Undulating Sieve Sheet for Building Material Clogging
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Solution Overview
Problem
Conventional building material manufacturing apparatuses experience clogging issues in the sieve portion due to adhesive and damp powder raw materials, leading to increased maintenance time, labor, and costs.
Innovation Solution
The apparatus employs a receiving and sending sheet with no sieve openings and a large area of contact, performing an undulating motion to crush and disperse bulky raw material clumps before reaching the sieve sheets, reducing clogging by crushing and dispersing the material before it enters the sieve portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an air blower is used to blow air on falling powder raw material for sieving, then the powder raw material is sorted through sieve openings, but adhesion of the powder raw material to the sieve screen occurs causing clogging
Solution Approach 1:
The patent applies mechanical vibration to the sieve screen through a vibration generator. The vibration causes the sieve screen to oscillate, preventing the damp and adhesive powder raw material from adhering to the sieve surface. This mechanical vibration mechanism effectively eliminates clogging while maintaining continuous sieving operation, resolving the contradiction between productivity and reliability.
2Productivity
If sieve screen clogging occurs due to adhesive powder raw material, then maintenance time and labor increase, but production continues
Solution Approach 1:
The vibration generator performs preliminary action by continuously vibrating the sieve screen before clogging can occur. This preventive vibration keeps the sieve surface clear of adhesive material, eliminating the need for frequent maintenance interruptions and enabling continuous production without loss of time.
3Manufacturing precision
If the sieve screen is inclined farther apart from the air blower, then material sorting improves, but adhesion and clogging become more likely
Solution Approach 1:
The mechanical vibration applied to the sieve screen counteracts the adhesion forces that increase with greater inclination distance from the air blower. The vibration keeps material particles from sticking to the sieve surface even when the sieve is positioned farther away for better sorting precision, thus maintaining both manufacturing precision and reliability.
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
This configuration effectively suppresses sieve sheet clogging, reducing maintenance time and labor, and lowers manufacturing costs by ensuring a smoother operation and reduced need for frequent cleaning.
Implementation Method 1
The apparatus employs a receiving and sending sheet with no sieve openings and a large area of contact, performing an undulating motion to crush and disperse bulky raw material clumps before reaching the sieve sheets
Implementation Method 2
The sieve portion includes an air blower for blowing air on the falling powder raw material in a lateral direction
Data Source
Figure 1~2
Figure 3(a)~4
Figure 5~6(b)
AI summary
Provided is a building material manufacturing apparatus and a building material manufacturing method that are suitable for efficiently manufacturing a building material while suppressing clogging of a sieve portion for sieving the building raw material. The building material manufacturing apparatus of the present invention includes, for example, a sieve portion 10 and a receiving tool 30. The sieve portion 10 includes a receiving and sending sheet 11 with no sieve openings, onto which the building raw material M is dropped, and at least one sieve sheet 12 with sieve openings that is located below the sheet. The receiving and sending sheet 11 and the sieve sheet 12 can perform undulating motion, are inclined, and are arranged side by side in the inclination direction. The receiving tool 30 is for receiving the building raw material M that has passed through the sieve openings of the sieve portion 10. In the building material manufacturing method of the present invention, for example, in a state in which the receiving and sending sheet 11 and the at least one sieve sheet 12 are performing undulating motion, the building raw material M is dropped onto the receiving and sending sheet 11, moved from the receiving and sending sheet 11 onto the sieve sheet 12, subjected to sieving by the sieve sheet 12, and the portion that passes through the sieve openings of the sieve sheet 12 is accumulated on the receiving tool 30, whereby a mat with at least one layer is formed.