Click icon to add picture REPORT DESIGN AND MANUFACTURING PLASTIC MOULD CONTENT NOTICES about THE SHAPE oF PRODUCT DESIGN PRODUCTS FOR INJECTION INJECTION MOLD Content The shape of the product The thickness of the product circle Corner nerve Lugs protruding? hole on product? Corner exit mold? thread on products The thickness of the product Nên thiết kế thành mỏng, tạo nhiều gân tăng độ cứng Figure 1.1 The transition from part design The related disability Hìn 1.2 Common disabilities when designing the thickness mismatch warping Fg 1.4 warping the uneven thickness Remedy Figure 1.5 Comparison To correct the warping, the need to design a uniform thickness, the following is some way designed to make uniform thickness: circle Corner By about 25-60% boron corner thickness, 50% is the best Outer radius radius should equal the thickness of the product plus: R = r+ T circle Corner Figure 2.2 Dimensions Design bo corner floors Defects involving round corner Vấu lồi The thickness is less than 75% lugs protruding put the lug thickness Outer radius equal to 25% transition should put the paw thickness or by 0.04mm to reduce stress DESIGN • The taper angle of 0.5 degrees in addition to the minimum and should taper in the smallest 0.25 degrees • The lugs protruding far into the product put up extra hard team tendon increase firmly DESIGN SIZES hole on products • hole depth does not exceed times the diameter of the hole (hole not informed) • Lengths of holes evenly, without the sharp corner • Two hole distance or distance than the outer edge of the hole should equal twice the thickness or twice size measure the circumference most hole (hole smoothly) DRAFT ANGLE • Products with ribs, lugs protruding, deep groove or beveled surface, you should design towards open mold taper angle • We can rely on to design the diagram below for proper taper angle • The value depends on the angle shoulder of plastic shrinkage and height Slovak • Structural molds suitable for easy product Products with thread Lace and lace foot radius should be greater focus to avoid application productivity The last paragraph should be rounded to avoid flush lace lace and lace damaged Avoid designing steps lace