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Scraper head assembly and spinneret scraping apparatus

A technology of cutter head assembly and scraper, which is applied to spinneret assemblies, textiles and papermaking, etc., can solve the problems of easy wear of the scraper 2, difficult to scrape the spinneret panel, deformation of the spinneret hole 7, etc., and achieves good scraping. the effect of removing

Pending Publication Date: 2019-09-17
WUJIANG LANGKE CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of cutter head still has certain problems of incomplete scraping during use: see the attached Image 6 As shown, since the spinneret 6 is deformed to a certain extent under the action of the high-temperature and high-pressure polyester melt, its surface microscopic state is not a plane
And due to the problem of processing accuracy, each different spinneret panel has different deformed surfaces, and the blade of the existing scraper 2 is difficult to completely fit on the surface of the spinneret panel 6, which makes it difficult for the same scraper head to be deformed at one time. All spinneret panels can be scraped to a qualified level
The way to solve this technical problem at present is to increase the scraping positive pressure between the scraper 2 and the spinneret panel 6. By increasing the pressure, the scraper 2 and the spinneret panel 6 are deformed, so that the two are more bonded, but this The method will cause the scraper 2 to be easily worn, and long-term use will cause the spinneret holes 7 on the spinneret 6 to be deformed, thereby shortening the life of the spinneret 6

Method used

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  • Scraper head assembly and spinneret scraping apparatus
  • Scraper head assembly and spinneret scraping apparatus
  • Scraper head assembly and spinneret scraping apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment one: see attached figure 1 As shown, this embodiment discloses a cutter head assembly of a spinneret panel scraper. It includes a disc-shaped knife seat 1 which is rotated and eight scrapers 2 arranged on the knife seat 1. Between the scraper 2 and the knife seat 1, the surface of the scraper 2 and the knife seat 1 is adjusted by an adjustment device 4 with an elastic member. Distance and angle, so that the blade 3 of the scraper 2 can better adhere to the surface of the spinneret panel.

[0028] Specifically, the diameter of the blade holder 1 in this embodiment is 80 mm, and the blades 3 of the scraper 2 are all straight blades 3, and the lengths of the blades 3 are all 28 mm. The scraper 2 is divided into 3 scraper groups, see attached figure 1 As shown, the scraper group A including two scrapers 2 arranged close to the axis of the knife holder 1, the scraper group B including two scrapers 2 arranged close to the avoidance scraper group A, and the scra...

Embodiment 2

[0030] Embodiment two: see attached image 3 As shown, the cutter head assembly of the present embodiment is basically the same as that of Embodiment 1, the difference is that the cutter head assembly of the present embodiment has 3 scraper groups, which are respectively composed of scrapers 2 whose lengths of 3 blades 3 are 65mm. Scraper set D, scraper set E consisting of three scrapers 2 with blades 3 each having a length of 30 mm, and scraper set F consisting of three scrapers 2 whose blades 3 each have a length of 30 mm.

[0031] When the cutter head assembly of the present embodiment is working, the rotation tracks of all the blades 3 overlap each other to form a ring-shaped scraping area 5 with a diameter of 120 mm on the spinneret panel.

Embodiment 3

[0032] Embodiment three: see attached Figure 4 As shown, the cutter head assembly of the present embodiment is basically the same as that of Embodiment 1, the difference is that the cutter head assembly of the present embodiment has two scraper groups, which are respectively composed of scrapers 2 whose blades 3 have a length of 40mm. Scraper group G, scraper group H composed of 3 scrapers 2 with blades 3 whose length is 40mm.

[0033] When the cutter head assembly of the present embodiment is working, the rotation tracks of all the blades 3 overlap each other to form a ring-shaped scraping area 5 with a diameter of 120 mm on the spinneret panel.

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Abstract

The invention discloses a scraper head assembly. The scraper head assembly comprises a scraper seat which is rotatably arranged along an axis and at least two scrapers disposed on the scraper seat, a circular or annular rotating trajectory is formed after the cutter edge of each scraper is rotated around the axis of the scraper seat, a scraping trajectory of the scraper head assembly is formed after the rotating trajectories of all the scrapers are overlapped with one another, and the outer diameter of the scraping trajectory is d; each scraper includes at least two scraper groups, each scraper group includes at least one scraper the rotating trajectories of which are the same, the rotating trajectories of every two adjacent scraper groups are at least partially overlapped with each other, and the length of the cutting edge of at least one scraper is smaller than or equal to 1 / 3d. Because the length of the cutting edges of the scrapers is small, the scrapers can better fit the surface of a spinneret in comparison with scrapers of existing length, and scrapping can be better carried out on the spinneret without damaging the spinneret.

Description

technical field [0001] The invention relates to the field of spinning equipment, in particular to a cutter head assembly and a spinneret panel scraper. Background technique [0002] In the process of chemical fiber production, polyester melt (about 300°C) is rapidly ejected from the spinneret plate with multiple spinneret holes under pressure, and then cooled into filaments under the action of cooling wind. Under the working environment of high temperature and high pressure, generally in about 24 hours, some polyester sublimates, degradation products, and dirt formed by mixing crystals of some release agents (silicone oil) will accumulate on the spinneret around the spinneret holes. After the dirt accumulates, it will slowly block the small holes on the spinneret panel, resulting in the problem that the roundness of the small holes is not enough or completely blocked. [0003] At present, there is a cutter head device of a spinneret panel scraper (patent publication number:...

Claims

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Application Information

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IPC IPC(8): D01D4/04
CPCD01D4/04
Inventor 卢思源
Owner WUJIANG LANGKE CHEM FIBER