US1729688A - Paper-cutting machine - Google Patents

Paper-cutting machine Download PDF

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Publication number
US1729688A
US1729688A US158326A US15832626A US1729688A US 1729688 A US1729688 A US 1729688A US 158326 A US158326 A US 158326A US 15832626 A US15832626 A US 15832626A US 1729688 A US1729688 A US 1729688A
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United States
Prior art keywords
pressure
clamp
frame
lever
spring
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Expired - Lifetime
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US158326A
Inventor
Seybold Charles
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Harris Corp
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Harris Seybold Potter Co
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Priority to US158326A priority Critical patent/US1729688A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/1828—Cam, lever, and slide

Definitions

  • My invention relates to the clamping mechanism for power aper cutting machines in which the clamp or holding the paper under the action of the cutting knife is actuated by direct spring pressure from the main driving mechanism of the machine without the intervention of any friction clutch mechanism to hold the clamp to its work when the maximum clamp pressure has been attained.
  • the invention consists in that certain novel construction and arrangement of parts to be hereinafter more particularly pointed out and claimed, and in the main consists of a rearrangement and reconstruction of the clamping mechanism embodying the principles set forth in my Patent #1,57 5,649 of March 9, 1926, whereby much more eflicient and satisfactory results are attained especially with paper cutters of large size and extreme width of cutting knife.
  • Figure 1 is a side elevation of the machine.
  • Figure 2 is a side elevation of the main pivotal frame and operating parts of the mechanism.
  • Figure 3 is a plan view of the brake controlling devices.
  • Figure 4 is a detail end elevation illustrating the clamp pressure spring and its connections.
  • Figure 5 is a detail side elevation of the main pivotal frame.
  • Figure 6 is a detail side elevation of the pressure lever.
  • Figures 7 and 8 are respectively a. side elevation and Ian view of the brake shoe.
  • 1 are the substantial base standards in which is mounted the various working parts
  • 2 is thecutting table
  • 2" the shaft 5 carried by this bracket is pivoted a main rocking frame 6 (shown by itself in Fig. 5).
  • a pair of fiat hangers 7 are also pivotally mounted on shaft 5 which hangers carry at the lower end rollers 8 and 9, the roller 8 being in contact with the cam 10 mounted on the power driven shaft 11 of the machine.
  • the other roller 9 is in contact with the inclined end of the pressure lever 12 pivoted in the stud opening 13 on the main rock frame 6.
  • the pressure lever 12 is provided with a U- shaped hanger 14 pivoted at 15, in which is suspended a coiled spring 16 which has its upper bearing at 17 on the horizontal extension of the rocking frame 6.
  • a tie rod 18 also connects the knuckle 19 of the frame 6 with the horizontal extension to give additional rigidity to the frame.
  • the clamping pressure is applied through the clamp pressure s ring 20 which is suspended in a U-shape hanger 21 mounted at the outer end 22 of the pressure lever 12.
  • the upper end of the spring rod of this 5 ring is swiveled on the fiat links 23 whic are hinged at 24 to the frame 6.
  • From this swivel 25 are hung the pull bars 26 which hook below the pair of pressure beams 27 which is fulcrumed in the stud 28 on the lower end of the frame 6.
  • the noses 29 of these pressure beams bear against roller 30 mounted in the lower end of a crank lever 31 keyed on the clamp shaft 32 mounted in the main frame.
  • a clam lever 33 On each end of this clamp shaft 32 which extends from side to side of the machine is keyed a clam lever 33 which is connected to'the pull inks 34 at each end of the paper clamp bar 3.
  • the lower anti; of the pull bars 26 are supplied with a U iron 34' carrying pins 35 and the upper ed e of the beam 27 1s rovided with a series 0 square notches-586.
  • the pins 35 may be dro ped into any notch desired to inc loasn or iminish the leverage of the pressure beam 27 by shifting the lifting position of the pull bars 26 along the beam shoe 41 fulcrumed at 42 (Figs. 7 and 8) in a brake shoe holder 43 which is pivoted on the pin 44 in the rock frame 6.
  • A'spring pin 45 mounted in a socket piece 46 in the holder 43 bears against a plate 47 on the rock frame 6.
  • the brake shoe 41 is normally held out of engagement with the brake wheel 40 by a lift rod 48 coupled to the brake holder in'the slot 48 in the frame 6 with its lower end resting on a lug 49 on the pressure lever 12 when this lever is pressed into engagement with the set screw 50 on the rock frame 6.
  • the operation of the mechanism is as follows :
  • the cam 10 Upon throwing in the clutch on the driving shaft 11 the cam 10 begins to rotate in a clockwise'direction in engagement with theroller 8, and the rock frame 12 and all the parts mounted on it are rocked as a unit on shaft 5. If there is no paper pile positioned under the clamp the parts rotate as a unit and the nose 29 on the pressure beam 27 bears against the roller 30in the crank lever 31 and the clamp lever pulls links 34 bringing the clamp down to the table. After the clamp has reached the table the cam stroke can no longer rock the frame 6, but the remainder of the cam stroke will then rock the pressure lever 12.
  • V 1 In a-clamp actuating device for power papucutting machines, a clamp, a rock shaft having connecting meansfor actuating the clamp, apressure beam in. engagement with I theroclgshaft, a rocking frame, a pressure leverpivotally 1 mounted on the rocking frame, a spring exerting pressure on one end of the pressure leveig a second spring compressible by relative movement of the rocking frame and the pressure lever adapted to rotatethe pressure beam, and power means for causing movement of the pressure lever to compress the said second spring.
  • a link pivoted on the rocking frame; a pressure lever pivotally mounted on the rocking frame, a pressure beam having connecting means for actuating the clamp, means for actuating the pressure beam comprisin a spring exerting pressure between one en of the pressure lever and the link and the pressure beam, and a second spring intermediate the pressure lever and the rocking frameto return the pressure lever to normal position.
  • a clamp actuating device for aper cutting machines, a clamp, a rocking rame, a link pivoted on the rocking frame; a ressure lever pivotally mounted on the roc g frame, a pressure beam having connecting means for actuating the clamp and means for actuating the pressure beam comprising a spring exerting pressure between one end of the pressure lever and the link, pull bars connectlng the link and the pressure beam, a second spring intermediate the pressure lever and the rocking frame to return the pressure lever to normal position, a ower driven cam for actuating said rocking rame and a brake to automatically hold the clamp against'any back movement,
  • a link pivoted on the roc mg frame; a pressure lever pivotally mounted on the rocking frame, a pressure beam having connecting means for actuating the clamp,.and means for actuating the. pressure beam comprising a spring exerting pressure between one end of the pressure lever and the link, pull bars connecting the link and the pressure beam, a second spring intermediate the pressure lever and the rocking frame to return'the pressure lever. to normal position, a power driven cam for actuating said rocking frame,
  • a brake pivotally mounted on the rocking frame, a spring to actuate the brake, an
  • connecting mechanism intermediate the brake and pressure lever to control the brake operation.
  • a clamp In a clamp actuating device for paper cutting machines, a clamp, a rocking frame, a link pivoted on the rocking frame; a pressure lever pivotally mountd on the rocking frame,

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

och-1, 1929. SEYB LD 1,729,688
PAPER CUTTING MACHINE Filed Dec. 31, 1926 5 Sheets-Sheet l V I I IINV'ENYSTO-R. m 4 M A TTORNE Y.
Oct. 1, 1929. c. SEYBOLD 1,729,688
PAPER CUTTING MACHINE Filed Dec. 51, 1926 3 Sheets-Sheet 2 I INVEN TOR. 141 4 M A TTORNE Y.
Oct 1, 1929. Q SEYBQLD 1,729688 PAPER CUTTING MACHINE Filed Dec. 31, 1,926 3 Sheets-Sheet 5 5&4 d47INVENTOR. W
A TTORNEY.
Patented Oct. 1, 1929 UNITED STATES PATENT OFFICE CHARLES sEYBo D, or DAY'rO OHIO, ASSIGNOR To run HARRIS-SEYBOLD-POTTER COMPANY, or DAYTO OHI A CORPORATION or DELAWARE PAPER-=CUTTING MACHINE Application filed December 31, 1926. Serial No. 158,326.
My invention relates to the clamping mechanism for power aper cutting machines in which the clamp or holding the paper under the action of the cutting knife is actuated by direct spring pressure from the main driving mechanism of the machine without the intervention of any friction clutch mechanism to hold the clamp to its work when the maximum clamp pressure has been attained. The invention consists in that certain novel construction and arrangement of parts to be hereinafter more particularly pointed out and claimed, and in the main consists of a rearrangement and reconstruction of the clamping mechanism embodying the principles set forth in my Patent #1,57 5,649 of March 9, 1926, whereby much more eflicient and satisfactory results are attained especially with paper cutters of large size and extreme width of cutting knife.
In the drawings Figure 1 is a side elevation of the machine. Figure 2 is a side elevation of the main pivotal frame and operating parts of the mechanism.
Figure 3 is a plan view of the brake controlling devices.
' Figure 4 is a detail end elevation illustrating the clamp pressure spring and its connections.
Figure 5 is a detail side elevation of the main pivotal frame.
Figure 6 is a detail side elevation of the pressure lever. Figures 7 and 8 are respectively a. side elevation and Ian view of the brake shoe.
In the rawings I have only illustrated such parts of the complete paper cutting machine as may be necessary to show the application of my improved 0 amp pressure mechanism to an Ordinary paper cutter, and it will be understood that the mechanism can be applied to a great variety of familiar types of machines.
As illustrated, 1 are the substantial base standards in which is mounted the various working parts, 2 is thecutting table, 2" the shaft 5 carried by this bracket is pivoted a main rocking frame 6 (shown by itself in Fig. 5). A pair of fiat hangers 7 are also pivotally mounted on shaft 5 which hangers carry at the lower end rollers 8 and 9, the roller 8 being in contact with the cam 10 mounted on the power driven shaft 11 of the machine. The other roller 9 is in contact with the inclined end of the pressure lever 12 pivoted in the stud opening 13 on the main rock frame 6. To hold these parts firmly in position during the first rocking movement of the frame 6, as will be later described, the pressure lever 12 is provided with a U- shaped hanger 14 pivoted at 15, in which is suspended a coiled spring 16 which has its upper bearing at 17 on the horizontal extension of the rocking frame 6. A tie rod 18 also connects the knuckle 19 of the frame 6 with the horizontal extension to give additional rigidity to the frame.
The clamping pressure is applied through the clamp pressure s ring 20 which is suspended in a U-shape hanger 21 mounted at the outer end 22 of the pressure lever 12. The upper end of the spring rod of this 5 ring is swiveled on the fiat links 23 whic are hinged at 24 to the frame 6. From this swivel 25 are hung the pull bars 26 which hook below the pair of pressure beams 27 which is fulcrumed in the stud 28 on the lower end of the frame 6. The noses 29 of these pressure beams bear against roller 30 mounted in the lower end of a crank lever 31 keyed on the clamp shaft 32 mounted in the main frame. On each end of this clamp shaft 32 which extends from side to side of the machine is keyed a clam lever 33 which is connected to'the pull inks 34 at each end of the paper clamp bar 3.
To vary the pressure ap lied to the pressure beam 27, the lower anti; of the pull bars 26 are supplied with a U iron 34' carrying pins 35 and the upper ed e of the beam 27 1s rovided with a series 0 square notches-586.
y raising the U-iron the pins 35 may be dro ped into any notch desired to inc loasn or iminish the leverage of the pressure beam 27 by shifting the lifting position of the pull bars 26 along the beam shoe 41 fulcrumed at 42 (Figs. 7 and 8) in a brake shoe holder 43 which is pivoted on the pin 44 in the rock frame 6. A'spring pin 45 mounted in a socket piece 46 in the holder 43 bears against a plate 47 on the rock frame 6. The brake shoe 41 is normally held out of engagement with the brake wheel 40 by a lift rod 48 coupled to the brake holder in'the slot 48 in the frame 6 with its lower end resting on a lug 49 on the pressure lever 12 when this lever is pressed into engagement with the set screw 50 on the rock frame 6.
When the pressure lever is rocked to apply pressure to the clamp, the lift rod is released and the sprin pin 45 rocks the brake holder'and forces the brake shoe into engagement with the brake wheel, thus positively looking the rock frame 6 in its position and preventing any backward motion induced on it by the back pressure of the springs 16 and 20 on the pressure lever 12 and pressure beam 27. v
The operation of the mechanism is as follows :Upon throwing in the clutch on the driving shaft 11 the cam 10 begins to rotate in a clockwise'direction in engagement with theroller 8, and the rock frame 12 and all the parts mounted on it are rocked as a unit on shaft 5. If there is no paper pile positioned under the clamp the parts rotate as a unit and the nose 29 on the pressure beam 27 bears against the roller 30in the crank lever 31 and the clamp lever pulls links 34 bringing the clamp down to the table. After the clamp has reached the table the cam stroke can no longer rock the frame 6, but the remainder of the cam stroke will then rock the pressure lever 12. As this lever recedes from the set screw 50 the brake shoe 41 comes into engagement with the brake wheel on'the pinions 38, and the rock frame 6 is locked in its advanced position, with the spring 20 transmitting f its pressure through the pull bars 26 and the pressure beam 27 to the clamp. Upon reaching the dwell of the cam all members of the clamping mechanism are atrest. As the cam continues to rotate the clamping pressure is adually released, the pressure lever 12 'is orced by the spring 16 to return to its normal position in contact with the set screw 50 which re lieves the clamping pressure, and the clamp is returned to its raised position by a suitable counter weight.
When it is desired for light pressure work to prevent the brake shoe from operating, I
provide a hook 51 which is pivoted at 52 on the upper end of the plate 47 on rock frame 6 and arranged to engage a pin 53 on the brake shoe holder. This hook is only used for looking out thebrake when light clamping ressure is desired, which would not cause the ocking pinions to reverse.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is V 1, In a-clamp actuating device for power papucutting machines, a clamp, a rock shaft having connecting meansfor actuating the clamp, apressure beam in. engagement with I theroclgshaft, a rocking frame, a pressure leverpivotally 1 mounted on the rocking frame, a spring exerting pressure on one end of the pressure leveig a second spring compressible by relative movement of the rocking frame and the pressure lever adapted to rotatethe pressure beam, and power means for causing movement of the pressure lever to compress the said second spring.
2. In a clamp actuating device for" paper cutting machines, a clamp, a rocking frame,
a link pivoted on the rocking frame; a pressure lever pivotally mounted on the rocking frame, a pressure beam having connecting means for actuating the clamp, means for actuating the pressure beam comprisin a spring exerting pressure between one en of the pressure lever and the link and the pressure beam, and a second spring intermediate the pressure lever and the rocking frameto return the pressure lever to normal position.
3.In a clamp actuating device for aper cutting machines, a clamp, a rocking rame, a link pivoted on the rocking frame; a ressure lever pivotally mounted on the roc g frame, a pressure beam having connecting means for actuating the clamp and means for actuating the pressure beam comprising a spring exerting pressure between one end of the pressure lever and the link, pull bars connectlng the link and the pressure beam, a second spring intermediate the pressure lever and the rocking frame to return the pressure lever to normal position, a ower driven cam for actuating said rocking rame and a brake to automatically hold the clamp against'any back movement,
4. In a clamp actuating device for paper cutting machines, a clam a rocking frame,
a link pivoted on the roc mg frame; a pressure lever pivotally mounted on the rocking frame, a pressure beam having connecting means for actuating the clamp,.and means for actuating the. pressure beam comprising a spring exerting pressure between one end of the pressure lever and the link, pull bars connecting the link and the pressure beam, a second spring intermediate the pressure lever and the rocking frame to return'the pressure lever. to normal position, a power driven cam for actuating said rocking frame,
a brake pivotally mounted on the rocking frame, a spring to actuate the brake, an
connecting mechanism intermediate the brake and pressure lever to control the brake operation.
5. In a clamp actuating device for paper cutting machines, a clamp, a rocking frame, a link pivoted on the rocking frame; a pressure lever pivotally mountd on the rocking frame,
a pressure beam having connecting means for actuating the clamp, means for actuating the pressure beam comprising a spring exerting pressure between one end of the pressure lever and the link, pull bars connecting the link and the pressure beam, and a second spring intermediate the pressure lever and the rockin frame to return the pressure lever to norrna position, a power driven cam for actuating said rocking frame, a brake pivotally mounted on the rocking frame, a spring to actuate same whereby said brake will be set upon the compression of said spring, and a rod inter= mediate said brake and pressure lever to release said brake upon the continued movement of the pressure lever.
' GHARLES SEYBGLD,
US158326A 1926-12-31 1926-12-31 Paper-cutting machine Expired - Lifetime US1729688A (en)

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