Carding Machine Gap Control via Local Display and Input
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Solution Overview
Problem
Operators of spinning preparation machines, such as cards, face difficulties in accessing necessary information for setting up the carding gap on the machine itself, often requiring frequent visits to central storage facilities for operating instructions, which hinders efficient operation and setup.
Innovation Solution
A method that integrates a controller, display device, and input device on the card, allowing for the input of raw material and production quantity, calculation of target carding gap width, and display of target values, enabling operators to adjust settings without leaving the machine and facilitating automatic adjustments for optimal carding results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If operating instructions are stored in a central storage facility, then information can be stored in one location, but operators must repeatedly access the central facility which reduces operational efficiency
Solution Approach 1:
The patent divides the centralized information storage system into distributed storage units. Each carding machine is equipped with its own display device and input device that can store and access operating instructions locally, eliminating the need for operators to repeatedly visit the central storage facility while maintaining information availability.
Solution Approach 2:
The patent introduces a new dimension of information access by implementing both central and local storage systems simultaneously. Operators can access information either centrally or locally at the machine level, providing multiple pathways for information retrieval and improving operational flexibility.
2Loss of information
If operators access central storage facility for operating instructions, then they can obtain necessary information, but they must leave the machine which hinders efficient operation
Solution Approach 1:
The patent implements preliminary action by pre-loading operating instructions and card setting parameters into the local display devices at each machine. Operators can access this information directly at the machine without leaving, as the necessary data has been prepared and stored in advance at the point of use.
Solution Approach 2:
The patent introduces an intermediary layer between the central storage facility and the operator. The local display device acts as a mediator that caches and presents operating instructions locally, eliminating the need for operators to physically travel to the central facility while ensuring information accuracy through connection to the central system.
3Productivity
If carding gap settings are not accurately maintained, then equipment can operate continuously, but poor-quality fiber production and equipment damage may occur
Solution Approach 1:
The patent implements a feedback mechanism where the control system continuously monitors the actual carding gap width using measurement devices and compares it with the target value. When deviations are detected, the system automatically generates adjustment commands or alerts operators, ensuring the carding gap remains within acceptable tolerances to maintain fiber quality and prevent equipment damage.
Solution Approach 2:
The patent enables the carding machine to perform self-adjustment of the carding gap through automated control systems. The machine monitors its own parameters and makes necessary adjustments without external intervention, maintaining optimal settings for fiber quality while ensuring continuous operation.
Data Source
Figure 1~2
Figure 3~4
AI summary
In a method for operating a carding machine (1) and for setting a carding gap (6) of the carding machine (1), the carding machine (1) comprises a control unit (7), a display unit, and an input device (8, 9) on the carding machine (1), and a drum (2) with a carding set and at least one carding set element arranged opposite the drum (2), wherein a carding gap (6) with a carding gap width (W) is formed between the carding set of the drum (2) and the carding set element. The following process steps are performed: - Input of raw material intended for carding into the input device (9), - Input of a desired production quantity into the input device (9), - Setting of a target carding gap width, - Output of the target carding gap width on the display device (8), - Determination and output of a target drum speed and/or a target cover speed on the display device (8).