Clamping mechanism during glass forming

Abstract

The invention provides a clamping mechanism during glass forming. The clamping mechanism comprises a cylinder, a hinge and a mold holding clamp, wherein the cylinder comprises a front end cover, a rear end cover, a cylinder barrel, a piston and a piston rod; two ends of the cylinder barrel are respectively connected with the front end cover and the rear end cover in an airtight mode; spacers are respectively arranged between the cylinder barrel and the front end cover and the rear end cover; the piston is slidably arranged in the cylinder barrel; one end of the piston rod is connected with the piston, and the other end of the piston rod extends out of an opening in the front end cover and is in transmission connection with the hinge by virtue of a connecting rod; and the hinge is movably connected with the mold holding clamp by virtue of the connecting rod. The stroke of the piston of the cylinder is increased, and the stroke allowance of the piston is remained, so that the aim of increasing and remaining the clamping force of the holding clamp is achieved.

Description

technical field [0001] The invention relates to the field of glass bottle making machines, in particular to a clamping mechanism for glass forming. Background technique [0002] The existing determinant bottle-making machine mold holding tongs are installed on the holding tongs, the opening and closing of the mold is driven by the opening and closing of the holding tongs, and the opening and closing action of the holding tongs depends on the telescopic action of the holding tongs switch cylinder to drive the connecting rod, twisting driven by the chain. The switch cylinder is driven by compressed air to drive the cylinder piston. The maximum stroke of the piston is 126mm, and when the mold is in the closed or open position, the piston is in close contact with the front and rear cylinder heads of the cylinder. When the mold is injected with glass material liquid for blow molding, the mold will generate reverse tension, which makes the mold slightly open. At this time, becaus...

AI Technical Summary

Problems solved by technology

When the mold is injected with glass material liquid for blow molding, the mold will generate reverse tension, which makes the mold slightly open. At this time, because the push cylinder of the clamp has reached the limit of the stroke, there is no enough clamping force to ensure the closed state of the mold, and the whole After the mechanism has been running for a period of time, the various connecting parts will wear out, resulting in insufficient clamping force of the clamp, and the mold is not closed tightly, resulting in various defects in the production of glass bottles.

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