Single-ended fluorescent lamp slice pipe bending and molding device

Abstract

The invention relates to improvement of a single-ended fluorescent lamp slice pipe bending and molding device, which is characterized in that: a plurality of mechanical arm folding / separating pipe bending devices are alternately arranged on the periphery of a turntable in clearance rotation, and at least can perform radial expansion; and a glass tube heating and softening device and a separating / folding mould are arranged on the radial outside of the turntable. Compared with the prior art, a pair of mechanical arms is needed only, and can complete the whole process of pipe bending to pipe unloading, and continuous pipe bending operation after connecting pipes on the heating and softening device, so the single-ended fluorescent lamp slice pipe bending and molding device not only saves a pair of mechanical arms, but also obviously improves production efficiency by over 15 percent; no connection action exists, so bent pipes cannot be deformed, and the mould-in qualification rate can be improved by over 15 percent; and a pair of mechanical arms completes the whole process of bending pipes, so the single-ended fluorescent lamp slice pipe bending and molding device saves the waste of process connecting pipe sections in the prior pipe bending process, can save about 20mm of glass tube on two end heads for bending the slice pipe with the same specification, and can be suitable for bending and molding slice pipes of which the straight pipe sections are short.

Description

technical field [0001] The invention relates to the improvement of a single-end fluorescent lamp tube bending device, in particular to a bending device with high bending efficiency and finished product, saving glass tubes. Background technique [0002] Single-ended fluorescent lamp tubes, whether they are U-shaped, flower-shaped or lotus-shaped lamp tubes, are made of straight glass tubes that go through a bending process and two processes of moving into the mold and setting them. It can be rounded and shaped, or pressurized into the mold and then injected with pressure gas to make it smooth and shaped. For example, the simple U-shaped sheet tube, the straight tube is heated and softened, and the two ends of the glass tube are clamped by the manipulator to form a U-shape, and then moved into the mold that can be combined / separated to shape; the lotus lamp tube is held by the manipulator. The two ends of the glass tube are combined and bent into a U-shape or roughly a U-shap...

AI Technical Summary

Problems solved by technology

There are deficiencies in this pipe bending method and device: for example, the two processes of pipe bending need to be handed over by two pairs of manipulators, that is, the first pair of manipulators will combine the heated and softened glass straight pipes with the bent pipe, and then the second pair of manipulators will take over. Send it to the position of the final shaping mold, and the mold will be closed and shaped (U-shaped tube) or bent to shape (such as lotus lamp tube). This increased length needs to be cut off, which increases the waste of the process section required by the process due to the ineffective lamp tube. At the same time, some special sheet tubes that require relatively short unmelted soft sections are not suitable for mechanical bending because there is no upper and lower handover position. Rely on manual pipe bending; secondly, due to the need for two sets of manipulators to hand over the process, the molding speed will be reduced accordingly, and the production efficiency will not be improved; thirdly, the handover procedure will cause the molten glass tube to change shape due to the prolonged handover time. And the jitter during handover will lead to a decrease in the pass rate of the bent sheet tube into the mold and an increase in the scrap rate

The handover of the two pairs of manipulators brings about three major disadvantages: low molding speed, low pass rate of mold entry, increased process and waste of ineffective glass tubes. People are also aware of these three shortcomings, but they have not been effectively solved for a long time, and have long plagued single-ended fluorescent lamp tubes. Tube Forming

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