US1429324A - Drum machine - Google Patents

Description

H. CARLE.

DRUM MACHINE.

APPLICATION FILED JUNE 29, 1921. I m igg gg Pawnted ept. 19, 1922.

15 SHEETS-SHEET l.

- INVENTOR M-$M I I ATTORNEY H. CARLE.

DRUM MACHINE.

APPLICATION FILED JUNE 29, I921. ggg ggag Patented ept. 19, 1922 I5 S HEETS SHEET 2.

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ATTORNEY H. CARLE.

DRUM MACHINE. APlLlATION FILED JUNE 29, 192].

1,429,324,, I PatentedSept. 19, 1922 15 SHEETS-SHEET 3.

' iNVENTOR MBY.

l v ATTORNEY H. CARLE.

DRUM MACHINE APPLICATION FILED JUNE 29, 1921.

Patented Sept. 19, 1922.,

15 SHEETS-SHEET 4- INVENTOR H. CARLE.

DRUM MACHINE.

APPLICATION FILED JUNE 29. 1921.

1,429,324, Patented Sept. 19,1922.

15 SHEETS-SHEET 5- INVENTOR Mal ATTORNEY H. CARLE.

DRUM MACHINE.

APPLICATION FILED JUNE 29, 1921.

Patented Sept. 119, 1922:,

15 SHEETS-SHEET a.

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mw sg l-e INVENTOR ATTORNEY H. CARLE.

DRUM MACHINE. APPLICATION FILED JUNE 29,1921.

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v m wmm m w INVENTOR ATTORNEY H. CARLE. DRUM MACHINE.

APPLICATLON FILED JUNE 29, 1921. Lggfifiw Patentedsiept 19 1922,

15 SHEETSSHEET 8- INVENTOR ATTORNEY H. CARLE.

DRUM MACHINE.

APPLICATION FILED JUNE 29, I921.

Patented Sept. 19, 1922.

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H DRUM MACHINE;

' APPLICATION FILED JUNE 29; 1921- 15 SHE ETSSHEET 11,

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INVENTOR ATTORNEY H. CAR LE DRUM MACHINE.

APPLICATION FILED JUNE 29, 1921- "PatentedSept. 19, 1922.

15 SHEETSSHEET l2- ATTORNEY H. CABLE.

DRUM MACHINE.

APPLICATION FILED JUNE 29,1921.

PatentedSept. 19, 1922..

I5 SHEETS-SHEET I3.

INVENTOR ATTORNEY H. CABLE.

-DRUM MACHINE.

APPLICATION FILED JUNE 29,192].

1,429,324. Patented Sept- 19,1922.

1:; SHEETS-SHEET 14. 40 255 258 ."5 T! 275-- i 2o H. CARLE.

DRUM MACHINE.

. APR IIIIIIIIIIIIIIIIIIIIIII L 1,429,324. PatentedSept. 19, 1922.

' U 77 7 v v 15 SHEETSSHEET 1s.

"-* IN-VENTOR ATTORNEY I strips are in web form.

Patente'dsep t 19, 1922.

'' UNITED sr-Aras I I P TENT- ;Fri-ca.- I

.HAROLD CABLE, or BUFFALO, NEw'YoRmAssIeNoRmo r. N. Bun'rcoMrANx, mm-

ITED, or monomo, ONTARIO, cnnamn A conronATIoN-onrnm rnovmcn'or ONTARIO, DOMINION OF CANADA.

DRUM MACHINE. I

.at Buffalo, in the county of Erie" and State of New York, have invented certain new and useful Improvements in Drum Machines, of

which the following is a full, clear, and

exact description, such as will enable others skilled in the art to which it appertains to I make and use the same. This invention relates to machines for making boxes and the like and with respect to its more specific features tomachines for automatically making box parts from supplies of' paper strip especially when the One of the objects of the invention .is the provision of a; machine for rapidly and continuously automatically making box parts, which may be termed drums, they having a head and a flange.

Another object of the invention is the provision of eflicient mechanisms cooperat- -mers;

ing to fabricate and assemble heads with the flanges of drums, especially where the heads are made of soft frangible paper stock.

Another object of the invention is the provision of practical mechanism for feeding relatively soft head strip material, cutting heads therefrom and supplying the severed heads to the mechanism for assembling the same with the flanges.

provision of simple and eflicient folding .mechanism adapted especially for folding the circular margins of head strips or blanks into relatively smooth cylindrical shape.

Another object of the invention is the provision of a simple and practical device for discharging articles from formers on which they have been made.

Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in the features of construction,,combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the appli-' cation of which will be indicated in the following claims.

In the accompanying drawing forming part of this specification whereln similar reference characters refer to similar parts throughout the several views,

right of Fig. 1;

' carries the formers;

Application'filed June 29,1921. Serial No. 481,233.

Figure l is a plan view of a machine embodying the invention;

F g. 2 s a front elevation of the machine;

Fig. 31s a side elevation 4 is a rear elevation of the machine; F mg. 5 1s a side elevation looking at the left of Fig. 1;

Fig. 6 is a horizontal section throughthe machine taken somewhat above the main driving shaft and showing the arrangement of several of the driving elements;

Fig. 7 is a detaiLof the operative connection for rotating the turret head which F ig- '8 is a vertical section through the turret head and its shaft, showing one of the formers and its driving and discharging device; x

Fig. 9 is a plan of the turret head, showing one of the formers, parts being broken away for clearer disclosure;

Fig. 10 an end view of one of thefor Fig. 1-1 is a view similar to Fig. 10 with the vacuum plate removed;

Fig. 12 1s a view similar toFig. 11 with the keeper plate removed; v

Fig. 13 is an elevation, partly sectional, of the mechanism for feeding the head strip, severing blanks therefrom andsupplying the blanks to the formers;

Fig. 14 is a detail illustrating the; devices for operating the? feed rolls for the head ip; a

Figs. 15 and 16are respectively a side elevation and a horizontal section of a valve looking at the device for controlling the vacuum grip associated with the cutting die illustrated in Fig. 13; I i

Fig. 17 is a rear detail view of the bracket for supporting the cutting die and the vacuum pipe leading therefrom;

Fig. 18 is a vertical'central section through.

presser .Fig.'22 is a sideelevation of the devices operating atone of the stations tofold the margins of the head strips, or blanks, on

the formers, and to press the coiled flange strip;

Fig. 23 is a vertical central sectlon through the folder of F ig. 22, and the former with coiled flange strip cooperating'therewi'th;

Fig. 24 is a detail of the presser illustrated in Fig. 22;

Fig. 25 is a side elevation of the devices for feeding, pressing and severing another flange strip;

Figs. 26, 27, 28, and 29 are detail vlews ofvarious devices appearing 1n. Fig. 25;

Fig. is a side elevation of the device for discharging the paper articles from the formers; also of the safety device cooperat-' ing therewith;

Fig.31 is an end elevation of the construction shown in Fig. 30;

Fig. 32 is a detail of the safety device illustrated in Fig. 30; I

Fig. 33 illustrates the clutch shiftlng device with which the safety device of Fig. .30 cooperates;

Fi'g. 34 illustrates the former with the head strip or blank applied thereto in position to be folded;

- Fig. 35 is similar to Fig.34 but illustrates the first coiled flange strip on the former;

Fig. 36 is similar to Fig. 35 but shows the head strip folded onto the coiled flange stri 37 is similar to Fig. 36 but shows the second coiled flange strip overlying the folded margin of the head strip and the first coiled flange strip;

Fig. 38 illustrates a portion of the first coiled flange strip and the glue lines thereon; 1

Fig. 39 illustrates a portion of the second coiled flange stri glued over all;

Fig. 40 is a d stail of a connection for operating the cutting die; j

Fig. 41 is a perspective view of a drum; and

Fig. 42 is a perspective view, partly sec 1 tiona l, of a box equipped with a drum.

.The disclosure of the invention will be facilitated 'by first setting forth certain of the primary operations performed. Reference being made to Figs. 34 to 37 inclusive, there is shown a head strip or blank 1 of paper lying across the end of a cylindrical former, or mandrel. The application of the head strip 1 is afl'ected .at the first station. At the second station another strip, or blank, iscoiled around the cylindrical former into a-plurality of plies 2.-

At a third station therojecting margin 3 of the head strip is fol ed down onto the coiled flange strip and adheres thereto as illustrated in. Fig. 36. At afourth station another flange strip 4 is coiled around the first coiled strip and overlies the folded operating the masses.

margin \of the strip 1. The article produced, as just described, may then be discharged from the former by pushing'it to the left, considering Fig. 37.

Referring now more specifically to the drawings, the frame of the machine comprises a main table 5 which supports an auxiliary table 6 thereabove. On the main table is an electric motor 7. The numeral 8 indicates a rotary vacuum pump driven from the motor by the gears 9 and 10. The numeral 11 indicates a vacuum tank slung beneath the table 5 and communicating with the pump by Way of the pipe 12. By pump, the pressure in the tank 11 is reduced, and-the two provide an;

exhaust device for energizing certain vacuum grip posts hereinafter mentioned.

The numeral 13 indicates the main driving shaft of the machine supported in bearings upstanding from the table 5 and driven from the motor through the instrumentality of the gears 14, 15 and 16. The numeral 17 indicates a hand wheel for turning the main driving shaft 13 at Will.v "l 18 indicates a clutch which cooperate irectly transmit the rotation of the get. gto the main driving shaft 13. A suitable clutch fecting intermittent rotation of the turret head shaft 22 and locking this shaft'between its intervals of motion. The gears 23 and 24 rotate in horizontal planes, and the gear 24 is at the lower end of a short vertical shaft 25 supported in bearings carried by the table 5 and having a. bevel pinion 26 meshing with a bevel pinion 27 on the main driving shaft 13. As the main driving shaft rotates, intermittent rotation of the turret head shaft is effected. Sleeved on the turret head shaft 22 is a large bevel gear 27 (Fig. 8) carrying a spur gear 28 in mesh with another spur gear 29 carried by a vertical shaft 30 supported in bearings on the tables 5 and 6, the lower end of the shaft 30 having a bevel gear 31 ig. 3) meshing with a similar bevel gear 32 on a short horizontal shaft 33, the latter having a mutilated gear 34 driven by a mutilated gear 35 on the end of the main driving shaft 13. Thus as the main driving shaft rotates, rotation of the bevel gear 27 at intervals is effected, the bevel gear27 rotating on the turret head shaft 22.

' 22 is a turret head 36 keyed to the shaft 22 the extent of the channels 47. Also in the uum ports 42 in the so as to rotate therewith. The turret head 36 has a plurality of horizontal radially extendin bearing arms 37 rotatable therewith. Rotataily mounted on the outer end of each arm is a cylindrical former ormandrel 38 (Fig. 8). There being six bearing arms in the present embodiment, there Wlll' be. six (6) formers or mandrels. Inasmuch as they construction of and operations connectedwith each former and its bearing arm are the same, a-description of one will suffice for all. The numeral 39 indicates a sleeve ro tatable on the arm 37 and having abevel. pinion 40 in mesh with the bevel gear 27. The former 38 is illustrated as an integral part of the sleeve 39. The side of the former 38 has a vacuum port 41 for gripping one of the flange strips, and the front end of the former has one or more vacuum ports 42 for gripping the head strips. The bearing arm 37 has a circumferential or annular groove 43, and the former 38 has a vacuum conduit 44'leading from the side port 41 to this annular groove. In the arm 37 is avacuum conduit 45 (Fig. 9) in communication with the annular oove 43 and also opening into the upper face of the turret head 36 as indicated at 46 (Fig. 8). For the purpose of having a large vacuum gripping area at the side of the former 38, the cylindrical side surface may be flattened and recessed, or dished slightly, as by the provision of the channels 47, which communicate with the port 41 so that the gripping effect will take place throughout arm 37 is a second vacuum conduit 48 by means of'which the vacuum ports 42 in the end of the former are energized and de energized. In the present embodiment the vacuum ports 42 are openings 1n a removable vacuum plate 49 fastened in a recess in the front end of the former 38. On the inner face of the vacuum plate 49 is a circular groove 50, (F g. 10) providing with the bottom wall of the recess in the former, an annular vacuum con-' duit, having branches 51 respectively in communication with the openings or vacplate. The vacuum conduit 48 leads to 'a port 52 in the end of the arm 37. The numeral 53 (Figs. 8 and 11) indicates a fiat keeper plate set over the end of the arm 37 and having a pin 54 to prevent rotation on the arm, the keeper plate being fastened by a screw 55. In this keeper plate is an opening or port 56 in registry with the port 52 at the end of the vacuum conduit 48. The port 56 registers with the annular groove 50 on the inner face of the vacuum plate 49. In this way the former 38 is retained on the arm 37 by the keeper plate 53, and the vacuum ports 52 in the end of the former are at all times in communication with the vacuum conduit 48,

the end of the former 38 maybe fastened.

in place by screws58, and rubber cushions 59 may be interposed between the inner face of. the vacuum plate and the former to assist in steadying and rectifying the vacuum plate.

Overlying the upper face of the turret head 36 is an automatically operable valve or valve plate 60 having a circular chamber or oove 61 withwhichthe vacuum ports 46 and 57 of the vacuum. conduits45 and 48 are adapted to register at'certain portions of their rotary path. Communication between the exhaust device and the vacuum conduits 45 and 48 is established and cut off by this single valve. Communicating with the chamber 61 is a flexible vacuum pipe 62 which, through suitable piping as 63, communicates with the vacuum tank 11. When the vacuum conduits in the arms are in communication with the chamber 61 in'the vacuum plate 60 they are also in communication with the. vacuum tank 11 through thepipe 62 and 63 so that the vacuum ports at the sides and the ends of the formers are energized.

-When the vacuum ports 46 and 47 in the turret head pass'out of communication with the chamber 61 they register respectively with atmospheric openings 64 and 65 (Fig. 9) in the plate 60 so that the vacuum effect at the side and at the end of the former is.

relieved. In order to energize and deenergize the vacuum conduits in the arms at certain times the valve 60 is oscillated, and this may be effected by means of a connectingrod'66-(Figs. 1 and 2) pivoted to the valve 60 and to a bellcrank lever 67 operated by a connecting rod- 68 from a cam 69 on the main cam shaft 20, the cam being shaped to effect the movement of the valve at the predetermined time desired. The valve plate 60 is pressed against the turret head by a spring 69'.

The operations of .the turret head andthe formers will now be clear. The continuous rotation of the main driving shaft 13 will cause intermittent rotation of the turret head 36 with consequent intermittent translation of the bearing arms 37 and the formers 38 in an endless path. At the stations of rest in the endless path the head strips and the flange strips hereinbefore referred to are applied to-the formers as will be more fully explained in detail hereinafter, rotation of theformers at their stations ofrest participating bevel gear 27 which is rotated at that time through the train of gears 28 and 29. Thereupon translation of the formers is resumed by rotation of the turret head, the bevel gears 40 rolling on the then stationary gea 27 to their next positions of rest. v

Referring now to Fig. 1 of the drawings the several formers 38 are indicated at the six g5) stations of rest lettered respectively, A, ,C, D, E, At station A the head strip, or blank, is applied across the front end of the former as illustrated diagrammatically in Fig. 34. This strip may be provided in any suitable manner but in the present embodiment is taken from a strip or web of soft, readily frangible paper. This paper web is indicated by the numeral 70 and comes from supply roll 71 rotatably supported on bracket 72. The web 70 passes between a pair of web advancing feed rollers 73 which intermittently move the web to position to have head strips severed therefrom and supplied to the formers at station A. The feed rollers 73 have suitable rubber covered surfaces for frictionally feeding the i web and are pressed toward each other by the spring 74, the tension of which is adj ustable. Intermittent operation of the rollers is effected by intermeshing gears and 76 thereon driven by a larger gear 77 on a shaft 7 8, the gear 77 having a ratchet wheel 7 9 with which cooperates a pawl, 80 operated from the cam 81 through the instrumentality ofthe rock lever 82 and connecting rods 83 and 84 (Fig. 14), a spring 85 being employed to urge the cam follower 86 against the cam 81.

The numeral 87 indicates a reciprocal head strip feeder which, in the present embodiment, is a circular male cutting die adapted to sever the strips from within the margins of the web 70 and to apply the severed strips to the formers at station A. The die 87 is a cylindrical hardened steel block which cooperates with a female cutting die 88 to sever the head strips. 1n the advance end of the die 87 are vacuum ports 89 at the ends of vacuum conduits 90, these conduits communicating with a vacuum pipe 91 movable with the die and having a flexible extension 92 communicating with a pipe section 93 which latter extends. to a rock plate 94 in registry with a port 95 in said plate. Lying closely against the rock plate is a stationary cut-ofl' plate 96 having a port 97 with which the port 95 is adapted to move into and out of registry. The stationary cut-ofi' plate 96 is pivoted on the bracket 98 and has a bearing'projection 99 on which the rock plate 94 is sleeved, a spring 100 being interposed between the rock plate and a collar 101 on the 95 bearing 99 to keep the two plates in close contact.

Oscillation or rocking of the plate 94 may be effected through a connecting rod 102 one end of which is pivoted to the plate, the other end being connected to a cam follower 103 which cooperates with a cam 104 on the main cam shaft 20, a spring 103 assisting in the cooperative result. By movement of the plate 94, energization and deenergization of the vacuum ports in the die 87 is efiected independently of that of the ports in the formers, or mandrels 38. The port 97 is in communication with the vacuum tank by way of the pipe 104'.

Between the feed rollers 7 3 and the supply roll 71 the web is acted on by a spring tension device consisting of a frame 105 pivoted intermediate its ends at 106 to a stationary bracket 107. One end ofa spring 108 is attached to the frame 105 and the other end to the bracket so that the spring acts to rotate the frame 105 in one direction, the extent of its movement being determined by a stop pin 109 which cooperates with the side of the bracket 107 The head strip web 70 coming from the supply roll 71 passes over the antifriction rollers 110 and 111 carried b the frame 105 and thence over a guide rol 112 to the feed rolls 73. When the feed rolls 73 are operated to advance the web 70 past the cutting die 87, the tension frame 105 rotates die 87 moves in a cylindrical housing 113 carried by bracket 114 upstanding from'the table 6. This bracket serves as a support for a reciprocal rod 115 to which the cutting die 87 1s removably fastened 'by the screws 116'. To the rear end of the rod 115 is pivoted one end of a link 116 the oppo- 'site end being ivoted to one of a pair of toggle links 11 in turn connected to a link 118. The link 118 is pivoted to an-arm 119 of a rock shaft 120, the latter having another arm 121 connected by a link 122 to a bellcrank 123 which in turn, through link 124, is actuated by a cam 125 on the to bellcrank lever 140 which, through connecting rod 141, cooperates with the cam 142 on the main driving shaft 13, aspring 143 being employed to maintain cooperative relation between the cam follower and the cam 142. r

The web 70 having been advanced into position in front of the cutting die 87, the

link 118 will be moved upwardly by the,

cam 125 and rock the link 16 on'the guide rod 127 thus advancing the die 87 until a 'head strip is severed from the web. The

link 116, which thus acts as a lever, will fulcrum on the pin 130 held from movement vat this time. vThereupon, by operation of the cam 142 the lever 134 will be actuated in the proper direction to further advance the die 87" and the severed strip to the former 38. .Upon the severance of the strip 138 the vacuum ports 89 in the die 87 will be energized to ip the severed strip and hold it until it is applied across the front end of the former 38. Thereupon the vacuum gri of the die uponthe strip will be relieve by movement of the rock plate 94 of the-vacuum control device, and the end ports of the former 38 will be energized by movement of the valve plate 60 and cause the severed strip to be held on the former 38. The timin of the energizing and deenergizing of t e vacuum ports in the die and formerrespectively will be such as to deenergize the ports in the die prior to the retractive movement of the die and prior to rotary movement of the former from station A. .It will be observed that 150 is indicated the supply roll for the former 38.

The former with the head strip gripped to its front end will then be translated to station B. At this station a flange web, or flange strip, of fairly heavy paper is coiled around the former 38 so as to abut the head strip 1. The coiling is affected by rotation of the bevel gear 27 which rotates the former a plurality of times at station E, in the present instance three times, so as to provide a three .ply coil. In the present embodiment the devices for applying the flange strip. at station B are as follows :(-Figs. 1, 2, 4, 19, 20 and 21) At flange strip. The strip 151 coming from this roll passes over a guide roll 152 on a glue tank 153, thence over a .glue roller 154 dipping into the glue in the tank, thence over another guide roller 155 and thence over a flange strip feeding Wheel 156 the operation of which wheel advances the flange strip from the. supply roll 150 and provides a 100 or slack of such strip as illustrated at 15 The feed wheel 156 and the devices .for energizing the vacuum ports therein .may be s1m1lar to the pneumatic strip feeding wheel disclosed in applicants co-pendmg application No. 435,827 filed Januar 8, 1921, and reference ismade to said application for full disclosure thereof.

It 1s sliflicient to state herein that the feed wheel 156 is rotated continuously by means of. a belt 158 cooperating with a pulley"159 on the shaft of feed wheel 156 and a pulley 160, which latter is rotated by a sprocket chain 161 driven from the main cam shaft 13. As will be understood from the com- 'panion application referred .to the feed of port 41 in the former 38. Reciprocal movement of the gripper is effected by a cam 165 on an auxiliary cam shaft 166, this cam co operating with the cam roll 167 .on a slide rod 168 pivotally connected to a rock lever 169 in turn connected to the lower gripper jaw 163 by a rod 170, the feeding movement of the gripper being effected by a spring 171, and the retractive movement being positively eflected by the cam 165. The numeral 172 indicates a knife to sever the web 151 into flange strips, the movements of the knife 172 being effected by another cam 173 on the shaft 166. At 174 is indicated a presser roller which cooperates to press the flange strip toward the former as the former former. The presser roll 17 4 is moved toward the former 38 by a spring 175 and away therefrom by another cam 176 on the shaft 166. It may be stated that the details of the devices for o eratin presser roll 174 may e the same as set forth in the companion application above'referred to. In the present instance, however, the presser roll 174 has a portion 177 which is out of contact with the flange strip during the pressing operation, and has circular flanges 178 which contact with the strip to effect the pressing.

The glue roller 154-coats the flange strip 151 lengthwise with separate lines of glue, one line on each margin and one line inter the knife 172 and the

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