Support rod device and substrate bearing device with same

Abstract

A support rod device comprises a support rod, a support sleeve, support balls, and an elastic element; the support rod comprises a first end and a second end; the first end has a first end face provided with a mounting cell; the support sleeve slidably sleeves the first end of the support rod along the axis of the support rod; the support sleeve is provided with a support portion having a through hole and corresponding to the firs end face; the support ball arranged in the mounting cell of the support rod is partially exposed from the first end face and is aligned with the through hole; the elastic element is connected between the support rod and the support sleeve. The invention further relates a substrate bearing device with the support rod device; by the use of the substrate bearing device, damage of a substrate caused when the substrate is supported by the substrate bearing device can be prevented effectively.

Description

technical field [0001] The invention relates to the technical field of display panel manufacturing equipment, in particular to a strut device and a substrate carrying device having the strut device. Background technique [0002] A Liquid Crystal Display (LCD) is widely used in the field of flat panel display due to its characteristics of low radiation, thin thickness and low power consumption. In the production process of liquid crystal panels, in order to facilitate operation and transmission and avoid damage to the glass substrate, the glass substrate is often placed on a substrate carrying device with a support rod (Pin) to perform the required manufacturing process. [0003] figure 1 It is a structural schematic diagram of an existing substrate carrying device carrying a substrate. Such as figure 1 As shown, the substrate carrying device 200 includes a platform 210 and a plurality of support rods 220 vertically arranged on the platform 210 . The second end 222 of the...

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Problems solved by technology

[0004] However, since the lower surface 231 of the substrate 230 is in direct contact with the balls 223 of the struts 220, the weight of the substrate 230 itself and when the external force on the substrate 230 has a vertical component (that is, a component perpendicular to the platform 210) will cause the substrate to Dimples appear at the contact between the lower surface 231 of 230 and the ball 223

The horizontal component of the external force on the substrate 230 parallel to the conveying direction of the substrate 230 makes the substrate 230 still slide relative to the platform 210 along the conveying direction. At this time, the vertical component of the external force subjected to the substrate 230 continues to act on the lower surface of the substrate 230 231, resulting in scratches on the lower surface 231 of the substrate 230

In addition, since the substrate 230 is in point contact with the top of the ball 223, the contact area is small, and the friction between the substrate 230 and the ball 223 is very small. When the external force acting on the substrate 230 has a horizontal component that is not parallel to the conveying direction, It is easy to cause the substrate 230 to drift during transmission, thereby causing damage to the substrate 230

Whether it is pits, scratches or drift, the substrate 230 is damaged, which will affect the effect of the subsequent process, and then affect the performance of the liquid crystal display device.

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