US2895596A - Apparatus for continuously feeding a band of textile or similar material - Google Patents

Description

July 21, 1959 J. A. KUYPERS 2,895,596

APPARATUS FOR CONTINUOUSLY FEEDING A BAND OF TEXTILE OR SIMILAR MATERIAL Filed June 24, 1955 2 Sheets-Sheet 1 INVENTOR X WW ATTORNEY July 21, 1959 J. A. KUYPERS 2,895,596

APPARATUS FOR CONTINUOUSLY FEEDING A BAND OF TEXTILE 0R SIMILAR MATERIAL Filed June 24, 1955 2 Sheets- Sheet 2 INVENTORY 7 BY W,% MYW% ATTORNEY United States Patent C) APPARATUS: FOR CONTINUOUSLY FEEDING A BAND OF TEXTILE OR SIMILAR MATERIAL JoannesAndreas Kuypers, Weert, Netherlands Application: June 24,1955, Serial" No. 517,888

Claims-priority, application Netherlands June 28, 1954 2 Claims. (Cl..203 150) The'invention refers to a method for continuously cutting and winding a band of textile or similar material, from the roll of-material, and'to a machine'applying this method.

- By applying such a method it would bepossible'to'cut a straight band-of material by means of anumber'of' cutters into-straight strips, if for practical operation this method did'not present certain serious difliculties. In the fi'rstplacethe-width of the strips can hardly be altered;

in the second place the strips are cut off at fixed lengths, while thirdly it' ispractically infeasible tocut oi the outer strips in the same and right width throughout, which causes much waste.

' To obviate. the said drawbacks the method according to the invention is characterized in that a double band of-fiatly rolled material is unwound from a'roll rotating round a shaftlperpendicular to the'unwinding shaft, onto a drum-mounted in a line with the first shaft; and revolving at the same speed of rotation; on the admissionsideof the drum an admission-cone spreads out theband ofmaterial like a tube, which is then pulled by a constant, yet adjustable tractiveforceover a cylindrical part of the rotating drum, while atthe periphery of the stretched tube-shaped material a rotating cutter cuts off atspiral strip; whichis under tension WOLlIld'Ol'l a revolving roll;

The machine in which the method according totheinvention is applied, is characterized in that it is provided witlia frame in whichtwo shafts, are 'fi ttedin aline, revolving; at the same speed of rotation, when in operation; one of these shafts carries a roll with the double flatly rolled tube-spaced band of material, the unwinding shaft of which is perpendicular to the revolving shaft; on the other rotating shaft is mounted the unwinding drumprovided with an admission-cone,,and a cylindrical part, the. periphery of this latter part being fittedwith a.nurnber offixed bolts on the outside covered with card clothing;v between every two bolts is fitted a reciprocating rod, likewisecovered on the outsiderwithzcardzclothing; aspring presses the rolling end of. therod against: an inclihedtpaneltwith an adjustable angleofzgradient: The machine is on one sideprovided with a guide for lifting a strip of material cut oif by the rotating cutter; behind the cutter is fitted a driven winding-roll on to which the cut-off strip is wound under tension.

The machine according to the invention is further characterized in that the panel on which the ends of the spring-loaded-reciprocating rods covered with card clothing are pressed, can be adjusted revolving as it is round a shaft perpendicular to the direction of the axis of rotation of the machine; an adjustable screw-rod is at a certain distance from the adjusting-shaft connected with the panel by means of a joint.

The machine according to the invention is, moreover, characterized in that the cut-off strip passed between two toothed wheels, and is wound on a winding-roll with a driving-shaft rotating at a slightly greater speed than that of the unwinding cut-off strip; the said wheels are Patented J uly 21,, 1959 ice 2 connected with thisshaft. by means of a frietiom coupling.

Below follows a detailed description ofa band-cute ting machinev applying the method according to the invention as shown in the. diagram,

Figure 1 is a side-view of the complete machine;

Figure 2 is a section along. the line. II-II. of? Figure 1;,

Figure 3 is a detail-drawing of a reciprocating rod. covered with card clothing,

On the frame 1 are mounted in a line the shaft. 2. in the bearings 4 and 5, and the. shaft 3. in thebearings. 6 and 7. Both shafts are driven at the. same speedlofi. rotation, and consequently synchronizewhen in operation;. According to the illustrated example. the two shafts: 2 and 3 arev driven by one and the same electromotor, 8,. which is" provided with a rope-pulley 9,.while theshaft. 2 is fitted with the rope-pulley, 10,.which: is connectedwith the rope-pulley 9" by means of a rope. For driving. the shaft 3 an intermediate shaft has beenmounted in the bearings 15". and 16; The transmission of. effort from the shaft 2 to the. shaftz3' iseifectedby the.chain-, gears 12, 1'3, 14,v and 17, 18 and 1-9. This. meansof. transmission is only given by way of illustration;.it-. is. clear, that any other suitable way will have the same effect;

Perpendicular to the shaft 3 is fitteda shaft=stump 21 on which. the unwinding-roll 20 revolves. A. band: of.

material. is wound on this roll- 20, wovenintubeeshape so that it lies flat and double. on the roll. During. the cuttingprocessaccording to the invention this fiat-.tubespaced band 37" is gradually unwoundEfrom.flied-011120.,

A fixed or adjustable drurn2'2 is fitted by. means of at cotter on the shaft 2 in line. with the. shaft 3; thedoubleband of material ispulled over. this. drum. as a. taut tube, wheneafter at the periphery. a spiral strip iscutrofff wards throughout its periphery, hence: away. fiomthe roll 20.

This gradual passage of the tube-shaped material; is effected as follows:

' The outside periphery of the cylindricalpart 24 ofthe drum is at equal. distances provided;.with.anumber of. bolts.25;' fixed by the nuts .26I 'Ihesebolts 25 are. partly covered on the" outside with card clothing A. recipirocating rod 28 is fitted between .each pair. of.fixedibolts 25; a detajled'description of'this'rod and itsv operation as shown in Figure 3 follows below.

The bar of the rod, which may have a roundlsquare or rectangular section, runs through the passage 50" of the bacl plate 49 0f the-drnnr 22E This ro'dislikewi'se covered on the outside with card clothing 45. This card clothing consists of a foundation of hard felt or a similar material, filled with a great number of metal pins 46 with bent heads. These pins are fixed vertically in the felt, while the heads 47 of the pins are all bent in the same direction. When the rods 28 move backwards and forwards along the axis in a direction opposite to the pin-heads 47, the pins will glide over the material with a reverse movement of the rods 28, however, the pinheads 47 will grip into the material pulling it backwards. It is obvious, that when the rods 28 move towards the unwinding-roll 20, the stretched tube-shaped material is held by the pin-heads of the card clothing 27 of the fixed bolts 25, which face the same direction as the pin-heads 47 preventing the taut tube-shaped material from recoiling, while the reciprocating rods 28 gradually and The. drum 22 has an Behind this,

smoothly pull the tube-shaped material away from the unwinding-roll 20.

The reciprocating movement of the rods 28 is effected by the. tension of a draw-spring 51 fastened to a hook 53 on the rod 28, and a fixed hook 52 fitted on the inlet:

machine is in rotation the ends 30 of all the rods 28 are in permanent contact with the inclined panel 31. When moving upwards on the panel 31, the rods 28 will with the turned-back pin-heads 47 pull the tube-shaped material 38 gradually backwards, while in the. downward movement of the rods 28 the pin-heads will glide over the material. The material cannot recoil, as in this action the pins 27 of the rotating bolts 25 hold the material in place.

The extension 57 of the frame 1 carries a second electromotor 42, whose shaft is at one end fitted with the rotating cutter 41, while its other end drives a rope through the rope-pulley 45, which drives the winding-gear of the cut-ofi strip.

The tube-shaped material 38 stretched over the drum 22 is on one side slightly lifted by a sector-shaped guide 39, to free the material from the cylinder-casing. This guide 39 is provided with a slot through which the round cutter 41 passes when cutting off the material. The cut off strip 58 then passes between two toothed wheels 54' and 55 with opposite rotation, eventually to be wound on the winding-roll 56. The two toothed wheels 54 and 55, and the winding-roll 56 are driven by the motor 42 or by the drum 22, at a speed of rotation that is slightly greater thanthe unwinding speed of the cut-off strip 58 at the cutter. These toothed wheels and the windingroll 56 are preferably connected with their respective driving-shafts by means of a friction-coupling, that the cut-off strip may well be kept tight throughout.

The method according to the invention, and the machine applying it have the great advantage that while continuously cutting off a strip of material, the width of such a strip can be regulated by merely changing the angle of gradient of the panel 31. If the position of the panel 31 is perpendicular to the direction of the revolving shafts 23, the width is 0, as the rod 28 stands still, and the material 38 does not move; the greatest width will be obtained at a maximum angle of gradient of the panel 31.

As the speed of the spiral of the cut-off strip is but low, this does not hinder the operational application of the band.

I claim:

1. A feeding means for a band cutting mechanism for 4 l continuously cutting a spiral band of material from a fabric tube, comprising a mandrel mounted for rotation about a fixed axis, a drum mounted coaxially on said mandrel for rotation therewith, an annular series of relatively spaced retainer cards fixedly supported on said drum, a further annular series of relatively spaced feeding cards mounted on said drum for reciprocal movement axially of drum and mandrel between adjoining retainer cards, said feeding cards and said retainer cards both having outwardly presented similarly axially inclining carding teeth for operative engagement with the interior of a tube of fabric received on said mandrel, an axially inclined flat cam element and means supporting same 1 in axial alignment with said drum, and cam follower members extending axially from said respective feeding cards into operative engagement with said cam element, whereby rotation of the said drum will cause reciprocatory feeding movements of said feeding cards, said cam element being mounted for angular adjustment about an axis transverse to the axis of said drum to vary the effective feeding strokes of said feeding cards simultaneously and uniformly, the flat face of said cam element being parallel to said transverse axis.

2. A feeding means for a band cutting mechanism for;

continuously cutting a spiral band of material from a fabric tube, comprising a mandrel mounted for rotation about a fixed axis, a drum mounted coaxially on said mandrel for rotation therewith, an annular series of relatively spaced retainer cards fixedly supported on said drum, a further annular series of relatively spaced feeding cards mounted on said drum for reciprocal movement axially of drum and mandrel between adjoining retainer cards, said feeding cards and said retainer cards both having outwardly presented similarly axially inclining carding teeth for operative engagement with the interior of a tube of fabric received on said mandrel,

an axially inclined fiat cam element and means support-- ing same in axial alignment with said drum, and cam follower members extending axially from said respective feeding cards into operative engagement with said cam element, whereby rotation of the said drum will cause reciprocatory feeding movements of said feeding cards,; said cam element comprising a flat cam plate, means.

supporting said plate adjacent one axial end of the mandrel for angular adjustment about an axis normal to and transecting the rotational axis of the mandrel, and means plate for angularlyoperatively connected to said cam adjusting said cam plate.

References Cited in the file of this patent UNITED STATES PATENTS 1,592,805 Berry July 13, 1926 1,643,159 Gardner Sept. 20, 1927- 1,753,645 Camfield Apr. 8, 1930 2,350,027 Gardner May 30, 1944 2,641,317 Pasold June 9, 1953 2,644,522 Parker et al. July 7, 1953 i 1 2,696,252 Rosen Dec. 7, 1954

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