US1326644A - Slitting and rewinding machine - Google Patents

Description

-I. A. CAMIIIN AND G. B. BIIICII.`

SLIIIINGIIND IIEWIIIIDIIIG MACHINE n ABPLICATION FILED MAILIQII.

Patented Dec. 30, 1919 w13 ation/w114,

J. A. CAMERON AND G. B. BIRCH.

SLI'IUNG ANDl REWINDING MACHINE.

APPLICATION FILED .MAY 7. 191].

Patented Dec. 30., 1919.4

2 SHEETS-SHEET 2- UNITED sTaTEs PATENT oEEroE.

JAMES A. CAMERON AND GUSTAF BIRGER BIRCII, OF BROOKLYN, NEW YORK, ASSIGNORS TO CAMERON MACHINE COMPANY, OF BROOKLYNNEW YORK, A

CORPORATION OF NEW YORK.

SLITTING- AND `REW'INI)IN'Gr MACHINE.

`isaaeaa.

Specicaton of Letters Patent.

Patented Dec. 30, 1919.

Application ined May 7, i917. serial No. 166,797.

To all whom t may concern:

Be it known that we, JAM-Es A. CAMERON and GUSTAF B. BIRCH, citizens of the United States, and residents of Athe borough of Brooklyn, in the county of Kings, city and State of New York, have invented certain new and useful Improvements in Slitting and Rewinding Machines, of which the following is a specification.

This invention relates generally to slitting and'rewinding machines. j

In the art of slitting and rewinding sheet material difculty is at times; experienced, when operating on certain materials having a pronouncedly fibrous nature, in producing such a complete separation of the web Sections as to insure that no overlapping'or inteiweaving of the web sections can take place during the rewinding operation. The use of fixed separating fingers so located as to separate the sections in thecourse of their travel from the slitting to the rewinding means is well known. An example of one of the more successful types of slitting and rewinding machines in which separating devices of this nature are employed is shown in Patent No. 1,076,189.' While devices for thus acting solely on the web are effective to completely separate the web sections when operating upon a great variety of materials, nevertheless there are certain materials whose nature is such that fibers continue to project from the edges of the websections after passinof the separating fingers. These projecting fibers display a marked tendency to interlace, or interweave, -wit-h each other as the web sections are wound into coil formation, with the result that the contiguous coil faces are, to a greater or less extent, intermeslied, so thai'J the individual removal of the coils from their supporting core is hampered. The main object of the present invention is to produce web section separating means that will effectively prevent interweaving and overlapping of the contiguous edges of the rewound coils.

'With this and other objects in view, the invention lconsists in providing a slitting and rewiiiding machine, having a top rewindiiig roller, with means carried by the roller support to directly'engage and separate the rewound coils.

, In the accompanying drawing, wherein ythere is shown one of themany possible embodiments of the invention,

Figure 1 is a vertical section of a part of a machine embodying the invention and showing a coil separating device in operative position.

Fig. 2 is a vertical, section taken alongy the broken line 2 2 of Fig. l.

Fig. 3 is an enlarged sectional view show-` ing one of the separating devices in detail.

In the particular embodiment of the invention disclosed, a pair of coil supporting and surface rewinding rolls is employed which cooperate'- with a top icwiiiding roller to rewind. the web sections and beneath which is mounted a cutter roll with which score-cutting disks cooperate, as in application Serial No. 146,569. There is also shown, as in the prior application, a web section separating device arranged to operate on the slitted web as it passes from the slitting to the rewinding mechanism. Inaddition to the slitting, separating and rewiiidiiig mechanism just described, there are also shown devices for directly engaging and separating the iewound coils themselves. These coil separating devices are preferably mounted in arms pivotally carried by a member employed for supporting coils 3 on the rewinding shaft 5. The rewinding shaft 5 forms a core for the rewound coils and is so mounted inthe inachiiie that it is free to rise as the diameters of the coils increase. The rewinding roller 6 is journaled in carriages 7 that are adapted to move upwardly along the vertical guide members 8 in accordance with the increase in size of the rewound coils 3.

The web slitting mechanism comprises the cutter roll 9 mounted beneath the rewinding rolls l and 2 where it coperates with the cutting disks 12 to slit the web 4. A bracket 36 attached to the frame piece 37 serves as a bearing for the cutter roll shaft which pro- Awinding roller .6 'to wind the interposed jects through an opening 45 in the frame piece as in the companion application Serial No. 166,796, filed herewith.

' It will be seen that the web l passes from the guide roll 10 through the slitting mechanism and is then acted upon bya separating device 18, which will be hereinafter referred to, and then is drawn'around the rewinding roll 2 and into place on the rewound coils 3. While separating devices suoli as are shown at 13, for operating on a stretch of web after it has been slit into sections, are ordinarily adequateto effectively separate the web sections, it has been' found that` with certain classes of fibrous material the --use of separating devices which' act wholly on the web do not, in all cases, prevent a certain amount of intcriveaving of the contiguous edges of the sections'asftliey are wound into place on the coils. In order to insure that interweaviiig oft' th@ edges of the coils will not take place, coil separating devices which take the forni of thin-edge rollers 28, are arianged'to .be'pjressed intoI the lines of separation between the. web sections. A

The coil separating rollers 28 `are preferably carried by arms 29. piv'o'itcd Vto supporting brackets R0 which are slidably mounted on the bar 31 which latter-rigidly connects the carriages T. The-brackets 30 can be secured in any desired position along` the bar' 31 by means of the thumb-screws 32, in order to place the separating .iollers 28 in alinement with the lines of severance produced 35 by the cutting disks 12, as .indicatedin Fig. 2 of the drawing. The 'separating rollers .28.are preferably biased toward oper'- a'ti-ve position through thepressure exerted by"weights 83, one of which is carried by each a'rm 29. Af hook 34, carried by each arm 4is adapted to placed over a corresponding pin 3 5 on the-bracket 30 to holdth'e'aims out of opera-tive.posit-ion for any reason, such as. that occasioned by the removal of the completedcoils.

i -It .will be seen that separating devices of the roller type just described, by reason of the factthat theyv actfto directly separateA the rewouiid coils, forman eifective means' for preventing theoverlapping of con-tiguous edges of the coils. The coil separating rollers 28 maybe used either in conjunction with the web section separating devices 13,

'or as thei'sole separating means, as will be found -most suitable for the `character of" work being performed. ylhe useof the two forms of separating devices in the same machine forms a particularlyeffective means for separating the sections .when the material being operated upon of such nature that rough edges, which tend to interweave, are produced by the slitting operation.

Each oi the separating vdevices 13, which operate to separate the sections in the web stretch between the slitting and the rewind- 'per member46, which is mounted to bear against the surface of the cutter roll. Two such stripper members are employed and they are mounted so as to be adjusted along the sujiiporting' shaft 47 to take positions 4where they will deflect fioin,tlie roll :the

narrow trimmingstrips that are produced atfthe edges of tlieweb and prevent. the carrying ofthe strips through the rewinding mechanism with. the slitted web.

Any suitable driving mechanism for .the cutter and tlie rewinding rolls may'be einployed; Forl instance thedrive pulley 38 has integral therewith a pinion 48 'which meshes with gear 11. The-gear L11 is in turn rigidly connected to a pinion 49 mesh-4 ing with driving gear 50 of the cutter'roll .shaft and gearsal4 and 52 on the shafts of the rewinding rolls'l and 2.

lVhat is claimed is:

1. A slitting and rewinding machine comprising: means for .slitting afwe'bof sheet 100 material into sections, means for rewinding j the sections into coils includingapressure roller engaging the upper surface of the coils, a movable carriage, displaceable as the diameter of the rewound coils increases, supporting said pressure roll'er, and a sepav4rating member mounted on the carriage independently of the pressure yroller to engage and separate adjoining coils.'

2. A slitting and rewinding machine com- 1,10 prising: means for slitting a web' of sheet material into sections, means for rewinding` the sections into coilsincluding a pressure roller engaging thev upper .surface of' the coils, apmovable carriage, 'displaceable as thev diameter of the 'rewound coils increases, supporting said pressure roller, and a separating member pivotally mounted on the carriage independently of the pressure roller biased to engage a-nd separate adjoining coils. V

3. A slitting and rewinding machine comprising: meansfor slitting al web of sheet material i-nto sections, means foi; rewinding the sections-"into coils including a pressure roller engaging` the upper surface of the coils, a movable carriage, displaceable as the 'diameter'1 of the rewound coils increases, supporting said pressure roller, and a plurality of separating members mounted on assente the carriage independently of the pressure roller, and means for individually pressing the separating members into engagement with the rewound material between adjoining coils. 1

l. [i :lit-ting and rewinding machine comprising: mea-.us for slitting-a web ot sheet material into sections, means for rewinding the sections into coils including a pressure roller engaging the upper surface of the coils, a movablearriage, displaceable as the diameter of the rewound coils increases, supporting said pressure roller, and a plurality ofy separating members pivotally mounted on the carriage independently of Athe pressure roller, and means for individul ally pressingl the vseparati'm; members into engagement withthe rewound material between adjoining, coils. i

A slitting and rewinding machine comprising: means forslitting a web into sections, means including two lower surface rewinding rollers and a top pressure rewind-` ing roller for rejwindingthe slitted sections into side-by-side coils, a support carrying said top pressure reivindine' roller and automatically displaced by increase in diameter of the rewound coils, and separating means mounted on said support and biased independently oli the support toward the rewound coils to engage between adjacent coils.'

6. A slitting and rewinding,Y machine comprising: means 'tor slitting a web into sections, means includinil two lower surface means engaging between adjacent rewoundVv coils, and means for disengaging the separating means from the coils independently of the movement of the main support including a pivotal support mounted on the main support and "carrying the separating means and means normally urging the separating means into engagement between adjacent rewound coils.

7. i slitting and rewinding machine comprising: means lfor slitting a web into sections, means for rewindingthe slitted sec tions into sicle-by-sicle coils, a main support automatically displaced by increase in diameter of the rewound coils, separating means engaging between adjacent rewound coils, and means for disengaging` the separating means `from the coils independently ot the movement ot the main supportincluding a. pivotal support mounted on the main support and carrying the separating means and means normally urging the separating means into engagement between adjacent rewound coils;

Signed at Brooklyn, N ew York city, in the county of Kings and State of New York, this 3d day of May, la. D. 1917.

EAMES A; GAMER-ON. GUSTA? BlRGER BERUF,

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