Spraying liquid filtering device of spraying machine

Abstract

The utility model relates to a spraying liquid filtering device of a spraying machine, and belongs to the field of tire production equipment. A bottom backflow opening is formed in the bottom of the storage barrel, a backflow filter screen is installed in the middle of an inner cavity of the storage barrel, an upper cover plate is hinged to the two halves of a barrel opening in the upper end of the storage barrel, an upper inlet filter screen is installed on the other two halves of the barrel opening, and an upper backflow opening is formed in the position, above the backflow filter screen, of the storage barrel. A reflux pipeline is connected between the upper reflux inlet and the bottom reflux inlet, and a circulating pump is mounted on the reflux pipeline. The utility model solves the problem that the spraying pipeline is blocked due to impurities and coagulum, ensures that the interior of a tire blank is uniformly sprayed, eliminates the bad appearance of a finished tire, and improves the moving average quality of the tire.

Description

Technical Field

[0001] The utility model relates to the field of tire production equipment, and more specifically, to a spraying liquid filtering device for a spraying machine. Background Art

[0002] As is well known, internal spraying is a key process in the tire production process. Its function is to prevent the inner liner of the tire embryo from sticking to the bladder during vulcanization. The spraying quality of internal spraying directly affects the appearance quality of the finished tire. Internal spraying is atomized and evenly sprayed on the inner liner part of the tire embryo through a special nozzle. Due to impurities brought in by the spraying itself, environmental impurities entering from the inlet, and solidified impurities in the spraying itself, the nozzle is often blocked, increasing the cleaning frequency and causing the tire embryo not to be sprayed as required, increasing the quality hidden danger. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a spraying liquid filtering device for a spraying machine, which can prevent the inner liner of the tire embryo from sticking to the bladder during vulcanization and improve the appearance quality of the finished tire.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a spraying liquid filtering device for a spraying machine, provided with a storage barrel. Its characteristic is that a bottom return port is opened at the bottom of the storage barrel, a return filter screen is installed in the middle of the inner cavity of the storage barrel, the upper cover plate is hinged at one half of the barrel opening at the upper end of the storage barrel, an upper inlet filter screen is installed at the other half of the barrel opening, an upper return port is opened on the storage barrel above the return filter screen, a return pipeline is connected between the upper return port and the bottom return port, and a circulation pump is installed on the return pipeline.

[0005] The beneficial effect of the utility model is to solve the problem of blockage of the spraying pipeline caused by impurities and solidified substances, ensure uniform spraying inside the tire embryo, eliminate the poor appearance of the finished tire, and improve the dynamic balance quality of the tire. Brief Description of the Drawings

[0006] The following further describes the utility model with reference to the drawings and embodiments.

[0007] Figure 1 Structural schematic diagram of the utility model.

[0008] In the figure, 1. upper cover plate, 2. upper inlet filter screen, 3. return filter screen, 4. upper return port, 5. return pipeline, 6. bottom return port, 7. storage barrel, 8. circulation pump. Detailed Description of the Invention

[0009] In the figure, the utility model is provided with a storage barrel 7. A bottom return port 6 is opened at the bottom of the storage barrel 7. A return filter screen 3 is installed in the middle of the inner cavity of the storage barrel 7. One half of the barrel opening at the upper end of the storage barrel 7 is hinged with an upper cover plate 1, and the other half of the barrel opening is provided with an upper inlet filter screen 2. An upper return port 4 is opened on the storage barrel 7 above the return filter screen 3. A return pipeline 5 is connected between the upper return port 4 and the bottom return port 6, and a circulation pump 8 is installed on the return pipeline 5.

[0010] The upper cover plate 1 is a half-open type. Paint is poured in through the upper inlet filter screen 2 at the other half of the barrel opening, reducing the entry of environmental debris and internal debris in the paint. A bottom return port 6 is added to the lower end opening of the storage barrel 7. During use, the circulation pump 8 is started, and the paint is continuously pumped from the bottom through the return pipeline 5 into the upper return port 4 and then enters the storage barrel 7 again from the upper return port 4. A return filter screen 3 is added to the upper part of the storage barrel 7. The returned paint flows through the return filter screen 3. In this way, the solidified objects in the paint are left on the return filter screen 3. By regularly cleaning the return filter screen 3, the problem of blockage of the spraying pipeline caused by impurities and solidified substances can be solved.

Claims

1. A spraying liquid filtering device for a spraying machine, provided with a storage barrel, characterized in that, A bottom reflux port is opened at the bottom of the storage barrel. A reflux filter screen is installed in the middle of the inner cavity of the storage barrel. One-half of the barrel opening at the upper end of the storage barrel is hinged with an upper cover plate, and the other one-half of the barrel opening is equipped with an upper inlet filter screen. An upper reflux port is opened on the storage barrel above the reflux filter screen. A reflux pipeline is connected between the upper reflux port and the bottom reflux port, and a circulation pump is installed on the reflux pipeline.

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