US1723414A - Blank manufacture and machine therefor - Google Patents

Description

Filed July 25, 1924 7 Sheets-Sheet E In: rNVE AI L'U Filed July 25, 1924 7 Sheets-Sheet 2 TIES H. A. EGGERSS 1,723,414

Filed July 25, 1924 7 Sheets-Sheet Aug. 6, 1929.

BLANK MANUFACTURE AND MACHINE THEREFOR III-[gn Aug. 6, 1929. H. A. EGGERSS BLANK MANUFACTURE AND MACHINE THEREFOR Filed July 25, 1924 '7 Sheets-Sheet y w m w 6, 1929. H. A. EGGERSS 4 BLANK MANUFACTURE AND MACHINE THEREFOR Filed July 25, 1924 '7 Sheets-Sheet 7 )AWA.

E r Y M Y WE Patented Aug. 6, 1929.

PATENT OFFICE.

HANS A. EGGERSS, OF TOLEDO, OHIO.

BLANK MANUFACTURE AND MACHINE THEREFOR.

Application filed July 25, 1924. Serial No. 728,173.

This invention relates to cutting and scoring sheet material.

This invention has utility when incorporated in connection with sheets of paper, a cardboard, corrugated board, fiber stock, etc., especially in handling such as first blanked or in the rough or incomplete pattern form and completing such forms for box blanks by scoring, or by cutting, or slitting, slotting and scoring. The blanks may be progressed in one direction for scoring in said direction, and then progressed in an intersecting direction for additional scoring of the blank in said intersecting direction. I In addition to the foregoing objects, this invention relates to the handling of blanks for boxes for performing two different operations thereon in succession, as scoring operations or scoring and cutting operations.

Referring to the drawings:

Fig. 1 is a fragmentary plan view of an embodiment of the invention in a machine;

Fig. 2 is a longitudinal sectional view of the feeding mechanism;

Fig. 8 is a detail view of the feeding mechanism for the machine of Fig. 1;

Fig. 4: is an end elevation on the line 1VIV, Fig. 3, of features of the control and drive for the rolls;

Fig. 5 is a box blank as a type of product as scored and cutor slotted by the machine as herein disclosed;

Fig. 6 is a side elevation;

Fig. 7 is an elevation of the machine from the opposite side;

Fig. 8 is an end elevation;

Fig. 9 is an enlarged transverse section of that portion of the machine to the rear and at the left in Fig. 8;

Fig. 10 is a detail View of features of a p e s Fig. 11 is a section on the line XIXI, Fig. 1, showing a scoring device;

Fig. 12 is a section on the line XII-XII, Fig. 11;

Fig. 13 is a section on the line XIIIXIII, Fig. 11;

Fig. 1a is a view looking in the direction of the arrow from the line XIVXIV, Fig.11; a

I Fig. 15 is a partial section on the line XVV, Fig. 1;

' Fig. 16 is a section on the line XVIXVI, Fig. 15

Fig. 17 is a diagrammatic view on the line XVIIXVII, Fig. 1;

Fig. 18'is a diagrammatic view similar to Fig. 17, with the ribs and grooves advanced toward each other to grip the sheetstock therebetween; and

Fig. 19 is a diagrammatic view of the ribs and grooves of Fig. 18 as completing the scoring operation and progressing in the plane of the stock to avoid stretching thereof.

Continuous feed d rt 0e.

The object is to get the material into the machine for scoring. The purpose of the feed is to propel the blanks.

Motor 1 is shown having shaft 2 carrying sprocket 3 (Figs. 1, 6, 7,) connected by 19 similarly continuously driven, receives.

sheet stock coming from feed table 20. These shafts 6, 11, have therefrom the continuous feed drives.

Dm'oe for intermittent devices.

The object to convert continuous motion into intermittent. The purpose is to operate devices herein intermittently in determined synchronism in sequence.

-Mounted on the motor shaft 2 adjacent the sprocket wheel 3, is sprocket wheel 21, having sprocket chain 22 therefrom to drive through variable speed transmission 23. This transmission as controlled by handle '23 determines the speed of shaft 24 extend ing along the opposite side of the frame 8 from and parallel to the shaft 6. Brackets 25 from the frame 8 mount this shaft 24f. Variable speed transmission 26 from this shaft 24 is controlled by lever 27 for determining the relative speed of shaft 28 (Figs. 1, 8) carried by brackets 29, from the frames 8, 13. This shaft 28 is parallel to the shaft 11 and on the opposite side of the frame 13 therefrom. The shaft 28 carries bevel pinion 30 in mesh with bevel pinion 31 on scoring device shaft extending transversely of the frame 13. This shaft carries at its end remote from the pinion 31, a gear 33 in mesh with gear on shaft 35 parallel to the shaft 3 and thereover. These shafts 32. 35, are in bearings 36 mounted by bracket 37 carried by the frame 13. V

The machine attendant has as his duty the maintenance of stack of sheets 42 on the primary feed table 20 to be fed therefrom into prima y way of the frame 13.

In the machine herein disclosed this primar-y supply is directed into the machine with the sheets having their greater dimension extending transversely of the way of frame In be blank manufacture, the longer dimension of the, blank ordinarily carries but two score lines 44-, 45, The position of the blank or sheet -12 to be fed from the table 20 is determined by end or marginal guides 46, .17, While the actual feeding is done by the attendant or operator.

Feed into scoring position. The object is to shiftthe blanks. The purpose is o so move the blanks that they are in pee on for receiving scoring action. The shalt 11 carries bevel pinion 48 in mesh with bevel gear &9 on shaft 50 extend ing transversely of the frame 1 and mount- 10, ed in bearings 51 1, 3, l, 6, 8). These bearings 51 are carried by brackets on the frame spaced away from the feed table 26 and adjacent the movably mounted scoring device of the shafts 32, 35.

Mounted integral with each bearing 51 for the shaft 50 is fixed collar or boss 52 having shorter radius or flat portion 52' cleared by shoe portion of lever 5 1 having fined fulcrum Remote from the shoe portion 53, the longer arm of this lever 54. carries roller 56 riding from short radius portion 57 to longer radius portion 58 of cam fixed on the shaft 35. This non-rotary collar or boss 52 at its. short radius flat portion provides clearance for this lever in the rocking thereof that nose 59 as coacting with hearing block 60 may serve to slide such block 60 in ways 60 in the bearing 51 away from the shaft 50 as the shaft 35 brings the cam portion 58 against the roller 56.- This means that shaft 61 carrying idle roller 62opposing live pulling roller 63 on theshaft 50, is thus shifted away from the roller 63 and the sheet i2 may only ride or loosely rest upon this roller 63. However, as the shorter radius cam portion 57 allows the lever 54 so to rock that the roller 62 is against the live roller 63, the sheet material thus engaged receives a pulling action for thrusting into full registering position for scoring as propelled therethrough by the feed rools 16, 19, or for starting discharge travel therefrom as pro polled by the feed rolls 16, 19.

Stop gage.

Follower feed rolls 16 19, near the discharge ends of the ways from the frame 8, are mounted in bearing blocks 64, 65, carried by movable brackets 66 resting on the frames 13, 8 (Figs; 1, 9, 10).

The shaft 35 of the scoring device is provided outside, of the line of travel of the sheet with cams 67 coacting with bar 67 to depress plungers 68 against the resistance of springs 69. The bar 67 is pivoted to the machine frame remote from the bar 69. This allows the sheet 42 as being thrust onward to the rolls 16, 19 to pass over bar 69 between these plungers 68 and ride between sheet engaging arms 70, one at each side of the line of travel of the sheet. These long arms 70 on fulcrum 71 are carried by the brackets 66. Link 72 from the short arm of each lever TO, extends to lever 73 having ful crum 74s. This lever 73 is held toward the block by spring 7 5. When the sheet stock has passed between the rolls 16, 19, such levers which has been lifted while the sheet stock was positioned between the rolls 16, 19, at once drop back to their normal position clear of the bar 69 the spring '75 expands to be effective through link 72 to rock these levers 70. At once the sheet has passed over the bar 69, the springs 69 snap this bar 69 back to intercepting or stop gage position as directed by the rotation of th:

. cams 67.

Scoring.

The object is to define fold lines on the blank material. The purpose is to locate the lines as to position and extent for the desired type of box.

As the machine is designed to care for different sizes of box blanks, there is demand for changing the relations between the scor ing devices. To this end the scoring devices, carried by the shafts 32, 35, 36, 35, on the frame are adjustable toward and from each other, and this is quickly accomplished in practice.

Along opposite sides of the frame extend racks76' (Figs. 6, 7, 8, 11, 12) with which mesh pinions 77 in brackets 78 carrying hearing blocks 79 for shafts 32 35, similar to the mounting for the brackets 37, 66. A ratchet type socket wrench at each squared end 80 of shaft 81 carrying the pinions 7'? may insure parallel travel in adjusting the brackets 78 to the position desired as to the frame. lVhen so adjusted, clamps 81 anchor such brackets 78 against shifting. These shafts 32, are actuated by gears 30, 81, from the shaft 24.

0n the shaft 52 is intermediate collar 82 and terminal collars 83. Outside the coil rs 83 are eccentric terminal trunnions or bearings fixed with the shaft 3 These collars 82. 83,

llll

are connected by groove bar or channel 85 (Figs. 11, 13).

On the shaft 35 is intermediate collars 82, and terminal collars 83 outside of which are eccentric trunnions or bearings 84 fixed with the shaft 35. These collars 82, 83, are connected by rib or plunger 86 as a tongue movable toward, into and with the groove bar 85.

The collars 83 on the shaft 32 have fixed therewith strips 87 to slide in guide way 88 of the adjacent collars 83 on the shaft 35. Dovetailed ways 89 in the collars 83 are held in alignment by guide 90 fixed with the upper collar 83. Accordingly, in the rotation of the shafts 32, 35, simultaneously toward each other as to these collars 82, 83, there is first a shifting of the groove bar 85 up against the under side of the sheet 12 to be scored, while the opposing plunger or ribbedbar 86 has its tongue come down into gripping relation with the sheet from the opposite side thereof and in position to register with such groove. During this operation movement of the scoring effecting members into stock gripping position, there is sliding of the strips 87 as to the collars 83 onthe shaft 35, and there is sliding of the guide 90 as to the dovetailed grooves or ways 89 in the collars 83 on the shaft 32. The further rotation of the shafts 32, 35, mounted in eccentric bearings 84 thrusts the tongue 86 into the groove 85, and in this operation these scoring etfecting'memhers 85, 86, held against relative rotation, travel in a direction transversely to that of their gripping action, and in the direction of travel of the sheet of stock. 1

This is a feature of material importance involving one scoring means, acting upon the same sheetof stock simultaneously with another independent scoring means, for there is first a gripping of the stock at the desired register position, for uniformity in starting. While slight differences in stock .might create departures were the stock thereafter subjected to stretching, hereinthe further action of scoring tends more to crowd, slacken or bulge the stock between the scoring devices, thus avoiding any tendency to weakening or unevenness or other irregularities which might detract from the production of a uniform superior product.

Transfer table.

effected, with the pair of these first scoring means set to crowd toward each other, the clearing of the stock by such means, times the clearing of the stop gage, and the rolls F ecal from transfer table.

The object is to remove the blanks from the table. The purpose is so to move the blanks separately that they are in position for receiving scoring action.

Continuously driven from the shaft 6 by transmission mechanism 32 is eccentric 36 coacting through connecting rod 37 and slide 88 (Fig. 2) in way 39 of the feed table 91 to reciprocate upwardly projecting fingers 41, and thereby pull a lower sheet 42 off a stack of sheets of partially formed blanks on this table 91. This action of the fingers 41 is to urge the lowermost sheet from such stack along the upper side of this table 91 to have the forward edge of such sheet enter between the constantly rotating first feed rolls 16 19". A guard 43, holds back the upper sheets of such stack and allows but the bottom sheet to be shifted from such table into the machine in the timed sequence as determined by this feed.

Second scoring.

transfer table (Fig. 1) is now with its shorter dimension extending transversely of the frame 8. Bar 69 determines the stopping position of the sheet along this second way of the frame 8. This first stop after leaving the transfer table or intermediate receiver 91, places such sheet in position'to have transverse scorings 92, 93, 9 1, 95. The eccentrics 32, 35 in the stock gripping position move, at the stock, toward the oppositely rotating pair of eccentrics 32, 35, and thus shorten the total distance for the stock extent therebetween as to the pair of scorings. Additional scoring means may also be so disposed to act on the stock as shown in Fig. 17.

These scorings 92, 98, 94, 95, are along the ings. The feed rolls operate on the way of the frame-13 for quick travel of the stock away from scoring operations. It is in order to have such speed of travel even greater along the way of the frame 8 than along the frame 13. To this end, drive gears 11 (Fig. 6) on the shaft 6 may be of less diameter than the i ntern'ieshing driven gears to insure the higher speed rotation of continuously running feed rolls 16, 19. Similarly gears 14 on the shaft 6 insure higher speed of operation of other feeder pullingrolls 16, 19.

I stock for a greater distance than the first scor- The multiple simultaneous scoring herein is a. distortion or stretching of the stock loc to and in the tongue and groove registry re gions only; No disturlnince the stock between these scoring offsets occurs for the stock between the scoring devices not only not. placed under tension, but in fact is slacked up. This is effected by having the eccentrics, as gripping the stock, work toward each other in completing the scoring. The degree of eccentrii 'ty may be greater for V vices be end the inner opposing pair to insure rel-case against ten on on the stock at all. regions. This travel g1 nd stock during completion of the multiple scorings is an important factor n the production of a. uniform superior product ccoarse stock.

It is to be noted L of the rib into the groove is a stra. ing action of uniform squeezing na are through the tongue and groove coactin with the stock.

"m. 1 z: inc purpose LS to se\ er aupn nt portions the blan r so that in her; setting up, they may be relatively moved.

After this second scori' 5 operation, stop 69 at the rolls 16, 19, releases the sh c. to pass further along the way of this frame 8 to a second similar stop, thereby bring the sheet 12 into registering position for slotting operation.

The shaft 2& carries pinions 9? in mesh with pinions 98 (F 1, on shafts 1.02 extending transversely of th frame 8, sumlarly to the shafts 3; for t 1 various scoring devices. These shafts 102, are mounted in brackets 78, and the pinions 97 are adjustable along the shaftfl, are the driving connect-ions and mountings for the adjustable scoring means.

On this second way of the frame, he fixed scoring means is toward the table 91, thus permitting the ZQlllllllll'lg adjustable elements, even including the stops G9 to be adjusted theretoward, and thus take advzmtagc of any shortening up of the stock in the handling of smaller blanks. This is a material factor in maximum production rate.

The shaft 102 (Figs. 15, 16) is provided with collars 103 having radial cams or grooves 104. The collars 103 are eccentric and coact with rollers 105 for effecting the downward or cutting thrust of blade 106 guided by ways 10'? of frame 108 fixed with the bracket 78. Rollers 109 from the blade 106 serve to lift the blade away from opposing members 110. The operation of the blades 106 toward the opposing members 110, effects the slotting or cutting of lines 111 (Fig. 5), as extensions from the scorings 92, 93, 9 1, in the box blank d2, thereby completing such blank. The frame 108 may be adjusted as to the bracket '78 by rotation of screw 108 fixed with the bracket '78 and having threaded connection with the frame 108.

Extending transversely of the frames S, 1 3. over the roll pairs are frame members 112 connecting the brackets A 8, 78 for giving more rigidity to the brackets as carrying the rolls.

Finis/ ied 7110.02.70 disc/large.

The object is to move the blanks from the machine. The purpose is to have the scored blanks taken away from the scoring devices so that additional blanks may be there acted upon.

The shaft ,6 extending from the frame 5% away fromthe frame 1 carries pinion 113 in mesh with pinion 11 1 (Figs. 1, 6), for driving shaft 115 carrying conveyor belt 110 to effect removal of the finished box blanks from the machine. This conveyor passes about follower roll 117 adjacent the discharge end of the frame 8. The blanks as thus removed from the machine are deposited on final delivery table 118, which nniy be mounted on wheels 119, and thus be a truck for transferring the blanks as completed to any desired location in the plant, or for parking and shipping. This removal of the blanks by the conveyor is generally used only where shorter stock is being handled and talo 120 connected to terminal brackets (36 of the terminal feed roll pair is adjusted along the frame 8 away from the motor 2. This table 120 then completes the way on the frame 8 from such final feed roll pair to effect delivery to the belt 116.

The disclosure herein is one which may be quickly set for changing the character of output. It may have its production rate built up to a maximum at all times. It insures accurate scoring, even of corrugated stock.

As suggested, the speed of travel of the sheet 12 along the way of the frame 8 is at a greater lineal rate than the speed of travel of the sheet 12 along the way of the frame 13 Which delivers to the intermediate transfer table 91.

However, as the way on the frame 13 is materially shorter as to the length of the stock to be cared for, the feed rate per sheetmay be such as to bring about an accumulation of stock on the transfer or intermediate table 91. There is a factor of utility in this mode of operation in that the attendant or operator of the machine supplying stacks or sheets on the primary feed table 20 and manually feeding therefrom, may replenish these. stacks on the primary feed table with possibly one or two idle operations on the scoring means on the way of the frame 13. However, the reserve on the intermediate table 91 insures that there is no idle operation of the means along the way of the frame 8. This factor of mechanism output has value in the general machine operation for maintained maximum output.

lVhatris claimed and it is desired to secure angle to the first Way portion for receiving stock with the shorter dimension of the stock transversely thereof, second scoring means transversely of the second way portion, a receiver between said way portions for stock accumulation from the first way portion, and a feeder for removing the bottom sheet from said receiver and delivering to the said second way portion.

2. A machine embodying a first Way portion for receiving stock, first scoring means transversely thereof, a second way portion for receiving stock from the first way, second scoring means transversely of the second way portion, and driving means for shifting the stock from said scoring means, said driving means coacting at different speeds in the different way portions, whereby the longer dimension of stock for scoring may be in the lesser portion of said way.

A machine embodying a first way portion for receiving stock, first scoring means transversely thereof, a second way portion for receiving stool: from the first Way portion, and second scoring means transversely of the second way portion and disposed for greater lineal extent along said second way portion than the first scoring means along said first way portion, and driving means at one linear speed for stock along said first Way portion and at a greater linear speed along said second way portion.

4. A machine embodying a way, a first scoring means for one direction of material on said way, a second scoring means beyond said first scoring means, said second scoring means coacting for another direction of scoring of the material, driving means for progressing the material from the first scoring means to the second scoring means, these scoring means embodying a plunger and a seat, said plunger being shitftable to crowd material into said seat and actuating means for the plunger and seat to shift in a common direction together.

5. A scoring device for sheet material embodying a plunger and a seat, said plunger being shiftable relatively to the seat to crowd sheet material into said seat, and an actuating means for moving the plunger to ward and from the seat and also moving the plunger in the direction of travel of the sheet material.

6. A scoring device embodying a pair of parallel members dcterniini ng a scoring plane therebetween, eccentrics on opposite sides of said plane for iarrying said members, and guiding means extending between the memberstransversely of said. plane for holdin the nien'ibcrs from relative rotation.

7. A scoring device embodying a pair of members coacting for determining a scoring plane therebetwoen, eccentrics carrying said .members, driving n'reansoppositely rotating the eccentrics for shifting the members relatively toward each other, and guiding coacting means between the members extending transversely of said plane for holding the members for simultaneous movement transversely of their movement toward each other.

8. A scoring device embodying a grooved member, an opposing ribbed member, oppositely rotatable actuating means for shifting the members to bring the rib into said groove, and guiding means coacting between the members for holding the members to shift transversely of their movement toward each other.

9. The method of acting upon sheet material by an opposing plunger and seat on opposite sides of the supported and stationary material, embodying effecting relative movement between said plunger and seat to reduce the spacing distance therebetween determined by the material, and during said movement shifting from a first position of rest said material together with the plunger and seat in a common direction in the plane of the material to a second position of rest.

10. The method of scoring sheet material by causing a pair of scoring effecting members to grip the material, and during said gripping to shift one of said members toward the other in the direction of the extent of said material.

11. A scoring device for sheet material embodying a plunger having a projecting tongue and a seat providing a groove for receiving said tongue, said plunger being shiftable relatively to the sheet to crowd sheet material into said seat, and an actuating means for moving the plunger toward and from the seat and also moving the plunger in the direction of travel of the sheet material.

12. The method of effecting a plurality of parallel scorings in sheet material comprising causing a pair of scoring members to approach each other in material gripping coaction, and then during their further movement into scoring effecting position causing said pair of members to shift to reduce the dis-- tance between such pair and an adjacent pair of scoring members, thereby relieving the sheet material. of strain therebetween.

13. The combination of a pair of parallel scoring devices on opposite sides of the plane of a sheet ofmaterial to be scored and driving means for operating said devices simultaneously on the sheet material.

Way, each device comprising a pair of sheet. material engaged members, mounting means for shifting the members in the direction of said way, driving means for the devices to effect simultaneous gripping of the material by the two devices and then shifting of said members as carried by said mounting means toward each other.

In witness whereof I afllx my signature HANS A. EGGERSS.

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