US1937360A

US1937360A - Slitting machine

Info

Publication number: US1937360A
Application number: US120616A
Authority: US
Inventors: Leland S Rosener
Original assignee: Fibreboard Products Inc
Current assignee: Fibreboard Products Inc
Priority date: 1926-07-06
Filing date: 1926-07-06
Publication date: 1933-11-28
Anticipated expiration: 1950-11-28

Description

NOV. 28, 1933. RQSENER 1,937,360

SLITTING MACHINE Filed July 6. 1926 s Sheets-Sheet 2 //V VIE N701? Leland .5: Fosener M: Afibrney.

Nov. 28, 1933.

Filed .July 6 1926 s. ROSENER SLITTING MACHINE 5 Sheets-Sheet s J (Mif/fs A fforney Nov. 28, 1933. L. s. ROSENER SLITTING MACHINE Filed July 6, 1926 5 Sheets-Sheet 4 r e mow m? vdw Nn 6 1 B Nov. 28, 1933. 1 5 ROSENER 1,937,360

r VSLIT'QIING MACHINE Filed July 6. 1926 '5 Sheets-Sheet 5 Patented Nov. 28, 1933 UNITED. STATES 7 1,937,360 sm'r'rme MACHINE Leland s. Rosener, San Francisco, Calif., assignor, by mesne assignments,'to Fibreboard Products Inc., San Francisco, Calif., a corporation of Delaware Application July '6, 1926. Serial No. 120,616 a 24 Claims.

My invention relates to mechanism for splitting a sheet of material into strips of predetermined width and one of the objects of the invention is the provision of a machine for splitting into narrower strips a relativelywide strip or web of paper or fiber board.

Another object of the invention is the provision of a machine of the character described which may be quickly and readily brought into accurate adjustment and which embodies various refinements of setting and adjustment so that its use is economical and convenient.-

Another object of the invention is the provision of a slitting machine of the character described having a large capacity and which may be set in the line between the silicate rolls and the transverse cutting machine, to cooperate with the latter in reducing the relatively wide web of layered paper board to pieces of definite width and length.

My invention possesses other objects and features of advantage some of which with the foregoing will be set forth in the following description of my invention which is illustrated in the drawings forming part of the specification. I do not limit myself to the showing made by the said description and drawings as I may adopt variant forms of my invention within the scope of the claims.

Referring to the drawings:

[Figures 1a and 1b together constitute a plan viewof my slitting machine; and- Figure 2 is an end elevation; the direction of the view. being indicated by the arrow 2 in Figure 1b. Figures 3a and 31) together constitute a front elevation of my slitting machine, a portion of the structure in Figure 3b-being shown as broken away to. disclose the underlying parts. Figure 4, Ba detail in side elevation, showing the adjustable frames of my device. Figure 5 is a transverse vertical sectional view taken thru a portion of the structure shown in Figure 3b inwhich figure the plane of section is indicated by the line 55.

In broadly descriptive terms, the slitting mawith a number of slideways, in each of which is disposed at least one and preferably two indee pendently adjus able units, each comprising a frame in which two slitting cutters are mounted together with means for adjusting one of the cutters relative to the other and means for rotating the cutters. A calibrated scale is arranged in con-, nection withveach slideway and means are provided for the accurate setting of each of the units in accordance with the desired scale reading sothat the distances between the. several cutters may be very closely regulated to cut the web into strips which are accurately sized. Since there is'always more or less transverse weaving or shifting of the web as it leaves the squeeze rolls after passing thru the silicate rolls, means are provided for a 60 compensating movement of the entire table.

More particularly my slitting machine comprises a table 2 carried on the pivotally arranged legs 3 and thereby adapted to adjustment in a direction transverse to the web of material fed across the table. This adjustment is controlled by a screw spindle 4 threaded thru a pivotally mounted nut 6 arranged in the wall or other fixed structure '1 and at its other end being journaled in the pivotally mounted nut Barranged in one 7 end of the table. One end of the spindleis provided with a sprocket wheel 9 over which runs a chain 11 with which the spindle may be turned. It is contemplated that the upper surface of the table over which the web passes will be .well ele- 76 vated above the floor and therefore the chain 11 extends downwardly a sufiicient distance so as to be readily accessible for a workman below the table. I g

The table is formed with a plurality of slideways 12; and in the present example, there are shown three such slideways. In each of these slideways is mounted for slidable movement therein, a cutting unit, of which the main casting is shown. in Figure 4. This casting comprises a main frame body 13 provided with slides or flanges 14 adjusted to form a sliding fit in the slideways 12 with the upper surface of thevmain body 13 substantially flush with the top of the table as indicated in Figure 3b. Extending from one end of the body 13 is the cantilever arm 16 provided at its end with a'vertical slideway 17 in which is slidably mounted ablock 18, provided with an adjusting screw 19 operated by the hand wheel 21. The blockis fixed in position after adjustment by the nuts 22. The block 18 is provided atits lower end with a bearing 23 in which is journaled a shaft 24, and in the base of the cantilever arm is arranged a bearing 26 in which is journaled a shaft 2'7 connected to the shaft 24 by the shaft 28 and universal joints 29 and 31. The universal'joint 31 is splined upon the end of the shaft 24 so as to permit axial movement therebetween, and axial v adjustment of the shaft 24 is secured by a clamp collar 32 threaded upon one side of the bearing 23. and embodying a groove in which is seated a flange 33 which is fixed on the shaft 24. On the outer end of the shaft 24 is fixed a cutting blade 34 preferably having a beveled edge as shown) It the bearings 36 and'37 in which is journaled a shaft 38 on the outer end of which is also fixed a 1 cutting blade 39. The shaft 38 is journaled so that no axial movement occurs and the diameter of the cutting blade .is such that the periphery extends slightly .abovethe plane of the table-top so asto'cut thru the material passingthereover.

In working relation the upper cutter 34 is ad- 7 justedaxially so that it laps over thelower cutter 39' slightly, the bevel on the blades being in the opposite direction so that both blades cut on thesame line'in oppositon toeach other. The 2 clamp collar 32 foraxial adjustment and the adjusting screw 19 for vertical adjustment permit the closest regulation of the upper cutter 34 with respect tothe lower cutter 39, so that by-their mutual action a single slit is formed the material passing over the table top and between the two blades ofthe unit.

By reference to the plan view in Figures la and lb it will be noted that in each slideway 12 there are twov frames or units of the character 'just. described and that these units are so arsired positions so that on wide webs each pair of cutting blades is given its maximum range topermit the cutting of the web into strips of any desired width or into strips the width of each of 40 which is different than the other strip.

, Unitary means are provided in each unit for connected for rotation togetherby the gears 41. Also fixed on the upper shaft 2'? is a gear 42 connected by gears 43 with thegear44 on the shaft ,of the motor 46, which thus drives 'thecutter ,providing the desired" shafts thru 'a gear train 4 reductioninspeed. v

Meansare provided, for. ca ibrating the posi- -tions of each of the .units with'reference to the other units and foraccurately setting and then holding. each pair of cutters in the desired posi-' tion. Extending longitudinally across the table 'within each slideway is a bar 51 conveniently:

formed of a piece of angle iron, the vertical flange of which is finished and provided with graduations .52. Each of these barsis carefullyprepared and set so that the corresponding graduations on all of the'bars are in line. Releasably .60 secured by the screws 53 to the bottom of each unit frame adjacent one end is an angle block 54 having a threaded extension-56 adaptedlto pass thru the lug 5'7 projecting. from the bottom of the frame and to be fixed-inthe lug. bythe,

'65 adjusting nut 58 on either side thereof. Threaded into the. angle piece 54 is a screw 59 providedwith ashoe fil adapted to engage the scale bar 51., Inorder tor prevent defiectionof the scale bar under the pressure of the screw 59 a'backing 7c flange 62 is fixed on the angle 'pice54 to extend I downwardly behind thescale bar and furnish it support. Also fixed on, the angle piece 54 is a handle;;'63, by which the frame may be moved along the slideway when the screw 59 is loosened.

'35 The upper vertical; edge of this handle together.

- and from the body of the frame, a shaft journaled in the frame body, a second shaft journaled in driving the shafts 27-and 38, these shafts being 1 with the adjacent vertical edge of the angle piece 54, is squared off to provide a pointer edge 64 for setting on the graduations of the scale bar. An upwardly extendinglug 66 is also provided, the face of which is vertically alined with the pointer edge. in order to place each frame in proper position, the screw 59 is loosened to release the shoe from the scale bar and permit the sliding of the frame to approximate position The screws 53 are next loosened slightly and also the nut 58 so that the pointer edge 64 may be located exactly over the required graduation. The screw 59 is then tightened up to clamp the angle piece 54 on the scale bar, and by adjustment of the nut 58 the frame is moved so as to bring the lower cutter 39'back closely adjacent the lug 66,

at which time the screws 53 arejagain tightened.

If this operation has been carefully attended to the cutting edge of both cutters are vertically alined with the pointer edge 64 and the desired marking on the scale bar. Each of the units may be thus adjusted to the desired positions with the cutters accurately placed so that in a machine similar to that illustrated inthe drawings and having three ways each with two .units, the

web may be trimmed on the edges and slit into ,cluding a cantilever arm, a bearing mounted on said cantilever arm for movement thereon toward eluding a cantilever arm, a bearing mounted on" said cantilever arm for movement toward and fromthe body of the frame, a shaft journaled in the framebody, a second shaft journaled in the 125 movable bearing, cooperating cutters fixed for rotation with said-shafts, a thirdshaft journaled on saidcantilever arm, unitary means for driving the first and third shafts, and ajmiversal coupling means connecting the second and third shafts.

4. A- slitting machine comprising a table having a plurality of slideways, a frame slidably mountedin each slideway, a'- pair of tangentially cooperating circular cutters journaled in each frame and approximatelytangent to the plane of the table, and means for rotating the cutters. '5. A slitting machine comprising a table having a plurality of slideways, a pair .of frames slidably mounted in each slideway, each frame including a cantilever'armextending toward the arm 'of the companion frame above the plane of the table, a pair.v of tangentially cooperating circular. cutters journaledin eachframeand approximately tangent to the-plane of the table} one-of said cutters being on the body of the frame and the other on the cantilever arm, and means for rotating the'cutters.

, 6. A slitting machine comprising a table havmg a plurality. of slideways, a pair of frames 150 i one of said cutters being on the body of the frame and the other on the cantilever arm, a scale for evaluating the position of each pair of cutters, and means for rotating the cutters.

7. A'slitting machine comprising a table having a plurality of slideways, a pair of frames slidably mounted in each slideway, each frame including a cantilever arm extending toward the arm of the companion frame above the plane of the table, a pair of tangentially cooperating circular cutters joumaled in each frame and approximately tangent to the plane of the table, one of said cutters being on the body of the frame and the other on the cantilever arm, means for radially adjusting one of the cutters on each frame relative to the other, and means for rotating the cutters.

8. A slitting machine comprising a table having a -slideway therein, a frame movable in said slideway and having a cantilever arm extending above the table, a bearing slidably mounted on said cantilever arm for movement toward and from the table, a shaft joumaled in said frame,

a second shaft joumaled in said movable b'ear-.

ing, meansfor rotating said shafts, and tangentially cooperating circular cutters fixed for rotation with said shafts and approximately tangent to the plane of the table.

9. A slitting machine comprising a table, a slitting unit frame slidably mounted on said table, a scale bar fixed on said table, a block having a pointer edge and adjustably arranged on said frame, said block being slidable along said scale bar, and means for clamping the block to the scale bar.

I in alinement, a block having a pointer edge and,

10. A slitting machine comprising a table, a plurality of pairs'of slitting unit framesslidably arranged on' said table, a graduated scale bar fixed on the table adjacent each pair of frames, said bars having their corresponding graduations adjustably arranged on each frame, and means for clamping each block to its associated scale bar;

11. A slitting machine comprising. a table, a slitting -unit frame slidably mounted on said table, a pair of cutters joumaled for tangential cooperation in said frame, a scale bar fixed on said table adjacent said frame, a. block having a pointer edge, means for clamping the blockat desired positions against said scale bar, and means interposed between frame and block for adjusting the frame to aline the cutters with the pointer edge'of the block. I

v 12. A slitting machine comprising a table pivotally mounted for movement in a direction trans-.

verse of a web of material to be slit, a frame movably disposed on said table, a pair of shafts'journaled in said frame, cutters arranged on said shafts, means for driving said shafts, and meansfor adjusting saidwtable in directions axially of said shafts; Y

13. A slitting machine comprising a table pivotallymounted for movement in a direction transverse of a web of material 'to be slit, a frame movably disposed on said table, a pair of shafts joumaled in said frame, cutters arranged on said shafts, means for driving said shafts, a fixed element, and means interposed between the fixed 1 and asingle feed means arranged to carry material to the several pairs of shears.

15. In a multiple shear, a plurality of pairs of oppositely arranged shears positioned side by side, so as to simultaneously engage material,

each shear comprising a pair of cooperating cutters and each pair of shears being relatively stationary with respect to another pair'of shears, but eachshear in a pair being adapted for movement relative to the other shear in such pair.

16. A slitting machine comprising a table, a slitting unit frame slidably mounted on said table, a scale bar fixed on said table, a block having a pointer edge and adjustably arranged on said frame, said block being slidable along said scale bar, means for clamping the block to the scale bar, and means for adjusting the' relative position between the block and frame after the block is clamped.

17. In a multiple shear, a plurality of pairs .of oppositely arranged frames positioned side by side, a plurality of cooperating cutters mounted on each frame so as to simultaneously engage material, each pair of frames being relatively stationary with respect to another pair of frames, but each frame in a pair being adapted for movement relative to the other frame in such pair. a

18. In a multiple shear, a table, a plurality of frames movably disposed on said table, a plu-- rality of cutters mounted on each frame so as to simultaneously engage material, a motor upon each frame and movable therewith, and inde-'- pendent driving means connecting the motors with the cutters upon corresponding frames.

19. In a multiple shear, a table, a plurality of rows of frames, the frames of each row being arranged in tandem and movably disposed on said table, a plurality of cutters mounted on eachv frame so as to simultaneously engage material,

- a motor upon each frame and movable therewith,

and independent driving means connecting the motors with the cutters upon corresponding frames.

20. A slitting machine comprising a frame, a pair of shafts journaled in said frame, universal joints interposed in one of said shafts, cutters arranged on said shafts, means for driving said shafts, means for moving a portion of the jointed shaft from and toward the other, and means for axially adjusting one of said shafts relative to the other.

21. vA slitting machine comprising a frame, a pair of shafts joumaled in said frame, universal joints interposed in one of said shafts, cutters arranged on said shafts, means for driving said shafts, means for moving a Portion of the jointed means for driving said shaft, and means for adtion.

a so

justing said table in directions axially of said shaft.

23, A slitting machine comprising a table, a

plurality of pairs of slitting unit frames movably arranged on said table, a graduated scale fixedly mounted adjacent each pair of frames, said scales having their corresponding-graduations in alinement, a pointer mounted on each frame, and means for clamping each v 24.-'In a multiple shear, a.

I 'on-be frame in desired posiplurality, of pairs roamedof oppositely arranged frames positioned side -by side, a plurality of cutters on each frame and mounted to provide a shear on said frame, so as ,to simultaneously engage material, each pair of frames and the shears thereon being relatively "s. ROSENER.