PROBLEM TO BE SOLVED: To provide a simple extrusion molding die capable of acquiring a drain tube by easily and integrally extrusion-molding a suction tube part, a connecting tube part, and an outflow tube part.SOLUTION: Provided is an extrusion molding die 100 which includes: a cylindrical out die 110； a first in die 112 having inner-side pieces 112a to 112d movable in a radial direction； and a second in die 114 having tip-side pieces 114a to 114d movable in the radial direction. In a plan view from the tip side, an annular space 116 is formed when the inner-side pieces 112a to 112d are tightly fitted with each other, and the tip-side pieces 114a to 114d are provided so as to be in contact with the out die 110 at positions corresponding to the inner-side pieces 112a to 112d.SELECTED DRAWING: Figure 1【課題】吸引管部、連結管部及び流出管部を容易に一体に押出成形してドレーンチューブを得ることができる、簡便な押出成形用金型を提供する。【解決手段】筒状のアウトダイス１１０と、径方向に動く内側ピース１１２ａ～１１２ｄを備える第１インダイス１１２と、径方向に動く先端側ピース１１４ａ～１１４ｄを備える第２インダイス１１４と、を備え、先端側から見た正面視において、内側ピース１１２ａ～１１２ｄを互いに密着させたときに円環状の空間１１６が形成され、先端側ピース１１４ａ～１１４ｄは、内側ピース１１２ａ～１１２ｄに対応する位置にアウトダイス１１０と接するように設けられている、押出成形用金型１００。【選択図】図１
