A mold opening and closing device for the blow mold of a blow molding machine

Abstract

The invention discloses a mold opening and closing device for a bottle blowing mold of a bottle blowing machine. The device comprises a mold frame, a left bottle body mold, a right bottle body mold, a left mold base, a right mold base, a left mold lock plate, a right mold lock plate, and a driving seat. The left and right mold lock plates are vertically and slidably arranged on the mold frame; mold lock blocks at intervals are arranged on the left and the right mold lock plates; the left and right mold seats are provided with embedding holes; the driving seat is arranged on the mold frame, capable of sliding back and forth and driven by a power device; the driving seat is provided with a left mold opening and closing curve groove, a mold right opening and closing curve groove, a left mold lock curve groove and a right mold lock curve groove; the left and right mold seats are respectively provided with a mold opening and closing cooperation part constrained in the left mold opening and closing curve groove, a mold right opening and closing curve groove; and the left and right mold lock plates are respectively provided with a mold lock cooperation part constrained in the left and right mold lock curve grooves. The mold opening and closing device has the advantages of simple structure, substitutes the four connecting rod mechanism in the prior art, does not require frequent lubrication, prevents damage of hinged bearing, and is convenient for maintenance.

Description

technical field [0001] The invention relates to a mold opening and closing device, in particular to a mold opening and closing device for a bottle blowing mold of a bottle blowing machine. Background technique [0002] In recent years, China's beverage industry has developed rapidly, and it has driven the rapid development of beverage machinery. The blow molding machine is a commonly used machine for producing beverage bottles in beverage machinery factories. The mold opening and closing mechanism affects the output of the blow molding machine. and one of the important factors of stability. The current traditional mold opening and closing device includes a mold base, left and right mold bases, left and right bottle body molds, the left mold base and the right mold base are horizontally slid and installed on the mold base, and the left bottle body mold is fixed on the left mold base Above, the right bottle body mold is fixed on the right mold base, and the left and right bot...

AI Technical Summary

Problems solved by technology

The current traditional mold opening and closing device includes a mold base, left and right mold bases, left and right bottle body molds, the left mold base and the right mold base are horizontally slid and installed on the mold base, and the left bottle body mold is fixed on the left mold base Above, the right bottle body mold is fixed on the right mold base, and the left and right bottle body molds cooperate with each other. The left and right mold bases use four sets of linkage mechanisms to drive the opening, closing and locking of molds. However, this structure has great disadvantages : Due to the use of multiple sets of connecting rod structures, it is necessary to frequently add lubricating oil to the hinged position, which is likely to cause mess on the blowing site; in addition, due to the many hinged positions, once the operator is negligent in filling the lubricating oil, the hinged position may be damaged. Not fully lubricated, which affects the flexibility of the four-bar linkage

Easy to cause hinge bearing damage

In addition, the left and right bottle body molds need to be locked after the molds are closed, which is also locked by the four-bar linkage. The four-bar linkage is generally a casting. Repairs are inconvenient and require specialized tools and personnel to complete

The above-mentioned four-bar linkage mechanism is generally driven by a hydraulic cylinder or an air cylinder, which has a complex structure, poor mold clamping accuracy, and large motion inertia.

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