovation Solution
A system where at least one roll is electrically conductive, allowing for contact detection through a completed circuit when the rolls touch, eliminating the need for auditory detection or feeler gauges, and enabling automatic adjustment of the separation gap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If auditory detection or feeler gauges are used to detect roll contact, then the zero point can be determined, but operator safety is compromised and measurement accuracy is insufficient
Solution Approach 1:
The patent replaces mechanical detection methods (feeler gauges, auditory detection) with an electrical detection system. Conductive elements are embedded in the rolls and connected through a detection circuit that automatically signals when the rolls make contact, eliminating the need for manual intervention and providing precise, reliable zero point detection without compromising operator safety
Solution Approach 2:
The system uses the rolls themselves as part of the detection circuit. The conductive elements embedded in the roll surfaces create a self-testing mechanism where the rolls detect their own contact state through the electrical circuit, eliminating the need for separate detection tools or manual checking procedures
2Device complexity
If manual detection methods are used, then the system remains simple, but the process is hazardous and time-consuming
Solution Approach 1:
The patent introduces an electrical detection system that automatically detects roll contact and signals the zero point, replacing manual methods with automated sensing. This increases productivity by eliminating manual measurement steps while the circuit integration keeps the overall system relatively simple
3Ease of operation
If the rolls are adjusted manually without automatic detection, then the adjustment process is straightforward, but measurement precision and reliability are compromised
Solution Approach 1:
The detection circuit provides immediate feedback to the operator when the rolls make contact, indicating that the zero point has been reached. This feedback mechanism ensures precise separation gap measurement while maintaining ease of operation, as the operator simply needs to move the rolls together and read the signal from the detection system
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 system provides a safer, more accurate method for determining the zero point, reducing operator risk and roll wear, and allowing for precise and automated adjustment of the separation gap.
Implementation Method 1
at least a portion of the circumferential surface being electrically conductive... a detection apparatus configured to detect contact between the rolls
Data Source
AI summary
A system may comprise a frame, a pair of rolls with each of the rolls comprising a roll body having opposite ends and a circumferential surface, a plurality of teeth being formed on the circumferential surface, and at least a portion of the circumferential surface being electrically conductive. The roll may also have a roll shaft having end portions extending from the roll body, with each of the end portions extending from one of the ends of the roll body. The system may also comprise roll supports configured to support the rolls on the frame in a manner such that at least one of the rolls is movable to adjust a separation gap between the rolls, a detection apparatus configured to detect contact between the rolls, and a signaling apparatus configured to produce a signal indicating a change in electrical potential is detected by the detection apparatus.