CN202030869U

CN202030869U - Filter screen structure

Info

Publication number: CN202030869U
Application number: CN2011200781351U
Authority: CN
Inventors: 饶瑞伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-23
Filing date: 2011-03-23
Publication date: 2011-11-09
Anticipated expiration: 2021-03-23

Abstract

The utility model provides a filter screen structure, which is a wave-shaped filter screen group formed by utilizing a plurality of wave-shaped filter screens which are folded correspondingly. The wave-shaped filter screen group is clamped and fixed in a frame body. Because the wave-shaped filter screen group is provided with a plurality of high-density wave-shaped filter pores which are formed by arranging continuous U-shaped grooves, filter area is three times larger than that of a traditional plane filter screen. Therefore, the service life of a sand cup is prolonged and wire broken is reduced.

Description

Filter structure

Technical field

The utility model relates to a kind of filter structure, and particularly a kind of have a corresponding superimposed undaform filter structure of a plurality of undaform filter screens.

Background technology

At present, chemical fibre is before silk is shaped, form the state of a liquid through polymerization, must rely on the pressure of measuring pump that liquid raw material is imported in the feed pipe, and flow to the intrinsic filtration stratum reticulare of a sand cup, impurity behind the multiple filtration net filtration, is extruded and to become superfine precursor via spinning the mouth plate.After follow-up cooling and boundling effect, batching becomes the used precursor of weaving again again.By above operation process can raw material whether pure, when extruding spinning, whether whole mouth pressure that panel bears even, all closely bound up with the precursor quality of last acquisition.

Generally speaking, existing filter screen structure, as shown in Figure 1, filter screen structure is by original two-layer screen pack 10 that improves gradually to multilayer, and with screen pack 10 combination of multilayer and be incorporated into a ring body 12, wherein screen pack 10 is the netted design in plane, comprises several filter openings 14.Make the raw material can be when flowing through screen pack 10 to peripheral diffusion profile.Because liquid material relies on the pressure of measuring pump, be imported in the feed pipe and when flowing to sand cup body in, sand cup body with spin mouth plate middle part because of bearing than pressure greatly, so the raw material of flowing through herein is comparatively even.Yet the raw material of screen pack 10 peripheries of the planar design of flowing through, the pressure inequality of bearing when flowing then, can't obtain the pressure that equates with the middle part, so the periphery of screen pack often produces carbide because of raw material is detained, this carbide very easily stops up the spinneret orifice that spins on the mouth plate, and filter effect is had a greatly reduced quality, and makes and spin the precursor that mouth plate periphery is extruded, form defective products such as filament, the silk that wafts, fracture of wire, broken silk or lousiness, and then it is very huge to influence the precursor quality.

In view of this, the utility model is satisfied the disappearance at above-mentioned prior art, proposes a kind of filter structure, effectively to overcome these above-mentioned problems.

Summary of the invention

Main purpose of the present utility model is providing a kind of filter structure, and it is the undaform screen pack that utilizes very high density, and the raw materials of chemical fibres can be evenly distributed on whole of screen pack, to reach bigger filter area and filter effect.

Another purpose of the present utility model is providing a kind of filter structure, and it is the filter screen structure that is applied in the sand cup, can make the precursor of making have preferable quality, and then reduces the chemical fibre spinning of fraction defective.

In order to achieve the above object, the utility model provides a kind of filter structure, and it comprises: a framework; And a undaform filter screen group, be located in this framework, have a plurality of filter openings that wave is arranged on this undaform filter screen group, in order to filter chemical fibre.

Described filter structure, wherein, it is wavy that this undaform filter screen is arranged as high density with continuous U type groove.

Described filter structure, wherein, this chemical fibre is Nonwovens, fibre spinning or cotton.

Described filter structure, wherein, this undaform filter screen group comprises multilayer undaform filter screen, and a plurality of filter openings aperture of each layer undaform filter screen is neither same and corresponding superimposed.

Described filter structure, wherein, the material of this undaform filter screen is a stainless steel.

The beneath specific embodiment that relies on illustrates in detail, when the effect that is easier to understand the purpose of this utility model, technology contents, characteristics and is reached.

Description of drawings

Fig. 1 is the filter screen structure figure of prior art;

Fig. 2 is a structure chart of the present utility model;

Fig. 3 is an exploded view of the present utility model;

Fig. 4 is applied to the schematic diagram of sand cup for the utility model.

Description of reference numerals: 10-screen pack; The 12-ring body; The 14-filter opening; The 16-filter structure; The 18-framework; 20-undaform filter screen group; 22-undaform filter screen; The 24-filter opening; 26-sand cup body; The 28-feed pipe; The 30-sealing ring; 32-metal sand launder; The 34-spinnerets.

The specific embodiment

See also Fig. 2 and Fig. 3, Fig. 2 is a structure chart of the present invention, and Fig. 3 is an exploded view of the present invention.Filter structure 16 comprises framework 18 and undaform filter screen group 20, has a plurality of filter openings that wave is arranged on the undaform filter screen group 20, in order to filter the raw material of chemical fibre, for example raw material spinning such as Nonwovens, fibre spinning or cotton.The whole preferable toroidal that can be of undaform filter screen group 20, comprise multilayer undaform filter screen 22, the aperture of a plurality of filter openings 24 of each undaform filter screen 22 is neither together, and it is corresponding superimposed, and the undaform filter screen group 20 that will be superimposed with multilayer undaform filter screen 22 is located in the framework 18, and wherein framework 18 is preferable can be circular framework, establishes undaform filter screen group 20 in interior and fixing in order to folder, because circular design can make the raw material of chemical fibre when filtering, and is easier to even diffusion.Moreover it is wavy that these a little undaform filter screens 22 are arranged as high density with continuous U type groove, therefore when feed stream during through the wavy undaform of high density filter screen 22, can increase about three times filter area and filter effect than the plane filter screen of prior art.Wherein, the number of plies of undaform filter screen 22 and specification are difference to some extent according to the difference of textile machine specification, and the material of undaform filter screen 22 is a stainless steel.

Please consult Fig. 4 simultaneously, filter structure 16 is installed in the sand cup body 26, and undaform filter screen 22 numbers of plies of filter structure 16 are also different variant because of spinning condition.Sand cup body comprises a feed pipe 28, sealing ring 30, metal sand launder 32 and spinnerets 34, and sealing ring 30 is between feed pipe 28 and metal sand launder 32, and sealing ring 30 centres have through hole, are connected with feed pipe 28.Filter structure 16 is located between metal sand launder 32 and the spinnerets 34.After the raw material of chemical fibre flowed into metal sand launders 32 via feed pipe 28, sealing ring 30 was in order to sealing metal sand launder 32, in order to avoid outside feed stream exposes to during metal sand launder 32.After through the metal sand that stores in the metal sand launder 32 raw material being carried out rectified action again, the filter structure 16 of flowing through, rely on continuous U type groove to be arranged as wavy these a little undaform filter screens 22 of high density and filter raw material, because filter area increases, therefore can reduce raw material is stranded in the carbonization clogging that undaform filter screen 22 peripheries are produced, and then raw material can evenly be divided on the whole undaform filter screen 22 of layout, and flow to spinnerets 34 through filter opening 24, extrude precursor by spinnerets 34, its quality is very even, with effective solution filament, silk wafts, fracture of wire, defective products such as broken silk or lousiness occur, and have greatest benefiting for the moulding of precursor.Moreover, because the increase of the filter area of filter structure 16, so also increase relatively service life, for example, the screen pack of plane design, average life cycle is three thoughtful one month, and undaform screen pack of the present utility model design, average life cycle can be extended for one and a half months to two month.Further, because raw material is 24 hours to release in feed pipe 28, to be filtered into silk, when therefore having served as the increase of screen replacing frequency, raw material relatively can slattern, and make cost high, so the utility model because of prolongation screen pack life cycle, and can effectively improve the cost problem of wastage of material.

In sum, screen pack of the present utility model designs with undaform, can make the precursor of making have preferable quality, and then reduces the chemical fibre spinning of fraction defective.In addition, the utility model has more than big filter area and filter effect, and can reduce cost of manufacture and, and then can promote the performance and the competitiveness of product integral body, have market competition advantage.

Only the above person is preferred embodiment of the present utility model only, is not to be used for limiting the scope that the utility model is implemented.So be that all equalizations of doing according to described feature of the utility model application range and spirit change or modification, all should be included in the claim of the present utility model.

Claims

1. a filter structure is characterized in that, comprising:

One framework; And

One undaform filter screen group is located in this framework, has a plurality of filter openings in order to the filtration chemical fibre that wave is arranged on this undaform filter screen group.

2. filter structure as claimed in claim 1 is characterized in that, it is wavy that this undaform filter screen is arranged as high density with continuous U type groove.

3. filter structure as claimed in claim 1 is characterized in that, this chemical fibre is Nonwovens, fibre spinning or cotton.

4. filter structure as claimed in claim 1 is characterized in that, this undaform filter screen group comprises multilayer undaform filter screen, and a plurality of filter openings aperture of each layer undaform filter screen is neither same and corresponding superimposed.

5. filter structure as claimed in claim 1 is characterized in that, the material of this undaform filter screen is a stainless steel.