| 摘要 |
<p>The gathering and pleating device comprises a series of pairs of thin, elongated sheet metal pieces (15,15',16,16') that occupy the outside and the inside of a mesh tube used to make sections forming a number of bags. The pieces are placed on a frame plate (2) that supports them in symmetry with respect to a vertical middle plane and with the cooperation, of some coordinated pneumatic drive cylinders (4,4',5).</p><p>Applicable to the gathering and pleating of the mouths of the bags formed by the sections of mesh tube.
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