Method for quickly judging rib line position of float glass

Abstract

The invention belongs to the technical field of glass quality detection, and particularly discloses a method for rapidly judging the rib line position of float glass. The method is used for solving the problem that a polishing method used in the prior art is long in time consumption for judging rib line positions. Comprising the following steps: firstly, taking two pieces of auxiliary glass without rib line defects, respectively attaching two opposite surfaces of to-be-detected glass with rib line defects to one piece of auxiliary glass, ensuring that the flow directions of the auxiliary glass and the to-be-detected glass are consistent, and coating anisole on the surfaces, in contact with the to-be-detected glass, of the auxiliary glass to form a glass assembly; then, irradiating the glass assembly by using a projection lamp, and projecting the glass assembly to a white board curtain for inspection and observation; if the rib lines are observed, the rib lines are on the body of the glass to be detected; if no rib line exists, the rib line is on the upper surface and / or the lower surface of the to-be-detected glass. The method is easy to operate, efficient and accurate, and has great application and popularization value.

Description

Technical Field

[0001] The invention belongs to the technical field of glass quality detection, and in particular relates to a method for quickly determining the position of ribs in float glass. Background Art

[0002] Float glass ribs are uneven stripes or ripples caused by various reasons during the melting and forming process of glass. These ribs may affect the transparency and optical properties of the glass, so measures need to be taken to effectively control them.

[0003] Some ribs are located inside the glass (i.e. the glass body), which is generally caused by raw materials or melting; some ribs are located on the upper and / or lower surfaces of the glass, which are generally generated during the glass forming process. Different locations of ribs require different solutions. Therefore, accurately determining the location of ribs is the prerequisite for improving glass quality.

[0004] The traditional method of detecting ribs is: Figure 2 As shown, through the projection lamp 3, light is irradiated on the glass 2 to be inspected and projected onto the whiteboard curtain 5. The stripe width and light-darkness difference on the whiteboard curtain 5 are observed and compared with the standard sample 4 with rib defects, so as to determine the rib level of the glass 2 to be inspected. This method can only determine whether the glass has ribs, but cannot determine whether the ribs are on the main body of the glass or on the upper and lower surfaces. Therefore, it is necessary to first polish the surface of the glass 2 to be inspected (3μm is polished off on the upper and lower surfaces), and then use the traditional rib detection method to check whether the glass 2 to be inspected has rib defects. If there are still ribs, it means that the ribs are on the main body of the glass 2 to be inspected; if the ribs disappear after polishing, it means that the ribs are on the upper and lower surfaces of the glass 2 to be inspected. Using the above polishing method to determine the position of the ribs not only requires professional polishing tools, but also takes a long time. Summary of the invention

[0005] The purpose of the present invention is to provide a method for quickly determining the position of ribs in float glass, which effectively solves the problem that the polishing method used in the prior art for determining the position of ribs is time-consuming.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for quickly judging the position of ribs in float glass comprises the following steps: firstly, taking two auxiliary glasses without rib defects, and coating anisole on any surface of each auxiliary glass.

[0008] Secondly, the two opposite surfaces of the glass to be inspected with rib defects are respectively bonded to the surface of an auxiliary glass coated with anisole, and the flow directions of the auxiliary glass and the glass to be inspected are ensured to be consistent, so as to form a glass assembly.

[0009] Finally, the glass assembly is illuminated with a projection lamp and projected onto a whiteboard screen for inspection and observation; if ribs are observed, it means that the ribs are in the body of the glass to be inspected; if no ribs are observed, it means that the ribs are in the upper surface and / or lower surface of the glass to be inspected.

[0010] Furthermore, the auxiliary glass is a thick plate glass with a thickness of 5 to 6 mm.

[0011] Furthermore, during the inspection, the distance between the projection lamp and the glass assembly was 7.5 m, and the distance between the glass assembly and the whiteboard screen was 1.2 m.

[0012] Furthermore, the length and width of the auxiliary glass are both 20 cm.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] The method for determining the position of the rib pattern of float glass provided by the present invention not only does not require professional equipment, but is also simple to operate, efficient and accurate, has great application value, and is suitable for wide promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the glass assembly of the present invention.

[0016] Figure 2 It is a schematic diagram of the inspection device used in the traditional rib pattern detection method.

[0017] Explanation of reference numerals: auxiliary glass-1; glass to be inspected-2; projection lamp-3; standard sample-4; whiteboard screen-5. DETAILED DESCRIPTION

[0018] Embodiment 1: A method for quickly determining the position of the rib pattern of float glass comprises the following steps: First, two auxiliary glasses 1 without rib pattern defects are taken, and anisole is coated on any surface of each auxiliary glass 1. In this embodiment, the auxiliary glass 1 without rib pattern defects is a thick plate glass with a thickness of 5 to 6 mm, and the length and width of the auxiliary glass 1 are both 20 cm.

[0019] Secondly, the two opposite surfaces of the glass to be inspected 2 with rib defects are respectively bonded to the surface of an auxiliary glass 1 coated with anisole, and the flow directions of the auxiliary glass 1 and the glass to be inspected 2 are ensured to be consistent, so as to form a glass assembly (such as Figure 1 shown).

[0020] Finally, the glass assembly is illuminated by the projection lamp 3 and projected onto the whiteboard screen 5 for inspection and observation. During the inspection, the distance between the projection lamp 3 and the glass assembly is 7.5m, and the distance between the glass assembly and the whiteboard screen 5 is 1.2m. If ribs are observed, it means that the ribs are in the main body of the glass 2 to be inspected; if there are no ribs, it means that the ribs are in the upper surface and / or lower surface of the glass 2 to be inspected.

[0021] The present invention selects anisole patch because: (1) anisole has the same refractive index as glass and will not interfere with the test results. (2) anisole will fill the small gap between the two pieces of glass. (3) anisole is highly volatile and excess anisole will evaporate quickly. It is worth noting that anisole is flammable and has a pungent odor, so it needs to be tested in a well-ventilated place and attention should be paid to fire prevention.

[0022] The method for determining the position of the rib pattern of float glass provided by the present invention not only does not require professional equipment, but is also simple to operate, efficient and accurate, has great application value, and is suitable for wide promotion.

[0023] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A method for quickly determining the position of float glass ribs, characterized in that: The following steps are involved: First, two auxiliary glasses without rib defects are taken, and anisole is coated on any surface of each auxiliary glass; Secondly, the two opposite surfaces of the glass to be inspected with the rib defect are respectively bonded to the surface of an auxiliary glass coated with anisole, and the flow directions of the auxiliary glass and the glass to be inspected are ensured to be consistent, so as to form a glass assembly; Finally, the glass assembly is illuminated with a projection lamp and projected onto a whiteboard screen for inspection and observation; if ribs are observed, it means that the ribs are in the body of the glass to be inspected; if no ribs are observed, it means that the ribs are in the upper surface and / or lower surface of the glass to be inspected.

2. The method for quickly determining the position of float glass ribs according to claim 1, characterized in that: The auxiliary glass is a thick plate glass with a thickness of 5 to 6 mm.

3. The method for quickly determining the position of float glass ribs according to claim 2, characterized in that: During inspection, the distance between the projection lamp and the glass assembly is 7.5m, and the distance between the glass assembly and the whiteboard screen is 1.2m.

4. The method for quickly determining the position of float glass ribs according to claim 3, characterized in that: The length and width of the auxiliary glass are both 20 cm.

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