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2005 - PAGE 66 - 漰 Researches to molding tools of the plastics cup product Abstract This design is Researches to molding tools of the plastics cup product, it systematically introduced the process and the assemble and use of the whole set of mold of every components about plastics cup. In which, it involved injection machines choice of parameterthe process of componentsthe structural and related calculation of injection moldthe process of special manufacture and the recall and utilize of plastic and so on. During the design, it makes use of the computer to draw the part drawing and assembly drawing, and establishes the machining process card. This design , under guaranteeing the prerequisite of processing quality, as far as possible to fall the production cost to minimum at the same time raising the productivity. Keywords Mold Injection machine plastics 豸豸豸 仯豸CAD/CAM 1. 2. 3. 4. 5. 6. 7. 涨磬涨 塢塢塢塢塢塢涤塢 乤 PC PC PC PC PC PC PC 351o 3050 1-1 g/mm3 % (Mpa)PC1.191.220.50.660100 PC羫豸 XS-Z-60 38 磺40 1pp 122(Mpa) 60100(Mpa) p(Mpa) p(Mpa) D2=D1+(0.51)mm=4+0.5=4.5mm R2=R1+(12)mm=12+1=13mm D2mm D1mm R2mm R1mm 1FKpA 5000000.67X100000000X0.005X0.0045=1507.5 F(N) p(Pa) K0.340.67 A(m2) HminHmHmax 70mm133(mm)200(mm) Hmin Hm133 mm Hmax XS-Z-60180mm GB/T.12556.190P 1 2 3 塢侫 壺İ0620İ 澫 1 20.51.5mm 3 綥塢 1 2壺İ 07壨02壨02壨03嵼28帴 20060 PC 壩 塢塢 1 İ壬塣 2 İ塣 3 İ塣 4 İ塣 5 壬İ塣 3-1: 粿 LM=(1+Scp)Ls-3/40+z =(1+0.55%)X30-3/4X0.20+0.03 =30.015 0+0.03 LM=(1+Scp)Ls-3/40+z =(1+0.55%)X24-3/4X0.20+0.03 =23.98 0+0.033/4,仯 LM-(mm) Ls(mm) Scp(%) (mm) z-(mm) HM=(1+Scp)Hs-2/3 0+z =(1+0.55%)X40-2/3X0.2 0+0.03 =40.090+0.03 HM=(1+Scp)Hs-2/3 0+z =(1+0.55%)X2.5-2/3X0.2 0+0.03 =2.380+0.032/3,0.5 HM-(mm) Hs(mm) z-(mm) LM=(1+Scp)Ls+3/40-z =(1+0.55%)X26+3/4X0.20-0.03 =26.290-0.03 LM=(1+Scp)Ls+3/4 0-z =(1+0.55%)X20+3/4X0.2 0-0.03 =20.260-0.03 LM=(1+Scp)Ls+3/4 0-z =(1+0.55%)X18+3/4X0.2 0-0.03 =18.250-0.03 3/4,仯 LM(mm) z(mm) HM=(1+Scp)Hs+2/3 0-z =(1+0.55%)X1+2/3X0.2 0-0.03 =1.1360-0.03 HM=(1+Scp)Hs+2/3 0-z =(1+0.55%)X38+2/3X0.2 0-0.03 =38.340-0.03 2/3,0.5 HM(mm) Hs(mm) z(mm) 塣 塣 壨01壨04壨0522壨02壨03 3-2: M3X19 M3X14 M5X18 2 4 4GB70-85 GB70-85 GB70-85 磬 () 1 () 潫 2 3 , 3-1 滬 滬 , 3-2 壬 Q=Qc+Qb QcN Qb Qb=0.1MPaAb Ab Ab=d2=3.14262=2.12103mm Qb=0.1MPaAb=0.12.12103=2.12102N EE=3.1103 MPa =0.55% =0.37 tt=2mm lİl=38mm N Qc=PK KK=0.29 Qc=PK=1.291040.29=3.745103N Q=Qc+Qb=3.745103+2.12102=3957N : 豸 缫縯磬磬缫潫 羫 缫缫仯 0.01mm0.5mm 硱缫 0.01mm 仯 缫缫澫 塢估 似硣估顣 塢 2-218182-21-113181821191-114壨02717档 豸 飬豸 飬100% 档 羫IT8-IT9羫IT6-IT7IT7-IT8 Ra0.2-0.1mRa0.05m澫 PROGRAM EXPLANATION (Refer to Figure 12-4.) N010 This is the safety block, canceling any codes that may have been left active following a previous program. N020-N030 These blocks assign the tool information and select the tool. N040 S641-Set the spindle speed to 642 RPM. F5-Set the feedrate to 5 inches per minute. M03-Truns the spindle on clockwise. N050 G45 H01-Call up the tool offsets in register #1. N060 X0 Y0-Position the machine to the center of the part, where the subroutine starts. N070 G81-Initiates the drilling cycle. G99-Selects a return to rapid level. Z-.7-Z-axis depth for drilling. Since a G81 code will not move the Z axis until after an X, Y, or X/Y move, no movement takes place along the Z axis yet . R0-Sets the start of the buffer (Z0 with a tool offset active ) at the rapid level. M80 CTurns the coolant on. N080 P190 M98-Instruct the MCU to jump to the subroutine that starts in block 190. N090 M21 CMirror images the X axis. N100 P190 M98-Causes a jump to the subroutine. N110 M22-Mirror images the Y axis. N120 P190 M98-Causes a jump to the subroutine. N130 M23-Cancels the active mirror image commands. N140 M22-Mirror images the Y axis. It was necessary to cancel the mirror image in block N130 because the X axis was mirror imaged along with the Y. Once canceled ,an M22 is used to reestablish the mirror image on the Y axis. N150 P190 M98-Causes a jump to the subroutine. N160 G80-Cancels the drill cycle. G49-Cancels the tool offset. Z0-Retracts the spindle. M09-Turns off the coolant. N170 X-12 Y8-Coordinates of the part position. As in other word address examp