CN2876116Y

CN2876116Y - Shaping yarn guiding tube and casing with forming cavity for feeding linear spinning material to spinning cup

Info

Publication number: CN2876116Y
Application number: CN 200520016345
Authority: CN
Inventors: V·库贝斯; J·卡普兰
Original assignee: Rieter Elitex AS
Current assignee: Rieter Elitex AS; Rieter CZ AS
Priority date: 2004-04-16
Filing date: 2005-04-15
Publication date: 2007-03-07
Anticipated expiration: 2015-04-15
Also published as: CZ14446U1

Abstract

A yarn withdrawal nozzle for an open-end rotor spinning arrangement is provided which includes a spiral-shaped surface in the yarn deflecting area which extends essentially over the entire yarn deflecting area and designed as a continuous spiral without interruptions. In addition thereto, the nozzle throat of the yarn withdrawal nozzle includes a further surface with structure downstream of the spiral-shaped surface, including rounded notches or curved humps. Both the spiral-shaped surface and the downstream structure are so designed that they are capable of transferring forces to the yarn without damaging same. The yarn withdrawal nozzle is moulded with a mould separation provided in an area downstream of the nozzle throat to facilitate assembly.

Description

Linear textile material is supplied with rotor moulding yarn-guide tube of using and the housing with forming cavity

Technical field

The technical program relates to the moulding yarn-guide tube, described moulding yarn-guide tube is used for linear textile material is controllably supplied with the rotor of the open-end spinning frame of producing component yarn, and described moulding yarn-guide tube contains at least one elbow, and at least a portion of at least one elbow is the moulding yarn-guide tube that is made of housing, and described housing has the forming cavity in the inner space that continues the other parts that enter described moulding yarn-guide tube.

The technical program relates to the housing with forming cavity in addition, described forming cavity is used to constitute at least a portion elbow of moulding yarn-guide tube, described moulding yarn-guide tube is used for controllably linear textile material is supplied with the rotor of the open-end spinning frame of producing component yarn, and forming cavity can be conditioned with continuity and enters in the inner space of other parts of described moulding yarn-guide tube.

Background technology

During producing component yarn on the open-end spinning frame, linear textile material is supplied in the rotor chamber, and described linear textile material for example is an elastomer, and described elastomer is connected with the fiber of supplying with described rotor in the mode of knowing in rotor.

Usually yarn-guide tube contains some elbows, because described elbow solves in the conserve space mode: enter the free-ended point of rotor hollow shaft and insert being connected between the point in the yarn-guide tube on the operating means of open-end spinning frame suitably, the required stable hope attrition value of correct function of elastomeric yarn spinning is provided simultaneously with making linear textile material.

The FAQs of supplying this linear textile material is: result from the wearing and tearing between the contact surface in the bending point of linear textile material and yarn-guide tube, the wearing and tearing on this surface that causes and the variation of the corresponding coefficient of waste have caused supplying with the unstability of the linear textile material in the rotor.

Used the fragment of moulding according to the solution of PV 2003-989, constructed the guiding surface that resistance to wears of linear textile material in described moulding fragment, it has the stable coefficient of waste and the high rigidity of short period.Described wear-resistant surfaces is to be made by the lip-deep cover layer of the whole functional of described fragment, or the part of described fragment is replaced by the bend pipe of compactness or interconnected some bend pipes that industrial ceramics is made.For example applying under the tectal situation of resistance to wearing of plasma spraying, be formed into removable cap in the outer part of the bending point place of yarn-guide tube elbow.This provides the high-quality spray coating to the yarn-guide tube inner surface, and described inner surface contacts with the linear textile material that moves.

Though yet these schemes have satisfied the function and the rational durability of yarn-guide tube elbow, see that from making viewpoint they are expensive, and relate to the function part of described fragment is changed in their wearing and tearing backs under service condition problem.

The purpose of the technical program is the shortcoming of eliminating in " technical background ", especially solves functional, the reliability and the durability of yarn-guide tube elbow with low cost, thereby with low cost linear textile material is supplied with in the rotor

The utility model content

The purpose of the technical program reaches like this: the one or more induction elements grooving on a kind of forming cavity of the support housing of linear textile material yarn-guide tube that is used for linear textile material, they can for example be columniform, and they are made by abrasion-resistant material, or existing appointment at least to be used for the part that contacts with linear textile material, this part is made by abrasion-resistant material.

Housing is made of plastics, and aspect the dynamic stress of its low weight on the moulding yarn-guide tube that is produced by vibrations and cost aspect is favourable.

Linear textile material is guided the induction element that limits by uniqueness with wear-resistant contact surface, make it possible to provide the line coefficient of friction of long-term stability, thereby provide the stable confession of the linear textile material that enters rotor to fail (feeding) speed, therefore guaranteed the condition steady in a long-term of high-quality weaving elastomeric yarn.

Induction element is provided with guiding groove at least on its a part of circumference, this makes and can constitute the space elbow by connecting at least two flat elbows, and do like this, make and only to use induction element and do not need the forming cavity inner surface of linear textile material and housing and the other parts contact guidance linear textile material of moulding yarn-guide tube.

But with removing method induction element is installed and has brought advantage in housing, especially described advantage has been to reduce the cost of changing induction element, has realized simple thereby is inexpensive housing reparation by means of this point.

The purpose of the technical program realizes by the housing with forming cavity that also described forming cavity is used to constitute at least a portion elbow of yarn-guide tube, and described yarn-guide tube is used for linear textile material is supplied with the rotor of the open-end spinning frame of producing component yarn.This housing provides simple replacing according to the needs of the adjustment of other braking/friction parameter of wearing and tearing or transiting wire textile material.Specifically, a kind of moulding yarn-guide tube that linear textile material supply rotor is used, and described moulding yarn-guide tube comprises at least one elbow, and at least a portion of at least one elbow is the moulding yarn-guide tube that is made of housing, described housing have continuity go into the forming cavity of inner space of other parts of rapid-result type yarn-guide tube, it is characterized in that: at least one induction element grooving on the forming cavity of housing that is used for linear textile material.

Induction element has the designated at least a portion surface that is used to contact linear textile material, and described at least a portion surface is made by abrasion-resistant material.

Induction element is made by abrasion-resistant material.

Induction element is provided with guiding groove at least on a part of circumference.

A kind of housing with forming cavity, described forming cavity is used to generate at least a portion moulding yarn-guide tube elbow, described moulding yarn-guide tube elbow is used for linear textile material is supplied with the rotor of the open-end spinning frame of producing component yarn, it is characterized in that: at least one induction element grooving on the forming cavity of housing that is used for linear textile material.

Induction element is made by abrasion-resistant material.

Each induction element is provided with guiding groove at least on a part of circumference.

Description of drawings

Embodiment according to the device of the technical program is shown among each appended figure briefly, and wherein Fig. 1 represents to have the vertical section of the housing of an induction element; Fig. 2 represents to have the vertical section of the housing of two induction elements; Fig. 3 represents to have the vertical section of the housing of four induction elements; And Fig. 4 represents to run through the cross section of the housing with induction element, and described induction element is provided with circumferential groove.

The specific embodiment

The spinning apparatus of open-end spinning frame is used for linear textile material 1 is supplied with the rotor that moulding yarn-guide tube 2 is installed, and moulding yarn-guide tube 2 comprises: enter opening 21, at least one straight line portion 22 and at least one elbow that is made of housing 23.Moulding yarn-guide tube 2 is the inlets in the into straight yarn-guide tube 3, and straight yarn-guide tube 3 freely passes the cavity of the hollow actuating shaft 4 of rotor.

Among the embodiment shown in Figure 2, housing 23 comprises forming cavity 231, the outer surface 232 of forming cavity 231 is round, inner surface 233 is provided with induction element 234, the axis projection of induction element 234 is perpendicular to the direction in linear textile material 1 path, induction element 234 hangs on by its surface and makes the direction of the linear textile material 1 supplied with and discharge be on the inner surface 233 of housing 23 and the surperficial tangent tangent line of inlet, or depend on the circumstances, be the surperficial tangent tangent line with outlets direct element 234, and do not contact the inner surface 233 of the housing 23 between the point of contact with the surperficial tangent common tangential of induction element 234.By means of this, cause only contact guidance element 234 and be directed of linear textile material 1 by induction element 234.

In an embodiment, induction element 234 is shown as the shape of straight pin, and it is favourable from the viewpoint made, can easily change, and therefore satisfy functional requirement.Significantly, the shape of induction element 234 just is not confined to the embodiment of example shown.

Fig. 1 middle shell 23 comprises an induction element 234, and it is installed in the sidewall of housing 23, and on forming cavity 231 grooving, and the part on induction element 234 surfaces constitutes the guiding surface of linear textile material 1.In Fig. 2, represent to have the embodiment of two induction elements 234, and in Fig. 3, represented to have the embodiment of four induction elements 234.

Housing 23 preferably is made of plastics, yet is apparent that, it can be made by other material, for example light-alloy of steel, non-ferrous metal etc.

Can be along whole circumference or only on its part, circumferential groove is set according to Fig. 4 induction element 234, described circumferential groove contacts with linear textile material 1.With when causing existing linear textile material 1 relative yarn-guide tube 2 parts and housing 23 location owing to the important space elbow that constitutes like this, above replaceable situation is appropriate when two or more orphans are connected directly together.

Induction element 234 is made by wear-resistant industrial ceramics, and perhaps wear-resistant cover layer is made and is provided with on the surface of induction element 234 by common material, and described cover layer can be realized by the mode of knowing, for example utilized heat treatment or chemical treatment.

Induction element 234 for example is fixedly mounted in the housing 23 by pushing.Use minimum overhang when preferably pushing, so that after their excessive wears, be easy to change induction element 234 if desired.The firm installation of induction element 234 in housing 23 can not cause and be used for being worn at their opening of housing location that this has simplified the reparation of housing 23.In addition, the wearing and tearing of the described opening in housing 23 can cause induction element 234 moving with respect to housing 23, consider the little interior diameter of yarn-guide tube 2, above-mentioned situation can cause that undesirable linear textile material 1 contacts with the inner surface of yarn-guide tube 2, or depend on the circumstances, the induction element 234 that causes axially not tightening up can break away from housing 23.

Embodiment according to the technical program causes linear textile material 1 only to contact with directing pin 234 during passing housing 23, and the rounding outer surface 232 of housing 23 has been simplified the guiding of linear textile material 1 when restarting spinning.

Especially be to reduce the purchase cost that yarn-guide tube 2 produces and the cost of housing 23 presumable reparations or replacing according to the advantage of the embodiment of the technical program, this can realize by dismantling wear-out part simply and easily being pressed into new induction element 234.Differently guide the surface of linear textile material 1, can guarantee long-time constant line coefficient of friction, enter the defeated speed of confession in the rotor and therefore stablized linear textile material 1 by several induction elements that where constitute 234.

Claims

1. one kind linear textile material supplied with the moulding yarn-guide tube that rotor is used, and described moulding yarn-guide tube comprises at least one elbow, and at least a portion of at least one elbow is the moulding yarn-guide tube that is made of housing, described housing has the forming cavity of the inner space that continues the other parts of going into described moulding yarn-guide tube, it is characterized in that: at least one induction element (234) that is used for linear textile material (1) is gone up grooving at the forming cavity (231) of housing (23).

2. moulding yarn-guide tube according to claim 1 is characterized in that: induction element (234) has the designated at least a portion surface that is used to contact linear textile material (1), and described at least a portion surface is made by abrasion-resistant material.

3. moulding yarn-guide tube according to claim 1 is characterized in that: induction element (234) is made by abrasion-resistant material.

4. according to each described moulding yarn-guide tube among aforementioned each claim 1-3, it is characterized in that: induction element (234) is provided with guiding groove (235) at least on a part of circumference.

5. housing with forming cavity, described forming cavity is used to generate at least a portion moulding yarn-guide tube elbow, described moulding yarn-guide tube elbow is used for linear textile material is supplied with the rotor of the open-end spinning frame of producing component yarn, it is characterized in that: at least one induction element (234) that is used for linear textile material (1) is gone up grooving at the forming cavity (231) of housing (23).

6. the housing with forming cavity according to claim 5 is characterized in that: induction element (234) has the designated at least a portion surface that is used to contact linear textile material (1), and described at least a portion surface is made by abrasion-resistant material.

7. the housing with forming cavity according to claim 5 is characterized in that: induction element (234) is made by abrasion-resistant material.

8. according to each described housing with forming cavity among the claim 5-7, it is characterized in that: each induction element (234) is provided with guiding groove (235) at least on a part of circumference.