Folding head and folding machine having same

Folding head and folding machine having same

  • CN 203,618,665 U
  • Filed: 06/19/2013
  • Issued: 06/04/2014
  • Est. Priority Date: 06/19/2013
  • Status: Active Grant
First Claim
Patent Images

1. a foldable head, it is characterized in that, described foldable head is cylinder barrel shaped and inwall has internal thread, and the external diameter of described foldable head is 40~

  • 60mm, the internal diameter of internal thread is 0.7~

    0.9 times of casing bore, and the pitch of described internal thread is 0.5~

    0.7 times of casing bore.

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