Energy-saving and environment-friendly preparation technology of control panel of washing machine

A control panel, energy saving and environmental protection technology, which is applied to the device for coating liquid on the surface, pretreatment surface, coating, etc., can solve the problems of increasing production cost, reducing work efficiency, poor finished product effect, etc. Efficiency, saving raw materials, improving the effect of spraying appearance quality

Inactive Publication Date: 2018-09-11
丹阳市逸帆电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The injection molding process in the prior art generally has complex processes and inconvenient operation, which increases the production cost of the enterprise and reduces the work efficiency
[0004] In addition, the surface paint layer of the current injection molded parts is mostly sprayed with a spray gun, and dried in an oven after spraying. This kind of process is relatively simple, and the effect of the final product is not good. After long-term use, the paint layer Easy to fall off on injection molded panels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] An energy-saving and environment-friendly preparation process for a washing machine control panel, the steps are as follows:

[0049] (1) For sol, heat the nozzle temperature of the injection molding machine to 180°C, heat the first section of the barrel to 220°C, heat the second section of the barrel to 260°C, heat the third section of the barrel to 240°C, and The fourth stage is heated to 200°C, and the sol time is 20s;

[0050] (2) Clamping, the clamping time is 1s;

[0051] (3) Injection: Inject the molten raw material into the mold through the nozzle. The injection time is 15s. The injection process is divided into eight stages: the first stage injection pressure is 55MPa, and the injection time is 0.5s; The injection pressure of the second stage is 65MPa, and the injection time is 1s; the injection pressure of the third stage is 70MPa, and the injection time is 1s; the injection pressure of the fourth stage is 75MPa, and the injection time is 2s; the injection pr...

Embodiment 2

[0066] An energy-saving and environment-friendly preparation process for a washing machine control panel, the steps are as follows:

[0067] (1) For sol, heat the temperature of the nozzle of the injection molding machine to 210°C, heat the first section of the barrel to 230°C, heat the second section of the barrel to 270°C, heat the third section of the barrel to 250°C, and put the barrel The fourth stage is heated to 215°C, and the sol time is 30s;

[0068] (2) Clamping, the clamping time is 1.5s;

[0069] (3) Injection, the raw material in molten state is injected into the mold through the nozzle, the injection time is 18s, and the injection process is divided into eight stages: the first stage injection pressure is 65MPa, and the injection time is 1s; the second stage The injection pressure is 75MPa and the injection time is 2s; the injection pressure of the third stage is 75MPa and the injection time is 2s; the injection pressure of the fourth stage is 85MPa and the inje...

Embodiment 3

[0084] An energy-saving and environment-friendly preparation process for a washing machine control panel, the steps are as follows:

[0085] (1) For sol, heat the nozzle temperature of the injection molding machine to 195°C, heat the first section of the barrel to 225°C, heat the second section of the barrel to 265°C, heat the third section of the barrel to 248°C, and The fourth stage is heated to 211°C, and the sol time is 27s;

[0086] (2) Clamping, the clamping time is 1.5s;

[0087] (3) Injection: Inject molten raw materials into the mold through the nozzle, the injection time is 17s, and the injection process is divided into eight stages: the first stage injection pressure is 55-65MPa, and the injection time is 1s; The injection pressure of the second stage is 65-75MPa, and the injection time is 2s; the injection pressure of the third stage is 70-75MPa, and the injection time is 2s; the injection pressure of the fourth stage is 75-85MPa, and the injection time is 2s; the...

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PUM

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Abstract

The invention provides an energy-saving and environment-friendly preparation technology of a control panel of a washing machine. The energy-saving and environment-friendly preparation technology comprises the following steps: (1) carrying out injection molding: preparing sol, carrying out die closing, injecting the sol, pressurizing, cooling, carrying out die opening and de-molding; after carryingout the de-molding to obtain an injection molding part; (2) carrying out paint spraying treatment: pre-treating, carrying out primary paint spraying, carrying out secondary paint spraying, carrying out primary drying, carrying out secondary drying, carrying out primary UV (Ultraviolet) curing, carrying out IR (Infrared Ray) curing, carrying out secondary UV curing, and cooling; after carrying outcooling to obtain a finished product. According to the energy-saving and environment-friendly preparation technology provided by the invention, a multi-section sol injection and injection molding method is adopted, and sol injection time and sol injection pressure are set by sections; the work is refined, raw materials can be effectively saved and the cost is reduced. All technological parametersare reasonably selected by adopting a series of technologies of paint spraying, flash drying, leveling and baking, and the steps are clear; the surface of an injection molding panel which is sprayedwith paint according to the method is smooth and bad conditions that the paint is not uniformly sprayed, the drying is not sufficient, foaming is caused and the like do not occur.

Description

technical field [0001] The invention particularly relates to an energy-saving and environment-friendly preparation process for a washing machine control panel. Background technique [0002] Injection molding, also known as injection molding, is a molding method of injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automatic operation, various designs and colors, simple to complex shapes, large to small sizes, accurate product sizes, easy replacement of products, and complex shapes. Parts, injection molding is suitable for mass production and complex shape products and other molding processing fields. [0003] Many different injection molding processes are known in the prior art. In general, injection molding must first prepare the plastic material that needs to be molded, such as plasticizing (plasticizing) the plastic, and then injecting the plasticized (plasticized) plastic into the cavity of the injection mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/76B29C45/17B05D7/00B05D3/02B05D3/06
Inventor 黄耀平
Owner 丹阳市逸帆电子有限公司
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