US1143672A - Scoring and cutting machine. - Google Patents

Description

J. W. WEISS & T. G. DEWLING. SCORING AND CUTTING MACHINE.

APPLICATION FILED lULY-9| I914.

Iwwntors J. W WEISS & T. G. DEWLING. scoame AND cumwe MACHINE.

I APPLICATION FILED JULY 9 1914- 1,1%3 Patented June 22, 1915.

3 SHEETS-SHEET 2- III 3 SHEETS-SHEET 3.

Patented June 22, 1915.

WEISS & T. G. DEWLING. scommc AND CUTTING MACHINE.

APPLICATION FILED JULY 9. 1914- I Wtmtflf EEWLINGLDF BMHIMURE w: it;

- To all whom, it may co cern.-

Be it known that we, Joseph Wares and T'HoiuAs G. Dn'wtme, citizens of the United fiate's of America, residin at city of Baltimore, State of Mar land, ave invented certain new and usefu Improvements in Scoring and 'Cutting Machines, of which which this box is manufactured, though certain of the features of the machine are capable of a broader use within the scope of our invention.

The box illustrated in the patent is reinforced by means of plaits or folds extending along the corners, and While all the corners of the box may be thus reinforced, in the preferred form of the invention, the plaits extend along the top and bottom corners or horizontal edges only, and the machine of the present invention is designed with a particular view to its use in the manufacture of such a box.

The principal diflicultyi heretofore encountered in the manufacture of boxes in accordance with the machine of the patent, relates to the bending or scoring of the plaited portions of the paper at the corners. Where the paper is thus thickened by plaiting, the outside fiber-s give way and the pl'ai'ts break at the corners. By the use of this machine, the corners are scored and the top and bottom flaps are cut at a single operation, and particularly, the plaited portions are so manipulated in scoring that the strain is removed from the outside fibers and the corners are formed without breaking or even weakening the material to any considerable extent. v

Although the device and the features thereof may be otherwise arrangedwithin the scope of the invention, in the form illustrated, the machine consists of a vertically reciprocating carriage and a stationary table, the upper or moving member is provided with two knives for cutting the top speeimaim tr Letters intent. Patented was an, faith.- application med tluly 9, 1914. Serial No. Meant. I

struction of which is an important feature the scoring of the plaited reinforce,

of this invention,

and a corner scoring devlce which. may

be of any preferred construction or may even be made like the plaitscorer without departure from the spirlt of the invention. These elements are placed'in a tine preferably at right angles tothe-direction of presentation of the material, 2'. e., transversely of the machine, the cutters being at the outside, the lait scorers or dies next and the corner scorer for scoring the material between the plaits, in the center. This latter is not an important feature and may be Widely varied or omitted Within the scope of our invention. 0n the table are cooperatin members correspondingly placed. hese one at each side and suitable internal formers for the corners.

The knives are of a peculiar construction. They cut the material to form the flaps in the same operation the corners are formed.

.t this time the paper is bent upward toward the knives and the tendency is to crush and jam the edges against the knife after cutting, and break the paper away at the corners. To avoid this, the knives are constructed with a particular view to overcoming these difficulties, as hereinafter described.

As we have already pointed out, the plait scorer or die which is the term which we have applied to the device for forming the corners at the plaited portions, is an important feature of our invention, and while the general principles upon which it is constructed, are not broadly new, it Mil in certain important the prior art and it is by virtue of these features that the operation referred to, z, e.,

1s accomplished Without breaking the material, for various attempts have been made to apply the devices of the prior art to this end and none of these attempts have been successful, while the present structure is an unqualified success.

The prior structure referred to consists of a' die having a central block mounted to move "ertically and two fingers or pushers pivoted at the side, swinging inward and resting on this block. These are rounded points from the device of downward, they swing to a horizontal osition tending to force the'top layers 0 the material inward toward the bend and take the strain off the outside fibers. :The central block-engages the material and yields upwardly as the arms swing. However, this device, while seemingly I right as to the.

theory, has not proved a success in it s operation upon the plaited material,'wh1ch is used in manufacturing the patented box referred to, as the breaking of the outside fibers is not prevented.

As a substitute for the old structure and to overco e the difficulties named, we have constructe ';a die havin the gathering fingers described, but we e lminate the central yielding block and permit the paper instead to bear against the solid portion of the die block or frame. At each side of the center, we place sliding members referred to herein as knuckles. These are mounted to slide vertically and are provided with springs which tend to hold them in the bottom position. They are spaced apart by a" distance equal to the width of the corner to be formed, the inner surfaces of the knuckles being preferably inclined at ,an angle shown as substantially degrees to the horizontal. The ends of the gathering fingers on these knuckles yieldas the die is pressed down on the material over the corner former, against which it is later pressed by the rigid central portion of the die block, and the fingers in swinging upward gather the material and force it in toward the corner relieving the tension at this point so that breakage is always prevented and the corner is formed in the plaited reinforce without materially weakening the folded or plaited paper.

In the accompanying drawings, we have illustrated a machine embodying our'invention in its preferred form.

In these drawings, Figure 1 is a front elevation, Fig. 2 is a rear elevation, Fig. 3 is atop plan divided on a central longitudinal plane, the top of the left half of the machine above the line 3, 3 of Fig. 1 being removed to show the table, etc., Fig. 4 is a side elevation of the entire machine on a reduced scale, Fig. 5 is a side elevation of the plait die, Fig. 6 is a front or rear elevation of the same, Fig. 7 is a section on the line 7, 7 of Fig. 3, Fig. 8 is a view showing the each of which is used to indicate the same or similar parts in the different. figures, the

machine, which may be broadly termed a press, consists of a frame 1 having a table 2 which, when the machine is set up, is extended to the front and rear as shown in Fig. 4.. The press is provided with a reciprocating carriage 3 mounted on vertical guides 4. These are engaged by followers 5 on the carriage, the latter being held normally in raised position by means of springs 6 shown in the form of spiral springs encircling the rods 4.

The machine is provided with a horizontal shaft 7 extending transversely and driven by any suitable means as the belt 8. On this shaft, in the form of the device illustrated, are eccentrics 9, one near each end of the shaft, the same being engaged bysuitable straps 10 on the connecting rods 11 and being pivotally connected to the carriage at 12 whereby the latter is given a reclprocating motion in a vertical path at each rotation of the shaft.

The operative parts of the machine, 2'. e., the elements which act upon the plaited paper, are mounted part of them on the carriage, disposed downwardly, and the 006perating members on the table, all being arranged in a line transverse to the machine, 5. 6., parallel to the shaft. At the left and right sides, secured to the carriage, are knives 13 for cutting the top and bottom flaps. These preferably have the saw-tooth inclined edge illustrated, with a depending guiding shank 14 at the outer side which extends down through the slot 15 in the table provided for the reception of the knife. The knives cut the material while the corners are being formed and the material is bent or gathered for the purpose of forming the corners. To avoid breaking the edges which are thus forced against the knives as they descend, the knives are given a peculiar formation. They are apertured horizontally at 13, adjacent the dies, the slot or aperture extending a considerable portion of the length'of the knife, as shown, where the tendency to crush the paper is greatest. Further, the knives or cutters are widened at the cutting edge 13 so as to remove a comparatively wide strip of material, and reduced above to relieve the edges from pressure after the paper is cut. At the inner end of each knife 13 is a die 16 for treating the plaited portions of the blank and forming' the corners therein. These cooperate with corresponding internal former members 17 on the table. In the center, between the two dies 16 is a corner scoring device 18 of the usual or any preferred form for treatin the corners of the paper between the plaits. This coeperates with an internal corner former 19 on the table.

In the form of the machine shown, the carriage consists of a central beam or lay 20 beveled to engage a corresponding groove 21 in the various tool supports, the beam exthe tools which tending from side to side of the machine and being reinforced by webs 22 in any suitable form, and carrying the necessary follower members ,5 to e gage the upright rods or ways 4. Each of the hives 13- is mounted in or on a btock 23 having the described r oove 21 to receive the beam 20 so that the fe is adjustable transversely of the maadjusted position in any suitable manner as by means of thumb screws 24.

Tn the form of the device shown, the block 23 is provided with an elongated vertical shoulder 25 on its under side, to which the knife is bolted in a convenient manner as shown in Fig. 7. Of the dies 16, one is, as

we have stated, mounted at the inner end of each of the cutters l3, and in the present instance, to this end, each of the die blocks is notched as at 26 in Fig. 5 to en a e or'interlock with the correspondin f block 23. However, the die may e otherwise mounted and provided with a separate supporting block to engage the ways 20 within the scope of our invention, the structure shown being particularly convenient because the dies 16 are in this instance intended to operate on the plaits which are at the top the formation of the flaps extend'downward to the plaits so that the cuts terminate where the scores formed by the dies '16 begin, and

erations are necessarily placed in juxtaposition and if adjustment is to take place, both members are most conveniently adjusted together toward and from the center of the machine for the formation of boxes of correspondingly varying height, the feed or feed gages being varied in position to determine the width of the box, a. e., the distance between the scores and cuts, in a direction at right angles to the line upon which they are formed. The corner scorer 18 be tween the dies 16, is supported upon a suitable block 30, adjustable along the lay or beam 20 of the carriage, and may be widely varied or even dispensed with within the scope of the invention. To make different sized boxes, scorers of different lengths are of course used. a I

The table 2, as shown, is formed in two sections supported upon a beam or way 31 formed on the frame of the machine, the table sections being correspondingly grooved to engage the ways. These table sections are held in adjusted position by means of bolts 32- and are slotted to admit the knife and grooved at 34 to receive the edge lates 35 with the slot 15, and the formers 1 and 19, the latter being so placed that they bridge the space between the table sections.

Referring particularly to the dies 16 for scoring the plaited edges of the boxes, in the form of the invention shown, these conchine and may beclamped with the blockin "which are engaged of the box and the cuts for perform these respective op-' 36 are gathering fingers t2. These are rounded and roughened at 43 at their lower provided with stops 44' and inner ends and by abutments 44, toprevent the arms from swinging downward to vertical position. The arms, near the end portions thereof, rest on the bottom faces of the knuckles 38.

In Figs. 5 and Sin connection, with the die 16, we have shown a section of the 00-- operating internal former 17. This consists of an upright rib 50 of a width slightlyfless than the distance between the knuckles 38', the rib 50 having its longitudinal corners provided with supplemental ribs 51. In Fig. 8, the former and die are shown in connection with a piece of plaited paper 53, the position of the parts and the material being that which they take at the end of the stroke. It will be noted that the ends 43 of the fingers engage the paper some distance from the former, and as the die descends, till the block presses the paper against the former, the fingers, swinging upward and inward, gather the paper and draw it inward toward the bend so that the scoring of the thickened material is accomplished without putting undue tension on the outside fibers and thusbreaking the material from the outer face of the bend.

The operation will be apparent from the preamble and description taken in connection with the drawings. The paper is presented tothe machine in the form of plaited strips of'the length required to ma e a single box, the plaits being preferably longitudinal, spaced apart by a distance equal to the height of the box and spaced from the lateral edges of the length of the flaps, i. e., the width of the box. To position the lateral edge, there is a stop 55, which is adjustable transversely by means of a slot and bolt 56, see Fig. 3. A table 57 extending to the front and rear of the press, as shown in Fig. 4:, is preferably provided. This table has stops 58 spaced forward in thecdirection of the operator, the distances between the stops being equal to the length of the box sides, 5. 6., the distance by which the cuts and scores are spaced. The manner of operation is apparent. One lateral edge of the sheet of paper is placed against the stop 55 and the rear edge is placed against the most remote of the stops 58 and after each cut the paper is advanced and the rear is abutted against the next succeeding stop in the dicorrespondrection of the cutters, until the entire expanse of material has been 'cut and scored.

" The cutters, descending upon the material placed over the slots 15, make a clean cut separating the flaps in the manner desired. The knives cut the flaps as the corners are formed. At this time, the paper is bent upward toward the knives and the natural tendency is to crush and break the cut edges against the knife as they are forced downward with something resembling a toggle action, and there is also a tendency to tear backward from the cut at the corner of the box. To avoid this, the edge of the knife is thickened so that it removes a considerable strip of paper and the shank of the knife toward the. dies, where the breaking tend ency is greatest, is removed'leaving the opening 13'; also the remainder of the knife above the cutting edge 13" is made thm to free the material after cutting.

The operation of the devlce for scoring or bending the plaits has already been described. Between the dies 16 is the element 18 with the cooperating member 19, though, as we have stated, this may be omitted within the scope of the invention. Its function 1s to bend the body of the material between the plaits and thus form the cornersbetween the top and bottom of the box. Any well-known type of scorer may be used or the paper may be bent in any preferred manner.

We have thus described specifically and in detail our preferred form of die for use in forming corners in thick or plaited material and we have also described a machine of which this die is an element and in connection with which it is used in scoring plaited blanks for, the formation of boxes. The description is specific to a degree to the end that the invention may be understood and operated by those skilled in the art. However, the specific terms herein are used in their descriptive rather than in their limit ing sense-and the scope of the invention is defined in the claims.

We claim J 1. Ina machine for making box blanks, two corner forming plait dies arranged in alinement in the direction of the length of the corner being formed and having their outer edges spaced apart by a distance equal to the height of the box to be formed, the inner edges being spaced by a corresponding distance, which is the distance first named diminished by twice the width of the plait, corresponding internal corner formers and means for moving the dies simultaneously toward and from the formers.

2. A machine for forming box blanks consisting of a table, a reciprocating carrier, a pair of flap cutters, a pair of plait dies and a corner scorer with the corresponding internal formers for the dies and scorer, the

various operative members, '5. e., the cutters,

pending from and secured to the carrier,

two corner forming plait dies mounted on the carrier in alinement with the knives, so that the knives and dies form a single line in the direction of the cuts and corners formed, one adjacent the inner end of each knife and spaced well apart, and members cooperating with the knives and with the dies, the same being mounted on the table in the path of the corresponding members.

4. In a machine for making box blanks, a table, a carrier mounted to reciprocate at right angles to the surface of the table toward'and from the table, flap cutting knives arranged in a vertical plane, one at each s de depending from and secured to the carrler, two corner forming plait dies mounted on the'carrier with their operative surfaces in alinement with the knives, one adjacent the inner end of each knife, and members cooperating with the knives and with the dies, the same being mounted on the table in the path of the correspondin members, the outer edges of the dies being spaced apart by a distance equal to the height of the boxes to be made and the inner edges being spaced apart by a corresponding distance. i

5. In a machine for making box blanks from plaited paper strips, a table, a carrier mounted to reciprocate at right angles to the surface of the table toward and from the table, flap cutting knivesarranged in a vertical plane transversely of the table, one at each side depending from and secured to the .carrier, two corner forming dies mounted on the carrier with their 0 erative surfaces in alinement with the knives, one adjacent the inner end of each knife, and members cooperating with the knives and with the dies, the same beingmounted on the table in the path of the corresponding members, the dies being of a width corresponding to that of the plaits and spaced apart by a distance equal to the distance by which the plaits are spaced.

6. In a machine for making box blanks from plaited paper strips, a table, a carrier mounted to reciprocate at right angles to the surface of the table toward and from the table, flap cutting knives arranged in a vertical plane transversely of the table, one at each side depending from and secured to the carrier, two corner forming dies mountward and sliding knuckles,

riaaeva ed on the carrier with their operative surfaces inalinement with the knives, one adjacent the inner end of each knife, members coiiperating with the knives and with the dies, the same being mounted on the table in the path of the corresponding members, the dies being of a Width corresponding to that of the plaits and spaced apart by a distance equal to the distance by which. the plaits are spaced, and a corner scorer between the dies.

7. In a machine for making box blanks, a corner die consisting ofa support gathering fingers thereon pivoted at the sides to swing inward and upward and spring-pressed sliding means upon which the fingers rest, and an abutment between the fingers rigid with the support.

In a machine for making box blanks, a corner die having gathering fingers pivoted at the sides to swing inward and upone foreach finger, upon which the fingers rest, and resilient means tending to advance the knuckles, the knuckles being spaced apart by a distance equal to the width of the corner to be formed.

9. Means for forming box corners of thick or plaited paper consisting of a die block and an internal former, the die having gathering fingers pivoted at each side to swing upward and inward, knuckles mounted to slide and provided with springs tending to advance them in the plane of oscillation of the fingers, the knuckles being spaced apart by a distance equal to the width of the corner to be formed, the ends of the fingers resting on the knuckles, and the internal former being of a width slightly less than the distance between the knuckles, the same being placed in the path of the center of the die block between the knuckles.

10. Means for forming box corners of thick or plaited paper consisting of a die block and an internal former, the die having gathering fingers pivoted at each side to swing upward and inward, knuckles mounted to slide and provided with springs tending to advance them in the plane of oscillation of the fingers, the knuckles being spaced apart by a distance equal to the width of the corner to be formed, the ends of the fingers resting on the knuckles, and the internal former being of a width slightly less than the distance between the knuckles, the same being placed in the path of the center of the die block between the knuckles, the center portion of the die block which cooperates with the former being rigid and integral with the block.

11. Means for forming box corners of thick or plaited paper consisting of a die and an internal former, the die having gathering fingers pivoted at each side to swing upward and inward, knuckles mountdie adapted ed. to slide and provided with springs tending to. advance them in the plane of oscillation of the fingers, theknuckles being spaced ing of a width slightly less than the distance betweentheknuckles, the same being placed in the path of the center of the die, the former having ribs on the two opposite edges parallel tofthe inner surfaces of the knuckles and the corresponding edges of the gathering fingers.

12. In a machine forcutting and scoring box blanks, in combination with a corner to gather the material andform an upright having a wide cutting edge, a reduced shank and an aperture in die being so placed as to cut the ridged portipin of the material longitudinally of the r1 ge.

13. In a machine for cutting and scoring plaited paper in the formation of boxes, a corner die adapted to gather the material and form an upright projecting ridge and a knife, placed in alinement, the knife having a Wide cutting edge and a reduced shank being so placed as to cut the ridged portion of the material longitudinally of the ridge.

14. In a machine for cutting and scoring plaited paper in the formation of boxes, a corner die and a knife placed in alinement, the die being adapted to gather the material and form an upright ridge, the knife having a wide cutting edge and a reduced shank, the shank being apertured adjacent the die and for a considerable portion of its length, the knife being so placed as to cut the ridged portion of the material longitudinally of the ridge.

15, In a machine for making box blanks of plait-ed material, two corner forming plait dies having their operative edges arranged in alinement to form corner scores in the-same line and having their outer edges spaced apart by a distance equal to the height of thebox to be formed, the inner edges being spaced apart by a distance equal to the distance between the plaits, corresponding internal corner formers and means for moving the dies toward and from the corners.

16. In a machine for making box blanks, a corner die consisting of a support having gathering fingers pivoted to swing inward and upward, spring-pressed sliding means upon which the fingers rest, and a rigid abutment between the gers.

17. In a machine for making box blanks, a corner die consisting of a support having and upward, spring-pressed sliding means projecting ridge, a knife the shank adjacent the upon which the fin ers rest, a rigid abut- SLifned by us at city of Baltimore, State ment between the gers, and an internal of aryland, this 2nd day of Julgwlei.

- former, the same being placed in the path JOSEPH W. WEI

of the rigid abutment between the fingers THOMAS Gr. DEWLING. 5 so that when the die is advanced, the rigid; Witnesses:

portion engages the material where it rests EDWARD L- BASH,

on the former. EDWIN F. SAMUELS.

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