Jointed connecting link mechanism with linkage between moving side mold and bottom mold of bottle blowing machine

Abstract

The invention discloses a jointed connecting link mechanism with linkage between a moving side mold and a bottom mold of a bottle blowing machine. A side mold rotor arm which drives the side mold to carry out separation and reunion motion synchronously drives the bottom mold to carry out deflection lifting motion while drives the moving side mold to carry out separation and reunion motion, the separation and reunion motion of the moving side mold can be in accurate cooperation with deflection lifting motion of the bottom mold, and then it is implemented that the deflection lifting motion of the bottom mold can be in effective synergy with the separation and reunion motion of the moving side mold. According to the jointed connecting link mechanism with linkage between the moving side mold and the bottom mold of the bottle blowing machine, after a first plane four-bar linkage is connected with a space dual-swing slider mechanism in series, and then a formed tandem type combined connecting rod type bottom mold deflection lifting mechanism is combined with a second plane four-bar linkage. Parts are connected with one another through sliding pairs or revolute pairs or spherical pairs. The jointed connecting link mechanism with linkage between the moving side mold and the bottom mold of the bottle blowing machine is simple and low in live load; and the vibration and impact of the mechanism can be effectively reduced, abrasion of the parts is reduced, the motion of the bottom mold can be accurately controlled, the bottle blowing machine is improved in motion stability and reliability, and the high-speed performance of the whole machine is improved.

Description

technical field [0001] The invention relates to the technical field of bottle blowing machines, in particular to a combined linkage mechanism in which a side mold and a bottom mold of a bottle blowing motor are linked. Background technique [0002] The bottle blowing machine is the key equipment for producing plastic bottles for various liquid packaging (filling). Each process of the bottle blowing machine has strict requirements and high requirements for mutual cooperation, especially for the synchronous control of the opening and closing movement of the single-side opening and closing side mold and the deflection and lifting movement of the bottom mold. [0003] The existing mechanism for realizing the synchronous movement of the bottom mold and the movable side mold is generally a composite mechanism formed by a cylindrical space cam and a space linkage mechanism. The space linkage mechanism realizes the deflection of the bottom mold, and the deflected bottom mold is in t...

AI Technical Summary

Problems solved by technology

Disadvantages: 1) The design and machining accuracy of the cam flange or groove profile of the cylindrical space cam is high, the installation and positioning of the cam is difficult, and the rotor is easily stuck; 2) The contact surface between the rotor and the cam profile is easy to form point contact, and the pressure The stress is large, the rotor is easily damaged or the cam surface is easy to wear; 3) Due to the limitation of the space size, the pressure angle of the cam is usually too large. Similarly, the rotor is easily damaged or the cam surface is easy to wear

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