US1997311A

US1997311A - Fringing apparatus

Info

Publication number: US1997311A
Application number: US641938A
Authority: US
Inventors: Rose Alfred German
Original assignee: Rose Brothers Gainsborough Ltd
Current assignee: Rose Brothers Gainsborough Ltd
Priority date: 1931-11-17
Filing date: 1932-11-09
Publication date: 1935-04-09
Anticipated expiration: 1952-04-09

Description

April 9, 1935. A. G. RQSE FRINGING APPARATUS Filed Nov. 9, 1932 4 Sheets-Sheet 1 A. G. ROSE FRINGING APPARATUS Filed Nov. 9, 1932 April 9, 1935.

4 Sheets-Sheet 2 Inve) April 9, 1935. A. G. ROSE FRINGING APVPARATUS' Filed Nov. 9, 1932 4 Sheets-Sheet 5 April 1935.

A. G. ROSE FRINGING APPARATUS Fil ed Nov. 9, 1932 4 SheetsSheet 4 MNILMMHH 1 V. i A! i 1 Patented Apr. 9, 1935 FRINGING APPARATUS Alfred German Rose, Gainsborough, England, as-

1 signor to Rose Brothers (Gainsborough) Limited, Gainsborough, England, a British com- Application. November 9, 193

2, serial No. 641,938 I In Great Britain November 17, 19311- 7 {13 Claims. (01.15445) This invention relates to apparatus for fringing wrappers for use in connection with wrap-V ping machines. Such. apparatus repeatedly slits one or more of the borders of each ofja series,

of wrappers (which maybe in the form of a'continuous web) so asto'produce .a fringed effect.

It has. been proposed to provide fringing apparatus having; helicoidal knives which operate" on a moving web to cut a fringe in each of the two longitudinal borders of the vweb.

also been proposed toprovide fringing apparatus comprising a numberof disc-shaped rolls which are arranged in pairs on opposite sides. of the web and which are displaced laterally towards 5 the web and simultaneously rotated ;.to slit' the web as it passes between the rolls. I

According to the'present invention an. apparatus for fringing a series of wrappers com-p prises two sets .of spaced shearing members which are mounted with the members of each set opposite" gaps between the members of. the

other set, and operating means for moving one' or both of the sets to slittlie border of a wrapper: by a scissor-wise action. Preferably, each mem-.:

her is double-edged and co-ope'rates with the opposite members of the other set on' each side of it.

In one constructional form according to the,

invention the shearing members are formed each as a'separate part and are pivotally mounted on a spindle with the cutting edges of one set facingthose of the other set.

When the apparatus is arrangedto fringe a series of'wrappers while they are in motion-there is provided, according toa feature of the invention 'a support for the shearing members, which support is movable in the direction of travel of the wrappers and means for reciprocating the support so that it moves with a wrapper while the shearing members are slitting that'wrapperI According to another feature of the present invention there is provided a support for a wrapper and a pressure member operable to engage" a wrapper and press it against the wrapper support while the shearing members are'slitting that wrapper. The pressure memberprevents accidental displacement of the wrapper while it is being fringed and is particularly applicable to I apparatus which is arranged to fringe aseries of separatewrappers. Fringing apparatus constructed in: accordance with the present invention will now be'described, by way of example only, with reference .to the accompanying draw: -ings,'inwhich:,

It has Figure 4 shows a modified form. of the apparatus shownin Figure 1,

lligure B shows in elevation yet a furtherfmodifiediormof the apparatus, and 7 a '1 Figure 6 is. across-section on the r-line 6+6 ofFigure5,

Like references indicate like e pfih d w s Referring first to Figures 1, 2 and 3,a series 15 of wrappers-in thefor n of a continuousweb I0 is fed by suitablemeans -(not shown) "on to a supporting platform Jtwhich is carriedby a bracket [2. Two fringing devices -a re arranged, one oneach side of the platformll. these 20 devices are identical in construction, only one of them will bedescribed, In the arrangement shownin Figures 1 and 2 the Web ID is fed intermittently and the fringing devices operate to tag in an the slit its two marginalborders while the web is 25 the holes |3,.the members A having theirshearing edge [5 facing downwardly and the members A"hav ing.theirshearing edge facing upwardly. 'Ihe.members of one set are arranged alternate- 1y withthe members of the other set. The spin-' dle I6 is carried by bearings l1 and I8 in frames l9 and-20 on a base 2|. g A rod 34. is passed through the holes in the shearingmernbers A and is secured at its ends in bosses 31 and on arms 32 and 33 by means of nuts 35 ,an d36. 'I'he'arms 32 and 33 are integral respectively with'sleevesv 29 and 3B pivotally mounted on the spindle 16. -In this manner the A shearing members A are tied together sothat. they will move as a unit and constitute a fringing'element. A rod 5! is passed through the holes of the members. A and is secured at its ends in

bosses

54 and 55 onarins and 50 by means 55 .'with the shearing members.

of nuts 52 and 53. The arms 49 and 50 are integral respectively with

sleeves

44 and 45 which the other side. A roller 39 is carried by an arm 21, which is integral with the sleeve 29, and .en-'

gages the camgroove 42, while a roller 56 which is carried by. an arm 48 integral with the sleeve 44 engages the -cam-groove' 58.

gaging with a groove in the cam 26, which groove is similar to the groove 42.

engagingia'groove similar to thegroove 58 in the cam'ZB." o

The shaft 22 is continuously rotated by suitable mechanism and as it rotates the cams rock the two sets'of shearing members towards one another while the web stationary, so as to form a plurality-of parallel slits extending'transversely of the web/ The cams then separate the j two sets of shearing members and maintain them 30 the web is fed forward to bring portion of the web into register The operationis separated while the next uncut then repeated. 7 I *In the modified arrangement shown inrFigs ure 4 the" web is fed-continuously by a pair of rollers 95 and 66. the' web being. drawn from a suitable supplyroll over a roller 64. The fringing device is identical with that described in;

. Figure 1' except that it ismounted on a movl a earn-groove 15in a cam 61.

' platform 82 able base 6! which is guided in a guideway 62 in a fixed base 63. The-base 6| is connected by a link "H articulated at; "to the end of'a lever 69 which is pivoted at 10. A roller 13 iscarri'e d;

by a pin 14 on the lever 69 and engages with secured to a continuously rotating shaft 68; As the cam revolvesit reciprocates the base Bl on which the fringing apparatus is mounted. While the fringing apparatus is moving to the right the shearing members are actuated to slit the web. The fringing apparatus is movedto the left while the shearing members are separated from one another. 1 r i The modified arrangement shown in Figures 5 and 6 is arranged to operate on-a series of separate webs. The fringing apparatus is similar in construction to that shown in Figurel but is mounted on a fixed base 8| The wrappers are fed through the fringing apparatus by a conveyor chain 83having pushing elements 85; The

conveyor chain is carried by a pair of sprocket.

wheels 84 of which one onlyis shown. The sprocket wheel 84 is secured ona-shaft 86 jour-' nalled in bearings 81 in a bracket 88. r The shaft 86 is'driven intermittently by suitable mechanism, such as a Geneva gear, so that the conveyor chain 83- moves intermittently. upper lap of theconveyor chain extends through, and is supported in, a groove 89 in a supporting A series of individual wrappers Sil'lFigure 6) are delivered to the left-hand end of the supporting platform 82 and are fed by the pushing elements 85 into position between the shearing members. The wrapper is guided during this movement by upstanding guiding walls The cam 25 is provided with a cam The sleeve 39' has an integral arm 28 carrymg a roller- 40 en- I The sleeve 45 also. has an integral arm 43 carrying the roller 51 The cam .61 is The It is desirable that the wrapper should be held against movement while the shearing members are operated. This is done in the following manner:

Two

levers

92 and 93 are mounted on the shaft I6. Each of these levers includes a downwardly extending arm and an upwardly extending arm which overlie the supporting platform 82. The

upper arms

92 and 93 are connected together by two rods 94, the ends of which are fixed in the arms. These rods carry two pressure members 95 and 96, the pressure members being secured to the rods. The

lower arms

92 and 93 engage against'pins 97 and 98 carried in the

arms

21 and 28 respectively of the fringing apparatus.

'It will be recalled that the

arms

21 and 28 are rocked clockwise (Figure 6) when the shearing members move together to slit the wrapper. Movement of these arms allows the levers 92 and 93'to'ro'ck clockwise also until the pressure members 95 and 96 engage the wrapper and hold it against the supporting platform 82. The arms 92 and 93mayrock clockwise under their. own weight or their movement may be assisted by a suitable spring When the shearing members move apart the pins 91 and 98 will engage the

arms

92 and 93 and raise the pressure members 95 and 96 away from. the wrapper.

I claim:-'-- j 1. Apparatus for fringing a series of wrappers, comprising two sets of double-edged shearing members spaced apart to the extent of their own thickness and mounted with the members of each set opposite the gaps between the members of the other set, and operating means for moving one set of members relatively to and towards the other set to 'slit the border of a wrapper by a scissor-wise action.

2. Apparatusfor fringing a series of wrappers on the spindle with the members of one set alternating with those of the other and with the cutting edges of one set facing those of the other set,-'twooperating parts each associated with a separate one ofthe sets of shearing members and pivotally mounted to turn about the axis of the spindle, means, for securing the shearing members of eachset to the associated operating part to move therewith, and operating means for rocking the operating members about their pivotal axis towards and away from one another.

4. Apparatus for fringing a'series of wrappers while they are in motion comprising two sets of spaced shearing members, a support on which the shearing members are mounted with the members of each set opposite the gaps between the members of the other set, operating means for moving one of the sets of members relatively to and towards the other'set to slit the border of a wrapper by a scissor-wise action, a guide whereon the support is mounted for movement in the direction of movement of the wrappers and means for reciprocating said support to move with a wrapper while the shearing members are slitting that wrapper and to move in the reverse wrapper and press it against the wrapper sup-" port while the wrapper is being slit.

6. Apparatus for fringing a series of wrappers, comprising two sets of spaced shearing members which are mounted to move towards and away from one another and with the members of each set opposite the gapsbetween the members of I the other set, a support for the wrappers, a pressure member movable to engage'a wrapper and press it against the wrapper support, and operating means for moving one of the sets of members relatively to and towards the other set and simultaneously moving the pressure member into engagement with a wrapper.

'7. Apparatus for fringing a series of wrappers comprising two sets of double-edged shearing members, a spindle whereon the shearing members are mounted with the members of one set alternated with the members. of the other set and with the cutting edges of one set facing those of the other set, an operating part associated with one set of the shearing members and pivotally mounted to turn about the axis of the said spindle, means for securing the members of that set to the operating part, a support for a wrapper, a pressure member movable to engage a wrapper and press it against the wrapper support, a one-way connection between the pressure member and the operating part by which the latter holds the former away from the wrapper support and operating means for moving the operating part towards the other set of elements.

8. Apparatus for fringing a series of wrappers, comprising two sets of spaced shearing members which are mounted with the members of each set opposite the gaps'between the members of the other set, a support for the wrappers, a pressure member operable to engage a wrapper and press it against the wrapper support, operating means for actuating the shearing members to move towards one another and the pressure member to engage a wrapper and an intermittently actuated conveyor for conveying the wrappers one by one into register with the shearing members.

9. Apparatus for fringing a series of wrappers,

comprising two sets of double-edged shearing members spaced apart to the extent of their own thickness and mounted with the members of each set opposite the gaps between the members of the other set, operating means for moving one set of'members relatively to'and towards the other set to slit the border of a wrapper by a scissor-wise action, and means in juxtaposition to said shearing members for supporting'a wrapper in a plane to be engaged by said shearing members.

10.Apparatus for fringinga series of wrapperscomprising a spindle, two sets of doubleedged shearing members pivotally mounted on' the spindle with the members of one set alternated with those of the other and with the cutting edges of one set facing those of the other set,- operating means'for moving the members of one set relatively to and towards the other set to slit the border of a wrapper by a scissorwise action, and means inju'xtaposition to said shearing members for supporting a wrapper in a plane to be engaged by said shearing members.

11. Apparatus for fringingthe edges of wrap ping sheets, comprising a support for holding a wrapper sheet, the support being of less width than the wrapper, whereby the edges of the sheet overhang the edges of the support, shearing units 'at each side of the support comprising a pluralityoffgroups of cooperating blade elements, each group. beingv movable relative to the support and to each other and positioned to engage between them the overhanging edges of the sheet 7 at the level of the support, and means for re-.

taining the sheet in position and effecting the longitudinal movement thereof along the support.

12. Apparatus for fringing a series of wrappers, comprising a spindle, an abutment at each shearing members mounted on the spindle with the members of one set alternating with those of .the other set, a spring located between one abutment and the shearing members and pressing the latter together and towards the other abutment, operating means for moving one set of members relatively to and towards the other set to slit the border of a wrapper by 'a scissorwise action, and means in juxtaposition to said shearing members for supporting a wrapper in a plane to be engaged by said shearing members.

13. Apparatusfor fringing a series of wrappers comprising a spindle, an abutment at each end of the spindle, a large number of identical flat shearing members, each formed with a twoedged cutting surface pivoted on the spindle with the cutting surfaces on alternating members facing in the reversed direction to those on the remaining members, a spring located between one abutment and the shearing members and pressing the latter together and towards the other abutment, operating means for moving one set of members relatively to and towards the other set to slit the border of a wrapper by a scissor-wise action, and means in juxtaposition to end of the spindle, two sets of double-edged said shearing members for supporting a wrapper V in a plane to be engaged by said shearing members.

ALFRED GERMAN ROSE.