Mechanical knot formation method of heterogenous 8-shaped knot

A figure-8 knot and special-shaped technology, which is used in the parts of bundling machinery, knotting, textiles and papermaking, etc., can solve the problem of reducing the mechanical knotting rate and stability of rope half-knots, small rope twist joint area, and easy creep. Change the pre-tension requirements and other issues to achieve the effect of increasing the hinge area, not easy to slip off, and improving reliability and stability

Inactive Publication Date: 2009-12-09
CHINA AGRI UNIV
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AI Technical Summary

Problems solved by technology

Due to the simple structure of the half-knot, the small joint area of ​​the rope twist, especially the low surface friction coefficient of the organic synthetic polymer

Method used

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  • Mechanical knot formation method of heterogenous 8-shaped knot
  • Mechanical knot formation method of heterogenous 8-shaped knot

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Embodiment Construction

[0009] The invention provides a mechanical knotting method for special-shaped figure-eight knots with complicated twist structures and knots that can be knotted by a mechanical device. It can effectively reduce the slippage of the knot under the tension state of the rope, and improve the reliability and stability of the knot.

[0010] Shaped figure 8 knots can be knotted mechanically by such as figure 2 The steps shown are completed: first, the tensioned rope is placed on the inner arc of the knotting mouth; then, the knotting mouth hooks the rope and rotates 720° to form an α-shaped rope loop surrounding the knotting mouth and a twist-shaped braid at the end , and at the same time the knotting tongue opens and bites one end of the rope, and the end of the rope bitten by the knotting tongue is released immediately; after that, the α-shaped rope loop breaks away from the knotting mouth, and at the same time the end of the rope bitten by the knotting tongue is released. The α-...

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Abstract

The invention discloses a mechanical knot formation method of a heterogenous 8-shaped knot, which belongs to the technical field of strapping. The heterogenous 8-shaped knot is formed by changing one of two X-shaped cross structures at the middle part of the standardized 8-shaped knot into Chinese doughnut-shaped twisted structure. The heterogenous 8-shaped knot is formed by the following steps: hawk-mouth-shaped knotter jaw hooks the rope to finish two circles of twisting so that one end head of the rope crosses an alpha-shaped rope ring encircling the knotter jaw, thus forming the heterogenous 8-shaped knot. The heterogenous 8-shaped knot has more complex twisting relation and increased twisting area than half-knot, thus effectively reducing slipping of buckles at the tensioning state of the rope and improving reliability and stability of buckles.

Description

technical field [0001] The invention relates to a mechanical knotting method for a special-shaped figure-eight knot, which belongs to the technical category of binding. Background technique [0002] At present, in the pasture, straw collection, and baling operations, manipulators are widely used to tie blocky objects with ropes, and olecranon-shaped knotters are generally used to tie half-knots to complete the looping of tied ropes. This knotting device has been widely used since its introduction in the 20th century. The olecranon-shaped knotter is stable for the knots of ropes with less creep such as hemp ropes, and has a high knot forming rate. Due to the simple structure of the half-knot, the small joint area of ​​the rope twist, especially the low surface friction coefficient of the organic synthetic polymer rope, sensitivity to temperature, easy creep and high requirements for pre-tension, the mechanical knot formation of the rope half-knot is reduced. rate and stabil...

Claims

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Application Information

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IPC IPC(8): D04G5/00B65B13/26
Inventor 张绍英魏文军韩鲁佳李海涛
Owner CHINA AGRI UNIV
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