A method for swinging the bottom mold of a bottle blowing machine and a swinging device

Abstract

The invention discloses a swinging method and a swinging device for the bottom mold of a bottle blowing machine. On both sides of the mold, the center line of the mold closing is located at the center of the mold closing between the movable side mold and the fixed side mold. When the blow molding machine opens the mold, the mold opening and closing cam drives the mold opening and closing rotor arm fixed on the opening and closing mold rotating shaft to drive the mold. The moving side mold connected to the opening and closing mold rotating shaft rotates away from the fixed side mold, and at the same time, the bottom mold support is driven toward the mold opening by the first link assembly connected between the opening and closing mold rotating shaft or the moving side mold and the bottom mold support. Movement; the moving side mold is directly connected to the opening and closing mold rotating shaft or is connected to the opening and closing mold rotating shaft through the second link assembly. The invention provides a bottom mold swing method and a swing device for a bottle blowing machine, which can realize the precise coordination between the bottom mold swing and the opening and closing of the moving side mold, the opening and closing angle of the moving side mold is small, the acceleration of the bottom mold is small, the mold closing rotation time is long, and the taking Bottle easy.

Description

technical field [0001] The invention relates to the technical field of bottle blowing, in particular to a swing method and swing device of a bottom mold of a bottle blowing machine. Background technique [0002] In the existing bottle blowing machine, the bottom mold bracket and the movable side mold are generally cylindrically hinged on one side of the center line of the mold clamping, and the bottom mold is fixed on the bottom mold bracket, which is formed by the cylindrical space cam and the space linkage mechanism. The compound mechanism realizes the swing and lift of the bottom mold. Advantages: simple mechanism, few moving parts. Disadvantages: 1) The bottom mold swings into the mold, and the opening and closing angle of the moving side mold is large; 2) The mold opening rotation time is long, the mold closing rotation time is shortened, and the dynamic characteristics of the side mold are poor; 3) It is difficult to take the bottle, and the The dynamic characteristi...

AI Technical Summary

Problems solved by technology

Disadvantages: 1) The bottom mold swings into the mold, and the opening and closing angle of the movable side mold is relatively large; 2) The turning time of the mold opening is longer, the turning time of the mold closing is shortened, and the dynamic characteristics of the side mold are poor; The dynamic characteristics of the bottle manipulator are poor; 4) The lifting acceleration of the bottom mold is large, and the dynamic characteristics are not good; 5) 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 easy 6) The contact surface between the rotor and the cam contour is easy to form a point contact, the compressive stress is large, the rotor is easily damaged or the cam contour surface is easy to wear; 7) Due to the limitation of the space size, the cam pressure angle is usually too large. Similarly, the rotor is easily damaged or Cam profile prone to wear

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