第2部分 模具结构 part 2 mould structure
DESCRIPTION
基本结构 Basic Structure 二板式模具 Two-plate injection mould 三板式模具 Three-plate injection mouldTRANSCRIPT
2 Part 2 Mould Structure
Basic Structure Mould Type Parting Line Feeding System Mould Grade
Basic Structure Two-plate injection mould
Three-plate injection mould Two-plate injection mould
1. sprue bush; 2. guide pin; 3. fixed mould plate; 4. core; 5.
moving mould plate; 6. moving mould support plate; 7. sleeve; 8.
stop pin; 9. spacer block; 10. core; 11. screw; 12. clamping plate
of moving mould; 13. ejector-retainer plate; 14. sprue puller pin;
15. ejector-support plate; 16. return pin Direct Gate Mould
Base
GB/T ABCD A B GB/T ABCD C D ejector retainer plate
moving mould plate guidebush cavity insert guide pin fixed mould
plate core insert ejector retainer plate ejector support plate
moving clamping plate fixed clamping plate ejector pin return pin
sprue bush 1) 2) 3) 4) 1) 2) Three-plate injection mould
1. sprue bush; 2. guide pin; 3. fixed mould clamping plate; 4.
fixed mould plate; 5. spring; 6. stop pin; 7. core; 8. moving mould
plate; 9. moving mould support plate; 10. spacer block; 11. screw;
12. return pin; 13. ejector pin; 14. clamping plate of moving
mould; 15. ejector-retainer plate; 16. ejector-support plate;
DADBDCDD DADBDCDD 1) 2) 3) 1) 2) 3) 4) Mould type Angle pin
core-pulling
Slanted lifer core-pulling Weldless plastic injection Mould with
unscrewing unit Angle pin core-pulling
1. ejector-retainer plate; 2. ejector-support plate; 3. straight
pin; 4. ejector pin; 5. back locating ring; 6. back ejector-support
plate; 7. pillar; 8,16. sprue puller pin; 9. ejector bush; 10.
location pin; 11. screw; 12. return pin; 13. guide pin; 14. guide
bush; 15. moving mould support plate; 17. core insert; 18,21.
cavity insert; 19. locating ring; 20. sprue bush; 22. fixed mould
support plate; 23. slanted slide; 24. angle pin; 25,31. wear
plate;36.wedge plate; 27. fixed mould plate; 28. slide insert;29.
cooling pipe; 30.moving mould plate;32. spacer block;33. moving
mould clamping plate Slanted lifer core-pulling
1. ejector-support plate; 2. channel frame; 3. rolling axis; 4.
ejector pin; 5. moving mould plate; 6. core; 7. slanted lifter; 8.
fixed mould plate; High light & weldless plastic injection
mould
High light & weldless part Traditional part Weldless line
Approximately conformal heating & cooling channel
Highlight shell Mould with unscrewing unit Parting line
Assure plastic part's appearance Parting line to facilitate venting
Parting line to facilitate demolding Parting line to assure plastic
part accuracy Parting line to facilitate machining Coordination
between lateral parting line and major parting line Parting line
compatible with injection moulding machine parameters Draft to
impact parting lines Feeding system gate makeup edge sprue
direct disk subsprue spoke clawed pin-point submarine makeup sprue
runner balanced radiate linear Y Y-shape X X-shape H H-shape
unbalanced single cavity Feeding system makeup
1. cold-slug well; 2. sprue; 3. runner; 4. gate; 5. plastic part;
6. vent groove Sprue 1mm 0.51mm Runner Balanced runner Radiate
unreasonable Linear Y Y-shape X X-shape HH-shape Unbalanced runner
Single cavity runner Gate Edge gate Direct gate Disk gate Subsprue
gate Spoke gate Clawed gate Pin-point gate 1. fixed mould plate; 2.
core; 3. stripper plate; 4. sprue puller pin; 5. sprue bush; 6.
fixed mould clamping plate; 7. ejector pin; 8. stop pin Submarine
pulling-break off pushing-break off Mould grade 400t 101 100 1) 2)
25HRC 3) 48HRC 4) 5) 6) 7) 8) 102 50 100 1) 2) 25HRC 3) 48HRC 4) 5)
6) 103 50 1) 2) 13.5HRC 3) 25HRC 104 10 1) 2) 3) 105 500 Mould
surface roughness
Mould surface roughness 12 (A-D) A Ra00.1mA1A2A3 B0.10.2mB1B2B3 C
0.20.8m C1C2C3 DD1D2D3