Top of the design needs to take into account various factors, the following general principles: [0 thimble arrangement pe What does it mean to be a uniform, should be arranged in the core structure of complex, difficult on the part of the mold. As slender column mold structure on the basics of the child and strengthen the tendons. The reason is that these sections in the cavity is deep, takes a lot to contribute in the top of the top of the course. Thimble outer diameter side from the core side is no less than to ensure that the mold has sufficient strength. (It) should thimble in product strength, rigidity largest part of, and should avoid acting on the thin features, in order to prevent the article top to wear a thimble ejection pe, general dome needle to mold common common dome needle, thimble without mold factory production directly to the mold parts manufacturers or shops to buy. In the selection of the thimble, thimble standard should be adopted. Non-standard thimble generally custom-made, and the price is several times the standard thimble. Ordinary dome top when the thimble is curved needle to prevent rotation of the thimble, thimble need to set a fixed end positioning structure. Two common thimble to locate structures. Do thimble fixed end positioning structure when the top surface when the thimble is pe pipe fittings, in addition to the fixed end do need anti-rotation structure, the need in the top of the thimble processing a plurality of grooves. The purpose is to prevent sliding products in the top of the process. Thimble with the length of the part I need equal pe plate, non-mating portion 0.5 avoid the need for space. For small thimble, such as diameter 2.2,2,1, with part of the length required to be equal. Universal pe toolbox _ Yantian pe_ Gary Paffett trade is supplied by Shenzhen Trade Co., Gary Trade Co., Ltd. of Shenzhen City (www.pft-trading.com) strong, credible, Shenzhen in Guangdong's plastics industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Parfitt trade into the brilliant and you work for a better future!