Tightness-adjustable substrate transmission device

Abstract

The invention discloses a tightness-adjustable substrate transmission device, which is used for a substrate cleaning process of an OLED production line and comprises a roller shaft, a roller made of engineering plastics, a clamping sleeve and a puller nut. An inner hole penetrates through the roller; the centre of the right end of the roller is protruded outward to form a connection part; a taper hole is formed in the centre of the connection part; the clamping sleeve is conical, and a shaft hole penetrates through the clamping sleeve; the taper of the clamping sleeve is the same as that of the taper hole; the clamping sleeve is arranged in the taper hole; the diameter of the left end of the clamping sleeve is larger than the aperture of the left end of the taper hole; the diameter of the right end of the clamping sleeve is larger than the aperture of the right end of the taper hole; a longitudinal opening is formed on the clamping sleeve; the puller nut comprises a nut body; the left end of the nut body is in threaded connection with the connection part; the right end of the nut body radially shrinks to form a puller baffle; and a through hole is formed on the puller baffle, wherein the inner hole, the shaft hole and the through hole all fit with the roller shaft. The invention has the advantages of long service life, stable substrate transmission and tight adjustment between the roller and the roller shaft.

Description

technical field [0001] The invention relates to a substrate conveying device, in particular to a substrate conveying device which is used in a substrate cleaning process on an organic light-emitting diode production line and requires smooth conveyance of the substrate. Background technique [0002] OLED display screen is a new product in digital products. OLED is Organic Light-Emitting Diode (Organic Light-Emitting Diode). Larger market potential. OLED display equipment is a current-mode semiconductor light-emitting device based on organic materials. Its typical structure is to make a layer of tens of nanometers thick organic light-emitting material as the light-emitting layer on a thin plate such as a glass substrate. There is a metal electrode with a low work function on the top of the light-emitting layer. When a voltage is applied to the electrode, the light-emitting layer will generate light. Radiation; The luminescent mechanism of OLED is to inject electrons and hole...

AI Technical Summary

Problems solved by technology

However, when transferring substrates, especially when transferring substrates in the substrate cleaning process, the existing substrate transfer device also has the following problems: High precision requirements, but in the existing substrate transfer device, the roller and the roller shaft are only fixed by screws. When the roller shaft drives the roller to rotate, the axis of the roller will deviate from the axis of the roller shaft, thus affecting The coaxiality between the roller shaft and the roller causes relative movement between the roller and the roller shaft. At this time, when the substrate is transported on multiple rollers, the lower surface of the substrate cannot completely contact the roller below the substrate, causing the substrate to vibrate. , and because the substrate is often made of thin plates such as glass substrates, the substrate is worn or even broken due to vibration during the transmission process; Due to wear and tear, the axis of the roller will deviate from the axis of the roller shaft, causing the substrate to wear and break, and even make the roller shaft unable to effectively drive the roller to rotate, affecting the safety and security of substrate transmission. Efficiency; on the other hand, in the substrate cleaning process, the cleaning fluid will corrode the parts of the roller transfer device, which not only affects the service life of the roller transfer device, but also affects the stability of the substrate transfer

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