Flower pot mould

The mold steel materials processed by the mold parts have high hardness, which requires the mold processing equipment to have thermal stability and high reliability.

For complex cavities and multi-functional composite molds, as the shape of the part becomes more complex, the design and manufacturing level of the mold must be improved. Multiple grooves and multiple materials are formed in a set of molds or assembled into a multi-functional composite of components The mold requires a large amount of processing programming, a high-deep cavity comprehensive cutting ability and high stability, which increases the processing difficulty.
 
The machining quality of mold parts includes machining accuracy and surface quality: machining accuracy is the degree of conformity between the three geometric parameters of the actual size, shape, and position of the surface of the processed part with the ideal geometric parameters required by the drawing; the deviation of the actual geometric parameters of the part from the ideal geometric parameters The value is called machining error.
Machining accuracy and machining error are both terms to evaluate the geometric parameters of the machined surface. Machining accuracy is measured by tolerance grade, the smaller the grade value, the higher its accuracy; the processing error is expressed by a numerical value, the larger the value, the greater the error. High machining accuracy means small machining error, and vice versa; the actual parameters obtained by any machining method will not be absolutely accurate. From the perspective of the function of the part, as long as the machining error is within the tolerance range required by the part drawing, the machining is considered guaranteed Accuracy.

The quality of the machine depends on the machining quality of the parts and the assembly quality of the machine. The machining quality of the parts includes the machining accuracy and the surface quality. The machining accuracy refers to the actual geometric parameters (size, shape and position) and the ideal geometry after the machining The degree to which the parameters match. The difference between them is called machining error. The size of the machining error reflects the level of machining accuracy. The greater the error, the lower the machining accuracy, and the smaller the error, the higher the machining accuracy; the main aspects that affect the machining accuracy: dimensional accuracy, the degree of conformity between the actual size of the processed part and the center of the tolerance zone of the part size.

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1. Cavity layout. Determine the number of cavities and their arrangement according to the geometric structure characteristics of the plastic parts, dimensional accuracy requirements, batch size, mold manufacturing difficulty, mold cost, etc.

2. Determine the parting surface. The position of the Plastic furniture mould parting surface should be conducive to mold processing, venting, demolding and molding operations, and the surface quality of plastic parts.

3. Determine the pouring system (the shape, location and size of the main runner, sub-runner and gate) and exhaust system (exhaust method, exhaust slot location, size).

4. Select the ejection method (ejector, pipe, push plate, combined ejector), determine the undercut treatment method and core pulling method.

5. Determine the cooling and heating method, the shape and location of the heating and cooling groove, and the installation location of the heating element.

6. According to mold material, strength calculation or empirical data, determine the thickness and dimensions of mold parts, shape structure and all connections, positioning, and guide positions.

7. Determine the structural form of the main forming parts and structural parts.

8. Consider the strength of each part of the mold and calculate the working size of the molded part.

If these problems are solved, the structure of the mold will naturally be solved. At this time, you should start to draw the mold structure sketch to prepare for the formal drawing.

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