Metal halide lamp electrical arc tube and neck ampulla contracting shell interlocking machine, forming and necking method

Abstract

The invention discloses a metal halide lamp arc tube shrank neck shell interlocking machine and the shaping and neck shrinking method thereof. The interlocking machine comprises a machine frame (1), a clamp head and driving and reversing mechanism (2), a mould driving and reversing and mould closing shaping mechanism (3), a fire head moving mechanism (4), an automatic blanking mechanism (5), an automatic feed mechanism (6), a shrank neck trolley driving and reversing mechanism (7) and a fire head air supplying mechanism (8). The shaping and neck shrinking method comprises preheating, material piling, strongly burning, mould closing, and shrank neck heating and shrinking neck. Using the invention and the shaping and neck shrinking method ensure that the appearance and the size of the shell have good consistency and even wall thickness. The internal hole on the shrank neck part is controllable with good consistency, high production efficiency and rate of finished products.

Description

technical field [0001] The invention relates to a forming process and equipment for a bulb, in particular to a forming process and equipment for a constricted bulb of a metal halide lamp arc tube. Background technique [0002] At present, one method of metal halide lamp arc tube necking blister forming technology at home and abroad is to process the necking parts at both ends of the bulb with a manual necking machine after forming on a blowing machine. However, after the bulb is cooled Re-necking will cause deformation of the shape of the bulb, and the size of the inner holes at both ends is not consistent; another method is to use rollers to form both the bulb and the neck. The given speed and the size of the flame will all affect the size of the bulb after forming, so this method will cause a large error in the outer diameter of the bulb and uneven wall thickness. Contents of the invention [0003] Technical problem: The object of the present invention is to provide a m...

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Problems solved by technology

[0002] At present, one method of metal halide lamp arc tube necking blister forming technology at home and abroad is to process the necking parts at both ends of the bulb with a manual necking machine after forming on a blowing machine. However, after the bulb is cooled Re-necking will cause deformation of the shape of the bulb, and the size of the inner holes at both ends is not consistent; another method is to use rollers to form both the bulb and the neck. The given speed and the size of the flame will affect the size of the bulb after forming, so this method will cause a large error in the outer diameter of the bulb and uneven wall thickness.

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