一、模型构造拉模主要由模框、端模和管芯三部分组成,见图1。用不同尺寸的模框和端模可组成不同宽度的模型,可生产各种规格的圆孔板。下面以生产500毫米宽圆孔板的拉模为例,说明它的各部构造。1.模框(图2):由两个侧模和两个卡子组成。侧模(图3)用120毫米槽钢制成。内侧贴焊一条10毫米厚的钢板。 First, the model structure The mold is mainly composed of three parts: mold frame, end mold and die. See Figure 1. Different sizes of mold frames and end molds can be used to form models of different widths. Various sizes of round hole plates can be produced. The following is an example of a drawing die for producing a 500 mm wide circular hole plate, illustrating the structure of each part thereof. 1. Frame (Fig. 2): It consists of two side molds and two clamps. The side mold (Figure 3) is made of 120 mm channel steel. A 10 mm thick steel plate is welded on the inside.