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Backpack Slice Multi-position Progressive Die Design

Fixed, the pulling on the set screw for easy removal and replacement of mold adjustment. For easy to break the small punch, design a fast structure,[link widoczny dla zalogowanych], large savings in time for a small punch. 4.2 Mold design features 1) a small punch optimization design process 8 red D0.6 / l,: fLn,-J-, this punch is a small punch. Small punch instability and break easily under pressure,[link widoczny dla zalogowanych], in order to avoid possible damage, to take the following measures: (1) In order to reduce the punch of the small parts of the free length of the work,[link widoczny dla zalogowanych], using the step structure to prevent buckling under pressure. (2) In discharging board fitted with a protective cover,[link widoczny dla zalogowanych], effectively preventing the destabilization of the small punch and break under pressure. (3) taking into account the higher order volume and the mold, such as the small punch to be easy to replace worn or broken in order to improve production efficiency. Therefore the design of the small punch quick-change device (Figure 5). Practice has proved useful in this structure,[link widoczny dla zalogowanych], the replacement of small punch the process only takes 1 minute. 16 <Die Engineering NO. 8 Total 41 Figure 4 Figure 5 Layout small punch quick-change device (4) with a straight body position 2mm, taper die for the 0.5 structure, leakage of waste at the next mold base vacuum waste installed devices, both to prevent Die blocked by waste, causing a small punch break; and avoid the waste out of lead from the mouth of stamping die, the load increase and other defects. 2) Feeding correction device shown in Figure 6, when the light 4 can not be guided by the sheet 3 are: fLm-j-, optical sensor device 1 immediate feedback to the punch PLC, PLC to receive information immediately after the press slide stops, correct feeding error before normal production; such as light through the sheet metal 3 4 pilot hole on the production normal. Figure 6 Die Feeding technical correction device canthal swelling and I & P fart. c Lo Ji Figure 7Z off fine structure fine structure of Figure 8 Plastic 3) fine-tuning of bending plastic device ', f' spring angle of larger stainless steel sheet, in order to ensure the 1 ± 0.1,22. : The design of the plastic working steps 17,24. Taking into account the hardness of different incoming batch, in order to facilitate the transfer mode, respectively, the two working steps in the design of the Z fold adjustment device (plastic fine-tune the structure shown in Figure 7 and Figure Cool

. This structure proved more transfer mode saves time and improves productivity. 5 die after conclusion of the mass, the products meet drawing requirements, higher production efficiency. Mold the new structure, the mold for the future design of similar products and accumulated experience. References: 1 Wang Xiaopei. Stamping manual. Beijing: Mechanical Industry Press, 1988.2 Maxell Di. Principles of metal forming 【M】. Beijing: China Machine Press. 1995.3 WU Shi-Chun. Stamping process and die design [MI. Xi'an: Northwest Industry University Press, 2002. Designofmulti-positionprogressivedieforbackpackcontactplateWANGKe-sheng. DONGDing-fu. L1wen-sheng (HefeiUniversityofTechnology, Anhui, Hefei230009, China; YuKingIndustrialLimited, Guangdong, Shenzhen518103, China) Abstract: Thefinestampingprocessschemewasdeterminedandthecorrespondingmulti - positionprogressivediede - signwasstatedaccordingtothetechnicalrequest. Thequalityofthepartmettherequirementsofdesign. Andmean-while, introducedphotoelectricdevicewhichcouldpreventthinplatefrommiscarrying, rapidexchangedeviceofsmallerpunchandsizingdeviceforstainlesssteelthinplate. Keywords: backpackcontactplate; progressivedie; bending; sizing NO. 8 Total 41 17

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