Hydraulic Double Pre-press Design And Development

This paper introduced the dual-hydraulic pre-pressing machines. Now, with the development of automatization in the tobacco industry, the distributivity automatic control system based on the network applies abroad increasingly. The workers using this system may keep away from the noisy or harmful production local. The working condition may be improved. Watching with no-person comes true in the production local. The maintenance is simpleness and the manpower is played down. Moreover, the production error is reduced and the production quality is improved.The tobacoo leaf per-pressing and baling system is one of the main equipment on defolate redrying product line. At present, machines using in domestic enterprises exist many problems. Firse one, the request that the height of the machine is so heigh that the workshop must be build specially. Secondly, it's difficult to balance between the dwell time and the efficiency.The research object in this paper is tobacco leaf pre-pressing machine. With the real requirement of the factory, we break through the difficult problem of the key technology on pre-pressing machine and realize automatization and high efficiency on packers. At the same time, it guarantees that packers are applied widely. The high of packer may come down using doublestage oil cylinder. The movement speed of execution elements may be enhanced in the situation of no increasing the flux of the bump using differential speed loop on hydraulic pressure oil conduit. The high of the machine may descend further using pre-pressing machinery. The system runs more stable and more efficiency using double head and bouble feed cylinder machinery. The ameliorated packer should run speedly and harmoniously, it may be high performance, more steady and more easly communicating with the computer. It also should have more economic benefit and more social benefit and should accord to the needs of the defolate redrying arts in our country.