Structural Optimization And Analysis Of Calcium Silicate Board Forming Machine

Development trend of the building materials industry is to produce light,high strength,energy saving and Environmental protection building materials,using it to minimize the dead weight,reducing seismic effect of structure,improving the seismic performance,mechanization and assembly level of construction.And the calcium silicate board is one of the most important energy saving and environmental protection building materials,the demand for it has obviously increased.As the vitally equipment of calcium silicate board production,the poor performance of the forming machine for calcium silicate has deeply restricted the improvement of calcium silicate production lines and quality of products.This paper tries to focused on the roller of forming machine of calcium silicate board and the pressure arm,the whole performance of equipment has been improved after optimized,increasing the products' quality and production efficiency at the same time.This paper mainly research on the following aspects:(1)This paper introduce the structure,properties and characteristics of calcium silicate board forming machine,then the molding mechanism and the working process of forming machine is analyzed,and complete the virtual assembly calcium silicate board forming machine in the 3D graphics software UG.Putting forward methods to solve the problem which combined with the problems existing in the forming machine and the possible reasons of existence in production practice.(2)The extrusion parts-cylinder,forcing parts-pressure arm calcium of the silicate board forming machine were analysised based on the theory of compression rebound,the formula for calculating the relative density of the material and the strength check of the forming cylinder are deduced after establishing a force model;the stress condition of molding cylinder and pressure arm were obtained from the analysis of laser thickness gauge data,it has provides a theoretical basis for the subsequent finite element analysis for the key components molding cylinder and pressure arm of the calcium silicate board molding machine.(3)The forming cylinder was analyzed by using the finite element software ANSYS Workbench,the results show that the force of molding cylinder is mainly the central position focused on the extrusion area,distribution to symmetry along the axial direction and week,according to the results of the strength,the structure is to conform to the requirements,but there is still a large optimization improvement of space;the pressure arm is analyzed by the static analysis and modal,the results show that joint pressure arm is concentration,but within the allowable stress range of pressure,the deformation of the front of pressure arm is slightly larger,all above have provided a reference and direction for the subsequent structure optimization.(4)In the premise of ensuring the overall strength and stiffness of the structure,finally get the optimal solution of the theory by using response surface methodology to optimize the structure of the cylinder and the pressure arm,which improve the strength of molding cylinder and pressure arm after optimization,the strength of the molding cylinder is increased by 5.19%,the mass is reduced by a factor of 3.66%,the strength of the pressure arm is increased by a factor of 8.1%,and the quality is reduced by up to 3.7%,it has reached the optimal goal.(5)The completion of the calcium silicate board forming machine idling test,uneven surface quality inspection,thickness and thickness of the product for the fit test.And compared with the corresponding parameters before optimization,the results show that the performance of the calcium silicate board forming machine is improved after optimization,at the same time,the quality of the products is also improved.