US2672932A - Machine to slit material - Google Patents

Description

March 23, 1954 A R GLASSMAN 2,672,932l

MACHINE TO SLIT MATERIAL March 23, 1954 A. R. GLASSMAN 2,672,932

MACHINE To sLIT MATERIAL FiledDec. l5, 1949 5 Sheets-Sheet 2 arma/WK March 23, 1954 p R GLASSMAN 2,672,932

MACHINE TO SLIT MATERIAL Filed Dec. 13, 1949 5 Sheets-Sheet 3 J J@ INVENTOR. I

March 23, 1954 A. R. GLA'ssMAN MACHINE To sLIT MATERIAL 5 Sheets-Sheet 4 Filed DeC. 15, 1949 JNVENTOR.

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MACHINE To SLIT MATERIAL Filed Dec. 15, 1949 5 sheets-sheet 5 I WMM@ A"thestrip showing the cutting Patented Mar. 23, 1954 .UNl'T-.ED SrTATiES lPATEN T OFFICE Y MACHINE 'ro starr MATERIAL *Alfred R.'1Glassman, Kings County, N. Y. App1iatio'-neibe;13,'1949, seriarNo. 132,668

The purpose fof my' invention'istoprovide a 'machineto `slit material or cutting'strips lofimaterial' in various widths fromV material "mounted 'A'further purpose of my invention isv that the A further'purpo'seof'my invention is that the 'knife'edgeis preserved in its sharpness by cutting through the material "only, Lthe 'knives being mounted are circulariin form, are set on the roller and spaced as'desired; revolving with the roller on which theknives arel rigidly mounted. f Ialso provide a` circular knife edge which is used for pinking'as willjbehereinafter explained.

Referring to` thejdrawings which illustrate my invention:

'Figure 1 is the front elevation of the strip'cutl-ung machine. Y

Figure 2 'is an enlarged'front elevation ofthe 'imachine'fshowing 'details of the' follower roller.

Figure 3*is the side elevation of' the tilting 4frame and details.

Figure 4- 'isY thew firentA e1evauon of Figures. 4v"Figure' is the section taken on the linef5-5 of lFigure V6.

*Figure'isan 'end elevation of Figure5 partly "in`sectio.n. A .j Figure 7 is 'thesection taken on the line 'I-l r'of Figure 1.

Figurev isthe section of thetakeup roller.

vFigure-9is aview similar to Figure 8 'in locked position.

4Figure'lO is'aV perspectivey view of a portion of lines and thel adhesive.

Figure 11.is an elevation of the takeup roller with one position in section.

Figure 12 is an end view of the takeup roller. Figure '1 3 is a section on the line I3--I3 ofv Figure 2 Nillustrating the follower roller adjusting mechanism. Y j

Figure 14 is the section taken on the line I4- IQ of Figure 13.

Figure 15 is the section taken on the line I5- I I of Figure 14.

'Figure 16 is an end View of the completed roll of material.

"Figure 17 is an elevation of the completed rolls 11i Claim. (01.',164-65) on myv machine, cutting" same from |en'd to` end l in 'lengthwise position and'allsocuts the' full-width of the material in any width`strips." desired and as many Width of "strips'as'thematerial'allows for from the overall width.

illustrating the vpinked cuts.

vframe II. frame I I and screws 33 are anchoredbetweenthe 'Y two ends. Figures 5 and 6 show-adjustable selfv2 Figure 19 is a side elevation ofy Figure`| 18. Figure 20 is an elevation of the units of-fcores ready to be stripped onto the winding shaft.`

Figure 2l `is an elevation of the pinkingcutter. Figure 22 is an end view of the pinking cutter. vFigure 23 is a portion of the completed material 'Figure 24v is an elevation of the tapered` roller. Referring to the drawings specical1y,fa'strip cutting machine I, comprising upright f main frames 2, a series of tie rods`3, supplyrollerfd, idler rollers 5, 6 and 1, a supporting shaftE 8, and the bearing 9, with the spring`9 for the material take-up roller IU. yTilting yframes f I I are positioned between the main frames 2 by means of the bearings I2 around the shaft. An idler roller I3 is placed over the shaft 8 intermediarythe bearings I2. The said frames; II areconstructed of two arms forming an approximate rdegree angle. The vertical portion of the frameY II carries the bearings I2. Below the bearings are mounted the brackets I4 through which are'anchored the take-upscrews I5. Said screws carry the arms I6, the outer extremities of' which terminate in pivot points I'I to which adjustable-yoke members I 8 are pivoted. Said yokes consist of two members (see Figure 14), a peg I9 extends sure tube 21 on their tapered surfaces and prevent it from turning except when A material is in motion (see Figure 1). A plurality vof spaced tapered slits 28 on the pressureY tube 2'I'circumscribe the roller which -is the; exact'female impressions of the taperA on the cutters 29, said slits Vhaving been cut bythe circular-'cutters-29 mountedfonto the cutter shaftSIJ. The said shaft 30 is journaled inthe bearings 3|, said bearings being self-aligning and adjustably mountedlto Angle irons 32 are securedyto the aligning take-up unit. Thebearirigs each -have a nutf34 Welded tothedependingv flanges- 35 of the bearings, said nut goes over'the'screw--and has clearance of the channel walls. '('See Figures 5 and 6.) The spacing is provided-bythe sleeve 36 bearing against the-'sidesof each cutter-i129 and vthen held together 'by the nuts 31. 'Apuileyf is yserrated circumference l.

3 secured to the extremity of the shaft 3D which is driven by the belt 29 from the pulley 49 secured to the motor shaft fil of the motor 42. Said motor is anchored to the upper arm of the tilting frame Ii by being secured to one of the supporting bars 43. These bars are slotted at 44 through which the bolts 45 are tapped into the frame H, said bars being provided to adjust the frame into the exact parallel, or fixed rigid position. It will be seen by Figures 3 and 4 that the tilting frame and the component parts are one complete unit which is able to be tilted to any position required around the shaft 8. As the material A to be out, is fed off the supply roller fl over the idler rollers 5 and il, it goes between the pressure roller and the cutters, being cut into strips B of a desired width, then finally being Wound onto a similar plurality of cores which have been previously cut by the cutters while on the roller lil. The grooves on material take-up roller It are spaced so that the cutters will cut through the core to make certain size cores and I grooves which prevents the knife from being dulled (see Figure 11). In order to hold these cores in place, a wedge ill is provided, set into a V-slot 49 in the roller i9.

Figure 8 shows the core as first applied with the wedge on the lower surface the V slot but i as the roller turns in the direction of the arrow,

the wedge will hold against the inner surface of the cores and slowly drive the cores away from K the circumference of the roller i9 thus locking the corek 49 opposing the two ure 9.

`InFigure 1 the taire-up roller is driven through iii-3, in Figl*the pulley 5l and the belt 52 from the motor 53 mounted on the upright frame 2.

Previous to being placed at the cores the material under the surface is adhered tc the cures In Figures 18 to 23 are illustrated a modi; form of the invention in which va 1s required instead of the straight cut. lill similar Adetails to the original form have been given the employed, mounted onto the motor shaft i i. The y pulley 69 is thus disengaged with the belt @i which will idle the said belt, thus idling the shaft The arm l5 is lowered by turning the screw thus bringing the pressure roller into a lower position in front of the members The pressure roller 55 against the cutters will be sufiicient to make the desired cut into the material as it is being drawn between them by the action of the driven take-up roller iii. .In Figure 20, I illustrate a plurality of cores @i2 as 'they are placed onto the takeup roller lil with sufficient spacing between each core to prevent overlap of adjacent strips.

Figures 21 and 22 illustrate a cutter 5S with the This design results in the conventional pinked edge et of the materials C as shown in Figure 23 forming the strips D.

The take-up shaft I9 must be easily demountable. To provide for this, in Figure 1 the pulley 5l is mounted on a stub shaft 55, which runs in the bearing B4. The right end of the stub shaft is slotted at 66 to t over a pin @l extendingthrough a bore 5c of the .end of the shaftV lc. y The opposite extremity of the shaft IIJ is turned down and runs in the bearing 9. When the shaft I0 must be taken off, the spring 9 is compressed by pushing against the said spring 9', disengaging the pin 61 from the slot 6B consequently freeing the shaft l0. When the cores *62 pressure contact the shaft lll, the pressure roller will be driven by the shaft vIll by means of frictional contact for the purposes of pinking.

In Figure 24 is shown a modified form in which a double tapered rotating shaft E is placed against the cloth A below and forward from the supporting shaft 8, the tapers going from high points at the center 'i9 and 'H down to the outside diameter of the take-up roller as at 72. This facilitates keeping the rolled on material from folding, creasing or rolling unevenly before slitting.

The double-tapered rotating shaft shown in Figure 24 at E may be used on the round cutting knife blade or on the pinking wheel cutter.

The cutting edge on the cutter 29 is shown for purposes of illustration but varied edges on the cutter may be ground.

Although the drawings and specification disclose the use in which I have embodied my invention, I do not desire to be limited to the details of such disclosure as changes in form and proportions ,may be made as ,circumstances require, without departing from the spirit of my invention within the broad scope of the appended claim.

What I claim as new and novel is:

A machine for slitting sheet material fed from a supply roll, comprising a main frame adapted to support a roll of supply material, a plurality of idler rollers rotatably supported by said main frame adapted to guide said material, a tilting frame pivotally supported by said main frame, means on said tilting frame for guiding said sheet material as it passes from said idler rollers, a cutter shaft provided with a plurality of spaced circular cutting knives rotatably supported on said tilting frame, means for rotating said cutter shaft carried by said tilting frame, an adjustable pressure shaft rotatably supported by said tilting frame and adapted to bear against the blades of said cutter shaft, said pressure shaft being provided with a surface of scorable material adapted to be scored by said blades whereby material passing between said cutter and pressure shafts is slit thereby, a rotatable take-up shaft supported by said main frame adapted to receive a core of scorable material whereon the slit material is to be wound, said tilting frame being adapted to be tilted toward said take-up roller and to score said core material thereon and to be tilted away from said take-up roller during the operation of the machine to maintain the supply material in taut condition as it is wound on said take-up roller.

ALFRED R. GLASSMAN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 340,373 Shaw Apr. 20, 1886 492,871 Liddell Mar. 7, 1893 575,821 Blake Jan. 26, 1897 669,066 Allen Mar. 5, 1901 837,340 Post Dec, l, 1906 1,466,947 Evans Feb. la, 1922 1,437,398 Cameron et al. Dec. 5, 1922 2,312,550 Hornbostel Mar. 2, 1943

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