CS232852B1 - Winding mechanism for multished loom - Google Patents

Abstract

A winding mechanism for a weaving machine having weft inserters (1) preferably arranged around a rotatable table, each weft inserter has a spool (2) above which is mounted an electromagnet (18); the spool is arranged to be acted on for winding by fluid pressure which rotates the spool by means of turbine blades 17; the spool is normally braked to the inserter by a plate 22 at the winding station but is unbraked by means of the electromagnet and may be further unbraked by the action of the fluid pressure lifting the spool off a braking seating in the inserter; weft thread is guided to the spool by a guide preferably a tube (24). <IMAGE>

Description

The present invention relates to a winding device for. víceprošlupní weaving machine consisting of a rotating table on cradles zanaěečů sc ^{and K} ou.pro ^{measuring; Elongated UTR} d to b ^s n ^iti.

At present, several types of winding machines are used to create a measured weft stock in multi-thread weaving machines. One of them includes a winding head with a spindle ^when it is adapted for both ^T and CIV ^alkyl Zana ^UTR u. Wavi.ce winding ^P is at ENA ^of pliers. Whose jaws guide the weft thread through the coil bobbin ze'zásobní weft inserter. The weaving hat then lands on. the coil of the clogger, thereby gripping the weft and sliding it with its offset projection into the groove in the clogger of the clogger, thereby allowing it to roll over. Spindle drive is derived from a high speed via the belt pulley and the sensor is equipped trzfou, with ^p and ojkou ^No asovacím úskrojím umořujícím off with ^p pole switched ya ^to the brake after a precise time interval corresponding to a desired number of coil turns of the projectile. The winding head further includes adjusting elements allowing the necessary length of the weft to be measured.

The disadvantage of this type of winding device is its relatively high, complexity and undesirable wear of some winding elements such as a bobbin of a carrier, a cap, a scanning pulley and the like. Wear is difficult to keep constantly. Due to the considerable weight of the entire device, this is very noisy during operation.

The known device described above is provided with an electromagnetic clutch and a brake which removes some drawbacks of the mechanical design,

However, there is a problem with the low reliability of some electrical parts.

Some devices use wing twisting, which also removes part of the twisting deficiency using the cap, but leads to more complicated ejection of the backfeed coil from the winding head and requires the wing to always be in the same position ·

Also known is a winding device in which the weft is blown by a stream of air into the inflator chamber of a clogger. A disadvantage of this solution is the non-disciplined weft placement in the inflatable chamber, which causes uneven weft distribution throughout the shed length. Also the supply of compressed air to the winding device and to the weaving machine is very unfavorable.

The above-mentioned disadvantages and drawbacks are eliminated by the winding device according to the invention, which consists in that above the rotary table it contains electromagnets, each of which is provided with a bias with a compression spring for pressing the blades to the face of the coil. a coil nozzle connected to a vacuum source is provided below the turntable when the coil is provided with a plurality of radial apertures in its bottom and a bladed turbine bottom which is rotatably supported on the pin anchored in the diaphragm with the intake apertures mounted in the bottom; through the hole of the insert.

The advantage of the winding device according to the invention is the relative simplicity of construction, low noise and trouble-free operation due to the small rotating masses. The winding device enables reliable weft threading of a precisely determined weft thread length.

232 852

Ex ^CART curvaceous ^p rove ^d measurement soulkacího ^{oJ t} swarm ^s after ^dL e invention are illustrated in the drawings wherein: FIG. 1 is an axial sectional view of one ^p racovním m ^s stem sou ^ Whose ^{oJ t} swarm ^{co p} RVN ^¹H on ^p rove ^d en ^, o r ^b. 2 a longitudinal-section ^of one pracovnám bowls ^ tem winding ^{on the} machine ^{hole HEH d} o ^p rove measurement of a- ^b R 3 is an axial section ^d n ^s m spooling working position ^{at the} machine by ^¹H rubs ^t still further embodiment.

^{In a} machine winding ^P ro ^p Rosh more UPN ^{s l} t ^k ns machine. example, of a not shown rotary table provided nexnázorněnými beds insertion taker 1 which are each equipped with a coil 2 freely rotatably mounted in the through hole 2 · spool 2 is its hub 4 mounted on bearings 2 »which are fitted to a ^pin in 6 ^BC fastened ^of n ^e m ^b к MEM wound ^£ o ^p en and ^{t, s h} sacxc plurality of holes. 8th membrane £ £ is of a ring and is attached via non-represented screws · elastic pad 10 to the shoulder 11 in the through hole 2 · Coil 2 is provided with a circumferential groove .12, whose one side wall 13 · ^{f p} Rodla ENA and extends between. memhránu 7 ^ad the orange ^é fitted with ^a 14 ^P r ^of hole chozím Ji. The bottom 15 of the circumferential groove 12 is provided with a set of radio holes. 16 ^U stícíc ^{h p} into free space only between, on the bottom 15 ^b watery ^é groove 12 and the hub 4 of the coil 2, wherein there are arranged ^{LO ATE} forming a turbine vane 17 "

The electromagnet 18 is provided with a recess 20 in its axis, in which the compression spring 21 is anchored, to the opposite end of which the foil 22 is fixed,

232 852 abutting the front part of the spool 2 in FIG. 1, covering the entire surface of the turbine 12;

A height-adjustable suction nozzle 23 is connected to the electromagnet 18 in the rotary table and connected to a vacuum source (not shown). Against the circumferential groove 12 of the spool 2 is in inserters one recess »therein ^F reaches navtóěw trulňce 24 U-Numeric ^{Step Ita} 25 · Nav ^ADE c ^s of the tube 24 extends into the annular space 26 around the bobbin 2, which is around the electromagnet 18 with an annular opening 27 connected with free space.

^{Us: p} or n ^{organizes and} spool ^¹H the ^{device; p} Odle a ^b r. 2 is in turn ^{ga h} with ODN ^{E p} us of his ^{series p} o r ^b e o ^dl. 1. EC -tomto ^p 6 ^p rove ^{d P} roc measurement ^hook ne hub '4 coils 2 and the spherical end for contact with a resilient stop 28 attached to the central projection 29 of the electromagnet around the 18th central projection 29 is disposed a compression spring 21 based on the modified mezikruhovitě abutment projection 30 formed on mezikruhovitě planchettes? 22 »abutting in FIG. 2 again on the front part of the coil. 2.

Foil 22 is in this case on its periphery bent upward, which is provided with peripheral projections 31 that extend between the guide projections 32 at the circumference with an annular electromagnet 18th hole 27 around the solenoid 18 extends into the annular space 26 ^to an em ^{l y} c ^s 2 VK guides ^{Affairs t} ru ^tu 24 ^b ice metal thread ^{E s} 2 ^5th

U.S. winding swarm ^{t s p} o r ^b e o ^dl. 3 is formed by ^five to identical m ^s principle. The spool 2 is in this embodiment provided with a base 15 facing the hub к fourth ^p rs ^t encovi ^you simply or 26 ^t »n to ^{EH Z} is introduced ^NAV d ^Affairs 24jje tube is arranged between the bottom 15 and the hub 4 of the coil 2. At the peripheries ^d ew side c ^{and K p} 2 y and ^{saving Aad} ána ^l o ^p atkov ^& turbines 17th

232 852

The coil 2 is secured against overlapping over the top surface of the inserter 1 by a stop shoulder 14 extending into the turbine 17. The electromagnet 18 is provided with a central bore 33 through which the guide tube 24 passes and the air duct through the turbine 17. the opening 33 is provided on the side of the coil 2 with an annular shoulder 34 in which a compression spring 21 is supported, supported on one end by an annularly extending support projection 30 on the annularly formed foil 22.

The winding device according to the invention operates as follows:

After the known passage through the shed of the multi-shed weaving machine where the weft thread has been unwound from its spool 2, the clogger 1 is seated in a rotary table bed (not shown). An electromagnet 18 is approached from the upper side to the coil 2 (not shown) and the suction nozzle 23 from the lower side. A guide tube 24 with weft yarn 25 is simultaneously introduced into the annular space 26 of the coil. The coil 2 of the coil 22 and the foil 22 is subjected to a vacuum by means of a suction nozzle 23. This vacuum simultaneously acts on the weft yarn 25 through the suction holes 8 in the diaphragm 2 »of the turbine 17 and through the radial holes 16 in the bottom 15 of the coil 2. under the vacuum, the end of the weft thread 25 is extended from the guide tube 24 by a certain amount corresponding to the need and secured by a device (not shown). The negative pressure applied to the foil 22 causes it to be pressed against the spool 2 thereby ensuring its initial position before winding. The effect of the vacuum is further increased by the action of the compression spring 21. At some point, the sensor (not shown) commands the control electronics controlling the electromagnet 18 which

232852 pulls the foil 22 against the compression spring 21. This will lead to releasing the spool 2 and simultaneously the opening of the air inlet to the turbine vane 17 »which is a flow spinning» thus wound onto the spool 2 in ^BP n ^IT network 25. ^When the ^T about soukáš the MMN ^also for minor by force ^EFFECTIVE n ^{ky p} o ^DTL and ^the u sag mem ^b wound 2 »whereby ^Z are C ^{and K} and the two stripped ^j Vou ^{b N} N ⁱ sets 13 in a ^p rove ^d measurement ^P of ^dl eo ^b r. 1 and ^2, not on ^the time ^{t b l} b ^{s tk} opposite the turbine 17 from the stop shoulder 14 in the embodiment of. 3, whereby the coil 2 is completely released, so that the winding takes place only with minimal passive resistances arising only in the roller bearing of the coil 2. After a certain time or after a certain number of revolutions of the coil 2 the power-winding 19 of the electromagnet 18 is shut off. it presses the pressure spring 21 on the one hand and the vacuum on the other hand on the coil 2 to stop it.

^p o nasouk: th ^e weft ^é fVIII. LCE 25 vd ^{é p} rt ^{of b} e n ^e for one ^width to the fabric, the weft inserter 1 to the coil 2 is ready for insertion into the shed.

Invention can exploit ^{the live} soukáš ^é weft yarn DO- Zana ^with EC multished ^of the weaving machine.

Claims (1)

SUBJECT OF THE INVENTION 232 852 Winding device for víceprušlupní weaving machine, comprising a turntable on cradles taker with a coil for ODME ^of designated length útaové ni ^{t i, y brand} uj ^i, and in that, ^from an overlying ^t o ^No Nym table contains e ^l EK ^t Romagne ^{those (18)} of them ^{for k} and ^p is ^ZDY at: ren ^beta strands ^from ETOU (22.) with either ^p button ^No interference ^from in ^the u (21) ^p ro ^t la ^lecture and ^{learning p} lanžet ^y (22) on the face of the coil ⁽²⁾ clogs ^p e ⁽¹⁾ and ^d but Nava ^d ECI wind ^{bi C (24) p} ro zavedeš end weft n ^{iti (2} 5) ^d of the annular space at the bottom (15) C ^s vk ^{y (2h PRICE} em ^{of P} by ^d turntable is US ^P o ^of Adan suction mushrooms ^and CE ^{(2 3), PR} and ^P Ojen ^sic EZ ^d swarm kd ^YZ coils: and ⁽²⁾ in the ^world m base (15) of ^p at ^R ENA system ra ^Dial n ^Ch. openings ⁽¹⁶⁾ and the bottom (15) ^when l ^eh and ^I C ^{s LO} atkovou fleabane ^{(1 7)> to Ter} is ^p ole ^No them with the coil ⁽²⁾ of the rotary store ENA ^f to ^c u e ^p (6) anchored in meitoráně ⁽⁷⁾ with Sac ^I I orifices ^(p evnén бЛ u ^é ^ ichiozí m aperture ⁽³⁾ clogging ^p e (1).