US1038232A - Scoring-machine. - Google Patents

Description

E. H. TAYLOR.

SCORING MACHINE.

APPLIGATION FILED Nov. 24. 1908.

1,038,232. A Patented sept. 10,1912.

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. SCORING MACHINE. APPLIoATIoN FILED Nov. 24, 1908.

1,038,232, Patented sept. 10,1912.

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APPLICATION FILED NOV. 24, 1908.

W/U/w/dj" QM 92M/ UNTTED sTATEs PATENT oEEIcE.-

EUGENE H. TAYLOR, OF HYDE PARK, MASSACHUSTTS.

SCORING-MACHINE.

and useful Improvement inl Scoring-Maf chines, of which the following 1s a speciication, reference being had therein to t-he ac- L com an inor drawings.

My invention has for its object to produce a machine for scoring blanks to be used in the manufacture of paper boxes and vthe like which shall perform the operation of scoring at a rat-e more rapid than has heretofore been possible on machines of this character.

In the machine embodying my invention, the blank of cardboard to be operated upon is fed into the machine from a feed table. It passes first through mechanism adapted to place upon it a series of scored lines which are parallel with each other and to trim the sides of the blank along lines parallel with the scored lines. `This mechanism may for convenience be termed the primary scoring mechanism. After having passed the primary scoring mechanism, the blank falls upon a table where it is seized by automatic feeding mechanism and carried through a second set of scoring instrumentalities which score upon the blank a series of lines at right angles with the lines scored upon the blank by the primary operation and trim the sides of the blank which are parallel to the lines scored by the secondary operation.

IIeretofore so far as is known to me machines of this kind have been constructed to run at a constant speed regardless of the size of the blank to be operated upon. To one skilled in this art it will readily be apparent that a machine which runs at the speed necessary to operate upon the largest blank which it is to score will lose a large amount of time when the machine is lrun on blanks which are smaller in size than the largest blanks on which it is adapted to operate. The machine embodying my present invent-ion is adapted to overcome this difficulty, means being provided for regulating the speed of the feeder for the secondary mechanism with relation to the speed of the primary scoring mechanism so that a minimum amount of time is lost when the machine is operating upon blanks of the smaller sizes. In other words, in ma- Specication of Letters Patent.

Application filed November 24, 1908.

Patented Sept. 10, 1912. Serial No. 464,330.

chines as heretofore constructed, the feeder of the secondary scoring mechanism made a given number of strokes for any given number ofl revolutions or fractions thereof of the primary scoring mechanism; butin my improved machine the number of strokes made for any given number of revolutions or fractions thereof of the primary scoring mechanism maybe regulated by the operator in accordance with the size of the blank to be: operated upon.

The machine embodying my invent-ion is also so constructed that the primary mecha-- nism delivers the blank which it has scored on top of the feeder of the secondary scoring mechanism while the secondary scoring mechanism is yet operating upon the preceding blank. In this manner the loss of time which would otherwise occur where the primary mechanism is required to wait for the secondary mechanism is eliminated.

The machine also contains novel means for assisting the operator to feed the card board to the primary mechanism at the rightI moment of time.

The invention will be understood from the following description taken in connection with the accompanying drawings, and the novel features are pointed out and clearly defined in theclaims at the close of t-he specification.

In the drawings,-I*`igure 1 is a front elevation of a machine embodying my invention, a portion of the feed table being removed. Fig. 2 is a top plan view. Fig. 8 is an elevation somewhat enlarged of the left hand side of the machine seen in Fig. 2; Figs. 4 and 5 are details of the clutch for disengaging the indicator and stop fingers. Fig. 6 shows a modification of the change speed gear.

Referring to the drawings, and more par ticularly to Figs. 2 and 3, the feed table is shown at 11. The blank to be scored is placed upon this table with its left hand edge against the guide 12 which is set in the proper position by means of screw 13. The said blank is pushed forward by the operator until it engages the stop lingers 14. two of `which are shown in Fig. 2 in full lines and two more of which are shown in dotted lines. At the proper moment in the cycle of operation of the machine,the stop fingers 14 are depressed by mechanism which will be later described, and the operator is .the machine and are adjustable thereon by means not shown, the same being well known in the art. The primary feed roll 15 rotates constantly, being driven by the pulley 17 which is clutched to the main shaft 13 by any convenient form of clutch underi the control of the operator. In the drawings, a clutch of well known form is shown at 19 controlled by the lever 20. W' hen the machine is in operation, the primary feedy roll rotates at a constant speed. A presserfoot 21 of suitable spring material serves to depress the end of the blank so that it will be presented to the cutters or scorers 16 in After passing under the; cutters or scorers 16, the blank is seizedV proper position.

by a pair of feed rolls 22 and 23 mounted in the frame of the machine and driven by the gears 24, 25 and 26. Said gears 24, 25 and 26 are so proportioned that the peripheral speed of the feed rolls 22 and 23 is the same aslthe peripheral speed of the primary bed ro l.

Between the primary feed roll 15 and the feed rolls 22 and 23 are placed two sets of guide fingers. The upper guide fingers are shown at 27, 27, 23, 28, 28, and the lower ngers at 29, 29, 30, 30, 30. The upper ends of guide fingers 29, 29, of the lower set are raised somewhat so that the waste which is cut off from the blank by the action of the two outside cutters 16, 16, is depressed and fed down through the machine while the Lbody of the blank is guided by the other guide fingers to the bite of the feed rolls 22 and 23. After passing through the primary feeding mechanism and the auX- iliary feed rolls 22 and 23, the blank which has now received one set of scored lines is deposited on the table 31 with its front edge in contact with the adjustable stop 32 in position to be fed to the secondary scoring mechanism. As the momentum of the blank when it is thrown out from the primary scoring mechanism is considerable and is likely to cause the blank to rebound when it vstrikes the rigid stop 32, thus leaving the blank in a position which is not the proper one, one or more brushes or retarders 33 are provided under which the blank is pushed, and the fibers 34 ofwhich press upon the upper surface of the blank, thereby retarding its motion and causing it to come to rest with itsfront edge exactly in contact with the adjustable stop 32. The blank arrives in this position ready lto be fed to the secondary scoring mechanism before the secondary scoring mechanism has completed the operation of scoring the preceding blank, o-r in other words the blank is in position to be fed but lies on top of the feeder while the feeder is still moving back after feeding the preceding blank. Then the feeder is at about the end of its rearward movement, it passes out from under the edge of the blank which then drops down into position to be engaged by the feeder at its next forward movement. The feeder 35 then advances and moves the blank along a path at right angles to its lirstpath of movement, presenting the side edge to the secondary scoring mechanism.

The seconda-ry scoring mechanism is similar in co-nstruction and mode of operation to the primary scoring mechanism, consisting of a feed roll 36 and cutters and scorers 37, one of which only is shown in Fig. As soon as the edge of the blank is caught between the feed roll 36 and the scoring wheels 37, it is drawn forward by them, its untrimmed edges being trimmed and lines corresponding to the number of scorers scored upon the surface of the blank. The blank is then thrown out of the machine by the secondary scoring mechanism.

The secondary feed roll 36 is driven from the primary feed roll by means of a pair of bevel gears 38 and 39. As the two rolls are identical in size, it will be seen that they have the same peripheral speed. The secondary feeding mechanism comprises the feeder 35 which is of a length sufiicient to square up the blank by means of the straight edge which was trimmed off by the outside cutter 16 of the primary scoring mechanism. rl`he feeder 35 is carried on a slide 40, and it is operated from the cam 42 by means of the connecting rod 41, the cam lever 43 and the cam follower 44. The cam 42 is mounted on the cam shaft 45 which is driven from the secondary feed roll 36 at speeds which may be varied by means of a set of change gears 46. In the form of gearing shown in Fig. 3 three gears 47 of different sizes are provided on the shaft 4S of the secondary bed roll 36, two intermediates 49 and 50 on a stud 51 being arranged to mesh with the gear 52 on the cam shaft 45, the various gears being interchangeable to produce the variations in speed required.

In Fig. 6, there is shown means of a modified `form for producing the variation in speed between the secondary feed roll 36 and the cam shaft 45 which is desired. In this case the feed shaft v48 is provided with a friction disk 53 against the face of which presses the edge of the idler 54. A second friction disk 55 is mounted on the cam shaft 45 and is also engaged by the idler 54. Said idler 54 is mounted slidably upon its shaft 56 and the speed of the cam shaft 45 is determined by the location of the idler 54 on its shaft 56.

It will be seen from the previous description that the length of time required by the feeder for a stroke measured in revolutionsk or fractions of a revolution of the secondary feed roll may be varied by means of the change speed gearing, thus making it possible to cause the feeder to make a stroke more frequently where the blank to be operated upon is of small area, thus eliminating all loss of time between the primary and secondary scoring mechanisms.

In order that the operator may be enabled to feed the machine more conveniently, I provide the stop fingers 14 on the shaft 61. Said stop fingers 14 are bent upwardly at their upper ends and project above the level of the table 11 so that when in their normal position, the blank which is being fed to the machine comes in contact with the said feed mechanism and can not be fed to the primary scoring mechanism until the feed iingers are droppedout of the path of the blank. By timing this mechanism properly with relation to the movements of the feeder 35, the operator is prevented from feeding a blank to the machine except at the proper time, and from feeding the machine too fast.

The fingers 14 are depressed in the following manner. A cam 62 mounted on the shaft 45 contacts with the cam follower 63 carried on the lower end of the bell crank lever 64 and normally held in contact with the cam 62 by' means of the spring 65. The other arm of the bell crank lever 64 is connected to the link 66 which is in turn connected to the arm 67 of the shaft 61. It will be seen that the cam 62 causes the fingers 14 to be depressed out of the path of the blank once for each stroke of the feeder and at a definite time with relation to the stroke of the said feeder 35, said time being determined by the position of the cam 66 on the shaft 45. At 68 is shown an indicator on the shaft 61 and at the side of the machine by means of which the operator may know the position of the feed fingers 14 which are obscured from his sight by the blank. Said indicator 68 being mounted on the shaft 61 rises and falls with the feed ngers 14.

As an expert operator may be able to feed the machine quite as successfully without the use of the stop fingers 14, I make provision by which they may be disconnected from their operating mechanism and dropped down out of the path of the blank. This device is plainly shown in Fig. 4. As will be seen from an inspection of that gure, the indicator 68 and the arm 67 connected to the operating mechanism are attached to a collar 70 which is loose on the shaft 61 on which t-he stop fingers 14 are fast. On the end of the., shaft 61 is located a sliding collar 72 having a tongue 90 acrossits face which engages a corresponding groove in the face of the collar 70. The end of the shaft 61 is split to receive a latch 75 pivotcd at 76 and provided with a projection 77 (see also Fig. 5) which engages the outer surface of the sliding collar 72 when the parts are in the position shown in Fig. 4 and engages the slot or notch 71 when the sliding collar 7 2 is slid out of engagement with the fixed collar 70. By this means, the sliding collar may be locked in engagement with the fixed collar 70 when it is desired that the stop fingers 14 shall move, and may be locked out of engage.- ment with the fixed collar 70 when it is desired that the shaft 61 and the attached stop ngers 14 shall remain stationary.

What I claim is:

1. The` combination of primary scoring mechanism, secondary scoring mechanism, a feeder for the secondary scoring mechanism, positive means for actuating the feeder so that the feeder makes a predetermined number of strokes for any given number of revolutions of the primary scoring mechanism and means for causing said feeder to make a different number of strokes during said given number of revolutions of t-he primary scoring mechanism.

2 The combination of a source of power, primary scoring mechanism, secondary scoring mechanism, means for connecting -said source of power and one of said scoring mechanisms to drive the same at a fixed speed, a feeder for the secondary scoring mechanism, positive means for actuating the feeder so that the feeder makes a predetermined4 number of strokes for any given number of revolutions of the scoring mechanism'which runs at fixed speed and change speed gearing between the source of power and the said feeder by which maybe changed the number of strokes made by the feeder during any given number of revolutions of the scoring mechanism running at fixed speed.

3. The combination of a source of power, primary scoring mechanism, secondary scoring mechanism, means for connecting said source of power and one of said scoring mechanisms to drive the same at a fixed speed, a feeder for the secondary scoring mechanism, a shaft by the rotation of which the feeder is given its movement andl change speed gearing between the source of power and `the said shaft causing the feeder to make a predetermined number of strokes for any given number of revolutions of the scoring mechanism which runs at xed speed, said change speed gearing also permitting said predetermined number of strokes to be varied.

4. The combination of primary scoring mechanism, secondary scoring mechzinism, lutions of the scoring mechanism which op 10 a feeder for the secondary scoring mecha- ,erates the feeder and permitting said prenism, :L shaft by the rotation of which the determined number of strokes to be Changed. feeder is given its movement and change In testimony whereof I aix my siglmture, speed gearing' between said shaft and one in presence of two witnesses.

of said scoring mechanisms, seid change EUGENE H. TAYLOR. speed gearing positively operating the Witnesses:

feeder to make a predetermined number of GEORGE P. DIKE,

strokes during any given number of revo- ALICE H. MORRISON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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