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Airless spraying system and method of inner wall of program-controlled automatic cast pipe

An airless spraying and automatic spraying technology, which is applied in coatings, devices for coating liquid on surfaces, and pre-treated surfaces, etc., can solve problems such as poor economic benefits, low efficiency, and poor product quality, and achieve the goal of improving work efficiency Effect

Active Publication Date: 2011-11-23
绛县恒通铸造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of this invention is to solve the technical difficulties of poor product quality, low efficiency and poor economic benefits in the existing methods, and to provide a program-controlled automation that produces cast iron pipes with good quality, high product yield and good economic benefits Airless spraying system and method for inner wall of cast pipe

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  • Airless spraying system and method of inner wall of program-controlled automatic cast pipe
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  • Airless spraying system and method of inner wall of program-controlled automatic cast pipe

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 with figure 2 As shown, the program-controlled automatic cast pipe inner wall airless spraying system in this embodiment includes an air compressor (09-50A) and an air cleaner, wherein: it also includes a pneumatic high-pressure plunger pump (phoehix6552), a pneumatic agitator, High-pressure filter, high-pressure paint delivery pipe, high-pressure paint regulator (HR-400) and automatic spraying machine, air compressor connected to the air inlet of the air purifier, air outlet of the air purifier connected to the inlet of the pneumatic high-pressure plunger pump The air port, the air inlet of the pneumatic agitator are connected with the air inlet of the electromagnetic switch on the automatic spraying machine, the feed port of the pneumatic high-pressure plunger pump is connected with the pneumatic agitator, and the d...

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Abstract

The invention relates to airless spraying system and method of inner wall of a program-controlled automatic cast pipe, belonging to automatic spraying system and method for spraying the inner surface of a centrifugal cast iron drain pipe. The invention mainly solves the technical difficult problems of weak product quality, low efficiency and poor economic benefit in the prior method. The airless spraying system of the inner wall of the program-controlled automatic cast pipe comprises an air compressor, an air purifier, a pneumatic high-pressure plunger pump, a pneumatic stirrer, a high-pressure filter, a high-pressure paint conveying pipe, a high-pressure paint pressure regulator and an automatic spraying machine; the airless spraying method comprises the following steps of: a. heating the cast pipe in a preheating furnace to reach 100-150 DEG C firstly; b. preparing paint; c. powering on the air compressor, regulating the gas transmission pressure of the pneumatic high-pressure plunger pump to 1-4.5Kg / cm2, then regulating the spraying pressure to 30-230Kg / cm2, and compiling servo motor control programs according to the diameter size of an inner hole of the cast pipe, namely, starting paint-suction spraying.

Description

technical field [0001] The invention relates to a program-controlled automatic airless spraying system and method for the inner wall of a cast pipe, which belongs to an automatic spraying system and method for spraying the inner surface of a centrifugal cast iron drainage pipe. Background technique [0002] Centrifugal casting pipes have been widely used all over the world, but with the expansion of applications, the quality requirements for the inner surface coating of centrifugal casting pipes are also increasing. Using the existing spraying method, that is, painting while rotating the workpiece, not only the technology is backward, the efficiency is low, but the quality cannot meet the requirements, which limits the development of the product. Especially after this method is sprayed on the inner hole, it is easy to produce defects such as severe eccentricity of the paint film, uneven ends, bubbles on the inner surface, and sagging, which seriously affect the yield of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C7/02B05C11/10B05C21/00B05D3/02
Inventor 赵金有
Owner 绛县恒通铸造有限公司