US1302211A - Cutting-machine. - Google Patents

Description

0. F. PFLANZE. CUTTING MACHINE.

APPLICATIION FILED JULY 2,1917- Patented Apr. 29, 1919.

4 SHEET$SHEET I.

C. F. PFLANZE.

cunmc MACHINE.

: APPLICATION FILED JULY L191 I,302,21 1 Patented Apr. 29,1919.

4 SHEETSSHEET 2.

,3, W Wm C. F. PFLANZE.

CUTTING MACHlNE.

APPLICATION FILED JULY 2.1911.

1 302,21 1., Patented Apr. 29, 1919.

4 SHEETSSHEET 3.

c. F. PFLANZE. CUTTING MACHINE. APPLICATION FILED JULY 2. i917- Patented Apr. 29, 1919.

4 SHEETS-SHEET 4.

WNTTFD STATLES PATENT FTME.

CHARLES F. PFLANZE, OF ST. LOUIS, MISSOURI.

CUTTING-MACHINE.

Application filed July 2, 1917.

To all whom it may concern Be it known that I, CHAnLus F. PFLANZE, citizen of the United States of America, a resident of the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Cutting-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to improvements in cutting machines, and more particularly to a gage adapted for use in performing a number of different cutting operations. The main object of the invention is to cut the material. very accurately and at the same time effect a saving of time and labor in adjusting the material relative to the cutting edge of the knife. The new structure is well adapted for use in making envelop blanks. It can be used in making many different symmetrical angular cuts, and also for the purpose of truing and trimming non-symmetrical envelop blanks formed by an envelop die.

lVith the foregoing and other objects in view the invention comprises the novel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings wherein is shown the preferred embodiment of the invention; however, it is to be understood that the invention c'omprehends changes, variations and modifications which come within the scope of the claims hereunto appended.

Figure I is a plan view showing a portion of a cutting machine provided with a main gage and an auxiliary gage.

Fig. II is a longitudinal section taken approximately. through the center of the auxiliary gage.

Fig. III is an enlarged vertical section taken approximately on the line III-III, Fig. II.

Fig. IV is a plan view of one of the stop arms.

Fig. V is a side elevation of the stop arm shown in Fig. IV.

Fig. VI is a vertical section showing the cutting elements and the gages.

Fig. VII is a fragmentary plan view showing the main gage, the auxiliary gage and the work fitted to the auxiliary gage,

the cutting line being shown by dotted lines.

Fig. VIII is a view similar to Fig. VII,

Specification of Letters Patent.

Patented Apr. 29, 1919..

Serial No. 178,095.

showing the auxiliary gage in a different position.

Fig. IX is a fragmentary plan view of a portion of the auxiliary gage showing gage members slightly different from the similar members shown in Fig. VIII.

Fig. X is a fragmentary plan view showing the manner in which the auxiliary gage is used in truing and trimming envelop blanks. To illustrate the invention I have shown a paper cutting machine provided with a horizontal work table A, a knife carrier B (Fig. VI) movable toward and away from said table, a blade 1 secured to said knife carrier, and a clamping bar C movable toward and away from the table. Any suitable mechanism may be used to reciprocate the knife carrier B and clamp bar C. D designates a main gage, arranged parallel with the blade 1 and adapted to be engaged by the work in performing some of the cutting operations. The main gage D rests upon the horizontal table A and it is provided with a depending lug 2 which extends through a slot 3 in said table. An adjusting screw 4: (Fig. V'I) fitted to the lug 2 may be adjusted to move the main gage D toward and away from the cutting line.

The auxiliary gagepreferably comprises a pair of gage members 5 arranged at an angle to each other to form an angular recess for the work. These gage members 5 may be pivotally connected together at 6, as shown in Fig. I, or they may be made as shown at 5 in Figs. VII, VIII and IX. The gage members 5 or 5 rest upon the table A and they have fiat vertical faces adapted to be engaged by the work W, which may consist of superposed sheets of paper, as shown in Figs. VI, VII and VIII. Each gage member 5 or 5 is provided at its upper edge with a lug 7 having a circular opening for the reception of a vertical gage post 8. The gage posts are shown most clearly in Figs. I, II and VI. The gage members 5 or 5 may be readily lifted from the gage posts 8, without disturbing any of the other elements of the auxiliary gage.

The gage holder comprises a pair of arms 9 to which the gage posts 8 are secured, a pivot pin 10 passing through said arms and secured to an abutment block E, and a screw 11 for adjusting the arms 9 toward and from each other. This adjusting screw is fitted to threaded posts 12, the latter being pivoted to the arms 9. Right and left hand threads are formed on the screw member 11, as shown in Fig. I, so that the arms 9 will move toward or away fromeach other in response to rotary movements of this double screw.

It will now be understood that the gage holding arms 9 may be adjusted to receive difierent gage members or 5, also to move the pivoted gage members 5 toward and away from each other. In making an adjustment of this kind, the gage holding arms move in opposite directions about the axis of their pivot 10. These arms can also be moved simultaneously, in'the same direction, about the axis of pivot 10 for the purpose of shifting the auxiliary gage from the position shown in Fig. VII to the position shown in Fig. VIII.

To accomplish this ina highly desirable manner, the gage holding arms are secured to an'oscillatory carriage F consisting of a horizontal plate and a pair of links 13 and lipivoted to said plate. The pivot pin 10 passes through the oscillatory carriage F, and said carriage can be turned about-the axis of said pin. The gage holding arms'9 can be adjusted independently of the oscillatory carriage in the manner previously pointed out, and the carriage may be turned forthe purposeof moving the arms 9, simultaneously, in the same direction.

To obtain this simultaneous movement the screw 11, secured to the arms 9, passes through the link 13 which forms part of the oscillatory carriage, and collars 1.5 engaging opposite sides oflink 13, are secured to the screw 11. The link 13 is preferably slotted (Fig. II) to receive the screw 1.1.

In forming angular cuts symmetrical with the cutting line, it is necessary to locate the work lVin two predetermined positions rel ative to said line, as shown by F VII and VIII. This is accomplished by predetermining one of the positions and then adjusting a stop device so that the auxiliary gage may be easily and quickly shifted from one position to another.

The stop device comprises a pair of stop arms 17, loosely mounted on the pivot 10, an adjusting screw 11 connecting said step arms, and collars fixed to said screw. Collars 15 lie at'opposite sides of the link 14 which forms part of the oscillatory carriage F. Therefore, the stop arms 17 move with the oscillatory carriage. The screw 11 may be adjusted independently of the can riage for the purpose of moving th stop arms 17 toward and awayfrom each other. A stationary stop lug 18, fixedto the abutment device E, cooperates with the step arms 17 to limit the movements of the oscillatory carriage F thereby limiting the movement of the gage members 5 or 5. When the stop arms 17 are adjusted as shown in Fig. I. they engage the stationary stop lug 18, thereby preventing the oscillatory carriage F from turning on the axis of pivot 10. This is due tothe fact that the link 14 forming part of the oscillatory carriage, is confined between the collars 15 on the screw 11,

While the stop arms 17, also secured to said screw, engage the stationary lug '18.

When the stop arms 17 are adjusted away from each other, as shown in F VII and VIII, the auxiliary gage devicemayibe readily shifted fromone position to another, and it will be stopped in the desired positionsby the arms 17 and the stationary lug 18. Symmetrical cuts, at various diiferent angles, can be made very accurately byaidjusting the stop device, and when the structure is once adjusted, cuts of the (same kind can be made repeatedly without further adjustment.

.A well-known type of paper cutting machineincludes a main .gage D, parallel with the cuttingedge of the'blade -l, and a work table A provided -withthe slot 3. To facilitate the application of my auxiliary gageito armachine of this kind, the abutment device E is provided with a flat abutment'flange '20 whichengages the main gage D, and also provided on its bottom face with a lug 21 closely'fitted-to theiwalls of the'slot 3. All of ithe movable elements of the auxiliary gage are secured to the abutmentpdevice E, and the latter can be very easily fitted to the work table A and main gage D, so as to very accurately locate the auxiliary gage in the desired position with respect to the cutting edge.

Vllhen all of the preliminary adjustments are made for using the gage, the various members should be mounted so that the oscillating carriage F moves freely about the pivot 10, and at the. same time the members 9 and-17 should be held together by: the pivot 10,so they act as one piece and do not freely move relative to eachother, but are secured to the oscillating carriage so ;as to imove around the pivot 10 with said carriage.

Envelop "blanks are: sometimes formed 1 by the use of a die conforming to the configurz tion of the blanks, the die'being forced clownwardly onto apile ofipaper-so as to form a large number of blanks at one operation. The blanks formed in this -manner -are usuallymore or less unsymmetricahthis being due to the fact that the sheets ofipaper slip, on each-other and become disarranged during the cutting operation. When folded, the blank constitutes a rectangular figure, and all of the flaps shouldbe symmetrical with the edges of this figure. The rectangular figure in question-is indicated by: the dotted lines H in Fig. If the=various flaps are not symmetrical with this figure, the envelop will be more or less unsymmetrical. I, therefore, use my auxiliary gage in trimming the edges of blanks formed by dies, and

when so trimmed, all of the flaps are symmetrical with the rectangular figure H shown in Fig. X. To accomplish this, the gage members 5 or 5 are'lifted from the gage posts 8, and these oppositely disposed gage posts are then adjusted to enter the recesses 25 at the corners of the rectangular figure. The pile of blanks are thrust against the vertical faces of the gage posts 8, and the corners of the rectangular figures are thus placed in vertical alinement with each other. The gage holding arms 9 and their gage posts 8 can be adjusted from one position to another as already pointed out in referring to Figs. VII and VIII, and by following this practice, all of the flaps or wings can be trimmed and made symmetrical ,with the rectangular figure H.

I claim 1. In a cutting machine, a work table, a blade for cutting the work on said table, a gage for predetermining the location of the work relative to said blade, said gage comprising diverging gage members arranged .to form an angular recess for the work, a

gage holder to which diverging gage members are secured, an oscillatory carriage to which said gage holder is pivoted, said gage holder being movable about the axis of its pivot to locate said diverging gage members in difierent positions relative to the work, and adjustabl means whereby said oscillatory carriage is stopped in its two extreme positions.

2. In a cutting machine, a work table, a blade for cutting the work on said table, a gage for predetermining the location of the work relative to said blade, said gage comprising diverging gage members arranged to form an angular recess for the work, a pivotally mounted gage holder including adjustable gage holding members to which said diverging gage members are secured, said gage holder beingmovable about the axis of its pivot to locate said diverging gage members in difiierent positions relative to the work, and means for stopping said gage holder in two different extreme positions, the stopping means being adjustable independently of said gage holding members to vary the extreme positions of the gage holder.

3. In a cutting machine, a work table, a

blade for cutting the work on said table, a

gage for predetermining the location of the work. relative to said blade, said gage comprising diverging gage members arranged to form an angular recess for the work, and a gage holder including two pivotally mounted arms to which said diverging gage members are secured, said pivotally mounted arms being adjustable toward and away from each other about the axis of their pivot, and said arms being movable simultaneously, in the same direction about said axis to locate said diverging gage members in different positions relative to the blade.

' 4. In a cutting machine, a work table, a blade for cutting the work on said table, a gage for predetermining the location of the work relative to said blade, said gage comprising oppositely disposed gage members adapted to be engaged by'the work, and a holder for said gage members, said holder comprising gageholding members adjustable relative to the gage and said holder being adjustable to different predetermined positions to locate said oppositely disposed gage members in different positions symmetrical with respect to said blade.

'5. In a cutting machine, a work table, a blade for cutting the work on said table, a gage forpredetermining the location of the work relative to said blade, said gage comprising oppositely dis osed gage members adapted to be engaged y the work, a holder for said gage members, said holder being adjustable to different predetermined positions to locate said oppositely disposed gage members in different positions symmetrical with respect to said blade, and an adjustable stop device comprising adjustable stop members whereby said holder is stopped in said predetermined positions.

6. In a cutting machine, a work table, a blade for cutting the work on said table, a gage for predetermining the location of the work relative to said blade, said gage comprising oppositely disposed gage members adapted to be engaged by the work, and a holder for said gage members including oppositely disposed pivotally mounted gage holding members movable toward and away from each other, said pivotally mounted gage holding members being also movable simultaneously in the same direction to locate the gage members in difiierent positions symmetrical. with respect to said blade.

7. In a cutting machine, a work table, a blade for cutting the work on said table, a gage for predetermining the location or the work relative to said blade, said gage comprising oppositely disposed gage members adapted to be engaged by the work, a holder for said gage members including oppositely disposed pivotally mounted gage holding members movable toward and away from each other, said pivotally mounted gage holding members being also movable simul taneously in the same direction to locate the gage members in difi'erent positions symmetrical with respect to said blade, and a stop device for limiting the movements of said pivotally mounted gage holding members to predetermine the positions of the gage members.

8. In a. cutting machine, a work table, a blade for cutting the work on said table, a gage for predetermining the location of the work relativeto said blade, said gage comprising oppositely disposed gagemembers adapted to be engaged by the work, a {pair of gage holding arms to which said gage members are securechand an oscillatory carriage to which said gage holding arms :are pivoted, each of said gage-holding arms :being movable about theaxis of its pivot independently of said oscillatory carriage, and said gage holding arms bein -movable with said oscillatory carriage to, oc-a-te the-gage members in different, positions symmetrical with respect :to said blade.

9. In acuttingm'achine, a work table,a blade for cuttingthe workon said table, gage for predetermining the locationlofwthe workrelative to said blade, saidgagecomprising oppositely disposed gage members adapted to beengaged by the work,-a pair of gage holding arms to which said gage members aresecm'ech-an oscillatory carriage to which said gage holding arms are pivoted, each of said gage holding arms being movable about :the axis of its pivot independently of saidoscillatory carriage, and said gage holding arms being movable with said oscillatory carriage to locate the gage members in difl'erent positionssymmetrical with respect to saidbl-adc, and a stop deVice lasso-- ciated with said carriage to predetermine -the syimnetrical positions. of said gage members.

10. In a cutting machine, a worktable, a blade for cuttingithe work on said'table, a gage for predetermining the location of the work relativeto said blade, said gage'comprising oppositely disposed gage members adapted to be engaged bythe work, a holder for said gagemembers, and a'carriage for said holder, saidholder being-movable with said carriage to locate-said oppositelydisposed gage members in different positions symmetrical with said blade, and said holder being adjustableindependently of said carriage.

11. In a cutting machine, a work table, a bladefor cutting the work on said table, a for predetermining the location of the work relative to saidblade,isaid gage comprising oppositely disposed gage members adapted to be engaged by the work, aholder for said gage members, a-carriageforsaid holder, said holder being movable with-said carriage to locate said oppositely disposed gage members in different positions symmetrical with said blade, a-nda stop device wherebythe carriage is stopped in two different positions to predetermine the symmetrical positions of said gage members, said stop device comprising stop members movable to different positions to change the symmetrical positions of. said gage members.

12. In a cutting machine, awork table, a blade-for cutting the workonsaidtable, a gagedfor predeterminin the location of the work relative tosaid blade, said gage comprising oppositely :disposed gage members nacaen adapted-torbe engaged by the work, a holder for said gage members, a carriage for said holder, said holder being movable with said carriage to locate said oppositely disposed g ge members in different positions symmetrical with said blade, and a stop device wherebythe carriage is stopped in two different positions to predetermine the symmetrical positions of said gage members, said stop device comprising a pair of stop members carried by said carriage, and said stop members being adjustable independently of the carriage.

13. In acutting machine, a work tab-1e, a blade for cuttingthe work on said table, a gage for predeterminingthelocation of the work relativeto said blade, said gage comprising oppositely disposed gage members adapted to be engaged by the work, aholder torsaid gage members including a pairof oppositely disposed gage holding members, ancoscillatorv carriag to which said gage holding members are pivoted, an adjusting screw-rotatably fitted to said oscillatory carriage and fitted to said gage holding members, said adjusting screw being free to move independently ofsa-id oscillatory carriage so as to adjustsaid gage holding memberstowardand away from each other, and said adj ustingscrew and gage holding members being movable with said oscillatory carriage to locate said gage members indifferent positions symmetrical withsaid blade.

1%. In a cutting machine, a work table, a bladeior-cntting the workon said table, a gagefor precletermining;the location ofithe workrelative to said blade, said gage comprising oppositely disposed ,gage members adapted to be engaged by theiwork, a holder for said gagemembers including a pair of oppositely disposed gage holding members, an oscillatory carriage to whichsaid gage holding membersrare pivoted,..a n adjusting screw rotatably fitted tosaid oscillatory carriage andfitted tosaid gage holding members, said adjusting screw being free to move independently of said oscillatory carriage so as to; adjust saidigage holdingmemberstoward and away from eachother, and said adjusting screw and gage holding members being movable with said oscillatory carriage to locate said gage members in different positions symmetrical with said blade, stop arms'pivoted to said oscillatory carriage, a screw for adjusting said stop arms toward and away' from eacl1.otl1er, thelast mentioned screw being carried by said oscillatory carriage, and a stationary stop member arranged between said stop arms to limit the movements of said oscillatory carriage.

15. {In a cuttingmachine, a workta-ble, a blade for cutting the work onsaidtable, a main gage mounted on said table. and adapted to be engaged by the work acted upon by said'blade, said main gage being parallel with said blade, and an auxiliary gage associated with said blade and main gage to cut the work at diiferent angles symmetrical with said blade, said auxiliary gage including oppositely disposed gage members adapted to be engaged by the work, and a holder for said oppositely disposed gage members, said holder being adjustable to diflerent predetermined positions to locate said oppositely disposed gage members in diiierent positions symmetrical with-said blade, and an adjustable stop device where by said holder is stopped in said difl'erent symmetrical positions.

16. In a cutting machine, a Work table provided with a slot, a blade for cutting the work on said table, a main gage mounted on said table and adapted to be engaged by the work, said main gage being adjustable toward and away from said blade, and an auxiliary gage associated with said blade and main gage to cut the work at different angles symmetrical with said blade, said auxiliary gage comprising oppositely disposed gage members adapted to be engaged by the work, a holder for said oppositely disposed gage members, and an abutment device to which said holder is adjustably secured, said abutment device being engaged with said main gage and provided with an extension which lies in said slot in the work table.

17. In a machine for trimming sheets of paper having recessed edges, a Work table, a blade for cutting piles of said paper sheets on said work table, and a gage for predetermining the location of the paper sheets relative to said blade, said gage comprising Goples of this patent may be obtained for five cents oppositely disposed gage members arranged to lie in the recessed portions of said paper sheets, so as to locate the recesses in each sheet in alinement with the corresponding recesses in the other sheets.

18. In a machine for trimming piles oil? envelop blanks having recesses forming the corners of a rectangular figure, a work table, a. blade for trimming the blanks on said table, and a gage for alining the recesses of each blank with the corresponding recesses in the other blanksand at the same time predetermining the location of the rectangular figures relative to said blade, said gage comprising oppositely disposed gage members arranged to enter the recesses at opposite edges of the blanks.

19. In a machine for trimming piles of envelop blanks having recesses forming the corners of a rectangular figure, a work table, a blade for trimming the blanks on said table, and a gage for alining the recesses of each blank with the corresponding recesses in the other blanks and at the same time predetermining the location of the rectangular figures relative to said blade, said gage comprising oppositely disposed gage members having vertical faces adapted to enter the recesses at opposite edges of the blanks, and a holder for said gage members, said holder being adjustable to difierent positions so as to locate said oppositely disposed gage 1nembers in different positions symmetrical with said blade.

In testimony that I claim the foregoing I hereunto aflix my signature.

CHARLES F. PFLANZE.

each, by addressing the Commissioner or Patents,

Washington, D. G.

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