CN101660231A

CN101660231A - Upper roller cover and fiber guide belt with nanometer granules

Info

Publication number: CN101660231A
Application number: CN200910164122A
Authority: CN
Inventors: O·戈尔茨
Original assignee: Braecker AG
Current assignee: Braecker AG
Priority date: 2008-08-07
Filing date: 2009-08-06
Publication date: 2010-03-03
Anticipated expiration: 2029-08-06
Also published as: CN101660231B; CH699296A2

Abstract

The invention relates to an upper roller cover and fiber guide belt with nanometer granules, in particular to an upper roller cover or fiber guide belt (1, 1')for a spinning device, in particular fora ring-shaped spinning machine, which has a core (5) containing plastics. A cover layer (10, 11, 12) is at least in part arranged on the core (5) and comprises one or multiple layer of nanometer oxideceramics, nanometer nitride ceramics, nanometer carbide ceramics, nanometer boride ceramics, carbon, sulphur, metal, metal alloy or their mixture. The thickness of the cover layer (10, 11, 12) is below 100 nm. The invention also discloses a method for producing the upper roller cover and fiber guide belt.

Description

Have going up of nano particle and overlap skin roller and fiber guide apron

Technical field

[0001] the present invention relates to cover skin roller (top roller covering) and fiber guide apron (fiber guide apron), wherein be provided with the coating that contains nano particle or comprise the material that contains nano particle, the invention still further relates to its production method.

Background technology

[0002] going up cover skin roller and fiber guide apron is the parts of drawing-off structure, and drawing-off structure and then constituted the pith of many spinning machine (for example, ring type spinning machine).By drawing-off, on the one hand the cross section of sliver is reduced, and make fiber orientation on the other hand, parallel and solidify subsequently.

[0003] going up cover skin roller and fiber guide apron is formed by plastics especially.For the fiber guide apron, the structure that is formed by metal also is fine.Plastics are understood to mean big molecule organic material, it is produced by the chemical conversion of the natural materials (for example cellulose or natural rubber) of height molecularization, or produces fully synthetically by the crosslinked of low molecule building block (for example ethene and styrene).The fiber guide apron that is made of leather is known equally.

[0004] available so far cover skin roller and the fiber guide apron gone up is owing to high mechanical load is the exposure formula, and according to handled material be exposed to softening agent, cotton wax, fiber residue or even from the dyestuff residue of polychrome fiber, thereby finally cause high wearing and tearing, short service life, the Frotteurism of high fluctuation and the damage of the material of handling, for example, the damage of broken string or entanglement form.Like this, traditional fiber guide apron that is formed by rubber can successfully use, and it is owing to above-mentioned load needs nursing with all strength.

Summary of the invention

[0005] the objective of the invention is to, manufacturing has high-wearing feature and stable adaptability Frotteurism and upward cover skin roller and the fiber guide apron that allows good fiber to handle and guide.

[0006] purpose utilization of the present invention has going up cover skin roller or fiber guide apron and utilizing method realization as claim 13 described in of feature defined in claim 1 and 14.Further preferred embodiment is the theme of each dependent claims.

What [0007] be used to make yarn equipment (particularly ring type spinning machine) goes up cover skin roller and fiber guide apron according to the present invention has the core that comprises plastics according to according to the present invention.Being used to produce the plastics that overlap the skin roller especially is: rubber, particularly nitrile rubber (NBR), epichlorohydrin rubber (ECO) and acrylic rubber (ACM).Polyurethane and casting type polyurethane (TPU) can be used for this purpose equally.For producd fibers guiding apron, especially can use polyurethane or rubber.The polyurethane or the used rubber that are used for producd fibers guiding apron can be arranged on the carrier that comprises plastics, simple metal or metal alloy.That is to say that the fiber guide apron can have the core that comprises plastics and the carrier (for example, braiding, woollen yarn knitting or knitting fabric) that is made of the different plastics of another kind or is made of simple metal or metal alloy.The cot layer is at least partially disposed on the core and is made of one or more layers nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, carbon, sulphur, iron, copper or their mixture.The cot layer that is made of carbon compound, sulphur compound, iron compound and copper compound or their mixture also is fine.The cot layer that is made of one or more layers nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics or their mixture is preferred.The cot layer can comprise one or more layers, that is to say, it can be single or multiple lift.The thickness of cot layer is less than 500nm.

[0008] little layer thickness provides special good binding between the cot layer of last cover skin roller or fiber guide apron and core.The cot layer has less defects, for example owing to peel off the defective that (for example because due to the mechanical load) causes.Because the existence of cot layer, thereby the performance such as TENSILE STRENGTH and ABRASION RESISTANCE assists to improve.The cot layer makes Frotteurism improve, and this is because even there is the hypermutation mechanical load, coefficient of friction also remains unchanged and be lower.The thing followed is significantly improving of yarn quality.Because the broken string of the fiber on the roller and tangle lessly, then the production process situation of interrupting significantly was less than in the past and is thereby more effective.The cot layer allows the surface property of last cover skin roller and fiber guide apron is carried out orientation control (directed control).Especially, because the existence of cot layer, thereby go up cover skin roller and fiber guide apron ABRASION RESISTANCE significantly improves.This is extremely important, and cover skin roller can to enter cover skin roller or its surperficial and impaired (for example, scratch) because line is cut off because go up.The influence that is used to handle UV radiation, ozone and other chemical substance of fiber causes the aging of cover skin roller and fiber guide apron equally.Therefore, overlap the skin roller on and have to regularly to handle again (polishing and to any surface treatment of new polished surface).Owing to according to existence of going up the cot layer on the cover skin roller of the present invention, thereby can significantly reduce this number of times of handling again, consider the quality that can not reduce yarn in this case.And, for the fiber guide apron, it is highly important that, it is when (for example being guided through immovable part, the spacer portion edge) guarantee not have the slip of jolting the time, this is owing to excellent friction state or the low-friction coefficient on the cot layer of fiber guide apron according to the present invention is achieved.

[0009] in a preferred embodiment, the thickness of cot layer is less than 100nm, preferably less than 90nm, particularly preferably less than 70nm, the most particularly preferably less than 40nm.

[0010] in a preferred embodiment, the cot layer only partly is arranged on the core.In this case, as for last cover skin roller and fiber guide apron, only there is the zone of for example bearing high mechanical load to have the cot layer.

[0011] in further preferred embodiment, the cot layer is configured to cover the Zone Full of going up on the core that overlaps skin roller and fiber guide apron according to of the present invention.As a result, coating procedure is simplified to some extent and is more effective thus.

[0012] in a preferred embodiment, the nano-oxide pottery is selected from the group of following material formation: AlO ₃, TiO ₂, TiO, ZrO ₂, SiO ₂, SiO, ZnO, MgO, BeO, Cr ₂O ₃, InO ₃, or their mixture.These nano-oxides pottery since its hardness with its with other material surface interactions process in low friction be particularly suitable for the cot layer.

[0013] in another preferred embodiment, the nano nitride pottery is selected from the group of following material formation: AlN, TiN, TiCN, Si ₃N ₄, TaN, GaN, BN, InN, CrN, or their mixture.

[0014] in a preferred embodiment, the nano-carbide pottery is selected from the group of following material formation: AlC, TiC, ZrC, Br ₄C, NbC, WC, TaC, HfC, VC, CrC, C (diamond), or their mixture.Especially, the friction that the cot layer that contains C (diamond) has highly significant reduces effect, and is stone, and very wear-resisting, and is chemically inert.(lid) layer made based on the amorphous carbon compound is also referred to as " diamond-like carbon " (DLC).

[0015] in another preferred embodiment, the nanometer boride ceramics is selected from the group of following material formation: AlB, TiB ₂, ZrB ₂, HfB ₂, or their mixture.

[0016] in the preferred embodiment of last cover skin roller or fiber guide apron, different cot layers is arranged on the outer surface region of the inner surface area of core and core.Therefore, advantageously, the cot layer with different performance can be set.For example, can on the inner surface area of the core of fiber guide apron according to the present invention, use cot layer, to avoid in the startup of system yarn equipment or beginning process, making the machine driver form significant peak stress with low-friction coefficient.On the outer surface region of the core of fiber guide apron, can use the cot layer of special resistance to chemical attack and anti stick, its allow simultaneously the fiber guide apron and on the yarn of guiding well silk between the cover skin roller.

[0017] in further preferred embodiment, the intermediate layer is at least partially disposed on according to of the present invention and goes up on the core that overlaps skin roller or fiber guide apron.Even a plurality of intermediate layers for example comprise each intermediate layer of different material, also be fine.Particularly preferably, the intermediate layer is configured to cover the Zone Full on the core that overlaps skin roller or fiber guide apron or be arranged on the surface of core.The intermediate layer comprises one or more layers nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, simple metal, metal alloy or their mixture.And the intermediate layer is different from the cot layer.That is to say that the intermediate layer comprises different materials with the cot layer.By the combination of intermediate layer and cot layer, can go up cover skin roller or according to the surface property of fiber guide apron of the present invention according to of the present invention with high level oriented approach control.

[0018] simple metal, simple metal as used herein for example, the amount of the respective metal that is comprised is at least 95%, preferably is at least 98%, and particularly preferably is at least 99%.

[0019] in further preferred embodiment, the intermediate layer comprises simple metal or metal alloy.Particularly preferred metal alloy is evanohm or nickel alloy.The intermediate layer that comprises (core of cover skin roller or fiber guide apron on being) at the bottom of chromium or evanohm are with protecting group under present case is also referred to as hard chrome.The coating with metal alloy (particularly having hard chrome and nickel alloy) of last cover skin roller or fiber guide apron can form by chemistry and electrolysis mode.Preferably, this can being set on the fiber guide apron by the intermediate layer that comprises metal or metal alloy that chemistry or electrolysis mode apply.

[0020] in another preferred embodiment, it is very little that the thickness in intermediate layer keeps, and that is to say that thickness is less than 90nm, preferably less than 70nm, particularly preferably less than 40nm.Because intermediate layer thickness is very little, thus unaffected in fact according to the yardstick of upward cover skin roller of the present invention or fiber guide apron.And intermediate layer (and cot layer) self can comprise nano particle or be made of nano particle.Nano particle is meant the bond of several or thousands of atoms or molecule.Its size is about 1 to 100 nanometer usually.Nano particle also can be nanocrystalline, that is to say, it has crystal structure.Nanocrystalline is crystalline solid, and its size is in the nanometer range, and promptly most of crystal structure is in the nano particle in the nanometer range.Because the many electrical properties and the thermal performance of nano particle depend on its size, thereby the conspicuousness of these performances and the surface property of going up cover skin roller or fiber guide apron according to the present invention can utilize accurately substance processing method to control.

[0021] a kind of production according to cover skin roller or method on of the present invention according to fiber guide apron of the present invention in (wherein, on overlap the skin roller or the fiber guide apron has the core that comprises plastics), utilize CVD (chemical vapour deposition (CVD)) method to apply the cot layer.PECVD (plasma enhanced chemical vapor deposition) method is preferred.Also can adopt sol-gel method.Because the core of going up cover skin roller or fiber guide apron according to the present invention comprises plastics or mainly comprises plastics, thereby must select the application conditions of described method in this case and make plastics can not be subjected to any cause thermal damage, that is to say that application temperature should be in below 200 ℃.The further method that can be used for applying the temperature-sensitive substrate is the auxiliary (IBAD of coating of electron beam; Ion beam assisted depositing).

[0022] at the embodiment that is used for making yarn equipment (particularly annular spinning machine) according to upward cover skin roller of the present invention or fiber guide apron, it has the core that comprises plastics, and core self or its used plastics comprise the nano particle of nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, carbon, sulphur, simple metal, metal alloy or their mixture.Also can use the nano particle that comprises carbon compound, sulphur compound or their mixture.Preferably use the nano particle of nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics or their mixture.The diameter of nano particle is less than 100nm.

[0023] preferred metal or metal alloy is: copper and iron or copper alloy, ferroalloy or their mixture.

[0024] in a preferred embodiment, the diameter of nano particle is less than 90nm, preferably less than 70nm, particularly preferably less than 40nm.

[0025] nano particle especially uses with the form of nanometer powder or handles.Nanometer powder, for example nanometer powder as used herein is understood to mean the powder of particle diameter less than 100nm.

[0026] in last cover skin roller or fiber guide apron, makes the core that comprises plastics comprise nano particle and makes cover skin roller or fiber guide apron have foregoing cot layer simultaneously also to be fine.

[0027] the 3rd embodiment that is used to make the fiber guide apron of yarn equipment has the core that comprises metal or metal alloy.The cot layer is at least partially disposed on the core, the cot layer comprises one or more layers nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, carbon, sulphur, iron, copper or their mixture, wherein, the thickness of cot layer is less than 500nm.

Description of drawings

[0028] go up cover skin roller and illustrate in greater detail as followsly according to the embodiment of fiber guide apron of the present invention shown in reference to the accompanying drawings according to of the present invention, wherein accompanying drawing is schematically simple:

[0029] Fig. 1 demonstrates the cutaway view of cover skin roller, and wherein the cot layer is configured to cover Zone Full;

[0030] Fig. 2 demonstrates the cutaway view of fiber guide apron, and wherein the cot layer is configured to cover Zone Full;

[0031] Fig. 3 demonstrates the cutaway view of cover skin roller, wherein has two kinds of different cot layers; With

[0032] Fig. 4 demonstrates the cutaway view of cover skin roller, wherein has the core and the cot layer that contain nano particle.

The specific embodiment

[0033] Fig. 1 demonstrates cover skin roller 1 to analyse and observe mode, for example is generally used for going up in the spinning machine drafting structure and overlaps the skin roller.Last cover skin roller has the roughly core that comprises plastics 5 of cylindricality.Cot layer 10 is arranged on the core 5.In the embodiment shown, cot layer 10 is configured to cover Zone Full.The structure of Zone Full makes it can have simple coating procedure.But, the topical application structure of cot layer also is fine, for example, and the position of bearing specific mechanical load on last cover skin roller.

[0034] Fig. 2 demonstrates fiber guide apron 1 ' to analyse and observe mode.Section is oval-shaped shown under present case, but it also can adopt other form, and this depends on how the fiber guide apron is directed in the drawing-off structure.Fiber guide apron 1 ' has the core 5 that comprises plastics, and cot layer 10 is arranged on the core 5 to cover Zone Full.

[0035] Fig. 3 demonstrates cover skin roller 1 in the cutaway view mode.Last cover skin roller 1 still has core 5, and core 5 has inner surface area 20 and outer surface region 25.The cot layer 11 that comprises nano particle or comprise the dispersing nanometer particle is arranged on the inner surface area 20.This cot layer 11 is applied in by coextrusion.Cot layer 12 is arranged on the outer surface region 25.In this case, cot layer 11 is different mutually with 12.In an illustrated embodiment, cot layer 11 and 12 all is configured to cover Zone Full.But, cot layer 12 also can adopt the topical application structure.

[0036] Fig. 4 demonstrates cover skin roller 1 to analyse and observe mode equally, and it has the core 5 that comprises plastics.In the embodiment shown, cot layer 10 is arranged on the core 5 covering Zone Full, and core 5 comprises the nano particle 30 that is scattered in the plastics.

Claims

1, a kind of upward cover skin roller or fiber guide apron (1 that is used to make yarn equipment, 1 '), it has the core (5) that comprises plastics, is at least partially disposed on the cot layer (10 on the described core, 11,12), described cot layer (10,11,12) nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, carbon, sulphur, iron, copper or their mixture by one or more layers constitutes, the thickness of wherein said cot layer (10,11,12) is less than 500nm.

2, cover skin roller or the fiber guide apron (1,1 ') gone up according to claim 1, the thickness of described cot layer (10,11,12) is less than 100nm, preferably less than 90nm, particularly preferably less than 70nm, the most particularly preferably less than 40nm.

3, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, described cot layer (10,11,12) only partly is arranged on the described core (5).

4, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, described cot layer (10,11,12) is configured to cover the Zone Full on the described core (5).

5, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, wherein, described nano-oxide pottery is selected from the group of following material formation: AlO ₃, TiO ₂, TiO, ZrO ₂, SiO ₂, SiO, ZnO, MgO, BeO, Cr ₂O ₃, InO ₃, or their mixture.

6, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, wherein, described nano nitride pottery is selected from the group of following material formation: AlN, TiN, TiCN, Si ₃N ₄, TaN, GaN, BN, InN, CrN, or their mixture.

7, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, wherein, described nano-carbide pottery is selected from the group of following material formation: AlC, TiC, ZrC, Br ₄C, NbC, WC, TaC, HfC, VC, CrC, C (diamond), or their mixture.

8, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, wherein, described nanometer boride ceramics is selected from the group of following material formation: AlB, TiB ₂, ZrB ₂, HfB ₂, or their mixture.

9, according to described cover skin roller or the fiber guide apron (1,1 ') gone up of aforementioned arbitrary claim, wherein, different cot layers (11,12) is arranged on the outer surface region (25) of the inner surface area (20) of described core (5) and described core (5).

10, according to described cover skin roller or the fiber guide apron (1 gone up of aforementioned arbitrary claim, 1 '), wherein, the intermediate layer is at least partially disposed on the described core (5), described intermediate layer comprises one or more layers nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, simple metal, metal alloy or their mixture, and described intermediate layer is different from described cot layer.

11, cover skin roller or the fiber guide apron (1,1 ') gone up according to claim 10, wherein, described intermediate layer comprises simple metal or metal alloy, preferably includes chromium or nickel alloy.

12, according to claim 10 or 11 described cover skin roller or the fiber guide aprons (1,1 ') gone up, wherein, the thickness in described intermediate layer is less than 90nm, preferably less than 70nm, particularly preferably less than 40nm.

13, a kind of production is according to described cover skin roller or the fiber guide apron (1 gone up of aforementioned arbitrary claim, 1 ') method, wherein said cover skin roller or the fiber guide apron (1 gone up, 1 ') has the core (5) that comprises plastics, and utilize CVD method, sol-gel method or ion beam-assisted painting method and preferably utilize the PECVD method to apply cot layer (10,11,12).

14, a kind of upward cover skin roller or fiber guide apron (1 that is used to make yarn equipment, 1 '), it has the core (5) that comprises plastics, described core (5) comprises the nano particle of nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, carbon, sulphur, metal, metal alloy or their mixture, and the diameter of wherein said nano particle is less than 100nm.

15, cover skin roller or the fiber guide apron (1,1 ') gone up according to claim 14, described metal or metal alloy is selected from the group of following material formation: copper, iron, copper alloy, ferroalloy, or their mixture.

16, according to claim 14 or 15 described cover skin roller or the fiber guide aprons (1,1 ') gone up, the diameter of described nano particle is less than 90nm, preferably less than 70nm, particularly preferably less than 40nm.

17, a kind of fiber guide apron (1 ') that is used to make yarn equipment, it has: the core (5) that comprises metal or metal alloy, be at least partially disposed on the cot layer (10,11,12) on the described core, described cot layer (10,11,12) comprise one or more layers nano-oxide pottery, nano nitride pottery, nano-carbide pottery, nanometer boride ceramics, carbon, sulphur, iron, copper or their mixture, wherein said cot layer (10,11,12) thickness is less than 500nm.