SE521621C2

SE521621C2 - Method and apparatus for reeling steel wire from wire coil

Info

Publication number: SE521621C2
Application number: SE0101786A
Authority: SE
Inventors: Fahredin Rexhaj
Original assignee: Metso Paper Inc
Priority date: 2001-05-17
Filing date: 2001-05-17
Publication date: 2003-11-18
Also published as: SE0101786D0; WO2002092487A1; SE0101786L

Abstract

A reeling-off device for steel wire reels the wire (29) upward and has a swivel (23, 19), which leads the wire downward through the centre of the wire coil (20) and out the side below the coil. On the upper portion of the wire coil a structure (21) is attached, which carries a ring with an outwardly directed bristle rim (26). The bristle rim constitutes a brake for the wire (29) and brakes the wire at sudden stops at the wire feed, so that the risk of knot formation in the wire is reduced. The device comprises also a balancing magazine (33-35), which forms a spring-loaded wire loop.

Description

f V1 __. f V1 __.

FÅ) (E) 'Al 2 och svetsade till en hylsa 17. En spole 20 med tråd, vanligen ståltråd, är påträdd på trådspolestället 13-16 och en konisk rörkonstruktion 21 med en plastring 22 vilar på trådspolens 20 övre del. Hylsan 17 bär en leka 23 och en rörkonstruktion 24 med en ring 25. Lekan har ett excentriskt placerat ledhjul 19 som har sin horisontella axel vinkelrät mot hylsans 17 vertikala axel. Rörkonstruktionen 21 är konisk, men har en rak del 27 med aningen mindre diameter än trådspolens 20 innerdiameter.FÅ) (E) 'Al 2 and welded to a sleeve 17. A spool 20 with wire, usually steel wire, is threaded on the spool pin 13-16 and a conical tube structure 21 with a plastic ring 22 rests on the upper part of the spool 20. The sleeve 17 carries a play 23 and a tube structure 24 with a ring 25. The play has an eccentrically placed guide wheel 19 which has its horizontal axis perpendicular to the vertical axis of the sleeve 17. The tube structure 21 is conical, but has a straight portion 27 with a slightly smaller diameter than the inner diameter of the wire spool 20.

Flörkonstruktionen 21 förs in itrådspolen 20 så att dess raka del 27 styrs av trådspolen och den koniska delen 28 ovanför den raka delen vilar på trådspolen.The web structure 21 is inserted into the wire spool 20 so that its straight part 27 is guided by the wire spool and the conical part 28 above the straight part rests on the wire spool.

Därigenom blir rörkonstruktionen 21 fixerad i trådspolen men den kan följa med trådspolens övre del nedåt när trådspolen blir kortare under avhasplingen. Vridning av rörkonstruktionen 21 förhindras av att rören 13-16 är belägna mellan fyra inbuktande stöd 38.As a result, the pipe construction 21 becomes fixed in the wire spool, but it can follow the upper part of the wire spool downwards when the wire spool becomes shorter during unwinding. Rotation of the pipe structure 21 is prevented by the pipes 13-16 being located between four bulging supports 38.

Plastringen 22 visas förstorat som figurerna 3 och 4. Den har ingjutna trådar som sticker ut radiellt kring dess periferi som en krans av borst 26. Trådarna är av slitagebeständigt och böibart material, lämpligen en plast som nylon och deras diameter bör överstiga 1 mm och kan exempelvis vara 1-2 mm. Deras utstickande längd kan lämpligen vara mellan 7 och 10 cm och de kan vara i en rad som visas eller i flera rader. Plastringen 22 ärfastskruvad i rörkonstruktionen 21 och ringen av borst 26 kommer alltid att ha ett och samma läge i förhållande till trådspolens överände när överänden sjunker under avhasplingen eftersom rörkonstruktionen 21 vilar på trådspolen med sin koniska del 28 belägen ovanför den styrande raka delen 27. Med denna konstruktion kan inte tråden komma i kläm under avhasplingen Tråden 29 från spolen leds i en båge upp till lekans 23 ledhjul 19 och ned genom hylsan 17 och därigenom ned genom trådspolen till en ledrulle 30 och över ytterligare två ledrullar 31 och 32 och upp till ett ledhjul 33 och vidare över två ledhjul 34 och 35 till en utloppsstyrning 36. Ledhjulet 34 år rörligt och belastat av en dragfjäder 37 så att ledhjulen 33,34,35 tillsammans formar tråden till en utjämningsslinga som minskar accelerationerna vid plötsligt stopp av trådutdragning ur utloppsstyrningen 36.The plastic ring 22 is shown enlarged as Figures 3 and 4. It has molded-in wires which protrude radially around its periphery as a ring of bristles 26. The wires are of wear-resistant and flexible material, preferably a plastic such as nylon and their diameter should exceed 1 mm and can for example be 1-2 mm. Their protruding length may suitably be between 7 and 10 cm and they may be in a row shown or in several rows. The plastic ring 22 is screwed into the tube structure 21 and the ring of bristles 26 will always have one and the same position relative to the upper end of the wire spool when the upper end sinks during unwinding because the tube structure 21 rests on the wire spool with its conical part 28 located above the guide straight part 27. construction, the wire cannot be pinched during unwinding The wire 29 from the spool is guided in an arc up to the guide wheel 19 of the toy 23 and down through the sleeve 17 and thereby down through the wire spool to a guide roller 30 and over two further guide rollers 31 and 32 and up to a guide wheel 33 and further over two guide wheels 34 and 35 to an outlet guide 36. The guide wheel 34 is movable and loaded by a tension spring 37 so that the guide wheels 33,34,35 together form the wire into a smoothing loop which reduces the accelerations when abruptly stopping wire pulling out of the outlet guide 36.

Qfï PQ) r'\ \~ När trådförbrukaren, exempelvis en ombindningsstation för balar, drar tråden 29 från avhasplaranordningens utloppsstyrning 36 kommer lekans 23 ledhjul 19 att följa med i trådens avhaspling och tråden 29 kommer att släpa både mot ringen av borst 26 och stålringen 25. Borstringen 26 bromsar kontinuerligt tråden 29 och denna bromsverkan stoppar avhasplingen och hindrar att lösa trådslingor bildas och minskar därför risken för knutbildning. Tillsammans med det fjåderbelastade trådmagasinet 33,34,35, som medför att ett momentant stopp vid utloppet 36 inte blir lika plötsligt vid lekans 23 ledhjul 19 utan något utdraget i tid, kommer risken för knutbildning att bli så liten att den tillåter en betydligt högre trádmatningshastighet och acceleration i en trådförbrukare som intermittent förbrukar tråd, exempelvis en balombindningsstation. Samtidigt som borstringen utgör en broms som ger tillräcklig bromsverkan vid plötsliga stopp ger den inte skadlig bromsverkan vid start. För stark bromsverkan vid start skulle kunna ge trådbrott. Uppfinningen medger därför ökad tillgänglighet och ökad trådmatningshastighet.When the wire consumer, for example a bale binding station, pulls the wire 29 from the outlet guide 36 of the unwinder device, the guide wheel 19 of the toy 23 will follow the wire unwinding and the wire 29 will drag both against the ring 26 of the brush 26 and the steel ring 25. The brush ring 26 continuously brakes the thread 29 and this braking action stops the unwinding and prevents loose thread loops from forming and therefore reduces the risk of knot formation. Together with the spring-loaded wire magazine 33,34,35, which means that an instantaneous stop at the outlet 36 does not become as sudden at the guide wheel 19 of the toy 23 but somewhat extended in time, the risk of knot formation will be so small that it allows a significantly higher wire feed speed. and acceleration in a wire consumer that intermittently consumes wire, such as a balom binding station. At the same time as the brush ring forms a brake that provides sufficient braking effect in the event of sudden stops, it does not give a harmful braking effect at start-up. Too strong a braking effect at start-up could cause a wire break. The invention therefore allows increased availability and increased wire feed speed.

Claims

Patent claims

Method of reeling steel wire from a wire spool (20) where the steel wire (29) is intended for bonding pulp bales, characterized in that the wire (29) is pulled along a ring of bristles (26) coaxial with the wire spool (20) .

Method according to claim 1, characterized in that the wire (29) is pulled from the brush ring (26) via a play (23) and then through the wire spool (20).

Method according to Claim 1 or 2, characterized in that the wire (29) is pulled through a brush ring with an outwardly directed brush (26).

A method according to claim 3, characterized in that the wire is pulled through a brush ring with bristles (26) in the form of plastic wire with a diameter of 1-2 mm.

Method according to one of the preceding claims, characterized in that the ring with bristles (26) is allowed to rest on the upper part of the wire spool (20).

Reeling device for a wire spool with steel wire (29) wherein the steel wire (29) is intended for bonding pulp bales, characterized by a ring with outwardly directed bristles (26), the ring being arranged coaxially with the wood spool (20) so that the wire (29) pulled along the brush at unwinding.

Reeling device according to claim 6, characterized in that the brush (26) is substantially radially directed.

Reeling device according to one of Claims 6 to 7, characterized in that the brush (26) consists of wire with a diameter of 1-2 mm.

Reeling device according to one of Claims 6 to 8, characterized in that the ring with bristles (26) is fastened in a substantially conical position (21) which has a straight part (27) with a diameter slightly smaller than the diameter of the wire spool so that the position ( 21) with a conical part (28) rests on the wire spool (20) when its straight part (27) is inserted into the upper part of the wire spool.

Reeling device according to one of Claims 6 to 9, characterized by a play (23) coaxial with the bobbin (20) and a guide (17, 30) for passing the bobbin thread (29) through the bobbin (29). 20), the ring of bristles (26) being located between the play and the wire spool. Reeling device according to one of Claims 5 to 9, characterized by a leveling magazine (33-35) between the wire outlet (36) of the device and the ring of bristles (26).