A mold opening and closing device for a bottle blowing machine

Abstract

The invention relates to bottle blowing machine equipment, in particular to a die opening and closing device for a bottle blowing machine. The die opening and closing device for the bottle blowing machine comprises a die frame, bottle body die devices, die seats, a power device and a bottom film assembly. The bottle body die devices, the die seats and the bottom film assembly are arranged in the die frame. The die opening and closing device further comprises a rotating device controlling the bottle body die devices to be subjected to die opening and die closing. The rotating device comprises a rotating plate, an arc gear, a rotating shaft and a bottom film cam. The arc gear is in an arc shape with sawteeth on the outer side, the outer side of the arc gear is connected with the power device through a gear, and the inner side of the arc gear is fixed to one side of the rotating plate. A center hole is formed in the center position of the rotating plate, the rotating shaft penetrates the center hole to be connected with the bottom film cam, and the rotating plate is further provided with a sliding way controlling the bottle body die devices to transversely move. By means of the die opening and closing device for the bottle blowing machines, the mutually-matched rotating device is used for replacing a traditional connecting rod mechanism, oil does not need to be frequently injected for lubrication, damage of a hinge bearing is avoided, and the maintenance work is more convenient.

Description

technical field [0001] The invention relates to bottle blowing machine equipment, in particular to a mold opening and closing device for 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. Whether the blow molding device of the blow molding machine is stable and fast , is one of the important factors that affect the output and stability of the blow molding machine. The blow molding device of the blow molding machine generally includes the following actions: the preform is clamped by the feed claw and sent to the mold, the bottom mold of the clamping mechanism rises, and the closing The bottle body mold of the mold mechanism is closed, the mold locking mechanism is locked, the preform is released by the preform feeding claw, the he...

AI Technical Summary

Problems solved by technology

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 at the hinged position, which will easily cause mess on the bottle blowing site; if the lubricating oil is not filled in time, then The hinges may not be 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.

[0004] At the same time, the existing mold opening and closing devices often use multiple pneumatic components, which are costly and complicated to control. Any loose or damaged component will cause a shutdown failure. dull etc.

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