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Perceived benefits: Greater range of can sizes from single machine

Concept of a ‘ dual stroke ’ bodymaker first put forward January 2006 in response to Flexible manufacturing. Perceived benefits: Greater range of can sizes from single machine Maintain higher speed at shorter stroke. 22 ” 26 ” stroke. 22 ” 26 ” stroke.

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Perceived benefits: Greater range of can sizes from single machine

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  1. Concept of a ‘dual stroke’ bodymaker first put forward January 2006 in response to Flexible manufacturing Perceived benefits: Greater range of can sizes from single machine Maintain higher speed at shorter stroke

  2. 22” 26” stroke

  3. 22” 26” stroke

  4. 22” 26” stroke

  5. 22” 26” stroke

  6. 22” 26” stroke

  7. 22” 26” stroke Cradle assembly Slideways Support arm Discharge plate PTO assembly Rotary cup feed drive Discharge drive Push rods Ram Guards + Etc.

  8. 22” 26” stroke Spacer for dome station Spacer for stripper housing

  9. ‘A’ Effect of varying pivot point ‘A’ on stroke

  10. 396.3 mm 451.5 mm BDC 22” FDC 22” BDC 26” FDC 26” Dual stroke geometry 26” 22”

  11. Dynamic effects of dual stroke configuration 26” geometry remains as standard: Velocities & accelerations remain unchanged Short stroke geometry: Velocities & accelerations of some components increase slightly. Reaction forces comparable with standard geometry Swing lever mass increases around 12 kg

  12. Dual Stroke Swing Lever

  13. Dual Stroke Swing Lever

  14. Dual Stroke Swing Lever

  15. Capabilities Speed: 22” stroke: rated at 390 cpm 26” stroke: rated at 340 cpm Can sizes: 202, 15cl211, 56.8cl Note: Max. can height 205 mm, using 2 ring tool pack Tallest cans shoehorned in using thinner dies

  16. Cup feed is the main challenge 26” BDC position 22” BDC position Redraw cam Design considerations BDC does not correlate between stroke changes Disrupts the relationship between ram position & redraw cam zero

  17. Stripper adapter to give effective cradle length 260 mm Toolpack length 250 mm

  18. Stripper adapter spaced to give cradle length 260 mm Toolpack length 250 mm

  19. Discharge datum 22” configuration Discharge datum 22” configuration Discharge Note: longer ram only required for cans > 16oz 62mm

  20. 62 mm Effect on Trimmer

  21. Effect on Trimmer Sliding Base Trimmer Required No alteration to turret or process

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