block making machine is under the ＂Ninth Five-Year＂ natio

QM4-12 block making machine is under the "Ninth Five-Year" national key scientific and technological projects and the development of new products. By the China Academy of Building Research Branch is responsible for building mechanization, Mianzhu Tai Chi Machinery Co., Ltd., Harbin Architecture University, Chongqing Architecture University, with participation by industry, academia, and research methods developed from the combination. The models of development, focus on improving the level of block forming machine technology, import substitution, for the domestic market to provide high-quality block machinery. Set of international advanced products, present situation and development direction, the most prominent high-performance, multi-purpose. The performance is technically innovative, advanced technical performance and high reliability; its purpose is to balance the production of ordinary brick, but also the production of high strength and ultra high strength masonry block, and to produce decorative road blocks and color blocks. QM4-12 block making machine in July 2000 chaired by the Ministry of Construction and identification of experts agreed that the machine is achieved in many ways an innovative breakthrough, the performance reached the international advanced level, can replace imported products.

QM4-12 block making machine (Figure 1) vibration mode using Mo town, full hydraulic automatic control, the Vibrator, model boxes, pressure and shock absorbers and other components. The vibrator was developed specifically for the machine by hydraulic motor through the tooth belt drive eccentric shaft, the maximum vibration can produce 70Hz, vibrator with separate oil lubrication systems, bearings and other high-speed operation of the active transmission parts lubrication. Using a new cartridge mold box, the liner can be replaced using both sides, several times to improve the life of the mold box and lower costs; mold box also has automatic air exhaust will help reduce the ejection force.

QM4-12 block making machine each forming four, molding cycle 12s (standard block), with higher productivity. After testing, the effective exciting force of up to 19 ~ 20g, block strength up to 25Mpa, fully meet the production of high strength and super-block of the actual needs. Block the production of high strength requires a certain intensity of vibration, and severe vibration on the equipment itself is a negative factor, the noise caused by vibration is also a need to resolve. Research group carried out various research and development of new technologies a bit more is said: ① developed to meet the long vibrator ② dedicated high-speed operation of the relevant connecting rod vibration, bearing spring stiffness on the vibration parameters were made to Analysis and optimization of the mechanical design of the vibration of the mold box to ensure that the requirements, while effectively reducing the vibration of other parts of the machine the adverse effects; ③ designed a set of child protection with the vibration rod installed; ④ hydraulic stepless FM devices, not only can not be easily achieved during the process of scoring frequency vibration and pressure, and can adapt to different vibration frequencies of aggregate on the different requirements of research successfully resolved through the hydraulic response of driving conditions; ⑤ bladder using a cylinder plus pressure shock absorption technology, the exciting force into full play, reduce the vibration of the rack to reduce noise.

It adopts PLC control stepless frequency mode, you can easily use different aggregates for different vibration parameters, with better adaptability to use of raw materials assembled mold, ease of manufacturing and replacement, not only reduces the user's use of cost, Block type also has good flexibility, ease of use of a machine, product height range 40 ~ 250mm; adding additional fabric device that can achieve the second cloth.

QM4-12 block making machine now has a hydraulic vibration driving devices 4 patents in China. Compared with similar international products, the molding machine cycle, and other technical parameters of the exciting force has reached the advanced level. The advanced models of similar import price is only 1 / 8 or so, with good performance and low cost, advanced technology and truly under the economic rationality, no doubt the market has a strong competitive edge.

2. Development of automatic block production line

Given QM4-12 automatic block making machine, program design, will be mainly used in medium-sized puzzle

Simple block production line or block production line facilities. With the success and development, China Academy of Building Research Construction Mechanization Research Branch has developed and associated with the automatic block production line. The line positions by the aggregate, cement silos, batching system, mixing system, the block forming the host or board machine, descending board machine, program the kiln cars, stacking machine and a variety of pallets and block transmission equipment and hydraulic station and the central console form, can be done automatically from the raw material dosing, mixing, molding to the conservation process, block out of the kiln transport, pallet transport finished stacking up to the global output of the production process.

In addition to forming the host, the main features of the product line below. 1) has in recent international advanced level. Comprehensive accounting of international chess manufacturing industry of new technologies, new processes, machines, electro-hydraulic gas closely, is a fully automatic process control production lines. 2) The application of the programmable control, frequency control and a series of new technologies. Abandoned in the past of similar production lines, using the dual-motor drive, or multi-speed motor drive and other drive, be driven by the motor frequency. The kiln car, stacking machines and other equipment running more smoothly, the process of positional accuracy has improved significantly. Within a certain range, users can also run under the circumstances of the kiln equipment, vehicles and other equipment to adjust speed easily. 3) The QM4-12 block making machine as the host. With a large exciting force, can guarantee the strength and quality of the block. As long as the dress of different molds can produce a variety of standard blocks, load-bearing masonry building materials and road blocks for a wide range. 4) Good selection of international branded accessories to enhance the overall reliability. Hydraulic and electrical control components mainly buy Rexroth, Omron, Mitsubishi, Yaskawa and other famous products. 5) Integrated economic benefit. The whole production line operator less, low labor intensity, high productivity, good quality production block. 6) save investment costs. Pallet and Block transferred directly from the kiln car maintenance kiln, no cradle, economical and practical. 7) The production process is more than reasonable. An expansion of production needs at any time for the bilateral conservation kiln to two shifts or three shifts to meet the mass production needs. Annual output of 80,000 cubic meters block plant generally 450 square meters (100 square meters with simple shed), the conservation of two kilns of 350 square meters, which can be used as a curing kiln Phase II expansion. At present, the device has new technology development company Langfang KABB and other manufacturers to organize production.