Plastic moulds, rounding

1. Start with spring section: generally speaking, there are square and merry go round, round me, because how long how long it would take that kind of cut. Grade 3 or 4 grade boss know best how to save cost, today to talk about design benchmark is not suitable for.
2. The spring to first understand the basic specifications: freedom, long long compaction, load and maximum compression spring rate. (this is for mould design, agencies have other considerations, but also very much the same).
3. Red, blue and yellow various load difference, no longer say more look-up table, please. I want to say is the spring compression ratio, the characteristics of the spring is as long as the actuator stroke more than elastic limit, the life is a sharp decline, speak only blue, his spring compression rate of 40%, if the design of the spring compression ratio less than 40% (35% give a safety factor), hang up soon.
4. Everyone at the top of the design of the plate spring have considering to stop travel restrictions, have given to a modest increase in the thickness of the template, you consider how much to the top plate spring from the parting surface, strength and bite (ENGAGE) how long the appropriate return pin.
For the above mentioned some good is almost the actual experience, for a beginner is a bit "zhang two Jin Gangmo is not the end", and mold the fitness really city more read more contact with the site, so the accumulation of experience can truly become a master, because... Mould is very and love and hate and afraid of being hurt, really hit no predecessors or friends to help, just want to commit suicide, below is my personal experience in the design process, feel good can be for reference, please comment: when bad
Mold design (or review) with customers
1 part material (ABS.. PC.. POM...)
2. The shrinkage
3. The mold cavity number
4. The mould structure is solid (slider, oblique pin....)
5. Whether mold steel and heat treatment (NAK - 80.. SKD - 61.. P20.......)
6. Make mould standard (DME.. HASCO.. FUTABA.. homemade......).
7. Any mirrors
8. If there is easily damaged parts
9. The tolerance requirements
10. Feed way
11. The temperature control method
12. The machine has unlimited size
13. The mold delivery, and cost requirements
14. Can mold parts to standard parts replacement
15. The presence of auxiliary institutions (hydraulic. Air pressure, temperature sensors...).
16. The presence of the accessory parts (such as embedded injection parts)
# 17. Acupuncture point position