Lamp tube forming mold

Abstract

The invention belongs to the field of lamp tube manufacturing and specifically relates to a spiral lamp tube forming mold which comprises a mold main body and a connection shaft, wherein the connection shaft is arranged on the mold main body and is used for moving or rotating the mold main body, a cavity is arranged in the mold main body, the connection shaft and the mold main body are detachablyconnected, a through hole for air flows inside and outside the cavity to circulate is arranged on the mold main body, the connection shaft and the through hole are respectively arranged at the two ends of the mold main body, a connection opening with an internal thread is arranged on the mold main body, and an external thread matched with the internal thread is arranged on the connection shaft; the connection shaft is divided into a connection section and a transmission section, the connection section is close to and connected with the mold main body, the diameter of the connection section islarger, the transmission section is far from the mold main body, and the diameter of the transmission section is smaller. The mold is provided with the cavity, so that a used material of the mold is reduced, and material cost is reduced; furthermore, preheating time is shortened to 10 to 20 minutes from original 1 hour, and work efficiency is improved; meanwhile, preheating energy consumption is reduced, and cost is reduced.

Description

Technical field [0001] The invention belongs to the field of lamp tube manufacturing, and specifically relates to a spiral-shaped lamp tube forming mold. Background technique [0002] The existing forming molds used for manufacturing the spiral lamp tube are all solid molds, and the connecting shaft and the mold are integrally formed, which requires a lot of materials, high growth, and troublesome processing. In the actual tube forming process, the mold needs to be preheated in advance to make the mold temperature close to the temperature of the glass tube before sending it to the tube to prevent tube bursting when the glass tube is in contact with the mold with a large temperature difference. Some of these are solid molds, and it usually takes 1 hour to predict the mold. The preheating time is too long and the energy consumption is expected to be too high, which increases the production cost of the lamp and reduces the production efficiency. For example, in the molding device o...

AI Technical Summary

Problems solved by technology

In the actual lamp tube forming process, the mold needs to be preheated in advance before being sent into the lamp tube to make the temperature of the mold close to the temperature of the glass lamp tube, so as to prevent the glass lamp tube from bursting when it comes into contact with the mold with a large temperature difference. Some of them are solid moulds. It usually takes 1 hour to predict the mould. If the preheating time is too long, the expected energy consumption is too high, which increases the production cost of the lamp tube and reduces the production efficiency.

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