CN101517139B

CN101517139B - yarn detector

Info

Publication number: CN101517139B
Application number: CN200680055033.XA
Authority: CN
Inventors: R·考夫曼; M·米克斯纳
Original assignee: Memminger IRO GmbH
Current assignee: Memminger IRO GmbH
Priority date: 2006-06-21
Filing date: 2006-06-21
Publication date: 2013-01-02
Anticipated expiration: 2026-06-21
Also published as: TWI338730B; WO2007147423A1; EP2029802A1; TW200806837A; EP2029802B1; CN101517139A

Abstract

The invention relates to a yarn tension regulator, which can be used independently and as a component of other devices (5) such as a yarn feeding device. The yarn tensile regulator has a movably supported yarn detector (29) which is tightly attached to a yarn (15) and moves according to the tension or verticality. The yarn detector (29) is fixed with a transmitting element (43) jointly acting with a sensor element (44). The sensor element (44) is arranged inside a closed shell (9) or serves as one part of the closed shell (9). The yarn detector (29) can be supported on the closed shell (9), wherein a supporting device is arranged outside an inner cavity (18) of the shell and is not communicated with the inner cavity. Functional continuity is ensured by the non-contact mutual action between the transmitting element (43) and the sensor element (44) and a shell wall (36) between the two elements.

Description

Yarn detector

The present invention relates to a kind of textile technology device, for example as yarn feeding device, it is used for, and for example braiding machine, knitting machine, loom or the other machines of accepting yarn provide yarn to textile machinery.

At textile technology field, the problem that occurs for a long time and again and again is the monitoring Yarn break.Yarn break monitoring can comprise the detection of yarn tension, only is confined to perhaps measure what whether yarn exists or the yarn operation is stretched tight that tension still surpasses to a certain degree sagging.Use so-called yarn detector, it for example for example exists as the part of yarn feeding device as independent unit or device or as other textile technology devices for this reason.

For example DE 84 29 344 U1 disclose a kind of yarn defect detector that supports pivotally the double-arm lever mode.A lever arm carries guide eye at its end, and the yarn that monitor passes from it.Another lever arm carries permanent magnet at its end, for it distributes the protection tube contact-making switch.If lever arm outwards turns round from the protection tube contact-making switch, disconnect so its contact and interrupt circuit.If lever arm is to protection tube contact-making switch revolution, this switch closure and connect circuit so.The yarn effect that the revolution of lever arm is passed by the guide eye from the lever arm other end.Lever arm and protection tube contact-making switch are arranged on the inside of a shell, and this shell is the locking device of in-built yarn defect detector in addition.Locking device has one and passes the outwardly directed pivoted lever in shell gap.Dust enters enclosure from this shell gap, can cause functional failure for a long time.

DE 32 24 960 A1 disclose the another kind of device that is used for the Yarn break monitoring.This device comprises the pivotally lever of supporting, and it can be by yarn movement.Be connected two other with this lever and carry lever for the permanent magnet of pilot protection pipe contact.Connect one or another contact according to the outside rotating direction of lever, direction of rotation that thus can switching motor.

DE 42 066 07 A1 disclose a kind of yarn feeding device, have by electric motor driven yarn feeding rotating cylinder.This installs existing yarn break sensor, and yarn tension sensor is also arranged.But yarn break sensor is comprised of the lever of a pivoting support, and it is installed in the outside of crust of the device.Lever supporting is on outer shell passage and reverse installation magnet in the enclosure.This magnet affects the protection tube contact again.

For monitoring yarn tension uses the elasticity tubule, the helical spring that namely twines in the horn mouth mode, it utilizes an end to be fixed on the rotating disk.This rotating disk is by passing shell and supporting with the coefficient axle of sensor in the enclosure.

Outer shell passage can make dust enter in the shell for a long time.

Setting out thus the object of the invention is to, and a kind of textile technology device that is improved in this regard is provided.

This purpose utilizes a kind of textile technology device to be achieved, and its yarn detector is installed in the outside of device inner chamber and is supported movingly.The sensing device of monitoring yarn detector position is comprised of interactional at least one transmitting element and at least one sensing element.Transmitting element is connected with yarn detector, and sensing element then is arranged on the inside of shell.Transmitting element can be considered as reporting the signal sending element of its position.Sensing element can be considered as the detecting element of detection signal transmitting element position.

Yarn detector and transmitting element are arranged on the outside of shell, and shell therefore can be totally-enclosed.Therefore prevent from bringing the fine hair of very large problem to enter in dust and other situations.Therefore can effectively avoid restriction, contact difficulty, contact site pollution and switch element to the yarn detector freedom of motion locked.Can change yarn detector in addition, and need not to open this device.The supporting arrangement of yarn detector is arranged on the outside of shell inner cavity.Form so a kind of simple apparatus structure with being convenient to install.Reach generally the height reliability of device.

The device of introducing thus can be an independent yarn detector, perhaps also can be that other devices are for example as the part of yarn feeding device.It can be the device for detection of yarn tension, perhaps also can only be the device for detection of the existence of yarn, for example as yarn break sensor.Under preferred performance, the present invention is being used for the inspection amount or is being used for also checking that the yarn feeding device of tension force yarn feeding uses.At first alleged device is also referred to as active thread wheel.They have the carrier that for example is made of shell, have on the one end be used to the fixture that is fixed on the braiding machine for example.Carrier or shell are passed by the axle of rotatable supporting, this axle or drive by motor or by belt pulley.The thread wheel that fixing yarn by feeding twines on the lower end of axle.Rotation delivered yarn by thread wheel.Front and/or back at thread wheel arrange yarn detector, and it for example can have the swingably lever of supporting.For example, lever is carried on the yarn by its deadweight.For lever is loaded to yarn, can have the miscellaneous part such as counterweight, spring etc.

Thread wheel preferably can take off and therefore replaceably maintenance from its axle.Can use thus the thread wheel of different axial heights.The yarn detector of in this case, advantageously monitoring the yarn of being derived by thread wheel is consisted of adjustably.For example, the whole device that is comprised of yarn detector, sensing device and transmitting element can be arranged on the shell of yarn detector with vertically adjusting.Can also there be yarn outlet hole on this unit, in order to adjust simultaneously the angle that yarn leaves thread wheel with the adjustment motion.

In the simplest situation, sensing device is a kind of conversion equipment, its monitoring yarn detector be in the conversion limit top or below.Yarn detector supports transmitting element for this reason.It is that a kind of position can be by the element of being monitored by sensing element from shell inner cavity, and transmitting element then is arranged on the outside of shell inner cavity.

Shell for example is comprised of nonmagnetic substance.This material can be that plastics also can be by the position of magnetic field or electromagnetic field monitoring yarn detector especially.Non magnetic formation just can be enough on sensing element and the interactional position of transmitting element fully for shell for this reason.But shell preferably on the whole by nonmagnetic substance for example plastics form.

Visiting the yarn element preferably is bearing on the supporting arrangement that allows the oscillating motion of spy yarn element.This supporting arrangement is arranged on the outside of shell inner cavity.It for example can be made of the support holes of the blind hole form on the shell wall or be made of the support holes of passing the shell lug boss, and is not connected with the inner chamber of shell.One section that preferably visits the yarn element can be moved in support holes with a gap.Help like this supporting of brisk operation, its not vulnerable to pollution impact.But particularly dirt particle can not enter shell inner cavity by support holes.

Spy yarn element preferably carries transmitting element or this is as transmitting element.Transmitting element for example can be permanent magnet, for example ferrite or metallic ferromagnetic soft magnetic part or other metalworks.Permanent magnet can be used for be handled the switch that be arranged in the shell inner cavity, for example protection tube contact or electronic switch or with the electronic position sensor acting in conjunction.Replacement is installed in magnet and visits on the yarn element, also can be as by the agency of be such, and spy yarn element itself is made of magnet.For example can line magnetization that visit yarn element lever will be formed.Magnet can be to be fixed on also being arranged on the shell to visit irrelevantly on the yarn element to be comprised of plastic material with it also.For example have with the elastomer of magnetic fillers packing material for this reason and can buy in market, it for example adopts the processing of plastic pressure injection moulding or provides as rubber strip, utilizes simple cutter cutting when needing.

The transmitting element of soft magnetism is used for changing magnetic field, and wherein, changes of magnetic field is by the sensing element senses that is arranged in the shell inner cavity.For example, soft magnetic part can affect the magnetic flux that passes protection tube contact (Schutzrohrkontakt).Sensing element is that a kind of the detection in other situations is the element of the variation of static magnetic field in these cases.But also can utilize the work of magnetic polarity field.For example, thus can be at transmitting element internal induction eddy current, its degree and/or the reaction of sensing element is depended on the position of yarn detector.Therefore can have very small and light transmitting element, for example with the form of metal plastic spare or with the form of aluminum component.

Other details of the advantageous embodiment of tool of the present invention are the content of accompanying drawing, explanation or claims.

Accompanying drawing illustrates embodiments of the invention.Wherein:

Fig. 1 illustrates the schematic diagram of braiding machine and yarn feeding device;

Fig. 2 illustrates the simplified perspective view of yarn feeding device and yarn detector;

Fig. 3 illustrates the schematic side diagram of Fig. 2 yarn feeding device;

Fig. 4 illustrates the horizontal sectional drawing of a kind of embodiment of yarn detector;

Fig. 5 illustrates the sectional elevation figure of the different embodiments of yarn detector;

Fig. 6 illustrates the cross sectional representation of the yarn detector that is similar to Fig. 4;

Fig. 7 illustrates the cross-sectional view of the yarn detector that is similar to Fig. 5;

Fig. 8 illustrates the perspective cross-sectional view of another embodiment of yarn detector;

Fig. 9 illustrates yarn detector, and another can select the horizontal profilograph of embodiment;

Figure 10 illustrates the protection tube contact with transfer point;

Figure 11 illustrates the of the present invention a kind of different embodiments that are similar to Fig. 2; And

Figure 12 illustrates the different embodiments of another kind of the present invention that are similar to Fig. 2.

Fig. 1 illustrates a kind of circular knitter 1, and it comprises the knit fabric tube 2 with a large amount of knitting needles not shown further.These knitting needles determine to be transferred the knitting position 3,4 (and other knitting positions) of yarn.Use yarn feeding device 5,6,7 etc., they are in above the machine ring (Maschinenring) 8 that remains on above the knit fabric tube 2 and from the radially extension of this machine ring with leaving for this reason.Preferably structure is identical each other for yarn feeding device 5,6,7 etc.Fig. 2 illustrates exemplary version by yarn feeding device 5.Each yarn feeding device has shell 9, the axle 10 (referring to Fig. 3) that it for example is made of plastics and basically vertically arranges when wherein rotatable supporting is used.At least one belt pulley 11 is supported in the upper end of axle, and odontoid belt that Fig. 1 schematically illustrates 12 is by this belt pulley operation, and it drives all or several at least yarn feeding device jointly.Odontoid belt 12 is for example driven by the center drive 13 of a motor form.Replacement drives by odontoid belt 12, also can be with having drive motors on each yarn feeding device 5,6,7.

Yarn feeding device 5 has thread wheel 14 in the lower end of axle 10, its as shown in Figure 3, during use by yarn 15 multiple windings.Rotation by thread wheel 14 offers circular knitter 1 with yarn 15.

Shell 9 preferably is comprised of plastics.As shown in Figure 2, shell can be double-decker and therefore have a upper housing department 16 and a lower casing section 17.In addition, consist of a retaining clip on the shell 9.Housing department 16,17 is around inner chamber 18, and its through hole that has on sidewall by shell 9 in Fig. 3 19 can be seen out.

Can have other devices on the shell 9, for example as yarn feeding eye 20, catch knot device 21, Yarn Brake 22, another yarn feeding eye 23, yarn outlet hole 24 and signal lamp 25.The arranging of these elements can be followed normal mode and for example be carried out according to DE 42 40 628 C2.

With before the thread wheel 14 and yarn afterwards by relevant, the yarn detector that can have yarn feeding detector 26 and yarn detector 27 forms.Yarn feeding detector 26 and yarn detector 27 be used for to differentiate separately whether yarn exists and excessive sag not, and produce the corresponding signal of telecommunication by it.Two yarn detectors have a

lever

28,29 that for example is made of the line bow for this reason separately, its can single armed or as shown in the figure both arms consist of.For example it consists of according to each free U-shaped line bow of Fig. 2, and the

pivoted arm

30,31 of the best straight line in its underpart rests on the yarn 15.

Lever

28,29 or its

pivoted arm

30,31 therefore one of each self-forming be bearing in movingly spy yarn element on the shell 9.The below introduces movable supporting by yarn detector 27.Same explanation correspondingly is applicable to yarn feeding detector 26, and wherein, on concrete size, namely

lever

28 or 29 arm lengths are aspect weight and arranging on shell 9, as having difference from seeing Fig. 2 and 3.

Lever 29 has respectively end 34,35 on two arm 32,33, they and pivoted arm 31 almost bend opposite to each other abreast and be used for making lever 29 be bearing in swingably shell 9.Shell 9 for example for this reason as shown in Figure 4, two each other for example

parallel sidewall

36,37 have support holes 38,39.These support holes preferably are made of blind hole, are namely sealed by the bottom surface.Therefore

end

34,35 has to be in gap also can make levers 29 without the swinging mountings that rub in the

support holes

38,39.

Lever 29 is in the present embodiment with permanent magnet 40, and it as can see from Figure 3.As shown in Figure 4, permanent magnet 40 can be held by carrier 41, itself and arm 32, one of 33 or be connected with two arms 32,33 as shown in the figure.Permanent magnet 40 produces magnetic fields, and it penetrates the closed bottom 42 that is comprised of plastics of shell 9.It is formed for handling the 43 1 kinds of distinctive embodiments of transmitting element that are arranged on the sensing element 44 in shell 9 inner chambers 18.But sensing element 44 forms by the protection tube contact 45 (" reed contact " or " anchor relay ") that magnetic is handled in the present embodiment.Transmitting element 43 and sensing device 46 for detection of lever 29 positions of sensing element 44 common formation.Position probing is carried out in this meaning at this, namely differentiate at least lever 29 together with its pivoted arm 31 be in the top of transfer point or below.

Figure 10 illustrates separately a kind of for example protection tube contact 45 of embodiment.It has the glass tube 47 that seals on the two ends.The there incorporates contact tongue 48,49,50, and they are roughly relative at the center of glass tube.At this, contact tongue 48,50 end are close to (namely their form " back contact ") mutually, and have gap (namely their form " moving together contact ") between the contact tongue 49,50 end.Contact tongue 48 is nonmagnetic, and contact tongue 49,50 then is soft magnetism.Enough strong magnetic field so contact tongue 49,50 attract and are close to each other, and contact tongue 48,50 then separately.

The operation principle of the yarn feeding device 5 of introducing thus is as follows:

Thread wheel 14 is transported to circular knitter 1 with the rotation of the speed predesignated and at this with yarn 15 during operation.Yarn 15 is being tightened between yarn feeding eye 23 and the thread wheel 14 and between thread wheel 14 and the yarn eye 24 basically at this.The pivoted arm 30 of yarn feeding detector 26 and the pivoted arm 31 of yarn detector 27 rest on the yarn 15, and two

levers

28,29 keep thereon on the swing position separately thus.Permanent magnet 40 is therefore closely below shell 9 bottoms 42.Protection tube contact 45 conversion is impelled in the magnetic field of permanent magnet, thereby comprises contact tongue 49,50 closing of circuit, comprises that contact tongue 48,50 circuit then disconnect.If signal lamp 25 for example triggers by contact tongue 48,50, it is not shinny so.

If this degree of yarn tension descends, if lever 29 is sunk or yarn 15 fractures, lever 29 free-fallings, it occupies the position shown in Fig. 3 dotted line so.Permanent magnet 40 meanwhile 42 leaves from the bottom, makes 45 conversions of protection tube contact.Circuit passes through contact tongue 48,50 closures now, thereby signal lamp 25 can light.Sort circuit can be fed by the contact pilotage 51 that is located on the geometrical clamp 18, the signal cable that exists to connect the there.

Yarn feeding detector 26 is worked in the corresponding way.

When yarn feeding detector 26 and yarn detector 27 described as single-arm lever, namely as the lever that only leaves in one direction extension from given axis of rotation, they also can be used as double-arm lever and consist of.In this case, if

lever

29 or 28 to lower swing, can make magnet near the magnet-sensitive switch of shell 9 interior existence according to plain mode.This preferably adopts the protection tube contact to carry out, and it only has a moving together contact, namely has two contact tongues for example as contact tongue 49,50, they in the situation that on this contact magnetic field intensity increase closed circuit.

As shown in Figure 5, lever 29 supporting arrangements of yarn detector 27 also can differently consist of.For example, 42 consist of a lug boss 52 in the bottom, and then it hold one or more end of rectangular formation particularly of the arm of lever 29.Lug boss 52 have for this reason hole 52 ', it can consist of by through hole or as the hole of groove at side surface.Can latchingly insert or insert the associated end of lever 29 in this hole.This is a kind of matched in clearance, thereby lever 29 can easily turn round.

Fig. 6 illustrates a kind of different embodiment.This embodiment is basically take the embodiment of Fig. 3 and 4 as the basis, thereby correspondingly consults above-mentioned explanation.But different is, is preferably in to have permanent magnet above the protection tube contact 45 nearby its excitation protection tube contact 45 and therefore closing contact tongue 49,50.Has opposite polarity magnet on the carrier 41, in the situation that it near protection tube contact 45, weakens the magnetic field of its effect and therefore causes contact tongue 49,50 to disconnect.Therefore can realize when lever 29 is in upper position protection tube contact 45 do not have electric current by with closing of circuit when lever is in lower position.

Fig. 7 illustrates a kind of embodiment of sensing device 46, and it is take the embodiment of Fig. 5 as the basis.Different from it is that replacement protection tube contact 45 is provided with band magneto sensor for example magnetoresistance resistance (Wiederstand) or Hall element 53 or other circuit to the magnetic-field-sensitive element as sensing element.It can be installed on the printed circuit board, originally just has a this printed circuit board if the inner chamber of shell 9 18 is interior.

Fig. 8 illustrates another embodiment.In this embodiment, lever 29 is made of double-arm lever.Determine axis of rotation 54 by the supporting arrangement that lug boss 52 forms, visit yarn lever 29 from it to downward-extension.The arm 55 of visiting the yarn lever extends in the reverse direction, for example in the side of shell 9 sidewalls 36 process.In the inner chamber 18, also have protection tube contact 45 near the sidewall, its next door has the two the magnetic conductance element 57 of connection of permanent magnet 56 and yoke plate form.Scatter in the space from the magnetic field of permanent magnet 57s and to be not sufficient to pilot protection pipe contact 45.If but arm 55 enters a swing position, it can be with the magnetic flux guiding protection tube contact 45 of permanent magnet 57 on this position, and the magnetic field on the protection tube contact 55 strengthens so.Particularly at arm 55 by soft magnetic materials, for example in iron material or other ferromagnetic materials situation about forming so.

Resolution between the different swing position here also non-contact type carry out, wherein, sensing device 46 has as the arm 55 of transmitting element with as protection tube contact 45, yoke plate 57 and the permanent magnet 56 of sensing element.But also can use the electronics detector for magnetic field as sensing element, for example corresponding on-off circuit or corresponding magnetic resistance.

Fig. 9 illustrates another embodiment of the present invention, and different from the embodiment of introducing before this is that it is not the static magnetic field that adopts permanent magnet, but adopts sensor coil 58 work.This coil is arranged on the bottom 42 of shell 9 or is arranged on as shown in the figure in the breach of shell.Also be that the lever 29 that both arms consist of has an aluminium sheet section 59 as transmitting element 43.This section when lever 29 swings near coil 58 or away from this coil.Coil 58 for example is on the printed circuit board 60, and the latter supplies with alternating voltage with unshowned circuit and to coil 58.The damping of coil 58 is depended on the position of aluminium sheet section 59 and is increased during near coil 58 in aluminium sheet section 59.This signal that can be used as for detection of lever 29 positions uses.Between the electric current that also can detect the voltage that is applied on the coil 58 and flow by coil along with aluminium sheet section 59 approach or away from the phase shift that changes.This point also can be in simple simulation or digital circuit for generation of signal.Can also utilize the frequency change that occurs near coil 58 by aluminium sheet section 59 in the circuit that connects.

In a kind of embodiment of simplification, also sensing element can be installed on the shell wall or its outside on.This embodiment is shown in Figure 11.Protection tube contact 45 is installed in the side on the shell 9.Its joint 61,62 was led hermetically shell aperture and it was connected with electric wire in being in shell 9.Permanent magnet 50 is also supported by lever 29.

Figure 12 illustrates a kind of different embodiment of yarn feeding device, and the yarn feeding device 5 of itself and Figure 11 is basically identical.Consult thus the corresponding applicable explanation in front.But be with the difference of above-mentioned yarn feeding device, the yarn feeding device 5 of Figure 12 has the yarn stopper (Auslaufabsteller) that can vertically adjust formation.It has the shell 9a of itself for this reason, and this shell can be vertical shown in Figure 12 illustrates by arrow, namely with the parallel adjustment of the axis of rotation of thread wheel 14.Adjustment can be stepless or classification carry out-according to actual requirement.The yarn stopper consists of as mentioned above.Transmitting element also remains on the lever 29 with the form of permanent magnet 40.The sensing element 44 of protection tube contact 45 modes is arranged on the outside of shell 9a.Thread wheel 14 is connected removably with its axle, in order to can adapt to different yarns.If use the axially different thread wheels 14 that extend, so then desired diverse location can be realized by vertically adjusting the yarn stopper, and it comprises shell 9a, sensing element 44, transmitting element 43 and the yarn detector 29 that distributes.Therefore the yarn stopper forms a separate unit that is connected with the shell 9 of yarn feeding device 5.This unit is different from diagram in addition can be with yarn eye 24, thereby the yarn stopper can utilize unique operation with yarn eye 24 from the adaptive of different thread wheels, and namely unique adjustment campaign is carried out.

The Yarn detector that proposes can be used as independent device or installs for example part use of yarn feeding device as other.It has the yarn detector of movable supporting, and it is close on the yarn and according to tension force or the sag of yarn and moves.Fixing and the coefficient transmitting element of sensing element on the yarn detector.Sensing element is arranged on inside or its part of closure.Yarn detector can be bearing on the shell, and wherein, this supporting arrangement is arranged on the outside of shell inner cavity and does not connect with it and is connected.By touchless interaction between transmitting element and the sensing element be arranged on two shell walls between the element, function continues to be guaranteed.

The reference numeral table

1 circular knitter, 29 levers

2 knit fabric tubes, 30 pivoted arms

3 knitting positions, 31 pivoted arms

4 knitting positions, 32 arms

5 yarn feeding devices, 33 arms

6 yarn feeding devices, 34 ends

7 yarn feeding devices, 35 ends

8 machine rings, 36 sidewalls

9 shells, 37 sidewalls

10 axles, 38 support holes

11 belt pulleys, 39 support holes

12 odontoid belts, 40 permanent magnets

13 drive units, 41 carriers

14 thread wheels, 42 bottoms

15 yarns, 43 transmitting elements

Housing department 44 sensing elements on 16

17 lower casing sections, 45 protection tube contacts

18 inner chambers, 46 sensing devices

19 breach, 47 glass tubes

20 yarn feeding eyes, 48 contact tongues

21 catch knot device 49 contact tongues

22 Yarn Brakes, 50 contact tongues

23 yarn feeding eyes, 51 contacts

24 yarn eyes, 52 lug bosses

25 signal lamps, 53 magnetoresistance resistance

26 yarn feeding detectors, 54 gyroaxises

27 yarn detectors, 55 arms

28 levers, 56 permanent magnets

57 elements, 60 printed circuit boards

58 coils, 61 joints

59 section 62 joint

Claims

1. textile technology device (5) has the shell (9) of encirclement inner chamber (18),

Have yarn detector (27), it comprises the yarn detector element (29) that is bearing in movingly on this device (5), and this yarn detector element is arranged on the outside of the inner chamber (18) of described device (5),

Have sensing device (46), it has the sensing element (44) that the signal of transmitting element (43) position is depended in transmitting element (43) and generation,

Transmitting element (43) and yarn detector element (29) are connected and are arranged on the outside of inner chamber (18), sensing element (44) is arranged in the shell (9) of described encirclement inner chamber (18), perhaps be arranged in the shell of sensing element (44) own, the shell (9a) of this sensing element (44) own is arranged on the shell (9) of described encirclement inner chamber (18)

Wherein said yarn detector element (29) is bearing on the supporting arrangement, and this supporting arrangement allows yarn detector element (29) to carry out oscillating motion,

Wherein this yarn detector element (29) carrying transmitting element (43) perhaps itself is exactly transmitting element (43), and

The position of described sensing device (46) monitoring yarn detector (27).

2. by device claimed in claim 1, it is characterized in that, the shell (9) of described encirclement inner chamber (18) is made by nonmagnetic substance at least in part.

3. by device claimed in claim 1, it is characterized in that, the shell (9) of described encirclement inner chamber (18) is made of plastics at least in part.

4. by device claimed in claim 1, it is characterized in that, the shell (9) of described encirclement inner chamber (18) is plastic casing.

5. by device claimed in claim 1, it is characterized in that, the inner chamber (18) that is surrounded by the shell (9) of described encirclement inner chamber (18) is to outer closure.

6. by device claimed in claim 1, it is characterized in that, yarn detector (27) has at least one lever that can swingingly support as yarn detector element (29).

7. by device claimed in claim 6, it is characterized in that, lever (29) can vertically be adjusted by oscillating motion.

8. by device claimed in claim 6, it is characterized in that, yarn detector element (29) shell (9) upper support of described encirclement inner chamber (18) at least one on its bottom in the blind bore (38).

9. by device claimed in claim 1, it is characterized in that, yarn detector element (29) is bearing in the support holes (38,52 ') of separating with inner chamber (18).

10. by device claimed in claim 1, it is characterized in that, yarn detector element (29) has or supports the section that is made of metal (55,59) of at least one formation transmitting element (43).

11. by device claimed in claim 1, it is characterized in that, yarn detector element (29) has or supports at least one section's section (55) that is made of metal, its magnetic conductivity constant

Greater than 1 and this section form transmitting element (43).

12. by the described device of claim 11, it is characterized in that, yarn detector element (29) has or supports the ferromagnetic section section (55) of formation transmitting element (43).

13. by device claimed in claim 1, it is characterized in that, yarn detector element (29) has or supports the permanent magnetism section section (40) of formation transmitting element (43).

14. by device claimed in claim 1, it is characterized in that, sensing element (44) is switch.

15. by device claimed in claim 1, it is characterized in that, sensing element (44) is magnetic protection tube contact-making switch (45) to be operated.

16. by device claimed in claim 1, it is characterized in that, sensing element (44) comprises at least one closing contact (49).

17. by device claimed in claim 1, it is characterized in that, sensing element (44) comprises at least one break contact (48).

18. by device claimed in claim 1, it is characterized in that, sensing element has the magnetic circuit of permanent magnet excitation, its permanent magnet (56) is arranged in the shell (9) of described encirclement inner chamber (18).

19. by device claimed in claim 1, it is characterized in that, sensing element (44) is the alternating field sensor.

20. by device claimed in claim 1, it is characterized in that, sensing element (44) has the electronic component (53) to the magnetic field sensitivity.

21. by device claimed in claim 1, it is characterized in that, the wall section of the shell (9) of described encirclement inner chamber be set between sensing element (44) and the transmitting element (43).

22. by device claimed in claim 1, it is characterized in that, shell (9a) of sensing element (44) itself is bearing on the shell (9) of described encirclement inner chamber (18) of textile technology device (5) adjustablely.

23. by the described device of claim 22, it is characterized in that, the adjustment direction is axial consistent with thread wheel.

24. by device claimed in claim 1, it is characterized in that, this textile technology device (5) is the yarn feeding device for knitting machine.

25. by device claimed in claim 1, it is characterized in that, this textile technology device (5) is the yarn feeding device for loom.

26. by device claimed in claim 1, it is characterized in that, this textile technology device (5) is the yarn feeding device for braiding machine.