US642582A - Creasing-machine. - Google Patents

Description

(No Model.)

Patented Feb. 6, i900. W. W. CHEESEMAN.

GBEASING MACHINE,

Application led Mar. 6, 1899.-)

2 Sheets-Sheet l.

No. 642,582. I Patented Feb. 6, |900.

W. W. CHEESEMAN.

cnEAs'lNG mAcHlNE.

(Application led Mar. 6, 1899.) (No Model.) 2 Sheets-Sheet 2.

' 1 zz 25 22 ZZ 25 z2 l 1 9 W' 24 24 NTTED STATES PATENT OFFICE.

WILLIAM W. CHEESEMAN, OF CINCINNATI, OHIO, ASCSIGNOR TO WILBER R. ELLIOTT AND HOWARD L. MELVIN, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 642,582, dated February 6, 1900.

Application iiled March 6, 1899. Serial No. 707,957. (No model.)

To all whom t may concern:

Be it known that I, WILLIAM W. CHEESE- MAN, a citizen of .the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Creasing-Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art Ato which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specication.

This invention relates to certain improvements in creasing-machines, such as are especially adapted for use in creasing paperbox stock and similar materials; and the object of the invention is to provide a machine of this character of a simple and inexpensive nature which shall be strong and compact in construction and shall be adapted for creasing the stock sufficiently to permit the bending thereof to the proper angle with the minimum weakening of the material at the crease.

The invention consists in certain novel features of the construction, combination, and arrangement of the several parts of the improved creasing-machine whereby. certain important advantages are attained and the device is made simpler, cheaper, and otherwise better adapted for use, all as will be hereinafter fully set forth.

The novel features of the invention will be carefully defined in the claims.

In the accompanying drawings, which serve to illustrate the invention, Figure l is a side elevation of a machine embodying my invention, and Fig. 2 is an enlarged fragmentary sectional view taken vertically through the machine in the plane indicated by line a a in Fig. 3 and showing one set of the creasing mechanisms. Fig. 3 is an enlarged fragmentary face view showing the upper part of the machine with the creasing mechanisms thereat, the central portions of the machine being broken out to save space. Fig. 4 is a view showing the rear face of one of the adjustable carriers for the upper creasing devices, and Fig. 5 is a view showing the rear face of one of the slides whereon said carriers are held. Fig. 6 is a top edge View of the carrier shown in Fig. 4; Fig. 7 is an end edge view of the slide shown in Fig. 5. Fig. 8 is a fragmentary detail view showing one of the cutters employed for trimming the edges of the stock passed through the machine. Fig. 9 is an enlarged detail sectional view showing one of the upper creasing devices.

In the Views, l l indicate the side frames or uprights of the machine-frame, these uprights being tied or braced together at the lower part of the frame by means of transverse tie-rods and being anged to give them the required strength.

2 indicates the feed-table at the front part of the machine for supporting the stock to be fed into the machine, said table being secured at its rear part to lugs projecting forwardly from the frame-uprights l and being supported at its front part by a brace or braces 3, extending down and connectedto the lower part of the frame. The machine is also provided with a delivery-table 4 for receiving the creased stock, said table having at its rear edge an upright stop 5 to straighten the edges of the sheets or blanks and having its forward edges held to slide between spaced flanges 6 6, formed transversely on the inner surfaces of the uprights l and adapted to receive the edge of the table 4 at each side of the frame between them, as shown in Fig. 3. The rear end of the delivery-table 4 is supported by means of links 7 7, one connected to the rear end of the table and the other to thelower part of the frame, the adjacent ends of the links being slotted, as shown at 8, to receive a bolt 9 or equivalent device for holding the ends of the' links in adjusted position. By this construction it will be seen that the delivery-table 4 maybe made to extend more or. less far behind the machine by releasing the bolt 9 and moving the slotted links upon each other, the forward part of the table sliding between the flanges 6 of the frame, after which the bolt is tightened to hold the table in adjusted position. In this way the table 4 may be adjusted to receive against its stop 5 differently-sized blanks.

The uprights 1 of the frame are tied or con- IOO nected together at their upper ends by means of a transverse guide-bar 10, extending across the top of the machine to brace the frame and also serving as a guide whereon the upper creasing devices are adapted for movement transversely of the machine to permit of adjusting said devices for creasing blanks of different widths and sizes. The bar 10 is formed with a hollow 11, extending longitudinally through it, said hollow having a contracted portion or neck 12 opening at the front face of the bar and also extending along the entire length thereof, so as to form in said bar, in connection with the hollow 11, a longitudinal slot of T shape in cross-section.

13 indicates the drivin g-shaft of the machine, journaled on the side pieces 1 of the frame to extend transversely thereof below the feed-table 2 and carrying at one end, as shown in Fig. 3, tight and loose pulleys l-l, by means of which the machine may be operated from a driving-belt. (Not shown.) On the shaft 13, between the frame-uprights, are carried the lower creasing devices in the form of disks or rolls 15, having keys 16 arranged for engagement with a keyway or groove 17, extendinglengthwise of the shaft 13, between the frame-uprights. By this construction it will be seen that the lower creasing devices 15 are held to turn with the driving-shaft 13, while bein g capable of adjustment lengthwise along the same toward or away from each other to permit of creasing blanks for differerently sized or proportioned boxes. The shaft 13 is also provided outside the frame with a pulley, over which extends a driving belt or band 18, which is carried up, as shown in Figs. 1 and 3, over a pulley 19 on a shaft 20,extending transversely across the machineframe above the guide-bar 10, being journaled at its ends in brackets secured to the uprights l, as shown in Fig. 3, and provided with a longitudinal keyway or groove 21, extending along its length between said uprights. 0n the shaft 2U are mounted bevelgears 22, arranged in pairs or sets connected by sleeves 23 and having keys to engage the keyway or groove 21 in the shaft, so that the pairs or sets of gears 22 are held to turn on the shaft, but are capable of adjustment along the same in a manner and fora purpose similar to the before-mentioned lower creasing devices or disks 15 on the driving-shaft 13.

As shown, the gears 22 of each set or pair have their driving-faces oppositely arranged for driving engagement with bevel-gears 24, held on the upper ends of vertical shafts 25, arranged in the same vertical plane with shafts 2O and 13, but extending at right angles thereto on opposite sides of the gears 22, said vertical shafts 25 being held in collars or journals 26, formed at top and bottom of the front face of an adjustable carrier 27, made, as shown in Figs. 4 and 6, in the form of a rectangular metal plate.

the shafts 25 carry the upper creasing devices 28, made in the form of disks or flattened The lower ends of rolls mounted to turn on a vertical axis at opposite sides, respectively, of one of the lower creasing devices or disks 15 of shaft 13.

Each carrier 27, as shown in Fig. 3, carries the two shafts 25, driven from one set or pair of the gears 22, together with the upper creasing devices or disks 28, which operate, as will be hereinafter explained, in connection with one of the lower creasing devices or disks 15, and each of said carriers :is formed on its back face with a vertical rib 29, adapted to fit and slide in a channel 30, formed vertically in the front face of a slide-plate 31. (Shown in detail in Figs. 5 and 7, the channel 30 being indicated in dotted lines in said figures.) The arrangement of these parts is shown in Fig. 2, which is a cross-section through said riband channel. The rear face of the slide-plate 31 is also formed with a rib 32, formed to extend transversely of the machine or at right angles to the rib 29 and channel 30 and adapted to enter the reduced portion or neck l2 of the T-slot in the guidebar 10, so as to hold the slide-plate 31 on said bar and guide it for movement longitudinally along the same.

The carrier 27 is formed with a vertical slot 33 extending through it, as shown in Fig. i, at the central part of the rib 29, and the slideplate 31, as seen in Fig. 5, is formed with a perforation 34 at the center of the rib 32, these openings serving for the passage of a bolt 35, having a head or enlargement 36, mounted in the enlarged portion or hollow 11 of the T-slot of bar 10, the shank of the bolt extending out through the neck 12 of said -slot, as shown in Fig. 2, through the openings 34 and 33 in the slide-plate and carrier, when the ribs of these parts are properly engaged with the channel 30 and said T-slot, and carrying a washer 37 and nut 38 outside of said carrier, as shown in Figs. 2 and 3, so that when the parts are properly adjusted the IIO nut may be tightened to hold them against displacement. The slide plate 31 is also formed at its upper edge with a central lug 39, which projects upward and forwardly over the carrier 27 and is provided with a screw 40, the tip of which engages with the carrier 27 and is adapted for use in adjusting the carrier vertically to raise and lower the upper creasing disks or devices 28, the rib 29 moving when the carrier is adjusted lengthwise in its channel 30. By this construction it will be seen that when the nut 38 is unscrewed the carrier 27 may be adjusted vertically by means of the screw 40, so as to move the upper creasing devices nearer to or farther away from the lower creasing devices 15 to suit stock of different thicknesses, or the slide-plate, together with the carrier and parts carried thereby, may be adj usted transversely or laterally of the machine, the rib 32 of the slide-plate moving along the slot of the guide-bar lO, so as to bring the creasing mechanisms at opposite sides of the machine nearer together or farther apart to accommodate the machine for use in creasing blanks for differently sized or proportioned boxes.

As shown in the drawings, the periphery of each of the lower creasing-disks 15 is .formed with a central rib or swelled part 15a, extending around it and adapted to project up between the corresponding pair of upper creasing-disks 28, which are provided on their under sides with circular central projecting parts 28C, having rounded edges 28a, as shown in Fig. 9, and forming at the lower side of each disk an annular flat face or shoulder 28b to engage the top surface of the stock, being creased at points over the central rib or swelled part 15 of the corresponding lower disk 15. The projecting parts 28c of the disks 28 also engage the upper surface of the stock at points over the periphery of the lower disk 15, so that when the stock is fed tothe creasing devices from the feed-table 2, which is arranged, as shown in Figs. 1 and 2, at a level with the bite of the disks, the lower surface of the stock will be engaged and forcedupward-at the creasing-line by the peripheral rib or swell 15a of the lower disk 15. The rib or swell 15 is formed with a flat or nearly iiat outer face, and at its sides the rounded edges 28CL of the projecting parts 28C of the u pper disks 28 will engage the uppersurface of the stock to form downward bends on each side of said creasing-line, so that a wide crease is formed in the stock.

Owing to the arrangement of the lower creasing-disk 15 with its peripheral rib or swell projecting between the upper disks 28 it will be seen that whenthe'corresponding slide-plate 31 is adjusted transversely of the machine the lower creasing-disk 15 will also be moved transversely of the machine along its shaft 13, on which it is held to turn, but capable of free endwise movement, and by reason of the arrangement of the gears 24 at the upper ends of shafts 25 outside of their intermeshing driving-gears 22 the saidgears 22 will also be caused to be moved along the shaft 2O simultaneously with the adjustment of the slide-plate 'and carrier. In this way the machine is made much more convenient for use, since but a single adjustment is required for each set of creasing mechanism and their driving devices. Y

On one end of the driving-shaft 13 is carried a pulley, over which passes a belt or band 41, extending up over a pulley on a shaft 42, journaled transversely across the frame at the rear of the creasing mechanisms and geared, by means of gears 43 or otherwise, to a similar transverse shaft 44, arranged above it and in the same vertical plane. On the lower shaft 42 are mounted rolls 45, having keys engaging keyways or grooves extending lengthwise in the shaft 42, so as to hold said rolls to turn with the shaft, while permitting them to be adjusted lengthwise therealong, set-collars 47 or equivalent devices being provided for holding the rolls against movement endwise on the shaft when in adjusted position. Circular or disk-like cutters 48 are held on the upper shaft 44 alined with the centers of the rolls 45, which rolls are provided with centrally arranged peripheral grooves 46, as shown in Figs. 3 and 8, to receive the cutting edges. On opposite sides of the cutters 48 are mounted rolls 49, which, together with the cutters, have keys to engage a keyway or groove extending lengthwise in the shaft 44, so that the cutters 48 and rolls 49 are held to turn with said shaft, while being capable of adjustment along the same. Set-collars 50 are also provided onopposite sides of the respective pairs of rolls 49 to permit of securing said cutters and rolls against movement along the shaft when in adjusted position. The rolls 49 are adapted to press upon the stock passing between them and the lower rolls 45, so as to securely hold said stock against lateral movement while being operated upon by the cutters 48. By this means it will be seen that the cutters operate to trim the edges of the stock after the creasing devices have operated, so that at a single passage through the machine the stock is creased and trimmed along two of its edges. To crease and trim the other edges 0f the stock, the operation will be repeated.

In order to prevent the edges of the blanks from bending or curling up in front of the creasing devices when gripped thereby, I prefer to provide guards 51, formed of bent metal strips slotted for the passage of the bolts 35 and held adj ustably thereon by the nuts 38. The strips are bent at their lower ends 52 to extend out in front of the disks 28 in position to engage the upper surfaces of the blanks fed to the creasing mechanisms.

In operation the blanks are fed from the feed-table 2 between the upper and lower creasing devices, the movement of all said devices imparted by the positive driving mechanism thereof acting to draw the stock through the machine. Said devices being arranged in sets each comprising one lower and two upper creasing-disks and these sets being capable of ready adjustment toward and from each other, it is evident the machine is made especially well adapted for use. After having been properly creased the blanks are operated upon by the cutters, which serve to trim them down to the desired size, and after passing through the machine the creased and trimmed blanks fall upon the deliverytable 4 and by engagement with the stop 5 thereof are straightened, so as to form a uniform pile on said table.

From the above description it will be seen that the improved creasing-machine is of an extremely simple and compact construction and is especially well adapted for use, owing to its ready adj ustability to accommodate different sizes and forms of boxes and different grades of material, and it will also be apparent from the above description that the device is capable of some modification without material departure from the principles and IOO IIO

spirit of the invention, and for this reason I do not wish to be understood as limiting myself to the precise form and arrangement of the several parts herein set forth.

I-Iaving thus described my invention, I claim- 1. In a creasing-machine, the combination of a frame, a creasing device formed with cylindrical end portions and a central projecting peripheral rib between said cylindrical end portions adapted for engagement with one face of the stock, means for driving said creasing device to draw the stock through the machine, and two creasing devices arranged for engagement with the other face of the stock at opposite sides of the peripheral rib of the first-mentioned device and adapted to bend the stock over the opposite sides of said rib, substantially as set forth.

2. In a creasing-machine, the combination of a frame, a rotative cylindrical creasing device having a rib to engage one face of the stock7 two disk-like creasing devices mounted to turn on axes at right angles to the rotative axis of the first-mentioned creasing device and having their peripheries spaced apart and arranged to bear on the other face of the stock to bend said stock over the opposite sides of the rib of the first-mentioned device, and means for driving all of said creasing devices to draw the stock through the machine, substantially as set forth.

3. In a creasing-machine, the combination of a frame, two sets of creasing mechanisms adapted for movement toward or away from cach other, each set comprising two connected devices to bear on one face of the stock and a single device to bear on the other face of the stock, said single device having a rib extending between the iirst-nientioned two devices whereby the devices of each set are caused to move together when the set is adjusted, and means to move the stock through the machine, substantially as set forth.

4. In a creasing-machine, the combination of a frame, a guide bar extending transversely thereof, a shaft also extending transversely of the frame, cylindrical creasing devices adj ustable along the shaft and each formed with a peripheral rib, slides adjustable along the guide-bar, two creasing devices carried by each of the slides and arranged to engage on opposite sides of the rib of one of said cylindrical creasing devices on the shaft, and means for driving said last-named creasing devices, substantially as set forth.

5. In a creasing-machine, the combination of a frame, a guide-bar ext-ending across the same, a shaft also extending across the frame parallel with the guide-bar, creasing-disks adjustable along the shaft, slides adjustable lengthwise on the guide-bar, carriers adjustable on the slides at right angles to the length of the guide-bar, toward and away from the shaft and two rotative creasing devices carried by each of the carriers, substantially as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

WVM. W. CHEESEBIIAN.

Vitn esses:

JOHN Ennis JONES, XV. R. ELLIOTT.

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