Mold design and production

(I) Die Design

1. No matter what aliensmould, the cavity is basically an empty shell. Generally speaking, the wall thickness of aluminum castings is about 10mm. During the forming operation, each production cycle is heated and cooled to each other once. This continuous expansion and contraction causes its internal stress to continuously change. Therefore, the thickness of the shell should be as thin as possible under the tolerance of strength, and as symmetrical as possible.

2. The outside of the cavity shell is a steam chamber, and the sealing of steam should be considered.

3. According to the difference of product style and thickness, the size of the steam nozzle should be considered to make the beads evenly heated, expanded and fused.

4. The entry and discharge of cooling water should be evenly cooled by the cavity shell, while the cavity (I .e. steam chamber) is not permeable. Especially the mold used on the horizontal forming machine, because the mold is opened and closed in the horizontal orientation, it is very easy to seep water.

5. Suitable mold materials and mold structure shall be adopted according to the standards of production volume and products.

6. The profile used for lost foam should consider whether the specific positions of runner and riser can be made and the surface roughness of the product, because it will directly affect the surface roughness of the casting.

(II)EPS moldmanufacturing procedures

1. According to the standards of packaged products (such as televisions, instruments, etc.) and logistics and transportation conditions, select the appropriate EPS density and calculate the buffer thickness and buffer area of the package.

2. Hand-made EPS samples according to the product design and focus standards. This sample can be cut with electric heating wire and processed or bonded with a knife.

3. Drop test can be done with hand-made packaging test products and products. Subsequently, we can specifically confirm the cushioning performance of the cushioning package.

4. Evaluate the cushioning performance and appearance of the packaged test product, and then make adjustments until the final shape is finalized, and draw the pattern of the packaged product.

5. Select the suitable molding machine according to the size and batch of packaged products. Obviously, large-scale molding machines are required for large sizes and large batches of products.

6. Wood shapes will be directly made according to the drawings or packaging samples and the characteristics of the molding machine.

7. Manufacture of aluminum film.

8. Mechanical processing, in addition to the mating surface, should minimize the amount of processing. Obviously this requires good wood molds and castings as a prerequisite.

9. The fitter assembles the mold.

10. Test the model.

11. Check the packaged product or change the mold until you agree.

the above procedures can be selected according to the specific situation, or cross-done, but the procedures are basically the same, especially after accumulating experience, it can be simplified.

(III) mold manufacturing.

products should be removed from the mold after forming, and there should be a demolding slope in the demolding orientation. When the wall height is within 100mm, the demolding slope is 1~1 30 & prime;; When the wall height is above 100mm, the demolding slope is 2~3. If there is a steam nozzle on the wall, the demolding slope shall not be less than 2.