Detection device for backlight plastic frame intensity

Abstract

The invention relates to the technical field of quality testing, in particular to a backlight rubber frame strength detection device, which can increase the fastness of the rubber frame when it is fixed, and improve the reliability of use; Tensile strength test, reducing the limitations of use; and can support the movable rod to improve its stability; including the placing table, left support plate, right support plate, cylinder and movable rod, the movable rod is installed at the left output end of the cylinder; It also includes a front support plate, a rear support plate, a top plate, a hot and cold fan, a cold air duct, a hot air duct and an exhaust pipe. The fixing piece and the right fixing piece, the left fixing piece includes the left fixing plate, the first upper baffle plate, the first lower baffle plate and the left connecting plate, the right fixing piece includes the right fixing plate, the second upper baffle plate, and the second lower baffle plate and the right connecting plate; also includes a support block, the support block is arranged at the bottom of the second lower baffle.

Description

technical field [0001] The invention relates to the technical field of quality testing, in particular to a device for detecting the strength of a plastic frame of a backlight source. Background technique [0002] As we all know, during the assembly process of the backlight, it is necessary to wrap the frame on its outer edge, which is called a plastic frame in the industry. , in order to guarantee the quality of the backlight source, it is widely used in the field of quality inspection; the existing backlight frame strength detection device includes a placement table, a left support plate, a right support plate, a cylinder and a movable rod, The left support plate and the right support plate are respectively arranged on the left and right sides of the top of the placing table, the cylinder is installed on the left end of the right support plate, and a tension detector is arranged on the cylinder, the movable rod is installed on the left output end of the cylinder, the left e...

AI Technical Summary

Problems solved by technology

[0002] As we all know, during the assembly process of the backlight, it is necessary to wrap the frame on its outer edge, which is called a plastic frame in the industry. , in order to guarantee the quality of the backlight source, it is widely used in the field of quality inspection; the existing backlight frame strength detection device includes a placement table, a left support plate, a right support plate, a cylinder and a movable rod, The left support plate and the right support plate are respectively arranged on the left and right sides of the top of the placing table, the cylinder is installed on the left end of the right support plate, and a tension detector is arranged on the cylinder, the movable rod is installed on the left output end of the cylinder, the left end of the movable rod and There are hooks on the right end of the left support plate; when using this backlight rubber frame strength detection device, you only need to put the two ends of the rubber frame on the two sets of hooks respectively, and then start the cylinder to drive the hook on the movable rod to move to the right. The tension is applied to the frame until the plastic frame breaks, and the tensile force change and the tensile value on the tensile force detector at the instant the plastic frame breaks are detected by the tension detector, so as to obtain the maximum tensile value that the plastic frame can withstand; this backlight plastic frame strength detection During the use of the device, it was found that the fixing effect of the hook is limited, and the rubber frame is easy to fall out of the hook during the test, and the reliability of use is low; and only the tensile test at room temperature can be performed, and the tensile strength of the rubber frame under different temperature conditions cannot be tested. The limitations are high; and the stability of the movable rod is poor during the detection process, which affects the test effect

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