Rotary blowing clamping head for film coating of inner wall of light emitting diode (LED) lamp tube

Abstract

The invention provides a rotary blowing clamping head for the film coating of the inner wall of a light emitting diode (LED) lamp tube. An integral flange seat is connected above a conical rotation seat capable of inserting a lamp tube head from a bottom trumpet-shaped opening; a plurality of sliding chutes which communicate with a top tube head insertion hole in the conical rotation seat are distributed around the flange seat; the plurality of sliding chutes are independently provided with a sliding claw which can be clamped into the chutes, and the tail end of each sliding claw is exposed from the tube head insertion hole; the plurality of sliding claws are tensioned through a circular ring shaped tension spring to be positioned in the sliding chutes; a flange plate in bolt fixing is arranged above the flange seat; a blowing nozzle is rotatably installed above the flange plate; and the middle hole of the blowing nozzle and a lamp head insertion hole in the bottom conical rotation seat are through. During utilization, the LED lamp tube head is sheathed into the whole of the device, and the plurality of sliding claws expand to the periphery to tension a top tube. Due to top and bottom vertical positioning, air can be inwards blown through the blowing nozzle, and therefore, a coated film is even and consistent.

Description

technical field [0001] The invention relates to a device for coating film of an LED lamp tube, in particular to a rotary blowing chuck for coating the film on the inner wall of the LED lamp tube. Background technique [0002] In the production process of LED lamp tubes, the inner wall coating process is involved. The production method is to spray the coating glue on the inner wall, insert it into the chuck around the equipment disc at the same time, and blow hot air inward through rotation to achieve the drying of the inner wall coating film. The wall is fixed, but the rotating chuck of the existing equipment cannot fix the lamp tube, causing the lamp tube to shake seriously when rotating, making the lamp tube prone to deflection, resulting in uneven heating of the coating film on the inner wall of the LED lamp tube, forming a coating film Uneven thickness directly affects the stability of product quality. Contents of the invention [0003] The purpose of the present inve...

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Problems solved by technology

[0002] In the production process of LED lamp tubes, the inner wall coating process is involved. The production method is to spray the coating glue on the inner wall, insert it into the chuck around the equipment disc at the same time, and blow hot air inward through rotation to achieve the drying of the inner wall coating film. The wall is fixed, but the rotating chuck of the existing equipment cannot fix the lamp tube, causing the lamp tube to shake seriously when rotating, making the lamp tube prone to deflection, resulting in uneven heating of the coating film on the inner wall of the LED lamp tube, forming a coating film Uneven thickness directly affects the stability of product quality

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