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Drawing device for controlling heald frame of weaving machine and shed-forming component and weaving machine

A technology of stretching equipment and forming machines, applied in the direction of textiles and papermaking, textiles, heddles, etc., can solve the problems of large mass, poor accuracy of the rocker, high stress level, etc., and achieve improved dynamic performance, easy transmission, and compact structure Effect

Active Publication Date: 2008-12-24
STAUBLI FAVERGES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of structure exhibits unstable dynamic behavior due to the high mass of some moving parts and due to the high stress levels in the rocker with three branches
This leads to relatively poor accuracy in the positioning of the rocker and can lead to premature wear, especially when the loom is running at high speeds such as 800 cycles / minute
In addition, the device is relatively bulky near the rocker with three branches

Method used

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  • Drawing device for controlling heald frame of weaving machine and shed-forming component and weaving machine
  • Drawing device for controlling heald frame of weaving machine and shed-forming component and weaving machine
  • Drawing device for controlling heald frame of weaving machine and shed-forming component and weaving machine

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Embodiment Construction

[0028] The weaving machine M shown schematically in FIG. 1 comprises a plurality of heald frames placed parallel to one another, of which only one is visible in FIG. 1 , which is designated with the reference numeral 1 . The heald frame 1 is equipped with a plurality of heddles, some of which are indicated with reference numerals 11 in the figure. During weaving, each warp thread passes through the eyelets 12 of the heddles 11 along a path perpendicular to the plane of FIG. 1 .

[0029] Take advantage of the double arrow F 1 Expressed vertical rocking motion to drive each heald frame 1.

[0030] The following description along the arrow F 1 The device for moving the heald frame 1 should be clear that the devices for moving the other heald frames are similar and will not be described in detail here.

[0031] The heald frame 1 is arranged between two side frames 21 and 22 of the loom M supporting a superstructure 30 comprising an elongated beam 33 and two legs 31 and 32, wher...

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PUM

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Abstract

The invention provides a roller device (40) for controlling heald frame (1) of shuttle loom (M). The device (40) has a superstructure (30) supporting oscillating levers (41, 42). Each frame (1) is driven by two levers (43, 44) driven by a pair of oscillating levers (41, 42), which can be connected by a heddle frame (1). The lever (41) is connected to an output arm (52) of a cam mechanics (50) of a weaving shed forming machine by a connecting rod (47). The lever (42) is connected to the lever (41) by a link rod (45). The levers are pivotingly mounted with respect to the superstructure around respective geometrical axes (X1, X2) perpendicular to a displacement direction (F1) of the frame. The geometrical axe (X1) of the lever (41) is higher than the geometrical axe (X2) of the lever (42).

Description

technical field [0001] The invention relates to a drawing device for controlling the heald frames of a loom. The invention also relates to a shedding assembly comprising such a stretching device, and the invention also relates to a weaving machine equipped with such a shedding assembly. Background technique [0002] For example, from FR-A-2 680 182 or FR-A-2 846 671 it is known to place a shedding machine such as a dobby on a superstructure extending above the loom. Each heald frame is connected by two rods to a pair of rockers that move under the control of ropes connected to the dobby. [0003] In a variant, the connection between the rocker and the dobby can be provided by a rod. In this case, the rocker connected to the dobby has three branches, and the link connects the two rockers to each other. This stretching device is compact and it does not require excessive ceiling clearances for weaving, while being suitable for water jet looms as it protects the dobby from wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03C5/00D03C1/00D03C13/00
CPCD03C1/16D03C9/0683
Inventor 安德烈·菲梅约瑟夫·奇塔迪尼
Owner STAUBLI FAVERGES SA