US1147308A - Sheet-feeding mechanism. - Google Patents

Description

HI 0'. CAYLOR- & w. A. SCOTT.

SHEET FEEDING MECHANISM.

APPLICATION FILED SEPT-28,1914- Patented July 20, 1915.

GSHEETS-SHEETI H. D. 0 AYLOR & W. A. SCOTT. SHEET FEEDING MECHANISM.

' APPLICATION FILED SEPT-28.1914. 1,147,308. Patented July 20, 1915.

6 SHEETS-SH ,EET 2.

W/TNEUSES INVENTORSI A TTORIVE K5.

H. D. CAYLOR & W. A. SCOTT.

SHEET FEEDING MECHANISM.

APPLICATION FILED SEPT-28,1914.

1,147,308. Patented July 20, 1915.

6 SHEETSSHEET 3.

WITNESSES m/ l/E/V 70/29 A TTORNEI H. D. CAYLOR & W. A. SCOTT.

SHEET FEEDING MECHANISM.

APPLICATION FILED SEPT-28,1914.

Patented July 20, 1915.

6 SHEETSSHEET 4- WITNESSES:

H. D. CAYLOR & W. A. SCOTT.

SHEET FEEDING MECHANISM.

APPLICATION FILED SEPT.28, 1914. 1,147,308. Patented July 20, 1915 6 SHEETSSHEET 5.

W/TNESSESE H. D. CAYLOR & W. A. SCOTT.

SHEET FEEDING MECHANISM.

Fig 13.

' APPLICATION FILED SEPT-28,1914- Fl 14. /7 o I i as 0 I I 1H o i 4.7 o I I as 5' so? I- o I .56 a A56 1 55 4. I 55 I 53 5a am I FT /6 L WITNESSES.-

6 SHEETS-SHEET 6.

\ x s b illa'san, $06

BY mm W A TTORNEKS STATES PATENT OFFICE.

HARRY D. CAYLOB AND WILLIAM A. SCOTT, OF INDIANAPOLIS, INDIANA, ASSIGNOBS T0 NATIONAL CONIN'G MACHINERY COMPANY, OF INDIANAPOLIS, INDIANA, A

CORPORATION OF mm A.

SHEET-FEEDING MECHANISM.

Specification of Letters Patent.

\ Patented July 20, 1915.

Original application filed October 18, 1913, Serial No. 796,059. Divided and this application filed September 28, 1914. Serial No. 868,884.

T 0 all whom it may concern.

Be it known that we, HARRY D. CAYLOR and VILLIAM ALLISON Sco'rr, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Sheet-Feeding Mechanism, of which the following is a specification.

This invention is a division out of our application for patent for machine for mak ing paper vessels, Serial No. 796,059, filed October 18, 1913, and relates to means for transferring the paper blanks.

The object of the invention is to prov de a machine with a receptacle within which blanks of the desired and required shape and material are placed, and which will automatically feed the blanks in proper position to the bottom of the receptacle and then automatically, separately and successively take the blanks from the bottom of the pile through the bottom of the receptacle and transfer it away from the receptacle.

We accomplish the above and other objects which will hereinafter appear by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a top plan view of our invention. Fig. 3 is a fragment in top plan view, on a larger scale, of that portion of the machine where the paper blank is handled in its flat condition and positioned to be bent into conical form around a mandrel which is shown in dotted lines. portions of the superimposed structure being broken away to show the underlying parts. Fig. l is a continuation of Fig. 3 on the same scale, showing the mandrel in dotted lines around which the truncated conical bodies are formed. Fig. 5 is a vertical section of the second suction head and its associated parts, taken on the line 77 of Fig. 15. Fig. 6 is a vertical section on the line 8-8 of Fig. 3, and shows the mechanism in elevation for raising and lowering the suction head which takes the blanks from the receptacles seriatim and for moving the head horizontally to its transfer position. Fig. 7 is a side elevation of the cam-wheel shown at the bottom of Fig. 6, illustrating the opposite side of the wheel from that shown in Fig. 6. Fig. 8 1s a vertical section through the receptacle and suc- Fig. 2 is a front elevation of same.

tion head transversely of the head with the head in position at the bottom of the receptacle to remove a blank. Fig. 9 is a vertical section on the line 11-11 of Fig. 3, showing the assembly of the suction head shown in Fig. 6, with the carriage by which it 18 supported and showing the three-way valve which controls the suction. Fig. 10 is a detail in side elevation of the mechanism connected with the same lever which controls the movement of the suction head shown in F ig.. 6 for automatically operating the valve which controls the supply of air to the suction head. Fig. 11 is a horizontal section on the line l3-13 of Fig. 10, showing the same parts in top plan view as are illustrated in elevation in Fig. 10. Fig. 12 is a section on the line 1l1l of Fig. 11, and illustrates the spring mechanism located within the hollow horizontal shaft of this device. Fig. 13 is a fragment in top plan view showing the tracks and the sliding carriage thereon from which the second suction head is suspended. Fig. 11 is a side elevation of the same parts showing the second suction head depending from the carriage and showing the first suction head in dotted lines under the second one, in position to transfer a olank. Fig. 15 is a section on the line 1T-17 of Fig. ll, showing the sliding carriage and second suction head in elevation. Fig. 16 is a section on the line 18-18 of Fig. 14, showing the sliding carriage and second suction head in elevation.

Like characters of reference indicate like parts throughout the several views of the drawings.

The main frame of the machine is indicated at 5 and 6 is one of the principal driving shafts of the machine.

Referring to Figs. 1, 2 and 10, is shown in which flat blanks of or other suitable paper material cut to the required size and shape are placed. The tapering sides of the hopper direct the blankswhich may be more or less irregularly stacked, into proper position at the bottom of the hopper to be removed one at a time. through an opening in said bottom by a suction head 3. This head is hollow and its top plate is-perforated, and in order to cause the blanks to be separated and removed one at a time we curve this perfoa hopper2 tag-board, previously ing the bottom blank at each visit ofthe.

suction head to the hopper, from the ones above. The suction head 3 is supported by an integral sleeve 7 whichis mounted telescopically on a pipe 8 extending up vertically from a tubular carriage 9. The tubular carriage 9 slides telescopically on a pipe 10. (See Figs. 2 and 9.) The pipe 10 is horizontal and connects with a vertical pipe 11 through an elbow which contains a threeway valve. 12. adapted to form communication between the two pipes 10 and 11,.and to atmosphere, to enable the vacuum in the head 3 to be controlled, and also to be broken forthe quick release of 'a blank. The automatic control of the valve will be hereinafter described. The downward travel of the head 3 is limited by the contact of its sleeve 7 with a shoulder 13, (see Fig. 6), on the carriage 9, and the lowering of the head is quickened and made more positiveby a.

spring 14, the spring being wrapped around the rod 14 between a head on the end of the rod anda' lug on the carriage 9.

Mounted on an extension of the carriage 9 is a bell-crank lever, the upper end of which has a toothed segment 16 which engages with a rack carried by the sleeve 7-.

The lower arm of the bell-crank lever is connected by a link 17 with the upper. end of a long bent lever 18 fulcrumed to a bracket from the frame of the machine. The lever 18 is oscillated to first raise or lower the head and then move the carriage on the pipe 10, by connection with a cam in the wheel 19 on the shaft 6; and, on account of the conical shape of the finished product requiring the blanks to be glued in a plane at less than a right angle to the longitudinal axis of the cone-carrying mandrels on which the blanks are folded and on which the construction of the bottle is continued, we provide a connection between the lever 18 and cam wheel. 19 which partakes of the functions of a swivel and of a universal joint. A pin entering the cam-slot in wheel 19 is chrried by a lever 20 which has a lower bifurcated end straddling the shaft 6 to' prevent displacement. -The upper end of lever 20 hinged to a rod 21. The rod 21 is in two parts which are connected by a swivel 22. The upper end of the rod isbiand pivoted in the fork is a journal box 23 in which the pivot-pin connecting the foregoing structure with the short arm of lever 18, is journaled.

After the suction head 3 has removed a paper blank from the hopper the head is moved bythe sliding of the carriage 9 in pipe 10 to a position under the suction head 4 as shown in dotted lines in Fig. 14. The blank is released from the head 3 by changing the position of the valve on the elbow between pipes 10 and 11, permitinga-ir to enter through the pipe 10. The mechanism for automatically opening the valve is illustrated in Figs. 9 to 12 inclusive. An arm on the valve stem is connected by rod 24 with an arm on a lower horizontal barrel 25, 1

from the hub, is a torsion spring 28 the purpose of which is to impart the required potential energy to the barrel when the latter is released to cause its arm, acting through the rod 24, to throw the valve between the pipes 10 and 11 quickly.

Mounted in a fixed manner on the barrel .are two notched disks 29 and 30, and supportedfrom the frame of the machine by brackets are latches 31 and 32, which are alternately in engagement with the notch of a corresponding one of the disks 29 and 30.

The latches are drawn'toward each other by a spring 33 and one of them is held out of contact withits notched disk by a pm 34, passing through an extension below the barrel of the lever 26.. A throw of the lever 18 will release the barrel 25 by releasing one of the latches 31 or 32, and the latch previously out of engagement will immediately lock the shaft so a return movement of the lever 18 will stress the spring 28 for an opposite throw of the valve when the latch is correspondingly released. This valve mechanism is so timed that when the head 3 has reached a position under the head 4, by the action of the lever 18, the suction in head 3 will be removed coincident withthe blank being icked up by the head 4.

Afterthe head-4 has obtained possession of the paper blank delivered to it by the head 3 it subjects the blank to the mechanism for applying glue to one of its edges and then delivers the blank to the mechanism for folding itinto conical form and retains posse$ion untilit is seized by pilot pins and held in position on a mandrel ready for the foldingmechanism to act. The head4is suspendedfrom a carriage 35 which has a reciprocatingtravel on track rails 36. Thecarriage passes the glue wheel 37 which is located between'the rails 36.

it deposits its blank. The purpose of this is to allow the perforated plate to change from a horizontal position to an angular one parallel with the adjacent side of the mandrel after it has reached the latter with a paper blank. This swinging of the plate is caused by a rod 285 (see Figs. 13, 14- and a) which )asses through the head and is connccteil )V a link with the perforated plate. A roller on the other end of the rod contacts with a cam 286 (see Figs. 1, 2 and 3) which lowers the rod by a longitudinal movement of the latter. The edges of the perforated plate and head 4 are connected y a bellows 288. The air in the head 4: is exhausted through a pipe 42, which telescopes in a pipe 43, the latter being connected with a suitable exhaust not shown, and located in pipe 42 is a three-way valve 44, (see Fig. 5), similar in construction and function to the three-way valve between pipes 10 and 11.

Mounted upon the carriage 35 1s a barrel similar to barrel 25 already described, within which is the same construction of torsion spring as 28. A lever 45 secured to the outer end of the torsion s wing is thrown by contact with trips, here s lOWll as rollers '16, secured to a rail of the track at the desired points. The notched disks 29 and 30 are engaged by latch bars 47 and 48, pivoted to the carriage and ressed into contact with the disks by springs 50, shown in dotted lines in Fig. 14. The notches in the disks are placed so that only one latch will be in engagement at a time. The release will he by contact of the outer ends of the lovers with trips 51 (see Fig. 4:) secured to a rail. The trips will be located at proper points to open and close the valve at the right times.

We claim -1. In a machine for the manufacture of paper vessels, the combination of a holder for blanks to form the sides of the vessel having a bottom discharge opening and sides tapering toward said bottom openm a suction head adapted to move throu h tie opening in the bottom of the holder into contact with the bottom blank and withdraw it by suction and the downward travel of the head, the top plate of said head being curved and perforated at intervals of its entire surface and the highest portion of the head being midway of the ta ering sides of the holder to center the blank on the head.

2. In a machine for the manufacture of paper vessels, the combination of a holder for blanks to form the sides of the vessel, suction means for taking such blanks one at a time through the bottom of the holder, means for transferring the blank taken from the bottom of the holder and suction means for securing the blank to said transferring means.

3. In a machine for the manufacture of paper vessels, the combination of a holder for blanks to form the sides of the vessel having a discharge openim through its bottom, a suction head adapted tomove through the opening in the bottom of the holder into contact with the bottom blank and withdraw it by suction and the downward travel of the head, the top plate of said head being perforated and lower at its edges than at intermediate portions and lower portions being also perforated.

4. In a machine for the manufacture of paper vessels, the combination of a hoppershaped holder in which blanks to form the sides of the vessel are stacked, said holder having its discharge opening in its bottom, a suction head having vertical reeipriazating movement through the bottom opening in the hopper, the plate of the head coming closest to the blanks when the head is in the hopper being perforated and also raised above the edges of the plate along the medial line between the straight edges of the blank.

5. In a machine for the manufacture of paper vessels, the combination of a holder for blanks to form the sides of the vessels having a discharge through its bottom for said blanks, a suction head adapted to act upon the middle of the lowest blank and withdraw it singly from the holder, a second suction head acting upon the opposite side of the blank at one side of the middle after it has been withdrawn from the holder, means to cause the first suction head to release the blank when the second one takes it, means to move the second suction head to the place of discharge of the blank, and means to discharge the blank.

6. In a machine for the niamifacture of paper vessels, the combination of a holder for the blanks to form the sides of the vessel, a suction head to draw blanks one at a time out of the holder and acting upon the middle of the blank, a second suction head acting at one side of the middle and on the opposite side of the blank after it has been withdrawn from the holder by the first head, means destroying the vacuum to cause the. first suction head to release the blank when the second one takes it, means to more the second suction head to the place. of deposit of the blank, and means destroying the vacuum in the second head to release the blank.

7. In a machine for the mmiulaeture of paper vessels, a holder containing a supplv of blanks, a reciprocating suction head for taking one blank at a time from said holder. and a second suction head reeiprocating in a different plane, which second head takes the blank from the first head by contact with the opposite side of the blank and transfers it.

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8. In a machine for the-manufacture of paper vessels, a holder containing a su ply of blanks, a reciprocating suction hea for taking one blank at a time from said holder through its bottom, a second reciprocating suction head which takes the blanks from the first head by contact with the opposite side of the blank and transfers it, pipes connected with said heads through which air is exhausted, and valves in said pi esto open and close communication throng the plpes and also from the interior of the pipes to atmosphere.

9. In a machine for the manufacture of paper vessels, a holder containing-asu ply of blanks, a reciprocating suction hea for taking one blank at a time from said holder through its bottom, a second reciprocating suction head to which the blank is transferred by the first suction head, and means to break thesuction in the first head coincident with the taking hold of the blank by suction by the second head.

10. In a machine for the manufacture of paper vessels, a holder containing a su ply of blanks, a reciprocating suction bea for taking one blank at a time from said holder through its bottom, a second reciprocating suction head which takes the blank from the lirst head and transfers it, telesco ing pipes through which air is exhausted rom the respective heads, valves in said pipes controlling the passage of air therethrough and also providing communication to atmosvhere, means to move the first head to the blank holder of the second 'head, automatic means to operate the valve andbreak the suction to the first head when in position to transfer its blank to the second head, means to move the second head into position to transfer its blank, and means to operate its valve and break the suction in the head to release the blank to said forming means.

11. In a machine for the purposes specified, suction heads for taking body blanks one at a time and transferring them, pipes connected with an exhaust means and with said bends, valves in said pipes having stems and arms, a rockin barrel, a lever loosely mounted on the barrel, a torsion spring connected at one end to the hub of said last lever and at the other end to the interior of the barrel, a rod connecting the last lever with the arm on a valve, means for moving the suction heads to transfer the blanks, pawl and ratchet means to hold the tension of the torsion spring in the barrel, and means connected with the means for moving the suction heads to move the pawls in a manner to release said ratchet means and sprin".

12. In a machine for the purposes specified, suction heads for taking body blanks one at a time and transferring them, air exhaust pipes in telescoping sections on one of through the toot which ahead is mounted, a valve in the pipes to each head'having a stem and an arm, head transferring means, a rocking barrel connected with said valve arm, a lever mounted loosely on the barrel and connected with said head transferringmcans, a pair of notched disks mounted on the barrel, a latch bar for each disk, springs to press the latch bars into normal engagement with their respective disks, means by the rocking of the barrel for alternately releasing said disks, and a torsion sprin connected at one end with the interior of the barrel and at the other end with said lever mounted loosely on the barrel.

13. In a machine for the manufacture of paper vessels, a receptacle holding paper )lanks from which the vessels are formed, said receptacle having a bottom opening, a suction pipe extending under the receptacle, a hollow carriage telescopically mounted on said pipe, a pipe extending vertically from the carriage, a sleeve mounted telescopically upon said last pipe, a suction head on the upper end of the sleeve, and means for moving the carriage so the head will be under the bottom opening in said receptacle and for then raising and lowering the head to remove a blank.

14. In a machine for the manufacture of paper vessels, a receptacle holding paper lanks, said receptacle having a bottom opening, a suction pipe extending under the receptacle, a hollow carriage telescopically mounted on said pipe, a vertical pipe extension from the carriage, a sleeve telescopically mounted on the vertical pipe extension, a suction head on the upper end of the sleeve, a vertical rack on the sleeve, a bell-crank lever mounted on the carriage having a toothed segment on one arm engaging the rack on .the sleeve, a bent lever pivoted to the frame of the machine, a link connecting the upper end of the last lever with said bellrcrank lever, and cam means for moving the said bent lever.

15. In a machine for the manufacture of paper vessels, a receptacle holding paper )lanks, said receptacle having a bottom opening, a suction pipe extending under the receptacle, a hollow carriage telescopically mounted on said pipe, a vertical )lpt, extension from the carriage, a sleeve telescopically mounted on the vertical pipe extension, a suction head on the upper end of the sleeve, a vertical rack on the sleeve, a lug on the sleeve, a lug on the carriage below the one on the sleeve, a rod fastened to the upper lug and passing through the lower one. an adjustable nut on the threaded lower end of the rod, a spring between said nut and said lower lug, a toothed segment engaging the rack on the sleeve said segment being mounted on the carria e, and means acting first Tied segment to move it to the limit of its travel and then to move the carriage on its supporting pipe.

16. In a machine for the manufacture of paper vessels, a receptacle holding paper blanks, said receptacle having a bottom opening, a suction pipe extending under the receptacle, a valve in said pipe controlling a discharge through the pipe and also to atmosphere, a hollow carriage telescopically mounted on said pipe, a vertical pipe extension from the carriage, a sleeve telescopically mounted on the vertical pipe extension, a suction head on the upper end of the sleeve adapted to be brought into contact with the blanks through the bottom of the receptacle, means to move the sleeve to the limit of its travel and then to move the carriage, means to operate the valve in the suction pipe, and means to operate said last means from the sleeve and carriage moving means.

In witness whereof, We have hereunto set our hands'and seals at Indianapolis,'Indiana, this 21st day of March, A. D. one thou sand nine hundred and fourteen.

HARRY D. CAYLOR. [L.s.] WILLIAM A. SCOTT. [L.s.] Witnesses:

J. A. MINTURN, I. L. LARSON.

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