Thin glass online cutting device and process

Abstract

The invention belongs to the technical field of a float glass cold side cutting technique and specifically relates to an online cutting device for thin glass and a technique. The online cutting device for thin glass comprises a cylinder (4), a guiding wheel (5) and a cutter (6), wherein a tool rest (12) is fixedly connected with a cylinder shaft (11) at the output end of the cylinder (4); the guiding wheel (5) is fixed under the tool rest (12); the cutter (6) is fixed on one side of the guiding wheel (5). The online cutting device further comprises a proportional electromagnetic valve I (3) and a proportional electromagnetic valve II (2), wherein the proportional electromagnetic valve I (3) and the proportional electromagnetic valve II (2) are serially connected and are respectively in electric connection with a control system (10); the proportional electromagnetic valve I (3) is arranged on a position corresponding to the thick glass (1) arranged on the two sides of the thin glass; the proportional electromagnetic valve II (2) is arranged on the position corresponding to a middle thin glass (7) on the middle part of the thin glass. According to the invention, two different cutting pressures can be utilized to smoothly cut the thin glass in uneven thickness.

Description

technical field [0001] The invention belongs to the technical field of float glass cold end cutting technology, and in particular relates to a thin glass online cutting device and technology. Background technique [0002] The cutting of the glass at the cold end of float glass is done by a cross-cutting machine. At present, the cutting of glass with a general thickness is not a big problem, but the cutting rate of 0.7mm (or below) glass and thin glass below is not high, which is mainly related to the glass The thickness of the general thickness glass is basically the same in the cross section, but the cross section of the thin glass is special, it is about 3mm thick at the two sides, and 0.7mm (or less) in the middle, the two The length of each edge is between 200-300mm, and the length of the middle is generally about 3500mm. When the cutter head of the cross-cutting machine falls on the edge of thin glass and starts cutting, the first contact is 3mm glass, and then 0.7mm (o...

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Problems solved by technology

[0002] The cutting of the glass at the cold end of float glass is done by a cross-cutting machine. At present, the cutting of glass with a general thickness is not a big problem, but the cutting rate of 0.7mm (or below) glass and thin glass below is not high, which is mainly related to the glass The thickness of the general thickness glass is basically the same in the cross section, but the cross section of the thin glass is special, it is about 3mm thick at the two sides, and 0.7mm (or less) in the middle, the two The length of each edge is between 200-300mm, and the length of the middle is generally about 3500mm. When the cutter head of the cross-cutting machine falls on the edge of thin glass and starts cutting, the first contact is 3mm glass, and then 0.7mm (or less) , and finally cut 3mm glass, and the pressure of the cutting tool is provided by the spring combination structure or the proportional solenoid valve combination structure. Theoretically, the pressure provided by the spring combination structure or the proportional solenoid valve combination structure is linear and adjustable, but once the parameters of the two Selected, the provided pressure basically changes little, or the pressure for cutting 3mm glass is quite different from the required cutting pressure for 0.7mm glass. The cutting pressure provided by the current spring combination structure or proportional solenoid valve combination structure is difficult to achieve in different thicknesses. A suitable knife mark is formed on the uniform thin glass ribbon, which is easy to cause fried boards or broken pieces during cutting, resulting in a low yield of thin glass, mainly because when the thin glass transitions from 3mm to 0.7mm, the thickness difference changes greatly. Correspondingly, the required cutting pressure changes greatly. The cutting pressure provided by the existing cutting tools is relatively single. Therefore, it is necessary to provide two kinds of cutting pressure tools to be suitable for thin glass ribbons with uneven thickness.

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