US2652247A - Feed mechanism for carton blank forming apparatus - Google Patents

Description

Sept. 15, 1953 G. KANE 2,652,247

FEED MECHANISM FOR CARTON BLANK FORMING APPARATUS Filed m 29, 1950 s Sheets-Shet 1 INVENTOR. qua (4.4

Sept. 15, 1953 ANE 2,652,247

FEED MECHANISM FOR CARTON BLANK FORMING APPARATUS Filed May 29, 1950 5 Sheets-Sheet 2 I lb Htt,

Sept. 15, 1953 FEED MECHANISM FOR C 5 Shets-Sheet 3 Filed May 29. 1950 INVENTOR.

G KANE 2,652,247

RTON BLANK FORMING APPARATUS Sept. 15, 1953 FEED MECHANISM FOR CA mm a 1U! a 4 w M a mu T1. W W K 0 Q 1 M v e 6 may 2 5 v! B m N. l A V M 1 E 1|! .I l .2 -8- iB-ilia-fil lllltrl. I O q l k N I l l'l I v A m Flled May 29. 1950 ATUS G. KANE Sept. 15, 1953 FEED MECHANISM FOR CARTON BLANK FORMING APPAR 5 Sheets-Sheet 5 Filed May 29, 1950 Patented Sept. 15, 1953 UNITED STATES TENT OFFICE FEED MECHANISM FORMING 4 Claims.

continuous web intermittently into and out of a creasing and cutting or blank forming press by feed mechanism which moves the web by engagement with the previously formed perforations of the web whereby accurate registry of the printed portions of the web with the dies of the blanking press is assured and the printed web expeditiously formed into finished printed box or carton blanks.

A further object of the invention is to provide a blank forming press which takes a previously printed and registry perforated web and intermittently feeds this web to the cutting and creasing dies of the press under the control of the perforations in the web, so that the dies will operate successively on the printed portions of the web to form finished printed box or carton blanks.

The invention further consists in the several features hereinafter set forth and more particularly defined. by claims at the conclusion hereof.

In the drawings:

Fig. 1 is a side elevation view of a blank forming press embodying the invention;

Fig. 2 is a plan view of the press;

Fig. 3 is a rear elevation view of the press;

Fig. 4 is a detailed side elevation View of the drive for the feed belt, parts being broken away;

Fig. 5 is a side elevation view of parts shown in Fig. 4;

Fig. 6 is a vertical sectional view taken on the line 6-6 of Fig. 7;

Fig. 7 is a plan view associated mechanism;

Fig. 8 is a side elevation view of a portion of the feed mechanism;

Fig. 9 is a detailed vertical sectional view taken on the line 9-9 of Fig. 8;

Fig. 10 is a vertical sectional view taken on the line l0-l0 of Fig. 8;

Fig. 11 is an enlarged side elevation View of certain of the feed rolls;

Fig. 12 is a detailed vertical taken on the line I2I2 of Fig. 11;

Fig. 13 are diagrammatic views of apparatus used in carrying out the method described herein;

Fig. 14 is a plan view of the apparatus shown in Fig. 13;

of the feed belt and its sectional view FOR CARTON BLANK APPARATUS Gideon Kane, Green Bay, Wis. Application May 29, 1950, Serial No. 165,015

Fig. 15 is a detailed vertical taken on the line |5-l5 of Fig. 2; Fig. 16 is a detailed vertical taken on the line i6-l6 of Fig. 2.

Fig. 17 is a detailed vertical taken on the line [7-41 of Fig.

Referring to sectional view sectional View sectional view 16. Figs. 13 and 14, I have shown printed designations X representative of any desired printing at spaced intervals along the web web Ila through the blanking press 2|, features of which form parts of the present invention, to form the finished printed box or carton blank 22.

printing press and web perfomay be used to respectively print and perforate the web in my method of forming box blanks, no special mechanism has been shown, butso far as I am aware, the use of a previously printed and perforated paper supply roll in conjunction with a blanking and forming press in which the perforations of roll form of printed stock are used to obtain accurate registry of the printed portion of the web with the cutting and creasing dies of the press is new.

The blanking press includes reciprocatory creasing and cutting mechanism, and means for intermittently feeding the previously printed and perforated stock in web form to said mechanism. The feeding mechanism includes means for drawing the web of printed stock off its supply roll and taking out the curl that may be formed therein and advancing it to a feeding belt provided with pins for engaging in the perforations in the web and intermittently driven to advance the web in equal length increments determined by its printed portions through the creasing and cutting mechanism.

Referring to Figs. 1, 2, 11 and 12, at the forward end of the press three transversely extending feed rolls 23, 24 and 25 are journalled in the frame 26 of the press in spaced formation so that the upper roll 24 operates between the rolls 23 and 25 and in feeding relation therewith, the

crank arm. A rack roll 24 being a rubber friction roll which may move vertically because of the mounting of its trunnions 24a in vertically disposed slots 2? in the press frame. Each of the metal rolls 23 and 25 are positively driven by gears 29 and 28 on their shafts meshing with a drive gear 38 journalled on a stud shaft 3i and carrying an adjustable V-belt pulley 32 connected by a belt 33 with a similar adjustable pulley 54 on a shaft 55 which carries a sprocket 36 connected by a chain 31 with a sprocket 38 on a shaft 39 that carries a sprocket 40 connected by a chain 4! with a sprocket 42 on the main intermittent feed shaft 43, see Figs. 1, 2, 6 and 7. As shown in Fig. 12, the pulley 32 includes a coned disk 32a having threaded connection with a threaded stud es forming a part of the hub of said pulley, said 'disk being locked in adjusted position on the stud 44 by a lock nut 45. This construction permits widening or narrowing of the belt groove of the pulley to change its diameter relative to the belt 33 so as to vary the speed of the gear 3G. Th pulley 34 is of the same construction as the pulley During the active drive of the rolls 23 and 25 from the shaft 43 the rolls 23, 24 and 25 are driven in the directions indicated by the arrows in Fig. 1 and act to take the curl out of the web as itis drawn from the supply roll and advance it to form a loop as which passes upwardly over a curved apron fli'i forming part of a flat bed 48 over which the web passes and along which it is drawn by sets of draw rolls 49 and H cooperating with a pin belt 5!, to advance the web to the creasing and cutting mechanism of the press.

Referring to Fig. l, I have shown a geared head electric motor 52 Whose reduced speed shaft 53 carries a pulley 53a connected by multiple belts 54 with a pulley 55a on a shaft 55 carrying a pinion 5t meshing with a gear 51 on a lay shaft 53 which carries a pulley (not shown) connected by a belt 59 with a pulley 60 on a shaft El. Referring to Figs. 1, 2, 4 and 5, the shaft 6| is provided with lengthwise adjustable crank in the form of a slotted crank arm 62 fixed to said shaft and having a feed screw 53 journalled therein on which the threaded hub E4 of a crank pin '95 is adjustably mounted, said hub being slidably mounted in and guided by said arm 52. Turning of the feed screw 63 relative to the arm 62 results in a longitudinal movement of the pin 65 toward or away from the center of the shaft 6| to adjust the effective length of the bar 66 is pivotally connected at one end to the crank pin 65 and works in a slotted guide formed in a collar 61 loose on the shaft 43 and is in engagement with a gear 68 also loosely mounted on said shaft. The hub of the gear 59 has formed integral with it or connected to it a crank arm 69 which with a crank l9, loose on the shaft 43, carries a pin or shaft .ll upon which a pawl 12 is pivotally mounted and urged by a spring 13 into engagement with the teeth of a ratchet wheel 14 fixed to the shaft 43. With this arrangement, the continuous rotary motion of the shaft BI is converted through the reciprocatory rack 68 and the gear 68 into reciprocatory movement of the pawl E?! which acting on the ratchet l4 intermittently advances the same a part of a revolution for each revolution of the shaft iii, the de ree of advance being determined by the stroke of the rack which is varied by the adjustment of the crank pin 55 relative to the center of the shaft 6 I.

base frame member '9"! slidably mounted is provided.

The main feed drive shaft 43 has the draw rolls 49 fixed thereto- The companion roll 53 for each roll 49 is journalled on a stud shaft it carried by a crank arm 16 loose on a throw out shaft 11 journalled in bearings F8 mounted on the frame of the machine. Each roll 5i: is normally yieldingly urged toward its companion roll by a spring 19 interposed between an ear or boss 8t on thecrank arm 16 and an ear SI on a collar s2 fixed to the shaft '11. The tension of the spring 19 is adjusted by an adjusting screw 33 having threaded engagement with the ear es and loosely slidably and rotatably mounted in the ear =8l of the collar 82. For threading through of the stock, the shaft 11 is turned to move the rolls5il away from the rolls 49 by a manually operableacrankarm 84 provided with a handle 85 and adapted to be locked by a clamp bolt 86 mounted in the frame of the machine and work ing in an arcuate slot 81 in said arm 95, see Fig. 8.

Referring to Figs. 2 and 6 to 10, the shaft 3 driven by the pawl and ratchet drive above described and carryingthe sprocket 42 has a worm wheel '88 pinned thereto and meshing with a manually adjustable worm 89 carried by a collar 89a connected by screws on with a sleeve 9% surrounding a portion of theshaft 43 and having the pin'belt drive wheel 92 secured thereto by a key '93. The wheel 92'has equidistant circumferentially spaced perforations or depressions 94 in its periphery to engagethe pins am of the pin belt 5|. The adjustable worm 89 permits angularly advancing or retracting of the wheel 92 relative to the drive shaft 43, so that the pin belt 5i canbe moved independent of the drive for'preliminar-y adjustment of the web relative to the dies of the press. The pin belt 5! runs over an idler wheel 95 'journalled on a stud shaft 96 and provided with pin receiving depressions similar to the depressions '94.

For lateral alinement of the Web on the and for maintaining the perforated portions of said web in mesh with the pins 59a of the pin belt a laterally adjustable frame comprising a guided by the shafts 43 and '96, and carrying uprights in which afra'me member 99 is vertically adjustably The member 99 is lucked in vertically adjusted position relative to the uprights 98 bybolts H10 carried by'said member and extending through slots flfll in said uprights and provided with'wingnuts 402. At its ends, the member carries shoes ilfl'3 provided'with' pin clearance grooves I94, these shoes being disposed above the top side of the'web above the Wheels 92 and 95 inthe operative position of the frame to prevent the web disengaging itself from the pins em. For threading through purpose, the member 99 may be raised up or removed. The uprights 98 form lateral guides along which the perforated edge of the web-travels, and to secure th proper adjustment of these uprights, the frame member 91 has the end 1950f an adjusting screw I95 rotatably-secured thereto by a collar lfifia, a spacer sleeve NH, and a nut :38 on said screw which screw threads into a bushing I99 mounted in the machine frame and is provided with a hand knob H9.

Under the action of the :draw rolls 41-3 and 5d and the feed belt 5| "the :printed and perforated web is advancedintermittently to the creasing and cutting dies of the press which areoi known construction and include a stationary platen i i i, usually a'flat plate, and a reciprocatory platen H2 on which the dies D are mounted. For reciprocating the platen I I2, a rotary shaft I I 3 carrying eccentrics I I4 is operatively connected to said platen by lengthwise adjustable connecting rods pivotally connected by pins I 4-5 to said platen. The connecting rods include eccentric engaging straps Ilfi which carry bolts lI'I. Each bolt I I? has a threaded sleeve H8 rotatably mounted thereon and in threaded engagement with the shank IIB of the rod, the adjustment of said sleeve relative to said shank acting to lengthen or shorten the connecting rod which is then looked in adjusted position by a lock nut I The adjustment of the length of the connecting rods allows for the desired pressure of the dies in the cutting operation. Both ends of the shaft II3 carry sprockets I2I. Each sprocket i2l is connected by a chain I122 with a sprocket on the shaft 53 which as heretofore noted is continuously driven from the motor 52.

Associated with the shaft 43 is electric or dynamic brake I24 of a suitable construction which is energized during the non-feeding movement of said shaft by current supplied thereto from any suitable source Whose supply lines I25 include a control switch Iii-t which is controlled by a cam l2? on the shaft 5i, the switch being off when its operatingmember I26 engages the high Referring to Figs. 16 and 17, the stationary platen I II is shown as a fiat plate mounted on the bed of the press I29 and clamped to the bed on opposite sides by sets of eccentrics HQ. As shown in Fig. 1, th shafts for these eccentrics extend through the sides of the press housing and carry crank arms I3 I, one of the crank arms of each set having an operating handle 232 and the two arms of the set being op-eratively connected together by a link I33, so that by swinging the cranks I32 on each side of the press, all the eccentrics will be turned either to a position in which they tightly clamp the plate I II to the bed I29 or to a position in which said plate is free of the bed, so that it can be shifted lengthwise thereof in case the knives of the press create too much of a roughened area in certain local areas of the plate. For holding the eccentrics in their operative clamping or release position in Figs. 16 and 17 spring pressed detents I34 are mounted in the hubs of the crank arms Isl in diametrically disposed positions and are adapted to engage in recesses I35 formed in the sides of the frame 25 at angularly spaced positions.

To summarize, applicant takes a roll of box or carton paper stock, runs it as a web through a and perforating press such as Ill, during which state printed designations are placed on in positions that they will assume on one or more of the sides of the finished carton blank, and the perforations being made fixed platen III H2, and the relabelt 5! through a suflicient tive position of the printed area of the stock beneath the reciprocatory platen relative to the cutting and creasing die D is noted, and by the turning of the hand operated worm 89, the web is advanced or retracted under the reciprocatory platen to secur as near a correct positioning as possible. Then the machine may be started to cut one or more of the blanks and to check to see if the printed portions of the blank are in proper registry relation with th cut out final outline of the blank, and if not, further manual adjustment of the feed belt as above described is effected. 'Also at this time during this preliminary positioning of the web the side guide including the uprights 8 are adjusted so that the lateral alinement of the web relative to the cutting and creasing dies is correct. Also the effective throw of the crank 62 1s adJusted by the adjustment of the crank arm 65, so that the rack 65 during one rotation of the shaft BI will advance the pawl 72 through a sufficient crank angle to turn the ratchet wheel M and the shaft 43 through such an angle that the wheel 82 will advance the pin length of movement to bring a succeeding printed area of the web into the position previously occupied by a preceding portion of such Web, so that the stock will be intermittently fed in equal increments through the space between the die D and the platen III during the time that the platen I I2 is out of engagement with the web. After the cutting and creasing operation, the flash from the web including the perforated edge 20 is removed in the usual manner, so that the finished blank 22 results, in which finished blank the printed portions I1 appear on those sides of the blank on which it is desired to display them.

It is to be noted that in most instances the perforations 20 are disposed outside of the area of the finished carton blanks, but in some instances, as for example, in connection with egg cartons and other special cartons the perforations 26 may go right through the blank itself so as to eliminate waste.

I desire it to be understood that this invention is not to be limited to any particular form or limitations are included in What I claim as my invention is: 1. Paper web feeding mechanism for feeding a predetermined length of paper web previously perforated along one edge thereof to a press comrolls, said intermittent feed operating during the non-operating stroke of said press and an intermittently operated shaft operatively connected to said draw rolls and the pin belt for simultaneously operating said rolls and belt.

2. The structure as defined in claim 1 including means for effecting a ire-adjustment of the web through an angular adjustment of the pin belt.

amaze? 7 '8 vanin the stock through said pre including rack engageable withsaid :gear, :a :continuously driven shaft, "andia crank on said :shaft operadraw rolls and a pin'beltintermittently driven at the same speed during the'non-working stroke of 'tively connected to Saidmck. said press, said pin belt meshing with the perforation's of said web to accurately advance equal increments of th loopof said web successively to the press and having a portion active on the same section of the web as said draw rolls, and means for simultaneously varying the feed of GIDEON KANE.

References Cited in the file of this patent UNITED STATES PATENTS said last'named draw rolls and said belt to ac- Number Name Dat commodate the different size loop portions of the 162,341 Beecher 1375 web as the web is fed to the press. 575,239 Huewe t 1 Jan. 12, 1897 4. Mechanism for feeding a web of pre-printed 871,487 Denmead 9, 19 7. and pre-perforated stock through a blanking 954,751 Mann Apr. 12, 1910 press during the non-working stroke of the press 1,146,978 Walsh July 20, 1915 including draw rolls 'engageable with the web, a 1325,1531 Inman et a1 May 8, 191-7 belt having spaced pins engageable in the spaced 153L579 Rosenfeld-fie Feb. 24, 1920 perforations of the web and having a portion ac- 1,611,734 Gamm et a1 80. 1, 1926 tive on the same section of the web as said draw 1,763,735 Y- June 17, 1930 rolls and a drive wheel for said belt, and means 2,150,016 Wood e Mar. 7, 1939 for intermittently angularly advancing said draw 2,179,150 Hageman 1939 rolls and said belt comprising a shaft carrying 2,198,333 Freeman Apr. 23, 19.40 said draw rolls and the drive Whee1for said bea, 2,258,799 Payee Oct. 14, 1941 a ratchet wheel secured to said shaft, a reciproca- 2,380,949 najvldson 1945 tory pawl engageable with said ratchet Wheel, 1 Sept 1949 QC en 1155 Sept. 5, 1950,

a gear connected to said pawl, a reciprocatory

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