US3831502A

US3831502A - Slitter scorer apparatus

Info

Publication number: US3831502A
Authority: US
Inventors: M Tokuno
Original assignee: Rengo Co Ltd
Current assignee: Rengo Co Ltd
Priority date: 1972-02-25
Filing date: 1973-01-29
Publication date: 1974-08-27
Anticipated expiration: 1991-08-27
Also published as: IT976043B; AT336988B; DE2306296A1; FR2173613A5; DE2306296B2; ATA164673A; SE414004B; NL7216049A; DE7304858U; CA974165A; CH560589A5; GB1382729A

Abstract

The present disclosure is directed to a slitter scorer apparatus which slit and flutes, along a running direction, long and flat materials which are successively delivered. More particularly, the present disclosure is concerned with a slitter scorer apparatus comprising a rotary shear which cuts the flat materials at a right angle direction with their running direction, two slitter scorers which are vertically placed downstream of the rotary shear, a front guide which guides the materials from the exit of the rotary shear to either entrance of the two slitter scorers or to an opening entrance between the two slitter scorers, and a rear guide which guides the material from either exit of the two slitter scorers or from an opening entrance between the two slitter scorers to the next process step.

Description

0 United States Patent 1 1 [111 3,831,502 Tokuno Aug. 27, 1974 [54] SLITTER SCORER APPARATUS 3,408,886 11/1968 David 83/9 [75] Inventor: Masateru Tokuno, Nishinomiya, 3,489,043 1} 1970 Dent 83/9 J apan Primary Examiner l. M. Meister Asslgneel go Osaka, Japan Attorney, Agent, or FirmStewart and Kolasch, Ltd.

[22] Filed: Jan. 29, 1973 21 Appl. No.: 327,572 [571 ABSTRACT The present disclosure is directed to a slitter scorer 30 apparatus which slit and flutes, along a running direc- 1 Foreign Application Priority Data tron, long and flat materials whlch are successively de- Feb. 25, 1972 Japan 1 47-19443 livered. More particularly, h present di l i Apr. 5, 1972 Japan 47-34700 concerned with a slitter Scorer apparatus comprising a rotary shear which cuts the flat materials at a right [52] US. Cl 93/1 G, 83/9, 83/ 12, angle direction with their running direction, two slitter l I C 83/106 83/302 83604 93582 R scorers which are vertically placed downstream of the [g i F zt- Lf. B26d 3/08 rotary shear a front guide which guides the materials 8] 0

Search

93,1 from the exit of the rotary shear to either entrance of 83/9 3021 304 the two slitter scorers or to an opening entrance between the two slitter scorers, and a rear guide which [56] References and guides the material from either exit of the two slitter UNIT STA PATENTS scorers or from an opening entrancebetween the two 1,959,424 5/1934 Hawkins 93/1 G slitter scorers to the next process step 2,369,253 2/1945 Robinson et al.... 83/304 X 2,985,223 5/l96l Thorn 93/58.2 R 24 Claims, 27 Drawmg Flgures Patamzowszmu 39-91502 SHEET (11, 0f 12.

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PArfimenmw 3.881.502 V sum uu0F 12 2 215 2 2251504 216 Z I 217 1 212 215 225 2251 212 I Z 2271 216 Z2? Z5 2\ I G 7 21 Z17 Z76 PATENTEBNBZTW 3.831.502

saw us or 12 H 1 ll PATENTED 51192 71974 sum new 12 SLIITER SCORER APPARATUS BACKGROUND AND SUMMARY OF THE INVENTION Conventionally, these types of slitter scorer apparatus have been subjected to reduction in production efficiency when changing the order, since the running operation of the corrugated boards is suspended thereby to move, for adjustment, the slitting edges of the slitter scorer or the fluting edges thereof to the respective predetermined position when the position order for the slitting width or fluting operation is required to change. Or when the conventional type of slitter scorer apparatus is employed, consisting of several sets of slitter scorers placed in radial shape between opposed frames which can rotate around a horizontal shaft, and a rotary shear positioned in front of them, the corrugated boards are cut by the rotary shear at a right angle to the running direction thereof after having reduced the running speed of the corrugated speed. The cut ends of the corrugated boards which are delivered sequentially after the cutting operation thereof are approached towards the slitter scorer. During their approaches, the desired slitter scorer, which was adjusted in advance, from among several sets of the slitter scorers positioned in the radial shape is rotated to a given position for corresponding operation.

An object of the present invention is to provide a slitter scorer apparatus which can immediately change the slitting and fluting operation along the running direction of the long and flat materials thereby performing the slitting and fluting operation without suspending the running operation of the long and flat materials which are delivered successively, or without reducing the running speed thereof. Other objects and further scope of applicability of the present invention will become apparent from the detailed description given hereinafter; it should, be understood, however, that the detailed description and specific embodiments, while indicating preferred embodiments of the invention are given by way of illustration only. since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only and thus are not limitative of the present invention and wherein,

FIG. 1 is a schematic side view showing one preferred embodiment in accordance with the present invention, with a double facer and a cut off machine being shown for reference,

FIG. 2 is a side view showing a rotary shear in a slitter scorer apparatus as shown in FIGS. 1 and 21,

FIG. 3 is a rear view showing the rotary shear of FIG.

FIG. 4 is a front view of the slitter scorer in the sliter scorer apparatus as shown in FIGS. 1 and 21, showing the interior thereof without the gear cover,

FIG. 5 is a side view of the slitter scorer as shown in FIG. 4, showing a bearing case wherein the gear cover and a motor are omitted and one portion of the gears is cut out,

FIG. 6 is a schematic plane view showing the slitter scorer as shown in FIG. 4,

FIG. 7 is a schematic bottom view showing the slitter scorer as shown in FIG. 4,

FIG. 8 is a side view of a mechanism, which is partly omitted, showing the slitter scorer apparatus, as shown in FIG. 1, with the rotary shear, a front guide and a rear guide being omitted,

FIG. 9 is a rear view of the mechanism, which is partly cut out, as shown in FIG. 8,

FIG. 10 is an illustrating view showing a condition where the slitter scorer is fixed to struts,

FIG. 11 is a plane view showing the top portion of the mechanism of FIGS. 8 and 22,

FIG. 12 is a side view showing a front guide of the slitter scorer apparatus as shown in FIG. 1,

FIG. 13 is an air pressure circuit diagram of the slitter scorer apparatus as shown in FIG. 1,

FIG. 14 is an oil pressure circuit diagram of the slitter scorer apparatus as shown in FIG. 1,

FIGS. 15 and 16 are respectively and electric circuit diagram of the slitter scorer apparatus as shown in FIG.

FIG. 17 is an illustrating view showing memory elements,

FIG. 18 is an illustrating view showing AND logical elements,

FIG. 19 is an illustrating view showing OR logical elements,

FIG. 20 is an illustrating view showing a condition of the rotary shear in the order change preparing operation,

FIG. 21 is a schematic side view showing another preferred embodiment of the present invention, with the double facer and the cut off machine being shown for reference,

FIG. 22 is a side view of a mechanism, which is partly omitted, showing the slitter scorer apparatus, as shown in FIG. 21, with the rotary shear, the front guide, and the rear guide being omitted.

FIG. 23 is a rear view of the mechanism, which is partly cut out, as shown in FIG. 22,

FIG. 24 is an air pressure circuit diagram of the slitter scorer apparatus as shown in FIG. 21,

FIG. 25 is an oil pressure circuit diagram of the slitter scorer apparatus as shown in FIG. 21, and

FIGS. 26 and 27 are respectively an electric circuit diagram of the slitter scorer apparatus as shown in FIG. 21.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiment, wherein the apparatus of the present invention is placed between the double facer of the corrugated machine for manufacturing the corrugated boards, and the cut off machine thereof, is described hereinafter.

Referring now to FIG. 1, the slittcr scorer apparatus comprises the rotary shear 1, the front guide 501, two

slitter scorers

2 and 2, and the rear guide 601, and in the two

slitter scorers

2 and 2 are combined various mechanisms as described later.

The rotary shear 1 is provided with an upper roll 14 and a lower roll as shown in FIGS. 2 and 3. Cutting edges 141 which are sequentially provided with angular edges are projected along the roll axial direction on the circumferential surface of the upper roll 14. The narrow band-like cutting edge receiving portion 151 which is advantageously made of urethane rubber which is capable of sufficiently receiving the depression of the cutting edges 141 is secured onto the circumferential surface of the lower roll 15. The upper roll 14 and the lower roll 15 are vertically placed in parallel between

parallel struts

11 and 11 erected at both ends of the base 12. Each strut 11 is provided with a quadrilateral opening portion 111 at its upper portion. The

opening portions

111 and 111 of the

struts

11 and 11 are mutually opposed. A pair of

arms

13 and 13 which are almost in parallel are placed on both outer sides of the

struts

11 and 11, and one end 131 of each arm rod 13 is rotatably fixed to the strut 11, and the middle portion 132 thereof and the other end 133 thereof may be elevated as they are confronted with the opening portion 111 of the strut 11. A horizontal member 134 is secured to the other ends 133 and 133 of the

arm rods

13 and 13. The shafts 142 of the upper roll 14 are projected outwardly of the struts l1 and 11 from the

opening portions

111 and 111 of the strut and are rotatably mounted on the

middle portions

132 and 132 of the arms. The shafts 152 of the lower roll 15 are rotatably fixed to the

struts

11 and 11.

Gears

161, 162, 163 and 164 are provided on the exterior side of the strut 11 on the one side, and the gear 161 is rotatably fixed to the arm 13 with its axis line and the rotation axis line of the arm rod 13 arranged in alignement. The gear 162 is rotatably fixed to the strut 11 and the gear 163 is secured to the shaft 142 of the upper roll 14. The gear 164 is secured to the shaft 152 of the lower roll 15. The

gears

161 and 162 of the same pitch circle are in mutually engagement. The

gears

163 and 164 are respectively of the same pitch circle. The gear 163 is engaged with the gear 161, while the gear 164 is engaged with the gear 162. By the rotation of the gear 162, the cutting edges 141 of the upper roll 14 and the cutting edges receiving portion 151 of the lower roll 15 meet on a vertical face which contains the axis of the upper roll and the axis of the lower roll. A sprocket 171 is coaxially secured to the gear 162. A sprocket 172 is placed below the sprocket 171 and is rotatably fixed to the strut 11. An endless chain 173 is entrained around the

sprockets

171 and 172 and is expanded by a tension sprocket 174 mounted on the strut 11. The shaft 1721 of the sprocket 172 is connected with the output side of a change gear 191 secured to the top face of the base 12. A motor 192 is connected with the input side of the change gear 191. A wheel 193 and a sprocket 194 are secured to the shaft 1721 between the change gear 191 and the strut 11 on one side. Another sprocket 195 is rotatably provided in front of the sprocket 194, and the endless chain 196 is entrained around the

sprockets

194 and 195. The shaft 1951 of the sprocket 195 is projected to the exterior side of the strut 11 and fixedly carries a handle 197. A reinforcing frame 112 is secured to the top end portion of the

struts

11 and 11,

and the

struts

181 and 181 are erected on the frame 112.

Rods

182 and 183 are vertically placed between each strut 181. The top end of the rod 182 on the upper side is rotatably fixed to the respective top end portion of the

struts

181 and 181, while the lower end thereof is rotatably connected with the top end of the rod 183 on the lower side by a pin bar 184. Furthermore, the lower end of the rod 183 on the lower side is rotatably connected with the top face of the horizontal member 134 between the

arm rods

13 and 13. The length of the

rods

182 and 183 is determined to make the

rods

182 and 183 become straight when the

arm rods

13 and 13 have descended until the cutting edges 141 of the rotating upper roll 14 is sufficiently depressed on the cutting edge receiving portion 151 of the rotating lower roll 15. The tip end of the piston rod 1851 on the air cylinder is rotatably engaged with the pin bar 184 which couples the rod 182 with the rod 183, while the cylinder head 1852 of the air cylinder 185 is rotatably connected with the frame 112. The stroking operation of the piston rod 1857 on the air cylinder 185 is determined to allow the

rods

182 and 183 to become a straight line when the piston rod 1851 has been projected, and is determined when the piston rod 1851 has been retracted, so that the

arm rods

13 and 13 may be raised enough to let the materials pass between the upper roll 14 and the lower roll 15. A proximity switch APSl is secured to an arm 13 on one side, while an iron piece F1 which actuates the switch APSl is secured to the shaft 142 of the upper roll 14. The iron piece F 1 is located so that it may approach the proximity APSl and may put the switch to an operating condition when the cutting edges 141 try to leave the cutting edge receiving portion 151 after having depressed upon the cutting edge receiving portion 151 while the upper roll 14 is rotated in the direction of an arrow X as shown in FIG. 2 and the lower roll 15 is rotated in the direction of an arrow Y as shown in FIG. 2.

As apparent from FIGS. 4 to 7, the slitter scorer 2 is provided with an upper slitting roll 221 and a lower slitting roll 222 which are vertically provided, and an upper fluting roll 223 and a lower fluting roll 224 which are vertically provided behind downstream of the rolls 221 and 222. The upper slitting roll 221 is provided with circular upper cutting edges 2211, while the lower slitting roll 222 is provided with circular lower slitting edges 2221 which make a pair with the each upper cutting slitting edges 2211. The upper fluting roll 223 is provided with circular male fluting edges 2231, while the lower fluting roll 224 is provided with circular female fluting edges 2241 which make a pair with the each male fluting edge 2231. The upper slitting edges 2211, the lower slitting edges 2221, the male fluting edges 2231, and the female fluting edges 2241 are respectively divided into two portions. Rolls are inserted into the divided two portions and at the places where they meet they are clamped by

roll clamping bolts

225 and 225, whereby the edges are scured to the respective desired position. The

rolls

221, 222, 223 and 224 are placed between opposing thick

quadrilateral plates

21 and 21.

Bearing cases

23 and 23 are rotatably engaged with the upper half portion of each plate 21. Bearings 231 are incorporated within each bearing case 23, being deviated from the center of the bearing case.

Bearing cases

24 and 24 are fixedly engaged with the lower half portion of each plate 21 and bearings 241 are incorporated within each bearing case 24. The

upper slitting roll 221 are supported by a pair of

bearings

231 and 231, the lower slitting roll 222 by a pair of

bearings

241 and 241, the upper fluting rolls 223 by another pair of

bearings

231 and 231, and the lower fluting roll 224 by another

bearings

241 and 241.

Gears

251, 252, 253 and 254 of the same pitch circle are provided on the exterior side of the plate 21 on one side. The gear 251 is secured to the shaft 2212 of the roll 221, the gear 252 to the shaft 2222 of the roll 222, the gear 253 to the shaft 2232 of the roll 223, and the gear 254 to the shaft 2242 of the roll 224. A small gear 27 is simultaneously engaged with the

gears

252 and 254. A large gear 28 is secured to the shaft 271 of the small gear 27. Both ends of the shaft 271 are rotatably fixed to a gear cover 305, which is secured to the plate 21 on the one side and to the plate 21. A motor 31 is secured to the exterior face of the gear cover 305. A pinion gear 29 which is secured to the shaft 301 is engaged with the large gear 28. A cover 306 is also secured to the plate 21. One side end of the each bearing case 23 fixedly carries a gear 261 which is coaxial with respect to the bearing case 23. A shaft rod 262 is rotatably fixed, above the opposite gears 261 and 261, and gears 261 and 261, to the

plates

21 and 21 and one side end of the shaft rod 262 is projected to the outer side 211 of the plate 21. A pinion gear 263 which is engaged with a gear 261 is secured to each shaft rod 262. A worm wheel 264 is secured to the single side end of each shaft rod 262 and is engaged with the worm 265. The worm 265 is rotatably supported by a worm bearing 266 secured to the outer face 211 of the plate 21 and lever 267 is secured to the worm 265. The bearing

cases

23 and 23 are rotated by the rotation of

rod levers

267 and 267 thereby causing the gear 251 to be engaged or disengaged with the gear 252, or causing the gear 253 to be engaged or disengaged with the gear 254. At the same time, the upper slitting edges 2211, may approach towards or separate from the lower slitting edges 2221, while the male fluting edges 2231, may approach towards or separate from the female fluting edges 2241. A L-shaped. in section. gear fixing member 302 is provided. covering the circumferential edge portion of the gear 261 which is secured to each bearing case 23 engaged with the plate 21 on the one side. Each gear fixing member 302 is rotatably engaged with the plate 21 thereby causing the rod levers 303 and 303, which are spirally engaged with the gear fixing member 302, to closely contact or separate from the gear 261. Supporting

rods

304 and 304 are secured vertically in parallel to the

plates

21 and 21. Guiding rolls 214 and 214 are vertically and rotatably mounted on each side end portion of the inner side 212 on each plate 21.

Parallel shaft rods

216 and 216 are rotatably fixed between the corners on both sides of one plate 21 and the corners on both sides of the other opposing plate 21. Pinion gears 215 and 215 are secured to both end portions of each shaft rod 216.

As shown in FIGS. 8 and 9, two

slitter scorers

2 and 2 are vertically provided between the opposing struts 32 and 32 erected at both ends of the truck 31. Each strut 32 is provided with a vertically long quadrilateral opening portion 321, and the

plates

21 and 21 of each slitter scorer 2 are engaged into the opening

portions

321 and 321 of the struts. The height of the opening portion 321 is vertical almost 4 times as long as that of the plate 21. A pair of vertical guiding

rods

323 and 323 are secured respectively to the inner side faces 322 and 322 of the opening portion 321 of each strut 32. The plate side edge portion-217 of each slitter scorer 2 is elevatably engaged between the guiding

rods

323 and 323. Each guiding roll 214 of each slitter scorer 2 rolls in contact with the guiding rods 323. A rack 324 is secured, in parallel with the guiding rod 323, respectively to the inner side faces 322 and 322 of the opening portion 321 of each strut 32. The pinion gear 215 of each slitter socrer 2 is engaged with the rack 324 (see FIGS. 8, 9 and 10). The track 31 is placed behind the rotary shear 1 and at a right angle with the running direction of the corrugated board 7 and each wheel 31 1 located at four comers are placed on its corresponding rail. Each rail 331 is installed on a pedestal 33 so that the running direction of the corrugated board 7 may cross at a right angle with the rail. An oil cylinder 34 with a double cushion for alignment is rotatably placed above one side end portion of the pedestal 33. The tip end of the piston rod 341 is rotatably connected with the side face of the truck 31. A shaft 352 is rotatably fixed to the middle of the top end portion of the

plates

21 and 21 on the upper slitter scorer 2, while a pair of

pawls

35 and 35 are secured to both end portion of the shaft 352. A circular groove 351 is formed on each pawl 35. A vertical screw rod 36 is elevatably engaged with the middle portion of the upper horizontal member 325 of the each strut 32 as shown in FIGS. 8, 9 and 11. A pin bar 361 is secured to the lower end of the screw rod 36, the groove 351 on the pawl 35 of the upper slitter scorer being able to engage with the pin bar. An axial key way 363 is provided on the screw rod 36 and a key 326 is slidably engaged with the key groove 363 so that screw rod 36 may be elevated without rotating along the axial swivel. The key 326 is secured to the upper horizontal member 325. A bevel gear 37 with a female screw hole is spirally engaged with the screw rod 36 which is projected to the top face of the upper horizontal member 325 of each strut 32, and the bevel gear 37 is supported by a thrust bearing 371 which is seated on the horizontal member 325. Furthermore, a gear box 38 is secured to the top face of the upper portion horzontal member 325 of each strut 32. The bevel gear 37 is incorporated within the gear box 38, and the screw rod 36 extends through the gear box 38. A horizontal shaft rod 39 is rotatably supported by the

gear boxes

38 and 38 secured to the

struts

32 and 32. A bevel gear 40 is secured to the end of the horizontal shaft rod 39 projected into each gear box 38 so that the bevel gear may be engaged and rotated with the bevel gear 37. A horizontal frame 41 is fixedly bridged between the upper portion

horizontal members

325 and 325 and the gear box 42 is secured on the horizontal frame 41. The horizontal shaft rod 39 projects through the gear box 42 and is rotatably supported by the gear box 42. Within the gear box 42, a worm wheel 422 is secured to the horizontal shaft rod 39 and a worm 431 is engaged with the worm wheel 422. The worm 431 is secured to the shaft of the motor 43 which is secured to the gear box 42. Downwardly somewhat from the middle portion of the opening portion 321 of each strut 32,

stoppers

44 and 44 which determine the descending limit of the upper slitter scorer 2 and the ascending limit of the lower slitter scorer 2 are secured to the interior side faced 322 and 322 of the opening portion 321 (see FIG. 8). The

oil cylinders

45 and 45 are secured to the lower face of both ends of the truck 31. Each oil cylinder 45 is provided within the pedestal 33 and the piston rod 451 is elevatably engaged with the truck 31 so that it may be projected to the opening portion 321. The tip end of the piston rod 451 on each oil cylinder 45 is connected with the central portion of the lower end on the plate 21 of the lower side slitter scorer 2. The stroking operation by the piston rod 451 of the oil cylinder 45 is adapted to allow the lower slitter scorer 2 to elevate reciprocatingly from the lower end of the

strut opening portions

321 and 321 to the

stoppers

44, 44 and 44, 44. A horizontal plate 46 is placed between the upper slitter scorer 2 which is in contact with the

stoppers

44 and 44, and the lower slitter scorer 2 which is in contact therewith and is secured to the

struts

32 and 32. The plate 46 is placed so that the corrugated board 7 may be passed sufficiently between the plate 46 and the upper slitter scorer 2.

As understood from FIGS. 8 and 9, the proximity switch APS3 which determines the advance limit of the truck is secured on the top face of the wheel cover 332 secured on the pedestal 33, while the proximity switch APS2 which determines the retreating limit is secured on the top face thereof. The iron piece F23 is secured to the lower end portion of the strut 32. The iron piece F23 can set the switch APS3 into an operating condition in the maximum advance limit of the truck 31. While it can set the switch APS2 into an operating condition in the maximum retreating limit of the truck 31.

Also, the proximity switch APS14 is secured to the upper end portion of the strut 32 and the iron piece F14 of the upper slitter scorer 2 which is placed to the maximum ascending limit can set the switch APS14 into the operating condition. The proximity switch APS16 is secured to the lower end portion of the strut 32 and the iron piece F16 of the lower slitter scorer 2 which is placed in the maximum descending limit can set the swith APS16 into the operating condition.

The front guide 501 is provided with an intermediate guide. an upper guide 52, lower guide 53 and a feeding guide 54 as shown in H0. 12. The intermediate guide 51 comprises guiding

plates

511 and 512. The guiding plate 511 almost horizontally extends towards an exit IEX of the rotary shear 1 from a position which is confronted with the front end edge 46] of the plate 46 located between the upper and

lower slitter scorers

2 and 2 and reaches a place somewhat closer towards the rotary shear 1 from an intermediate point between the rotary shear 1 and the plate 44. The guiding plate 512 is provided upwardly of the guiding plate 511 and can guide the corrugated board 7, which is floated from the guiding plate 511, onto the plate 46. The guiding

plates

511 and 512 are secured to a frame 55 erected between the

struts

32, 32 and the rotary shear 1. The upper guide 52 comprises guiding

plates

521, 522 and 523 and an air cylinder 524 which is connected with a guiding plate 523. The guiding plate 521 extends obliquely downwardly to above the intermediate portion of the intermediate guide 51 towards the direction of the exit lEX of the rotary shear 1 from a position where it can be confronted with an entrance ZEN for the upper slitter scorer 2 which has been descended to the stoppers 44, and is secured to the frame 55. The guiding plate 522 is provided above the guiding plate 521 and can guide the corrugated board 7, which are floated from the guiding plate 521, to an entrance 2EN of the upper slitter scorer 2. The guiding plate 523 extends above the end portion, on the side of the rotary shear 1, of the intermediate guide 51 towards the rotary shear 1 from near the end portion, on the side of the rotary shear l, of the guiding plate 521. A shaft rod 525 is secured to the end portion lower face, on the side of the guiding plate 521, of the guiding plate 523, and both end portions of the shaft rod 525 are supported by bearings 526 and 526 (only one is shown in the drawing) secured to the side face of the frame 55. The end portion on one side of the shaft rod 525 projects from the bearing 526 and the top end of the arm rod 527 is secured to the projected end. The tip end of the piston rod 5241 on the air cylinder 524 is rotatably coupled with the lower end of the arm rod 527. The cylinder head 5242 of the air cylinder 524 is rotatably coupled with the side face of the top portion of the frame 55. When the piston rod 5241 is projected, the stroke operation of the piston rod 5241 is determined so that the end portion, on the side of the rotary shear 1, of the guiding plate 523 may be placed in a place D1 which is close to the end portion, on the side of the rotary shear 1, of the intermediate guide 51. When the piston rod 524] thereof is retracted, the end portion of the guiding plate 523 is adapted to be placed in a place U1 which is close to the upper end member 551 of the frame 55. The lower guide 53 comprises guiding

plates

531 and 532, and holding strap 533. The guiding plate 531 extends obliquely upwardly from a place which can be confronted with an entrance 2EN of the lower slitter scorer 2 which has ascended to the stoppers 44, towards the exit lEX of the rotary shear l, to below the end portion, on the side of the rotary shear 1, of the in termediate guide 51, and is secured to the frame 55. The guiding plate 532 is provided upwardly of the guiding plate 531, and can guide the corrugated board 7, which are floated from the guiding plate 531, to the entrance ZEN of the lower slitter scorer 2. Many holding straps 533 (only one is shown in drawing) are suspended upwardly of the guiding plate 531. The end portions thereof are placed on the guiding place 531 by self-weight. The feeding guide 54 comprises a guiding plate 541 and an air cylinder 542 which is coupled therewith. The guiding plate 541 extends near the end portion, on the side of the rotary shear l, of the intermediate guide 51 from the exit lEX of the rotary shear 1. The shaft rod 543 is secured to the lower face near the end portion, on the side of the rotary shear 1, of the guiding plate 541. Both end portions of the shaft rod 543 are rotatably fixed to the frame 55. The upper end of the arm rod 544 is secured to the end portion on one side of the shaft rod 543. The tip end of the piston rod 5421 of the air cylinder 542 is rotatably coupled with the lower end of the arm rod 544. The cylinder head 5422 of the air cylinder 542 is rotatably fixed to the frame 55. When the piston rod 5421 is retracted, the stroke operation of the piston rod 5421 is determined so that the end portion, on the side of the intermediate guide 51, of the guiding plate 541 may be placed in a place D2 which is somewhat higher than the end portion, on the side of the rotary shear l, of the lower guide 53. When the piston rod 5421 is projected, the end portion, on the side of the intermediate guide 51, of the guiding plate 541 is adapted to be placed in a place U2 which is somewhat higher than the descended position D1. The guiding plate in the each guide is all provided with a sifflcient width for guiding the flat mateials. Also, the end portion, on the side of the plate 46, of the guiding

plates

511 and 512 for the intermediate guide 51, the end portion, on the side of the slitter scorer 2, of the guiding

plates

521 and 522 for the upper guide 52, and the end portion, on the side of the slitter scorer 2, of the guiding plates 53] and 532 for the lower guide 53 are respectively idly engaged between the

struts

32 and 32 and are adapted not to allow the

struts

32 and 32 to be collided with the end portion of the each guiding plate if the truck 31 are moved.

As understood from FIG. 1, the rear guide 601 comprises an intermediate guide 61, an upper guide 62, a lower guide 63 and a feeding guide 64. The intermediate guide 61 comprises a guiding plate 611. The guiding plate 611 extends almost horizontally from near the rear end edge 462 of the plate 46 between the upper and

lower slitter scorers

2 and 2 towards the cut off machine 9 and reaches to a place located somewhat closer to the plate 46 from the intermediate point between the plate 46 and the cut off machine 9. The upper guide 62 comprises a guiding plate 621. The guiding plate 621 extends obliquely downwardly from the exit 2EX of the upper slitter scorer 2 which has descended to the stoppers 44 to above the end portion, on the side of the cut off machine 9, of the intermediate guide 61. The lower guide 63 comprises a guiding plate 631. The guiding plate 631 extends obliquely upwardly from the exit 2EX of the lower slitter scorer 2 which has ascended to the stoppers 44 until below the end portion, on the side of the cut off machine 9, of the intermediate guide 61. The guiding plate of the each guide is secured to the frame 65 erected between the

struts

32, 32 and the cut off machine 9. The feeding guide 64 comprises guiding

plates

641 and 642, and

air cylinders

643 and 644 which are coupled therewith. The guiding

plates

641 and 642 extends towards the cut off machine 9 from a place which is near and below the end portion, on the side of the cut off machine 9, of the lower guide 63. The guiding plate 641 and the guiding plate 642 are placed side by side and the end portions, on the side of the lower guide 63, of these guiding plates are rotatably fixed to the frame 65. The air cylinder 643 is placed below the guiding plate 641, while the air cylinder 644 is placed below the guiding plate 642. The piston rod 6431 of the air cylinder 643 is rotatably connected with the lower face of the guiding plate 641, while the piston rod 6441 of the air cylinder 644 is rotatably connected with the lower face of the guiding plate 642. Each cylinder head of the

air cylinders

643 and 644 is rotatably connected with the frame 65. The stroke operation of the piston rode 6431 (piston rode 6441) is determined so that the movement of the piston rod 6431 (piston rod 6441) may elevate the guiding plate 641 (guiding plate 642) to cause the end portion, on the side of the cut off machine 9, of the guiding plate 641 (guiding plate 642) to be confronted with the upper entrance 901 or the lower entrance 902 of the cut off machine 9. The feeding guide 64 is not restricted to the above mentioned example, but may consist of more movable small guides.

An air pressure circuit with respect to

air cylinders

185 and 185 in the rotary shear 1,

air cylinders

524 and 542 in the front guide 501, and

air cylinders

643 and 644 in the rear guide 601 is shown in FIG. 13. Referring now to FIG. 13,

numerals

91, 92 and 93 are respectively a spring off set type of 4-port 2-position solenoid operated valve, while

numerals

941 and 942 are respectively a 4-port 2-position solenoid-operated valve.

The feed-air ports are pipe-connected for the each valve, through a filter 951, a flow regulating valve with pressure gauge 952 and a lubricator 953, to a proper compressed air source. Each port, on the side of the cylinder, of the

valves

91, 92, 93, 941 and 942 is pipeconnected with the respective

corresponding air cylinders

185 and 185, 524, 542, 643 and 644. At a condition as shown in FIG. 13, the solenoid of the each solenoid-operated valve is demagnetized, the

piston rods

1851 and 1851 of the

air cylinders

185 and 185 are retracted, and the upper roll 14 of the rotary shear 1 is raised. Also, the piston rod 5241 for the air cylinder 524 is projected, and the guiding plate 523 in the upper guide 52 of the front guide 501 is descended to a place D1. The piston rod 5421 for the air cylinder 542 is retracted and the guiding plate 541 in the feeding guide 54 of the front guide 501 is descended to a place D2. Also, at a condition as shown in FIG. 13, the piston rod 6431 for the air cylinder 643 is projected. The piston rod 6441 for the air cylinder 644 is retracted and the guiding plate 641 in the feeding guide 641 for the rear guide 601 is ascended thereby to be confronted with the upper entrannce 901 for the cut off machine 9. The guiding plate 642 is descended thereby to be fronted with the lower entrance 902 for the cut off machine 9. The guiding

plates

641 and 642 can be properly confronted respectively with the

entrance

901 or 902 for the cut off machine through the operation of the

valves

941 and 942 by respectively exciting and demagnetizing solenoids SOL941 and SOL942 thereby to properly chage over the air flow direction.

An oil pressure circuit with respect to

oil cylinders

45 and 45 for elevating the lower slitter scorer 2, and an oil cylinder 34 with a double cushion for moving the truck 31 are shown in FIG. 14. Referring now to FIG. 14, numeral is a 4-port 3-position double solenoidoperated valve. In the neutral position thereof, only the pump port is closed. Numeral 96 is a 4-port 3-position double solenoid-operated valve. In the neutral position, all the ports are closed. The pump port of the

solenoidoperated valves

95 and 96 is pipe-connected with an accumulator 987. The ports, on the side of the cylinder, of the solenoid-operated valve 95 are pipe-connected, through a

flow control valves

953 and 954, a pilotoperated check valve 955 and a distribution valve 956, with

oil cylinders

45 and 45.

Numerals

957 and 958 are respectively a flow control valve. The ports on the side of the cylinder, of the solenoid-operated valve 96 are pipe-connected, through

flow control valves

963 and 964, with an oil cylinder 34. the accumulator 987 is pipe-connected, through a check valve 986, and a motor (983)-driven pump 982, with a suction strainer 981 within a tank 989.

Numerals

984, and 985 are respectively a relief valve, a pressure gauge. Numeral 988 is a pressure switch connected with the accumulator 987 the pressure switch being closed when the circuit pressure has reached a predetermined pressure, whereby the motor 988 is suspended. In FIG. 14, the solenoids SOL951 and SOL952 of the solenoidoperated valve 95 are demagnetized and the piston rod 451 of each cylinder 45 is suspended. The solenoids SOL961 and SOL962 of the solenoid-operated valve 96 are demagnetized and the piston rod 341 of each cylinder 34 is also suspended.

Electric circuits for the slitter scorer apparatus as shown in FIG. 1 are shown in FIGS. 15 and 16. Referring now to FIG. 15, R, S and T are terminals for three phase AC power connection. SW shows a switch for making and breaking an electric route from a Ieadingin power to a motor circuit and a control circuit. Numeral 192 is a motor for the rotary shear. and r11 is a normally opened contact (hereinafter referred to as A contact) for a relay 11 in FIG. 16. A motor 30 which is connected with a contact r121 is for the upper slitter scorer 2 and the contact 121 is an A contact for a relay R12. The motor 30 which is connected with a contact r131 is for the lower slitter scorer 2 and the contact r131 is an A contact for a relay R13. A motor 43 is for elevating the upper slitter scorer 2 as shown in FIG. 8. When a contact r141 is closed, the motor is rotated normally thereby to cause the upper slitter scorer 2 to be ascended. When a contact r151 is closed, the motor is rotated reversely thereby to cause the upper slitter scorer 2 to be descended. The contact r141 is an A contact for a relay R14, while the contact r151 is an A contact for a relay R15. A motor 983 is located in an oil pressure circuit as shown in FIG. 14 and a contact r16 is an A contact for a relay R16. P8111, P8121, P8131, and P8142 are respectively a push button switch of a normally opened circuit type, which is closed only when its button is in a depressed position and is opened immediately after having released a finger from its button. P8112, P8122, P815, P8141 and P8132 are respectively a push button switch of a normally closed circuit type, which is opened only when its button is in a depressed position and is closed immediately after having released a finger from its button. r122, r132, r143 and r153 are respectively an A contact for the relays R12, R13, R14 and R15. Contacts r152 and r142 are respectively a normally closed contact (hereinafter referred to as B contact) for the relays R15 and R14, forming an interlocking circuit for the ascending and descending actions of the upper slitter scorer 2. Switches P8141 and P8142 and switches P8131 and P8132 are operatively cooperated, thus forming an interlocking circuit. Contacts r17 and r18 are respectively a 8 contact for relays R17 and R18 in FIG. 16 and function to automatically suspend the ascending or descending actions of the upper slitter scorrer 2 in the respective ascending limit and descending limit of the upper slitter scorer 2. Numeral 988 is a pressure switch in an oil pressure circuit as shown in FIG. 14.

Subsequently, referring now to FIG. 16, P8161, P8162, P8171, P8182, P8191 and P8192 are respectively a push button type of switch having the same construction as the switch P8111. P8181 and P8172 are respectively a push button type of switch having the same construction as the switch P8112. Switches P8171 and P8172, and switches P8181 and P8182 are respectively operatively cooperated. SW11, SW12 and SW13 are respectively an alternate type of switch, which is provided with a contact mechanism which keeps retaining the condition until the following opposite action is taken once the switch is set. APSl, APS2, APS3, APS14, APS15 and APS16 are respectively a proximity switch described hereinbefore, each proximity switch giving a logical input signal 1" in an operat ing condition, to an logical element input terminal which is electrically connected with the proximity switch. When each proximity switch is not in an operating condition, a logical input signal is given to the logical element. Subsequently, M11, M14, M15, M16, M17 and M18 are respectively a memory element. The

elements are described hereinafter in FIG. 17. Q is a set input. 8 is a reset input. C is a NOT output. D is an output. At the time ofQ=l and B=O, C==0 and D=1 are retained if it changes to Q =0 so long as B =0 continues under C 0 and D 1. However, when it becomes B 1, C 1 and D O are obtained. Referring now to FIG. 16, A13, A15, A16, A17 and A18 are respectively an AND logical element. The elements are described in FIG. 18. E =0 and F l are obtained only when all the logical inputs Q1, Q2 and Q3 are respectively 1. When they are not respectively 1, E 1 and F O are obtained. OR13, OR14, OR15, OR16, OR17, OR18 and OR19 are respectively an OR logical element. The OR logical elements are explained in FIG. 19. When one of the logical inputs Q1 and Q2 or both of them are respectively 1," G =0 and H 1 are obtained. In the other cases, G l and H O are obtained. T11, T14 and T15 are respectively on ON DELAY element. When the logical input changes from O to 1, the output changes from 0 to 1 only after the elapse of the delay time determined by the element SR11, SR12, SR13, SR14, SRlS, SR16, SR17, SR18, SR19 and SR20 are respectively an output element for making and breaking an AC circuit. When the input is 1," an internal contact is put in a closed condition. When the input is 0, the internal contact is put in an open condition. Namely, when the input is l solinoids SOL91, SOL92, SOL93, SOL951, SOL952, SOL961, SOL962, and relays R1 1, R17, R18 are put into a conductive condition by an AC power source, to which current is fed from terminals X0 and Y0. Subsequently, an order changing operation which, is performed by the slitter scorer apparatus as shown in FIG. 1, is described hereinafter. In this apparatus, the corrugated board 7, which has fed successively from the double facer 8, passes between the upper and

lower rolls

14 and 15 of the rotary shear 1. Thereafter, the corrugated board passes through any one of the upper slitter scorer 2, the lower slitter scorer 2 or on the plate 46 and reaches the cut off machine 9 of the next process through the rear guide 601. The corrugated board 7 which has past the rotary shear 1 is changed in course properly by the front guide 501 and passes the slitter scorer 2 or between the upper and

lower slitter scorers

2 and 2 which have been maintained in advance in any predeterminened oreder while they are not in use respectively.

In order to change the order for the corrugated board 7 which is passing the plate 46 or the lower slitter scorer 2, there is described hereinafter a case where the corrugated board 7 is caused to pass the upper slitter scorer 2 which is maintained in a predetermined order.

Referring to the rotary shear 1, the handle 197 is rotated thereby to cause the cutting edges 141 of the upper roll 14 and the cutting edges receiving portion 151 of the lower roll 15 to be located near the corrugated board 7 as shown in FIG. 20 so that the cutting edges 141 and the cutting edges receiving portion 151 may be confronted with each other with the corrugated board 7 inserted therebetween when the upper and

lower rolls

14 and 15 have made almost one revolution (under one revolution) respectively in the direction of arrows X and Y. Thereafter, the solenoid SOL91 of the solenoid-operated valve 91 (see FIG. 13) is excited by pushing the switch P8161 (see FIG. 16) to cause the

piston rods

1851 and 1851 of the air cylinders and 185 to be projected thereby to lower the upper roll 14. A switch SW11 for indicating the order change (see FIG. 16) is closed together with the operation in the rotary shear 1. Then, the motor 30 for the upper slitter scorer 2 is actuated by pushing the switch PB111 (see FIG. After such an order change preparing operation has been completed, order change starting switch PB162 (see FIG. 16) is pushed. Thus, the current is flowed to the relay R11. The motor 192 for the rotary shear 1 is actuated, and the upper and lower rolls l4 and 15 are rotated in the direction of the arrows X and Y as shown in FIG. 2 thereby to cut the corrugated board 7. After the start switch PB162 has been pressed, and the set delay time of an element T11 has been elapsed and when the iron piece 1 of the upper roll 14 has been approached towards the proximity switch APSl thereby to operate the switch, the electric passage to the solenoid SOL91 and the relay R11 is closed and the upper roll 14 is ascended, whereby the motor 192 is suspended. Also, the pushing action of the switch PB162 excites the solenoid SOL93 of the solenoidoperated valve 93 (see FIG. 13) to cause the piston rod 5421 of the air cylinder 542 to be projected in the feeding guide 54 of the front guide 501 thereby to ascend the guiding plate 541 to a place U2. Accordingly, the corrugated board 7 which has past on the plate 46 or the lower slitter scorer 2 is advanced as it is continuously. however, the tip end of the corrugated board 7 which appears successively from a place cut by the rotary shear 1 is transferred from the guiding plate 541 to the guiding plate 523 of the upper guide 52 and is guided to the upper slitter scorer 2 which has descended to the stoppers 44. As the solenoid SOL93 is demagnetized after the elapse of the sufficient time required for the corrugated board 7 to be transferrd to the upper guide 52, namely, after the elapse of the set delay time of the element T14, the guiding plate 541 is descended to the original place D2. As the order change operation is completed, the switch SW11 is left open.

Subsequently, there is explained a case where the corrugated board 7 which is passing the upper or lower slitter scorers 2 is caused to pass on the plate 46. The same order change preparing operation as in the abovementioned operation is performed. However, the switch SW12 (see FIG. 16), instead of the switch SW11, is closed and the switch F8111 is not necessary to be pressed. The order change start switch PB162 (see FIG. 16) is pressed. Thus, the rotary shear 1 cuts the corrugated board 7. Also, when the switch PB162 is pressed, the solenoids SOL92 and SOL93 of the solenoid-operated valves 92 and 93 (see FIG. 13) are excited. Accordingly, the piston rod 5241 of the air cylinder 524 is retracted while the piston rod 5421 of the air cylinder 542 is projected. The guiding plate 523 of the upper guide 52 for the front guide 501 is ascended to the place U1, while the guiding plate 541 of the feeding guide 54 is ascended to the place U2. Accordingly, the tip end of the corrugated board 7 which appears sucessively from a cut place of the corrugated board is transferred from the guiding plate 541 to the intermediate guide 51 and is guided onto the plate 46. After the corrugated board 7 has been transferred to the intermediate guide 51, namely, after the elapse of the set delay time of the elements T15 and T16, the solenoids SOL92 and SOL93 are demagnetized, whereby the guiding plates 523'and 541 are descended to the original placesDl and D2. Thus, as the order change operation is completed, the witch SW12 is left open.

Then, there is explained a case wherein the corrugated board 7 which is passing the upper slitter scorer 2 or on the plate 46 is caused to pass the lower slitter scorer 2. The order change preparing operation is also performed in this case. However, the switch SW13, instad of the switch SW11, is closed. The motor 30 of the lower slitter scorer 2 is actuated by pushing the switch PB121 (see FIG. 15), instead of the switch PBlll. Then, the order change switch PB162 (see FIG. 16) is pushed. The corrugated board 7 is cut by the rotary shear 1. In this case, the solenoids SOL92 and SOL93 are not excited. Accordingly, the guiding plate 523 is located in a place D1, while the guiding plate 541 is located in a place D2, while the guiding plate 541 is located in a place D2. The tip end of the corrugated board 7 which comes successively from the cut place of the corrugated board is transferred from the guiding plate 541 onto the lower guide 53 and is guided to the lower slitter scorer which has ascended to the stoppers 44. Thus, as the order change operation is completed, the switch SW13 is left closed.

The corrugated board 7 which has been slit and fluted by passing the upper or lower slitter scorer 2 is guided to the entrances 91 and(or) 91 of the cut off machine 9 by the rear guide 601. As the corrugated board 7 which has past on the plate 46 is neither slit nor fluted, it is guided to any one of the

entrance

91 or 902 of the cut off machine 9. The motor 30 of upper (lower) slitter scorer 2 which is not in use is suspended by pushing the switch P8112 (P8122). The upper slitter scorer 2 which is not in use is ascended, and the edges are changed in position, removed, added etc. for the following order change operation by an operator who rode on the

frames

55 and 65 of the front guide 501 and the rear guide 601. Thereafter, the upper slitter score 2 is descended in advance to the stoppers 44, After having engaged the

pawls

35 and 35 with the

pin rods

361 and 361 located at the lower end of the

screw rods

36 and 36 which have descended, in advance, to the upper slitter scorer 2, the switch PB131 (see FIG. 15) is pressed to normally rotate the motor 43 and to ascend the

screw rods

36 and 36, whereby the ascent of the upper slitter scorer 2 is performed. When the upper slitter scorer 2 has reached its maximum ascending limit, the iron piece F14 of the slitter scorer 2 approaches the proximity switch APS14 of the strut 32 to operate it. Accordingly, the motor 43 is suspended and the slitter scorer 2 stops. Also, the descent of the upper slitter scorer scirer 2 is performed by pressing the switch P8142 (see FIG. 15) and reversely rotating the motor 43. When the upper slitter scorer 2 has reached its maximum descending limit, namely, the stoppers 44, the iron piece F15 of the slitter scorer 2 actuates the proximity switch APS15 of the strut 32 thereby to suspend the motor 43. The lower scorer 2 which is not in use is descended and maintained by the operator, and thereafter, is again ascended to the stopper 44. The switch P8182 (see FIG. 16) is pressed to excite the solenoid SOL953 of the solenoid-operated valve 95 (see FIG. 14) and to retract the

piston rods

451 and 451 of the

oil cylinders

45 and 45, whereby the lower slitter scorer 2 is descended. When the lower slitter scorer 2 has reached its maximum descending limit,

the iron piece F16 of the slitter scorer 2 approaches the proximity switch APS16 of the strut 32. Thus, the'sole-

Claims

1. A slitter-scorer apparatus for slitting and fluting materials along a running direction which comprises, in combination, a. a rotary shear device containing an upper roll which is provided with a cutting edge which extends from the circumferential surface of said roll and a lower roll provided with a cutting edge-receiving portion which is adapted to receive the depression of the cutting edge, means associated with at least one of the upper and lower rolls for bringing the cutting edge and the cutting edge-receiving portion into engaging and disengaging relationship with respect to each other, means for rotating said rolls in opposite directions b. an upper and lower slitter-Scorer device disposed downstream of the rotary shear, said upper and lower slitter-scorer device being substantially vertically disposed with respect to each other said slitter portion of the device including an upper slitting roll provided with an upper cutting edge and a lower slitting roll provided with a lower cutting edge which corresponds to and is adapted to engage the upper cutting edge, said upper and lower cutting edges being circular and extending substantially vertically from the circumferential surface of said rolls, said rolls being mounted for rotation, said scorer portion containing an upper fluting roll provided with substantially circular male fluting edges and a lower fluting roll provided with corresponding substantially circular female fluting edges, said male and female fluting edges extending substantially vertically from the circumferential surfaces of said rolls, said upper and lower fluting rolls being adapted for engagement and disposed behind the upper and lower slitting rolls, respectively, and said fluting rolls being mounted for rotation, means for rotating the upper and lower slitting rolls and the upper and lower fluting rolls, c. a front guide means extending from the exit of the rotary shear to the inlet of the slitter-scorer devices, said front guide means comprising a feeding guide plate extending a distance from the exit of the rotary shear, an intermediate guide plate extending substantially horizontally from the feeding guide plate to an intermediate zone between the upper and lower slitter-scorer device, an upper guide plate extending obliquely upward from above the intermediate guide plate to the inlet of the upper slitter-scorer device and a lower guide plate extending obliquely downward from below the intermediate guide plate to the inlet of the lower slitter-scorer device and means associated with the feeding guide plate for aligning said feeding guide plate with the lower guide plate, with the intermediate guide plate and with the upper guide plate, and d. a rear guide means extending from the exit of the slitterscorer device.

2. The apparatus of claim 1 wherein the rear guide means comprises an intermediate guide plate which extends substantially horizontally a distance from the intermediate zone between the upper and lower slitter-scorer devices, an upper guide plate which extends obliquely downward from the exit of the upper slitter-scorer device to above the rear end portion of the intermediate guide plate, a lower guide plate which extends obliquely upward from the exit of the lower slitter-scorer device to below the rear end portion of the intermediate guide plate and a feeding guide plate extending from the rear end of the lower guide plate.

3. The apparatus of claim 2 wherein means are associated with the feeding guide plate of the rear guide means for raising and lowering the rear end portion of the feeding guide plate.

4. The apparatus of claim 2 wherein the feeding guide plate of the rear guide means is divided into at least two guide plates said guide plates being pivoted about their front end, and means for raising and lowering the rear end portion of the feeding guide plate.

5. The apparatus of claim 2 wherein means are provided for raising the upper slitter-scorer device to a position where its inlet corresponds with the upper guide plate of the front guide means and means are provided for lowering the lower slitter-scorer to a position where its inlet corresponds with the lower guide plate of the front guide means.

6. The apparatus of claim 1 wherein the upper and lower slitter-scorer devices are in contact with each other and means are provided for raising the upper and lower slitter-scorer devices together a distance equal to the height of a slitter-scorer device.

7. The apparatus of claim 6 wherein the front guide means comprises a feeding guide plate extending from the exit of the rotary shear to the inlet of the upper slitter-scorer device when the lower slitter-scorer is located in its lowest position.

8. The slitter-scorer apparatus of claim 7 wherein means are provided for separating the upper slitter-scorer device from the lower slitter scorer device and for bringing said upper and lower slitter-scorer devices into allignment with the front guide means and the rear guide means.

9. The apparatus of claim 7 wherein the rear guide means comprises a guide plate which extends substantially horizontally a distance from the exit of the upper slitter-scorer device, said upper slitter-scorer device being in contact with the lower slitter-scorer device which is in its lowest position, and a feeding guide plate extending from the end of the horizontally disposed guide plate, said feeding guide plate being provided with means for raising and lowering the rear end portion of said guide plate.

10. The apparatus of claim 7 wherein the rear guide means comprises a guide plate which extends substantially horizontally a distance from the exit of the upper slitter-scorer device, said upper slitter-scorer device being in contact with the lower slitter-scorer device which is in its lowest position, and a feeding guide plate composed of at least two guide plates which are in substantial parallel relationship with respect to each other and extending from the end of the horizontally disposed guide plate, said feeding guide plates being provided with means for raising and lowering the rear end portions of said guide plates.

11. The slitter-scorer apparatus of claim 1 wherein the slitter-scorer includes bearings for supporting the upper slitting roll and the upper fluting roll, said bearings being disposed in a bearing case which is rotatably engaged with roll shaft plates of the slitter-scorer, said lower slitting roll and lower fluting roll being supported by bearings incorporated in a stationary bearing case which is secured to the roll shaft plates, gear means secured to the end portion of each shaft of the upper and lower slitting rolls and the upper and lower fluting rolls, means for rotating the bearing case, said bearing case being rotatably engaged with the roll shaft plate, thereby causing the upper and lower cutting edges of the upper and lower slitting roll to approach towards and be separated from each other and to engage with and separate from the gears of the end portion of each shaft of the upper end of the lower slitting rolls, thereby causing the male and female fluting edges of the upper and lower fluting rolls to approach towards and separate from each other and to engage with and separate from the gears of the end portion of each shaft of the upper and lower slitting rolls, and means for driving the gear of the end portion of each shaft of the lower slitting roll and the gear of the end portion of each shaft of the lower fluting roll.

12. A slitter-scorer apparatus of claim 11 wherein means are provided for moving the two slitter scorers at a right angle direction with respect to the running direction of the materials being treated.

13. The apparatus of claim 2 wherein the rear guide means is followed by a cutoff machine.

14. The slitter-scorer apparatus of claim 1 wherein said materials are elongated and flat objects which are delivered in succession in the direction of the feeding operation and subsequently delivered to the inlet of a cut-off machine.

15. The slitter-scorer apparatus of claim 14 wherein the upper and lower rolls of the rotary shear are disposed substantially parallel to each other and at substantially right angles to the direction of movement of said flat objects, the cutting edge of said upper roll extending parallel to the roll axis for cutting said flat objects at right angles to the direction of movement of said flat objects.

16. The slitter-scorer apparatus of claim 1 wherein means are provided for elevating the front end portion of the upper guide plate of the front guide means from a first position above the front end portion of the intermediate guide plate to a second position further elevated aboVe said first position.

17. The slitter-scorer apparatus of claim 3 wherein the downstream ends of the upper guide plate, the intermediate guide plate and the lower guide plate of the rear guide means converge toward each other so that the feeding guide plate can further convey the flat objects received from the upper intermediate or lower guide plates.

18. The slitter-scorer apparatus of claim 13 wherein the cut-off machine is provided with two inlets and the rear end portion of the feeding guide plate is adjustable to accommodate the two inlets of the cut-off machine.

19. A slitter-scorer apparatus for slitting and fluting materials along a running direction which comprises, in combination a. a rotary shear device containing an upper roll which is provided with a cutting edge which extends from the circumferential surface of said roll and a lower roll provided with a cutting edge-receiving portion which is adapted to receive the depression of the cutting edge, means associated with at least one of the upper and lower rolls for bringing the cutting edge and the cutting edge-receiving portion into engaging and disengaging relationship with respect to each other, means for rotating said rolls in opposite directions b. a front guide means extending from the exit of the rotary shear to the inlet of the slitter-scorer device, c. an upper and lower slitter-scorer device disposed downstream of the rotary shear, said upper and lower slitter-scorer device being in mutual contact with each other and substantially vertically disposed with respect to each other, said slitter portion of the device including an upper slitting roll provided with an upper cutting edge and a lower slitting roll provided with a lower cutting edge which corresponds to and is in contact with the upper cutting edge, said upper and lower cutting edges being circular and extending substantially vertically from the circumferential surface of said rolls, said rolls being mounted for rotation, said scorer portion containing an upper fluting roll provided with substantially circular male fluting edges and a lower fluting roll provided with corresponding substantially circular female fluting edge, said male and female fluting edges extending substantially vertically from the circumferential surfaces of said rolls, said upper and lower fluting rolls being adapted for engagement and disposed behind the upper and lower slitting rolls, respectively, and said fluting rolls being mounted for rotation, means for rotating the upper and lower slitting rolls and the upper and lower fluting rolls, d. means for raising and lowering the upper and lower slitter-scorers together at least a distance equal to the height of the slitter-scorer, so that the entrance of the upper and lower slitter-scorers may be adjusted to correspond with the front guide means, e. a cut-off machine disposed behind the slitter-scorer device, and f. a rear guide means extending from the exit of the slitter-scorer device to the inlet to the cut-off machine.

20. The slitter-scorer apparatus of claim 19 wherein means are provided for separating the upper slitter-scorer from the lower slitter-scorer so that the objects being treated may pass between the upper slitter-scorer and the lower slitter-scorer.

21. The apparatus of claim 19 wherein the rear guide means comprises a guide plate which extends substantially horizontally a distance from the exit of the upper slitter-scorer device, said upper slitter-scorer device being in contact with the lower slitter-scorer device which is its lowest position, and a feeding guide plate extending from the end of the horizontally disposed guide plate to the inlet of the cut-off machine, said feeding guide plate being provided with means for raising and lowering the rear end portion of said guide plate.

22. The apparatus ofclaim 19 wherein the cut-off machine contains at least two inlets therefor and wherein the rear guide means comprises a guide plate which extends substantiaLly horizontally a distance from the exit of the upper slitter-scorer device, said upper slitter-scorer device being in contact with the lower slitter-scorer device which is in its lowest position and a feeding guide plate composed of at least two guide plates which are a substantial parallel relationship with respect to each other and extending from the end of the horizontally disposed guide plate to the inlets of the cut-off machine, said feeding guide plates being provided with means for raising and lowering the rear end portions of said guide plates so as to correspond with the inlets to the cut-off machines.

23. The slitter-scorer apparatus of claim 19 wherein the slitter-scorer includes bearings for supporting the upper slitting roll and the upper fluting roll, said bearings being disposed in a bearing case which is rotatably engaged with roll shaft plates of the slitter-scorer, said lower slitting roll and lower fluting roll being supported by bearings incorporated in a stationary bearing case which is secured to the roll shaft plates, gear means secured to the end portion of each shaft of the upper and lower slitting rolls and the upper and lower fluting rolls, means for rotating the bearing case, said bearing case being rotatably engaged with the roll shaft plate, thereby causing the upper and lower cutting edges of the upper and lower slitting roll to approach towards and be separated from each other and to engage with and separate from the gears of the end portion of each shaft of the upper end of the lower slitting rolls, thereby causing the male and female fluting edges of the upper and lower fluting rolls to approach towards and separate from each other and to engage with and separate from the gears of the end portion of each shaft of the upper and lower slitting rolls, and means for driving the gear of the end portion of each shaft of the lower slitting roll and the gear of the end portion of each shaft of the lower fluting roll.

24. The slitter-scorer apparatus of claim 1 wherein a cut-off machine provided with at least one inlet thereto is disposed behind the rear guide means.