Manufacturing method of sealing brush and sealing brush obtained by the method

A manufacturing method and sealing brush technology, which are applied in textiles, papermaking, packaging, woven fabrics, etc., can solve problems such as hindering development, complex manufacturing process of sealing brushes, and high manufacturing costs, and achieve simplified production processes, light weight, and reduced production costs Effect

Active Publication Date: 2017-10-10
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Porosity is one of the key factors determining the performance of brush seals, and the complicated manufacturing process of seal brushes is another reason hindering its development
The mechanized production of traditional sealing brushes must go through a precise wire arrangement process to reduce the interference between the brush wires, and then be manufactured through a complicated welding process, so the manufacturing cost of traditional sealing brushes is relatively high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Manufacturing method of sealing brush and sealing brush obtained by the method
  • Manufacturing method of sealing brush and sealing brush obtained by the method
  • Manufacturing method of sealing brush and sealing brush obtained by the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 (see Figure 1-4 )

[0030] The weaving yarn 1, the brush filament (six-directional yarn) 2 and the shaft yarn 3 all adopt hollow quartz fibers of 190tex; the weaving parameters are: the cross-section of the substrate is rectangular; the cross-sectional size is 10mm×6mm; the weaving yarn 1, the brush filament 2 and The fineness of the shaft yarn 3 is 190tex×2 plied, the length of the flower node is 5.0mm / piece; the braiding angle is 26°; the yarn arrangement of the substrate 4 is 11 columns×(6 rows of knitting yarns+5 rows of shaft yarns), The fabric structure is a three-dimensional six-direction structure, and the sixth-direction yarn is the brushing direction.

[0031] (1) Before weaving, the knitting yarn carrier 5 and the shaft yarn carrier 6 are arranged in rows and columns according to the shape (rectangular shape) of the seal brush cross section to form a basic array. One end of braided yarn 1 is connected with braided yarn carrier 5, and the other...

Embodiment 2

[0034] Embodiment 2 (see figure 1 , 5 、6)

[0035] The weaving yarn 1, the brush filament (five-way yarn) 2 and the shaft yarn 3 are all made of 190tex hollow quartz fiber; the weaving parameters are: the cross section of the substrate is T-shaped, which can be regarded as a combination of two rectangles, and the dimensions are 4mm× 30mm and 6mm×8mm; the fineness of weaving yarn 1, brush filament 2 and shaft yarn 3 are all 190tex×2, and the length of flower knots is 4.0mm / piece; the braiding angle is 30°; the substrate yarns are arranged in 8 columns× 4 rows of weaving yarns + 8 columns x 6 rows of weaving yarns; the fabric structure is a three-dimensional five-directional structure, and the fifth directional yarn is the brushing direction.

[0036] (1) Before weaving, the knitting yarn carrier 5 and the shaft yarn carrier 6 are arranged in rows and columns according to the shape (T shape) of the seal brush cross section to form a basic array. One end of braided yarn 1 is c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a sealing brush manufacturing method. The method is simple and easy to implement. A base plate and brush wires are integrally formed, a sealing brush can be designed and adjusted, the complicated welding process is not needed, production processes are simplified, and production cost is reduced. The sealing brush is obtained through the three-dimensional braiding technology, a three-dimensional five-direction or six-direction braided structure is adopted, and the sealing brush is directly braided with the 1*1 four-step method.

Description

technical field [0001] The invention relates to a three-dimensional weaving forming technology, in particular to a method for manufacturing a sealing brush and a sealing brush obtained by the method. Background technique [0002] Common sealing brushes are widely used in various automatic doors and windows and elevators to block dust. Aeroengines, industrial gas turbines and other turbomachinery use brush-type sealing mechanisms, and their leakage is only 1 / 5 to 1 / 10 of that of traditional grate seal brushes, which has better sealing performance. After adopting the brush seal mechanism on the engine, the thrust of the engine is increased, the fuel consumption rate and flight cost are reduced, and the efficiency is significantly improved. Because the contact surface between the brush seal mechanism and the rotating parts is composed of metal brush wires, this design makes the brush wires play the role of countless small springs, avoiding the brush wires being directly rubbed...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04C1/06D04C3/40
CPCD04C1/06D04C3/40D10B2505/06
Inventor 焦亚男陈利景媛媛李凡
Owner TIANJIN POLYTECHNIC UNIV
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