Journal of Textile Research ›› 2018, Vol. 39 ›› Issue (12): 101-106.doi: 10.13475/j.fzxb.20171102406

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Design and experimental study on steel needle gripper of replacement of Z directional steel needles in three-dimensional fabric

  

  • Received:2017-11-14 Revised:2018-09-04 Online:2018-12-15 Published:2018-12-17

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Abstract:

In order to overcome the defect of manual replacement of steel needles and the defect of conventional gripper during the operation process, a special steel needle gripper for the replacement of steel needles was designed. The device comprises a wedge block, a thin walled elastic gripper, etc., and the pressure of the wedge block on the thin walled elastic gripper causes the elastic deformation of the thin walled elastic gripper, which is converted into a pressure on the steel needle, meeting the requirements of gripping steel needles. The special steel needle gripper has a high degree of automation and accurate positioning, and can quickly achieve gripping and relaxation. By the force analysis of the working process of the steel needle gripper, it guarantees that the replacement of steel needle is reliable and continuous. In order to verify the feasibility of the working principle, an experiment for the gripping replacement of steel needle was designed. The result shows that the steel needle gripper has feasible principle and reliable operation.

Key words: three-dimensional fabric with Z direction steel needle, steel needle gripper, force analysis, replacement experiment of steel needle

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