US1623223A - Scoring machine - Google Patents

Description

l, D ,2 Aprll 5, 1927. M. E. WIDELL 623 23 sconme MACHINE I s Sheets-Sheet 1 Filed Nov. 12. 1925 IN V E TOR.

W4 5 BY W ATTORNEYS 1,623,223 Apnl 5, 19227. M. E. WIDELL SCORING MACHINE Filed Nov. 12. 1923 3 Sheets-Sheet 2 11v VLNTOR. 74/

B Y M Y 4 A TTORNE Y5 1,62 ,22 April 5, 1927. v M. E WIDELL 3 3 SCORING MACHINE Filed Nov. 1-2, 1923 3 Sheets-Sheet 3 2 ATTORNEYS Patented Apr. 5, 1927.

v UNITED STATES PATENT OFFICE.

MAGNUS E. WIDELL, 0F CINCINNATI, OHIO, ASSIGNOR TO AMERICAN CAN COMPANY,

OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

SCORING MACHINE.

Application filed November My present invention relates to machines for forming score lines in blanks for tearing strip containers and the like and has for a primary object the provision of a scoring machine in which a plurality of scoring operations may be performed upon each blank as it is fed therethrough.

In the art of scoring metal, it has been customary to provide machines adapted to perform only a single scoring operation as, for example, the cutting of well-known parallel score lines in tearing strip containers and if additional scoring is desired, such, for instance, as diagonal or herring bone scores, between the parallel score lines, it has been the practice to feed the blank through another machine adapted to cut the particular form of scoring desired. In this manner, satisfactory scoring can be accomplished provided the later scoring is properlyregistered relative to the first, but this, in practice, has been found very difficult, due to the fact that two machines, each open to its own peculiar mechanical imperfections, are employed.

. My present invention, therefore, is directed to the provision of scoring apparatus in which the difficulty just referred to is eliminated, a plurality of scoring operations being performed in the same machine accurately and without the possibility of misalignment and irregularities, due to possible 7 differences in separate machines.

Among the advantages attendant upon the invention, there may be mentioned the increased speed of production, due to the practically simultaneous scoring operations performed while the blank is passing through a single machine, the reduction in the cost of manufacture due both tothe increased speed of production and to the reduction in the number of machines required, and the accuracy obtained by reason of the fact that the different scoring operations are performed whiletheblank is upon the same base plate to which the scoring rollers are similarly adjusted.

The invention also contemplates the provision, in a scoring machine of this character, of means for flattening the score lines by removing any irregularities caused in the cutting operations, so that the blanlg-When delivered from the machine, not only is ac- 12, 1923. Serial No. 674,129.

signs, ut is smoothed and properly conditioned for subsequent use in the making of,

a container body.

Numerous other objects and advantages of the lnvention will be apparent as it is bettor-understood from the following descrip- 01011, which, taken in connection-with the accompanylng drawings, discloses a preferred embodiment thereof.

Referring to the drawings,

Flgure l is a side elevation of a machine in which my invention is embodied, the upper part thereof being broken away to better illustrate the operating elements;

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

F1g. 3 is a partial vertical section, taken substantially upon the section line 3-3 in Fig. 1;

Fig. f is a partial horizontal section, taken substantially upon the section line lf in Fig. 2 and showing the scoring and flattening rollers in detail; and

F1g. 5 is a plan View of a can body blank, showing the action of the different rollers thereon. I

As thus illustrated, the machine comprises standard 21 adapted to rest upon the floor and supporting a main head 22 in which the operating elements are mounted. A feeding table 23 is secured at the front ofthe head 22 by means of screws 24, said table being provided upon its upper surface with lateral guides 25 and a guide plate 26 positioned therebetween. Said guides serve to hold the blank accurately in a predetermined course of travel as it is fed through the machine.

A plurality of scoring rollers are mounted in tandem relationship above the feeding table 23, said rollers, in the present instance, comprising a parallel line roller 27, a diagonal line roller 28 and a flattening: roller 29. Said rollers are mounted on shafts 31 having bearings in blocks 32 and 33 in the head 22. Said shafts carry spur gear-s34, meshing with similar gears 35 on shafts 36 disposed in parallel relationship to the shafts 31 and having bearings in the blocks '32'and 33 and in a bearing block 37 secured to the face of the head 22 by meansof screws 38. Said shafts 36 carry near their forward ends feeding roller-s 39, which cooperate with the scoring and flattening rollers in manner which will hereinafter appear. The gears 35 mesh with gears 41 upon shafts 42 journaled in the bearing blocks32 and 33 be neath the shafts 36, there being two of said shafts 42 and each of the gears 41 meshing with two-gears 35. Upon the outer end of one of the shafts 42 is a driving pulley 43 adapted to receive power from any suitable outside source for operation of the rollers through the gearing just described.

Referring now in detail to the construction and operation of the rollers, it will be noted that the roller 27 isprovided with cutting edges 4:4: disposed circumferentially thereabout in parallel relationship and adapted to cut parallel. score lines 45 on the blank 46 (see Fig. 5), said lines setting off a tearing strip in the body wall adapted to be'torn away for the purpose ofopening the container. The roller 28 is provided with diagonal cutting edges 47 adapted to cut diagonal score lines 48 in said blank 46, these beingfor the purpose of directing the line of tearbaek to the lines 45, in case it should be deflected therefrom, thus insuring the effective removal of the tearing strip. The roller 29 is fiat and is adapted to remove any irregularities from the score lines after the operation of the scoring rollers just described. The lines 4L9, 51 and 52 (Fig. 5) indicate the central lines of-the rollers 27, 28 and 29, respectively, and it will thus be apparent that all of said rollers act upon the blank at the same time.

The feeding rollers 39 project slightly above the surface of the table 23 and cooperate with rubber rings 53 on the outer ends of the rollers 27 and 28 to feed the blank through the machine. The rollers 27. and 28 are. positioned with their cutting edges above the table 23 at a distance equal to the thickness of the metal which it is desired to leave the bottom of the score cut, in order to insure effective tearing. The roller 29 is positioned above the table a distance equal to the thickness of the metal and serves to flatten the scored area, as well as to assist in feeding the blank through the machine.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts, without departing from the spirit and scope of the invention, or sacrificing all of itsmaterial advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. A machine for scoring blanks for tearing strip containers, comprising different operation scoring rollers arranged in tandem relationship and driven in unison, a certain roller having means for scoring parallel bounding lines of the tearing strip, and another roller in line therewith having means for scoring parallel diagonal lines between said parallel lines, whereby a plurality of score designs are provided in a single machine and with a single sheet/feeding operation.

2. A machine for scoring blanks for tearing strip containers, comprising different operation scoring rollers disposed in tandem relationship and adapted to perform a plurality of scoring operations on the blank, a certain roller having means for scoring parallel bounding lines of the tearing strip, and another roller in line therewith having means for scoring parallel diagonal lines between said parallel lines, and means for rotating said rollers in unison.

3. A machine for scoring blanks for tearing strip containers, comprising different operation scoring rollers disposed in tandem relationship and adapted to perform a plurality of scoring operations on thewblank, a certain roller having means for scoring parallel bounding lines of the tearing strip, and another roller in line therewith having means for scoring parallel diagonal lines between said parallel lines, and means for rotating said rollers in unison, said rollers operating simultaneously upon the same blank.

4. A machine for scoring blanks for tearing strip containers, comprising a feeding table provided with guides for directing a blank in predetermined course of travel, and a plurality of scoring rollersarranged in tandem relationship above said table and adapted to actsimultaneously upon a blank being fed thereacross to impress different score designs thereon, one of said rollers having diagonal cutting edges.

5. A machine for scoring blanks for tearing strip containers, comprising a feeding table provided with guides for directing a blank in predetermined course of travel, and a plurality of scoring rollers disposed above said course of travel and-adapted respectively to cut parallel score lines and diagonal score lines between said parallellines as the sheet is fed therebeneath.

6. A machine for scoring blanks for tearing strip containers, comprising a feeding table, a plurality of feeding rollers protruding above the surface of said table, a plurality of scoring rollers disposed respectively above said feeding rollers, a certain roller having means for scoring parallel bounding lines of the tearing strip, and another roller in line therewith having means for scoring parallel diagonal lines between said parallel lines, and means for rotating said feeding and scoring rollers in unison to perform a plurality of scoring operations as the blank is fed through the machine.

7. A machine for scoring blanks for tearscore lines between said parallel lines as the ing strip containers, comprising a feeding sheet is fed therebeneath, and a flattening table provided with guides for directing a roller disposed beyond said scoring rollers 10 blank in predetermined course of travel, a and adapted to remove any irregularities 5 plurality of scoring rollers disposed above from the score lines.

said course of travel and adapted respectively to cut parallel score lines and diagonal MAGNUS E. WIDELL.

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