Four-axis synchronous powerful vibration excitation device used for automatic block moulding machine

Abstract

The invention discloses a four-axis synchronous powerful vibration excitation device used for an automatic block moulding machine. For the device, a case-type vibrating plate is installed on the frame base of a block moulding machanism, a frequency adjustment vibration motor is sequentially connected with a synchromesh gear case, a power transmission shaft and a vibration exciter; the vibration exciter is arranged under the case-type vibrating plate, and the vibration excitation cam of the vibration exciter directly drives the case-type vibrating plate to do periodic powerful vibration; the vibration motor is adjusted by a frequency automatic adjustment program control device to change the rotating speed of a vibration exciter, and adjust and control vibration frequency, vibration amplitude and excitation force; the device better solves the technical problems of four-axis synchronous efficient powerful excitation, stepless adjustment of vibration frequency, vibration amplitude and excitation force, the instantaneous transformation of light vibration and powerful vibration, and the like. The device is mainly used for configuring the automatic block moulding machine to produce concrete block products, and has the advantages of high vibration accelerated speed, large effective covering area of excitation force, short vibration moulding cycle, high product quality performance grade and the like.

Description

technical field [0001] The invention relates to building material mechanical equipment, in particular to a four-axis synchronous strong vibration device for automatic block forming machines equipped with concrete block automatic forming machines. Background technique [0002] Concrete block is a low-energy, wide-purpose new building masonry structure material that does not use clay as raw material and does not need to be fired into shape; High-performance concrete block products made of solid waste as aggregates are of great significance to saving land, protecting the environment, utilizing resources, and saving energy. It is a major environmental protection and energy-saving new building material that countries all over the world are actively promoting and developing project. [0003] The production and application of concrete block products has a history of more than 100 years abroad, especially in industrialized countries such as Germany, Italy, Japan, and the United Sta...

AI Technical Summary

Problems solved by technology

[0008] First, in terms of the structural arrangement of the excitation device, most products adopt the traditional structural arrangement of 2 machines, 2 axes and 4 points of vibration. Due to structural limitations, there are generally few driving points of the vibration source and effective excitation force. Due to technical defects such as small coverage area, the area of ​​the vibration table of the block forming machinery and equipment is not large, and the production capacity is not high. Generally, the number of blocks per mold can only be arranged with 4 or 6 blocks, and the maximum can only reach 9 blocks.

[0009] Second, in terms of the synchronous vibration control of the vibration excitation device, most products lack effective adjustment and control means, and generally have technical defects such as excessively large shaft speed differences, excessively long excitation drive time differences, and excessively high amplitude deviations on the vibrating table surface, resulting in The vibration molding cycle of block molding machinery is too long, and the production efficiency is not high. Generally, the vibration molding cycle of each mold is above 75S, and the fastest can only reach 28S

[0010] Third, in terms of vibration isolation and vibration reduction measures for vibration excitation devices, most products lack effective means to reduce or absorb vibration energy transmitted to basic components such as racks and vibration motors. In order to reduce the impact of vibration on block forming machinery and equipment Damage, prolonging the warranty time, and reducing costs have to be designed and selected to use vibration motors with lower power as power sources. Generally, the power of a single machine does not exceed 7.5KW, and the maximum can only reach 12KW; the result makes the vibration acceleration of the mold box normal. No more than 8G, preferably only 17G, so the highest strength grade affecting concrete block products can only reach MU7.5

[0011] Fourth, in terms of technical adjustment and control of the excitation device, due to limitations in design ideas, technical levels, and comprehensive manufacturing capabilities, the control methods of most products are at a relatively low level, and only a few imported technology products can achieve It is difficult to popularize and apply the combination of light vibration and pressurized strong vibration at the same time, which is commonly used in western industrialized countries, due to the stepless adjustment of vibration frequency and amplitude excitation force, and the instantaneous conversion of light vibration and strong vibration. The latest achievements in vibration forming technology have also affected and restricted the rapid improvement of the technical performance and quality level of concrete block products in my country

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