US890464A - Gluing and folding machine for flexible boxes. - Google Patents

Description

No. 890,464. 7 PATENTED .TUNE 9, 1908.

E. G. STAUDE.

GLUINGAND FOLDING MACHINE'EOR FLEXIBLE BOXES.

APPLIOATIQN FILED FEB. z3, 1905.

. Y 4 SHEETS-SHEET 1.

No. 890,464. PATENTED JUNE 9, 1908.

. E. G. S'IAUDE. GLUING AND FOLDING MACHINE POR FLEXIBLE BOXES.

APPLICATION FILED FEB.23, 1905.

` 4 SHEETS-SHEET 2.

OO le No. 890,464. I' PATENTED JUNE 9, 1908.

' E. G. STAUDE.

GLUING AND FOLDING MACHINE EUR FLEXIBLE BOXES.

. AAPPLICATION FILED 11313.23, 1905.

4 SHEETS-SHEET s.

No. 8190.464. I PATENTED .TUNE 9, 1908.

E. G. STA-UDB.

APPLIOATION'PI'LED 212.23, 1905.

\ 4 SHEETS-SHEET 4.

EDWIN G. STAUDELOF MINNEAPOLIS, MINNESOTA.

i GLUING AND FOLDING MACHINE FOR FLEXIBLE BOXES.

Specification of Letters Patent.

Patented June 9, v1908.

Application led February 23, 1905. Serial No. 246,840.

To all whom it may concer/nf: Be it known that I, EDWIN G. STAUDE, of Minneapolis, Hennepin county, Minnesota, have invented certain new and useful Imrovements in Gluing and Folding Machines vor Flexi-ble Boxes, of which the following Vis a specification.

The object of my invention is to provdie a machine wherein the shells or blanks for an size of flexible box can be glued and folde v whereby one machine iscapable of turning. out boxes of different size for use in acking various kinds of manufactured artic es particularly cereal roducts.

A further object is to provide a machine little floor space, and especially adapted for part of this speci cation, Figure 1 is a lon i factories ,where the machinery is crowded together and economy in the use of space is essential.

The invention consists generally 'in providing a gluing and folding machine wherein the feed mechanism, the device for ap lying the glue, the folding and packing evices are all laterally adjustable to permit them to be moved toward or from each other and adapted for handling blanks or shells of different size.

Further, the invention consists in improved folding devices that bear continuously on the sides of the blank during the folding operation.

Further, the invention consists in imroved means for discharging the folded lanks.

In the accom anying drawings forming ,Y tudinal vertical section of a gluing and fo d- 1 end ofthe mac line.

. 2 1s a plan View ofthe same.

ing machine embodying umy invention. Fig. Fig. 3 is a sectional view on the line .ia-.1' ol' Fig. 2-looking toward the acking devices at the rear Figs. 4, 5 and 6 are fra mentary sectional views illustrating the folds in the successive steps in the operation of folding the blank. Fig. 7 is a sectional view on t e line y--y of Fig. 2. Figs. 8 and 9 are detail sectional views illustrating the mechanism for operating the folders and feeding the' blanks thereto.

In. the drawings, 2 represents a suitable frame upon which the operating mechanism of the machine is mounted.

3 are brackets provided at the receiving end of the machine and forming guides for bars 4 that slide in and out on the inner edges of said brackets, and are connected by a cross bar 5 having a longitudinal slot 6. A series of arms 7 are mounted on the bar 5 and have longitudinal slots 8 to receive bolts 9 that pass4 down through said slots and the one in said bar 5 and allow both longitudinal and lateral adjustment of the arms 7 to ada t them for the different size blanks or shells that it is desired to feed into the machine. `The forward ends of the arms project under the package of blanks asv it lies in the hopper, the upper surfaces of said ends being preferably inclined slightly, as indicated in Fig. 1, and provided with feed plates 10 whose forward edges engage the outer edge of the bottom blank and advance it into the machine. The packagesof blanks rest at their outer edges upon the arms 7, and at their inner edges are supported on the arms l l1 that project j horizontally parallel with the side adjustable wall 12 of the hopper to# ward the outer wall 13 that is mounted on bars 14 adjustable on vthe brackets 3 by means of slots 15 and bolts 16. By loosening the bolts 16 the outer Wall of the hopper cali be readily adjusted back and forth to suit the size of the blanks. The arms 11 are adjustably secured on a cross bar 11 having a .longitudinal slot 11 which permits the width of the hopper to be increased or decreased according to the size of the box blanks. I also prefer to provide brackets 1,7 on the wall 13 having longitudinal slots 18 and thumb nuts 19 to permit the adjustment of said brackets toward or from the package of blanks. narrow slot oropening 2O is provided beneath the rear wall, and blocks 21 vertically adjustable by means of a screw 22 are rovided to increase or decrease thes widt of the slot accordingto the thickness of the stock and prevent more than one blank from being fed forward at a, time.

Cross bars 23 are preferably arranged near the inner side of the hopper to which the adjustable Walls 12 are secured and on which the blocks 21 are supported.

To impart a reciprocating movement to the feed device a shaft 24 is mounted in the machine frame having an arm 25. connected by a link 26 with the cross bar 5, One end of the shaft 24 is connected by a rod 27 with .a crank shaft 28 mounted on the machine frame and provided with a driving pulley 29. Bell cranks 30 are pivoted on the machine frame at 31, and have arms 32 provided With bearings for a shaft 33. The other arms 34 of the bell cranks are provided with rods 35 sliding in guides 36 on the machine frame between which and the ends of said rods coil springs 38 are arranged whose tension normally tends to depress the shaft 33 and hold its pulley 39 carryingy a cord belt 40 down upon the upper surface of the blank. A shaft 33 and its pulley are -driven from the driving shaft 28 through gears 41 and 42. A yoke 43 is loosely mounted on the shaft 33 and carries an idle wheel 44 that is normally held in a depressed position by a spring 45. A pulley 46 is mounted on the shaft 28 beneath the pulley 39, and a belt 47 is carried by said pulley 46 and extends to a pulley 48 mounted at the delivery end of the machine upon a shaft 49. The blankspass between the belt 47 and the cord 40 and are fed forward by frictional contact with said belt and cord. 1 also provide pulleys 50 upon each side of the pulley 46 connected by cords 51 with idle pulleys 52 arranged in advance of the s iral packers or discharging devices, as will) hereinafter appear. These pulleys 50 are adjustable back and forth on the shaft 28 to adapt them for feeding blanks of different size. Bars 52 are secured to the cross bars 23 and extend horizontally above the cords- 51 to hold the middle portion of the blanks thereon and prevent slipping, and initial folders 53'are mounted on a cross rod 54 and have turned up inner ends 55 that are adapted to engage the sides of the blank and raise the same sufficiently to be engaged by the revolving folders, as will hereinafter appear. The blanks after leaving the`hopper pass below the bars 52 and are held thereby upon the feed cords, but pass above the initial folders 53 whose ends 55 engage and lift up the edges of the blank.

Adjustably mounted on the shaft 28 is a disk 56 operating in a glue receptacle 57 and adapted to smear the edge of each blank with glue as it passes to the folders. The glue receptacle is of sufficient size to allow' a consid erable range of adjustment of the glue wheel' or disk. The shaft 28 is provided with lgears 58 adjustable thereon to increase or decrease the distance between the folding mechanism and meshing with gears 59' on shafts 60 that have adjustable bearings 61 on the rodI 54.

These shafts 60 extend to the rear end of the machine and have bearings in yokes 62 that are. laterally adjustable in longitudinal slots 63 provided in cross bars 64 on the machine frame. Near the forward ends of the shafts 60 gears 65 and 66 are secured meshing with similar gears 67 and 68 on vertical studs 69 and `70 that revolve in arms 71 and 72 that project horizontally from the yokes 62.

pon these studs 69 and 70 I provide hubs 73 and 74 carrying wings 75 and 76 that are spirally arranged, but extend only partially around the hubs and are ada ted to engage the sides of the blank and old them over upon the middle portion keeping during the folding operation 1n continuous contact with the blank and without retarding its continuous, ra id movement in any way.r The tops of the iubs are rounded, as indicated in lig. 1, to allow the blanks to sli easily over them. A bar 77 is provided mi way between the revolving folders over which the belt 47 passes, and the blanks, as indicated in figs. 4, 5 and 6, are held down upon the belt 47 and the feed cords by the pressure of the bars 52. These revolving folders are very much quicker in their action than the curved rods usually employed, and in addition take up less space in themachine and have greater efficiency.

By means of the adjusting mechanism heretofore described, the distance between the pairs of revolving folders can be increased or decreased according to the size of the box blanks. After leaving the revolving folders the blank passes beneath a shaft 78 carrying ressure wheels 79 that bear on the folding edges of the blank and press the glued edge down with suiiicient force'to cause it to adhere to the `contiguous one.

The shaft 78 lis preferably operated through a chain belt 80 from the driving shaft 33. After leaving the pressure wheels 79 the blanks pass into s irals 81 and 82 arranged in airs and a apted to feed the blanks vertically into the space between the upright standards or bars 83 and 84 that act as hopper walls to hold the package of blanks 1n place'until they are removed from themachine. The bars 83 are mounted on slotted plates 85 that are adjustable in the slot 63 to permit the bars to be set in different osi'tions according to the size of the box blan s. The spirals 81 and 82 are provided at their lower ends with gears 86 meshing with'similar gears 87^on the shafts 60, and are timed to be driven at the same speed as the revolving folders.

The o eration ofthe machine is as follows: The fee( hopper having been adjusted to the roper size for the box blanks that are to be ed into the machine, the feed mechanism is set in motion and the feed arms 7 engaging the edge of the bottom blank will advance it carried along to the revolvingfolders, its

edges having been lifted by the action' of the initial folders to allow the spirals or webs of the revolving folders to pass beneath them. As the blank advances between the revolving folders its edges will be ressed over upon the middle portion, the fol ing actionbeing continuous and uninterrupted and without any reduction in the s eed of the revolving blank. One edge of the lank having been smeared with glue before it reaches the revolving folders, the pressure of the Wheels on the dise charge side of said folders will cause the edges of the blank to adhere together and com lete the shell or box. From the pressure W eels the blank passes to the spirals and is elevated to the ho` per-like space above.

It will e noted that there are a number of distinct advantages to be derived from ,the use of this machine. All parts are adjustable so that it can be readily folding blanks of different size. t is not necessary to have a machine for making every size of box. It is very compact and occu ies but very little Hoor space, and is pecu iarly ada ted for factories or 'shops where the mac inery is crowded and space valuable. It has -a large capacity, as the blanks only have to travel a comparatively short distance and are not interrupted in their travel by the folding operation.

I claim as my invention:

1. The combination, with avframe, of means for feeding flexible box blanks therein, preliminary folders for raising the edges of the blanks, and revolving folders havmg spirally arranged webs so disposed that the highest part of the spiralin respect to the plane in which the blank is to be folded will first engage the blank and the lower portions of the spiral will be caused to progressively engage the blank to fold it, substantially as described.

2. rIhe combination, with a suitable frame, of means for feeding flexible box blanks7 and vertical folders having s irally arranged webs positioned to enga e t e lower faces of the blanks and progressively fold them over upon the middle portions thereof, substant1ally as described.

3. In a machine for making flexible boxes, a vertical folder having a spirally arranged web positioned thereon to engage the lower face of a blank and progressively fold the side of the blank, for the purpose specified.

4. In a machine for making flexible boxes, folders arranged in pairs and between which the blank passes, said folders being provided with spirally arranged Webs'those on the initial folders being shorter than the webs on the succeeding folders, substantially as described.

5. In a machine for making flexible boxes, the combination, with a frame, of the feed belts or cords therein, folders operating upon ism, the spiral webs of the folders being 1 ada ted for each side of said belts and havin spirally arranged webs, and means for ho ding the middle portion of. the blank down upon said belts, substantially as described.

6. In a machine for making flexible boxes, a feed mechanism, spirally webbed folders provided upon each side of said feed mechanso disposed with respect to the plane in w ich the blank is -to be folded that the highestpart of the spiral in respect to said plane will first engage the blank and the lower portions of the spiral will be caused to ro ressively engage the blank to fold it, and)sa1d folders and said feed mechanism being ad`ustable laterally to accommodate them toblanks of diHerent size, substantially as described.

7. In a machine for making flexible boxes, revolving vertically arranged webbed folders, the spiral'webs of the folders being so disposed with respect to the plane in which the blank is to be folded that the highest part of the spiral in respect to said plane vwill first engage the blank and the lower portions of the spiral willl be caused to progressively engage the blank to fold it, and means for adjusting them toward o r from each other, for the purpose specified.

8. In a machine for making flexible boxes, revolving vertically arranged folders provided With spirally arranged webs so disposed that the highest part of the spiral in respect to the plane in which the blank is to to be folded will first engage the blank and the lower portions of the spiral will be caused to progressively engage the blank Vto fold it, and|said folders being adjustable toward or from each other. s

9. In a machine for making flexible boxes, revolving vertically larranged folders and means for feeding the blanks between them, of upright elevating spirals whereto the blanks are delivered horizontally from said folders, substantially as described.

10. In a machine for making flexible boxes, revolving vertically arranged folders provided with spirally arranged webs so disposed that the highest part of the spiral' in respect to the plane in which'the blank is to be folded will first engage the blank and the lower portions of the spiral will be caused to progressively engage the blank to fold it, means for feeding the blank between said folders, and blanks are dehvered after leaving said folders.

11. In a machine for making flexible ressure wheels whereto the ered horizontally from said folding devices,

and said folding devices and said spirals being adjustable horizontallyto adapt them for blanks of different size.

12. ,In a machine for 'making flexible boxes, verticall arranged spirals Whereto the blanks are cfelivered and elevated out of the machine, and mechanism for delivering the blanks horizontally to said spirals.

13. In a machine for maklng flexible boxes, vertical folders provided with spirally arranged webs, and a feed device operating between them there being two airs of said folders the webs of the initia pair beinO shorter than those of the succeeding pair and the webs of both airs remaining in contact with the sides of tfie blank continuously as it passes between them, substantially as described.

14. In a machine for making flexible boxes, a blank feeding mechanism, folders arranged oneach side of said mechanism and rotatable in the direction of travel of the blank, and means to rotate the folders in the direction of travel of the blank' to fold the same withoutI checking its speed as it asses between them, for the pur ose speci ed.

15. The combination, wit means for feeding a box blank, of folders having a continuous revolving engagement with the blank in the direction of travel of the blank, and means for revolving the folders in the direction of travel of the blank whereby the blank is folded without checking its speed, substantially as described.

16. In a machine for making fiexible boxes, a folder having a rounded end and a spirally arranged web, for the purpose speci- 17. In a machine for making .flexible boxes, a vertically revolving folder having a rounded upper end and a peripheral web.

18. In a .machine for making flexible boxes, a feed device, in combination with vertical revolving folders having peripheral webs so disposed that the highest part of the spiral in respect to the plane in which the blank is to be folded will first engage the blank and the lower portions of the spiral will be caused to pro i ressively engage the blank to fold it.

19. n a machine for making flexible boxes, a feed device, in combination with revolving folders having peripheral webs so dis-A posed that the highest art of the spiral in respect to the lane in w ich the blank is to be folded will rst engage the blank and the lower portions of the spiral will be caused to progressively engage the blank to fold it.

20.' In a machine for making exible boxes, a feed device, revolving folders arranged in pairs upon each side of said feed' delb ank is to vice and provided with peripheral webs, positioned to`bear'against the underside of the box blank for the urpose specified.

21. In a maciiine for making flexible boxes, a feed device, in combination with vertical revolving folders arranged .in pairs and having peripheral Webs, ositioned to bear against the underside of t e box blank for the. urpose specified.

22. n a machine for making flexible boxes, vertical revolving folders provided with peripheral webs so disposed that the highest part of the spiral in respect to the pllane in which the blank is to be folded will rst engage the blank and the lower portions of the s iral will be caused to progressively engage t e blank to fold it.

23. In a machine for making iiexible boxes, revolvin folders having peripheral webs so dispose that the highest part of the s iral inres ect to the lane in which the e folded will first' engage the blank and the lower portions of the s iral will be caused to rogressively en age the blank to fold it, an means for fee ing the blank between said folders.'

24. In a machine for making flexible boxes, a vertical revolving folder having a spiral web so disposed that the highest art o the spiral in res ect to the lane in w ich the blank is to be fblded will rstengage the blank and the lower portions of the s iral will becaused to progressively engage tfie blank to fold it.

25. In a machine for making flexible boxes7 revolving vertically arranged spirals located in pairs,|- and positioned to bear against the underside of the box blank and a feed mechanism operating between said pairs of spirals to deliver the blanks horizontally thereto, substantially as described. l

26. In a machine for making iiexible boxes, revolving s irally webbed folders so disposed that the hlghest part ofthe spiral in res ect to the lane in which the blank is to be olded will rst engage the blank and the lower portions ofthe spiral will be caused to progressivelyL enga e the blank to fold it, means for feeding t e blank, and presser devices located near said folders.

In witness whereof, I have hereunto set my hand this 18th day of- February 1905.

- EDWIN G. STAUDE. Witnesses:

C. G. HANsoN, C. MACNAMARA.

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