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Requirements and guidelines for fully automatic fuel injectors

2020-04-10

  Automatic fuel injection machineIt replaces the previous manual spraying work, which not only improves the work efficiency, but also saves the ugly working environment of the workers doing the spraying work. The fuel injection process can be divided into air fuel injection, high pressure airless fuel injection and electrostatic fuel injection according to the equipment classification. In the toy production process, air injection is generally used, which we often call fuel injection.

When encountering a plastic or alloy workpiece with multiple prescription positions that need to be sprayed, it may need to do multiple processes to complete the spray production. As far as the engineer is concerned, it is necessary to design multiple fuel injection procedures for this workpiece: the determination of the fuel injection mold, the number of procedures, and the smooth arrangement of the sequence. Different products are mostly different, but the proposed injection process has some common requirements and guidelines. The requirements and guidelines mainly include the following:

1. According to the number of color drawings, the hand-painting process is planned, and each color is not less than 1 process.

2. When the injection direction is less than 180∘, use a sheet mold; when the injection direction is greater than 180∘, use a clamp mold.

3﹒ The hand spraying process is planned according to the use of the fuel injection mold. When the distance between two pictures in the same process is small, additional processes should be considered to make the hand spraying mold difficult to break.

4﹒ When the cone angles of the two outer surfaces are very small and the drawing requirements are high, additional procedures should be considered to avoid scratching.

5﹒ According to the error situation of the rubber parts and the drawing requirements, the hand spraying process is drawn up. Under normal circumstances, when the plastic part's shape and position error exceeds 0.05 to 0.1 mm, the margin of the picture is not clear. If the marginal picture is required to be clear, then a more useful method should be considered to control the plastic part's shape and position error, perhaps considering the disassembly process, or perhaps changing to pad printing.

Automatic fuel injectors have brought great convenience and benefits to the spraying industry. However, no matter what the equipment is, there will always be some problems after a period of use. In order to maintain the function and service life of the fuel injector, when using There are some things to keep in mind.


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