Mold manufacturing, from design to trial, no steps can be overlooked!

Draw the mold diagram

It is required to draw according to the national mapping standards, but it is also required to combine the factory standards and the factory's customary drawing methods not stipulated by the state. Before drawing the mold assembly drawing, the process drawing should be drawn, and it should meet the requirements of the workpiece drawing and process data. Dimensions guaranteed by the next process should be marked with the words 'process dimensions' on the drawing. If no other machining is performed after molding except for removing burrs, then the process drawing is exactly the same as the workpiece drawing.

It is best to mark the workpiece number, name, material, material shrinkage rate, drawing scale, etc. below the process drawing. Usually, the process drawing is drawn on the mold assembly drawing.

1. Draw the overall structure diagram

Try to use a 1:1 scale for the assembly drawing. Start drawing from the cavity, and draw the main view and other views simultaneously.

The mold assembly drawing should include the following content:

1) Molding part structure.

2) Structure of the pouring system and venting system.

3) Parting surface and mold removal method.

4) External structure and all connecting parts, location of positioning and guiding parts.

5) Mark the cavity height dimensions (not required, depending on the needs) and the overall dimensions of the mold.

6) Auxiliary tools (part removal and demolding tools, correction tools, etc.).

7) Number all parts in order and fill in the parts list.

8) Mark technical requirements and instructions for use.

Technical requirements of the mold assembly drawing:

1) Performance requirements for certain systems of the mold. For example, assembly requirements for the ejection system and slider core-pulling structure.

2) Requirements for mold assembly process. For example, the mating gap of the parting surface after mold assembly should not be greater than 0.05mm, the parallelism requirements of the upper and lower parts of the mold, and indicate the dimensions determined by the assembly and the requirements for these dimensions.

3) Mold usage and disassembly methods.

4) Requirements for anti-oxidation treatment, mold number, engraving, marking, oil seal, and storage.

5) Requirements for mold testing and inspection.

2. Draw all part drawings

The order of drawing part drawings from the mold assembly drawing should be: inside first, then outside; complex first, then simple; forming parts first, then structural parts.