Cooling device for improving glass silk-screen efficiency and yield

Abstract

The utility model belongs to the technical field of glass production equipment, and particularly discloses a cooling device for improving glass silk-screen efficiency and yield. The problem that at present, glass washed through a washing machine needs to be taken down, cooled and then subjected to silk screen printing is solved. Comprising an air supply cover erected above a conveying roller located at the tail end of the cleaning machine, 2-3 centrifugal fans are fixed to the air supply cover, filters are installed at air inlets of the centrifugal fans, air outlets of the centrifugal fans face downwards, and screens used for evenly dispersing cooling air are arranged at the air outlets of the centrifugal fans; the air supply cover comprises a rectangular fixing plate and surrounding plates arranged on the periphery of the fixing plate, the centrifugal fans are linearly arranged on the fixing plate in the length direction of the fixing plate, supporting legs are arranged at the left end and the right end of the fixing plate, and the screen is arranged below the fixing plate. According to the utility model, the online production of the cleaning machine and the screen printing machine is realized, and the production efficiency and yield of glass screen printing are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to glass production equipment technical field especially relates to a cooling device for improving glass silk screen printing efficiency and yield. BACKGROUND

[0002] At present, the temperature of glass after washing by the cleaning machine is about 40 DEG C, and the best temperature for silk screen printing is 20~24 DEG C, therefore, in order to not affect the silk screen printing effect, the glass after washing by the cleaning machine must be taken down and placed on the shelf to stand and cool down. In the process of standing, the glass will inevitably be dirty and scratched. Therefore, a cooling device is urgently needed, which can directly reduce the temperature of the glass after washing by the cleaning machine to the temperature suitable for silk screen printing, so as to realize the continuous production. UTILITY MODEL CONTENTS

[0003] The utility model discloses a cooling device for improving glass silk screen printing efficiency and yield, which effectively solves the problem that the glass after washing by the cleaning machine must be taken down and cooled before silk screen printing.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] A cooling device for improving glass silk screen printing efficiency and yield, comprising a air supply cover arranged above a conveying roller at the end of a cleaning machine, 2-3 centrifugal fans are fixed on the air supply cover, a filter for purifying cooling air is installed at the air inlet of the centrifugal fan, the air outlet of the centrifugal fan faces downward, and a screen mesh for uniformly dispersing cooling air and uniformly cooling the glass is arranged at the air outlet of the centrifugal fan.

[0006] Further, the motor of the centrifugal fan is connected with a frequency converter.

[0007] Further, the air supply cover comprises a rectangular fixed plate and a surrounding plate arranged around the fixed plate, the centrifugal fans are arranged in a " " shape along the length direction of the fixed plate, a through hole is arranged on the fixed plate, the position of the through hole corresponds to the position of the air outlet of the centrifugal fan, supporting legs are arranged at the left and right ends of the fixed plate, and the screen mesh is arranged below the fixed plate.

[0008] Further, the centrifugal fans are two, and the power of each centrifugal fan is 0.75W.

[0009] Further, the filter efficiency of the filter is greater than or equal to 99.99%, the filter particle size is greater than or equal to 0.3 microns, and the initial resistance is less than or equal to 115 Pa.

[0010] Further, the length of the fixed plate is equivalent to the width of the cleaning machine, and the width of the fixed plate is determined according to the conveying speed of the glass, the rotating speed of the centrifugal fan and the temperature difference before and after the glass passes through the fixed plate.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are:

[0012] (1) The utility model is favorable for reducing the temperature of the glass after being washed by the cleaning machine to a temperature suitable for silk printing, so that the on-line production of the cleaning machine and the silk printing machine is realized, and the yield and production efficiency of the glass silk printing are improved.

[0013] (2) The utility model is favorable for energy saving and consumption reduction through the frequency conversion control of the centrifugal fan; is favorable for preventing dust from falling on the glass surface and avoiding the adverse effect on the quality of the glass through the setting of the filter at the air inlet of the centrifugal fan; and is favorable for dispersing the cooling air and realizing the uniform temperature reduction of the glass through the setting of the screen at the air outlet of the centrifugal fan. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the top view of the utility model.

[0015] Figure 2 is the front view of the utility model.

[0016] Figure 3 is the schematic diagram of the three-dimensional structure of the utility model.

[0017] Mark explanation: air supply cover-1; centrifugal fan-2; filter-3; screen-4; fixed plate-5; coaming-6; supporting leg-7; motor-8. DETAILED DESCRIPTION

[0018] Embodiment 1: as shown in Figure 1 and Figure 2 , the temperature reduction device for improving the efficiency and yield of glass silk printing, comprising an air supply cover 1, the air supply cover 1 is erected above the conveying roller at the end of the cleaning machine through the support. Two centrifugal fans 2 are fixed on the air supply cover 1, the air inlet of the centrifugal fan 2 is provided with a filter 3 for purifying the cooling air, through the setting of the filter 3, the dust falling on the glass surface can be prevented, the filtering efficiency of the filter 3 is ≥ 99.99%, the filtering particle size is ≥ 0.3 μm, and the initial resistance is ≤ 115 Pa. The air outlet of the centrifugal fan 2 faces downward (i.e. faces the conveying roller), and the screen 4 for uniformly dispersing the cooling air and uniformly reducing the temperature of the glass is arranged at the air outlet of the centrifugal fan 2.

[0019] As shown in Figure 1 and Figure 3As shown, the air supply cover 1 comprises a fixed plate 5 in the shape of a rectangle and a surrounding plate 6 arranged around the fixed plate 5, and two centrifugal fans 2 are arranged in a "I" shape along the length direction of the fixed plate 5. The fixed plate 5 is provided with through holes, and the positions of the through holes correspond to the positions of the air outlets of the centrifugal fans 2. The left and right ends of the fixed plate 5 are provided with supporting legs 7, and the screen 4 is arranged below the fixed plate 5. The length of the fixed plate 5 is equivalent to the width of the cleaning machine, and the width of the fixed plate 5 is determined according to the conveying speed of the glass, the rotating speed of the centrifugal fan 2 and the temperature difference of the glass before and after passing through the fixed plate 5. In this embodiment, the length of the fixed plate 5 is 2060mm, the width of the fixed plate 5 is 900mm, the vertical height of the horizontal plane where the screen 4 is located from the bottom end of the supporting leg 7 is 70mm, the length of the screen 4 is 1530mm, and the width of the screen 4 is 900mm. The temperature of the glass after being washed by the cleaning machine is 40±3℃ before passing through the fixed plate 5, and the temperature of the glass is reduced to 22±2℃ after passing through the fixed plate 5. The air volume of the centrifugal fan 2 is 48m 3 / min, the air pressure is 63mmAQ, and the power of the centrifugal fan 2 is 0.75W.

[0020] In this embodiment, the air volume of the centrifugal fan 2 only needs to be able to ensure that the temperature of the glass is reduced to about 22℃, and therefore, in order to save energy and reduce consumption, the motor 8 of the centrifugal fan 2 is connected with a frequency converter, so as to realize frequency conversion control of the centrifugal fan 2.

[0021] The working principle of the utility model is: the glass after being washed by the cleaning machine passes below the fixed plate 5 along with the conveying roller, the centrifugal fan 2 blows the purified cooling air to the glass surface on the conveying roller uniformly through the screen 4, so as to uniformly cool the glass; when the glass completely passes through the fixed plate 5, the temperature of the glass is reduced to the best temperature (22±2℃) for silk printing, and then the glass directly enters the silk printing machine to perform online silk printing. The utility model is favorable for realizing online cooling of the glass, so that the cooled glass directly enters the silk printing machine to perform online silk printing, and the yield and production efficiency of the glass silk printing are ensured. The yield of the glass silk printing is improved from 85% to more than 90%, and the production efficiency is improved by 18%.

[0022] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or replacements made by the person skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A cooling device for improving the efficiency and yield of glass screen printing, characterized in that, It includes an air supply hood mounted above the conveyor roller at the end of the cleaning machine, on which 2 to 3 centrifugal fans are fixed. The air inlet of the centrifugal fans is equipped with a filter for purifying the cooling air. The air outlet of the centrifugal fans faces downward and is equipped with a screen at the air outlet of the centrifugal fans to evenly disperse the cooling air and cool the glass evenly.

2. The cooling device for improving glass screen printing efficiency and yield according to claim 1, characterized in that, The motor of the centrifugal fan is connected to a frequency converter.

3. The cooling device for improving glass screen printing efficiency and yield according to claim 2, characterized in that, The air supply hood includes a rectangular fixed plate and surrounding panels around the fixed plate. The centrifugal fans are arranged in a straight line on the fixed plate along its length. The fixed plate has through holes, the positions of which correspond to the air outlets of the centrifugal fans. The left and right ends of the fixed plate are provided with support legs, and the screen is located below the fixed plate.

4. The cooling device for improving glass screen printing efficiency and yield according to claim 3, characterized in that, There are two centrifugal fans, each with a power of 0.75W.

5. The cooling device for improving glass screen printing efficiency and yield according to claim 4, characterized in that, The filter has a filtration efficiency of ≥99.99%, a filter particle size of ≥0.3μm, and an initial resistance of ≤115Pa.

6. The cooling device for improving glass screen printing efficiency and yield according to claim 5, characterized in that, The length of the fixing plate is approximately equal to the width of the washing machine. The width of the fixing plate is determined based on the glass conveying speed, the centrifugal fan speed, and the temperature difference of the glass before and after passing through the fixing plate.

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