Cassette assembly for manufacturing fluorescent lamps

Abstract

A cassette assembly and a method of manufacturing fluorescent lamps using the cassette assembly are provided. The cassette assembly includes a housing defining a process chamber and having a pluralityof holes in which glass tubes for the fluorescent lamps are inserted to communicate with the chamber, a carrying unit including two or more porous plates through which the glass tubes are fitted, a plurality of ring members disposed on the porous plates to preliminarily fix the glass tubes to the carrying unit by allowing the outer circumferences of the glass tubes to contact, and a locking unitfor changing the glass tubes from the preliminary fixing status to a lockup status by varying contact pressure applied between the ring members and the glass tubes.

Description

technical field [0001] The present invention relates to a fluorescent lamp manufacturing cassette assembly machine (cassette assembly) which is easy to load and operate a plurality of fluorescent lamp manufacturing glass tubes. A cassette assembly machine for fluorescent lamp manufacturing that improves productivity. Background technique [0002] Generally, fluorescent lamps are coated with a phosphor that can excite ultraviolet rays in a long and thin glass tube, and then sealed with injected light-emitting gas and mercury, and are roughly divided into cold-cathode fluorescent lamps ( CCFL: Cold Cathode Fluorescent Lamp) and External Electrode Fluorescent Lamp (EEFL: External Electrode Fluorescent Lamp). [0003] The above-mentioned external electrode fluorescent lamps have better luminous quality than cold-cathode fluorescent lamps, longer life, lower power consumption, and can be manufactured in a compact size, so they have been widely used in LCD backlight lamps in rece...

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Problems solved by technology

[0006] However, the above-mentioned manufacturing method uses a circular stage with a limited size to carry out the coating of the phosphor and the injection and sealing of the gas in the state of loading a small amount of glass tubes for manufacturing lamps, so it is difficult to improve work efficiency and Productivity

[0007] In addition, when manufacturing the above-mentioned lamps, the glass tubes for manufacturing lamps must be loaded on the above-mentioned stage one by one each time, and each glass tube needs to be connected to or separated from the chamber, and the work process is complicated. Moreover, this process consumes a lot of time when performing operations such as fluorescent liquid coating or gas injection and sealing.

[0008] In particular, when manufacturing fluorescent lamps, if the glass tubes for manufacturing lamps are separately loaded on the stage and connected to the chamber as described above, it is difficult to handle a large number of glass tubes in the manufacturing process of fluorescent lamps, and this will become a further problem. Main reasons for reducing operating efficiency or production efficiency

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