The Design And Research Of Three-station Injection Tire

Because the development of the modern society is so rapid, the car industry has grown so large. So the requirement of the tire has become more and more and the need of it's quality become higher and higher.. So we must have the the high-quality Vulcanized rubber molding equipment to guarantee the High-quality tire. In other words, the level of the Vulcanized rubber molding equipment is controling the level of the tire production. There are three main methods at present, including winding, molding, centrifugal casting method method and so on. However, these methods still have so many problems,firstly, both winding and molding methods is a kind of procedure which join the tire and the prepared rubber sheet together. These technics use a lot of equipments, cost a large amount of energy and use such complexed manufacture procedure. The compactness between rubber layers is not tight, so the layers usually fall off very easily when the tire working. Secondly, because only the special material can suit the centrifugal casting, and this material stretch resistance, tear resistance, abrasive resistance, skid resistance is relatively poor. All these disadvantages prevent the development of the centrifugal casting.In order to adapt to the market which requires high quality, high efficiency, low cost, low power for the tire. This thesis researches deeeply about the characteristic and performance of all kinds of tire vulcanization molding equipment. After that, we combine that with the patent and technology of Qing Dao University Science & technology's macromolecule mechanic research center. Then we design the new three stations one step injection molding vulcanization. the main achievement of this paper are as below:(1) One-step injection molding technique is used in the injection tire for the first time which improves the quality of the tire surface and the the whole tire. So this method improves whole performance and running efficiency of the system greatly.(2) Thanks to the three-station integral structure, the whole equipment not only stresses rationally, deforms little but also has highly working precision, compact structure and small occupation area. This equipment can applied for the small, medium, big product at the same time. It can injection, vulcanization mold uploading at three station. So its characteristic is continuous production and automation(3) The design of the open bearing chock and the spring buffer The pressure sensors's control and the reliability has been increased and the problem of unable unloading when the electrical spiral clamping device is jammed accidentally has been solved because of the design of the open bearing chock and the spring buffer.(4) The injection hole is setted in the special plate, so the whole press act on the plate, the fluent of the rubber from the plate up to the lower plate. This design solves the problem of the force of the tooling problem which made the tooling move so that circumference force become equality. This method made the rubber flow from the downward to the top freely incase eccentric leak rubber.(5) The equipment of knocking out combined the mechanic and electromagnetism which is totally new. Via magnetic clutch made the top motor and lower motor operate separately, so the whole machine become more efficiency and operate freely.(6) I designed three statiom movement equipment which use high precise ball screw. pinion and rack to make sure the machine can located itself precisely.(7) The machine uses advanced digital sensing technology which can control inject pressure force, clamp force, and it improve the precise of the machine and made the time perfect.(8) The traditional design method, three-dimensional forming design and together with three-dimensional process simulation is used in this paper,cuts off the time of the design, lower the cost, we can evaluation the product before we made it, this technology can provide the measure of examine.In summary, there are so many advantages in the three-station injection tire molding vulcanization which the others don't have, and obviously, it is innovative.