Tire vulcanizing apparatus

Abstract

In a tire vulcanizing apparatus in which a lift and slide mechanism is slidable back to an evacuation position, an upper die can uniformly exert a pressing force during a vulcanizing process. The tire vulcanizing apparatus (1A) for processing a green tire into a complete-tire shape by inserting the green tire in a die separable into a lower die (3) and an upper die (4) and heating and pressing the green tire, wherein the slide mechanism is provided so that the upper die (4) separated and lifted from the lower die (3) can be reciprocated by linear slides (14) between a vulcanizing position at which the upper die (4) is pushed toward the lower die (3) fixed to a base (2) and an evacuation position at which the green tire is placed between the upper die (4) and the lower die (3) and is taken out after being formed into a complete tire, and the upper die (4) is installed under a beam (11); with a lift cylinder mechanism (30) therebetween, the beam (11) being integrated with tie rods (13) which is movable upward and downward along guide holes of the linear slides (14) by operations of the lift cylinders (12).

Description

technical field [0001] The invention relates to a tire vulcanizing device for vulcanizing and forming tire blanks. Background technique [0002] The tire vulcanization device is a device that puts a raw rubber tire (green tire) preformed into a shape similar to the finished product into a metal mold, and applies heat and pressure to finally form the shape of the finished tire. [0003] In this kind of tire vulcanization device, especially in the tire vulcanization device for manufacturing large tires with an outer diameter of more than 1.5m, in order to facilitate the feeding of the green tire before vulcanization and the delivery of the finished tire after vulcanization, a method of using the bottom tire is adopted. The structure of the slide-back method in which the upper die moves to the retracted position after the die is separated and raised. [0004] Figure 5 and Image 6 It shows the conventional structure of the tire vulcanizing device adopting the slide back stru...

AI Technical Summary

Problems solved by technology

[0012] However, the tire vulcanizing device 1 of the above-mentioned conventional structure is a device that makes the elevating / sliding mechanism 10 slide back to the standby position, and sends and feeds the tire between it and the lower die 3, but in the vulcanizing position , the pressurizing cylinder 21 arranged below pulls the connecting rod 13 to pressurize the green tire in the metal mold

However, in this pressurization method, when the connecting rod 13 is pulled and pressurized by the pressurizing cylinder 21 disposed below, the beam 11 and the connecting rod 13 that are pulled down near the ends may be deflected.

[0013] There is such deflection of the beam 11 etc. that the pressing force of the upper mold 4 which is pulled down together with the beam 11 and pushes the lower mold 3 from above is not sufficient. uniform problem

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