Spinneret detection equipment and method

Abstract

The invention provides spinneret plate detection equipment, and the equipment comprises a camera device which is disposed above a spinneret plate placement plane, and is used for photographing the spinneret plate; a horizontal rotating platform which is provided with a placement part for placing the spinneret plate, and can enable the spinneret plate to rotate on the placement plane; a laser distance measurement sensor which is disposed above the spinneret plate placement plane, can move horizontally and is used for detecting the surface distance of the spinneret plate; and a detection control device which receives the surface distance, measured by the laser distance measurement sensor, of the spinneret plate, and adjusts the photographing angle of the camera device according to the surface distance of the spinneret plate. The photographing angle enables a photographing plane to be roughly parallel to a tangent plane of a spinneret plate detection point. The detection control device receives a spinneret plate image of the camera device, so as to measure a spinneret plate micropore. The equipment cannot cause detection leakage of the spinneret plate micropore.

Description

technical field [0001] The invention relates to spinneret detection technology, in particular to automatic spinneret detection equipment and method. Background technique [0002] Carbon fiber has excellent properties unmatched by other fibers in special application fields such as high strength, light weight, high temperature resistance, and corrosion resistance. It is a high-tech material for both military and civilian purposes. (Manufacture of Shenzhou spacecraft and large aircraft), national defense technology (missile) and other national high-tech strategic projects all have huge demand for carbon fiber. In my country, there are currently more than 40 large and small enterprises producing carbon fiber, with a total production capacity of 16,000-20,000 tons. However, due to the lack of core technology, the actual output of carbon fiber in my country is only about 2,000 tons. The manufacturing process of carbon fiber is generally made of polyacrylonitrile fiber (PAN), pit...

AI Technical Summary

Problems solved by technology

The bottom irradiation method of strong light source can only observe whether the holes on the entire board surface are transparent and whether there are holes blocked. It is easy to miss inspection, and it is impossible to find small dirt in the holes, and it is impossible to quantify the data of the microholes.

Compared with visual inspection, inspection under a microscope can enlarge the hole and observe the fine dirt in the hole. However, since the carbon fiber spinneret has tens of thousands of micropores, and the distance between the holes is only less than 100 μm , so missed detection is very easy to happen, even if dirt is detected in a certain hole, it is difficult to find this hole on the spinneret

In addition, the surface of some wet spinning spinnerets is an arc surface, and the direction of the hole is consistent with the normal direction of the arc surface. The detection under the microscope needs to be continuously adjusted. When the angle difference between the direction of the hole and the detection direction of the eyepiece is too large, the hole difficult to detect

Similarly, this detection method cannot provide relevant detection arguments for whether the parameters of the hole are qualified.

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