Preheating device of FPC bending hot air gun

Abstract

The invention discloses a preheating device for an FPC bending hot air gun, and relates to the technical field of FPC bending. The preheating device for the FPC bending hot air gun comprises a motor, a rotating disc is fixedly installed on an output shaft of the motor, an air heater is arranged above the rotating disc, an air outlet of the air heater is fixedly connected with the top end of a flow dividing pipe, the bottom end of the flow dividing pipe is fixedly connected to the middle of the top of the rotating disc, a plurality of closed heating mechanisms distributed in a surrounding mode at equal intervals are fixedly installed on the upper surface of the rotating disc, and a hot air conveying mechanism and a micro air cylinder are arranged in each closed heating mechanism. According to the preheating device for the FPC bending hot air gun, through the arrangement of the closed heating mechanisms, FPC can be heated in a closed environment, compared with a traditional heating mode, heat loss can be effectively reduced, and meanwhile, compared with a centralized batch heating mode, the heated effect of a single FPC can be more accurately controlled.

Description

technical field [0001] The invention relates to the technical field of FPC bending, in particular to an FPC bending heat gun preheating device. Background technique [0002] Flexible circuit board is a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. Referred to as soft board or FPC, it has the characteristics of high wiring density, light weight, and thin thickness. At present, with the function upgrading and thinning of mobile electronic equipment, in order to adapt to the internal structure of electronic equipment, the bending shape requirements of FPC are getting higher and higher. LCP sheet has been widely used in the past two years due to its good forming effect and small rebound. However, cold bending of LCP boards is prone to fracture or delamination, so the board needs to be preheated before bending. [0003] The traditional heating method heats the FPC surface by blowing hot air. This h...

AI Technical Summary

Problems solved by technology

However, cold bending of LCP boards is prone to breakage or delamination, so the board needs to be preheated before bending

[0003] The traditional heating method heats the FPC surface by blowing the hot air. This heating method easily leads to uneven heating of the FPC surface, and there is a heating blind area, which affects the subsequent bending process.

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